diff options
Diffstat (limited to 'devtools/client/sourceeditor/codemirror/addon/edit/closebrackets.js')
-rw-r--r-- | devtools/client/sourceeditor/codemirror/addon/edit/closebrackets.js | 195 |
1 files changed, 195 insertions, 0 deletions
diff --git a/devtools/client/sourceeditor/codemirror/addon/edit/closebrackets.js b/devtools/client/sourceeditor/codemirror/addon/edit/closebrackets.js new file mode 100644 index 000000000..af7fce2a8 --- /dev/null +++ b/devtools/client/sourceeditor/codemirror/addon/edit/closebrackets.js @@ -0,0 +1,195 @@ +// CodeMirror, copyright (c) by Marijn Haverbeke and others +// Distributed under an MIT license: http://codemirror.net/LICENSE + +(function(mod) { + if (typeof exports == "object" && typeof module == "object") // CommonJS + mod(require("../../lib/codemirror")); + else if (typeof define == "function" && define.amd) // AMD + define(["../../lib/codemirror"], mod); + else // Plain browser env + mod(CodeMirror); +})(function(CodeMirror) { + var defaults = { + pairs: "()[]{}''\"\"", + triples: "", + explode: "[]{}" + }; + + var Pos = CodeMirror.Pos; + + CodeMirror.defineOption("autoCloseBrackets", false, function(cm, val, old) { + if (old && old != CodeMirror.Init) { + cm.removeKeyMap(keyMap); + cm.state.closeBrackets = null; + } + if (val) { + cm.state.closeBrackets = val; + cm.addKeyMap(keyMap); + } + }); + + function getOption(conf, name) { + if (name == "pairs" && typeof conf == "string") return conf; + if (typeof conf == "object" && conf[name] != null) return conf[name]; + return defaults[name]; + } + + var bind = defaults.pairs + "`"; + var keyMap = {Backspace: handleBackspace, Enter: handleEnter}; + for (var i = 0; i < bind.length; i++) + keyMap["'" + bind.charAt(i) + "'"] = handler(bind.charAt(i)); + + function handler(ch) { + return function(cm) { return handleChar(cm, ch); }; + } + + function getConfig(cm) { + var deflt = cm.state.closeBrackets; + if (!deflt) return null; + var mode = cm.getModeAt(cm.getCursor()); + return mode.closeBrackets || deflt; + } + + function handleBackspace(cm) { + var conf = getConfig(cm); + if (!conf || cm.getOption("disableInput")) return CodeMirror.Pass; + + var pairs = getOption(conf, "pairs"); + var ranges = cm.listSelections(); + for (var i = 0; i < ranges.length; i++) { + if (!ranges[i].empty()) return CodeMirror.Pass; + var around = charsAround(cm, ranges[i].head); + if (!around || pairs.indexOf(around) % 2 != 0) return CodeMirror.Pass; + } + for (var i = ranges.length - 1; i >= 0; i--) { + var cur = ranges[i].head; + cm.replaceRange("", Pos(cur.line, cur.ch - 1), Pos(cur.line, cur.ch + 1), "+delete"); + } + } + + function handleEnter(cm) { + var conf = getConfig(cm); + var explode = conf && getOption(conf, "explode"); + if (!explode || cm.getOption("disableInput")) return CodeMirror.Pass; + + var ranges = cm.listSelections(); + for (var i = 0; i < ranges.length; i++) { + if (!ranges[i].empty()) return CodeMirror.Pass; + var around = charsAround(cm, ranges[i].head); + if (!around || explode.indexOf(around) % 2 != 0) return CodeMirror.Pass; + } + cm.operation(function() { + cm.replaceSelection("\n\n", null); + cm.execCommand("goCharLeft"); + ranges = cm.listSelections(); + for (var i = 0; i < ranges.length; i++) { + var line = ranges[i].head.line; + cm.indentLine(line, null, true); + cm.indentLine(line + 1, null, true); + } + }); + } + + function contractSelection(sel) { + var inverted = CodeMirror.cmpPos(sel.anchor, sel.head) > 0; + return {anchor: new Pos(sel.anchor.line, sel.anchor.ch + (inverted ? -1 : 1)), + head: new Pos(sel.head.line, sel.head.ch + (inverted ? 1 : -1))}; + } + + function handleChar(cm, ch) { + var conf = getConfig(cm); + if (!conf || cm.getOption("disableInput")) return CodeMirror.Pass; + + var pairs = getOption(conf, "pairs"); + var pos = pairs.indexOf(ch); + if (pos == -1) return CodeMirror.Pass; + var triples = getOption(conf, "triples"); + + var identical = pairs.charAt(pos + 1) == ch; + var ranges = cm.listSelections(); + var opening = pos % 2 == 0; + + var type; + for (var i = 0; i < ranges.length; i++) { + var range = ranges[i], cur = range.head, curType; + var next = cm.getRange(cur, Pos(cur.line, cur.ch + 1)); + if (opening && !range.empty()) { + curType = "surround"; + } else if ((identical || !opening) && next == ch) { + if (triples.indexOf(ch) >= 0 && cm.getRange(cur, Pos(cur.line, cur.ch + 3)) == ch + ch + ch) + curType = "skipThree"; + else + curType = "skip"; + } else if (identical && cur.ch > 1 && triples.indexOf(ch) >= 0 && + cm.getRange(Pos(cur.line, cur.ch - 2), cur) == ch + ch && + (cur.ch <= 2 || cm.getRange(Pos(cur.line, cur.ch - 3), Pos(cur.line, cur.ch - 2)) != ch)) { + curType = "addFour"; + } else if (identical) { + if (!CodeMirror.isWordChar(next) && enteringString(cm, cur, ch)) curType = "both"; + else return CodeMirror.Pass; + } else if (opening && (cm.getLine(cur.line).length == cur.ch || + isClosingBracket(next, pairs) || + /\s/.test(next))) { + curType = "both"; + } else { + return CodeMirror.Pass; + } + if (!type) type = curType; + else if (type != curType) return CodeMirror.Pass; + } + + var left = pos % 2 ? pairs.charAt(pos - 1) : ch; + var right = pos % 2 ? ch : pairs.charAt(pos + 1); + cm.operation(function() { + if (type == "skip") { + cm.execCommand("goCharRight"); + } else if (type == "skipThree") { + for (var i = 0; i < 3; i++) + cm.execCommand("goCharRight"); + } else if (type == "surround") { + var sels = cm.getSelections(); + for (var i = 0; i < sels.length; i++) + sels[i] = left + sels[i] + right; + cm.replaceSelections(sels, "around"); + sels = cm.listSelections().slice(); + for (var i = 0; i < sels.length; i++) + sels[i] = contractSelection(sels[i]); + cm.setSelections(sels); + } else if (type == "both") { + cm.replaceSelection(left + right, null); + cm.triggerElectric(left + right); + cm.execCommand("goCharLeft"); + } else if (type == "addFour") { + cm.replaceSelection(left + left + left + left, "before"); + cm.execCommand("goCharRight"); + } + }); + } + + function isClosingBracket(ch, pairs) { + var pos = pairs.lastIndexOf(ch); + return pos > -1 && pos % 2 == 1; + } + + function charsAround(cm, pos) { + var str = cm.getRange(Pos(pos.line, pos.ch - 1), + Pos(pos.line, pos.ch + 1)); + return str.length == 2 ? str : null; + } + + // Project the token type that will exists after the given char is + // typed, and use it to determine whether it would cause the start + // of a string token. + function enteringString(cm, pos, ch) { + var line = cm.getLine(pos.line); + var token = cm.getTokenAt(pos); + if (/\bstring2?\b/.test(token.type)) return false; + var stream = new CodeMirror.StringStream(line.slice(0, pos.ch) + ch + line.slice(pos.ch), 4); + stream.pos = stream.start = token.start; + for (;;) { + var type1 = cm.getMode().token(stream, token.state); + if (stream.pos >= pos.ch + 1) return /\bstring2?\b/.test(type1); + stream.start = stream.pos; + } + } +}); |