trunk/Src/wptCurrWnd.cpp

/* wptCurrWnd.cpp - Current window code
 *      Copyright (C) 2001-2004 Timo Schulz
 *
 * This file is part of WinPT.
 *
 * WinPT is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 * 
 * WinPT is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with WinPT; if not, write to the Free Software Foundation, 
 * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <windows.h>

#include "wptW32API.h"
#include "wptErrors.h"
#include "wptVersion.h"

#define KEYDOWN( vcode, scode ) keybd_event( (vcode), (scode), 0, 0 )
#define KEYUP( vcode, scode)    keybd_event( (vcode), (scode), KEYEVENTF_KEYUP, 0 )

    
extern "C" HWND PTD_get_curr_hwnd( void );
extern "C" BOOL PTD_keyb_send( UINT *keys, UINT n_keys );
extern "C" int PTD_is_used( void );

static void
clip_clear (void)
{
    OpenClipboard (NULL);
    EmptyClipboard ();
    CloseClipboard ();
} /* clip_clear */


static int
clip_check( void )
{
    HANDLE clipmem;

    /* Arrrgg: it seems that we've to wait until the remote thread                
       processed the message. W32 said it does, but I don't think so :-((. */
    Sleep( 400 );
                
    if( OpenClipboard( NULL ) == FALSE )    
        return WPTERR_CLIP_OPEN;
    clipmem = GetClipboardData( CF_TEXT );
    if( clipmem == NULL ) {
        CloseClipboard( );      
        return WPTERR_CLIP_GET; 
    }
    CloseClipboard( );
    return 0;
} /* clip_check */


static void
wnd_msg_markall (void)
{
    unsigned keys[4] = {0};

    if( PTD_is_used() ) {
        keys[0] = VK_CONTROL | 0x8000;
        keys[1] = 'A' | 0x8000; 
        keys[2] = 'A';  
        keys[3] = VK_CONTROL;   
        PTD_keyb_send( keys, 4 );

    }
    else {
        KEYDOWN( VK_CONTROL, 0x1d );    
        KEYDOWN( (BYTE)'A', 0x1e );     
        KEYUP( (BYTE)'A', 0x1e );
        KEYUP( VK_CONTROL, 0x1d );      
    }
}


static void
wnd_msg_paste (void)
{
    unsigned keys[4] = {0};

    if( PTD_is_used() ) {
        keys[0] = VK_CONTROL | 0x8000;
        keys[1] = 'V' | 0x8000;
        keys[2] = 'V';
        keys[3] = VK_CONTROL;
        PTD_keyb_send( keys, 4 );       
    }
    else {
        KEYDOWN( VK_CONTROL, 0x1d );    
        KEYDOWN( (BYTE)'V', 0x2f );     
        KEYUP( (BYTE)'V', 0x2f );       
        KEYUP( VK_CONTROL, 0x1d );      
    }
}


static void
wnd_msg_copy (void)
{
    unsigned keys[4] = {0};

    if (PTD_is_used ()) {
        keys[0] = VK_CONTROL | 0x8000;
        keys[1] = 'C' | 0x8000;
        keys[2] = 'C';
        keys[3] = VK_CONTROL;
        PTD_keyb_send( keys, 4 );       
    }
    else {
        KEYDOWN( VK_CONTROL, 0x1d );
        KEYDOWN( (BYTE)'C', 0x2e );
        KEYUP( (BYTE)'C', 0x2e );
        KEYUP( VK_CONTROL, 0x1d );      
    }
} /* msg_wm_copy */


static inline void
wnd_msg_em_set_pos( HWND hwnd, int begin )
{
    SendMessage( hwnd, EM_SETSEL, 0, begin? 1 : -1 );
} /* wnd_msg_em_set_pos */


static HWND
get_curr_wnd( HWND main, int hotkey, HWND *r_main )
{
    HWND prev, fg;

    if( hotkey )
        prev = GetForegroundWindow();
    else {
        if( r_main )
            *r_main = GetNextWindow( main, GW_HWNDNEXT );
        return PTD_get_curr_hwnd( );
    }

    SetForegroundWindow( prev );

    AttachThreadInput( GetCurrentThreadId(),
                        GetWindowThreadProcessId( prev, NULL ),
                        TRUE );
    fg = GetFocus();
    AttachThreadInput( GetCurrentThreadId(),
                        GetWindowThreadProcessId( prev, NULL ),
                        FALSE );

    if( r_main )
        *r_main = prev;

    return fg;
} /* get_curr_wnd */


int
get_window_contents( HWND old_hwnd, curr_wnd_ctx *ctx, int *r_hotkey )
{
    HWND hwnd;
    int rc = 1, hotkey = 0;
    
    if( r_hotkey )
        hotkey = *r_hotkey;
        
    hwnd = get_curr_wnd( old_hwnd, hotkey, &ctx->main );
    if( hwnd == NULL )
        return rc;
    ctx->focus = hwnd;
    clip_clear( );
        
    AttachThreadInput( GetCurrentThreadId( ),
                        GetWindowThreadProcessId( hwnd, NULL ), 
                        TRUE );
    SetFocus( hwnd );
        
    /* First we try to send a simple clipboard copying command and check
       if the clipboard contains some text. */
    SendMessage( hwnd, WM_COPY, 0, 0 );
    if( !clip_check( ) ) {
        rc = 0; 
        goto leave;
    }
    /* Then the check if the window is an edit control */
    wnd_msg_em_set_pos( hwnd, 0 );
    SendMessage( hwnd, WM_COPY, 0, 0 );
    if( !clip_check( ) ) {
        rc = 0; 
        goto leave;
    }
        
    /* The last try is to send a mark all and copy to clipboard command */
    wnd_msg_markall ();
    wnd_msg_copy ();
    if( !clip_check( ) )
        rc = 0;

leave:
    AttachThreadInput( GetCurrentThreadId( ),                                      
                        GetWindowThreadProcessId( hwnd, NULL ),                            
                        FALSE );
    if( r_hotkey )
        *r_hotkey = 0; /* reset: we need this in any case */
    
    return rc;
} /* get_window_contents */


int
set_window_contents( HWND old_hwnd, curr_wnd_ctx *ctx )
{
    HWND hwnd, lost;    
        
    hwnd = ctx->focus;
    if( IsIconic( ctx->main ) )
        ShowWindow( hwnd, SW_SHOWNORMAL );
    SetForegroundWindow( hwnd );
        
    AttachThreadInput( GetCurrentThreadId( ),
                        GetWindowThreadProcessId( hwnd, NULL ),
                        TRUE );
        
    lost = SetFocus( hwnd );

    wnd_msg_em_set_pos( hwnd, 0 );
    wnd_msg_paste ();
    wnd_msg_em_set_pos( hwnd, 1 );
        
    AttachThreadInput( GetCurrentThreadId(),
                        GetWindowThreadProcessId( hwnd, NULL ),
                        FALSE );
        
    SetForegroundWindow( lost );

    return 0;
} /* set_window_contents */
1	/* wptCurrWnd.cpp - Current window code
2	* Copyright (C) 2001-2004 Timo Schulz
3	*
4	* This file is part of WinPT.
5	*
6	* WinPT is free software; you can redistribute it and/or modify
7	* it under the terms of the GNU General Public License as published by
8	* the Free Software Foundation; either version 2 of the License, or
9	* (at your option) any later version.
10	*
11	* WinPT is distributed in the hope that it will be useful,
12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14	* GNU General Public License for more details.
15	*
16	* You should have received a copy of the GNU General Public License
17	* along with WinPT; if not, write to the Free Software Foundation,
18	* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
19	*/
20
21	#ifdef HAVE_CONFIG_H
22	#include <config.h>
23	#endif
24
25	#include <windows.h>
26
27	#include "wptW32API.h"
28	#include "wptErrors.h"
29	#include "wptVersion.h"
30
31	#define KEYDOWN( vcode, scode ) keybd_event( (vcode), (scode), 0, 0 )
32	#define KEYUP( vcode, scode) keybd_event( (vcode), (scode), KEYEVENTF_KEYUP, 0 )
33
34
35	extern "C" HWND PTD_get_curr_hwnd( void );
36	extern "C" BOOL PTD_keyb_send( UINT *keys, UINT n_keys );
37	extern "C" int PTD_is_used( void );
38
39	static void
40	clip_clear (void)
41	{
42	OpenClipboard (NULL);
43	EmptyClipboard ();
44	CloseClipboard ();
45	} /* clip_clear */
46
47
48	static int
49	clip_check( void )
50	{
51	HANDLE clipmem;
52
53	/* Arrrgg: it seems that we've to wait until the remote thread
54	processed the message. W32 said it does, but I don't think so :-((. */
55	Sleep( 400 );
56
57	if( OpenClipboard( NULL ) == FALSE )
58	return WPTERR_CLIP_OPEN;
59	clipmem = GetClipboardData( CF_TEXT );
60	if( clipmem == NULL ) {
61	CloseClipboard( );
62	return WPTERR_CLIP_GET;
63	}
64	CloseClipboard( );
65	return 0;
66	} /* clip_check */
67
68
69	static void
70	wnd_msg_markall (void)
71	{
72	unsigned keys[4] = {0};
73
74	if( PTD_is_used() ) {
75	keys[0] = VK_CONTROL \| 0x8000;
76	keys[1] = 'A' \| 0x8000;
77	keys[2] = 'A';
78	keys[3] = VK_CONTROL;
79	PTD_keyb_send( keys, 4 );
80
81	}
82	else {
83	KEYDOWN( VK_CONTROL, 0x1d );
84	KEYDOWN( (BYTE)'A', 0x1e );
85	KEYUP( (BYTE)'A', 0x1e );
86	KEYUP( VK_CONTROL, 0x1d );
87	}
88	}
89
90
91	static void
92	wnd_msg_paste (void)
93	{
94	unsigned keys[4] = {0};
95
96	if( PTD_is_used() ) {
97	keys[0] = VK_CONTROL \| 0x8000;
98	keys[1] = 'V' \| 0x8000;
99	keys[2] = 'V';
100	keys[3] = VK_CONTROL;
101	PTD_keyb_send( keys, 4 );
102	}
103	else {
104	KEYDOWN( VK_CONTROL, 0x1d );
105	KEYDOWN( (BYTE)'V', 0x2f );
106	KEYUP( (BYTE)'V', 0x2f );
107	KEYUP( VK_CONTROL, 0x1d );
108	}
109	}
110
111
112	static void
113	wnd_msg_copy (void)
114	{
115	unsigned keys[4] = {0};
116
117	if (PTD_is_used ()) {
118	keys[0] = VK_CONTROL \| 0x8000;
119	keys[1] = 'C' \| 0x8000;
120	keys[2] = 'C';
121	keys[3] = VK_CONTROL;
122	PTD_keyb_send( keys, 4 );
123	}
124	else {
125	KEYDOWN( VK_CONTROL, 0x1d );
126	KEYDOWN( (BYTE)'C', 0x2e );
127	KEYUP( (BYTE)'C', 0x2e );
128	KEYUP( VK_CONTROL, 0x1d );
129	}
130	} /* msg_wm_copy */
131
132
133	static inline void
134	wnd_msg_em_set_pos( HWND hwnd, int begin )
135	{
136	SendMessage( hwnd, EM_SETSEL, 0, begin? 1 : -1 );
137	} /* wnd_msg_em_set_pos */
138
139
140	static HWND
141	get_curr_wnd( HWND main, int hotkey, HWND *r_main )
142	{
143	HWND prev, fg;
144
145	if( hotkey )
146	prev = GetForegroundWindow();
147	else {
148	if( r_main )
149	*r_main = GetNextWindow( main, GW_HWNDNEXT );
150	return PTD_get_curr_hwnd( );
151	}
152
153	SetForegroundWindow( prev );
154
155	AttachThreadInput( GetCurrentThreadId(),
156	GetWindowThreadProcessId( prev, NULL ),
157	TRUE );
158	fg = GetFocus();
159	AttachThreadInput( GetCurrentThreadId(),
160	GetWindowThreadProcessId( prev, NULL ),
161	FALSE );
162
163	if( r_main )
164	*r_main = prev;
165
166	return fg;
167	} /* get_curr_wnd */
168
169
170	int
171	get_window_contents( HWND old_hwnd, curr_wnd_ctx ctx, int r_hotkey )
172	{
173	HWND hwnd;
174	int rc = 1, hotkey = 0;
175
176	if( r_hotkey )
177	hotkey = *r_hotkey;
178
179	hwnd = get_curr_wnd( old_hwnd, hotkey, &ctx->main );
180	if( hwnd == NULL )
181	return rc;
182	ctx->focus = hwnd;
183	clip_clear( );
184
185	AttachThreadInput( GetCurrentThreadId( ),
186	GetWindowThreadProcessId( hwnd, NULL ),
187	TRUE );
188	SetFocus( hwnd );
189
190	/* First we try to send a simple clipboard copying command and check
191	if the clipboard contains some text. */
192	SendMessage( hwnd, WM_COPY, 0, 0 );
193	if( !clip_check( ) ) {
194	rc = 0;
195	goto leave;
196	}
197	/* Then the check if the window is an edit control */
198	wnd_msg_em_set_pos( hwnd, 0 );
199	SendMessage( hwnd, WM_COPY, 0, 0 );
200	if( !clip_check( ) ) {
201	rc = 0;
202	goto leave;
203	}
204
205	/* The last try is to send a mark all and copy to clipboard command */
206	wnd_msg_markall ();
207	wnd_msg_copy ();
208	if( !clip_check( ) )
209	rc = 0;
210
211	leave:
212	AttachThreadInput( GetCurrentThreadId( ),
213	GetWindowThreadProcessId( hwnd, NULL ),
214	FALSE );
215	if( r_hotkey )
216	r_hotkey = 0; / reset: we need this in any case */
217
218	return rc;
219	} /* get_window_contents */
220
221
222	int
223	set_window_contents( HWND old_hwnd, curr_wnd_ctx *ctx )
224	{
225	HWND hwnd, lost;
226
227	hwnd = ctx->focus;
228	if( IsIconic( ctx->main ) )
229	ShowWindow( hwnd, SW_SHOWNORMAL );
230	SetForegroundWindow( hwnd );
231
232	AttachThreadInput( GetCurrentThreadId( ),
233	GetWindowThreadProcessId( hwnd, NULL ),
234	TRUE );
235
236	lost = SetFocus( hwnd );
237
238	wnd_msg_em_set_pos( hwnd, 0 );
239	wnd_msg_paste ();
240	wnd_msg_em_set_pos( hwnd, 1 );
241
242	AttachThreadInput( GetCurrentThreadId(),
243	GetWindowThreadProcessId( hwnd, NULL ),
244	FALSE );
245
246	SetForegroundWindow( lost );
247
248	return 0;
249	} /* set_window_contents */