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small changes to dwm.1, rearranged order within main event loop
[dwm.git] / event.c
diff --git a/event.c b/event.c
index 2e0b75f..5209be3 100644 (file)
--- a/event.c
+++ b/event.c
@@ -2,70 +2,50 @@
  * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
  * See LICENSE file for license details.
  */
-
-#include <fcntl.h>
-#include <stdio.h>
+#include "dwm.h"
 #include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
 #include <X11/keysym.h>
 #include <X11/Xatom.h>
 
-#include "dwm.h"
+/* static */
 
-#define ButtonMask      (ButtonPressMask | ButtonReleaseMask)
-#define MouseMask       (ButtonMask | PointerMotionMask)
+typedef struct {
+       unsigned long mod;
+       KeySym keysym;
+       void (*func)(Arg *arg);
+       Arg arg;
+} Key;
 
-/* local functions */
-static void buttonpress(XEvent *e);
-static void configurerequest(XEvent *e);
-static void destroynotify(XEvent *e);
-static void enternotify(XEvent *e);
-static void leavenotify(XEvent *e);
-static void expose(XEvent *e);
-static void maprequest(XEvent *e);
-static void propertynotify(XEvent *e);
-static void unmapnotify(XEvent *e);
+KEYS
 
-void (*handler[LASTEvent]) (XEvent *) = {
-       [ButtonPress] = buttonpress,
-       [ConfigureRequest] = configurerequest,
-       [DestroyNotify] = destroynotify,
-       [EnterNotify] = enternotify,
-       [LeaveNotify] = leavenotify,
-       [Expose] = expose,
-       [KeyPress] = keypress,
-       [MapRequest] = maprequest,
-       [PropertyNotify] = propertynotify,
-       [UnmapNotify] = unmapnotify
-};
+#define CLEANMASK(mask) (mask & ~(numlockmask | LockMask))
 
 static void
-mresize(Client *c)
+movemouse(Client *c)
 {
+       int x1, y1, ocx, ocy, di;
+       unsigned int dui;
+       Window dummy;
        XEvent ev;
-       int ocx, ocy;
 
        ocx = c->x;
        ocy = c->y;
-       if(XGrabPointer(dpy, root, False, MouseMask, GrabModeAsync, GrabModeAsync,
-                               None, cursor[CurResize], CurrentTime) != GrabSuccess)
+       if(XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
+                       None, cursor[CurMove], CurrentTime) != GrabSuccess)
                return;
-       XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w, c->h);
+       XQueryPointer(dpy, root, &dummy, &dummy, &x1, &y1, &di, &di, &dui);
        for(;;) {
-               XMaskEvent(dpy, MouseMask | ExposureMask, &ev);
-               switch(ev.type) {
+               XMaskEvent(dpy, MOUSEMASK | ExposureMask, &ev);
+               switch (ev.type) {
                default: break;
                case Expose:
                        handler[Expose](&ev);
                        break;
                case MotionNotify:
-                       XFlush(dpy);
-                       c->w = abs(ocx - ev.xmotion.x);
-                       c->h = abs(ocy - ev.xmotion.y);
-                       c->x = (ocx <= ev.xmotion.x) ? ocx : ocx - c->w;
-                       c->y = (ocy <= ev.xmotion.y) ? ocy : ocy - c->h;
-                       resize(c, True);
+                       XSync(dpy, False);
+                       c->x = ocx + (ev.xmotion.x - x1);
+                       c->y = ocy + (ev.xmotion.y - y1);
+                       resize(c, False, TopLeft);
                        break;
                case ButtonRelease:
                        XUngrabPointer(dpy, CurrentTime);
@@ -75,31 +55,39 @@ mresize(Client *c)
 }
 
 static void
-mmove(Client *c)
+resizemouse(Client *c)
 {
+       int ocx, ocy;
+       int nw, nh;
+       Corner sticky;
        XEvent ev;
-       int x1, y1, ocx, ocy, di;
-       unsigned int dui;
-       Window dummy;
 
        ocx = c->x;
        ocy = c->y;
-       if(XGrabPointer(dpy, root, False, MouseMask, GrabModeAsync, GrabModeAsync,
-                               None, cursor[CurMove], CurrentTime) != GrabSuccess)
+       if(XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
+                               None, cursor[CurResize], CurrentTime) != GrabSuccess)
                return;
-       XQueryPointer(dpy, root, &dummy, &dummy, &x1, &y1, &di, &di, &dui);
+       XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w, c->h);
        for(;;) {
-               XMaskEvent(dpy, MouseMask | ExposureMask, &ev);
-               switch (ev.type) {
+               XMaskEvent(dpy, MOUSEMASK | ExposureMask, &ev);
+               switch(ev.type) {
                default: break;
                case Expose:
                        handler[Expose](&ev);
                        break;
                case MotionNotify:
-                       XFlush(dpy);
-                       c->x = ocx + (ev.xmotion.x - x1);
-                       c->y = ocy + (ev.xmotion.y - y1);
-                       resize(c, False);
+                       XSync(dpy, False);
+                       if((nw = abs(ocx - ev.xmotion.x)))
+                               c->w = abs(ocx - ev.xmotion.x);
+                       if((nh = abs(ocy - ev.xmotion.y)))
+                               c->h = abs(ocy - ev.xmotion.y);
+                       c->x = (ocx <= ev.xmotion.x) ? ocx : ocx - c->w;
+                       c->y = (ocy <= ev.xmotion.y) ? ocy : ocy - c->h;
+                       if(ocx <= ev.xmotion.x)
+                               sticky = (ocy <= ev.xmotion.y) ? TopLeft : BotLeft;
+                       else
+                               sticky = (ocy <= ev.xmotion.y) ? TopRight : BotRight;
+                       resize(c, True, sticky);
                        break;
                case ButtonRelease:
                        XUngrabPointer(dpy, CurrentTime);
@@ -113,34 +101,41 @@ buttonpress(XEvent *e)
 {
        int x;
        Arg a;
-       XButtonPressedEvent *ev = &e->xbutton;
        Client *c;
+       XButtonPressedEvent *ev = &e->xbutton;
 
        if(barwin == ev->window) {
-               x = (arrange == floating) ? textw("~") : 0;
-               for(a.i = 0; a.i < TLast; a.i++) {
+               x = 0;
+               for(a.i = 0; a.i < ntags; a.i++) {
                        x += textw(tags[a.i]);
                        if(ev->x < x) {
-                               view(&a);
-                               break;
+                               if(ev->button == Button1)
+                                       view(&a);
+                               else if(ev->button == Button3)
+                                       toggleview(&a);
+                               return;
                        }
                }
        }
        else if((c = getclient(ev->window))) {
-               if(arrange == tiling && !c->floating)
-                       return;
-               higher(c);
+               focus(c);
                switch(ev->button) {
                default:
                        break;
                case Button1:
-                       mmove(c);
+                       if(!c->ismax && (arrange == dofloat || c->isfloat)) {
+                               restack(c);
+                               movemouse(c);
+                       }
                        break;
                case Button2:
-                       lower(c);
+                       zoom(NULL);
                        break;
                case Button3:
-                       mresize(c);
+                       if(!c->ismax && (arrange == dofloat || c->isfloat)) {
+                               restack(c);
+                               resizemouse(c);
+                       }
                        break;
                }
        }
@@ -149,11 +144,12 @@ buttonpress(XEvent *e)
 static void
 configurerequest(XEvent *e)
 {
+       unsigned long newmask;
+       Client *c;
        XConfigureRequestEvent *ev = &e->xconfigurerequest;
+       XEvent synev;
        XWindowChanges wc;
-       Client *c;
 
-       ev->value_mask &= ~CWSibling;
        if((c = getclient(ev->window))) {
                gravitate(c, True);
                if(ev->value_mask & CWX)
@@ -165,22 +161,46 @@ configurerequest(XEvent *e)
                if(ev->value_mask & CWHeight)
                        c->h = ev->height;
                if(ev->value_mask & CWBorderWidth)
-                       c->border = 1;
+                       c->border = ev->border_width;
                gravitate(c, False);
-               resize(c, True);
+               wc.x = c->x;
+               wc.y = c->y;
+               wc.width = c->w;
+               wc.height = c->h;
+               newmask = ev->value_mask & (~(CWSibling | CWStackMode | CWBorderWidth));
+               if(newmask)
+                       XConfigureWindow(dpy, c->win, newmask, &wc);
+               else {
+                       synev.type = ConfigureNotify;
+                       synev.xconfigure.display = dpy;
+                       synev.xconfigure.event = c->win;
+                       synev.xconfigure.window = c->win;
+                       synev.xconfigure.x = c->x;
+                       synev.xconfigure.y = c->y;
+                       synev.xconfigure.width = c->w;
+                       synev.xconfigure.height = c->h;
+                       synev.xconfigure.border_width = c->border;
+                       synev.xconfigure.above = None;
+                       /* Send synthetic ConfigureNotify */
+                       XSendEvent(dpy, c->win, True, NoEventMask, &synev);
+               }
+               XSync(dpy, False);
+               if(c->isfloat)
+                       resize(c, False, TopLeft);
+               else
+                       arrange(NULL);
+       }
+       else {
+               wc.x = ev->x;
+               wc.y = ev->y;
+               wc.width = ev->width;
+               wc.height = ev->height;
+               wc.border_width = ev->border_width;
+               wc.sibling = ev->above;
+               wc.stack_mode = ev->detail;
+               XConfigureWindow(dpy, ev->window, ev->value_mask, &wc);
+               XSync(dpy, False);
        }
-
-       wc.x = ev->x;
-       wc.y = ev->y;
-       wc.width = ev->width;
-       wc.height = ev->height;
-       wc.border_width = 1;
-       wc.sibling = None;
-       wc.stack_mode = Above;
-       ev->value_mask &= ~CWStackMode;
-       ev->value_mask |= CWBorderWidth;
-       XConfigureWindow(dpy, ev->window, ev->value_mask, &wc);
-       XFlush(dpy);
 }
 
 static void
@@ -196,46 +216,81 @@ destroynotify(XEvent *e)
 static void
 enternotify(XEvent *e)
 {
-       XCrossingEvent *ev = &e->xcrossing;
        Client *c;
+       XCrossingEvent *ev = &e->xcrossing;
 
        if(ev->mode != NotifyNormal || ev->detail == NotifyInferior)
                return;
 
-       if((c = getclient(ev->window)))
+       if((c = getclient(ev->window)) || (c = getctitle(ev->window)))
                focus(c);
-       else if(ev->window == root)
-               issel = True;
-}
-
-static void
-leavenotify(XEvent *e)
-{
-       XCrossingEvent *ev = &e->xcrossing;
-
-       if((ev->window == root) && !ev->same_screen)
+       else if(ev->window == root) {
                issel = True;
+               XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
+               drawall();
+       }
 }
 
 static void
 expose(XEvent *e)
 {
-       XExposeEvent *ev = &e->xexpose;
        Client *c;
+       XExposeEvent *ev = &e->xexpose;
 
        if(ev->count == 0) {
                if(barwin == ev->window)
                        drawstatus();
-               else if((c = gettitle(ev->window)))
+               else if((c = getctitle(ev->window)))
                        drawtitle(c);
        }
 }
 
 static void
+keypress(XEvent *e)
+{
+       static unsigned int len = sizeof(key) / sizeof(key[0]);
+       unsigned int i;
+       KeySym keysym;
+       XKeyEvent *ev = &e->xkey;
+
+       keysym = XKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0);
+       for(i = 0; i < len; i++) {
+               if(keysym == key[i].keysym &&
+                               CLEANMASK(key[i].mod) == CLEANMASK(ev->state))
+               {
+                       if(key[i].func)
+                               key[i].func(&key[i].arg);
+                       return;
+               }
+       }
+}
+
+static void
+leavenotify(XEvent *e)
+{
+       XCrossingEvent *ev = &e->xcrossing;
+
+       if((ev->window == root) && !ev->same_screen) {
+               issel = False;
+               drawall();
+       }
+}
+
+static void
+mappingnotify(XEvent *e)
+{
+       XMappingEvent *ev = &e->xmapping;
+
+       XRefreshKeyboardMapping(ev);
+       if(ev->request == MappingKeyboard)
+               grabkeys();
+}
+
+static void
 maprequest(XEvent *e)
 {
-       XMapRequestEvent *ev = &e->xmaprequest;
        static XWindowAttributes wa;
+       XMapRequestEvent *ev = &e->xmaprequest;
 
        if(!XGetWindowAttributes(dpy, ev->window, &wa))
                return;
@@ -253,30 +308,30 @@ maprequest(XEvent *e)
 static void
 propertynotify(XEvent *e)
 {
-       XPropertyEvent *ev = &e->xproperty;
-       Window trans;
        Client *c;
+       Window trans;
+       XPropertyEvent *ev = &e->xproperty;
 
        if(ev->state == PropertyDelete)
                return; /* ignore */
 
        if((c = getclient(ev->window))) {
-               if(ev->atom == wm_atom[WMProtocols]) {
-                       c->proto = proto(c->win);
+               if(ev->atom == wmatom[WMProtocols]) {
+                       c->proto = getproto(c->win);
                        return;
                }
                switch (ev->atom) {
                        default: break;
                        case XA_WM_TRANSIENT_FOR:
                                XGetTransientForHint(dpy, c->win, &trans);
-                               if(!c->floating && (c->floating = (trans != 0)))
+                               if(!c->isfloat && (c->isfloat = (trans != 0)))
                                        arrange(NULL);
                                break;
                        case XA_WM_NORMAL_HINTS:
                                setsize(c);
                                break;
                }
-               if(ev->atom == XA_WM_NAME || ev->atom == net_atom[NetWMName]) {
+               if(ev->atom == XA_WM_NAME || ev->atom == netatom[NetWMName]) {
                        settitle(c);
                        drawtitle(c);
                }
@@ -292,3 +347,53 @@ unmapnotify(XEvent *e)
        if((c = getclient(ev->window)))
                unmanage(c);
 }
+
+/* extern */
+
+void (*handler[LASTEvent]) (XEvent *) = {
+       [ButtonPress] = buttonpress,
+       [ConfigureRequest] = configurerequest,
+       [DestroyNotify] = destroynotify,
+       [EnterNotify] = enternotify,
+       [LeaveNotify] = leavenotify,
+       [Expose] = expose,
+       [KeyPress] = keypress,
+       [MappingNotify] = mappingnotify,
+       [MapRequest] = maprequest,
+       [PropertyNotify] = propertynotify,
+       [UnmapNotify] = unmapnotify
+};
+
+void
+grabkeys()
+{
+       static unsigned int len = sizeof(key) / sizeof(key[0]);
+       unsigned int i;
+       KeyCode code;
+
+       XUngrabKey(dpy, AnyKey, AnyModifier, root);
+       for(i = 0; i < len; i++) {
+               code = XKeysymToKeycode(dpy, key[i].keysym);
+               XGrabKey(dpy, code, key[i].mod, root, True,
+                               GrabModeAsync, GrabModeAsync);
+               XGrabKey(dpy, code, key[i].mod | LockMask, root, True,
+                               GrabModeAsync, GrabModeAsync);
+               XGrabKey(dpy, code, key[i].mod | numlockmask, root, True,
+                               GrabModeAsync, GrabModeAsync);
+               XGrabKey(dpy, code, key[i].mod | numlockmask | LockMask, root, True,
+                               GrabModeAsync, GrabModeAsync);
+       }
+}
+
+void
+procevent()
+{
+       XEvent ev;
+
+       while(XPending(dpy)) {
+               XNextEvent(dpy, &ev);
+               if(handler[ev.type])
+                       (handler[ev.type])(&ev); /* call handler */
+       }
+}
+