| <!DOCTYPE HTML> |
| <html> |
| <head> |
| <script src="../../resources/accessibility-helper.js"></script> |
| <script src="../../resources/js-test.js"></script> |
| </head> |
| <body> |
| |
| <div id="container"></div> |
| |
| <script> |
| window.jsTestIsAsync = true; |
| |
| var output = "This test ensures AXPrimaryScreenHeight is non-zero for an iframe whose accessibility tree is built after accessibility is already active (a height of 0 mirrors elements vertically).\n\n"; |
| |
| function checkPrimaryScreenHeight(element, label) { |
| return new Promise((resolve) => { |
| element.attributeValueAsync("_AXPrimaryScreenHeight", (value) => { |
| if (value > 0) |
| output += `PASS: ${label} AXPrimaryScreenHeight is > 0.\n`; |
| else |
| output += `FAIL: ${label} AXPrimaryScreenHeight should be > 0 but was ${value}.\n`; |
| resolve(); |
| }); |
| }); |
| } |
| |
| window.addEventListener("load", () => { |
| setTimeout(async () => { |
| if (!window.accessibilityController) { |
| finishJSTest(); |
| return; |
| } |
| |
| // Touch the main tree so the web process transitions to isolated-tree (AXThread) mode. Any |
| // AXObjectCache constructed after this point arms its build timer in its constructor, so the |
| // iframe we insert below gets its isolated tree built via that timer (the previously-broken path). |
| const root = accessibilityController.rootElement; |
| await waitForFrameGeometryReady(); |
| await checkPrimaryScreenHeight(root, "Main-frame root element"); |
| |
| // Now insert the iframe. Because AXThread mode is already active, its cache builds the isolated |
| // tree via the constructor's build timer -> AXIsolatedTree::create(), not getOrCreateIsolatedTree(). |
| document.getElementById("container").innerHTML = |
| "<iframe id='iframe' src=\"data:text/html,<body><h1 id='target'>Iframe heading</h1></body>\"></iframe>"; |
| |
| // Wait for the iframe's isolated tree and frame geometry to be built, then read |
| // AXPrimaryScreenHeight from an element inside it. It must be > 0. |
| const target = await waitForIframeAccessibilityReady("container", "target"); |
| if (!target) |
| output += "FAIL: could not find the iframe's target element in the accessibility tree.\n"; |
| else |
| await checkPrimaryScreenHeight(target, "Iframe descendant element"); |
| |
| debug(output); |
| finishJSTest(); |
| }, 0); |
| }); |
| </script> |
| </body> |
| </html> |
