mirror of
https://bitbucket.org/chromiumembedded/cef
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a18491fbd5
- Glue now depends on WebCore_prebuild (and not WebCore). - WebCore depends on WebCore_prebuild. - libxml_config and libxslt_config projects are gone. - Initialize the global CommandLine object in ThreadHandlerUI(). - Changes to WebPluginDelegate. git-svn-id: https://chromiumembedded.googlecode.com/svn/trunk@8 5089003a-bbd8-11dd-ad1f-f1f9622dbc98
277 lines
11 KiB
C++
277 lines
11 KiB
C++
// Copyright (c) 2008 The Chromium Embedded Framework Authors.
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// Portions copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef _BROWSER_WEBPLUGIN_DELEGATE_IMPL_H
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#define _BROWSER_WEBPLUGIN_DELEGATE_IMPL_H
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#include <string>
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#include <list>
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#include "browser_plugin_lib.h"
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#include "base/file_path.h"
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#include "base/gfx/native_widget_types.h"
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#include "base/iat_patch.h"
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#include "base/ref_counted.h"
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#include "base/task.h"
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#include "third_party/npapi/bindings/npapi.h"
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#include "webkit/glue/webplugin_delegate.h"
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#include "webkit/glue/webcursor.h"
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namespace NPAPI {
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class BrowserPluginInstance;
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};
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// An implementation of WebPluginDelegate that proxies all calls to
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// the plugin process.
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class BrowserWebPluginDelegateImpl : public WebPluginDelegate {
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public:
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static BrowserWebPluginDelegateImpl* Create(const struct CefPluginInfo& plugin_info,
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const std::string& mime_type,
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gfx::NativeView containing_view);
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static bool IsPluginDelegateWindow(HWND window);
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static bool GetPluginNameFromWindow(HWND window, std::wstring *plugin_name);
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// Returns true if the window handle passed in is that of the dummy
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// activation window for windowless plugins.
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static bool IsDummyActivationWindow(HWND window);
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// WebPluginDelegate implementation
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virtual void PluginDestroyed();
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virtual bool Initialize(const GURL& url,
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char** argn,
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char** argv,
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int argc,
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WebPlugin* plugin,
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bool load_manually);
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virtual void UpdateGeometry(const gfx::Rect& window_rect,
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const gfx::Rect& clip_rect);
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virtual void Paint(HDC hdc, const gfx::Rect& rect);
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virtual void Print(HDC hdc);
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virtual void SetFocus(); // only called when windowless
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// only called when windowless
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virtual bool HandleEvent(NPEvent* event,
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WebCursor* cursor);
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virtual NPObject* GetPluginScriptableObject();
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virtual void DidFinishLoadWithReason(NPReason reason);
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virtual int GetProcessId();
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virtual void FlushGeometryUpdates() {
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}
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virtual void SendJavaScriptStream(const std::string& url,
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const std::wstring& result,
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bool success, bool notify_needed,
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int notify_data);
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virtual void DidReceiveManualResponse(const std::string& url,
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const std::string& mime_type,
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const std::string& headers,
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uint32 expected_length,
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uint32 last_modified);
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virtual void DidReceiveManualData(const char* buffer, int length);
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virtual void DidFinishManualLoading();
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virtual void DidManualLoadFail();
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virtual FilePath GetPluginPath();
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virtual void InstallMissingPlugin();
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virtual WebPluginResourceClient* CreateResourceClient(int resource_id,
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const std::string &url,
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bool notify_needed,
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void *notify_data,
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void* stream);
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virtual void URLRequestRouted(const std::string&url, bool notify_needed,
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void* notify_data);
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bool windowless() const { return windowless_ ; }
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gfx::Rect rect() const { return window_rect_; }
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gfx::Rect clip_rect() const { return clip_rect_; }
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enum PluginQuirks {
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PLUGIN_QUIRK_SETWINDOW_TWICE = 1,
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PLUGIN_QUIRK_THROTTLE_WM_USER_PLUS_ONE = 2,
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PLUGIN_QUIRK_DONT_CALL_WND_PROC_RECURSIVELY = 4,
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PLUGIN_QUIRK_DONT_SET_NULL_WINDOW_HANDLE_ON_DESTROY = 8,
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PLUGIN_QUIRK_DONT_ALLOW_MULTIPLE_INSTANCES = 16,
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PLUGIN_QUIRK_DIE_AFTER_UNLOAD = 32,
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PLUGIN_QUIRK_PATCH_TRACKPOPUP_MENU = 64,
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PLUGIN_QUIRK_PATCH_SETCURSOR = 128,
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PLUGIN_QUIRK_BLOCK_NONSTANDARD_GETURL_REQUESTS = 256,
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};
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int quirks() { return quirks_; }
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private:
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BrowserWebPluginDelegateImpl(gfx::NativeView containing_view,
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NPAPI::BrowserPluginInstance *instance);
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~BrowserWebPluginDelegateImpl();
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//--------------------------
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// used for windowed plugins
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void WindowedUpdateGeometry(const gfx::Rect& window_rect,
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const gfx::Rect& clip_rect);
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// Create the native window.
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// Returns true if the window is created (or already exists).
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// Returns false if unable to create the window.
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bool WindowedCreatePlugin();
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// Destroy the native window.
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void WindowedDestroyWindow();
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// Reposition the native window to be in sync with the given geometry.
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// Returns true if the native window has moved or been clipped differently.
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bool WindowedReposition(const gfx::Rect& window_rect,
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const gfx::Rect& clip_rect);
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// Tells the plugin about the current state of the window.
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// See NPAPI NPP_SetWindow for more information.
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void WindowedSetWindow();
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// Registers the window class for our window
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ATOM RegisterNativeWindowClass();
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// Our WndProc functions.
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static LRESULT CALLBACK DummyWindowProc(
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HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam);
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static LRESULT CALLBACK NativeWndProc(
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HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam);
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static LRESULT CALLBACK FlashWindowlessWndProc(
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HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam);
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// Used for throttling Flash messages.
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static void ClearThrottleQueueForWindow(HWND window);
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static void OnThrottleMessage();
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static void ThrottleMessage(WNDPROC proc, HWND hwnd, UINT message,
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WPARAM wParam, LPARAM lParam);
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//----------------------------
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// used for windowless plugins
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void WindowlessUpdateGeometry(const gfx::Rect& window_rect,
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const gfx::Rect& clip_rect);
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void WindowlessPaint(HDC hdc, const gfx::Rect& rect);
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// Tells the plugin about the current state of the window.
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// See NPAPI NPP_SetWindow for more information.
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void WindowlessSetWindow(bool force_set_window);
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//-----------------------------------------
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// used for windowed and windowless plugins
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NPAPI::BrowserPluginInstance* instance() { return instance_.get(); }
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// Closes down and destroys our plugin instance.
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void DestroyInstance();
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// used for windowed plugins
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HWND windowed_handle_;
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bool windowed_did_set_window_;
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gfx::Rect windowed_last_pos_;
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// this is an optimization to avoid calling SetWindow to the plugin
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// when it is not necessary. Initially, we need to call SetWindow,
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// and after that we only need to call it when the geometry changes.
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// use this flag to indicate whether we really need it or not.
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bool windowless_needs_set_window_;
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// used by windowed and windowless plugins
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bool windowless_;
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WebPlugin* plugin_;
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scoped_refptr<NPAPI::BrowserPluginInstance> instance_;
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// Original wndproc before we subclassed.
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WNDPROC plugin_wnd_proc_;
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// Used to throttle WM_USER+1 messages in Flash.
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uint32 last_message_;
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bool is_calling_wndproc;
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HWND parent_;
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NPWindow window_;
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gfx::Rect window_rect_;
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gfx::Rect clip_rect_;
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std::vector<gfx::Rect> cutout_rects_;
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int quirks_;
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// Windowless plugins don't have keyboard focus causing issues with the
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// plugin not receiving keyboard events if the plugin enters a modal
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// loop like TrackPopupMenuEx or MessageBox, etc.
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// This is a basic issue with windows activation and focus arising due to
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// the fact that these windows are created by different threads. Activation
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// and focus are thread specific states, and if the browser has focus,
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// the plugin may not have focus.
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// To fix a majority of these activation issues we create a dummy visible
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// child window to which we set focus whenever the windowless plugin
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// receives a WM_LBUTTONDOWN/WM_RBUTTONDOWN message via NPP_HandleEvent.
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HWND dummy_window_for_activation_;
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bool CreateDummyWindowForActivation();
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static std::list<MSG> throttle_queue_;
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// Returns true if the event passed in needs to be tracked for a potential
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// modal loop.
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static bool ShouldTrackEventForModalLoops(NPEvent* event);
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// The message filter hook procedure, which tracks modal loops entered by
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// a plugin in the course of a NPP_HandleEvent call.
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static LRESULT CALLBACK HandleEventMessageFilterHook(int code, WPARAM wParam,
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LPARAM lParam);
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// Called by the message filter hook when the plugin enters a modal loop.
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void OnModalLoopEntered();
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// Returns true if the message passed in corresponds to a user gesture.
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static bool IsUserGestureMessage(unsigned int message);
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// Indicates the end of a user gesture period.
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void OnUserGestureEnd();
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// Handle to the message filter hook
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HHOOK handle_event_message_filter_hook_;
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// The current instance of the plugin which entered the modal loop.
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static BrowserWebPluginDelegateImpl* current_plugin_instance_;
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// Event which is set when the plugin enters a modal loop in the course
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// of a NPP_HandleEvent call.
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HANDLE handle_event_pump_messages_event_;
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// Holds the depth of the HandleEvent callstack.
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int handle_event_depth_;
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// This flag indicates whether we started tracking a user gesture message.
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bool user_gesture_message_posted_;
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// Runnable Method Factory used to invoke the OnUserGestureEnd method
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// asynchronously.
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ScopedRunnableMethodFactory<BrowserWebPluginDelegateImpl> user_gesture_msg_factory_;
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// The url with which the plugin was instantiated.
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std::string plugin_url_;
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// The plugin module handle.
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HMODULE plugin_module_handle_;
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// Helper object for patching the TrackPopupMenu API
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static iat_patch::IATPatchFunction iat_patch_track_popup_menu_;
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// TrackPopupMenu interceptor. Parameters are the same as the Win32 function
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// TrackPopupMenu.
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static BOOL WINAPI TrackPopupMenuPatch(HMENU menu, unsigned int flags, int x,
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int y, int reserved, HWND window,
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const RECT* rect);
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// SetCursor interceptor for windowless plugins.
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static HCURSOR WINAPI SetCursorPatch(HCURSOR cursor);
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// Helper object for patching the SetCursor API
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static iat_patch::IATPatchFunction iat_patch_set_cursor_;
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// Holds the current cursor set by the windowless plugin.
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WebCursor current_windowless_cursor_;
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DISALLOW_EVIL_CONSTRUCTORS(BrowserWebPluginDelegateImpl);
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};
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#endif // #ifndef _BROWSER_WEBPLUGIN_DELEGATE_IMPL_H
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