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| 1 // Copyright (c) 2011 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 UI_VIEWS_CONTROLS_NATIVE_NATIVE_VIEW_HOST_WRAPPER_H_ | |
| 6 #define UI_VIEWS_CONTROLS_NATIVE_NATIVE_VIEW_HOST_WRAPPER_H_ | |
| 7 | |
| 8 #include "ui/gfx/native_widget_types.h" | |
| 9 #include "ui/views/views_export.h" | |
| 10 | |
| 11 namespace views { | |
| 12 | |
| 13 class NativeViewHost; | |
| 14 | |
| 15 // An interface that implemented by an object that wraps a gfx::NativeView on | |
| 16 // a specific platform, used to perform platform specific operations on that | |
| 17 // native view when attached, detached, moved and sized. | |
| 18 class VIEWS_EXPORT NativeViewHostWrapper { | |
| 19 public: | |
| 20 virtual ~NativeViewHostWrapper() {} | |
| 21 | |
| 22 // Called at the end of NativeViewHost::Attach, allowing the wrapper to | |
| 23 // perform platform-specific operations that need to occur to complete | |
| 24 // attaching the gfx::NativeView. | |
| 25 virtual void AttachNativeView() = 0; | |
| 26 | |
| 27 // Called before the attached gfx::NativeView is detached from the | |
| 28 // NativeViewHost, allowing the wrapper to perform platform-specific | |
| 29 // cleanup. |destroyed| is true if the native view is detached | |
| 30 // because it's being destroyed, or false otherwise. | |
| 31 virtual void NativeViewDetaching(bool destroyed) = 0; | |
| 32 | |
| 33 // Called when our associated NativeViewHost is added to a View hierarchy | |
| 34 // rooted at a valid Widget. | |
| 35 virtual void AddedToWidget() = 0; | |
| 36 | |
| 37 // Called when our associated NativeViewHost is removed from a View hierarchy | |
| 38 // rooted at a valid Widget. | |
| 39 virtual void RemovedFromWidget() = 0; | |
| 40 | |
| 41 // Installs a clip on the gfx::NativeView. These values are in the coordinate | |
| 42 // space of the Widget, so if this method is called from ShowWidget | |
| 43 // then the values need to be translated. | |
| 44 virtual void InstallClip(int x, int y, int w, int h) = 0; | |
| 45 | |
| 46 // Whether or not a clip has been installed on the wrapped gfx::NativeView. | |
| 47 virtual bool HasInstalledClip() = 0; | |
| 48 | |
| 49 // Removes the clip installed on the gfx::NativeView by way of InstallClip. A | |
| 50 // following call to ShowWidget should occur after calling this method to | |
| 51 // position the gfx::NativeView correctly, since the clipping process may have | |
| 52 // adjusted its position. | |
| 53 virtual void UninstallClip() = 0; | |
| 54 | |
| 55 // Shows the gfx::NativeView at the specified position (relative to the parent | |
| 56 // native view). | |
| 57 virtual void ShowWidget(int x, int y, int w, int h) = 0; | |
| 58 | |
| 59 // Hides the gfx::NativeView. NOTE: this may be invoked when the native view | |
| 60 // is already hidden. | |
| 61 virtual void HideWidget() = 0; | |
| 62 | |
| 63 // Sets focus to the gfx::NativeView. | |
| 64 virtual void SetFocus() = 0; | |
| 65 | |
| 66 // Return the native view accessible corresponding to the wrapped native | |
| 67 // view. | |
| 68 virtual gfx::NativeViewAccessible GetNativeViewAccessible() = 0; | |
| 69 | |
| 70 // Returns the native cursor corresponding to the point (x, y) | |
| 71 // in the native view. | |
| 72 virtual gfx::NativeCursor GetCursor(int x, int y) = 0; | |
| 73 | |
| 74 // Creates a platform-specific instance of an object implementing this | |
| 75 // interface. | |
| 76 static NativeViewHostWrapper* CreateWrapper(NativeViewHost* host); | |
| 77 }; | |
| 78 | |
| 79 } // namespace views | |
| 80 | |
| 81 #endif // UI_VIEWS_CONTROLS_NATIVE_NATIVE_VIEW_HOST_WRAPPER_H_ | |
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