web_contents_view_aura.h revision 7d4cd473f85ac64c3747c96c277f9e506a0d2246
1// Copyright (c) 2012 The Chromium Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style license that can be 3// found in the LICENSE file. 4 5#ifndef CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_VIEW_AURA_H_ 6#define CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_VIEW_AURA_H_ 7 8#include <vector> 9 10#include "base/memory/ref_counted.h" 11#include "base/memory/scoped_ptr.h" 12#include "content/browser/renderer_host/overscroll_controller_delegate.h" 13#include "content/common/content_export.h" 14#include "content/port/browser/render_view_host_delegate_view.h" 15#include "content/port/browser/web_contents_view_port.h" 16#include "ui/aura/client/drag_drop_delegate.h" 17#include "ui/aura/window_delegate.h" 18#include "ui/compositor/layer_animation_observer.h" 19 20namespace aura { 21class Window; 22} 23 24namespace ui { 25class DropTargetEvent; 26} 27 28namespace content { 29class OverscrollNavigationOverlay; 30class ShadowLayerDelegate; 31class TouchEditableImplAura; 32class WebContentsViewDelegate; 33class WebContentsImpl; 34class WebDragDestDelegate; 35 36class CONTENT_EXPORT WebContentsViewAura 37 : public WebContentsViewPort, 38 public RenderViewHostDelegateView, 39 NON_EXPORTED_BASE(public OverscrollControllerDelegate), 40 public ui::ImplicitAnimationObserver, 41 public aura::WindowDelegate, 42 public aura::client::DragDropDelegate { 43 public: 44 WebContentsViewAura(WebContentsImpl* web_contents, 45 WebContentsViewDelegate* delegate); 46 47 void SetupOverlayWindowForTesting(); 48 49 void SetTouchEditableForTest(TouchEditableImplAura* touch_editable); 50 51 private: 52 class WindowObserver; 53#if defined(OS_WIN) 54 class ChildWindowObserver; 55#endif 56 57 virtual ~WebContentsViewAura(); 58 59 void SizeChangedCommon(const gfx::Size& size); 60 61 void EndDrag(WebKit::WebDragOperationsMask ops); 62 63 // Creates and sets up the overlay window that will be displayed during the 64 // overscroll gesture. 65 void PrepareOverscrollWindow(); 66 67 // Sets up the content window in preparation for starting an overscroll 68 // gesture. 69 void PrepareContentWindowForOverscroll(); 70 71 // Resets any in-progress animation for the overscroll gesture. Note that this 72 // doesn't immediately reset the internal states; that happens after an 73 // animation. 74 void ResetOverscrollTransform(); 75 76 // Completes the navigation in response to a completed overscroll gesture. 77 // The navigation happens after an animation (either the overlay window 78 // animates in, or the content window animates out). 79 void CompleteOverscrollNavigation(OverscrollMode mode); 80 81 // Returns the window that should be animated for the overscroll gesture. 82 // (note that during the overscroll gesture, either the overlay window or the 83 // content window can be animated). 84 aura::Window* GetWindowToAnimateForOverscroll(); 85 86 // Returns the amount the animating window should be translated in response to 87 // the overscroll gesture. 88 gfx::Vector2d GetTranslationForOverscroll(int delta_x, int delta_y); 89 90 // A window showing the screenshot is overlayed during a navigation triggered 91 // by overscroll. This function sets this up. 92 void PrepareOverscrollNavigationOverlay(); 93 94 // Changes the brightness of the layer depending on the amount of horizontal 95 // overscroll (|delta_x|, in pixels). 96 void UpdateOverscrollWindowBrightness(float delta_x); 97 98 void AttachTouchEditableToRenderView(); 99 100 // Overridden from WebContentsView: 101 virtual gfx::NativeView GetNativeView() const OVERRIDE; 102 virtual gfx::NativeView GetContentNativeView() const OVERRIDE; 103 virtual gfx::NativeWindow GetTopLevelNativeWindow() const OVERRIDE; 104 virtual void GetContainerBounds(gfx::Rect *out) const OVERRIDE; 105 virtual void OnTabCrashed(base::TerminationStatus status, 106 int error_code) OVERRIDE; 107 virtual void SizeContents(const gfx::Size& size) OVERRIDE; 108 virtual void Focus() OVERRIDE; 109 virtual void SetInitialFocus() OVERRIDE; 110 virtual void StoreFocus() OVERRIDE; 111 virtual void RestoreFocus() OVERRIDE; 112 virtual WebDropData* GetDropData() const OVERRIDE; 113 virtual gfx::Rect GetViewBounds() const OVERRIDE; 114 115 // Overridden from WebContentsViewPort: 116 virtual void CreateView( 117 const gfx::Size& initial_size, gfx::NativeView context) OVERRIDE; 118 virtual RenderWidgetHostView* CreateViewForWidget( 119 RenderWidgetHost* render_widget_host) OVERRIDE; 120 virtual RenderWidgetHostView* CreateViewForPopupWidget( 121 RenderWidgetHost* render_widget_host) OVERRIDE; 122 virtual void SetPageTitle(const string16& title) OVERRIDE; 123 virtual void RenderViewCreated(RenderViewHost* host) OVERRIDE; 124 virtual void RenderViewSwappedIn(RenderViewHost* host) OVERRIDE; 125 virtual void SetOverscrollControllerEnabled(bool enabled) OVERRIDE; 126 127 // Overridden from RenderViewHostDelegateView: 128 virtual void ShowContextMenu(const ContextMenuParams& params) OVERRIDE; 129 virtual void ShowPopupMenu(const gfx::Rect& bounds, 130 int item_height, 131 double item_font_size, 132 int selected_item, 133 const std::vector<WebMenuItem>& items, 134 bool right_aligned, 135 bool allow_multiple_selection) OVERRIDE; 136 virtual void StartDragging(const WebDropData& drop_data, 137 WebKit::WebDragOperationsMask operations, 138 const gfx::ImageSkia& image, 139 const gfx::Vector2d& image_offset, 140 const DragEventSourceInfo& event_info) OVERRIDE; 141 virtual void UpdateDragCursor(WebKit::WebDragOperation operation) OVERRIDE; 142 virtual void GotFocus() OVERRIDE; 143 virtual void TakeFocus(bool reverse) OVERRIDE; 144 145 // Overridden from OverscrollControllerDelegate: 146 virtual void OnOverscrollUpdate(float delta_x, float delta_y) OVERRIDE; 147 virtual void OnOverscrollComplete(OverscrollMode overscroll_mode) OVERRIDE; 148 virtual void OnOverscrollModeChange(OverscrollMode old_mode, 149 OverscrollMode new_mode) OVERRIDE; 150 151 // Overridden from ui::ImplicitAnimationObserver: 152 virtual void OnImplicitAnimationsCompleted() OVERRIDE; 153 154 // Overridden from aura::WindowDelegate: 155 virtual gfx::Size GetMinimumSize() const OVERRIDE; 156 virtual gfx::Size GetMaximumSize() const OVERRIDE; 157 virtual void OnBoundsChanged(const gfx::Rect& old_bounds, 158 const gfx::Rect& new_bounds) OVERRIDE; 159 virtual gfx::NativeCursor GetCursor(const gfx::Point& point) OVERRIDE; 160 virtual int GetNonClientComponent(const gfx::Point& point) const OVERRIDE; 161 virtual bool ShouldDescendIntoChildForEventHandling( 162 aura::Window* child, 163 const gfx::Point& location) OVERRIDE; 164 virtual bool CanFocus() OVERRIDE; 165 virtual void OnCaptureLost() OVERRIDE; 166 virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE; 167 virtual void OnDeviceScaleFactorChanged(float device_scale_factor) OVERRIDE; 168 virtual void OnWindowDestroying() OVERRIDE; 169 virtual void OnWindowDestroyed() OVERRIDE; 170 virtual void OnWindowTargetVisibilityChanged(bool visible) OVERRIDE; 171 virtual bool HasHitTestMask() const OVERRIDE; 172 virtual void GetHitTestMask(gfx::Path* mask) const OVERRIDE; 173 virtual scoped_refptr<ui::Texture> CopyTexture() OVERRIDE; 174 175 // Overridden from ui::EventHandler: 176 virtual void OnKeyEvent(ui::KeyEvent* event) OVERRIDE; 177 virtual void OnMouseEvent(ui::MouseEvent* event) OVERRIDE; 178 179 // Overridden from aura::client::DragDropDelegate: 180 virtual void OnDragEntered(const ui::DropTargetEvent& event) OVERRIDE; 181 virtual int OnDragUpdated(const ui::DropTargetEvent& event) OVERRIDE; 182 virtual void OnDragExited() OVERRIDE; 183 virtual int OnPerformDrop(const ui::DropTargetEvent& event) OVERRIDE; 184 185 scoped_ptr<aura::Window> window_; 186 187 // The window that shows the screenshot of the history page during an 188 // overscroll navigation gesture. 189 scoped_ptr<aura::Window> overscroll_window_; 190 191 scoped_ptr<WindowObserver> window_observer_; 192#if defined(OS_WIN) 193 scoped_ptr<ChildWindowObserver> child_window_observer_; 194#endif 195 196 // The WebContentsImpl whose contents we display. 197 WebContentsImpl* web_contents_; 198 199 scoped_ptr<WebContentsViewDelegate> delegate_; 200 201 WebKit::WebDragOperationsMask current_drag_op_; 202 203 scoped_ptr<WebDropData> current_drop_data_; 204 205 WebDragDestDelegate* drag_dest_delegate_; 206 207 // We keep track of the render view host we're dragging over. If it changes 208 // during a drag, we need to re-send the DragEnter message. WARNING: 209 // this pointer should never be dereferenced. We only use it for comparing 210 // pointers. 211 void* current_rvh_for_drag_; 212 213 bool overscroll_change_brightness_; 214 215 // The overscroll gesture currently in progress. 216 OverscrollMode current_overscroll_gesture_; 217 218 // This is the completed overscroll gesture. This is used for the animation 219 // callback that happens in response to a completed overscroll gesture. 220 OverscrollMode completed_overscroll_gesture_; 221 222 // This manages the overlay window that shows the screenshot during a history 223 // navigation triggered by the overscroll gesture. 224 scoped_ptr<OverscrollNavigationOverlay> navigation_overlay_; 225 226 scoped_ptr<ShadowLayerDelegate> overscroll_shadow_; 227 228 scoped_ptr<TouchEditableImplAura> touch_editable_; 229 230 DISALLOW_COPY_AND_ASSIGN(WebContentsViewAura); 231}; 232 233} // namespace content 234 235#endif // CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_VIEW_AURA_H_ 236