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55 lines
2.4 KiB
HTML
55 lines
2.4 KiB
HTML
<!doctype html>
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<title>Event.defaultPrevented</title>
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<div id="log"></div>
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<script>
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var ev;
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test(function() {
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ev = document.createEvent("Event");
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assert_equals(ev.defaultPrevented, false, "defaultPrevented");
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}, "When an event is created, defaultPrevented should be initialized to false.");
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test(function() {
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ev.initEvent("foo", true, false);
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assert_equals(ev.bubbles, true, "bubbles");
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assert_equals(ev.cancelable, false, "cancelable");
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assert_equals(ev.defaultPrevented, false, "defaultPrevented");
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}, "initEvent should work correctly (not cancelable).");
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test(function() {
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assert_equals(ev.cancelable, false, "cancelable (before)");
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ev.preventDefault();
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assert_equals(ev.cancelable, false, "cancelable (after)");
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assert_equals(ev.defaultPrevented, false, "defaultPrevented");
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}, "preventDefault() should not change defaultPrevented if cancelable is false.");
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test(function() {
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assert_equals(ev.cancelable, false, "cancelable (before)");
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ev.returnValue = false;
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assert_equals(ev.cancelable, false, "cancelable (after)");
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assert_equals(ev.defaultPrevented, false, "defaultPrevented");
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}, "returnValue should not change defaultPrevented if cancelable is false.");
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test(function() {
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ev.initEvent("foo", true, true);
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assert_equals(ev.bubbles, true, "bubbles");
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assert_equals(ev.cancelable, true, "cancelable");
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assert_equals(ev.defaultPrevented, false, "defaultPrevented");
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}, "initEvent should work correctly (cancelable).");
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test(function() {
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assert_equals(ev.cancelable, true, "cancelable (before)");
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ev.preventDefault();
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assert_equals(ev.cancelable, true, "cancelable (after)");
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assert_equals(ev.defaultPrevented, true, "defaultPrevented");
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}, "preventDefault() should change defaultPrevented if cancelable is true.");
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test(function() {
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ev.initEvent("foo", true, true);
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assert_equals(ev.cancelable, true, "cancelable (before)");
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ev.returnValue = false;
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assert_equals(ev.cancelable, true, "cancelable (after)");
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assert_equals(ev.defaultPrevented, true, "defaultPrevented");
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}, "returnValue should change defaultPrevented if cancelable is true.");
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test(function() {
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ev.initEvent("foo", true, true);
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assert_equals(ev.bubbles, true, "bubbles");
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assert_equals(ev.cancelable, true, "cancelable");
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assert_equals(ev.defaultPrevented, false, "defaultPrevented");
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}, "initEvent should unset defaultPrevented.");
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</script>
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