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authorJon Reid2012-03-06 18:08:37 -0800
committerJon Reid2012-03-06 18:08:37 -0800
commit6056fdb63b5f4690115e63ee50e8d7dac309ba64 (patch)
tree5fbe386e4c7732fb84b98c9539b186898f076c7b /imports/codemirror/lib/util/match-highlighter.js
parentbcfb704b04587f95a13c474cf0598ba90ec3b371 (diff)
parenta12603cfcfe9d82def3b972dcbcc80f1e790ad85 (diff)
downloadninja-6056fdb63b5f4690115e63ee50e8d7dac309ba64.tar.gz
Merge branch 'Timeline-uber' into timeline-serialized
Diffstat (limited to 'imports/codemirror/lib/util/match-highlighter.js')
-rw-r--r--imports/codemirror/lib/util/match-highlighter.js44
1 files changed, 44 insertions, 0 deletions
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1// Define match-highlighter commands. Depends on searchcursor.js
2// Use by attaching the following function call to the onCursorActivity event:
3 //myCodeMirror.matchHighlight(minChars);
4// And including a special span.CodeMirror-matchhighlight css class (also optionally a separate one for .CodeMirror-focused -- see demo matchhighlighter.html)
5
6(function() {
7 var DEFAULT_MIN_CHARS = 2;
8
9 function MatchHighlightState() {
10 this.marked = [];
11 }
12 function getMatchHighlightState(cm) {
13 return cm._matchHighlightState || (cm._matchHighlightState = new MatchHighlightState());
14 }
15
16 function clearMarks(cm) {
17 var state = getMatchHighlightState(cm);
18 for (var i = 0; i < state.marked.length; ++i)
19 state.marked[i].clear();
20 state.marked = [];
21 }
22
23 function markDocument(cm, className, minChars) {
24 clearMarks(cm);
25 minChars = (typeof minChars !== 'undefined' ? minChars : DEFAULT_MIN_CHARS);
26 if (cm.somethingSelected() && cm.getSelection().length >= minChars) {
27 var state = getMatchHighlightState(cm);
28 var query = cm.getSelection();
29 cm.operation(function() {
30 if (cm.lineCount() < 2000) { // This is too expensive on big documents.
31 for (var cursor = cm.getSearchCursor(query); cursor.findNext();) {
32 //Only apply matchhighlight to the matches other than the one actually selected
33 if (!(cursor.from().line === cm.getCursor(true).line && cursor.from().ch === cm.getCursor(true).ch))
34 state.marked.push(cm.markText(cursor.from(), cursor.to(), className));
35 }
36 }
37 });
38 }
39 }
40
41 CodeMirror.defineExtension("matchHighlight", function(className, minChars) {
42 markDocument(this, className, minChars);
43 });
44})();