2852 lines
94 KiB
C
2852 lines
94 KiB
C
/*
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* Server-side window handling
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*
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* Copyright (C) 2001 Alexandre Julliard
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include "config.h"
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#include "wine/port.h"
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#include <assert.h>
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#include <stdarg.h>
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#include "ntstatus.h"
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#define WIN32_NO_STATUS
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#include "windef.h"
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#include "winbase.h"
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#include "wingdi.h"
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#include "winuser.h"
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#include "winternl.h"
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#include "object.h"
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#include "request.h"
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#include "thread.h"
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#include "process.h"
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#include "user.h"
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#include "unicode.h"
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/* a window property */
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struct property
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{
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unsigned short type; /* property type (see below) */
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atom_t atom; /* property atom */
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lparam_t data; /* property data (user-defined storage) */
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};
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enum property_type
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{
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PROP_TYPE_FREE, /* free entry */
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PROP_TYPE_STRING, /* atom that was originally a string */
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PROP_TYPE_ATOM /* plain atom */
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};
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struct window
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{
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struct window *parent; /* parent window */
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user_handle_t owner; /* owner of this window */
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struct list children; /* list of children in Z-order */
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struct list unlinked; /* list of children not linked in the Z-order list */
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struct list entry; /* entry in parent's children list */
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user_handle_t handle; /* full handle for this window */
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struct thread *thread; /* thread owning the window */
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struct desktop *desktop; /* desktop that the window belongs to */
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struct window_class *class; /* window class */
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atom_t atom; /* class atom */
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user_handle_t last_active; /* last active popup */
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rectangle_t window_rect; /* window rectangle (relative to parent client area) */
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rectangle_t visible_rect; /* visible part of window rect (relative to parent client area) */
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rectangle_t client_rect; /* client rectangle (relative to parent client area) */
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struct region *win_region; /* region for shaped windows (relative to window rect) */
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struct region *update_region; /* update region (relative to window rect) */
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unsigned int style; /* window style */
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unsigned int ex_style; /* window extended style */
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unsigned int id; /* window id */
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mod_handle_t instance; /* creator instance */
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unsigned int is_unicode : 1; /* ANSI or unicode */
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unsigned int is_linked : 1; /* is it linked into the parent z-order list? */
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unsigned int is_layered : 1; /* has layered info been set? */
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unsigned int color_key; /* color key for a layered window */
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unsigned int alpha; /* alpha value for a layered window */
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unsigned int layered_flags; /* flags for a layered window */
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DPI_AWARENESS dpi_awareness; /* DPI awareness mode */
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lparam_t user_data; /* user-specific data */
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WCHAR *text; /* window caption text */
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unsigned int paint_flags; /* various painting flags */
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int prop_inuse; /* number of in-use window properties */
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int prop_alloc; /* number of allocated window properties */
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struct property *properties; /* window properties array */
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int nb_extra_bytes; /* number of extra bytes */
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char extra_bytes[1]; /* extra bytes storage */
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};
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/* flags that can be set by the client */
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#define PAINT_HAS_SURFACE SET_WINPOS_PAINT_SURFACE
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#define PAINT_HAS_PIXEL_FORMAT SET_WINPOS_PIXEL_FORMAT
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#define PAINT_CLIENT_FLAGS (PAINT_HAS_SURFACE | PAINT_HAS_PIXEL_FORMAT)
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/* flags only manipulated by the server */
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#define PAINT_INTERNAL 0x0010 /* internal WM_PAINT pending */
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#define PAINT_ERASE 0x0020 /* needs WM_ERASEBKGND */
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#define PAINT_NONCLIENT 0x0040 /* needs WM_NCPAINT */
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#define PAINT_DELAYED_ERASE 0x0080 /* still needs erase after WM_ERASEBKGND */
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#define PAINT_PIXEL_FORMAT_CHILD 0x0100 /* at least one child has a custom pixel format */
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/* growable array of user handles */
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struct user_handle_array
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{
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user_handle_t *handles;
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int count;
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int total;
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};
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/* global window pointers */
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static struct window *shell_window;
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static struct window *shell_listview;
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static struct window *progman_window;
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static struct window *taskman_window;
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/* magic HWND_TOP etc. pointers */
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#define WINPTR_TOP ((struct window *)1L)
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#define WINPTR_BOTTOM ((struct window *)2L)
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#define WINPTR_TOPMOST ((struct window *)3L)
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#define WINPTR_NOTOPMOST ((struct window *)4L)
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/* retrieve a pointer to a window from its handle */
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static inline struct window *get_window( user_handle_t handle )
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{
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struct window *ret = get_user_object( handle, USER_WINDOW );
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if (!ret) set_win32_error( ERROR_INVALID_WINDOW_HANDLE );
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return ret;
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}
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/* check if window is the desktop */
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static inline int is_desktop_window( const struct window *win )
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{
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return !win->parent; /* only desktop windows have no parent */
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}
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/* get next window in Z-order list */
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static inline struct window *get_next_window( struct window *win )
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{
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struct list *ptr = list_next( &win->parent->children, &win->entry );
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return ptr ? LIST_ENTRY( ptr, struct window, entry ) : NULL;
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}
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/* get previous window in Z-order list */
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static inline struct window *get_prev_window( struct window *win )
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{
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struct list *ptr = list_prev( &win->parent->children, &win->entry );
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return ptr ? LIST_ENTRY( ptr, struct window, entry ) : NULL;
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}
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/* get first child in Z-order list */
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static inline struct window *get_first_child( struct window *win )
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{
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struct list *ptr = list_head( &win->children );
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return ptr ? LIST_ENTRY( ptr, struct window, entry ) : NULL;
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}
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/* get last child in Z-order list */
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static inline struct window *get_last_child( struct window *win )
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{
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struct list *ptr = list_tail( &win->children );
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return ptr ? LIST_ENTRY( ptr, struct window, entry ) : NULL;
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}
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/* set the PAINT_PIXEL_FORMAT_CHILD flag on all the parents */
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/* note: we never reset the flag, it's just a heuristic */
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static inline void update_pixel_format_flags( struct window *win )
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{
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for (win = win->parent; win && win->parent; win = win->parent)
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win->paint_flags |= PAINT_PIXEL_FORMAT_CHILD;
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}
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/* link a window at the right place in the siblings list */
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static void link_window( struct window *win, struct window *previous )
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{
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if (previous == WINPTR_NOTOPMOST)
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{
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if (!(win->ex_style & WS_EX_TOPMOST) && win->is_linked) return; /* nothing to do */
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win->ex_style &= ~WS_EX_TOPMOST;
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previous = WINPTR_TOP; /* fallback to the HWND_TOP case */
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}
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list_remove( &win->entry ); /* unlink it from the previous location */
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if (previous == WINPTR_BOTTOM)
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{
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list_add_tail( &win->parent->children, &win->entry );
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win->ex_style &= ~WS_EX_TOPMOST;
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}
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else if (previous == WINPTR_TOPMOST)
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{
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list_add_head( &win->parent->children, &win->entry );
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win->ex_style |= WS_EX_TOPMOST;
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}
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else if (previous == WINPTR_TOP)
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{
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struct list *entry = win->parent->children.next;
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if (!(win->ex_style & WS_EX_TOPMOST)) /* put it above the first non-topmost window */
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{
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while (entry != &win->parent->children)
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{
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struct window *next = LIST_ENTRY( entry, struct window, entry );
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if (!(next->ex_style & WS_EX_TOPMOST)) break;
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if (next->handle == win->owner) /* keep it above owner */
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{
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win->ex_style |= WS_EX_TOPMOST;
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break;
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}
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entry = entry->next;
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}
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}
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list_add_before( entry, &win->entry );
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}
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else
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{
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list_add_after( &previous->entry, &win->entry );
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if (!(previous->ex_style & WS_EX_TOPMOST)) win->ex_style &= ~WS_EX_TOPMOST;
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else
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{
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struct window *next = get_next_window( win );
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if (next && (next->ex_style & WS_EX_TOPMOST)) win->ex_style |= WS_EX_TOPMOST;
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}
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}
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win->is_linked = 1;
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}
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/* change the parent of a window (or unlink the window if the new parent is NULL) */
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static int set_parent_window( struct window *win, struct window *parent )
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{
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struct window *ptr;
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/* make sure parent is not a child of window */
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for (ptr = parent; ptr; ptr = ptr->parent)
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{
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if (ptr == win)
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{
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set_error( STATUS_INVALID_PARAMETER );
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return 0;
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}
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}
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if (parent)
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{
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win->parent = parent;
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link_window( win, WINPTR_TOP );
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if (!is_desktop_window( parent )) win->dpi_awareness = parent->dpi_awareness;
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/* if parent belongs to a different thread and the window isn't */
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/* top-level, attach the two threads */
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if (parent->thread && parent->thread != win->thread && !is_desktop_window(parent))
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attach_thread_input( win->thread, parent->thread );
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if (win->paint_flags & (PAINT_HAS_PIXEL_FORMAT | PAINT_PIXEL_FORMAT_CHILD))
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update_pixel_format_flags( win );
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}
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else /* move it to parent unlinked list */
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{
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list_remove( &win->entry ); /* unlink it from the previous location */
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list_add_head( &win->parent->unlinked, &win->entry );
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win->is_linked = 0;
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}
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return 1;
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}
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/* append a user handle to a handle array */
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static int add_handle_to_array( struct user_handle_array *array, user_handle_t handle )
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{
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if (array->count >= array->total)
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{
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int new_total = max( array->total * 2, 32 );
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user_handle_t *new_array = realloc( array->handles, new_total * sizeof(*new_array) );
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if (!new_array)
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{
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free( array->handles );
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set_error( STATUS_NO_MEMORY );
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return 0;
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}
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array->handles = new_array;
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array->total = new_total;
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}
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array->handles[array->count++] = handle;
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return 1;
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}
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/* set a window property */
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static void set_property( struct window *win, atom_t atom, lparam_t data, enum property_type type )
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{
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int i, free = -1;
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struct property *new_props;
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/* check if it exists already */
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for (i = 0; i < win->prop_inuse; i++)
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{
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if (win->properties[i].type == PROP_TYPE_FREE)
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{
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free = i;
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continue;
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}
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if (win->properties[i].atom == atom)
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{
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win->properties[i].type = type;
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win->properties[i].data = data;
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return;
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}
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}
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/* need to add an entry */
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if (!grab_global_atom( NULL, atom )) return;
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if (free == -1)
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{
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/* no free entry */
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if (win->prop_inuse >= win->prop_alloc)
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{
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/* need to grow the array */
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if (!(new_props = realloc( win->properties,
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sizeof(*new_props) * (win->prop_alloc + 16) )))
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{
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set_error( STATUS_NO_MEMORY );
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release_global_atom( NULL, atom );
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return;
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}
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win->prop_alloc += 16;
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win->properties = new_props;
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}
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free = win->prop_inuse++;
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}
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win->properties[free].atom = atom;
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win->properties[free].type = type;
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win->properties[free].data = data;
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}
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/* remove a window property */
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static lparam_t remove_property( struct window *win, atom_t atom )
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{
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int i;
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for (i = 0; i < win->prop_inuse; i++)
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{
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if (win->properties[i].type == PROP_TYPE_FREE) continue;
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if (win->properties[i].atom == atom)
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{
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release_global_atom( NULL, atom );
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win->properties[i].type = PROP_TYPE_FREE;
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return win->properties[i].data;
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}
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}
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/* FIXME: last error? */
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return 0;
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}
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/* find a window property */
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static lparam_t get_property( struct window *win, atom_t atom )
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{
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int i;
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for (i = 0; i < win->prop_inuse; i++)
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{
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if (win->properties[i].type == PROP_TYPE_FREE) continue;
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if (win->properties[i].atom == atom) return win->properties[i].data;
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}
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/* FIXME: last error? */
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return 0;
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}
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/* destroy all properties of a window */
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static inline void destroy_properties( struct window *win )
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{
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int i;
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if (!win->properties) return;
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for (i = 0; i < win->prop_inuse; i++)
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{
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if (win->properties[i].type == PROP_TYPE_FREE) continue;
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release_global_atom( NULL, win->properties[i].atom );
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}
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free( win->properties );
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}
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/* detach a window from its owner thread but keep the window around */
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static void detach_window_thread( struct window *win )
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{
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struct thread *thread = win->thread;
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if (!thread) return;
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if (thread->queue)
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{
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if (win->update_region) inc_queue_paint_count( thread, -1 );
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if (win->paint_flags & PAINT_INTERNAL) inc_queue_paint_count( thread, -1 );
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queue_cleanup_window( thread, win->handle );
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}
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assert( thread->desktop_users > 0 );
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thread->desktop_users--;
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release_class( win->class );
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win->class = NULL;
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/* don't hold a reference to the desktop so that the desktop window can be */
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/* destroyed when the desktop ref count reaches zero */
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release_object( win->desktop );
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win->thread = NULL;
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}
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/* get the process owning the top window of a given desktop */
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struct process *get_top_window_owner( struct desktop *desktop )
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{
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struct window *win = desktop->top_window;
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if (!win || !win->thread) return NULL;
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return win->thread->process;
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}
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/* get the top window size of a given desktop */
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void get_top_window_rectangle( struct desktop *desktop, rectangle_t *rect )
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{
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struct window *win = desktop->top_window;
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if (!win) rect->left = rect->top = rect->right = rect->bottom = 0;
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else *rect = win->window_rect;
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}
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/* post a message to the desktop window */
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void post_desktop_message( struct desktop *desktop, unsigned int message,
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lparam_t wparam, lparam_t lparam )
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{
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struct window *win = desktop->top_window;
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if (win && win->thread) post_message( win->handle, message, wparam, lparam );
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}
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/* create a new window structure (note: the window is not linked in the window tree) */
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static struct window *create_window( struct window *parent, struct window *owner,
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atom_t atom, mod_handle_t instance, DPI_AWARENESS dpi_awareness )
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{
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static const rectangle_t empty_rect;
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int extra_bytes;
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struct window *win = NULL;
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struct desktop *desktop;
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struct window_class *class;
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|
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if (!(desktop = get_thread_desktop( current, DESKTOP_CREATEWINDOW ))) return NULL;
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if (!(class = grab_class( current->process, atom, instance, &extra_bytes )))
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{
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release_object( desktop );
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return NULL;
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}
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|
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if (!parent) /* null parent is only allowed for desktop or HWND_MESSAGE top window */
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{
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if (is_desktop_class( class ))
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parent = desktop->top_window; /* use existing desktop if any */
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else if (is_hwnd_message_class( class ))
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/* use desktop window if message window is already created */
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parent = desktop->msg_window ? desktop->top_window : NULL;
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else if (!(parent = desktop->top_window)) /* must already have a desktop then */
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{
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set_error( STATUS_ACCESS_DENIED );
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goto failed;
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}
|
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}
|
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|
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/* parent must be on the same desktop */
|
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if (parent && parent->desktop != desktop)
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{
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set_error( STATUS_ACCESS_DENIED );
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goto failed;
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}
|
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|
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if (parent && !is_desktop_window( parent )) dpi_awareness = parent->dpi_awareness;
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|
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if (!(win = mem_alloc( sizeof(*win) + extra_bytes - 1 ))) goto failed;
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if (!(win->handle = alloc_user_handle( win, USER_WINDOW ))) goto failed;
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|
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win->parent = parent;
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win->owner = owner ? owner->handle : 0;
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win->thread = current;
|
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win->desktop = desktop;
|
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win->class = class;
|
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win->atom = atom;
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win->last_active = win->handle;
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win->win_region = NULL;
|
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win->update_region = NULL;
|
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win->style = 0;
|
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win->ex_style = 0;
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win->id = 0;
|
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win->instance = 0;
|
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win->is_unicode = 1;
|
|
win->is_linked = 0;
|
|
win->is_layered = 0;
|
|
win->dpi_awareness = dpi_awareness;
|
|
win->user_data = 0;
|
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win->text = NULL;
|
|
win->paint_flags = 0;
|
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win->prop_inuse = 0;
|
|
win->prop_alloc = 0;
|
|
win->properties = NULL;
|
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win->nb_extra_bytes = extra_bytes;
|
|
win->window_rect = win->visible_rect = win->client_rect = empty_rect;
|
|
memset( win->extra_bytes, 0, extra_bytes );
|
|
list_init( &win->children );
|
|
list_init( &win->unlinked );
|
|
|
|
/* if parent belongs to a different thread and the window isn't */
|
|
/* top-level, attach the two threads */
|
|
if (parent && parent->thread && parent->thread != current && !is_desktop_window(parent))
|
|
{
|
|
if (!attach_thread_input( current, parent->thread )) goto failed;
|
|
}
|
|
else /* otherwise just make sure that the thread has a message queue */
|
|
{
|
|
if (!current->queue && !init_thread_queue( current )) goto failed;
|
|
}
|
|
|
|
/* put it on parent unlinked list */
|
|
if (parent) list_add_head( &parent->unlinked, &win->entry );
|
|
else
|
|
{
|
|
list_init( &win->entry );
|
|
if (is_desktop_class( class ))
|
|
{
|
|
assert( !desktop->top_window );
|
|
desktop->top_window = win;
|
|
set_process_default_desktop( current->process, desktop, current->desktop );
|
|
}
|
|
else
|
|
{
|
|
assert( !desktop->msg_window );
|
|
desktop->msg_window = win;
|
|
}
|
|
}
|
|
|
|
current->desktop_users++;
|
|
return win;
|
|
|
|
failed:
|
|
if (win)
|
|
{
|
|
if (win->handle) free_user_handle( win->handle );
|
|
free( win );
|
|
}
|
|
release_object( desktop );
|
|
release_class( class );
|
|
return NULL;
|
|
}
|
|
|
|
/* destroy all windows belonging to a given thread */
|
|
void destroy_thread_windows( struct thread *thread )
|
|
{
|
|
user_handle_t handle = 0;
|
|
struct window *win;
|
|
|
|
while ((win = next_user_handle( &handle, USER_WINDOW )))
|
|
{
|
|
if (win->thread != thread) continue;
|
|
if (is_desktop_window( win )) detach_window_thread( win );
|
|
else destroy_window( win );
|
|
}
|
|
}
|
|
|
|
/* get the desktop window */
|
|
static struct window *get_desktop_window( struct thread *thread )
|
|
{
|
|
struct window *top_window;
|
|
struct desktop *desktop = get_thread_desktop( thread, 0 );
|
|
|
|
if (!desktop) return NULL;
|
|
top_window = desktop->top_window;
|
|
release_object( desktop );
|
|
return top_window;
|
|
}
|
|
|
|
/* check whether child is a descendant of parent */
|
|
int is_child_window( user_handle_t parent, user_handle_t child )
|
|
{
|
|
struct window *child_ptr = get_user_object( child, USER_WINDOW );
|
|
struct window *parent_ptr = get_user_object( parent, USER_WINDOW );
|
|
|
|
if (!child_ptr || !parent_ptr) return 0;
|
|
while (child_ptr->parent)
|
|
{
|
|
if (child_ptr->parent == parent_ptr) return 1;
|
|
child_ptr = child_ptr->parent;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* check if window can be set as foreground window */
|
|
int is_valid_foreground_window( user_handle_t window )
|
|
{
|
|
struct window *win = get_user_object( window, USER_WINDOW );
|
|
return win && (win->style & (WS_POPUP|WS_CHILD)) != WS_CHILD;
|
|
}
|
|
|
|
/* make a window active if possible */
|
|
int make_window_active( user_handle_t window )
|
|
{
|
|
struct window *owner, *win = get_window( window );
|
|
|
|
if (!win) return 0;
|
|
|
|
/* set last active for window and its owners */
|
|
owner = win;
|
|
while (owner)
|
|
{
|
|
owner->last_active = win->handle;
|
|
owner = get_user_object( owner->owner, USER_WINDOW );
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
/* increment (or decrement) the window paint count */
|
|
static inline void inc_window_paint_count( struct window *win, int incr )
|
|
{
|
|
if (win->thread) inc_queue_paint_count( win->thread, incr );
|
|
}
|
|
|
|
/* check if window and all its ancestors are visible */
|
|
static int is_visible( const struct window *win )
|
|
{
|
|
while (win)
|
|
{
|
|
if (!(win->style & WS_VISIBLE)) return 0;
|
|
win = win->parent;
|
|
/* if parent is minimized children are not visible */
|
|
if (win && (win->style & WS_MINIMIZE)) return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
/* same as is_visible but takes a window handle */
|
|
int is_window_visible( user_handle_t window )
|
|
{
|
|
struct window *win = get_user_object( window, USER_WINDOW );
|
|
if (!win) return 0;
|
|
return is_visible( win );
|
|
}
|
|
|
|
int is_window_transparent( user_handle_t window )
|
|
{
|
|
struct window *win = get_user_object( window, USER_WINDOW );
|
|
if (!win) return 0;
|
|
return (win->ex_style & (WS_EX_LAYERED|WS_EX_TRANSPARENT)) == (WS_EX_LAYERED|WS_EX_TRANSPARENT);
|
|
}
|
|
|
|
/* check if point is inside the window */
|
|
static inline int is_point_in_window( struct window *win, int x, int y )
|
|
{
|
|
if (!(win->style & WS_VISIBLE)) return 0; /* not visible */
|
|
if ((win->style & (WS_POPUP|WS_CHILD|WS_DISABLED)) == (WS_CHILD|WS_DISABLED))
|
|
return 0; /* disabled child */
|
|
if ((win->ex_style & (WS_EX_LAYERED|WS_EX_TRANSPARENT)) == (WS_EX_LAYERED|WS_EX_TRANSPARENT))
|
|
return 0; /* transparent */
|
|
if (x < win->visible_rect.left || x >= win->visible_rect.right ||
|
|
y < win->visible_rect.top || y >= win->visible_rect.bottom)
|
|
return 0; /* not in window */
|
|
if (win->win_region &&
|
|
!point_in_region( win->win_region, x - win->window_rect.left, y - win->window_rect.top ))
|
|
return 0; /* not in window region */
|
|
return 1;
|
|
}
|
|
|
|
/* fill an array with the handles of the children of a specified window */
|
|
static unsigned int get_children_windows( struct window *parent, atom_t atom, thread_id_t tid,
|
|
user_handle_t *handles, unsigned int max_count )
|
|
{
|
|
struct window *ptr;
|
|
unsigned int count = 0;
|
|
|
|
if (!parent) return 0;
|
|
|
|
LIST_FOR_EACH_ENTRY( ptr, &parent->children, struct window, entry )
|
|
{
|
|
if (atom && get_class_atom(ptr->class) != atom) continue;
|
|
if (tid && get_thread_id(ptr->thread) != tid) continue;
|
|
if (handles)
|
|
{
|
|
if (count >= max_count) break;
|
|
handles[count] = ptr->handle;
|
|
}
|
|
count++;
|
|
}
|
|
return count;
|
|
}
|
|
|
|
/* find child of 'parent' that contains the given point (in parent-relative coords) */
|
|
static struct window *child_window_from_point( struct window *parent, int x, int y )
|
|
{
|
|
struct window *ptr;
|
|
|
|
LIST_FOR_EACH_ENTRY( ptr, &parent->children, struct window, entry )
|
|
{
|
|
if (!is_point_in_window( ptr, x, y )) continue; /* skip it */
|
|
|
|
/* if window is minimized or disabled, return at once */
|
|
if (ptr->style & (WS_MINIMIZE|WS_DISABLED)) return ptr;
|
|
|
|
/* if point is not in client area, return at once */
|
|
if (x < ptr->client_rect.left || x >= ptr->client_rect.right ||
|
|
y < ptr->client_rect.top || y >= ptr->client_rect.bottom)
|
|
return ptr;
|
|
|
|
return child_window_from_point( ptr, x - ptr->client_rect.left, y - ptr->client_rect.top );
|
|
}
|
|
return parent; /* not found any child */
|
|
}
|
|
|
|
/* find all children of 'parent' that contain the given point */
|
|
static int get_window_children_from_point( struct window *parent, int x, int y,
|
|
struct user_handle_array *array )
|
|
{
|
|
struct window *ptr;
|
|
|
|
LIST_FOR_EACH_ENTRY( ptr, &parent->children, struct window, entry )
|
|
{
|
|
if (!is_point_in_window( ptr, x, y )) continue; /* skip it */
|
|
|
|
/* if point is in client area, and window is not minimized or disabled, check children */
|
|
if (!(ptr->style & (WS_MINIMIZE|WS_DISABLED)) &&
|
|
x >= ptr->client_rect.left && x < ptr->client_rect.right &&
|
|
y >= ptr->client_rect.top && y < ptr->client_rect.bottom)
|
|
{
|
|
if (!get_window_children_from_point( ptr, x - ptr->client_rect.left,
|
|
y - ptr->client_rect.top, array ))
|
|
return 0;
|
|
}
|
|
|
|
/* now add window to the array */
|
|
if (!add_handle_to_array( array, ptr->handle )) return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
/* get handle of root of top-most window containing point */
|
|
user_handle_t shallow_window_from_point( struct desktop *desktop, int x, int y )
|
|
{
|
|
struct window *ptr;
|
|
|
|
if (!desktop->top_window) return 0;
|
|
|
|
LIST_FOR_EACH_ENTRY( ptr, &desktop->top_window->children, struct window, entry )
|
|
{
|
|
if (!is_point_in_window( ptr, x, y )) continue; /* skip it */
|
|
return ptr->handle;
|
|
}
|
|
return desktop->top_window->handle;
|
|
}
|
|
|
|
/* return thread of top-most window containing point (in absolute coords) */
|
|
struct thread *window_thread_from_point( user_handle_t scope, int x, int y )
|
|
{
|
|
struct window *win = get_user_object( scope, USER_WINDOW );
|
|
struct window *ptr;
|
|
|
|
if (!win) return NULL;
|
|
|
|
for (ptr = win; ptr && !is_desktop_window(ptr); ptr = ptr->parent)
|
|
{
|
|
x -= ptr->client_rect.left;
|
|
y -= ptr->client_rect.top;
|
|
}
|
|
|
|
ptr = child_window_from_point( win, x, y );
|
|
if (!ptr->thread) return NULL;
|
|
return (struct thread *)grab_object( ptr->thread );
|
|
}
|
|
|
|
/* return list of all windows containing point (in absolute coords) */
|
|
static int all_windows_from_point( struct window *top, int x, int y, struct user_handle_array *array )
|
|
{
|
|
struct window *ptr;
|
|
|
|
/* make point relative to top window */
|
|
for (ptr = top->parent; ptr && !is_desktop_window(ptr); ptr = ptr->parent)
|
|
{
|
|
x -= ptr->client_rect.left;
|
|
y -= ptr->client_rect.top;
|
|
}
|
|
|
|
if (!is_point_in_window( top, x, y )) return 1;
|
|
|
|
/* if point is in client area, and window is not minimized or disabled, check children */
|
|
if (!(top->style & (WS_MINIMIZE|WS_DISABLED)) &&
|
|
x >= top->client_rect.left && x < top->client_rect.right &&
|
|
y >= top->client_rect.top && y < top->client_rect.bottom)
|
|
{
|
|
if (!is_desktop_window(top))
|
|
{
|
|
x -= top->client_rect.left;
|
|
y -= top->client_rect.top;
|
|
}
|
|
if (!get_window_children_from_point( top, x, y, array )) return 0;
|
|
}
|
|
/* now add window to the array */
|
|
if (!add_handle_to_array( array, top->handle )) return 0;
|
|
return 1;
|
|
}
|
|
|
|
|
|
/* return the thread owning a window */
|
|
struct thread *get_window_thread( user_handle_t handle )
|
|
{
|
|
struct window *win = get_user_object( handle, USER_WINDOW );
|
|
if (!win || !win->thread) return NULL;
|
|
return (struct thread *)grab_object( win->thread );
|
|
}
|
|
|
|
|
|
/* check if any area of a window needs repainting */
|
|
static inline int win_needs_repaint( struct window *win )
|
|
{
|
|
return win->update_region || (win->paint_flags & PAINT_INTERNAL);
|
|
}
|
|
|
|
|
|
/* find a child of the specified window that needs repainting */
|
|
static struct window *find_child_to_repaint( struct window *parent, struct thread *thread )
|
|
{
|
|
struct window *ptr, *ret = NULL;
|
|
|
|
LIST_FOR_EACH_ENTRY( ptr, &parent->children, struct window, entry )
|
|
{
|
|
if (!(ptr->style & WS_VISIBLE)) continue;
|
|
if (ptr->thread == thread && win_needs_repaint( ptr ))
|
|
ret = ptr;
|
|
else if (!(ptr->style & WS_MINIMIZE)) /* explore its children */
|
|
ret = find_child_to_repaint( ptr, thread );
|
|
if (ret) break;
|
|
}
|
|
|
|
if (ret && (ret->ex_style & WS_EX_TRANSPARENT))
|
|
{
|
|
/* transparent window, check for non-transparent sibling to paint first */
|
|
for (ptr = get_next_window(ret); ptr; ptr = get_next_window(ptr))
|
|
{
|
|
if (!(ptr->style & WS_VISIBLE)) continue;
|
|
if (ptr->ex_style & WS_EX_TRANSPARENT) continue;
|
|
if (ptr->thread != thread) continue;
|
|
if (win_needs_repaint( ptr )) return ptr;
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
|
|
/* find a window that needs to receive a WM_PAINT; also clear its internal paint flag */
|
|
user_handle_t find_window_to_repaint( user_handle_t parent, struct thread *thread )
|
|
{
|
|
struct window *ptr, *win, *top_window = get_desktop_window( thread );
|
|
|
|
if (!top_window) return 0;
|
|
|
|
if (top_window->thread == thread && win_needs_repaint( top_window )) win = top_window;
|
|
else win = find_child_to_repaint( top_window, thread );
|
|
|
|
if (win && parent)
|
|
{
|
|
/* check that it is a child of the specified parent */
|
|
for (ptr = win; ptr; ptr = ptr->parent)
|
|
if (ptr->handle == parent) break;
|
|
/* otherwise don't return any window, we don't repaint a child before its parent */
|
|
if (!ptr) win = NULL;
|
|
}
|
|
if (!win) return 0;
|
|
win->paint_flags &= ~PAINT_INTERNAL;
|
|
return win->handle;
|
|
}
|
|
|
|
|
|
/* intersect the window region with the specified region, relative to the window parent */
|
|
static struct region *intersect_window_region( struct region *region, struct window *win )
|
|
{
|
|
/* make region relative to window rect */
|
|
offset_region( region, -win->window_rect.left, -win->window_rect.top );
|
|
if (!intersect_region( region, region, win->win_region )) return NULL;
|
|
/* make region relative to parent again */
|
|
offset_region( region, win->window_rect.left, win->window_rect.top );
|
|
return region;
|
|
}
|
|
|
|
|
|
/* convert coordinates from client to screen coords */
|
|
static inline void client_to_screen( struct window *win, int *x, int *y )
|
|
{
|
|
for ( ; win && !is_desktop_window(win); win = win->parent)
|
|
{
|
|
*x += win->client_rect.left;
|
|
*y += win->client_rect.top;
|
|
}
|
|
}
|
|
|
|
/* convert coordinates from client to screen coords */
|
|
static inline void client_to_screen_rect( struct window *win, rectangle_t *rect )
|
|
{
|
|
for ( ; win && !is_desktop_window(win); win = win->parent)
|
|
{
|
|
rect->left += win->client_rect.left;
|
|
rect->right += win->client_rect.left;
|
|
rect->top += win->client_rect.top;
|
|
rect->bottom += win->client_rect.top;
|
|
}
|
|
}
|
|
|
|
/* map the region from window to screen coordinates */
|
|
static inline void map_win_region_to_screen( struct window *win, struct region *region )
|
|
{
|
|
if (!is_desktop_window(win))
|
|
{
|
|
int x = win->window_rect.left;
|
|
int y = win->window_rect.top;
|
|
client_to_screen( win->parent, &x, &y );
|
|
offset_region( region, x, y );
|
|
}
|
|
}
|
|
|
|
|
|
/* clip all children of a given window out of the visible region */
|
|
static struct region *clip_children( struct window *parent, struct window *last,
|
|
struct region *region, int offset_x, int offset_y )
|
|
{
|
|
struct window *ptr;
|
|
struct region *tmp = create_empty_region();
|
|
|
|
if (!tmp) return NULL;
|
|
LIST_FOR_EACH_ENTRY( ptr, &parent->children, struct window, entry )
|
|
{
|
|
if (ptr == last) break;
|
|
if (!(ptr->style & WS_VISIBLE)) continue;
|
|
if (ptr->ex_style & WS_EX_TRANSPARENT) continue;
|
|
set_region_rect( tmp, &ptr->visible_rect );
|
|
if (ptr->win_region && !intersect_window_region( tmp, ptr ))
|
|
{
|
|
free_region( tmp );
|
|
return NULL;
|
|
}
|
|
offset_region( tmp, offset_x, offset_y );
|
|
if (!(region = subtract_region( region, region, tmp ))) break;
|
|
if (is_region_empty( region )) break;
|
|
}
|
|
free_region( tmp );
|
|
return region;
|
|
}
|
|
|
|
|
|
/* offset the coordinates of a rectangle */
|
|
static inline void offset_rect( rectangle_t *rect, int offset_x, int offset_y )
|
|
{
|
|
rect->left += offset_x;
|
|
rect->top += offset_y;
|
|
rect->right += offset_x;
|
|
rect->bottom += offset_y;
|
|
}
|
|
|
|
|
|
/* set the region to the client rect clipped by the window rect, in parent-relative coordinates */
|
|
static void set_region_client_rect( struct region *region, struct window *win )
|
|
{
|
|
rectangle_t rect;
|
|
|
|
intersect_rect( &rect, &win->window_rect, &win->client_rect );
|
|
set_region_rect( region, &rect );
|
|
}
|
|
|
|
|
|
/* get the top-level window to clip against for a given window */
|
|
static inline struct window *get_top_clipping_window( struct window *win )
|
|
{
|
|
while (!(win->paint_flags & PAINT_HAS_SURFACE) && win->parent && !is_desktop_window(win->parent))
|
|
win = win->parent;
|
|
return win;
|
|
}
|
|
|
|
|
|
/* compute the visible region of a window, in window coordinates */
|
|
static struct region *get_visible_region( struct window *win, unsigned int flags )
|
|
{
|
|
struct region *tmp = NULL, *region;
|
|
int offset_x, offset_y;
|
|
|
|
if (!(region = create_empty_region())) return NULL;
|
|
|
|
/* first check if all ancestors are visible */
|
|
|
|
if (!is_visible( win )) return region; /* empty region */
|
|
|
|
/* create a region relative to the window itself */
|
|
|
|
if ((flags & DCX_PARENTCLIP) && win->parent && !is_desktop_window(win->parent))
|
|
{
|
|
set_region_client_rect( region, win->parent );
|
|
offset_region( region, -win->parent->client_rect.left, -win->parent->client_rect.top );
|
|
}
|
|
else if (flags & DCX_WINDOW)
|
|
{
|
|
set_region_rect( region, &win->visible_rect );
|
|
if (win->win_region && !intersect_window_region( region, win )) goto error;
|
|
}
|
|
else
|
|
{
|
|
set_region_client_rect( region, win );
|
|
if (win->win_region && !intersect_window_region( region, win )) goto error;
|
|
}
|
|
|
|
/* clip children */
|
|
|
|
if (flags & DCX_CLIPCHILDREN)
|
|
{
|
|
if (is_desktop_window(win)) offset_x = offset_y = 0;
|
|
else
|
|
{
|
|
offset_x = win->client_rect.left;
|
|
offset_y = win->client_rect.top;
|
|
}
|
|
if (!clip_children( win, NULL, region, offset_x, offset_y )) goto error;
|
|
}
|
|
|
|
/* clip siblings of ancestors */
|
|
|
|
if (is_desktop_window(win)) offset_x = offset_y = 0;
|
|
else
|
|
{
|
|
offset_x = win->window_rect.left;
|
|
offset_y = win->window_rect.top;
|
|
}
|
|
|
|
if ((tmp = create_empty_region()) != NULL)
|
|
{
|
|
while (win->parent)
|
|
{
|
|
/* we don't clip out top-level siblings as that's up to the native windowing system */
|
|
if ((win->style & WS_CLIPSIBLINGS) && !is_desktop_window( win->parent ))
|
|
{
|
|
if (!clip_children( win->parent, win, region, 0, 0 )) goto error;
|
|
if (is_region_empty( region )) break;
|
|
}
|
|
/* clip to parent client area */
|
|
win = win->parent;
|
|
if (!is_desktop_window(win))
|
|
{
|
|
offset_x += win->client_rect.left;
|
|
offset_y += win->client_rect.top;
|
|
offset_region( region, win->client_rect.left, win->client_rect.top );
|
|
}
|
|
set_region_client_rect( tmp, win );
|
|
if (win->win_region && !intersect_window_region( tmp, win )) goto error;
|
|
if (!intersect_region( region, region, tmp )) goto error;
|
|
if (is_region_empty( region )) break;
|
|
}
|
|
free_region( tmp );
|
|
}
|
|
offset_region( region, -offset_x, -offset_y ); /* make it relative to target window */
|
|
return region;
|
|
|
|
error:
|
|
if (tmp) free_region( tmp );
|
|
free_region( region );
|
|
return NULL;
|
|
}
|
|
|
|
|
|
/* clip all children with a custom pixel format out of the visible region */
|
|
static struct region *clip_pixel_format_children( struct window *parent, struct region *parent_clip,
|
|
struct region *region, int offset_x, int offset_y )
|
|
{
|
|
struct window *ptr;
|
|
struct region *clip = create_empty_region();
|
|
|
|
if (!clip) return NULL;
|
|
|
|
LIST_FOR_EACH_ENTRY_REV( ptr, &parent->children, struct window, entry )
|
|
{
|
|
if (!(ptr->style & WS_VISIBLE)) continue;
|
|
if (ptr->ex_style & WS_EX_TRANSPARENT) continue;
|
|
|
|
/* add the visible rect */
|
|
set_region_rect( clip, &ptr->visible_rect );
|
|
if (ptr->win_region && !intersect_window_region( clip, ptr )) break;
|
|
offset_region( clip, offset_x, offset_y );
|
|
if (!intersect_region( clip, clip, parent_clip )) break;
|
|
if (!union_region( region, region, clip )) break;
|
|
if (!(ptr->paint_flags & (PAINT_HAS_PIXEL_FORMAT | PAINT_PIXEL_FORMAT_CHILD))) continue;
|
|
|
|
/* subtract the client rect if it uses a custom pixel format */
|
|
set_region_rect( clip, &ptr->client_rect );
|
|
if (ptr->win_region && !intersect_window_region( clip, ptr )) break;
|
|
offset_region( clip, offset_x, offset_y );
|
|
if (!intersect_region( clip, clip, parent_clip )) break;
|
|
if ((ptr->paint_flags & PAINT_HAS_PIXEL_FORMAT) && !subtract_region( region, region, clip ))
|
|
break;
|
|
|
|
if (!clip_pixel_format_children( ptr, clip, region, offset_x + ptr->client_rect.left,
|
|
offset_y + ptr->client_rect.top ))
|
|
break;
|
|
}
|
|
free_region( clip );
|
|
return region;
|
|
}
|
|
|
|
|
|
/* compute the visible surface region of a window, in parent coordinates */
|
|
static struct region *get_surface_region( struct window *win )
|
|
{
|
|
struct region *region, *clip;
|
|
int offset_x, offset_y;
|
|
|
|
/* create a region relative to the window itself */
|
|
|
|
if (!(region = create_empty_region())) return NULL;
|
|
if (!(clip = create_empty_region())) goto error;
|
|
set_region_rect( region, &win->visible_rect );
|
|
if (win->win_region && !intersect_window_region( region, win )) goto error;
|
|
set_region_rect( clip, &win->client_rect );
|
|
if (win->win_region && !intersect_window_region( clip, win )) goto error;
|
|
|
|
if ((win->paint_flags & PAINT_HAS_PIXEL_FORMAT) && !subtract_region( region, region, clip ))
|
|
goto error;
|
|
|
|
/* clip children */
|
|
|
|
if (!is_desktop_window(win))
|
|
{
|
|
offset_x = win->client_rect.left;
|
|
offset_y = win->client_rect.top;
|
|
}
|
|
else offset_x = offset_y = 0;
|
|
|
|
if (!clip_pixel_format_children( win, clip, region, offset_x, offset_y )) goto error;
|
|
|
|
free_region( clip );
|
|
return region;
|
|
|
|
error:
|
|
if (clip) free_region( clip );
|
|
free_region( region );
|
|
return NULL;
|
|
}
|
|
|
|
|
|
/* get the window class of a window */
|
|
struct window_class* get_window_class( user_handle_t window )
|
|
{
|
|
struct window *win;
|
|
if (!(win = get_window( window ))) return NULL;
|
|
if (!win->class) set_error( STATUS_ACCESS_DENIED );
|
|
return win->class;
|
|
}
|
|
|
|
/* determine the window visible rectangle, i.e. window or client rect cropped by parent rects */
|
|
/* the returned rectangle is in window coordinates; return 0 if rectangle is empty */
|
|
static int get_window_visible_rect( struct window *win, rectangle_t *rect, int frame )
|
|
{
|
|
int offset_x = 0, offset_y = 0;
|
|
|
|
if (!(win->style & WS_VISIBLE)) return 0;
|
|
|
|
*rect = frame ? win->window_rect : win->client_rect;
|
|
if (!is_desktop_window(win))
|
|
{
|
|
offset_x = win->window_rect.left;
|
|
offset_y = win->window_rect.top;
|
|
}
|
|
|
|
while (win->parent)
|
|
{
|
|
win = win->parent;
|
|
if (!(win->style & WS_VISIBLE) || win->style & WS_MINIMIZE) return 0;
|
|
if (!is_desktop_window(win))
|
|
{
|
|
offset_x += win->client_rect.left;
|
|
offset_y += win->client_rect.top;
|
|
offset_rect( rect, win->client_rect.left, win->client_rect.top );
|
|
}
|
|
if (!intersect_rect( rect, rect, &win->client_rect )) return 0;
|
|
if (!intersect_rect( rect, rect, &win->window_rect )) return 0;
|
|
}
|
|
offset_rect( rect, -offset_x, -offset_y );
|
|
return 1;
|
|
}
|
|
|
|
/* return a copy of the specified region cropped to the window client or frame rectangle, */
|
|
/* and converted from client to window coordinates. Helper for (in)validate_window. */
|
|
static struct region *crop_region_to_win_rect( struct window *win, struct region *region, int frame )
|
|
{
|
|
rectangle_t rect;
|
|
struct region *tmp;
|
|
|
|
if (!get_window_visible_rect( win, &rect, frame )) return NULL;
|
|
if (!(tmp = create_empty_region())) return NULL;
|
|
set_region_rect( tmp, &rect );
|
|
|
|
if (region)
|
|
{
|
|
/* map it to client coords */
|
|
offset_region( tmp, win->window_rect.left - win->client_rect.left,
|
|
win->window_rect.top - win->client_rect.top );
|
|
|
|
/* intersect specified region with bounding rect */
|
|
if (!intersect_region( tmp, region, tmp )) goto done;
|
|
if (is_region_empty( tmp )) goto done;
|
|
|
|
/* map it back to window coords */
|
|
offset_region( tmp, win->client_rect.left - win->window_rect.left,
|
|
win->client_rect.top - win->window_rect.top );
|
|
}
|
|
return tmp;
|
|
|
|
done:
|
|
free_region( tmp );
|
|
return NULL;
|
|
}
|
|
|
|
|
|
/* set a region as new update region for the window */
|
|
static void set_update_region( struct window *win, struct region *region )
|
|
{
|
|
if (region && !is_region_empty( region ))
|
|
{
|
|
if (!win->update_region) inc_window_paint_count( win, 1 );
|
|
else free_region( win->update_region );
|
|
win->update_region = region;
|
|
}
|
|
else
|
|
{
|
|
if (win->update_region)
|
|
{
|
|
inc_window_paint_count( win, -1 );
|
|
free_region( win->update_region );
|
|
}
|
|
win->paint_flags &= ~(PAINT_ERASE | PAINT_DELAYED_ERASE | PAINT_NONCLIENT);
|
|
win->update_region = NULL;
|
|
if (region) free_region( region );
|
|
}
|
|
}
|
|
|
|
|
|
/* add a region to the update region; the passed region is freed or reused */
|
|
static int add_update_region( struct window *win, struct region *region )
|
|
{
|
|
if (win->update_region && !union_region( region, win->update_region, region ))
|
|
{
|
|
free_region( region );
|
|
return 0;
|
|
}
|
|
set_update_region( win, region );
|
|
return 1;
|
|
}
|
|
|
|
|
|
/* crop the update region of children to the specified rectangle, in client coords */
|
|
static void crop_children_update_region( struct window *win, rectangle_t *rect )
|
|
{
|
|
struct window *child;
|
|
struct region *tmp;
|
|
rectangle_t child_rect;
|
|
|
|
LIST_FOR_EACH_ENTRY( child, &win->children, struct window, entry )
|
|
{
|
|
if (!(child->style & WS_VISIBLE)) continue;
|
|
if (!rect) /* crop everything out */
|
|
{
|
|
crop_children_update_region( child, NULL );
|
|
set_update_region( child, NULL );
|
|
continue;
|
|
}
|
|
|
|
/* nothing to do if child is completely inside rect */
|
|
if (child->window_rect.left >= rect->left &&
|
|
child->window_rect.top >= rect->top &&
|
|
child->window_rect.right <= rect->right &&
|
|
child->window_rect.bottom <= rect->bottom) continue;
|
|
|
|
/* map to child client coords and crop grand-children */
|
|
child_rect = *rect;
|
|
offset_rect( &child_rect, -child->client_rect.left, -child->client_rect.top );
|
|
crop_children_update_region( child, &child_rect );
|
|
|
|
/* now crop the child itself */
|
|
if (!child->update_region) continue;
|
|
if (!(tmp = create_empty_region())) continue;
|
|
set_region_rect( tmp, rect );
|
|
offset_region( tmp, -child->window_rect.left, -child->window_rect.top );
|
|
if (intersect_region( tmp, child->update_region, tmp )) set_update_region( child, tmp );
|
|
else free_region( tmp );
|
|
}
|
|
}
|
|
|
|
|
|
/* validate the non client area of a window */
|
|
static void validate_non_client( struct window *win )
|
|
{
|
|
struct region *tmp;
|
|
rectangle_t rect;
|
|
|
|
if (!win->update_region) return; /* nothing to do */
|
|
|
|
/* get client rect in window coords */
|
|
rect.left = win->client_rect.left - win->window_rect.left;
|
|
rect.top = win->client_rect.top - win->window_rect.top;
|
|
rect.right = win->client_rect.right - win->window_rect.left;
|
|
rect.bottom = win->client_rect.bottom - win->window_rect.top;
|
|
|
|
if ((tmp = create_empty_region()))
|
|
{
|
|
set_region_rect( tmp, &rect );
|
|
if (intersect_region( tmp, win->update_region, tmp ))
|
|
set_update_region( win, tmp );
|
|
else
|
|
free_region( tmp );
|
|
}
|
|
win->paint_flags &= ~PAINT_NONCLIENT;
|
|
}
|
|
|
|
|
|
/* validate a window completely so that we don't get any further paint messages for it */
|
|
static void validate_whole_window( struct window *win )
|
|
{
|
|
set_update_region( win, NULL );
|
|
|
|
if (win->paint_flags & PAINT_INTERNAL)
|
|
{
|
|
win->paint_flags &= ~PAINT_INTERNAL;
|
|
inc_window_paint_count( win, -1 );
|
|
}
|
|
}
|
|
|
|
|
|
/* validate a window's children so that we don't get any further paint messages for it */
|
|
static void validate_children( struct window *win )
|
|
{
|
|
struct window *child;
|
|
|
|
LIST_FOR_EACH_ENTRY( child, &win->children, struct window, entry )
|
|
{
|
|
if (!(child->style & WS_VISIBLE)) continue;
|
|
validate_children(child);
|
|
validate_whole_window(child);
|
|
}
|
|
}
|
|
|
|
|
|
/* validate the update region of a window on all parents; helper for get_update_region */
|
|
static void validate_parents( struct window *child )
|
|
{
|
|
int offset_x = 0, offset_y = 0;
|
|
struct window *win = child;
|
|
struct region *tmp = NULL;
|
|
|
|
if (!child->update_region) return;
|
|
|
|
while (win->parent)
|
|
{
|
|
/* map to parent client coords */
|
|
offset_x += win->window_rect.left;
|
|
offset_y += win->window_rect.top;
|
|
|
|
win = win->parent;
|
|
|
|
/* and now map to window coords */
|
|
offset_x += win->client_rect.left - win->window_rect.left;
|
|
offset_y += win->client_rect.top - win->window_rect.top;
|
|
|
|
if (win->update_region && !(win->style & WS_CLIPCHILDREN))
|
|
{
|
|
if (!tmp && !(tmp = create_empty_region())) return;
|
|
offset_region( child->update_region, offset_x, offset_y );
|
|
if (subtract_region( tmp, win->update_region, child->update_region ))
|
|
{
|
|
set_update_region( win, tmp );
|
|
tmp = NULL;
|
|
}
|
|
/* restore child coords */
|
|
offset_region( child->update_region, -offset_x, -offset_y );
|
|
}
|
|
}
|
|
if (tmp) free_region( tmp );
|
|
}
|
|
|
|
|
|
/* add/subtract a region (in client coordinates) to the update region of the window */
|
|
static void redraw_window( struct window *win, struct region *region, int frame, unsigned int flags )
|
|
{
|
|
struct region *tmp;
|
|
struct window *child;
|
|
|
|
if (flags & RDW_INVALIDATE)
|
|
{
|
|
if (!(tmp = crop_region_to_win_rect( win, region, frame ))) return;
|
|
|
|
if (!add_update_region( win, tmp )) return;
|
|
|
|
if (flags & RDW_FRAME) win->paint_flags |= PAINT_NONCLIENT;
|
|
if (flags & RDW_ERASE) win->paint_flags |= PAINT_ERASE;
|
|
}
|
|
else if (flags & RDW_VALIDATE)
|
|
{
|
|
if (!region && (flags & RDW_NOFRAME)) /* shortcut: validate everything */
|
|
{
|
|
set_update_region( win, NULL );
|
|
}
|
|
else if (win->update_region)
|
|
{
|
|
if ((tmp = crop_region_to_win_rect( win, region, frame )))
|
|
{
|
|
if (!subtract_region( tmp, win->update_region, tmp ))
|
|
{
|
|
free_region( tmp );
|
|
return;
|
|
}
|
|
set_update_region( win, tmp );
|
|
}
|
|
if (flags & RDW_NOFRAME) validate_non_client( win );
|
|
if (flags & RDW_NOERASE) win->paint_flags &= ~(PAINT_ERASE | PAINT_DELAYED_ERASE);
|
|
}
|
|
}
|
|
|
|
if ((flags & RDW_INTERNALPAINT) && !(win->paint_flags & PAINT_INTERNAL))
|
|
{
|
|
win->paint_flags |= PAINT_INTERNAL;
|
|
inc_window_paint_count( win, 1 );
|
|
}
|
|
else if ((flags & RDW_NOINTERNALPAINT) && (win->paint_flags & PAINT_INTERNAL))
|
|
{
|
|
win->paint_flags &= ~PAINT_INTERNAL;
|
|
inc_window_paint_count( win, -1 );
|
|
}
|
|
|
|
/* now process children recursively */
|
|
|
|
if (flags & RDW_NOCHILDREN) return;
|
|
if (win->style & WS_MINIMIZE) return;
|
|
if ((win->style & WS_CLIPCHILDREN) && !(flags & RDW_ALLCHILDREN)) return;
|
|
|
|
if (!(tmp = crop_region_to_win_rect( win, region, 0 ))) return;
|
|
|
|
/* map to client coordinates */
|
|
offset_region( tmp, win->window_rect.left - win->client_rect.left,
|
|
win->window_rect.top - win->client_rect.top );
|
|
|
|
if (flags & RDW_INVALIDATE) flags |= RDW_FRAME | RDW_ERASE;
|
|
|
|
LIST_FOR_EACH_ENTRY( child, &win->children, struct window, entry )
|
|
{
|
|
if (!(child->style & WS_VISIBLE)) continue;
|
|
if (!rect_in_region( tmp, &child->window_rect )) continue;
|
|
offset_region( tmp, -child->client_rect.left, -child->client_rect.top );
|
|
redraw_window( child, tmp, 1, flags );
|
|
offset_region( tmp, child->client_rect.left, child->client_rect.top );
|
|
}
|
|
free_region( tmp );
|
|
}
|
|
|
|
|
|
/* retrieve the update flags for a window depending on the state of the update region */
|
|
static unsigned int get_update_flags( struct window *win, unsigned int flags )
|
|
{
|
|
unsigned int ret = 0;
|
|
|
|
if (flags & UPDATE_NONCLIENT)
|
|
{
|
|
if ((win->paint_flags & PAINT_NONCLIENT) && win->update_region) ret |= UPDATE_NONCLIENT;
|
|
}
|
|
if (flags & UPDATE_ERASE)
|
|
{
|
|
if ((win->paint_flags & PAINT_ERASE) && win->update_region) ret |= UPDATE_ERASE;
|
|
}
|
|
if (flags & UPDATE_PAINT)
|
|
{
|
|
if (win->update_region)
|
|
{
|
|
if (win->paint_flags & PAINT_DELAYED_ERASE) ret |= UPDATE_DELAYED_ERASE;
|
|
ret |= UPDATE_PAINT;
|
|
}
|
|
}
|
|
if (flags & UPDATE_INTERNALPAINT)
|
|
{
|
|
if (win->paint_flags & PAINT_INTERNAL)
|
|
{
|
|
ret |= UPDATE_INTERNALPAINT;
|
|
if (win->paint_flags & PAINT_DELAYED_ERASE) ret |= UPDATE_DELAYED_ERASE;
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
|
|
/* iterate through the children of the given window until we find one with some update flags */
|
|
static unsigned int get_child_update_flags( struct window *win, struct window *from_child,
|
|
unsigned int flags, struct window **child )
|
|
{
|
|
struct window *ptr;
|
|
unsigned int ret = 0;
|
|
|
|
/* first make sure we want to iterate children at all */
|
|
|
|
if (win->style & WS_MINIMIZE) return 0;
|
|
|
|
/* note: the WS_CLIPCHILDREN test is the opposite of the invalidation case,
|
|
* here we only want to repaint children of windows that clip them, others
|
|
* need to wait for WM_PAINT to be done in the parent first.
|
|
*/
|
|
if (!(flags & UPDATE_ALLCHILDREN) && !(win->style & WS_CLIPCHILDREN)) return 0;
|
|
|
|
LIST_FOR_EACH_ENTRY( ptr, &win->children, struct window, entry )
|
|
{
|
|
if (from_child) /* skip all children until from_child is found */
|
|
{
|
|
if (ptr == from_child) from_child = NULL;
|
|
continue;
|
|
}
|
|
if (!(ptr->style & WS_VISIBLE)) continue;
|
|
if ((ret = get_update_flags( ptr, flags )) != 0)
|
|
{
|
|
*child = ptr;
|
|
break;
|
|
}
|
|
if ((ret = get_child_update_flags( ptr, NULL, flags, child ))) break;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/* iterate through children and siblings of the given window until we find one with some update flags */
|
|
static unsigned int get_window_update_flags( struct window *win, struct window *from_child,
|
|
unsigned int flags, struct window **child )
|
|
{
|
|
unsigned int ret;
|
|
struct window *ptr, *from_sibling = NULL;
|
|
|
|
/* if some parent is not visible start from the next sibling */
|
|
|
|
if (!is_visible( win )) return 0;
|
|
for (ptr = from_child; ptr; ptr = ptr->parent)
|
|
{
|
|
if (!(ptr->style & WS_VISIBLE) || (ptr->style & WS_MINIMIZE)) from_sibling = ptr;
|
|
if (ptr == win) break;
|
|
}
|
|
|
|
/* non-client painting must be delayed if one of the parents is going to
|
|
* be repainted and doesn't clip children */
|
|
|
|
if ((flags & UPDATE_NONCLIENT) && !(flags & (UPDATE_PAINT|UPDATE_INTERNALPAINT)))
|
|
{
|
|
for (ptr = win->parent; ptr; ptr = ptr->parent)
|
|
{
|
|
if (!(ptr->style & WS_CLIPCHILDREN) && win_needs_repaint( ptr ))
|
|
return 0;
|
|
}
|
|
if (from_child && !(flags & UPDATE_ALLCHILDREN))
|
|
{
|
|
for (ptr = from_sibling ? from_sibling : from_child; ptr; ptr = ptr->parent)
|
|
{
|
|
if (!(ptr->style & WS_CLIPCHILDREN) && win_needs_repaint( ptr )) from_sibling = ptr;
|
|
if (ptr == win) break;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/* check window itself (only if not restarting from a child) */
|
|
|
|
if (!from_child)
|
|
{
|
|
if ((ret = get_update_flags( win, flags )))
|
|
{
|
|
*child = win;
|
|
return ret;
|
|
}
|
|
from_child = win;
|
|
}
|
|
|
|
/* now check children */
|
|
|
|
if (flags & UPDATE_NOCHILDREN) return 0;
|
|
if (!from_sibling)
|
|
{
|
|
if ((ret = get_child_update_flags( from_child, NULL, flags, child ))) return ret;
|
|
from_sibling = from_child;
|
|
}
|
|
|
|
/* then check siblings and parent siblings */
|
|
|
|
while (from_sibling->parent && from_sibling != win)
|
|
{
|
|
if ((ret = get_child_update_flags( from_sibling->parent, from_sibling, flags, child )))
|
|
return ret;
|
|
from_sibling = from_sibling->parent;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
/* expose the areas revealed by a vis region change on the window parent */
|
|
/* returns the region exposed on the window itself (in client coordinates) */
|
|
static struct region *expose_window( struct window *win, const rectangle_t *old_window_rect,
|
|
struct region *old_vis_rgn )
|
|
{
|
|
struct region *new_vis_rgn, *exposed_rgn;
|
|
|
|
if (!(new_vis_rgn = get_visible_region( win, DCX_WINDOW ))) return NULL;
|
|
|
|
if ((exposed_rgn = create_empty_region()))
|
|
{
|
|
if (subtract_region( exposed_rgn, new_vis_rgn, old_vis_rgn ) && !is_region_empty( exposed_rgn ))
|
|
{
|
|
/* make it relative to the new client area */
|
|
offset_region( exposed_rgn, win->window_rect.left - win->client_rect.left,
|
|
win->window_rect.top - win->client_rect.top );
|
|
}
|
|
else
|
|
{
|
|
free_region( exposed_rgn );
|
|
exposed_rgn = NULL;
|
|
}
|
|
}
|
|
|
|
if (win->parent && !is_desktop_window( win->parent ))
|
|
{
|
|
/* make it relative to the old window pos for subtracting */
|
|
offset_region( new_vis_rgn, win->window_rect.left - old_window_rect->left,
|
|
win->window_rect.top - old_window_rect->top );
|
|
|
|
if ((win->parent->style & WS_CLIPCHILDREN) ?
|
|
subtract_region( new_vis_rgn, old_vis_rgn, new_vis_rgn ) :
|
|
xor_region( new_vis_rgn, old_vis_rgn, new_vis_rgn ))
|
|
{
|
|
if (!is_region_empty( new_vis_rgn ))
|
|
{
|
|
/* make it relative to parent */
|
|
offset_region( new_vis_rgn, old_window_rect->left, old_window_rect->top );
|
|
redraw_window( win->parent, new_vis_rgn, 0, RDW_INVALIDATE | RDW_ERASE | RDW_ALLCHILDREN );
|
|
}
|
|
}
|
|
}
|
|
free_region( new_vis_rgn );
|
|
return exposed_rgn;
|
|
}
|
|
|
|
|
|
/* set the window and client rectangles, updating the update region if necessary */
|
|
static void set_window_pos( struct window *win, struct window *previous,
|
|
unsigned int swp_flags, const rectangle_t *window_rect,
|
|
const rectangle_t *client_rect, const rectangle_t *visible_rect,
|
|
const rectangle_t *valid_rects )
|
|
{
|
|
struct region *old_vis_rgn = NULL, *exposed_rgn = NULL;
|
|
const rectangle_t old_window_rect = win->window_rect;
|
|
const rectangle_t old_visible_rect = win->visible_rect;
|
|
const rectangle_t old_client_rect = win->client_rect;
|
|
rectangle_t rect;
|
|
int client_changed, frame_changed;
|
|
int visible = (win->style & WS_VISIBLE) || (swp_flags & SWP_SHOWWINDOW);
|
|
|
|
if (win->parent && !is_visible( win->parent )) visible = 0;
|
|
|
|
if (visible && !(old_vis_rgn = get_visible_region( win, DCX_WINDOW ))) return;
|
|
|
|
/* set the new window info before invalidating anything */
|
|
|
|
win->window_rect = *window_rect;
|
|
win->visible_rect = *visible_rect;
|
|
win->client_rect = *client_rect;
|
|
if (!(swp_flags & SWP_NOZORDER) && win->parent) link_window( win, previous );
|
|
if (swp_flags & SWP_SHOWWINDOW) win->style |= WS_VISIBLE;
|
|
else if (swp_flags & SWP_HIDEWINDOW) win->style &= ~WS_VISIBLE;
|
|
|
|
/* keep children at the same position relative to top right corner when the parent is mirrored */
|
|
if (win->ex_style & WS_EX_LAYOUTRTL)
|
|
{
|
|
struct window *child;
|
|
int old_size = old_client_rect.right - old_client_rect.left;
|
|
int new_size = win->client_rect.right - win->client_rect.left;
|
|
|
|
if (old_size != new_size) LIST_FOR_EACH_ENTRY( child, &win->children, struct window, entry )
|
|
{
|
|
offset_rect( &child->window_rect, new_size - old_size, 0 );
|
|
offset_rect( &child->visible_rect, new_size - old_size, 0 );
|
|
offset_rect( &child->client_rect, new_size - old_size, 0 );
|
|
}
|
|
}
|
|
|
|
/* reset cursor clip rectangle when the desktop changes size */
|
|
if (win == win->desktop->top_window) win->desktop->cursor.clip = *window_rect;
|
|
|
|
/* if the window is not visible, everything is easy */
|
|
if (!visible) return;
|
|
|
|
/* expose anything revealed by the change */
|
|
|
|
if (!(swp_flags & SWP_NOREDRAW))
|
|
exposed_rgn = expose_window( win, &old_window_rect, old_vis_rgn );
|
|
|
|
if (!(win->style & WS_VISIBLE))
|
|
{
|
|
/* clear the update region since the window is no longer visible */
|
|
validate_whole_window( win );
|
|
validate_children( win );
|
|
goto done;
|
|
}
|
|
|
|
/* crop update region to the new window rect */
|
|
|
|
if (win->update_region)
|
|
{
|
|
if (get_window_visible_rect( win, &rect, 1 ))
|
|
{
|
|
struct region *tmp = create_empty_region();
|
|
if (tmp)
|
|
{
|
|
set_region_rect( tmp, &rect );
|
|
if (intersect_region( tmp, win->update_region, tmp ))
|
|
set_update_region( win, tmp );
|
|
else
|
|
free_region( tmp );
|
|
}
|
|
}
|
|
else set_update_region( win, NULL ); /* visible rect is empty */
|
|
}
|
|
|
|
/* crop children regions to the new window rect */
|
|
|
|
if (get_window_visible_rect( win, &rect, 0 ))
|
|
{
|
|
/* map to client coords */
|
|
offset_rect( &rect, win->window_rect.left - win->client_rect.left,
|
|
win->window_rect.top - win->client_rect.top );
|
|
crop_children_update_region( win, &rect );
|
|
}
|
|
else crop_children_update_region( win, NULL );
|
|
|
|
if (swp_flags & SWP_NOREDRAW) goto done; /* do not repaint anything */
|
|
|
|
/* expose the whole non-client area if it changed in any way */
|
|
|
|
if (swp_flags & SWP_NOCOPYBITS)
|
|
{
|
|
frame_changed = ((swp_flags & SWP_FRAMECHANGED) ||
|
|
memcmp( window_rect, &old_window_rect, sizeof(old_window_rect) ) ||
|
|
memcmp( visible_rect, &old_visible_rect, sizeof(old_visible_rect) ));
|
|
client_changed = memcmp( client_rect, &old_client_rect, sizeof(old_client_rect) );
|
|
}
|
|
else
|
|
{
|
|
/* assume the bits have been moved to follow the window rect */
|
|
int x_offset = window_rect->left - old_window_rect.left;
|
|
int y_offset = window_rect->top - old_window_rect.top;
|
|
frame_changed = ((swp_flags & SWP_FRAMECHANGED) ||
|
|
window_rect->right - old_window_rect.right != x_offset ||
|
|
window_rect->bottom - old_window_rect.bottom != y_offset ||
|
|
visible_rect->left - old_visible_rect.left != x_offset ||
|
|
visible_rect->right - old_visible_rect.right != x_offset ||
|
|
visible_rect->top - old_visible_rect.top != y_offset ||
|
|
visible_rect->bottom - old_visible_rect.bottom != y_offset);
|
|
client_changed = (client_rect->left - old_client_rect.left != x_offset ||
|
|
client_rect->right - old_client_rect.right != x_offset ||
|
|
client_rect->top - old_client_rect.top != y_offset ||
|
|
client_rect->bottom - old_client_rect.bottom != y_offset ||
|
|
!valid_rects ||
|
|
memcmp( &valid_rects[0], client_rect, sizeof(*client_rect) ));
|
|
}
|
|
|
|
if (frame_changed || client_changed)
|
|
{
|
|
struct region *win_rgn = old_vis_rgn; /* reuse previous region */
|
|
|
|
set_region_rect( win_rgn, window_rect );
|
|
if (valid_rects)
|
|
{
|
|
/* subtract the valid portion of client rect from the total region */
|
|
struct region *tmp = create_empty_region();
|
|
if (tmp)
|
|
{
|
|
set_region_rect( tmp, &valid_rects[0] );
|
|
/* subtract update region since invalid parts of the valid rect won't be copied */
|
|
if (win->update_region)
|
|
{
|
|
offset_region( tmp, -window_rect->left, -window_rect->top );
|
|
subtract_region( tmp, tmp, win->update_region );
|
|
offset_region( tmp, window_rect->left, window_rect->top );
|
|
}
|
|
if (subtract_region( tmp, win_rgn, tmp )) win_rgn = tmp;
|
|
else free_region( tmp );
|
|
}
|
|
}
|
|
if (!is_desktop_window(win))
|
|
offset_region( win_rgn, -client_rect->left, -client_rect->top );
|
|
if (exposed_rgn)
|
|
{
|
|
union_region( exposed_rgn, exposed_rgn, win_rgn );
|
|
if (win_rgn != old_vis_rgn) free_region( win_rgn );
|
|
}
|
|
else
|
|
{
|
|
exposed_rgn = win_rgn;
|
|
if (win_rgn == old_vis_rgn) old_vis_rgn = NULL;
|
|
}
|
|
}
|
|
|
|
if (exposed_rgn)
|
|
redraw_window( win, exposed_rgn, 1, RDW_INVALIDATE | RDW_ERASE | RDW_FRAME | RDW_ALLCHILDREN );
|
|
|
|
done:
|
|
if (old_vis_rgn) free_region( old_vis_rgn );
|
|
if (exposed_rgn) free_region( exposed_rgn );
|
|
clear_error(); /* we ignore out of memory errors once the new rects have been set */
|
|
}
|
|
|
|
|
|
/* set the window region, updating the update region if necessary */
|
|
static void set_window_region( struct window *win, struct region *region, int redraw )
|
|
{
|
|
struct region *old_vis_rgn = NULL, *exposed_rgn;
|
|
|
|
/* no need to redraw if window is not visible */
|
|
if (redraw && !is_visible( win )) redraw = 0;
|
|
|
|
if (redraw) old_vis_rgn = get_visible_region( win, DCX_WINDOW );
|
|
|
|
if (win->win_region) free_region( win->win_region );
|
|
win->win_region = region;
|
|
|
|
/* expose anything revealed by the change */
|
|
if (old_vis_rgn && ((exposed_rgn = expose_window( win, &win->window_rect, old_vis_rgn ))))
|
|
{
|
|
redraw_window( win, exposed_rgn, 1, RDW_INVALIDATE | RDW_ERASE | RDW_FRAME | RDW_ALLCHILDREN );
|
|
free_region( exposed_rgn );
|
|
}
|
|
|
|
if (old_vis_rgn) free_region( old_vis_rgn );
|
|
clear_error(); /* we ignore out of memory errors since the region has been set */
|
|
}
|
|
|
|
|
|
/* destroy a window */
|
|
void destroy_window( struct window *win )
|
|
{
|
|
/* hide the window */
|
|
if (is_visible(win))
|
|
{
|
|
struct region *vis_rgn = get_visible_region( win, DCX_WINDOW );
|
|
win->style &= ~WS_VISIBLE;
|
|
if (vis_rgn)
|
|
{
|
|
struct region *exposed_rgn = expose_window( win, &win->window_rect, vis_rgn );
|
|
if (exposed_rgn) free_region( exposed_rgn );
|
|
free_region( vis_rgn );
|
|
}
|
|
validate_whole_window( win );
|
|
validate_children( win );
|
|
}
|
|
|
|
/* destroy all children */
|
|
while (!list_empty(&win->children))
|
|
destroy_window( LIST_ENTRY( list_head(&win->children), struct window, entry ));
|
|
while (!list_empty(&win->unlinked))
|
|
destroy_window( LIST_ENTRY( list_head(&win->unlinked), struct window, entry ));
|
|
|
|
/* reset global window pointers, if the corresponding window is destroyed */
|
|
if (win == shell_window) shell_window = NULL;
|
|
if (win == shell_listview) shell_listview = NULL;
|
|
if (win == progman_window) progman_window = NULL;
|
|
if (win == taskman_window) taskman_window = NULL;
|
|
free_hotkeys( win->desktop, win->handle );
|
|
cleanup_clipboard_window( win->desktop, win->handle );
|
|
free_user_handle( win->handle );
|
|
destroy_properties( win );
|
|
list_remove( &win->entry );
|
|
if (is_desktop_window(win))
|
|
{
|
|
struct desktop *desktop = win->desktop;
|
|
assert( desktop->top_window == win || desktop->msg_window == win );
|
|
if (desktop->top_window == win) desktop->top_window = NULL;
|
|
else desktop->msg_window = NULL;
|
|
}
|
|
else if (is_desktop_window( win->parent ))
|
|
{
|
|
post_message( win->parent->handle, WM_PARENTNOTIFY, WM_DESTROY, win->handle );
|
|
}
|
|
|
|
detach_window_thread( win );
|
|
if (win->win_region) free_region( win->win_region );
|
|
if (win->update_region) free_region( win->update_region );
|
|
if (win->class) release_class( win->class );
|
|
free( win->text );
|
|
memset( win, 0x55, sizeof(*win) + win->nb_extra_bytes - 1 );
|
|
free( win );
|
|
}
|
|
|
|
|
|
/* create a window */
|
|
DECL_HANDLER(create_window)
|
|
{
|
|
struct window *win, *parent = NULL, *owner = NULL;
|
|
struct unicode_str cls_name = get_req_unicode_str();
|
|
atom_t atom;
|
|
|
|
reply->handle = 0;
|
|
if (req->parent && !(parent = get_window( req->parent ))) return;
|
|
|
|
if (req->owner)
|
|
{
|
|
if (!(owner = get_window( req->owner ))) return;
|
|
if (is_desktop_window(owner)) owner = NULL;
|
|
else if (parent && !is_desktop_window(parent))
|
|
{
|
|
/* an owned window must be created as top-level */
|
|
set_error( STATUS_ACCESS_DENIED );
|
|
return;
|
|
}
|
|
else /* owner must be a top-level window */
|
|
while ((owner->style & (WS_POPUP|WS_CHILD)) == WS_CHILD && !is_desktop_window(owner->parent))
|
|
owner = owner->parent;
|
|
}
|
|
|
|
atom = cls_name.len ? find_global_atom( NULL, &cls_name ) : req->atom;
|
|
|
|
if (!(win = create_window( parent, owner, atom, req->instance, req->awareness ))) return;
|
|
|
|
reply->handle = win->handle;
|
|
reply->parent = win->parent ? win->parent->handle : 0;
|
|
reply->owner = win->owner;
|
|
reply->extra = win->nb_extra_bytes;
|
|
reply->awareness = win->dpi_awareness;
|
|
reply->class_ptr = get_class_client_ptr( win->class );
|
|
}
|
|
|
|
|
|
/* set the parent of a window */
|
|
DECL_HANDLER(set_parent)
|
|
{
|
|
struct window *win, *parent = NULL;
|
|
|
|
if (!(win = get_window( req->handle ))) return;
|
|
if (req->parent && !(parent = get_window( req->parent ))) return;
|
|
|
|
if (is_desktop_window(win))
|
|
{
|
|
set_error( STATUS_INVALID_PARAMETER );
|
|
return;
|
|
}
|
|
reply->old_parent = win->parent->handle;
|
|
reply->full_parent = parent ? parent->handle : 0;
|
|
set_parent_window( win, parent );
|
|
reply->awareness = win->dpi_awareness;
|
|
}
|
|
|
|
|
|
/* destroy a window */
|
|
DECL_HANDLER(destroy_window)
|
|
{
|
|
struct window *win = get_window( req->handle );
|
|
if (win)
|
|
{
|
|
if (!is_desktop_window(win)) destroy_window( win );
|
|
else if (win->thread == current) detach_window_thread( win );
|
|
else set_error( STATUS_ACCESS_DENIED );
|
|
}
|
|
}
|
|
|
|
|
|
/* retrieve the desktop window for the current thread */
|
|
DECL_HANDLER(get_desktop_window)
|
|
{
|
|
struct desktop *desktop = get_thread_desktop( current, 0 );
|
|
int force;
|
|
|
|
if (!desktop) return;
|
|
|
|
/* if winstation is invisible, then avoid roundtrip */
|
|
force = req->force || !(desktop->winstation->flags & WSF_VISIBLE);
|
|
|
|
if (!desktop->top_window && force) /* create it */
|
|
{
|
|
if ((desktop->top_window = create_window( NULL, NULL, DESKTOP_ATOM, 0,
|
|
DPI_AWARENESS_PER_MONITOR_AWARE )))
|
|
{
|
|
detach_window_thread( desktop->top_window );
|
|
desktop->top_window->style = WS_POPUP | WS_VISIBLE | WS_CLIPSIBLINGS | WS_CLIPCHILDREN;
|
|
}
|
|
}
|
|
|
|
if (!desktop->msg_window && force) /* create it */
|
|
{
|
|
static const WCHAR messageW[] = {'M','e','s','s','a','g','e'};
|
|
static const struct unicode_str name = { messageW, sizeof(messageW) };
|
|
atom_t atom = add_global_atom( NULL, &name );
|
|
if (atom && (desktop->msg_window = create_window( NULL, NULL, atom, 0,
|
|
DPI_AWARENESS_PER_MONITOR_AWARE )))
|
|
{
|
|
detach_window_thread( desktop->msg_window );
|
|
desktop->msg_window->style = WS_POPUP | WS_CLIPSIBLINGS | WS_CLIPCHILDREN;
|
|
}
|
|
}
|
|
|
|
reply->top_window = desktop->top_window ? desktop->top_window->handle : 0;
|
|
reply->msg_window = desktop->msg_window ? desktop->msg_window->handle : 0;
|
|
release_object( desktop );
|
|
}
|
|
|
|
|
|
/* set a window owner */
|
|
DECL_HANDLER(set_window_owner)
|
|
{
|
|
struct window *win = get_window( req->handle );
|
|
struct window *owner = NULL, *ptr;
|
|
|
|
if (!win) return;
|
|
if (req->owner && !(owner = get_window( req->owner ))) return;
|
|
if (is_desktop_window(win))
|
|
{
|
|
set_error( STATUS_ACCESS_DENIED );
|
|
return;
|
|
}
|
|
|
|
/* make sure owner is not a successor of window */
|
|
for (ptr = owner; ptr; ptr = ptr->owner ? get_window( ptr->owner ) : NULL)
|
|
{
|
|
if (ptr == win)
|
|
{
|
|
set_error( STATUS_INVALID_PARAMETER );
|
|
return;
|
|
}
|
|
}
|
|
|
|
reply->prev_owner = win->owner;
|
|
reply->full_owner = win->owner = owner ? owner->handle : 0;
|
|
}
|
|
|
|
|
|
/* get information from a window handle */
|
|
DECL_HANDLER(get_window_info)
|
|
{
|
|
struct window *win = get_window( req->handle );
|
|
|
|
if (!win) return;
|
|
|
|
reply->full_handle = win->handle;
|
|
reply->last_active = win->handle;
|
|
reply->is_unicode = win->is_unicode;
|
|
reply->awareness = win->dpi_awareness;
|
|
if (get_user_object( win->last_active, USER_WINDOW )) reply->last_active = win->last_active;
|
|
if (win->thread)
|
|
{
|
|
reply->tid = get_thread_id( win->thread );
|
|
reply->pid = get_process_id( win->thread->process );
|
|
reply->atom = win->class ? get_class_atom( win->class ) : DESKTOP_ATOM;
|
|
}
|
|
}
|
|
|
|
|
|
/* set some information in a window */
|
|
DECL_HANDLER(set_window_info)
|
|
{
|
|
struct window *win = get_window( req->handle );
|
|
|
|
if (!win) return;
|
|
if (req->flags && is_desktop_window(win) && win->thread != current)
|
|
{
|
|
set_error( STATUS_ACCESS_DENIED );
|
|
return;
|
|
}
|
|
if (req->extra_size > sizeof(req->extra_value) ||
|
|
req->extra_offset < -1 ||
|
|
req->extra_offset > win->nb_extra_bytes - (int)req->extra_size)
|
|
{
|
|
set_win32_error( ERROR_INVALID_INDEX );
|
|
return;
|
|
}
|
|
if (req->extra_offset != -1)
|
|
{
|
|
memcpy( &reply->old_extra_value, win->extra_bytes + req->extra_offset, req->extra_size );
|
|
}
|
|
else if (req->flags & SET_WIN_EXTRA)
|
|
{
|
|
set_win32_error( ERROR_INVALID_INDEX );
|
|
return;
|
|
}
|
|
reply->old_style = win->style;
|
|
reply->old_ex_style = win->ex_style;
|
|
reply->old_id = win->id;
|
|
reply->old_instance = win->instance;
|
|
reply->old_user_data = win->user_data;
|
|
if (req->flags & SET_WIN_STYLE) win->style = req->style;
|
|
if (req->flags & SET_WIN_EXSTYLE)
|
|
{
|
|
/* WS_EX_TOPMOST can only be changed for unlinked windows */
|
|
if (!win->is_linked) win->ex_style = req->ex_style;
|
|
else win->ex_style = (req->ex_style & ~WS_EX_TOPMOST) | (win->ex_style & WS_EX_TOPMOST);
|
|
if (!(win->ex_style & WS_EX_LAYERED)) win->is_layered = 0;
|
|
}
|
|
if (req->flags & SET_WIN_ID) win->id = req->id;
|
|
if (req->flags & SET_WIN_INSTANCE) win->instance = req->instance;
|
|
if (req->flags & SET_WIN_UNICODE) win->is_unicode = req->is_unicode;
|
|
if (req->flags & SET_WIN_USERDATA) win->user_data = req->user_data;
|
|
if (req->flags & SET_WIN_EXTRA) memcpy( win->extra_bytes + req->extra_offset,
|
|
&req->extra_value, req->extra_size );
|
|
|
|
/* changing window style triggers a non-client paint */
|
|
if (req->flags & SET_WIN_STYLE) win->paint_flags |= PAINT_NONCLIENT;
|
|
}
|
|
|
|
|
|
/* get a list of the window parents, up to the root of the tree */
|
|
DECL_HANDLER(get_window_parents)
|
|
{
|
|
struct window *ptr, *win = get_window( req->handle );
|
|
int total = 0;
|
|
user_handle_t *data;
|
|
data_size_t len;
|
|
|
|
if (win) for (ptr = win->parent; ptr; ptr = ptr->parent) total++;
|
|
|
|
reply->count = total;
|
|
len = min( get_reply_max_size(), total * sizeof(user_handle_t) );
|
|
if (len && ((data = set_reply_data_size( len ))))
|
|
{
|
|
for (ptr = win->parent; ptr && len; ptr = ptr->parent, len -= sizeof(*data))
|
|
*data++ = ptr->handle;
|
|
}
|
|
}
|
|
|
|
|
|
/* get a list of the window children */
|
|
DECL_HANDLER(get_window_children)
|
|
{
|
|
struct window *parent = NULL;
|
|
unsigned int total;
|
|
user_handle_t *data;
|
|
data_size_t len;
|
|
struct unicode_str cls_name = get_req_unicode_str();
|
|
atom_t atom = req->atom;
|
|
struct desktop *desktop = NULL;
|
|
|
|
if (cls_name.len && !(atom = find_global_atom( NULL, &cls_name ))) return;
|
|
|
|
if (req->desktop)
|
|
{
|
|
if (!(desktop = get_desktop_obj( current->process, req->desktop, DESKTOP_ENUMERATE ))) return;
|
|
parent = desktop->top_window;
|
|
}
|
|
else
|
|
{
|
|
if (req->parent && !(parent = get_window( req->parent ))) return;
|
|
if (!parent && !(desktop = get_thread_desktop( current, 0 ))) return;
|
|
}
|
|
|
|
if (parent)
|
|
total = get_children_windows( parent, atom, req->tid, NULL, 0 );
|
|
else
|
|
total = get_children_windows( desktop->top_window, atom, req->tid, NULL, 0 ) +
|
|
get_children_windows( desktop->msg_window, atom, req->tid, NULL, 0 );
|
|
|
|
reply->count = total;
|
|
len = min( get_reply_max_size(), total * sizeof(user_handle_t) );
|
|
if (len && ((data = set_reply_data_size( len ))))
|
|
{
|
|
if (parent) get_children_windows( parent, atom, req->tid, data, len / sizeof(user_handle_t) );
|
|
else
|
|
{
|
|
total = get_children_windows( desktop->top_window, atom, req->tid,
|
|
data, len / sizeof(user_handle_t) );
|
|
data += total;
|
|
len -= total * sizeof(user_handle_t);
|
|
if (len >= sizeof(user_handle_t))
|
|
get_children_windows( desktop->msg_window, atom, req->tid,
|
|
data, len / sizeof(user_handle_t) );
|
|
}
|
|
}
|
|
if (desktop) release_object( desktop );
|
|
}
|
|
|
|
|
|
/* get a list of the window children that contain a given point */
|
|
DECL_HANDLER(get_window_children_from_point)
|
|
{
|
|
struct user_handle_array array;
|
|
struct window *parent = get_window( req->parent );
|
|
data_size_t len;
|
|
|
|
if (!parent) return;
|
|
|
|
array.handles = NULL;
|
|
array.count = 0;
|
|
array.total = 0;
|
|
if (!all_windows_from_point( parent, req->x, req->y, &array )) return;
|
|
|
|
reply->count = array.count;
|
|
len = min( get_reply_max_size(), array.count * sizeof(user_handle_t) );
|
|
if (len) set_reply_data_ptr( array.handles, len );
|
|
else free( array.handles );
|
|
}
|
|
|
|
|
|
/* get window tree information from a window handle */
|
|
DECL_HANDLER(get_window_tree)
|
|
{
|
|
struct window *ptr, *win = get_window( req->handle );
|
|
|
|
if (!win) return;
|
|
|
|
reply->parent = 0;
|
|
reply->owner = 0;
|
|
reply->next_sibling = 0;
|
|
reply->prev_sibling = 0;
|
|
reply->first_sibling = 0;
|
|
reply->last_sibling = 0;
|
|
reply->first_child = 0;
|
|
reply->last_child = 0;
|
|
|
|
if (win->parent)
|
|
{
|
|
struct window *parent = win->parent;
|
|
reply->parent = parent->handle;
|
|
reply->owner = win->owner;
|
|
if (win->is_linked)
|
|
{
|
|
if ((ptr = get_next_window( win ))) reply->next_sibling = ptr->handle;
|
|
if ((ptr = get_prev_window( win ))) reply->prev_sibling = ptr->handle;
|
|
}
|
|
if ((ptr = get_first_child( parent ))) reply->first_sibling = ptr->handle;
|
|
if ((ptr = get_last_child( parent ))) reply->last_sibling = ptr->handle;
|
|
}
|
|
if ((ptr = get_first_child( win ))) reply->first_child = ptr->handle;
|
|
if ((ptr = get_last_child( win ))) reply->last_child = ptr->handle;
|
|
}
|
|
|
|
|
|
/* set the position and Z order of a window */
|
|
DECL_HANDLER(set_window_pos)
|
|
{
|
|
rectangle_t window_rect, client_rect, visible_rect;
|
|
struct window *previous = NULL;
|
|
struct window *top, *win = get_window( req->handle );
|
|
unsigned int flags = req->swp_flags;
|
|
|
|
if (!win) return;
|
|
if (!win->parent) flags |= SWP_NOZORDER; /* no Z order for the desktop */
|
|
|
|
if (!(flags & SWP_NOZORDER))
|
|
{
|
|
switch ((int)req->previous)
|
|
{
|
|
case 0: /* HWND_TOP */
|
|
previous = WINPTR_TOP;
|
|
break;
|
|
case 1: /* HWND_BOTTOM */
|
|
previous = WINPTR_BOTTOM;
|
|
break;
|
|
case -1: /* HWND_TOPMOST */
|
|
previous = WINPTR_TOPMOST;
|
|
break;
|
|
case -2: /* HWND_NOTOPMOST */
|
|
previous = WINPTR_NOTOPMOST;
|
|
break;
|
|
default:
|
|
if (!(previous = get_window( req->previous ))) return;
|
|
/* previous must be a sibling */
|
|
if (previous->parent != win->parent)
|
|
{
|
|
set_error( STATUS_INVALID_PARAMETER );
|
|
return;
|
|
}
|
|
break;
|
|
}
|
|
if (previous == win) flags |= SWP_NOZORDER; /* nothing to do */
|
|
}
|
|
|
|
/* windows that use UpdateLayeredWindow don't trigger repaints */
|
|
if ((win->ex_style & WS_EX_LAYERED) && !win->is_layered) flags |= SWP_NOREDRAW;
|
|
|
|
/* window rectangle must be ordered properly */
|
|
if (req->window.right < req->window.left || req->window.bottom < req->window.top)
|
|
{
|
|
set_error( STATUS_INVALID_PARAMETER );
|
|
return;
|
|
}
|
|
|
|
window_rect = visible_rect = req->window;
|
|
client_rect = req->client;
|
|
if (get_req_data_size() >= sizeof(rectangle_t))
|
|
memcpy( &visible_rect, get_req_data(), sizeof(rectangle_t) );
|
|
if (win->parent && win->parent->ex_style & WS_EX_LAYOUTRTL)
|
|
{
|
|
mirror_rect( &win->parent->client_rect, &window_rect );
|
|
mirror_rect( &win->parent->client_rect, &visible_rect );
|
|
mirror_rect( &win->parent->client_rect, &client_rect );
|
|
}
|
|
|
|
win->paint_flags = (win->paint_flags & ~PAINT_CLIENT_FLAGS) | (req->paint_flags & PAINT_CLIENT_FLAGS);
|
|
if (win->paint_flags & PAINT_HAS_PIXEL_FORMAT) update_pixel_format_flags( win );
|
|
|
|
if (get_req_data_size() >= 3 * sizeof(rectangle_t))
|
|
{
|
|
rectangle_t valid_rects[2];
|
|
memcpy( valid_rects, (const rectangle_t *)get_req_data() + 1, 2 * sizeof(rectangle_t) );
|
|
if (win->parent && win->parent->ex_style & WS_EX_LAYOUTRTL)
|
|
{
|
|
mirror_rect( &win->parent->client_rect, &valid_rects[0] );
|
|
mirror_rect( &win->parent->client_rect, &valid_rects[1] );
|
|
}
|
|
set_window_pos( win, previous, flags, &window_rect, &client_rect, &visible_rect, valid_rects );
|
|
}
|
|
else set_window_pos( win, previous, flags, &window_rect, &client_rect, &visible_rect, NULL );
|
|
|
|
reply->new_style = win->style;
|
|
reply->new_ex_style = win->ex_style;
|
|
|
|
top = get_top_clipping_window( win );
|
|
if (is_visible( top ) && (top->paint_flags & PAINT_HAS_SURFACE))
|
|
{
|
|
reply->surface_win = top->handle;
|
|
reply->needs_update = !!(top->paint_flags & (PAINT_HAS_PIXEL_FORMAT | PAINT_PIXEL_FORMAT_CHILD));
|
|
}
|
|
}
|
|
|
|
|
|
/* get the window and client rectangles of a window */
|
|
DECL_HANDLER(get_window_rectangles)
|
|
{
|
|
struct window *win = get_window( req->handle );
|
|
|
|
if (!win) return;
|
|
|
|
reply->window = win->window_rect;
|
|
reply->visible = win->visible_rect;
|
|
reply->client = win->client_rect;
|
|
|
|
switch (req->relative)
|
|
{
|
|
case COORDS_CLIENT:
|
|
offset_rect( &reply->window, -win->client_rect.left, -win->client_rect.top );
|
|
offset_rect( &reply->visible, -win->client_rect.left, -win->client_rect.top );
|
|
offset_rect( &reply->client, -win->client_rect.left, -win->client_rect.top );
|
|
if (win->ex_style & WS_EX_LAYOUTRTL)
|
|
{
|
|
mirror_rect( &win->client_rect, &reply->window );
|
|
mirror_rect( &win->client_rect, &reply->visible );
|
|
}
|
|
break;
|
|
case COORDS_WINDOW:
|
|
offset_rect( &reply->window, -win->window_rect.left, -win->window_rect.top );
|
|
offset_rect( &reply->visible, -win->window_rect.left, -win->window_rect.top );
|
|
offset_rect( &reply->client, -win->window_rect.left, -win->window_rect.top );
|
|
if (win->ex_style & WS_EX_LAYOUTRTL)
|
|
{
|
|
mirror_rect( &win->window_rect, &reply->visible );
|
|
mirror_rect( &win->window_rect, &reply->client );
|
|
}
|
|
break;
|
|
case COORDS_PARENT:
|
|
if (win->parent && win->parent->ex_style & WS_EX_LAYOUTRTL)
|
|
{
|
|
mirror_rect( &win->parent->client_rect, &reply->window );
|
|
mirror_rect( &win->parent->client_rect, &reply->visible );
|
|
mirror_rect( &win->parent->client_rect, &reply->client );
|
|
}
|
|
break;
|
|
case COORDS_SCREEN:
|
|
client_to_screen_rect( win->parent, &reply->window );
|
|
client_to_screen_rect( win->parent, &reply->visible );
|
|
client_to_screen_rect( win->parent, &reply->client );
|
|
break;
|
|
default:
|
|
set_error( STATUS_INVALID_PARAMETER );
|
|
break;
|
|
}
|
|
}
|
|
|
|
|
|
/* get the window text */
|
|
DECL_HANDLER(get_window_text)
|
|
{
|
|
struct window *win = get_window( req->handle );
|
|
|
|
if (win && win->text)
|
|
{
|
|
data_size_t len = strlenW( win->text ) * sizeof(WCHAR);
|
|
if (len > get_reply_max_size()) len = get_reply_max_size();
|
|
set_reply_data( win->text, len );
|
|
}
|
|
}
|
|
|
|
|
|
/* set the window text */
|
|
DECL_HANDLER(set_window_text)
|
|
{
|
|
struct window *win = get_window( req->handle );
|
|
|
|
if (win)
|
|
{
|
|
WCHAR *text = NULL;
|
|
data_size_t len = get_req_data_size() / sizeof(WCHAR);
|
|
if (len)
|
|
{
|
|
if (!(text = mem_alloc( (len+1) * sizeof(WCHAR) ))) return;
|
|
memcpy( text, get_req_data(), len * sizeof(WCHAR) );
|
|
text[len] = 0;
|
|
}
|
|
free( win->text );
|
|
win->text = text;
|
|
}
|
|
}
|
|
|
|
|
|
/* get the coordinates offset between two windows */
|
|
DECL_HANDLER(get_windows_offset)
|
|
{
|
|
struct window *win;
|
|
int mirror_from = 0, mirror_to = 0;
|
|
|
|
reply->x = reply->y = 0;
|
|
if (req->from)
|
|
{
|
|
if (!(win = get_window( req->from ))) return;
|
|
if (win->ex_style & WS_EX_LAYOUTRTL)
|
|
{
|
|
mirror_from = 1;
|
|
reply->x += win->client_rect.right - win->client_rect.left;
|
|
}
|
|
while (win && !is_desktop_window(win))
|
|
{
|
|
reply->x += win->client_rect.left;
|
|
reply->y += win->client_rect.top;
|
|
win = win->parent;
|
|
}
|
|
}
|
|
if (req->to)
|
|
{
|
|
if (!(win = get_window( req->to ))) return;
|
|
if (win->ex_style & WS_EX_LAYOUTRTL)
|
|
{
|
|
mirror_to = 1;
|
|
reply->x -= win->client_rect.right - win->client_rect.left;
|
|
}
|
|
while (win && !is_desktop_window(win))
|
|
{
|
|
reply->x -= win->client_rect.left;
|
|
reply->y -= win->client_rect.top;
|
|
win = win->parent;
|
|
}
|
|
}
|
|
if (mirror_from) reply->x = -reply->x;
|
|
reply->mirror = mirror_from ^ mirror_to;
|
|
}
|
|
|
|
|
|
/* get the visible region of a window */
|
|
DECL_HANDLER(get_visible_region)
|
|
{
|
|
struct region *region;
|
|
struct window *top, *win = get_window( req->window );
|
|
|
|
if (!win) return;
|
|
|
|
top = get_top_clipping_window( win );
|
|
if ((region = get_visible_region( win, req->flags )))
|
|
{
|
|
rectangle_t *data;
|
|
map_win_region_to_screen( win, region );
|
|
data = get_region_data_and_free( region, get_reply_max_size(), &reply->total_size );
|
|
if (data) set_reply_data_ptr( data, reply->total_size );
|
|
}
|
|
reply->top_win = top->handle;
|
|
reply->top_rect = top->visible_rect;
|
|
|
|
if (!is_desktop_window(win))
|
|
{
|
|
reply->win_rect = (req->flags & DCX_WINDOW) ? win->window_rect : win->client_rect;
|
|
client_to_screen_rect( top->parent, &reply->top_rect );
|
|
client_to_screen_rect( win->parent, &reply->win_rect );
|
|
}
|
|
else
|
|
{
|
|
reply->win_rect.left = 0;
|
|
reply->win_rect.top = 0;
|
|
reply->win_rect.right = win->client_rect.right - win->client_rect.left;
|
|
reply->win_rect.bottom = win->client_rect.bottom - win->client_rect.top;
|
|
}
|
|
reply->paint_flags = win->paint_flags & PAINT_CLIENT_FLAGS;
|
|
}
|
|
|
|
|
|
/* get the surface visible region of a window */
|
|
DECL_HANDLER(get_surface_region)
|
|
{
|
|
struct region *region;
|
|
struct window *win = get_window( req->window );
|
|
|
|
if (!win || !is_visible( win )) return;
|
|
|
|
if ((region = get_surface_region( win )))
|
|
{
|
|
rectangle_t *data;
|
|
if (win->parent) map_win_region_to_screen( win->parent, region );
|
|
data = get_region_data_and_free( region, get_reply_max_size(), &reply->total_size );
|
|
if (data) set_reply_data_ptr( data, reply->total_size );
|
|
}
|
|
reply->visible_rect = win->visible_rect;
|
|
if (win->parent) client_to_screen_rect( win->parent, &reply->visible_rect );
|
|
}
|
|
|
|
|
|
/* get the window region */
|
|
DECL_HANDLER(get_window_region)
|
|
{
|
|
rectangle_t *data;
|
|
struct window *win = get_window( req->window );
|
|
|
|
if (!win) return;
|
|
if (!win->win_region) return;
|
|
|
|
if (win->ex_style & WS_EX_LAYOUTRTL)
|
|
{
|
|
struct region *region = create_empty_region();
|
|
|
|
if (!region) return;
|
|
if (!copy_region( region, win->win_region ))
|
|
{
|
|
free_region( region );
|
|
return;
|
|
}
|
|
mirror_region( &win->window_rect, region );
|
|
data = get_region_data_and_free( region, get_reply_max_size(), &reply->total_size );
|
|
}
|
|
else data = get_region_data( win->win_region, get_reply_max_size(), &reply->total_size );
|
|
|
|
if (data) set_reply_data_ptr( data, reply->total_size );
|
|
}
|
|
|
|
|
|
/* set the window region */
|
|
DECL_HANDLER(set_window_region)
|
|
{
|
|
struct region *region = NULL;
|
|
struct window *win = get_window( req->window );
|
|
|
|
if (!win) return;
|
|
|
|
if (get_req_data_size()) /* no data means remove the region completely */
|
|
{
|
|
if (!(region = create_region_from_req_data( get_req_data(), get_req_data_size() )))
|
|
return;
|
|
if (win->ex_style & WS_EX_LAYOUTRTL) mirror_region( &win->window_rect, region );
|
|
}
|
|
set_window_region( win, region, req->redraw );
|
|
}
|
|
|
|
|
|
/* get a window update region */
|
|
DECL_HANDLER(get_update_region)
|
|
{
|
|
rectangle_t *data;
|
|
unsigned int flags = req->flags;
|
|
struct window *from_child = NULL;
|
|
struct window *win = get_window( req->window );
|
|
|
|
reply->flags = 0;
|
|
if (!win) return;
|
|
|
|
if (req->from_child)
|
|
{
|
|
struct window *ptr;
|
|
|
|
if (!(from_child = get_window( req->from_child ))) return;
|
|
|
|
/* make sure from_child is a child of win */
|
|
ptr = from_child;
|
|
while (ptr && ptr != win) ptr = ptr->parent;
|
|
if (!ptr)
|
|
{
|
|
set_error( STATUS_INVALID_PARAMETER );
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (flags & UPDATE_DELAYED_ERASE) /* this means that the previous call didn't erase */
|
|
{
|
|
if (from_child) from_child->paint_flags |= PAINT_DELAYED_ERASE;
|
|
else win->paint_flags |= PAINT_DELAYED_ERASE;
|
|
}
|
|
|
|
reply->flags = get_window_update_flags( win, from_child, flags, &win );
|
|
reply->child = win->handle;
|
|
|
|
if (flags & UPDATE_NOREGION) return;
|
|
|
|
if (win->update_region)
|
|
{
|
|
/* convert update region to screen coordinates */
|
|
struct region *region = create_empty_region();
|
|
|
|
if (!region) return;
|
|
if (!copy_region( region, win->update_region ))
|
|
{
|
|
free_region( region );
|
|
return;
|
|
}
|
|
if ((flags & UPDATE_CLIPCHILDREN) && (win->style & WS_CLIPCHILDREN))
|
|
clip_children( win, NULL, region, win->client_rect.left - win->window_rect.left,
|
|
win->client_rect.top - win->window_rect.top );
|
|
map_win_region_to_screen( win, region );
|
|
if (!(data = get_region_data_and_free( region, get_reply_max_size(),
|
|
&reply->total_size ))) return;
|
|
set_reply_data_ptr( data, reply->total_size );
|
|
}
|
|
|
|
if (reply->flags & (UPDATE_PAINT|UPDATE_INTERNALPAINT)) /* validate everything */
|
|
{
|
|
validate_parents( win );
|
|
validate_whole_window( win );
|
|
}
|
|
else
|
|
{
|
|
if (reply->flags & UPDATE_NONCLIENT) validate_non_client( win );
|
|
if (reply->flags & UPDATE_ERASE)
|
|
{
|
|
win->paint_flags &= ~(PAINT_ERASE | PAINT_DELAYED_ERASE);
|
|
/* desktop window only gets erased, not repainted */
|
|
if (is_desktop_window(win)) validate_whole_window( win );
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/* update the z order of a window so that a given rectangle is fully visible */
|
|
DECL_HANDLER(update_window_zorder)
|
|
{
|
|
rectangle_t tmp, rect = req->rect;
|
|
struct window *ptr, *win = get_window( req->window );
|
|
|
|
if (!win || !win->parent || !is_visible( win )) return; /* nothing to do */
|
|
if (win->ex_style & WS_EX_LAYOUTRTL) mirror_rect( &win->client_rect, &rect );
|
|
offset_rect( &rect, win->client_rect.left, win->client_rect.top );
|
|
|
|
LIST_FOR_EACH_ENTRY( ptr, &win->parent->children, struct window, entry )
|
|
{
|
|
if (ptr == win) break;
|
|
if (!(ptr->style & WS_VISIBLE)) continue;
|
|
if (ptr->ex_style & WS_EX_TRANSPARENT) continue;
|
|
if (ptr->is_layered && (ptr->layered_flags & LWA_COLORKEY)) continue;
|
|
if (!intersect_rect( &tmp, &ptr->visible_rect, &rect )) continue;
|
|
if (ptr->win_region)
|
|
{
|
|
tmp = rect;
|
|
offset_rect( &tmp, -ptr->window_rect.left, -ptr->window_rect.top );
|
|
if (!rect_in_region( ptr->win_region, &tmp )) continue;
|
|
}
|
|
/* found a window obscuring the rectangle, now move win above this one */
|
|
/* making sure to not violate the topmost rule */
|
|
if (!(ptr->ex_style & WS_EX_TOPMOST) || (win->ex_style & WS_EX_TOPMOST))
|
|
{
|
|
list_remove( &win->entry );
|
|
list_add_before( &ptr->entry, &win->entry );
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
|
|
/* mark parts of a window as needing a redraw */
|
|
DECL_HANDLER(redraw_window)
|
|
{
|
|
struct region *region = NULL;
|
|
struct window *win = get_window( req->window );
|
|
|
|
if (!win) return;
|
|
if (!is_visible( win )) return; /* nothing to do */
|
|
|
|
if (req->flags & (RDW_VALIDATE|RDW_INVALIDATE))
|
|
{
|
|
if (get_req_data_size()) /* no data means whole rectangle */
|
|
{
|
|
if (!(region = create_region_from_req_data( get_req_data(), get_req_data_size() )))
|
|
return;
|
|
if (win->ex_style & WS_EX_LAYOUTRTL) mirror_region( &win->client_rect, region );
|
|
}
|
|
}
|
|
|
|
redraw_window( win, region, (req->flags & RDW_INVALIDATE) && (req->flags & RDW_FRAME),
|
|
req->flags );
|
|
if (region) free_region( region );
|
|
}
|
|
|
|
|
|
/* set a window property */
|
|
DECL_HANDLER(set_window_property)
|
|
{
|
|
struct unicode_str name = get_req_unicode_str();
|
|
struct window *win = get_window( req->window );
|
|
|
|
if (!win) return;
|
|
|
|
if (name.len)
|
|
{
|
|
atom_t atom = add_global_atom( NULL, &name );
|
|
if (atom)
|
|
{
|
|
set_property( win, atom, req->data, PROP_TYPE_STRING );
|
|
release_global_atom( NULL, atom );
|
|
}
|
|
}
|
|
else set_property( win, req->atom, req->data, PROP_TYPE_ATOM );
|
|
}
|
|
|
|
|
|
/* remove a window property */
|
|
DECL_HANDLER(remove_window_property)
|
|
{
|
|
struct unicode_str name = get_req_unicode_str();
|
|
struct window *win = get_window( req->window );
|
|
|
|
if (win)
|
|
{
|
|
atom_t atom = name.len ? find_global_atom( NULL, &name ) : req->atom;
|
|
if (atom) reply->data = remove_property( win, atom );
|
|
}
|
|
}
|
|
|
|
|
|
/* get a window property */
|
|
DECL_HANDLER(get_window_property)
|
|
{
|
|
struct unicode_str name = get_req_unicode_str();
|
|
struct window *win = get_window( req->window );
|
|
|
|
if (win)
|
|
{
|
|
atom_t atom = name.len ? find_global_atom( NULL, &name ) : req->atom;
|
|
if (atom) reply->data = get_property( win, atom );
|
|
}
|
|
}
|
|
|
|
|
|
/* get the list of properties of a window */
|
|
DECL_HANDLER(get_window_properties)
|
|
{
|
|
property_data_t *data;
|
|
int i, count, max = get_reply_max_size() / sizeof(*data);
|
|
struct window *win = get_window( req->window );
|
|
|
|
reply->total = 0;
|
|
if (!win) return;
|
|
|
|
for (i = count = 0; i < win->prop_inuse; i++)
|
|
if (win->properties[i].type != PROP_TYPE_FREE) count++;
|
|
reply->total = count;
|
|
|
|
if (count > max) count = max;
|
|
if (!count || !(data = set_reply_data_size( count * sizeof(*data) ))) return;
|
|
|
|
for (i = 0; i < win->prop_inuse && count; i++)
|
|
{
|
|
if (win->properties[i].type == PROP_TYPE_FREE) continue;
|
|
data->atom = win->properties[i].atom;
|
|
data->string = (win->properties[i].type == PROP_TYPE_STRING);
|
|
data->data = win->properties[i].data;
|
|
data++;
|
|
count--;
|
|
}
|
|
}
|
|
|
|
|
|
/* get the new window pointer for a global window, checking permissions */
|
|
/* helper for set_global_windows request */
|
|
static int get_new_global_window( struct window **win, user_handle_t handle )
|
|
{
|
|
if (!handle)
|
|
{
|
|
*win = NULL;
|
|
return 1;
|
|
}
|
|
else if (*win)
|
|
{
|
|
set_error( STATUS_ACCESS_DENIED );
|
|
return 0;
|
|
}
|
|
*win = get_window( handle );
|
|
return (*win != NULL);
|
|
}
|
|
|
|
/* Set/get the global windows */
|
|
DECL_HANDLER(set_global_windows)
|
|
{
|
|
struct window *new_shell_window = shell_window;
|
|
struct window *new_shell_listview = shell_listview;
|
|
struct window *new_progman_window = progman_window;
|
|
struct window *new_taskman_window = taskman_window;
|
|
|
|
reply->old_shell_window = shell_window ? shell_window->handle : 0;
|
|
reply->old_shell_listview = shell_listview ? shell_listview->handle : 0;
|
|
reply->old_progman_window = progman_window ? progman_window->handle : 0;
|
|
reply->old_taskman_window = taskman_window ? taskman_window->handle : 0;
|
|
|
|
if (req->flags & SET_GLOBAL_SHELL_WINDOWS)
|
|
{
|
|
if (!get_new_global_window( &new_shell_window, req->shell_window )) return;
|
|
if (!get_new_global_window( &new_shell_listview, req->shell_listview )) return;
|
|
}
|
|
if (req->flags & SET_GLOBAL_PROGMAN_WINDOW)
|
|
{
|
|
if (!get_new_global_window( &new_progman_window, req->progman_window )) return;
|
|
}
|
|
if (req->flags & SET_GLOBAL_TASKMAN_WINDOW)
|
|
{
|
|
if (!get_new_global_window( &new_taskman_window, req->taskman_window )) return;
|
|
}
|
|
shell_window = new_shell_window;
|
|
shell_listview = new_shell_listview;
|
|
progman_window = new_progman_window;
|
|
taskman_window = new_taskman_window;
|
|
}
|
|
|
|
/* retrieve layered info for a window */
|
|
DECL_HANDLER(get_window_layered_info)
|
|
{
|
|
struct window *win = get_window( req->handle );
|
|
|
|
if (!win) return;
|
|
|
|
if (win->is_layered)
|
|
{
|
|
reply->color_key = win->color_key;
|
|
reply->alpha = win->alpha;
|
|
reply->flags = win->layered_flags;
|
|
}
|
|
else set_win32_error( ERROR_INVALID_WINDOW_HANDLE );
|
|
}
|
|
|
|
|
|
/* set layered info for a window */
|
|
DECL_HANDLER(set_window_layered_info)
|
|
{
|
|
struct window *win = get_window( req->handle );
|
|
|
|
if (!win) return;
|
|
|
|
if (win->ex_style & WS_EX_LAYERED)
|
|
{
|
|
int was_layered = win->is_layered;
|
|
|
|
if (req->flags & LWA_ALPHA) win->alpha = req->alpha;
|
|
else if (!win->is_layered) win->alpha = 0; /* alpha init value is 0 */
|
|
|
|
win->color_key = req->color_key;
|
|
win->layered_flags = req->flags;
|
|
win->is_layered = 1;
|
|
/* repaint since we know now it's not going to use UpdateLayeredWindow */
|
|
if (!was_layered) redraw_window( win, 0, 1, RDW_ALLCHILDREN | RDW_INVALIDATE | RDW_ERASE | RDW_FRAME );
|
|
}
|
|
else set_win32_error( ERROR_INVALID_WINDOW_HANDLE );
|
|
}
|