The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/browser/devtools/sourceeditor/codemirror/matchbrackets.js	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,108 @@
     1.4 +(function(mod) {
     1.5 +  if (typeof exports == "object" && typeof module == "object") // CommonJS
     1.6 +    mod(require("../../lib/codemirror"));
     1.7 +  else if (typeof define == "function" && define.amd) // AMD
     1.8 +    define(["../../lib/codemirror"], mod);
     1.9 +  else // Plain browser env
    1.10 +    mod(CodeMirror);
    1.11 +})(function(CodeMirror) {
    1.12 +  var ie_lt8 = /MSIE \d/.test(navigator.userAgent) &&
    1.13 +    (document.documentMode == null || document.documentMode < 8);
    1.14 +
    1.15 +  var Pos = CodeMirror.Pos;
    1.16 +
    1.17 +  var matching = {"(": ")>", ")": "(<", "[": "]>", "]": "[<", "{": "}>", "}": "{<"};
    1.18 +
    1.19 +  function findMatchingBracket(cm, where, strict, config) {
    1.20 +    var line = cm.getLineHandle(where.line), pos = where.ch - 1;
    1.21 +    var match = (pos >= 0 && matching[line.text.charAt(pos)]) || matching[line.text.charAt(++pos)];
    1.22 +    if (!match) return null;
    1.23 +    var dir = match.charAt(1) == ">" ? 1 : -1;
    1.24 +    if (strict && (dir > 0) != (pos == where.ch)) return null;
    1.25 +    var style = cm.getTokenTypeAt(Pos(where.line, pos + 1));
    1.26 +
    1.27 +    var found = scanForBracket(cm, Pos(where.line, pos + (dir > 0 ? 1 : 0)), dir, style || null, config);
    1.28 +    return {from: Pos(where.line, pos), to: found && found.pos,
    1.29 +            match: found && found.ch == match.charAt(0), forward: dir > 0};
    1.30 +  }
    1.31 +
    1.32 +  function scanForBracket(cm, where, dir, style, config) {
    1.33 +    var maxScanLen = (config && config.maxScanLineLength) || 10000;
    1.34 +    var maxScanLines = (config && config.maxScanLines) || 500;
    1.35 +
    1.36 +    var stack = [], re = /[(){}[\]]/;
    1.37 +    var lineEnd = dir > 0 ? Math.min(where.line + maxScanLines, cm.lastLine() + 1)
    1.38 +                          : Math.max(cm.firstLine() - 1, where.line - maxScanLines);
    1.39 +    for (var lineNo = where.line; lineNo != lineEnd; lineNo += dir) {
    1.40 +      var line = cm.getLine(lineNo);
    1.41 +      if (!line) continue;
    1.42 +      var pos = dir > 0 ? 0 : line.length - 1, end = dir > 0 ? line.length : -1;
    1.43 +      if (line.length > maxScanLen) continue;
    1.44 +      if (lineNo == where.line) pos = where.ch - (dir < 0 ? 1 : 0);
    1.45 +      for (; pos != end; pos += dir) {
    1.46 +        var ch = line.charAt(pos);
    1.47 +        if (re.test(ch) && (style === undefined || cm.getTokenTypeAt(Pos(lineNo, pos + 1)) == style)) {
    1.48 +          var match = matching[ch];
    1.49 +          if ((match.charAt(1) == ">") == (dir > 0)) stack.push(ch);
    1.50 +          else if (!stack.length) return {pos: Pos(lineNo, pos), ch: ch};
    1.51 +          else stack.pop();
    1.52 +        }
    1.53 +      }
    1.54 +    }
    1.55 +  }
    1.56 +
    1.57 +  function matchBrackets(cm, autoclear, config) {
    1.58 +    // Disable brace matching in long lines, since it'll cause hugely slow updates
    1.59 +    var maxHighlightLen = cm.state.matchBrackets.maxHighlightLineLength || 1000;
    1.60 +    var marks = [], ranges = cm.listSelections();
    1.61 +    for (var i = 0; i < ranges.length; i++) {
    1.62 +      var match = ranges[i].empty() && findMatchingBracket(cm, ranges[i].head, false, config);
    1.63 +      if (match && cm.getLine(match.from.line).length <= maxHighlightLen &&
    1.64 +          match.to && cm.getLine(match.to.line).length <= maxHighlightLen) {
    1.65 +        var style = match.match ? "CodeMirror-matchingbracket" : "CodeMirror-nonmatchingbracket";
    1.66 +        marks.push(cm.markText(match.from, Pos(match.from.line, match.from.ch + 1), {className: style}));
    1.67 +        if (match.to)
    1.68 +          marks.push(cm.markText(match.to, Pos(match.to.line, match.to.ch + 1), {className: style}));
    1.69 +      }
    1.70 +    }
    1.71 +
    1.72 +    if (marks.length) {
    1.73 +      // Kludge to work around the IE bug from issue #1193, where text
    1.74 +      // input stops going to the textare whever this fires.
    1.75 +      if (ie_lt8 && cm.state.focused) cm.display.input.focus();
    1.76 +
    1.77 +      var clear = function() {
    1.78 +        cm.operation(function() {
    1.79 +          for (var i = 0; i < marks.length; i++) marks[i].clear();
    1.80 +        });
    1.81 +      };
    1.82 +      if (autoclear) setTimeout(clear, 800);
    1.83 +      else return clear;
    1.84 +    }
    1.85 +  }
    1.86 +
    1.87 +  var currentlyHighlighted = null;
    1.88 +  function doMatchBrackets(cm) {
    1.89 +    cm.operation(function() {
    1.90 +      if (currentlyHighlighted) {currentlyHighlighted(); currentlyHighlighted = null;}
    1.91 +      currentlyHighlighted = matchBrackets(cm, false, cm.state.matchBrackets);
    1.92 +    });
    1.93 +  }
    1.94 +
    1.95 +  CodeMirror.defineOption("matchBrackets", false, function(cm, val, old) {
    1.96 +    if (old && old != CodeMirror.Init)
    1.97 +      cm.off("cursorActivity", doMatchBrackets);
    1.98 +    if (val) {
    1.99 +      cm.state.matchBrackets = typeof val == "object" ? val : {};
   1.100 +      cm.on("cursorActivity", doMatchBrackets);
   1.101 +    }
   1.102 +  });
   1.103 +
   1.104 +  CodeMirror.defineExtension("matchBrackets", function() {matchBrackets(this, true);});
   1.105 +  CodeMirror.defineExtension("findMatchingBracket", function(pos, strict){
   1.106 +    return findMatchingBracket(this, pos, strict);
   1.107 +  });
   1.108 +  CodeMirror.defineExtension("scanForBracket", function(pos, dir, style){
   1.109 +    return scanForBracket(this, pos, dir, style);
   1.110 +  });
   1.111 +});