Mercurial
comparison .cms/lib/codemirror/addon/scroll/scrollpastend.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 | |
14 CodeMirror.defineOption("scrollPastEnd", false, function(cm, val, old) { | |
15 if (old && old != CodeMirror.Init) { | |
16 cm.off("change", onChange); | |
17 cm.off("refresh", updateBottomMargin); | |
18 cm.display.lineSpace.parentNode.style.paddingBottom = ""; | |
19 cm.state.scrollPastEndPadding = null; | |
20 } | |
21 if (val) { | |
22 cm.on("change", onChange); | |
23 cm.on("refresh", updateBottomMargin); | |
24 updateBottomMargin(cm); | |
25 } | |
26 }); | |
27 | |
28 function onChange(cm, change) { | |
29 if (CodeMirror.changeEnd(change).line == cm.lastLine()) | |
30 updateBottomMargin(cm); | |
31 } | |
32 | |
33 function updateBottomMargin(cm) { | |
34 var padding = ""; | |
35 if (cm.lineCount() > 1) { | |
36 var totalH = cm.display.scroller.clientHeight - 30, | |
37 lastLineH = cm.getLineHandle(cm.lastLine()).height; | |
38 padding = (totalH - lastLineH) + "px"; | |
39 } | |
40 if (cm.state.scrollPastEndPadding != padding) { | |
41 cm.state.scrollPastEndPadding = padding; | |
42 cm.display.lineSpace.parentNode.style.paddingBottom = padding; | |
43 cm.off("refresh", updateBottomMargin); | |
44 cm.setSize(); | |
45 cm.on("refresh", updateBottomMargin); | |
46 } | |
47 } | |
48 }); |