The Tor Browser / file comparison
comparison: browser/devtools/sourceeditor/codemirror/fold/foldgutter.js
browser/devtools/sourceeditor/codemirror/fold/foldgutter.js
- changeset 0
- 6474c204b198
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| -1:000000000000 | 0:17da4d63be2c |
|---|---|
| 1 (function() { | |
| 2 "use strict"; | |
| 3 | |
| 4 CodeMirror.defineOption("foldGutter", false, function(cm, val, old) { | |
| 5 if (old && old != CodeMirror.Init) { | |
| 6 cm.clearGutter(cm.state.foldGutter.options.gutter); | |
| 7 cm.state.foldGutter = null; | |
| 8 cm.off("gutterClick", onGutterClick); | |
| 9 cm.off("change", onChange); | |
| 10 cm.off("viewportChange", onViewportChange); | |
| 11 cm.off("fold", onFold); | |
| 12 cm.off("unfold", onFold); | |
| 13 cm.off("swapDoc", updateInViewport); | |
| 14 } | |
| 15 if (val) { | |
| 16 cm.state.foldGutter = new State(parseOptions(val)); | |
| 17 updateInViewport(cm); | |
| 18 cm.on("gutterClick", onGutterClick); | |
| 19 cm.on("change", onChange); | |
| 20 cm.on("viewportChange", onViewportChange); | |
| 21 cm.on("fold", onFold); | |
| 22 cm.on("unfold", onFold); | |
| 23 cm.on("swapDoc", updateInViewport); | |
| 24 } | |
| 25 }); | |
| 26 | |
| 27 var Pos = CodeMirror.Pos; | |
| 28 | |
| 29 function State(options) { | |
| 30 this.options = options; | |
| 31 this.from = this.to = 0; | |
| 32 } | |
| 33 | |
| 34 function parseOptions(opts) { | |
| 35 if (opts === true) opts = {}; | |
| 36 if (opts.gutter == null) opts.gutter = "CodeMirror-foldgutter"; | |
| 37 if (opts.indicatorOpen == null) opts.indicatorOpen = "CodeMirror-foldgutter-open"; | |
| 38 if (opts.indicatorFolded == null) opts.indicatorFolded = "CodeMirror-foldgutter-folded"; | |
| 39 return opts; | |
| 40 } | |
| 41 | |
| 42 function isFolded(cm, line) { | |
| 43 var marks = cm.findMarksAt(Pos(line)); | |
| 44 for (var i = 0; i < marks.length; ++i) | |
| 45 if (marks[i].__isFold && marks[i].find().from.line == line) return true; | |
| 46 } | |
| 47 | |
| 48 function marker(spec) { | |
| 49 if (typeof spec == "string") { | |
| 50 var elt = document.createElement("div"); | |
| 51 elt.className = spec; | |
| 52 return elt; | |
| 53 } else { | |
| 54 return spec.cloneNode(true); | |
| 55 } | |
| 56 } | |
| 57 | |
| 58 function updateFoldInfo(cm, from, to) { | |
| 59 var opts = cm.state.foldGutter.options, cur = from; | |
| 60 cm.eachLine(from, to, function(line) { | |
| 61 var mark = null; | |
| 62 if (isFolded(cm, cur)) { | |
| 63 mark = marker(opts.indicatorFolded); | |
| 64 } else { | |
| 65 var pos = Pos(cur, 0), func = opts.rangeFinder || CodeMirror.fold.auto; | |
| 66 var range = func && func(cm, pos); | |
| 67 if (range && range.from.line + 1 < range.to.line) | |
| 68 mark = marker(opts.indicatorOpen); | |
| 69 } | |
| 70 cm.setGutterMarker(line, opts.gutter, mark); | |
| 71 ++cur; | |
| 72 }); | |
| 73 } | |
| 74 | |
| 75 function updateInViewport(cm) { | |
| 76 var vp = cm.getViewport(), state = cm.state.foldGutter; | |
| 77 if (!state) return; | |
| 78 cm.operation(function() { | |
| 79 updateFoldInfo(cm, vp.from, vp.to); | |
| 80 }); | |
| 81 state.from = vp.from; state.to = vp.to; | |
| 82 } | |
| 83 | |
| 84 function onGutterClick(cm, line, gutter) { | |
| 85 var opts = cm.state.foldGutter.options; | |
| 86 if (gutter != opts.gutter) return; | |
| 87 cm.foldCode(Pos(line, 0), opts.rangeFinder); | |
| 88 } | |
| 89 | |
| 90 function onChange(cm) { | |
| 91 var state = cm.state.foldGutter, opts = cm.state.foldGutter.options; | |
| 92 state.from = state.to = 0; | |
| 93 clearTimeout(state.changeUpdate); | |
| 94 state.changeUpdate = setTimeout(function() { updateInViewport(cm); }, opts.foldOnChangeTimeSpan || 600); | |
| 95 } | |
| 96 | |
| 97 function onViewportChange(cm) { | |
| 98 var state = cm.state.foldGutter, opts = cm.state.foldGutter.options; | |
| 99 clearTimeout(state.changeUpdate); | |
| 100 state.changeUpdate = setTimeout(function() { | |
| 101 var vp = cm.getViewport(); | |
| 102 if (state.from == state.to || vp.from - state.to > 20 || state.from - vp.to > 20) { | |
| 103 updateInViewport(cm); | |
| 104 } else { | |
| 105 cm.operation(function() { | |
| 106 if (vp.from < state.from) { | |
| 107 updateFoldInfo(cm, vp.from, state.from); | |
| 108 state.from = vp.from; | |
| 109 } | |
| 110 if (vp.to > state.to) { | |
| 111 updateFoldInfo(cm, state.to, vp.to); | |
| 112 state.to = vp.to; | |
| 113 } | |
| 114 }); | |
| 115 } | |
| 116 }, opts.updateViewportTimeSpan || 400); | |
| 117 } | |
| 118 | |
| 119 function onFold(cm, from) { | |
| 120 var state = cm.state.foldGutter, line = from.line; | |
| 121 if (line >= state.from && line < state.to) | |
| 122 updateFoldInfo(cm, line, line + 1); | |
| 123 } | |
| 124 })(); |
