<!DOCTYPE html> <html> <head> <title>Shadow DOM: ShadowRoot interface</title> <meta name="author" title="Ryosuke Niwa" href="mailto:rniwa@webkit.org"> <meta name="assert" content="ShadowRoot interface and its attributes must be defined"> <link rel="help" href="https://w3c.github.io/webcomponents/spec/shadow/#the-shadowroot-interface"> <script src="/resources/testharness.js"></script> <script src="/resources/testharnessreport.js"></script> </head> <body> <div id="log"></div> <script> test(function () { assert_true('ShadowRoot' in window, '"ShadowRoot" exists on window'); }, 'Check the existence of ShadowRoot interface'); test(function () { assert_equals(ShadowRoot.prototype.__proto__, DocumentFragment.prototype, 'ShadowRoot must inherit from DocumentFragment'); }, 'ShadowRoot must inherit from DocumentFragment'); test(function () { assert_throws({'name': 'TypeError'}, function () { new ShadowRoot(); }, 'new ShadowRoot() must throw a TypeError'); }, 'ShadowRoot must not be a constructor'); function testActiveElement(mode) { test(function () { var host = document.createElement('div'); document.body.appendChild(host); var shadowRoot = host.attachShadow({'mode': mode}); shadowRoot.appendChild(document.createElement('input')); assert_equals(shadowRoot.activeElement, null, 'ShadowRoot.host must return null if an ' + mode + ' shadow tree does not have a focused element'); shadowRoot.firstChild.focus(); assert_equals(shadowRoot.activeElement, shadowRoot.firstChild, 'ShadowRoot.host must return the focused element of an ' + mode + ' shadow tree'); host.remove(); assert_equals(shadowRoot.activeElement, null, 'ShadowRoot.host must return null if an ' + mode + ' shadow tree lost focus'); }, 'ShadowRoot.activeElement must return the focused element of the context object when shadow root is ' + mode + '.'); } testActiveElement('open'); testActiveElement('closed'); test(function () { var host1 = document.createElement('div'); assert_equals(host1.attachShadow({'mode': 'open'}).host, host1, 'ShadowRoot.host must return the shadow host of an open shadow tree') var host2 = document.createElement('div'); assert_equals(host2.attachShadow({'mode': 'closed'}).host, host2, 'ShadowRoot.host must return the shadow host of a closed shadow tree'); }, 'ShadowRoot.host must return the shadow host of the context object.'); function testInnerHTML(mode) { test(function () { var host = document.createElement('div'); var shadowRoot = host.attachShadow({'mode': mode}); assert_equals(shadowRoot.innerHTML, '', 'ShadowRoot.innerHTML must be an empty string when the shadow root does not have any children'); shadowRoot.appendChild(document.createTextNode('hello')); assert_equals(shadowRoot.innerHTML, 'hello', 'ShadowRoot.innerHTML must serialize a text node child'); shadowRoot.appendChild(document.createElement('span')); assert_equals(shadowRoot.innerHTML, 'hello<span></span>', 'ShadowRoot.innerHTML must serialize a HTML element child'); }, 'ShadowRoot.innerHTML must return the result of the HTML fragment serialization algorithm when shadow root is ' + mode + '.'); } testInnerHTML('open'); testInnerHTML('closed'); function testSetInnerHTML(mode) { test(function () { var host = document.createElement('div'); var shadowRoot = host.attachShadow({'mode': mode}); shadowRoot.innerHTML = 'hello'; assert_equals(shadowRoot.childNodes.length, 1, 'ShadowRoot.innerHTML = "hello" must insert a single child (text node)'); assert_true(shadowRoot.firstChild instanceof Text, 'The first child of the shadow root after ShadowRoot.innerHTML = "hello" must be a Text node'); assert_equals(shadowRoot.firstChild.data, 'hello', 'The first Text node should contain the string "hello" after ShadowRoot.innerHTML = "hello"'); shadowRoot.innerHTML = '<b>hello</b>'; assert_equals(shadowRoot.childNodes.length, 1, 'ShadowRoot.innerHTML = "<b>hello</b>" must insert a single child (b)'); assert_true(shadowRoot.firstChild instanceof HTMLElement, 'The first child of the shadow root after ShadowRoot.innerHTML = "<b>hello</b>" must be a HTML element'); assert_equals(shadowRoot.firstChild.localName, 'b', 'The local name of the shadow root\'s first child after ShadowRoot.innerHTML = "<b>hello</b>" must be "b"'); assert_equals(shadowRoot.innerHTML, '<b>hello</b>', 'ShadowRoot.innerHTML must be "<b>hello</b>" after ShadowRoot.innerHTML = "<b>hello</b>"'); shadowRoot.innerHTML = ''; assert_equals(shadowRoot.childNodes.length, 0, 'ShadowRoot.innerHTML = "" must remove all its children'); }, 'ShadowRoot.innerHTML must replace all with the result of invoking the fragment parsing algorithm when shadow root is ' + mode + '.'); } testSetInnerHTML('open'); testSetInnerHTML('closed'); function testStyleSheets(mode) { test(function () { var host = document.createElement('div'); var shadowRoot = host.attachShadow({'mode': mode}); assert_equals(shadowRoot.styleSheets.length, 0, 'shadowRoot.styleSheets must be empty when the shadow root does not contain any stylesheets'); shadowRoot.innerHTML = '<span></span><style> a.rule {} </style><style> b.rule {} </style>'; assert_equals(shadowRoot.styleSheets.length, 2, 'shadowRoot.styleSheets must contain two items when the shadow root has two style elements'); var styles = shadowRoot.querySelectorAll('style'); assert_equals(shadowRoot.styleSheets[0], styles[0].sheet, 'shadowRoot.styleSheets[0] must be the first style element in the shadow root'); assert_equals(shadowRoot.styleSheets[1], styles[1].sheet, 'shadowRoot.styleSheets[1] must be the second style element in the shadow root'); }, 'ShadowRoot.styleSheets must return a StyleSheetList sequence containing the shadow root style sheets when shadow root is ' + mode + '.'); } testStyleSheets('open'); testStyleSheets('closed'); </script> </body> </html>