Delete athena/

athena/wm/title_drag_controller.cc

Index: athena/wm/title_drag_controller.cc
diff --git a/athena/wm/title_drag_controller.cc b/athena/wm/title_drag_controller.cc
deleted file mode 100644
index a0301e101a224c4c14b0b2f33ee70e52335950a3..0000000000000000000000000000000000000000
--- a/athena/wm/title_drag_controller.cc
+++ /dev/null
@@ -1,144 +0,0 @@
-// Copyright 2014 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 "athena/wm/title_drag_controller.h"
-
-#include "base/bind.h"
-#include "ui/aura/window.h"
-#include "ui/aura/window_delegate.h"
-#include "ui/base/hit_test.h"
-#include "ui/compositor/closure_animation_observer.h"
-#include "ui/compositor/layer.h"
-#include "ui/compositor/scoped_layer_animation_settings.h"
-#include "ui/wm/core/shadow.h"
-#include "ui/wm/core/window_util.h"
-
-namespace {
-
-// The minimum amount to drag to confirm a window switch at the end of the
-// non-fling gesture.
-const int kMinDragDistanceForSwitch = 300;
-// The minimum velocity to confirm a window switch for a fling (only applicable
-// if the amount dragged was not sufficient, i.e. smaller than
-// kMinDragDistanceForSwitch).
-const int kMinDragVelocityForSwitch = 5000;
-
-}
-
-namespace athena {
-
-TitleDragController::TitleDragController(aura::Window* container,
-                                         TitleDragControllerDelegate* delegate)
-    : container_(container),
-      delegate_(delegate),
-      weak_ptr_(this) {
-  CHECK(container_);
-  CHECK(delegate_);
-  container_->AddPreTargetHandler(this);
-}
-
-TitleDragController::~TitleDragController() {
-  container_->RemovePreTargetHandler(this);
-}
-
-void TitleDragController::EndTransition(aura::Window* window, bool complete) {
-  ui::ScopedLayerAnimationSettings settings(window->layer()->GetAnimator());
-  settings.SetPreemptionStrategy(
-      ui::LayerAnimator::IMMEDIATELY_ANIMATE_TO_NEW_TARGET);
-  settings.AddObserver(new ui::ClosureAnimationObserver(
-      base::Bind(&TitleDragController::OnTransitionEnd,
-                 weak_ptr_.GetWeakPtr(),
-                 window,
-                 complete)));
-  gfx::Transform transform;
-  transform.Translate(0, complete ? window->bounds().height() : 0);
-  window->SetTransform(transform);
-}
-
-void TitleDragController::OnTransitionEnd(aura::Window* window, bool complete) {
-  weak_ptr_.InvalidateWeakPtrs();
-  if (!tracker_.Contains(window))
-    window = nullptr;
-  shadow_.reset();
-  if (window) {
-    window->SetTransform(gfx::Transform());
-    tracker_.Remove(window);
-  }
-  if (complete && window && wm::IsActiveWindow(window))
-    delegate_->OnTitleDragCompleted(window);
-  else
-    delegate_->OnTitleDragCanceled(window);
-}
-
-void TitleDragController::OnGestureEvent(ui::GestureEvent* gesture) {
-  // Do not process any gesture events if an animation is still in progress from
-  // a previous drag.
-  if (weak_ptr_.HasWeakPtrs())
-    return;
-
-  if (gesture->type() == ui::ET_GESTURE_TAP_DOWN) {
-    // It is possible to start a gesture sequence on a second window while a
-    // drag is already in progress (e.g. the user starts interacting with the
-    // window that is being revealed by the title-drag). Ignore these gesture
-    // sequences.
-    if (!tracker_.windows().empty())
-      return;
-    aura::Window* window = static_cast<aura::Window*>(gesture->target());
-    if (!window || !window->delegate())
-      return;
-    int component =
-        window->delegate()->GetNonClientComponent(gesture->location());
-    if (component != HTCAPTION)
-      return;
-    if (!delegate_->GetWindowBehind(window))
-      return;
-    tracker_.Add(window);
-    drag_start_location_ = gesture->root_location();
-    return;
-  }
-
-  // If this gesture is for a different window, then ignore.
-  aura::Window* window = static_cast<aura::Window*>(gesture->target());
-  if (!tracker_.Contains(window))
-    return;
-
-  if (gesture->type() == ui::ET_GESTURE_SCROLL_BEGIN) {
-    delegate_->OnTitleDragStarted(window);
-    shadow_.reset(new wm::Shadow());
-    shadow_->Init(wm::Shadow::STYLE_ACTIVE);
-    shadow_->SetContentBounds(gfx::Rect(window->bounds().size()));
-    window->layer()->Add(shadow_->layer());
-    gesture->SetHandled();
-    return;
-  }
-
-  if (gesture->type() == ui::ET_GESTURE_SCROLL_UPDATE) {
-    gfx::Vector2dF distance = gesture->root_location() - drag_start_location_;
-    gfx::Transform transform;
-    transform.Translate(0, std::max(0.f, distance.y()));
-    window->SetTransform(transform);
-    gesture->SetHandled();
-    return;
-  }
-
-  if (gesture->type() == ui::ET_GESTURE_SCROLL_END) {
-    gfx::Vector2dF distance = gesture->root_location() - drag_start_location_;
-    EndTransition(window, distance.y() >= kMinDragDistanceForSwitch);
-    gesture->SetHandled();
-    return;
-  }
-
-  if (gesture->type() == ui::ET_SCROLL_FLING_START) {
-    gfx::Vector2dF distance = gesture->root_location() - drag_start_location_;
-    bool swipe_downwards = gesture->details().velocity_y() > 0;
-    EndTransition(
-        window,
-        swipe_downwards &&
-            (distance.y() >= kMinDragDistanceForSwitch ||
-             gesture->details().velocity_y() >= kMinDragVelocityForSwitch));
-    gesture->SetHandled();
-  }
-}
-
-}  // namespace athena