mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-25 13:51:41 +00:00
bd27b86da3
MozReview-Commit-ID: AqnztoUbsmk --HG-- extra : rebase_source : 76a232a08b42ed73b4922c03bc0f2e9d1769203b
453 lines
17 KiB
C++
453 lines
17 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
|
|
* vim: sw=2 ts=8 et :
|
|
*/
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
/**
|
|
* This "puppet widget" isn't really a platform widget. It's intended
|
|
* to be used in widgetless rendering contexts, such as sandboxed
|
|
* content processes. If any "real" widgetry is needed, the request
|
|
* is forwarded to and/or data received from elsewhere.
|
|
*/
|
|
|
|
#ifndef mozilla_widget_PuppetWidget_h__
|
|
#define mozilla_widget_PuppetWidget_h__
|
|
|
|
#include "mozilla/gfx/2D.h"
|
|
#include "mozilla/RefPtr.h"
|
|
#include "nsBaseScreen.h"
|
|
#include "nsBaseWidget.h"
|
|
#include "nsCOMArray.h"
|
|
#include "nsIKeyEventInPluginCallback.h"
|
|
#include "nsIScreenManager.h"
|
|
#include "nsThreadUtils.h"
|
|
#include "mozilla/Attributes.h"
|
|
#include "mozilla/ContentCache.h"
|
|
#include "mozilla/EventForwards.h"
|
|
#include "mozilla/TextEventDispatcherListener.h"
|
|
|
|
namespace mozilla {
|
|
|
|
namespace dom {
|
|
class TabChild;
|
|
} // namespace dom
|
|
|
|
namespace widget {
|
|
|
|
struct AutoCacheNativeKeyCommands;
|
|
|
|
class PuppetWidget : public nsBaseWidget
|
|
, public TextEventDispatcherListener
|
|
{
|
|
typedef mozilla::CSSRect CSSRect;
|
|
typedef mozilla::dom::TabChild TabChild;
|
|
typedef mozilla::gfx::DrawTarget DrawTarget;
|
|
|
|
// Avoiding to make compiler confused between mozilla::widget and nsIWidget.
|
|
typedef mozilla::widget::TextEventDispatcher TextEventDispatcher;
|
|
typedef mozilla::widget::TextEventDispatcherListener
|
|
TextEventDispatcherListener;
|
|
|
|
typedef nsBaseWidget Base;
|
|
|
|
// The width and height of the "widget" are clamped to this.
|
|
static const size_t kMaxDimension;
|
|
|
|
public:
|
|
explicit PuppetWidget(TabChild* aTabChild);
|
|
|
|
protected:
|
|
virtual ~PuppetWidget();
|
|
|
|
public:
|
|
NS_DECL_ISUPPORTS_INHERITED
|
|
|
|
// PuppetWidget creation is infallible, hence InfallibleCreate(), which
|
|
// Create() calls.
|
|
using nsBaseWidget::Create; // for Create signature not overridden here
|
|
virtual nsresult Create(nsIWidget* aParent,
|
|
nsNativeWidget aNativeParent,
|
|
const LayoutDeviceIntRect& aRect,
|
|
nsWidgetInitData* aInitData = nullptr)
|
|
override;
|
|
void InfallibleCreate(nsIWidget* aParent,
|
|
nsNativeWidget aNativeParent,
|
|
const LayoutDeviceIntRect& aRect,
|
|
nsWidgetInitData* aInitData = nullptr);
|
|
|
|
void InitIMEState();
|
|
|
|
virtual already_AddRefed<nsIWidget>
|
|
CreateChild(const LayoutDeviceIntRect& aRect,
|
|
nsWidgetInitData* aInitData = nullptr,
|
|
bool aForceUseIWidgetParent = false) override;
|
|
|
|
virtual void Destroy() override;
|
|
|
|
virtual void Show(bool aState) override;
|
|
|
|
virtual bool IsVisible() const override
|
|
{ return mVisible; }
|
|
|
|
virtual void ConstrainPosition(bool /*ignored aAllowSlop*/,
|
|
int32_t* aX,
|
|
int32_t* aY) override
|
|
{ *aX = kMaxDimension; *aY = kMaxDimension; }
|
|
|
|
// Widget position is controlled by the parent process via TabChild.
|
|
virtual void Move(double aX, double aY) override {}
|
|
|
|
virtual void Resize(double aWidth,
|
|
double aHeight,
|
|
bool aRepaint) override;
|
|
virtual void Resize(double aX,
|
|
double aY,
|
|
double aWidth,
|
|
double aHeight,
|
|
bool aRepaint) override
|
|
{
|
|
if (!mBounds.IsEqualXY(aX, aY)) {
|
|
NotifyWindowMoved(aX, aY);
|
|
}
|
|
mBounds.MoveTo(aX, aY);
|
|
return Resize(aWidth, aHeight, aRepaint);
|
|
}
|
|
|
|
// XXX/cjones: copying gtk behavior here; unclear what disabling a
|
|
// widget is supposed to entail
|
|
virtual void Enable(bool aState) override
|
|
{ mEnabled = aState; }
|
|
virtual bool IsEnabled() const override
|
|
{ return mEnabled; }
|
|
|
|
virtual nsresult SetFocus(bool aRaise = false) override;
|
|
|
|
virtual nsresult ConfigureChildren(const nsTArray<Configuration>& aConfigurations) override;
|
|
|
|
virtual void Invalidate(const LayoutDeviceIntRect& aRect) override;
|
|
|
|
// PuppetWidgets don't have native data, as they're purely nonnative.
|
|
virtual void* GetNativeData(uint32_t aDataType) override;
|
|
#if defined(XP_WIN)
|
|
void SetNativeData(uint32_t aDataType, uintptr_t aVal) override;
|
|
#endif
|
|
|
|
// PuppetWidgets don't have any concept of titles.
|
|
virtual nsresult SetTitle(const nsAString& aTitle) override
|
|
{ return NS_ERROR_UNEXPECTED; }
|
|
|
|
virtual LayoutDeviceIntPoint WidgetToScreenOffset() override
|
|
{ return GetWindowPosition() + GetChromeOffset(); }
|
|
|
|
int32_t RoundsWidgetCoordinatesTo() override;
|
|
|
|
void InitEvent(WidgetGUIEvent& aEvent,
|
|
LayoutDeviceIntPoint* aPoint = nullptr);
|
|
|
|
virtual nsresult DispatchEvent(WidgetGUIEvent* aEvent,
|
|
nsEventStatus& aStatus) override;
|
|
nsEventStatus DispatchInputEvent(WidgetInputEvent* aEvent) override;
|
|
void SetConfirmedTargetAPZC(uint64_t aInputBlockId,
|
|
const nsTArray<ScrollableLayerGuid>& aTargets) const override;
|
|
void UpdateZoomConstraints(const uint32_t& aPresShellId,
|
|
const FrameMetrics::ViewID& aViewId,
|
|
const mozilla::Maybe<ZoomConstraints>& aConstraints) override;
|
|
bool AsyncPanZoomEnabled() const override;
|
|
|
|
virtual void GetEditCommands(
|
|
NativeKeyBindingsType aType,
|
|
const mozilla::WidgetKeyboardEvent& aEvent,
|
|
nsTArray<mozilla::CommandInt>& aCommands) override;
|
|
|
|
friend struct AutoCacheNativeKeyCommands;
|
|
|
|
//
|
|
// nsBaseWidget methods we override
|
|
//
|
|
|
|
// Documents loaded in child processes are always subdocuments of
|
|
// other docs in an ancestor process. To ensure that the
|
|
// backgrounds of those documents are painted like those of
|
|
// same-process subdocuments, we force the widget here to be
|
|
// transparent, which in turn will cause layout to use a transparent
|
|
// backstop background color.
|
|
virtual nsTransparencyMode GetTransparencyMode() override
|
|
{ return eTransparencyTransparent; }
|
|
|
|
virtual LayerManager*
|
|
GetLayerManager(PLayerTransactionChild* aShadowManager = nullptr,
|
|
LayersBackend aBackendHint = mozilla::layers::LayersBackend::LAYERS_NONE,
|
|
LayerManagerPersistence aPersistence = LAYER_MANAGER_CURRENT) override;
|
|
|
|
// This is used for creating remote layer managers and for re-creating
|
|
// them after a compositor reset. The lambda aInitializeFunc is used to perform
|
|
// any caller-required initialization for the newly created layer
|
|
// manager; in the event of a failure, return false and it will destroy the
|
|
// new layer manager without changing the state of the widget.
|
|
bool CreateRemoteLayerManager(const std::function<bool(LayerManager*)>& aInitializeFunc);
|
|
|
|
bool HasLayerManager()
|
|
{
|
|
return !!mLayerManager;
|
|
}
|
|
|
|
virtual void SetInputContext(const InputContext& aContext,
|
|
const InputContextAction& aAction) override;
|
|
virtual InputContext GetInputContext() override;
|
|
virtual NativeIMEContext GetNativeIMEContext() override;
|
|
TextEventDispatcherListener* GetNativeTextEventDispatcherListener() override
|
|
{
|
|
return mNativeTextEventDispatcherListener ?
|
|
mNativeTextEventDispatcherListener.get() : this;
|
|
}
|
|
void SetNativeTextEventDispatcherListener(TextEventDispatcherListener* aListener)
|
|
{ mNativeTextEventDispatcherListener = aListener; }
|
|
|
|
virtual void SetCursor(nsCursor aCursor) override;
|
|
virtual nsresult SetCursor(imgIContainer* aCursor,
|
|
uint32_t aHotspotX, uint32_t aHotspotY) override;
|
|
|
|
virtual void ClearCachedCursor() override;
|
|
|
|
// Gets the DPI of the screen corresponding to this widget.
|
|
// Contacts the parent process which gets the DPI from the
|
|
// proper widget there. TODO: Handle DPI changes that happen
|
|
// later on.
|
|
virtual float GetDPI() override;
|
|
virtual double GetDefaultScaleInternal() override;
|
|
|
|
virtual bool NeedsPaint() override;
|
|
|
|
// Paint the widget immediately if any paints are queued up.
|
|
void PaintNowIfNeeded();
|
|
|
|
virtual TabChild* GetOwningTabChild() override { return mTabChild; }
|
|
|
|
void UpdateBackingScaleCache(float aDpi, int32_t aRounding, double aScale)
|
|
{
|
|
mDPI = aDpi;
|
|
mRounding = aRounding;
|
|
mDefaultScale = aScale;
|
|
}
|
|
|
|
nsIntSize GetScreenDimensions();
|
|
|
|
// Get the offset to the chrome of the window that this tab belongs to.
|
|
LayoutDeviceIntPoint GetChromeOffset();
|
|
|
|
// Get the screen position of the application window.
|
|
LayoutDeviceIntPoint GetWindowPosition();
|
|
|
|
virtual LayoutDeviceIntRect GetScreenBounds() override;
|
|
|
|
virtual MOZ_MUST_USE nsresult
|
|
StartPluginIME(const mozilla::WidgetKeyboardEvent& aKeyboardEvent,
|
|
int32_t aPanelX, int32_t aPanelY,
|
|
nsString& aCommitted) override;
|
|
|
|
virtual void SetPluginFocused(bool& aFocused) override;
|
|
virtual void DefaultProcOfPluginEvent(
|
|
const mozilla::WidgetPluginEvent& aEvent) override;
|
|
|
|
virtual nsresult SynthesizeNativeKeyEvent(int32_t aNativeKeyboardLayout,
|
|
int32_t aNativeKeyCode,
|
|
uint32_t aModifierFlags,
|
|
const nsAString& aCharacters,
|
|
const nsAString& aUnmodifiedCharacters,
|
|
nsIObserver* aObserver) override;
|
|
virtual nsresult SynthesizeNativeMouseEvent(LayoutDeviceIntPoint aPoint,
|
|
uint32_t aNativeMessage,
|
|
uint32_t aModifierFlags,
|
|
nsIObserver* aObserver) override;
|
|
virtual nsresult SynthesizeNativeMouseMove(LayoutDeviceIntPoint aPoint,
|
|
nsIObserver* aObserver) override;
|
|
virtual nsresult SynthesizeNativeMouseScrollEvent(LayoutDeviceIntPoint aPoint,
|
|
uint32_t aNativeMessage,
|
|
double aDeltaX,
|
|
double aDeltaY,
|
|
double aDeltaZ,
|
|
uint32_t aModifierFlags,
|
|
uint32_t aAdditionalFlags,
|
|
nsIObserver* aObserver) override;
|
|
virtual nsresult SynthesizeNativeTouchPoint(uint32_t aPointerId,
|
|
TouchPointerState aPointerState,
|
|
LayoutDeviceIntPoint aPoint,
|
|
double aPointerPressure,
|
|
uint32_t aPointerOrientation,
|
|
nsIObserver* aObserver) override;
|
|
virtual nsresult SynthesizeNativeTouchTap(LayoutDeviceIntPoint aPoint,
|
|
bool aLongTap,
|
|
nsIObserver* aObserver) override;
|
|
virtual nsresult ClearNativeTouchSequence(nsIObserver* aObserver) override;
|
|
virtual uint32_t GetMaxTouchPoints() const override;
|
|
|
|
virtual void StartAsyncScrollbarDrag(const AsyncDragMetrics& aDragMetrics) override;
|
|
|
|
virtual void SetCandidateWindowForPlugin(
|
|
const CandidateWindowPosition& aPosition) override;
|
|
|
|
virtual void ZoomToRect(const uint32_t& aPresShellId,
|
|
const FrameMetrics::ViewID& aViewId,
|
|
const CSSRect& aRect,
|
|
const uint32_t& aFlags) override;
|
|
|
|
virtual bool HasPendingInputEvent() override;
|
|
|
|
void HandledWindowedPluginKeyEvent(const NativeEventData& aKeyEventData,
|
|
bool aIsConsumed);
|
|
|
|
virtual nsresult OnWindowedPluginKeyEvent(
|
|
const NativeEventData& aKeyEventData,
|
|
nsIKeyEventInPluginCallback* aCallback) override;
|
|
|
|
virtual void LookUpDictionary(
|
|
const nsAString& aText,
|
|
const nsTArray<mozilla::FontRange>& aFontRangeArray,
|
|
const bool aIsVertical,
|
|
const LayoutDeviceIntPoint& aPoint) override;
|
|
|
|
// TextEventDispatcherListener
|
|
using nsBaseWidget::NotifyIME;
|
|
NS_IMETHOD NotifyIME(TextEventDispatcher* aTextEventDispatcher,
|
|
const IMENotification& aNotification) override;
|
|
NS_IMETHOD_(IMENotificationRequests) GetIMENotificationRequests() override;
|
|
NS_IMETHOD_(void) OnRemovedFrom(
|
|
TextEventDispatcher* aTextEventDispatcher) override;
|
|
NS_IMETHOD_(void) WillDispatchKeyboardEvent(
|
|
TextEventDispatcher* aTextEventDispatcher,
|
|
WidgetKeyboardEvent& aKeyboardEvent,
|
|
uint32_t aIndexOfKeypress,
|
|
void* aData) override;
|
|
|
|
private:
|
|
nsresult Paint();
|
|
|
|
void SetChild(PuppetWidget* aChild);
|
|
|
|
nsresult RequestIMEToCommitComposition(bool aCancel);
|
|
nsresult NotifyIMEOfFocusChange(const IMENotification& aIMENotification);
|
|
nsresult NotifyIMEOfSelectionChange(const IMENotification& aIMENotification);
|
|
nsresult NotifyIMEOfCompositionUpdate(const IMENotification& aIMENotification);
|
|
nsresult NotifyIMEOfTextChange(const IMENotification& aIMENotification);
|
|
nsresult NotifyIMEOfMouseButtonEvent(const IMENotification& aIMENotification);
|
|
nsresult NotifyIMEOfPositionChange(const IMENotification& aIMENotification);
|
|
|
|
bool CacheEditorRect();
|
|
bool CacheCompositionRects(uint32_t& aStartOffset,
|
|
nsTArray<LayoutDeviceIntRect>& aRectArray,
|
|
uint32_t& aTargetCauseOffset);
|
|
bool GetCaretRect(LayoutDeviceIntRect& aCaretRect, uint32_t aCaretOffset);
|
|
uint32_t GetCaretOffset();
|
|
|
|
nsIWidgetListener* GetCurrentWidgetListener();
|
|
|
|
class PaintTask : public Runnable {
|
|
public:
|
|
NS_DECL_NSIRUNNABLE
|
|
explicit PaintTask(PuppetWidget* widget)
|
|
: Runnable("PuppetWidget::PaintTask"), mWidget(widget) {}
|
|
void Revoke() { mWidget = nullptr; }
|
|
private:
|
|
PuppetWidget* mWidget;
|
|
};
|
|
|
|
class MemoryPressureObserver : public nsIObserver {
|
|
public:
|
|
NS_DECL_ISUPPORTS
|
|
NS_DECL_NSIOBSERVER
|
|
explicit MemoryPressureObserver(PuppetWidget* aWidget) : mWidget(aWidget) {}
|
|
void Remove();
|
|
private:
|
|
virtual ~MemoryPressureObserver() {}
|
|
PuppetWidget* mWidget;
|
|
};
|
|
friend class MemoryPressureObserver;
|
|
|
|
// TabChild normally holds a strong reference to this PuppetWidget
|
|
// or its root ancestor, but each PuppetWidget also needs a
|
|
// reference back to TabChild (e.g. to delegate nsIWidget IME calls
|
|
// to chrome) So we hold a weak reference to TabChild here. Since
|
|
// it's possible for TabChild to outlive the PuppetWidget, we clear
|
|
// this weak reference in Destroy()
|
|
TabChild* mTabChild;
|
|
// The "widget" to which we delegate events if we don't have an
|
|
// event handler.
|
|
RefPtr<PuppetWidget> mChild;
|
|
LayoutDeviceIntRegion mDirtyRegion;
|
|
nsRevocableEventPtr<PaintTask> mPaintTask;
|
|
RefPtr<MemoryPressureObserver> mMemoryPressureObserver;
|
|
// XXX/cjones: keeping this around until we teach LayerManager to do
|
|
// retained-content-only transactions
|
|
RefPtr<DrawTarget> mDrawTarget;
|
|
// IME
|
|
IMENotificationRequests mIMENotificationRequestsOfParent;
|
|
InputContext mInputContext;
|
|
// mNativeIMEContext is initialized when this dispatches every composition
|
|
// event both from parent process's widget and TextEventDispatcher in same
|
|
// process. If it hasn't been started composition yet, this isn't necessary
|
|
// for XP code since there is no TextComposition instance which is caused by
|
|
// the PuppetWidget instance.
|
|
NativeIMEContext mNativeIMEContext;
|
|
ContentCacheInChild mContentCache;
|
|
|
|
// The DPI of the screen corresponding to this widget
|
|
float mDPI;
|
|
int32_t mRounding;
|
|
double mDefaultScale;
|
|
|
|
nsCOMPtr<imgIContainer> mCustomCursor;
|
|
uint32_t mCursorHotspotX, mCursorHotspotY;
|
|
|
|
nsCOMArray<nsIKeyEventInPluginCallback> mKeyEventInPluginCallbacks;
|
|
|
|
RefPtr<TextEventDispatcherListener> mNativeTextEventDispatcherListener;
|
|
|
|
protected:
|
|
bool mEnabled;
|
|
bool mVisible;
|
|
|
|
private:
|
|
bool mNeedIMEStateInit;
|
|
// When remote process requests to commit/cancel a composition, the
|
|
// composition may have already been committed in the main process. In such
|
|
// case, this will receive remaining composition events for the old
|
|
// composition even after requesting to commit/cancel the old composition
|
|
// but the TextComposition for the old composition has already been destroyed.
|
|
// So, until this meets new eCompositionStart, following composition events
|
|
// should be ignored if this is set to true.
|
|
bool mIgnoreCompositionEvents;
|
|
};
|
|
|
|
class PuppetScreen : public nsBaseScreen
|
|
{
|
|
public:
|
|
explicit PuppetScreen(void* nativeScreen);
|
|
~PuppetScreen();
|
|
|
|
NS_IMETHOD GetRect(int32_t* aLeft, int32_t* aTop, int32_t* aWidth, int32_t* aHeight) override;
|
|
NS_IMETHOD GetAvailRect(int32_t* aLeft, int32_t* aTop, int32_t* aWidth, int32_t* aHeight) override;
|
|
NS_IMETHOD GetPixelDepth(int32_t* aPixelDepth) override;
|
|
NS_IMETHOD GetColorDepth(int32_t* aColorDepth) override;
|
|
};
|
|
|
|
class PuppetScreenManager final : public nsIScreenManager
|
|
{
|
|
~PuppetScreenManager();
|
|
|
|
public:
|
|
PuppetScreenManager();
|
|
|
|
NS_DECL_ISUPPORTS
|
|
NS_DECL_NSISCREENMANAGER
|
|
|
|
protected:
|
|
nsCOMPtr<nsIScreen> mOneScreen;
|
|
};
|
|
|
|
} // namespace widget
|
|
} // namespace mozilla
|
|
|
|
#endif // mozilla_widget_PuppetWidget_h__
|