129 lines
5.4 KiB
HTML
129 lines
5.4 KiB
HTML
<!DOCTYPE html>
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<title>DOM Parts: Basic object structure, <?child-node-part?> declarative API</title>
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<meta name="author" href="mailto:masonf@chromium.org">
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script src="./resources/domparts-utils.js"></script>
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<div>
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<!-- Note - the test will remove this chunk of DOM once the test completes -->
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<div id=target2>
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Declarative syntax - The *two* templates below should have IDENTICAL STRUCTURE
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to this one. There are four cases to test:
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1. Main document parsing (this chunk)
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2. Template parsing (the template below with id=declarative)
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3. Template/fragment cloning (a clone of the template with id=declarative)
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4. Declarative Shadow DOM parsing (template with id=declarative_shadow_dom and shadowrootmode attribute)
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<h1 id="name">
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<?child-node-part fullname?>
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First
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<!--?child-node-part middle?--> <?node-part middle-node?>Middle <?/child-node-part middle?>
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Last
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<!-- ?/child-node-part foobar? -->
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</h1>
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Email: <?node-part email-link?><a id="link"></a>
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Here are some invalid parts that should not get parsed:
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<!--child-node-part test comment without leading ?-->
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<child-node-part test PI without leading ?>
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<!--?child-node-partfoobar?-->
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<?child-node-partfoobar?>
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</div>
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</div>
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<template id=declarative>
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<div>
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<div id=target3>Declarative syntax
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<h1 id="name">
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<?child-node-part fullname?>
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First
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<!--?child-node-part middle?--> <?node-part middle-node?>Middle <?/child-node-part middle?>
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Last
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<!-- ?/child-node-part foobar? -->
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</h1>
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Email: <?node-part email-link?><a id="link"></a>
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Here are some invalid parts that should not get parsed:
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<!--child-node-part test comment without leading ?-->
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<child-node-part test PI without leading ?>
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<!--?child-node-partfoobar?-->
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<?child-node-partfoobar?>
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</div>
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</div>
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</template>
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<!-- TODO: This test should look at declarative shadow DOM behavior. -->
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<script> {
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const template = document.getElementById('declarative');
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['Main Document','Template','Clone','PartClone'].forEach(testCase => {
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function assertIsComment(node,commentText) {
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assert_true(node instanceof Comment);
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assert_equals(node.textContent,commentText);
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}
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test((t) => {
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let doc,target,wrapper,cleanup;
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let expectDOMParts = true;
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switch (testCase) {
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case 'Main Document':
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doc = document;
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target = doc.querySelector('#target2');
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cleanup = [target.parentElement];
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break;
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case 'Template':
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doc = template.content;
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target = doc.querySelector('#target3');
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cleanup = [];
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break;
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case 'Clone':
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doc = document;
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wrapper = document.body.appendChild(document.createElement('div'));
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wrapper.appendChild(template.content.cloneNode(true));
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target = wrapper.querySelector('#target3');
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// A "normal" tree clone should not keep DOM Parts:
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expectDOMParts = false;
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cleanup = [wrapper];
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break;
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case 'PartClone':
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doc = document;
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wrapper = document.body.appendChild(document.createElement('div'));
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assert_true(template.content.getPartRoot().getParts().length != 0);
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wrapper.appendChild(template.content.getPartRoot().clone().rootContainer);
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target = wrapper.querySelector('#target3');
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// Even a PartRoot clone should not add parts to the document, when that
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// clone is appendChilded to the document.
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expectDOMParts = false;
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cleanup = [wrapper];
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break;
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default:
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assert_unreached('Invalid test case');
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}
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assert_true(!!(doc && target && target.parentElement));
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const root = doc.getPartRoot();
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t.add_cleanup(() => cleanup.forEach(el => el.remove())); // Cleanup
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t.add_cleanup(() => root.getParts().forEach(part => part.disconnect()));
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assert_true(root instanceof DocumentPartRoot);
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if (expectDOMParts) {
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const expectedRootParts = [{type:'ChildNodePart',metadata:['fullname']},{type:'NodePart',metadata:['email-link']}];
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assertEqualParts(root.getParts(),expectedRootParts,0,'declarative root should have two parts');
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assert_equals(root.getParts()[1].node,target.querySelector('#link'));
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const childPart1 = root.getParts()[0];
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assertIsComment(childPart1.previousSibling,'?child-node-part fullname?');
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assertIsComment(childPart1.nextSibling,' ?/child-node-part foobar? ');
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const expectedChild1Parts = [{type:'ChildNodePart',metadata:['middle']}];
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assertEqualParts(childPart1.getParts(),expectedChild1Parts,0,'First level childpart should just have one child part');
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const childPart2 = childPart1.getParts()[0];
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assertIsComment(childPart2.previousSibling,'?child-node-part middle?');
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assertIsComment(childPart2.nextSibling,'?/child-node-part middle?');
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const expectedChild2Parts = [{type:'NodePart',metadata:['middle-node']}];
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assertEqualParts(childPart2.getParts(),expectedChild2Parts,0,'Second level childpart should have just the node part');
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assert_true(childPart2.getParts()[0].node instanceof Text);
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assert_equals(childPart2.getParts()[0].node.textContent,'Middle ');
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} else {
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assertEqualParts(root.getParts(),[],[]);
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}
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}, `Basic declarative DOM Parts (${testCase})`);
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});
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}</script>
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