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Side by Side Diff: content/public/browser/render_widget_host.h

Issue 9600036: Move Render(View|Widget)Host and associated classes to content namespace. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Respond to review comments. Created 8 years, 9 months ago
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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 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 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #ifndef CONTENT_PUBLIC_BROWSER_RENDER_WIDGET_HOST_H_ 5 #ifndef CONTENT_PUBLIC_BROWSER_RENDER_WIDGET_HOST_H_
6 #define CONTENT_PUBLIC_BROWSER_RENDER_WIDGET_HOST_H_ 6 #define CONTENT_PUBLIC_BROWSER_RENDER_WIDGET_HOST_H_
7 #pragma once 7 #pragma once
8 8
9 #include "content/common/content_export.h" 9 #include "content/common/content_export.h"
10 #include "content/public/browser/native_web_keyboard_event.h" 10 #include "content/public/browser/native_web_keyboard_event.h"
11 #include "ipc/ipc_channel.h" 11 #include "ipc/ipc_channel.h"
12 #include "third_party/WebKit/Source/WebKit/chromium/public/WebInputEvent.h" 12 #include "third_party/WebKit/Source/WebKit/chromium/public/WebInputEvent.h"
13 #include "third_party/WebKit/Source/WebKit/chromium/public/WebTextDirection.h" 13 #include "third_party/WebKit/Source/WebKit/chromium/public/WebTextDirection.h"
14 #include "ui/gfx/size.h" 14 #include "ui/gfx/size.h"
15 #include "ui/gfx/surface/transport_dib.h" 15 #include "ui/gfx/surface/transport_dib.h"
16 16
17 #if defined(TOOLKIT_GTK) 17 #if defined(TOOLKIT_GTK)
18 #include "ui/base/x/x11_util.h" 18 #include "ui/base/x/x11_util.h"
19 #elif defined(OS_MACOSX) 19 #elif defined(OS_MACOSX)
20 #include "skia/ext/platform_device.h" 20 #include "skia/ext/platform_device.h"
21 #endif 21 #endif
22 22
23 class RenderWidgetHostImpl;
24
25 namespace content {
26 class RenderProcessHost;
27 class RenderWidgetHostView;
28 }
29
30 namespace gfx { 23 namespace gfx {
31 class Rect; 24 class Rect;
32 } 25 }
33 26
34 namespace skia { 27 namespace skia {
35 class PlatformCanvas; 28 class PlatformCanvas;
36 } 29 }
37 30
31 namespace content {
32
33 class RenderProcessHost;
34 class RenderWidgetHostImpl;
35 class RenderWidgetHostView;
36
38 // A RenderWidgetHost manages the browser side of a browser<->renderer 37 // A RenderWidgetHost manages the browser side of a browser<->renderer
39 // HWND connection. The HWND lives in the browser process, and 38 // HWND connection. The HWND lives in the browser process, and
40 // windows events are sent over IPC to the corresponding object in the 39 // windows events are sent over IPC to the corresponding object in the
41 // renderer. The renderer paints into shared memory, which we 40 // renderer. The renderer paints into shared memory, which we
42 // transfer to a backing store and blit to the screen when Windows 41 // transfer to a backing store and blit to the screen when Windows
43 // sends us a WM_PAINT message. 42 // sends us a WM_PAINT message.
44 // 43 //
45 // How Shutdown Works 44 // How Shutdown Works
46 // 45 //
47 // There are two situations in which this object, a RenderWidgetHost, can be 46 // There are two situations in which this object, a RenderWidgetHost, can be
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198 // the view when it has received a message. 197 // the view when it has received a message.
199 virtual void ForwardMouseEvent( 198 virtual void ForwardMouseEvent(
200 const WebKit::WebMouseEvent& mouse_event) = 0; 199 const WebKit::WebMouseEvent& mouse_event) = 0;
201 virtual void ForwardWheelEvent( 200 virtual void ForwardWheelEvent(
202 const WebKit::WebMouseWheelEvent& wheel_event) = 0; 201 const WebKit::WebMouseWheelEvent& wheel_event) = 0;
203 virtual void ForwardKeyboardEvent( 202 virtual void ForwardKeyboardEvent(
204 const NativeWebKeyboardEvent& key_event) = 0; 203 const NativeWebKeyboardEvent& key_event) = 0;
205 204
206 virtual const gfx::Point& GetLastScrollOffset() const = 0; 205 virtual const gfx::Point& GetLastScrollOffset() const = 0;
207 206
208 virtual content::RenderProcessHost* GetProcess() const = 0; 207 virtual RenderProcessHost* GetProcess() const = 0;
209 208
210 virtual int GetRoutingID() const = 0; 209 virtual int GetRoutingID() const = 0;
211 210
212 // Gets the View of this RenderWidgetHost. Can be NULL, e.g. if the 211 // Gets the View of this RenderWidgetHost. Can be NULL, e.g. if the
213 // RenderWidget is being destroyed or the render process crashed. You should 212 // RenderWidget is being destroyed or the render process crashed. You should
214 // never cache this pointer since it can become NULL if the renderer crashes, 213 // never cache this pointer since it can become NULL if the renderer crashes,
215 // instead you should always ask for it using the accessor. 214 // instead you should always ask for it using the accessor.
216 virtual content::RenderWidgetHostView* GetView() const = 0; 215 virtual RenderWidgetHostView* GetView() const = 0;
217 216
218 // Returns true if this is a RenderViewHost, false if not. 217 // Returns true if this is a RenderViewHost, false if not.
219 virtual bool IsRenderView() const = 0; 218 virtual bool IsRenderView() const = 0;
220 219
221 // Used as the details object for a 220 // Used as the details object for a
222 // RENDER_WIDGET_HOST_DID_RECEIVE_PAINT_AT_SIZE_ACK notification. 221 // RENDER_WIDGET_HOST_DID_RECEIVE_PAINT_AT_SIZE_ACK notification.
223 // TODO(joi): Switch out for a std::pair. 222 // TODO(joi): Switch out for a std::pair.
224 struct PaintAtSizeAckDetails { 223 struct PaintAtSizeAckDetails {
225 // The tag that was passed to the PaintAtSize() call that triggered this 224 // The tag that was passed to the PaintAtSize() call that triggered this
226 // ack. 225 // ack.
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280 friend class RenderWidgetHostImpl; 279 friend class RenderWidgetHostImpl;
281 280
282 // Retrieves the implementation class. Intended only for code 281 // Retrieves the implementation class. Intended only for code
283 // within content/. This method is necessary because 282 // within content/. This method is necessary because
284 // RenderWidgetHost is the root of a diamond inheritance pattern, so 283 // RenderWidgetHost is the root of a diamond inheritance pattern, so
285 // subclasses inherit it virtually, which removes our ability to 284 // subclasses inherit it virtually, which removes our ability to
286 // static_cast to the subclass. 285 // static_cast to the subclass.
287 virtual RenderWidgetHostImpl* AsRenderWidgetHostImpl() = 0; 286 virtual RenderWidgetHostImpl* AsRenderWidgetHostImpl() = 0;
288 }; 287 };
289 288
289 } // namespace content
290
290 #endif // CONTENT_PUBLIC_BROWSER_RENDER_WIDGET_HOST_H_ 291 #endif // CONTENT_PUBLIC_BROWSER_RENDER_WIDGET_HOST_H_
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