156 lines
3.9 KiB
C
156 lines
3.9 KiB
C
/*
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* Focus functions
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*
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* Copyright 1993 David Metcalfe
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* 1994 Alexandre Julliard
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* 1995 Alex Korobka
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*
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*/
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#include "win.h"
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#include "winpos.h"
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#include "hook.h"
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#include "color.h"
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#include "message.h"
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#include "options.h"
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static HWND32 hwndFocus = 0;
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/*****************************************************************
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* FOCUS_SetXFocus
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*
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* Set the X focus.
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* Explicit colormap management seems to work only with OLVWM.
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*/
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void FOCUS_SetXFocus( HWND32 hwnd )
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{
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XWindowAttributes win_attr;
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Window win;
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/* Only mess with the X focus if there's */
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/* no desktop window and no window manager. */
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if ((rootWindow != DefaultRootWindow(display)) || Options.managed) return;
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if (!hwnd) /* If setting the focus to 0, uninstall the colormap */
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{
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if (COLOR_GetSystemPaletteFlags() & COLOR_PRIVATE)
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TSXUninstallColormap( display, COLOR_GetColormap() );
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return;
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}
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/* Set X focus and install colormap */
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if (!(win = WIN_GetXWindow( hwnd ))) return;
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if (!TSXGetWindowAttributes( display, win, &win_attr ) ||
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(win_attr.map_state != IsViewable))
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return; /* If window is not viewable, don't change anything */
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TSXSetInputFocus( display, win, RevertToParent, CurrentTime );
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if (COLOR_GetSystemPaletteFlags() & COLOR_PRIVATE)
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TSXInstallColormap( display, COLOR_GetColormap() );
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EVENT_Synchronize();
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}
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/*****************************************************************
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* FOCUS_SwitchFocus
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*/
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void FOCUS_SwitchFocus( HWND32 hFocusFrom, HWND32 hFocusTo )
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{
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hwndFocus = hFocusTo;
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#if 0
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if (hFocusFrom) SendMessage32A( hFocusFrom, WM_KILLFOCUS, hFocusTo, 0 );
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#else
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/* FIXME: must be SendMessage16() because 32A doesn't do
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* intertask at this time */
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if (hFocusFrom) SendMessage16( hFocusFrom, WM_KILLFOCUS, hFocusTo, 0 );
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#endif
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if( !hFocusTo || hFocusTo != hwndFocus )
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return;
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/* According to API docs, the WM_SETFOCUS message is sent AFTER the window
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has received the keyboard focus. */
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FOCUS_SetXFocus( hFocusTo );
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#if 0
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SendMessage32A( hFocusTo, WM_SETFOCUS, hFocusFrom, 0 );
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#else
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SendMessage16( hFocusTo, WM_SETFOCUS, hFocusFrom, 0 );
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#endif
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}
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/*****************************************************************
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* SetFocus16 (USER.22)
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*/
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HWND16 WINAPI SetFocus16( HWND16 hwnd )
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{
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return (HWND16)SetFocus32( hwnd );
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}
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/*****************************************************************
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* SetFocus32 (USER32.481)
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*/
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HWND32 WINAPI SetFocus32( HWND32 hwnd )
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{
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HWND32 hWndPrevFocus, hwndTop = hwnd;
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WND *wndPtr = WIN_FindWndPtr( hwnd );
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if (wndPtr)
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{
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/* Check if we can set the focus to this window */
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while ( (wndPtr->dwStyle & (WS_CHILD | WS_POPUP)) == WS_CHILD )
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{
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if ( wndPtr->dwStyle & ( WS_MINIMIZE | WS_DISABLED) )
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return 0;
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if (!(wndPtr = wndPtr->parent)) return 0;
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hwndTop = wndPtr->hwndSelf;
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}
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if( hwnd == hwndFocus ) return hwnd;
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/* call hooks */
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if( HOOK_CallHooks16( WH_CBT, HCBT_SETFOCUS, (WPARAM16)hwnd,
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(LPARAM)hwndFocus) )
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return 0;
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/* activate hwndTop if needed. */
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if (hwndTop != GetActiveWindow32())
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{
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if (!WINPOS_SetActiveWindow(hwndTop, 0, 0)) return 0;
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if (!IsWindow32( hwnd )) return 0; /* Abort if window destroyed */
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}
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}
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else if( HOOK_CallHooks16( WH_CBT, HCBT_SETFOCUS, 0, (LPARAM)hwndFocus ) )
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return 0;
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/* Change focus and send messages */
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hWndPrevFocus = hwndFocus;
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FOCUS_SwitchFocus( hwndFocus , hwnd );
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return hWndPrevFocus;
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}
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/*****************************************************************
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* GetFocus16 (USER.23)
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*/
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HWND16 WINAPI GetFocus16(void)
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{
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return (HWND16)hwndFocus;
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}
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/*****************************************************************
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* GetFocus32 (USER32.240)
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*/
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HWND32 WINAPI GetFocus32(void)
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{
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return hwndFocus;
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}
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