Emilio Cobos Álvarez
32e1eb0363
Differential Revision: https://phabricator.services.mozilla.com/D312028
2496 lines
87 KiB
C++
2496 lines
87 KiB
C++
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef nsIWidget_h_
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#define nsIWidget_h_
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#include <cmath>
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#include <cstdint>
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#include "ErrorList.h"
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#include "Units.h"
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#include "imgIContainer.h"
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#include "mozilla/AlreadyAddRefed.h"
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#include "mozilla/Assertions.h"
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#include "mozilla/Attributes.h"
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#include "mozilla/EventForwards.h"
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#include "mozilla/Maybe.h"
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#include "mozilla/RefPtr.h"
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#include "mozilla/TimeStamp.h"
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#include "mozilla/TypedEnumBits.h"
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#include "mozilla/UniquePtr.h"
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#include "mozilla/gfx/Matrix.h"
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#include "mozilla/gfx/Rect.h"
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#include "mozilla/image/Resolution.h"
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#include "mozilla/layers/LayersTypes.h"
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#include "mozilla/layers/ScrollableLayerGuid.h"
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#include "mozilla/layers/ZoomConstraints.h"
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#include "mozilla/widget/IMEData.h"
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#include "mozilla/widget/InitData.h"
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#include "nsCOMPtr.h"
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#include "nsColor.h"
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#include "nsDebug.h"
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#include "nsID.h"
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#include "nsIDOMWindowUtils.h"
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#include "nsISupports.h"
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#include "nsITheme.h"
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#include "nsITimer.h"
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#include "nsIWidgetListener.h"
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#include "nsRect.h"
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#include "nsSize.h"
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#include "nsStringFwd.h"
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#include "nsTArray.h"
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#include "nsTHashMap.h"
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#include "nsWeakReference.h"
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#include "nsXULAppAPI.h"
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// Windows specific constant indicating the maximum number of touch points the
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// inject api will allow. This also sets the maximum numerical value for touch
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// ids we can use when injecting touch points on Windows.
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#define TOUCH_INJECT_MAX_POINTS 256
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// forward declarations
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class nsIBidiKeyboard;
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class nsIRollupListener;
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class nsIContent;
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class nsMenuPopupFrame;
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class nsIRunnable;
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class nsIWidget;
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namespace mozilla {
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class CompositorVsyncDispatcher;
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class FallbackRenderer;
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class LiveResizeListener;
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class PanGestureInput;
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class MultiTouchInput;
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class Mutex;
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class PinchGestureInput;
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class SwipeTracker;
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class VsyncDispatcher;
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class WidgetGUIEvent;
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class WidgetInputEvent;
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class WidgetKeyboardEvent;
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enum ScreenRotation : uint8_t;
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enum class ColorScheme : uint8_t;
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enum class NativeKeyBindingsType : uint8_t;
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enum class WindowButtonType : uint8_t;
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struct FontRange;
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struct SwipeEventQueue;
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enum class HapticFeedbackType : uint8_t {
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ShortPress = 0,
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LongPress = 1,
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TextHandleMove = 2,
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End, // Not a feedback type, only to mark the upper boundary
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};
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enum class WindowShadow : uint8_t {
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None,
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Menu,
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Panel,
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Tooltip,
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};
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namespace dom {
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class BrowserChild;
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enum class CallerType : uint32_t;
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} // namespace dom
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class WindowRenderer;
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namespace gfx {
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class DrawTarget;
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class SourceSurface;
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} // namespace gfx
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namespace layers {
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class APZEventState;
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class AsyncDragMetrics;
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class Compositor;
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class CompositorBridgeChild;
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class CompositorBridgeParent;
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class CompositorOptions;
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class CompositorSession;
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class GeckoContentController;
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class IAPZCTreeManager;
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class ImageContainer;
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class LayerManager;
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class NativeLayer;
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class NativeLayerRoot;
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class RemoteCompositorSession;
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class WebRenderBridgeChild;
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class WebRenderLayerManager;
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struct APZEventResult;
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struct CompositorScrollUpdate;
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struct FrameMetrics;
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struct ScrollableLayerGuid;
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} // namespace layers
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namespace widget {
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enum class ThemeChangeKind : uint8_t;
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enum class OcclusionState : uint8_t;
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class TextEventDispatcher;
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class TextEventDispatcherListener;
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class LocalesChangedObserver;
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class WidgetShutdownObserver;
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class CompositorWidget;
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class CompositorWidgetInitData;
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class CompositorWidgetDelegate;
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class InProcessCompositorWidget;
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class WidgetRenderingContext;
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class Screen;
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} // namespace widget
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namespace wr {
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class DisplayListBuilder;
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class IpcResourceUpdateQueue;
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enum class RenderRoot : uint8_t;
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} // namespace wr
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#ifdef ACCESSIBILITY
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namespace a11y {
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class LocalAccessible;
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}
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#endif
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} // namespace mozilla
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/**
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* Callback function that processes events.
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*
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* The argument is actually a subtype (subclass) of WidgetEvent which carries
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* platform specific information about the event. Platform specific code
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* knows how to deal with it.
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*
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* The return value determines whether or not the default action should take
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* place.
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*/
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typedef nsEventStatus (*EVENT_CALLBACK)(mozilla::WidgetGUIEvent* aEvent);
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// Hide the native window system's real window type so as to avoid
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// including native window system types and APIs. This is necessary
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// to ensure cross-platform code.
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typedef void* nsNativeWidget;
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/*
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* TouchPointerState states for SynthesizeNativeTouchPoint. Match
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* touch states in nsIDOMWindowUtils.idl.
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*/
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enum TouchPointerState : uint8_t {
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// The pointer is in a hover state above the digitizer
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TOUCH_HOVER = (1 << 0),
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// The pointer is in contact with the digitizer
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TOUCH_CONTACT = (1 << 1),
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// The pointer has been removed from the digitizer detection area
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TOUCH_REMOVE = (1 << 2),
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// The pointer has been canceled. Will cancel any pending os level
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// gestures that would triggered as a result of completion of the
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// input sequence. This may not cancel moz platform related events
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// that might get tirggered by input already delivered.
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TOUCH_CANCEL = (1 << 3),
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// ALL_BITS used for validity checking during IPC serialization
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ALL_BITS = (1 << 4) - 1
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};
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/**
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* Values for the GetNativeData function
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*/
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#define NS_NATIVE_WINDOW 0
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#define NS_NATIVE_GRAPHIC 1
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#define NS_NATIVE_WIDGET 3
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#define NS_NATIVE_REGION 5
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#define NS_NATIVE_OFFSETX 6
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#define NS_NATIVE_OFFSETY 7
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#define NS_NATIVE_SCREEN 9
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// The toplevel GtkWidget containing this nsIWidget:
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#define NS_NATIVE_SHELLWIDGET 10
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#define NS_NATIVE_OPENGL_CONTEXT 12
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// This is available only with GetNativeData() in parent process. Anybody
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// shouldn't access this pointer as a valid pointer since the result may be
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// special value like NS_ONLY_ONE_NATIVE_IME_CONTEXT. So, the result is just
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// an identifier of distinguishing a text composition is caused by which native
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// IME context. Note that the result is only valid in the process. So,
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// XP code should use nsIWidget::GetNativeIMEContext() instead of using this.
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#define NS_RAW_NATIVE_IME_CONTEXT 14
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#define NS_NATIVE_WINDOW_WEBRTC_DEVICE_ID 15
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#ifdef XP_WIN
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# define NS_NATIVE_ICOREWINDOW 103 // winrt specific
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#endif
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#if defined(MOZ_WIDGET_GTK)
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# define NS_NATIVE_EGL_WINDOW 106
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#endif
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#ifdef MOZ_WIDGET_ANDROID
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# define NS_JAVA_SURFACE 100
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#endif
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#define MOZ_WIDGET_MAX_SIZE 16384
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// Must be kept in sync with xpcom/rust/xpcom/src/interfaces/nonidl.rs
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#define NS_IWIDGET_IID \
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{0x06396bf6, 0x2dd8, 0x45e5, {0xac, 0x45, 0x75, 0x26, 0x53, 0xb1, 0xc9, 0x80}}
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/**
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* Cursor types.
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*/
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enum nsCursor { ///(normal cursor, usually rendered as an arrow)
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eCursor_standard,
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///(system is busy, usually rendered as a hourglass or watch)
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eCursor_wait,
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///(Selecting something, usually rendered as an IBeam)
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eCursor_select,
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///(can hyper-link, usually rendered as a human hand)
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eCursor_hyperlink,
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///(north/south/west/east edge sizing)
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eCursor_n_resize,
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eCursor_s_resize,
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eCursor_w_resize,
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eCursor_e_resize,
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///(corner sizing)
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eCursor_nw_resize,
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eCursor_se_resize,
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eCursor_ne_resize,
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eCursor_sw_resize,
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eCursor_crosshair,
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eCursor_move,
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eCursor_help,
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eCursor_copy, // CSS3
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eCursor_alias,
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eCursor_context_menu,
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eCursor_cell,
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eCursor_grab,
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eCursor_grabbing,
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eCursor_spinning,
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eCursor_zoom_in,
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eCursor_zoom_out,
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eCursor_not_allowed,
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eCursor_col_resize,
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eCursor_row_resize,
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eCursor_no_drop,
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eCursor_vertical_text,
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eCursor_all_scroll,
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eCursor_nesw_resize,
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eCursor_nwse_resize,
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eCursor_ns_resize,
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eCursor_ew_resize,
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eCursor_none,
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// This one is used for array sizing, and so better be the last
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// one in this list...
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eCursorCount,
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};
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/**
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* Before the OS goes to sleep, this topic is notified.
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*/
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#define NS_WIDGET_SLEEP_OBSERVER_TOPIC "sleep_notification"
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/**
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* After the OS wakes up, this topic is notified.
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*/
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#define NS_WIDGET_WAKE_OBSERVER_TOPIC "wake_notification"
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/**
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* Before the OS suspends the current process, this topic is notified. Some
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* OS will kill processes that are suspended instead of resuming them.
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* For that reason this topic may be useful to safely close down resources.
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*/
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#define NS_WIDGET_SUSPEND_PROCESS_OBSERVER_TOPIC "suspend_process_notification"
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/**
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* After the current process resumes from being suspended, this topic is
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* notified.
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*/
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#define NS_WIDGET_RESUME_PROCESS_OBSERVER_TOPIC "resume_process_notification"
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/**
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* When an app(-shell) is activated by the OS, this topic is notified.
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* Currently, this only happens on Mac OSX.
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*/
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#define NS_WIDGET_MAC_APP_ACTIVATE_OBSERVER_TOPIC "mac_app_activate"
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namespace mozilla::widget {
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/**
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* Size constraints for setting the minimum and maximum size of a widget.
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* Values are in desktop pixels, so they do not depend on the widget's
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* current backing scale factor. Each widget implementation converts to
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* its native coordinate system using its own scale factor when applying
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* the constraints.
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*/
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struct SizeConstraints {
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SizeConstraints() : mMaxSize(MOZ_WIDGET_MAX_SIZE, MOZ_WIDGET_MAX_SIZE) {}
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SizeConstraints(mozilla::DesktopIntSize aMinSize,
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mozilla::DesktopIntSize aMaxSize)
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: mMinSize(aMinSize), mMaxSize(aMaxSize) {
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if (mMaxSize.width > MOZ_WIDGET_MAX_SIZE) {
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mMaxSize.width = MOZ_WIDGET_MAX_SIZE;
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}
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if (mMaxSize.height > MOZ_WIDGET_MAX_SIZE) {
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mMaxSize.height = MOZ_WIDGET_MAX_SIZE;
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}
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}
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mozilla::DesktopIntSize mMinSize;
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mozilla::DesktopIntSize mMaxSize;
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};
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class MOZ_RAII AutoSynthesizedEventCallbackNotifier final {
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public:
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explicit AutoSynthesizedEventCallbackNotifier(
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nsISynthesizedEventCallback* aCallback)
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: mCallback(aCallback) {}
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void SkipNotification() { mCallback = nullptr; }
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Maybe<uint64_t> SaveCallback() {
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if (!mCallback) {
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return Nothing();
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}
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uint64_t callbackId = ++sCallbackId;
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sSavedCallbacks.InsertOrUpdate(callbackId, mCallback);
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SkipNotification();
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return Some(callbackId);
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}
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~AutoSynthesizedEventCallbackNotifier() {
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if (mCallback) {
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mCallback->OnCompleteDispatch();
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}
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}
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static void NotifySavedCallback(const uint64_t& aCallbackId) {
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MOZ_ASSERT(aCallbackId > 0, "Callback ID must be non-zero");
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auto entry = sSavedCallbacks.Extract(aCallbackId);
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if (!entry) {
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MOZ_ASSERT_UNREACHABLE("We should always find a saved callback");
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return;
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}
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entry.value()->OnCompleteDispatch();
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}
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private:
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nsCOMPtr<nsISynthesizedEventCallback> mCallback;
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static uint64_t sCallbackId;
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static nsTHashMap<uint64_t, nsCOMPtr<nsISynthesizedEventCallback>>
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sSavedCallbacks;
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};
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} // namespace mozilla::widget
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/**
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* The base class for all the widgets. It provides the interface for
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* all basic and necessary functionality.
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*/
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class nsIWidget : public nsSupportsWeakReference {
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public:
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template <class EventType, class InputType>
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friend class DispatchEventOnMainThread;
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friend class mozilla::widget::InProcessCompositorWidget;
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friend class mozilla::layers::RemoteCompositorSession;
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typedef mozilla::gfx::DrawTarget DrawTarget;
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typedef mozilla::gfx::SourceSurface SourceSurface;
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typedef mozilla::layers::CompositorBridgeChild CompositorBridgeChild;
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typedef mozilla::layers::CompositorBridgeParent CompositorBridgeParent;
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typedef mozilla::layers::IAPZCTreeManager IAPZCTreeManager;
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typedef mozilla::layers::GeckoContentController GeckoContentController;
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typedef mozilla::layers::ScrollableLayerGuid ScrollableLayerGuid;
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typedef mozilla::layers::APZEventState APZEventState;
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typedef mozilla::CSSIntRect CSSIntRect;
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typedef mozilla::ScreenRotation ScreenRotation;
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typedef mozilla::widget::CompositorWidgetDelegate CompositorWidgetDelegate;
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typedef mozilla::layers::CompositorSession CompositorSession;
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typedef mozilla::layers::ImageContainer ImageContainer;
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typedef mozilla::dom::BrowserChild BrowserChild;
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typedef mozilla::layers::AsyncDragMetrics AsyncDragMetrics;
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typedef mozilla::layers::FrameMetrics FrameMetrics;
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typedef mozilla::layers::LayerManager LayerManager;
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typedef mozilla::WindowRenderer WindowRenderer;
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typedef mozilla::layers::LayersBackend LayersBackend;
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typedef mozilla::layers::LayersId LayersId;
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typedef mozilla::layers::ZoomConstraints ZoomConstraints;
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typedef mozilla::widget::IMEEnabled IMEEnabled;
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typedef mozilla::widget::IMEMessage IMEMessage;
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typedef mozilla::widget::IMENotification IMENotification;
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typedef mozilla::widget::IMENotificationRequest IMENotificationRequest;
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typedef mozilla::widget::IMENotificationRequests IMENotificationRequests;
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typedef mozilla::widget::IMEState IMEState;
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typedef mozilla::widget::InputContext InputContext;
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typedef mozilla::widget::InputContextAction InputContextAction;
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typedef mozilla::widget::NativeIMEContext NativeIMEContext;
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typedef mozilla::widget::SizeConstraints SizeConstraints;
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typedef mozilla::widget::TextEventDispatcher TextEventDispatcher;
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typedef mozilla::widget::TextEventDispatcherListener
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TextEventDispatcherListener;
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typedef mozilla::LayoutDeviceMargin LayoutDeviceMargin;
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typedef mozilla::LayoutDeviceIntMargin LayoutDeviceIntMargin;
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typedef mozilla::LayoutDeviceIntPoint LayoutDeviceIntPoint;
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typedef mozilla::LayoutDeviceIntRect LayoutDeviceIntRect;
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typedef mozilla::LayoutDeviceRect LayoutDeviceRect;
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typedef mozilla::LayoutDeviceIntRegion LayoutDeviceIntRegion;
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typedef mozilla::LayoutDeviceIntSize LayoutDeviceIntSize;
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typedef mozilla::ScreenIntPoint ScreenIntPoint;
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typedef mozilla::ScreenIntMargin ScreenIntMargin;
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typedef mozilla::ScreenIntSize ScreenIntSize;
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typedef mozilla::ScreenPoint ScreenPoint;
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typedef mozilla::CSSToScreenScale CSSToScreenScale;
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typedef mozilla::DesktopIntRect DesktopIntRect;
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typedef mozilla::DesktopPoint DesktopPoint;
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typedef mozilla::DesktopIntPoint DesktopIntPoint;
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typedef mozilla::DesktopIntSize DesktopIntSize;
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typedef mozilla::DesktopIntMargin DesktopIntMargin;
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typedef mozilla::DesktopRect DesktopRect;
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typedef mozilla::DesktopSize DesktopSize;
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typedef mozilla::CSSPoint CSSPoint;
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typedef mozilla::CSSRect CSSRect;
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NS_DECL_THREADSAFE_ISUPPORTS
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using TouchPointerState = ::TouchPointerState;
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using InitData = mozilla::widget::InitData;
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using WindowType = mozilla::widget::WindowType;
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using PopupType = mozilla::widget::PopupType;
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using PopupLevel = mozilla::widget::PopupLevel;
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using BorderStyle = mozilla::widget::BorderStyle;
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using TransparencyMode = mozilla::widget::TransparencyMode;
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// Used in UpdateThemeGeometries.
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struct ThemeGeometry {
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// The ThemeGeometryType value for the themed widget, see
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// nsITheme::ThemeGeometryTypeForWidget.
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nsITheme::ThemeGeometryType mType;
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// The device-pixel rect within the window for the themed widget
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LayoutDeviceIntRect mRect;
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ThemeGeometry(nsITheme::ThemeGeometryType aType,
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const LayoutDeviceIntRect& aRect)
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: mType(aType), mRect(aRect) {}
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};
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NS_INLINE_DECL_STATIC_IID(NS_IWIDGET_IID)
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/**
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* Create and initialize a widget.
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*
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* All the arguments can be null in which case a top level window
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* with size 0 is created. The event callback function has to be
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* provided only if the caller wants to deal with the events this
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* widget receives. The event callback is basically a preprocess
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* hook called synchronously. The return value determines whether
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* the event goes to the default window procedure or it is hidden
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* to the os. The assumption is that if the event handler returns
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* false the widget does not see the event. The widget should not
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* automatically clear the window to the background color. The
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* calling code must handle paint messages and clear the background
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* itself.
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*
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* If aParent is null, the widget isn't parented (e.g. context menus or
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* independent top level windows).
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*
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* The dimensions given in aRect are specified in the parent's
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* device coordinate system.
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* This must not be called for parentless widgets such as top-level
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* windows, which use the desktop pixel coordinate system; a separate
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* method is provided for these.
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*
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* @param aParent parent nsIWidget
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* @param aRect the widget dimension
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* @param aInitData data that is used for widget initialization
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*
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*/
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[[nodiscard]] virtual nsresult Create(nsIWidget* aParent,
|
|
const LayoutDeviceIntRect& aRect,
|
|
const InitData&) = 0;
|
|
|
|
/*
|
|
* As above, but with aRect specified in DesktopPixel units (for top-level
|
|
* widgets).
|
|
* Default implementation just converts aRect to device pixels and calls
|
|
* through to device-pixel Create, but platforms may override this if the
|
|
* mapping is not straightforward or the native platform needs to use the
|
|
* desktop pixel values directly.
|
|
*/
|
|
[[nodiscard]] virtual nsresult Create(nsIWidget* aParent,
|
|
const DesktopIntRect& aRect,
|
|
const InitData& aInitData) {
|
|
LayoutDeviceIntRect devPixRect =
|
|
RoundedToInt(aRect * GetDesktopToDeviceScale());
|
|
return Create(aParent, devPixRect, aInitData);
|
|
}
|
|
|
|
/**
|
|
* Allocate, initialize, and return a widget that is a child of
|
|
* |this|. The returned widget (if nonnull) has gone through the
|
|
* equivalent of CreateInstance(widgetCID) + Create(...).
|
|
*
|
|
* |CreateChild()| lets widget backends decide whether to parent
|
|
* the new child widget to this, nonnatively parent it, or both.
|
|
* This interface exists to support the PuppetWidget backend,
|
|
* which is entirely non-native. All other params are the same as
|
|
* for |Create()|.
|
|
*/
|
|
already_AddRefed<nsIWidget> CreateChild(const LayoutDeviceIntRect& aRect,
|
|
const InitData&);
|
|
|
|
/**
|
|
* Accessor functions to get and set the attached listener.
|
|
*/
|
|
void SetAttachedWidgetListener(nsIWidgetListener* aListener) {
|
|
mAttachedWidgetListener = aListener;
|
|
}
|
|
nsIWidgetListener* GetAttachedWidgetListener() const {
|
|
return mAttachedWidgetListener;
|
|
}
|
|
void SetPreviouslyAttachedWidgetListener(nsIWidgetListener* aListener) {
|
|
mPreviouslyAttachedWidgetListener = aListener;
|
|
}
|
|
nsIWidgetListener* GetPreviouslyAttachedWidgetListener() {
|
|
return mPreviouslyAttachedWidgetListener;
|
|
}
|
|
|
|
/**
|
|
* Notifies the root widget of a non-blank paint.
|
|
*/
|
|
virtual void DidGetNonBlankPaint() {}
|
|
|
|
/**
|
|
* Accessor functions to get and set the listener which handles various
|
|
* actions for the widget.
|
|
*/
|
|
nsIWidgetListener* GetWidgetListener() const { return mWidgetListener; }
|
|
void SetWidgetListener(nsIWidgetListener* aListener) {
|
|
mWidgetListener = aListener;
|
|
}
|
|
|
|
/** Returns the listener used for painting */
|
|
nsIWidgetListener* GetPaintListener() const;
|
|
|
|
/**
|
|
* Close and destroy the internal native window.
|
|
* This method does not delete the widget.
|
|
*/
|
|
|
|
virtual void Destroy();
|
|
|
|
/**
|
|
* Destroyed() returns true if Destroy() has been called already.
|
|
* Otherwise, false.
|
|
*/
|
|
bool Destroyed() const { return mOnDestroyCalled; }
|
|
|
|
/** Clear the widget's parent. */
|
|
void ClearParent();
|
|
|
|
/**
|
|
* Return the parent Widget of this Widget or nullptr if this is a
|
|
* top level window
|
|
*
|
|
* @return the parent widget or nullptr if it does not have a parent
|
|
*
|
|
*/
|
|
nsIWidget* GetParent() const { return mParent; }
|
|
|
|
/** Gets called when mParent is cleared. */
|
|
virtual void DidClearParent(nsIWidget* aOldParent) {}
|
|
|
|
/**
|
|
* Return the top level Widget of this Widget
|
|
*
|
|
* @return the closest top level widget, as in IsTopLevelWidget().
|
|
*/
|
|
nsIWidget* GetTopLevelWidget();
|
|
bool IsTopLevelWidget() const {
|
|
return mWindowType == WindowType::TopLevel ||
|
|
mWindowType == WindowType::Dialog ||
|
|
mWindowType == WindowType::Invisible;
|
|
}
|
|
|
|
/**
|
|
* Return the physical DPI of the screen containing the window ...
|
|
* the number of device pixels per inch.
|
|
*/
|
|
virtual float GetDPI();
|
|
|
|
/**
|
|
* Fallback DPI for when there's no widget available.
|
|
*/
|
|
static float GetFallbackDPI();
|
|
|
|
/**
|
|
* Return the scaling factor between device pixels and the platform-
|
|
* dependent "desktop pixels" used to manage window positions on a
|
|
* potentially multi-screen, mixed-resolution desktop.
|
|
*/
|
|
virtual mozilla::DesktopToLayoutDeviceScale GetDesktopToDeviceScale() const {
|
|
return mozilla::DesktopToLayoutDeviceScale(1.0);
|
|
}
|
|
|
|
// Utility function for derived-class overrides of ConstrainPosition.
|
|
static DesktopIntPoint ConstrainPositionToBounds(
|
|
const DesktopIntPoint&, const mozilla::DesktopIntSize&,
|
|
const DesktopIntRect&);
|
|
|
|
void DynamicToolbarOffsetChanged(mozilla::ScreenIntCoord aOffset);
|
|
|
|
/**
|
|
* Return the default scale factor for the window. This is the
|
|
* default number of device pixels per CSS pixel to use. This should
|
|
* depend on OS/platform settings such as the Mac's "UI scale factor"
|
|
* or Windows' "font DPI". This will take into account Gecko preferences
|
|
* overriding the system setting.
|
|
*/
|
|
mozilla::CSSToLayoutDeviceScale GetDefaultScale();
|
|
|
|
/**
|
|
* Fallback default scale for when there's no widget available.
|
|
*/
|
|
static mozilla::CSSToLayoutDeviceScale GetFallbackDefaultScale();
|
|
|
|
/**
|
|
* Return the first child of this widget. Will return null if
|
|
* there are no children.
|
|
*/
|
|
nsIWidget* GetFirstChild() const { return mFirstChild; }
|
|
|
|
/**
|
|
* Return the last child of this widget. Will return null if
|
|
* there are no children.
|
|
*/
|
|
nsIWidget* GetLastChild() const { return mLastChild; }
|
|
|
|
/**
|
|
* Return the next sibling of this widget
|
|
*/
|
|
nsIWidget* GetNextSibling() const { return mNextSibling; }
|
|
|
|
/**
|
|
* Set the next sibling of this widget
|
|
*/
|
|
void SetNextSibling(nsIWidget* aSibling) { mNextSibling = aSibling; }
|
|
|
|
/**
|
|
* Return the previous sibling of this widget
|
|
*/
|
|
nsIWidget* GetPrevSibling() const { return mPrevSibling; }
|
|
|
|
/**
|
|
* Set the previous sibling of this widget
|
|
*/
|
|
void SetPrevSibling(nsIWidget* aSibling) { mPrevSibling = aSibling; }
|
|
|
|
/**
|
|
* Show or hide this widget
|
|
*
|
|
* @param aState true to show the Widget, false to hide it
|
|
*
|
|
*/
|
|
virtual void Show(bool aState) = 0;
|
|
|
|
/**
|
|
* Whether or not a widget must be recreated after being hidden to show
|
|
* again properly.
|
|
*/
|
|
virtual bool NeedsRecreateToReshow() { return false; }
|
|
|
|
/**
|
|
* Make the window modal.
|
|
*/
|
|
virtual void SetModal(bool aModal) {}
|
|
|
|
/**
|
|
* Are we app modal. Currently only implemented on Cocoa.
|
|
*/
|
|
virtual bool IsRunningAppModal() { return false; }
|
|
|
|
/**
|
|
* The maximum number of simultaneous touch contacts supported by the device.
|
|
* In the case of devices with multiple digitizers (e.g. multiple touch
|
|
* screens), the value will be the maximum of the set of maximum supported
|
|
* contacts by each individual digitizer.
|
|
*/
|
|
virtual uint32_t GetMaxTouchPoints() const;
|
|
|
|
/**
|
|
* Returns whether the window is visible
|
|
*
|
|
*/
|
|
virtual bool IsVisible() const = 0;
|
|
|
|
/**
|
|
* Perform platform-dependent sanity check on a potential window position.
|
|
* This is guaranteed to work only for top-level windows.
|
|
*/
|
|
virtual void ConstrainPosition(DesktopIntPoint&) {}
|
|
|
|
/**
|
|
* NOTE:
|
|
*
|
|
* For a top-level window widget, the "parent's coordinate system" is the
|
|
* "global" display pixel coordinate space, *not* device pixels (which
|
|
* may be inconsistent between multiple screens, at least in the Mac OS
|
|
* case with mixed hi-dpi and lo-dpi displays). This applies to all the
|
|
* following Move and Resize widget APIs.
|
|
*
|
|
* The display-/device-pixel distinction becomes important for (at least)
|
|
* macOS with Hi-DPI (retina) displays, and Windows when the UI scale factor
|
|
* is set to other than 100%.
|
|
*
|
|
* The Move and Resize methods take floating-point parameters, rather than
|
|
* integer ones. This is important when manipulating top-level widgets,
|
|
* where the coordinate system may not be an integral multiple of the
|
|
* device-pixel space.
|
|
**/
|
|
|
|
/**
|
|
* Move this widget.
|
|
*
|
|
* Coordinates refer to the top-left of the widget. For toplevel windows
|
|
* with decorations, this is the top-left of the titlebar and frame .
|
|
*
|
|
* @param aX the new x position expressed in the parent's coordinate system
|
|
* @param aY the new y position expressed in the parent's coordinate system
|
|
*
|
|
**/
|
|
virtual void Move(const DesktopPoint&) = 0;
|
|
|
|
/**
|
|
* Reposition this widget so that the client area has the given offset.
|
|
*
|
|
* @param aOffset the new offset of the client area expressed as an
|
|
* offset from the origin of the client area of the parent
|
|
* widget (for root widgets and popup widgets it is in
|
|
* screen coordinates)
|
|
**/
|
|
void MoveClient(const DesktopPoint& aOffset);
|
|
|
|
/**
|
|
* Resize this widget. Any size constraints set for the window by a
|
|
* previous call to SetSizeConstraints will be applied.
|
|
*
|
|
* @param aWidth the new width expressed in the parent's coordinate system
|
|
* @param aHeight the new height expressed in the parent's coordinate
|
|
* system
|
|
* @param aRepaint whether the widget should be repainted
|
|
*/
|
|
virtual void Resize(const DesktopSize&, bool aRepaint) = 0;
|
|
|
|
/**
|
|
* Lock the aspect ratio of a Window
|
|
* @param aShouldLock bool
|
|
*/
|
|
virtual void LockAspectRatio(bool aShouldLock) {}
|
|
|
|
/**
|
|
* Move or resize this widget. Any size constraints set for the window by
|
|
* a previous call to SetSizeConstraints will be applied.
|
|
*
|
|
* @param aRepaint whether the widget should be repainted if the size
|
|
* changes
|
|
*
|
|
*/
|
|
virtual void Resize(const DesktopRect&, bool aRepaint) = 0;
|
|
|
|
/**
|
|
* Resize the widget so that the inner client area has the given size.
|
|
*
|
|
* @param aSize the new size of the client area.
|
|
* @param aRepaint whether the widget should be repainted
|
|
*/
|
|
void ResizeClient(const DesktopSize& aSize, bool aRepaint);
|
|
|
|
/**
|
|
* Resize and reposition the widget so tht inner client area has the given
|
|
* offset and size.
|
|
*
|
|
* @param aRect the new offset and size of the client area. The offset is
|
|
* expressed as an offset from the origin of the client area
|
|
* of the parent widget (for root widgets and popup widgets it
|
|
* is in screen coordinates).
|
|
* @param aRepaint whether the widget should be repainted
|
|
*/
|
|
void ResizeClient(const DesktopRect& aRect, bool aRepaint);
|
|
|
|
/**
|
|
* Minimize, maximize or normalize the window size.
|
|
* Takes a value from nsSizeMode (see nsIWidgetListener.h)
|
|
*/
|
|
virtual void SetSizeMode(nsSizeMode aMode) = 0;
|
|
|
|
virtual void GetWorkspaceID(nsAString& aWorkspaceID) {
|
|
aWorkspaceID.Truncate();
|
|
}
|
|
|
|
virtual void MoveToWorkspace(const nsAString& aWorkspaceID) {}
|
|
|
|
// Assume that it is not, since most widgets are not cloaked.
|
|
virtual bool IsCloaked() const { return false; }
|
|
|
|
/**
|
|
* Suppress animations that are applied to a window by OS.
|
|
*/
|
|
virtual void SuppressAnimation(bool aSuppress) {}
|
|
|
|
/** Sets windows-specific mica backdrop on this widget. */
|
|
virtual void SetMicaBackdrop(bool) {}
|
|
|
|
/**
|
|
* Return size mode (minimized, maximized, normalized).
|
|
* Returns a value from nsSizeMode (see nsIWidgetListener.h)
|
|
*/
|
|
virtual nsSizeMode SizeMode() = 0;
|
|
|
|
/** Ask whether the window is tiled. */
|
|
bool IsTiled() const { return mIsTiled; }
|
|
/** Ask whether the widget is fully occluded */
|
|
bool IsFullyOccluded() const { return mIsFullyOccluded; }
|
|
|
|
/**
|
|
* Enable or disable this Widget
|
|
*
|
|
* @param aState true to enable the Widget, false to disable it.
|
|
*/
|
|
virtual void Enable(bool aState) = 0;
|
|
|
|
/**
|
|
* Ask whether the widget is enabled
|
|
*/
|
|
virtual bool IsEnabled() const = 0;
|
|
|
|
/*
|
|
* Whether we should request activation of this widget's toplevel window.
|
|
*/
|
|
enum class Raise {
|
|
No,
|
|
Yes,
|
|
};
|
|
|
|
/**
|
|
* Request activation of this window or give focus to this widget.
|
|
*/
|
|
virtual void SetFocus(Raise, mozilla::dom::CallerType aCallerType) = 0;
|
|
|
|
/**
|
|
* Get this widget's outside dimensions relative to its parent widget. For
|
|
* popup widgets the returned rect is in screen coordinates and not
|
|
* relative to its parent widget.
|
|
*
|
|
* @return the x, y, width and height of this widget.
|
|
*/
|
|
virtual LayoutDeviceIntRect GetBounds() = 0;
|
|
|
|
/**
|
|
* Get this widget's outside dimensions in device coordinates. This
|
|
* includes any title bar on the window.
|
|
*
|
|
* @return the x, y, width and height of this widget.
|
|
*/
|
|
virtual LayoutDeviceIntRect GetScreenBounds() { return GetBounds(); }
|
|
|
|
/**
|
|
* Similar to GetScreenBounds except that this function will always
|
|
* get the size when the widget is in the nsSizeMode_Normal size mode
|
|
* even if the current size mode is not nsSizeMode_Normal.
|
|
*
|
|
* If PersistClientBounds() is true, then the returned size are client sizes.
|
|
*
|
|
* This method will fail if the size mode is not nsSizeMode_Normal and
|
|
* the platform doesn't have the ability.
|
|
* This method will always succeed if the current size mode is
|
|
* nsSizeMode_Normal.
|
|
*
|
|
* @param aRect On return it holds the x, y, width and height of
|
|
* this widget.
|
|
*/
|
|
[[nodiscard]] virtual nsresult GetRestoredBounds(LayoutDeviceIntRect& aRect);
|
|
|
|
/**
|
|
* On some platforms (namely, GTK), we can't know the bounds of the client
|
|
* decorations before actually showing the window. For that reason, we instead
|
|
* persist client (inner) sizes.
|
|
*/
|
|
virtual bool PersistClientBounds() const { return false; }
|
|
|
|
/**
|
|
* Get this widget's client area bounds, if the window has a 3D border
|
|
* appearance this returns the area inside the border. The position is the
|
|
* position of the client area relative to the client area of the parent
|
|
* widget (for root widgets and popup widgets it is in screen coordinates).
|
|
*
|
|
* @return the x, y, width and height of the client area of this widget.
|
|
*/
|
|
virtual LayoutDeviceIntRect GetClientBounds() { return GetBounds(); }
|
|
|
|
/** Whether to extend the client area into the titlebar. */
|
|
virtual void SetCustomTitlebar(bool) {}
|
|
|
|
/**
|
|
* Sets the region around the edges of the window that can be dragged to
|
|
* resize the window. All four sides of the window will get the same margin.
|
|
*/
|
|
virtual void SetResizeMargin(mozilla::LayoutDeviceIntCoord) {}
|
|
|
|
/**
|
|
* Get the client offset from the window origin.
|
|
*
|
|
* @return the x and y of the offset.
|
|
*/
|
|
virtual LayoutDeviceIntPoint GetClientOffset();
|
|
|
|
/**
|
|
* Returns the slop from the screen edges in device pixels.
|
|
* @see Window.screenEdgeSlop{X,Y}
|
|
*/
|
|
virtual LayoutDeviceIntPoint GetScreenEdgeSlop() { return {}; }
|
|
|
|
/**
|
|
* Equivalent to GetClientBounds but only returns the size.
|
|
*/
|
|
virtual LayoutDeviceIntSize GetClientSize() {
|
|
// Depending on the backend, overloading this method may be useful if
|
|
// requesting the client offset is expensive.
|
|
return GetClientBounds().Size();
|
|
}
|
|
|
|
/**
|
|
* Set the native background color for this widget.
|
|
*
|
|
* Deprecated. Currently only implemented for iOS. (See bug 1901896.)
|
|
*
|
|
* @param aColor the new background color
|
|
*/
|
|
|
|
virtual void SetBackgroundColor(const nscolor& aColor) {}
|
|
|
|
struct Cursor {
|
|
// The system cursor chosen by the page. This is used if there's no custom
|
|
// cursor, or if we fail to use the custom cursor in some way (if the image
|
|
// fails to load, for example).
|
|
nsCursor mDefaultCursor = eCursor_standard;
|
|
// May be null, to represent no custom cursor image.
|
|
nsCOMPtr<imgIContainer> mContainer;
|
|
uint32_t mHotspotX = 0;
|
|
uint32_t mHotspotY = 0;
|
|
mozilla::ImageResolution mResolution;
|
|
|
|
bool IsCustom() const { return !!mContainer; }
|
|
|
|
bool operator==(const Cursor& aOther) const {
|
|
return mDefaultCursor == aOther.mDefaultCursor &&
|
|
mContainer.get() == aOther.mContainer.get() &&
|
|
mHotspotX == aOther.mHotspotX && mHotspotY == aOther.mHotspotY &&
|
|
mResolution == aOther.mResolution;
|
|
}
|
|
|
|
bool operator!=(const Cursor& aOther) const { return !(*this == aOther); }
|
|
};
|
|
|
|
/**
|
|
* Sets the cursor for this widget.
|
|
*/
|
|
virtual void SetCursor(const Cursor&);
|
|
virtual void SetCustomCursorAllowed(bool);
|
|
/**
|
|
* If a cursor type is currently cached locally for this widget, clear the
|
|
* cached cursor to force an update on the next SetCursor call.
|
|
*/
|
|
void ClearCachedCursor() {
|
|
mCursor = {};
|
|
mUpdateCursor = true;
|
|
}
|
|
|
|
static nsIntSize CustomCursorSize(const Cursor&);
|
|
|
|
/**
|
|
* Get the window type of this widget.
|
|
*/
|
|
WindowType GetWindowType() const { return mWindowType; }
|
|
PopupType GetPopupType() const { return mPopupType; }
|
|
bool HasRemoteContent() const { return mHasRemoteContent; }
|
|
|
|
/**
|
|
* Set the transparency mode of the top-level window containing this widget.
|
|
* So, e.g., if you call this on the widget for an IFRAME, the top level
|
|
* browser window containing the IFRAME actually gets set. Be careful.
|
|
*
|
|
* This can fail if the platform doesn't support
|
|
* transparency/glass. By default widgets are not
|
|
* transparent. This will also fail if the toplevel window is not
|
|
* a Mozilla window, e.g., if the widget is in an embedded
|
|
* context.
|
|
*
|
|
* After transparency/glass has been enabled, the initial alpha channel
|
|
* value for all pixels is 1, i.e., opaque.
|
|
* If the window is resized then the alpha channel values for
|
|
* all pixels are reset to 1.
|
|
* Pixel RGB color values are already premultiplied with alpha channel values.
|
|
*/
|
|
virtual void SetTransparencyMode(TransparencyMode aMode);
|
|
|
|
/**
|
|
* Get the transparency mode of the top-level window that contains this
|
|
* widget.
|
|
*/
|
|
virtual TransparencyMode GetTransparencyMode();
|
|
|
|
// Cocoa and GTK round widget coordinates to the nearest global "display
|
|
// pixel" integer value; see bug 892994. So we avoid fractional display pixel
|
|
// values by rounding to the nearest value that won't yield a fractional
|
|
// display pixel.
|
|
virtual int32_t RoundsWidgetCoordinatesTo() { return 1; }
|
|
static LayoutDeviceIntRect MaybeRoundToDisplayPixels(
|
|
const LayoutDeviceIntRect& aRect, TransparencyMode aTransparency,
|
|
int32_t aRound);
|
|
|
|
LayoutDeviceIntRect MaybeRoundToDisplayPixels(
|
|
const LayoutDeviceIntRect& aRect) {
|
|
return MaybeRoundToDisplayPixels(aRect, GetTransparencyMode(),
|
|
RoundsWidgetCoordinatesTo());
|
|
}
|
|
|
|
/**
|
|
* Set the shadow style of the window.
|
|
*
|
|
* Ignored on child widgets and on non-Mac platforms.
|
|
*/
|
|
virtual void SetWindowShadowStyle(mozilla::WindowShadow aStyle) {}
|
|
|
|
/**
|
|
* Set the opacity of the window.
|
|
* Values need to be between 0.0f (invisible) and 1.0f (fully opaque).
|
|
*
|
|
* Ignored on child widgets and on non-Mac platforms.
|
|
*/
|
|
virtual void SetWindowOpacity(float aOpacity) {}
|
|
|
|
/**
|
|
* Set the transform of the window. Values are in device pixels,
|
|
* the origin is the top left corner of the window.
|
|
*
|
|
* Ignored on child widgets and on non-Mac platforms.
|
|
*/
|
|
virtual void SetWindowTransform(const mozilla::gfx::Matrix& aTransform) {}
|
|
|
|
/**
|
|
* Set the preferred color-scheme for the widget. Nothing() means system
|
|
* default. Implemented on Windows and macOS.
|
|
*/
|
|
virtual void SetColorScheme(const mozilla::Maybe<mozilla::ColorScheme>&) {}
|
|
|
|
/**
|
|
* Set whether the window should ignore mouse events or not, and if it should
|
|
* not, what input margin should it use.
|
|
*
|
|
* This is only used on popup windows. The margin is only implemented on
|
|
* Linux.
|
|
*/
|
|
struct InputRegion {
|
|
bool mFullyTransparent = false;
|
|
mozilla::LayoutDeviceIntCoord mMargin = 0;
|
|
};
|
|
virtual void SetInputRegion(const InputRegion&) {}
|
|
|
|
/*
|
|
* On macOS, this method shows or hides the pill button in the titlebar
|
|
* that's used to collapse the toolbar.
|
|
*
|
|
* Ignored on child widgets and on non-Mac platforms.
|
|
*/
|
|
virtual void SetShowsToolbarButton(bool aShow) {}
|
|
|
|
/*
|
|
* On macOS, this method determines whether we tell cocoa that the window
|
|
* supports native full screen. If we do so, and another window is in
|
|
* native full screen, this window will also appear in native full screen.
|
|
*
|
|
* We generally only want to do this for primary application windows.
|
|
*
|
|
* Ignored on child widgets and on non-Mac platforms.
|
|
*/
|
|
virtual void SetSupportsNativeFullscreen(bool aSupportsNativeFullscreen) {}
|
|
|
|
enum WindowAnimationType {
|
|
eGenericWindowAnimation,
|
|
eDocumentWindowAnimation
|
|
};
|
|
|
|
/**
|
|
* Sets the kind of top-level window animation this widget should have. On
|
|
* macOS, this causes a particular kind of animation to be shown when the
|
|
* window is first made visible.
|
|
*
|
|
* Ignored on child widgets and on non-Mac platforms.
|
|
*/
|
|
virtual void SetWindowAnimationType(WindowAnimationType aType) {}
|
|
|
|
/**
|
|
* Specifies whether the titlebar separator should be hidden.
|
|
* Only implemented on macOS.
|
|
*/
|
|
virtual void SetHideTitlebarSeparator(bool) {}
|
|
|
|
// Returns whether the macOS titlebar direction is RTL instead of LTR.
|
|
// TODO(emilio): Maybe generalize to other OSes?
|
|
virtual bool IsMacTitlebarDirectionRTL() { return false; }
|
|
|
|
/**
|
|
* Hide window chrome (borders, buttons) for this widget.
|
|
*/
|
|
virtual void HideWindowChrome(bool aShouldHide) {}
|
|
|
|
enum FullscreenTransitionStage {
|
|
eBeforeFullscreenToggle,
|
|
eAfterFullscreenToggle
|
|
};
|
|
|
|
/**
|
|
* Prepares for fullscreen transition and returns whether the widget
|
|
* supports fullscreen transition. If this method returns false,
|
|
* PerformFullscreenTransition() must never be called. Otherwise,
|
|
* caller should call that method twice with "before" and "after"
|
|
* stages respectively in order. In the latter case, this method may
|
|
* return some data via aData pointer. Caller must pass that data to
|
|
* PerformFullscreenTransition() if any, and caller is responsible
|
|
* for releasing that data.
|
|
*/
|
|
virtual bool PrepareForFullscreenTransition(nsISupports** aData) {
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Performs fullscreen transition. This method returns immediately,
|
|
* and will post aCallback to the main thread when the transition
|
|
* finishes.
|
|
*/
|
|
virtual void PerformFullscreenTransition(FullscreenTransitionStage aStage,
|
|
uint16_t aDuration,
|
|
nsISupports* aData,
|
|
nsIRunnable* aCallback);
|
|
|
|
/**
|
|
* Perform any actions needed after the fullscreen transition has ended.
|
|
*/
|
|
virtual void CleanupFullscreenTransition() {}
|
|
|
|
/**
|
|
* Return the screen the widget is in, or null if we don't know.
|
|
*/
|
|
virtual already_AddRefed<mozilla::widget::Screen> GetWidgetScreen();
|
|
|
|
/**
|
|
* Put the toplevel window into or out of fullscreen mode.
|
|
*
|
|
* @return NS_OK if the widget is setup properly for fullscreen and
|
|
* FullscreenChanged callback has been or will be called. If other
|
|
* value is returned, the caller should continue the change itself.
|
|
*/
|
|
virtual nsresult MakeFullScreen(bool aFullScreen);
|
|
void InfallibleMakeFullScreen(bool aFullScreen);
|
|
|
|
/**
|
|
* Same as MakeFullScreen, except that, on systems which natively
|
|
* support fullscreen transition, calling this method explicitly
|
|
* requests that behavior.
|
|
* It is currently only supported on macOS 10.7+.
|
|
*/
|
|
virtual nsresult MakeFullScreenWithNativeTransition(bool aFullScreen) {
|
|
return MakeFullScreen(aFullScreen);
|
|
}
|
|
|
|
/**
|
|
* Invalidate a specified rect for a widget so that it will be repainted
|
|
* later.
|
|
*/
|
|
virtual void Invalidate(const LayoutDeviceIntRect& aRect) = 0;
|
|
|
|
enum LayerManagerPersistence {
|
|
LAYER_MANAGER_CURRENT = 0,
|
|
LAYER_MANAGER_PERSISTENT
|
|
};
|
|
|
|
/**
|
|
* Return the widget's LayerManager. The layer tree for that LayerManager is
|
|
* what gets rendered to the widget.
|
|
*
|
|
* Note that this tries to create a renderer if it doesn't exist.
|
|
*/
|
|
virtual WindowRenderer* GetWindowRenderer();
|
|
|
|
/**
|
|
* Returns whether there's an existing window renderer.
|
|
*/
|
|
bool HasWindowRenderer() const { return !!mWindowRenderer; }
|
|
|
|
/**
|
|
* Called before each layer manager transaction to allow any preparation
|
|
* for DrawWindowUnderlay/Overlay that needs to be on the main thread.
|
|
*
|
|
* Always called on the main thread.
|
|
*/
|
|
virtual void PrepareWindowEffects() {}
|
|
|
|
/**
|
|
* Called when Gecko knows which themed widgets exist in this window.
|
|
* The passed array contains an entry for every themed widget of the right
|
|
* type (currently only StyleAppearance::Toolbar) within the window, except
|
|
* for themed widgets which are transformed or have effects applied to them
|
|
* (e.g. CSS opacity or filters).
|
|
* This could sometimes be called during display list construction
|
|
* outside of painting.
|
|
* If called during painting, it will be called before we actually
|
|
* paint anything.
|
|
*/
|
|
virtual void UpdateThemeGeometries(const nsTArray<ThemeGeometry>&) {}
|
|
|
|
/**
|
|
* Informs the widget about the region of the window that is opaque.
|
|
*
|
|
* @param aOpaqueRegion the region of the window that is opaque.
|
|
*/
|
|
virtual void UpdateOpaqueRegion(const LayoutDeviceIntRegion& aOpaqueRegion) {}
|
|
virtual LayoutDeviceIntRegion GetOpaqueRegionForTesting() const { return {}; }
|
|
|
|
/**
|
|
* Informs the widget about the region of the window that is draggable.
|
|
*/
|
|
virtual void UpdateWindowDraggingRegion(
|
|
const LayoutDeviceIntRegion& aRegion) {}
|
|
|
|
/**
|
|
* Tells the widget whether the given input block results in a swipe.
|
|
* Should be called in response to a WidgetWheelEvent that has
|
|
* mFlags.mCanTriggerSwipe set on it.
|
|
*/
|
|
virtual void ReportSwipeStarted(uint64_t aInputBlockId, bool aStartSwipe);
|
|
|
|
// Returns true if |aPanInput| event was used for SwipeTracker, false
|
|
// otherwise.
|
|
bool MayStartSwipeForNonAPZ(const mozilla::PanGestureInput& aPanInput);
|
|
void TrackScrollEventAsSwipe(const mozilla::PanGestureInput& aSwipeStartEvent,
|
|
uint32_t aAllowedDirections,
|
|
uint64_t aInputBlockId);
|
|
struct SwipeInfo {
|
|
bool wantsSwipe;
|
|
uint32_t allowedDirections;
|
|
};
|
|
SwipeInfo SendMayStartSwipe(const mozilla::PanGestureInput& aSwipeStartEvent);
|
|
// Returns a WidgetWheelEvent which needs to be handled by APZ regardless of
|
|
// whether |aPanInput| event was used for SwipeTracker or not.
|
|
mozilla::WidgetWheelEvent MayStartSwipeForAPZ(
|
|
const mozilla::PanGestureInput& aPanInput,
|
|
const mozilla::layers::APZEventResult& aApzResult);
|
|
|
|
void NotifyWindowDestroyed();
|
|
void NotifySizeMoveDone();
|
|
using ByMoveToRect = nsIWidgetListener::ByMoveToRect;
|
|
void NotifyWindowMoved(const LayoutDeviceIntPoint&,
|
|
ByMoveToRect = ByMoveToRect::No);
|
|
void NotifyWindowMoved(const DesktopIntPoint&,
|
|
ByMoveToRect = ByMoveToRect::No);
|
|
// Should be called by derived implementations to notify on system color and
|
|
// theme changes. (Only one invocation per change is needed, not one
|
|
// invocation per change per window.)
|
|
void NotifyThemeChanged(mozilla::widget::ThemeChangeKind);
|
|
void NotifyAPZOfDPIChange();
|
|
|
|
// Return true if this is a simple widget (that is typically not worth
|
|
// accelerating)
|
|
bool IsSmallPopup() const;
|
|
|
|
PopupLevel GetPopupLevel() { return mPopupLevel; }
|
|
|
|
/**
|
|
* Internal methods
|
|
*/
|
|
virtual void* GetNativeData(uint32_t aDataType) = 0;
|
|
|
|
protected:
|
|
nsIWidget();
|
|
virtual ~nsIWidget();
|
|
explicit nsIWidget(BorderStyle);
|
|
|
|
// These are methods for CompositorWidgetWrapper, and should only be
|
|
// accessed from that class. Derived widgets can choose which methods to
|
|
// implement, or none if supporting out-of-process compositing.
|
|
virtual bool PreRender(mozilla::widget::WidgetRenderingContext* aContext) {
|
|
return true;
|
|
}
|
|
virtual void PostRender(mozilla::widget::WidgetRenderingContext* aContext) {}
|
|
virtual mozilla::layers::NativeLayerRoot* GetNativeLayerRoot() {
|
|
return nullptr;
|
|
}
|
|
virtual already_AddRefed<DrawTarget> StartRemoteDrawing();
|
|
virtual already_AddRefed<DrawTarget> StartRemoteDrawingInRegion(
|
|
const LayoutDeviceIntRegion& aInvalidRegion) {
|
|
return StartRemoteDrawing();
|
|
}
|
|
virtual void EndRemoteDrawing() {}
|
|
virtual void EndRemoteDrawingInRegion(
|
|
DrawTarget* aDrawTarget, const LayoutDeviceIntRegion& aInvalidRegion) {
|
|
EndRemoteDrawing();
|
|
}
|
|
virtual void CleanupRemoteDrawing() {}
|
|
virtual void CleanupWindowEffects() {}
|
|
virtual bool InitCompositor(mozilla::layers::Compositor* aCompositor) {
|
|
return true;
|
|
}
|
|
virtual uint32_t GetGLFrameBufferFormat();
|
|
virtual bool CompositorInitiallyPaused() { return false; }
|
|
|
|
void AddToChildList(nsIWidget* aChild);
|
|
void RemoveFromChildList(nsIWidget* aChild);
|
|
void RemoveAllChildren();
|
|
|
|
void ResolveIconName(const nsAString& aIconName, const nsAString& aIconSuffix,
|
|
nsIFile** aResult);
|
|
virtual void OnDestroy();
|
|
void BaseCreate(nsIWidget* aParent, const InitData& aInitData);
|
|
|
|
virtual void ConfigureAPZCTreeManager();
|
|
virtual void ConfigureAPZControllerThread();
|
|
virtual already_AddRefed<GeckoContentController>
|
|
CreateRootContentController();
|
|
|
|
mozilla::dom::Document* GetDocument() const;
|
|
void EnsureTextEventDispatcher();
|
|
// Notify the compositor that a device reset has occurred.
|
|
void OnRenderingDeviceReset();
|
|
bool UseAPZ() const;
|
|
bool AllowWebRenderForThisWindow();
|
|
|
|
/**
|
|
* Dispatch the given MultiTouchInput through APZ to Gecko (if APZ is enabled)
|
|
* or directly to gecko (if APZ is not enabled). This function must only
|
|
* be called from the main thread, and if APZ is enabled, that must also be
|
|
* the APZ controller thread.
|
|
*/
|
|
void DispatchTouchInput(mozilla::MultiTouchInput& aInput);
|
|
|
|
/**
|
|
* Dispatch the given PanGestureInput through APZ to Gecko (if APZ is enabled)
|
|
* or directly to gecko (if APZ is not enabled). This function must only
|
|
* be called from the main thread, and if APZ is enabled, that must also be
|
|
* the APZ controller thread.
|
|
*/
|
|
void DispatchPanGestureInput(mozilla::PanGestureInput& aInput);
|
|
void DispatchPinchGestureInput(mozilla::PinchGestureInput& aInput);
|
|
|
|
static bool ConvertStatus(nsEventStatus aStatus) {
|
|
return aStatus == nsEventStatus_eConsumeNoDefault;
|
|
}
|
|
|
|
protected:
|
|
// Returns whether compositing should use an external surface size.
|
|
virtual bool UseExternalCompositingSurface() const { return false; }
|
|
|
|
void SetIsTiled(bool);
|
|
|
|
/**
|
|
* Starts the OMTC compositor destruction sequence.
|
|
*
|
|
* When this function returns, the compositor should not be
|
|
* able to access the opengl context anymore.
|
|
* It is safe to call it several times if platform implementations
|
|
* require the compositor to be destroyed before ~nsIWidget is
|
|
* reached (This is the case with gtk2 for instance).
|
|
*/
|
|
virtual void DestroyCompositor();
|
|
void DestroyLayerManager();
|
|
void ReleaseContentController();
|
|
void RevokeTransactionIdAllocator();
|
|
|
|
void FreeShutdownObserver();
|
|
void FreeLocalesChangedObserver();
|
|
|
|
public:
|
|
/**
|
|
* Set the widget's title.
|
|
* Must be called after Create.
|
|
*
|
|
* @param aTitle string displayed as the title of the widget
|
|
*/
|
|
virtual nsresult SetTitle(const nsAString& aTitle) = 0;
|
|
|
|
/**
|
|
* Set the widget's icon.
|
|
* Must be called after Create.
|
|
*
|
|
* @param aIconSpec string specifying the icon to use; convention is to
|
|
* pass a resource: URL from which a platform-dependent
|
|
* resource file name will be constructed
|
|
*/
|
|
virtual void SetIcon(const nsAString& aIconSpec) {}
|
|
|
|
/**
|
|
* Return this widget's client origin in screen coordinates.
|
|
*
|
|
* @return screen coordinates stored in the x,y members
|
|
*/
|
|
virtual LayoutDeviceIntPoint WidgetToScreenOffset() = 0;
|
|
|
|
/**
|
|
* The same as WidgetToScreenOffset(), except in the case of
|
|
* PuppetWidget where this method omits the chrome offset.
|
|
*/
|
|
virtual LayoutDeviceIntPoint TopLevelWidgetToScreenOffset() {
|
|
return WidgetToScreenOffset();
|
|
}
|
|
|
|
/**
|
|
* For a PuppetWidget, returns the transform from the coordinate
|
|
* space of the PuppetWidget to the coordinate space of the
|
|
* top-level native widget.
|
|
*
|
|
* Identity transform in other cases.
|
|
*/
|
|
virtual mozilla::LayoutDeviceToLayoutDeviceMatrix4x4
|
|
WidgetToTopLevelWidgetTransform() {
|
|
return mozilla::LayoutDeviceToLayoutDeviceMatrix4x4();
|
|
}
|
|
|
|
mozilla::LayoutDeviceIntPoint WidgetToTopLevelWidgetOffset() {
|
|
return mozilla::LayoutDeviceIntPoint::Round(
|
|
WidgetToTopLevelWidgetTransform().TransformPoint(
|
|
mozilla::LayoutDevicePoint()));
|
|
}
|
|
|
|
/**
|
|
* Returns the margins that are applied to go from client sizes to window
|
|
* sizes on a normal sizemode window (which includes window borders and
|
|
* titlebar).
|
|
*
|
|
* This method should work even when the window is not yet visible.
|
|
*/
|
|
virtual LayoutDeviceIntMargin NormalSizeModeClientToWindowMargin() {
|
|
return {};
|
|
}
|
|
|
|
/**
|
|
* Returns the size difference from client area to window area of a
|
|
* normal-sizemode window.
|
|
*/
|
|
LayoutDeviceIntSize NormalSizeModeClientToWindowSizeDifference();
|
|
|
|
/**
|
|
* Dispatches an event to the widget
|
|
*/
|
|
virtual nsEventStatus DispatchEvent(mozilla::WidgetGUIEvent*);
|
|
|
|
/**
|
|
* Dispatches an event to APZ only.
|
|
* No-op in the child process.
|
|
*/
|
|
virtual void DispatchEventToAPZOnly(mozilla::WidgetInputEvent* aEvent);
|
|
|
|
/*
|
|
* Dispatch a gecko event for this widget.
|
|
* Returns true if it's consumed. Otherwise, false.
|
|
*/
|
|
virtual bool DispatchWindowEvent(mozilla::WidgetGUIEvent& event);
|
|
|
|
// A structure that groups the statuses from APZ dispatch and content
|
|
// dispatch.
|
|
struct ContentAndAPZEventStatus {
|
|
// Either of these may not be set if the event was not dispatched
|
|
// to APZ or to content.
|
|
nsEventStatus mApzStatus = nsEventStatus_eIgnore;
|
|
nsEventStatus mContentStatus = nsEventStatus_eIgnore;
|
|
};
|
|
|
|
/**
|
|
* Dispatches an event that must be handled by APZ first, when APZ is
|
|
* enabled. If invoked in the child process, it is forwarded to the
|
|
* parent process synchronously.
|
|
*/
|
|
virtual ContentAndAPZEventStatus DispatchInputEvent(
|
|
mozilla::WidgetInputEvent* aEvent);
|
|
|
|
/**
|
|
* Confirm an APZ-aware event target. This should be used when APZ will
|
|
* not need a layers update to process the event.
|
|
*/
|
|
virtual void SetConfirmedTargetAPZC(
|
|
uint64_t aInputBlockId,
|
|
const nsTArray<ScrollableLayerGuid>& aTargets) const;
|
|
|
|
/**
|
|
* Returns true if APZ is in use, false otherwise.
|
|
*/
|
|
virtual bool AsyncPanZoomEnabled() const;
|
|
|
|
/**
|
|
*/
|
|
virtual void SwipeFinished();
|
|
|
|
/**
|
|
* Enables the dropping of files to a widget.
|
|
*/
|
|
virtual void EnableDragDrop(bool aEnable) {}
|
|
void AsyncEnableDragDrop(bool aEnable);
|
|
|
|
/**
|
|
* Classify the window for the window manager. Mostly for X11.
|
|
*
|
|
* @param xulWinType The window type. Characters other than [A-Za-z0-9_-] are
|
|
* converted to '_'. Anything before the first colon is
|
|
* assigned to name, anything after it to role. If there's
|
|
* no colon, assign the whole thing to both role and name.
|
|
*
|
|
* @param xulWinClass The window class. If set, overrides the normal value.
|
|
* Otherwise, the program class it used.
|
|
*
|
|
* @param xulWinName The window name. If set, overrides the value specified in
|
|
* window type. Otherwise, name from window type is used.
|
|
*
|
|
*/
|
|
virtual void SetWindowClass(const nsAString& xulWinType,
|
|
const nsAString& xulWinClass,
|
|
const nsAString& xulWinName) {}
|
|
|
|
virtual void SetIsEarlyBlankWindow(bool) {}
|
|
|
|
/**
|
|
* Enables/Disables system capture of any and all events that would cause a
|
|
* popup to be rolled up. aListener should be set to a non-null value for
|
|
* any popups that are not managed by the popup manager.
|
|
* @param aDoCapture true enables capture, false disables capture
|
|
*
|
|
*/
|
|
virtual void CaptureRollupEvents(bool aDoCapture) {}
|
|
|
|
/**
|
|
* Bring this window to the user's attention. This is intended to be a more
|
|
* gentle notification than popping the window to the top or putting up an
|
|
* alert. See, for example, Win32 FlashWindow or the NotificationManager on
|
|
* the Mac. The notification should be suppressed if the window is already
|
|
* in the foreground and should be dismissed when the user brings this window
|
|
* to the foreground.
|
|
* @param aCycleCount Maximum number of times to animate the window per system
|
|
* conventions. If set to -1, cycles indefinitely until
|
|
* window is brought into the foreground.
|
|
*/
|
|
[[nodiscard]] virtual nsresult GetAttention(int32_t aCycleCount) {
|
|
return NS_OK;
|
|
}
|
|
|
|
/**
|
|
* Ask whether there user input events pending. All input events are
|
|
* included, including those not targeted at this nsIwidget instance.
|
|
*/
|
|
virtual bool HasPendingInputEvent();
|
|
|
|
/*
|
|
* Determine whether the widget shows a resize widget. If it does,
|
|
* aResizerRect returns the resizer's rect.
|
|
*
|
|
* Returns false on any platform that does not support it.
|
|
*
|
|
* @param aResizerRect The resizer's rect in device pixels.
|
|
* @return Whether a resize widget is shown.
|
|
*/
|
|
virtual bool ShowsResizeIndicator(LayoutDeviceIntRect* aResizerRect);
|
|
|
|
// Dispatch an event that has already been routed through APZ.
|
|
nsEventStatus ProcessUntransformedAPZEvent(
|
|
mozilla::WidgetInputEvent* aEvent,
|
|
const mozilla::layers::APZEventResult& aApzResult);
|
|
|
|
enum class NativeModifiers : uint32_t {
|
|
NO_MODIFIERS = 0x00000000,
|
|
CAPS_LOCK = 0x00000001, // when CapsLock is active
|
|
NUM_LOCK = 0x00000002, // when NumLock is active
|
|
SHIFT_L = 0x00000100,
|
|
SHIFT_R = 0x00000200,
|
|
CTRL_L = 0x00000400,
|
|
CTRL_R = 0x00000800,
|
|
ALT_L = 0x00001000, // includes Option
|
|
ALT_R = 0x00002000,
|
|
COMMAND_L = 0x00004000,
|
|
COMMAND_R = 0x00008000,
|
|
HELP = 0x00010000,
|
|
ALTGRAPH = 0x00020000, // AltGr key on Windows. This emulates
|
|
// AltRight key behavior of keyboard
|
|
// layouts which maps AltGr to AltRight
|
|
// key.
|
|
FUNCTION = 0x00100000,
|
|
NUMERIC_KEY_PAD = 0x01000000, // when the key is coming from the keypad
|
|
|
|
ALL_BITS = CAPS_LOCK | NUM_LOCK | SHIFT_L | SHIFT_R | CTRL_L | CTRL_R |
|
|
ALT_L | ALT_R | COMMAND_L | COMMAND_R | HELP | ALTGRAPH |
|
|
FUNCTION | NUMERIC_KEY_PAD
|
|
};
|
|
|
|
/**
|
|
* Utility method intended for testing. Dispatches native key events
|
|
* to this widget to simulate the press and release of a key.
|
|
* @param aNativeKeyboardLayout a *platform-specific* constant.
|
|
* On Mac, this is the resource ID for a 'uchr' or 'kchr' resource.
|
|
* On Windows, it is converted to a hex string and passed to
|
|
* LoadKeyboardLayout, see
|
|
* http://msdn.microsoft.com/en-us/library/ms646305(VS.85).aspx
|
|
* @param aNativeKeyCode a *platform-specific* keycode.
|
|
* On Windows, this is the virtual key code.
|
|
* @param aModifiers some combination of the above 'NativeModifiers' flags;
|
|
* not all flags will apply to all platforms. Mac ignores the _R
|
|
* modifiers. Windows ignores COMMAND, NUMERIC_KEY_PAD, HELP and
|
|
* FUNCTION.
|
|
* @param aCharacters characters that the OS would decide to generate
|
|
* from the event. On Windows, this is the charCode passed by
|
|
* WM_CHAR.
|
|
* @param aUnmodifiedCharacters characters that the OS would decide
|
|
* to generate from the event if modifier keys (other than shift)
|
|
* were assumed inactive. Needed on Mac, ignored on Windows.
|
|
* @param aCallback the callback that will get notified once the events
|
|
* have been dispatched.
|
|
* @return NS_ERROR_NOT_AVAILABLE to indicate that the keyboard
|
|
* layout is not supported and the event was not fired
|
|
*/
|
|
virtual nsresult SynthesizeNativeKeyEvent(
|
|
int32_t aNativeKeyboardLayout, int32_t aNativeKeyCode,
|
|
nsIWidget::NativeModifiers aModifierFlags, const nsAString& aCharacters,
|
|
const nsAString& aUnmodifiedCharacters,
|
|
nsISynthesizedEventCallback* aCallback) {
|
|
mozilla::widget::AutoSynthesizedEventCallbackNotifier notifier(aCallback);
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
|
|
/**
|
|
* Utility method intended for testing. Dispatches native mouse events
|
|
* may even move the mouse cursor. On Mac the events are guaranteed to
|
|
* be sent to the window containing this widget, but on Windows they'll go
|
|
* to whatever's topmost on the screen at that position, so for
|
|
* cross-platform testing ensure that your window is at the top of the
|
|
* z-order.
|
|
* @param aPoint screen location of the mouse, in device
|
|
* pixels, with origin at the top left
|
|
* @param aNativeMessage abstract native message.
|
|
* @param aButton Mouse button defined by DOM UI Events.
|
|
* @param aModifierFlags Some values of nsIWidget::NativeModifiers.
|
|
* FYI: On Windows, Android and Headless widget on all
|
|
* platroms, this hasn't been handled yet.
|
|
* @param aCallback the callback that will get notified once the events
|
|
* have been dispatched.
|
|
*/
|
|
enum class NativeMouseMessage : uint32_t {
|
|
ButtonDown, // button down
|
|
ButtonUp, // button up
|
|
Move, // mouse cursor move
|
|
EnterWindow, // mouse cursor comes into a window
|
|
LeaveWindow, // mouse cursor leaves from a window
|
|
};
|
|
virtual nsresult SynthesizeNativeMouseEvent(
|
|
LayoutDeviceIntPoint aPoint, NativeMouseMessage aNativeMessage,
|
|
mozilla::MouseButton aButton, nsIWidget::NativeModifiers aModifierFlags,
|
|
nsISynthesizedEventCallback* aCallback) {
|
|
mozilla::widget::AutoSynthesizedEventCallbackNotifier notifier(aCallback);
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
|
|
/**
|
|
* A shortcut to SynthesizeNativeMouseEvent, abstracting away the native
|
|
* message. aPoint is location in device pixels to which the mouse pointer
|
|
* moves to.
|
|
* @param aCallback the callback that will get notified once the events
|
|
* have been dispatched.
|
|
*/
|
|
virtual nsresult SynthesizeNativeMouseMove(
|
|
LayoutDeviceIntPoint aPoint, nsISynthesizedEventCallback* aCallback) {
|
|
mozilla::widget::AutoSynthesizedEventCallbackNotifier notifier(aCallback);
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
|
|
/**
|
|
* Utility method intended for testing. Dispatching native mouse scroll
|
|
* events may move the mouse cursor.
|
|
*
|
|
* @param aPoint Mouse cursor position in screen coordinates.
|
|
* In device pixels, the origin at the top left of
|
|
* the primary display.
|
|
* @param aNativeMessage Platform native message.
|
|
* @param aDeltaX The delta value for X direction. If the native
|
|
* message doesn't indicate X direction scrolling,
|
|
* this may be ignored.
|
|
* @param aDeltaY The delta value for Y direction. If the native
|
|
* message doesn't indicate Y direction scrolling,
|
|
* this may be ignored.
|
|
* @param aDeltaZ The delta value for Z direction. If the native
|
|
* message doesn't indicate Z direction scrolling,
|
|
* this may be ignored.
|
|
* @param aModifierFlags Must be values of NativeModifiers, or zero.
|
|
* @param aAdditionalFlags See nsIDOMWidnowUtils' consts and their
|
|
* document.
|
|
* @param aCallback The callback that will get notified once the
|
|
* events have been dispatched.
|
|
*/
|
|
virtual nsresult SynthesizeNativeMouseScrollEvent(
|
|
LayoutDeviceIntPoint aPoint, uint32_t aNativeMessage, double aDeltaX,
|
|
double aDeltaY, double aDeltaZ, nsIWidget::NativeModifiers aModifierFlags,
|
|
uint32_t aAdditionalFlags, nsISynthesizedEventCallback* aCallback) {
|
|
mozilla::widget::AutoSynthesizedEventCallbackNotifier notifier(aCallback);
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
|
|
/*
|
|
* TouchpadGesturePhase states for SynthesizeNativeTouchPadPinch and
|
|
* SynthesizeNativeTouchpadPan. Match phase states in nsIDOMWindowUtils.idl.
|
|
*/
|
|
enum TouchpadGesturePhase {
|
|
PHASE_BEGIN = 0,
|
|
PHASE_UPDATE = 1,
|
|
PHASE_END = 2
|
|
};
|
|
/*
|
|
* Create a new or update an existing touch pointer on the digitizer.
|
|
* To trigger os level gestures, individual touch points should
|
|
* transition through a complete set of touch states which should be
|
|
* sent as individual messages.
|
|
*
|
|
* @param aPointerId The touch point id to create or update.
|
|
* @param aPointerState one or more of the touch states listed above
|
|
* @param aPoint coords of this event
|
|
* @param aPressure 0.0 -> 1.0 float val indicating pressure
|
|
* @param aOrientation 0 -> 359 degree value indicating the
|
|
* orientation of the pointer. Use 90 for normal taps.
|
|
* @param aCallback The callback that will get notified once the events
|
|
* have been dispatched.
|
|
*/
|
|
virtual nsresult SynthesizeNativeTouchPoint(
|
|
uint32_t aPointerId, TouchPointerState aPointerState,
|
|
LayoutDeviceIntPoint aPoint, double aPointerPressure,
|
|
uint32_t aPointerOrientation, nsISynthesizedEventCallback* aCallback) {
|
|
mozilla::widget::AutoSynthesizedEventCallbackNotifier notifier(aCallback);
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
/*
|
|
* See nsIDOMWindowUtils.sendNativeTouchpadPinch().
|
|
*/
|
|
virtual nsresult SynthesizeNativeTouchPadPinch(
|
|
TouchpadGesturePhase aEventPhase, float aScale,
|
|
LayoutDeviceIntPoint aPoint, int32_t aModifierFlags) {
|
|
MOZ_CRASH("SynthesizeNativeTouchPadPinch not implemented on this platform");
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
|
|
/*
|
|
* Helper for simulating a simple tap event with one touch point. When
|
|
* aLongTap is true, simulates a native long tap with a duration equal to
|
|
* ui.click_hold_context_menus.delay. This pref is compatible with the
|
|
* apzc long tap duration. Defaults to 1.5 seconds.
|
|
* @param aCallback The callback that will get notified once the events
|
|
* have been dispatched.
|
|
*/
|
|
virtual nsresult SynthesizeNativeTouchTap(
|
|
LayoutDeviceIntPoint aPoint, bool aLongTap,
|
|
nsISynthesizedEventCallback* aCallback);
|
|
|
|
virtual nsresult SynthesizeNativePenInput(
|
|
uint32_t aPointerId, TouchPointerState aPointerState,
|
|
LayoutDeviceIntPoint aPoint, double aPressure, uint32_t aRotation,
|
|
int32_t aTiltX, int32_t aTiltY, int32_t aButton,
|
|
nsISynthesizedEventCallback* aCallback) {
|
|
MOZ_CRASH("SynthesizeNativePenInput not implemented on this platform");
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
|
|
/*
|
|
* Send a native event as if the user double tapped the touchpad with two
|
|
* fingers.
|
|
*/
|
|
virtual nsresult SynthesizeNativeTouchpadDoubleTap(
|
|
LayoutDeviceIntPoint aPoint, uint32_t aModifierFlags) {
|
|
MOZ_CRASH(
|
|
"SynthesizeNativeTouchpadDoubleTap not implemented on this platform");
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
|
|
/*
|
|
* See nsIDOMWindowUtils.sendNativeTouchpadPan().
|
|
*/
|
|
virtual nsresult SynthesizeNativeTouchpadPan(
|
|
TouchpadGesturePhase aEventPhase, LayoutDeviceIntPoint aPoint,
|
|
double aDeltaX, double aDeltaY, int32_t aModifierFlags,
|
|
nsISynthesizedEventCallback* aCallback) {
|
|
MOZ_CRASH("SynthesizeNativeTouchpadPan not implemented on this platform");
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
|
|
virtual void StartAsyncScrollbarDrag(const AsyncDragMetrics& aDragMetrics);
|
|
|
|
/**
|
|
* Notify APZ to start autoscrolling.
|
|
* @param aAnchorLocation the location of the autoscroll anchor
|
|
* @param aGuid identifies the scroll frame to be autoscrolled
|
|
* @return true if APZ has been successfully notified
|
|
*/
|
|
virtual bool StartAsyncAutoscroll(const ScreenPoint& aAnchorLocation,
|
|
const ScrollableLayerGuid& aGuid);
|
|
|
|
/**
|
|
* Notify APZ to stop autoscrolling.
|
|
* @param aGuid identifies the scroll frame which is being autoscrolled.
|
|
*/
|
|
virtual void StopAsyncAutoscroll(const ScrollableLayerGuid& aGuid);
|
|
|
|
virtual LayersId GetRootLayerTreeId();
|
|
|
|
/**
|
|
* Use this when GetLayerManager() returns a BasicLayerManager
|
|
* (nsIWidget::GetLayerManager() does). This sets up the widget's
|
|
* layer manager to temporarily render into aTarget.
|
|
*
|
|
* |aNaturalWidgetBounds| is the un-rotated bounds of |aWidget|.
|
|
* |aRotation| is the "virtual rotation" to apply when rendering to
|
|
* the target. When |aRotation| is ROTATION_0,
|
|
* |aNaturalWidgetBounds| is not used.
|
|
*/
|
|
class AutoLayerManagerSetup {
|
|
public:
|
|
AutoLayerManagerSetup(nsIWidget* aWidget, gfxContext* aTarget);
|
|
~AutoLayerManagerSetup();
|
|
|
|
private:
|
|
nsIWidget* mWidget;
|
|
mozilla::FallbackRenderer* mRenderer = nullptr;
|
|
};
|
|
friend class AutoLayerManagerSetup;
|
|
|
|
virtual bool ShouldUseOffMainThreadCompositing();
|
|
|
|
static nsIRollupListener* GetActiveRollupListener();
|
|
|
|
void Shutdown();
|
|
void QuitIME();
|
|
|
|
// These functions should be called at the start and end of a "live" widget
|
|
// resize (i.e. when the window contents are repainting during the resize,
|
|
// such as when the user drags a window border). It will suppress the
|
|
// displayport during the live resize to avoid unneccessary overpainting.
|
|
void NotifyLiveResizeStarted();
|
|
void NotifyLiveResizeStopped();
|
|
|
|
// If this widget supports out-of-process compositing, it can override
|
|
// this method to provide additional information to the compositor.
|
|
virtual void GetCompositorWidgetInitData(
|
|
mozilla::widget::CompositorWidgetInitData* aInitData) {}
|
|
|
|
// A remote compositor session tied to this window has been lost and IPC
|
|
// messages will no longer work. The widget must clean up any lingering
|
|
// resources and possibly schedule another paint.
|
|
//
|
|
// A reference to the session object is held until this function has
|
|
// returned. Callers should hold a reference to the widget, since this
|
|
// function could deallocate the widget if it is unparented.
|
|
virtual void NotifyCompositorSessionLost(
|
|
mozilla::layers::CompositorSession* aSession);
|
|
|
|
already_AddRefed<mozilla::CompositorVsyncDispatcher>
|
|
GetCompositorVsyncDispatcher();
|
|
virtual void CreateCompositorVsyncDispatcher();
|
|
virtual void CreateCompositor();
|
|
virtual void CreateCompositor(int aWidth, int aHeight);
|
|
virtual void SetCompositorWidgetDelegate(CompositorWidgetDelegate*) {}
|
|
|
|
already_AddRefed<WindowRenderer> CreateFallbackRenderer();
|
|
|
|
/**
|
|
* Returns a FallbackRenderer which is intended to be temporary while
|
|
* backgrounded without a GPU process. It listens to GPUProcessManager events
|
|
* in order to destroy itself when the GPU process becomes available.
|
|
*/
|
|
already_AddRefed<WindowRenderer> CreateBackgroundedFallbackRenderer();
|
|
|
|
/**
|
|
* Setter/Getter of the system font setting for testing.
|
|
*/
|
|
virtual nsresult SetSystemFont(const nsCString& aFontName) {
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
virtual nsresult GetSystemFont(nsCString& aFontName) {
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
/**
|
|
* Wayland specific routines.
|
|
*/
|
|
virtual LayoutDeviceIntSize GetMoveToRectPopupSize() {
|
|
NS_WARNING("GetLayoutPopupRect implemented only for wayland");
|
|
return LayoutDeviceIntSize();
|
|
}
|
|
|
|
enum class NativePointerLockMode : uint8_t {
|
|
Regular,
|
|
Unadjusted,
|
|
};
|
|
|
|
virtual void LockNativePointer(NativePointerLockMode aNativePointerLockMode) {
|
|
}
|
|
virtual void UnlockNativePointer() {}
|
|
|
|
/**
|
|
* Inform the widget to change the native pointer lock mode. This is a no-op
|
|
* if the native pointer isn't locked or if the platform doesn't support
|
|
* unadjusted movement.
|
|
*/
|
|
virtual void SetNativePointerLockMode(
|
|
NativePointerLockMode aNativePointerLockMode) {}
|
|
|
|
/**
|
|
* Whether unadjusted movement is supported for native pointer lock.
|
|
*/
|
|
virtual bool SupportsUnadjustedMovement() { return false; }
|
|
|
|
/*
|
|
* Get safe area insets except to cutout.
|
|
* See https://drafts.csswg.org/css-env-1/#safe-area-insets.
|
|
*/
|
|
virtual mozilla::LayoutDeviceIntMargin GetSafeAreaInsets() const {
|
|
return mozilla::LayoutDeviceIntMargin();
|
|
}
|
|
|
|
private:
|
|
class LongTapInfo {
|
|
public:
|
|
LongTapInfo(int32_t aPointerId, LayoutDeviceIntPoint& aPoint,
|
|
mozilla::TimeDuration aDuration,
|
|
nsISynthesizedEventCallback* aCallback)
|
|
: mPointerId(aPointerId),
|
|
mPosition(aPoint),
|
|
mDuration(aDuration),
|
|
mCallback(aCallback),
|
|
mStamp(mozilla::TimeStamp::Now()) {}
|
|
|
|
int32_t mPointerId;
|
|
LayoutDeviceIntPoint mPosition;
|
|
mozilla::TimeDuration mDuration;
|
|
nsCOMPtr<nsISynthesizedEventCallback> mCallback;
|
|
mozilla::TimeStamp mStamp;
|
|
};
|
|
|
|
static void OnLongTapTimerCallback(nsITimer* aTimer, void* aClosure);
|
|
|
|
static already_AddRefed<nsIBidiKeyboard> CreateBidiKeyboardContentProcess();
|
|
static already_AddRefed<nsIBidiKeyboard> CreateBidiKeyboardInner();
|
|
|
|
mozilla::UniquePtr<LongTapInfo> mLongTapTouchPoint;
|
|
nsCOMPtr<nsITimer> mLongTapTimer;
|
|
static int32_t sPointerIdCounter;
|
|
|
|
public:
|
|
/**
|
|
* If key events have not been handled by content or XBL handlers, they can
|
|
* be offered to the system (for custom application shortcuts set in system
|
|
* preferences, for example).
|
|
*/
|
|
virtual void PostHandleKeyEvent(mozilla::WidgetKeyboardEvent* aEvent);
|
|
|
|
/**
|
|
* Activates a native menu item at the position specified by the index
|
|
* string. The index string is a string of positive integers separated
|
|
* by the "|" (pipe) character. The last integer in the string represents
|
|
* the item index in a submenu located using the integers preceding it.
|
|
*
|
|
* Example: 1|0|4
|
|
* In this string, the first integer represents the top-level submenu
|
|
* in the native menu bar. Since the integer is 1, it is the second submeu
|
|
* in the native menu bar. Within that, the first item (index 0) is a
|
|
* submenu, and we want to activate the 5th item within that submenu.
|
|
*/
|
|
virtual nsresult ActivateNativeMenuItemAt(const nsAString& indexString) {
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
/**
|
|
* This is used for native menu system testing.
|
|
*
|
|
* Updates a native menu at the position specified by the index string.
|
|
* The index string is a string of positive integers separated by the "|"
|
|
* (pipe) character.
|
|
*
|
|
* Example: 1|0|4
|
|
* In this string, the first integer represents the top-level submenu
|
|
* in the native menu bar. Since the integer is 1, it is the second submeu
|
|
* in the native menu bar. Within that, the first item (index 0) is a
|
|
* submenu, and we want to update submenu at index 4 within that submenu.
|
|
*
|
|
* If this is called with an empty string it forces a full reload of the
|
|
* menu system.
|
|
*/
|
|
virtual nsresult ForceUpdateNativeMenuAt(const nsAString& indexString) {
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
/**
|
|
* This is used for testing macOS service menu code.
|
|
*
|
|
* @param aResult - the current text selection. Is empty if no selection.
|
|
* @return nsresult - whether or not aResult was assigned the selected text.
|
|
*/
|
|
[[nodiscard]] virtual nsresult GetSelectionAsPlaintext(nsAString& aResult) {
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
/**
|
|
* Notify IME of the specified notification.
|
|
*
|
|
* @return If the notification is mouse button event and it's consumed by
|
|
* IME, this returns NS_SUCCESS_EVENT_CONSUMED.
|
|
*/
|
|
nsresult NotifyIME(const IMENotification& aIMENotification);
|
|
|
|
/**
|
|
* MaybeDispatchInitialFocusEvent will dispatch a focus event after creation
|
|
* of the widget, in the event that we were not able to observe and respond to
|
|
* the initial focus event. This is necessary for the early skeleton UI
|
|
* window, which is displayed and receives its initial focus event before we
|
|
* can actually respond to it.
|
|
*/
|
|
virtual void MaybeDispatchInitialFocusEvent() {}
|
|
|
|
/*
|
|
* Notifies the input context changes.
|
|
*/
|
|
virtual void SetInputContext(const InputContext& aContext,
|
|
const InputContextAction& aAction) = 0;
|
|
|
|
/*
|
|
* Get current input context.
|
|
*/
|
|
virtual InputContext GetInputContext() = 0;
|
|
|
|
/**
|
|
* Get native IME context. This is different from GetNativeData() with
|
|
* NS_RAW_NATIVE_IME_CONTEXT, the result is unique even if in a remote
|
|
* process.
|
|
*/
|
|
virtual NativeIMEContext GetNativeIMEContext();
|
|
|
|
/**
|
|
* GetPseudoIMEContext() returns pseudo IME context when TextEventDispatcher
|
|
* has non-native input transaction. Otherwise, returns nullptr.
|
|
*/
|
|
void* GetPseudoIMEContext();
|
|
|
|
/*
|
|
* Given a WidgetKeyboardEvent, this method synthesizes a corresponding
|
|
* native (OS-level) event for it. This method allows tests to simulate
|
|
* keystrokes that trigger native key bindings (which require a native
|
|
* event).
|
|
*/
|
|
[[nodiscard]] virtual nsresult AttachNativeKeyEvent(
|
|
mozilla::WidgetKeyboardEvent& aEvent) {
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
/**
|
|
* Retrieve edit commands when the key combination of aEvent is used
|
|
* in platform native applications.
|
|
*/
|
|
MOZ_CAN_RUN_SCRIPT virtual bool GetEditCommands(
|
|
mozilla::NativeKeyBindingsType aType,
|
|
const mozilla::WidgetKeyboardEvent& aEvent,
|
|
nsTArray<mozilla::CommandInt>& aCommands);
|
|
|
|
/*
|
|
* Retrieves a reference to notification requests of IME. Note that the
|
|
* reference is valid while the nsIWidget instance is alive. So, if you
|
|
* need to store the reference for a long time, you need to grab the widget
|
|
* instance too.
|
|
*/
|
|
const IMENotificationRequests& IMENotificationRequestsRef();
|
|
|
|
bool ComputeShouldAccelerate();
|
|
virtual bool WidgetTypeSupportsAcceleration() { return true; }
|
|
virtual bool WidgetTypeSupportsNativeCompositing() { return true; }
|
|
|
|
/*
|
|
* Call this method when a dialog is opened which has a default button.
|
|
* The button's rectangle should be supplied in aButtonRect.
|
|
*/
|
|
[[nodiscard]] virtual nsresult OnDefaultButtonLoaded(
|
|
const LayoutDeviceIntRect& aButtonRect) {
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
/**
|
|
* Return true if this process shouldn't use platform widgets, and
|
|
* so should use PuppetWidgets instead. If this returns true, the
|
|
* result of creating and using a platform widget is undefined,
|
|
* and likely to end in crashes or other buggy behavior.
|
|
*/
|
|
static bool UsePuppetWidgets() { return XRE_IsContentProcess(); }
|
|
|
|
static already_AddRefed<nsIWidget> CreateTopLevelWindow();
|
|
|
|
static already_AddRefed<nsIWidget> CreateChildWindow();
|
|
|
|
/**
|
|
* Allocate and return a "puppet widget" that doesn't directly
|
|
* correlate to a platform widget; platform events and data must
|
|
* be fed to it. Currently used in content processes. NULL is
|
|
* returned if puppet widgets aren't supported in this build
|
|
* config, on this platform, or for this process type.
|
|
*
|
|
* This function is called "Create" to match CreateInstance().
|
|
* The returned widget must still be nsIWidget::Create()d.
|
|
*/
|
|
static already_AddRefed<nsIWidget> CreatePuppetWidget(
|
|
BrowserChild* aBrowserChild);
|
|
|
|
static already_AddRefed<nsIWidget> CreateHeadlessWidget();
|
|
|
|
/**
|
|
* Return true if widget has it's own GL context
|
|
*/
|
|
virtual bool HasGLContext() { return false; }
|
|
|
|
/**
|
|
* Returns true to indicate that this widget paints an opaque background
|
|
* that we want to be visible under the page, so layout should not force
|
|
* a default background.
|
|
*/
|
|
virtual bool WidgetPaintsBackground() { return false; }
|
|
|
|
virtual bool NeedsPaint() { return IsVisible() && !GetBounds().IsEmpty(); }
|
|
|
|
/**
|
|
* Get the natural bounds of this widget. This method is only
|
|
* meaningful for widgets for which Gecko implements screen
|
|
* rotation natively. When this is the case, GetBounds() returns
|
|
* the widget bounds taking rotation into account, and
|
|
* GetNaturalBounds() returns the bounds *not* taking rotation
|
|
* into account.
|
|
*
|
|
* No code outside of the composition pipeline should know or care
|
|
* about this. If you're not an agent of the compositor, you
|
|
* probably shouldn't call this method.
|
|
*/
|
|
virtual LayoutDeviceIntRect GetNaturalBounds() { return GetBounds(); }
|
|
|
|
/**
|
|
* Set size constraints on the window size such that it is never less than
|
|
* the specified minimum size and never larger than the specified maximum
|
|
* size. The size constraints are sizes of the outer rectangle including
|
|
* the window frame and title bar. Use 0 for an unconstrained minimum size
|
|
* and NS_MAXSIZE for an unconstrained maximum size. Note that this method
|
|
* does not necessarily change the size of a window to conform to this size,
|
|
* thus Resize should be called afterwards.
|
|
*
|
|
* @param aConstraints: the size constraints in desktop pixels
|
|
*/
|
|
virtual void SetSizeConstraints(const SizeConstraints& aConstraints);
|
|
|
|
#ifdef ACCESSIBILITY
|
|
// Get the accessible for the window.
|
|
mozilla::a11y::LocalAccessible* GetRootAccessible();
|
|
#endif
|
|
|
|
/**
|
|
* Return the size constraints currently observed by the widget.
|
|
*
|
|
* @return the constraints in desktop pixels
|
|
*/
|
|
virtual const SizeConstraints GetSizeConstraints();
|
|
|
|
/**
|
|
* Apply the current size constraints to the given size. The size and
|
|
* constraints are converted through the widget's current scale factor
|
|
* so that callers can continue to work in device pixels.
|
|
*
|
|
* @param aWidth width in device pixels to constrain
|
|
* @param aHeight height in device pixels to constrain
|
|
*/
|
|
virtual void ConstrainSize(int32_t* aWidth, int32_t* aHeight) {
|
|
SizeConstraints c = GetSizeConstraints();
|
|
const double scale = GetDesktopToDeviceScale().scale;
|
|
auto ToDevice = [scale](int32_t aDesktop) {
|
|
return aDesktop == NS_MAXSIZE ? NS_MAXSIZE
|
|
: NSToIntRound(aDesktop * scale);
|
|
};
|
|
*aWidth = std::clamp(*aWidth, ToDevice(c.mMinSize.width),
|
|
ToDevice(c.mMaxSize.width));
|
|
*aHeight = std::clamp(*aHeight, ToDevice(c.mMinSize.height),
|
|
ToDevice(c.mMaxSize.height));
|
|
}
|
|
|
|
/**
|
|
* If this is owned by a BrowserChild, return that. Otherwise return
|
|
* null.
|
|
*/
|
|
virtual BrowserChild* GetOwningBrowserChild() { return nullptr; }
|
|
|
|
/*
|
|
* Returns the layersId for this widget.
|
|
*/
|
|
virtual LayersId GetLayersId() const;
|
|
|
|
/**
|
|
* If this isn't directly compositing to its window surface,
|
|
* return the compositor which is doing that on our behalf.
|
|
*/
|
|
virtual CompositorBridgeChild* GetRemoteRenderer();
|
|
|
|
/**
|
|
* If there is a remote renderer, pause or resume it.
|
|
*/
|
|
virtual void PauseOrResumeCompositor(bool aPause);
|
|
|
|
/**
|
|
* Clear WebRender resources
|
|
*/
|
|
virtual void ClearCachedWebrenderResources();
|
|
|
|
/**
|
|
* Request fast snapshot at RenderCompositor of WebRender.
|
|
* Since readback of Windows DirectComposition is very slow.
|
|
*/
|
|
virtual bool SetNeedFastSnaphot();
|
|
|
|
/** Notify the widget that this window is being used with OMTC. */
|
|
virtual void WindowUsesOMTC() {}
|
|
virtual void RegisterTouchWindow() {}
|
|
|
|
/**
|
|
* If this widget has its own vsync dispatcher, return it, otherwise return
|
|
* nullptr. An example of such a local vsync dispatcher would be Wayland frame
|
|
* callbacks.
|
|
*/
|
|
virtual RefPtr<mozilla::VsyncDispatcher> GetVsyncDispatcher();
|
|
|
|
/**
|
|
* Returns true if the widget requires synchronous repaints on resize,
|
|
* false otherwise.
|
|
*/
|
|
virtual bool SynchronouslyRepaintOnResize() { return true; }
|
|
|
|
virtual void UpdateZoomConstraints(
|
|
const uint32_t& aPresShellId, const ScrollableLayerGuid::ViewID& aViewId,
|
|
const mozilla::Maybe<ZoomConstraints>& aConstraints);
|
|
|
|
/**
|
|
* GetTextEventDispatcher() returns TextEventDispatcher belonging to the
|
|
* widget. Note that this never returns nullptr.
|
|
*/
|
|
TextEventDispatcher* GetTextEventDispatcher();
|
|
|
|
// Gets the pres shell this widget is managed by.
|
|
mozilla::PresShell* GetPresShell() const;
|
|
|
|
/**
|
|
* GetNativeTextEventDispatcherListener() returns a
|
|
* TextEventDispatcherListener instance which is used when the widget
|
|
* instance handles native IME and/or keyboard events.
|
|
*/
|
|
virtual TextEventDispatcherListener* GetNativeTextEventDispatcherListener();
|
|
|
|
/**
|
|
* Trigger an animation to zoom to the given |aRect|.
|
|
* |aRect| should be relative to the layout viewport of the widget's root
|
|
* document
|
|
*/
|
|
virtual void ZoomToRect(const uint32_t& aPresShellId,
|
|
const ScrollableLayerGuid::ViewID& aViewId,
|
|
const CSSRect& aRect, const uint32_t& aFlags);
|
|
|
|
/**
|
|
* LookUpDictionary shows the dictionary for the word around current point.
|
|
*
|
|
* @param aText the word to look up dictiorary.
|
|
* @param aFontRangeArray text decoration of aText
|
|
* @param aIsVertical true if the word is vertical layout
|
|
* @param aPoint top-left point of aText
|
|
*/
|
|
virtual void LookUpDictionary(
|
|
const nsAString& aText,
|
|
const nsTArray<mozilla::FontRange>& aFontRangeArray,
|
|
const bool aIsVertical, const LayoutDeviceIntPoint& aPoint) {}
|
|
|
|
virtual void RequestFxrOutput() {
|
|
MOZ_ASSERT(false, "This function should only execute in Windows");
|
|
}
|
|
|
|
/**
|
|
* NotifyCompositorScrollUpdate notify widget about an update to the
|
|
* composited scroll offset and zoom
|
|
*/
|
|
virtual void NotifyCompositorScrollUpdate(
|
|
const mozilla::layers::CompositorScrollUpdate& aUpdate) {}
|
|
|
|
#if defined(MOZ_WIDGET_ANDROID)
|
|
/**
|
|
* RecvToolbarAnimatorMessageFromCompositor receive message from compositor
|
|
* thread.
|
|
*
|
|
* @param aMessage message being sent to Android UI thread.
|
|
*/
|
|
virtual void RecvToolbarAnimatorMessageFromCompositor(int32_t aMessage) {}
|
|
|
|
virtual void UpdateDynamicToolbarMaxHeight(mozilla::ScreenIntCoord aHeight) {}
|
|
virtual mozilla::ScreenIntCoord GetDynamicToolbarMaxHeight() const {
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
void EnsureLocalesChangedObserver();
|
|
virtual void LocalesChanged() {}
|
|
virtual void NotifyOcclusionState(mozilla::widget::OcclusionState) {}
|
|
|
|
static already_AddRefed<nsIBidiKeyboard> CreateBidiKeyboard();
|
|
|
|
// If this is a popup, returns the associated frame if any.
|
|
nsMenuPopupFrame* GetPopupFrame() const;
|
|
// Returns the frame currently associated to this widget.
|
|
nsIFrame* GetFrame() const;
|
|
|
|
/**
|
|
* Like GetDefaultScale, but taking into account only the system settings
|
|
* and ignoring Gecko preferences.
|
|
*/
|
|
virtual double GetDefaultScaleInternal() { return 1.0; }
|
|
|
|
// On a given platform, we might have three kinds of widgets:
|
|
// In the parent process, we might have native, puppet, or headless widgets.
|
|
// In child processes, we only have Puppet widgets.
|
|
enum class WidgetType : uint8_t {
|
|
Native,
|
|
Headless,
|
|
Puppet,
|
|
};
|
|
bool IsPuppetWidget() const { return mWidgetType == WidgetType::Puppet; }
|
|
bool IsHeadlessWidget() const { return mWidgetType == WidgetType::Headless; }
|
|
bool IsNativeWidget() const { return mWidgetType == WidgetType::Native; }
|
|
|
|
using WindowButtonType = mozilla::WindowButtonType;
|
|
|
|
/**
|
|
* Layout uses this to alert the widget to the client rect representing
|
|
* the window maximize button. An empty rect indicates there is no
|
|
* maximize button (for example, in fullscreen). This is only implemented
|
|
* on Windows.
|
|
*/
|
|
virtual void SetWindowButtonRect(WindowButtonType aButtonType,
|
|
const LayoutDeviceIntRect& aClientRect) {}
|
|
|
|
/**
|
|
* Provide haptic feedback for this widget.
|
|
*/
|
|
virtual void PerformHapticFeedback(mozilla::HapticFeedbackType aType) {}
|
|
|
|
#ifdef DEBUG
|
|
virtual nsresult SetHiDPIMode(bool aHiDPI) {
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
virtual nsresult RestoreHiDPIMode() { return NS_ERROR_NOT_IMPLEMENTED; }
|
|
#endif
|
|
|
|
protected:
|
|
// keep the list of children. We also keep track of our siblings.
|
|
// The ownership model is as follows: parent holds a strong ref to
|
|
// the first element of the list, and each element holds a strong
|
|
// ref to the next element in the list. The prevsibling and
|
|
// lastchild pointers are weak, which is fine as long as they are
|
|
// maintained properly.
|
|
nsCOMPtr<nsIWidget> mFirstChild;
|
|
nsIWidget* MOZ_NON_OWNING_REF mLastChild = nullptr;
|
|
nsCOMPtr<nsIWidget> mNextSibling;
|
|
nsIWidget* MOZ_NON_OWNING_REF mPrevSibling = nullptr;
|
|
// Keeps us alive.
|
|
nsIWidget* MOZ_NON_OWNING_REF mParent = nullptr;
|
|
// When Destroy() is called, the sub class should set this true.
|
|
bool mOnDestroyCalled = false;
|
|
WindowType mWindowType = WindowType::TopLevel;
|
|
WidgetType mWidgetType = WidgetType::Native;
|
|
|
|
nsIWidgetListener* mWidgetListener = nullptr;
|
|
nsIWidgetListener* mAttachedWidgetListener = nullptr;
|
|
nsIWidgetListener* mPreviouslyAttachedWidgetListener = nullptr;
|
|
RefPtr<WindowRenderer> mWindowRenderer;
|
|
RefPtr<CompositorSession> mCompositorSession;
|
|
RefPtr<CompositorBridgeChild> mCompositorBridgeChild;
|
|
|
|
mozilla::UniquePtr<mozilla::Mutex> mCompositorVsyncDispatcherLock;
|
|
RefPtr<mozilla::CompositorVsyncDispatcher> mCompositorVsyncDispatcher;
|
|
|
|
RefPtr<IAPZCTreeManager> mAPZC;
|
|
RefPtr<GeckoContentController> mRootContentController;
|
|
RefPtr<APZEventState> mAPZEventState;
|
|
RefPtr<mozilla::widget::WidgetShutdownObserver> mShutdownObserver;
|
|
RefPtr<mozilla::widget::LocalesChangedObserver> mLocalesChangedObserver;
|
|
RefPtr<TextEventDispatcher> mTextEventDispatcher;
|
|
RefPtr<mozilla::SwipeTracker> mSwipeTracker;
|
|
mozilla::UniquePtr<mozilla::SwipeEventQueue> mSwipeEventQueue;
|
|
Cursor mCursor;
|
|
bool mCustomCursorAllowed = true;
|
|
BorderStyle mBorderStyle;
|
|
bool mIsTiled;
|
|
PopupLevel mPopupLevel;
|
|
PopupType mPopupType;
|
|
SizeConstraints mSizeConstraints;
|
|
bool mHasRemoteContent;
|
|
|
|
struct FullscreenSavedState {
|
|
DesktopRect windowRect;
|
|
DesktopRect screenRect;
|
|
};
|
|
mozilla::Maybe<FullscreenSavedState> mSavedBounds;
|
|
|
|
bool mUpdateCursor;
|
|
bool mIMEHasFocus;
|
|
bool mIMEHasQuit;
|
|
// if the window is fully occluded (rendering may be paused in response)
|
|
bool mIsFullyOccluded;
|
|
bool mNeedFastSnaphot;
|
|
// This flag is only used when APZ is off. It indicates that the current pan
|
|
// gesture was processed as a swipe. Sometimes the swipe animation can finish
|
|
// before momentum events of the pan gesture have stopped firing, so this
|
|
// flag tells us that we shouldn't allow the remaining events to cause
|
|
// scrolling. It is reset to false once a new gesture starts (as indicated by
|
|
// a PANGESTURE_(MAY)START event).
|
|
bool mCurrentPanGestureBelongsToSwipe;
|
|
|
|
mozilla::widget::PiPType mPiPType;
|
|
|
|
struct InitialZoomConstraints {
|
|
InitialZoomConstraints(const uint32_t& aPresShellID,
|
|
const ScrollableLayerGuid::ViewID& aViewID,
|
|
const ZoomConstraints& aConstraints)
|
|
: mPresShellID(aPresShellID),
|
|
mViewID(aViewID),
|
|
mConstraints(aConstraints) {}
|
|
|
|
uint32_t mPresShellID;
|
|
ScrollableLayerGuid::ViewID mViewID;
|
|
ZoomConstraints mConstraints;
|
|
};
|
|
|
|
mozilla::Maybe<InitialZoomConstraints> mInitialZoomConstraints;
|
|
|
|
// This points to the resize listeners who have been notified that a live
|
|
// resize is in progress. This should always be empty when a live-resize is
|
|
// not in progress.
|
|
nsTArray<RefPtr<mozilla::LiveResizeListener>> mLiveResizeListeners;
|
|
|
|
#ifdef DEBUG
|
|
protected:
|
|
static void debug_DumpInvalidate(FILE* aFileOut, nsIWidget* aWidget,
|
|
const LayoutDeviceIntRect* aRect,
|
|
const char* aWidgetName, int32_t aWindowID);
|
|
|
|
static void debug_DumpEvent(FILE* aFileOut, nsIWidget* aWidget,
|
|
mozilla::WidgetGUIEvent* aGuiEvent,
|
|
const char* aWidgetName, int32_t aWindowID);
|
|
|
|
static void debug_DumpPaintEvent(FILE* aFileOut, nsIWidget* aWidget,
|
|
const nsIntRegion& aPaintEvent,
|
|
const char* aWidgetName, int32_t aWindowID);
|
|
|
|
static bool debug_GetCachedBoolPref(const char* aPrefName);
|
|
#endif
|
|
|
|
private:
|
|
already_AddRefed<mozilla::layers::WebRenderLayerManager>
|
|
CreateCompositorSession(int aWidth, int aHeight,
|
|
mozilla::layers::CompositorOptions* aOptionsOut);
|
|
};
|
|
|
|
MOZ_MAKE_ENUM_CLASS_BITWISE_OPERATORS(nsIWidget::NativeModifiers)
|
|
|
|
#endif // nsIWidget_h_
|