helper_zoom_keyboardscroll.html (2789B)
1 <!DOCTYPE HTML> 2 <html> 3 <head> 4 <meta charset="utf-8"> 5 <meta name="viewport" content="width=device-width, minimum-scale=1.0"> 6 <title>Tests that keyboard arrow keys scroll after zooming in when there was no scrollable overflow before zooming</title> 7 <script src="/tests/SimpleTest/EventUtils.js"></script> 8 <script type="application/javascript" src="apz_test_utils.js"></script> 9 <script type="application/javascript" src="apz_test_native_event_utils.js"></script> 10 <script src="/tests/SimpleTest/paint_listener.js"></script> 11 </head> 12 <body> 13 <div style="height: 20000px; background-color: green"></div> 14 <script type="application/javascript"> 15 const utils = SpecialPowers.getDOMWindowUtils(window); 16 17 async function test() { 18 is(await getResolution(), 1.0, "should not be zoomed (1)"); 19 20 is(window.scrollX, 0, "shouldn't have scrolled (2)"); 21 is(window.scrollY, 0, "shouldn't have scrolled (3)"); 22 is(visualViewport.pageTop, 0, "shouldn't have scrolled (4)"); 23 is(visualViewport.pageLeft, 0, "shouldn't have scrolled (5)"); 24 25 // Zoom in 26 SpecialPowers.getDOMWindowUtils(window).setResolutionAndScaleTo(2.0); 27 await promiseApzFlushedRepaints(); 28 await promiseFrame(); 29 30 is(await getResolution(), 2.0, "should have zoomed (6)"); 31 32 is(window.scrollX, 0, "shouldn't have scrolled (7)"); 33 is(window.scrollY, 0, "shouldn't have scrolled (8)"); 34 is(visualViewport.pageTop, 0, "shouldn't have scrolled (9)"); 35 is(visualViewport.pageLeft, 0, "shouldn't have scrolled (10)"); 36 37 window.synthesizeKey("KEY_ArrowRight"); 38 39 await promiseApzFlushedRepaints(); 40 await promiseFrame(); 41 42 is(await getResolution(), 2.0, "should be zoomed (11)"); 43 44 is(window.scrollX, 0, "shouldn't have scrolled (12)"); 45 is(window.scrollY, 0, "shouldn't have scrolled (13)"); 46 is(visualViewport.pageTop, 0, "shouldn't have scrolled (14)"); 47 isnot(visualViewport.pageLeft, 0, "should have scrolled (15)"); 48 49 window.synthesizeKey("KEY_ArrowDown"); 50 51 await promiseApzFlushedRepaints(); 52 await promiseFrame(); 53 54 is(await getResolution(), 2.0, "should be zoomed (16)"); 55 56 is(window.scrollX, 0, "shouldn't have scrolled (17)"); 57 is(window.scrollY, 0, "shouldn't have scrolled (18)"); 58 isnot(visualViewport.pageTop, 0, "should have scrolled (19)"); 59 isnot(visualViewport.pageLeft, 0, "should have scrolled (20)"); 60 61 // Zoom back out 62 SpecialPowers.getDOMWindowUtils(window).setResolutionAndScaleTo(1.0); 63 await promiseApzFlushedRepaints(); 64 await promiseFrame(); 65 66 is(await getResolution(), 1.0, "should not be zoomed (21)"); 67 } 68 69 waitUntilApzStable() 70 .then(test) 71 .then(subtestDone, subtestFailed); 72 </script> 73 </body> 74 </html>