import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

widget/windows/nsWindowBase.h

@@ -0,0 +1,145 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nsWindowBase_h_
+#define nsWindowBase_h_
+
+#include "mozilla/EventForwards.h"
+#include "nsBaseWidget.h"
+#include "nsClassHashtable.h"
+
+#include <windows.h>
+#include "touchinjection_sdk80.h"
+
+/*
+ * nsWindowBase - Base class of common methods other classes need to access
+ * in both win32 and winrt window classes.
+ */
+class nsWindowBase : public nsBaseWidget
+{
+public:
+  typedef mozilla::WidgetEventTime WidgetEventTime;
+
+  /*
+   * Return the HWND or null for this widget.
+   */
+  virtual HWND GetWindowHandle() final {
+    return static_cast<HWND>(GetNativeData(NS_NATIVE_WINDOW));
+  }
+
+  /*
+   * Return the parent window, if it exists.
+   */
+  virtual nsWindowBase* GetParentWindowBase(bool aIncludeOwner) = 0;
+
+  /*
+   * Return true if this is a top level widget.
+   */
+  virtual bool IsTopLevelWidget() = 0;
+
+  /*
+   * Init a standard gecko event for this widget.
+   * @param aEvent the event to initialize.
+   * @param aPoint message position in physical coordinates.
+   */
+  virtual void InitEvent(mozilla::WidgetGUIEvent& aEvent,
+                         LayoutDeviceIntPoint* aPoint = nullptr) = 0;
+
+  /*
+   * Returns WidgetEventTime instance which is initialized with current message
+   * time.
+   */
+  virtual WidgetEventTime CurrentMessageWidgetEventTime() const = 0;
+
+  /*
+   * Dispatch a gecko event for this widget.
+   * Returns true if it's consumed.  Otherwise, false.
+   */
+  virtual bool DispatchWindowEvent(mozilla::WidgetGUIEvent* aEvent) = 0;
+
+  /*
+   * Dispatch a gecko keyboard event for this widget. This
+   * is called by KeyboardLayout to dispatch gecko events.
+   * Returns true if it's consumed.  Otherwise, false.
+   */
+  virtual bool DispatchKeyboardEvent(mozilla::WidgetKeyboardEvent* aEvent) = 0;
+
+  /*
+   * Dispatch a gecko wheel event for this widget. This
+   * is called by ScrollHandler to dispatch gecko events.
+   * Returns true if it's consumed.  Otherwise, false.
+   */
+  virtual bool DispatchWheelEvent(mozilla::WidgetWheelEvent* aEvent) = 0;
+
+  /*
+   * Dispatch a gecko content command event for this widget. This
+   * is called by ScrollHandler to dispatch gecko events.
+   * Returns true if it's consumed.  Otherwise, false.
+   */
+  virtual bool DispatchContentCommandEvent(mozilla::WidgetContentCommandEvent* aEvent) = 0;
+
+  /*
+   * Default dispatch of a plugin event.
+   */
+  virtual bool DispatchPluginEvent(const MSG& aMsg);
+
+  /*
+   * Returns true if this should dispatch a plugin event.
+   */
+  bool ShouldDispatchPluginEvent();
+
+  /*
+   * Touch input injection apis
+   */
+  virtual nsresult SynthesizeNativeTouchPoint(uint32_t aPointerId,
+                                              TouchPointerState aPointerState,
+                                              LayoutDeviceIntPoint aPoint,
+                                              double aPointerPressure,
+                                              uint32_t aPointerOrientation,
+                                              nsIObserver* aObserver) override;
+  virtual nsresult ClearNativeTouchSequence(nsIObserver* aObserver) override;
+
+  /*
+   * WM_APPCOMMAND common handler.
+   * Sends events via NativeKey::HandleAppCommandMessage().
+   */
+  virtual bool HandleAppCommandMsg(const MSG& aAppCommandMsg,
+                                   LRESULT *aRetValue);
+
+protected:
+  virtual int32_t LogToPhys(double aValue) = 0;
+  void ChangedDPI();
+
+  static bool InitTouchInjection();
+  bool InjectTouchPoint(uint32_t aId, LayoutDeviceIntPoint& aPoint,
+                        POINTER_FLAGS aFlags, uint32_t aPressure = 1024,
+                        uint32_t aOrientation = 90);
+
+  class PointerInfo
+  {
+  public:
+    PointerInfo(int32_t aPointerId, LayoutDeviceIntPoint& aPoint) :
+      mPointerId(aPointerId),
+      mPosition(aPoint)
+    {
+    }
+
+    int32_t mPointerId;
+    LayoutDeviceIntPoint mPosition;
+  };
+
+  nsClassHashtable<nsUint32HashKey, PointerInfo> mActivePointers;
+  static bool sTouchInjectInitialized;
+  static InjectTouchInputPtr sInjectTouchFuncPtr;
+
+  // This is used by SynthesizeNativeTouchPoint to maintain state between
+  // multiple synthesized points, in the case where we can't call InjectTouch
+  // directly.
+  mozilla::UniquePtr<mozilla::MultiTouchInput> mSynthesizedTouchInput;
+protected:
+  InputContext mInputContext;
+};
+
+#endif // nsWindowBase_h_