Move NPAPI implementation out of webkit/plugins/npapi and into content.

webkit/plugins/npapi/webplugin_delegate_impl.h

Index: webkit/plugins/npapi/webplugin_delegate_impl.h
===================================================================
--- webkit/plugins/npapi/webplugin_delegate_impl.h	(revision 212369)
+++ webkit/plugins/npapi/webplugin_delegate_impl.h	(working copy)
@@ -1,507 +0,0 @@
-// 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.
-
-#ifndef WEBKIT_PLUGINS_NPAPI_WEBPLUGIN_DELEGATE_IMPL_H_
-#define WEBKIT_PLUGINS_NPAPI_WEBPLUGIN_DELEGATE_IMPL_H_
-
-#include <string>
-#include <vector>
-
-#include "base/memory/ref_counted.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/memory/weak_ptr.h"
-#include "base/sequenced_task_runner_helpers.h"
-#include "base/timer/timer.h"
-#include "build/build_config.h"
-#include "third_party/npapi/bindings/npapi.h"
-#include "ui/gfx/native_widget_types.h"
-#include "ui/gfx/rect.h"
-#include "webkit/common/cursors/webcursor.h"
-#include "webkit/plugins/npapi/webplugin_delegate.h"
-#include "webkit/plugins/webkit_plugins_export.h"
-
-#if defined(USE_X11)
-#include "ui/base/x/x11_util.h"
-
-typedef struct _GdkDrawable GdkPixmap;
-#endif
-
-namespace base {
-class FilePath;
-}
-
-#if defined(OS_MACOSX)
-#ifdef __OBJC__
-@class CALayer;
-@class CARenderer;
-#else
-class CALayer;
-class CARenderer;
-#endif
-#endif
-
-namespace webkit {
-namespace npapi {
-
-class PluginInstance;
-
-#if defined(OS_MACOSX)
-class WebPluginAcceleratedSurface;
-class ExternalDragTracker;
-#endif  // OS_MACOSX
-
-#if defined(OS_WIN)
-class WebPluginIMEWin;
-#endif  // OS_WIN
-
-// An implementation of WebPluginDelegate that runs in the plugin process,
-// proxied from the renderer by WebPluginDelegateProxy.
-class WEBKIT_PLUGINS_EXPORT WebPluginDelegateImpl : public WebPluginDelegate {
- public:
-  enum PluginQuirks {
-    PLUGIN_QUIRK_SETWINDOW_TWICE = 1,  // Win32
-    PLUGIN_QUIRK_THROTTLE_WM_USER_PLUS_ONE = 2,  // Win32
-    PLUGIN_QUIRK_DONT_CALL_WND_PROC_RECURSIVELY = 4,  // Win32
-    PLUGIN_QUIRK_DONT_SET_NULL_WINDOW_HANDLE_ON_DESTROY = 8,  // Win32
-    PLUGIN_QUIRK_DONT_ALLOW_MULTIPLE_INSTANCES = 16,  // Win32
-    PLUGIN_QUIRK_DIE_AFTER_UNLOAD = 32,  // Win32
-    PLUGIN_QUIRK_PATCH_SETCURSOR = 64,  // Win32
-    PLUGIN_QUIRK_BLOCK_NONSTANDARD_GETURL_REQUESTS = 128,  // Win32
-    PLUGIN_QUIRK_WINDOWLESS_OFFSET_WINDOW_TO_DRAW = 256,  // Linux
-    PLUGIN_QUIRK_WINDOWLESS_INVALIDATE_AFTER_SET_WINDOW = 512,  // Linux
-    PLUGIN_QUIRK_NO_WINDOWLESS = 1024,  // Windows
-    PLUGIN_QUIRK_PATCH_REGENUMKEYEXW = 2048,  // Windows
-    PLUGIN_QUIRK_ALWAYS_NOTIFY_SUCCESS = 4096,  // Windows
-    PLUGIN_QUIRK_HANDLE_MOUSE_CAPTURE = 16384,  // Windows
-    PLUGIN_QUIRK_WINDOWLESS_NO_RIGHT_CLICK = 32768,  // Linux
-    PLUGIN_QUIRK_IGNORE_FIRST_SETWINDOW_CALL = 65536,  // Windows.
-    PLUGIN_QUIRK_EMULATE_IME = 131072,  // Windows.
-  };
-
-  static WebPluginDelegateImpl* Create(const base::FilePath& filename,
-                                       const std::string& mime_type);
-
-#if defined(OS_WIN)
-  static bool IsPluginDelegateWindow(HWND window);
-  static bool GetPluginNameFromWindow(HWND window,
-                                      base::string16* plugin_name);
-  static bool GetPluginVersionFromWindow(HWND window,
-                                         base::string16* plugin_version);
-
-  // Returns true if the window handle passed in is that of the dummy
-  // activation window for windowless plugins.
-  static bool IsDummyActivationWindow(HWND window);
-
-  // Returns the default HWND to parent the windowed plugins and dummy windows
-  // for activation to when none isavailable.
-  static HWND GetDefaultWindowParent();
-#endif
-
-  // WebPluginDelegate implementation
-  virtual bool Initialize(const GURL& url,
-                          const std::vector<std::string>& arg_names,
-                          const std::vector<std::string>& arg_values,
-                          WebPlugin* plugin,
-                          bool load_manually) OVERRIDE;
-  virtual void PluginDestroyed() OVERRIDE;
-  virtual void UpdateGeometry(const gfx::Rect& window_rect,
-                              const gfx::Rect& clip_rect) OVERRIDE;
-  virtual void Paint(WebKit::WebCanvas* canvas, const gfx::Rect& rect) OVERRIDE;
-  virtual void SetFocus(bool focused) OVERRIDE;
-  virtual bool HandleInputEvent(const WebKit::WebInputEvent& event,
-                                WebCursor::CursorInfo* cursor_info) OVERRIDE;
-  virtual NPObject* GetPluginScriptableObject() OVERRIDE;
-  virtual NPP GetPluginNPP() OVERRIDE;
-  virtual bool GetFormValue(base::string16* value) OVERRIDE;
-  virtual void DidFinishLoadWithReason(const GURL& url,
-                                       NPReason reason,
-                                       int notify_id) OVERRIDE;
-  virtual int GetProcessId() OVERRIDE;
-  virtual void SendJavaScriptStream(const GURL& url,
-                                    const std::string& result,
-                                    bool success,
-                                    int notify_id) OVERRIDE;
-  virtual void DidReceiveManualResponse(const GURL& url,
-                                        const std::string& mime_type,
-                                        const std::string& headers,
-                                        uint32 expected_length,
-                                        uint32 last_modified) OVERRIDE;
-  virtual void DidReceiveManualData(const char* buffer, int length) OVERRIDE;
-  virtual void DidFinishManualLoading() OVERRIDE;
-  virtual void DidManualLoadFail() OVERRIDE;
-  virtual WebPluginResourceClient* CreateResourceClient(
-      unsigned long resource_id, const GURL& url, int notify_id) OVERRIDE;
-  virtual WebPluginResourceClient* CreateSeekableResourceClient(
-      unsigned long resource_id, int range_request_id) OVERRIDE;
-  // End of WebPluginDelegate implementation.
-
-  gfx::PluginWindowHandle windowed_handle() const { return windowed_handle_; }
-  bool IsWindowless() const { return windowless_; }
-  PluginInstance* instance() { return instance_.get(); }
-  gfx::Rect GetRect() const { return window_rect_; }
-  gfx::Rect GetClipRect() const { return clip_rect_; }
-
-  // Returns the path for the library implementing this plugin.
-  base::FilePath GetPluginPath();
-
-  // Returns a combination of PluginQuirks.
-  int GetQuirks() const { return quirks_; }
-
-  // Informs the plugin that the view it is in has gained or lost focus.
-  void SetContentAreaHasFocus(bool has_focus);
-
-#if defined(OS_WIN)
-  // Informs the plug-in that an IME has changed its status.
-  void ImeCompositionUpdated(const base::string16& text,
-                             const std::vector<int>& clauses,
-                             const std::vector<int>& target,
-                             int cursor_position);
-
-  // Informs the plugin that IME composition has completed./ If |text| is empty,
-  // IME was cancelled.
-  void ImeCompositionCompleted(const base::string16& text);
-
-  // Returns the IME status retrieved from a plug-in.
-  bool GetIMEStatus(int* input_type, gfx::Rect* caret_rect);
-#endif
-
-#if defined(OS_MACOSX) && !defined(USE_AURA)
-  // Informs the plugin that the geometry has changed, as with UpdateGeometry,
-  // but also includes the new buffer context for that new geometry.
-  void UpdateGeometryAndContext(const gfx::Rect& window_rect,
-                                const gfx::Rect& clip_rect,
-                                gfx::NativeDrawingContext context);
-  // Informs the delegate that the plugin called NPN_Invalidate*. Used as a
-  // trigger for Core Animation drawing.
-  void PluginDidInvalidate();
-  // Returns the delegate currently processing events.
-  static WebPluginDelegateImpl* GetActiveDelegate();
-  // Informs the plugin that the window it is in has gained or lost focus.
-  void SetWindowHasFocus(bool has_focus);
-  // Informs the plugin that its tab or window has been hidden or shown.
-  void SetContainerVisibility(bool is_visible);
-  // Informs the plugin that its containing window's frame has changed.
-  // Frames are in screen coordinates.
-  void WindowFrameChanged(const gfx::Rect& window_frame,
-                          const gfx::Rect& view_frame);
-  // Informs the plugin that IME composition has completed.
-  // If |text| is empty, IME was cancelled.
-  void ImeCompositionCompleted(const base::string16& text);
-  // Informs the delegate that the plugin set a Cocoa NSCursor.
-  void SetNSCursor(NSCursor* cursor);
-
-  // Indicates that the windowless plugins will draw directly to the window
-  // context instead of a buffer context.
-  void SetNoBufferContext();
-
-  // TODO(caryclark): This is a temporary workaround to allow the Darwin / Skia
-  // port to share code with the Darwin / CG port. Later, this will be removed
-  // and all callers will use the Paint defined above.
-  void CGPaint(CGContextRef context, const gfx::Rect& rect);
-#endif  // OS_MACOSX && !USE_AURA
-
-#if defined(USE_X11)
-  void SetWindowlessShmPixmap(XID shm_pixmap) {
-    windowless_shm_pixmap_ = shm_pixmap;
-  }
-#endif
-
- private:
-  friend class base::DeleteHelper<WebPluginDelegateImpl>;
-  friend class WebPluginDelegate;
-
-  explicit WebPluginDelegateImpl(PluginInstance* instance);
-  virtual ~WebPluginDelegateImpl();
-
-  // Called by Initialize() for platform-specific initialization.
-  // If this returns false, the plugin shouldn't be started--see Initialize().
-  bool PlatformInitialize();
-
-  // Called by DestroyInstance(), used for platform-specific destruction.
-  void PlatformDestroyInstance();
-
-  //--------------------------
-  // used for windowed plugins
-  void WindowedUpdateGeometry(const gfx::Rect& window_rect,
-                              const gfx::Rect& clip_rect);
-  // Create the native window.
-  // Returns true if the window is created (or already exists).
-  // Returns false if unable to create the window.
-  bool WindowedCreatePlugin();
-
-  // Destroy the native window.
-  void WindowedDestroyWindow();
-
-  // Reposition the native window to be in sync with the given geometry.
-  // Returns true if the native window has moved or been clipped differently.
-  bool WindowedReposition(const gfx::Rect& window_rect,
-                          const gfx::Rect& clip_rect);
-
-  // Tells the plugin about the current state of the window.
-  // See NPAPI NPP_SetWindow for more information.
-  void WindowedSetWindow();
-
-#if defined(OS_WIN)
-  // Registers the window class for our window
-  ATOM RegisterNativeWindowClass();
-
-  // Our WndProc functions.
-  static LRESULT CALLBACK WrapperWindowProc(
-      HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam);
-  static LRESULT CALLBACK NativeWndProc(
-      HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam);
-  static LRESULT CALLBACK FlashWindowlessWndProc(
-      HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam);
-  static LRESULT CALLBACK DummyWindowProc(
-      HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam);
-
-  // Used for throttling Flash messages.
-  static void ClearThrottleQueueForWindow(HWND window);
-  static void OnThrottleMessage();
-  static void ThrottleMessage(WNDPROC proc, HWND hwnd, UINT message,
-      WPARAM wParam, LPARAM lParam);
-#endif
-
-  //----------------------------
-  // used for windowless plugins
-  void WindowlessUpdateGeometry(const gfx::Rect& window_rect,
-                                const gfx::Rect& clip_rect);
-  void WindowlessPaint(gfx::NativeDrawingContext hdc, const gfx::Rect& rect);
-
-  // Tells the plugin about the current state of the window.
-  // See NPAPI NPP_SetWindow for more information.
-  void WindowlessSetWindow();
-
-  // Informs the plugin that it has gained or lost keyboard focus (on the Mac,
-  // this just means window first responder status).
-  void SetPluginHasFocus(bool focused);
-
-  // Handles the platform specific details of setting plugin focus. Returns
-  // false if the platform cancelled the focus tranfer.
-  bool PlatformSetPluginHasFocus(bool focused);
-
-  //-----------------------------------------
-  // used for windowed and windowless plugins
-
-  // Does platform-specific event handling. Arguments and return are identical
-  // to HandleInputEvent.
-  bool PlatformHandleInputEvent(const WebKit::WebInputEvent& event,
-                                WebCursor::CursorInfo* cursor_info);
-
-  // Closes down and destroys our plugin instance.
-  void DestroyInstance();
-
-
-  // used for windowed plugins
-  // Note: on Mac OS X, the only time the windowed handle is non-zero
-  // is the case of accelerated rendering, which uses a fake window handle to
-  // identify itself back to the browser. It still performs all of its
-  // work offscreen.
-  gfx::PluginWindowHandle windowed_handle_;
-  gfx::Rect windowed_last_pos_;
-
-  bool windowed_did_set_window_;
-
-  // used by windowed and windowless plugins
-  bool windowless_;
-
-  WebPlugin* plugin_;
-  scoped_refptr<PluginInstance> instance_;
-
-#if defined(OS_WIN)
-  // Original wndproc before we subclassed.
-  WNDPROC plugin_wnd_proc_;
-
-  // Used to throttle WM_USER+1 messages in Flash.
-  uint32 last_message_;
-  bool is_calling_wndproc;
-
-  // An IME emulator used by a windowless plug-in to retrieve IME data through
-  // IMM32 functions.
-  scoped_ptr<WebPluginIMEWin> plugin_ime_;
-#endif  // defined(OS_WIN)
-
-#if defined(USE_X11)
-  // The SHM pixmap for a windowless plugin.
-  XID windowless_shm_pixmap_;
-#endif
-
-#if defined(TOOLKIT_GTK)
-  // The pixmap we're drawing into, for a windowless plugin.
-  GdkPixmap* pixmap_;
-  double first_event_time_;
-
-  // On Linux some plugins assume that the GtkSocket container is in the same
-  // process. So we create a GtkPlug to plug into the browser's container, and
-  // a GtkSocket to hold the plugin. We then send the GtkPlug to the browser
-  // process.
-  GtkWidget* plug_;
-  GtkWidget* socket_;
-
-  // Ensure pixmap_ exists and is at least width by height pixels.
-  void EnsurePixmapAtLeastSize(int width, int height);
-#endif
-
-  NPWindow window_;
-  gfx::Rect window_rect_;
-  gfx::Rect clip_rect_;
-  int quirks_;
-
-#if defined(OS_WIN)
-  // Windowless plugins don't have keyboard focus causing issues with the
-  // plugin not receiving keyboard events if the plugin enters a modal
-  // loop like TrackPopupMenuEx or MessageBox, etc.
-  // This is a basic issue with windows activation and focus arising due to
-  // the fact that these windows are created by different threads. Activation
-  // and focus are thread specific states, and if the browser has focus,
-  // the plugin may not have focus.
-  // To fix a majority of these activation issues we create a dummy visible
-  // child window to which we set focus whenever the windowless plugin
-  // receives a WM_LBUTTONDOWN/WM_RBUTTONDOWN message via NPP_HandleEvent.
-
-  HWND dummy_window_for_activation_;
-  HWND dummy_window_parent_;
-  WNDPROC old_dummy_window_proc_;
-  bool CreateDummyWindowForActivation();
-
-  // Returns true if the event passed in needs to be tracked for a potential
-  // modal loop.
-  static bool ShouldTrackEventForModalLoops(NPEvent* event);
-
-  // The message filter hook procedure, which tracks modal loops entered by
-  // a plugin in the course of a NPP_HandleEvent call.
-  static LRESULT CALLBACK HandleEventMessageFilterHook(int code, WPARAM wParam,
-                                                       LPARAM lParam);
-
-  // TrackPopupMenu interceptor. Parameters are the same as the Win32 function
-  // TrackPopupMenu.
-  static BOOL WINAPI TrackPopupMenuPatch(HMENU menu, unsigned int flags, int x,
-                                         int y, int reserved, HWND window,
-                                         const RECT* rect);
-
-  // SetCursor interceptor for windowless plugins.
-  static HCURSOR WINAPI SetCursorPatch(HCURSOR cursor);
-
-  // RegEnumKeyExW interceptor.
-  static LONG WINAPI RegEnumKeyExWPatch(
-      HKEY key, DWORD index, LPWSTR name, LPDWORD name_size, LPDWORD reserved,
-      LPWSTR class_name, LPDWORD class_size, PFILETIME last_write_time);
-
-  // GetProcAddress intercepter for windowless plugins.
-  static FARPROC WINAPI GetProcAddressPatch(HMODULE module, LPCSTR name);
-
-  // The mouse hook proc which handles mouse capture in windowed plugins.
-  static LRESULT CALLBACK MouseHookProc(int code, WPARAM wParam,
-                                        LPARAM lParam);
-
-  // Calls SetCapture/ReleaseCapture based on the message type.
-  static void HandleCaptureForMessage(HWND window, UINT message);
-
-#elif defined(OS_MACOSX) && !defined(USE_AURA)
-  // Sets window_rect_ to |rect|
-  void SetPluginRect(const gfx::Rect& rect);
-  // Sets content_area_origin to |origin|
-  void SetContentAreaOrigin(const gfx::Point& origin);
-  // Updates everything that depends on the plugin's absolute screen location.
-  void PluginScreenLocationChanged();
-  // Updates anything that depends on plugin visibility.
-  void PluginVisibilityChanged();
-
-  // Starts an IME session.
-  void StartIme();
-
-  // Informs the browser about the updated accelerated drawing surface.
-  void UpdateAcceleratedSurface();
-
-  // Uses a CARenderer to draw the plug-in's layer in our OpenGL surface.
-  void DrawLayerInSurface();
-
-  bool use_buffer_context_;
-  CGContextRef buffer_context_;  // Weak ref.
-
-  CALayer* layer_;  // Used for CA drawing mode. Weak, retained by plug-in.
-  WebPluginAcceleratedSurface* surface_;  // Weak ref.
-  CARenderer* renderer_;  // Renders layer_ to surface_.
-  scoped_ptr<base::RepeatingTimer<WebPluginDelegateImpl> > redraw_timer_;
-
-  // The upper-left corner of the web content area in screen coordinates,
-  // relative to an upper-left (0,0).
-  gfx::Point content_area_origin_;
-
-  bool containing_window_has_focus_;
-  bool initial_window_focus_;
-  bool container_is_visible_;
-  bool have_called_set_window_;
-
-  gfx::Rect cached_clip_rect_;
-
-  bool ime_enabled_;
-  int keyup_ignore_count_;
-
-  scoped_ptr<ExternalDragTracker> external_drag_tracker_;
-#endif  // OS_MACOSX && !USE_AURA
-
-  // Called by the message filter hook when the plugin enters a modal loop.
-  void OnModalLoopEntered();
-
-  // Returns true if the message passed in corresponds to a user gesture.
-  static bool IsUserGesture(const WebKit::WebInputEvent& event);
-
-  // The url with which the plugin was instantiated.
-  std::string plugin_url_;
-
-#if defined(OS_WIN)
-  // Indicates the end of a user gesture period.
-  void OnUserGestureEnd();
-
-  // Handle to the message filter hook
-  HHOOK handle_event_message_filter_hook_;
-
-  // Event which is set when the plugin enters a modal loop in the course
-  // of a NPP_HandleEvent call.
-  HANDLE handle_event_pump_messages_event_;
-
-  // This flag indicates whether we started tracking a user gesture message.
-  bool user_gesture_message_posted_;
-
-  // Runnable Method Factory used to invoke the OnUserGestureEnd method
-  // asynchronously.
-  base::WeakPtrFactory<WebPluginDelegateImpl> user_gesture_msg_factory_;
-
-  // Handle to the mouse hook installed for certain windowed plugins like
-  // flash.
-  HHOOK mouse_hook_;
-#endif
-
-  // Holds the depth of the HandleEvent callstack.
-  int handle_event_depth_;
-
-  // Holds the current cursor set by the windowless plugin.
-  WebCursor current_windowless_cursor_;
-
-  // Set to true initially and indicates if this is the first npp_setwindow
-  // call received by the plugin.
-  bool first_set_window_call_;
-
-  // True if the plugin thinks it has keyboard focus
-  bool plugin_has_focus_;
-  // True if the plugin element has focus within the web content, regardless of
-  // whether its containing view currently has focus.
-  bool has_webkit_focus_;
-  // True if the containing view currently has focus.
-  // Initially set to true so that plugin focus still works in environments
-  // where SetContentAreaHasFocus is never called. See
-  // https://bugs.webkit.org/show_bug.cgi?id=46013 for details.
-  bool containing_view_has_focus_;
-
-  // True if NPP_New did not return an error.
-  bool creation_succeeded_;
-
-  DISALLOW_COPY_AND_ASSIGN(WebPluginDelegateImpl);
-};
-
-}  // namespace npapi
-}  // namespace webkit
-
-#endif  // WEBKIT_PLUGINS_NPAPI_WEBPLUGIN_DELEGATE_IMPL_H_