| Index: third_party/WebKit/LayoutTests/imported/web-platform-tests/shadow-dom/styles/shadow-cascade-order.html
|
| diff --git a/third_party/WebKit/LayoutTests/imported/web-platform-tests/shadow-dom/styles/shadow-cascade-order.html b/third_party/WebKit/LayoutTests/imported/web-platform-tests/shadow-dom/styles/shadow-cascade-order.html
|
| new file mode 100644
|
| index 0000000000000000000000000000000000000000..851509745cb1e12e291fcc1be57e8ccb34b572f5
|
| --- /dev/null
|
| +++ b/third_party/WebKit/LayoutTests/imported/web-platform-tests/shadow-dom/styles/shadow-cascade-order.html
|
| @@ -0,0 +1,404 @@
|
| +<!DOCTYPE html>
|
| +<html>
|
| +<head>
|
| +<title>Shadow DOM: CSS Style Rule cascading</title>
|
| +<meta name="author" title="Takayoshi Kochi" href="mailto:kochi@google.com">
|
| +<meta name="assert" content="Cascading order test for style rules from various shadow trees.">
|
| +<link rel="help" href="https://github.com/w3c/webcomponents/blob/gh-pages/proposals/Shadow-DOM-Cascade-Order.md">
|
| +<script src="../../../../resources/testharness.js"></script>
|
| +<script src="../../../../resources/testharnessreport.js"></script>
|
| +<link rel='stylesheet' href='../../../../resources/testharness.css'>
|
| +</head>
|
| +<body>
|
| +<div id="log"></div>
|
| +<script>
|
| +
|
| +// Taken from the example in
|
| +// https://github.com/w3c/webcomponents/blob/gh-pages/proposals/Shadow-DOM-Cascade-Order.md
|
| +// https://github.com/w3c/webcomponents/issues/316
|
| +// https://github.com/w3c/webcomponents/blob/gh-pages/proposals/Shadow-DOM-Cascade-Order-in-v1.md
|
| +// with element renamed and style rule location changed.
|
| +//
|
| +// <style>my-item { color: red; }</style>
|
| +// <my-list>
|
| +// <:shadow>
|
| +// <style>::slotted(my-item) { color: blue; }</style>
|
| +// <slot/>
|
| +// </:shadow>
|
| +// <my-item style="color: green;">
|
| +// <:shadow>
|
| +// <style>:host { color: yellow; }</style>
|
| +// <slot/>
|
| +// </:shadow>
|
| +// ITEM
|
| +// </my-item>
|
| +// </my-list>
|
| +//
|
| +// There are 4 possible style rules that applies to <my-item> above:
|
| +// 1. document-wide style
|
| +// 2. ::slotted style in the shadow in <my-list>
|
| +// 3. :host style in the shadow in <my-item>
|
| +// 4. inline style within <my-item> itself.
|
| +//
|
| +// It could be possible to nest many more shadow trees in <my-list>,
|
| +// but to prevent the number of combination explosion, such case is covered
|
| +// in another test file.
|
| +//
|
| +// So testing cases where 2 style rules are competing,
|
| +// 4C2 = 6 combinations exist, multiplied by 4, which is the possible
|
| +// combination of applying "!important" for the 2 style rules.
|
| +
|
| +function createMyList(mode, slottedStyle, hostStyle, inlineStyle) {
|
| + var myList = document.createElement('my-list');
|
| + var root = myList.attachShadow({'mode': mode});
|
| + root.innerHTML = '<style>' + slottedStyle + '</style><slot></slot>';
|
| + var myItem = document.createElement('my-item');
|
| + if (inlineStyle !== '')
|
| + myItem.setAttribute('style', inlineStyle);
|
| + myList.appendChild(myItem);
|
| + var root2 = myItem.attachShadow({'mode': mode});
|
| + root2.innerHTML = '<style>' + hostStyle + '</style><slot></slot>';
|
| + myItem.appendChild(document.createTextNode('ITEM'));
|
| + return myList;
|
| +}
|
| +
|
| +function testCascadingOrder(mode) {
|
| + // In all test cases, the rule specified as "color: green" should win.
|
| + var testCases = [
|
| + // [A] Cases between document, ::slotteed, :host, and inline
|
| + {
|
| + title: 'A1. document vs ::slotted, document rule should win',
|
| + documentStyle: 'my-item { color: green; }',
|
| + slottedStyle: '::slotted(my-item) { color: red; }',
|
| + hostStyle: '',
|
| + inlineStyle: ''
|
| + },
|
| + {
|
| + title: 'A2. document vs :host, document rule should win',
|
| + documentStyle: 'my-item { color: green; }',
|
| + slottedStyle: '',
|
| + hostStyle: ':host { color: red; }',
|
| + inlineStyle: ''
|
| + },
|
| + {
|
| + title: 'A3. document vs inline, inline rule should win',
|
| + documentStyle: 'my-item { color: red; }',
|
| + slottedStyle: '',
|
| + hostStyle: '',
|
| + inlineStyle: 'color: green;'
|
| + },
|
| + {
|
| + title: 'A4. ::slotted vs :host, earlier in tree-of-trees rule should win',
|
| + documentStyle: '',
|
| + slottedStyle: '::slotted(my-item) { color: green; }',
|
| + hostStyle: ':host { color: red; }',
|
| + inlineStyle: ''
|
| + },
|
| + {
|
| + title: 'A5. ::slotted vs inline, inline rule should win',
|
| + documentStyle: '',
|
| + slottedStyle: '::slotted(my-item) { color: red; }',
|
| + hostStyle: '',
|
| + inlineStyle: 'color: green;'
|
| + },
|
| + {
|
| + title: 'A6. :host vs inline, inline rule should win',
|
| + documentStyle: '',
|
| + slottedStyle: '',
|
| + hostStyle: ':host { color: red; }',
|
| + inlineStyle: 'color: green;'
|
| + },
|
| +
|
| + // [B] Stronger rule is still stronger with !important
|
| + {
|
| + title: 'B1. document with !important vs ::slotted, document rule should win',
|
| + documentStyle: 'my-item { color: green !important; }',
|
| + slottedStyle: '::slotted(my-item) { color: red; }',
|
| + hostStyle: '',
|
| + inlineStyle: ''
|
| + },
|
| + {
|
| + title: 'B2. document with !important vs :host, document rule should win',
|
| + documentStyle: 'my-item { color: green !important; }',
|
| + slottedStyle: '',
|
| + hostStyle: ':host { color: red; }',
|
| + inlineStyle: ''
|
| + },
|
| + {
|
| + title: 'B3. document vs inline with !important, inline rule should win',
|
| + documentStyle: 'my-item { color: red; }',
|
| + slottedStyle: '',
|
| + hostStyle: '',
|
| + inlineStyle: 'color: green !important;'
|
| + },
|
| + {
|
| + title: 'B4. ::slotted with !important vs :host, earlier in tree-of-trees rule should win',
|
| + documentStyle: '',
|
| + slottedStyle: '::slotted(my-item) { color: green !important; }',
|
| + hostStyle: ':host { color: red; }',
|
| + inlineStyle: ''
|
| + },
|
| + {
|
| + title: 'B5. ::slotted vs inline with !important, inline rule should win',
|
| + documentStyle: '',
|
| + slottedStyle: '::slotted(my-item) { color: green !important; }',
|
| + hostStyle: '',
|
| + inlineStyle: 'color: red;'
|
| + },
|
| + {
|
| + title: 'B6. :host vs inline with !important, inline rule should win',
|
| + documentStyle: '',
|
| + slottedStyle: '',
|
| + hostStyle: ':host { color: red; }',
|
| + inlineStyle: 'color: green !important;'
|
| + },
|
| +
|
| + // [C] Weaker rule gets stronger with !important
|
| + {
|
| + title: 'C1. document vs ::slotted with !important, ::slotted rule should win',
|
| + documentStyle: 'my-item { color: red; }',
|
| + slottedStyle: '::slotted(my-item) { color: green !important; }',
|
| + hostStyle: '',
|
| + inlineStyle: ''
|
| + },
|
| + {
|
| + title: 'C2. document vs :host with !important, :host rule should win',
|
| + documentStyle: 'my-item { color: red; }',
|
| + slottedStyle: '',
|
| + hostStyle: ':host { color: green !important; }',
|
| + inlineStyle: ''
|
| + },
|
| + {
|
| + title: 'C3. document with !important vs inline, document rule should win',
|
| + documentStyle: 'my-item { color: green !important; }',
|
| + slottedStyle: '',
|
| + hostStyle: '',
|
| + inlineStyle: 'color: red;'
|
| + },
|
| + {
|
| + title: 'C4. ::slotted vs :host with !important, later in tree-of-trees rule should win',
|
| + documentStyle: '',
|
| + slottedStyle: '::slotted(my-item) { color: green !important; }',
|
| + hostStyle: ':host { color: red; }',
|
| + inlineStyle: ''
|
| + },
|
| + {
|
| + title: 'C5. ::slotted with !important vs inline, ::slotted rule should win',
|
| + documentStyle: '',
|
| + slottedStyle: '::slotted(my-item) { color: green !important; }',
|
| + hostStyle: '',
|
| + inlineStyle: 'color: red;'
|
| + },
|
| + {
|
| + title: 'C6. :host with !important vs inline, :host rule should win',
|
| + documentStyle: '',
|
| + slottedStyle: '',
|
| + hostStyle: ':host { color: green !important; }',
|
| + inlineStyle: 'color: red;'
|
| + },
|
| +
|
| + // [D] Cases between document, ::slotteed, :host, and inline, both with !important
|
| + {
|
| + title: 'D1. document vs ::slotted both with !important, ::slotted rule should win',
|
| + documentStyle: 'my-item { color: red !important; }',
|
| + slottedStyle: '::slotted(my-item) { color: green !important; }',
|
| + hostStyle: '',
|
| + inlineStyle: ''
|
| + },
|
| + {
|
| + title: 'D2. document vs :host both with !important, :host rule should win',
|
| + documentStyle: 'my-item { color: red !important; }',
|
| + slottedStyle: '',
|
| + hostStyle: ':host { color: green !important; }',
|
| + inlineStyle: ''
|
| + },
|
| + {
|
| + title: 'D3. document vs inline both with !important, inline rule should win',
|
| + documentStyle: 'my-item { color: red !important; }',
|
| + slottedStyle: '',
|
| + hostStyle: '',
|
| + inlineStyle: 'color: green !important;'
|
| + },
|
| + {
|
| + title: 'D4. ::slotted vs :host both with !important, later in tree-of-trees rule should win',
|
| + documentStyle: '',
|
| + slottedStyle: '::slotted(my-item) { color: red !important; }',
|
| + hostStyle: ':host { color: green !important; }',
|
| + inlineStyle: ''
|
| + },
|
| + {
|
| + title: 'D5. ::slotted vs inline both with !important, ::slotted rule should win',
|
| + documentStyle: '',
|
| + slottedStyle: '::slotted(my-item) { color: green !important; }',
|
| + hostStyle: '',
|
| + inlineStyle: 'color: red !important;'
|
| + },
|
| + {
|
| + title: 'D6. :host vs inline both with !important, :host rule should win',
|
| + documentStyle: '',
|
| + slottedStyle: '',
|
| + hostStyle: ':host { color: green !important; }',
|
| + inlineStyle: 'color: red !important;'
|
| + },
|
| + // [E] Putting all together
|
| + {
|
| + title: 'E1. all style applied, inline rule should win',
|
| + documentStyle: 'my-item { color: red; }',
|
| + slottedStyle: '::slotted(my-item) { color: blue; }',
|
| + hostStyle: ':host { color: yellow; }',
|
| + inlineStyle: 'color: green;'
|
| + },
|
| + {
|
| + title: 'E2. all styles with !important applied, rule in the last tree-of-trees should win',
|
| + documentStyle: 'my-item { color: red !important; }',
|
| + slottedStyle: '::slotted(my-item) { color: blue !important; }',
|
| + hostStyle: ':host { color: green !important; }',
|
| + inlineStyle: 'color: yellow !important;'
|
| + },
|
| + ];
|
| +
|
| + for (var i = 0; i < testCases.length; ++i) {
|
| + var testCase = testCases[i];
|
| + var documentStyle = document.createElement('style');
|
| + documentStyle.appendChild(document.createTextNode(testCase['documentStyle']));
|
| + document.head.appendChild(documentStyle);
|
| +
|
| + var myList = createMyList(mode,
|
| + testCase['slottedStyle'], testCase['hostStyle'], testCase['inlineStyle']);
|
| + document.body.appendChild(myList);
|
| +
|
| + test(function () {
|
| + var myItem = myList.querySelector('my-item');
|
| + assert_equals(window.getComputedStyle(myItem).color, 'rgb(0, 128, 0)',
|
| + testCase['title']);
|
| + }, testCase['title'] + ' for ' + mode + ' mode.');
|
| +
|
| + myList.parentNode.removeChild(myList);
|
| + document.head.removeChild(documentStyle)
|
| + }
|
| +}
|
| +
|
| +// Open or Closed should not make any difference in style application.
|
| +testCascadingOrder('open');
|
| +testCascadingOrder('closed');
|
| +
|
| +
|
| +// Taken from the example in
|
| +// https://github.com/w3c/webcomponents/blob/gh-pages/proposals/Shadow-DOM-Cascade-Order.md
|
| +// https://github.com/w3c/webcomponents/issues/316
|
| +// https://github.com/w3c/webcomponents/blob/gh-pages/proposals/Shadow-DOM-Cascade-Order-in-v1.md
|
| +// with element renamed and style rule location changed.
|
| +//
|
| +// <style>my-item { color: red; }</style>
|
| +// <my-list>
|
| +// <:shadow>
|
| +// <style>::slotted(my-item) { color: blue; }</style>
|
| +// <div>
|
| +// <:shadow>
|
| +// <slot/>
|
| +// </:shadow>
|
| +// <slot/>
|
| +// </div>
|
| +// </:shadow>
|
| +// <my-item style="color: green;">
|
| +// <:shadow>
|
| +// <style>:host { color: yellow; }</style>
|
| +// <slot/>
|
| +// </:shadow>
|
| +// ITEM
|
| +// </my-item>
|
| +// </my-list>
|
| +//
|
| +// The difference from the example tree above is that <my-list> has 2 levels of
|
| +// shadow trees, each with ::slotted(my-list) style rules.
|
| +
|
| +function createMyListWith2LevelShadow(mode, slottedStyle1, slottedStyle2, hostStyle) {
|
| + var myList = document.createElement('my-list');
|
| + var root = myList.attachShadow({'mode': mode});
|
| + root.innerHTML = '<style>' + slottedStyle1 + '</style><div><slot></slot></div>';
|
| + var div = root.querySelector('div');
|
| + var root2 = div.attachShadow({'mode': mode});
|
| + root2.innerHTML = '<style>' + slottedStyle2 + '</style><slot></slot>';
|
| + var myItem = document.createElement('my-item');
|
| + myList.appendChild(myItem);
|
| + var root3 = myItem.attachShadow({'mode': mode});
|
| + root3.innerHTML = '<style>' + hostStyle + '</style><slot></slot>';
|
| + myItem.appendChild(document.createTextNode('ITEM'));
|
| + return myList;
|
| +}
|
| +
|
| +function testCascadingOrderWith2LevelShadow(mode) {
|
| + // In all test cases, the rule specified as "color: green" should win.
|
| + var testCases = [
|
| + {
|
| + title: 'F1. document vs others, document (the first rule in tree-of-trees order) rule should win',
|
| + documentStyle: 'my-item { color: green; }',
|
| + slottedStyle1: '::slotted(my-item) { color: red; }',
|
| + slottedStyle2: '::slotted(my-item) { color: red; }',
|
| + hostStyle: ':host { color: red; }',
|
| + },
|
| + {
|
| + title: 'F2. document with !important vs others, document rule should win',
|
| + documentStyle: 'my-item { color: green !important; }',
|
| + slottedStyle1: '::slotted(my-item) { color: red; }',
|
| + slottedStyle2: '::slotted(my-item) { color: red; }',
|
| + hostStyle: ':host { color: red; }',
|
| + },
|
| + {
|
| + title: 'F3. document vs ::slotted with !important, important rule should win',
|
| + documentStyle: 'my-item { color: red; }',
|
| + slottedStyle1: '::slotted(my-item) { color: green !important; }',
|
| + slottedStyle2: '::slotted(my-item) { color: red; }',
|
| + hostStyle: ':host { color: red; }',
|
| + },
|
| + {
|
| + title: 'F4. document vs ::slotted with !important, important rule should win',
|
| + documentStyle: 'my-item { color: red; }',
|
| + slottedStyle1: '::slotted(my-item) { color: red; }',
|
| + slottedStyle2: '::slotted(my-item) { color: green !important; }',
|
| + hostStyle: ':host { color: red; }',
|
| + },
|
| + {
|
| + title: 'F5. document vs :host with !important, important rule should win',
|
| + documentStyle: 'my-item { color: red; }',
|
| + slottedStyle1: '::slotted(my-item) { color: red; }',
|
| + slottedStyle2: '::slotted(my-item) { color: red; }',
|
| + hostStyle: ':host { color: green !important; }',
|
| + },
|
| + {
|
| + title: 'F6. all rules with !important, the last rule in tree-of-trees should win',
|
| + documentStyle: 'my-item { color: red !important; }',
|
| + slottedStyle1: '::slotted(my-item) { color: red !important; }',
|
| + slottedStyle2: '::slotted(my-item) { color: red !important; }',
|
| + hostStyle: ':host { color: green !important ; }',
|
| + }
|
| + ];
|
| +
|
| + for (var i = 0; i < testCases.length; ++i) {
|
| + var testCase = testCases[i];
|
| + var documentStyle = document.createElement('style');
|
| + documentStyle.appendChild(document.createTextNode(testCase['documentStyle']));
|
| + document.head.appendChild(documentStyle);
|
| +
|
| + var myList = createMyListWith2LevelShadow(mode,
|
| + testCase['slottedStyle1'], testCase['slottedStyle2'], testCase['hostStyle']);
|
| + document.body.appendChild(myList);
|
| +
|
| + test(function () {
|
| + var myItem = myList.querySelector('my-item');
|
| + assert_equals(window.getComputedStyle(myItem).color, 'rgb(0, 128, 0)',
|
| + testCase['title']);
|
| + }, testCase['title'] + ' for ' + mode + ' mode.');
|
| +
|
| + myList.parentNode.removeChild(myList);
|
| + document.head.removeChild(documentStyle)
|
| + }
|
| +}
|
| +
|
| +// Open or Closed should not make any difference in style application.
|
| +testCascadingOrderWith2LevelShadow('open');
|
| +testCascadingOrderWith2LevelShadow('closed');
|
| +
|
| +</script>
|
| +</body>
|
| +</html>
|
|
|
Chromium Code Reviews