1794 lines
56 KiB
C
1794 lines
56 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 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 "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 "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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obj_handle_t handle; /* property handle (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 window *first_child; /* first child in Z-order */
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struct window *last_child; /* last child in Z-order */
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struct window *first_unlinked; /* first child not linked in the Z-order list */
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struct window *next; /* next window in Z-order */
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struct window *prev; /* prev window in Z-order */
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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 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 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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void* instance; /* creator instance */
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void* 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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#define PAINT_INTERNAL 0x01 /* internal WM_PAINT pending */
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#define PAINT_ERASE 0x02 /* needs WM_ERASEBKGND */
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#define PAINT_NONCLIENT 0x04 /* needs WM_NCPAINT */
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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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static struct window *top_window; /* top-level (desktop) window */
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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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/* retrieve a pointer to a window from its handle */
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inline static 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_error( STATUS_INVALID_HANDLE );
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return ret;
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}
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/* unlink a window from the tree */
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static void unlink_window( struct window *win )
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{
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struct window *parent = win->parent;
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assert( parent );
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if (win->next) win->next->prev = win->prev;
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else if (parent->last_child == win) parent->last_child = win->prev;
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if (win->prev) win->prev->next = win->next;
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else if (parent->first_child == win) parent->first_child = win->next;
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else if (parent->first_unlinked == win) parent->first_unlinked = win->next;
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}
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/* link a window into the tree (or unlink it if the new parent is NULL) */
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static void link_window( struct window *win, struct window *parent, struct window *previous )
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{
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unlink_window( win ); /* unlink it from the previous location */
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if (parent)
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{
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win->parent = parent;
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if ((win->prev = previous))
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{
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if ((win->next = previous->next)) win->next->prev = win;
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else if (win->parent->last_child == previous) win->parent->last_child = win;
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win->prev->next = win;
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}
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else
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{
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if ((win->next = parent->first_child)) win->next->prev = win;
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else win->parent->last_child = win;
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parent->first_child = win;
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}
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}
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else /* move it to parent unlinked list */
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{
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parent = win->parent;
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if ((win->next = parent->first_unlinked)) win->next->prev = win;
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win->prev = NULL;
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parent->first_unlinked = win;
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}
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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, obj_handle_t handle,
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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].handle = handle;
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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( 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( 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].handle = handle;
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}
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/* remove a window property */
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static obj_handle_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( atom );
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win->properties[i].type = PROP_TYPE_FREE;
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return win->properties[i].handle;
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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 obj_handle_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].handle;
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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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inline static 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( win->properties[i].atom );
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}
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free( win->properties );
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}
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/* destroy a window */
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static void destroy_window( struct window *win )
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{
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assert( win != top_window );
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/* destroy all children */
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while (win->first_child) destroy_window( win->first_child );
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while (win->first_unlinked) destroy_window( win->first_unlinked );
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if (win->thread->queue)
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{
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if (win->update_region) inc_queue_paint_count( win->thread, -1 );
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if (win->paint_flags & PAINT_INTERNAL) inc_queue_paint_count( win->thread, -1 );
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queue_cleanup_window( win->thread, win->handle );
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}
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/* reset global window pointers, if the corresponding window is destroyed */
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if (win == shell_window) shell_window = NULL;
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if (win == shell_listview) shell_listview = NULL;
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if (win == progman_window) progman_window = NULL;
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if (win == taskman_window) taskman_window = NULL;
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free_user_handle( win->handle );
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destroy_properties( win );
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unlink_window( win );
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if (win->win_region) free_region( win->win_region );
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if (win->update_region) free_region( win->update_region );
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release_class( win->class );
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if (win->text) free( win->text );
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memset( win, 0x55, sizeof(*win) + win->nb_extra_bytes - 1 );
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free( win );
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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, void *instance )
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{
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int extra_bytes;
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struct window *win;
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struct window_class *class = grab_class( current->process, atom, instance, &extra_bytes );
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if (!class) return NULL;
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win = mem_alloc( sizeof(*win) + extra_bytes - 1 );
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if (!win)
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{
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release_class( class );
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return NULL;
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}
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if (!(win->handle = alloc_user_handle( win, USER_WINDOW )))
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{
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release_class( class );
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free( win );
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return NULL;
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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->first_child = NULL;
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win->last_child = NULL;
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win->first_unlinked = NULL;
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win->thread = current;
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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 = NULL;
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win->user_data = NULL;
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win->text = NULL;
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win->paint_flags = 0;
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win->prop_inuse = 0;
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win->prop_alloc = 0;
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win->properties = NULL;
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win->nb_extra_bytes = extra_bytes;
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memset( win->extra_bytes, 0, extra_bytes );
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if (parent) /* put it on parent unlinked list */
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{
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if ((win->next = parent->first_unlinked)) win->next->prev = win;
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win->prev = NULL;
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parent->first_unlinked = win;
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}
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else win->next = win->prev = NULL;
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/* if parent belongs to a different thread, attach the two threads */
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if (parent && parent->thread && parent->thread != current)
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attach_thread_input( current, parent->thread );
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return win;
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}
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/* destroy all windows belonging to a given thread */
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void destroy_thread_windows( struct thread *thread )
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{
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user_handle_t handle = 0;
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struct window *win;
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while ((win = next_user_handle( &handle, USER_WINDOW )))
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{
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if (win->thread != thread) continue;
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destroy_window( win );
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}
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}
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/* check whether child is a descendant of parent */
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int is_child_window( user_handle_t parent, user_handle_t child )
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{
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struct window *child_ptr = get_user_object( child, USER_WINDOW );
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struct window *parent_ptr = get_user_object( parent, USER_WINDOW );
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if (!child_ptr || !parent_ptr) return 0;
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while (child_ptr->parent)
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{
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if (child_ptr->parent == parent_ptr) return 1;
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child_ptr = child_ptr->parent;
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}
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return 0;
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}
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/* check whether window is a top-level window */
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int is_top_level_window( user_handle_t window )
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{
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struct window *win = get_user_object( window, USER_WINDOW );
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return (win && win->parent == top_window);
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}
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/* make a window active if possible */
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int make_window_active( user_handle_t window )
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{
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struct window *owner, *win = get_window( window );
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if (!win) return 0;
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/* set last active for window and its owner */
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win->last_active = win->handle;
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if ((owner = get_user_object( win->owner, USER_WINDOW ))) owner->last_active = win->handle;
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return 1;
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}
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/* increment (or decrement) the window paint count */
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static inline void inc_window_paint_count( struct window *win, int incr )
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{
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if (win->thread) inc_queue_paint_count( win->thread, incr );
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}
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/* check if window and all its ancestors are visible */
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static int is_visible( const struct window *win )
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{
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while (win && win != top_window)
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{
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if (!(win->style & WS_VISIBLE)) return 0;
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win = win->parent;
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/* if parent is minimized children are not visible */
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if (win && (win->style & WS_MINIMIZE)) return 0;
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}
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return 1;
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}
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/* same as is_visible but takes a window handle */
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int is_window_visible( user_handle_t window )
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{
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struct window *win = get_user_object( window, USER_WINDOW );
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if (!win) return 0;
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return is_visible( win );
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}
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/* check if point is inside the window */
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static inline int is_point_in_window( struct window *win, int x, int y )
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{
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if (!(win->style & WS_VISIBLE)) return 0; /* not visible */
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if ((win->style & (WS_POPUP|WS_CHILD|WS_DISABLED)) == (WS_CHILD|WS_DISABLED))
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return 0; /* disabled child */
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if ((win->ex_style & (WS_EX_LAYERED|WS_EX_TRANSPARENT)) == (WS_EX_LAYERED|WS_EX_TRANSPARENT))
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return 0; /* transparent */
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if (x < win->window_rect.left || x >= win->window_rect.right ||
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y < win->window_rect.top || y >= win->window_rect.bottom)
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return 0; /* not in window */
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if (win->win_region &&
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!point_in_region( win->win_region, x - win->window_rect.left, y - win->window_rect.top ))
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return 0; /* not in window region */
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return 1;
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}
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/* find child of 'parent' that contains the given point (in parent-relative coords) */
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static struct window *child_window_from_point( struct window *parent, int x, int y )
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{
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struct window *ptr;
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for (ptr = parent->first_child; ptr; ptr = ptr->next)
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{
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if (!is_point_in_window( ptr, x, y )) continue; /* skip it */
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/* if window is minimized or disabled, return at once */
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if (ptr->style & (WS_MINIMIZE|WS_DISABLED)) return ptr;
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/* if point is not in client area, return at once */
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if (x < ptr->client_rect.left || x >= ptr->client_rect.right ||
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y < ptr->client_rect.top || y >= ptr->client_rect.bottom)
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return ptr;
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return child_window_from_point( ptr, x - ptr->client_rect.left, y - ptr->client_rect.top );
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}
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return parent; /* not found any child */
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}
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/* find all children of 'parent' that contain the given point */
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static int get_window_children_from_point( struct window *parent, int x, int y,
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struct user_handle_array *array )
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{
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struct window *ptr;
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for (ptr = parent->first_child; ptr; ptr = ptr->next)
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{
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if (!is_point_in_window( ptr, x, y )) continue; /* skip it */
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/* if point is in client area, and window is not minimized or disabled, check children */
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if (!(ptr->style & (WS_MINIMIZE|WS_DISABLED)) &&
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x >= ptr->client_rect.left && x < ptr->client_rect.right &&
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y >= ptr->client_rect.top && y < ptr->client_rect.bottom)
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{
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if (!get_window_children_from_point( ptr, x - ptr->client_rect.left,
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y - ptr->client_rect.top, array ))
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return 0;
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}
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/* now add window to the array */
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if (!add_handle_to_array( array, ptr->handle )) return 0;
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}
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return 1;
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}
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/* find window containing point (in absolute coords) */
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user_handle_t window_from_point( int x, int y )
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{
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struct window *ret;
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|
|
if (!top_window) return 0;
|
|
ret = child_window_from_point( top_window, x, y );
|
|
return ret->handle;
|
|
}
|
|
|
|
/* 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 && ptr != top_window; 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 (!get_window_children_from_point( top, x - top->client_rect.left,
|
|
y - top->client_rect.top, 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;
|
|
|
|
for (ptr = parent->first_child; ptr && !ret; ptr = ptr->next)
|
|
{
|
|
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 && (ret->ex_style & WS_EX_TRANSPARENT))
|
|
{
|
|
/* transparent window, check for non-transparent sibling to paint first */
|
|
for (ptr = ret->next; ptr; ptr = ptr->next)
|
|
{
|
|
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 */
|
|
user_handle_t find_window_to_repaint( user_handle_t parent, struct thread *thread )
|
|
{
|
|
struct window *ptr, *win = find_child_to_repaint( top_window, thread );
|
|
|
|
if (win)
|
|
{
|
|
if (!parent) return win->handle;
|
|
/* check that it is a child of the specified parent */
|
|
for (ptr = win; ptr; ptr = ptr->parent)
|
|
if (ptr->handle == parent) return win->handle;
|
|
/* otherwise don't return any window, we don't repaint a child before its parent */
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
/* 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;
|
|
}
|
|
|
|
|
|
/* 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;
|
|
for (ptr = parent->first_child; ptr && ptr != last; ptr = ptr->next)
|
|
{
|
|
if (!(ptr->style & WS_VISIBLE)) continue;
|
|
if (ptr->ex_style & WS_EX_TRANSPARENT) continue;
|
|
set_region_rect( tmp, &ptr->window_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;
|
|
}
|
|
|
|
|
|
/* 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;
|
|
|
|
rect.left = max( win->window_rect.left, win->client_rect.left );
|
|
rect.top = max( win->window_rect.top, win->client_rect.top );
|
|
rect.right = min( win->window_rect.right, win->client_rect.right );
|
|
rect.bottom = min( win->window_rect.bottom, win->client_rect.bottom );
|
|
set_region_rect( region, &rect );
|
|
}
|
|
|
|
|
|
/* compute the visible region of a window */
|
|
static struct region *get_visible_region( struct window *win, struct window *top,
|
|
unsigned int flags )
|
|
{
|
|
struct region *tmp, *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 != top && win->parent)
|
|
{
|
|
set_region_client_rect( region, win->parent );
|
|
offset_region( region, -win->parent->client_rect.left, -win->parent->client_rect.top );
|
|
offset_x = win->client_rect.left;
|
|
offset_y = win->client_rect.top;
|
|
}
|
|
else if (flags & DCX_WINDOW)
|
|
{
|
|
set_region_rect( region, &win->window_rect );
|
|
if (win->win_region && !intersect_window_region( region, win )) goto error;
|
|
offset_x = win->window_rect.left;
|
|
offset_y = win->window_rect.top;
|
|
}
|
|
else
|
|
{
|
|
set_region_client_rect( region, win );
|
|
if (win->win_region && !intersect_window_region( region, win )) goto error;
|
|
offset_x = win->client_rect.left;
|
|
offset_y = win->client_rect.top;
|
|
}
|
|
offset_region( region, -offset_x, -offset_y );
|
|
|
|
/* clip children */
|
|
|
|
if (flags & DCX_CLIPCHILDREN)
|
|
{
|
|
if (!clip_children( win, NULL, region,
|
|
offset_x - win->client_rect.left,
|
|
offset_y - win->client_rect.top )) goto error;
|
|
}
|
|
|
|
/* clip siblings of ancestors */
|
|
|
|
if (top && top != win && (tmp = create_empty_region()) != NULL)
|
|
{
|
|
offset_region( region, offset_x, offset_y ); /* make it relative to parent */
|
|
while (win != top && win->parent)
|
|
{
|
|
if (win->style & WS_CLIPSIBLINGS)
|
|
{
|
|
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;
|
|
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 ))
|
|
{
|
|
free_region( tmp );
|
|
goto error;
|
|
}
|
|
if (!intersect_region( region, region, tmp ))
|
|
{
|
|
free_region( tmp );
|
|
goto error;
|
|
}
|
|
if (is_region_empty( region )) break;
|
|
}
|
|
offset_region( region, -offset_x, -offset_y ); /* make it relative to target window again */
|
|
free_region( tmp );
|
|
}
|
|
return region;
|
|
|
|
error:
|
|
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;
|
|
return win->class;
|
|
}
|
|
|
|
/* 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 )
|
|
{
|
|
struct region *tmp = create_empty_region();
|
|
|
|
if (!tmp) return NULL;
|
|
|
|
/* get bounding rect in client coords */
|
|
if (frame) set_region_rect( tmp, &win->window_rect );
|
|
else set_region_client_rect( tmp, win );
|
|
offset_region( tmp, -win->client_rect.left, -win->client_rect.top );
|
|
|
|
/* intersect specified region with bounding rect */
|
|
if (region && !intersect_region( tmp, region, tmp )) goto done;
|
|
if (is_region_empty( tmp )) goto done;
|
|
|
|
/* map it 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 );
|
|
win->paint_flags &= ~(PAINT_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;
|
|
}
|
|
|
|
|
|
/* 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 the update region of a window on all parents; helper for redraw_window */
|
|
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 && win->parent != top_window)
|
|
{
|
|
/* 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;
|
|
}
|
|
}
|
|
|
|
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 );
|
|
}
|
|
|
|
if (flags & RDW_UPDATENOW)
|
|
{
|
|
validate_parents( win );
|
|
flags &= ~RDW_UPDATENOW;
|
|
}
|
|
|
|
/* 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;
|
|
|
|
for (child = win->first_child; child; child = child->next)
|
|
{
|
|
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) ret |= UPDATE_PAINT;
|
|
}
|
|
if (flags & UPDATE_INTERNALPAINT)
|
|
{
|
|
if (win->paint_flags & PAINT_INTERNAL) ret |= UPDATE_INTERNALPAINT;
|
|
}
|
|
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, unsigned int flags,
|
|
struct window **child )
|
|
{
|
|
struct window *ptr;
|
|
unsigned int ret = 0;
|
|
|
|
for (ptr = win->first_child; ptr && !ret; ptr = ptr->next)
|
|
{
|
|
if (!(ptr->style & WS_VISIBLE)) continue;
|
|
if ((ret = get_update_flags( ptr, flags )) != 0)
|
|
{
|
|
*child = ptr;
|
|
break;
|
|
}
|
|
if (ptr->style & WS_MINIMIZE) continue;
|
|
|
|
/* 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_NOCHILDREN) &&
|
|
((flags & UPDATE_ALLCHILDREN) || (ptr->style & WS_CLIPCHILDREN)))
|
|
ret = get_child_update_flags( ptr, flags, child );
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
|
|
/* expose a region of a window, looking for the top most parent that needs to be exposed */
|
|
/* the region is in window coordinates */
|
|
static void expose_window( struct window *win, struct window *top, struct region *region )
|
|
{
|
|
struct window *parent, *ptr;
|
|
int offset_x, offset_y;
|
|
|
|
/* find the top most parent that doesn't clip either siblings or children */
|
|
for (parent = ptr = win; ptr != top; ptr = ptr->parent)
|
|
{
|
|
if (!(ptr->style & WS_CLIPCHILDREN)) parent = ptr;
|
|
if (!(ptr->style & WS_CLIPSIBLINGS)) parent = ptr->parent;
|
|
}
|
|
if (parent == win && parent != top && win->parent)
|
|
parent = win->parent; /* always go up at least one level if possible */
|
|
|
|
offset_x = win->window_rect.left - win->client_rect.left;
|
|
offset_y = win->window_rect.top - win->client_rect.top;
|
|
for (ptr = win; ptr != parent; ptr = ptr->parent)
|
|
{
|
|
offset_x += ptr->client_rect.left;
|
|
offset_y += ptr->client_rect.top;
|
|
}
|
|
offset_region( region, offset_x, offset_y );
|
|
redraw_window( parent, region, 0, RDW_INVALIDATE | RDW_ERASE | RDW_ALLCHILDREN );
|
|
offset_region( region, -offset_x, -offset_y );
|
|
}
|
|
|
|
|
|
/* set the window and client rectangles, updating the update region if necessary */
|
|
static void set_window_pos( struct window *win, struct window *top, struct window *previous,
|
|
unsigned int swp_flags, const rectangle_t *window_rect,
|
|
const rectangle_t *client_rect, const rectangle_t *valid_rects )
|
|
{
|
|
struct region *old_vis_rgn, *new_vis_rgn;
|
|
const rectangle_t old_window_rect = win->window_rect;
|
|
const rectangle_t old_client_rect = win->client_rect;
|
|
|
|
/* if the window is not visible, everything is easy */
|
|
|
|
if ((win->parent && !is_visible( win->parent )) ||
|
|
(!(win->style & WS_VISIBLE) && !(swp_flags & SWP_SHOWWINDOW)))
|
|
{
|
|
win->window_rect = *window_rect;
|
|
win->client_rect = *client_rect;
|
|
if (!(swp_flags & SWP_NOZORDER)) link_window( win, win->parent, previous );
|
|
if (swp_flags & SWP_SHOWWINDOW) win->style |= WS_VISIBLE;
|
|
else if (swp_flags & SWP_HIDEWINDOW) win->style &= ~WS_VISIBLE;
|
|
return;
|
|
}
|
|
|
|
if (!(old_vis_rgn = get_visible_region( win, top, DCX_WINDOW ))) return;
|
|
|
|
/* set the new window info before invalidating anything */
|
|
|
|
win->window_rect = *window_rect;
|
|
win->client_rect = *client_rect;
|
|
if (!(swp_flags & SWP_NOZORDER)) link_window( win, win->parent, previous );
|
|
if (swp_flags & SWP_SHOWWINDOW) win->style |= WS_VISIBLE;
|
|
else if (swp_flags & SWP_HIDEWINDOW) win->style &= ~WS_VISIBLE;
|
|
|
|
if (!(new_vis_rgn = get_visible_region( win, top, DCX_WINDOW )))
|
|
{
|
|
free_region( old_vis_rgn );
|
|
clear_error(); /* ignore error since the window info has been modified already */
|
|
return;
|
|
}
|
|
|
|
/* expose anything revealed by the change */
|
|
|
|
if (!(swp_flags & SWP_NOREDRAW))
|
|
{
|
|
offset_region( old_vis_rgn, old_window_rect.left - window_rect->left,
|
|
old_window_rect.top - window_rect->top );
|
|
if (xor_region( new_vis_rgn, old_vis_rgn, new_vis_rgn ))
|
|
expose_window( win, top, new_vis_rgn );
|
|
}
|
|
free_region( old_vis_rgn );
|
|
|
|
if (!(win->style & WS_VISIBLE))
|
|
{
|
|
/* clear the update region since the window is no longer visible */
|
|
validate_whole_window( win );
|
|
goto done;
|
|
}
|
|
|
|
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_FRAMECHANGED) ||
|
|
memcmp( window_rect, &old_window_rect, sizeof(old_window_rect) ) ||
|
|
memcmp( client_rect, &old_client_rect, sizeof(old_client_rect) ))
|
|
{
|
|
struct region *tmp = create_empty_region();
|
|
|
|
if (tmp)
|
|
{
|
|
/* subtract the valid portion of client rect from the total region */
|
|
if (!memcmp( client_rect, &old_client_rect, sizeof(old_client_rect) ))
|
|
set_region_rect( tmp, client_rect );
|
|
else if (valid_rects)
|
|
set_region_rect( tmp, &valid_rects[0] );
|
|
|
|
set_region_rect( new_vis_rgn, window_rect );
|
|
if (subtract_region( tmp, new_vis_rgn, tmp ))
|
|
{
|
|
offset_region( tmp, -client_rect->left, -client_rect->top );
|
|
redraw_window( win, tmp, 1, RDW_INVALIDATE | RDW_ERASE | RDW_FRAME | RDW_ALLCHILDREN );
|
|
}
|
|
free_region( tmp );
|
|
}
|
|
}
|
|
|
|
done:
|
|
free_region( new_vis_rgn );
|
|
clear_error(); /* we ignore out of memory errors once the new rects have been set */
|
|
}
|
|
|
|
|
|
/* create a window */
|
|
DECL_HANDLER(create_window)
|
|
{
|
|
struct window *win;
|
|
|
|
reply->handle = 0;
|
|
if (!req->parent) /* return desktop window */
|
|
{
|
|
if (!top_window)
|
|
{
|
|
if (!(top_window = create_window( NULL, NULL, req->atom, req->instance ))) return;
|
|
top_window->thread = NULL; /* no thread owns the desktop */
|
|
top_window->style = WS_POPUP | WS_VISIBLE | WS_CLIPSIBLINGS | WS_CLIPCHILDREN;
|
|
}
|
|
win = top_window;
|
|
}
|
|
else
|
|
{
|
|
struct window *parent, *owner = NULL;
|
|
|
|
if (!(parent = get_window( req->parent ))) return;
|
|
if (req->owner && !(owner = get_window( req->owner ))) return;
|
|
if (owner == top_window) owner = NULL;
|
|
else if (owner && parent != top_window)
|
|
{
|
|
/* an owned window must be created as top-level */
|
|
set_error( STATUS_ACCESS_DENIED );
|
|
return;
|
|
}
|
|
if (!(win = create_window( parent, owner, req->atom, req->instance ))) return;
|
|
}
|
|
reply->handle = win->handle;
|
|
reply->extra = win->nb_extra_bytes;
|
|
reply->class_ptr = get_class_client_ptr( win->class );
|
|
}
|
|
|
|
|
|
/* link a window into the tree */
|
|
DECL_HANDLER(link_window)
|
|
{
|
|
struct window *win, *parent = NULL, *previous = NULL;
|
|
|
|
if (!(win = get_window( req->handle ))) return;
|
|
if (req->parent && !(parent = get_window( req->parent ))) return;
|
|
|
|
if (win == top_window)
|
|
{
|
|
set_error( STATUS_INVALID_PARAMETER );
|
|
return;
|
|
}
|
|
reply->full_parent = parent ? parent->handle : 0;
|
|
if (parent && req->previous)
|
|
{
|
|
if (req->previous == (user_handle_t)1) /* special case: HWND_BOTTOM */
|
|
{
|
|
previous = parent->last_child;
|
|
if (previous == win) return; /* nothing to do */
|
|
}
|
|
else
|
|
{
|
|
if (!(previous = get_window( req->previous ))) return;
|
|
/* previous must be a child of parent, and not win itself */
|
|
if (previous->parent != parent || previous == win)
|
|
{
|
|
set_error( STATUS_INVALID_PARAMETER );
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
link_window( win, parent, previous );
|
|
}
|
|
|
|
|
|
/* destroy a window */
|
|
DECL_HANDLER(destroy_window)
|
|
{
|
|
struct window *win = get_window( req->handle );
|
|
if (win)
|
|
{
|
|
if (win != top_window) destroy_window( win );
|
|
else set_error( STATUS_ACCESS_DENIED );
|
|
}
|
|
}
|
|
|
|
|
|
/* set a window owner */
|
|
DECL_HANDLER(set_window_owner)
|
|
{
|
|
struct window *win = get_window( req->handle );
|
|
struct window *owner = NULL;
|
|
|
|
if (!win) return;
|
|
if (req->owner && !(owner = get_window( req->owner ))) return;
|
|
if (win == top_window)
|
|
{
|
|
set_error( STATUS_ACCESS_DENIED );
|
|
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 );
|
|
|
|
reply->full_handle = 0;
|
|
reply->tid = reply->pid = 0;
|
|
if (win)
|
|
{
|
|
reply->full_handle = win->handle;
|
|
reply->last_active = win->handle;
|
|
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 = get_class_atom( win->class );
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/* set some information in a window */
|
|
DECL_HANDLER(set_window_info)
|
|
{
|
|
struct window *win = get_window( req->handle );
|
|
|
|
if (!win) return;
|
|
if (req->flags && win == top_window)
|
|
{
|
|
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) win->ex_style = req->ex_style;
|
|
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_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;
|
|
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 *ptr, *parent = get_window( req->parent );
|
|
int total = 0;
|
|
user_handle_t *data;
|
|
size_t len;
|
|
|
|
if (parent)
|
|
for (ptr = parent->first_child, total = 0; ptr; ptr = ptr->next)
|
|
{
|
|
if (req->atom && get_class_atom(ptr->class) != req->atom) continue;
|
|
if (req->tid && get_thread_id(ptr->thread) != req->tid) continue;
|
|
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 = parent->first_child; ptr && len; ptr = ptr->next)
|
|
{
|
|
if (req->atom && get_class_atom(ptr->class) != req->atom) continue;
|
|
if (req->tid && get_thread_id(ptr->thread) != req->tid) continue;
|
|
*data++ = ptr->handle;
|
|
len -= sizeof(*data);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/* 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 );
|
|
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 *win = get_window( req->handle );
|
|
|
|
if (!win) return;
|
|
|
|
if (win->parent)
|
|
{
|
|
struct window *parent = win->parent;
|
|
reply->parent = parent->handle;
|
|
reply->owner = win->owner;
|
|
reply->next_sibling = win->next ? win->next->handle : 0;
|
|
reply->prev_sibling = win->prev ? win->prev->handle : 0;
|
|
reply->first_sibling = parent->first_child ? parent->first_child->handle : 0;
|
|
reply->last_sibling = parent->last_child ? parent->last_child->handle : 0;
|
|
}
|
|
else
|
|
{
|
|
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 = win->first_child ? win->first_child->handle : 0;
|
|
reply->last_child = win->last_child ? win->last_child->handle : 0;
|
|
}
|
|
|
|
|
|
/* set the position and Z order of a window */
|
|
DECL_HANDLER(set_window_pos)
|
|
{
|
|
const rectangle_t *valid_rects = NULL;
|
|
struct window *previous = NULL;
|
|
struct window *top = top_window;
|
|
struct window *win = get_window( req->handle );
|
|
unsigned int flags = req->flags;
|
|
|
|
if (!win) return;
|
|
if (!win->parent) flags |= SWP_NOZORDER; /* no Z order for the desktop */
|
|
|
|
if (req->top_win)
|
|
{
|
|
if (!(top = get_window( req->top_win ))) return;
|
|
}
|
|
|
|
if (!(flags & SWP_NOZORDER))
|
|
{
|
|
if (!req->previous) /* special case: HWND_TOP */
|
|
{
|
|
if (win->parent->first_child == win) flags |= SWP_NOZORDER;
|
|
}
|
|
else if (req->previous == (user_handle_t)1) /* special case: HWND_BOTTOM */
|
|
{
|
|
previous = win->parent->last_child;
|
|
}
|
|
else
|
|
{
|
|
if (!(previous = get_window( req->previous ))) return;
|
|
/* previous must be a sibling */
|
|
if (previous->parent != win->parent)
|
|
{
|
|
set_error( STATUS_INVALID_PARAMETER );
|
|
return;
|
|
}
|
|
}
|
|
if (previous == win) flags |= SWP_NOZORDER; /* nothing to do */
|
|
}
|
|
|
|
/* 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;
|
|
}
|
|
|
|
if (get_req_data_size() >= 2 * sizeof(rectangle_t)) valid_rects = get_req_data();
|
|
|
|
set_window_pos( win, top, previous, flags, &req->window, &req->client, valid_rects );
|
|
reply->new_style = win->style;
|
|
}
|
|
|
|
|
|
/* get the window and client rectangles of a window */
|
|
DECL_HANDLER(get_window_rectangles)
|
|
{
|
|
struct window *win = get_window( req->handle );
|
|
|
|
if (win)
|
|
{
|
|
reply->window = win->window_rect;
|
|
reply->client = win->client_rect;
|
|
}
|
|
}
|
|
|
|
|
|
/* get the window text */
|
|
DECL_HANDLER(get_window_text)
|
|
{
|
|
struct window *win = get_window( req->handle );
|
|
|
|
if (win && win->text)
|
|
{
|
|
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;
|
|
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;
|
|
}
|
|
if (win->text) free( win->text );
|
|
win->text = text;
|
|
}
|
|
}
|
|
|
|
|
|
/* get the coordinates offset between two windows */
|
|
DECL_HANDLER(get_windows_offset)
|
|
{
|
|
struct window *win;
|
|
|
|
reply->x = reply->y = 0;
|
|
if (req->from)
|
|
{
|
|
if (!(win = get_window( req->from ))) return;
|
|
while (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;
|
|
while (win)
|
|
{
|
|
reply->x -= win->client_rect.left;
|
|
reply->y -= win->client_rect.top;
|
|
win = win->parent;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/* get the visible region of a window */
|
|
DECL_HANDLER(get_visible_region)
|
|
{
|
|
struct region *region;
|
|
struct window *win = get_window( req->window );
|
|
struct window *top = NULL;
|
|
|
|
if (!win) return;
|
|
if (req->top_win && !(top = get_window( req->top_win ))) return;
|
|
|
|
if ((region = get_visible_region( win, top, req->flags )))
|
|
{
|
|
rectangle_t *data = get_region_data_and_free( region, get_reply_max_size(), &reply->total_size );
|
|
if (data) set_reply_data_ptr( data, reply->total_size );
|
|
}
|
|
}
|
|
|
|
|
|
/* get the window region */
|
|
DECL_HANDLER(get_window_region)
|
|
{
|
|
struct window *win = get_window( req->window );
|
|
|
|
if (!win) return;
|
|
|
|
if (win->win_region)
|
|
{
|
|
rectangle_t *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->win_region) free_region( win->win_region );
|
|
win->win_region = region;
|
|
}
|
|
|
|
|
|
/* get a window update region */
|
|
DECL_HANDLER(get_update_region)
|
|
{
|
|
rectangle_t *data;
|
|
unsigned int flags = req->flags;
|
|
struct window *win = get_window( req->window );
|
|
|
|
reply->flags = 0;
|
|
if (!win || !is_visible( win )) return;
|
|
|
|
if ((flags & UPDATE_NONCLIENT) && !(flags & (UPDATE_PAINT|UPDATE_INTERNALPAINT)))
|
|
{
|
|
/* non-client painting must be delayed if one of the parents is going to
|
|
* be repainted and doesn't clip children */
|
|
struct window *ptr;
|
|
|
|
for (ptr = win->parent; ptr && ptr != top_window; ptr = ptr->parent)
|
|
{
|
|
if (!(ptr->style & WS_CLIPCHILDREN) && win_needs_repaint( ptr ))
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (!(reply->flags = get_update_flags( win, flags )))
|
|
{
|
|
/* if window doesn't need any repaint, check the children */
|
|
if (!(flags & UPDATE_NOCHILDREN) &&
|
|
((flags & UPDATE_ALLCHILDREN) || (win->style & WS_CLIPCHILDREN)))
|
|
{
|
|
reply->flags = get_child_update_flags( win, flags, &win );
|
|
}
|
|
}
|
|
|
|
reply->child = win->handle;
|
|
|
|
if (flags & UPDATE_NOREGION) return;
|
|
|
|
if (win->update_region)
|
|
{
|
|
if (!(data = get_region_data( win->update_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_whole_window( win );
|
|
}
|
|
else
|
|
{
|
|
if (reply->flags & UPDATE_NONCLIENT) validate_non_client( win );
|
|
if (reply->flags & UPDATE_ERASE)
|
|
{
|
|
win->paint_flags &= ~PAINT_ERASE;
|
|
/* desktop window only gets erased, not repainted */
|
|
if (win == top_window) validate_whole_window( win );
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/* 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;
|
|
}
|
|
}
|
|
|
|
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 window *win = get_window( req->window );
|
|
|
|
if (win) set_property( win, req->atom, req->handle,
|
|
req->string ? PROP_TYPE_STRING : PROP_TYPE_ATOM );
|
|
}
|
|
|
|
|
|
/* remove a window property */
|
|
DECL_HANDLER(remove_window_property)
|
|
{
|
|
struct window *win = get_window( req->window );
|
|
reply->handle = 0;
|
|
if (win) reply->handle = remove_property( win, req->atom );
|
|
}
|
|
|
|
|
|
/* get a window property */
|
|
DECL_HANDLER(get_window_property)
|
|
{
|
|
struct window *win = get_window( req->window );
|
|
reply->handle = 0;
|
|
if (win) reply->handle = get_property( win, req->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->handle = win->properties[i].handle;
|
|
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;
|
|
}
|