151 lines
5.4 KiB
HTML
151 lines
5.4 KiB
HTML
<!doctype html>
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<html>
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<head>
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<title>Viewport: Offset</title>
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<meta charset="utf-8">
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<meta name="viewport" content="width=device-width, minimum-scale=1">
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script src="viewport_support.js"></script>
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<script>
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setup({explicit_done: true, explicit_timeout: true});
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</script>
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<style>
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html {
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width: 100%;
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height: 100%;
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}
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#fullscreenBox {
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position: fixed;
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left: 0;
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top: 0;
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width: 100%;
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height: 100%;
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visibility: hidden;
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}
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</style>
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</head>
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<body>
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<h1>Viewport: Offset</h1>
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<h4>
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Test Description: Tests the offset scrolling properties on an
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unscrollable page.
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</h4>
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<h2 style="color: red">THIS IS A MANUAL TEST</h2>
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<p id="skip">
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<button id="skipbtn" onclick="skipManualTest();">Skip Test</button>
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</p>
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<h4>Instruction</h4>
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<p id="instruction"></p>
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<button id="continue">Start Test</button>
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<div id="log"></div>
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<div id="fullscreenBox">
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<!-- Invisible but needed to get maximum scrollable extents in the
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presence of a collapsible URL bar. -->
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</div>
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</body>
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<script>
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var continueBtn = document.getElementById("continue");
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function continueTest() {
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nextStep(function(instructionText) {
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var instruction = document.getElementById("instruction");
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continueBtn.innerText = "Continue";
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instruction.innerText = instructionText;
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});
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}
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continueBtn.addEventListener('click', continueTest);
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// Prevent scrolling (though there should be no overflow) so that all
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// scrolling must happen as panning the visual viewport within the
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// layout viewport.
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document.documentElement.style.overflow = "hidden";
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addManualTestStep(
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function() {},
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null,
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'1. Ensure the browser is at the default pinch and browser zoom ' +
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'levels (100%). Most browsers: ctrl+0');
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var scale = 3.0;
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var xTarget = 2 * window.innerWidth / scale;
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var yTarget = 2 * window.innerHeight / scale;
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addManualTestStep(
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showPinchWidget.bind(null, scale, xTarget, yTarget, continueTest),
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null,
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'2.Follow instructions on pinch zoom dialog.');
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addManualTestStep(
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function() {
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var actualScale = window.visualViewport.scale;
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var actualOffsetLeft = window.visualViewport.offsetLeft;
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var actualOffsetTop = window.visualViewport.offsetTop;
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// This needs to happen before assertions in case they fail. A
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// failed assertion stops running this function.
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window.scrollTo(0, 0);
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// Ensure we zoomed in to about what we expect.
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assert_approx_equals(actualScale, scale, 0.2,
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"window.visualViewport.scale reflects pinch-zoom level");
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assert_approx_equals(actualOffsetLeft, xTarget, 5,
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"offsetLeft value is correct.");
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assert_approx_equals(actualOffsetTop, yTarget, 5,
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"offsetTop value is correct.");
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},
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'With ~300% pinch-zoom',
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'3. Pinch-zoom back out to the minimum scale');
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addManualTestStep(
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showPinchWidget.bind(null, 2, 0, 0, continueTest),
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null,
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'4.Follow instructions on pinch zoom dialog.');
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addManualTestStep(
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function() {
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document.documentElement.style.overflow = "";
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continueBtn.style.position = "absolute";
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continueBtn.style.left = "150%";
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continueBtn.style.top = "150%";
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assert_approx_equals(window.visualViewport.scale, 2, 0.2,
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"window.visualViewport.scale reflects pinch-zoom level");
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},
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'Tester pinch zoomed in correctly',
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'5. Scroll fully to the bottom right. Click the continue button ' +
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'there.');
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addManualTestStep(
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function() {
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var fullscreenBox = document.getElementById('fullscreenBox');
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var expectedLeft = fullscreenBox.clientWidth / 2;
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var expectedTop = fullscreenBox.clientHeight / 2;
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var viewOffsetLeft = window.visualViewport.offsetLeft;
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var viewOffsetTop = window.visualViewport.offsetTop;
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// This needs to happen before assertions in case they fail. A
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// failed assertion stops running this function.
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continueBtn.style.position = "";
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continueBtn.style.left = "";
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continueBtn.style.top = "";
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window.scrollTo(0, 0);
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assert_approx_equals(viewOffsetLeft, expectedLeft, 10,
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"OffsetLeft is correct");
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assert_approx_equals(viewOffsetTop, expectedTop, 10,
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"OffsetTop");
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},
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'OffsetLeft and OffsetTop correct when there\'s some layout ' +
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'viewport scrolling as well.',
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'6. Pinch-zoom out fully');
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addManualTestStep(
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function() {
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continueBtn.remove();
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},
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null,
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'Test Complete');
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</script>
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</html>
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