1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
|
// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: http://codemirror.net/LICENSE
(function(mod) {
if (typeof exports == "object" && typeof module == "object") // CommonJS
mod(require("../../lib/codemirror"), require("./foldcode"));
else if (typeof define == "function" && define.amd) // AMD
define(["../../lib/codemirror", "./foldcode"], mod);
else // Plain browser env
mod(CodeMirror);
})(function(CodeMirror) {
"use strict";
CodeMirror.defineOption("foldGutter", false, function(cm, val, old) {
if (old && old != CodeMirror.Init) {
cm.clearGutter(cm.state.foldGutter.options.gutter);
cm.state.foldGutter = null;
cm.off("gutterClick", onGutterClick);
cm.off("change", onChange);
cm.off("viewportChange", onViewportChange);
cm.off("fold", onFold);
cm.off("unfold", onFold);
cm.off("swapDoc", onChange);
}
if (val) {
cm.state.foldGutter = new State(parseOptions(val));
updateInViewport(cm);
cm.on("gutterClick", onGutterClick);
cm.on("change", onChange);
cm.on("viewportChange", onViewportChange);
cm.on("fold", onFold);
cm.on("unfold", onFold);
cm.on("swapDoc", onChange);
}
});
var Pos = CodeMirror.Pos;
function State(options) {
this.options = options;
this.from = this.to = 0;
}
function parseOptions(opts) {
if (opts === true) opts = {};
if (opts.gutter == null) opts.gutter = "CodeMirror-foldgutter";
if (opts.indicatorOpen == null) opts.indicatorOpen = "CodeMirror-foldgutter-open";
if (opts.indicatorFolded == null) opts.indicatorFolded = "CodeMirror-foldgutter-folded";
return opts;
}
function isFolded(cm, line) {
var marks = cm.findMarks(Pos(line, 0), Pos(line + 1, 0));
for (var i = 0; i < marks.length; ++i)
if (marks[i].__isFold && marks[i].find().from.line == line) return marks[i];
}
function marker(spec) {
if (typeof spec == "string") {
var elt = document.createElement("div");
elt.className = spec + " CodeMirror-guttermarker-subtle";
return elt;
} else {
return spec.cloneNode(true);
}
}
function updateFoldInfo(cm, from, to) {
var opts = cm.state.foldGutter.options, cur = from;
var minSize = cm.foldOption(opts, "minFoldSize");
var func = cm.foldOption(opts, "rangeFinder");
cm.eachLine(from, to, function(line) {
var mark = null;
if (isFolded(cm, cur)) {
mark = marker(opts.indicatorFolded);
} else {
var pos = Pos(cur, 0);
var range = func && func(cm, pos);
if (range && range.to.line - range.from.line >= minSize)
mark = marker(opts.indicatorOpen);
}
cm.setGutterMarker(line, opts.gutter, mark);
++cur;
});
}
function updateInViewport(cm) {
var vp = cm.getViewport(), state = cm.state.foldGutter;
if (!state) return;
cm.operation(function() {
updateFoldInfo(cm, vp.from, vp.to);
});
state.from = vp.from; state.to = vp.to;
}
function onGutterClick(cm, line, gutter) {
var state = cm.state.foldGutter;
if (!state) return;
var opts = state.options;
if (gutter != opts.gutter) return;
var folded = isFolded(cm, line);
if (folded) folded.clear();
else cm.foldCode(Pos(line, 0), opts.rangeFinder);
}
function onChange(cm) {
var state = cm.state.foldGutter;
if (!state) return;
var opts = state.options;
state.from = state.to = 0;
clearTimeout(state.changeUpdate);
state.changeUpdate = setTimeout(function() { updateInViewport(cm); }, opts.foldOnChangeTimeSpan || 600);
}
function onViewportChange(cm) {
var state = cm.state.foldGutter;
if (!state) return;
var opts = state.options;
clearTimeout(state.changeUpdate);
state.changeUpdate = setTimeout(function() {
var vp = cm.getViewport();
if (state.from == state.to || vp.from - state.to > 20 || state.from - vp.to > 20) {
updateInViewport(cm);
} else {
cm.operation(function() {
if (vp.from < state.from) {
updateFoldInfo(cm, vp.from, state.from);
state.from = vp.from;
}
if (vp.to > state.to) {
updateFoldInfo(cm, state.to, vp.to);
state.to = vp.to;
}
});
}
}, opts.updateViewportTimeSpan || 400);
}
function onFold(cm, from) {
var state = cm.state.foldGutter;
if (!state) return;
var line = from.line;
if (line >= state.from && line < state.to)
updateFoldInfo(cm, line, line + 1);
}
});
|
