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event: modularize Lua callback handling 

Signed-off-by: Julien Danjou <julien@danjou.info>
This commit is contained in:
Julien Danjou 2009-04-27 17:46:15 +02:00
parent e9794c7cbd
commit d80c6e9c33
1 changed files with 44 additions and 86 deletions
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130
event.c
View File

@ -42,55 +42,45 @@
#include "common/atoms.h"
#include "common/xutil.h"
#define EVENT_BUTTON_MATCH(b, state, xbutton) \
((!(b)->button || (xbutton) == (b)->button) \
&& ((b)->mod == XCB_BUTTON_MASK_ANY || (b)->mod == (state)))
#define DO_EVENT_HOOK_CALLBACK(xcbtype, xcbeventprefix, type, arraytype, match) \
static void \
event_##xcbtype##_callback(xcb_##xcbtype##_press_event_t *ev, \
arraytype *arr, \
int nargs) \
{ \
foreach(item, *arr) \
if(match(ev, *item)) \
switch(ev->response_type) \
{ \
case xcbeventprefix##_PRESS: \
if((*item)->press != LUA_REFNIL) \
{ \
for(int i = 0; i < nargs; i++) \
lua_pushvalue(globalconf.L, - nargs); \
luaA_dofunction(globalconf.L, (*item)->press, nargs, 0); \
} \
break; \
case xcbeventprefix##_RELEASE: \
if((*item)->release != LUA_REFNIL) \
{ \
for(int i = 0; i < nargs; i++) \
lua_pushvalue(globalconf.L, - nargs); \
luaA_dofunction(globalconf.L, (*item)->release, nargs, 0); \
} \
break; \
} \
lua_pop(globalconf.L, nargs); \
}
/** Handle mouse button events.
* \param c The client on which the event happened or NULL.
* \param type Event type, press or release.
* \param button Button number.
* \param state Modkeys state.
* \param buttons Buttons array to check for.
*/
static void
event_handle_mouse_button(client_t *c,
uint8_t type,
xcb_button_t button,
uint16_t state,
button_array_t *buttons)
static bool
event_button_match(xcb_button_press_event_t *ev, button_t *b)
{
foreach(b, *buttons)
if(EVENT_BUTTON_MATCH(*b, state, button))
switch(type)
{
case XCB_BUTTON_PRESS:
if((*b)->press != LUA_REFNIL)
{
if(c)
{
client_push(globalconf.L, c);
luaA_dofunction(globalconf.L, (*b)->press, 1, 0);
}
else
luaA_dofunction(globalconf.L, (*b)->press, 0, 0);
}
break;
case XCB_BUTTON_RELEASE:
if((*b)->release != LUA_REFNIL)
{
if(c)
{
client_push(globalconf.L, c);
luaA_dofunction(globalconf.L, (*b)->release, 1, 0);
}
else
luaA_dofunction(globalconf.L, (*b)->release, 0, 0);
}
break;
}
return ((!b->button || ev->detail == b->button)
&& (b->mod == XCB_BUTTON_MASK_ANY || b->mod == ev->state));
}
DO_EVENT_HOOK_CALLBACK(button, XCB_BUTTON, button_t, button_array_t, event_button_match)
/** Handle an event with mouse grabber if needed
* \param x The x coordinate.
* \param y The y coordinate.
@ -146,26 +136,8 @@ event_handle_button(void *data, xcb_connection_t *connection, xcb_button_press_e
ev->event_y -= wibox->sw.geometry.y;
}
/* check if we match a binding on the wibox */
foreach(b, wibox->buttons)
if(EVENT_BUTTON_MATCH(*b, ev->state, ev->detail))
switch(ev->response_type)
{
case XCB_BUTTON_PRESS:
if((*b)->press != LUA_REFNIL)
{
wibox_push(globalconf.L, wibox);
luaA_dofunction(globalconf.L, (*b)->press, 1, 0);
}
break;
case XCB_BUTTON_RELEASE:
if((*b)->release != LUA_REFNIL)
{
wibox_push(globalconf.L, wibox);
luaA_dofunction(globalconf.L, (*b)->release, 1, 0);
}
break;
}
wibox_push(globalconf.L, wibox);
event_button_callback(ev, &wibox->buttons, 1);
/* then try to match a widget binding */
widget_t *w = widget_getbycoords(wibox->position, &wibox->widgets,
@ -173,32 +145,18 @@ event_handle_button(void *data, xcb_connection_t *connection, xcb_button_press_e
wibox->sw.geometry.height,
&ev->event_x, &ev->event_y);
if(w)
foreach(b, w->buttons)
if(EVENT_BUTTON_MATCH(*b, ev->state, ev->detail))
switch(ev->response_type)
{
case XCB_BUTTON_PRESS:
if((*b)->press != LUA_REFNIL)
{
wibox_push(globalconf.L, wibox);
luaA_dofunction(globalconf.L, (*b)->press, 1, 0);
}
break;
case XCB_BUTTON_RELEASE:
if((*b)->release != LUA_REFNIL)
{
wibox_push(globalconf.L, wibox);
luaA_dofunction(globalconf.L, (*b)->release, 1, 0);
}
break;
}
{
widget_push(globalconf.L, w);
event_button_callback(ev, &w->buttons, 1);
}
/* return even if no widget match */
return 0;
}
else if((c = client_getbywin(ev->event)))
{
event_handle_mouse_button(c, ev->response_type, ev->detail, ev->state, &c->buttons);
client_push(globalconf.L, c);
event_button_callback(ev, &c->buttons, 1);
xcb_allow_events(globalconf.connection,
XCB_ALLOW_REPLAY_POINTER,
XCB_CURRENT_TIME);
@ -207,7 +165,7 @@ event_handle_button(void *data, xcb_connection_t *connection, xcb_button_press_e
for(screen = 0; screen < nb_screen; screen++)
if(xutil_screen_get(connection, screen)->root == ev->event)
{
event_handle_mouse_button(NULL, ev->response_type, ev->detail, ev->state, &globalconf.buttons);
event_button_callback(ev, &globalconf.buttons, 0);
return 0;
}