Web Animations: Add an event delegate to allow different forms of event dispatch

Source/core/animation/TimedItemTest.cpp

 /*
  * Copyright (c) 2013, Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 19 matching lines @@
 
 #include "config.h"
 #include "core/animation/TimedItem.h"
 
 #include <gtest/gtest.h>
 
 using namespace WebCore;
 
 namespace {
 
+class TestTimedItemEventDelegate : public TimedItemEventDelegate {
+public:
+    void onEventCondition(bool wasInPlay, bool isInPlay, double previousIteration, double currentIteration) OVERRIDE
+    {
+        m_eventTriggered = true;
+        m_playStateChanged = wasInPlay != isInPlay;
+        m_iterationChanged = isInPlay && previousIteration != currentIteration;
+        if (isInPlay)
+            ASSERT(!isNull(currentIteration));
+
+    }
+    void reset()
+    {
+        m_eventTriggered = false;
+        m_playStateChanged = false;
+        m_iterationChanged = false;
+    }
+    bool eventTriggered() { return m_eventTriggered; }
+    bool playStateChanged() { return m_playStateChanged; }
+    bool iterationChanged() { return m_iterationChanged; }
+
+private:
+    bool m_eventTriggered;
+    bool m_playStateChanged;
+    bool m_iterationChanged;
+};
+
 class TestTimedItem : public TimedItem {
 public:
     static PassRefPtr<TestTimedItem> create(const Timing& specified)
     {
-        return adoptRef(new TestTimedItem(specified));
+        return adoptRef(new TestTimedItem(specified, new TestTimedItemEventDelegate()));
     }
 
     void updateInheritedTime(double time)
     {
+        m_eventDelegate->reset();
         TimedItem::updateInheritedTime(time);
     }
 
     void updateChildrenAndEffects(bool wasActiveOrInEffect) const FINAL OVERRIDE {
     }
 
     void willDetach() { }
 
+    TestTimedItemEventDelegate* eventDelegate() { return m_eventDelegate; }
+
 private:
-    TestTimedItem(const Timing& specified)
-        : TimedItem(specified)
+    TestTimedItem(const Timing& specified, TestTimedItemEventDelegate* eventDelegate)
+        : TimedItem(specified, adoptPtr(eventDelegate))
+        , m_eventDelegate(eventDelegate)
     {
     }
+
+    TestTimedItemEventDelegate* m_eventDelegate;
 };
 
 TEST(TimedItem, Sanity)
 {
     Timing timing;
     timing.hasIterationDuration = true;
     timing.iterationDuration = 2;
     RefPtr<TestTimedItem> timedItem = TestTimedItem::create(timing);
 
     ASSERT_FALSE(timedItem->isCurrent());
@@ skipping 427 matching lines @@
     ASSERT_TRUE(isNull(timedItem->timeFraction()));
 
     timedItem->updateInheritedTime(0);
     ASSERT_EQ(1, timedItem->currentIteration());
     ASSERT_EQ(1, timedItem->timeFraction());
 
     timedItem->updateInheritedTime(1);
     ASSERT_EQ(1, timedItem->currentIteration());
     ASSERT_EQ(1, timedItem->timeFraction());
 }
+
+TEST(TimedItem, Events)
+{
+    Timing timing;
+    timing.hasIterationDuration = true;
+    timing.iterationDuration = 1;
+    timing.iterationCount = 2;
+    RefPtr<TestTimedItem> timedItem = TestTimedItem::create(timing);
+
+    timedItem->updateInheritedTime(0.3);
+    ASSERT_TRUE(timedItem->eventDelegate()->eventTriggered());
+    EXPECT_TRUE(timedItem->eventDelegate()->playStateChanged());
+    EXPECT_TRUE(timedItem->eventDelegate()->iterationChanged());
+
+    timedItem->updateInheritedTime(0.6);
+    ASSERT_FALSE(timedItem->eventDelegate()->eventTriggered());
+
+    timedItem->updateInheritedTime(1.5);
+    ASSERT_TRUE(timedItem->eventDelegate()->eventTriggered());
+    EXPECT_TRUE(timedItem->eventDelegate()->iterationChanged());
+    EXPECT_FALSE(timedItem->eventDelegate()->playStateChanged());
+
+    timedItem->updateInheritedTime(2.5);
+    ASSERT_TRUE(timedItem->eventDelegate()->eventTriggered());
+    EXPECT_FALSE(timedItem->eventDelegate()->iterationChanged());
+    EXPECT_TRUE(timedItem->eventDelegate()->playStateChanged());
+
+    timedItem->updateInheritedTime(3);
+    ASSERT_FALSE(timedItem->eventDelegate()->eventTriggered());
+
+    timedItem->updateInheritedTime(1.5);
+    ASSERT_TRUE(timedItem->eventDelegate()->eventTriggered());
+    EXPECT_FALSE(timedItem->eventDelegate()->iterationChanged());
+    EXPECT_TRUE(timedItem->eventDelegate()->playStateChanged());
 }
+}