blob: 99092e4ba99f2a870b097f51a661c7778080d6f5 [file] [log] [blame]
// Copyright 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.
#include "third_party/WebKit/public/web/WebPlugin.h"
#include <memory>
#include "base/macros.h"
#include "base/memory/weak_ptr.h"
#include "base/sequenced_task_runner_helpers.h"
#include "content/renderer/mouse_lock_dispatcher.h"
#include "content/renderer/render_view_impl.h"
#include "third_party/WebKit/public/web/WebCompositionUnderline.h"
#include "third_party/WebKit/public/web/WebDragStatus.h"
#include "third_party/WebKit/public/web/WebNode.h"
#include "third_party/WebKit/public/web/WebWidget.h"
struct BrowserPluginHostMsg_ResizeGuest_Params;
struct FrameMsg_BuffersSwapped_Params;
namespace cc {
class SurfaceId;
struct SurfaceSequence;
namespace content {
class BrowserPluginDelegate;
class BrowserPluginManager;
class ChildFrameCompositingHelper;
class CONTENT_EXPORT BrowserPlugin :
NON_EXPORTED_BASE(public blink::WebPlugin),
public MouseLockDispatcher::LockTarget {
static BrowserPlugin* GetFromNode(blink::WebNode& node);
int render_frame_routing_id() const { return render_frame_routing_id_; }
int browser_plugin_instance_id() const { return browser_plugin_instance_id_; }
bool attached() const { return attached_; }
bool OnMessageReceived(const IPC::Message& msg);
// Update Browser Plugin's DOM Node attribute |attribute_name| with the value
// |attribute_value|.
void UpdateDOMAttribute(const std::string& attribute_name,
const base::string16& attribute_value);
// Returns whether the guest process has crashed.
bool guest_crashed() const { return guest_crashed_; }
// Informs the guest of an updated focus state.
void UpdateGuestFocusState(blink::WebFocusType focus_type);
// Indicates whether the guest should be focused.
bool ShouldGuestBeFocused() const;
// A request to enable hardware compositing.
void EnableCompositing(bool enable);
// Called by CompositingHelper to send current SurfaceSequence to browser.
void SendSatisfySequence(const cc::SurfaceSequence& sequence);
// Provided that a guest instance ID has been allocated, this method attaches
// this BrowserPlugin instance to that guest.
void Attach();
// This method detaches this BrowserPlugin instance from the guest that it's
// currently attached to, if any.
void Detach();
// Notify the plugin about a compositor commit so that frame ACKs could be
// sent, if needed.
void DidCommitCompositorFrame();
// Returns whether a message should be forwarded to BrowserPlugin.
static bool ShouldForwardToBrowserPlugin(const IPC::Message& message);
// blink::WebPlugin implementation.
blink::WebPluginContainer* container() const override;
bool initialize(blink::WebPluginContainer* container) override;
void destroy() override;
v8::Local<v8::Object> v8ScriptableObject(v8::Isolate* isolate) override;
bool supportsKeyboardFocus() const override;
bool supportsEditCommands() const override;
bool supportsInputMethod() const override;
bool canProcessDrag() const override;
void updateAllLifecyclePhases() override {}
void paint(blink::WebCanvas* canvas, const blink::WebRect& rect) override {}
void updateGeometry(const blink::WebRect& window_rect,
const blink::WebRect& clip_rect,
const blink::WebRect& unobscured_rect,
const blink::WebVector<blink::WebRect>& cut_outs_rects,
bool is_visible) override;
void updateFocus(bool focused, blink::WebFocusType focus_type) override;
void updateVisibility(bool visible) override;
blink::WebInputEventResult handleInputEvent(
const blink::WebInputEvent& event,
blink::WebCursorInfo& cursor_info) override;
bool handleDragStatusUpdate(blink::WebDragStatus drag_status,
const blink::WebDragData& drag_data,
blink::WebDragOperationsMask mask,
const blink::WebPoint& position,
const blink::WebPoint& screen) override;
void didReceiveResponse(const blink::WebURLResponse& response) override;
void didReceiveData(const char* data, int data_length) override;
void didFinishLoading() override;
void didFailLoading(const blink::WebURLError& error) override;
bool executeEditCommand(const blink::WebString& name) override;
bool executeEditCommand(const blink::WebString& name,
const blink::WebString& value) override;
bool setComposition(
const blink::WebString& text,
const blink::WebVector<blink::WebCompositionUnderline>& underlines,
int selectionStart,
int selectionEnd) override;
bool confirmComposition(
const blink::WebString& text,
blink::WebWidget::ConfirmCompositionBehavior selectionBehavior) override;
void extendSelectionAndDelete(int before, int after) override;
// MouseLockDispatcher::LockTarget implementation.
void OnLockMouseACK(bool succeeded) override;
void OnMouseLockLost() override;
bool HandleMouseLockedInputEvent(const blink::WebMouseEvent& event) override;
friend class base::DeleteHelper<BrowserPlugin>;
// Only the manager is allowed to create a BrowserPlugin.
friend class BrowserPluginManager;
// A BrowserPlugin object is a controller that represents an instance of a
// browser plugin within the embedder renderer process. Once a BrowserPlugin
// does an initial navigation or is attached to a newly created guest, it
// acquires a browser_plugin_instance_id as well. The guest instance ID
// uniquely identifies a guest WebContents that's hosted by this
// BrowserPlugin.
BrowserPlugin(RenderFrame* render_frame,
const base::WeakPtr<BrowserPluginDelegate>& delegate);
~BrowserPlugin() override;
gfx::Rect view_rect() const { return view_rect_; }
void UpdateInternalInstanceId();
// IPC message handlers.
// Please keep in alphabetical order.
void OnAdvanceFocus(int instance_id, bool reverse);
void OnGuestGone(int instance_id);
void OnSetChildFrameSurface(int instance_id,
const cc::SurfaceId& surface_id,
const gfx::Size& frame_size,
float scale_factor,
const cc::SurfaceSequence& sequence);
void OnSetContentsOpaque(int instance_id, bool opaque);
void OnSetCursor(int instance_id, const WebCursor& cursor);
void OnSetMouseLock(int instance_id, bool enable);
void OnSetTooltipText(int browser_plugin_instance_id,
const base::string16& tooltip_text);
void OnShouldAcceptTouchEvents(int instance_id, bool accept);
// This indicates whether this BrowserPlugin has been attached to a
// WebContents and is ready to receive IPCs.
bool attached_;
// We cache the |render_frame_routing_id| because we need it on destruction.
// If the RenderFrame is destroyed before the BrowserPlugin is destroyed
// then we will attempt to access a nullptr.
const int render_frame_routing_id_;
blink::WebPluginContainer* container_;
// The plugin's rect in css pixels.
gfx::Rect view_rect_;
bool guest_crashed_;
bool plugin_focused_;
// Tracks the visibility of the browser plugin regardless of the whole
// embedder RenderView's visibility.
bool visible_;
WebCursor cursor_;
bool mouse_locked_;
// This indicates that the BrowserPlugin has a geometry.
bool ready_;
// Used for HW compositing.
scoped_refptr<ChildFrameCompositingHelper> compositing_helper_;
// URL for the embedder frame.
int browser_plugin_instance_id_;
std::vector<EditCommand> edit_commands_;
// We call lifetime managing methods on |delegate_|, but we do not directly
// own this. The delegate destroys itself.
base::WeakPtr<BrowserPluginDelegate> delegate_;
// Weak factory used in v8 |MakeWeak| callback, since the v8 callback might
// get called after BrowserPlugin has been destroyed.
base::WeakPtrFactory<BrowserPlugin> weak_ptr_factory_;
} // namespace content