Mercurial
comparison .cms/lib/codemirror/addon/selection/active-line.js @ 0:78edf6b517a0 draft
24.10
author | Coffee CMS <info@coffee-cms.ru> |
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date | Fri, 11 Oct 2024 22:40:23 +0000 |
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-1:000000000000 | 0:78edf6b517a0 |
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1 // CodeMirror, copyright (c) by Marijn Haverbeke and others | |
2 // Distributed under an MIT license: https://codemirror.net/5/LICENSE | |
3 | |
4 (function(mod) { | |
5 if (typeof exports == "object" && typeof module == "object") // CommonJS | |
6 mod(require("../../lib/codemirror")); | |
7 else if (typeof define == "function" && define.amd) // AMD | |
8 define(["../../lib/codemirror"], mod); | |
9 else // Plain browser env | |
10 mod(CodeMirror); | |
11 })(function(CodeMirror) { | |
12 "use strict"; | |
13 var WRAP_CLASS = "CodeMirror-activeline"; | |
14 var BACK_CLASS = "CodeMirror-activeline-background"; | |
15 var GUTT_CLASS = "CodeMirror-activeline-gutter"; | |
16 | |
17 CodeMirror.defineOption("styleActiveLine", false, function(cm, val, old) { | |
18 var prev = old == CodeMirror.Init ? false : old; | |
19 if (val == prev) return | |
20 if (prev) { | |
21 cm.off("beforeSelectionChange", selectionChange); | |
22 clearActiveLines(cm); | |
23 delete cm.state.activeLines; | |
24 } | |
25 if (val) { | |
26 cm.state.activeLines = []; | |
27 updateActiveLines(cm, cm.listSelections()); | |
28 cm.on("beforeSelectionChange", selectionChange); | |
29 } | |
30 }); | |
31 | |
32 function clearActiveLines(cm) { | |
33 for (var i = 0; i < cm.state.activeLines.length; i++) { | |
34 cm.removeLineClass(cm.state.activeLines[i], "wrap", WRAP_CLASS); | |
35 cm.removeLineClass(cm.state.activeLines[i], "background", BACK_CLASS); | |
36 cm.removeLineClass(cm.state.activeLines[i], "gutter", GUTT_CLASS); | |
37 } | |
38 } | |
39 | |
40 function sameArray(a, b) { | |
41 if (a.length != b.length) return false; | |
42 for (var i = 0; i < a.length; i++) | |
43 if (a[i] != b[i]) return false; | |
44 return true; | |
45 } | |
46 | |
47 function updateActiveLines(cm, ranges) { | |
48 var active = []; | |
49 for (var i = 0; i < ranges.length; i++) { | |
50 var range = ranges[i]; | |
51 var option = cm.getOption("styleActiveLine"); | |
52 if (typeof option == "object" && option.nonEmpty ? range.anchor.line != range.head.line : !range.empty()) | |
53 continue | |
54 var line = cm.getLineHandleVisualStart(range.head.line); | |
55 if (active[active.length - 1] != line) active.push(line); | |
56 } | |
57 if (sameArray(cm.state.activeLines, active)) return; | |
58 cm.operation(function() { | |
59 clearActiveLines(cm); | |
60 for (var i = 0; i < active.length; i++) { | |
61 cm.addLineClass(active[i], "wrap", WRAP_CLASS); | |
62 cm.addLineClass(active[i], "background", BACK_CLASS); | |
63 cm.addLineClass(active[i], "gutter", GUTT_CLASS); | |
64 } | |
65 cm.state.activeLines = active; | |
66 }); | |
67 } | |
68 | |
69 function selectionChange(cm, sel) { | |
70 updateActiveLines(cm, sel.ranges); | |
71 } | |
72 }); |