Moves windowsresizers to ash/wm/common

ash/wm/workspace/phantom_window_controller.cc

-// Copyright (c) 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 "ash/wm/workspace/phantom_window_controller.h"
-
-#include <math.h>
-
-#include "ash/wm/common/root_window_finder.h"
-#include "ash/wm/common/wm_root_window_controller.h"
-#include "ash/wm/common/wm_shell_window_ids.h"
-#include "ash/wm/common/wm_window.h"
-#include "grit/ash_resources.h"
-#include "ui/compositor/layer.h"
-#include "ui/compositor/scoped_layer_animation_settings.h"
-#include "ui/views/background.h"
-#include "ui/views/painter.h"
-#include "ui/views/view.h"
-#include "ui/views/widget/widget.h"
-
-namespace ash {
-namespace {
-
-// The duration of the show animation.
-const int kAnimationDurationMs = 200;
-
-// The size of the phantom window at the beginning of the show animation in
-// relation to the size of the phantom window at the end of the animation.
-const float kStartBoundsRatio = 0.85f;
-
-// The amount of pixels that the phantom window's shadow should extend past
-// the bounds passed into Show().
-const int kShadowThickness = 15;
-
-// The minimum size of a phantom window including the shadow. The minimum size
-// is derived from the size of the IDR_AURA_PHANTOM_WINDOW image assets.
-const int kMinSizeWithShadow = 100;
-
-// Adjusts the phantom window's bounds so that the bounds:
-// - Include the size of the shadow.
-// - Have a size equal to or larger than the minimum phantom window size.
-gfx::Rect GetAdjustedBounds(const gfx::Rect& bounds) {
-  int x_inset = std::max(
-      static_cast<int>(ceil((kMinSizeWithShadow - bounds.width()) / 2.0f)),
-      kShadowThickness);
-  int y_inset = std::max(
-      static_cast<int>(ceil((kMinSizeWithShadow - bounds.height()) / 2.0f)),
-      kShadowThickness);
-
-  gfx::Rect adjusted_bounds(bounds);
-  adjusted_bounds.Inset(-x_inset, -y_inset);
-  return adjusted_bounds;
-}
-
-// Starts an animation of |widget| to |new_bounds_in_screen|. No-op if |widget|
-// is NULL.
-void AnimateToBounds(views::Widget* widget,
-                     const gfx::Rect& new_bounds_in_screen) {
-  if (!widget)
-    return;
-
-  ui::ScopedLayerAnimationSettings scoped_setter(
-      wm::WmWindow::Get(widget)->GetLayer()->GetAnimator());
-  scoped_setter.SetTweenType(gfx::Tween::EASE_IN);
-  scoped_setter.SetPreemptionStrategy(
-      ui::LayerAnimator::IMMEDIATELY_ANIMATE_TO_NEW_TARGET);
-  scoped_setter.SetTransitionDuration(
-      base::TimeDelta::FromMilliseconds(kAnimationDurationMs));
-  widget->SetBounds(new_bounds_in_screen);
-}
-
-}  // namespace
-
-// PhantomWindowController ----------------------------------------------------
-
-PhantomWindowController::PhantomWindowController(wm::WmWindow* window)
-    : window_(window) {}
-
-PhantomWindowController::~PhantomWindowController() {
-}
-
-void PhantomWindowController::Show(const gfx::Rect& bounds_in_screen) {
-  gfx::Rect adjusted_bounds_in_screen = GetAdjustedBounds(bounds_in_screen);
-  if (adjusted_bounds_in_screen == target_bounds_in_screen_)
-    return;
-  target_bounds_in_screen_ = adjusted_bounds_in_screen;
-
-  gfx::Rect start_bounds_in_screen = target_bounds_in_screen_;
-  int start_width = std::max(
-      kMinSizeWithShadow,
-      static_cast<int>(start_bounds_in_screen.width() * kStartBoundsRatio));
-  int start_height = std::max(
-      kMinSizeWithShadow,
-      static_cast<int>(start_bounds_in_screen.height() * kStartBoundsRatio));
-  start_bounds_in_screen.Inset(
-      floor((start_bounds_in_screen.width() - start_width) / 2.0f),
-      floor((start_bounds_in_screen.height() - start_height) / 2.0f));
-  phantom_widget_ =
-      CreatePhantomWidget(wm::GetRootWindowMatching(target_bounds_in_screen_),
-                          start_bounds_in_screen);
-
-  AnimateToBounds(phantom_widget_.get(), target_bounds_in_screen_);
-}
-
-std::unique_ptr<views::Widget> PhantomWindowController::CreatePhantomWidget(
-    wm::WmWindow* root_window,
-    const gfx::Rect& bounds_in_screen) {
-  std::unique_ptr<views::Widget> phantom_widget(new views::Widget);
-  views::Widget::InitParams params(views::Widget::InitParams::TYPE_POPUP);
-  params.opacity = views::Widget::InitParams::TRANSLUCENT_WINDOW;
-  // PhantomWindowController is used by FrameMaximizeButton to highlight the
-  // launcher button. Put the phantom in the same window as the launcher so that
-  // the phantom is visible.
-  params.keep_on_top = true;
-  params.ownership = views::Widget::InitParams::WIDGET_OWNS_NATIVE_WIDGET;
-  root_window->GetRootWindowController()->ConfigureWidgetInitParamsForContainer(
-      phantom_widget.get(), kShellWindowId_ShelfContainer, &params);
-  phantom_widget->set_focus_on_creation(false);
-  phantom_widget->Init(params);
-  phantom_widget->SetVisibilityChangedAnimationsEnabled(false);
-  wm::WmWindow* phantom_widget_window = wm::WmWindow::Get(phantom_widget.get());
-  phantom_widget_window->SetName("PhantomWindow");
-  phantom_widget_window->SetShellWindowId(kShellWindowId_PhantomWindow);
-  phantom_widget->SetBounds(bounds_in_screen);
-  // TODO(sky): I suspect this is never true, verify that.
-  if (phantom_widget_window->GetParent() == window_->GetParent()) {
-    phantom_widget_window->GetParent()->StackChildAbove(phantom_widget_window,
-                                                        window_);
-  }
-
-  const int kImages[] = IMAGE_GRID(IDR_AURA_PHANTOM_WINDOW);
-  views::Painter* background_painter =
-      views::Painter::CreateImageGridPainter(kImages);
-  views::View* content_view = new views::View;
-  content_view->set_background(
-      views::Background::CreateBackgroundPainter(true, background_painter));
-  phantom_widget->SetContentsView(content_view);
-
-  // Show the widget after all the setups.
-  phantom_widget->Show();
-
-  // Fade the window in.
-  ui::Layer* widget_layer = phantom_widget_window->GetLayer();
-  widget_layer->SetOpacity(0);
-  ui::ScopedLayerAnimationSettings scoped_setter(widget_layer->GetAnimator());
-  scoped_setter.SetTransitionDuration(
-      base::TimeDelta::FromMilliseconds(kAnimationDurationMs));
-  widget_layer->SetOpacity(1);
-
-  return phantom_widget;
-}
-
-}  // namespace ash