1 files changed, 126 insertions, 0 deletions
diff --git a/libs/hwui/AnimationContext.cpp b/libs/hwui/AnimationContext.cpp
new file mode 100644
index 0000000..ec44de3
--- /dev/null
+++ b/libs/hwui/AnimationContext.cpp
@@ -0,0 +1,126 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include "AnimationContext.h"
+
+#include "Animator.h"
+#include "RenderNode.h"
+#include "TreeInfo.h"
+#include "renderthread/TimeLord.h"
+
+namespace android {
+namespace uirenderer {
+
+AnimationContext::AnimationContext(renderthread::TimeLord& clock)
+        : mClock(clock)
+        , mCurrentFrameAnimations(*this)
+        , mNextFrameAnimations(*this)
+        , mFrameTimeMs(0) {
+}
+
+AnimationContext::~AnimationContext() {
+}
+
+void AnimationContext::addAnimatingRenderNode(RenderNode& node) {
+    if (!node.animators().hasAnimationHandle()) {
+        AnimationHandle* handle = new AnimationHandle(node, *this);
+        addAnimationHandle(handle);
+    }
+}
+
+void AnimationContext::addAnimationHandle(AnimationHandle* handle) {
+    handle->insertAfter(&mNextFrameAnimations);
+}
+
+void AnimationContext::startFrame() {
+    LOG_ALWAYS_FATAL_IF(mCurrentFrameAnimations.mNextHandle,
+            "Missed running animations last frame!");
+    AnimationHandle* head = mNextFrameAnimations.mNextHandle;
+    if (head) {
+        mNextFrameAnimations.mNextHandle = NULL;
+        mCurrentFrameAnimations.mNextHandle = head;
+        head->mPreviousHandle = &mCurrentFrameAnimations;
+    }
+    mFrameTimeMs = mClock.computeFrameTimeMs();
+}
+
+void AnimationContext::runRemainingAnimations(TreeInfo& info) {
+    while (mCurrentFrameAnimations.mNextHandle) {
+        AnimationHandle* current = mCurrentFrameAnimations.mNextHandle;
+        AnimatorManager& animators = current->mRenderNode->animators();
+        animators.pushStaging();
+        animators.animateNoDamage(info);
+        LOG_ALWAYS_FATAL_IF(mCurrentFrameAnimations.mNextHandle == current,
+                "Animate failed to remove from current frame list!");
+    }
+}
+
+void AnimationContext::callOnFinished(BaseRenderNodeAnimator* animator,
+        AnimationListener* listener) {
+    listener->onAnimationFinished(animator);
+}
+
+AnimationHandle::AnimationHandle(AnimationContext& context)
+        : mContext(context)
+        , mPreviousHandle(NULL)
+        , mNextHandle(NULL) {
+}
+
+AnimationHandle::AnimationHandle(RenderNode& animatingNode, AnimationContext& context)
+        : mRenderNode(&animatingNode)
+        , mContext(context)
+        , mPreviousHandle(NULL)
+        , mNextHandle(NULL) {
+    mRenderNode->animators().setAnimationHandle(this);
+}
+
+AnimationHandle::~AnimationHandle() {
+    LOG_ALWAYS_FATAL_IF(mPreviousHandle || mNextHandle,
+            "AnimationHandle destroyed while still animating!");
+}
+
+void AnimationHandle::notifyAnimationsRan() {
+    removeFromList();
+    if (mRenderNode->animators().hasAnimators()) {
+        mContext.addAnimationHandle(this);
+    } else {
+        mRenderNode->animators().setAnimationHandle(NULL);
+        delete this;
+    }
+}
+
+void AnimationHandle::insertAfter(AnimationHandle* prev) {
+    removeFromList();
+    mNextHandle = prev->mNextHandle;
+    if (mNextHandle) {
+        mNextHandle->mPreviousHandle = this;
+    }
+    prev->mNextHandle = this;
+    mPreviousHandle = prev;
+}
+
+void AnimationHandle::removeFromList() {
+    if (mPreviousHandle) {
+        mPreviousHandle->mNextHandle = mNextHandle;
+    }
+    if (mNextHandle) {
+        mNextHandle->mPreviousHandle = mPreviousHandle;
+    }
+    mPreviousHandle = NULL;
+    mNextHandle = NULL;
+}
+
+} /* namespace uirenderer */
+} /* namespace android */