1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
|
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla 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/MPL/
*
* 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.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef nsImageMap_h___
#define nsImageMap_h___
#include "nsISupports.h"
#include "nsCoord.h"
#include "nsVoidArray.h"
#include "nsStubDocumentObserver.h"
#include "nsIDOMFocusListener.h"
#include "nsIFrame.h"
#include "nsIImageMap.h"
class nsIDOMHTMLAreaElement;
class nsIDOMHTMLMapElement;
class nsPresContext;
class nsIRenderingContext;
class nsIURI;
class nsString;
class nsIDOMEvent;
class nsImageMap : public nsStubDocumentObserver, public nsIDOMFocusListener,
public nsIImageMap
{
public:
nsImageMap();
nsresult Init(nsIPresShell* aPresShell, nsIFrame* aImageFrame, nsIDOMHTMLMapElement* aMap);
/**
* See if the given aX,aY <b>pixel</b> coordinates are in the image
* map. If they are then PR_TRUE is returned and aContent points to the
* found area. If the coordinates are not in the map then PR_FALSE
* is returned.
*/
PRBool IsInside(nscoord aX, nscoord aY,
nsIContent** aContent) const;
void Draw(nsPresContext* aCX, nsIRenderingContext& aRC);
/**
* Called just before the nsImageFrame releases us.
* Used to break the cycle caused by the DOM listener.
*/
void Destroy(void);
// nsISupports
NS_DECL_ISUPPORTS
// nsIDocumentObserver
virtual void AttributeChanged(nsIDocument* aDocument, nsIContent* aContent,
PRInt32 aNameSpaceID, nsIAtom* aAttribute,
PRInt32 aModType);
virtual void ContentAppended(nsIDocument* aDocument, nsIContent* aContainer,
PRInt32 aNewIndexInContainer);
virtual void ContentInserted(nsIDocument* aDocument, nsIContent* aContainer,
nsIContent* aChild, PRInt32 aIndexInContainer);
virtual void ContentRemoved(nsIDocument* aDocument, nsIContent* aContainer,
nsIContent* aChild, PRInt32 aIndexInContainer);
//nsIDOMFocusListener
NS_IMETHOD Focus(nsIDOMEvent* aEvent);
NS_IMETHOD Blur(nsIDOMEvent* aEvent);
NS_IMETHOD HandleEvent(nsIDOMEvent* aEvent);
//nsIImageMap
NS_IMETHOD GetBoundsForAreaContent(nsIContent *aContent,
nsPresContext* aPresContext,
nsRect& aBounds);
protected:
virtual ~nsImageMap();
void FreeAreas();
nsresult UpdateAreas();
nsresult UpdateAreasForBlock(nsIContent* aParent, PRBool* aFoundAnchor);
nsresult AddArea(nsIContent* aArea);
nsresult ChangeFocus(nsIDOMEvent* aEvent, PRBool aFocus);
void MaybeUpdateAreas(nsIContent *aContent);
nsIPresShell* mPresShell; // WEAK - owns the frame that owns us
nsIFrame* mImageFrame; // the frame that owns us
nsIDocument* mDocument; // WEAK - the imagemap will not outlive the document
nsCOMPtr<nsIContent> mMap;
nsAutoVoidArray mAreas; // almost always has some entries
PRBool mContainsBlockContents;
};
#endif /* nsImageMap_h___ */
|
