LayoutTests/accessibility/scroll-to-make-visible-iframe-offscreen.html - WebKit - Git at Google

 <!DOCTYPE html>
 <head>
 <script src="../resources/js-test.js"></script>
 </head>
 <body>

 <p id="description"></p>

 <div style='border: 1px solid #000; height: 5000px;'>5000-pixel box</div>

 <iframe id="frame" src="data:text/html,<body><button id='upper_target'>Upper Target</button><div style='border: 1px solid #000; height: 5000px;'>5000-pixel box</div><button id='lower_target'>Lower Target</button></body>"></iframe>

 <br>
 <iframe id="frame2" src="./resources/iframe.html"></iframe>

 <div id="console"></div>

 <script>
 description("This tests that scrolling to make an element visible works properly when there's an iframe off screen.");

 window.jsTestIsAsync = true;

 function runTest() {

     window.frame = document.getElementById("frame");
     window.frameWindow = frame.contentWindow;

     var upperTarget = frameWindow.document.getElementById("upper_target");
     var lowerTarget = frameWindow.document.getElementById("lower_target");

     var lowerTargetAccessibleObject;
     var upperTargetAccessibleObject;
     if (frameWindow.accessibilityController) {
         lowerTargetAccessibleObject = frameWindow.accessibilityController.accessibleElementById("lower_target");
         upperTargetAccessibleObject = frameWindow.accessibilityController.accessibleElementById("upper_target");
     }

     // Initial state
     debug("Test scrolling an offscreen iframe.");
     window.scrollTo(0, 0);
     shouldBeZero("window.pageYOffset");

     // Scroll to make lower target visible and check.
     debug("\nScroll lower target to visible.");
     if (frameWindow.accessibilityController)
         lowerTargetAccessibleObject.scrollToMakeVisible();
     // The iframe should be scrolled into view.
     debug("The iframe should be scrolled into view");
     window.scrolledYOffset = window.pageYOffset;
     shouldBeTrue("scrolledYOffset > 0");
     // The content inside the iframe should be scrolled into view too
     testScrolledIntoView(lowerTarget, frameWindow, "Test the lower target should be scrolled into view.")

     // Scroll to make upper target visible and check.
     debug("\nScroll upper target to visible.");
     if (frameWindow.accessibilityController)
         upperTargetAccessibleObject.scrollToMakeVisible();
     // The iframe should be visible already
     debug("The main window shouldn't scroll.");
     shouldBeTrue("window.pageYOffset == scrolledYOffset");
     // The content inside the iframe should be scrolled into view too
     testScrolledIntoView(upperTarget, frameWindow, "Test the upper target should be scrolled into view.")

     // Reset and test iframe inside iframe
     debug("\nReset scrolling. Test scrolling in nested iframes.");
     window.scrollTo(0, 0);
     shouldBeZero("window.pageYOffset");

     window.innerFrame = document.getElementById("frame2").contentWindow.document.getElementById("iframe");
     window.innerFrameWindow = innerFrame.contentWindow;
     var button = innerFrameWindow.document.getElementById("button");
     var buttonAccessibleObject;
     debug("\nScroll inner button to visible.");
     if (innerFrameWindow.accessibilityController) {
         buttonAccessibleObject = innerFrameWindow.accessibilityController.accessibleElementById("button");
         buttonAccessibleObject.scrollToMakeVisible();
     }
     // The content inside the inner iframe should be scrolled into view too
     testScrolledIntoView(button, innerFrameWindow, "Test the button inside the inner frame should be scrolled into view");
     // Use outter frame to determine the inner frame is scrolled into view.
     window.outterFrame = document.getElementById("frame2");
     window.outterFrameWindow = outterFrame.contentWindow;
     debug("The inner iframe should be scrolled into view");
     shouldBeTrue("outterFrameWindow.pageYOffset > 0");

     // Now make sure we can scroll back to the outter text above the inner iframe
     var text = outterFrameWindow.document.getElementById("box").firstChild;
     var textAccessibleObject;
     debug("\nScroll outter text element to visible.");
     if (outterFrameWindow.accessibilityController) {
         textAccessibleObject = outterFrameWindow.accessibilityController.accessibleElementById("box").childAtIndex(0);
         textAccessibleObject.scrollToMakeVisible();
     }
     debug("The Y offset of the outter iframe should be reset.")
     shouldBeZero("outterFrameWindow.pageYOffset");

     finishJSTest();
 }

 function testScrolledIntoView(object, testWindow, description) {
     debug(description);
     window.frameMinYOffset = object.offsetTop + object.offsetHeight - testWindow.innerHeight;
     window.frameMaxYOffset = object.offsetTop;
     window.scrolledIntoView = testWindow.pageYOffset >= frameMinYOffset && testWindow.pageYOffset <= frameMaxYOffset;
     shouldBeTrue("scrolledIntoView");
 }

 window.addEventListener("load", function() {
     setTimeout(runTest, 0);
 }, false);

 </script>

 </body>
 </html>
	<!DOCTYPE html>
	<head>
	<script src="../resources/js-test.js"></script>
	</head>
	<body>

	<p id="description"></p>

	<div style='border: 1px solid #000; height: 5000px;'>5000-pixel box</div>

	<iframe id="frame" src="data:text/html,<body><button id='upper_target'>Upper Target</button><div style='border: 1px solid #000; height: 5000px;'>5000-pixel box</div><button id='lower_target'>Lower Target</button></body>"></iframe>

	<br>
	<iframe id="frame2" src="./resources/iframe.html"></iframe>

	<div id="console"></div>

	<script>
	description("This tests that scrolling to make an element visible works properly when there's an iframe off screen.");

	window.jsTestIsAsync = true;

	function runTest() {

	window.frame = document.getElementById("frame");
	window.frameWindow = frame.contentWindow;

	var upperTarget = frameWindow.document.getElementById("upper_target");
	var lowerTarget = frameWindow.document.getElementById("lower_target");

	var lowerTargetAccessibleObject;
	var upperTargetAccessibleObject;
	if (frameWindow.accessibilityController) {
	lowerTargetAccessibleObject = frameWindow.accessibilityController.accessibleElementById("lower_target");
	upperTargetAccessibleObject = frameWindow.accessibilityController.accessibleElementById("upper_target");
	}

	// Initial state
	debug("Test scrolling an offscreen iframe.");
	window.scrollTo(0, 0);
	shouldBeZero("window.pageYOffset");

	// Scroll to make lower target visible and check.
	debug("\nScroll lower target to visible.");
	if (frameWindow.accessibilityController)
	lowerTargetAccessibleObject.scrollToMakeVisible();
	// The iframe should be scrolled into view.
	debug("The iframe should be scrolled into view");
	window.scrolledYOffset = window.pageYOffset;
	shouldBeTrue("scrolledYOffset > 0");
	// The content inside the iframe should be scrolled into view too
	testScrolledIntoView(lowerTarget, frameWindow, "Test the lower target should be scrolled into view.")

	// Scroll to make upper target visible and check.
	debug("\nScroll upper target to visible.");
	if (frameWindow.accessibilityController)
	upperTargetAccessibleObject.scrollToMakeVisible();
	// The iframe should be visible already
	debug("The main window shouldn't scroll.");
	shouldBeTrue("window.pageYOffset == scrolledYOffset");
	// The content inside the iframe should be scrolled into view too
	testScrolledIntoView(upperTarget, frameWindow, "Test the upper target should be scrolled into view.")

	// Reset and test iframe inside iframe
	debug("\nReset scrolling. Test scrolling in nested iframes.");
	window.scrollTo(0, 0);
	shouldBeZero("window.pageYOffset");

	window.innerFrame = document.getElementById("frame2").contentWindow.document.getElementById("iframe");
	window.innerFrameWindow = innerFrame.contentWindow;
	var button = innerFrameWindow.document.getElementById("button");
	var buttonAccessibleObject;
	debug("\nScroll inner button to visible.");
	if (innerFrameWindow.accessibilityController) {
	buttonAccessibleObject = innerFrameWindow.accessibilityController.accessibleElementById("button");
	buttonAccessibleObject.scrollToMakeVisible();
	}
	// The content inside the inner iframe should be scrolled into view too
	testScrolledIntoView(button, innerFrameWindow, "Test the button inside the inner frame should be scrolled into view");
	// Use outter frame to determine the inner frame is scrolled into view.
	window.outterFrame = document.getElementById("frame2");
	window.outterFrameWindow = outterFrame.contentWindow;
	debug("The inner iframe should be scrolled into view");
	shouldBeTrue("outterFrameWindow.pageYOffset > 0");

	// Now make sure we can scroll back to the outter text above the inner iframe
	var text = outterFrameWindow.document.getElementById("box").firstChild;
	var textAccessibleObject;
	debug("\nScroll outter text element to visible.");
	if (outterFrameWindow.accessibilityController) {
	textAccessibleObject = outterFrameWindow.accessibilityController.accessibleElementById("box").childAtIndex(0);
	textAccessibleObject.scrollToMakeVisible();
	}
	debug("The Y offset of the outter iframe should be reset.")
	shouldBeZero("outterFrameWindow.pageYOffset");

	finishJSTest();
	}

	function testScrolledIntoView(object, testWindow, description) {
	debug(description);
	window.frameMinYOffset = object.offsetTop + object.offsetHeight - testWindow.innerHeight;
	window.frameMaxYOffset = object.offsetTop;
	window.scrolledIntoView = testWindow.pageYOffset >= frameMinYOffset && testWindow.pageYOffset <= frameMaxYOffset;
	shouldBeTrue("scrolledIntoView");
	}

	window.addEventListener("load", function() {
	setTimeout(runTest, 0);
	}, false);

	</script>

	</body>
	</html>