| OLD | NEW |
|---|
| (Empty) |
| 1 <!DOCTYPE html> | |
| 2 <html> | |
| 3 <head> | |
| 4 <meta charset="utf-8"> | |
| 5 <title>Scroll customization methods are called appropriately.</title> | |
| 6 <script src="../../../resources/testharness.js"></script> | |
| 7 <script src="../../../resources/testharnessreport.js"></script> | |
| 8 <style> | |
| 9 | |
| 10 * { | |
| 11 margin:0; | |
| 12 padding:0; | |
| 13 } | |
| 14 | |
| 15 *::-webkit-scrollbar { | |
| 16 width: 0 !important; | |
| 17 height: 0 !important; | |
| 18 } | |
| 19 | |
| 20 #a { | |
| 21 height:400px; | |
| 22 width:400px; | |
| 23 overflow:scroll; | |
| 24 } | |
| 25 | |
| 26 #b { | |
| 27 height:500px; | |
| 28 width:500px; | |
| 29 background-color:purple; | |
| 30 } | |
| 31 | |
| 32 #c { | |
| 33 height:300px; | |
| 34 width:300px; | |
| 35 overflow:scroll; | |
| 36 } | |
| 37 | |
| 38 #d { | |
| 39 height:400px; | |
| 40 width:400px; | |
| 41 background-color:green; | |
| 42 } | |
| 43 | |
| 44 body { | |
| 45 height:3000px; | |
| 46 } | |
| 47 | |
| 48 </style> | |
| 49 </head> | |
| 50 <body> | |
| 51 | |
| 52 <div id="a"> | |
| 53 <div id="b"> | |
| 54 <div id="c"> | |
| 55 <div id="d"> | |
| 56 </div> | |
| 57 </div> | |
| 58 </div> | |
| 59 </div> | |
| 60 | |
| 61 <script> | |
| 62 test(function() { | |
| 63 assert_true('ScrollState' in window, "'ScrollState' in window"); | |
| 64 }, "These tests only work with scroll customization enabled."); | |
| 65 | |
| 66 internals.settings.setScrollAnimatorEnabled(false); | |
| 67 | |
| 68 var originalApplyScrolls = []; | |
| 69 var originalDistributeScrolls = []; | |
| 70 var deltas = [-85, -75, -65, -55, -45]; | |
| 71 | |
| 72 var elements = [ | |
| 73 document.getElementById("d"), | |
| 74 document.getElementById("c"), | |
| 75 document.getElementById("b"), | |
| 76 document.getElementById("a"), | |
| 77 document.scrollingElement]; | |
| 78 | |
| 79 var scrollableElements = [elements[1], elements[3], elements[4]]; | |
| 80 | |
| 81 document.scrollingElement.id = "scrollingElement"; | |
| 82 | |
| 83 function reset() { | |
| 84 for (var i = 0; i < elements.length; ++i) { | |
| 85 elements[i].scrollTop = 0; | |
| 86 elements[i].unappliedDeltaY = []; | |
| 87 elements[i].distributedDeltaY = []; | |
| 88 elements[i].numberOfScrollBegins = 0; | |
| 89 elements[i].numberOfScrollEnds = 0; | |
| 90 | |
| 91 elements[i].setApplyScroll((function(scrollState){ | |
| 92 if (!scrollState.isEnding && !scrollState.isBeginning) | |
| 93 this.unappliedDeltaY.push(scrollState.deltaY); | |
| 94 }).bind(elements[i]), "perform-after-native-scroll"); | |
| 95 | |
| 96 elements[i].setDistributeScroll((function(scrollState) { | |
| 97 if (scrollState.isBeginning) | |
| 98 this.numberOfScrollBegins++; | |
| 99 else if (scrollState.isEnding) | |
| 100 this.numberOfScrollEnds++; | |
| 101 else | |
| 102 this.distributedDeltaY.push(scrollState.deltaY); | |
| 103 }).bind(elements[i]), "perform-before-native-scroll"); | |
| 104 } | |
| 105 } | |
| 106 | |
| 107 function applyDelta(d) { | |
| 108 eventSender.gestureScrollBegin(10, 10); | |
| 109 eventSender.gestureScrollUpdate(0, d); | |
| 110 eventSender.gestureScrollEnd(0, 0); | |
| 111 } | |
| 112 | |
| 113 if ('ScrollState' in window) { | |
| 114 test(function() { | |
| 115 reset(); | |
| 116 | |
| 117 // Scroll five times, with three scrollable elements. | |
| 118 var cScrollTop = [85, 100, 100, 100, 100]; | |
| 119 var aScrollTop = [0, 0, 65, 100, 100]; | |
| 120 var scrollingElementScrollTop = [0, 0, 0, 0, 45]; | |
| 121 | |
| 122 for (var i = 0; i < deltas.length; ++i) { | |
| 123 applyDelta(deltas[i]); | |
| 124 assert_equals(a.scrollTop, aScrollTop[i], "For id 'a' on step " + i); | |
| 125 assert_equals(c.scrollTop, cScrollTop[i], "For id 'c' on step " + i); | |
| 126 assert_equals(document.scrollingElement.scrollTop, scrollingElementScrollT
op[i], "For scrollingElement on step " + i); | |
| 127 } | |
| 128 }, "Scroll offsets are modified correctly."); | |
| 129 | |
| 130 test(function() { | |
| 131 reset(); | |
| 132 | |
| 133 // Scroll five times, with five elements. | |
| 134 var unapplied = [ | |
| 135 // d, the innermost element, never applies any scroll. | |
| 136 [-85, -75, -65, -55, -45], | |
| 137 // c applies the first two scrolls, and then hits its scroll extents. | |
| 138 [0, 0, -65, -55, -45], | |
| 139 // b doesn't scroll, and so leaves the same deltas unapplied as c. | |
| 140 [0, 0, -65, -55, -45], | |
| 141 // a hits its scroll extent on the second last step. | |
| 142 [0, 0, 0, 0, -45], | |
| 143 // The scrollingElement performs the frame scroll. | |
| 144 [0, 0, 0, 0, 0]]; | |
| 145 | |
| 146 for (var i = 0; i < deltas.length; ++i) | |
| 147 applyDelta(deltas[i]); | |
| 148 | |
| 149 for (var i = 0; i < elements.length; ++i) { | |
| 150 var el = elements[i]; | |
| 151 // Every element sees the same deltas being distributed. | |
| 152 assert_array_equals(el.distributedDeltaY, deltas, "distributed delta for "
+ el.id + ":"); | |
| 153 assert_array_equals(el.unappliedDeltaY, unapplied[i], "unapplied delta for
" + el.id + ":"); | |
| 154 } | |
| 155 | |
| 156 // Ensure that the document leaves scroll unapplied when appropriate. | |
| 157 var documentUnapplied = document.scrollingElement.unappliedDeltaY; | |
| 158 applyDelta(-4000); | |
| 159 assert_equals(documentUnapplied[documentUnapplied.length - 1], 0); | |
| 160 applyDelta(-4000); | |
| 161 assert_equals(documentUnapplied[documentUnapplied.length - 1], -4000); | |
| 162 }, "Correct amount of delta is consumed."); | |
| 163 | |
| 164 test(function() { | |
| 165 reset(); | |
| 166 | |
| 167 // Consume one pixel of delta per call to applyScroll. | |
| 168 for (var i = 0; i < elements.length; ++i) { | |
| 169 if (scrollableElements.indexOf(elements[i]) == -1) | |
| 170 continue; | |
| 171 elements[i].setApplyScroll((function(scrollState) { | |
| 172 if (scrollState.deltaY !== 0) | |
| 173 scrollState.consumeDelta(0, -1); | |
| 174 }).bind(elements[i]), "perform-before-native-scroll"); | |
| 175 } | |
| 176 | |
| 177 // Scroll five times, with three scrollable elements. | |
| 178 // The scroll distance is decreased more the higher up the scroll chain the
element is. | |
| 179 var cScrollTop = [85 - 1, 100, 100, 100, 100]; | |
| 180 var aScrollTop = [0, 0, 65 - 2, 100, 100]; | |
| 181 var scrollingElementScrollTop = [0, 0, 0, 0, 45 - 3]; | |
| 182 for (var i = 0; i < deltas.length; ++i) { | |
| 183 applyDelta(deltas[i]); | |
| 184 assert_equals(c.scrollTop, cScrollTop[i], "For id 'c' on step " + i); | |
| 185 assert_equals(a.scrollTop, aScrollTop[i], "For id 'a' on step " + i); | |
| 186 assert_equals(document.scrollingElement.scrollTop, scrollingElementScrollT
op[i], "For scrollingElement on step " + i); | |
| 187 } | |
| 188 }, "Consuming deltas prevents scrolling."); | |
| 189 | |
| 190 test(function() { | |
| 191 reset(); | |
| 192 | |
| 193 for (var i = 0; i < deltas.length; ++i) | |
| 194 applyDelta(deltas[i]); | |
| 195 | |
| 196 for (var i = 0; i < elements.length; ++i) { | |
| 197 assert_equals(elements[i].numberOfScrollBegins, deltas.length, "Incorrect
number of begin events for " + elements[i].id); | |
| 198 assert_equals(elements[i].numberOfScrollEnds, deltas.length, "Incorrect nu
mber of end events for " + elements[i].id); | |
| 199 } | |
| 200 }, "Correct number of scroll end and begin events observed."); | |
| 201 | |
| 202 { | |
| 203 // NOTE - this async test needs to be run last, as it shares state with the | |
| 204 // other tests. If other tests are run after it, they'll modify the state | |
| 205 // while this test is still running. | |
| 206 var flingTest = async_test("Touchscreen fling doesn't propagate."); | |
| 207 reset(); | |
| 208 | |
| 209 function assertScrollTops(cTop, aTop, scrollingElementTop, step) { | |
| 210 assert_equals(c.scrollTop, cTop, "For id 'c' on step " + step); | |
| 211 assert_equals(a.scrollTop, aTop, "For id 'a' on step " + step); | |
| 212 assert_equals(document.scrollingElement.scrollTop, scrollingElementTop, "F
or scrollingElement on step " + step); | |
| 213 }; | |
| 214 | |
| 215 var frame_actions = [ | |
| 216 function() { | |
| 217 eventSender.gestureFlingStart(10, 10, -1000000, -1000000, "touchscreen")
; | |
| 218 }, | |
| 219 flingTest.step_func(function() { | |
| 220 assertScrollTops(0, 0, 0, 1); | |
| 221 }), | |
| 222 flingTest.step_func(function() { | |
| 223 assertScrollTops(100, 0, 0, 2); | |
| 224 }), | |
| 225 flingTest.step_func(function() { | |
| 226 assertScrollTops(100, 0, 0, 3); | |
| 227 }), | |
| 228 flingTest.step_func(function() { | |
| 229 assertScrollTops(100, 0, 0, 4); | |
| 230 flingTest.done(); | |
| 231 }) | |
| 232 ] | |
| 233 | |
| 234 function executeFrameActions(frame_actions) { | |
| 235 var frame = 0; | |
| 236 function raf() { | |
| 237 frame_actions[frame](); | |
| 238 frame++; | |
| 239 if (frame >= frame_actions.length) | |
| 240 return; | |
| 241 window.requestAnimationFrame(raf); | |
| 242 } | |
| 243 window.requestAnimationFrame(raf); | |
| 244 } | |
| 245 | |
| 246 executeFrameActions(frame_actions); | |
| 247 } | |
| 248 } | |
| 249 | |
| 250 </script> | |
| 251 </body> | |
| 252 </html> | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 1239993005:
Revert of Expose scroll customization for touch to JS (behind REF). (Closed)
Base URL: https://chromium.googlesource.com/chromium/blink.git@master