Part 3 of cc/ directory shuffles: animation

cc/scrollbar_animation_controller_linear_fade.cc

Index: cc/scrollbar_animation_controller_linear_fade.cc
diff --git a/cc/scrollbar_animation_controller_linear_fade.cc b/cc/scrollbar_animation_controller_linear_fade.cc
deleted file mode 100644
index f4f4acf693011aa4c7eedbfb328aded597e54245..0000000000000000000000000000000000000000
--- a/cc/scrollbar_animation_controller_linear_fade.cc
+++ /dev/null
@@ -1,94 +0,0 @@
-// 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 "cc/scrollbar_animation_controller_linear_fade.h"
-
-#include "base/time.h"
-#include "cc/layer_impl.h"
-
-namespace cc {
-
-scoped_ptr<ScrollbarAnimationControllerLinearFade> ScrollbarAnimationControllerLinearFade::create(LayerImpl* scrollLayer, base::TimeDelta fadeoutDelay, base::TimeDelta fadeoutLength)
-{
-    return make_scoped_ptr(new ScrollbarAnimationControllerLinearFade(scrollLayer, fadeoutDelay, fadeoutLength));
-}
-
-ScrollbarAnimationControllerLinearFade::ScrollbarAnimationControllerLinearFade(LayerImpl* scrollLayer, base::TimeDelta fadeoutDelay, base::TimeDelta fadeoutLength)
-    : ScrollbarAnimationController()
-    , m_scrollLayer(scrollLayer)
-    , m_scrollGestureInProgress(false)
-    , m_fadeoutDelay(fadeoutDelay)
-    , m_fadeoutLength(fadeoutLength)
-{
-}
-
-ScrollbarAnimationControllerLinearFade::~ScrollbarAnimationControllerLinearFade()
-{
-}
-
-bool ScrollbarAnimationControllerLinearFade::isScrollGestureInProgress() const
-{
-    return m_scrollGestureInProgress;
-}
-
-bool ScrollbarAnimationControllerLinearFade::isAnimating() const
-{
-    return !m_lastAwakenTime.is_null();
-}
-
-base::TimeDelta ScrollbarAnimationControllerLinearFade::delayBeforeStart(base::TimeTicks now) const
-{
-    if (now > m_lastAwakenTime + m_fadeoutDelay)
-        return base::TimeDelta();
-    return m_fadeoutDelay - (now - m_lastAwakenTime);
-}
-
-bool ScrollbarAnimationControllerLinearFade::animate(base::TimeTicks now)
-{
-    float opacity = opacityAtTime(now);
-    m_scrollLayer->SetScrollbarOpacity(opacity);
-    if (!opacity)
-       m_lastAwakenTime = base::TimeTicks();
-    return isAnimating() && delayBeforeStart(now) == base::TimeDelta();
-}
-
-void ScrollbarAnimationControllerLinearFade::didScrollGestureBegin()
-{
-    m_scrollLayer->SetScrollbarOpacity(1);
-    m_scrollGestureInProgress = true;
-    m_lastAwakenTime = base::TimeTicks();
-}
-
-void ScrollbarAnimationControllerLinearFade::didScrollGestureEnd(base::TimeTicks now)
-{
-    m_scrollGestureInProgress = false;
-    m_lastAwakenTime = now;
-}
-
-void ScrollbarAnimationControllerLinearFade::didProgrammaticallyUpdateScroll(base::TimeTicks now)
-{
-    // Don't set m_scrollGestureInProgress as this scroll is not from a gesture
-    // and we won't receive ScrollEnd.
-    m_scrollLayer->SetScrollbarOpacity(1);
-    m_lastAwakenTime = now;
-}
-
-float ScrollbarAnimationControllerLinearFade::opacityAtTime(base::TimeTicks now)
-{
-    if (m_scrollGestureInProgress)
-        return 1;
-
-    if (m_lastAwakenTime.is_null())
-        return 0;
-
-    base::TimeDelta delta = now - m_lastAwakenTime;
-
-    if (delta <= m_fadeoutDelay)
-        return 1;
-    if (delta < m_fadeoutDelay + m_fadeoutLength)
-        return (m_fadeoutDelay + m_fadeoutLength - delta).InSecondsF() / m_fadeoutLength.InSecondsF();
-    return 0;
-}
-
-}  // namespace cc