import { runInOp } from "../display/operations.js"
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import { ensureCursorVisible } from "../display/scrolling.js"
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import { Pos } from "../line/pos.js"
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import { getLine } from "../line/utils_line.js"
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import { makeChange } from "../model/changes.js"
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import { ios, webkit } from "../util/browser.js"
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import { elt } from "../util/dom.js"
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import { lst, map } from "../util/misc.js"
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import { signalLater } from "../util/operation_group.js"
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import { splitLinesAuto } from "../util/feature_detection.js"
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import { indentLine } from "./indent.js"
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// This will be set to a {lineWise: bool, text: [string]} object, so
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// that, when pasting, we know what kind of selections the copied
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// text was made out of.
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export let lastCopied = null
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export function setLastCopied(newLastCopied) {
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lastCopied = newLastCopied
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}
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export function applyTextInput(cm, inserted, deleted, sel, origin) {
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let doc = cm.doc
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cm.display.shift = false
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if (!sel) sel = doc.sel
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let recent = +new Date - 200
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let paste = origin == "paste" || cm.state.pasteIncoming > recent
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let textLines = splitLinesAuto(inserted), multiPaste = null
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// When pasting N lines into N selections, insert one line per selection
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if (paste && sel.ranges.length > 1) {
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if (lastCopied && lastCopied.text.join("\n") == inserted) {
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if (sel.ranges.length % lastCopied.text.length == 0) {
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multiPaste = []
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for (let i = 0; i < lastCopied.text.length; i++)
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multiPaste.push(doc.splitLines(lastCopied.text[i]))
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}
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} else if (textLines.length == sel.ranges.length && cm.options.pasteLinesPerSelection) {
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multiPaste = map(textLines, l => [l])
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}
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}
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let updateInput = cm.curOp.updateInput
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// Normal behavior is to insert the new text into every selection
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for (let i = sel.ranges.length - 1; i >= 0; i--) {
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let range = sel.ranges[i]
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let from = range.from(), to = range.to()
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if (range.empty()) {
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if (deleted && deleted > 0) // Handle deletion
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from = Pos(from.line, from.ch - deleted)
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else if (cm.state.overwrite && !paste) // Handle overwrite
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to = Pos(to.line, Math.min(getLine(doc, to.line).text.length, to.ch + lst(textLines).length))
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else if (paste && lastCopied && lastCopied.lineWise && lastCopied.text.join("\n") == inserted)
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from = to = Pos(from.line, 0)
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}
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let changeEvent = {from: from, to: to, text: multiPaste ? multiPaste[i % multiPaste.length] : textLines,
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origin: origin || (paste ? "paste" : cm.state.cutIncoming > recent ? "cut" : "+input")}
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makeChange(cm.doc, changeEvent)
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signalLater(cm, "inputRead", cm, changeEvent)
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}
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if (inserted && !paste)
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triggerElectric(cm, inserted)
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ensureCursorVisible(cm)
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if (cm.curOp.updateInput < 2) cm.curOp.updateInput = updateInput
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cm.curOp.typing = true
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cm.state.pasteIncoming = cm.state.cutIncoming = -1
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}
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export function handlePaste(e, cm) {
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let pasted = e.clipboardData && e.clipboardData.getData("Text")
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if (pasted) {
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e.preventDefault()
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if (!cm.isReadOnly() && !cm.options.disableInput)
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runInOp(cm, () => applyTextInput(cm, pasted, 0, null, "paste"))
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return true
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}
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}
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export function triggerElectric(cm, inserted) {
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// When an 'electric' character is inserted, immediately trigger a reindent
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if (!cm.options.electricChars || !cm.options.smartIndent) return
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let sel = cm.doc.sel
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for (let i = sel.ranges.length - 1; i >= 0; i--) {
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let range = sel.ranges[i]
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if (range.head.ch > 100 || (i && sel.ranges[i - 1].head.line == range.head.line)) continue
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let mode = cm.getModeAt(range.head)
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let indented = false
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if (mode.electricChars) {
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for (let j = 0; j < mode.electricChars.length; j++)
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if (inserted.indexOf(mode.electricChars.charAt(j)) > -1) {
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indented = indentLine(cm, range.head.line, "smart")
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break
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}
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} else if (mode.electricInput) {
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if (mode.electricInput.test(getLine(cm.doc, range.head.line).text.slice(0, range.head.ch)))
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indented = indentLine(cm, range.head.line, "smart")
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}
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if (indented) signalLater(cm, "electricInput", cm, range.head.line)
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}
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}
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export function copyableRanges(cm) {
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let text = [], ranges = []
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for (let i = 0; i < cm.doc.sel.ranges.length; i++) {
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let line = cm.doc.sel.ranges[i].head.line
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let lineRange = {anchor: Pos(line, 0), head: Pos(line + 1, 0)}
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ranges.push(lineRange)
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text.push(cm.getRange(lineRange.anchor, lineRange.head))
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}
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return {text: text, ranges: ranges}
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}
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export function disableBrowserMagic(field, spellcheck, autocorrect, autocapitalize) {
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field.setAttribute("autocorrect", !!autocorrect)
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field.setAttribute("autocapitalize", !!autocapitalize)
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field.setAttribute("spellcheck", !!spellcheck)
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}
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export function hiddenTextarea() {
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let te = elt("textarea", null, null, "position: absolute; bottom: -1em; padding: 0; width: 1px; height: 1em; outline: none")
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let div = elt("div", [te], null, "overflow: hidden; position: relative; width: 3px; height: 0px;")
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// The textarea is kept positioned near the cursor to prevent the
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// fact that it'll be scrolled into view on input from scrolling
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// our fake cursor out of view. On webkit, when wrap=off, paste is
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// very slow. So make the area wide instead.
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if (webkit) te.style.width = "1000px"
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else te.setAttribute("wrap", "off")
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// If border: 0; -- iOS fails to open keyboard (issue #1287)
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if (ios) te.style.border = "1px solid black"
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disableBrowserMagic(te)
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return div
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}
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