blob: a3482801cacd9b6dbdb8943e07bf20c174cd19d4 [file] [log] [blame]
// 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.
#include <stddef.h>
#include <stdint.h>
#include <list>
#include <memory>
#include <set>
#include <string>
#include <utility>
#include <vector>
#include "base/callback.h"
#include "base/compiler_specific.h"
#include "base/macros.h"
#include "base/memory/ref_counted.h"
#include "base/memory/weak_ptr.h"
#include "base/optional.h"
#include "base/strings/string16.h"
#include "build/build_config.h"
#include "cc/layers/content_layer_client.h"
#include "cc/layers/layer.h"
#include "cc/layers/texture_layer_client.h"
#include "cc/paint/paint_canvas.h"
#include "components/viz/common/resources/transferable_resource.h"
#include "content/common/content_export.h"
#include "content/public/renderer/pepper_plugin_instance.h"
#include "content/public/renderer/plugin_instance_throttler.h"
#include "content/public/renderer/render_frame.h"
#include "content/public/renderer/render_frame_observer.h"
#include "content/renderer/mouse_lock_dispatcher.h"
#include "gin/handle.h"
#include "ppapi/c/dev/pp_cursor_type_dev.h"
#include "ppapi/c/dev/ppp_printing_dev.h"
#include "ppapi/c/dev/ppp_text_input_dev.h"
#include "ppapi/c/pp_completion_callback.h"
#include "ppapi/c/pp_instance.h"
#include "ppapi/c/pp_time.h"
#include "ppapi/c/pp_var.h"
#include "ppapi/c/ppb_audio_config.h"
#include "ppapi/c/ppb_gamepad.h"
#include "ppapi/c/ppb_input_event.h"
#include "ppapi/c/ppp_graphics_3d.h"
#include "ppapi/c/ppp_input_event.h"
#include "ppapi/c/ppp_mouse_lock.h"
#include "ppapi/c/private/ppp_find_private.h"
#include "ppapi/c/private/ppp_instance_private.h"
#include "ppapi/c/private/ppp_pdf.h"
#include "ppapi/shared_impl/ppb_instance_shared.h"
#include "ppapi/shared_impl/ppb_view_shared.h"
#include "ppapi/shared_impl/singleton_resource_id.h"
#include "ppapi/shared_impl/tracked_callback.h"
#include "ppapi/thunk/ppb_gamepad_api.h"
#include "ppapi/thunk/resource_creation_api.h"
#include "third_party/blink/public/platform/web_string.h"
#include "third_party/blink/public/platform/web_url_response.h"
#include "third_party/blink/public/web/web_associated_url_loader_client.h"
#include "third_party/blink/public/web/web_plugin.h"
#include "ui/accessibility/ax_mode.h"
#include "ui/base/ime/text_input_type.h"
#include "ui/gfx/geometry/rect.h"
#include "url/gurl.h"
#include "v8/include/v8.h"
struct PP_Point;
namespace blink {
class WebCoalescedInputEvent;
class WebInputEvent;
class WebMouseEvent;
class WebPluginContainer;
class WebURLResponse;
struct WebImeTextSpan;
struct WebCursorInfo;
struct WebURLError;
struct WebPrintParams;
} // namespace blink
namespace cc {
class TextureLayer;
namespace gfx {
class Range;
class Rect;
namespace ppapi {
class Resource;
struct InputEventData;
struct PPP_Instance_Combined;
struct URLResponseInfoData;
class ScopedPPVar;
namespace printing {
class MetafileSkia;
namespace content {
class FullscreenContainer;
class MessageChannel;
class PepperAudioController;
class PepperGraphics2DHost;
class PluginInstanceThrottlerImpl;
class PluginModule;
class PluginObject;
class PPB_Graphics3D_Impl;
class RenderFrameImpl;
// Represents one time a plugin appears on one web page.
// Note: to get from a PP_Instance to a PepperPluginInstance*, use the
// ResourceTracker.
class CONTENT_EXPORT PepperPluginInstanceImpl
: public base::RefCounted<PepperPluginInstanceImpl>,
public PepperPluginInstance,
public ppapi::PPB_Instance_Shared,
public cc::TextureLayerClient,
public RenderFrameObserver,
public PluginInstanceThrottler::Observer {
// Create and return a PepperPluginInstanceImpl object which supports the most
// recent version of PPP_Instance possible by querying the given
// get_plugin_interface function. If the plugin does not support any valid
// PPP_Instance interface, returns NULL.
static PepperPluginInstanceImpl* Create(RenderFrameImpl* render_frame,
PluginModule* module,
blink::WebPluginContainer* container,
const GURL& plugin_url);
// Return the PepperPluginInstanceImpl for the given |instance_id|. Will
// return the instance even if it is in the process of being deleted.
// Currently only used in tests.
static PepperPluginInstanceImpl* GetForTesting(PP_Instance instance_id);
RenderFrameImpl* render_frame() const { return render_frame_; }
PluginModule* module() const { return module_.get(); }
blink::WebPluginContainer* container() const { return container_; }
PluginInstanceThrottlerImpl* throttler() const { return throttler_.get(); }
// Returns the PP_Instance uniquely identifying this instance. Guaranteed
// nonzero.
PP_Instance pp_instance() const { return pp_instance_; }
ppapi::thunk::ResourceCreationAPI& resource_creation() {
return *resource_creation_.get();
MessageChannel* message_channel() { return message_channel_; }
v8::Local<v8::Object> GetMessageChannelObject();
// Called when |message_channel_| is destroyed as it may be destroyed prior to
// the plugin being destroyed.
void MessageChannelDestroyed();
// Return the v8 context for the frame that the plugin is contained in. Care
// should be taken to use the correct context for plugin<->JS interactions.
// In cases where JS calls into the plugin, the caller's context should
// typically be used. When calling from the plugin into JS, this context
// should typically used.
v8::Local<v8::Context> GetMainWorldContext();
// Does some pre-destructor cleanup on the instance. This is necessary
// because some cleanup depends on the plugin instance still existing (like
// calling the plugin's DidDestroy function). This function is called from
// the WebPlugin implementation when WebKit is about to remove the plugin.
void Delete();
// Returns true if Delete() has been called on this object.
bool is_deleted() const;
GURL document_url() const { return document_url_; }
// Paints the current backing store to the web page.
void Paint(cc::PaintCanvas* canvas,
const gfx::Rect& plugin_rect,
const gfx::Rect& paint_rect);
// Schedules a paint of the page for the given region. The coordinates are
// relative to the top-left of the plugin. This does nothing if the plugin
// has not yet been positioned. You can supply an empty gfx::Rect() to
// invalidate the entire plugin.
void InvalidateRect(const gfx::Rect& rect);
// Schedules a scroll of the plugin. This uses optimized scrolling only for
// full-frame plugins, as otherwise there could be other elements on top. The
// slow path can also be triggered if there is an overlapping frame.
void ScrollRect(int dx, int dy, const gfx::Rect& rect);
// Commit the output to the screen.
void CommitTransferableResource(const viz::TransferableResource& resource);
// Passes the committed texture to |texture_layer_| and marks it as in use.
void PassCommittedTextureToTextureLayer();
// Callback when the compositor is finished consuming the committed texture.
void FinishedConsumingCommittedTexture(
const viz::TransferableResource& resource,
scoped_refptr<PPB_Graphics3D_Impl> graphics_3d,
const gpu::SyncToken& sync_token,
bool is_lost);
// Called when the out-of-process plugin implementing this instance crashed.
void InstanceCrashed();
// PPB_Instance and PPB_Instance_Private implementation.
bool full_frame() const { return full_frame_; }
const ppapi::ViewData& view_data() const { return view_data_; }
// PPP_Instance and PPP_Instance_Private.
bool Initialize(const std::vector<std::string>& arg_names,
const std::vector<std::string>& arg_values,
bool full_frame,
std::unique_ptr<PluginInstanceThrottlerImpl> throttler);
bool HandleDocumentLoad(const blink::WebURLResponse& response);
bool HandleCoalescedInputEvent(const blink::WebCoalescedInputEvent& event,
blink::WebCursorInfo* cursor_info);
bool HandleInputEvent(const blink::WebInputEvent& event,
blink::WebCursorInfo* cursor_info);
PP_Var GetInstanceObject(v8::Isolate* isolate);
void ViewChanged(const gfx::Rect& window,
const gfx::Rect& clip,
const gfx::Rect& unobscured);
// Handlers for composition events.
bool HandleCompositionStart(const base::string16& text);
bool HandleCompositionUpdate(
const base::string16& text,
const std::vector<blink::WebImeTextSpan>& ime_text_spans,
int selection_start,
int selection_end);
bool HandleCompositionEnd(const base::string16& text);
bool HandleTextInput(const base::string16& text);
// Gets the current text input status.
ui::TextInputType text_input_type() const { return text_input_type_; }
gfx::Rect GetCaretBounds() const;
bool IsPluginAcceptingCompositionEvents() const;
void GetSurroundingText(base::string16* text, gfx::Range* range) const;
// Notifications about focus changes, see has_webkit_focus_ below.
void SetWebKitFocus(bool has_focus);
void SetContentAreaFocus(bool has_focus);
// Notification about page visibility. The default is "visible".
void PageVisibilityChanged(bool is_visible);
// Notifications that the view has started painting. This message is used to
// send Flush callbacks to the plugin for Graphics2D/3D.
void ViewInitiatedPaint();
// Tracks all live PluginObjects.
void AddPluginObject(PluginObject* plugin_object);
void RemovePluginObject(PluginObject* plugin_object);
base::string16 GetSelectedText(bool html);
base::string16 GetLinkAtPosition(const gfx::Point& point);
void RequestSurroundingText(size_t desired_number_of_characters);
bool StartFind(const std::string& search_text,
bool case_sensitive,
int identifier);
void SelectFindResult(bool forward, int identifier);
void StopFind();
bool SupportsPrintInterface();
int PrintBegin(const blink::WebPrintParams& print_params);
void PrintPage(int page_number, cc::PaintCanvas* canvas);
void PrintEnd();
bool GetPrintPresetOptionsFromDocument(
blink::WebPrintPresetOptions* preset_options);
bool CanRotateView();
void RotateView(blink::WebPlugin::RotationType type);
// There are 2 implementations of the fullscreen interface
// PPB_FlashFullscreen is used by Pepper Flash.
// PPB_Fullscreen is intended for other applications including NaCl.
// The two interface are mutually exclusive.
// Implementation of PPB_FlashFullscreen.
// Because going to fullscreen is asynchronous (but going out is not), there
// are 3 states:
// - normal : fullscreen_container_ == NULL
// flash_fullscreen_ == false
// - fullscreen pending: fullscreen_container_ != NULL
// flash_fullscreen_ == false
// - fullscreen : fullscreen_container_ != NULL
// flash_fullscreen_ == true
// In normal state, events come from webkit and painting goes back to it.
// In fullscreen state, events come from the fullscreen container, and
// painting goes back to it.
// In pending state, events from webkit are ignored, and as soon as we
// receive events from the fullscreen container, we go to the fullscreen
// state.
bool FlashIsFullscreenOrPending();
// Updates |flash_fullscreen_| and sends focus change notification if
// necessary.
void UpdateFlashFullscreenState(bool flash_fullscreen);
FullscreenContainer* fullscreen_container() const {
return fullscreen_container_;
// Implementation of PPB_Fullscreen.
// Because going to/from fullscreen is asynchronous, there are 4 states:
// - normal : desired_fullscreen_state_ == false
// view_data_.is_fullscreen == false
// - fullscreen pending: desired_fullscreen_state_ == true
// view_data_.is_fullscreen == false
// - fullscreen : desired_fullscreen_state_ == true
// view_data_.is_fullscreen == true
// - normal pending : desired_fullscreen_state_ = false
// view_data_.is_fullscreen = true
bool IsFullscreenOrPending();
bool flash_fullscreen() const { return flash_fullscreen_; }
// Switches between fullscreen and normal mode. The transition is
// asynchronous. WebKit will trigger corresponding ViewChanged calls. Returns
// true on success, false on failure (e.g. trying to enter fullscreen without
// user activation or trying to set fullscreen when already in fullscreen
// mode).
bool SetFullscreen(bool fullscreen);
// Send the message on to the plugin.
void HandleMessage(ppapi::ScopedPPVar message);
// Send the message synchronously to the plugin, and get a result. Returns
// true if the plugin handled the message, false if it didn't. The plugin
// won't handle the message if it has not registered a PPP_MessageHandler.
bool HandleBlockingMessage(ppapi::ScopedPPVar message,
ppapi::ScopedPPVar* result);
// Returns true if the plugin has transient user activation.
bool HasTransientUserActivation() const;
// A mouse lock request was pending and this reports success or failure.
void OnLockMouseACK(bool succeeded);
// A mouse lock was in place, but has been lost.
void OnMouseLockLost();
// A mouse lock is enabled and mouse events are being delivered.
void HandleMouseLockedInputEvent(const blink::WebMouseEvent& event);
// Simulates an input event to the plugin by passing it down to WebKit,
// which sends it back up to the plugin as if it came from the user.
void SimulateInputEvent(const ppapi::InputEventData& input_event);
// Simulates an IME event at the level of RenderView which sends it back up to
// the plugin as if it came from the user.
bool SimulateIMEEvent(const ppapi::InputEventData& input_event);
void SimulateImeSetCompositionEvent(const ppapi::InputEventData& input_event);
// The document loader is valid when the plugin is "full-frame" and in this
// case is non-NULL as long as the corresponding loader resource is alive.
// This pointer is non-owning, so the loader must use set_document_loader to
// clear itself when it is destroyed.
blink::WebAssociatedURLLoaderClient* document_loader() const {
return document_loader_;
void set_document_loader(blink::WebAssociatedURLLoaderClient* loader) {
document_loader_ = loader;
void SetGraphics2DTransform(const float& scale,
const gfx::PointF& translation);
// PluginInstance implementation
RenderFrame* GetRenderFrame() override;
blink::WebPluginContainer* GetContainer() override;
v8::Isolate* GetIsolate() override;
ppapi::VarTracker* GetVarTracker() override;
const GURL& GetPluginURL() override;
base::FilePath GetModulePath() override;
PP_Resource CreateImage(gfx::ImageSkia* source_image, float scale) override;
PP_ExternalPluginResult SwitchToOutOfProcessProxy(
const base::FilePath& file_path,
ppapi::PpapiPermissions permissions,
const IPC::ChannelHandle& channel_handle,
base::ProcessId plugin_pid,
int plugin_child_id) override;
void SetAlwaysOnTop(bool on_top) override;
bool IsFullPagePlugin() override;
bool FlashSetFullscreen(bool fullscreen, bool delay_report) override;
bool IsRectTopmost(const gfx::Rect& rect) override;
int32_t Navigate(const ppapi::URLRequestInfoData& request,
const char* target,
bool from_user_action) override;
int MakePendingFileRefRendererHost(const base::FilePath& path) override;
void SetEmbedProperty(PP_Var key, PP_Var value) override;
void SetSelectedText(const base::string16& selected_text) override;
void SetLinkUnderCursor(const std::string& url) override;
void SetTextInputType(ui::TextInputType type) override;
void PostMessageToJavaScript(PP_Var message) override;
void SetCaretPosition(const gfx::PointF& position) override;
void MoveRangeSelectionExtent(const gfx::PointF& extent) override;
void SetSelectionBounds(const gfx::PointF& base,
const gfx::PointF& extent) override;
bool CanEditText() override;
bool HasEditableText() override;
void ReplaceSelection(const std::string& text) override;
void SelectAll() override;
bool CanUndo() override;
bool CanRedo() override;
void Undo() override;
void Redo() override;
void HandleAccessibilityAction(
const PP_PdfAccessibilityActionData& action_data) override;
// PPB_Instance_API implementation.
PP_Bool BindGraphics(PP_Instance instance, PP_Resource device) override;
PP_Bool IsFullFrame(PP_Instance instance) override;
const ppapi::ViewData* GetViewData(PP_Instance instance) override;
PP_Bool FlashIsFullscreen(PP_Instance instance) override;
PP_Var GetWindowObject(PP_Instance instance) override;
PP_Var GetOwnerElementObject(PP_Instance instance) override;
PP_Var ExecuteScript(PP_Instance instance,
PP_Var script,
PP_Var* exception) override;
uint32_t GetAudioHardwareOutputSampleRate(PP_Instance instance) override;
uint32_t GetAudioHardwareOutputBufferSize(PP_Instance instance) override;
PP_Var GetDefaultCharSet(PP_Instance instance) override;
void SetPluginToHandleFindRequests(PP_Instance) override;
void NumberOfFindResultsChanged(PP_Instance instance,
int32_t total,
PP_Bool final_result) override;
void SelectedFindResultChanged(PP_Instance instance, int32_t index) override;
void SetTickmarks(PP_Instance instance,
const PP_Rect* tickmarks,
uint32_t count) override;
PP_Bool IsFullscreen(PP_Instance instance) override;
PP_Bool SetFullscreen(PP_Instance instance, PP_Bool fullscreen) override;
PP_Bool GetScreenSize(PP_Instance instance, PP_Size* size) override;
ppapi::Resource* GetSingletonResource(PP_Instance instance,
ppapi::SingletonResourceID id) override;
int32_t RequestInputEvents(PP_Instance instance,
uint32_t event_classes) override;
int32_t RequestFilteringInputEvents(PP_Instance instance,
uint32_t event_classes) override;
void ClearInputEventRequest(PP_Instance instance,
uint32_t event_classes) override;
void PostMessage(PP_Instance instance, PP_Var message) override;
int32_t RegisterMessageHandler(PP_Instance instance,
void* user_data,
const PPP_MessageHandler_0_2* handler,
PP_Resource message_loop) override;
void UnregisterMessageHandler(PP_Instance instance) override;
PP_Bool SetCursor(PP_Instance instance,
PP_MouseCursor_Type type,
PP_Resource image,
const PP_Point* hot_spot) override;
int32_t LockMouse(PP_Instance instance,
scoped_refptr<ppapi::TrackedCallback> callback) override;
void UnlockMouse(PP_Instance instance) override;
void SetTextInputType(PP_Instance instance, PP_TextInput_Type type) override;
void UpdateCaretPosition(PP_Instance instance,
const PP_Rect& caret,
const PP_Rect& bounding_box) override;
void CancelCompositionText(PP_Instance instance) override;
void SelectionChanged(PP_Instance instance) override;
void UpdateSurroundingText(PP_Instance instance,
const char* text,
uint32_t caret,
uint32_t anchor) override;
PP_Var ResolveRelativeToDocument(PP_Instance instance,
PP_Var relative,
PP_URLComponents_Dev* components) override;
PP_Bool DocumentCanRequest(PP_Instance instance, PP_Var url) override;
PP_Bool DocumentCanAccessDocument(PP_Instance instance,
PP_Instance target) override;
PP_Var GetDocumentURL(PP_Instance instance,
PP_URLComponents_Dev* components) override;
PP_Var GetPluginInstanceURL(PP_Instance instance,
PP_URLComponents_Dev* components) override;
PP_Var GetPluginReferrerURL(PP_Instance instance,
PP_URLComponents_Dev* components) override;
// Reset this instance as proxied. Assigns the instance a new module, resets
// cached interfaces to point to the out-of-process proxy and re-sends
// DidCreate, DidChangeView, and HandleDocumentLoad (if necessary).
// This should be used only when switching an in-process instance to an
// external out-of-process instance.
PP_ExternalPluginResult ResetAsProxied(scoped_refptr<PluginModule> module);
// Checks whether this is a valid instance of the given module. After calling
// ResetAsProxied above, a NaCl plugin instance's module changes, so external
// hosts won't recognize it as a valid instance of the original module. This
// method fixes that be checking that either module_ or original_module_ match
// the given module.
bool IsValidInstanceOf(PluginModule* module);
// cc::TextureLayerClient implementation.
bool PrepareTransferableResource(
cc::SharedBitmapIdRegistrar* bitmap_registrar,
viz::TransferableResource* transferable_resource,
std::unique_ptr<viz::SingleReleaseCallback>* release_callback) override;
// RenderFrameObserver
void AccessibilityModeChanged(const ui::AXMode& mode) override;
void OnDestruct() override;
// PluginInstanceThrottler::Observer
void OnThrottleStateChange() override;
void OnHiddenForPlaceholder(bool hidden) override;
PepperAudioController& audio_controller() {
return *audio_controller_;
// Should be used only for logging.
bool is_flash_plugin() const { return is_flash_plugin_; }
friend class base::RefCounted<PepperPluginInstanceImpl>;
friend class PpapiPluginInstanceTest;
friend class PpapiUnittest;
// Delete should be called by the WebPlugin before this destructor.
~PepperPluginInstanceImpl() override;
// Class to record document load notifications and play them back once the
// real document loader becomes available. Used only by external instances.
class ExternalDocumentLoader : public blink::WebAssociatedURLLoaderClient {
~ExternalDocumentLoader() override;
void ReplayReceivedData(WebAssociatedURLLoaderClient* document_loader);
// blink::WebAssociatedURLLoaderClient implementation.
void DidReceiveData(const char* data, int data_length) override;
void DidFinishLoading() override;
void DidFail(const blink::WebURLError& error) override;
std::list<std::string> data_;
bool finished_loading_;
std::unique_ptr<blink::WebURLError> error_;
// Implements PPB_Gamepad_API. This is just to avoid having an excessive
// number of interfaces implemented by PepperPluginInstanceImpl.
class GamepadImpl : public ppapi::thunk::PPB_Gamepad_API,
public ppapi::Resource {
// Resource implementation.
ppapi::thunk::PPB_Gamepad_API* AsPPB_Gamepad_API() override;
void Sample(PP_Instance instance, PP_GamepadsSampleData* data) override;
~GamepadImpl() override;
// See the static Create functions above for creating PepperPluginInstanceImpl
// objects. This constructor is private so that we can hide the
// PPP_Instance_Combined details while still having 1 constructor to maintain
// for member initialization.
PepperPluginInstanceImpl(RenderFrameImpl* render_frame,
PluginModule* module,
ppapi::PPP_Instance_Combined* instance_interface,
blink::WebPluginContainer* container,
const GURL& plugin_url);
bool LoadFindInterface();
bool LoadInputEventInterface();
bool LoadMouseLockInterface();
bool LoadPdfInterface();
bool LoadPrintInterface();
bool LoadPrivateInterface();
bool LoadTextInputInterface();
// Update any transforms that should be applied to the texture layer.
void UpdateLayerTransform();
// Determines if we think the plugin has focus, both content area and webkit
// (see has_webkit_focus_ below).
bool PluginHasFocus() const;
void SendFocusChangeNotification();
void UpdateTouchEventRequest();
void UpdateWheelEventRequest();
void ScheduleAsyncDidChangeView();
void SendAsyncDidChangeView();
void SendDidChangeView();
// Reports the current plugin geometry to the plugin by calling
// DidChangeView.
void ReportGeometry();
// Queries the plugin for supported print formats and sets |format| to the
// best format to use. Returns false if the plugin does not support any
// print format that we can handle (we can handle only PDF).
bool GetPreferredPrintOutputFormat(PP_PrintOutputFormat_Dev* format,
const blink::WebPrintParams& params);
// Updates the layer for compositing. This creates a layer and attaches to the
// container if:
// - we have a bound Graphics3D and the Graphics3D has a texture, OR
// we have a bound Graphics2D and are using software compositing
// - we are not in Flash full-screen mode (or transitioning to it)
// Otherwise it destroys the layer.
// It does either operation lazily.
// force_creation: Force UpdateLayer() to recreate the layer and attaches
// to the container. Set to true if the bound device has been changed.
void UpdateLayer(bool force_creation);
void DoSetCursor(std::unique_ptr<blink::WebCursorInfo> cursor);
// Internal helper functions for HandleCompositionXXX().
bool SendCompositionEventToPlugin(PP_InputEvent_Type type,
const base::string16& text);
bool SendCompositionEventWithImeTextSpanInformationToPlugin(
PP_InputEvent_Type type,
const base::string16& text,
const std::vector<blink::WebImeTextSpan>& ime_text_spans,
int selection_start,
int selection_end);
// Internal helper function for XXXInputEvents().
void RequestInputEventsHelper(uint32_t event_classes);
// Checks if the security origin of the document containing this instance can
// assess the security origin of the main frame document.
bool CanAccessMainFrame() const;
// Returns true if the WebView the plugin is in renders via the accelerated
// compositing path.
bool IsViewAccelerated();
// Track, set and reset size attributes to control the size of the plugin
// in and out of fullscreen mode.
void KeepSizeAttributesBeforeFullscreen();
void SetSizeAttributesForFullscreen();
void ResetSizeAttributesAfterFullscreen();
// Shared code between SetFullscreen() and FlashSetFullscreen().
bool SetFullscreenCommon(bool fullscreen) const;
bool IsMouseLocked();
bool LockMouse();
MouseLockDispatcher* GetMouseLockDispatcher();
MouseLockDispatcher::LockTarget* GetOrCreateLockTargetAdapter();
void UnSetAndDeleteLockTargetAdapter();
void DidDataFromWebURLResponse(const blink::WebURLResponse& response,
int pending_host_id,
const ppapi::URLResponseInfoData& data);
// Converts the PP_Rect between DIP and Viewport.
void ConvertRectToDIP(PP_Rect* rect) const;
void ConvertDIPToViewport(gfx::Rect* rect) const;
// Each time CommitTransferableResource() is called, this instance is given
// ownership of a texture and gpu::Mailbox. This instance always needs to hold
// on to the most recently committed texture, since UpdateLayer() might
// require it. Since it is possible for a gpu::Mailbox to be passed to
// |texture_layer_| more than once, a reference counting mechanism is
// necessary to ensure that a texture isn't returned until all copies of
// it have been released by texture_layer_.
// This method should be called each time a viz::TransferableResource is
// passed to |texture_layer_|. It increments an internal reference count.
void IncrementTextureReferenceCount(
const viz::TransferableResource& resource);
// This method should be called each time |texture_layer_| finishes consuming
// a viz::TransferableResource. It decrements an internal reference count.
// Returns whether the last reference was removed.
bool DecrementTextureReferenceCount(
const viz::TransferableResource& resource);
// Whether a given viz::TransferableResource is in use by |texture_layer_|.
bool IsTextureInUse(const viz::TransferableResource& resource) const;
void HandleAccessibilityChange();
RenderFrameImpl* render_frame_;
scoped_refptr<PluginModule> module_;
std::unique_ptr<ppapi::PPP_Instance_Combined> instance_interface_;
// If this is the NaCl plugin, we create a new module when we switch to the
// IPC-based PPAPI proxy. Store the original module and instance interface
// so we can shut down properly.
scoped_refptr<PluginModule> original_module_;
std::unique_ptr<ppapi::PPP_Instance_Combined> original_instance_interface_;
PP_Instance pp_instance_;
// These are the scale and the translation that will be applied to the layer.
gfx::PointF graphics2d_translation_;
float graphics2d_scale_;
// NULL until we have been initialized.
blink::WebPluginContainer* container_;
scoped_refptr<cc::TextureLayer> texture_layer_;
bool layer_bound_to_fullscreen_;
bool layer_is_hardware_;
// Plugin URL.
const GURL plugin_url_;
GURL document_url_;
// Used to track Flash-specific metrics.
const bool is_flash_plugin_;
// Set to true the first time the plugin is clicked. Used to collect metrics.
bool has_been_clicked_;
// Responsible for turning on throttling if Power Saver is on.
std::unique_ptr<PluginInstanceThrottlerImpl> throttler_;
// Indicates whether this is a full frame instance, which means it represents
// an entire document rather than an embed tag.
bool full_frame_;
// Stores the current state of the plugin view.
ppapi::ViewData view_data_;
// The last state sent to the plugin. It is only valid after
// |sent_initial_did_change_view_| is set to true.
ppapi::ViewData last_sent_view_data_;
// The current unobscured portion of the plugin.
gfx::Rect unobscured_rect_;
// The viewport coordinates to window coordinates ratio.
float viewport_to_dip_scale_;
// Indicates if we've ever sent a didChangeView to the plugin. This ensures we
// always send an initial notification, even if the position and clip are the
// same as the default values.
bool sent_initial_did_change_view_;
// The current device context for painting in 2D or 3D.
scoped_refptr<PPB_Graphics3D_Impl> bound_graphics_3d_;
PepperGraphics2DHost* bound_graphics_2d_platform_;
// We track two types of focus, one from WebKit, which is the focus among
// all elements of the page, one one from the browser, which is whether the
// tab/window has focus. We tell the plugin it has focus only when both of
// these values are set to true.
bool has_webkit_focus_;
bool has_content_area_focus_;
// The id of the current find operation, or -1 if none is in process.
int find_identifier_;
// Helper object that creates resources.
std::unique_ptr<ppapi::thunk::ResourceCreationAPI> resource_creation_;
// The plugin-provided interfaces.
// When adding PPP interfaces, make sure to reset them in ResetAsProxied.
const PPP_Find_Private* plugin_find_interface_;
const PPP_InputEvent* plugin_input_event_interface_;
const PPP_MouseLock* plugin_mouse_lock_interface_;
const PPP_Pdf* plugin_pdf_interface_;
const PPP_Instance_Private* plugin_private_interface_;
const PPP_TextInput_Dev* plugin_textinput_interface_;
// Flags indicating whether we have asked this plugin instance for the
// corresponding interfaces, so that we can ask only once.
// When adding flags, make sure to reset them in ResetAsProxied.
bool checked_for_plugin_input_event_interface_;
bool checked_for_plugin_pdf_interface_;
// This is only valid between a successful PrintBegin call and a PrintEnd
// call.
PP_PrintSettings_Dev current_print_settings_;
// The entire document goes into one metafile. However, it is impossible to
// know if a call to PrintPage() is the last call. Thus in PrintPage(), just
// store the page number in |ranges_|. The hack is in PrintEnd(), where a
// valid |metafile_| is preserved in PrintWebFrameHelper::PrintPages(). This
// makes it possible to generate the entire PDF given the variables below:
// The metafile to save into, which is guaranteed to be valid between a
// successful PrintBegin call and a PrintEnd call.
printing::MetafileSkia* metafile_;
// An array of page ranges.
std::vector<PP_PrintPageNumberRange_Dev> ranges_;
scoped_refptr<ppapi::Resource> gamepad_impl_;
scoped_refptr<ppapi::Resource> uma_private_impl_;
// The plugin print interface.
const PPP_Printing_Dev* plugin_print_interface_;
// The plugin 3D interface.
const PPP_Graphics3D* plugin_graphics_3d_interface_;
// Contains the cursor if it's set by the plugin.
std::unique_ptr<blink::WebCursorInfo> cursor_;
// Set to true if this plugin thinks it will always be on top. This allows us
// to use a more optimized painting path in some cases.
bool always_on_top_;
// Implementation of PPB_FlashFullscreen.
// Plugin container for fullscreen mode. NULL if not in fullscreen mode. Note:
// there is a transition state where fullscreen_container_ is non-NULL but
// flash_fullscreen_ is false (see above).
FullscreenContainer* fullscreen_container_;
// True if we are in "flash" fullscreen mode. False if we are in normal mode
// or in transition to fullscreen. Normal fullscreen mode is indicated in
// the ViewData.
bool flash_fullscreen_;
// Implementation of PPB_Fullscreen.
// Since entering fullscreen mode is an asynchronous operation, we set this
// variable to the desired state at the time we issue the fullscreen change
// request. The plugin will receive a DidChangeView event when it goes
// fullscreen.
bool desired_fullscreen_state_;
// WebKit does not resize the plugin when going into fullscreen mode, so we do
// this here by modifying the various plugin attributes and then restoring
// them on exit.
blink::WebString width_before_fullscreen_;
blink::WebString height_before_fullscreen_;
blink::WebString border_before_fullscreen_;
blink::WebString style_before_fullscreen_;
gfx::Size screen_size_for_fullscreen_;
// The MessageChannel used to implement bidirectional postMessage for the
// instance.
v8::Persistent<v8::Object> message_channel_object_;
// A pointer to the MessageChannel underlying |message_channel_object_|. It is
// only valid as long as |message_channel_object_| is alive.
MessageChannel* message_channel_;
// Bitmap for crashed plugin. Lazily initialized.
cc::PaintImage sad_plugin_image_;
typedef std::set<PluginObject*> PluginObjectSet;
PluginObjectSet live_plugin_objects_;
// Classes of events that the plugin has registered for, both for filtering
// and not. The bits are PP_INPUTEVENT_CLASS_*.
uint32_t input_event_mask_;
uint32_t filtered_input_event_mask_;
// Text composition status.
struct TextInputCaretInfo {
gfx::Rect caret;
gfx::Rect caret_bounds;
base::Optional<TextInputCaretInfo> text_input_caret_info_;
ui::TextInputType text_input_type_;
// Text selection status.
std::string surrounding_text_;
size_t selection_caret_;
size_t selection_anchor_;
scoped_refptr<ppapi::TrackedCallback> lock_mouse_callback_;
// We store the arguments so we can re-send them if we are reset to talk to
// NaCl via the IPC NaCl proxy.
std::vector<std::string> argn_;
std::vector<std::string> argv_;
// Non-owning pointer to the document loader, if any.
blink::WebAssociatedURLLoaderClient* document_loader_;
// State for deferring document loads. Used only by external instances.
blink::WebURLResponse external_document_response_;
std::unique_ptr<ExternalDocumentLoader> external_document_loader_;
bool external_document_load_;
// The link currently under the cursor.
base::string16 link_under_cursor_;
// We store the isolate at construction so that we can be sure to use the
// Isolate in which this Instance was created when interacting with v8.
v8::Isolate* isolate_;
std::unique_ptr<MouseLockDispatcher::LockTarget> lock_target_;
bool is_deleted_;
// The text that is currently selected in the plugin.
base::string16 selected_text_;
// The most recently committed texture. This is kept around in case the layer
// needs to be regenerated.
viz::TransferableResource committed_texture_;
// The Graphics3D that produced the most recently committed texture.
scoped_refptr<PPB_Graphics3D_Impl> committed_texture_graphics_3d_;
gpu::SyncToken committed_texture_consumed_sync_token_;
// Holds the number of references |texture_layer_| has to any given
// gpu::Mailbox.
// We expect there to be no more than 10 textures in use at a time. A
// std::vector will have better performance than a std::map.
using MailboxRefCount = std::pair<gpu::Mailbox, int>;
std::vector<MailboxRefCount> texture_ref_counts_;
bool initialized_;
bool created_in_process_instance_;
// The controller for all active audios of this pepper instance.
std::unique_ptr<PepperAudioController> audio_controller_;
// We use a weak ptr factory for scheduling DidChangeView events so that we
// can tell whether updates are pending and consolidate them. When there's
// already a weak ptr pending (HasWeakPtrs is true), code should update the
// view_data_ but not send updates. This also allows us to cancel scheduled
// view change events.
base::WeakPtrFactory<PepperPluginInstanceImpl> view_change_weak_ptr_factory_{
base::WeakPtrFactory<PepperPluginInstanceImpl> weak_factory_{this};
} // namespace content