| /* |
| * Copyright (C) 2009 Google Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following disclaimer |
| * in the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| /** |
| * @constructor |
| * @param {number} startLine |
| * @param {number} startColumn |
| * @param {number} endLine |
| * @param {number} endColumn |
| */ |
| WebInspector.TextRange = function(startLine, startColumn, endLine, endColumn) |
| { |
| this.startLine = startLine; |
| this.startColumn = startColumn; |
| this.endLine = endLine; |
| this.endColumn = endColumn; |
| } |
| |
| WebInspector.TextRange.createFromLocation = function(line, column) |
| { |
| return new WebInspector.TextRange(line, column, line, column); |
| } |
| |
| /** |
| * @param {Object} serializedTextRange |
| * @return {WebInspector.TextRange} |
| */ |
| WebInspector.TextRange.fromObject = function (serializedTextRange) |
| { |
| return new WebInspector.TextRange(serializedTextRange.startLine, serializedTextRange.startColumn, serializedTextRange.endLine, serializedTextRange.endColumn); |
| } |
| |
| WebInspector.TextRange.prototype = { |
| /** |
| * @return {boolean} |
| */ |
| isEmpty: function() |
| { |
| return this.startLine === this.endLine && this.startColumn === this.endColumn; |
| }, |
| |
| /** |
| * @return {number} |
| */ |
| get linesCount() |
| { |
| return this.endLine - this.startLine; |
| }, |
| |
| collapseToEnd: function() |
| { |
| return new WebInspector.TextRange(this.endLine, this.endColumn, this.endLine, this.endColumn); |
| }, |
| |
| /** |
| * @return {WebInspector.TextRange} |
| */ |
| normalize: function() |
| { |
| if (this.startLine > this.endLine || (this.startLine === this.endLine && this.startColumn > this.endColumn)) |
| return new WebInspector.TextRange(this.endLine, this.endColumn, this.startLine, this.startColumn); |
| else |
| return this; |
| }, |
| |
| /** |
| * @return {WebInspector.TextRange} |
| */ |
| clone: function() |
| { |
| return new WebInspector.TextRange(this.startLine, this.startColumn, this.endLine, this.endColumn); |
| }, |
| |
| /** |
| * @return {Object} |
| */ |
| serializeToObject: function() |
| { |
| var serializedTextRange = {}; |
| serializedTextRange.startLine = this.startLine; |
| serializedTextRange.startColumn = this.startColumn; |
| serializedTextRange.endLine = this.endLine; |
| serializedTextRange.endColumn = this.endColumn; |
| return serializedTextRange; |
| }, |
| |
| /** |
| * @param {WebInspector.TextRange} other |
| * @return {number} |
| */ |
| compareTo: function(other) |
| { |
| if (this.startLine > other.startLine) |
| return 1; |
| if (this.startLine < other.startLine) |
| return -1; |
| if (this.startColumn > other.startColumn) |
| return 1; |
| if (this.startColumn < other.startColumn) |
| return -1; |
| return 0; |
| } |
| } |
| |
| /** |
| * @constructor |
| * @param {WebInspector.TextRange} newRange |
| * @param {string} originalText |
| */ |
| WebInspector.TextEditorCommand = function(newRange, originalText) |
| { |
| this.newRange = newRange; |
| this.originalText = originalText; |
| } |
| |
| /** |
| * @constructor |
| * @extends {WebInspector.Object} |
| */ |
| WebInspector.TextEditorModel = function() |
| { |
| this._lines = [""]; |
| this._attributes = []; |
| /** @type {Array.<WebInspector.TextEditorCommand>} */ |
| this._undoStack = []; |
| this._noPunctuationRegex = /[^ !%&()*+,-.:;<=>?\[\]\^{|}~]+/; |
| this._lineBreak = "\n"; |
| } |
| |
| WebInspector.TextEditorModel.Indent = { |
| TwoSpaces: " ", |
| FourSpaces: " ", |
| EightSpaces: " ", |
| TabCharacter: "\t" |
| } |
| |
| WebInspector.TextEditorModel.Events = { |
| TextChanged: "TextChanged" |
| } |
| |
| WebInspector.TextEditorModel.endsWithBracketRegex = /[{(\[]\s*$/; |
| |
| WebInspector.TextEditorModel.prototype = { |
| /** |
| * @return {number} |
| */ |
| get linesCount() |
| { |
| return this._lines.length; |
| }, |
| |
| /** |
| * @return {string} |
| */ |
| text: function() |
| { |
| return this._lines.join(this._lineBreak); |
| }, |
| |
| /** |
| * @return {WebInspector.TextRange} |
| */ |
| range: function() |
| { |
| return new WebInspector.TextRange(0, 0, this._lines.length - 1, this._lines[this._lines.length - 1].length); |
| }, |
| |
| /** |
| * @return {string} |
| */ |
| get lineBreak() |
| { |
| return this._lineBreak; |
| }, |
| |
| /** |
| * @param {number} lineNumber |
| * @return {string} |
| */ |
| line: function(lineNumber) |
| { |
| if (lineNumber >= this._lines.length) |
| throw "Out of bounds:" + lineNumber; |
| return this._lines[lineNumber]; |
| }, |
| |
| /** |
| * @param {number} lineNumber |
| * @return {number} |
| */ |
| lineLength: function(lineNumber) |
| { |
| return this._lines[lineNumber].length; |
| }, |
| |
| /** |
| * @param {string} text |
| */ |
| setText: function(text) |
| { |
| text = text || ""; |
| var range = this.range(); |
| this._lineBreak = /\r\n/.test(text) ? "\r\n" : "\n"; |
| var newRange = this._innerSetText(range, text); |
| this.dispatchEventToListeners(WebInspector.TextEditorModel.Events.TextChanged, { oldRange: range, newRange: newRange}); |
| }, |
| |
| /** |
| * @param {WebInspector.TextRange} range |
| * @param {string} text |
| * @return {WebInspector.TextRange} |
| */ |
| editRange: function(range, text) |
| { |
| var originalText = this.copyRange(range); |
| if (text === originalText) |
| return range; // Noop |
| |
| var newRange = this._innerSetText(range, text); |
| this._pushUndoableCommand(newRange, originalText); |
| this.dispatchEventToListeners(WebInspector.TextEditorModel.Events.TextChanged, { oldRange: range, newRange: newRange }); |
| return newRange; |
| }, |
| |
| /** |
| * @param {WebInspector.TextRange} range |
| * @param {string} text |
| * @return {WebInspector.TextRange} |
| */ |
| _innerSetText: function(range, text) |
| { |
| this._eraseRange(range); |
| if (text === "") |
| return new WebInspector.TextRange(range.startLine, range.startColumn, range.startLine, range.startColumn); |
| |
| var newLines = text.split(/\r?\n/); |
| |
| var prefix = this._lines[range.startLine].substring(0, range.startColumn); |
| var suffix = this._lines[range.startLine].substring(range.startColumn); |
| |
| var postCaret = prefix.length; |
| // Insert text. |
| if (newLines.length === 1) { |
| this._setLine(range.startLine, prefix + newLines[0] + suffix); |
| postCaret += newLines[0].length; |
| } else { |
| this._setLine(range.startLine, prefix + newLines[0]); |
| this._insertLines(range, newLines); |
| this._setLine(range.startLine + newLines.length - 1, newLines[newLines.length - 1] + suffix); |
| postCaret = newLines[newLines.length - 1].length; |
| } |
| |
| return new WebInspector.TextRange(range.startLine, range.startColumn, |
| range.startLine + newLines.length - 1, postCaret); |
| }, |
| |
| /** |
| * @param {WebInspector.TextRange} range |
| * @param {Array.<string>} newLines |
| */ |
| _insertLines: function(range, newLines) |
| { |
| var lines = new Array(this._lines.length + newLines.length - 1); |
| for (var i = 0; i <= range.startLine; ++i) |
| lines[i] = this._lines[i]; |
| // Line at [0] is already set via setLine. |
| for (var i = 1; i < newLines.length; ++i) |
| lines[range.startLine + i] = newLines[i]; |
| for (var i = range.startLine + newLines.length; i < lines.length; ++i) |
| lines[i] = this._lines[i - newLines.length + 1]; |
| this._lines = lines; |
| |
| // Adjust attributes, attributes move with the first character of line. |
| var attributes = new Array(lines.length); |
| var insertionIndex = range.startColumn ? range.startLine + 1 : range.startLine; |
| for (var i = 0; i < insertionIndex; ++i) |
| attributes[i] = this._attributes[i]; |
| for (var i = insertionIndex + newLines.length - 1; i < attributes.length; ++i) |
| attributes[i] = this._attributes[i - newLines.length + 1]; |
| this._attributes = attributes; |
| }, |
| |
| /** |
| * @param {WebInspector.TextRange} range |
| */ |
| _eraseRange: function(range) |
| { |
| if (range.isEmpty()) |
| return; |
| |
| var prefix = this._lines[range.startLine].substring(0, range.startColumn); |
| var suffix = this._lines[range.endLine].substring(range.endColumn); |
| |
| if (range.endLine > range.startLine) { |
| this._lines.splice(range.startLine + 1, range.endLine - range.startLine); |
| // Adjust attributes, attributes move with the first character of line. |
| this._attributes.splice(range.startColumn ? range.startLine + 1 : range.startLine, range.endLine - range.startLine); |
| } |
| this._setLine(range.startLine, prefix + suffix); |
| }, |
| |
| /** |
| * @param {number} lineNumber |
| * @param {string} text |
| */ |
| _setLine: function(lineNumber, text) |
| { |
| this._lines[lineNumber] = text; |
| }, |
| |
| /** |
| * @param {number} lineNumber |
| * @param {number} column |
| * @return {WebInspector.TextRange} |
| */ |
| wordRange: function(lineNumber, column) |
| { |
| return new WebInspector.TextRange(lineNumber, this.wordStart(lineNumber, column, true), lineNumber, this.wordEnd(lineNumber, column, true)); |
| }, |
| |
| /** |
| * @param {number} lineNumber |
| * @param {number} column |
| * @param {boolean} gapless |
| * @return {number} |
| */ |
| wordStart: function(lineNumber, column, gapless) |
| { |
| var line = this._lines[lineNumber]; |
| var prefix = line.substring(0, column).split("").reverse().join(""); |
| var prefixMatch = this._noPunctuationRegex.exec(prefix); |
| return prefixMatch && (!gapless || prefixMatch.index === 0) ? column - prefixMatch.index - prefixMatch[0].length : column; |
| }, |
| |
| /** |
| * @param {number} lineNumber |
| * @param {number} column |
| * @param {boolean} gapless |
| * @return {number} |
| */ |
| wordEnd: function(lineNumber, column, gapless) |
| { |
| var line = this._lines[lineNumber]; |
| var suffix = line.substring(column); |
| var suffixMatch = this._noPunctuationRegex.exec(suffix); |
| return suffixMatch && (!gapless || suffixMatch.index === 0) ? column + suffixMatch.index + suffixMatch[0].length : column; |
| }, |
| |
| /** |
| * @param {WebInspector.TextRange} range |
| * @return {string} |
| */ |
| copyRange: function(range) |
| { |
| if (!range) |
| range = this.range(); |
| |
| var clip = []; |
| if (range.startLine === range.endLine) { |
| clip.push(this._lines[range.startLine].substring(range.startColumn, range.endColumn)); |
| return clip.join(this._lineBreak); |
| } |
| clip.push(this._lines[range.startLine].substring(range.startColumn)); |
| for (var i = range.startLine + 1; i < range.endLine; ++i) |
| clip.push(this._lines[i]); |
| clip.push(this._lines[range.endLine].substring(0, range.endColumn)); |
| return clip.join(this._lineBreak); |
| }, |
| |
| /** |
| * @param {number} line |
| * @param {string} name |
| * @param {Object?} value |
| */ |
| setAttribute: function(line, name, value) |
| { |
| var attrs = this._attributes[line]; |
| if (!attrs) { |
| attrs = {}; |
| this._attributes[line] = attrs; |
| } |
| attrs[name] = value; |
| }, |
| |
| /** |
| * @param {number} line |
| * @param {string} name |
| * @return {Object|null} value |
| */ |
| getAttribute: function(line, name) |
| { |
| var attrs = this._attributes[line]; |
| return attrs ? attrs[name] : null; |
| }, |
| |
| /** |
| * @param {number} line |
| * @param {string} name |
| */ |
| removeAttribute: function(line, name) |
| { |
| var attrs = this._attributes[line]; |
| if (attrs) |
| delete attrs[name]; |
| }, |
| |
| /** |
| * @param {WebInspector.TextRange} newRange |
| * @param {string} originalText |
| * @return {WebInspector.TextEditorCommand} |
| */ |
| _pushUndoableCommand: function(newRange, originalText) |
| { |
| var command = new WebInspector.TextEditorCommand(newRange.clone(), originalText); |
| if (this._inUndo) |
| this._redoStack.push(command); |
| else { |
| if (!this._inRedo) |
| this._redoStack = []; |
| this._undoStack.push(command); |
| } |
| return command; |
| }, |
| |
| /** |
| * @param {function()=} beforeCallback |
| * @param {function(WebInspector.TextRange, WebInspector.TextRange)=} afterCallback |
| * @return {?WebInspector.TextRange} |
| */ |
| undo: function(beforeCallback, afterCallback) |
| { |
| if (!this._undoStack.length) |
| return null; |
| |
| this._markRedoableState(); |
| |
| this._inUndo = true; |
| var range = this._doUndo(this._undoStack, beforeCallback, afterCallback); |
| delete this._inUndo; |
| |
| return range; |
| }, |
| |
| /** |
| * @param {function()=} beforeCallback |
| * @param {function(WebInspector.TextRange, WebInspector.TextRange)=} afterCallback |
| * @return {WebInspector.TextRange} |
| */ |
| redo: function(beforeCallback, afterCallback) |
| { |
| if (!this._redoStack || !this._redoStack.length) |
| return null; |
| this.markUndoableState(); |
| |
| this._inRedo = true; |
| var range = this._doUndo(this._redoStack, beforeCallback, afterCallback); |
| delete this._inRedo; |
| |
| return range; |
| }, |
| |
| /** |
| * @param {Array.<WebInspector.TextEditorCommand>} stack |
| * @param {function()=} beforeCallback |
| * @param {function(WebInspector.TextRange, WebInspector.TextRange)=} afterCallback |
| * @return {WebInspector.TextRange} |
| */ |
| _doUndo: function(stack, beforeCallback, afterCallback) |
| { |
| var range = null; |
| for (var i = stack.length - 1; i >= 0; --i) { |
| var command = stack[i]; |
| stack.length = i; |
| |
| if (beforeCallback) |
| beforeCallback(); |
| |
| range = this.editRange(command.newRange, command.originalText); |
| |
| if (afterCallback) |
| afterCallback(command.newRange, range); |
| |
| if (i > 0 && stack[i - 1].explicit) |
| return range; |
| } |
| return range; |
| }, |
| |
| markUndoableState: function() |
| { |
| if (this._undoStack.length) |
| this._undoStack[this._undoStack.length - 1].explicit = true; |
| }, |
| |
| _markRedoableState: function() |
| { |
| if (this._redoStack.length) |
| this._redoStack[this._redoStack.length - 1].explicit = true; |
| }, |
| |
| resetUndoStack: function() |
| { |
| this._undoStack = []; |
| }, |
| |
| __proto__: WebInspector.Object.prototype |
| } |
