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// Copyright 2008 The Closure Library Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS-IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
/**
* @fileoverview Editor plugin to handle tab keys in lists to indent and
* outdent.
*
* @author robbyw@google.com (Robby Walker)
* @author ajp@google.com (Andy Perelson)
*/
goog.provide('goog.editor.plugins.ListTabHandler');
goog.require('goog.dom.TagName');
goog.require('goog.editor.Command');
goog.require('goog.editor.plugins.AbstractTabHandler');
/**
* Plugin to handle tab keys in lists to indent and outdent.
* @constructor
* @extends {goog.editor.plugins.AbstractTabHandler}
*/
goog.editor.plugins.ListTabHandler = function() {
goog.editor.plugins.AbstractTabHandler.call(this);
};
goog.inherits(goog.editor.plugins.ListTabHandler,
goog.editor.plugins.AbstractTabHandler);
/** @override */
goog.editor.plugins.ListTabHandler.prototype.getTrogClassId = function() {
return 'ListTabHandler';
};
/** @override */
goog.editor.plugins.ListTabHandler.prototype.handleTabKey = function(e) {
var range = this.getFieldObject().getRange();
if (goog.dom.getAncestorByTagNameAndClass(range.getContainerElement(),
goog.dom.TagName.LI) ||
goog.iter.some(range, function(node) {
return node.tagName == goog.dom.TagName.LI;
})) {
this.getFieldObject().execCommand(e.shiftKey ?
goog.editor.Command.OUTDENT :
goog.editor.Command.INDENT);
e.preventDefault();
return true;
}
return false;
};
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