| <!DOCTYPE html> |
| <!-- |
| Copyright (c) 2014 The Chromium Authors. All rights reserved. |
| Use of this source code is governed by a BSD-style license that can be |
| found in the LICENSE file. |
| --> |
| |
| <!-- |
| @fileoverview A basic container that shows and hides itself based on an |
| event fired by a specified target. |
| --> |
| |
| <polymer-element name="tracing-analysis-toggle-container" |
| constructor="TracingAnalysisToggleContainer"> |
| <template> |
| <style> |
| :host(:[visible]) { |
| display: flex; |
| } |
| |
| :host(:not([visible])) { |
| display: none; |
| } |
| |
| ::content > * { |
| flex: 0 1 auto; |
| } |
| |
| </style> |
| <content></content> |
| </template> |
| <script> |
| 'use strict'; |
| Polymer({ |
| /** |
| * The visible property governs wether the component displays |
| * it's contents or not. |
| */ |
| publish: { |
| visible: { |
| value: false, |
| reflect: true |
| } |
| }, |
| |
| created: function() { |
| this.toggleListeners_ = []; |
| }, |
| |
| toggleVisible: function() { |
| this.visible = !this.visible; |
| }, |
| |
| setToggleListener: function(target, eventType) { |
| var listenerFunction = this.toggleVisible.bind(this); |
| target.addEventListener(eventType, listenerFunction, false); |
| this.toggleListeners_.push({ |
| target: target, |
| eventType: eventType, |
| listenerFunction: listenerFunction |
| }); |
| }, |
| |
| clearToggleListener: function(target, eventType) { |
| for (var i = 0; i < this.toggleListeners_.length; i++) { |
| var listener = this.toggleListeners_[i]; |
| if (listener.target === target && listener.eventType === eventType) { |
| target.removeEventListener(listener.eventType, |
| listener.listenerFunction, false); |
| this.toggleListeners_.splice(i, 1); |
| return; |
| } |
| } |
| } |
| }); |
| </script> |
| </polymer-element> |
