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implements
disable-upgrade attribute which prevents readying an ele…
…ment until the attribute is removed.
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Steven Orvell
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Mar 9, 2017
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| constructor() { | ||
| super(); | ||
| this.root = this; | ||
| this.created(); | ||
| } | ||
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,98 @@ | ||
| <!-- | ||
| @license | ||
| Copyright (c) 2017 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 | ||
| --> | ||
| <!DOCTYPE html> | ||
| <html> | ||
| <head> | ||
| <script src="../../../webcomponentsjs/webcomponents-lite.js"></script> | ||
| <link rel="import" href="../../polymer.html"> | ||
| </head> | ||
| <body> | ||
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| <dom-module id="x-child"> | ||
| <template> | ||
| <style> | ||
| :host { | ||
| display: block; | ||
| border: 2px solid lightgreen; | ||
| margin: 2px; | ||
| padding: 2px; | ||
| }; | ||
| </style> | ||
| <div>I'm a child, yo!</div> | ||
| </template> | ||
| <script> | ||
| HTMLImports.whenReady(function() { | ||
| class XChild extends Polymer.Element { | ||
| static get is() { return 'x-child'} | ||
| static get properties() { | ||
| return { | ||
| prop: { value: 'hi'} | ||
| } | ||
| } | ||
| } | ||
| customElements.define(XChild.is, XChild); | ||
| }); | ||
| </script> | ||
| </dom-module> | ||
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| <dom-module id="x-test"> | ||
| <template> | ||
| <style> | ||
| :host { | ||
| display: block; | ||
| border: 2px solid orange; | ||
| padding: 2px; | ||
| }; | ||
| </style> | ||
| <div>element says: {{prop}}</div> | ||
| <x-child id="child" disable-upgrade$="[[disabled]]"></x-child> | ||
| </template> | ||
| <script> | ||
| HTMLImports.whenReady(function() { | ||
| class XTest extends Polymer.Element { | ||
| static get is() { return 'x-test'} | ||
| static get properties() { | ||
| return { | ||
| prop: { value: 'hi'}, | ||
| disabled: {value: true} | ||
| } | ||
| } | ||
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| ready() { | ||
| super.ready(); | ||
| setTimeout(() => { | ||
| // this.$.child.removeAttribute('disable-upgrade'); | ||
| this.disabled = false; | ||
| }, 1000) | ||
| } | ||
| } | ||
| customElements.define(XTest.is, XTest); | ||
| }); | ||
| </script> | ||
| </dom-module> | ||
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| <h2>Enabled</h2> | ||
| <x-test></x-test> | ||
| <x-test></x-test> | ||
| <h2>Disabled</h2> | ||
| <script> | ||
| function go() { | ||
| Array.from(document.querySelectorAll('[disable-upgrade]')) | ||
| .forEach((e) => e.removeAttribute('disable-upgrade')); | ||
| } | ||
| </script> | ||
| <button onclick="go()">Go</button> | ||
| <x-test id="one" disable-upgrade></x-test> | ||
| <x-test id="two" disable-upgrade></x-test> | ||
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| </body> | ||
| </html> |
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