916 lines
27 KiB
C
916 lines
27 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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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 */
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rectangle_t client_rect; /* client rectangle */
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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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int paint_count; /* count of pending paints for this window */
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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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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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/* 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->paint_count) inc_queue_paint_count( win->thread, -win->paint_count );
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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->text) free( win->text );
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memset( win, 0x55, sizeof(*win) );
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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, atom_t atom,
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int extra_bytes )
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{
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struct window *win = mem_alloc( sizeof(*win) + extra_bytes - 1 );
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if (!win) return NULL;
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if (!(win->handle = alloc_user_handle( win, USER_WINDOW )))
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{
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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->atom = atom;
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win->last_active = win->handle;
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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_count = 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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/* 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 (!(ptr->style & WS_VISIBLE)) continue; /* not visible -> skip */
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if ((ptr->style & (WS_POPUP|WS_CHILD|WS_DISABLED)) == (WS_CHILD|WS_DISABLED))
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continue; /* disabled child -> skip */
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if ((ptr->ex_style & (WS_EX_LAYERED|WS_EX_TRANSPARENT)) == (WS_EX_LAYERED|WS_EX_TRANSPARENT))
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continue; /* transparent -> skip */
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if (x < ptr->window_rect.left || x >= ptr->window_rect.right ||
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y < ptr->window_rect.top || y >= ptr->window_rect.bottom)
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continue; /* not in window -> skip */
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/* FIXME: check window region here */
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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 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;
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ret = child_window_from_point( top_window, x, y );
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return ret->handle;
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}
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/* return the thread owning a window */
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struct thread *get_window_thread( user_handle_t handle )
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{
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struct window *win = get_user_object( handle, USER_WINDOW );
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if (!win || !win->thread) return NULL;
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return (struct thread *)grab_object( win->thread );
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}
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/* find a child of the specified window that needs repainting */
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static struct window *find_child_to_repaint( struct window *parent, struct thread *thread )
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{
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struct window *ptr, *ret = NULL;
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for (ptr = parent->first_child; ptr && !ret; ptr = ptr->next)
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{
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if (!(ptr->style & WS_VISIBLE)) continue;
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if (ptr->paint_count && ptr->thread == thread)
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ret = ptr;
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else /* explore its children */
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ret = find_child_to_repaint( ptr, thread );
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}
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if (ret && (ret->ex_style & WS_EX_TRANSPARENT))
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{
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/* transparent window, check for non-transparent sibling to paint first */
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for (ptr = ret->next; ptr; ptr = ptr->next)
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{
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if (!(ptr->style & WS_VISIBLE)) continue;
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if (ptr->ex_style & WS_EX_TRANSPARENT) continue;
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if (ptr->paint_count && ptr->thread == thread) return ptr;
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}
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}
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return ret;
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}
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/* find a window that needs repainting */
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user_handle_t find_window_to_repaint( user_handle_t parent, struct thread *thread )
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{
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struct window *win = parent ? get_window( parent ) : top_window;
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if (!win || !(win->style & WS_VISIBLE)) return 0;
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if (!win->paint_count || win->thread != thread)
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win = find_child_to_repaint( win, thread );
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return win ? win->handle : 0;
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}
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/* create a window */
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DECL_HANDLER(create_window)
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{
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reply->handle = 0;
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if (req->extra < 0 || req->extra > 4096) /* don't allow stupid values here */
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{
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set_error( STATUS_INVALID_PARAMETER );
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return;
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}
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if (!req->parent) /* return desktop window */
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{
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if (!top_window)
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{
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if (!(top_window = create_window( NULL, NULL, req->atom, req->extra ))) return;
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top_window->thread = NULL; /* no thread owns the desktop */
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top_window->style = WS_POPUP | WS_VISIBLE | WS_CLIPSIBLINGS | WS_CLIPCHILDREN;
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}
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reply->handle = top_window->handle;
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}
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else
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{
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struct window *win, *parent, *owner = NULL;
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if (!(parent = get_window( req->parent ))) return;
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if (req->owner && !(owner = get_window( req->owner ))) return;
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if (owner == top_window) owner = NULL;
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else if (owner && parent != top_window)
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{
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/* an owned window must be created as top-level */
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set_error( STATUS_ACCESS_DENIED );
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return;
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}
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if (!(win = create_window( parent, owner, req->atom, req->extra ))) return;
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reply->handle = win->handle;
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}
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}
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|
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/* link a window into the tree */
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DECL_HANDLER(link_window)
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{
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struct window *win, *parent = NULL, *previous = NULL;
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|
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if (!(win = get_window( req->handle ))) return;
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if (req->parent && !(parent = get_window( req->parent ))) return;
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|
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if (win == top_window)
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{
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set_error( STATUS_INVALID_PARAMETER );
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return;
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}
|
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reply->full_parent = parent ? parent->handle : 0;
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if (parent && req->previous)
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{
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if (req->previous == (user_handle_t)1) /* special case: HWND_BOTTOM */
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{
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previous = parent->last_child;
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if (previous == win) return; /* nothing to do */
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}
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else
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{
|
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if (!(previous = get_window( req->previous ))) return;
|
|
/* previous must be a child of parent, and not win itself */
|
|
if (previous->parent != parent || previous == win)
|
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{
|
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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 = win->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 && win == top_window)
|
|
{
|
|
set_error( STATUS_ACCESS_DENIED );
|
|
return;
|
|
}
|
|
if (req->extra_offset < -1 || req->extra_offset >= win->nb_extra_bytes)
|
|
{
|
|
set_error( STATUS_INVALID_PARAMETER );
|
|
return;
|
|
}
|
|
if (req->extra_offset != -1)
|
|
{
|
|
memcpy( &reply->old_extra_value, win->extra_bytes + req->extra_offset,
|
|
min( sizeof(reply->old_extra_value),
|
|
(size_t)(win->nb_extra_bytes - req->extra_offset) ));
|
|
}
|
|
else if (req->flags & (SET_WIN_EXTRAWORD|SET_WIN_EXTRALONG))
|
|
{
|
|
set_error( STATUS_INVALID_PARAMETER );
|
|
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_EXTRAWORD|SET_WIN_EXTRALONG))
|
|
{
|
|
const int len = (req->flags & SET_WIN_EXTRALONG) ? sizeof(int) : sizeof(short);
|
|
memcpy( win->extra_bytes + req->extra_offset, &req->extra_value,
|
|
min( len, win->nb_extra_bytes - req->extra_offset ));
|
|
}
|
|
}
|
|
|
|
|
|
/* 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 && ptr->atom != 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 && ptr->atom != req->atom) continue;
|
|
if (req->tid && get_thread_id(ptr->thread) != req->tid) continue;
|
|
*data++ = ptr->handle;
|
|
len -= sizeof(*data);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/* 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 window and client rectangles of a window */
|
|
DECL_HANDLER(set_window_rectangles)
|
|
{
|
|
struct window *win = get_window( req->handle );
|
|
|
|
if (win)
|
|
{
|
|
win->window_rect = req->window;
|
|
win->client_rect = req->client;
|
|
}
|
|
}
|
|
|
|
|
|
/* 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;
|
|
}
|
|
}
|
|
|
|
|
|
/* increment the window paint count */
|
|
DECL_HANDLER(inc_window_paint_count)
|
|
{
|
|
struct window *win = get_window( req->handle );
|
|
|
|
if (win && win->thread)
|
|
{
|
|
int old = win->paint_count;
|
|
if ((win->paint_count += req->incr) < 0) win->paint_count = 0;
|
|
inc_queue_paint_count( win->thread, win->paint_count - old );
|
|
}
|
|
}
|
|
|
|
|
|
/* 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;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/* 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;
|
|
}
|