1/*
2
3InterfaceUtils.cpp
4
5Copyright (c) 2002 Haiku.
6
7Author:
8	Michael Pfeiffer
9
10Permission is hereby granted, free of charge, to any person obtaining a copy of
11this software and associated documentation files (the "Software"), to deal in
12the Software without restriction, including without limitation the rights to
13use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
14of the Software, and to permit persons to whom the Software is furnished to do
15so, subject to the following conditions:
16
17The above copyright notice and this permission notice shall be included in all
18copies or substantial portions of the Software.
19
20THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
21IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
22FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
23AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
24LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
25OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
26THE SOFTWARE.
27
28*/
29#ifndef _INTERFACE_UTILS_H
30#define _INTERFACE_UTILS_H
31
32
33#include <AppDefs.h>
34#include <MessageFilter.h>
35#include <Window.h>
36
37
38class BHandler;
39class BMessage;
40
41
42class EscapeMessageFilter : public BMessageFilter
43{
44public:
45							EscapeMessageFilter(BWindow *window, int32 what);
46			filter_result	Filter(BMessage *msg, BHandler **target);
47
48private:
49			BWindow*		fWindow;
50			int32			fWhat;
51};
52
53
54class HWindow : public BWindow
55{
56	typedef BWindow 		inherited;
57public:
58							HWindow(BRect frame, const char *title,
59								window_type type, uint32 flags,
60								uint32 workspace = B_CURRENT_WORKSPACE,
61								uint32 escape_msg = B_QUIT_REQUESTED);
62							HWindow(BRect frame, const char *title,
63								window_look look, window_feel feel, uint32 flags,
64								uint32 workspace = B_CURRENT_WORKSPACE,
65								uint32 escape_msg = B_QUIT_REQUESTED);
66	virtual					~HWindow() {}
67
68	virtual void			MessageReceived(BMessage* m);
69	virtual void			AboutRequested();
70	virtual const char*		AboutText() const { return NULL; }
71
72protected:
73			void			Init(uint32 escape_msg);
74};
75
76
77class BlockingWindow : public HWindow
78{
79	typedef HWindow 		inherited;
80public:
81							BlockingWindow(BRect frame, const char *title,
82								window_type type, uint32 flags,
83								uint32 workspace = B_CURRENT_WORKSPACE,
84								uint32 escape_msg = B_QUIT_REQUESTED);
85							BlockingWindow(BRect frame, const char *title,
86								window_look look, window_feel feel, uint32 flags,
87								uint32 workspace = B_CURRENT_WORKSPACE,
88								uint32 escape_msg = B_QUIT_REQUESTED);
89	virtual					~BlockingWindow();
90
91	virtual bool			QuitRequested();
92	// Quit() is called by child class with result code
93			void			Quit(status_t result);
94	// Show window and wait for it to quit, returns result code
95	virtual status_t		Go();
96	// Or quit window e.g. something went wrong in constructor
97	virtual void			Quit();
98	// Sets the result that is returned when the user closes the window.
99	// Default is B_OK.
100			void			SetUserQuitResult(status_t result);
101
102private:
103			void			Init(const char* title);
104
105private:
106			status_t		fUserQuitResult;
107			bool			fReadyToQuit;
108			sem_id			fExitSem;
109			status_t*		fResult;
110};
111
112#endif
113