[SVG2] Add onbegin, onend and onrepeat EventHandlers on SVGAnimationElement

These map to the eventnames 'beginEvent', 'endEvent' and 'repeatEvent'
respectively.

Spec:
https://svgwg.org/svg2-draft/animate.html#InterfaceSVGAnimationElement

BUG=338288
NOTRY=true

Review URL: https://codereview.chromium.org/201673003

git-svn-id: svn://svn.chromium.org/blink/trunk@169871 bbb929c8-8fbe-4397-9dbb-9b2b20218538

1 files changed, 73 insertions, 0 deletions

diff --git a/third_party/WebKit/LayoutTests/fast/svg/script-tests/animation-events.js b/third_party/WebKit/LayoutTests/fast/svg/script-tests/animation-events.js
new file mode 100644
index 0000000..35a859f
--- /dev/null
+++ b/third_party/WebKit/LayoutTests/fast/svg/script-tests/animation-events.js
@@ -0,0 +1,73 @@
+function getObject(interface) {
+    switch(interface) {
+        case "SVGAnimateElement":
+            var e = document.createElementNS("http://www.w3.org/2000/svg", "animate");
+            assert_true(e instanceof SVGAnimateElement);
+            return e;
+        case "SVGAnimateMotionElement":
+            var e = document.createElementNS("http://www.w3.org/2000/svg", "animateMotion");
+            assert_true(e instanceof SVGAnimateMotionElement);
+            return e;
+        case "SVGAnimateTransformElement":
+            var e = document.createElementNS("http://www.w3.org/2000/svg", "animateTransform");
+            assert_true(e instanceof SVGAnimateTransformElement);
+            return e;
+        case "SVGSetElement":
+            var e = document.createElementNS("http://www.w3.org/2000/svg", "set");
+            assert_true(e instanceof SVGSetElement);
+            return e;
+    }
+    assert_unreached();
+}
+function testSet(interface, attribute) {
+    test(function() {
+        var object = getObject(interface);
+        function nop() {}
+        assert_equals(object[attribute], null, "Initially null");
+        object[attribute] = nop;
+        assert_equals(object[attribute], nop, "Return same function");
+        object[attribute] = "";
+        assert_equals(object[attribute], null, "Return null after setting string");
+        object[attribute] = null;
+        assert_equals(object[attribute], null, "Finally null");
+    }, "Set " + interface + "." + attribute);
+}
+function testReflect(interface, attribute) {
+    test(function() {
+        var element = getObject(interface);
+        assert_false(element.hasAttribute(attribute), "Initially missing");
+        element.setAttribute(attribute, "return");
+        assert_equals(element.getAttribute(attribute), "return", "Return same string");
+        assert_equals(typeof element[attribute], "function", "Convert to function");
+        element.removeAttribute(attribute);
+    }, "Reflect " + interface + "." + attribute);
+}
+// Object.propertyIsEnumerable cannot be used because it doesn't
+// work with properties inherited through the prototype chain.
+function getEnumerable(interface) {
+    var enumerable = {};
+    for (var attribute in getObject(interface)) {
+        enumerable[attribute] = true;
+    }
+    return enumerable;
+}
+function testEventHandlerMapping(attribute, eventname) {
+    async_test(function(t) {
+        var element = getObject("SVGAnimateElement");
+        assert_false(element.hasAttribute(attribute), "Initially missing");
+        element[attribute] = function() {
+            t.step(function (){assert_true(true); t.done();});
+        };
+        var event = new CustomEvent(eventname);
+        element.dispatchEvent(event);
+    }, "Event " + eventname + " maps to " + attribute);
+}
+var enumerableCache = {};
+function testEnumerate(interface, attribute) {
+    if (!(interface in enumerableCache)) {
+        enumerableCache[interface] = getEnumerable(interface);
+    }
+    test(function() {
+        assert_true(enumerableCache[interface][attribute]);
+    }, "Enumerate " + interface + "." + attribute);
+}