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
 */

#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	twoaday	2	/* 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			#include <windows.h>
22
23			#include "wptW32API.h"
24			#include "wptErrors.h"
25
26			#define KEYDOWN( vcode, scode ) keybd_event( (vcode), (scode), 0, 0 )
27			#define KEYUP( vcode, scode) keybd_event( (vcode), (scode), KEYEVENTF_KEYUP, 0 )
28
29
30			extern HWND PTD_get_curr_hwnd( void );
31			extern BOOL PTD_keyb_send( UINT *keys, UINT n_keys );
32			int PTD_is_used( void );
33
34			static void
35	twoaday	20	clip_clear (void)
36	twoaday	2	{
37	twoaday	20	OpenClipboard (NULL);
38			EmptyClipboard ();
39			CloseClipboard ();
40	twoaday	2	} /* clip_clear */
41
42
43			static int
44			clip_check( void )
45			{
46			HANDLE clipmem;
47
48			/* Arrrgg: it seems that we've to wait until the remote thread
49			processed the message. W32 said it does, but I don't think so :-((. */
50			Sleep( 400 );
51
52			if( OpenClipboard( NULL ) == FALSE )
53			return WPTERR_CLIP_OPEN;
54			clipmem = GetClipboardData( CF_TEXT );
55			if( clipmem == NULL ) {
56			CloseClipboard( );
57			return WPTERR_CLIP_GET;
58			}
59			CloseClipboard( );
60			return 0;
61			} /* clip_check */
62
63			static void
64			wnd_msg_markall( HWND hwnd )
65			{
66			unsigned keys[4] = {0};
67
68			if( PTD_is_used() ) {
69			keys[0] = VK_CONTROL \| 0x8000;
70			keys[1] = 'A' \| 0x8000;
71			keys[2] = 'A';
72			keys[3] = VK_CONTROL;
73			PTD_keyb_send( keys, 4 );
74
75			}
76			else {
77			KEYDOWN( VK_CONTROL, 0x1d );
78			KEYDOWN( (BYTE)'A', 0x1e );
79			KEYUP( (BYTE)'A', 0x1e );
80			KEYUP( VK_CONTROL, 0x1d );
81			}
82			} /* msg_wm_markall */
83
84
85			static void
86			wnd_msg_paste( HWND hwnd )
87			{
88			unsigned keys[4] = {0};
89
90			if( PTD_is_used() ) {
91			keys[0] = VK_CONTROL \| 0x8000;
92			keys[1] = 'V' \| 0x8000;
93			keys[2] = 'V';
94			keys[3] = VK_CONTROL;
95			PTD_keyb_send( keys, 4 );
96			}
97			else {
98			KEYDOWN( VK_CONTROL, 0x1d );
99			KEYDOWN( (BYTE)'V', 0x2f );
100			KEYUP( (BYTE)'V', 0x2f );
101			KEYUP( VK_CONTROL, 0x1d );
102			}
103			} /* msg_wm_paste */
104
105
106			static void
107			wnd_msg_copy( HWND hwnd )
108			{
109			unsigned keys[4] = {0};
110
111			if( PTD_is_used() ) {
112			keys[0] = VK_CONTROL \| 0x8000;
113			keys[1] = 'C' \| 0x8000;
114			keys[2] = 'C';
115			keys[3] = VK_CONTROL;
116			PTD_keyb_send( keys, 4 );
117			}
118			else {
119			KEYDOWN( VK_CONTROL, 0x1d );
120			KEYDOWN( (BYTE)'C', 0x2e );
121			KEYUP( (BYTE)'C', 0x2e );
122			KEYUP( VK_CONTROL, 0x1d );
123			}
124			} /* msg_wm_copy */
125
126
127			static inline void
128			wnd_msg_em_set_pos( HWND hwnd, int begin )
129			{
130			SendMessage( hwnd, EM_SETSEL, 0, begin? 1 : -1 );
131			} /* wnd_msg_em_set_pos */
132
133
134			static HWND
135			get_curr_wnd( HWND main, int hotkey, HWND *r_main )
136			{
137			HWND prev, fg;
138
139			if( hotkey )
140			prev = GetForegroundWindow();
141			else {
142			if( r_main )
143			*r_main = GetNextWindow( main, GW_HWNDNEXT );
144			return PTD_get_curr_hwnd( );
145			}
146
147			SetForegroundWindow( prev );
148
149			AttachThreadInput( GetCurrentThreadId(),
150			GetWindowThreadProcessId( prev, NULL ),
151			TRUE );
152			fg = GetFocus();
153			AttachThreadInput( GetCurrentThreadId(),
154			GetWindowThreadProcessId( prev, NULL ),
155			FALSE );
156
157			if( r_main )
158			*r_main = prev;
159
160			return fg;
161			} /* get_curr_wnd */
162
163
164			int
165			get_window_contents( HWND old_hwnd, curr_wnd_ctx ctx, int r_hotkey )
166			{
167			HWND hwnd;
168			int rc = 1, hotkey = 0;
169
170			if( r_hotkey )
171			hotkey = *r_hotkey;
172
173			hwnd = get_curr_wnd( old_hwnd, hotkey, &ctx->main );
174			if( hwnd == NULL )
175			return rc;
176			ctx->focus = hwnd;
177			clip_clear( );
178
179			AttachThreadInput( GetCurrentThreadId( ),
180			GetWindowThreadProcessId( hwnd, NULL ),
181			TRUE );
182			SetFocus( hwnd );
183
184			/* First we try to send a simple clipboard copying command and check
185			if the clipboard contains some text. */
186			SendMessage( hwnd, WM_COPY, 0, 0 );
187			if( !clip_check( ) ) {
188			rc = 0;
189			goto leave;
190			}
191			/* Then the check if the window is an edit control */
192			wnd_msg_em_set_pos( hwnd, 0 );
193			SendMessage( hwnd, WM_COPY, 0, 0 );
194			if( !clip_check( ) ) {
195			rc = 0;
196			goto leave;
197			}
198
199			/* The last try is to send a mark all and copy to clipboard command */
200			wnd_msg_markall( hwnd );
201			wnd_msg_copy( hwnd );
202			if( !clip_check( ) )
203			rc = 0;
204
205			leave:
206			AttachThreadInput( GetCurrentThreadId( ),
207			GetWindowThreadProcessId( hwnd, NULL ),
208			FALSE );
209			if( r_hotkey )
210			r_hotkey = 0; / reset: we need this in any case */
211
212			return rc;
213			} /* get_window_contents */
214
215
216			int
217			set_window_contents( HWND old_hwnd, curr_wnd_ctx *ctx )
218			{
219			HWND hwnd, lost;
220
221			hwnd = ctx->focus;
222			if( IsIconic( ctx->main ) )
223			ShowWindow( hwnd, SW_SHOWNORMAL );
224			SetForegroundWindow( hwnd );
225
226			AttachThreadInput( GetCurrentThreadId( ),
227			GetWindowThreadProcessId( hwnd, NULL ),
228			TRUE );
229
230			lost = SetFocus( hwnd );
231
232			wnd_msg_em_set_pos( hwnd, 0 );
233			wnd_msg_paste( hwnd );
234			wnd_msg_em_set_pos( hwnd, 1 );
235
236			AttachThreadInput( GetCurrentThreadId(),
237			GetWindowThreadProcessId( hwnd, NULL ),
238			FALSE );
239
240			SetForegroundWindow( lost );
241
242			return 0;
243			} /* set_window_contents */