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<!--
@license
Copyright (c) 2015 The Polymer Project Authors. All rights reserved.
This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt
The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt
The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt
Code distributed by Google as part of the polymer project is also
subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt
-->
<link rel="import" href="../polymer/polymer.html">
<link rel="import" href="iron-menu-behavior.html">
<script>
/**
* `Polymer.IronMenubarBehavior` implements accessible menubar behavior.
*
* @polymerBehavior Polymer.IronMenubarBehavior
*/
Polymer.IronMenubarBehaviorImpl = {
hostAttributes: {
'role': 'menubar'
},
keyBindings: {
'left': '_onLeftKey',
'right': '_onRightKey'
},
_onUpKey: function(event) {
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this.focusedItem.click();
event.detail.keyboardEvent.preventDefault();
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},
_onDownKey: function(event) {
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this.focusedItem.click();
event.detail.keyboardEvent.preventDefault();
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},
_onLeftKey: function() {
this._focusPrevious();
},
_onRightKey: function() {
this._focusNext();
},
_onKeydown: function(event) {
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if (this.keyboardEventMatchesKeys(event, 'up down left right esc')) {
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return;
}
// all other keys focus the menu item starting with that character
this._focusWithKeyboardEvent(event);
}
};
/** @polymerBehavior Polymer.IronMenubarBehavior */
Polymer.IronMenubarBehavior = [
Polymer.IronMenuBehavior,
Polymer.IronMenubarBehaviorImpl
];
</script>
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