forked from mirrors/gecko-dev
406 lines
16 KiB
C++
406 lines
16 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 "nsBaseWidget.h"
|
|
#include "nsCOMArray.h"
|
|
#include "nsThreadUtils.h"
|
|
#include "mozilla/Attributes.h"
|
|
#include "mozilla/ContentCache.h"
|
|
#include "mozilla/EventForwards.h"
|
|
#include "mozilla/TextEventDispatcherListener.h"
|
|
#include "mozilla/layers/MemoryPressureObserver.h"
|
|
|
|
namespace mozilla {
|
|
enum class NativeKeyBindingsType : uint8_t;
|
|
|
|
namespace dom {
|
|
class BrowserChild;
|
|
} // namespace dom
|
|
|
|
namespace layers {
|
|
class WebRenderLayerManager;
|
|
} // namespace layers
|
|
|
|
namespace widget {
|
|
|
|
struct AutoCacheNativeKeyCommands;
|
|
|
|
class PuppetWidget : public nsBaseWidget,
|
|
public TextEventDispatcherListener,
|
|
public layers::MemoryPressureListener {
|
|
typedef mozilla::CSSRect CSSRect;
|
|
typedef mozilla::dom::BrowserChild BrowserChild;
|
|
typedef mozilla::gfx::DrawTarget DrawTarget;
|
|
typedef mozilla::layers::WebRenderLayerManager WebRenderLayerManager;
|
|
|
|
// 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.
|
|
public:
|
|
explicit PuppetWidget(BrowserChild* aBrowserChild);
|
|
|
|
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,
|
|
widget::InitData* aInitData = nullptr) override;
|
|
void InfallibleCreate(nsIWidget* aParent, nsNativeWidget aNativeParent,
|
|
const LayoutDeviceIntRect& aRect,
|
|
widget::InitData* aInitData = nullptr);
|
|
|
|
void InitIMEState();
|
|
|
|
virtual already_AddRefed<nsIWidget> CreateChild(
|
|
const LayoutDeviceIntRect& aRect, widget::InitData* aInitData = nullptr,
|
|
bool aForceUseIWidgetParent = false) override;
|
|
|
|
virtual void Destroy() override;
|
|
|
|
virtual void Show(bool aState) override;
|
|
|
|
virtual bool IsVisible() const override { return mVisible; }
|
|
|
|
// Widget position is controlled by the parent process via BrowserChild.
|
|
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 nsSizeMode SizeMode() override { return mSizeMode; }
|
|
virtual void SetSizeMode(nsSizeMode aMode) override { mSizeMode = aMode; }
|
|
|
|
virtual void SetFocus(Raise, mozilla::dom::CallerType aCallerType) 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 { return nullptr; }
|
|
|
|
// PuppetWidgets don't have any concept of titles.
|
|
virtual nsresult SetTitle(const nsAString& aTitle) override {
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
|
|
virtual mozilla::LayoutDeviceToLayoutDeviceMatrix4x4
|
|
WidgetToTopLevelWidgetTransform() override;
|
|
|
|
virtual LayoutDeviceIntPoint WidgetToScreenOffset() override;
|
|
|
|
virtual LayoutDeviceIntPoint TopLevelWidgetToScreenOffset() override {
|
|
return GetWindowPosition();
|
|
}
|
|
|
|
int32_t RoundsWidgetCoordinatesTo() override { return mRounding; }
|
|
|
|
void InitEvent(WidgetGUIEvent& aEvent,
|
|
LayoutDeviceIntPoint* aPoint = nullptr);
|
|
|
|
virtual nsresult DispatchEvent(WidgetGUIEvent* aEvent,
|
|
nsEventStatus& aStatus) override;
|
|
ContentAndAPZEventStatus DispatchInputEvent(
|
|
WidgetInputEvent* aEvent) override;
|
|
void SetConfirmedTargetAPZC(
|
|
uint64_t aInputBlockId,
|
|
const nsTArray<ScrollableLayerGuid>& aTargets) const override;
|
|
void UpdateZoomConstraints(
|
|
const uint32_t& aPresShellId, const ScrollableLayerGuid::ViewID& aViewId,
|
|
const mozilla::Maybe<ZoomConstraints>& aConstraints) override;
|
|
bool AsyncPanZoomEnabled() const override;
|
|
|
|
MOZ_CAN_RUN_SCRIPT virtual bool 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 TransparencyMode GetTransparencyMode() override {
|
|
return TransparencyMode::Transparent;
|
|
}
|
|
|
|
virtual WindowRenderer* GetWindowRenderer() 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(WebRenderLayerManager*)>& aInitializeFunc);
|
|
|
|
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(const Cursor&) override;
|
|
|
|
float GetDPI() override { return mDPI; }
|
|
double GetDefaultScaleInternal() override { return mDefaultScale; }
|
|
|
|
virtual bool NeedsPaint() override;
|
|
|
|
// Paint the widget immediately if any paints are queued up.
|
|
void PaintNowIfNeeded();
|
|
|
|
virtual BrowserChild* GetOwningBrowserChild() override {
|
|
return mBrowserChild;
|
|
}
|
|
|
|
void UpdateBackingScaleCache(float aDpi, int32_t aRounding, double aScale) {
|
|
mDPI = aDpi;
|
|
mRounding = aRounding;
|
|
mDefaultScale = aScale;
|
|
}
|
|
|
|
// safe area insets support
|
|
virtual ScreenIntMargin GetSafeAreaInsets() const override;
|
|
void UpdateSafeAreaInsets(const ScreenIntMargin& aSafeAreaInsets);
|
|
|
|
// Get the offset to the chrome of the window that this tab belongs to.
|
|
//
|
|
// NOTE: In OOP iframes this value is zero. You should use
|
|
// WidgetToTopLevelWidgetTransform instead which is already including the
|
|
// chrome offset.
|
|
LayoutDeviceIntPoint GetChromeOffset();
|
|
|
|
// Get the screen position of the application window.
|
|
LayoutDeviceIntPoint GetWindowPosition();
|
|
|
|
virtual LayoutDeviceIntRect GetScreenBounds() 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, NativeMouseMessage aNativeMessage,
|
|
MouseButton aButton, nsIWidget::Modifiers 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 SynthesizeNativeTouchPadPinch(
|
|
TouchpadGesturePhase aEventPhase, float aScale,
|
|
LayoutDeviceIntPoint aPoint, int32_t aModifierFlags) override;
|
|
virtual nsresult SynthesizeNativeTouchTap(LayoutDeviceIntPoint aPoint,
|
|
bool aLongTap,
|
|
nsIObserver* aObserver) override;
|
|
virtual nsresult ClearNativeTouchSequence(nsIObserver* aObserver) override;
|
|
virtual uint32_t GetMaxTouchPoints() const override;
|
|
virtual nsresult SynthesizeNativePenInput(uint32_t aPointerId,
|
|
TouchPointerState aPointerState,
|
|
LayoutDeviceIntPoint aPoint,
|
|
double aPressure,
|
|
uint32_t aRotation, int32_t aTiltX,
|
|
int32_t aTiltY, int32_t aButton,
|
|
nsIObserver* aObserver) override;
|
|
|
|
virtual nsresult SynthesizeNativeTouchpadDoubleTap(
|
|
LayoutDeviceIntPoint aPoint, uint32_t aModifierFlags) override;
|
|
|
|
virtual nsresult SynthesizeNativeTouchpadPan(TouchpadGesturePhase aEventPhase,
|
|
LayoutDeviceIntPoint aPoint,
|
|
double aDeltaX, double aDeltaY,
|
|
int32_t aModifierFlags,
|
|
nsIObserver* aObserver) override;
|
|
|
|
virtual void LockNativePointer() override;
|
|
virtual void UnlockNativePointer() override;
|
|
|
|
virtual void StartAsyncScrollbarDrag(
|
|
const AsyncDragMetrics& aDragMetrics) override;
|
|
|
|
virtual void ZoomToRect(const uint32_t& aPresShellId,
|
|
const ScrollableLayerGuid::ViewID& aViewId,
|
|
const CSSRect& aRect,
|
|
const uint32_t& aFlags) override;
|
|
|
|
virtual bool HasPendingInputEvent() override;
|
|
|
|
virtual void LookUpDictionary(
|
|
const nsAString& aText,
|
|
const nsTArray<mozilla::FontRange>& aFontRangeArray,
|
|
const bool aIsVertical, const LayoutDeviceIntPoint& aPoint) override;
|
|
|
|
nsresult SetSystemFont(const nsCString& aFontName) override;
|
|
nsresult GetSystemFont(nsCString& aFontName) 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;
|
|
|
|
virtual void OnMemoryPressure(layers::MemoryPressureReason aWhy) override;
|
|
|
|
private:
|
|
void 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();
|
|
|
|
// When this widget caches input context and currently managed by
|
|
// IMEStateManager, the cache is valid.
|
|
bool HaveValidInputContextCache() const;
|
|
|
|
class WidgetPaintTask : public Runnable {
|
|
public:
|
|
NS_DECL_NSIRUNNABLE
|
|
explicit WidgetPaintTask(PuppetWidget* widget)
|
|
: Runnable("PuppetWidget::WidgetPaintTask"), mWidget(widget) {}
|
|
void Revoke() { mWidget = nullptr; }
|
|
|
|
private:
|
|
PuppetWidget* mWidget;
|
|
};
|
|
|
|
nsRefreshDriver* GetTopLevelRefreshDriver() const;
|
|
|
|
// BrowserChild normally holds a strong reference to this PuppetWidget
|
|
// or its root ancestor, but each PuppetWidget also needs a
|
|
// reference back to BrowserChild (e.g. to delegate nsIWidget IME calls
|
|
// to chrome) So we hold a weak reference to BrowserChild here. Since
|
|
// it's possible for BrowserChild to outlive the PuppetWidget, we clear
|
|
// this weak reference in Destroy()
|
|
BrowserChild* mBrowserChild;
|
|
// The "widget" to which we delegate events if we don't have an
|
|
// event handler.
|
|
RefPtr<PuppetWidget> mChild;
|
|
nsRevocableEventPtr<WidgetPaintTask> mWidgetPaintTask;
|
|
RefPtr<layers::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 parent widget containing this widget.
|
|
float mDPI = GetFallbackDPI();
|
|
int32_t mRounding = 1;
|
|
double mDefaultScale = GetFallbackDefaultScale().scale;
|
|
|
|
ScreenIntMargin mSafeAreaInsets;
|
|
|
|
RefPtr<TextEventDispatcherListener> mNativeTextEventDispatcherListener;
|
|
|
|
protected:
|
|
bool mEnabled;
|
|
bool mVisible;
|
|
|
|
private:
|
|
nsSizeMode mSizeMode;
|
|
|
|
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;
|
|
};
|
|
|
|
} // namespace widget
|
|
} // namespace mozilla
|
|
|
|
#endif // mozilla_widget_PuppetWidget_h__
|