diff options
Diffstat (limited to 'catapult/third_party/polymer/components/shadycss/tests/lazy-init.html')
| -rw-r--r-- | catapult/third_party/polymer/components/shadycss/tests/lazy-init.html | 157 |
1 files changed, 157 insertions, 0 deletions
diff --git a/catapult/third_party/polymer/components/shadycss/tests/lazy-init.html b/catapult/third_party/polymer/components/shadycss/tests/lazy-init.html new file mode 100644 index 00000000..42273b32 --- /dev/null +++ b/catapult/third_party/polymer/components/shadycss/tests/lazy-init.html @@ -0,0 +1,157 @@ +<!doctype html> +<!-- +@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 +--> +<script>WCT = { waitFor(cb) { addEventListener('DOMContentLoaded', cb) } };</script> +<script src="test-flags.js"></script> +<script src="../node_modules/wct-browser-legacy/browser.js"></script> +<script src="../node_modules/@webcomponents/webcomponents-platform/webcomponents-platform.js"></script> +<script src="../node_modules/es6-promise/dist/es6-promise.auto.min.js"></script> +<script src="../node_modules/@webcomponents/template/template.js"></script> +<script src="../node_modules/@webcomponents/html-imports/html-imports.min.js"></script> +<script src="../node_modules/@webcomponents/shadydom/shadydom.min.js"></script> +<script src="../node_modules/@webcomponents/custom-elements/custom-elements.min.js"></script> +<script src="../scoping-shim.min.js"></script> +<script src="../apply-shim.min.js"></script> +<script src="../custom-style-interface.min.js"></script> +<template id="eager-host"> + <style> + :host { + display: block; + height: 100px; + background-color: blue; + } + + :host > late-client { + --foo: rgb(255, 0, 0); + } + </style> + <late-client></late-client> +</template> +<template id="late-client"> + <style> + :host { + display: block; + color: var(--foo); + } + + div { + border: 2px solid rgb(0, 255, 0); + border-color: var(--foo); + } + </style> + <div>Hello!</div> +</template> + +<template id="x-parent"> + <style> + :host { + --property: 10px solid black; + } + </style> + <x-child></x-child> +</template> +<template id="x-child"> + <style> + div { + border: var(--property); + } + </style> + <div></div> +</template> + +<script> + class LateClient extends HTMLElement { + constructor() { + super(); + this.initialized = false; + this.attachShadow({mode: 'open'}); + } + init() { + if (this.initialized) { + return; + } + this.initialized = true; + const template = document.querySelector(`template#${this.localName}`); + if (!template.initialized) { + template.initialized = true; + window.ShadyCSS.prepareTemplate(template, this.localName); + } + this.shadowRoot.appendChild(template.content.cloneNode(true)); + window.ShadyCSS.styleElement(this); + } + connectedCallback() { + if (this.initialized) { + window.ShadyCSS.styleElement(this); + } + } + } + + class EagerHost extends HTMLElement { + constructor() { + super(); + this.template = document.querySelector(`template#${this.localName}`); + if (!this.template.initialized) { + this.template.initialized = true; + window.ShadyCSS.prepareTemplate(this.template, this.localName); + } + } + connectedCallback() { + window.ShadyCSS.styleElement(this); + if (this.template && !this.shadowRoot) { + this.attachShadow({mode: 'open'}); + this.shadowRoot.appendChild(this.template.content.cloneNode(true)); + } + } + } + + class StampBeforeStyle extends HTMLElement { + constructor() { + super(); + this.template = document.querySelector(`template#${this.localName}`); + if (!this.template.initialized) { + this.template.initialized = true; + window.ShadyCSS.prepareTemplate(this.template, this.localName); + } + } + connectedCallback() { + if (this.template && !this.shadowRoot) { + this.attachShadow({ mode: 'open' }); + this.shadowRoot.appendChild(this.template.content.cloneNode(true)); + } + window.ShadyCSS.styleElement(this); + } + } + + suite('Lazy Initialization', function() { + test('Late child element is eventually correct', function() { + customElements.define('late-client', class extends LateClient{}); + customElements.define('eager-host', class extends EagerHost{}); + const host = document.createElement('eager-host'); + document.body.appendChild(host); + window.ShadyCSS.styleDocument(); + const inner = host.shadowRoot.querySelector('late-client'); + if (inner.init) { + inner.init(); + } + const div = inner.shadowRoot.querySelector('div'); + assert.equal(getComputedStyle(div).getPropertyValue('border-color').trim(), 'rgb(255, 0, 0)'); + }); + + test('Custom Property Shim can force unprepared parent to evaluate', function() { + customElements.define('x-child', class extends StampBeforeStyle {}); + customElements.define('x-parent', class extends StampBeforeStyle {}); + const host = document.createElement('x-parent'); + document.body.appendChild(host); + const inner = host.shadowRoot.querySelector('x-child'); + const div = inner.shadowRoot.querySelector('div'); + assert.equal(getComputedStyle(div).getPropertyValue('border-top-width').trim(), '10px'); + }); + }); +</script>
\ No newline at end of file |