third_party/WebKit/LayoutTests/accessibility/scroll-to-make-visible-nested-2.html

   1 <html>
   2 <head>
   3 <script src="../resources/js-test.js"></script>
   4 </head>
   5 <body>
   6
   7 <p id="description"></p>
   8
   9 <div id="container" style="width: 100px; overflow: scroll">
  10   <div style="border: 1px solid #000; width: 1000px; height: 5000px;">5000-pixel box</div>
  11   <button id="target1">Target</button>
  12   <button id="target2">Target</button>
  13   <button id="target3">Target</button>
  14   <div style="border: 1px solid #000; width: 1000px; height: 5000px;">5000-pixel box</div>
  15 </div>
  16
  17 <div id="console"></div>
  18
  19 <script>
  20 description("Tests that scrolling to make an element visible works when the inner scroll container doesn't need to be scrolled, but the other one does.");
  21
  22 function runTest() {
  23     window.container = document.getElementById("container");
  24     window.target1 = document.getElementById("target1");
  25     window.target2 = document.getElementById("target2");
  26     window.target3 = document.getElementById("target3");
  27
  28     if (window.accessibilityController) {
  29         target1.focus();
  30         var target1AccessibleObject = accessibilityController.focusedElement;
  31         target2.focus();
  32         var target2AccessibleObject = accessibilityController.focusedElement;
  33         target3.focus();
  34         var target3AccessibleObject = accessibilityController.focusedElement;
  35     }
  36
  37     // Reset the initial scroll positions (since calling focus() can scroll the page too).
  38     window.scrollTo(0, 0);
  39     container.scrollTop = 0;
  40     shouldBe("window.pageYOffset", "0");
  41     shouldBe("container.scrollTop", "0");
  42     shouldBeGreaterThanOrEqual("target1.getBoundingClientRect().top", "5000");
  43
  44     // Scroll to make the middle target visible.
  45     if (window.accessibilityController)
  46         target2AccessibleObject.scrollToMakeVisible();
  47
  48     // Instead of testing the exact scroll offsets of the two containers, just test that
  49     // the new absolute position of the target is on-screen.
  50     shouldBeGreaterThanOrEqual("window.innerHeight", "target2.getBoundingClientRect().bottom");
  51
  52     // Make sure that calling scrollToMakeVisible on target1 and target3 don't result in any
  53     // scrolling, because they should already be within the viewport.
  54     window.target2top = target2.getBoundingClientRect().top;
  55     if (window.accessibilityController)
  56         target1AccessibleObject.scrollToMakeVisible();
  57     shouldBe("target2top", "target2.getBoundingClientRect().top");
  58     if (window.accessibilityController)
  59         target3AccessibleObject.scrollToMakeVisible();
  60     shouldBe("target2top", "target2.getBoundingClientRect().top");
  61
  62     finishJSTest();
  63 }
  64
  65 runTest();
  66
  67 </script>
  68
  69 </body>
  70 </html>