/* Copyright © 2011-2015 by Neil Jenkins. MIT Licensed. */
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( function ( doc, undefined ) {
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"use strict";
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var DOCUMENT_POSITION_PRECEDING = 2; // Node.DOCUMENT_POSITION_PRECEDING
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var ELEMENT_NODE = 1; // Node.ELEMENT_NODE;
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var TEXT_NODE = 3; // Node.TEXT_NODE;
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var DOCUMENT_NODE = 9; // Node.DOCUMENT_NODE;
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var DOCUMENT_FRAGMENT_NODE = 11; // Node.DOCUMENT_FRAGMENT_NODE;
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var SHOW_ELEMENT = 1; // NodeFilter.SHOW_ELEMENT;
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var SHOW_TEXT = 4; // NodeFilter.SHOW_TEXT;
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var START_TO_START = 0; // Range.START_TO_START
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var START_TO_END = 1; // Range.START_TO_END
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var END_TO_END = 2; // Range.END_TO_END
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var END_TO_START = 3; // Range.END_TO_START
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var ZWS = '\u200B';
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var win = doc.defaultView;
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var ua = navigator.userAgent;
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var isAndroid = /Android/.test( ua );
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var isIOS = /iP(?:ad|hone|od)/.test( ua );
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var isMac = /Mac OS X/.test( ua );
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var isWin = /Windows NT/.test( ua );
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var isGecko = /Gecko\//.test( ua );
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var isIElt11 = /Trident\/[456]\./.test( ua );
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var isPresto = !!win.opera;
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var isEdge = /Edge\//.test( ua );
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var isWebKit = !isEdge && /WebKit\//.test( ua );
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var isIE = /Trident\/[4567]\./.test( ua );
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var ctrlKey = isMac ? 'meta-' : 'ctrl-';
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var useTextFixer = isIElt11 || isPresto;
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var cantFocusEmptyTextNodes = isIElt11 || isWebKit;
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var losesSelectionOnBlur = isIElt11;
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var canObserveMutations = typeof MutationObserver !== 'undefined';
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var canWeakMap = typeof WeakMap !== 'undefined';
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// Use [^ \t\r\n] instead of \S so that nbsp does not count as white-space
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var notWS = /[^ \t\r\n]/;
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var indexOf = Array.prototype.indexOf;
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// Polyfill for FF3.5
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if ( !Object.create ) {
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Object.create = function ( proto ) {
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var F = function () {};
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F.prototype = proto;
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return new F();
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};
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}
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/*
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Native TreeWalker is buggy in IE and Opera:
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* IE9/10 sometimes throw errors when calling TreeWalker#nextNode or
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TreeWalker#previousNode. No way to feature detect this.
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* Some versions of Opera have a bug in TreeWalker#previousNode which makes
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it skip to the wrong node.
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Rather than risk further bugs, it's easiest just to implement our own
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(subset) of the spec in all browsers.
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*/
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var typeToBitArray = {
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// ELEMENT_NODE
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1: 1,
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// ATTRIBUTE_NODE
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2: 2,
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// TEXT_NODE
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3: 4,
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// COMMENT_NODE
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8: 128,
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// DOCUMENT_NODE
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9: 256,
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// DOCUMENT_FRAGMENT_NODE
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11: 1024
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};
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var always = function () {
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return true;
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};
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function TreeWalker ( root, nodeType, filter ) {
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this.root = this.currentNode = root;
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this.nodeType = nodeType;
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this.filter = filter || always;
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}
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TreeWalker.prototype.nextNode = function () {
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var current = this.currentNode,
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root = this.root,
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nodeType = this.nodeType,
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filter = this.filter,
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node;
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while ( true ) {
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node = current.firstChild;
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while ( !node && current ) {
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if ( current === root ) {
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break;
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}
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node = current.nextSibling;
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if ( !node ) { current = current.parentNode; }
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}
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if ( !node ) {
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return null;
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}
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if ( ( typeToBitArray[ node.nodeType ] & nodeType ) &&
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filter( node ) ) {
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this.currentNode = node;
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return node;
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}
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current = node;
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}
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};
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TreeWalker.prototype.previousNode = function () {
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var current = this.currentNode,
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root = this.root,
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nodeType = this.nodeType,
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filter = this.filter,
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node;
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while ( true ) {
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if ( current === root ) {
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return null;
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}
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node = current.previousSibling;
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if ( node ) {
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while ( current = node.lastChild ) {
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node = current;
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}
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} else {
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node = current.parentNode;
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}
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if ( !node ) {
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return null;
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}
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if ( ( typeToBitArray[ node.nodeType ] & nodeType ) &&
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filter( node ) ) {
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this.currentNode = node;
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return node;
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}
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current = node;
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}
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};
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// Previous node in post-order.
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TreeWalker.prototype.previousPONode = function () {
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var current = this.currentNode,
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root = this.root,
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nodeType = this.nodeType,
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filter = this.filter,
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node;
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while ( true ) {
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node = current.lastChild;
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while ( !node && current ) {
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if ( current === root ) {
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break;
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}
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node = current.previousSibling;
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if ( !node ) { current = current.parentNode; }
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}
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if ( !node ) {
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return null;
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}
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if ( ( typeToBitArray[ node.nodeType ] & nodeType ) &&
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filter( node ) ) {
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this.currentNode = node;
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return node;
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}
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current = node;
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}
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};
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var inlineNodeNames = /^(?:#text|A(?:BBR|CRONYM)?|B(?:R|D[IO])?|C(?:ITE|ODE)|D(?:ATA|EL|FN)|EM|FONT|HR|I(?:FRAME|MG|NPUT|NS)?|KBD|Q|R(?:P|T|UBY)|S(?:AMP|MALL|PAN|TR(?:IKE|ONG)|U[BP])?|TIME|U|VAR|WBR)$/;
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var leafNodeNames = {
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BR: 1,
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HR: 1,
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IFRAME: 1,
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IMG: 1,
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INPUT: 1
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};
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function every ( nodeList, fn ) {
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var l = nodeList.length;
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while ( l-- ) {
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if ( !fn( nodeList[l] ) ) {
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return false;
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}
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}
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return true;
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}
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// ---
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var UNKNOWN = 0;
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var INLINE = 1;
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var BLOCK = 2;
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var CONTAINER = 3;
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var nodeCategoryCache = canWeakMap ? new WeakMap() : null;
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function isLeaf ( node ) {
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return node.nodeType === ELEMENT_NODE && !!leafNodeNames[ node.nodeName ];
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}
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function getNodeCategory ( node ) {
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switch ( node.nodeType ) {
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case TEXT_NODE:
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return INLINE;
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case ELEMENT_NODE:
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case DOCUMENT_FRAGMENT_NODE:
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if ( canWeakMap && nodeCategoryCache.has( node ) ) {
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return nodeCategoryCache.get( node );
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}
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break;
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default:
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return UNKNOWN;
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}
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var nodeCategory;
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if ( !every( node.childNodes, isInline ) ) {
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// Malformed HTML can have block tags inside inline tags. Need to treat
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// these as containers rather than inline. See #239.
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nodeCategory = CONTAINER;
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} else if ( inlineNodeNames.test( node.nodeName ) ) {
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nodeCategory = INLINE;
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} else {
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nodeCategory = BLOCK;
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}
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if ( canWeakMap ) {
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nodeCategoryCache.set( node, nodeCategory );
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}
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return nodeCategory;
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}
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function isInline ( node ) {
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return getNodeCategory( node ) === INLINE;
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}
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function isBlock ( node ) {
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return getNodeCategory( node ) === BLOCK;
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}
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function isContainer ( node ) {
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return getNodeCategory( node ) === CONTAINER;
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}
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function getBlockWalker ( node, root ) {
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var walker = new TreeWalker( root, SHOW_ELEMENT, isBlock );
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walker.currentNode = node;
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return walker;
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}
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function getPreviousBlock ( node, root ) {
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node = getBlockWalker( node, root ).previousNode();
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return node !== root ? node : null;
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}
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function getNextBlock ( node, root ) {
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node = getBlockWalker( node, root ).nextNode();
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return node !== root ? node : null;
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}
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function isEmptyBlock ( block ) {
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return !block.textContent && !block.querySelector( 'IMG' );
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}
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function areAlike ( node, node2 ) {
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return !isLeaf( node ) && (
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node.nodeType === node2.nodeType &&
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node.nodeName === node2.nodeName &&
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node.nodeName !== 'A' &&
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node.className === node2.className &&
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( ( !node.style && !node2.style ) ||
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node.style.cssText === node2.style.cssText )
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);
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}
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function hasTagAttributes ( node, tag, attributes ) {
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if ( node.nodeName !== tag ) {
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return false;
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}
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for ( var attr in attributes ) {
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if ( node.getAttribute( attr ) !== attributes[ attr ] ) {
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return false;
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}
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}
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return true;
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}
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function getNearest ( node, root, tag, attributes ) {
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while ( node && node !== root ) {
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if ( hasTagAttributes( node, tag, attributes ) ) {
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return node;
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}
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node = node.parentNode;
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}
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return null;
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}
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function isOrContains ( parent, node ) {
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while ( node ) {
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if ( node === parent ) {
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return true;
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}
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node = node.parentNode;
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}
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return false;
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}
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function getPath ( node, root, config ) {
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var path = '';
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var id, className, classNames, dir, styleNames;
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if ( node && node !== root ) {
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path = getPath( node.parentNode, root, config );
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if ( node.nodeType === ELEMENT_NODE ) {
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path += ( path ? '>' : '' ) + node.nodeName;
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if ( id = node.id ) {
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path += '#' + id;
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}
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if ( className = node.className.trim() ) {
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classNames = className.split( /\s\s*/ );
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classNames.sort();
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path += '.';
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path += classNames.join( '.' );
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}
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if ( dir = node.dir ) {
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path += '[dir=' + dir + ']';
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}
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if ( classNames ) {
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styleNames = config.classNames;
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if ( indexOf.call( classNames, styleNames.highlight ) > -1 ) {
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path += '[backgroundColor=' +
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node.style.backgroundColor.replace( / /g,'' ) + ']';
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}
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if ( indexOf.call( classNames, styleNames.colour ) > -1 ) {
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path += '[color=' +
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node.style.color.replace( / /g,'' ) + ']';
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}
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if ( indexOf.call( classNames, styleNames.fontFamily ) > -1 ) {
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path += '[fontFamily=' +
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node.style.fontFamily.replace( / /g,'' ) + ']';
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}
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if ( indexOf.call( classNames, styleNames.fontSize ) > -1 ) {
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path += '[fontSize=' + node.style.fontSize + ']';
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}
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}
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}
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}
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return path;
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}
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function getLength ( node ) {
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var nodeType = node.nodeType;
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return nodeType === ELEMENT_NODE || nodeType === DOCUMENT_FRAGMENT_NODE ?
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node.childNodes.length : node.length || 0;
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}
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function detach ( node ) {
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var parent = node.parentNode;
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if ( parent ) {
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parent.removeChild( node );
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}
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return node;
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}
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function replaceWith ( node, node2 ) {
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var parent = node.parentNode;
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if ( parent ) {
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parent.replaceChild( node2, node );
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}
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}
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function empty ( node ) {
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var frag = node.ownerDocument.createDocumentFragment(),
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childNodes = node.childNodes,
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l = childNodes ? childNodes.length : 0;
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while ( l-- ) {
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frag.appendChild( node.firstChild );
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}
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return frag;
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}
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function createElement ( doc, tag, props, children ) {
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var el = doc.createElement( tag ),
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attr, value, i, l;
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if ( props instanceof Array ) {
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children = props;
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props = null;
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}
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if ( props ) {
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for ( attr in props ) {
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value = props[ attr ];
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if ( value !== undefined ) {
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el.setAttribute( attr, props[ attr ] );
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}
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}
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}
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if ( children ) {
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for ( i = 0, l = children.length; i < l; i += 1 ) {
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el.appendChild( children[i] );
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}
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}
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return el;
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}
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function fixCursor ( node, root ) {
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// In Webkit and Gecko, block level elements are collapsed and
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// unfocussable if they have no content. To remedy this, a <BR> must be
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// inserted. In Opera and IE, we just need a textnode in order for the
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// cursor to appear.
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var self = root.__squire__;
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var doc = node.ownerDocument;
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var originalNode = node;
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var fixer, child;
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if ( node === root ) {
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if ( !( child = node.firstChild ) || child.nodeName === 'BR' ) {
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fixer = self.createDefaultBlock();
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if ( child ) {
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node.replaceChild( fixer, child );
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}
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else {
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node.appendChild( fixer );
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}
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node = fixer;
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fixer = null;
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}
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}
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if ( node.nodeType === TEXT_NODE ) {
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return originalNode;
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}
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if ( isInline( node ) ) {
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child = node.firstChild;
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while ( cantFocusEmptyTextNodes && child &&
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child.nodeType === TEXT_NODE && !child.data ) {
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node.removeChild( child );
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child = node.firstChild;
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}
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if ( !child ) {
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if ( cantFocusEmptyTextNodes ) {
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fixer = doc.createTextNode( ZWS );
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self._didAddZWS();
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} else {
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fixer = doc.createTextNode( '' );
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}
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}
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} else {
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if ( useTextFixer ) {
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while ( node.nodeType !== TEXT_NODE && !isLeaf( node ) ) {
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child = node.firstChild;
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if ( !child ) {
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fixer = doc.createTextNode( '' );
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break;
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}
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node = child;
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}
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if ( node.nodeType === TEXT_NODE ) {
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// Opera will collapse the block element if it contains
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// just spaces (but not if it contains no data at all).
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if ( /^ +$/.test( node.data ) ) {
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node.data = '';
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}
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} else if ( isLeaf( node ) ) {
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node.parentNode.insertBefore( doc.createTextNode( '' ), node );
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}
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}
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else if ( !node.querySelector( 'BR' ) ) {
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fixer = createElement( doc, 'BR' );
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while ( ( child = node.lastElementChild ) && !isInline( child ) ) {
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node = child;
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}
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}
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}
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if ( fixer ) {
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try {
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node.appendChild( fixer );
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} catch ( error ) {
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self.didError({
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name: 'Squire: fixCursor – ' + error,
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message: 'Parent: ' + node.nodeName + '/' + node.innerHTML +
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' appendChild: ' + fixer.nodeName
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});
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}
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}
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return originalNode;
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}
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// Recursively examine container nodes and wrap any inline children.
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function fixContainer ( container, root ) {
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var children = container.childNodes;
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var doc = container.ownerDocument;
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var wrapper = null;
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var i, l, child, isBR;
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var config = root.__squire__._config;
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for ( i = 0, l = children.length; i < l; i += 1 ) {
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child = children[i];
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isBR = child.nodeName === 'BR';
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if ( !isBR && isInline( child ) ) {
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if ( !wrapper ) {
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wrapper = createElement( doc,
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config.blockTag, config.blockAttributes );
|
}
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wrapper.appendChild( child );
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i -= 1;
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l -= 1;
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} else if ( isBR || wrapper ) {
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if ( !wrapper ) {
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wrapper = createElement( doc,
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config.blockTag, config.blockAttributes );
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}
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fixCursor( wrapper, root );
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if ( isBR ) {
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container.replaceChild( wrapper, child );
|
} else {
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container.insertBefore( wrapper, child );
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i += 1;
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l += 1;
|
}
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wrapper = null;
|
}
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if ( isContainer( child ) ) {
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fixContainer( child, root );
|
}
|
}
|
if ( wrapper ) {
|
container.appendChild( fixCursor( wrapper, root ) );
|
}
|
return container;
|
}
|
|
function split ( node, offset, stopNode, root ) {
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var nodeType = node.nodeType,
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parent, clone, next;
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if ( nodeType === TEXT_NODE && node !== stopNode ) {
|
return split(
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node.parentNode, node.splitText( offset ), stopNode, root );
|
}
|
if ( nodeType === ELEMENT_NODE ) {
|
if ( typeof( offset ) === 'number' ) {
|
offset = offset < node.childNodes.length ?
|
node.childNodes[ offset ] : null;
|
}
|
if ( node === stopNode ) {
|
return offset;
|
}
|
|
// Clone node without children
|
parent = node.parentNode;
|
clone = node.cloneNode( false );
|
|
// Add right-hand siblings to the clone
|
while ( offset ) {
|
next = offset.nextSibling;
|
clone.appendChild( offset );
|
offset = next;
|
}
|
|
// Maintain li numbering if inside a quote.
|
if ( node.nodeName === 'OL' &&
|
getNearest( node, root, 'BLOCKQUOTE' ) ) {
|
clone.start = ( +node.start || 1 ) + node.childNodes.length - 1;
|
}
|
|
// DO NOT NORMALISE. This may undo the fixCursor() call
|
// of a node lower down the tree!
|
|
// We need something in the element in order for the cursor to appear.
|
fixCursor( node, root );
|
fixCursor( clone, root );
|
|
// Inject clone after original node
|
if ( next = node.nextSibling ) {
|
parent.insertBefore( clone, next );
|
} else {
|
parent.appendChild( clone );
|
}
|
|
// Keep on splitting up the tree
|
return split( parent, clone, stopNode, root );
|
}
|
return offset;
|
}
|
|
function _mergeInlines ( node, fakeRange ) {
|
var children = node.childNodes,
|
l = children.length,
|
frags = [],
|
child, prev, len;
|
while ( l-- ) {
|
child = children[l];
|
prev = l && children[ l - 1 ];
|
if ( l && isInline( child ) && areAlike( child, prev ) &&
|
!leafNodeNames[ child.nodeName ] ) {
|
if ( fakeRange.startContainer === child ) {
|
fakeRange.startContainer = prev;
|
fakeRange.startOffset += getLength( prev );
|
}
|
if ( fakeRange.endContainer === child ) {
|
fakeRange.endContainer = prev;
|
fakeRange.endOffset += getLength( prev );
|
}
|
if ( fakeRange.startContainer === node ) {
|
if ( fakeRange.startOffset > l ) {
|
fakeRange.startOffset -= 1;
|
}
|
else if ( fakeRange.startOffset === l ) {
|
fakeRange.startContainer = prev;
|
fakeRange.startOffset = getLength( prev );
|
}
|
}
|
if ( fakeRange.endContainer === node ) {
|
if ( fakeRange.endOffset > l ) {
|
fakeRange.endOffset -= 1;
|
}
|
else if ( fakeRange.endOffset === l ) {
|
fakeRange.endContainer = prev;
|
fakeRange.endOffset = getLength( prev );
|
}
|
}
|
detach( child );
|
if ( child.nodeType === TEXT_NODE ) {
|
prev.appendData( child.data );
|
}
|
else {
|
frags.push( empty( child ) );
|
}
|
}
|
else if ( child.nodeType === ELEMENT_NODE ) {
|
len = frags.length;
|
while ( len-- ) {
|
child.appendChild( frags.pop() );
|
}
|
_mergeInlines( child, fakeRange );
|
}
|
}
|
}
|
|
function mergeInlines ( node, range ) {
|
if ( node.nodeType === TEXT_NODE ) {
|
node = node.parentNode;
|
}
|
if ( node.nodeType === ELEMENT_NODE ) {
|
var fakeRange = {
|
startContainer: range.startContainer,
|
startOffset: range.startOffset,
|
endContainer: range.endContainer,
|
endOffset: range.endOffset
|
};
|
_mergeInlines( node, fakeRange );
|
range.setStart( fakeRange.startContainer, fakeRange.startOffset );
|
range.setEnd( fakeRange.endContainer, fakeRange.endOffset );
|
}
|
}
|
|
function mergeWithBlock ( block, next, range, root ) {
|
var container = next;
|
var parent, last, offset;
|
while ( ( parent = container.parentNode ) &&
|
parent !== root &&
|
parent.nodeType === ELEMENT_NODE &&
|
parent.childNodes.length === 1 ) {
|
container = parent;
|
}
|
detach( container );
|
|
offset = block.childNodes.length;
|
|
// Remove extra <BR> fixer if present.
|
last = block.lastChild;
|
if ( last && last.nodeName === 'BR' ) {
|
block.removeChild( last );
|
offset -= 1;
|
}
|
|
block.appendChild( empty( next ) );
|
|
range.setStart( block, offset );
|
range.collapse( true );
|
mergeInlines( block, range );
|
|
// Opera inserts a BR if you delete the last piece of text
|
// in a block-level element. Unfortunately, it then gets
|
// confused when setting the selection subsequently and
|
// refuses to accept the range that finishes just before the
|
// BR. Removing the BR fixes the bug.
|
// Steps to reproduce bug: Type "a-b-c" (where - is return)
|
// then backspace twice. The cursor goes to the top instead
|
// of after "b".
|
if ( isPresto && ( last = block.lastChild ) && last.nodeName === 'BR' ) {
|
block.removeChild( last );
|
}
|
}
|
|
function mergeContainers ( node, root ) {
|
var prev = node.previousSibling,
|
first = node.firstChild,
|
doc = node.ownerDocument,
|
isListItem = ( node.nodeName === 'LI' ),
|
needsFix, block;
|
|
// Do not merge LIs, unless it only contains a UL
|
if ( isListItem && ( !first || !/^[OU]L$/.test( first.nodeName ) ) ) {
|
return;
|
}
|
|
if ( prev && areAlike( prev, node ) ) {
|
if ( !isContainer( prev ) ) {
|
if ( isListItem ) {
|
block = createElement( doc, 'DIV' );
|
block.appendChild( empty( prev ) );
|
prev.appendChild( block );
|
} else {
|
return;
|
}
|
}
|
detach( node );
|
needsFix = !isContainer( node );
|
prev.appendChild( empty( node ) );
|
if ( needsFix ) {
|
fixContainer( prev, root );
|
}
|
if ( first ) {
|
mergeContainers( first, root );
|
}
|
} else if ( isListItem ) {
|
prev = createElement( doc, 'DIV' );
|
node.insertBefore( prev, first );
|
fixCursor( prev, root );
|
}
|
}
|
|
var getNodeBefore = function ( node, offset ) {
|
var children = node.childNodes;
|
while ( offset && node.nodeType === ELEMENT_NODE ) {
|
node = children[ offset - 1 ];
|
children = node.childNodes;
|
offset = children.length;
|
}
|
return node;
|
};
|
|
var getNodeAfter = function ( node, offset ) {
|
if ( node.nodeType === ELEMENT_NODE ) {
|
var children = node.childNodes;
|
if ( offset < children.length ) {
|
node = children[ offset ];
|
} else {
|
while ( node && !node.nextSibling ) {
|
node = node.parentNode;
|
}
|
if ( node ) { node = node.nextSibling; }
|
}
|
}
|
return node;
|
};
|
|
// ---
|
|
var insertNodeInRange = function ( range, node ) {
|
// Insert at start.
|
var startContainer = range.startContainer,
|
startOffset = range.startOffset,
|
endContainer = range.endContainer,
|
endOffset = range.endOffset,
|
parent, children, childCount, afterSplit;
|
|
// If part way through a text node, split it.
|
if ( startContainer.nodeType === TEXT_NODE ) {
|
parent = startContainer.parentNode;
|
children = parent.childNodes;
|
if ( startOffset === startContainer.length ) {
|
startOffset = indexOf.call( children, startContainer ) + 1;
|
if ( range.collapsed ) {
|
endContainer = parent;
|
endOffset = startOffset;
|
}
|
} else {
|
if ( startOffset ) {
|
afterSplit = startContainer.splitText( startOffset );
|
if ( endContainer === startContainer ) {
|
endOffset -= startOffset;
|
endContainer = afterSplit;
|
}
|
else if ( endContainer === parent ) {
|
endOffset += 1;
|
}
|
startContainer = afterSplit;
|
}
|
startOffset = indexOf.call( children, startContainer );
|
}
|
startContainer = parent;
|
} else {
|
children = startContainer.childNodes;
|
}
|
|
childCount = children.length;
|
|
if ( startOffset === childCount ) {
|
startContainer.appendChild( node );
|
} else {
|
startContainer.insertBefore( node, children[ startOffset ] );
|
}
|
|
if ( startContainer === endContainer ) {
|
endOffset += children.length - childCount;
|
}
|
|
range.setStart( startContainer, startOffset );
|
range.setEnd( endContainer, endOffset );
|
};
|
|
var extractContentsOfRange = function ( range, common, root ) {
|
var startContainer = range.startContainer,
|
startOffset = range.startOffset,
|
endContainer = range.endContainer,
|
endOffset = range.endOffset;
|
|
if ( !common ) {
|
common = range.commonAncestorContainer;
|
}
|
|
if ( common.nodeType === TEXT_NODE ) {
|
common = common.parentNode;
|
}
|
|
var endNode = split( endContainer, endOffset, common, root ),
|
startNode = split( startContainer, startOffset, common, root ),
|
frag = common.ownerDocument.createDocumentFragment(),
|
next, before, after, beforeText, afterText;
|
|
// End node will be null if at end of child nodes list.
|
while ( startNode !== endNode ) {
|
next = startNode.nextSibling;
|
frag.appendChild( startNode );
|
startNode = next;
|
}
|
|
startContainer = common;
|
startOffset = endNode ?
|
indexOf.call( common.childNodes, endNode ) :
|
common.childNodes.length;
|
|
// Merge text nodes if adjacent. IE10 in particular will not focus
|
// between two text nodes
|
after = common.childNodes[ startOffset ];
|
before = after && after.previousSibling;
|
if ( before &&
|
before.nodeType === TEXT_NODE &&
|
after.nodeType === TEXT_NODE ) {
|
startContainer = before;
|
startOffset = before.length;
|
beforeText = before.data;
|
afterText = after.data;
|
|
// If we now have two adjacent spaces, the second one needs to become
|
// a nbsp, otherwise the browser will swallow it due to HTML whitespace
|
// collapsing.
|
if ( beforeText.charAt( beforeText.length - 1 ) === ' ' &&
|
afterText.charAt( 0 ) === ' ' ) {
|
afterText = ' ' + afterText.slice( 1 ); // nbsp
|
}
|
before.appendData( afterText );
|
detach( after );
|
}
|
|
range.setStart( startContainer, startOffset );
|
range.collapse( true );
|
|
fixCursor( common, root );
|
|
return frag;
|
};
|
|
var deleteContentsOfRange = function ( range, root ) {
|
var startBlock = getStartBlockOfRange( range, root );
|
var endBlock = getEndBlockOfRange( range, root );
|
var needsMerge = ( startBlock !== endBlock );
|
var frag, child;
|
|
// Move boundaries up as much as possible without exiting block,
|
// to reduce need to split.
|
moveRangeBoundariesDownTree( range );
|
moveRangeBoundariesUpTree( range, startBlock, endBlock, root );
|
|
// Remove selected range
|
frag = extractContentsOfRange( range, null, root );
|
|
// Move boundaries back down tree as far as possible.
|
moveRangeBoundariesDownTree( range );
|
|
// If we split into two different blocks, merge the blocks.
|
if ( needsMerge ) {
|
// endBlock will have been split, so need to refetch
|
endBlock = getEndBlockOfRange( range, root );
|
if ( startBlock && endBlock && startBlock !== endBlock ) {
|
mergeWithBlock( startBlock, endBlock, range, root );
|
}
|
}
|
|
// Ensure block has necessary children
|
if ( startBlock ) {
|
fixCursor( startBlock, root );
|
}
|
|
// Ensure root has a block-level element in it.
|
child = root.firstChild;
|
if ( !child || child.nodeName === 'BR' ) {
|
fixCursor( root, root );
|
range.selectNodeContents( root.firstChild );
|
} else {
|
range.collapse( true );
|
}
|
return frag;
|
};
|
|
// ---
|
|
// Contents of range will be deleted.
|
// After method, range will be around inserted content
|
var insertTreeFragmentIntoRange = function ( range, frag, root ) {
|
var node, block, blockContentsAfterSplit, stopPoint, container, offset;
|
var replaceBlock, firstBlockInFrag, nodeAfterSplit, nodeBeforeSplit;
|
var tempRange;
|
|
// Fixup content: ensure no top-level inline, and add cursor fix elements.
|
fixContainer( frag, root );
|
node = frag;
|
while ( ( node = getNextBlock( node, root ) ) ) {
|
fixCursor( node, root );
|
}
|
|
// Delete any selected content.
|
if ( !range.collapsed ) {
|
deleteContentsOfRange( range, root );
|
}
|
|
// Move range down into text nodes.
|
moveRangeBoundariesDownTree( range );
|
range.collapse( false ); // collapse to end
|
|
// Where will we split up to? First blockquote parent, otherwise root.
|
stopPoint = getNearest( range.endContainer, root, 'BLOCKQUOTE' ) || root;
|
|
// Merge the contents of the first block in the frag with the focused block.
|
// If there are contents in the block after the focus point, collect this
|
// up to insert in the last block later. If the block is empty, replace
|
// it instead of merging.
|
block = getStartBlockOfRange( range, root );
|
firstBlockInFrag = getNextBlock( frag, frag );
|
replaceBlock = !!block && isEmptyBlock( block );
|
if ( block && firstBlockInFrag && !replaceBlock &&
|
// Don't merge table cells or PRE elements into block
|
!getNearest( firstBlockInFrag, frag, 'PRE' ) &&
|
!getNearest( firstBlockInFrag, frag, 'TABLE' ) ) {
|
moveRangeBoundariesUpTree( range, block, block, root );
|
range.collapse( true ); // collapse to start
|
container = range.endContainer;
|
offset = range.endOffset;
|
// Remove trailing <br> – we don't want this considered content to be
|
// inserted again later
|
cleanupBRs( block, root, false );
|
if ( isInline( container ) ) {
|
// Split up to block parent.
|
nodeAfterSplit = split(
|
container, offset, getPreviousBlock( container, root ), root );
|
container = nodeAfterSplit.parentNode;
|
offset = indexOf.call( container.childNodes, nodeAfterSplit );
|
}
|
if ( /*isBlock( container ) && */offset !== getLength( container ) ) {
|
// Collect any inline contents of the block after the range point
|
blockContentsAfterSplit =
|
root.ownerDocument.createDocumentFragment();
|
while ( ( node = container.childNodes[ offset ] ) ) {
|
blockContentsAfterSplit.appendChild( node );
|
}
|
}
|
// And merge the first block in.
|
mergeWithBlock( container, firstBlockInFrag, range, root );
|
|
// And where we will insert
|
offset = indexOf.call( container.parentNode.childNodes, container ) + 1;
|
container = container.parentNode;
|
range.setEnd( container, offset );
|
}
|
|
// Is there still any content in the fragment?
|
if ( getLength( frag ) ) {
|
if ( replaceBlock ) {
|
range.setEndBefore( block );
|
range.collapse( false );
|
detach( block );
|
}
|
moveRangeBoundariesUpTree( range, stopPoint, stopPoint, root );
|
// Now split after block up to blockquote (if a parent) or root
|
nodeAfterSplit = split(
|
range.endContainer, range.endOffset, stopPoint, root );
|
nodeBeforeSplit = nodeAfterSplit ?
|
nodeAfterSplit.previousSibling :
|
stopPoint.lastChild;
|
stopPoint.insertBefore( frag, nodeAfterSplit );
|
if ( nodeAfterSplit ) {
|
range.setEndBefore( nodeAfterSplit );
|
} else {
|
range.setEnd( stopPoint, getLength( stopPoint ) );
|
}
|
block = getEndBlockOfRange( range, root );
|
|
// Get a reference that won't be invalidated if we merge containers.
|
moveRangeBoundariesDownTree( range );
|
container = range.endContainer;
|
offset = range.endOffset;
|
|
// Merge inserted containers with edges of split
|
if ( nodeAfterSplit && isContainer( nodeAfterSplit ) ) {
|
mergeContainers( nodeAfterSplit, root );
|
}
|
nodeAfterSplit = nodeBeforeSplit && nodeBeforeSplit.nextSibling;
|
if ( nodeAfterSplit && isContainer( nodeAfterSplit ) ) {
|
mergeContainers( nodeAfterSplit, root );
|
}
|
range.setEnd( container, offset );
|
}
|
|
// Insert inline content saved from before.
|
if ( blockContentsAfterSplit ) {
|
tempRange = range.cloneRange();
|
mergeWithBlock( block, blockContentsAfterSplit, tempRange, root );
|
range.setEnd( tempRange.endContainer, tempRange.endOffset );
|
}
|
moveRangeBoundariesDownTree( range );
|
};
|
|
// ---
|
|
var isNodeContainedInRange = function ( range, node, partial ) {
|
var nodeRange = node.ownerDocument.createRange();
|
|
nodeRange.selectNode( node );
|
|
if ( partial ) {
|
// Node must not finish before range starts or start after range
|
// finishes.
|
var nodeEndBeforeStart = ( range.compareBoundaryPoints(
|
END_TO_START, nodeRange ) > -1 ),
|
nodeStartAfterEnd = ( range.compareBoundaryPoints(
|
START_TO_END, nodeRange ) < 1 );
|
return ( !nodeEndBeforeStart && !nodeStartAfterEnd );
|
}
|
else {
|
// Node must start after range starts and finish before range
|
// finishes
|
var nodeStartAfterStart = ( range.compareBoundaryPoints(
|
START_TO_START, nodeRange ) < 1 ),
|
nodeEndBeforeEnd = ( range.compareBoundaryPoints(
|
END_TO_END, nodeRange ) > -1 );
|
return ( nodeStartAfterStart && nodeEndBeforeEnd );
|
}
|
};
|
|
var moveRangeBoundariesDownTree = function ( range ) {
|
var startContainer = range.startContainer,
|
startOffset = range.startOffset,
|
endContainer = range.endContainer,
|
endOffset = range.endOffset,
|
maySkipBR = true,
|
child;
|
|
while ( startContainer.nodeType !== TEXT_NODE ) {
|
child = startContainer.childNodes[ startOffset ];
|
if ( !child || isLeaf( child ) ) {
|
break;
|
}
|
startContainer = child;
|
startOffset = 0;
|
}
|
if ( endOffset ) {
|
while ( endContainer.nodeType !== TEXT_NODE ) {
|
child = endContainer.childNodes[ endOffset - 1 ];
|
if ( !child || isLeaf( child ) ) {
|
if ( maySkipBR && child && child.nodeName === 'BR' ) {
|
endOffset -= 1;
|
maySkipBR = false;
|
continue;
|
}
|
break;
|
}
|
endContainer = child;
|
endOffset = getLength( endContainer );
|
}
|
} else {
|
while ( endContainer.nodeType !== TEXT_NODE ) {
|
child = endContainer.firstChild;
|
if ( !child || isLeaf( child ) ) {
|
break;
|
}
|
endContainer = child;
|
}
|
}
|
|
// If collapsed, this algorithm finds the nearest text node positions
|
// *outside* the range rather than inside, but also it flips which is
|
// assigned to which.
|
if ( range.collapsed ) {
|
range.setStart( endContainer, endOffset );
|
range.setEnd( startContainer, startOffset );
|
} else {
|
range.setStart( startContainer, startOffset );
|
range.setEnd( endContainer, endOffset );
|
}
|
};
|
|
var moveRangeBoundariesUpTree = function ( range, startMax, endMax, root ) {
|
var startContainer = range.startContainer;
|
var startOffset = range.startOffset;
|
var endContainer = range.endContainer;
|
var endOffset = range.endOffset;
|
var maySkipBR = true;
|
var parent;
|
|
if ( !startMax ) {
|
startMax = range.commonAncestorContainer;
|
}
|
if ( !endMax ) {
|
endMax = startMax;
|
}
|
|
while ( !startOffset &&
|
startContainer !== startMax &&
|
startContainer !== root ) {
|
parent = startContainer.parentNode;
|
startOffset = indexOf.call( parent.childNodes, startContainer );
|
startContainer = parent;
|
}
|
|
while ( true ) {
|
if ( maySkipBR &&
|
endContainer.nodeType !== TEXT_NODE &&
|
endContainer.childNodes[ endOffset ] &&
|
endContainer.childNodes[ endOffset ].nodeName === 'BR' ) {
|
endOffset += 1;
|
maySkipBR = false;
|
}
|
if ( endContainer === endMax ||
|
endContainer === root ||
|
endOffset !== getLength( endContainer ) ) {
|
break;
|
}
|
parent = endContainer.parentNode;
|
endOffset = indexOf.call( parent.childNodes, endContainer ) + 1;
|
endContainer = parent;
|
}
|
|
range.setStart( startContainer, startOffset );
|
range.setEnd( endContainer, endOffset );
|
};
|
|
// Returns the first block at least partially contained by the range,
|
// or null if no block is contained by the range.
|
var getStartBlockOfRange = function ( range, root ) {
|
var container = range.startContainer,
|
block;
|
|
// If inline, get the containing block.
|
if ( isInline( container ) ) {
|
block = getPreviousBlock( container, root );
|
} else if ( container !== root && isBlock( container ) ) {
|
block = container;
|
} else {
|
block = getNodeBefore( container, range.startOffset );
|
block = getNextBlock( block, root );
|
}
|
// Check the block actually intersects the range
|
return block && isNodeContainedInRange( range, block, true ) ? block : null;
|
};
|
|
// Returns the last block at least partially contained by the range,
|
// or null if no block is contained by the range.
|
var getEndBlockOfRange = function ( range, root ) {
|
var container = range.endContainer,
|
block, child;
|
|
// If inline, get the containing block.
|
if ( isInline( container ) ) {
|
block = getPreviousBlock( container, root );
|
} else if ( container !== root && isBlock( container ) ) {
|
block = container;
|
} else {
|
block = getNodeAfter( container, range.endOffset );
|
if ( !block || !isOrContains( root, block ) ) {
|
block = root;
|
while ( child = block.lastChild ) {
|
block = child;
|
}
|
}
|
block = getPreviousBlock( block, root );
|
}
|
// Check the block actually intersects the range
|
return block && isNodeContainedInRange( range, block, true ) ? block : null;
|
};
|
|
var contentWalker = new TreeWalker( null,
|
SHOW_TEXT|SHOW_ELEMENT,
|
function ( node ) {
|
return node.nodeType === TEXT_NODE ?
|
notWS.test( node.data ) :
|
node.nodeName === 'IMG';
|
}
|
);
|
|
var rangeDoesStartAtBlockBoundary = function ( range, root ) {
|
var startContainer = range.startContainer;
|
var startOffset = range.startOffset;
|
var nodeAfterCursor;
|
|
// If in the middle or end of a text node, we're not at the boundary.
|
contentWalker.root = null;
|
if ( startContainer.nodeType === TEXT_NODE ) {
|
if ( startOffset ) {
|
return false;
|
}
|
nodeAfterCursor = startContainer;
|
} else {
|
nodeAfterCursor = getNodeAfter( startContainer, startOffset );
|
if ( nodeAfterCursor && !isOrContains( root, nodeAfterCursor ) ) {
|
nodeAfterCursor = null;
|
}
|
// The cursor was right at the end of the document
|
if ( !nodeAfterCursor ) {
|
nodeAfterCursor = getNodeBefore( startContainer, startOffset );
|
if ( nodeAfterCursor.nodeType === TEXT_NODE &&
|
nodeAfterCursor.length ) {
|
return false;
|
}
|
}
|
}
|
|
// Otherwise, look for any previous content in the same block.
|
contentWalker.currentNode = nodeAfterCursor;
|
contentWalker.root = getStartBlockOfRange( range, root );
|
|
return !contentWalker.previousNode();
|
};
|
|
var rangeDoesEndAtBlockBoundary = function ( range, root ) {
|
var endContainer = range.endContainer,
|
endOffset = range.endOffset,
|
length;
|
|
// If in a text node with content, and not at the end, we're not
|
// at the boundary
|
contentWalker.root = null;
|
if ( endContainer.nodeType === TEXT_NODE ) {
|
length = endContainer.data.length;
|
if ( length && endOffset < length ) {
|
return false;
|
}
|
contentWalker.currentNode = endContainer;
|
} else {
|
contentWalker.currentNode = getNodeBefore( endContainer, endOffset );
|
}
|
|
// Otherwise, look for any further content in the same block.
|
contentWalker.root = getEndBlockOfRange( range, root );
|
|
return !contentWalker.nextNode();
|
};
|
|
var expandRangeToBlockBoundaries = function ( range, root ) {
|
var start = getStartBlockOfRange( range, root ),
|
end = getEndBlockOfRange( range, root ),
|
parent;
|
|
if ( start && end ) {
|
parent = start.parentNode;
|
range.setStart( parent, indexOf.call( parent.childNodes, start ) );
|
parent = end.parentNode;
|
range.setEnd( parent, indexOf.call( parent.childNodes, end ) + 1 );
|
}
|
};
|
|
var keys = {
|
8: 'backspace',
|
9: 'tab',
|
13: 'enter',
|
32: 'space',
|
33: 'pageup',
|
34: 'pagedown',
|
37: 'left',
|
39: 'right',
|
46: 'delete',
|
219: '[',
|
221: ']'
|
};
|
|
// Ref: http://unixpapa.com/js/key.html
|
var onKey = function ( event ) {
|
var code = event.keyCode,
|
key = keys[ code ],
|
modifiers = '',
|
range = this.getSelection();
|
|
if ( event.defaultPrevented ) {
|
return;
|
}
|
|
if ( !key ) {
|
key = String.fromCharCode( code ).toLowerCase();
|
// Only reliable for letters and numbers
|
if ( !/^[A-Za-z0-9]$/.test( key ) ) {
|
key = '';
|
}
|
}
|
|
// On keypress, delete and '.' both have event.keyCode 46
|
// Must check event.which to differentiate.
|
if ( isPresto && event.which === 46 ) {
|
key = '.';
|
}
|
|
// Function keys
|
if ( 111 < code && code < 124 ) {
|
key = 'f' + ( code - 111 );
|
}
|
|
// We need to apply the backspace/delete handlers regardless of
|
// control key modifiers.
|
if ( key !== 'backspace' && key !== 'delete' ) {
|
if ( event.altKey ) { modifiers += 'alt-'; }
|
if ( event.ctrlKey ) { modifiers += 'ctrl-'; }
|
if ( event.metaKey ) { modifiers += 'meta-'; }
|
}
|
// However, on Windows, shift-delete is apparently "cut" (WTF right?), so
|
// we want to let the browser handle shift-delete.
|
if ( event.shiftKey ) { modifiers += 'shift-'; }
|
|
key = modifiers + key;
|
|
if ( this._keyHandlers[ key ] ) {
|
this._keyHandlers[ key ]( this, event, range );
|
// !event.isComposing stops us from blatting Kana-Kanji conversion in Safari
|
} else if ( !range.collapsed && !event.isComposing &&
|
!event.ctrlKey && !event.metaKey &&
|
(isIE ? key : event.key || key).length === 1) {
|
// Record undo checkpoint.
|
this.saveUndoState( range );
|
// Delete the selection
|
deleteContentsOfRange( range, this._root );
|
this._ensureBottomLine();
|
this.setSelection( range );
|
this._updatePath( range, true );
|
}
|
};
|
|
var mapKeyTo = function ( method ) {
|
return function ( self, event ) {
|
event.preventDefault();
|
self[ method ]();
|
};
|
};
|
|
var mapKeyToFormat = function ( tag, remove ) {
|
remove = remove || null;
|
return function ( self, event ) {
|
event.preventDefault();
|
var range = self.getSelection();
|
if ( self.hasFormat( tag, null, range ) ) {
|
self.changeFormat( null, { tag: tag }, range );
|
} else {
|
self.changeFormat( { tag: tag }, remove, range );
|
}
|
};
|
};
|
|
// If you delete the content inside a span with a font styling, Webkit will
|
// replace it with a <font> tag (!). If you delete all the text inside a
|
// link in Opera, it won't delete the link. Let's make things consistent. If
|
// you delete all text inside an inline tag, remove the inline tag.
|
var afterDelete = function ( self, range ) {
|
try {
|
if ( !range ) { range = self.getSelection(); }
|
var node = range.startContainer,
|
parent;
|
// Climb the tree from the focus point while we are inside an empty
|
// inline element
|
if ( node.nodeType === TEXT_NODE ) {
|
node = node.parentNode;
|
}
|
parent = node;
|
while ( isInline( parent ) &&
|
( !parent.textContent || parent.textContent === ZWS ) ) {
|
node = parent;
|
parent = node.parentNode;
|
}
|
// If focused in empty inline element
|
if ( node !== parent ) {
|
// Move focus to just before empty inline(s)
|
range.setStart( parent,
|
indexOf.call( parent.childNodes, node ) );
|
range.collapse( true );
|
// Remove empty inline(s)
|
parent.removeChild( node );
|
// Fix cursor in block
|
if ( !isBlock( parent ) ) {
|
parent = getPreviousBlock( parent, self._root );
|
}
|
fixCursor( parent, self._root );
|
// Move cursor into text node
|
moveRangeBoundariesDownTree( range );
|
}
|
// If you delete the last character in the sole <div> in Chrome,
|
// it removes the div and replaces it with just a <br> inside the
|
// root. Detach the <br>; the _ensureBottomLine call will insert a new
|
// block.
|
if ( node === self._root &&
|
( node = node.firstChild ) && node.nodeName === 'BR' ) {
|
detach( node );
|
}
|
self._ensureBottomLine();
|
self.setSelection( range );
|
self._updatePath( range, true );
|
} catch ( error ) {
|
self.didError( error );
|
}
|
};
|
|
var keyHandlers = {
|
enter: function ( self, event, range ) {
|
var root = self._root;
|
var block, parent, node, offset, nodeAfterSplit;
|
|
// We handle this ourselves
|
event.preventDefault();
|
|
// Save undo checkpoint and add any links in the preceding section.
|
// Remove any zws so we don't think there's content in an empty
|
// block.
|
self._recordUndoState( range );
|
addLinks( range.startContainer, root, self );
|
self._removeZWS();
|
self._getRangeAndRemoveBookmark( range );
|
|
// Selected text is overwritten, therefore delete the contents
|
// to collapse selection.
|
if ( !range.collapsed ) {
|
deleteContentsOfRange( range, root );
|
}
|
|
block = getStartBlockOfRange( range, root );
|
|
// Inside a PRE, insert literal newline, unless on blank line.
|
if ( block && ( parent = getNearest( block, root, 'PRE' ) ) ) {
|
moveRangeBoundariesDownTree( range );
|
node = range.startContainer;
|
offset = range.startOffset;
|
if ( node.nodeType !== TEXT_NODE ) {
|
node = self._doc.createTextNode( '' );
|
parent.insertBefore( node, parent.firstChild );
|
}
|
// If blank line: split and insert default block
|
if ( !event.shiftKey &&
|
( node.data.charAt( offset - 1 ) === '\n' ||
|
rangeDoesStartAtBlockBoundary( range, root ) ) &&
|
( node.data.charAt( offset ) === '\n' ||
|
rangeDoesEndAtBlockBoundary( range, root ) ) ) {
|
node.deleteData( offset && offset - 1, offset ? 2 : 1 );
|
nodeAfterSplit =
|
split( node, offset && offset - 1, root, root );
|
node = nodeAfterSplit.previousSibling;
|
if ( !node.textContent ) {
|
detach( node );
|
}
|
node = self.createDefaultBlock();
|
nodeAfterSplit.parentNode.insertBefore( node, nodeAfterSplit );
|
if ( !nodeAfterSplit.textContent ) {
|
detach( nodeAfterSplit );
|
}
|
range.setStart( node, 0 );
|
} else {
|
node.insertData( offset, '\n' );
|
fixCursor( parent, root );
|
// Firefox bug: if you set the selection in the text node after
|
// the new line, it draws the cursor before the line break still
|
// but if you set the selection to the equivalent position
|
// in the parent, it works.
|
if ( node.length === offset + 1 ) {
|
range.setStartAfter( node );
|
} else {
|
range.setStart( node, offset + 1 );
|
}
|
}
|
range.collapse( true );
|
self.setSelection( range );
|
self._updatePath( range, true );
|
self._docWasChanged();
|
return;
|
}
|
|
// If this is a malformed bit of document or in a table;
|
// just play it safe and insert a <br>.
|
if ( !block || event.shiftKey || /^T[HD]$/.test( block.nodeName ) ) {
|
// If inside an <a>, move focus out
|
parent = getNearest( range.endContainer, root, 'A' );
|
if ( parent ) {
|
parent = parent.parentNode;
|
moveRangeBoundariesUpTree( range, parent, parent, root );
|
range.collapse( false );
|
}
|
insertNodeInRange( range, self.createElement( 'BR' ) );
|
range.collapse( false );
|
self.setSelection( range );
|
self._updatePath( range, true );
|
return;
|
}
|
|
// If in a list, we'll split the LI instead.
|
if ( parent = getNearest( block, root, 'LI' ) ) {
|
block = parent;
|
}
|
|
if ( isEmptyBlock( block ) ) {
|
// Break list
|
if ( getNearest( block, root, 'UL' ) ||
|
getNearest( block, root, 'OL' ) ) {
|
return self.decreaseListLevel( range );
|
}
|
// Break blockquote
|
else if ( getNearest( block, root, 'BLOCKQUOTE' ) ) {
|
return self.modifyBlocks( removeBlockQuote, range );
|
}
|
}
|
|
// Otherwise, split at cursor point.
|
nodeAfterSplit = splitBlock( self, block,
|
range.startContainer, range.startOffset );
|
|
// Clean up any empty inlines if we hit enter at the beginning of the
|
// block
|
removeZWS( block );
|
removeEmptyInlines( block );
|
fixCursor( block, root );
|
|
// Focus cursor
|
// If there's a <b>/<i> etc. at the beginning of the split
|
// make sure we focus inside it.
|
while ( nodeAfterSplit.nodeType === ELEMENT_NODE ) {
|
var child = nodeAfterSplit.firstChild,
|
next;
|
|
// Don't continue links over a block break; unlikely to be the
|
// desired outcome.
|
if ( nodeAfterSplit.nodeName === 'A' &&
|
( !nodeAfterSplit.textContent ||
|
nodeAfterSplit.textContent === ZWS ) ) {
|
child = self._doc.createTextNode( '' );
|
replaceWith( nodeAfterSplit, child );
|
nodeAfterSplit = child;
|
break;
|
}
|
|
while ( child && child.nodeType === TEXT_NODE && !child.data ) {
|
next = child.nextSibling;
|
if ( !next || next.nodeName === 'BR' ) {
|
break;
|
}
|
detach( child );
|
child = next;
|
}
|
|
// 'BR's essentially don't count; they're a browser hack.
|
// If you try to select the contents of a 'BR', FF will not let
|
// you type anything!
|
if ( !child || child.nodeName === 'BR' ||
|
( child.nodeType === TEXT_NODE && !isPresto ) ) {
|
break;
|
}
|
nodeAfterSplit = child;
|
}
|
range = self.createRange( nodeAfterSplit, 0 );
|
self.setSelection( range );
|
self._updatePath( range, true );
|
},
|
|
'shift-enter': function ( self, event, range ) {
|
return self._keyHandlers.enter( self, event, range );
|
},
|
|
backspace: function ( self, event, range ) {
|
var root = self._root;
|
self._removeZWS();
|
// Record undo checkpoint.
|
self.saveUndoState( range );
|
// If not collapsed, delete contents
|
if ( !range.collapsed ) {
|
event.preventDefault();
|
deleteContentsOfRange( range, root );
|
afterDelete( self, range );
|
}
|
// If at beginning of block, merge with previous
|
else if ( rangeDoesStartAtBlockBoundary( range, root ) ) {
|
event.preventDefault();
|
var current = getStartBlockOfRange( range, root );
|
var previous;
|
if ( !current ) {
|
return;
|
}
|
// In case inline data has somehow got between blocks.
|
fixContainer( current.parentNode, root );
|
// Now get previous block
|
previous = getPreviousBlock( current, root );
|
// Must not be at the very beginning of the text area.
|
if ( previous ) {
|
// If not editable, just delete whole block.
|
if ( !previous.isContentEditable ) {
|
detach( previous );
|
return;
|
}
|
// Otherwise merge.
|
mergeWithBlock( previous, current, range, root );
|
// If deleted line between containers, merge newly adjacent
|
// containers.
|
current = previous.parentNode;
|
while ( current !== root && !current.nextSibling ) {
|
current = current.parentNode;
|
}
|
if ( current !== root && ( current = current.nextSibling ) ) {
|
mergeContainers( current, root );
|
}
|
self.setSelection( range );
|
}
|
// If at very beginning of text area, allow backspace
|
// to break lists/blockquote.
|
else if ( current ) {
|
// Break list
|
if ( getNearest( current, root, 'UL' ) ||
|
getNearest( current, root, 'OL' ) ) {
|
return self.decreaseListLevel( range );
|
}
|
// Break blockquote
|
else if ( getNearest( current, root, 'BLOCKQUOTE' ) ) {
|
return self.modifyBlocks( decreaseBlockQuoteLevel, range );
|
}
|
self.setSelection( range );
|
self._updatePath( range, true );
|
}
|
}
|
// Otherwise, leave to browser but check afterwards whether it has
|
// left behind an empty inline tag.
|
else {
|
self.setSelection( range );
|
setTimeout( function () { afterDelete( self ); }, 0 );
|
}
|
},
|
'delete': function ( self, event, range ) {
|
var root = self._root;
|
var current, next, originalRange,
|
cursorContainer, cursorOffset, nodeAfterCursor;
|
self._removeZWS();
|
// Record undo checkpoint.
|
self.saveUndoState( range );
|
// If not collapsed, delete contents
|
if ( !range.collapsed ) {
|
event.preventDefault();
|
deleteContentsOfRange( range, root );
|
afterDelete( self, range );
|
}
|
// If at end of block, merge next into this block
|
else if ( rangeDoesEndAtBlockBoundary( range, root ) ) {
|
event.preventDefault();
|
current = getStartBlockOfRange( range, root );
|
if ( !current ) {
|
return;
|
}
|
// In case inline data has somehow got between blocks.
|
fixContainer( current.parentNode, root );
|
// Now get next block
|
next = getNextBlock( current, root );
|
// Must not be at the very end of the text area.
|
if ( next ) {
|
// If not editable, just delete whole block.
|
if ( !next.isContentEditable ) {
|
detach( next );
|
return;
|
}
|
// Otherwise merge.
|
mergeWithBlock( current, next, range, root );
|
// If deleted line between containers, merge newly adjacent
|
// containers.
|
next = current.parentNode;
|
while ( next !== root && !next.nextSibling ) {
|
next = next.parentNode;
|
}
|
if ( next !== root && ( next = next.nextSibling ) ) {
|
mergeContainers( next, root );
|
}
|
self.setSelection( range );
|
self._updatePath( range, true );
|
}
|
}
|
// Otherwise, leave to browser but check afterwards whether it has
|
// left behind an empty inline tag.
|
else {
|
// But first check if the cursor is just before an IMG tag. If so,
|
// delete it ourselves, because the browser won't if it is not
|
// inline.
|
originalRange = range.cloneRange();
|
moveRangeBoundariesUpTree( range, root, root, root );
|
cursorContainer = range.endContainer;
|
cursorOffset = range.endOffset;
|
if ( cursorContainer.nodeType === ELEMENT_NODE ) {
|
nodeAfterCursor = cursorContainer.childNodes[ cursorOffset ];
|
if ( nodeAfterCursor && nodeAfterCursor.nodeName === 'IMG' ) {
|
event.preventDefault();
|
detach( nodeAfterCursor );
|
moveRangeBoundariesDownTree( range );
|
afterDelete( self, range );
|
return;
|
}
|
}
|
self.setSelection( originalRange );
|
setTimeout( function () { afterDelete( self ); }, 0 );
|
}
|
},
|
tab: function ( self, event, range ) {
|
var root = self._root;
|
var node, parent;
|
self._removeZWS();
|
// If no selection and at start of block
|
if ( range.collapsed && rangeDoesStartAtBlockBoundary( range, root ) ) {
|
node = getStartBlockOfRange( range, root );
|
// Iterate through the block's parents
|
while ( ( parent = node.parentNode ) ) {
|
// If we find a UL or OL (so are in a list, node must be an LI)
|
if ( parent.nodeName === 'UL' || parent.nodeName === 'OL' ) {
|
// Then increase the list level
|
event.preventDefault();
|
self.increaseListLevel( range );
|
break;
|
}
|
node = parent;
|
}
|
}
|
},
|
'shift-tab': function ( self, event, range ) {
|
var root = self._root;
|
var node;
|
self._removeZWS();
|
// If no selection and at start of block
|
if ( range.collapsed && rangeDoesStartAtBlockBoundary( range, root ) ) {
|
// Break list
|
node = range.startContainer;
|
if ( getNearest( node, root, 'UL' ) ||
|
getNearest( node, root, 'OL' ) ) {
|
event.preventDefault();
|
self.decreaseListLevel( range );
|
}
|
}
|
},
|
space: function ( self, _, range ) {
|
var node, parent;
|
var root = self._root;
|
self._recordUndoState( range );
|
addLinks( range.startContainer, root, self );
|
self._getRangeAndRemoveBookmark( range );
|
|
// If the cursor is at the end of a link (<a>foo|</a>) then move it
|
// outside of the link (<a>foo</a>|) so that the space is not part of
|
// the link text.
|
node = range.endContainer;
|
if ( range.collapsed && range.endOffset === getLength( node ) ) {
|
do {
|
if ( node.nodeName === 'A' ) {
|
range.setStartAfter( node );
|
break;
|
}
|
} while ( !node.nextSibling &&
|
( node = node.parentNode ) && node !== root );
|
}
|
// Delete the selection if not collapsed
|
if ( !range.collapsed ) {
|
deleteContentsOfRange( range, root );
|
self._ensureBottomLine();
|
self.setSelection( range );
|
self._updatePath( range, true );
|
}
|
|
self.setSelection( range );
|
},
|
left: function ( self ) {
|
self._removeZWS();
|
},
|
right: function ( self ) {
|
self._removeZWS();
|
}
|
};
|
|
// Firefox pre v29 incorrectly handles Cmd-left/Cmd-right on Mac:
|
// it goes back/forward in history! Override to do the right
|
// thing.
|
// https://bugzilla.mozilla.org/show_bug.cgi?id=289384
|
if ( isMac && isGecko ) {
|
keyHandlers[ 'meta-left' ] = function ( self, event ) {
|
event.preventDefault();
|
var sel = getWindowSelection( self );
|
if ( sel && sel.modify ) {
|
sel.modify( 'move', 'backward', 'lineboundary' );
|
}
|
};
|
keyHandlers[ 'meta-right' ] = function ( self, event ) {
|
event.preventDefault();
|
var sel = getWindowSelection( self );
|
if ( sel && sel.modify ) {
|
sel.modify( 'move', 'forward', 'lineboundary' );
|
}
|
};
|
}
|
|
// System standard for page up/down on Mac is to just scroll, not move the
|
// cursor. On Linux/Windows, it should move the cursor, but some browsers don't
|
// implement this natively. Override to support it.
|
if ( !isMac ) {
|
keyHandlers.pageup = function ( self ) {
|
self.moveCursorToStart();
|
};
|
keyHandlers.pagedown = function ( self ) {
|
self.moveCursorToEnd();
|
};
|
}
|
|
keyHandlers[ ctrlKey + 'b' ] = mapKeyToFormat( 'B' );
|
keyHandlers[ ctrlKey + 'i' ] = mapKeyToFormat( 'I' );
|
keyHandlers[ ctrlKey + 'u' ] = mapKeyToFormat( 'U' );
|
keyHandlers[ ctrlKey + 'shift-7' ] = mapKeyToFormat( 'S' );
|
keyHandlers[ ctrlKey + 'shift-5' ] = mapKeyToFormat( 'SUB', { tag: 'SUP' } );
|
keyHandlers[ ctrlKey + 'shift-6' ] = mapKeyToFormat( 'SUP', { tag: 'SUB' } );
|
keyHandlers[ ctrlKey + 'shift-8' ] = mapKeyTo( 'makeUnorderedList' );
|
keyHandlers[ ctrlKey + 'shift-9' ] = mapKeyTo( 'makeOrderedList' );
|
keyHandlers[ ctrlKey + '[' ] = mapKeyTo( 'decreaseQuoteLevel' );
|
keyHandlers[ ctrlKey + ']' ] = mapKeyTo( 'increaseQuoteLevel' );
|
keyHandlers[ ctrlKey + 'd' ] = mapKeyTo( 'toggleCode' );
|
keyHandlers[ ctrlKey + 'y' ] = mapKeyTo( 'redo' );
|
keyHandlers[ ctrlKey + 'z' ] = mapKeyTo( 'undo' );
|
keyHandlers[ ctrlKey + 'shift-z' ] = mapKeyTo( 'redo' );
|
|
var fontSizes = {
|
1: 10,
|
2: 13,
|
3: 16,
|
4: 18,
|
5: 24,
|
6: 32,
|
7: 48
|
};
|
|
var styleToSemantic = {
|
backgroundColor: {
|
regexp: notWS,
|
replace: function ( doc, classNames, colour ) {
|
return createElement( doc, 'SPAN', {
|
'class': classNames.highlight,
|
style: 'background-color:' + colour
|
});
|
}
|
},
|
color: {
|
regexp: notWS,
|
replace: function ( doc, classNames, colour ) {
|
return createElement( doc, 'SPAN', {
|
'class': classNames.colour,
|
style: 'color:' + colour
|
});
|
}
|
},
|
fontWeight: {
|
regexp: /^bold|^700/i,
|
replace: function ( doc ) {
|
return createElement( doc, 'B' );
|
}
|
},
|
fontStyle: {
|
regexp: /^italic/i,
|
replace: function ( doc ) {
|
return createElement( doc, 'I' );
|
}
|
},
|
fontFamily: {
|
regexp: notWS,
|
replace: function ( doc, classNames, family ) {
|
return createElement( doc, 'SPAN', {
|
'class': classNames.fontFamily,
|
style: 'font-family:' + family
|
});
|
}
|
},
|
fontSize: {
|
regexp: notWS,
|
replace: function ( doc, classNames, size ) {
|
return createElement( doc, 'SPAN', {
|
'class': classNames.fontSize,
|
style: 'font-size:' + size
|
});
|
}
|
},
|
textDecoration: {
|
regexp: /^underline/i,
|
replace: function ( doc ) {
|
return createElement( doc, 'U' );
|
}
|
}
|
};
|
|
var replaceWithTag = function ( tag ) {
|
return function ( node, parent ) {
|
var el = createElement( node.ownerDocument, tag );
|
parent.replaceChild( el, node );
|
el.appendChild( empty( node ) );
|
return el;
|
};
|
};
|
|
var replaceStyles = function ( node, parent, config ) {
|
var style = node.style;
|
var doc = node.ownerDocument;
|
var attr, converter, css, newTreeBottom, newTreeTop, el;
|
|
for ( attr in styleToSemantic ) {
|
converter = styleToSemantic[ attr ];
|
css = style[ attr ];
|
if ( css && converter.regexp.test( css ) ) {
|
el = converter.replace( doc, config.classNames, css );
|
if ( !newTreeTop ) {
|
newTreeTop = el;
|
}
|
if ( newTreeBottom ) {
|
newTreeBottom.appendChild( el );
|
}
|
newTreeBottom = el;
|
node.style[ attr ] = '';
|
}
|
}
|
|
if ( newTreeTop ) {
|
newTreeBottom.appendChild( empty( node ) );
|
if ( node.nodeName === 'SPAN' ) {
|
parent.replaceChild( newTreeTop, node );
|
} else {
|
node.appendChild( newTreeTop );
|
}
|
}
|
|
return newTreeBottom || node;
|
};
|
|
var stylesRewriters = {
|
P: replaceStyles,
|
SPAN: replaceStyles,
|
STRONG: replaceWithTag( 'B' ),
|
EM: replaceWithTag( 'I' ),
|
INS: replaceWithTag( 'U' ),
|
STRIKE: replaceWithTag( 'S' ),
|
FONT: function ( node, parent, config ) {
|
var face = node.face;
|
var size = node.size;
|
var colour = node.color;
|
var doc = node.ownerDocument;
|
var classNames = config.classNames;
|
var fontSpan, sizeSpan, colourSpan;
|
var newTreeBottom, newTreeTop;
|
if ( face ) {
|
fontSpan = createElement( doc, 'SPAN', {
|
'class': classNames.fontFamily,
|
style: 'font-family:' + face
|
});
|
newTreeTop = fontSpan;
|
newTreeBottom = fontSpan;
|
}
|
if ( size ) {
|
sizeSpan = createElement( doc, 'SPAN', {
|
'class': classNames.fontSize,
|
style: 'font-size:' + fontSizes[ size ] + 'px'
|
});
|
if ( !newTreeTop ) {
|
newTreeTop = sizeSpan;
|
}
|
if ( newTreeBottom ) {
|
newTreeBottom.appendChild( sizeSpan );
|
}
|
newTreeBottom = sizeSpan;
|
}
|
if ( colour && /^#?([\dA-F]{3}){1,2}$/i.test( colour ) ) {
|
if ( colour.charAt( 0 ) !== '#' ) {
|
colour = '#' + colour;
|
}
|
colourSpan = createElement( doc, 'SPAN', {
|
'class': classNames.colour,
|
style: 'color:' + colour
|
});
|
if ( !newTreeTop ) {
|
newTreeTop = colourSpan;
|
}
|
if ( newTreeBottom ) {
|
newTreeBottom.appendChild( colourSpan );
|
}
|
newTreeBottom = colourSpan;
|
}
|
if ( !newTreeTop ) {
|
newTreeTop = newTreeBottom = createElement( doc, 'SPAN' );
|
}
|
parent.replaceChild( newTreeTop, node );
|
newTreeBottom.appendChild( empty( node ) );
|
return newTreeBottom;
|
},
|
TT: function ( node, parent, config ) {
|
var el = createElement( node.ownerDocument, 'SPAN', {
|
'class': config.classNames.fontFamily,
|
style: 'font-family:menlo,consolas,"courier new",monospace'
|
});
|
parent.replaceChild( el, node );
|
el.appendChild( empty( node ) );
|
return el;
|
}
|
};
|
|
var allowedBlock = /^(?:A(?:DDRESS|RTICLE|SIDE|UDIO)|BLOCKQUOTE|CAPTION|D(?:[DLT]|IV)|F(?:IGURE|IGCAPTION|OOTER)|H[1-6]|HEADER|L(?:ABEL|EGEND|I)|O(?:L|UTPUT)|P(?:RE)?|SECTION|T(?:ABLE|BODY|D|FOOT|H|HEAD|R)|COL(?:GROUP)?|UL)$/;
|
|
var blacklist = /^(?:HEAD|META|STYLE)/;
|
|
var walker = new TreeWalker( null, SHOW_TEXT|SHOW_ELEMENT );
|
|
/*
|
Two purposes:
|
|
1. Remove nodes we don't want, such as weird <o:p> tags, comment nodes
|
and whitespace nodes.
|
2. Convert inline tags into our preferred format.
|
*/
|
var cleanTree = function cleanTree ( node, config, preserveWS ) {
|
var children = node.childNodes,
|
nonInlineParent, i, l, child, nodeName, nodeType, rewriter, childLength,
|
startsWithWS, endsWithWS, data, sibling;
|
|
nonInlineParent = node;
|
while ( isInline( nonInlineParent ) ) {
|
nonInlineParent = nonInlineParent.parentNode;
|
}
|
walker.root = nonInlineParent;
|
|
for ( i = 0, l = children.length; i < l; i += 1 ) {
|
child = children[i];
|
nodeName = child.nodeName;
|
nodeType = child.nodeType;
|
rewriter = stylesRewriters[ nodeName ];
|
if ( nodeType === ELEMENT_NODE ) {
|
childLength = child.childNodes.length;
|
if ( rewriter ) {
|
child = rewriter( child, node, config );
|
} else if ( blacklist.test( nodeName ) ) {
|
node.removeChild( child );
|
i -= 1;
|
l -= 1;
|
continue;
|
} else if ( !allowedBlock.test( nodeName ) && !isInline( child ) ) {
|
i -= 1;
|
l += childLength - 1;
|
node.replaceChild( empty( child ), child );
|
continue;
|
}
|
if ( childLength ) {
|
cleanTree( child, config,
|
preserveWS || ( nodeName === 'PRE' ) );
|
}
|
} else {
|
if ( nodeType === TEXT_NODE ) {
|
data = child.data;
|
startsWithWS = !notWS.test( data.charAt( 0 ) );
|
endsWithWS = !notWS.test( data.charAt( data.length - 1 ) );
|
if ( preserveWS || ( !startsWithWS && !endsWithWS ) ) {
|
continue;
|
}
|
// Iterate through the nodes; if we hit some other content
|
// before the start of a new block we don't trim
|
if ( startsWithWS ) {
|
walker.currentNode = child;
|
while ( sibling = walker.previousPONode() ) {
|
nodeName = sibling.nodeName;
|
if ( nodeName === 'IMG' ||
|
( nodeName === '#text' &&
|
notWS.test( sibling.data ) ) ) {
|
break;
|
}
|
if ( !isInline( sibling ) ) {
|
sibling = null;
|
break;
|
}
|
}
|
data = data.replace( /^[ \t\r\n]+/g, sibling ? ' ' : '' );
|
}
|
if ( endsWithWS ) {
|
walker.currentNode = child;
|
while ( sibling = walker.nextNode() ) {
|
if ( nodeName === 'IMG' ||
|
( nodeName === '#text' &&
|
notWS.test( sibling.data ) ) ) {
|
break;
|
}
|
if ( !isInline( sibling ) ) {
|
sibling = null;
|
break;
|
}
|
}
|
data = data.replace( /[ \t\r\n]+$/g, sibling ? ' ' : '' );
|
}
|
if ( data ) {
|
child.data = data;
|
continue;
|
}
|
}
|
node.removeChild( child );
|
i -= 1;
|
l -= 1;
|
}
|
}
|
return node;
|
};
|
|
// ---
|
|
var removeEmptyInlines = function removeEmptyInlines ( node ) {
|
var children = node.childNodes,
|
l = children.length,
|
child;
|
while ( l-- ) {
|
child = children[l];
|
if ( child.nodeType === ELEMENT_NODE && !isLeaf( child ) ) {
|
removeEmptyInlines( child );
|
if ( isInline( child ) && !child.firstChild ) {
|
node.removeChild( child );
|
}
|
} else if ( child.nodeType === TEXT_NODE && !child.data ) {
|
node.removeChild( child );
|
}
|
}
|
};
|
|
// ---
|
|
var notWSTextNode = function ( node ) {
|
return node.nodeType === ELEMENT_NODE ?
|
node.nodeName === 'BR' :
|
notWS.test( node.data );
|
};
|
var isLineBreak = function ( br, isLBIfEmptyBlock ) {
|
var block = br.parentNode;
|
var walker;
|
while ( isInline( block ) ) {
|
block = block.parentNode;
|
}
|
walker = new TreeWalker(
|
block, SHOW_ELEMENT|SHOW_TEXT, notWSTextNode );
|
walker.currentNode = br;
|
return !!walker.nextNode() ||
|
( isLBIfEmptyBlock && !walker.previousNode() );
|
};
|
|
// <br> elements are treated specially, and differently depending on the
|
// browser, when in rich text editor mode. When adding HTML from external
|
// sources, we must remove them, replacing the ones that actually affect
|
// line breaks by wrapping the inline text in a <div>. Browsers that want <br>
|
// elements at the end of each block will then have them added back in a later
|
// fixCursor method call.
|
var cleanupBRs = function ( node, root, keepForBlankLine ) {
|
var brs = node.querySelectorAll( 'BR' );
|
var brBreaksLine = [];
|
var l = brs.length;
|
var i, br, parent;
|
|
// Must calculate whether the <br> breaks a line first, because if we
|
// have two <br>s next to each other, after the first one is converted
|
// to a block split, the second will be at the end of a block and
|
// therefore seem to not be a line break. But in its original context it
|
// was, so we should also convert it to a block split.
|
for ( i = 0; i < l; i += 1 ) {
|
brBreaksLine[i] = isLineBreak( brs[i], keepForBlankLine );
|
}
|
while ( l-- ) {
|
br = brs[l];
|
// Cleanup may have removed it
|
parent = br.parentNode;
|
if ( !parent ) { continue; }
|
// If it doesn't break a line, just remove it; it's not doing
|
// anything useful. We'll add it back later if required by the
|
// browser. If it breaks a line, wrap the content in div tags
|
// and replace the brs.
|
if ( !brBreaksLine[l] ) {
|
detach( br );
|
} else if ( !isInline( parent ) ) {
|
fixContainer( parent, root );
|
}
|
}
|
};
|
|
// The (non-standard but supported enough) innerText property is based on the
|
// render tree in Firefox and possibly other browsers, so we must insert the
|
// DOM node into the document to ensure the text part is correct.
|
var setClipboardData = function ( clipboardData, node, root, config ) {
|
var body = node.ownerDocument.body;
|
var willCutCopy = config.willCutCopy;
|
var html, text;
|
|
// Firefox will add an extra new line for BRs at the end of block when
|
// calculating innerText, even though they don't actually affect display.
|
// So we need to remove them first.
|
cleanupBRs( node, root, true );
|
|
node.setAttribute( 'style',
|
'position:fixed;overflow:hidden;bottom:100%;right:100%;' );
|
body.appendChild( node );
|
html = node.innerHTML;
|
text = node.innerText || node.textContent;
|
|
if ( willCutCopy ) {
|
html = willCutCopy( html );
|
}
|
|
// Firefox (and others?) returns unix line endings (\n) even on Windows.
|
// If on Windows, normalise to \r\n, since Notepad and some other crappy
|
// apps do not understand just \n.
|
if ( isWin ) {
|
text = text.replace( /\r?\n/g, '\r\n' );
|
}
|
|
clipboardData.setData( 'text/html', html );
|
clipboardData.setData( 'text/plain', text );
|
|
body.removeChild( node );
|
};
|
|
var onCut = function ( event ) {
|
var clipboardData = event.clipboardData;
|
var range = this.getSelection();
|
var root = this._root;
|
var self = this;
|
var startBlock, endBlock, copyRoot, contents, parent, newContents, node;
|
|
// Nothing to do
|
if ( range.collapsed ) {
|
event.preventDefault();
|
return;
|
}
|
|
// Save undo checkpoint
|
this.saveUndoState( range );
|
|
// Edge only seems to support setting plain text as of 2016-03-11.
|
// Mobile Safari flat out doesn't work:
|
// https://bugs.webkit.org/show_bug.cgi?id=143776
|
if ( !isEdge && !isIOS && clipboardData ) {
|
// Clipboard content should include all parents within block, or all
|
// parents up to root if selection across blocks
|
startBlock = getStartBlockOfRange( range, root );
|
endBlock = getEndBlockOfRange( range, root );
|
copyRoot = ( ( startBlock === endBlock ) && startBlock ) || root;
|
// Extract the contents
|
contents = deleteContentsOfRange( range, root );
|
// Add any other parents not in extracted content, up to copy root
|
parent = range.commonAncestorContainer;
|
if ( parent.nodeType === TEXT_NODE ) {
|
parent = parent.parentNode;
|
}
|
while ( parent && parent !== copyRoot ) {
|
newContents = parent.cloneNode( false );
|
newContents.appendChild( contents );
|
contents = newContents;
|
parent = parent.parentNode;
|
}
|
// Set clipboard data
|
node = this.createElement( 'div' );
|
node.appendChild( contents );
|
setClipboardData( clipboardData, node, root, this._config );
|
event.preventDefault();
|
} else {
|
setTimeout( function () {
|
try {
|
// If all content removed, ensure div at start of root.
|
self._ensureBottomLine();
|
} catch ( error ) {
|
self.didError( error );
|
}
|
}, 0 );
|
}
|
|
this.setSelection( range );
|
};
|
|
var onCopy = function ( event ) {
|
var clipboardData = event.clipboardData;
|
var range = this.getSelection();
|
var root = this._root;
|
var startBlock, endBlock, copyRoot, contents, parent, newContents, node;
|
|
// Edge only seems to support setting plain text as of 2016-03-11.
|
// Mobile Safari flat out doesn't work:
|
// https://bugs.webkit.org/show_bug.cgi?id=143776
|
if ( !isEdge && !isIOS && clipboardData ) {
|
// Clipboard content should include all parents within block, or all
|
// parents up to root if selection across blocks
|
startBlock = getStartBlockOfRange( range, root );
|
endBlock = getEndBlockOfRange( range, root );
|
copyRoot = ( ( startBlock === endBlock ) && startBlock ) || root;
|
// Clone range to mutate, then move up as high as possible without
|
// passing the copy root node.
|
range = range.cloneRange();
|
moveRangeBoundariesDownTree( range );
|
moveRangeBoundariesUpTree( range, copyRoot, copyRoot, root );
|
// Extract the contents
|
contents = range.cloneContents();
|
// Add any other parents not in extracted content, up to copy root
|
parent = range.commonAncestorContainer;
|
if ( parent.nodeType === TEXT_NODE ) {
|
parent = parent.parentNode;
|
}
|
while ( parent && parent !== copyRoot ) {
|
newContents = parent.cloneNode( false );
|
newContents.appendChild( contents );
|
contents = newContents;
|
parent = parent.parentNode;
|
}
|
// Set clipboard data
|
node = this.createElement( 'div' );
|
node.appendChild( contents );
|
setClipboardData( clipboardData, node, root, this._config );
|
event.preventDefault();
|
}
|
};
|
|
// Need to monitor for shift key like this, as event.shiftKey is not available
|
// in paste event.
|
function monitorShiftKey ( event ) {
|
this.isShiftDown = event.shiftKey;
|
}
|
|
var onPaste = function ( event ) {
|
var clipboardData = event.clipboardData;
|
var items = clipboardData && clipboardData.items;
|
var choosePlain = this.isShiftDown;
|
var fireDrop = false;
|
var hasImage = false;
|
var plainItem = null;
|
var self = this;
|
var l, item, type, types, data;
|
|
// Current HTML5 Clipboard interface
|
// ---------------------------------
|
// https://html.spec.whatwg.org/multipage/interaction.html
|
|
// Edge only provides access to plain text as of 2016-03-11 and gives no
|
// indication there should be an HTML part. However, it does support access
|
// to image data, so check if this is present and use if so.
|
if ( isEdge && items ) {
|
l = items.length;
|
while ( l-- ) {
|
if ( !choosePlain && /^image\/.*/.test( items[l].type ) ) {
|
hasImage = true;
|
}
|
}
|
if ( !hasImage ) {
|
items = null;
|
}
|
}
|
if ( items ) {
|
event.preventDefault();
|
l = items.length;
|
while ( l-- ) {
|
item = items[l];
|
type = item.type;
|
if ( !choosePlain && type === 'text/html' ) {
|
/*jshint loopfunc: true */
|
item.getAsString( function ( html ) {
|
self.insertHTML( html, true );
|
});
|
/*jshint loopfunc: false */
|
return;
|
}
|
if ( type === 'text/plain' ) {
|
plainItem = item;
|
}
|
if ( !choosePlain && /^image\/.*/.test( type ) ) {
|
hasImage = true;
|
}
|
}
|
// Treat image paste as a drop of an image file.
|
if ( hasImage ) {
|
this.fireEvent( 'dragover', {
|
dataTransfer: clipboardData,
|
/*jshint loopfunc: true */
|
preventDefault: function () {
|
fireDrop = true;
|
}
|
/*jshint loopfunc: false */
|
});
|
if ( fireDrop ) {
|
this.fireEvent( 'drop', {
|
dataTransfer: clipboardData
|
});
|
}
|
} else if ( plainItem ) {
|
plainItem.getAsString( function ( text ) {
|
self.insertPlainText( text, true );
|
});
|
}
|
return;
|
}
|
|
// Old interface
|
// -------------
|
|
// Safari (and indeed many other OS X apps) copies stuff as text/rtf
|
// rather than text/html; even from a webpage in Safari. The only way
|
// to get an HTML version is to fallback to letting the browser insert
|
// the content. Same for getting image data. *Sigh*.
|
//
|
// Firefox is even worse: it doesn't even let you know that there might be
|
// an RTF version on the clipboard, but it will also convert to HTML if you
|
// let the browser insert the content. I've filed
|
// https://bugzilla.mozilla.org/show_bug.cgi?id=1254028
|
types = clipboardData && clipboardData.types;
|
if ( !isEdge && types && (
|
indexOf.call( types, 'text/html' ) > -1 || (
|
!isGecko &&
|
indexOf.call( types, 'text/plain' ) > -1 &&
|
indexOf.call( types, 'text/rtf' ) < 0 )
|
)) {
|
event.preventDefault();
|
// Abiword on Linux copies a plain text and html version, but the HTML
|
// version is the empty string! So always try to get HTML, but if none,
|
// insert plain text instead. On iOS, Facebook (and possibly other
|
// apps?) copy links as type text/uri-list, but also insert a **blank**
|
// text/plain item onto the clipboard. Why? Who knows.
|
if ( !choosePlain && ( data = clipboardData.getData( 'text/html' ) ) ) {
|
this.insertHTML( data, true );
|
} else if (
|
( data = clipboardData.getData( 'text/plain' ) ) ||
|
( data = clipboardData.getData( 'text/uri-list' ) ) ) {
|
this.insertPlainText( data, true );
|
}
|
return;
|
}
|
|
// No interface. Includes all versions of IE :(
|
// --------------------------------------------
|
|
this._awaitingPaste = true;
|
|
var body = this._doc.body,
|
range = this.getSelection(),
|
startContainer = range.startContainer,
|
startOffset = range.startOffset,
|
endContainer = range.endContainer,
|
endOffset = range.endOffset;
|
|
// We need to position the pasteArea in the visible portion of the screen
|
// to stop the browser auto-scrolling.
|
var pasteArea = this.createElement( 'DIV', {
|
contenteditable: 'true',
|
style: 'position:fixed; overflow:hidden; top:0; right:100%; width:1px; height:1px;'
|
});
|
body.appendChild( pasteArea );
|
range.selectNodeContents( pasteArea );
|
this.setSelection( range );
|
|
// A setTimeout of 0 means this is added to the back of the
|
// single javascript thread, so it will be executed after the
|
// paste event.
|
setTimeout( function () {
|
try {
|
// IE sometimes fires the beforepaste event twice; make sure it is
|
// not run again before our after paste function is called.
|
self._awaitingPaste = false;
|
|
// Get the pasted content and clean
|
var html = '',
|
next = pasteArea,
|
first, range;
|
|
// #88: Chrome can apparently split the paste area if certain
|
// content is inserted; gather them all up.
|
while ( pasteArea = next ) {
|
next = pasteArea.nextSibling;
|
detach( pasteArea );
|
// Safari and IE like putting extra divs around things.
|
first = pasteArea.firstChild;
|
if ( first && first === pasteArea.lastChild &&
|
first.nodeName === 'DIV' ) {
|
pasteArea = first;
|
}
|
html += pasteArea.innerHTML;
|
}
|
|
range = self.createRange(
|
startContainer, startOffset, endContainer, endOffset );
|
self.setSelection( range );
|
|
if ( html ) {
|
self.insertHTML( html, true );
|
}
|
} catch ( error ) {
|
self.didError( error );
|
}
|
}, 0 );
|
};
|
|
// On Windows you can drag an drop text. We can't handle this ourselves, because
|
// as far as I can see, there's no way to get the drop insertion point. So just
|
// save an undo state and hope for the best.
|
var onDrop = function ( event ) {
|
var types = event.dataTransfer.types;
|
var l = types.length;
|
var hasPlain = false;
|
var hasHTML = false;
|
while ( l-- ) {
|
switch ( types[l] ) {
|
case 'text/plain':
|
hasPlain = true;
|
break;
|
case 'text/html':
|
hasHTML = true;
|
break;
|
default:
|
return;
|
}
|
}
|
if ( hasHTML || hasPlain ) {
|
this.saveUndoState();
|
}
|
};
|
|
function mergeObjects ( base, extras, mayOverride ) {
|
var prop, value;
|
if ( !base ) {
|
base = {};
|
}
|
if ( extras ) {
|
for ( prop in extras ) {
|
if ( mayOverride || !( prop in base ) ) {
|
value = extras[ prop ];
|
base[ prop ] = ( value && value.constructor === Object ) ?
|
mergeObjects( base[ prop ], value, mayOverride ) :
|
value;
|
}
|
}
|
}
|
return base;
|
}
|
|
function Squire ( root, config ) {
|
if ( root.nodeType === DOCUMENT_NODE ) {
|
root = root.body;
|
}
|
var doc = root.ownerDocument;
|
var win = doc.defaultView;
|
var mutation;
|
|
this._win = win;
|
this._doc = doc;
|
this._root = root;
|
|
this._events = {};
|
|
this._isFocused = false;
|
this._lastSelection = null;
|
|
// IE loses selection state of iframe on blur, so make sure we
|
// cache it just before it loses focus.
|
if ( losesSelectionOnBlur ) {
|
this.addEventListener( 'beforedeactivate', this.getSelection );
|
}
|
|
this._hasZWS = false;
|
|
this._lastAnchorNode = null;
|
this._lastFocusNode = null;
|
this._path = '';
|
this._willUpdatePath = false;
|
|
if ( 'onselectionchange' in doc ) {
|
this.addEventListener( 'selectionchange', this._updatePathOnEvent );
|
} else {
|
this.addEventListener( 'keyup', this._updatePathOnEvent );
|
this.addEventListener( 'mouseup', this._updatePathOnEvent );
|
}
|
|
this._undoIndex = -1;
|
this._undoStack = [];
|
this._undoStackLength = 0;
|
this._isInUndoState = false;
|
this._ignoreChange = false;
|
this._ignoreAllChanges = false;
|
|
if ( canObserveMutations ) {
|
mutation = new MutationObserver( this._docWasChanged.bind( this ) );
|
mutation.observe( root, {
|
childList: true,
|
attributes: true,
|
characterData: true,
|
subtree: true
|
});
|
this._mutation = mutation;
|
} else {
|
this.addEventListener( 'keyup', this._keyUpDetectChange );
|
}
|
|
// On blur, restore focus except if the user taps or clicks to focus a
|
// specific point. Can't actually use click event because focus happens
|
// before click, so use mousedown/touchstart
|
this._restoreSelection = false;
|
this.addEventListener( 'blur', enableRestoreSelection );
|
this.addEventListener( 'mousedown', disableRestoreSelection );
|
this.addEventListener( 'touchstart', disableRestoreSelection );
|
this.addEventListener( 'focus', restoreSelection );
|
|
// IE sometimes fires the beforepaste event twice; make sure it is not run
|
// again before our after paste function is called.
|
this._awaitingPaste = false;
|
this.addEventListener( isIElt11 ? 'beforecut' : 'cut', onCut );
|
this.addEventListener( 'copy', onCopy );
|
this.addEventListener( 'keydown', monitorShiftKey );
|
this.addEventListener( 'keyup', monitorShiftKey );
|
this.addEventListener( isIElt11 ? 'beforepaste' : 'paste', onPaste );
|
this.addEventListener( 'drop', onDrop );
|
|
// Opera does not fire keydown repeatedly.
|
this.addEventListener( isPresto ? 'keypress' : 'keydown', onKey );
|
|
// Add key handlers
|
this._keyHandlers = Object.create( keyHandlers );
|
|
// Override default properties
|
this.setConfig( config );
|
|
// Fix IE<10's buggy implementation of Text#splitText.
|
// If the split is at the end of the node, it doesn't insert the newly split
|
// node into the document, and sets its value to undefined rather than ''.
|
// And even if the split is not at the end, the original node is removed
|
// from the document and replaced by another, rather than just having its
|
// data shortened.
|
// We used to feature test for this, but then found the feature test would
|
// sometimes pass, but later on the buggy behaviour would still appear.
|
// I think IE10 does not have the same bug, but it doesn't hurt to replace
|
// its native fn too and then we don't need yet another UA category.
|
if ( isIElt11 ) {
|
win.Text.prototype.splitText = function ( offset ) {
|
var afterSplit = this.ownerDocument.createTextNode(
|
this.data.slice( offset ) ),
|
next = this.nextSibling,
|
parent = this.parentNode,
|
toDelete = this.length - offset;
|
if ( next ) {
|
parent.insertBefore( afterSplit, next );
|
} else {
|
parent.appendChild( afterSplit );
|
}
|
if ( toDelete ) {
|
this.deleteData( offset, toDelete );
|
}
|
return afterSplit;
|
};
|
}
|
|
root.setAttribute( 'contenteditable', 'true' );
|
|
// Remove Firefox's built-in controls
|
try {
|
doc.execCommand( 'enableObjectResizing', false, 'false' );
|
doc.execCommand( 'enableInlineTableEditing', false, 'false' );
|
} catch ( error ) {}
|
|
root.__squire__ = this;
|
|
// Need to register instance before calling setHTML, so that the fixCursor
|
// function can lookup any default block tag options set.
|
this.setHTML( '' );
|
}
|
|
var proto = Squire.prototype;
|
|
var sanitizeToDOMFragment = function ( html, isPaste, self ) {
|
var doc = self._doc;
|
var frag = html ? DOMPurify.sanitize( html, {
|
ALLOW_UNKNOWN_PROTOCOLS: true,
|
WHOLE_DOCUMENT: false,
|
RETURN_DOM: true,
|
RETURN_DOM_FRAGMENT: true
|
}) : null;
|
return frag ? doc.importNode( frag, true ) : doc.createDocumentFragment();
|
};
|
|
proto.setConfig = function ( config ) {
|
config = mergeObjects({
|
blockTag: 'DIV',
|
blockAttributes: null,
|
tagAttributes: {
|
blockquote: null,
|
ul: null,
|
ol: null,
|
li: null,
|
a: null
|
},
|
classNames: {
|
colour: 'colour',
|
fontFamily: 'font',
|
fontSize: 'size',
|
highlight: 'highlight'
|
},
|
leafNodeNames: leafNodeNames,
|
undo: {
|
documentSizeThreshold: -1, // -1 means no threshold
|
undoLimit: -1 // -1 means no limit
|
},
|
isInsertedHTMLSanitized: true,
|
isSetHTMLSanitized: true,
|
sanitizeToDOMFragment:
|
typeof DOMPurify !== 'undefined' && DOMPurify.isSupported ?
|
sanitizeToDOMFragment : null,
|
willCutCopy: null
|
}, config, true );
|
|
// Users may specify block tag in lower case
|
config.blockTag = config.blockTag.toUpperCase();
|
|
this._config = config;
|
|
return this;
|
};
|
|
proto.createElement = function ( tag, props, children ) {
|
return createElement( this._doc, tag, props, children );
|
};
|
|
proto.createDefaultBlock = function ( children ) {
|
var config = this._config;
|
return fixCursor(
|
this.createElement( config.blockTag, config.blockAttributes, children ),
|
this._root
|
);
|
};
|
|
proto.didError = function ( error ) {
|
console.log( error );
|
};
|
|
proto.getDocument = function () {
|
return this._doc;
|
};
|
proto.getRoot = function () {
|
return this._root;
|
};
|
|
proto.modifyDocument = function ( modificationCallback ) {
|
var mutation = this._mutation;
|
if ( mutation ) {
|
if ( mutation.takeRecords().length ) {
|
this._docWasChanged();
|
}
|
mutation.disconnect();
|
}
|
|
this._ignoreAllChanges = true;
|
modificationCallback();
|
this._ignoreAllChanges = false;
|
|
if ( mutation ) {
|
mutation.observe( this._root, {
|
childList: true,
|
attributes: true,
|
characterData: true,
|
subtree: true
|
});
|
this._ignoreChange = false;
|
}
|
};
|
|
// --- Events ---
|
|
// Subscribing to these events won't automatically add a listener to the
|
// document node, since these events are fired in a custom manner by the
|
// editor code.
|
var customEvents = {
|
pathChange: 1, select: 1, input: 1, undoStateChange: 1
|
};
|
|
proto.fireEvent = function ( type, event ) {
|
var handlers = this._events[ type ];
|
var isFocused, l, obj;
|
// UI code, especially modal views, may be monitoring for focus events and
|
// immediately removing focus. In certain conditions, this can cause the
|
// focus event to fire after the blur event, which can cause an infinite
|
// loop. So we detect whether we're actually focused/blurred before firing.
|
if ( /^(?:focus|blur)/.test( type ) ) {
|
isFocused = this._root === this._doc.activeElement;
|
if ( type === 'focus' ) {
|
if ( !isFocused || this._isFocused ) {
|
return this;
|
}
|
this._isFocused = true;
|
} else {
|
if ( isFocused || !this._isFocused ) {
|
return this;
|
}
|
this._isFocused = false;
|
}
|
}
|
if ( handlers ) {
|
if ( !event ) {
|
event = {};
|
}
|
if ( event.type !== type ) {
|
event.type = type;
|
}
|
// Clone handlers array, so any handlers added/removed do not affect it.
|
handlers = handlers.slice();
|
l = handlers.length;
|
while ( l-- ) {
|
obj = handlers[l];
|
try {
|
if ( obj.handleEvent ) {
|
obj.handleEvent( event );
|
} else {
|
obj.call( this, event );
|
}
|
} catch ( error ) {
|
error.details = 'Squire: fireEvent error. Event type: ' + type;
|
this.didError( error );
|
}
|
}
|
}
|
return this;
|
};
|
|
proto.destroy = function () {
|
var events = this._events;
|
var type;
|
|
for ( type in events ) {
|
this.removeEventListener( type );
|
}
|
if ( this._mutation ) {
|
this._mutation.disconnect();
|
}
|
delete this._root.__squire__;
|
|
// Destroy undo stack
|
this._undoIndex = -1;
|
this._undoStack = [];
|
this._undoStackLength = 0;
|
};
|
|
proto.handleEvent = function ( event ) {
|
this.fireEvent( event.type, event );
|
};
|
|
proto.addEventListener = function ( type, fn ) {
|
var handlers = this._events[ type ];
|
var target = this._root;
|
if ( !fn ) {
|
this.didError({
|
name: 'Squire: addEventListener with null or undefined fn',
|
message: 'Event type: ' + type
|
});
|
return this;
|
}
|
if ( !handlers ) {
|
handlers = this._events[ type ] = [];
|
if ( !customEvents[ type ] ) {
|
if ( type === 'selectionchange' ) {
|
target = this._doc;
|
}
|
target.addEventListener( type, this, true );
|
}
|
}
|
handlers.push( fn );
|
return this;
|
};
|
|
proto.removeEventListener = function ( type, fn ) {
|
var handlers = this._events[ type ];
|
var target = this._root;
|
var l;
|
if ( handlers ) {
|
if ( fn ) {
|
l = handlers.length;
|
while ( l-- ) {
|
if ( handlers[l] === fn ) {
|
handlers.splice( l, 1 );
|
}
|
}
|
} else {
|
handlers.length = 0;
|
}
|
if ( !handlers.length ) {
|
delete this._events[ type ];
|
if ( !customEvents[ type ] ) {
|
if ( type === 'selectionchange' ) {
|
target = this._doc;
|
}
|
target.removeEventListener( type, this, true );
|
}
|
}
|
}
|
return this;
|
};
|
|
// --- Selection and Path ---
|
|
proto.createRange =
|
function ( range, startOffset, endContainer, endOffset ) {
|
if ( range instanceof this._win.Range ) {
|
return range.cloneRange();
|
}
|
var domRange = this._doc.createRange();
|
domRange.setStart( range, startOffset );
|
if ( endContainer ) {
|
domRange.setEnd( endContainer, endOffset );
|
} else {
|
domRange.setEnd( range, startOffset );
|
}
|
return domRange;
|
};
|
|
proto.getCursorPosition = function ( range ) {
|
if ( ( !range && !( range = this.getSelection() ) ) ||
|
!range.getBoundingClientRect ) {
|
return null;
|
}
|
// Get the bounding rect
|
var rect = range.getBoundingClientRect();
|
var node, parent;
|
if ( rect && !rect.top ) {
|
this._ignoreChange = true;
|
node = this._doc.createElement( 'SPAN' );
|
node.textContent = ZWS;
|
insertNodeInRange( range, node );
|
rect = node.getBoundingClientRect();
|
parent = node.parentNode;
|
parent.removeChild( node );
|
mergeInlines( parent, range );
|
}
|
return rect;
|
};
|
|
proto._moveCursorTo = function ( toStart ) {
|
var root = this._root,
|
range = this.createRange( root, toStart ? 0 : root.childNodes.length );
|
moveRangeBoundariesDownTree( range );
|
this.setSelection( range );
|
return this;
|
};
|
proto.moveCursorToStart = function () {
|
return this._moveCursorTo( true );
|
};
|
proto.moveCursorToEnd = function () {
|
return this._moveCursorTo( false );
|
};
|
|
var getWindowSelection = function ( self ) {
|
return self._win.getSelection() || null;
|
};
|
|
proto.setSelection = function ( range ) {
|
if ( range ) {
|
this._lastSelection = range;
|
// If we're setting selection, that automatically, and synchronously, // triggers a focus event. So just store the selection and mark it as
|
// needing restore on focus.
|
if ( !this._isFocused ) {
|
enableRestoreSelection.call( this );
|
} else if ( isAndroid && !this._restoreSelection ) {
|
// Android closes the keyboard on removeAllRanges() and doesn't
|
// open it again when addRange() is called, sigh.
|
// Since Android doesn't trigger a focus event in setSelection(),
|
// use a blur/focus dance to work around this by letting the
|
// selection be restored on focus.
|
// Need to check for !this._restoreSelection to avoid infinite loop
|
enableRestoreSelection.call( this );
|
this.blur();
|
this.focus();
|
} else {
|
// iOS bug: if you don't focus the iframe before setting the
|
// selection, you can end up in a state where you type but the input
|
// doesn't get directed into the contenteditable area but is instead
|
// lost in a black hole. Very strange.
|
if ( isIOS ) {
|
this._win.focus();
|
}
|
var sel = getWindowSelection( this );
|
if ( sel ) {
|
sel.removeAllRanges();
|
sel.addRange( range );
|
}
|
}
|
}
|
return this;
|
};
|
|
proto.getSelection = function () {
|
var sel = getWindowSelection( this );
|
var root = this._root;
|
var selection, startContainer, endContainer, node;
|
// If not focused, always rely on cached selection; another function may
|
// have set it but the DOM is not modified until focus again
|
if ( this._isFocused && sel && sel.rangeCount ) {
|
selection = sel.getRangeAt( 0 ).cloneRange();
|
startContainer = selection.startContainer;
|
endContainer = selection.endContainer;
|
// FF can return the selection as being inside an <img>. WTF?
|
if ( startContainer && isLeaf( startContainer ) ) {
|
selection.setStartBefore( startContainer );
|
}
|
if ( endContainer && isLeaf( endContainer ) ) {
|
selection.setEndBefore( endContainer );
|
}
|
}
|
if ( selection &&
|
isOrContains( root, selection.commonAncestorContainer ) ) {
|
this._lastSelection = selection;
|
} else {
|
selection = this._lastSelection;
|
node = selection.commonAncestorContainer;
|
// Check the editor is in the live document; if not, the range has
|
// probably been rewritten by the browser and is bogus
|
if ( !isOrContains( node.ownerDocument, node ) ) {
|
selection = null;
|
}
|
}
|
if ( !selection ) {
|
selection = this.createRange( root.firstChild, 0 );
|
}
|
return selection;
|
};
|
|
function enableRestoreSelection () {
|
this._restoreSelection = true;
|
}
|
function disableRestoreSelection () {
|
this._restoreSelection = false;
|
}
|
function restoreSelection () {
|
if ( this._restoreSelection ) {
|
this.setSelection( this._lastSelection );
|
}
|
}
|
|
proto.getSelectedText = function () {
|
var range = this.getSelection();
|
if ( !range || range.collapsed ) {
|
return '';
|
}
|
var walker = new TreeWalker(
|
range.commonAncestorContainer,
|
SHOW_TEXT|SHOW_ELEMENT,
|
function ( node ) {
|
return isNodeContainedInRange( range, node, true );
|
}
|
);
|
var startContainer = range.startContainer;
|
var endContainer = range.endContainer;
|
var node = walker.currentNode = startContainer;
|
var textContent = '';
|
var addedTextInBlock = false;
|
var value;
|
|
if ( !walker.filter( node ) ) {
|
node = walker.nextNode();
|
}
|
|
while ( node ) {
|
if ( node.nodeType === TEXT_NODE ) {
|
value = node.data;
|
if ( value && ( /\S/.test( value ) ) ) {
|
if ( node === endContainer ) {
|
value = value.slice( 0, range.endOffset );
|
}
|
if ( node === startContainer ) {
|
value = value.slice( range.startOffset );
|
}
|
textContent += value;
|
addedTextInBlock = true;
|
}
|
} else if ( node.nodeName === 'BR' ||
|
addedTextInBlock && !isInline( node ) ) {
|
textContent += '\n';
|
addedTextInBlock = false;
|
}
|
node = walker.nextNode();
|
}
|
|
return textContent;
|
};
|
|
proto.getPath = function () {
|
return this._path;
|
};
|
|
// --- Workaround for browsers that can't focus empty text nodes ---
|
|
// WebKit bug: https://bugs.webkit.org/show_bug.cgi?id=15256
|
|
// Walk down the tree starting at the root and remove any ZWS. If the node only
|
// contained ZWS space then remove it too. We may want to keep one ZWS node at
|
// the bottom of the tree so the block can be selected. Define that node as the
|
// keepNode.
|
var removeZWS = function ( root, keepNode ) {
|
var walker = new TreeWalker( root, SHOW_TEXT );
|
var parent, node, index;
|
while ( node = walker.nextNode() ) {
|
while ( ( index = node.data.indexOf( ZWS ) ) > -1 &&
|
( !keepNode || node.parentNode !== keepNode ) ) {
|
if ( node.length === 1 ) {
|
do {
|
parent = node.parentNode;
|
parent.removeChild( node );
|
node = parent;
|
walker.currentNode = parent;
|
} while ( isInline( node ) && !getLength( node ) );
|
break;
|
} else {
|
node.deleteData( index, 1 );
|
}
|
}
|
}
|
};
|
|
proto._didAddZWS = function () {
|
this._hasZWS = true;
|
};
|
proto._removeZWS = function () {
|
if ( !this._hasZWS ) {
|
return;
|
}
|
removeZWS( this._root );
|
this._hasZWS = false;
|
};
|
|
// --- Path change events ---
|
|
proto._updatePath = function ( range, force ) {
|
if ( !range ) {
|
return;
|
}
|
var anchor = range.startContainer,
|
focus = range.endContainer,
|
newPath;
|
if ( force || anchor !== this._lastAnchorNode ||
|
focus !== this._lastFocusNode ) {
|
this._lastAnchorNode = anchor;
|
this._lastFocusNode = focus;
|
newPath = ( anchor && focus ) ? ( anchor === focus ) ?
|
getPath( focus, this._root, this._config ) : '(selection)' : '';
|
if ( this._path !== newPath ) {
|
this._path = newPath;
|
this.fireEvent( 'pathChange', { path: newPath } );
|
}
|
}
|
this.fireEvent( range.collapsed ? 'cursor' : 'select', {
|
range: range
|
});
|
};
|
|
// selectionchange is fired synchronously in IE when removing current selection
|
// and when setting new selection; keyup/mouseup may have processing we want
|
// to do first. Either way, send to next event loop.
|
proto._updatePathOnEvent = function ( event ) {
|
var self = this;
|
if ( self._isFocused && !self._willUpdatePath ) {
|
self._willUpdatePath = true;
|
setTimeout( function () {
|
self._willUpdatePath = false;
|
self._updatePath( self.getSelection() );
|
}, 0 );
|
}
|
};
|
|
// --- Focus ---
|
|
proto.focus = function () {
|
this._root.focus();
|
|
if ( isIE ) {
|
this.fireEvent( 'focus' );
|
}
|
|
return this;
|
};
|
|
proto.blur = function () {
|
this._root.blur();
|
|
if ( isIE ) {
|
this.fireEvent( 'blur' );
|
}
|
|
return this;
|
};
|
|
// --- Bookmarking ---
|
|
var startSelectionId = 'squire-selection-start';
|
var endSelectionId = 'squire-selection-end';
|
|
proto._saveRangeToBookmark = function ( range ) {
|
var startNode = this.createElement( 'INPUT', {
|
id: startSelectionId,
|
type: 'hidden'
|
}),
|
endNode = this.createElement( 'INPUT', {
|
id: endSelectionId,
|
type: 'hidden'
|
}),
|
temp;
|
|
insertNodeInRange( range, startNode );
|
range.collapse( false );
|
insertNodeInRange( range, endNode );
|
|
// In a collapsed range, the start is sometimes inserted after the end!
|
if ( startNode.compareDocumentPosition( endNode ) &
|
DOCUMENT_POSITION_PRECEDING ) {
|
startNode.id = endSelectionId;
|
endNode.id = startSelectionId;
|
temp = startNode;
|
startNode = endNode;
|
endNode = temp;
|
}
|
|
range.setStartAfter( startNode );
|
range.setEndBefore( endNode );
|
};
|
|
proto._getRangeAndRemoveBookmark = function ( range ) {
|
var root = this._root,
|
start = root.querySelector( '#' + startSelectionId ),
|
end = root.querySelector( '#' + endSelectionId );
|
|
if ( start && end ) {
|
var startContainer = start.parentNode,
|
endContainer = end.parentNode,
|
startOffset = indexOf.call( startContainer.childNodes, start ),
|
endOffset = indexOf.call( endContainer.childNodes, end );
|
|
if ( startContainer === endContainer ) {
|
endOffset -= 1;
|
}
|
|
detach( start );
|
detach( end );
|
|
if ( !range ) {
|
range = this._doc.createRange();
|
}
|
range.setStart( startContainer, startOffset );
|
range.setEnd( endContainer, endOffset );
|
|
// Merge any text nodes we split
|
mergeInlines( startContainer, range );
|
if ( startContainer !== endContainer ) {
|
mergeInlines( endContainer, range );
|
}
|
|
// If we didn't split a text node, we should move into any adjacent
|
// text node to current selection point
|
if ( range.collapsed ) {
|
startContainer = range.startContainer;
|
if ( startContainer.nodeType === TEXT_NODE ) {
|
endContainer = startContainer.childNodes[ range.startOffset ];
|
if ( !endContainer || endContainer.nodeType !== TEXT_NODE ) {
|
endContainer =
|
startContainer.childNodes[ range.startOffset - 1 ];
|
}
|
if ( endContainer && endContainer.nodeType === TEXT_NODE ) {
|
range.setStart( endContainer, 0 );
|
range.collapse( true );
|
}
|
}
|
}
|
}
|
return range || null;
|
};
|
|
// --- Undo ---
|
|
proto._keyUpDetectChange = function ( event ) {
|
var code = event.keyCode;
|
// Presume document was changed if:
|
// 1. A modifier key (other than shift) wasn't held down
|
// 2. The key pressed is not in range 16<=x<=20 (control keys)
|
// 3. The key pressed is not in range 33<=x<=45 (navigation keys)
|
if ( !event.ctrlKey && !event.metaKey && !event.altKey &&
|
( code < 16 || code > 20 ) &&
|
( code < 33 || code > 45 ) ) {
|
this._docWasChanged();
|
}
|
};
|
|
proto._docWasChanged = function () {
|
if ( canWeakMap ) {
|
nodeCategoryCache = new WeakMap();
|
}
|
if ( this._ignoreAllChanges ) {
|
return;
|
}
|
|
if ( canObserveMutations && this._ignoreChange ) {
|
this._ignoreChange = false;
|
return;
|
}
|
if ( this._isInUndoState ) {
|
this._isInUndoState = false;
|
this.fireEvent( 'undoStateChange', {
|
canUndo: true,
|
canRedo: false
|
});
|
}
|
this.fireEvent( 'input' );
|
};
|
|
// Leaves bookmark
|
proto._recordUndoState = function ( range, replace ) {
|
// Don't record if we're already in an undo state
|
if ( !this._isInUndoState|| replace ) {
|
// Advance pointer to new position
|
var undoIndex = this._undoIndex;
|
var undoStack = this._undoStack;
|
var undoConfig = this._config.undo;
|
var undoThreshold = undoConfig.documentSizeThreshold;
|
var undoLimit = undoConfig.undoLimit;
|
var html;
|
|
if ( !replace ) {
|
undoIndex += 1;
|
}
|
|
// Truncate stack if longer (i.e. if has been previously undone)
|
if ( undoIndex < this._undoStackLength ) {
|
undoStack.length = this._undoStackLength = undoIndex;
|
}
|
|
// Get data
|
if ( range ) {
|
this._saveRangeToBookmark( range );
|
}
|
html = this._getHTML();
|
|
// If this document is above the configured size threshold,
|
// limit the number of saved undo states.
|
// Threshold is in bytes, JS uses 2 bytes per character
|
if ( undoThreshold > -1 && html.length * 2 > undoThreshold ) {
|
if ( undoLimit > -1 && undoIndex > undoLimit ) {
|
undoStack.splice( 0, undoIndex - undoLimit );
|
undoIndex = undoLimit;
|
this._undoStackLength = undoLimit;
|
}
|
}
|
|
// Save data
|
undoStack[ undoIndex ] = html;
|
this._undoIndex = undoIndex;
|
this._undoStackLength += 1;
|
this._isInUndoState = true;
|
}
|
};
|
|
proto.saveUndoState = function ( range ) {
|
if ( range === undefined ) {
|
range = this.getSelection();
|
}
|
this._recordUndoState( range, this._isInUndoState );
|
this._getRangeAndRemoveBookmark( range );
|
|
return this;
|
};
|
|
proto.undo = function () {
|
// Sanity check: must not be at beginning of the history stack
|
if ( this._undoIndex !== 0 || !this._isInUndoState ) {
|
// Make sure any changes since last checkpoint are saved.
|
this._recordUndoState( this.getSelection(), false );
|
|
this._undoIndex -= 1;
|
this._setHTML( this._undoStack[ this._undoIndex ] );
|
var range = this._getRangeAndRemoveBookmark();
|
if ( range ) {
|
this.setSelection( range );
|
}
|
this._isInUndoState = true;
|
this.fireEvent( 'undoStateChange', {
|
canUndo: this._undoIndex !== 0,
|
canRedo: true
|
});
|
this.fireEvent( 'input' );
|
}
|
return this;
|
};
|
|
proto.redo = function () {
|
// Sanity check: must not be at end of stack and must be in an undo
|
// state.
|
var undoIndex = this._undoIndex,
|
undoStackLength = this._undoStackLength;
|
if ( undoIndex + 1 < undoStackLength && this._isInUndoState ) {
|
this._undoIndex += 1;
|
this._setHTML( this._undoStack[ this._undoIndex ] );
|
var range = this._getRangeAndRemoveBookmark();
|
if ( range ) {
|
this.setSelection( range );
|
}
|
this.fireEvent( 'undoStateChange', {
|
canUndo: true,
|
canRedo: undoIndex + 2 < undoStackLength
|
});
|
this.fireEvent( 'input' );
|
}
|
return this;
|
};
|
|
// --- Inline formatting ---
|
|
// Looks for matching tag and attributes, so won't work
|
// if <strong> instead of <b> etc.
|
proto.hasFormat = function ( tag, attributes, range ) {
|
// 1. Normalise the arguments and get selection
|
tag = tag.toUpperCase();
|
if ( !attributes ) { attributes = {}; }
|
if ( !range && !( range = this.getSelection() ) ) {
|
return false;
|
}
|
|
// Sanitize range to prevent weird IE artifacts
|
if ( !range.collapsed &&
|
range.startContainer.nodeType === TEXT_NODE &&
|
range.startOffset === range.startContainer.length &&
|
range.startContainer.nextSibling ) {
|
range.setStartBefore( range.startContainer.nextSibling );
|
}
|
if ( !range.collapsed &&
|
range.endContainer.nodeType === TEXT_NODE &&
|
range.endOffset === 0 &&
|
range.endContainer.previousSibling ) {
|
range.setEndAfter( range.endContainer.previousSibling );
|
}
|
|
// If the common ancestor is inside the tag we require, we definitely
|
// have the format.
|
var root = this._root;
|
var common = range.commonAncestorContainer;
|
var walker, node;
|
if ( getNearest( common, root, tag, attributes ) ) {
|
return true;
|
}
|
|
// If common ancestor is a text node and doesn't have the format, we
|
// definitely don't have it.
|
if ( common.nodeType === TEXT_NODE ) {
|
return false;
|
}
|
|
// Otherwise, check each text node at least partially contained within
|
// the selection and make sure all of them have the format we want.
|
walker = new TreeWalker( common, SHOW_TEXT, function ( node ) {
|
return isNodeContainedInRange( range, node, true );
|
});
|
|
var seenNode = false;
|
while ( node = walker.nextNode() ) {
|
if ( !getNearest( node, root, tag, attributes ) ) {
|
return false;
|
}
|
seenNode = true;
|
}
|
|
return seenNode;
|
};
|
|
// Extracts the font-family and font-size (if any) of the element
|
// holding the cursor. If there's a selection, returns an empty object.
|
proto.getFontInfo = function ( range ) {
|
var fontInfo = {
|
color: undefined,
|
backgroundColor: undefined,
|
family: undefined,
|
size: undefined
|
};
|
var seenAttributes = 0;
|
var element, style, attr;
|
|
if ( !range && !( range = this.getSelection() ) ) {
|
return fontInfo;
|
}
|
|
element = range.commonAncestorContainer;
|
if ( range.collapsed || element.nodeType === TEXT_NODE ) {
|
if ( element.nodeType === TEXT_NODE ) {
|
element = element.parentNode;
|
}
|
while ( seenAttributes < 4 && element ) {
|
if ( style = element.style ) {
|
if ( !fontInfo.color && ( attr = style.color ) ) {
|
fontInfo.color = attr;
|
seenAttributes += 1;
|
}
|
if ( !fontInfo.backgroundColor &&
|
( attr = style.backgroundColor ) ) {
|
fontInfo.backgroundColor = attr;
|
seenAttributes += 1;
|
}
|
if ( !fontInfo.family && ( attr = style.fontFamily ) ) {
|
fontInfo.family = attr;
|
seenAttributes += 1;
|
}
|
if ( !fontInfo.size && ( attr = style.fontSize ) ) {
|
fontInfo.size = attr;
|
seenAttributes += 1;
|
}
|
}
|
element = element.parentNode;
|
}
|
}
|
return fontInfo;
|
};
|
|
proto._addFormat = function ( tag, attributes, range ) {
|
// If the range is collapsed we simply insert the node by wrapping
|
// it round the range and focus it.
|
var root = this._root;
|
var el, walker, startContainer, endContainer, startOffset, endOffset,
|
node, needsFormat, block;
|
|
if ( range.collapsed ) {
|
el = fixCursor( this.createElement( tag, attributes ), root );
|
insertNodeInRange( range, el );
|
range.setStart( el.firstChild, el.firstChild.length );
|
range.collapse( true );
|
|
// Clean up any previous formats that may have been set on this block
|
// that are unused.
|
block = el;
|
while ( isInline( block ) ) {
|
block = block.parentNode;
|
}
|
removeZWS( block, el );
|
}
|
// Otherwise we find all the textnodes in the range (splitting
|
// partially selected nodes) and if they're not already formatted
|
// correctly we wrap them in the appropriate tag.
|
else {
|
// Create an iterator to walk over all the text nodes under this
|
// ancestor which are in the range and not already formatted
|
// correctly.
|
//
|
// In Blink/WebKit, empty blocks may have no text nodes, just a <br>.
|
// Therefore we wrap this in the tag as well, as this will then cause it
|
// to apply when the user types something in the block, which is
|
// presumably what was intended.
|
//
|
// IMG tags are included because we may want to create a link around
|
// them, and adding other styles is harmless.
|
walker = new TreeWalker(
|
range.commonAncestorContainer,
|
SHOW_TEXT|SHOW_ELEMENT,
|
function ( node ) {
|
return ( node.nodeType === TEXT_NODE ||
|
node.nodeName === 'BR' ||
|
node.nodeName === 'IMG'
|
) && isNodeContainedInRange( range, node, true );
|
}
|
);
|
|
// Start at the beginning node of the range and iterate through
|
// all the nodes in the range that need formatting.
|
startContainer = range.startContainer;
|
startOffset = range.startOffset;
|
endContainer = range.endContainer;
|
endOffset = range.endOffset;
|
|
// Make sure we start with a valid node.
|
walker.currentNode = startContainer;
|
if ( !walker.filter( startContainer ) ) {
|
startContainer = walker.nextNode();
|
startOffset = 0;
|
}
|
|
// If there are no interesting nodes in the selection, abort
|
if ( !startContainer ) {
|
return range;
|
}
|
|
do {
|
node = walker.currentNode;
|
needsFormat = !getNearest( node, root, tag, attributes );
|
if ( needsFormat ) {
|
// <br> can never be a container node, so must have a text node
|
// if node == (end|start)Container
|
if ( node === endContainer && node.length > endOffset ) {
|
node.splitText( endOffset );
|
}
|
if ( node === startContainer && startOffset ) {
|
node = node.splitText( startOffset );
|
if ( endContainer === startContainer ) {
|
endContainer = node;
|
endOffset -= startOffset;
|
}
|
startContainer = node;
|
startOffset = 0;
|
}
|
el = this.createElement( tag, attributes );
|
replaceWith( node, el );
|
el.appendChild( node );
|
}
|
} while ( walker.nextNode() );
|
|
// If we don't finish inside a text node, offset may have changed.
|
if ( endContainer.nodeType !== TEXT_NODE ) {
|
if ( node.nodeType === TEXT_NODE ) {
|
endContainer = node;
|
endOffset = node.length;
|
} else {
|
// If <br>, we must have just wrapped it, so it must have only
|
// one child
|
endContainer = node.parentNode;
|
endOffset = 1;
|
}
|
}
|
|
// Now set the selection to as it was before
|
range = this.createRange(
|
startContainer, startOffset, endContainer, endOffset );
|
}
|
return range;
|
};
|
|
proto._removeFormat = function ( tag, attributes, range, partial ) {
|
// Add bookmark
|
this._saveRangeToBookmark( range );
|
|
// We need a node in the selection to break the surrounding
|
// formatted text.
|
var doc = this._doc,
|
fixer;
|
if ( range.collapsed ) {
|
if ( cantFocusEmptyTextNodes ) {
|
fixer = doc.createTextNode( ZWS );
|
this._didAddZWS();
|
} else {
|
fixer = doc.createTextNode( '' );
|
}
|
insertNodeInRange( range, fixer );
|
}
|
|
// Find block-level ancestor of selection
|
var root = range.commonAncestorContainer;
|
while ( isInline( root ) ) {
|
root = root.parentNode;
|
}
|
|
// Find text nodes inside formatTags that are not in selection and
|
// add an extra tag with the same formatting.
|
var startContainer = range.startContainer,
|
startOffset = range.startOffset,
|
endContainer = range.endContainer,
|
endOffset = range.endOffset,
|
toWrap = [],
|
examineNode = function ( node, exemplar ) {
|
// If the node is completely contained by the range then
|
// we're going to remove all formatting so ignore it.
|
if ( isNodeContainedInRange( range, node, false ) ) {
|
return;
|
}
|
|
var isText = ( node.nodeType === TEXT_NODE ),
|
child, next;
|
|
// If not at least partially contained, wrap entire contents
|
// in a clone of the tag we're removing and we're done.
|
if ( !isNodeContainedInRange( range, node, true ) ) {
|
// Ignore bookmarks and empty text nodes
|
if ( node.nodeName !== 'INPUT' &&
|
( !isText || node.data ) ) {
|
toWrap.push([ exemplar, node ]);
|
}
|
return;
|
}
|
|
// Split any partially selected text nodes.
|
if ( isText ) {
|
if ( node === endContainer && endOffset !== node.length ) {
|
toWrap.push([ exemplar, node.splitText( endOffset ) ]);
|
}
|
if ( node === startContainer && startOffset ) {
|
node.splitText( startOffset );
|
toWrap.push([ exemplar, node ]);
|
}
|
}
|
// If not a text node, recurse onto all children.
|
// Beware, the tree may be rewritten with each call
|
// to examineNode, hence find the next sibling first.
|
else {
|
for ( child = node.firstChild; child; child = next ) {
|
next = child.nextSibling;
|
examineNode( child, exemplar );
|
}
|
}
|
},
|
formatTags = Array.prototype.filter.call(
|
root.getElementsByTagName( tag ), function ( el ) {
|
return isNodeContainedInRange( range, el, true ) &&
|
hasTagAttributes( el, tag, attributes );
|
}
|
);
|
|
if ( !partial ) {
|
formatTags.forEach( function ( node ) {
|
examineNode( node, node );
|
});
|
}
|
|
// Now wrap unselected nodes in the tag
|
toWrap.forEach( function ( item ) {
|
// [ exemplar, node ] tuple
|
var el = item[0].cloneNode( false ),
|
node = item[1];
|
replaceWith( node, el );
|
el.appendChild( node );
|
});
|
// and remove old formatting tags.
|
formatTags.forEach( function ( el ) {
|
replaceWith( el, empty( el ) );
|
});
|
|
// Merge adjacent inlines:
|
this._getRangeAndRemoveBookmark( range );
|
if ( fixer ) {
|
range.collapse( false );
|
}
|
mergeInlines( root, range );
|
|
return range;
|
};
|
|
proto.changeFormat = function ( add, remove, range, partial ) {
|
// Normalise the arguments and get selection
|
if ( !range && !( range = this.getSelection() ) ) {
|
return this;
|
}
|
|
// Save undo checkpoint
|
this.saveUndoState( range );
|
|
if ( remove ) {
|
range = this._removeFormat( remove.tag.toUpperCase(),
|
remove.attributes || {}, range, partial );
|
}
|
if ( add ) {
|
range = this._addFormat( add.tag.toUpperCase(),
|
add.attributes || {}, range );
|
}
|
|
this.setSelection( range );
|
this._updatePath( range, true );
|
|
// We're not still in an undo state
|
if ( !canObserveMutations ) {
|
this._docWasChanged();
|
}
|
|
return this;
|
};
|
|
// --- Block formatting ---
|
|
var tagAfterSplit = {
|
DT: 'DD',
|
DD: 'DT',
|
LI: 'LI',
|
PRE: 'PRE'
|
};
|
|
var splitBlock = function ( self, block, node, offset ) {
|
var splitTag = tagAfterSplit[ block.nodeName ],
|
splitProperties = null,
|
nodeAfterSplit = split( node, offset, block.parentNode, self._root ),
|
config = self._config;
|
|
if ( !splitTag ) {
|
splitTag = config.blockTag;
|
splitProperties = config.blockAttributes;
|
}
|
|
// Make sure the new node is the correct type.
|
if ( !hasTagAttributes( nodeAfterSplit, splitTag, splitProperties ) ) {
|
block = createElement( nodeAfterSplit.ownerDocument,
|
splitTag, splitProperties );
|
if ( nodeAfterSplit.dir ) {
|
block.dir = nodeAfterSplit.dir;
|
}
|
replaceWith( nodeAfterSplit, block );
|
block.appendChild( empty( nodeAfterSplit ) );
|
nodeAfterSplit = block;
|
}
|
return nodeAfterSplit;
|
};
|
|
proto.forEachBlock = function ( fn, mutates, range ) {
|
if ( !range && !( range = this.getSelection() ) ) {
|
return this;
|
}
|
|
// Save undo checkpoint
|
if ( mutates ) {
|
this.saveUndoState( range );
|
}
|
|
var root = this._root;
|
var start = getStartBlockOfRange( range, root );
|
var end = getEndBlockOfRange( range, root );
|
if ( start && end ) {
|
do {
|
if ( fn( start ) || start === end ) { break; }
|
} while ( start = getNextBlock( start, root ) );
|
}
|
|
if ( mutates ) {
|
this.setSelection( range );
|
|
// Path may have changed
|
this._updatePath( range, true );
|
|
// We're not still in an undo state
|
if ( !canObserveMutations ) {
|
this._docWasChanged();
|
}
|
}
|
return this;
|
};
|
|
proto.modifyBlocks = function ( modify, range ) {
|
if ( !range && !( range = this.getSelection() ) ) {
|
return this;
|
}
|
|
// 1. Save undo checkpoint and bookmark selection
|
this._recordUndoState( range, this._isInUndoState );
|
|
var root = this._root;
|
var frag;
|
|
// 2. Expand range to block boundaries
|
expandRangeToBlockBoundaries( range, root );
|
|
// 3. Remove range.
|
moveRangeBoundariesUpTree( range, root, root, root );
|
frag = extractContentsOfRange( range, root, root );
|
|
// 4. Modify tree of fragment and reinsert.
|
insertNodeInRange( range, modify.call( this, frag ) );
|
|
// 5. Merge containers at edges
|
if ( range.endOffset < range.endContainer.childNodes.length ) {
|
mergeContainers( range.endContainer.childNodes[ range.endOffset ], root );
|
}
|
mergeContainers( range.startContainer.childNodes[ range.startOffset ], root );
|
|
// 6. Restore selection
|
this._getRangeAndRemoveBookmark( range );
|
this.setSelection( range );
|
this._updatePath( range, true );
|
|
// 7. We're not still in an undo state
|
if ( !canObserveMutations ) {
|
this._docWasChanged();
|
}
|
|
return this;
|
};
|
|
var increaseBlockQuoteLevel = function ( frag ) {
|
return this.createElement( 'BLOCKQUOTE',
|
this._config.tagAttributes.blockquote, [
|
frag
|
]);
|
};
|
|
var decreaseBlockQuoteLevel = function ( frag ) {
|
var root = this._root;
|
var blockquotes = frag.querySelectorAll( 'blockquote' );
|
Array.prototype.filter.call( blockquotes, function ( el ) {
|
return !getNearest( el.parentNode, root, 'BLOCKQUOTE' );
|
}).forEach( function ( el ) {
|
replaceWith( el, empty( el ) );
|
});
|
return frag;
|
};
|
|
var removeBlockQuote = function (/* frag */) {
|
return this.createDefaultBlock([
|
this.createElement( 'INPUT', {
|
id: startSelectionId,
|
type: 'hidden'
|
}),
|
this.createElement( 'INPUT', {
|
id: endSelectionId,
|
type: 'hidden'
|
})
|
]);
|
};
|
|
var makeList = function ( self, frag, type ) {
|
var walker = getBlockWalker( frag, self._root ),
|
node, tag, prev, newLi,
|
tagAttributes = self._config.tagAttributes,
|
listAttrs = tagAttributes[ type.toLowerCase() ],
|
listItemAttrs = tagAttributes.li;
|
|
while ( node = walker.nextNode() ) {
|
if ( node.parentNode.nodeName === 'LI' ) {
|
node = node.parentNode;
|
walker.currentNode = node.lastChild;
|
}
|
if ( node.nodeName !== 'LI' ) {
|
newLi = self.createElement( 'LI', listItemAttrs );
|
if ( node.dir ) {
|
newLi.dir = node.dir;
|
}
|
|
// Have we replaced the previous block with a new <ul>/<ol>?
|
if ( ( prev = node.previousSibling ) && prev.nodeName === type ) {
|
prev.appendChild( newLi );
|
detach( node );
|
}
|
// Otherwise, replace this block with the <ul>/<ol>
|
else {
|
replaceWith(
|
node,
|
self.createElement( type, listAttrs, [
|
newLi
|
])
|
);
|
}
|
newLi.appendChild( empty( node ) );
|
walker.currentNode = newLi;
|
} else {
|
node = node.parentNode;
|
tag = node.nodeName;
|
if ( tag !== type && ( /^[OU]L$/.test( tag ) ) ) {
|
replaceWith( node,
|
self.createElement( type, listAttrs, [ empty( node ) ] )
|
);
|
}
|
}
|
}
|
};
|
|
var makeUnorderedList = function ( frag ) {
|
makeList( this, frag, 'UL' );
|
return frag;
|
};
|
|
var makeOrderedList = function ( frag ) {
|
makeList( this, frag, 'OL' );
|
return frag;
|
};
|
|
var removeList = function ( frag ) {
|
var lists = frag.querySelectorAll( 'UL, OL' ),
|
items = frag.querySelectorAll( 'LI' ),
|
root = this._root,
|
i, l, list, listFrag, item;
|
for ( i = 0, l = lists.length; i < l; i += 1 ) {
|
list = lists[i];
|
listFrag = empty( list );
|
fixContainer( listFrag, root );
|
replaceWith( list, listFrag );
|
}
|
|
for ( i = 0, l = items.length; i < l; i += 1 ) {
|
item = items[i];
|
if ( isBlock( item ) ) {
|
replaceWith( item,
|
this.createDefaultBlock([ empty( item ) ])
|
);
|
} else {
|
fixContainer( item, root );
|
replaceWith( item, empty( item ) );
|
}
|
}
|
return frag;
|
};
|
|
var getListSelection = function ( range, root ) {
|
// Get start+end li in single common ancestor
|
var list = range.commonAncestorContainer;
|
var startLi = range.startContainer;
|
var endLi = range.endContainer;
|
while ( list && list !== root && !/^[OU]L$/.test( list.nodeName ) ) {
|
list = list.parentNode;
|
}
|
if ( !list || list === root ) {
|
return null;
|
}
|
if ( startLi === list ) {
|
startLi = startLi.childNodes[ range.startOffset ];
|
}
|
if ( endLi === list ) {
|
endLi = endLi.childNodes[ range.endOffset ];
|
}
|
while ( startLi && startLi.parentNode !== list ) {
|
startLi = startLi.parentNode;
|
}
|
while ( endLi && endLi.parentNode !== list ) {
|
endLi = endLi.parentNode;
|
}
|
return [ list, startLi, endLi ];
|
};
|
|
proto.increaseListLevel = function ( range ) {
|
if ( !range && !( range = this.getSelection() ) ) {
|
return this.focus();
|
}
|
|
var root = this._root;
|
var listSelection = getListSelection( range, root );
|
if ( !listSelection ) {
|
return this.focus();
|
}
|
|
var list = listSelection[0];
|
var startLi = listSelection[1];
|
var endLi = listSelection[2];
|
if ( !startLi || startLi === list.firstChild ) {
|
return this.focus();
|
}
|
|
// Save undo checkpoint and bookmark selection
|
this._recordUndoState( range, this._isInUndoState );
|
|
// Increase list depth
|
var type = list.nodeName;
|
var newParent = startLi.previousSibling;
|
var listAttrs, next;
|
if ( newParent.nodeName !== type ) {
|
listAttrs = this._config.tagAttributes[ type.toLowerCase() ];
|
newParent = this.createElement( type, listAttrs );
|
list.insertBefore( newParent, startLi );
|
}
|
do {
|
next = startLi === endLi ? null : startLi.nextSibling;
|
newParent.appendChild( startLi );
|
} while ( ( startLi = next ) );
|
next = newParent.nextSibling;
|
if ( next ) {
|
mergeContainers( next, root );
|
}
|
|
// Restore selection
|
this._getRangeAndRemoveBookmark( range );
|
this.setSelection( range );
|
this._updatePath( range, true );
|
|
// We're not still in an undo state
|
if ( !canObserveMutations ) {
|
this._docWasChanged();
|
}
|
|
return this.focus();
|
};
|
|
proto.decreaseListLevel = function ( range ) {
|
if ( !range && !( range = this.getSelection() ) ) {
|
return this.focus();
|
}
|
|
var root = this._root;
|
var listSelection = getListSelection( range, root );
|
if ( !listSelection ) {
|
return this.focus();
|
}
|
|
var list = listSelection[0];
|
var startLi = listSelection[1];
|
var endLi = listSelection[2];
|
if ( !startLi ) {
|
startLi = list.firstChild;
|
}
|
if ( !endLi ) {
|
endLi = list.lastChild;
|
}
|
|
// Save undo checkpoint and bookmark selection
|
this._recordUndoState( range, this._isInUndoState );
|
|
// Find the new parent list node
|
var newParent = list.parentNode;
|
var next;
|
|
// Split list if necesary
|
var insertBefore = !endLi.nextSibling ?
|
list.nextSibling :
|
split( list, endLi.nextSibling, newParent, root );
|
|
if ( newParent !== root && newParent.nodeName === 'LI' ) {
|
newParent = newParent.parentNode;
|
while ( insertBefore ) {
|
next = insertBefore.nextSibling;
|
endLi.appendChild( insertBefore );
|
insertBefore = next;
|
}
|
insertBefore = list.parentNode.nextSibling;
|
}
|
|
var makeNotList = !/^[OU]L$/.test( newParent.nodeName );
|
do {
|
next = startLi === endLi ? null : startLi.nextSibling;
|
list.removeChild( startLi );
|
if ( makeNotList && startLi.nodeName === 'LI' ) {
|
startLi = this.createDefaultBlock([ empty( startLi ) ]);
|
}
|
newParent.insertBefore( startLi, insertBefore );
|
} while ( ( startLi = next ) );
|
|
if ( !list.firstChild ) {
|
detach( list );
|
}
|
|
if ( insertBefore ) {
|
mergeContainers( insertBefore, root );
|
}
|
|
// Restore selection
|
this._getRangeAndRemoveBookmark( range );
|
this.setSelection( range );
|
this._updatePath( range, true );
|
|
// We're not still in an undo state
|
if ( !canObserveMutations ) {
|
this._docWasChanged();
|
}
|
|
return this.focus();
|
};
|
|
proto._ensureBottomLine = function () {
|
var root = this._root;
|
var last = root.lastElementChild;
|
if ( !last ||
|
last.nodeName !== this._config.blockTag || !isBlock( last ) ) {
|
root.appendChild( this.createDefaultBlock() );
|
}
|
};
|
|
// --- Keyboard interaction ---
|
|
proto.setKeyHandler = function ( key, fn ) {
|
this._keyHandlers[ key ] = fn;
|
return this;
|
};
|
|
// --- Get/Set data ---
|
|
proto._getHTML = function () {
|
return this._root.innerHTML;
|
};
|
|
proto._setHTML = function ( html ) {
|
var root = this._root;
|
var node = root;
|
node.innerHTML = html;
|
do {
|
fixCursor( node, root );
|
} while ( node = getNextBlock( node, root ) );
|
this._ignoreChange = true;
|
};
|
|
proto.getHTML = function ( withBookMark ) {
|
var brs = [],
|
root, node, fixer, html, l, range;
|
if ( withBookMark && ( range = this.getSelection() ) ) {
|
this._saveRangeToBookmark( range );
|
}
|
if ( useTextFixer ) {
|
root = this._root;
|
node = root;
|
while ( node = getNextBlock( node, root ) ) {
|
if ( !node.textContent && !node.querySelector( 'BR' ) ) {
|
fixer = this.createElement( 'BR' );
|
node.appendChild( fixer );
|
brs.push( fixer );
|
}
|
}
|
}
|
html = this._getHTML().replace( /\u200B/g, '' );
|
if ( useTextFixer ) {
|
l = brs.length;
|
while ( l-- ) {
|
detach( brs[l] );
|
}
|
}
|
if ( range ) {
|
this._getRangeAndRemoveBookmark( range );
|
}
|
return html;
|
};
|
|
proto.setHTML = function ( html ) {
|
var config = this._config;
|
var sanitizeToDOMFragment = config.isSetHTMLSanitized ?
|
config.sanitizeToDOMFragment : null;
|
var root = this._root;
|
var div, frag, child;
|
|
// Parse HTML into DOM tree
|
if ( typeof sanitizeToDOMFragment === 'function' ) {
|
frag = sanitizeToDOMFragment( html, false, this );
|
} else {
|
div = this.createElement( 'DIV' );
|
div.innerHTML = html;
|
frag = this._doc.createDocumentFragment();
|
frag.appendChild( empty( div ) );
|
}
|
|
cleanTree( frag, config );
|
cleanupBRs( frag, root, false );
|
|
fixContainer( frag, root );
|
|
// Fix cursor
|
var node = frag;
|
while ( node = getNextBlock( node, root ) ) {
|
fixCursor( node, root );
|
}
|
|
// Don't fire an input event
|
this._ignoreChange = true;
|
|
// Remove existing root children
|
while ( child = root.lastChild ) {
|
root.removeChild( child );
|
}
|
|
// And insert new content
|
root.appendChild( frag );
|
fixCursor( root, root );
|
|
// Reset the undo stack
|
this._undoIndex = -1;
|
this._undoStack.length = 0;
|
this._undoStackLength = 0;
|
this._isInUndoState = false;
|
|
// Record undo state
|
var range = this._getRangeAndRemoveBookmark() ||
|
this.createRange( root.firstChild, 0 );
|
this.saveUndoState( range );
|
// IE will also set focus when selecting text so don't use
|
// setSelection. Instead, just store it in lastSelection, so if
|
// anything calls getSelection before first focus, we have a range
|
// to return.
|
this._lastSelection = range;
|
enableRestoreSelection.call( this );
|
this._updatePath( range, true );
|
|
return this;
|
};
|
|
proto.insertElement = function ( el, range ) {
|
if ( !range ) {
|
range = this.getSelection();
|
}
|
range.collapse( true );
|
if ( isInline( el ) ) {
|
insertNodeInRange( range, el );
|
range.setStartAfter( el );
|
} else {
|
// Get containing block node.
|
var root = this._root;
|
var splitNode = getStartBlockOfRange( range, root ) || root;
|
var parent, nodeAfterSplit;
|
// While at end of container node, move up DOM tree.
|
while ( splitNode !== root && !splitNode.nextSibling ) {
|
splitNode = splitNode.parentNode;
|
}
|
// If in the middle of a container node, split up to root.
|
if ( splitNode !== root ) {
|
parent = splitNode.parentNode;
|
nodeAfterSplit = split( parent, splitNode.nextSibling, root, root );
|
}
|
if ( nodeAfterSplit ) {
|
root.insertBefore( el, nodeAfterSplit );
|
} else {
|
root.appendChild( el );
|
// Insert blank line below block.
|
nodeAfterSplit = this.createDefaultBlock();
|
root.appendChild( nodeAfterSplit );
|
}
|
range.setStart( nodeAfterSplit, 0 );
|
range.setEnd( nodeAfterSplit, 0 );
|
moveRangeBoundariesDownTree( range );
|
}
|
this.focus();
|
this.setSelection( range );
|
this._updatePath( range );
|
|
if ( !canObserveMutations ) {
|
this._docWasChanged();
|
}
|
|
return this;
|
};
|
|
proto.insertImage = function ( src, attributes ) {
|
var img = this.createElement( 'IMG', mergeObjects({
|
src: src
|
}, attributes, true ));
|
this.insertElement( img );
|
return img;
|
};
|
|
proto.linkRegExp = /\b((?:(?:ht|f)tps?:\/\/|www\d{0,3}[.]|[a-z0-9.\-]+[.][a-z]{2,}\/)(?:[^\s()<>]+|\([^\s()<>]+\))+(?:\((?:[^\s()<>]+|(?:\([^\s()<>]+\)))*\)|[^\s`!()\[\]{};:'".,<>?«»“”‘’]))|([\w\-.%+]+@(?:[\w\-]+\.)+[A-Z]{2,}\b)(?:\?[^&?\s]+=[^&?\s]+(?:&[^&?\s]+=[^&?\s]+)*)?/i;
|
|
var addLinks = function ( frag, root, self ) {
|
var doc = frag.ownerDocument;
|
var walker = new TreeWalker( frag, SHOW_TEXT, function ( node ) {
|
return !getNearest( node, root, 'A' );
|
});
|
var linkRegExp = self.linkRegExp;
|
var defaultAttributes = self._config.tagAttributes.a;
|
var node, data, parent, match, index, endIndex, child;
|
if ( !linkRegExp ) {
|
return;
|
}
|
while (( node = walker.nextNode() )) {
|
data = node.data;
|
parent = node.parentNode;
|
while (( match = linkRegExp.exec( data ) )) {
|
index = match.index;
|
endIndex = index + match[0].length;
|
if ( index ) {
|
child = doc.createTextNode( data.slice( 0, index ) );
|
parent.insertBefore( child, node );
|
}
|
child = self.createElement( 'A', mergeObjects({
|
href: match[1] ?
|
/^(?:ht|f)tps?:/i.test( match[1] ) ?
|
match[1] :
|
'http://' + match[1] :
|
'mailto:' + match[0]
|
}, defaultAttributes, false ));
|
child.textContent = data.slice( index, endIndex );
|
parent.insertBefore( child, node );
|
node.data = data = data.slice( endIndex );
|
}
|
}
|
};
|
|
// Insert HTML at the cursor location. If the selection is not collapsed
|
// insertTreeFragmentIntoRange will delete the selection so that it is replaced
|
// by the html being inserted.
|
proto.insertHTML = function ( html, isPaste ) {
|
var config = this._config;
|
var sanitizeToDOMFragment = config.isInsertedHTMLSanitized ?
|
config.sanitizeToDOMFragment : null;
|
var range = this.getSelection();
|
var doc = this._doc;
|
var startFragmentIndex, endFragmentIndex;
|
var div, frag, root, node, event;
|
|
// Edge doesn't just copy the fragment, but includes the surrounding guff
|
// including the full <head> of the page. Need to strip this out. If
|
// available use DOMPurify to parse and sanitise.
|
if ( typeof sanitizeToDOMFragment === 'function' ) {
|
frag = sanitizeToDOMFragment( html, isPaste, this );
|
} else {
|
if ( isPaste ) {
|
startFragmentIndex = html.indexOf( '<!--StartFragment-->' );
|
endFragmentIndex = html.lastIndexOf( '<!--EndFragment-->' );
|
if ( startFragmentIndex > -1 && endFragmentIndex > -1 ) {
|
html = html.slice( startFragmentIndex + 20, endFragmentIndex );
|
}
|
}
|
// Wrap with <tr> if html contains dangling <td> tags
|
if ( /<\/td>((?!<\/tr>)[\s\S])*$/i.test( html ) ) {
|
html = '<TR>' + html + '</TR>';
|
}
|
// Wrap with <table> if html contains dangling <tr> tags
|
if ( /<\/tr>((?!<\/table>)[\s\S])*$/i.test( html ) ) {
|
html = '<TABLE>' + html + '</TABLE>';
|
}
|
// Parse HTML into DOM tree
|
div = this.createElement( 'DIV' );
|
div.innerHTML = html;
|
frag = doc.createDocumentFragment();
|
frag.appendChild( empty( div ) );
|
}
|
|
// Record undo checkpoint
|
this.saveUndoState( range );
|
|
try {
|
root = this._root;
|
node = frag;
|
event = {
|
fragment: frag,
|
preventDefault: function () {
|
this.defaultPrevented = true;
|
},
|
defaultPrevented: false
|
};
|
|
addLinks( frag, frag, this );
|
cleanTree( frag, config );
|
cleanupBRs( frag, root, false );
|
removeEmptyInlines( frag );
|
frag.normalize();
|
|
while ( node = getNextBlock( node, frag ) ) {
|
fixCursor( node, root );
|
}
|
|
if ( isPaste ) {
|
this.fireEvent( 'willPaste', event );
|
}
|
|
if ( !event.defaultPrevented ) {
|
insertTreeFragmentIntoRange( range, event.fragment, root );
|
if ( !canObserveMutations ) {
|
this._docWasChanged();
|
}
|
range.collapse( false );
|
this._ensureBottomLine();
|
}
|
|
this.setSelection( range );
|
this._updatePath( range, true );
|
// Safari sometimes loses focus after paste. Weird.
|
if ( isPaste ) {
|
this.focus();
|
}
|
} catch ( error ) {
|
this.didError( error );
|
}
|
return this;
|
};
|
|
var escapeHTMLFragement = function ( text ) {
|
return text.split( '&' ).join( '&' )
|
.split( '<' ).join( '<' )
|
.split( '>' ).join( '>' )
|
.split( '"' ).join( '"' );
|
};
|
|
proto.insertPlainText = function ( plainText, isPaste ) {
|
var range = this.getSelection();
|
if ( range.collapsed &&
|
getNearest( range.startContainer, this._root, 'PRE' ) ) {
|
var node = range.startContainer;
|
var offset = range.startOffset;
|
var text, event;
|
if ( !node || node.nodeType !== TEXT_NODE ) {
|
text = this._doc.createTextNode( '' );
|
node.insertBefore( text, node.childNodes[ offset ] );
|
node = text;
|
offset = 0;
|
}
|
event = {
|
text: plainText,
|
preventDefault: function () {
|
this.defaultPrevented = true;
|
},
|
defaultPrevented: false
|
};
|
if ( isPaste ) {
|
this.fireEvent( 'willPaste', event );
|
}
|
|
if ( !event.defaultPrevented ) {
|
plainText = event.text;
|
node.insertData( offset, plainText );
|
range.setStart( node, offset + plainText.length );
|
range.collapse( true );
|
}
|
this.setSelection( range );
|
return this;
|
}
|
var lines = plainText.split( '\n' );
|
var config = this._config;
|
var tag = config.blockTag;
|
var attributes = config.blockAttributes;
|
var closeBlock = '</' + tag + '>';
|
var openBlock = '<' + tag;
|
var attr, i, l, line;
|
|
for ( attr in attributes ) {
|
openBlock += ' ' + attr + '="' +
|
escapeHTMLFragement( attributes[ attr ] ) +
|
'"';
|
}
|
openBlock += '>';
|
|
for ( i = 0, l = lines.length; i < l; i += 1 ) {
|
line = lines[i];
|
line = escapeHTMLFragement( line ).replace( / (?= )/g, ' ' );
|
// Wrap each line in <div></div>
|
lines[i] = openBlock + ( line || '<BR>' ) + closeBlock;
|
}
|
return this.insertHTML( lines.join( '' ), isPaste );
|
};
|
|
// --- Formatting ---
|
|
var command = function ( method, arg, arg2 ) {
|
return function () {
|
this[ method ]( arg, arg2 );
|
return this.focus();
|
};
|
};
|
|
proto.addStyles = function ( styles ) {
|
if ( styles ) {
|
var head = this._doc.documentElement.firstChild,
|
style = this.createElement( 'STYLE', {
|
type: 'text/css'
|
});
|
style.appendChild( this._doc.createTextNode( styles ) );
|
head.appendChild( style );
|
}
|
return this;
|
};
|
|
proto.bold = command( 'changeFormat', { tag: 'B' } );
|
proto.italic = command( 'changeFormat', { tag: 'I' } );
|
proto.underline = command( 'changeFormat', { tag: 'U' } );
|
proto.strikethrough = command( 'changeFormat', { tag: 'S' } );
|
proto.subscript = command( 'changeFormat', { tag: 'SUB' }, { tag: 'SUP' } );
|
proto.superscript = command( 'changeFormat', { tag: 'SUP' }, { tag: 'SUB' } );
|
|
proto.removeBold = command( 'changeFormat', null, { tag: 'B' } );
|
proto.removeItalic = command( 'changeFormat', null, { tag: 'I' } );
|
proto.removeUnderline = command( 'changeFormat', null, { tag: 'U' } );
|
proto.removeStrikethrough = command( 'changeFormat', null, { tag: 'S' } );
|
proto.removeSubscript = command( 'changeFormat', null, { tag: 'SUB' } );
|
proto.removeSuperscript = command( 'changeFormat', null, { tag: 'SUP' } );
|
|
proto.makeLink = function ( url, attributes ) {
|
var range = this.getSelection();
|
if ( range.collapsed ) {
|
var protocolEnd = url.indexOf( ':' ) + 1;
|
if ( protocolEnd ) {
|
while ( url[ protocolEnd ] === '/' ) { protocolEnd += 1; }
|
}
|
insertNodeInRange(
|
range,
|
this._doc.createTextNode( url.slice( protocolEnd ) )
|
);
|
}
|
attributes = mergeObjects(
|
mergeObjects({
|
href: url
|
}, attributes, true ),
|
this._config.tagAttributes.a,
|
false
|
);
|
|
this.changeFormat({
|
tag: 'A',
|
attributes: attributes
|
}, {
|
tag: 'A'
|
}, range );
|
return this.focus();
|
};
|
proto.removeLink = function () {
|
this.changeFormat( null, {
|
tag: 'A'
|
}, this.getSelection(), true );
|
return this.focus();
|
};
|
|
proto.setFontFace = function ( name ) {
|
var className = this._config.classNames.fontFamily;
|
this.changeFormat( name ? {
|
tag: 'SPAN',
|
attributes: {
|
'class': className,
|
style: 'font-family: ' + name + ', sans-serif;'
|
}
|
} : null, {
|
tag: 'SPAN',
|
attributes: { 'class': className }
|
});
|
return this.focus();
|
};
|
proto.setFontSize = function ( size ) {
|
var className = this._config.classNames.fontSize;
|
this.changeFormat( size ? {
|
tag: 'SPAN',
|
attributes: {
|
'class': className,
|
style: 'font-size: ' +
|
( typeof size === 'number' ? size + 'px' : size )
|
}
|
} : null, {
|
tag: 'SPAN',
|
attributes: { 'class': className }
|
});
|
return this.focus();
|
};
|
|
proto.setTextColour = function ( colour ) {
|
var className = this._config.classNames.colour;
|
this.changeFormat( colour ? {
|
tag: 'SPAN',
|
attributes: {
|
'class': className,
|
style: 'color:' + colour
|
}
|
} : null, {
|
tag: 'SPAN',
|
attributes: { 'class': className }
|
});
|
return this.focus();
|
};
|
|
proto.setHighlightColour = function ( colour ) {
|
var className = this._config.classNames.highlight;
|
this.changeFormat( colour ? {
|
tag: 'SPAN',
|
attributes: {
|
'class': className,
|
style: 'background-color:' + colour
|
}
|
} : colour, {
|
tag: 'SPAN',
|
attributes: { 'class': className }
|
});
|
return this.focus();
|
};
|
|
proto.setTextAlignment = function ( alignment ) {
|
this.forEachBlock( function ( block ) {
|
var className = block.className
|
.split( /\s+/ )
|
.filter( function ( klass ) {
|
return !!klass && !/^align/.test( klass );
|
})
|
.join( ' ' );
|
if ( alignment ) {
|
block.className = className + ' align-' + alignment;
|
block.style.textAlign = alignment;
|
} else {
|
block.className = className;
|
block.style.textAlign = '';
|
}
|
}, true );
|
return this.focus();
|
};
|
|
proto.setTextDirection = function ( direction ) {
|
this.forEachBlock( function ( block ) {
|
if ( direction ) {
|
block.dir = direction;
|
} else {
|
block.removeAttribute( 'dir' );
|
}
|
}, true );
|
return this.focus();
|
};
|
|
// ---
|
|
var addPre = function ( frag ) {
|
var root = this._root;
|
var document = this._doc;
|
var output = document.createDocumentFragment();
|
var walker = getBlockWalker( frag, root );
|
var node;
|
// 1. Extract inline content; drop all blocks and contains.
|
while (( node = walker.nextNode() )) {
|
// 2. Replace <br> with \n in content
|
var nodes = node.querySelectorAll( 'BR' );
|
var brBreaksLine = [];
|
var l = nodes.length;
|
var i, br;
|
|
// Must calculate whether the <br> breaks a line first, because if we
|
// have two <br>s next to each other, after the first one is converted
|
// to a block split, the second will be at the end of a block and
|
// therefore seem to not be a line break. But in its original context it
|
// was, so we should also convert it to a block split.
|
for ( i = 0; i < l; i += 1 ) {
|
brBreaksLine[i] = isLineBreak( nodes[i], false );
|
}
|
while ( l-- ) {
|
br = nodes[l];
|
if ( !brBreaksLine[l] ) {
|
detach( br );
|
} else {
|
replaceWith( br, document.createTextNode( '\n' ) );
|
}
|
}
|
// 3. Remove <code>; its format clashes with <pre>
|
nodes = node.querySelectorAll( 'CODE' );
|
l = nodes.length;
|
while ( l-- ) {
|
detach( nodes[l] );
|
}
|
if ( output.childNodes.length ) {
|
output.appendChild( document.createTextNode( '\n' ) );
|
}
|
output.appendChild( empty( node ) );
|
}
|
// 4. Replace nbsp with regular sp
|
walker = new TreeWalker( output, SHOW_TEXT );
|
while (( node = walker.nextNode() )) {
|
node.data = node.data.replace( / /g, ' ' ); // nbsp -> sp
|
}
|
output.normalize();
|
return fixCursor( this.createElement( 'PRE',
|
this._config.tagAttributes.pre, [
|
output
|
]), root );
|
};
|
|
var removePre = function ( frag ) {
|
var document = this._doc;
|
var root = this._root;
|
var pres = frag.querySelectorAll( 'PRE' );
|
var l = pres.length;
|
var pre, walker, node, value, contents, index;
|
while ( l-- ) {
|
pre = pres[l];
|
walker = new TreeWalker( pre, SHOW_TEXT );
|
while (( node = walker.nextNode() )) {
|
value = node.data;
|
value = value.replace( / (?= )/g, ' ' ); // sp -> nbsp
|
contents = document.createDocumentFragment();
|
while (( index = value.indexOf( '\n' ) ) > -1 ) {
|
contents.appendChild(
|
document.createTextNode( value.slice( 0, index ) )
|
);
|
contents.appendChild( document.createElement( 'BR' ) );
|
value = value.slice( index + 1 );
|
}
|
node.parentNode.insertBefore( contents, node );
|
node.data = value;
|
}
|
fixContainer( pre, root );
|
replaceWith( pre, empty( pre ) );
|
}
|
return frag;
|
};
|
|
proto.code = function () {
|
var range = this.getSelection();
|
if ( range.collapsed || isContainer( range.commonAncestorContainer ) ) {
|
this.modifyBlocks( addPre, range );
|
} else {
|
this.changeFormat({
|
tag: 'CODE',
|
attributes: this._config.tagAttributes.code
|
}, null, range );
|
}
|
return this.focus();
|
};
|
|
proto.removeCode = function () {
|
var range = this.getSelection();
|
var ancestor = range.commonAncestorContainer;
|
var inPre = getNearest( ancestor, this._root, 'PRE' );
|
if ( inPre ) {
|
this.modifyBlocks( removePre, range );
|
} else {
|
this.changeFormat( null, { tag: 'CODE' }, range );
|
}
|
return this.focus();
|
};
|
|
proto.toggleCode = function () {
|
if ( this.hasFormat( 'PRE' ) || this.hasFormat( 'CODE' ) ) {
|
this.removeCode();
|
} else {
|
this.code();
|
}
|
return this;
|
};
|
|
// ---
|
|
function removeFormatting ( self, root, clean ) {
|
var node, next;
|
for ( node = root.firstChild; node; node = next ) {
|
next = node.nextSibling;
|
if ( isInline( node ) ) {
|
if ( node.nodeType === TEXT_NODE || node.nodeName === 'BR' || node.nodeName === 'IMG' ) {
|
clean.appendChild( node );
|
continue;
|
}
|
} else if ( isBlock( node ) ) {
|
clean.appendChild( self.createDefaultBlock([
|
removeFormatting(
|
self, node, self._doc.createDocumentFragment() )
|
]));
|
continue;
|
}
|
removeFormatting( self, node, clean );
|
}
|
return clean;
|
}
|
|
proto.removeAllFormatting = function ( range ) {
|
if ( !range && !( range = this.getSelection() ) || range.collapsed ) {
|
return this;
|
}
|
|
var root = this._root;
|
var stopNode = range.commonAncestorContainer;
|
while ( stopNode && !isBlock( stopNode ) ) {
|
stopNode = stopNode.parentNode;
|
}
|
if ( !stopNode ) {
|
expandRangeToBlockBoundaries( range, root );
|
stopNode = root;
|
}
|
if ( stopNode.nodeType === TEXT_NODE ) {
|
return this;
|
}
|
|
// Record undo point
|
this.saveUndoState( range );
|
|
// Avoid splitting where we're already at edges.
|
moveRangeBoundariesUpTree( range, stopNode, stopNode, root );
|
|
// Split the selection up to the block, or if whole selection in same
|
// block, expand range boundaries to ends of block and split up to root.
|
var doc = stopNode.ownerDocument;
|
var startContainer = range.startContainer;
|
var startOffset = range.startOffset;
|
var endContainer = range.endContainer;
|
var endOffset = range.endOffset;
|
|
// Split end point first to avoid problems when end and start
|
// in same container.
|
var formattedNodes = doc.createDocumentFragment();
|
var cleanNodes = doc.createDocumentFragment();
|
var nodeAfterSplit = split( endContainer, endOffset, stopNode, root );
|
var nodeInSplit = split( startContainer, startOffset, stopNode, root );
|
var nextNode, childNodes;
|
|
// Then replace contents in split with a cleaned version of the same:
|
// blocks become default blocks, text and leaf nodes survive, everything
|
// else is obliterated.
|
while ( nodeInSplit !== nodeAfterSplit ) {
|
nextNode = nodeInSplit.nextSibling;
|
formattedNodes.appendChild( nodeInSplit );
|
nodeInSplit = nextNode;
|
}
|
removeFormatting( this, formattedNodes, cleanNodes );
|
cleanNodes.normalize();
|
nodeInSplit = cleanNodes.firstChild;
|
nextNode = cleanNodes.lastChild;
|
|
// Restore selection
|
childNodes = stopNode.childNodes;
|
if ( nodeInSplit ) {
|
stopNode.insertBefore( cleanNodes, nodeAfterSplit );
|
startOffset = indexOf.call( childNodes, nodeInSplit );
|
endOffset = indexOf.call( childNodes, nextNode ) + 1;
|
} else {
|
startOffset = indexOf.call( childNodes, nodeAfterSplit );
|
endOffset = startOffset;
|
}
|
|
// Merge text nodes at edges, if possible
|
range.setStart( stopNode, startOffset );
|
range.setEnd( stopNode, endOffset );
|
mergeInlines( stopNode, range );
|
|
// And move back down the tree
|
moveRangeBoundariesDownTree( range );
|
|
this.setSelection( range );
|
this._updatePath( range, true );
|
|
return this.focus();
|
};
|
|
proto.increaseQuoteLevel = command( 'modifyBlocks', increaseBlockQuoteLevel );
|
proto.decreaseQuoteLevel = command( 'modifyBlocks', decreaseBlockQuoteLevel );
|
|
proto.makeUnorderedList = command( 'modifyBlocks', makeUnorderedList );
|
proto.makeOrderedList = command( 'modifyBlocks', makeOrderedList );
|
proto.removeList = command( 'modifyBlocks', removeList );
|
|
// Node.js exports
|
Squire.isInline = isInline;
|
Squire.isBlock = isBlock;
|
Squire.isContainer = isContainer;
|
Squire.getBlockWalker = getBlockWalker;
|
Squire.getPreviousBlock = getPreviousBlock;
|
Squire.getNextBlock = getNextBlock;
|
Squire.areAlike = areAlike;
|
Squire.hasTagAttributes = hasTagAttributes;
|
Squire.getNearest = getNearest;
|
Squire.isOrContains = isOrContains;
|
Squire.detach = detach;
|
Squire.replaceWith = replaceWith;
|
Squire.empty = empty;
|
|
// Range.js exports
|
Squire.getNodeBefore = getNodeBefore;
|
Squire.getNodeAfter = getNodeAfter;
|
Squire.insertNodeInRange = insertNodeInRange;
|
Squire.extractContentsOfRange = extractContentsOfRange;
|
Squire.deleteContentsOfRange = deleteContentsOfRange;
|
Squire.insertTreeFragmentIntoRange = insertTreeFragmentIntoRange;
|
Squire.isNodeContainedInRange = isNodeContainedInRange;
|
Squire.moveRangeBoundariesDownTree = moveRangeBoundariesDownTree;
|
Squire.moveRangeBoundariesUpTree = moveRangeBoundariesUpTree;
|
Squire.getStartBlockOfRange = getStartBlockOfRange;
|
Squire.getEndBlockOfRange = getEndBlockOfRange;
|
Squire.contentWalker = contentWalker;
|
Squire.rangeDoesStartAtBlockBoundary = rangeDoesStartAtBlockBoundary;
|
Squire.rangeDoesEndAtBlockBoundary = rangeDoesEndAtBlockBoundary;
|
Squire.expandRangeToBlockBoundaries = expandRangeToBlockBoundaries;
|
|
// Clipboard.js exports
|
Squire.onPaste = onPaste;
|
|
// Editor.js exports
|
Squire.addLinks = addLinks;
|
Squire.splitBlock = splitBlock;
|
Squire.startSelectionId = startSelectionId;
|
Squire.endSelectionId = endSelectionId;
|
|
if ( typeof exports === 'object' ) {
|
module.exports = Squire;
|
} else if ( typeof define === 'function' && define.amd ) {
|
define( function () {
|
return Squire;
|
});
|
} else {
|
win.Squire = Squire;
|
|
if ( top !== win &&
|
doc.documentElement.getAttribute( 'data-squireinit' ) === 'true' ) {
|
win.editor = new Squire( doc );
|
if ( win.onEditorLoad ) {
|
win.onEditorLoad( win.editor );
|
win.onEditorLoad = null;
|
}
|
}
|
}
|
|
}( document ) );
|
