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| 1 <!DOCTYPE html> |
| 2 <link href="resources/dialog-layout.css" rel="stylesheet"> |
| 3 <style> |
| 4 dialog { |
| 5 position: fixed; |
| 6 } |
| 7 </style> |
| 8 <script src="../../../resources/js-test.js"></script> |
| 9 <dialog id="dialog">It is my dialog.</dialog> |
| 10 <div id="absolute-div"> |
| 11 <div id="relative-div"></div> |
| 12 </div> |
| 13 <script> |
| 14 description('Tests layout of fixed positioned dialogs.'); |
| 15 |
| 16 function checkCentered(dialog) { |
| 17 centeredTop = (window.innerHeight - dialog.offsetHeight) / 2; |
| 18 shouldBe('dialog.getBoundingClientRect().top', 'centeredTop'); |
| 19 } |
| 20 |
| 21 function reset() { |
| 22 if (dialog.open) |
| 23 dialog.close(); |
| 24 dialog.remove(); |
| 25 document.body.appendChild(dialog); |
| 26 window.scroll(0, 500); |
| 27 } |
| 28 |
| 29 dialog = document.querySelector('#dialog'); |
| 30 absoluteContainer = document.querySelector('#absolute-div'); |
| 31 relativeContainer = document.querySelector('#relative-div'); |
| 32 reset(); |
| 33 |
| 34 (function() { |
| 35 debug('<br>showModal() should center in the viewport.'); |
| 36 |
| 37 dialog.showModal(); |
| 38 checkCentered(dialog); |
| 39 reset(); |
| 40 }()); |
| 41 |
| 42 (function() { |
| 43 debug('<br>The computed top and bottom of a centered dialog should still hav
e position auto.'); |
| 44 |
| 45 dialog.showModal(); |
| 46 shouldBeEqualToString('window.getComputedStyle(dialog).top', 'auto'); |
| 47 shouldBeEqualToString('window.getComputedStyle(dialog).bottom', 'auto'); |
| 48 reset(); |
| 49 }()); |
| 50 |
| 51 (function() { |
| 52 debug('<br>The dialog shold stay centered on scroll.'), |
| 53 |
| 54 dialog.showModal(); |
| 55 window.scroll(0, 2 * window.scrollY); |
| 56 checkCentered(dialog); |
| 57 reset(); |
| 58 }()); |
| 59 |
| 60 (function() { |
| 61 debug('<br>A tall dialog should be positioned at the top of the viewport.'); |
| 62 |
| 63 dialog.style.height = '20000px'; |
| 64 dialog.showModal(); |
| 65 shouldBe('dialog.getBoundingClientRect().top', '0'); |
| 66 |
| 67 dialog.style.height = 'auto'; |
| 68 reset(); |
| 69 }()); |
| 70 |
| 71 (function() { |
| 72 debug('<br>The dialog should be centered regardless of the presence of a hor
izontal scrollbar.'); |
| 73 |
| 74 document.body.style.width = '4000px'; |
| 75 dialog.showModal(); |
| 76 checkCentered(dialog); |
| 77 |
| 78 document.body.style.width = 'auto'; |
| 79 reset(); |
| 80 }()); |
| 81 |
| 82 (function() { |
| 83 debug('<br>Centering should work when dialog is inside positioned containers
.'); |
| 84 |
| 85 dialog.remove(); |
| 86 absoluteContainer.appendChild(dialog); |
| 87 dialog.showModal(); |
| 88 checkCentered(dialog); |
| 89 dialog.close(); |
| 90 |
| 91 dialog.remove(); |
| 92 relativeContainer.appendChild(dialog); |
| 93 dialog.showModal(); |
| 94 checkCentered(dialog); |
| 95 |
| 96 reset(); |
| 97 }()); |
| 98 |
| 99 (function() { |
| 100 debug('<br>A centered dialog\'s position should survive becoming display:non
e temporarily.'); |
| 101 |
| 102 dialog.showModal(); |
| 103 expectedTop = dialog.getBoundingClientRect().top; |
| 104 relativeContainer.style.display = 'none'; |
| 105 relativeContainer.style.display = 'block'; |
| 106 shouldBe('dialog.getBoundingClientRect().top', 'expectedTop'); |
| 107 |
| 108 reset(); |
| 109 }()); |
| 110 |
| 111 (function() { |
| 112 debug('<br>Dialog should lose centering when removed from the document.'); |
| 113 |
| 114 dialog.showModal(); |
| 115 dialog.remove(); |
| 116 relativeContainer.appendChild(dialog); |
| 117 shouldBe('dialog.getBoundingClientRect().top', '0'); |
| 118 |
| 119 reset(); |
| 120 }()); |
| 121 |
| 122 (function() { |
| 123 debug('<br>Dialog\'s specified position should survive after close() and sho
wModal().'); |
| 124 |
| 125 dialog.showModal(); |
| 126 dialog.style.top = '0px'; |
| 127 expectedTop = dialog.getBoundingClientRect().top; |
| 128 dialog.close(); |
| 129 dialog.showModal(); |
| 130 shouldBe('dialog.getBoundingClientRect().top', 'expectedTop'); |
| 131 |
| 132 dialog.style.top = 'auto'; |
| 133 reset(); |
| 134 }()); |
| 135 |
| 136 (function() { |
| 137 debug('<br>Dialog should not be centered if showModal() was called when an a
ncestor had display \'none\'.'); |
| 138 |
| 139 dialog.remove(); |
| 140 absoluteContainer.appendChild(dialog); |
| 141 absoluteContainer.style.display = 'none'; |
| 142 dialog.showModal(); |
| 143 absoluteContainer.style.display = 'block'; |
| 144 shouldBe('dialog.getBoundingClientRect().top', '0'); |
| 145 |
| 146 reset(); |
| 147 }()); |
| 148 |
| 149 (function() { |
| 150 debug('<br>A dialog with specified \'top\' should be positioned as usual'); |
| 151 offset = 50; |
| 152 dialog.style.top = offset + 'px'; |
| 153 dialog.showModal(); |
| 154 shouldBe('dialog.getBoundingClientRect().top', 'offset'); |
| 155 |
| 156 reset(); |
| 157 }()); |
| 158 </script> |
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