Mercurial
diff .cms/lib/codemirror/addon/fold/foldgutter.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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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/.cms/lib/codemirror/addon/fold/foldgutter.js Fri Oct 11 22:40:23 2024 +0000 @@ -0,0 +1,169 @@ +// CodeMirror, copyright (c) by Marijn Haverbeke and others +// Distributed under an MIT license: https://codemirror.net/5/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("changes", onChange); + cm.off("viewportChange", onViewportChange); + cm.off("fold", onFold); + cm.off("unfold", onFold); + cm.off("swapDoc", onChange); + cm.off("optionChange", optionChange); + } + if (val) { + cm.state.foldGutter = new State(parseOptions(val)); + updateInViewport(cm); + cm.on("gutterClick", onGutterClick); + cm.on("changes", onChange); + cm.on("viewportChange", onViewportChange); + cm.on("fold", onFold); + cm.on("unfold", onFold); + cm.on("swapDoc", onChange); + cm.on("optionChange", optionChange); + } + }); + + 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) { + var fromPos = marks[i].find(-1); + if (fromPos && fromPos.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 - 1; + var minSize = cm.foldOption(opts, "minFoldSize"); + var func = cm.foldOption(opts, "rangeFinder"); + // we can reuse the built-in indicator element if its className matches the new state + var clsFolded = typeof opts.indicatorFolded == "string" && classTest(opts.indicatorFolded); + var clsOpen = typeof opts.indicatorOpen == "string" && classTest(opts.indicatorOpen); + cm.eachLine(from, to, function(line) { + ++cur; + var mark = null; + var old = line.gutterMarkers; + if (old) old = old[opts.gutter]; + if (isFolded(cm, cur)) { + if (clsFolded && old && clsFolded.test(old.className)) return; + 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) { + if (clsOpen && old && clsOpen.test(old.className)) return; + mark = marker(opts.indicatorOpen); + } + } + if (!mark && !old) return; + cm.setGutterMarker(line, opts.gutter, mark); + }); + } + + // copied from CodeMirror/src/util/dom.js + function classTest(cls) { return new RegExp("(^|\\s)" + cls + "(?:$|\\s)\\s*") } + + 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); + } + + function optionChange(cm, option) { + if (option == "mode") onChange(cm) + } + + 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); + } +});