| <!DOCTYPE html> |
| <html> |
| <head> |
| <style> |
| body { |
| width: 2000px; |
| height: 2000px; |
| } |
| button { |
| position: absolute; |
| width: 50px; |
| height: 50px; |
| } |
| #b1 { |
| left: 200px; |
| top: 100px; |
| } |
| #b2 { |
| left: 500px; |
| top: 400px; |
| } |
| </style> |
| <script src="../../resources/js-test-pre.js"></script> |
| </head> |
| <body onload="runTest();" style="width:2000px;height:2000px;margin:0px;padding:100px"> |
| <button id="b1"></button> |
| <button id="b2"></button> |
| <script> |
| function runTest() { |
| description("This test applies page scale and scrolls the page, and checks that elementFromPoint returns the correct element."); |
| if (window.internals) { |
| window.internals.settings.setClientCoordinatesRelativeToLayoutViewport(true); |
| window.internals.setPageScaleFactor(2, 0, 0); |
| } |
| window.scrollTo(100, 100); |
| |
| // The layout viewport hasn't been scrolled. |
| shouldBe("document.elementFromPoint(225, 125)", "b1"); |
| shouldBe("document.elementFromPoint(525, 425)", "b2"); |
| |
| window.scrollTo(200, 200); |
| |
| // b1 is now offscreen, but still within the layout viewport. |
| shouldBe("document.elementFromPoint(225, 125)", "b1"); |
| shouldBe("document.elementFromPoint(525, 425)", "b2"); |
| |
| window.scrollTo(500, 400); |
| shouldBe("document.elementFromPoint(115, 15)", "b1"); |
| shouldBe("document.elementFromPoint(415, 315)", "b2"); |
| |
| window.scrollTo(700, 400); |
| shouldBeNull("document.elementFromPoint(-85, 15)"); |
| shouldBe("document.elementFromPoint(215, 315)", "b2"); |
| |
| finishJSTest(); |
| } |
| </script> |
| <script src="../../resources/js-test-post.js"></script> |
| </body> |
| </html> |
