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|---|
| (Empty) | |
| 1 <!DOCTYPE html> |
| 2 <style> |
| 3 ::-webkit-scrollbar { |
| 4 width: 0px; |
| 5 height: 0px; |
| 6 } |
| 7 |
| 8 body, html { |
| 9 width: 100%; |
| 10 height: 100%; |
| 11 margin: 0px; |
| 12 } |
| 13 |
| 14 #rootscroller { |
| 15 width: 100%; |
| 16 height: 100%; |
| 17 overflow: auto; |
| 18 } |
| 19 |
| 20 #dialog { |
| 21 position: fixed; |
| 22 left: 50px; |
| 23 right: 50px; |
| 24 top: 50px; |
| 25 bottom: 50px; |
| 26 overflow: auto; |
| 27 } |
| 28 |
| 29 .bigspace { |
| 30 width: 2000px; |
| 31 height: 2000px; |
| 32 background-image: repeating-linear-gradient( |
| 33 45deg, |
| 34 yellow, |
| 35 yellow 80px, |
| 36 orange 80px, |
| 37 orange 160px); |
| 38 } |
| 39 |
| 40 .bigspace2 { |
| 41 width: 2000px; |
| 42 height: 2000px; |
| 43 background-image: repeating-linear-gradient( |
| 44 -45deg, |
| 45 blue, |
| 46 blue 80px, |
| 47 red 80px, |
| 48 red 160px); |
| 49 } |
| 50 |
| 51 </style> |
| 52 |
| 53 <div id="rootscroller"> |
| 54 To test manually, try scrolling the red/orange box past the end. Scrolling |
| 55 shouldn't chain up to this blue/red box. |
| 56 <div class="bigspace2"></div> |
| 57 </div> |
| 58 <div id="dialog"> |
| 59 <div class="bigspace"></div> |
| 60 </div> |
| 61 |
| 62 <script src="../../resources/testharness.js"></script> |
| 63 <script src="../../resources/testharnessreport.js"></script> |
| 64 |
| 65 <script> |
| 66 var rootScroller = document.querySelector('#rootscroller'); |
| 67 var dialog = document.querySelector('#dialog'); |
| 68 |
| 69 document.rootScroller = rootScroller; |
| 70 |
| 71 var dialogRect = dialog.getBoundingClientRect(); |
| 72 |
| 73 var x = dialogRect.left + dialogRect.width / 2; |
| 74 var y = dialogRect.top + dialogRect.height / 2; |
| 75 |
| 76 test(function() { |
| 77 if (!window.eventSender) |
| 78 return; |
| 79 |
| 80 // Sanity check - there should be no initial scroll. |
| 81 assert_equals(dialog.scrollLeft, 0); |
| 82 assert_equals(dialog.scrollTop, 0); |
| 83 assert_equals(rootscroller.scrollLeft, 0); |
| 84 assert_equals(rootscroller.scrollTop, 0); |
| 85 |
| 86 // This scroll should fully scroll the dialog |
| 87 eventSender.gestureScrollBegin(x, y); |
| 88 eventSender.gestureScrollUpdate(-3000, 0); |
| 89 eventSender.gestureScrollUpdate(0, -3000); |
| 90 eventSender.gestureScrollEnd(0, 0); |
| 91 |
| 92 assert_equals(dialog.scrollLeft, dialog.scrollWidth - dialog.clientWid
th); |
| 93 assert_equals(dialog.scrollTop, dialog.scrollHeight - dialog.clientHei
ght); |
| 94 assert_equals(rootscroller.scrollLeft, 0); |
| 95 assert_equals(rootscroller.scrollTop, 0); |
| 96 |
| 97 // This scroll would normally chain up to the viewport but the "real" |
| 98 // viewport has no scrolling. Make sure we don't scroll the |
| 99 // document.rootScroller. |
| 100 eventSender.gestureScrollBegin(x, y); |
| 101 eventSender.gestureScrollUpdate(-3000, 0); |
| 102 eventSender.gestureScrollUpdate(0, -3000); |
| 103 eventSender.gestureScrollEnd(0, 0); |
| 104 |
| 105 assert_equals(dialog.scrollLeft, dialog.scrollWidth - dialog.clientWid
th); |
| 106 assert_equals(dialog.scrollTop, dialog.scrollHeight - dialog.clientHei
ght); |
| 107 assert_equals(rootscroller.scrollLeft, 0); |
| 108 assert_equals(rootscroller.scrollTop, 0); |
| 109 |
| 110 }, 'Scrolls on the dialog should not chain to the sibling root scroller.'); |
| 111 </script> |
| OLD | NEW |
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Chromium Code Reviews
Issue 2365793002:
Fix scroll chaining for non-descendants of root scroller. (Closed)
