pjs/lib/mac/UserInterface/CContextMenuAttachment.h

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C
Исходник Обычный вид История

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/* -*- 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 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
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*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
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*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is Netscape
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* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
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*/
// Written by John R. McMullen
#pragma once
#include <LAttachment.h>
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#include "Netscape_Constants.h" // for EClickState
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class LCommander;
struct SMouseDownEvent;
class LMenu;
//======================================
class CContextMenuAttachment : public LAttachment
// By adding this to a pane in constructor, and defining a corresponding menu, you get
// a context menu in that pane.
//
// Your menu should have all the possible commands. This attachment class will use the
// FindCommandStatus call for your pane, and remove any items that are not currently available
// before calling PopupMenuSelect.
//
// If necessary, your pane's FindCommandStatus can distinguish context menu calls from other
// calls by using ::StillDown(), because the normal menu enabling in PowerPlant does NOT
// happen while the mouse is pressed.
//
// This listens to mouse clicks, waits for timeout, handles popup menu etc. It will also
// handle changing the cursor if called from within AdjustCursorSelf(), etc.
//
// Must be attached via constructor, just like CPaneEnabler. [This is _so_ not true (pinkerton)]
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//======================================
{
public:
enum { class_ID = 'CxMn', msg_ContextMenu = 'CxMn', msg_ContextMenuCursor = 'CxMC'};
CContextMenuAttachment(ResIDT inMenuID, ResIDT inTextTraitsID);
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CContextMenuAttachment(LStream* inStream);
virtual ~CContextMenuAttachment();
struct SExecuteParams
{
const SMouseDownEvent* inMouseDown;
EClickState outResult;
};
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enum { kDefaultDelay = -1};
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// Public utility method
static EClickState WaitMouseAction(
const Point& inInitialPoint,
Int32 inWhen,
Int32 inDelay = kDefaultDelay);
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protected:
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enum { kContextualCursorID = 6610 };
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virtual Boolean Execute( MessageT inMessage, void *ioParam );
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virtual void ExecuteSelf(
MessageT inMessage,
void* ioParam);
void DoPopup(
const SMouseDownEvent& inMouseDown,
EClickState& outResult);
virtual UInt16 PruneMenu(LMenu* inMenu);
// override to do something other than read in a menu from the resource fork
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virtual LMenu* BuildMenu( ) ;
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virtual void ChangeCursor( const EventRecord* inEvent );
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//----
// Data
//----
private:
ResIDT mMenuID;
ResIDT mTextTraitsID;
LPane* mHostView;
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LCommander* mHostCommander; // same as view, precast for convenience
}; // class CContextMenuAttachment