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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/*
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* @package atto_rtl
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* @copyright 2014 Jerome Mouneyrac
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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/**
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* @module moodle-atto_rtl-button
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*/
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/**
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* Atto text editor rtl plugin.
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*
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* @namespace M.atto_rtl
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* @class button
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* @extends M.editor_atto.EditorPlugin
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*/
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Y.namespace('M.atto_rtl').Button = Y.Base.create('button', Y.M.editor_atto.EditorPlugin, [], {
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initializer: function() {
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var direction;
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direction = 'ltr';
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this.addButton({
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icon: 'e/left_to_right',
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title: direction,
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buttonName: direction,
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callback: this._toggleRTL,
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callbackArgs: direction,
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tags: '[dir=ltr]'
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});
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direction = 'rtl';
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this.addButton({
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icon: 'e/right_to_left',
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title: direction,
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buttonName: direction,
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callback: this._toggleRTL,
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callbackArgs: direction,
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tags: '[dir=rtl]'
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});
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},
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/**
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* Toggle the RTL/LTR values based on the supplied direction.
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*
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* @method _toggleRTL
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* @param {EventFacade} e
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* @param {String} direction
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*/
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_toggleRTL: function(e, direction) {
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var host = this.get('host'),
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sourceSelection = window.rangy.saveSelection(),
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selection = host.getSelection(),
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newDirection = {
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rtl: 'ltr',
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ltr: 'rtl'
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},
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directionAlignment = {
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rtl: 'right',
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ltr: 'left'
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};
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if (selection) {
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// Format the selection to be sure it has a tag parent (not the contenteditable).
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var parentNode = host.formatSelectionBlock(),
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parentDOMNode = parentNode.getDOMNode();
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var currentDirection = parentDOMNode.getAttribute('dir');
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if (currentDirection === direction) {
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parentDOMNode.setAttribute("dir", newDirection[direction]);
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parentDOMNode.style.textAlign = directionAlignment[newDirection[direction]];
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} else {
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parentDOMNode.setAttribute("dir", direction);
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parentDOMNode.style.textAlign = directionAlignment[direction];
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}
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// Change selection from the containing paragraph to the original one.
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window.rangy.restoreSelection(sourceSelection);
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// Mark the text as having been updated.
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this.markUpdated();
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}
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}
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});
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