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920 lines
27 KiB
JavaScript
Executable file
920 lines
27 KiB
JavaScript
Executable file
/* ***** BEGIN LICENSE BLOCK *****
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* Distributed under the BSD license:
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*
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* Copyright (c) 2010, Ajax.org B.V.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of Ajax.org B.V. nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL AJAX.ORG B.V. BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* ***** END LICENSE BLOCK ***** */
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define(function(require, exports, module) {
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"use strict";
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var oop = require("./lib/oop");
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var lang = require("./lib/lang");
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var EventEmitter = require("./lib/event_emitter").EventEmitter;
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var Range = require("./range").Range;
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/**
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*
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* Contains the cursor position and the text selection of an edit session.
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*
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* The row/columns used in the selection are in document coordinates representing ths coordinates as thez appear in the document before applying soft wrap and folding.
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* @class Selection
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**/
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/**
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* Emitted when the cursor position changes.
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* @event changeCursor
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*
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*
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*
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**/
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/**
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* Emitted when the cursor selection changes.
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* @event changeSelection
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*
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*
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*
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**/
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/**
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* Creates a new `Selection` object.
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* @param {EditSession} session The session to use
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*
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*
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*
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* @constructor
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**/
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var Selection = function(session) {
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this.session = session;
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this.doc = session.getDocument();
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this.clearSelection();
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this.lead = this.selectionLead = this.doc.createAnchor(0, 0);
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this.anchor = this.selectionAnchor = this.doc.createAnchor(0, 0);
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var self = this;
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this.lead.on("change", function(e) {
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self._emit("changeCursor");
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if (!self.$isEmpty)
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self._emit("changeSelection");
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if (!self.$keepDesiredColumnOnChange && e.old.column != e.value.column)
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self.$desiredColumn = null;
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});
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this.selectionAnchor.on("change", function() {
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if (!self.$isEmpty)
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self._emit("changeSelection");
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});
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};
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(function() {
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oop.implement(this, EventEmitter);
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/**
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*
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* Returns `true` if the selection is empty.
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* @returns {Boolean}
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**/
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this.isEmpty = function() {
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return (this.$isEmpty || (
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this.anchor.row == this.lead.row &&
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this.anchor.column == this.lead.column
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));
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};
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/**
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* Returns `true` if the selection is a multi-line.
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* @returns {Boolean}
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**/
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this.isMultiLine = function() {
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if (this.isEmpty()) {
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return false;
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}
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return this.getRange().isMultiLine();
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};
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/**
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* Gets the current position of the cursor.
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* @returns {Number}
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**/
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this.getCursor = function() {
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return this.lead.getPosition();
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};
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/**
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* Sets the row and column position of the anchor. This function also emits the `'changeSelection'` event.
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* @param {Number} row The new row
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* @param {Number} column The new column
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*
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*
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**/
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this.setSelectionAnchor = function(row, column) {
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this.anchor.setPosition(row, column);
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if (this.$isEmpty) {
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this.$isEmpty = false;
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this._emit("changeSelection");
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}
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};
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/**
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* Returns an object containing the `row` and `column` of the calling selection anchor.
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*
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* @returns {Object}
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* @related Anchor.getPosition
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**/
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this.getSelectionAnchor = function() {
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if (this.$isEmpty)
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return this.getSelectionLead()
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else
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return this.anchor.getPosition();
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};
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/**
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*
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* Returns an object containing the `row` and `column` of the calling selection lead.
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* @returns {Object}
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**/
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this.getSelectionLead = function() {
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return this.lead.getPosition();
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};
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/**
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* Shifts the selection up (or down, if [[Selection.isBackwards `isBackwards()`]] is true) the given number of columns.
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* @param {Number} columns The number of columns to shift by
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*
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*
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*
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**/
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this.shiftSelection = function(columns) {
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if (this.$isEmpty) {
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this.moveCursorTo(this.lead.row, this.lead.column + columns);
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return;
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};
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var anchor = this.getSelectionAnchor();
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var lead = this.getSelectionLead();
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var isBackwards = this.isBackwards();
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if (!isBackwards || anchor.column !== 0)
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this.setSelectionAnchor(anchor.row, anchor.column + columns);
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if (isBackwards || lead.column !== 0) {
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this.$moveSelection(function() {
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this.moveCursorTo(lead.row, lead.column + columns);
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});
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}
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};
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/**
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* Returns `true` if the selection is going backwards in the document.
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* @returns {Boolean}
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**/
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this.isBackwards = function() {
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var anchor = this.anchor;
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var lead = this.lead;
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return (anchor.row > lead.row || (anchor.row == lead.row && anchor.column > lead.column));
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};
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/**
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* [Returns the [[Range]] for the selected text.]{: #Selection.getRange}
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* @returns {Range}
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**/
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this.getRange = function() {
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var anchor = this.anchor;
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var lead = this.lead;
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if (this.isEmpty())
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return Range.fromPoints(lead, lead);
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if (this.isBackwards()) {
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return Range.fromPoints(lead, anchor);
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}
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else {
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return Range.fromPoints(anchor, lead);
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}
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};
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/**
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* [Empties the selection (by de-selecting it). This function also emits the `'changeSelection'` event.]{: #Selection.clearSelection}
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**/
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this.clearSelection = function() {
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if (!this.$isEmpty) {
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this.$isEmpty = true;
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this._emit("changeSelection");
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}
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};
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/**
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* Selects all the text in the document.
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**/
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this.selectAll = function() {
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var lastRow = this.doc.getLength() - 1;
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this.setSelectionAnchor(0, 0);
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this.moveCursorTo(lastRow, this.doc.getLine(lastRow).length);
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};
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/**
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* Sets the selection to the provided range.
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* @param {Range} range The range of text to select
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* @param {Boolean} reverse Indicates if the range should go backwards (`true`) or not
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*
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*
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* @method setSelectionRange
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* @alias setRange
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**/
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this.setRange =
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this.setSelectionRange = function(range, reverse) {
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if (reverse) {
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this.setSelectionAnchor(range.end.row, range.end.column);
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this.selectTo(range.start.row, range.start.column);
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} else {
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this.setSelectionAnchor(range.start.row, range.start.column);
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this.selectTo(range.end.row, range.end.column);
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}
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if (this.getRange().isEmpty())
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this.$isEmpty = true;
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this.$desiredColumn = null;
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};
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this.$moveSelection = function(mover) {
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var lead = this.lead;
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if (this.$isEmpty)
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this.setSelectionAnchor(lead.row, lead.column);
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mover.call(this);
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};
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/**
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* Moves the selection cursor to the indicated row and column.
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* @param {Number} row The row to select to
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* @param {Number} column The column to select to
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*
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*
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*
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**/
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this.selectTo = function(row, column) {
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this.$moveSelection(function() {
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this.moveCursorTo(row, column);
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});
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};
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/**
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* Moves the selection cursor to the row and column indicated by `pos`.
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* @param {Object} pos An object containing the row and column
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*
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*
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*
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**/
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this.selectToPosition = function(pos) {
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this.$moveSelection(function() {
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this.moveCursorToPosition(pos);
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});
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};
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/**
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*
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* Moves the selection up one row.
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**/
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this.selectUp = function() {
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this.$moveSelection(this.moveCursorUp);
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};
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/**
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*
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* Moves the selection down one row.
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**/
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this.selectDown = function() {
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this.$moveSelection(this.moveCursorDown);
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};
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/**
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*
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*
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* Moves the selection right one column.
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**/
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this.selectRight = function() {
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this.$moveSelection(this.moveCursorRight);
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};
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/**
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*
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* Moves the selection left one column.
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**/
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this.selectLeft = function() {
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this.$moveSelection(this.moveCursorLeft);
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};
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/**
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*
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* Moves the selection to the beginning of the current line.
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**/
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this.selectLineStart = function() {
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this.$moveSelection(this.moveCursorLineStart);
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};
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/**
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*
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* Moves the selection to the end of the current line.
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**/
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this.selectLineEnd = function() {
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this.$moveSelection(this.moveCursorLineEnd);
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};
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/**
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*
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* Moves the selection to the end of the file.
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**/
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this.selectFileEnd = function() {
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this.$moveSelection(this.moveCursorFileEnd);
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};
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/**
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*
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* Moves the selection to the start of the file.
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**/
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this.selectFileStart = function() {
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this.$moveSelection(this.moveCursorFileStart);
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};
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/**
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*
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* Moves the selection to the first word on the right.
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**/
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this.selectWordRight = function() {
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this.$moveSelection(this.moveCursorWordRight);
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};
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/**
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*
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* Moves the selection to the first word on the left.
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**/
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this.selectWordLeft = function() {
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this.$moveSelection(this.moveCursorWordLeft);
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};
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/**
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* Moves the selection to highlight the entire word.
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* @related EditSession.getWordRange
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**/
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this.getWordRange = function(row, column) {
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if (typeof column == "undefined") {
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var cursor = row || this.lead;
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row = cursor.row;
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column = cursor.column;
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}
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return this.session.getWordRange(row, column);
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};
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/**
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*
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* Selects an entire word boundary.
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**/
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this.selectWord = function() {
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this.setSelectionRange(this.getWordRange());
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};
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/**
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* Selects a word, including its right whitespace.
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* @related EditSession.getAWordRange
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**/
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this.selectAWord = function() {
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var cursor = this.getCursor();
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var range = this.session.getAWordRange(cursor.row, cursor.column);
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this.setSelectionRange(range);
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};
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this.getLineRange = function(row, excludeLastChar) {
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var rowStart = typeof row == "number" ? row : this.lead.row;
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var rowEnd;
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var foldLine = this.session.getFoldLine(rowStart);
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if (foldLine) {
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rowStart = foldLine.start.row;
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rowEnd = foldLine.end.row;
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} else {
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rowEnd = rowStart;
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}
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if (excludeLastChar === true)
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return new Range(rowStart, 0, rowEnd, this.session.getLine(rowEnd).length);
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else
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return new Range(rowStart, 0, rowEnd + 1, 0);
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};
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/**
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* Selects the entire line.
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**/
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this.selectLine = function() {
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this.setSelectionRange(this.getLineRange());
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};
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/**
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*
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* Moves the cursor up one row.
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**/
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this.moveCursorUp = function() {
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this.moveCursorBy(-1, 0);
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};
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/**
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*
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* Moves the cursor down one row.
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**/
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this.moveCursorDown = function() {
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this.moveCursorBy(1, 0);
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};
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/**
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*
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* Moves the cursor left one column.
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**/
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this.moveCursorLeft = function() {
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var cursor = this.lead.getPosition(),
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fold;
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if (fold = this.session.getFoldAt(cursor.row, cursor.column, -1)) {
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this.moveCursorTo(fold.start.row, fold.start.column);
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} else if (cursor.column == 0) {
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// cursor is a line (start
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if (cursor.row > 0) {
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this.moveCursorTo(cursor.row - 1, this.doc.getLine(cursor.row - 1).length);
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}
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}
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else {
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var tabSize = this.session.getTabSize();
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if (this.session.isTabStop(cursor) && this.doc.getLine(cursor.row).slice(cursor.column-tabSize, cursor.column).split(" ").length-1 == tabSize)
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this.moveCursorBy(0, -tabSize);
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else
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this.moveCursorBy(0, -1);
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}
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};
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/**
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*
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* Moves the cursor right one column.
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**/
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this.moveCursorRight = function() {
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var cursor = this.lead.getPosition(),
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fold;
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if (fold = this.session.getFoldAt(cursor.row, cursor.column, 1)) {
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this.moveCursorTo(fold.end.row, fold.end.column);
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}
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else if (this.lead.column == this.doc.getLine(this.lead.row).length) {
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if (this.lead.row < this.doc.getLength() - 1) {
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this.moveCursorTo(this.lead.row + 1, 0);
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}
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}
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else {
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var tabSize = this.session.getTabSize();
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var cursor = this.lead;
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if (this.session.isTabStop(cursor) && this.doc.getLine(cursor.row).slice(cursor.column, cursor.column+tabSize).split(" ").length-1 == tabSize)
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this.moveCursorBy(0, tabSize);
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else
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this.moveCursorBy(0, 1);
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}
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};
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/**
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*
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* Moves the cursor to the start of the line.
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**/
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this.moveCursorLineStart = function() {
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var row = this.lead.row;
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var column = this.lead.column;
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var screenRow = this.session.documentToScreenRow(row, column);
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// Determ the doc-position of the first character at the screen line.
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var firstColumnPosition = this.session.screenToDocumentPosition(screenRow, 0);
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// Determ the line
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var beforeCursor = this.session.getDisplayLine(
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row, null, firstColumnPosition.row,
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firstColumnPosition.column
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);
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var leadingSpace = beforeCursor.match(/^\s*/);
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// TODO find better way for emacs mode to override selection behaviors
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if (leadingSpace[0].length != column && !this.session.$useEmacsStyleLineStart)
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firstColumnPosition.column += leadingSpace[0].length;
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this.moveCursorToPosition(firstColumnPosition);
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};
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/**
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*
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* Moves the cursor to the end of the line.
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**/
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this.moveCursorLineEnd = function() {
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var lead = this.lead;
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var lineEnd = this.session.getDocumentLastRowColumnPosition(lead.row, lead.column);
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if (this.lead.column == lineEnd.column) {
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var line = this.session.getLine(lineEnd.row);
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if (lineEnd.column == line.length) {
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var textEnd = line.search(/\s+$/);
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if (textEnd > 0)
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lineEnd.column = textEnd;
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}
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}
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this.moveCursorTo(lineEnd.row, lineEnd.column);
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};
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/**
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*
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* Moves the cursor to the end of the file.
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**/
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this.moveCursorFileEnd = function() {
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var row = this.doc.getLength() - 1;
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var column = this.doc.getLine(row).length;
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this.moveCursorTo(row, column);
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};
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/**
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*
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* Moves the cursor to the start of the file.
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**/
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this.moveCursorFileStart = function() {
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this.moveCursorTo(0, 0);
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};
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/**
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*
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* Moves the cursor to the word on the right.
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**/
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this.moveCursorLongWordRight = function() {
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var row = this.lead.row;
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var column = this.lead.column;
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var line = this.doc.getLine(row);
|
|
var rightOfCursor = line.substring(column);
|
|
|
|
var match;
|
|
this.session.nonTokenRe.lastIndex = 0;
|
|
this.session.tokenRe.lastIndex = 0;
|
|
|
|
// skip folds
|
|
var fold = this.session.getFoldAt(row, column, 1);
|
|
if (fold) {
|
|
this.moveCursorTo(fold.end.row, fold.end.column);
|
|
return;
|
|
}
|
|
|
|
// first skip space
|
|
if (match = this.session.nonTokenRe.exec(rightOfCursor)) {
|
|
column += this.session.nonTokenRe.lastIndex;
|
|
this.session.nonTokenRe.lastIndex = 0;
|
|
rightOfCursor = line.substring(column);
|
|
}
|
|
|
|
// if at line end proceed with next line
|
|
if (column >= line.length) {
|
|
this.moveCursorTo(row, line.length);
|
|
this.moveCursorRight();
|
|
if (row < this.doc.getLength() - 1)
|
|
this.moveCursorWordRight();
|
|
return;
|
|
}
|
|
|
|
// advance to the end of the next token
|
|
if (match = this.session.tokenRe.exec(rightOfCursor)) {
|
|
column += this.session.tokenRe.lastIndex;
|
|
this.session.tokenRe.lastIndex = 0;
|
|
}
|
|
|
|
this.moveCursorTo(row, column);
|
|
};
|
|
|
|
/**
|
|
*
|
|
* Moves the cursor to the word on the left.
|
|
**/
|
|
this.moveCursorLongWordLeft = function() {
|
|
var row = this.lead.row;
|
|
var column = this.lead.column;
|
|
|
|
// skip folds
|
|
var fold;
|
|
if (fold = this.session.getFoldAt(row, column, -1)) {
|
|
this.moveCursorTo(fold.start.row, fold.start.column);
|
|
return;
|
|
}
|
|
|
|
var str = this.session.getFoldStringAt(row, column, -1);
|
|
if (str == null) {
|
|
str = this.doc.getLine(row).substring(0, column)
|
|
}
|
|
|
|
var leftOfCursor = lang.stringReverse(str);
|
|
var match;
|
|
this.session.nonTokenRe.lastIndex = 0;
|
|
this.session.tokenRe.lastIndex = 0;
|
|
|
|
// skip whitespace
|
|
if (match = this.session.nonTokenRe.exec(leftOfCursor)) {
|
|
column -= this.session.nonTokenRe.lastIndex;
|
|
leftOfCursor = leftOfCursor.slice(this.session.nonTokenRe.lastIndex);
|
|
this.session.nonTokenRe.lastIndex = 0;
|
|
}
|
|
|
|
// if at begin of the line proceed in line above
|
|
if (column <= 0) {
|
|
this.moveCursorTo(row, 0);
|
|
this.moveCursorLeft();
|
|
if (row > 0)
|
|
this.moveCursorWordLeft();
|
|
return;
|
|
}
|
|
|
|
// move to the begin of the word
|
|
if (match = this.session.tokenRe.exec(leftOfCursor)) {
|
|
column -= this.session.tokenRe.lastIndex;
|
|
this.session.tokenRe.lastIndex = 0;
|
|
}
|
|
|
|
this.moveCursorTo(row, column);
|
|
};
|
|
|
|
this.$shortWordEndIndex = function(rightOfCursor) {
|
|
var match, index = 0, ch;
|
|
var whitespaceRe = /\s/;
|
|
var tokenRe = this.session.tokenRe;
|
|
|
|
tokenRe.lastIndex = 0;
|
|
if (match = this.session.tokenRe.exec(rightOfCursor)) {
|
|
index = this.session.tokenRe.lastIndex;
|
|
} else {
|
|
while ((ch = rightOfCursor[index]) && whitespaceRe.test(ch))
|
|
index ++;
|
|
|
|
if (index < 1) {
|
|
tokenRe.lastIndex = 0;
|
|
while ((ch = rightOfCursor[index]) && !tokenRe.test(ch)) {
|
|
tokenRe.lastIndex = 0;
|
|
index ++;
|
|
if (whitespaceRe.test(ch)) {
|
|
if (index > 2) {
|
|
index--
|
|
break;
|
|
} else {
|
|
while ((ch = rightOfCursor[index]) && whitespaceRe.test(ch))
|
|
index ++;
|
|
if (index > 2)
|
|
break
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
tokenRe.lastIndex = 0;
|
|
|
|
return index;
|
|
};
|
|
|
|
this.moveCursorShortWordRight = function() {
|
|
var row = this.lead.row;
|
|
var column = this.lead.column;
|
|
var line = this.doc.getLine(row);
|
|
var rightOfCursor = line.substring(column);
|
|
|
|
var fold = this.session.getFoldAt(row, column, 1);
|
|
if (fold)
|
|
return this.moveCursorTo(fold.end.row, fold.end.column);
|
|
|
|
if (column == line.length) {
|
|
var l = this.doc.getLength();
|
|
do {
|
|
row++;
|
|
rightOfCursor = this.doc.getLine(row)
|
|
} while (row < l && /^\s*$/.test(rightOfCursor))
|
|
|
|
if (!/^\s+/.test(rightOfCursor))
|
|
rightOfCursor = ""
|
|
column = 0;
|
|
}
|
|
|
|
var index = this.$shortWordEndIndex(rightOfCursor);
|
|
|
|
this.moveCursorTo(row, column + index);
|
|
};
|
|
|
|
this.moveCursorShortWordLeft = function() {
|
|
var row = this.lead.row;
|
|
var column = this.lead.column;
|
|
|
|
var fold;
|
|
if (fold = this.session.getFoldAt(row, column, -1))
|
|
return this.moveCursorTo(fold.start.row, fold.start.column);
|
|
|
|
var line = this.session.getLine(row).substring(0, column);
|
|
if (column == 0) {
|
|
do {
|
|
row--;
|
|
line = this.doc.getLine(row);
|
|
} while (row > 0 && /^\s*$/.test(line))
|
|
|
|
column = line.length;
|
|
if (!/\s+$/.test(line))
|
|
line = ""
|
|
}
|
|
|
|
var leftOfCursor = lang.stringReverse(line);
|
|
var index = this.$shortWordEndIndex(leftOfCursor);
|
|
|
|
return this.moveCursorTo(row, column - index);
|
|
};
|
|
|
|
this.moveCursorWordRight = function() {
|
|
if (this.session.$selectLongWords)
|
|
this.moveCursorLongWordRight();
|
|
else
|
|
this.moveCursorShortWordRight();
|
|
};
|
|
|
|
this.moveCursorWordLeft = function() {
|
|
if (this.session.$selectLongWords)
|
|
this.moveCursorLongWordLeft();
|
|
else
|
|
this.moveCursorShortWordLeft();
|
|
};
|
|
|
|
/**
|
|
* Moves the cursor to position indicated by the parameters. Negative numbers move the cursor backwards in the document.
|
|
* @param {Number} rows The number of rows to move by
|
|
* @param {Number} chars The number of characters to move by
|
|
*
|
|
*
|
|
* @related EditSession.documentToScreenPosition
|
|
**/
|
|
this.moveCursorBy = function(rows, chars) {
|
|
var screenPos = this.session.documentToScreenPosition(
|
|
this.lead.row,
|
|
this.lead.column
|
|
);
|
|
|
|
if (chars === 0) {
|
|
if (this.$desiredColumn)
|
|
screenPos.column = this.$desiredColumn;
|
|
else
|
|
this.$desiredColumn = screenPos.column;
|
|
}
|
|
|
|
var docPos = this.session.screenToDocumentPosition(screenPos.row + rows, screenPos.column);
|
|
|
|
if (rows !== 0 && chars === 0 && docPos.row === this.lead.row && docPos.column === this.lead.column) {
|
|
if (this.session.lineWidgets && this.session.lineWidgets[docPos.row])
|
|
docPos.row++;
|
|
}
|
|
|
|
// move the cursor and update the desired column
|
|
this.moveCursorTo(docPos.row, docPos.column + chars, chars === 0);
|
|
};
|
|
|
|
/**
|
|
* Moves the selection to the position indicated by its `row` and `column`.
|
|
* @param {Object} position The position to move to
|
|
*
|
|
*
|
|
**/
|
|
this.moveCursorToPosition = function(position) {
|
|
this.moveCursorTo(position.row, position.column);
|
|
};
|
|
|
|
/**
|
|
* Moves the cursor to the row and column provided. [If `preventUpdateDesiredColumn` is `true`, then the cursor stays in the same column position as its original point.]{: #preventUpdateBoolDesc}
|
|
* @param {Number} row The row to move to
|
|
* @param {Number} column The column to move to
|
|
* @param {Boolean} keepDesiredColumn [If `true`, the cursor move does not respect the previous column]{: #preventUpdateBool}
|
|
*
|
|
*
|
|
**/
|
|
this.moveCursorTo = function(row, column, keepDesiredColumn) {
|
|
// Ensure the row/column is not inside of a fold.
|
|
var fold = this.session.getFoldAt(row, column, 1);
|
|
if (fold) {
|
|
row = fold.start.row;
|
|
column = fold.start.column;
|
|
}
|
|
|
|
this.$keepDesiredColumnOnChange = true;
|
|
this.lead.setPosition(row, column);
|
|
this.$keepDesiredColumnOnChange = false;
|
|
|
|
if (!keepDesiredColumn)
|
|
this.$desiredColumn = null;
|
|
};
|
|
|
|
/**
|
|
* Moves the cursor to the screen position indicated by row and column. {:preventUpdateBoolDesc}
|
|
* @param {Number} row The row to move to
|
|
* @param {Number} column The column to move to
|
|
* @param {Boolean} keepDesiredColumn {:preventUpdateBool}
|
|
*
|
|
*
|
|
**/
|
|
this.moveCursorToScreen = function(row, column, keepDesiredColumn) {
|
|
var pos = this.session.screenToDocumentPosition(row, column);
|
|
this.moveCursorTo(pos.row, pos.column, keepDesiredColumn);
|
|
};
|
|
|
|
// remove listeners from document
|
|
this.detach = function() {
|
|
this.lead.detach();
|
|
this.anchor.detach();
|
|
this.session = this.doc = null;
|
|
}
|
|
|
|
this.fromOrientedRange = function(range) {
|
|
this.setSelectionRange(range, range.cursor == range.start);
|
|
this.$desiredColumn = range.desiredColumn || this.$desiredColumn;
|
|
}
|
|
|
|
this.toOrientedRange = function(range) {
|
|
var r = this.getRange();
|
|
if (range) {
|
|
range.start.column = r.start.column;
|
|
range.start.row = r.start.row;
|
|
range.end.column = r.end.column;
|
|
range.end.row = r.end.row;
|
|
} else {
|
|
range = r;
|
|
}
|
|
|
|
range.cursor = this.isBackwards() ? range.start : range.end;
|
|
range.desiredColumn = this.$desiredColumn;
|
|
return range;
|
|
}
|
|
|
|
this.toJSON = function() {
|
|
if (this.rangeCount) {
|
|
var data = this.ranges.map(function(r) {
|
|
var r1 = r.clone();
|
|
r1.isBackwards = r.cursor == r.start;
|
|
return r1;
|
|
});
|
|
} else {
|
|
var data = this.getRange();
|
|
data.isBackwards = this.isBackwards();
|
|
}
|
|
return data;
|
|
};
|
|
|
|
this.fromJSON = function(data) {
|
|
if (data.start == undefined) {
|
|
if (this.rangeList) {
|
|
this.toSingleRange(data[0]);
|
|
for (var i = data.length; i--; ) {
|
|
var r = Range.fromPoints(data[i].start, data[i].end);
|
|
if (data.isBackwards)
|
|
r.cursor = r.start;
|
|
this.addRange(r, true);
|
|
}
|
|
return;
|
|
} else
|
|
data = data[0];
|
|
}
|
|
if (this.rangeList)
|
|
this.toSingleRange(data);
|
|
this.setSelectionRange(data, data.isBackwards);
|
|
};
|
|
|
|
this.isEqual = function(data) {
|
|
if ((data.length || this.rangeCount) && data.length != this.rangeCount)
|
|
return false;
|
|
if (!data.length || !this.ranges)
|
|
return this.getRange().isEqual(data);
|
|
|
|
for (var i = this.ranges.length; i--; ) {
|
|
if (!this.ranges[i].isEqual(data[i]))
|
|
return false
|
|
}
|
|
return true;
|
|
}
|
|
|
|
}).call(Selection.prototype);
|
|
|
|
exports.Selection = Selection;
|
|
});
|