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File: editor/codemirror/addon/selection/mark-selection.js

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File: editor/codemirror/addon/selection/mark-selection.js
Role: Auxiliary data
Content type: text/plain
Description: Auxiliary data
Class: Custom PHP HTML Parser
Process HTML to replace it with parameter values
Author: By
Last change:
Date: 1 year ago
Size: 3,849 bytes
 

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// CodeMirror, copyright (c) by Marijn Haverbeke and others // Distributed under an MIT license: https://codemirror.net/5/LICENSE // Because sometimes you need to mark the selected *text*. // // Adds an option 'styleSelectedText' which, when enabled, gives // selected text the CSS class given as option value, or // "CodeMirror-selectedtext" when the value is not a string. (function(mod) { if (typeof exports == "object" && typeof module == "object") // CommonJS mod(require("../../lib/codemirror")); else if (typeof define == "function" && define.amd) // AMD define(["../../lib/codemirror"], mod); else // Plain browser env mod(CodeMirror); })(function(CodeMirror) { "use strict"; CodeMirror.defineOption("styleSelectedText", false, function(cm, val, old) { var prev = old && old != CodeMirror.Init; if (val && !prev) { cm.state.markedSelection = []; cm.state.markedSelectionStyle = typeof val == "string" ? val : "CodeMirror-selectedtext"; reset(cm); cm.on("cursorActivity", onCursorActivity); cm.on("change", onChange); } else if (!val && prev) { cm.off("cursorActivity", onCursorActivity); cm.off("change", onChange); clear(cm); cm.state.markedSelection = cm.state.markedSelectionStyle = null; } }); function onCursorActivity(cm) { if (cm.state.markedSelection) cm.operation(function() { update(cm); }); } function onChange(cm) { if (cm.state.markedSelection && cm.state.markedSelection.length) cm.operation(function() { clear(cm); }); } var CHUNK_SIZE = 8; var Pos = CodeMirror.Pos; var cmp = CodeMirror.cmpPos; function coverRange(cm, from, to, addAt) { if (cmp(from, to) == 0) return; var array = cm.state.markedSelection; var cls = cm.state.markedSelectionStyle; for (var line = from.line;;) { var start = line == from.line ? from : Pos(line, 0); var endLine = line + CHUNK_SIZE, atEnd = endLine >= to.line; var end = atEnd ? to : Pos(endLine, 0); var mark = cm.markText(start, end, {className: cls}); if (addAt == null) array.push(mark); else array.splice(addAt++, 0, mark); if (atEnd) break; line = endLine; } } function clear(cm) { var array = cm.state.markedSelection; for (var i = 0; i < array.length; ++i) array[i].clear(); array.length = 0; } function reset(cm) { clear(cm); var ranges = cm.listSelections(); for (var i = 0; i < ranges.length; i++) coverRange(cm, ranges[i].from(), ranges[i].to()); } function update(cm) { if (!cm.somethingSelected()) return clear(cm); if (cm.listSelections().length > 1) return reset(cm); var from = cm.getCursor("start"), to = cm.getCursor("end"); var array = cm.state.markedSelection; if (!array.length) return coverRange(cm, from, to); var coverStart = array[0].find(), coverEnd = array[array.length - 1].find(); if (!coverStart || !coverEnd || to.line - from.line <= CHUNK_SIZE || cmp(from, coverEnd.to) >= 0 || cmp(to, coverStart.from) <= 0) return reset(cm); while (cmp(from, coverStart.from) > 0) { array.shift().clear(); coverStart = array[0].find(); } if (cmp(from, coverStart.from) < 0) { if (coverStart.to.line - from.line < CHUNK_SIZE) { array.shift().clear(); coverRange(cm, from, coverStart.to, 0); } else { coverRange(cm, from, coverStart.from, 0); } } while (cmp(to, coverEnd.to) < 0) { array.pop().clear(); coverEnd = array[array.length - 1].find(); } if (cmp(to, coverEnd.to) > 0) { if (to.line - coverEnd.from.line < CHUNK_SIZE) { array.pop().clear(); coverRange(cm, coverEnd.from, to); } else { coverRange(cm, coverEnd.to, to); } } } });