65 lines
1.7 KiB
JavaScript
65 lines
1.7 KiB
JavaScript
// Copyright (C) 2016 The Android Open Source Project
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//
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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(function() {
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'use strict';
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const AWAIT_MAX_ITERS = 10;
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const AWAIT_STEP = 5;
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Polymer({
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is: 'gr-overlay',
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behaviors: [
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Polymer.IronOverlayBehavior,
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],
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open(...args) {
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return new Promise(resolve => {
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Polymer.IronOverlayBehaviorImpl.open.apply(this, args);
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this._awaitOpen(resolve);
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});
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},
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/**
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* Override the focus stops that iron-overlay-behavior tries to find.
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*/
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setFocusStops(stops) {
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this.__firstFocusableNode = stops.start;
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this.__lastFocusableNode = stops.end;
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},
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/**
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* NOTE: (wyatta) Slightly hacky way to listen to the overlay actually
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* opening. Eventually replace with a direct way to listen to the overlay.
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*/
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_awaitOpen(fn) {
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let iters = 0;
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const step = () => {
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this.async(() => {
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if (this.style.display !== 'none') {
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fn.call(this);
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} else if (iters++ < AWAIT_MAX_ITERS) {
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step.call(this);
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}
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}, AWAIT_STEP);
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};
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step.call(this);
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},
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_id() {
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return this.getAttribute('id') || 'global';
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},
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});
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})();
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