| <!DOCTYPE html> |
| <title>Shadow DOM: slotchange Events</title> |
| <meta name="author" title="Hayato Ito" href="mailto:hayato@google.com"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="resources/shadow-dom.js"></script> |
| |
| <div id="test1"> |
| <div id="host1"> |
| <template data-mode="open"> |
| <slot id="s1" name="slot1"></slot> |
| </template> |
| <div id="c1" slot="slot1"></div> |
| </div> |
| </div> |
| |
| <script> |
| function doneIfSlotChange(slots, test) { |
| let fired = new Set(); |
| for (let slot of slots) { |
| slot.addEventListener('slotchange', test.step_func((e) => { |
| assert_false(fired.has(slot.id)); |
| fired.add(slot.id); |
| if (fired.size == slots.length) { |
| test.done(); |
| } |
| })) |
| } |
| } |
| |
| async_test((test) => { |
| let n = createTestTree(test1); |
| removeWhiteSpaceOnlyTextNodes(n.test1); |
| |
| doneIfSlotChange([n.s1], test); |
| |
| let d1 = document.createElement('div'); |
| d1.setAttribute('slot', 'slot1'); |
| n.host1.appendChild(d1); |
| }, 'slotchange event: Append a child to a host.'); |
| |
| async_test((test) => { |
| let n = createTestTree(test1); |
| removeWhiteSpaceOnlyTextNodes(n.test1); |
| |
| doneIfSlotChange([n.s1], test); |
| |
| n.c1.remove(); |
| }, 'slotchange event: Remove a child from a host.'); |
| |
| async_test((test) => { |
| let n = createTestTree(test1); |
| removeWhiteSpaceOnlyTextNodes(n.test1); |
| |
| n.c1.remove(); |
| |
| doneIfSlotChange([n.s1], test); |
| }, 'slotchange event: Remove a child before adding an event listener.'); |
| |
| async_test((test) => { |
| let n = createTestTree(test1); |
| removeWhiteSpaceOnlyTextNodes(n.test1); |
| |
| doneIfSlotChange([n.s1], test); |
| |
| n.c1.setAttribute('slot', 'slot-none'); |
| }, 'slotchange event: Change slot= attribute to make it un-assigned.'); |
| |
| async_test((test) => { |
| let n = createTestTree(test1); |
| removeWhiteSpaceOnlyTextNodes(n.test1); |
| |
| doneIfSlotChange([n.s1], test); |
| |
| n.s1.setAttribute('name', 'slot-none'); |
| }, 'slotchange event: Change slot\'s name= attribute so that none is assigned.'); |
| </script> |
| |
| <div id="test2"> |
| <div id="host1"> |
| <template data-mode="open"> |
| <slot id="s1" name="slot1"></slot> |
| </template> |
| <div id="c2" slot="slot2"></div> |
| </div> |
| </div> |
| |
| <script> |
| async_test((test) => { |
| let n = createTestTree(test2); |
| removeWhiteSpaceOnlyTextNodes(n.test2); |
| |
| doneIfSlotChange([n.s1], test); |
| |
| n.c2.setAttribute('slot', 'slot1'); |
| }, 'slotchange event: Change slot= attribute to make it assigned.'); |
| |
| async_test((test) => { |
| let n = createTestTree(test2); |
| removeWhiteSpaceOnlyTextNodes(n.test2); |
| |
| doneIfSlotChange([n.s1], test); |
| |
| n.s1.setAttribute('name', 'slot2'); |
| }, 'slotchange event: Change slot\'s name= attribute so that a node is assigned to the slot.'); |
| </script> |
| |
| <div id="test_fallback"> |
| <div id="host1"> |
| <template data-mode="open"> |
| <slot id="s1"></slot> |
| </template> |
| </div> |
| </div> |
| |
| <script> |
| async_test((test) => { |
| let n = createTestTree(test_fallback); |
| removeWhiteSpaceOnlyTextNodes(n.test_fallback); |
| |
| doneIfSlotChange([n.s1], test); |
| |
| n.s1.appendChild(document.createElement('div')); |
| }, 'slotchange event: Add a fallback content.'); |
| </script> |
| |
| <div id="test_fallback2"> |
| <div id="host1"> |
| <template data-mode="open"> |
| <slot id="s1"> |
| <div id="f1"></div> |
| </slot> |
| </template> |
| </div> |
| </div> |
| |
| <script> |
| async_test((test) => { |
| let n = createTestTree(test_fallback2); |
| removeWhiteSpaceOnlyTextNodes(n.test_fallback2); |
| |
| doneIfSlotChange([n.s1], test); |
| |
| n.f1.remove(); |
| }, 'slotchange event: Remove a fallback content.'); |
| </script> |
| |
| <div id="test_fallback3"> |
| <div id="host1"> |
| <template data-mode="open"> |
| <slot id="s2"> |
| <slot id="s1"> |
| <div id="f1"></div> |
| </slot> |
| </slot> |
| </template> |
| </div> |
| </div> |
| |
| <script> |
| async_test((test) => { |
| let n = createTestTree(test_fallback3); |
| removeWhiteSpaceOnlyTextNodes(n.test_fallback3); |
| |
| doneIfSlotChange([n.s1, n.s2], test); |
| |
| n.s1.appendChild(document.createElement('div')); |
| }, 'slotchange event: Add a fallback content to nested slots.'); |
| |
| async_test((test) => { |
| let n = createTestTree(test_fallback3); |
| removeWhiteSpaceOnlyTextNodes(n.test_fallback3); |
| |
| doneIfSlotChange([n.s1, n.s2], test); |
| |
| n.f1.remove(); |
| }, 'slotchange event: Remove a fallback content from nested slots.'); |
| </script> |
| |
| <div id="test3"> |
| <div id="host1"> |
| <template id="shadowroot" data-mode="open"> |
| <slot id="s1" name="slot1"></slot> |
| </template> |
| <div id="c1" slot="slot1"></div> |
| </div> |
| </div> |
| |
| <script> |
| async_test((test) => { |
| let n = createTestTree(test3); |
| removeWhiteSpaceOnlyTextNodes(n.test3); |
| |
| doneIfSlotChange([n.s1], test); |
| |
| let slot = document.createElement('slot'); |
| slot.setAttribute('name', 'slot1'); |
| n.shadowroot.insertBefore(slot, n.s1); |
| }, "slotchange event: Insert a slot before an existing slot."); |
| </script> |
| |
| <div id="test4"> |
| <div id="host1"> |
| <template id="shadowroot" data-mode="open"> |
| <slot id="s1" name="slot1"></slot> |
| <slot id="s2" name="slot1"></slot> |
| </template> |
| <div id="c1" slot="slot1"></div> |
| </div> |
| </div> |
| |
| <script> |
| async_test((test) => { |
| let n = createTestTree(test4); |
| removeWhiteSpaceOnlyTextNodes(n.test4); |
| |
| doneIfSlotChange([n.s2], test); |
| |
| n.s1.remove(); |
| }, "slotchange event: Remove a preceding slot."); |
| </script> |
| |
| <div id="test5"> |
| <div id="host1"> |
| <template data-mode="open"> |
| <div id="host2"> |
| <template data-mode="open"> |
| <slot id="s2" name="slot2"></slot> |
| </template> |
| <slot id="s1" name="slot1" slot="slot2"></slot> |
| </div> |
| </template> |
| <div id="c1" slot="slot1"></div> |
| </div> |
| </div> |
| |
| <script> |
| async_test((test) => { |
| let n = createTestTree(test5); |
| removeWhiteSpaceOnlyTextNodes(n.test5); |
| |
| doneIfSlotChange([n.s1, n.s2], test); |
| |
| n.c1.remove(); |
| }, "slotchange event: A slot is assigned to another slot."); |
| </script> |
| |
| <div id="test6"> |
| <div id="host1"> |
| <template data-mode="open"> |
| <div id="host2"> |
| <template data-mode="open"> |
| <slot id="s2" name="slot2"></slot> |
| </template> |
| <slot id="s1" name="slot1" slot="slot2"></slot> |
| </div> |
| </template> |
| </div> |
| </div> |
| |
| <script> |
| async_test((test) => { |
| let n = createTestTree(test6); |
| removeWhiteSpaceOnlyTextNodes(n.test6); |
| |
| doneIfSlotChange([n.s2], test); |
| |
| n.s1.remove(); |
| }, "slotchange event: Even if distributed nodes do not change, slotchange should be fired if assigned nodes are changed."); |
| </script> |
