The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/browser/devtools/sourceeditor/codemirror/search/match-highlighter.js	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,100 @@
     1.4 +// Highlighting text that matches the selection
     1.5 +//
     1.6 +// Defines an option highlightSelectionMatches, which, when enabled,
     1.7 +// will style strings that match the selection throughout the
     1.8 +// document.
     1.9 +//
    1.10 +// The option can be set to true to simply enable it, or to a
    1.11 +// {minChars, style, showToken} object to explicitly configure it.
    1.12 +// minChars is the minimum amount of characters that should be
    1.13 +// selected for the behavior to occur, and style is the token style to
    1.14 +// apply to the matches. This will be prefixed by "cm-" to create an
    1.15 +// actual CSS class name. showToken, when enabled, will cause the
    1.16 +// current token to be highlighted when nothing is selected.
    1.17 +
    1.18 +(function(mod) {
    1.19 +  if (typeof exports == "object" && typeof module == "object") // CommonJS
    1.20 +    mod(require("../../lib/codemirror"));
    1.21 +  else if (typeof define == "function" && define.amd) // AMD
    1.22 +    define(["../../lib/codemirror"], mod);
    1.23 +  else // Plain browser env
    1.24 +    mod(CodeMirror);
    1.25 +})(function(CodeMirror) {
    1.26 +  "use strict";
    1.27 +
    1.28 +  var DEFAULT_MIN_CHARS = 2;
    1.29 +  var DEFAULT_TOKEN_STYLE = "matchhighlight";
    1.30 +  var DEFAULT_DELAY = 100;
    1.31 +
    1.32 +  function State(options) {
    1.33 +    if (typeof options == "object") {
    1.34 +      this.minChars = options.minChars;
    1.35 +      this.style = options.style;
    1.36 +      this.showToken = options.showToken;
    1.37 +      this.delay = options.delay;
    1.38 +    }
    1.39 +    if (this.style == null) this.style = DEFAULT_TOKEN_STYLE;
    1.40 +    if (this.minChars == null) this.minChars = DEFAULT_MIN_CHARS;
    1.41 +    if (this.delay == null) this.delay = DEFAULT_DELAY;
    1.42 +    this.overlay = this.timeout = null;
    1.43 +  }
    1.44 +
    1.45 +  CodeMirror.defineOption("highlightSelectionMatches", false, function(cm, val, old) {
    1.46 +    if (old && old != CodeMirror.Init) {
    1.47 +      var over = cm.state.matchHighlighter.overlay;
    1.48 +      if (over) cm.removeOverlay(over);
    1.49 +      clearTimeout(cm.state.matchHighlighter.timeout);
    1.50 +      cm.state.matchHighlighter = null;
    1.51 +      cm.off("cursorActivity", cursorActivity);
    1.52 +    }
    1.53 +    if (val) {
    1.54 +      cm.state.matchHighlighter = new State(val);
    1.55 +      highlightMatches(cm);
    1.56 +      cm.on("cursorActivity", cursorActivity);
    1.57 +    }
    1.58 +  });
    1.59 +
    1.60 +  function cursorActivity(cm) {
    1.61 +    var state = cm.state.matchHighlighter;
    1.62 +    clearTimeout(state.timeout);
    1.63 +    state.timeout = setTimeout(function() {highlightMatches(cm);}, state.delay);
    1.64 +  }
    1.65 +
    1.66 +  function highlightMatches(cm) {
    1.67 +    cm.operation(function() {
    1.68 +      var state = cm.state.matchHighlighter;
    1.69 +      if (state.overlay) {
    1.70 +        cm.removeOverlay(state.overlay);
    1.71 +        state.overlay = null;
    1.72 +      }
    1.73 +      if (!cm.somethingSelected() && state.showToken) {
    1.74 +        var re = state.showToken === true ? /[\w$]/ : state.showToken;
    1.75 +        var cur = cm.getCursor(), line = cm.getLine(cur.line), start = cur.ch, end = start;
    1.76 +        while (start && re.test(line.charAt(start - 1))) --start;
    1.77 +        while (end < line.length && re.test(line.charAt(end))) ++end;
    1.78 +        if (start < end)
    1.79 +          cm.addOverlay(state.overlay = makeOverlay(line.slice(start, end), re, state.style));
    1.80 +        return;
    1.81 +      }
    1.82 +      if (cm.getCursor("head").line != cm.getCursor("anchor").line) return;
    1.83 +      var selection = cm.getSelections()[0].replace(/^\s+|\s+$/g, "");
    1.84 +      if (selection.length >= state.minChars)
    1.85 +        cm.addOverlay(state.overlay = makeOverlay(selection, false, state.style));
    1.86 +    });
    1.87 +  }
    1.88 +
    1.89 +  function boundariesAround(stream, re) {
    1.90 +    return (!stream.start || !re.test(stream.string.charAt(stream.start - 1))) &&
    1.91 +      (stream.pos == stream.string.length || !re.test(stream.string.charAt(stream.pos)));
    1.92 +  }
    1.93 +
    1.94 +  function makeOverlay(query, hasBoundary, style) {
    1.95 +    return {token: function(stream) {
    1.96 +      if (stream.match(query) &&
    1.97 +          (!hasBoundary || boundariesAround(stream, hasBoundary)))
    1.98 +        return style;
    1.99 +      stream.next();
   1.100 +      stream.skipTo(query.charAt(0)) || stream.skipToEnd();
   1.101 +    }};
   1.102 +  }
   1.103 +});