/**
* @license
* Copyright The Closure Library Authors.
* SPDX-License-Identifier: Apache-2.0
*/
/**
* @fileoverview Editor plugin to handle tab keys in lists to indent and
* outdent.
*/
goog.provide('goog.editor.plugins.ListTabHandler');
goog.require('goog.dom');
goog.require('goog.dom.TagName');
goog.require('goog.editor.Command');
goog.require('goog.editor.plugins.AbstractTabHandler');
goog.require('goog.iter');
/**
* Plugin to handle tab keys in lists to indent and outdent.
* @constructor
* @extends {goog.editor.plugins.AbstractTabHandler}
* @final
*/
goog.editor.plugins.ListTabHandler = function() {
'use strict';
goog.editor.plugins.AbstractTabHandler.call(this);
};
goog.inherits(
goog.editor.plugins.ListTabHandler, goog.editor.plugins.AbstractTabHandler);
/** @override */
goog.editor.plugins.ListTabHandler.prototype.getTrogClassId = function() {
'use strict';
return 'ListTabHandler';
};
/** @override */
goog.editor.plugins.ListTabHandler.prototype.handleTabKey = function(e) {
'use strict';
var range = this.getFieldObject().getRange();
if (goog.dom.getAncestorByTagNameAndClass(
range.getContainerElement(), goog.dom.TagName.LI) ||
goog.iter.some(range, function(node) {
'use strict';
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;
};