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