The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/browser/devtools/sourceeditor/codemirror/activeline.js	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,66 @@
     1.4 +// Because sometimes you need to style the cursor's line.
     1.5 +//
     1.6 +// Adds an option 'styleActiveLine' which, when enabled, gives the
     1.7 +// active line's wrapping <div> the CSS class "CodeMirror-activeline",
     1.8 +// and gives its background <div> the class "CodeMirror-activeline-background".
     1.9 +
    1.10 +(function(mod) {
    1.11 +  if (typeof exports == "object" && typeof module == "object") // CommonJS
    1.12 +    mod(require("../../lib/codemirror"));
    1.13 +  else if (typeof define == "function" && define.amd) // AMD
    1.14 +    define(["../../lib/codemirror"], mod);
    1.15 +  else // Plain browser env
    1.16 +    mod(CodeMirror);
    1.17 +})(function(CodeMirror) {
    1.18 +  "use strict";
    1.19 +  var WRAP_CLASS = "CodeMirror-activeline";
    1.20 +  var BACK_CLASS = "CodeMirror-activeline-background";
    1.21 +
    1.22 +  CodeMirror.defineOption("styleActiveLine", false, function(cm, val, old) {
    1.23 +    var prev = old && old != CodeMirror.Init;
    1.24 +    if (val && !prev) {
    1.25 +      cm.state.activeLines = [];
    1.26 +      updateActiveLines(cm, cm.listSelections());
    1.27 +      cm.on("beforeSelectionChange", selectionChange);
    1.28 +    } else if (!val && prev) {
    1.29 +      cm.off("beforeSelectionChange", selectionChange);
    1.30 +      clearActiveLines(cm);
    1.31 +      delete cm.state.activeLines;
    1.32 +    }
    1.33 +  });
    1.34 +
    1.35 +  function clearActiveLines(cm) {
    1.36 +    for (var i = 0; i < cm.state.activeLines.length; i++) {
    1.37 +      cm.removeLineClass(cm.state.activeLines[i], "wrap", WRAP_CLASS);
    1.38 +      cm.removeLineClass(cm.state.activeLines[i], "background", BACK_CLASS);
    1.39 +    }
    1.40 +  }
    1.41 +
    1.42 +  function sameArray(a, b) {
    1.43 +    if (a.length != b.length) return false;
    1.44 +    for (var i = 0; i < a.length; i++)
    1.45 +      if (a[i] != b[i]) return false;
    1.46 +    return true;
    1.47 +  }
    1.48 +
    1.49 +  function updateActiveLines(cm, ranges) {
    1.50 +    var active = [];
    1.51 +    for (var i = 0; i < ranges.length; i++) {
    1.52 +      var line = cm.getLineHandleVisualStart(ranges[i].head.line);
    1.53 +      if (active[active.length - 1] != line) active.push(line);
    1.54 +    }
    1.55 +    if (sameArray(cm.state.activeLines, active)) return;
    1.56 +    cm.operation(function() {
    1.57 +      clearActiveLines(cm);
    1.58 +      for (var i = 0; i < active.length; i++) {
    1.59 +        cm.addLineClass(active[i], "wrap", WRAP_CLASS);
    1.60 +        cm.addLineClass(active[i], "background", BACK_CLASS);
    1.61 +      }
    1.62 +      cm.state.activeLines = active;
    1.63 +    });
    1.64 +  }
    1.65 +
    1.66 +  function selectionChange(cm, sel) {
    1.67 +    updateActiveLines(cm, sel.ranges);
    1.68 +  }
    1.69 +});