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Add mouse button actions. One example handler that does nothing and we
[spectrwm.git] / scrotwm.c
index 50ff0f4..a97a184 100644 (file)
--- a/scrotwm.c
+++ b/scrotwm.c
@@ -99,6 +99,7 @@
 #define        SWM_D_FOCUS             0x0008
 #define        SWM_D_MOVE              0x0010
 #define        SWM_D_STACK             0x0020
+#define        SWM_D_MOUSE             0x0040
 
 u_int32_t              swm_debug = 0
                            | SWM_D_MISC
@@ -113,9 +114,10 @@ u_int32_t          swm_debug = 0
 #define DNPRINTF(n,x...)
 #endif
 
-#define LENGTH(x)               (sizeof x / sizeof x[0])
+#define LENGTH(x)              (sizeof x / sizeof x[0])
 #define MODKEY                 Mod1Mask
-#define CLEANMASK(mask)         (mask & ~(numlockmask | LockMask))
+#define CLEANMASK(mask)                (mask & ~(numlockmask | LockMask))
+#define BUTTONMASK             (ButtonPressMask|ButtonReleaseMask)
 
 #define X(r)           (r)->g.x        
 #define Y(r)           (r)->g.y
@@ -182,7 +184,7 @@ struct ws_win {
        TAILQ_ENTRY(ws_win)     entry;
        Window                  id;
        struct swm_geometry     g;
-       int                     focus;
+       int                     got_focus;
        int                     floating;
        int                     transient;
        struct workspace        *ws;    /* always valid */
@@ -199,6 +201,8 @@ void        horizontal_config(struct workspace *, int);
 void   horizontal_stack(struct workspace *, struct swm_geometry *);
 void   max_stack(struct workspace *, struct swm_geometry *);
 
+void   grabbuttons(struct ws_win *, int);
+
 struct layout {
        void            (*l_stack)(struct workspace *, struct swm_geometry *);
        void            (*l_config)(struct workspace *, int);
@@ -220,7 +224,6 @@ struct workspace {
        struct layout           *cur_layout;    /* current layout handlers */
        struct ws_win           *focus;         /* may be NULL */
        struct swm_region       *r;             /* may be NULL */
-       struct swm_region       *prev_r;        /* may be NULL */
        struct ws_win_list      winlist;        /* list of windows in ws */
 
        /* stacker state */
@@ -250,7 +253,6 @@ struct swm_screen {
 };
 struct swm_screen      *screens;
 int                    num_screens;
-Window rootclick = 0;
 
 struct ws_win          *cur_focus = NULL;
 
@@ -655,23 +657,20 @@ root_to_region(Window root)
                if (screens[i].root == root)
                        break;
 
-       if (rootclick != root && /* if root was just clicked in, use cursor */
-           cur_focus && cur_focus->ws->r && cur_focus->s == &screens[i])
-               r = cur_focus->ws->r;
-       else {
-               if (XQueryPointer(display, screens[i].root, 
-                   &rr, &cr, &x, &y, &wx, &wy, &mask) == False) {
-                       r = TAILQ_FIRST(&screens[i].rl);
-               } else {
-                       TAILQ_FOREACH(r, &screens[i].rl, entry) {
-                               if (x > X(r) && x < X(r) + WIDTH(r) &&
-                                   y > Y(r) && y < Y(r) + HEIGHT(r))
-                                       break;
-                       }
-
-                       if (r == NULL)
-                               r = TAILQ_FIRST(&screens[i].rl);
+       if (XQueryPointer(display, screens[i].root, 
+           &rr, &cr, &x, &y, &wx, &wy, &mask) == False) {
+               /* if we can't query the pointer, grab the first region */
+               r = TAILQ_FIRST(&screens[i].rl);
+       } else {
+               /* otherwise, choose a region based on pointer location */
+               TAILQ_FOREACH(r, &screens[i].rl, entry) {
+                       if (x > X(r) && x < X(r) + WIDTH(r) &&
+                           y > Y(r) && y < Y(r) + HEIGHT(r))
+                               break;
                }
+
+               if (r == NULL)
+                       r = TAILQ_FIRST(&screens[i].rl);
        }
        return (r);
 }
@@ -713,36 +712,45 @@ spawn(struct swm_region *r, union arg *args)
 }
 
 void
-unfocus_win(struct ws_win *win)
+unfocus_all(void)
 {
-       DNPRINTF(SWM_D_FOCUS, "unfocus_win: id: %lu\n", win->id);
-       if (win->ws->r && win->focus)
-               XSetWindowBorder(display, win->id,
-                   win->ws->r->s->color_unfocus);
-       win->focus = 0;
-       if (win->ws->focus == win)
-               win->ws->focus = NULL;
-       if (cur_focus == win)
-               cur_focus = NULL;
-}
+       struct ws_win           *win;
+       int                     i, j;
 
+       DNPRINTF(SWM_D_FOCUS, "unfocus_all:\n");
+
+       for (i = 0; i < ScreenCount(display); i++)
+               for (j = 0; j < SWM_WS_MAX; j++)
+                       TAILQ_FOREACH(win, &screens[i].ws[j].winlist, entry) {
+                               if (win->ws->r == NULL)
+                                       continue;
+                               grabbuttons(win, 0);
+                               XSetWindowBorder(display, win->id,
+                                   win->ws->r->s->color_unfocus);
+                               win->got_focus = 0;
+                               win->ws->focus = NULL;
+                               cur_focus = NULL;
+                       }
+}
 
 void
 focus_win(struct ws_win *win)
 {
-       DNPRINTF(SWM_D_FOCUS, "focus_win: id: %lu\n", win->id);
+       DNPRINTF(SWM_D_FOCUS, "focus_win: id: %lu\n", win ? win->id : 0);
 
-       rootclick = 0;
+       if (win == NULL)
+               return;
 
+       unfocus_all();
        win->ws->focus = win;
        if (win->ws->r != NULL) {
-               if (cur_focus && cur_focus != win)
-                       unfocus_win(cur_focus);
                cur_focus = win;
-               if (!win->focus)
+               if (!win->got_focus) {
                        XSetWindowBorder(display, win->id,
                            win->ws->r->s->color_focus);
-               win->focus = 1;
+                       grabbuttons(win, 1);
+               }
+               win->got_focus = 1;
                XSetInputFocus(display, win->id,
                    RevertToPointerRoot, CurrentTime);
        }
@@ -769,33 +777,26 @@ switchws(struct swm_region *r, union arg *args)
 
        other_r = new_ws->r;
        if (!other_r) {
-               /* 
-                * If the other workspace is hidden and the workspace was
-                * previously mapped here, just swap switch windows.
-                * map new window first to prevent ugly blinking
-                */
-               if (new_ws->restack == 0 && new_ws->prev_r == this_r) {
-                       TAILQ_FOREACH(win, &new_ws->winlist, entry)
-                               XMapRaised(display, win->id);
+               /* if the other workspace is hidden, switch windows */
+               /* map new window first to prevent ugly blinking */
+               TAILQ_FOREACH(win, &new_ws->winlist, entry)
+                       XMapRaised(display, win->id);
+
+               TAILQ_FOREACH(win, &old_ws->winlist, entry)
+                       XUnmapWindow(display, win->id);
 
-                       TAILQ_FOREACH(win, &old_ws->winlist, entry)
-                               XUnmapWindow(display, win->id);
-               }
-               old_ws->prev_r = old_ws->r;
                old_ws->r = NULL;
+               old_ws->restack = 1;
        } else {
                other_r->ws = old_ws;
                old_ws->r = other_r;
        }
        this_r->ws = new_ws;
-       new_ws->prev_r = new_ws->r;
        new_ws->r = this_r;
 
        ignore_enter = 1;
        /* set focus */
-       if (!new_ws->focus)
-               new_ws->focus = TAILQ_FIRST(&new_ws->winlist);
-       if (new_ws->focus )
+       if (new_ws->focus)
                focus_win(new_ws->focus);
        stack();
        bar_update();
@@ -1355,6 +1356,36 @@ struct key {
 };
 
 void
+click(struct swm_region *r, union arg *args)
+{
+       DNPRINTF(SWM_D_MOUSE, "click: button: %d\n", args->id);
+
+       switch (args->id) {
+       case Button1:
+               break;
+       case Button2:
+               break;
+       case Button3:
+               break;
+       default:
+               return;
+       }
+}
+
+/* mouse */
+enum { client_click, root_click };
+struct button {
+       unsigned int            action;
+       unsigned int            mask;
+       unsigned int            button;
+       void                    (*func)(struct swm_region *r, union arg *);
+       union arg               args;
+} buttons[] = {
+         /* action             key             mouse button    func            args */
+       { client_click,         MODKEY,         Button1,        click, {.id=Button1} },
+};
+
+void
 updatenumlockmask(void)
 {
        unsigned int            i, j;
@@ -1397,6 +1428,30 @@ grabkeys(void)
                }
        }
 }
+
+void
+grabbuttons(struct ws_win *win, int focused)
+{
+       unsigned int            i, j;
+       unsigned int            modifiers[] =
+           { 0, LockMask, numlockmask, numlockmask|LockMask };
+
+       updatenumlockmask();
+       XUngrabButton(display, AnyButton, AnyModifier, win->id);
+       if(focused) {
+               for (i = 0; i < LENGTH(buttons); i++)
+                       if (buttons[i].action == client_click)
+                               for (j = 0; j < LENGTH(modifiers); j++)
+                                       XGrabButton(display, buttons[i].button,
+                                           buttons[i].mask | modifiers[j],
+                                           win->id, False, BUTTONMASK,
+                                           GrabModeAsync, GrabModeSync, None,
+                                           None);
+       } else
+               XGrabButton(display, AnyButton, AnyModifier, win->id, False,
+                   BUTTONMASK, GrabModeAsync, GrabModeSync, None, None);
+}
+
 void
 expose(XEvent *e)
 {
@@ -1425,35 +1480,26 @@ void
 buttonpress(XEvent *e)
 {
        XButtonPressedEvent     *ev = &e->xbutton;
-#ifdef SWM_CLICKTOFOCUS
+
        struct ws_win           *win;
-       struct workspace        *ws;
-       struct swm_region       *r;
-#endif
+       int                     i, action;
 
        DNPRINTF(SWM_D_EVENT, "buttonpress: window: %lu\n", ev->window);
 
-       if (ev->window == ev->root) {
-               rootclick = ev->root;
-               return;
-       }
-       if (ev->window == cur_focus->id)
+       action = root_click;
+       if ((win = find_window(ev->window)) == NULL)
                return;
-#ifdef SWM_CLICKTOFOCUS
-       r = root_to_region(ev->root);
-       ws = r->ws;
-       TAILQ_FOREACH(win, &ws->winlist, entry)
-               if (win->id == ev->window) {
-                       /* focus in the clicked window */
-                       XSetWindowBorder(display, ev->window, 0xff0000);
-                       XSetWindowBorder(display, ws->focus->id, 0x888888);
-                       XSetInputFocus(display, ev->window, RevertToPointerRoot,
-                           CurrentTime);
-                       ws->focus = win;
-                       XSync(display, False);
-                       break;
+       else {
+               focus_win(win);
+               action = client_click;
        }
-#endif
+
+       for (i = 0; i < LENGTH(buttons); i++)
+               if (action == buttons[i].action && buttons[i].func &&
+                   buttons[i].button == ev->button &&
+                   CLEANMASK(buttons[i].mask) == CLEANMASK(ev->state))
+                       buttons[i].func(root_to_region(ev->root),
+                       &buttons[i].args);
 }
 
 void
@@ -1593,11 +1639,12 @@ destroynotify(XEvent *e)
 {
        struct ws_win           *win;
        XDestroyWindowEvent     *ev = &e->xdestroywindow;
+       struct workspace        *ws;
 
        DNPRINTF(SWM_D_EVENT, "destroynotify: window %lu\n", ev->window);
 
        if ((win = find_window(ev->window)) != NULL) {
-               struct workspace *ws = win->ws;
+               ws = win->ws;
                /* find a window to focus */
                if (ws->focus == win)
                        ws->focus = TAILQ_PREV(win, ws_win_list, entry);
@@ -1605,22 +1652,14 @@ destroynotify(XEvent *e)
                        ws->focus = TAILQ_FIRST(&ws->winlist);
                if (ws->focus == win)
                        ws->focus = NULL;
-               if (cur_focus == win) {
-                       if (ws->focus == NULL) 
-                               unfocus_win(win); /* XXX focus another ws? */
-                       else
-                               focus_win(ws->focus);
-               }
+               if (cur_focus == win)
+                       focus_win(ws->focus);
 
                TAILQ_REMOVE(&ws->winlist, win, entry);
                set_win_state(win, WithdrawnState);
                free(win);
-
-               if (ws->r == NULL)
-                       ws->restack = 1;
-               else
-                       stack();
        }
+       stack();
 }
 
 void
@@ -1628,47 +1667,23 @@ enternotify(XEvent *e)
 {
        XCrossingEvent          *ev = &e->xcrossing;
        struct ws_win           *win;
-       int                     i, j;
 
        DNPRINTF(SWM_D_EVENT, "enternotify: window: %lu\n", ev->window);
 
-       if ((ev->mode != NotifyNormal || ev->detail == NotifyInferior) &&
-           ev->window != ev->root)
-               return;
        if (ignore_enter) {
                /* eat event(r) to prevent autofocus */
                ignore_enter--;
                return;
        }
-       /* brute force for now */
-       for (i = 0; i < ScreenCount(display); i++) {
-               for (j = 0; j < SWM_WS_MAX; j++) {
-                       TAILQ_FOREACH(win, &screens[i].ws[j].winlist , entry) {
-                               if (win->id == ev->window)
-                                       focus_win(win);
-                       }
-               }
-       }
+
+       if ((win = find_window(ev->window)) != NULL)
+               focus_win(win);
 }
 
 void
 focusin(XEvent *e)
 {
        DNPRINTF(SWM_D_EVENT, "focusin: window: %lu\n", e->xfocus.window);
-
-       /* XXX this probably needs better handling now.
-       if (ev->window == ev->root)
-               return;
-       */
-       /*
-        * kill grab for now so that we can cut and paste , this screws up
-        * click to focus
-        */
-       /*
-       DNPRINTF(SWM_D_EVENT, "focusin: window: %lu grabbing\n", ev->window);
-       XGrabButton(display, Button1, AnyModifier, ev->window, False,
-           ButtonPress, GrabModeAsync, GrabModeSync, None, None);
-       */
 }
 
 void
@@ -1848,9 +1863,6 @@ setup_screens(void)
                screens[i].idx = i;
                TAILQ_INIT(&screens[i].rl);
                screens[i].root = RootWindow(display, i);
-               XGetWindowAttributes(display, screens[i].root, &wa);
-               XSelectInput(display, screens[i].root,
-                   ButtonPressMask | wa.your_event_mask);
 
                /* set default colors */
                screens[i].color_focus = name_to_color("red");