pjs/cmd/macfe/central/CMochaHacks.h

125 строки
4.3 KiB
C
Исходник Обычный вид История

1998-03-28 05:44:41 +03:00
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
/*
* macmocha.h
* MacFE mocha hacks
*
*/
#include "structs.h" // mjc
#include "libevent.h"
/*
* static class that encapsulates most of the Macha hacks
*/
class CMochaHacks
{
private:
static LO_Element* sMouseOverElement; // layout element the cursor is over
static MWContext* sMouseOverElementContext; // context associated with sMouseOverElement
static LO_AnchorData* sMouseOverMapArea; // AREA tag the cursor is over
public:
static void ClearSelectionForContext( MWContext* context )
{
if (context == sMouseOverElementContext)
{
sMouseOverElement = NULL;
sMouseOverElementContext = NULL;
sMouseOverMapArea = NULL;
}
}
static void SendOutOfElementEvent(MWContext * winContext, CL_Layer* layer, SPoint32 where); // add layer param 1997-03-02 mjc
static void SendOutOfMapAreaEvent(MWContext * winContext, CL_Layer* layer, SPoint32 where); // add layer param 1997-03-02 mjc
static void ResetMochaMouse();
static Boolean IsMouseOverElement(LO_Element* inElement)
{ return inElement == sMouseOverElement; }
static Boolean IsMouseOverMapArea(LO_AnchorData* inAnchorData)
{ return inAnchorData == sMouseOverMapArea; }
static void SetMouseOverElement(LO_Element* inElement, MWContext* inElementContext = NULL)
{
sMouseOverElement = inElement;
sMouseOverElementContext = inElementContext;
}
static void RemoveReferenceToMouseOverElementContext(MWContext *context)
{
if (sMouseOverElementContext == context)
sMouseOverElementContext = NULL;
}
static void SetMouseOverMapArea(LO_AnchorData* inAnchorData)
{ sMouseOverMapArea = inAnchorData; }
static LO_Element* GetMouseOverElement()
{ return sMouseOverElement; }
static LO_AnchorData* GetMouseOverMapArea()
{ return sMouseOverMapArea; }
static uint32 MochaModifiers(const UInt16 inModifiers);
static uint32 MochaModifiersFromKeyboard(void);
// manage windows declared as dependent in javascript
static Boolean IsDependent(MWContext* inContext);
static void AddDependent(MWContext* inParent, MWContext* inChild);
static void RemoveDependents(MWContext* inContext);
// Whenever a window or frame moves or resizes send an event to javascript
static void SendMoveEvent(MWContext* inContext, int32 inX, int32 inY);
static void SendEvent(MWContext* inContext, int32 inType, LO_Element* inElement = nil);
// Send navigation events - currently not cancellable
static void SendBackEvent(MWContext* inContext)
{ SendEvent(inContext, EVENT_BACK); }
static void SendForwardEvent(MWContext* inContext)
{ SendEvent(inContext, EVENT_FORWARD); }
};
/*
* CMochaEventCallback
* class that encapsulates sending of mocha events
* Subclasses should override EventComplete
*/
class CMochaEventCallback {
public:
// Constructors
CMochaEventCallback();
virtual ~CMochaEventCallback();
// Mocha interface
void SendEvent(MWContext * context, LO_Element * element, int32 type, CL_Layer* layer, SPoint32 where);
void SendEvent(MWContext * context, LO_AnchorData * data, int32 type, CL_Layer* layer, SPoint32 where);
// MochaCallback calls EventComplete. You'll be deleted after this call
virtual void Complete(MWContext * context, LO_Element * element,
int32 type, ETEventStatus status);
static void MochaCallback(MWContext * context, LO_Element * element,
int32 type, void * inCallback, ETEventStatus status);
private:
// Old Mocha calls used to accept either LO_Element, or LO_AnchorData
// New ones only accept LO_Element, so sometimes we need to create/dispose
// dummy layout elements. This is encapsulated in this class
LO_Element * fDummyElement;
};