openbox/plugins/mouse/mouse.c

396 lines
12 KiB
C

#include "kernel/openbox.h"
#include "kernel/dispatch.h"
#include "kernel/action.h"
#include "kernel/event.h"
#include "kernel/client.h"
#include "kernel/frame.h"
#include "kernel/grab.h"
#include "kernel/engine.h"
#include "kernel/parse.h"
#include "kernel/frame.h"
#include "translate.h"
#include "mouse.h"
#include "mouseparse.h"
#include <glib.h>
static int threshold;
static int dclicktime;
static void parse_assign(char *name, ParseToken *value)
{
if (!g_ascii_strcasecmp(name, "dragthreshold")) {
if (value->type != TOKEN_INTEGER)
yyerror("invalid value");
else {
if (value->data.integer >= 0)
threshold = value->data.integer;
}
} else if (!g_ascii_strcasecmp(name, "doubleclicktime")) {
if (value->type != TOKEN_INTEGER)
yyerror("invalid value");
else {
if (value->data.integer >= 0)
dclicktime = value->data.integer;
}
} else
yyerror("invalid option");
parse_free_token(value);
}
void plugin_setup_config()
{
threshold = 3;
dclicktime = 200;
parse_reg_section("mouse", mouseparse, parse_assign);
}
/* Array of GSList*s of PointerBinding*s. */
static GSList *bound_contexts[NUM_CONTEXTS];
static void grab_for_client(Client *client, gboolean grab)
{
int i;
GSList *it;
for (i = 0; i < NUM_CONTEXTS; ++i)
for (it = bound_contexts[i]; it != NULL; it = it->next) {
/* grab/ungrab the button */
MouseBinding *b = it->data;
Window win;
int mode;
unsigned int mask;
if (i == Context_Frame) {
win = client->frame->window;
mode = GrabModeAsync;
mask = ButtonPressMask | ButtonMotionMask | ButtonReleaseMask;
} else if (i == Context_Client) {
win = client->frame->plate;
mode = GrabModeSync; /* this is handled in event */
mask = ButtonPressMask; /* can't catch more than this with Sync
mode the release event is
manufactured in event() */
} else continue;
if (grab)
grab_button(b->button, b->state, win, mask, mode);
else
ungrab_button(b->button, b->state, win);
}
}
static void grab_all_clients(gboolean grab)
{
GList *it;
for (it = client_list; it != NULL; it = it->next)
grab_for_client(it->data, grab);
}
static void clearall()
{
int i;
GSList *it;
for(i = 0; i < NUM_CONTEXTS; ++i) {
for (it = bound_contexts[i]; it != NULL; it = it->next) {
int j;
MouseBinding *b = it->data;
for (j = 0; j < NUM_MOUSEACTION; ++j)
if (b->action[j] != NULL)
action_free(b->action[j]);
g_free(b);
}
g_slist_free(bound_contexts[i]);
}
}
static void fire_button(MouseAction a, Context context, Client *c, guint state,
guint button)
{
GSList *it;
MouseBinding *b;
for (it = bound_contexts[context]; it != NULL; it = it->next) {
b = it->data;
if (b->state == state && b->button == button)
break;
}
/* if not bound, then nothing to do! */
if (it == NULL) return;
if (b->action[a] != NULL && b->action[a]->func != NULL) {
b->action[a]->data.any.c = c;
g_assert(!(b->action[a]->func == action_move ||
b->action[a]->func == action_resize));
b->action[a]->func(&b->action[a]->data);
}
}
/* corner should be the opposite corner of the window in which the pointer
clicked, Corner_TopLeft if a good default if there is no client
Returns True or False for if a binding existed for the action or not.
*/
static gboolean fire_motion(MouseAction a, Context context, Client *c,
guint state, guint button, int cx, int cy,
int cw, int ch, int dx, int dy,
gboolean final, Corner corner)
{
GSList *it;
MouseBinding *b;
for (it = bound_contexts[context]; it != NULL; it = it->next) {
b = it->data;
if (b->state == state && b->button == button)
break;
}
/* if not bound, then nothing to do! */
if (it == NULL) return FALSE;
if (b->action[a] != NULL && b->action[a]->func != NULL) {
b->action[a]->data.any.c = c;
if (b->action[a]->func == action_move) {
b->action[a]->data.move.x = cx + dx;
b->action[a]->data.move.y = cy + dy;
b->action[a]->data.move.final = final;
} else if (b->action[a]->func == action_resize) {
b->action[a]->data.resize.corner = corner;
switch (corner) {
case Corner_TopLeft:
b->action[a]->data.resize.x = cw + dx;
b->action[a]->data.resize.y = ch + dy;
break;
case Corner_TopRight:
b->action[a]->data.resize.x = cw - dx;
b->action[a]->data.resize.y = ch + dy;
break;
case Corner_BottomLeft:
b->action[a]->data.resize.x = cw + dx;
b->action[a]->data.resize.y = ch - dy;
break;
case Corner_BottomRight:
b->action[a]->data.resize.x = cw - dx;
b->action[a]->data.resize.y = ch - dy;
break;
}
b->action[a]->data.resize.final = final;
} else
g_assert_not_reached();
b->action[a]->func(&b->action[a]->data);
return TRUE;
}
return FALSE;
}
static Corner pick_corner(int x, int y, int cx, int cy, int cw, int ch)
{
if (x - cx < cw / 2) {
if (y - cy < ch / 2)
return Corner_BottomRight;
else
return Corner_TopRight;
} else {
if (y - cy < ch / 2)
return Corner_BottomLeft;
else
return Corner_TopLeft;
}
}
static void event(ObEvent *e, void *foo)
{
static Time ltime;
static int px, py, cx, cy, cw, ch, dx, dy;
static guint button = 0, state = 0, lbutton = 0;
static gboolean drag = FALSE, drag_used = FALSE;
static Corner corner = Corner_TopLeft;
gboolean click = FALSE;
gboolean dclick = FALSE;
Context context;
switch (e->type) {
case Event_Client_Mapped:
grab_for_client(e->data.c.client, TRUE);
break;
case Event_Client_Destroy:
grab_for_client(e->data.c.client, FALSE);
break;
case Event_X_ButtonPress:
if (!button) {
if (e->data.x.client != NULL) {
cx = e->data.x.client->frame->area.x;
cy = e->data.x.client->frame->area.y;
/* use the client size because the frame can be differently
sized (shaded windows) and we want this based on the clients
size */
cw = e->data.x.client->area.width +
e->data.x.client->frame->size.left +
e->data.x.client->frame->size.right;
ch = e->data.x.client->area.height +
e->data.x.client->frame->size.top +
e->data.x.client->frame->size.bottom;
px = e->data.x.e->xbutton.x_root;
py = e->data.x.e->xbutton.y_root;
corner = pick_corner(px, py, cx, cy, cw, ch);
}
button = e->data.x.e->xbutton.button;
state = e->data.x.e->xbutton.state;
}
context = engine_get_context(e->data.x.client,
e->data.x.e->xbutton.window);
fire_button(MouseAction_Press, context,
e->data.x.client, e->data.x.e->xbutton.state,
e->data.x.e->xbutton.button);
if (context == Context_Client) {
/* Replay the event, so it goes to the client*/
XAllowEvents(ob_display, ReplayPointer, event_lasttime);
/* Fall through to the release case! */
} else
break;
case Event_X_ButtonRelease:
context = engine_get_context(e->data.x.client,
e->data.x.e->xbutton.window);
if (e->data.x.e->xbutton.button == button) {
/* end drags */
if (drag_used) {
fire_motion(MouseAction_Motion, context,
e->data.x.client, state, button,
cx, cy, cw, ch, dx, dy, TRUE, corner);
drag = drag_used = FALSE;
lbutton = 0;
} else {
/* clicks are only valid if its released over the window */
int junk;
Window wjunk;
guint ujunk, b, w, h;
XGetGeometry(ob_display, e->data.x.e->xbutton.window,
&wjunk, &junk, &junk, &w, &h, &b, &ujunk);
if (e->data.x.e->xbutton.x >= (signed)-b &&
e->data.x.e->xbutton.y >= (signed)-b &&
e->data.x.e->xbutton.x < (signed)(w+b) &&
e->data.x.e->xbutton.y < (signed)(h+b)) {
click = TRUE;
/* double clicks happen if there were 2 in a row! */
if (lbutton == button &&
e->data.x.e->xbutton.time - dclicktime <= ltime) {
dclick = TRUE;
lbutton = 0;
} else
lbutton = button;
} else
lbutton = 0;
}
button = 0;
state = 0;
ltime = e->data.x.e->xbutton.time;
}
fire_button(MouseAction_Release, context,
e->data.x.client, e->data.x.e->xbutton.state,
e->data.x.e->xbutton.button);
if (click)
fire_button(MouseAction_Click, context,
e->data.x.client, e->data.x.e->xbutton.state,
e->data.x.e->xbutton.button);
if (dclick)
fire_button(MouseAction_DClick, context,
e->data.x.client, e->data.x.e->xbutton.state,
e->data.x.e->xbutton.button);
break;
case Event_X_MotionNotify:
if (button) {
dx = e->data.x.e->xmotion.x_root - px;
dy = e->data.x.e->xmotion.y_root - py;
if (!drag &&
(ABS(dx) >= threshold || ABS(dy) >= threshold))
drag = TRUE;
if (drag) {
context = engine_get_context(e->data.x.client,
e->data.x.e->xbutton.window);
drag_used = fire_motion(MouseAction_Motion, context,
e->data.x.client,
state, button, cx, cy, cw, ch, dx, dy,
FALSE, corner);
}
}
break;
default:
g_assert_not_reached();
}
}
gboolean mbind(char *buttonstr, char *contextstr, MouseAction mact,
Action *action)
{
guint state, button;
Context context;
MouseBinding *b;
GSList *it;
if (!translate_button(buttonstr, &state, &button)) {
g_warning("invalid button '%s'", buttonstr);
return FALSE;
}
contextstr = g_ascii_strdown(contextstr, -1);
context = frame_context_from_string(contextstr);
if (!context) {
g_warning("invalid context '%s'", contextstr);
g_free(contextstr);
return FALSE;
}
g_free(contextstr);
for (it = bound_contexts[context]; it != NULL; it = it->next){
b = it->data;
if (b->state == state && b->button == button) {
/* already bound */
if (b->action[mact] != NULL) {
g_warning("duplicate binding");
return FALSE;
}
b->action[mact] = action;
return TRUE;
}
}
grab_all_clients(FALSE);
/* add the binding */
b = g_new0(MouseBinding, 1);
b->state = state;
b->button = button;
b->action[mact] = action;
bound_contexts[context] = g_slist_append(bound_contexts[context], b);
grab_all_clients(TRUE);
return TRUE;
}
void plugin_startup()
{
dispatch_register(Event_Client_Mapped | Event_Client_Destroy |
Event_X_ButtonPress | Event_X_ButtonRelease |
Event_X_MotionNotify, (EventHandler)event, NULL);
}
void plugin_shutdown()
{
dispatch_register(0, (EventHandler)event, NULL);
grab_all_clients(FALSE);
clearall();
}