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293 lines
13 KiB
C++
293 lines
13 KiB
C++
/* vim: set sw=2 sts=2 et cin: */
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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* 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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*
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* This Original Code has been modified by IBM Corporation.
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* Modifications made by IBM are
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* Copyright (c) International Business Machines Corporation, 2000
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*
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*/
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//=============================================================================
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/*
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* nsWindow derives from nsIWidget via nsBaseWindow. With the aid
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* of a helper class (os2FrameWindow) and a subclass (nsChildWindow),
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* it implements the functionality of both toplevel and child widgets.
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*
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* Top-level widgets (windows surrounded by a frame with a titlebar, etc.)
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* are created when NS_WINDOW_CID is used to identify the type of object
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* needed. Child widgets (windows that either are children of other windows
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* or are popups such as menus) are created when NS_CHILD_CID is specified.
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* Since Mozilla expects these to be different classes, NS_CHILD_CID is
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* mapped to a subclass (nsChildWindow) which acts solely as a wrapper for
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* nsWindow and adds no functionality.
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*
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* While most of the methods inherited from nsIWidget are generic, some
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* apply only to toplevel widgets (e.g. setting a title or icon). The
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* nature of toplevel windows on OS/2 with their separate frame & client
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* windows introduces the need for additional toplevel-specific methods,
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* as well as for special handling in otherwise generic methods.
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*
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* Rather than incorporating these toplevel functions into the body of
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* the class, nsWindow delegates them to a helper class, os2FrameWindow.
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* An instance of this class is created when nsWindow is told to create
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* a toplevel native window and is destroyed in nsWindow's destructor.
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* The class's methods operate exclusively on the frame window and never
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* deal with the frame's client other than to create it. Similarly,
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* nsWindow never operates on frame windows except for a few trivial
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* methods (e.g. Enable()). Neither class accesses the other's data
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* though, of necessity, both call the other's methods.
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*
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*/
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//=============================================================================
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#ifndef _nswindow_h
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#define _nswindow_h
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#include "nsBaseWidget.h"
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#include "gfxASurface.h"
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#define INCL_DOS
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#define INCL_WIN
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#define INCL_NLS
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#define INCL_GPI
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#include <os2.h>
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//-----------------------------------------------------------------------------
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// Items that may not be in the OS/2 Toolkit headers
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// For WM_MOUSEENTER/LEAVE, mp2 is the other window.
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#ifndef WM_MOUSEENTER
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#define WM_MOUSEENTER 0x041E
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#endif
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#ifndef WM_MOUSELEAVE
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#define WM_MOUSELEAVE 0x041F
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#endif
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#ifndef WM_FOCUSCHANGED
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#define WM_FOCUSCHANGED 0x000E
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#endif
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extern "C" {
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PVOID APIENTRY WinQueryProperty(HWND hwnd, PCSZ pszNameOrAtom);
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PVOID APIENTRY WinRemoveProperty(HWND hwnd, PCSZ pszNameOrAtom);
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BOOL APIENTRY WinSetProperty(HWND hwnd, PCSZ pszNameOrAtom,
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PVOID pvData, ULONG ulFlags);
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APIRET APIENTRY DosQueryModFromEIP(HMODULE* phMod, ULONG* pObjNum,
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ULONG BuffLen, PCHAR pBuff,
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ULONG* pOffset, ULONG Address);
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}
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//-----------------------------------------------------------------------------
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// Macros
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// nsWindow's PM window class name
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#define kWindowClassName "MozillaWindowClass"
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#define QWL_NSWINDOWPTR (QWL_USER+4)
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// Miscellaneous global flags stored in gOS2Flags
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#define kIsInitialized 0x0001
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#define kIsDBCS 0x0002
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#define kIsTrackPoint 0x0004
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// Possible states of the window
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#define nsWindowState_ePrecreate 0x0001 // Create() not called yet
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#define nsWindowState_eInCreate 0x0002 // processing Create() method
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#define nsWindowState_eLive 0x0004 // active, existing window
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#define nsWindowState_eClosing 0x0008 // processing Close() method
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#define nsWindowState_eDoingDelete 0x0010 // object destructor running
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#define nsWindowState_eDead 0x0100 // window destroyed
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//-----------------------------------------------------------------------------
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// Debug
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//#define DEBUG_FOCUS
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//-----------------------------------------------------------------------------
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// Forward declarations
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class imgIContainer;
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class gfxOS2Surface;
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class os2FrameWindow;
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MRESULT EXPENTRY fnwpNSWindow(HWND hwnd, ULONG msg, MPARAM mp1, MPARAM mp2);
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MRESULT EXPENTRY fnwpFrame(HWND hwnd, ULONG msg, MPARAM mp1, MPARAM mp2);
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//=============================================================================
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// nsWindow
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//=============================================================================
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class nsWindow : public nsBaseWidget
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{
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public:
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nsWindow();
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virtual ~nsWindow();
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// from nsIWidget
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NS_IMETHOD Create(nsIWidget* aParent,
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nsNativeWidget aNativeParent,
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const nsIntRect& aRect,
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EVENT_CALLBACK aHandleEventFunction,
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nsDeviceContext* aContext,
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nsWidgetInitData* aInitData = nsnull);
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NS_IMETHOD Destroy();
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virtual nsIWidget* GetParent();
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virtual float GetDPI();
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NS_IMETHOD Enable(bool aState);
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NS_IMETHOD IsEnabled(bool* aState);
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NS_IMETHOD Show(bool aState);
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NS_IMETHOD IsVisible(bool& aState);
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NS_IMETHOD SetFocus(bool aRaise);
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NS_IMETHOD Invalidate(const nsIntRect& aRect);
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gfxASurface* GetThebesSurface();
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virtual void* GetNativeData(PRUint32 aDataType);
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virtual void FreeNativeData(void* aDatum, PRUint32 aDataType);
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NS_IMETHOD CaptureMouse(bool aCapture);
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virtual bool HasPendingInputEvent();
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NS_IMETHOD GetBounds(nsIntRect& aRect);
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NS_IMETHOD GetClientBounds(nsIntRect& aRect);
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virtual nsIntPoint WidgetToScreenOffset();
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NS_IMETHOD Move(PRInt32 aX, PRInt32 aY);
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NS_IMETHOD Resize(PRInt32 aWidth, PRInt32 aHeight,
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bool aRepaint);
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NS_IMETHOD Resize(PRInt32 aX, PRInt32 aY,
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PRInt32 aWidth, PRInt32 aHeight,
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bool aRepaint);
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NS_IMETHOD PlaceBehind(nsTopLevelWidgetZPlacement aPlacement,
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nsIWidget* aWidget, bool aActivate);
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NS_IMETHOD SetZIndex(PRInt32 aZIndex);
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virtual nsresult ConfigureChildren(const nsTArray<Configuration>& aConfigurations);
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NS_IMETHOD SetSizeMode(PRInt32 aMode);
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NS_IMETHOD HideWindowChrome(bool aShouldHide);
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NS_IMETHOD SetTitle(const nsAString& aTitle);
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NS_IMETHOD SetIcon(const nsAString& aIconSpec);
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NS_IMETHOD ConstrainPosition(bool aAllowSlop,
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PRInt32* aX, PRInt32* aY);
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NS_IMETHOD SetCursor(nsCursor aCursor);
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NS_IMETHOD SetCursor(imgIContainer* aCursor,
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PRUint32 aHotspotX, PRUint32 aHotspotY);
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NS_IMETHOD CaptureRollupEvents(nsIRollupListener* aListener,
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bool aDoCapture, bool aConsumeRollupEvent);
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NS_IMETHOD GetToggledKeyState(PRUint32 aKeyCode,
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bool* aLEDState);
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NS_IMETHOD DispatchEvent(nsGUIEvent* event,
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nsEventStatus& aStatus);
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NS_IMETHOD ReparentNativeWidget(nsIWidget* aNewParent);
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NS_IMETHOD_(void) SetInputContext(const InputContext& aInputContext,
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const InputContextAction& aAction)
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{
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mInputContext = aInputContext;
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}
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NS_IMETHOD_(InputContext) GetInputContext()
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{
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return mInputContext;
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}
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// nsWindow
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static void ReleaseGlobals();
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protected:
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// from nsBaseWidget
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virtual void OnDestroy();
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// nsWindow
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static void InitGlobals();
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nsresult CreateWindow(nsWindow* aParent,
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HWND aParentWnd,
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const nsIntRect& aRect,
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nsWidgetInitData* aInitData);
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gfxASurface* ConfirmThebesSurface();
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HWND GetMainWindow();
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static nsWindow* GetNSWindowPtr(HWND aWnd);
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static bool SetNSWindowPtr(HWND aWnd, nsWindow* aPtr);
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void NS2PM(POINTL& ptl);
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void NS2PM(RECTL& rcl);
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void NS2PM_PARENT(POINTL& ptl);
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void ActivatePlugin(HWND aWnd);
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void SetPluginClipRegion(const Configuration& aConfiguration);
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HWND GetPluginClipWindow(HWND aParentWnd);
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void ActivateTopLevelWidget();
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HBITMAP DataToBitmap(PRUint8* aImageData, PRUint32 aWidth,
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PRUint32 aHeight, PRUint32 aDepth);
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HBITMAP CreateBitmapRGB(PRUint8* aImageData,
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PRUint32 aWidth, PRUint32 aHeight);
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HBITMAP CreateTransparencyMask(gfxASurface::gfxImageFormat format,
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PRUint8* aImageData,
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PRUint32 aWidth, PRUint32 aHeight);
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static bool EventIsInsideWindow(nsWindow* aWindow);
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static bool RollupOnButtonDown(ULONG aMsg);
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static void RollupOnFocusLost(HWND aFocus);
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MRESULT ProcessMessage(ULONG msg, MPARAM mp1, MPARAM mp2);
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bool OnReposition(PSWP pNewSwp);
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bool OnPaint();
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bool OnMouseChord(MPARAM mp1, MPARAM mp2);
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bool OnDragDropMsg(ULONG msg, MPARAM mp1, MPARAM mp2,
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MRESULT& mr);
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bool CheckDragStatus(PRUint32 aAction, HPS* aHps);
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bool ReleaseIfDragHPS(HPS aHps);
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bool OnTranslateAccelerator(PQMSG pQmsg);
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bool OnQueryConvertPos(MPARAM mp1, MRESULT& mresult);
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bool DispatchKeyEvent(MPARAM mp1, MPARAM mp2);
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void InitEvent(nsGUIEvent& event, nsIntPoint* pt = 0);
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bool DispatchWindowEvent(nsGUIEvent* event);
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bool DispatchWindowEvent(nsGUIEvent* event,
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nsEventStatus& aStatus);
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bool DispatchCommandEvent(PRUint32 aEventCommand);
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bool DispatchDragDropEvent(PRUint32 aMsg);
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bool DispatchMoveEvent(PRInt32 aX, PRInt32 aY);
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bool DispatchResizeEvent(PRInt32 aClientX,
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PRInt32 aClientY);
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bool DispatchMouseEvent(PRUint32 aEventType,
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MPARAM mp1, MPARAM mp2,
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bool aIsContextMenuKey = false,
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PRInt16 aButton = nsMouseEvent::eLeftButton);
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bool DispatchActivationEvent(PRUint32 aEventType);
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bool DispatchScrollEvent(ULONG msg, MPARAM mp1, MPARAM mp2);
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friend MRESULT EXPENTRY fnwpNSWindow(HWND hwnd, ULONG msg,
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MPARAM mp1, MPARAM mp2);
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friend MRESULT EXPENTRY fnwpFrame(HWND hwnd, ULONG msg,
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MPARAM mp1, MPARAM mp2);
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friend class os2FrameWindow;
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HWND mWnd; // window handle
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nsWindow* mParent; // parent widget
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os2FrameWindow* mFrame; // ptr to os2FrameWindow helper object
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PRInt32 mWindowState; // current nsWindowState_* value
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bool mIsDestroying; // in destructor
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bool mInSetFocus; // prevent recursive calls
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bool mNoPaint; // true if window is never visible
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HPS mDragHps; // retrieved by DrgGetPS() during a drag
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PRUint32 mDragStatus; // set when object is being dragged over
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HWND mClipWnd; // used to clip plugin windows
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HPOINTER mCssCursorHPtr; // created by SetCursor(imgIContainer*)
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nsCOMPtr<imgIContainer> mCssCursorImg;// saved by SetCursor(imgIContainer*)
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nsRefPtr<gfxOS2Surface> mThebesSurface;
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#ifdef DEBUG_FOCUS
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int mWindowIdentifier; // a serial number for each new window
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#endif
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InputContext mInputContext;
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};
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//=============================================================================
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// nsChildWindow
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//=============================================================================
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// This only purpose of this subclass is to map NS_CHILD_CID to
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// some class other than nsWindow which is mapped to NS_WINDOW_CID.
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class nsChildWindow : public nsWindow {
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public:
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nsChildWindow() {}
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~nsChildWindow() {}
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};
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#endif // _nswindow_h
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//=============================================================================
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