| <!DOCTYPE html> |
| <meta charset="utf-8" > |
| <meta name="author" title="Di Zhang" href="mailto:dizhangg@chromium.org"> |
| <meta name="assert" content="Modify slot fallback contents, when dynamically created."> |
| <title>Shadow DOM: Slots and fallback contents</title> |
| <link rel="match" href="slot-fallback-content-003-ref.html"> |
| |
| <p>Test passes if there are two lines of text "SLOT1", "A" below.</p> |
| |
| <div id="host1"><slot id="slot1">SLOT1</slot></div> |
| |
| <p>Test passes if there is one line of text "C" below.</p> |
| |
| <div id="host2"><slot id="slot2"> |
| <div id="B">FAIL</div> |
| <div id="C">C</div> |
| </slot></div> |
| |
| <p>Test passes if empty.</p> |
| |
| <div id="host3"> |
| <slot id="slot3"> |
| <div id="D">FAIL</div> |
| </slot> |
| </div> |
| |
| <script> |
| // Content added to existing fallback content will be rendered |
| const shadowRoot1 = host1.attachShadow({ mode: "open" }); |
| shadowRoot1.appendChild(slot1); |
| const A = document.createElement('div'); |
| A.innerText = 'A'; |
| shadowRoot1.getElementById('slot1').appendChild(A); |
| |
| // Remove some content from existing slot fallback will render the leftover fallback |
| const shadowRoot2 = host2.attachShadow({ mode: "open" }); |
| shadowRoot2.appendChild(slot2); |
| const B = shadowRoot2.getElementById('B'); |
| B.remove(); |
| |
| // // Remove all content from existing slot fallback will render no fallback |
| const shadowRoot3 = host3.attachShadow({ mode: "open" }); |
| shadowRoot3.appendChild(slot3); |
| const D = shadowRoot3.getElementById('D'); |
| D.remove(); |
| |
| </script> |