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"

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

    
extern HWND PTD_get_curr_hwnd( void );
extern BOOL PTD_keyb_send( UINT *keys, UINT n_keys );
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( HWND hwnd )
{
    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 );      
    }
} /* msg_wm_markall */


static void
wnd_msg_paste( HWND hwnd )
{
    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 );      
    }
} /* msg_wm_paste */


static void
wnd_msg_copy( HWND hwnd )
{
    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( hwnd );
    wnd_msg_copy( hwnd );
    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( hwnd );
    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
30			#define KEYDOWN( vcode, scode ) keybd_event( (vcode), (scode), 0, 0 )
31			#define KEYUP( vcode, scode) keybd_event( (vcode), (scode), KEYEVENTF_KEYUP, 0 )
32
33
34			extern HWND PTD_get_curr_hwnd( void );
35			extern BOOL PTD_keyb_send( UINT *keys, UINT n_keys );
36			int PTD_is_used( void );
37
38			static void
39			clip_clear (void)
40			{
41			OpenClipboard (NULL);
42			EmptyClipboard ();
43			CloseClipboard ();
44			} /* clip_clear */
45
46
47			static int
48			clip_check( void )
49			{
50			HANDLE clipmem;
51
52			/* Arrrgg: it seems that we've to wait until the remote thread
53			processed the message. W32 said it does, but I don't think so :-((. */
54			Sleep( 400 );
55
56			if( OpenClipboard( NULL ) == FALSE )
57			return WPTERR_CLIP_OPEN;
58			clipmem = GetClipboardData( CF_TEXT );
59			if( clipmem == NULL ) {
60			CloseClipboard( );
61			return WPTERR_CLIP_GET;
62			}
63			CloseClipboard( );
64			return 0;
65			} /* clip_check */
66
67			static void
68			wnd_msg_markall( HWND hwnd )
69			{
70			unsigned keys[4] = {0};
71
72			if( PTD_is_used() ) {
73			keys[0] = VK_CONTROL \| 0x8000;
74			keys[1] = 'A' \| 0x8000;
75			keys[2] = 'A';
76			keys[3] = VK_CONTROL;
77			PTD_keyb_send( keys, 4 );
78
79			}
80			else {
81			KEYDOWN( VK_CONTROL, 0x1d );
82			KEYDOWN( (BYTE)'A', 0x1e );
83			KEYUP( (BYTE)'A', 0x1e );
84			KEYUP( VK_CONTROL, 0x1d );
85			}
86			} /* msg_wm_markall */
87
88
89			static void
90			wnd_msg_paste( HWND hwnd )
91			{
92			unsigned keys[4] = {0};
93
94			if( PTD_is_used() ) {
95			keys[0] = VK_CONTROL \| 0x8000;
96			keys[1] = 'V' \| 0x8000;
97			keys[2] = 'V';
98			keys[3] = VK_CONTROL;
99			PTD_keyb_send( keys, 4 );
100			}
101			else {
102			KEYDOWN( VK_CONTROL, 0x1d );
103			KEYDOWN( (BYTE)'V', 0x2f );
104			KEYUP( (BYTE)'V', 0x2f );
105			KEYUP( VK_CONTROL, 0x1d );
106			}
107			} /* msg_wm_paste */
108
109
110			static void
111			wnd_msg_copy( HWND hwnd )
112			{
113			unsigned keys[4] = {0};
114
115			if( PTD_is_used() ) {
116			keys[0] = VK_CONTROL \| 0x8000;
117			keys[1] = 'C' \| 0x8000;
118			keys[2] = 'C';
119			keys[3] = VK_CONTROL;
120			PTD_keyb_send( keys, 4 );
121			}
122			else {
123			KEYDOWN( VK_CONTROL, 0x1d );
124			KEYDOWN( (BYTE)'C', 0x2e );
125			KEYUP( (BYTE)'C', 0x2e );
126			KEYUP( VK_CONTROL, 0x1d );
127			}
128			} /* msg_wm_copy */
129
130
131			static inline void
132			wnd_msg_em_set_pos( HWND hwnd, int begin )
133			{
134			SendMessage( hwnd, EM_SETSEL, 0, begin? 1 : -1 );
135			} /* wnd_msg_em_set_pos */
136
137
138			static HWND
139			get_curr_wnd( HWND main, int hotkey, HWND *r_main )
140			{
141			HWND prev, fg;
142
143			if( hotkey )
144			prev = GetForegroundWindow();
145			else {
146			if( r_main )
147			*r_main = GetNextWindow( main, GW_HWNDNEXT );
148			return PTD_get_curr_hwnd( );
149			}
150
151			SetForegroundWindow( prev );
152
153			AttachThreadInput( GetCurrentThreadId(),
154			GetWindowThreadProcessId( prev, NULL ),
155			TRUE );
156			fg = GetFocus();
157			AttachThreadInput( GetCurrentThreadId(),
158			GetWindowThreadProcessId( prev, NULL ),
159			FALSE );
160
161			if( r_main )
162			*r_main = prev;
163
164			return fg;
165			} /* get_curr_wnd */
166
167
168			int
169			get_window_contents( HWND old_hwnd, curr_wnd_ctx ctx, int r_hotkey )
170			{
171			HWND hwnd;
172			int rc = 1, hotkey = 0;
173
174			if( r_hotkey )
175			hotkey = *r_hotkey;
176
177			hwnd = get_curr_wnd( old_hwnd, hotkey, &ctx->main );
178			if( hwnd == NULL )
179			return rc;
180			ctx->focus = hwnd;
181			clip_clear( );
182
183			AttachThreadInput( GetCurrentThreadId( ),
184			GetWindowThreadProcessId( hwnd, NULL ),
185			TRUE );
186			SetFocus( hwnd );
187
188			/* First we try to send a simple clipboard copying command and check
189			if the clipboard contains some text. */
190			SendMessage( hwnd, WM_COPY, 0, 0 );
191			if( !clip_check( ) ) {
192			rc = 0;
193			goto leave;
194			}
195			/* Then the check if the window is an edit control */
196			wnd_msg_em_set_pos( hwnd, 0 );
197			SendMessage( hwnd, WM_COPY, 0, 0 );
198			if( !clip_check( ) ) {
199			rc = 0;
200			goto leave;
201			}
202
203			/* The last try is to send a mark all and copy to clipboard command */
204			wnd_msg_markall( hwnd );
205			wnd_msg_copy( hwnd );
206			if( !clip_check( ) )
207			rc = 0;
208
209			leave:
210			AttachThreadInput( GetCurrentThreadId( ),
211			GetWindowThreadProcessId( hwnd, NULL ),
212			FALSE );
213			if( r_hotkey )
214			r_hotkey = 0; / reset: we need this in any case */
215
216			return rc;
217			} /* get_window_contents */
218
219
220			int
221			set_window_contents( HWND old_hwnd, curr_wnd_ctx *ctx )
222			{
223			HWND hwnd, lost;
224
225			hwnd = ctx->focus;
226			if( IsIconic( ctx->main ) )
227			ShowWindow( hwnd, SW_SHOWNORMAL );
228			SetForegroundWindow( hwnd );
229
230			AttachThreadInput( GetCurrentThreadId( ),
231			GetWindowThreadProcessId( hwnd, NULL ),
232			TRUE );
233
234			lost = SetFocus( hwnd );
235
236			wnd_msg_em_set_pos( hwnd, 0 );
237			wnd_msg_paste( hwnd );
238			wnd_msg_em_set_pos( hwnd, 1 );
239
240			AttachThreadInput( GetCurrentThreadId(),
241			GetWindowThreadProcessId( hwnd, NULL ),
242			FALSE );
243
244			SetForegroundWindow( lost );
245
246			return 0;
247			} /* set_window_contents */