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| 1 <!DOCTYPE html> |
| 2 <script src="../resources/js-test.js"></script> |
| 3 <script src="helper-functions.js"></script> |
| 4 <div style="width:100%; height:700px;"></div> |
| 5 <div id="target" style="background-color: green; width:100px; height:100px"></di
v> |
| 6 <div style="width:100%; height:700px;"></div> |
| 7 |
| 8 <script> |
| 9 description("Intersection observer test with multiple thresholds."); |
| 10 var target = document.getElementById("target"); |
| 11 var entries = []; |
| 12 |
| 13 observer_callback = function(changes) { |
| 14 for (var i in changes) |
| 15 entries.push(changes[i]); |
| 16 }; |
| 17 var observer = new IntersectionObserver(observer_callback, { |
| 18 threshold: [0, 0.25, 0.5, 0.75] |
| 19 }); |
| 20 observer.observe(target); |
| 21 |
| 22 // TODO(szager): It shouldn't be necessary to RAF after the call to observer() |
| 23 // and before changing the scroll position, but it is. |
| 24 |
| 25 function step0() { |
| 26 setTimeout(function() { |
| 27 shouldBeEqualToNumber("entries.length", 0); |
| 28 document.scrollingElement.scrollTop = 120; |
| 29 requestAnimationFrame(step1); |
| 30 }); |
| 31 } |
| 32 |
| 33 function step1() { |
| 34 setTimeout(function() { |
| 35 shouldBeEqualToNumber("entries.length", 1); |
| 36 shouldBeEqualToNumber("entries[0].boundingClientRect.left", 8); |
| 37 shouldBeEqualToNumber("entries[0].boundingClientRect.right", 108); |
| 38 shouldBeEqualToNumber("entries[0].boundingClientRect.top", 588); |
| 39 shouldBeEqualToNumber("entries[0].boundingClientRect.bottom", 688); |
| 40 shouldBeEqualToNumber("entries[0].intersectionRect.left", 8); |
| 41 shouldBeEqualToNumber("entries[0].intersectionRect.right", 108); |
| 42 shouldBeEqualToNumber("entries[0].intersectionRect.top", 588); |
| 43 shouldBeEqualToNumber("entries[0].intersectionRect.bottom", 600); |
| 44 shouldBeEqualToNumber("entries[0].rootBounds.left", 0); |
| 45 shouldBeEqualToNumber("entries[0].rootBounds.right", 785); |
| 46 shouldBeEqualToNumber("entries[0].rootBounds.top", 0); |
| 47 shouldBeEqualToNumber("entries[0].rootBounds.bottom", 600); |
| 48 shouldEvaluateToSameObject("entries[0].target", target); |
| 49 document.scrollingElement.scrollTop = 160; |
| 50 requestAnimationFrame(step2); |
| 51 }); |
| 52 } |
| 53 |
| 54 function step2() { |
| 55 setTimeout(function() { |
| 56 shouldBeEqualToNumber("entries.length", 2); |
| 57 shouldBeEqualToNumber("entries[1].boundingClientRect.left", 8); |
| 58 shouldBeEqualToNumber("entries[1].boundingClientRect.right", 108); |
| 59 shouldBeEqualToNumber("entries[1].boundingClientRect.top", 548); |
| 60 shouldBeEqualToNumber("entries[1].boundingClientRect.bottom", 648); |
| 61 shouldBeEqualToNumber("entries[1].intersectionRect.left", 8); |
| 62 shouldBeEqualToNumber("entries[1].intersectionRect.right", 108); |
| 63 shouldBeEqualToNumber("entries[1].intersectionRect.top", 548); |
| 64 shouldBeEqualToNumber("entries[1].intersectionRect.bottom", 600); |
| 65 shouldBeEqualToNumber("entries[1].rootBounds.left", 0); |
| 66 shouldBeEqualToNumber("entries[1].rootBounds.right", 785); |
| 67 shouldBeEqualToNumber("entries[1].rootBounds.top", 0); |
| 68 shouldBeEqualToNumber("entries[1].rootBounds.bottom", 600); |
| 69 shouldEvaluateToSameObject("entries[1].target", target); |
| 70 document.scrollingElement.scrollTop = 200; |
| 71 requestAnimationFrame(step3); |
| 72 }); |
| 73 } |
| 74 |
| 75 function step3() { |
| 76 setTimeout(function() { |
| 77 shouldBeEqualToNumber("entries.length", 3); |
| 78 shouldBeEqualToNumber("entries[2].boundingClientRect.left", 8); |
| 79 shouldBeEqualToNumber("entries[2].boundingClientRect.right", 108); |
| 80 shouldBeEqualToNumber("entries[2].boundingClientRect.top", 508); |
| 81 shouldBeEqualToNumber("entries[2].boundingClientRect.bottom", 608); |
| 82 shouldBeEqualToNumber("entries[2].intersectionRect.left", 8); |
| 83 shouldBeEqualToNumber("entries[2].intersectionRect.right", 108); |
| 84 shouldBeEqualToNumber("entries[2].intersectionRect.top", 508); |
| 85 shouldBeEqualToNumber("entries[2].intersectionRect.bottom", 600); |
| 86 shouldBeEqualToNumber("entries[2].rootBounds.left", 0); |
| 87 shouldBeEqualToNumber("entries[2].rootBounds.right", 785); |
| 88 shouldBeEqualToNumber("entries[2].rootBounds.top", 0); |
| 89 shouldBeEqualToNumber("entries[2].rootBounds.bottom", 600); |
| 90 shouldEvaluateToSameObject("entries[2].target", target); |
| 91 document.scrollingElement.scrollTop = 240; |
| 92 requestAnimationFrame(step4); |
| 93 }); |
| 94 } |
| 95 |
| 96 function step4() { |
| 97 setTimeout(function() { |
| 98 shouldBeEqualToNumber("entries.length", 3); |
| 99 document.scrollingElement.scrollTop = 740; |
| 100 requestAnimationFrame(step5); |
| 101 }); |
| 102 } |
| 103 |
| 104 function step5() { |
| 105 setTimeout(function() { |
| 106 shouldBeEqualToNumber("entries.length", 4); |
| 107 shouldBeEqualToNumber("entries[3].boundingClientRect.left", 8); |
| 108 shouldBeEqualToNumber("entries[3].boundingClientRect.right", 108); |
| 109 shouldBeEqualToNumber("entries[3].boundingClientRect.top", -32); |
| 110 shouldBeEqualToNumber("entries[3].boundingClientRect.bottom", 68); |
| 111 shouldBeEqualToNumber("entries[3].intersectionRect.left", 8); |
| 112 shouldBeEqualToNumber("entries[3].intersectionRect.right", 108); |
| 113 shouldBeEqualToNumber("entries[3].intersectionRect.top", 0); |
| 114 shouldBeEqualToNumber("entries[3].intersectionRect.bottom", 68); |
| 115 shouldBeEqualToNumber("entries[3].rootBounds.left", 0); |
| 116 shouldBeEqualToNumber("entries[3].rootBounds.right", 785); |
| 117 shouldBeEqualToNumber("entries[3].rootBounds.top", 0); |
| 118 shouldBeEqualToNumber("entries[3].rootBounds.bottom", 600); |
| 119 shouldEvaluateToSameObject("entries[3].target", target); |
| 120 document.scrollingElement.scrollTop = 760; |
| 121 requestAnimationFrame(step6); |
| 122 }); |
| 123 } |
| 124 |
| 125 function step6() { |
| 126 setTimeout(function() { |
| 127 shouldBeEqualToNumber("entries.length", 5); |
| 128 shouldBeEqualToNumber("entries[4].boundingClientRect.left", 8); |
| 129 shouldBeEqualToNumber("entries[4].boundingClientRect.right", 108); |
| 130 shouldBeEqualToNumber("entries[4].boundingClientRect.top", -52); |
| 131 shouldBeEqualToNumber("entries[4].boundingClientRect.bottom", 48); |
| 132 shouldBeEqualToNumber("entries[4].intersectionRect.left", 8); |
| 133 shouldBeEqualToNumber("entries[4].intersectionRect.right", 108); |
| 134 shouldBeEqualToNumber("entries[4].intersectionRect.top", 0); |
| 135 shouldBeEqualToNumber("entries[4].intersectionRect.bottom", 48); |
| 136 shouldBeEqualToNumber("entries[4].rootBounds.left", 0); |
| 137 shouldBeEqualToNumber("entries[4].rootBounds.right", 785); |
| 138 shouldBeEqualToNumber("entries[4].rootBounds.top", 0); |
| 139 shouldBeEqualToNumber("entries[4].rootBounds.bottom", 600); |
| 140 shouldEvaluateToSameObject("entries[4].target", target); |
| 141 document.scrollingElement.scrollTop = 800; |
| 142 requestAnimationFrame(step7); |
| 143 }); |
| 144 } |
| 145 |
| 146 function step7() { |
| 147 setTimeout(function() { |
| 148 shouldBeEqualToNumber("entries.length", 6); |
| 149 shouldBeEqualToNumber("entries[5].boundingClientRect.left", 8); |
| 150 shouldBeEqualToNumber("entries[5].boundingClientRect.right", 108); |
| 151 shouldBeEqualToNumber("entries[5].boundingClientRect.top", -92); |
| 152 shouldBeEqualToNumber("entries[5].boundingClientRect.bottom", 8); |
| 153 shouldBeEqualToNumber("entries[5].intersectionRect.left", 8); |
| 154 shouldBeEqualToNumber("entries[5].intersectionRect.right", 108); |
| 155 shouldBeEqualToNumber("entries[5].intersectionRect.top", 0); |
| 156 shouldBeEqualToNumber("entries[5].intersectionRect.bottom", 8); |
| 157 shouldBeEqualToNumber("entries[5].rootBounds.left", 0); |
| 158 shouldBeEqualToNumber("entries[5].rootBounds.right", 785); |
| 159 shouldBeEqualToNumber("entries[5].rootBounds.top", 0); |
| 160 shouldBeEqualToNumber("entries[5].rootBounds.bottom", 600); |
| 161 shouldEvaluateToSameObject("entries[5].target", target); |
| 162 document.scrollingElement.scrollTop = 820; |
| 163 requestAnimationFrame(step8); |
| 164 }); |
| 165 } |
| 166 |
| 167 function step8() { |
| 168 setTimeout(function() { |
| 169 shouldBeEqualToNumber("entries.length", 7); |
| 170 shouldBeEqualToNumber("entries[6].boundingClientRect.left", 8); |
| 171 shouldBeEqualToNumber("entries[6].boundingClientRect.right", 108); |
| 172 shouldBeEqualToNumber("entries[6].boundingClientRect.top", -112); |
| 173 shouldBeEqualToNumber("entries[6].boundingClientRect.bottom", -12); |
| 174 shouldBeEqualToNumber("entries[6].intersectionRect.left", 0); |
| 175 shouldBeEqualToNumber("entries[6].intersectionRect.right", 0); |
| 176 shouldBeEqualToNumber("entries[6].intersectionRect.top", 0); |
| 177 shouldBeEqualToNumber("entries[6].intersectionRect.bottom", 0); |
| 178 shouldBeEqualToNumber("entries[6].rootBounds.left", 0); |
| 179 shouldBeEqualToNumber("entries[6].rootBounds.right", 785); |
| 180 shouldBeEqualToNumber("entries[6].rootBounds.top", 0); |
| 181 shouldBeEqualToNumber("entries[6].rootBounds.bottom", 600); |
| 182 shouldEvaluateToSameObject("entries[6].target", target); |
| 183 finishTest(); |
| 184 document.scrollingElement.scrollTop = 0; |
| 185 }); |
| 186 } |
| 187 requestAnimationFrame(step0); |
| 188 </script> |
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