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Issue 1530643003: Support slot element's fallback content feature (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: addressed Created 4 years, 11 months ago
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1 <!DOCTYPE html>
2 <script src='../../../resources/testharness.js'></script>
3 <script src='../../../resources/testharnessreport.js'></script>
4 <script src='resources/shadow-dom.js'></script>
5 <div id='host'>
6 <template data-mode='open'>
7 <slot name='slot1'>
8 <div id='fallback1'></div>
9 <slot name='slot2'>
10 <div id='fallback2'></div>
11 </slot>
12 </slot>
13 <slot name='slot3'>
14 <slot name='slot4'>
15 <div id='fallback3'></div>
16 </slot>
17 </slot>
18 </template>
19 <div id='child1' slot='slot2'></div>
20 </div>
21 <script>
22 'use strict';
23 convertTemplatesToShadowRootsWithin(host);
24 removeWhiteSpaceOnlyTextNodes(host);
25 document.body.offsetLeft;
26
27 const slot1 = host.shadowRoot.querySelector('[name=slot1]');
28 const slot2 = host.shadowRoot.querySelector('[name=slot2]');
29 const slot3 = host.shadowRoot.querySelector('[name=slot3]');
30 const slot4 = host.shadowRoot.querySelector('[name=slot4]');
31 const fallback1 = host.shadowRoot.querySelector('#fallback1');
32 const fallback2 = host.shadowRoot.querySelector('#fallback2');
33 const fallback3 = host.shadowRoot.querySelector('#fallback3');
34
35 test(() => {
36 assert_equals(child1.assignedSlot, slot2);
37 assert_equals(fallback1.assignedSlot, null);
38 assert_equals(fallback2.assignedSlot, null);
39 assert_equals(fallback3.assignedSlot, null);
40 }, "assignedSlot");
41
42 test(() => {
43 assert_array_equals(slot1.getAssignedNodes(), []);
44 assert_array_equals(slot2.getAssignedNodes(), [child1]);
45 assert_array_equals(slot3.getAssignedNodes(), []);
46 assert_array_equals(slot4.getAssignedNodes(), []);
47 }, "getAssignedNodes");
48
49 test(() => {
50 assert_array_equals(slot1.getDistributedNodes(), [fallback1, child1]);
51 assert_array_equals(slot2.getDistributedNodes(), [child1]);
52 assert_array_equals(slot3.getDistributedNodes(), [fallback3]);
53 assert_array_equals(slot4.getDistributedNodes(), [fallback3]);
54 }, "getDistributedNodes");
55 </script>
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