| <!doctype HTML> |
| |
| <!-- |
| Runs an acquireDisplayLock, which suspends the context twice and schedules |
| a continuation; later resumes the context (twice). |
| --> |
| |
| <style> |
| #container { |
| contain: content; |
| width: 150px; |
| height: 150px; |
| background: lightblue; |
| } |
| #pass_child { |
| width: 50px; |
| height: 50px; |
| background: lightgreen; |
| } |
| #fail_child { |
| width: 50px; |
| height: 50px; |
| background: red; |
| } |
| </style> |
| |
| <div id="log"></div> |
| |
| <script> |
| if (window.testRunner) |
| window.testRunner.waitUntilDone(); |
| |
| var child_class = "fail_child"; |
| function modifyDom(context) { |
| let child = document.createElement("div"); |
| child.id = child_class; |
| context.lockedElement.appendChild(child); |
| } |
| |
| function finishTest(status_string) { |
| if (document.getElementById("log").innerHTML === "") |
| document.getElementById("log").innerHTML = status_string; |
| if (window.testRunner) |
| window.testRunner.notifyDone(); |
| } |
| |
| function acquire() { |
| let current_status = "FAIL"; |
| let resume_handle1; |
| let resume_handle2; |
| let container = document.createElement("div"); |
| container.id = "container"; |
| container.acquireDisplayLock((context) => { |
| context.schedule(modifyDom); |
| resume_handle1 = context.suspend(); |
| resume_handle2 = context.suspend(); |
| }).then( |
| () => { finishTest(current_status); }, |
| () => { finishTest("FAIL - rejected"); }); |
| document.body.appendChild(container); |
| setTimeout(() => { |
| resume_handle1.resume(); |
| setTimeout(() => { |
| current_status = "PASS"; |
| child_class = "pass_child"; |
| resume_handle2.resume(); |
| }, 100); |
| }, 100); |
| } |
| |
| window.onload = acquire; |
| </script> |
| |
