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/*
* mouse.c - mouse managing
*
* Copyright © 2007-2009 Julien Danjou <julien@danjou.info>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
*/
#include "mouse.h"
#include "screen.h"
#include "objects/client.h"
#include "globalconf.h"
#include "objects/wibox.h"
#include "luaa.h"
#include "common/tokenize.h"
#include "common/xutil.h"
/** Get the pointer position.
* \param window The window to get position on.
* \param x will be set to the Pointer-x-coordinate relative to window
* \param y will be set to the Pointer-y-coordinate relative to window
* \param child Will be set to the window under the pointer.
* \param mask will be set to the current buttons state
* \return true on success, false if an error occurred
**/
bool
mouse_query_pointer(xcb_window_t window, int16_t *x, int16_t *y, xcb_window_t *child, uint16_t *mask)
{
xcb_query_pointer_cookie_t query_ptr_c;
xcb_query_pointer_reply_t *query_ptr_r;
query_ptr_c = xcb_query_pointer_unchecked(globalconf.connection, window);
query_ptr_r = xcb_query_pointer_reply(globalconf.connection, query_ptr_c, NULL);
if(!query_ptr_r || !query_ptr_r->same_screen)
return false;
*x = query_ptr_r->win_x;
*y = query_ptr_r->win_y;
if(mask)
*mask = query_ptr_r->mask;
if(child)
*child = query_ptr_r->child;
p_delete(&query_ptr_r);
return true;
}
/** Get the pointer position on the screen.
* \param s This will be set to the screen the mouse is on.
* \param x This will be set to the Pointer-x-coordinate relative to window.
* \param y This will be set to the Pointer-y-coordinate relative to window.
* \param child This will be set to the window under the pointer.
* \param mask This will be set to the current buttons state.
* \return True on success, false if an error occurred.
*/
static bool
mouse_query_pointer_root(screen_t **s, int16_t *x, int16_t *y, xcb_window_t *child, uint16_t *mask)
{
for(int screen = 0;
screen < xcb_setup_roots_length(xcb_get_setup(globalconf.connection));
screen++)
{
xcb_window_t root = xutil_screen_get(globalconf.connection, screen)->root;
if(mouse_query_pointer(root, x, y, child, mask))
{
*s = &globalconf.screens.tab[screen];
return true;
}
}
return false;
}
/** Set the pointer position.
* \param window The destination window.
* \param x X-coordinate inside window.
* \param y Y-coordinate inside window.
*/
static inline void
mouse_warp_pointer(xcb_window_t window, int x, int y)
{
xcb_warp_pointer(globalconf.connection, XCB_NONE, window,
0, 0, 0, 0, x, y );
}
/** Mouse library.
* \param L The Lua VM state.
* \return The number of elements pushed on stack.
* \luastack
* \lfield coords Mouse coordinates.
* \lfield screen Mouse screen number.
*/
static int
luaA_mouse_index(lua_State *L)
{
size_t len;
const char *attr = luaL_checklstring(L, 2, &len);
int16_t mouse_x, mouse_y;
screen_t *screen;
switch(a_tokenize(attr, len))
{
case A_TK_SCREEN:
if(!mouse_query_pointer_root(&screen, &mouse_x, &mouse_y, NULL, NULL))
return 0;
screen = screen_getbycoord(screen, mouse_x, mouse_y);
lua_pushnumber(L, screen_array_indexof(&globalconf.screens, screen) + 1);
break;
default:
return 0;
}
return 1;
}
/** Newindex for mouse.
* \param L The Lua VM state.
* \return The number of elements pushed on stack.
*/
static int
luaA_mouse_newindex(lua_State *L)
{
size_t len;
const char *attr = luaL_checklstring(L, 2, &len);
int x, y = 0;
xcb_window_t root;
int screen, phys_screen;
switch(a_tokenize(attr, len))
{
case A_TK_SCREEN:
screen = luaL_checknumber(L, 3) - 1;
luaA_checkscreen(screen);
/* we need the physical one to get the root window */
phys_screen = screen_virttophys(screen);
root = xutil_screen_get(globalconf.connection, phys_screen)->root;
x = globalconf.screens.tab[screen].geometry.x;
y = globalconf.screens.tab[screen].geometry.y;
mouse_warp_pointer(root, x, y);
break;
default:
return 0;
}
return 0;
}
/** Push a table with mouse status.
* \param L The Lua VM state.
* \param x The x coordinate.
* \param y The y coordinate.
* \param mask The button mask.
*/
int
luaA_mouse_pushstatus(lua_State *L, int x, int y, uint16_t mask)
{
lua_createtable(L, 0, 2);
lua_pushnumber(L, x);
lua_setfield(L, -2, "x");
lua_pushnumber(L, y);
lua_setfield(L, -2, "y");
lua_createtable(L, 5, 0);
int i = 1;
for(uint16_t maski = XCB_BUTTON_MASK_1; maski <= XCB_BUTTON_MASK_5; maski <<= 1)
{
if(mask & maski)
lua_pushboolean(L, true);
else
lua_pushboolean(L, false);
lua_rawseti(L, -2, i++);
}
lua_setfield(L, -2, "buttons");
return 1;
}
/** Get or set the mouse coords.
* \param L The Lua VM state.
* \return The number of elements pushed on stack.
*/
static int
luaA_mouse_coords(lua_State *L)
{
uint16_t mask;
int x, y;
int16_t mouse_x, mouse_y;
screen_t *screen;
if(lua_gettop(L) >= 1)
{
xcb_window_t root;
luaA_checktable(L, 1);
bool ignore_enter_notify = (lua_gettop(L) == 2 && luaA_checkboolean(L, 2));
if(!mouse_query_pointer_root(&screen, &mouse_x, &mouse_y, NULL, &mask))
return 0;
x = luaA_getopt_number(L, 1, "x", mouse_x);
y = luaA_getopt_number(L, 1, "y", mouse_y);
root = xutil_screen_get(globalconf.connection,
screen_array_indexof(&globalconf.screens, screen))->root;
if(ignore_enter_notify)
client_ignore_enterleave_events();
mouse_warp_pointer(root, x, y);
if(ignore_enter_notify)
client_restore_enterleave_events();
lua_pop(L, 1);
}
if(!mouse_query_pointer_root(&screen, &mouse_x, &mouse_y, NULL, &mask))
return 0;
return luaA_mouse_pushstatus(L, mouse_x, mouse_y, mask);
}
/** Get the client which is under the pointer.
* \param L The Lua VM state.
* \return The number of elements pushed on stack.
* \luastack
* \lreturn A client or nil.
*/
static int
luaA_mouse_object_under_pointer(lua_State *L)
{
screen_t *screen;
int16_t mouse_x, mouse_y;
xcb_window_t child;
if(!mouse_query_pointer_root(&screen, &mouse_x, &mouse_y, &child, NULL))
return 0;
wibox_t *wibox;
client_t *client;
if((wibox = wibox_getbywin(child)))
{
luaA_object_push(L, wibox);
int16_t x = mouse_x - wibox->geometry.x;
int16_t y = mouse_y - wibox->geometry.y;
widget_t *widget = widget_getbycoords(wibox->orientation, &wibox->widgets,
wibox->geometry.width,
wibox->geometry.height,
&x, &y);
if(widget)
{
luaA_object_push(L, widget);
return 2;
}
return 1;
}
else if((client = client_getbywin(child)))
return luaA_object_push(globalconf.L, client);
return 0;
}
const struct luaL_reg awesome_mouse_methods[] =
{
{ "__index", luaA_mouse_index },
{ "__newindex", luaA_mouse_newindex },
{ "coords", luaA_mouse_coords },
{ "object_under_pointer", luaA_mouse_object_under_pointer },
{ NULL, NULL }
};
const struct luaL_reg awesome_mouse_meta[] =
{
{ NULL, NULL }
};
// vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80
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