[cc] Rename all cc/ filenames to Chromium style

BUG=155413

Review URL: https://codereview.chromium.org/11122003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@161671 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 77 insertions, 0 deletions

diff --git a/cc/scrollbar_animation_controller_linear_fade.cc b/cc/scrollbar_animation_controller_linear_fade.cc
new file mode 100644
index 0000000..95ad198
--- /dev/null
+++ b/cc/scrollbar_animation_controller_linear_fade.cc
@@ -0,0 +1,77 @@
+// Copyright 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "config.h"
+
+#include "CCScrollbarAnimationControllerLinearFade.h"
+
+#include "CCScrollbarLayerImpl.h"
+
+namespace cc {
+
+PassOwnPtr<CCScrollbarAnimationControllerLinearFade> CCScrollbarAnimationControllerLinearFade::create(CCLayerImpl* scrollLayer, double fadeoutDelay, double fadeoutLength)
+{
+    return adoptPtr(new CCScrollbarAnimationControllerLinearFade(scrollLayer, fadeoutDelay, fadeoutLength));
+}
+
+CCScrollbarAnimationControllerLinearFade::CCScrollbarAnimationControllerLinearFade(CCLayerImpl* scrollLayer, double fadeoutDelay, double fadeoutLength)
+    : CCScrollbarAnimationController(scrollLayer)
+    , m_lastAwakenTime(-100000000) // arbitrary invalid timestamp
+    , m_pinchGestureInEffect(false)
+    , m_fadeoutDelay(fadeoutDelay)
+    , m_fadeoutLength(fadeoutLength)
+{
+}
+
+CCScrollbarAnimationControllerLinearFade::~CCScrollbarAnimationControllerLinearFade()
+{
+}
+
+bool CCScrollbarAnimationControllerLinearFade::animate(double monotonicTime)
+{
+    float opacity = opacityAtTime(monotonicTime);
+    if (horizontalScrollbarLayer())
+        horizontalScrollbarLayer()->setOpacity(opacity);
+    if (verticalScrollbarLayer())
+        verticalScrollbarLayer()->setOpacity(opacity);
+    return opacity;
+}
+
+void CCScrollbarAnimationControllerLinearFade::didPinchGestureUpdateAtTime(double)
+{
+    m_pinchGestureInEffect = true;
+}
+
+void CCScrollbarAnimationControllerLinearFade::didPinchGestureEndAtTime(double monotonicTime)
+{
+    m_pinchGestureInEffect = false;
+    m_lastAwakenTime = monotonicTime;
+}
+
+void CCScrollbarAnimationControllerLinearFade::updateScrollOffsetAtTime(CCLayerImpl* scrollLayer, double monotonicTime)
+{
+    FloatPoint previousPos = currentPos();
+    CCScrollbarAnimationController::updateScrollOffsetAtTime(scrollLayer, monotonicTime);
+
+    if (previousPos == currentPos())
+        return;
+
+    m_lastAwakenTime = monotonicTime;
+}
+
+float CCScrollbarAnimationControllerLinearFade::opacityAtTime(double monotonicTime)
+{
+    if (m_pinchGestureInEffect)
+        return 1;
+
+    double delta = monotonicTime - m_lastAwakenTime;
+
+    if (delta <= m_fadeoutDelay)
+        return 1;
+    if (delta < m_fadeoutDelay + m_fadeoutLength)
+        return (m_fadeoutDelay + m_fadeoutLength - delta) / m_fadeoutLength;
+    return 0;
+}
+
+} // namespace cc