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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 verifySetViewportOffsets() { |
| 18 // Set viewport offset. Listener called twice. |
| 19 document.visualViewport.scrollTop = 20; |
| 20 requestAnimationFrame(function() { |
| 21 shouldBe("numCalls", "3"); |
| 22 document.visualViewport.scrollLeft = 0; |
| 23 requestAnimationFrame(function() { |
| 24 shouldBe("numCalls", "4"); |
| 25 finishJSTest(); |
| 26 }); |
| 27 }); |
| 28 } |
| 29 |
| 30 function runTest() { |
| 31 if (!window.eventSender || !window.internals) { |
| 32 finishJSTest(); |
| 33 return; |
| 34 } |
| 35 // Turn off smooth scrolling. |
| 36 internals.settings.setScrollAnimatorEnabled(false); |
| 37 |
| 38 document.addEventListener('visualviewportchanged', function(e) { |
| 39 numCalls++; |
| 40 }); |
| 41 |
| 42 // Scroll both viewports. Listner not called. |
| 43 eventSender.mouseMoveTo(100, 100); |
| 44 eventSender.continuousMouseScrollBy(100, 100); |
| 45 shouldBe("numCalls", "0"); |
| 46 |
| 47 // Scale and scroll visual viewport. Listener called twice. |
| 48 internals.setPageScaleFactor(2); |
| 49 requestAnimationFrame(function() { |
| 50 shouldBe("numCalls", "1"); |
| 51 internals.setVisualViewportOffset(10, 10); |
| 52 requestAnimationFrame(function() { |
| 53 shouldBe("numCalls", "2"); |
| 54 verifySetViewportOffsets(); |
| 55 }); |
| 56 }); |
| 57 } |
| 58 </script> |
| 59 |
| 60 <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