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157 lines
5 KiB
HTML
157 lines
5 KiB
HTML
<!doctype html>
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<style>
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.outer {
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height: 400px;
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width: 1000px;
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background: white
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}
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.content {
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height: 600px;
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width: 1200px;
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}
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#root {
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overflow: scroll;
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height: 600px;
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width: 800px;
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background: white;
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}
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#container {
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overflow: scroll;
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}
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#non_scrollable {
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overflow: none;
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}
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#green {
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background: repeating-linear-gradient(to bottom right, green 15%, white 30%);
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}
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#blue {
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background: repeating-linear-gradient(to bottom right, blue 15%, white 30%);
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}
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</style>
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<div id='root'>
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<div id='non_scrollable' class='outer'>
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<div id='green' class='content'></div>
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</div>
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<div id='container' class='outer'>
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<div id='blue' class='content'></div>
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</div>
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</div>
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<input type="button" id="btnDone" value="DONE" style="width: 100px; height: 50px;"/>
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<h1>overscroll-behavior</h1>
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<h4>Tests that overscroll-behavior prevents scroll-propagation in the area and direction as specified.</h4>
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<ol>
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<li id="i1">Make two scrolls on <span style="color: blue">BLUE</span>, in this order: scroll UP (or drag down), then scroll LEFT (or drag right). Scroll (or drag) until nothing is scrolling. Then tap on DONE.</li>
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<li id="i2">Repeat the same scrolls as in step 1 and then tap on DONE.</li>
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<li id="i3">Repeat the same scrolls as in step 1 and then tap on DONE.</li>
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<li id="i4">Make two separate scrolls on <span style="color: green">GREEN</span>, in this order: scroll UP (or drag down), then scroll LEFT (or drag right). Scroll (or drag) until nothing is scrolling. Then tap on DONE.</li>
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</ol>
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<script>
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setup({explicit_timeout: true});
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const container = document.getElementById('container');
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const non_scrollable = document.getElementById('non_scrollable');
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const root = document.getElementById('root');
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var test = async_test("overscroll-behavior prevents scroll-propagation in the area and direction as specified");
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var instruction1 = document.getElementById("i1");
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var instruction2 = document.getElementById("i2");
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var instruction3 = document.getElementById("i3");
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var instruction4 = document.getElementById("i4");
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function setUpForRoot(offset) {
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root.scrollTop = offset;
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root.scrollLeft = offset;
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}
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function setUpForContainer(offset) {
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container.scrollTop = offset;
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container.scrollLeft = offset
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}
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function set_boundary_prevents_y() {
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instruction1.style.color = 'red';
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instruction1.style.fontWeight = 'bold';
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container.style.overscrollBehaviorX = 'auto';
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container.style.overscrollBehaviorY = 'none';
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setUpForRoot(100);
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setUpForContainer(0);
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window.scrollTo(0, 0);
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}
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function verify_y_prevented_and_set_boundary_prevents_x() {
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instruction1.style.fontWeight = 'normal';
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instruction2.style.fontWeight = 'bold';
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test.step(function() {
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assert_equals(root.scrollTop, 100);
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assert_equals(root.scrollLeft, 0);
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window.scrollTo(0, 0);
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}, "overscroll-behavior-y: none should only prevent scroll propagation on y axis.");
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container.style.overscrollBehaviorX = 'none';
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container.style.overscrollBehaviorY = 'auto';
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setUpForRoot(100);
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setUpForContainer(0);
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window.scrollTo(0, 0);
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}
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function verify_x_prevented_and_set_boundary_allows_inner() {
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instruction2.style.fontWeight = 'normal';
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instruction3.style.fontWeight = 'bold';
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test.step(function() {
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assert_equals(root.scrollTop, 0);
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assert_equals(root.scrollLeft, 100);
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}, "overscroll-behavior-x: none should only prevent scroll propagation on x axis.");
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container.style.overscrollBehaviorX = 'none';
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container.style.overscrollBehaviorY = 'none';
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setUpForRoot(100);
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setUpForContainer(100);
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window.scrollTo(0, 0);
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}
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function verify_inner_allowed_and_set_nonscrollable_allows_propagation() {
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instruction1.style.color = 'black';
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instruction4.style.color = 'red';
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instruction3.style.fontWeight = 'normal';
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instruction4.style.fontWeight = 'bold';
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test.step(function() {
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assert_equals(container.scrollTop, 0);
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assert_equals(container.scrollLeft, 0);
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assert_equals(root.scrollTop, 100);
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assert_equals(root.scrollLeft, 100);
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}, "overscroll-behavior should latch the scroll to the inner container.");
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non_scrollable.style.overscrollBehaviorX = 'none';
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non_scrollable.style.overscrollBehaviorY = 'none';
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setUpForRoot(100);
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window.scrollTo(0, 0);
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}
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function verify_non_scrollable_allows_propagation() {
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test.step(function() {
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assert_equals(root.scrollLeft, 0);
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assert_equals(root.scrollTop, 0);
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}, "overscroll-behavior on non-scrollable area should not affect scroll propagation.");
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test.done();
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}
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var verifyAndSetupForNext = [
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set_boundary_prevents_y,
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verify_y_prevented_and_set_boundary_prevents_x,
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verify_x_prevented_and_set_boundary_allows_inner,
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verify_inner_allowed_and_set_nonscrollable_allows_propagation,
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verify_non_scrollable_allows_propagation];
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on_event(document.getElementById("btnDone"), "click", function() {
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if (current_test < verifyAndSetupForNext.length)
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verifyAndSetupForNext[current_test++]();
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});
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var current_test = 0;
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verifyAndSetupForNext[current_test++]();
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</script>
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