69 lines
2.1 KiB
HTML
69 lines
2.1 KiB
HTML
<!--
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Copyright (C) 2016 The Android Open Source Project
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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-->
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<link rel="import" href="../bower_components/polymer/polymer.html">
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<script>
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(function(window) {
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'use strict';
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/** @polymerBehavior Gerrit.KeyboardShortcutBehavior */
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var KeyboardShortcutBehavior = {
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enabled: true,
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properties: {
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keyEventTarget: {
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type: Object,
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value: function() { return this; },
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},
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_boundKeyHandler: {
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type: Function,
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readonly: true,
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value: function() { return this._handleKey.bind(this); },
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},
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},
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attached: function() {
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this.keyEventTarget.addEventListener('keydown', this._boundKeyHandler);
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},
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detached: function() {
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this.keyEventTarget.removeEventListener('keydown', this._boundKeyHandler);
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},
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shouldSupressKeyboardShortcut: function(e) {
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if (!KeyboardShortcutBehavior.enabled) { return true; }
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var getModifierState = e.getModifierState ?
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e.getModifierState.bind(e) :
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function() { return false; };
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var target = e.detail ? e.detail.keyboardEvent : e.target;
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return getModifierState('Control') ||
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getModifierState('Alt') ||
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getModifierState('Meta') ||
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getModifierState('Fn') ||
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target.tagName == 'INPUT' ||
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target.tagName == 'TEXTAREA' ||
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target.tagName == 'SELECT' ||
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target.tagName == 'BUTTON' ||
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target.tagName == 'A' ||
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target.tagName == 'GR-BUTTON';
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},
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};
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window.Gerrit = window.Gerrit || {};
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window.Gerrit.KeyboardShortcutBehavior = KeyboardShortcutBehavior;
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})(window);
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</script>
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