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	werner	36	/* 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	werner	57	#include "wptVersion.h"
30	werner	36
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	twoaday	225	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	werner	36
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	twoaday	225
69	werner	36	static void
70	twoaday	225	wnd_msg_markall (void)
71	werner	36	{
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	twoaday	225	}
89	werner	36
90
91			static void
92	twoaday	225	wnd_msg_paste (void)
93	werner	36	{
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	twoaday	225	}
110	werner	36
111
112			static void
113	twoaday	225	wnd_msg_copy (void)
114	werner	36	{
115			unsigned keys[4] = {0};
116
117	twoaday	225	if (PTD_is_used ()) {
118	werner	36	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	twoaday	225	wnd_msg_markall ();
207			wnd_msg_copy ();
208	werner	36	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	twoaday	225	wnd_msg_paste ();
240	werner	36	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 */