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Side by Side Diff: third_party/WebKit/LayoutTests/fast/scrolling/set-root-scroller.html

Issue 2128553002: Make rootScroller the layout viewport. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@viewportScrollCallbackInterface
Patch Set: Rebase + comment fix in test Created 4 years, 5 months ago
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1 <!DOCTYPE html> 1 <!DOCTYPE html>
2 <style> 2 <style>
3 ::-webkit-scrollbar { 3 ::-webkit-scrollbar {
4 width: 0px; 4 width: 0px;
5 height: 0px; 5 height: 0px;
6 } 6 }
7 7
8 body, html { 8 body, html {
9 width: 100%; 9 width: 100%;
10 height: 100%; 10 height: 100%;
11 } 11 }
12 12
13 body { 13 body {
14 margin: 0px; 14 margin: 0px;
15 } 15 }
16 16
17 #container { 17 #container {
18 width: 100%; 18 width: 100%;
19 height: 100%; 19 height: 100%;
20 overflow: auto; 20 overflow: auto;
21 } 21 }
22 22
23 #spacer { 23 #parent {
24 width: 100%;
25 height: 100%;
26 overflow: auto;
27 }
28
29 .spacer {
24 width: 2000px; 30 width: 2000px;
25 height: 2000px; 31 height: 2000px;
26 } 32 }
27 33
28 #rootspacer { 34 #rootspacer {
29 width: 1000px; 35 width: 1000px;
30 height: 1000px; 36 height: 1000px;
31 position: absolute; 37 position: absolute;
32 top: 0px; 38 top: 0px;
33 left: 0px; 39 left: 0px;
34 z-index: -1; 40 z-index: -1;
35 } 41 }
36 </style> 42 </style>
37 43
38 <div id="container"> 44 <div id="parent">
39 <div id="spacer"> 45 <div id="container">
40 <span id="spanner">TEST</span> 46 <div class="spacer">
47 <span id="spanner">TEST</span>
48 </div>
41 </div> 49 </div>
50 <div class="spacer"></div>
42 </div> 51 </div>
43 <div id="rootspacer"></div> 52 <div id="rootspacer"></div>
44 53
45 <script src="../../resources/testharness.js"></script> 54 <script src="../../resources/testharness.js"></script>
46 <script src="../../resources/testharnessreport.js"></script> 55 <script src="../../resources/testharnessreport.js"></script>
47 56
48 <script> 57 <script>
58 var parentScroller = document.querySelector('#parent');
59 var container = document.querySelector('#container');
60 var spanner = document.querySelector('#spanner');
61
49 test(function() { 62 test(function() {
50 assert_false(typeof document.rootScroller === 'undefined'); 63 assert_false(typeof document.rootScroller === 'undefined');
51 }, 'setRootScroller API enabled'); 64 }, 'setRootScroller API enabled');
52 65
53 // TODO(bokan): Break this test up, failing asserts are hard to find.
54 test(function() { 66 test(function() {
55 // Setting the container object should succeed. 67 // Setting the container object should succeed.
56 assert_equals(document.rootScroller, null); 68 assert_equals(document.rootScroller, null);
57 var container = document.querySelector('#container'); 69 document.rootScroller = container;
58 document.rootScroller = container; 70 assert_equals(document.rootScroller, container);
59 assert_equals(document.rootScroller, container); 71 document.rootScroller = null;
72 assert_equals(document.rootScroller, null);
73 }, 'Setter and getter on a valid element works');
60 74
61 // Trying to set the <span> should succeed even though it's not a valid 75 test(function() {
62 // scroller. 76 // Trying to set the <span> should succeed even though it's not a valid
63 var spanner = document.querySelector('#spanner'); 77 // scroller.
64 document.rootScroller = spanner; 78 document.rootScroller = spanner;
65 assert_equals(document.rootScroller, spanner); 79 assert_equals(document.rootScroller, spanner);
80 }, 'Can set a non-scrolling element as the rootScroller');
66 81
67 // Scroll the container <div> past the end. The scrolls should not chain 82 test(function() {
68 // past the rootScroller to the scrollingElement. 83 // Scroll the container <div> past the end. The scrolls should not chain
69 document.rootScroller = container; 84 // past the rootScroller to the parentScroller element.
70 if (typeof eventSender !== 'undefined') { 85 document.rootScroller = container;
71 eventSender.gestureScrollBegin(500, 500); 86 if (typeof eventSender !== 'undefined') {
72 eventSender.gestureScrollUpdate(-300, -300); 87 eventSender.gestureScrollBegin(500, 500);
73 eventSender.gestureScrollEnd(0, 0); 88 eventSender.gestureScrollUpdate(-300, -300);
74 eventSender.gestureScrollBegin(500, 500); 89 eventSender.gestureScrollEnd(0, 0);
75 eventSender.gestureScrollUpdate(-300, -300); 90 eventSender.gestureScrollBegin(500, 500);
76 eventSender.gestureScrollEnd(0, 0); 91 eventSender.gestureScrollUpdate(-300, -300);
77 eventSender.gestureScrollBegin(500, 500); 92 eventSender.gestureScrollEnd(0, 0);
78 eventSender.gestureScrollUpdate(-300, -300); 93 eventSender.gestureScrollBegin(500, 500);
79 eventSender.gestureScrollEnd(0, 0); 94 eventSender.gestureScrollUpdate(-300, -300);
80 eventSender.gestureScrollBegin(500, 500); 95 eventSender.gestureScrollEnd(0, 0);
81 eventSender.gestureScrollUpdate(-300, -300); 96 eventSender.gestureScrollBegin(500, 500);
82 eventSender.gestureScrollUpdate(-300, -300); 97 eventSender.gestureScrollUpdate(-300, -300);
83 eventSender.gestureScrollUpdate(-300, -300); 98 eventSender.gestureScrollUpdate(-300, -300);
84 eventSender.gestureScrollEnd(0, 0);
85 99
86 assert_equals(container.scrollTop, 2000 - 600); 100 assert_equals(container.scrollTop, 2000 - 600);
87 assert_equals(container.scrollLeft, 2000 - 800); 101 assert_equals(container.scrollLeft, 2000 - 800);
88 assert_equals(document.scrollingElement.scrollTop, 0);
89 assert_equals(document.scrollingElement.scrollLeft, 0);
90 }
91 102
92 // Making the current rootScroller an invalid scroller should fallback to 103 // The container is now fully scrolled. Normally, further scroll
93 // the default element, the documentElement, but the rootScroller property 104 // events would chain up to the parent element but, because the
94 // should remain the same. 105 // container is the root scroller, we shouldn't chain up past it.
95 container.style.width = "95%"; 106 eventSender.gestureScrollUpdate(-300, -300);
96 assert_equals(document.rootScroller, container); 107 eventSender.gestureScrollEnd(0, 0);
108 eventSender.gestureScrollBegin(500, 500);
109 eventSender.gestureScrollUpdate(-300, -300);
110 eventSender.gestureScrollEnd(0, 0);
97 111
98 // Now scrolling over the <div> should scroll the scrollingElement since the 112 assert_equals(container.scrollTop, 2000 - 600);
99 // rootElement is invalid (doesn't fill the viewport). 113 assert_equals(container.scrollLeft, 2000 - 800);
100 if (typeof eventSender !== 'undefined') { 114 assert_equals(parentScroller.scrollTop, 0);
101 eventSender.gestureScrollBegin(500, 500); 115 assert_equals(parentScroller.scrollLeft, 0);
102 eventSender.gestureScrollUpdate(-300, -300); 116 }
103 eventSender.gestureScrollEnd(0, 0); 117 }, "Scrolls don't chain past root scroller element");
104 eventSender.gestureScrollBegin(500, 500);
105 eventSender.gestureScrollUpdate(-300, -300);
106 eventSender.gestureScrollEnd(0, 0);
107 eventSender.gestureScrollBegin(500, 500);
108 eventSender.gestureScrollUpdate(-300, -300);
109 eventSender.gestureScrollEnd(0, 0);
110 eventSender.gestureScrollBegin(500, 500);
111 eventSender.gestureScrollUpdate(-300, -300);
112 eventSender.gestureScrollEnd(0, 0);
113 118
114 assert_equals(document.scrollingElement.scrollTop, 400); 119 test(function() {
115 assert_equals(document.scrollingElement.scrollLeft, 200); 120 document.rootScroller = container;
116 } 121 container.scrollTop = 999;
122 container.scrollLeft = 998;
117 123
118 // Don't output the text in spanner. 124 // Window.scrollX and scrollY should reflect the scroll offset of the
119 document.querySelector('#spanner').style.display = 'none'; 125 // rootScroller
126 assert_equals(container.scrollTop, 999);
127 assert_equals(container.scrollLeft, 998);
128 assert_equals(window.scrollY, container.scrollTop);
129 assert_equals(window.scrollX, container.scrollLeft);
130 assert_equals(document.scrollingElement.scrollTop, container.scrollTop);
131 assert_equals(document.scrollingElement.scrollLeft, container.scrollLeft);
120 132
121 }, 'Test the setRootScroller API basic functionality'); 133 }, "document.scrollingElement and window scroll API reflect rootScroller offse ts");
134
135 test(function() {
136 // Making the current rootScroller an invalid scroller (by making it not
137 // fill the viewport) should fallback to the default element, the
138 // documentElement, but the rootScroller property should remain the same.
139 document.rootScroller = container;
140 container.style.width = "95%";
141 assert_equals(document.rootScroller, container);
142
143 // Reset parentScroller's offsets, make container fully scrolled.
144 parentScroller.scrollTop = 0;
145 parentScroller.scrollLeft = 0;
146 container.scrollTop = 10000;
147 container.scrollLeft = 10000;
148
149 // Now scrolling over the container should scroll the scrollingElement
150 // since the rootElement is invalid (doesn't fill the viewport).
151 if (typeof eventSender !== 'undefined') {
152 eventSender.gestureScrollBegin(500, 500);
153 eventSender.gestureScrollUpdate(-300, -300);
154 eventSender.gestureScrollEnd(0, 0);
155 eventSender.gestureScrollBegin(500, 500);
156 eventSender.gestureScrollUpdate(-300, -300);
157 eventSender.gestureScrollEnd(0, 0);
158 eventSender.gestureScrollBegin(500, 500);
159 eventSender.gestureScrollUpdate(-300, -300);
160 eventSender.gestureScrollEnd(0, 0);
161
162 assert_equals(parentScroller.scrollTop, 900);
163 assert_equals(parentScroller.scrollLeft, 900);
164 }
165 }, "Setting an invalid rootScroller should reset to using the documentElemen t.");
122 </script> 166 </script>
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