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| (Empty) | |
| 1 <!DOCTYPE html> |
| 2 <script src="../../../resources/js-test.js"></script> |
| 3 <style> |
| 4 body { |
| 5 height: 2000px; |
| 6 width: 2000px; |
| 7 } |
| 8 </style> |
| 9 |
| 10 <script> |
| 11 window.jsTestIsAsync = true; |
| 12 var numCalls = 0; |
| 13 |
| 14 description("This test verifies that that visualviewportchanged event gets \ |
| 15 fired when the visual viewport is scaled or scrolled."); |
| 16 |
| 17 function runTest() { |
| 18 if (!window.eventSender || !window.internals) { |
| 19 finishJSTest(); |
| 20 return; |
| 21 } |
| 22 // Turn off smooth scrolling. |
| 23 internals.settings.setScrollAnimatorEnabled(false); |
| 24 |
| 25 document.addEventListener('visualviewportchanged', function(e) { |
| 26 numCalls++; |
| 27 }); |
| 28 |
| 29 // Scroll both viewports. Listner not called. |
| 30 eventSender.mouseMoveTo(100, 100); |
| 31 eventSender.continuousMouseScrollBy(100, 100); |
| 32 shouldBe("numCalls", "0"); |
| 33 |
| 34 // Scale and scroll visual viewport. Listener called twice. |
| 35 internals.setPageScaleFactor(2); |
| 36 shouldBe("numCalls", "1"); |
| 37 internals.setVisualViewportOffset(10, 10); |
| 38 shouldBe("numCalls", "2"); |
| 39 |
| 40 // Set viewport offset. Listener called twice. |
| 41 document.visualViewport.scrollTop = 20; |
| 42 shouldBe("numCalls", "3"); |
| 43 document.visualViewport.scrollLeft = 0; |
| 44 shouldBe("numCalls", "4"); |
| 45 finishJSTest(); |
| 46 } |
| 47 </script> |
| 48 |
| 49 <body onload="runTest()"></body> |
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Chromium Code Reviews
Issue 1814013002:
Visual viewport API initial implementation. (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master