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prepared 0.3
[dwm.git] / client.c
index ee659c4..3b6a0e1 100644 (file)
--- a/client.c
+++ b/client.c
  * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
  * See LICENSE file for license details.
  */
+#include "dwm.h"
 
 #include <stdlib.h>
 #include <string.h>
 #include <X11/Xatom.h>
+#include <X11/Xutil.h>
 
-#include "util.h"
-#include "wm.h"
+/* static functions */
 
-#define CLIENT_MASK            (StructureNotifyMask | PropertyChangeMask | EnterWindowMask)
+static void
+resizetitle(Client *c)
+{
+       int i;
+
+       c->bw = 0;
+       for(i = 0; i < TLast; i++)
+               if(c->tags[i])
+                       c->bw += textw(c->tags[i]);
+       c->bw += textw(c->name);
+       if(c->bw > *c->w)
+               c->bw = *c->w + 2;
+       c->bx = *c->x + *c->w - c->bw + 2;
+       c->by = *c->y;
+       if(c->tags[tsel])
+               XMoveResizeWindow(dpy, c->title, c->bx, c->by, c->bw, c->bh);
+       else
+               XMoveResizeWindow(dpy, c->title, c->bx + 2 * sw, c->by, c->bw, c->bh);
+
+}
+
+static int
+xerrordummy(Display *dsply, XErrorEvent *ee)
+{
+       return 0;
+}
+
+/* extern functions */
 
 void
-update_name(Client *c)
+ban(Client *c)
 {
-       XTextProperty name;
-       int n;
-       char **list = NULL;
+       XMoveWindow(dpy, c->win, *c->x + 2 * sw, *c->y);
+       XMoveWindow(dpy, c->title, c->bx + 2 * sw, c->by);
+}
 
-       name.nitems = 0;
-       c->name[0] = 0;
-       XGetTextProperty(dpy, c->win, &name, net_atom[NetWMName]);
-       if(!name.nitems)
-               XGetWMName(dpy, c->win, &name);
-       if(!name.nitems)
+void
+focus(Client *c)
+{
+       Client *old = sel;
+       XEvent ev;
+
+       sel = c;
+       if(old && old != c)
+               drawtitle(old);
+       drawtitle(c);
+       XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
+       XSync(dpy, False);
+       while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
+}
+
+void
+focusnext(Arg *arg)
+{
+       Client *c;
+   
+       if(!sel)
                return;
-       if(name.encoding == XA_STRING)
-               strncpy(c->name, (char *)name.value, sizeof(c->name));
-       else {
-               if(XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success
-                               && n > 0 && *list)
-               {
-                       strncpy(c->name, *list, sizeof(c->name));
-                       XFreeStringList(list);
-               }
+
+       if(!(c = getnext(sel->next, tsel)))
+               c = getnext(clients, tsel);
+       if(c) {
+               higher(c);
+               c->revert = sel;
+               focus(c);
        }
-       XFree(name.value);
 }
 
 void
-update_size(Client *c)
+focusprev(Arg *arg)
 {
-       XSizeHints size;
-       long msize;
-       if(!XGetWMNormalHints(dpy, c->win, &size, &msize) || !size.flags)
-               size.flags = PSize;
-       c->flags = size.flags;
-       if(c->flags & PBaseSize) {
-               c->basew = size.base_width;
-               c->baseh = size.base_height;
+       Client *c;
+
+       if(!sel)
+               return;
+
+       if((c = sel->revert && sel->revert->tags[tsel] ? sel->revert : NULL)) {
+               higher(c);
+               focus(c);
        }
-       else
-               c->basew = c->baseh = 0;
-       if(c->flags & PResizeInc) {
-               c->incw = size.width_inc;
-               c->inch = size.height_inc;
+}
+
+Client *
+getclient(Window w)
+{
+       Client *c;
+       for(c = clients; c; c = c->next)
+               if(c->win == w)
+                       return c;
+       return NULL;
+}
+
+Client *
+getctitle(Window w)
+{
+       Client *c;
+       for(c = clients; c; c = c->next)
+               if(c->title == w)
+                       return c;
+       return NULL;
+}
+
+void
+gravitate(Client *c, Bool invert)
+{
+       int dx = 0, dy = 0;
+
+       switch(c->grav) {
+       case StaticGravity:
+       case NorthWestGravity:
+       case NorthGravity:
+       case NorthEastGravity:
+               dy = c->border;
+               break;
+       case EastGravity:
+       case CenterGravity:
+       case WestGravity:
+               dy = -(*c->h / 2) + c->border;
+               break;
+       case SouthEastGravity:
+       case SouthGravity:
+       case SouthWestGravity:
+               dy = -(*c->h);
+               break;
+       default:
+               break;
        }
-       else
-               c->incw = c->inch = 0;
-       if(c->flags & PMaxSize) {
-               c->maxw = size.max_width;
-               c->maxh = size.max_height;
+
+       switch (c->grav) {
+       case StaticGravity:
+       case NorthWestGravity:
+       case WestGravity:
+       case SouthWestGravity:
+               dx = c->border;
+               break;
+       case NorthGravity:
+       case CenterGravity:
+       case SouthGravity:
+               dx = -(*c->w / 2) + c->border;
+               break;
+       case NorthEastGravity:
+       case EastGravity:
+       case SouthEastGravity:
+               dx = -(*c->w + c->border);
+               break;
+       default:
+               break;
        }
-       else
-               c->maxw = c->maxh = 0;
-       if(c->flags & PMinSize) {
-               c->minw = size.min_width;
-               c->minh = size.min_height;
+
+       if(invert) {
+               dx = -dx;
+               dy = -dy;
        }
-       else
-               c->minw = c->minh = 0;
+       *c->x += dx;
+       *c->y += dy;
 }
 
 void
-focus(Client *c)
+higher(Client *c)
 {
-       Client **l, *old;
-
-       old = stack;
-       for(l=&stack; *l && *l != c; l=&(*l)->snext);
-       eassert(*l == c);
-       *l = c->snext;
-       c->snext = stack;
-       stack = c;
        XRaiseWindow(dpy, c->win);
        XRaiseWindow(dpy, c->title);
-       XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
-       if(old && old != c) {
-               XMapWindow(dpy, old->title);
-               draw_client(old);
-       }
-       XUnmapWindow(dpy, c->title);
-       draw_bar();
-       discard_events(EnterWindowMask);
-       XFlush(dpy);
+}
+
+void
+killclient(Arg *arg)
+{
+       if(!sel)
+               return;
+       if(sel->proto & WM_PROTOCOL_DELWIN)
+               sendevent(sel->win, wmatom[WMProtocols], wmatom[WMDelete]);
+       else
+               XKillClient(dpy, sel->win);
+}
+
+void
+lower(Client *c)
+{
+       XLowerWindow(dpy, c->title);
+       XLowerWindow(dpy, c->win);
 }
 
 void
 manage(Window w, XWindowAttributes *wa)
 {
-       Client *c, **l;
+       int diff;
+       Client *c;
        XSetWindowAttributes twa;
+       Window trans;
 
        c = emallocz(sizeof(Client));
        c->win = w;
-       c->tx = c->x = wa->x;
-       c->ty = c->y = wa->y;
-       c->tw = c->w = wa->width;
-       c->h = wa->height;
-       c->th = barrect.height;
-       update_size(c);
-       XSetWindowBorderWidth(dpy, c->win, 1);
-       XSetWindowBorder(dpy, c->win, brush.border);
-       XSelectInput(dpy, c->win, CLIENT_MASK);
-       XGetTransientForHint(dpy, c->win, &c->trans);
+       c->bx = c->fx = c->tx = wa->x;
+       c->by = c->fy = c->ty = wa->y;
+       c->bw = c->fw = c->tw = wa->width;
+       c->fh = c->th = wa->height;
+       c->bh = bh;
+
+       diff = sw - c->fw;
+       c->fx = random() % (diff ? diff : 1);
+       diff = sh - c->fh - bh;
+       c->fy = random() % (diff ? diff : 1);
+
+       if(c->fy < bh)
+               c->by = c->fy = c->ty = bh;
+
+       c->border = 1;
+       c->proto = getproto(c->win);
+       setsize(c);
+       XSelectInput(dpy, c->win,
+                       StructureNotifyMask | PropertyChangeMask | EnterWindowMask);
+       XGetTransientForHint(dpy, c->win, &trans);
        twa.override_redirect = 1;
        twa.background_pixmap = ParentRelative;
        twa.event_mask = ExposureMask;
 
-       c->title = XCreateWindow(dpy, root, c->tx, c->ty, c->tw, c->th,
+       c->title = XCreateWindow(dpy, root, c->bx, c->by, c->bw, c->bh,
                        0, DefaultDepth(dpy, screen), CopyFromParent,
                        DefaultVisual(dpy, screen),
                        CWOverrideRedirect | CWBackPixmap | CWEventMask, &twa);
-       update_name(c);
-
-       for(l=&clients; *l; l=&(*l)->next);
-       c->next = *l; /* *l == nil */
-       *l = c;
-       c->snext = stack;
-       stack = c;
-       XMapWindow(dpy, c->win);
-       XMapWindow(dpy, c->title);
+
+       settags(c);
+
+       c->next = clients;
+       clients = c;
+
+       XGrabButton(dpy, Button1, ControlMask, c->win, False, ButtonPressMask,
+                       GrabModeAsync, GrabModeSync, None, None);
        XGrabButton(dpy, Button1, Mod1Mask, c->win, False, ButtonPressMask,
                        GrabModeAsync, GrabModeSync, None, None);
        XGrabButton(dpy, Button2, Mod1Mask, c->win, False, ButtonPressMask,
                        GrabModeAsync, GrabModeSync, None, None);
        XGrabButton(dpy, Button3, Mod1Mask, c->win, False, ButtonPressMask,
                        GrabModeAsync, GrabModeSync, None, None);
-       resize(c);
-       focus(c);
+
+       if(!c->isfloat)
+               c->isfloat = trans
+                       || ((c->maxw == c->minw) && (c->maxh == c->minh));
+
+       setgeom(c);
+       settitle(c);
+
+       arrange(NULL);
+
+       /* mapping the window now prevents flicker */
+       if(c->tags[tsel]) {
+               XMapRaised(dpy, c->win);
+               XMapRaised(dpy, c->title);
+               focus(c);
+       }
+       else {
+               XMapRaised(dpy, c->win);
+               XMapRaised(dpy, c->title);
+       }
 }
 
 void
-resize(Client *c)
+maximize(Arg *arg)
+{
+       if(!sel)
+               return;
+       *sel->x = sx;
+       *sel->y = sy + bh;
+       *sel->w = sw - 2 * sel->border;
+       *sel->h = sh - 2 * sel->border - bh;
+       higher(sel);
+       resize(sel, False, TopLeft);
+}
+
+void
+pop(Client *c)
+{
+       Client **l;
+       for(l = &clients; *l && *l != c; l = &(*l)->next);
+       *l = c->next;
+
+       c->next = clients; /* pop */
+       clients = c;
+       arrange(NULL);
+}
+
+void
+resize(Client *c, Bool inc, Corner sticky)
 {
        XConfigureEvent e;
+       int right = *c->x + *c->w;
+       int bottom = *c->y + *c->h;
+
+       if(inc) {
+               if(c->incw)
+                       *c->w -= (*c->w - c->basew) % c->incw;
+               if(c->inch)
+                       *c->h -= (*c->h - c->baseh) % c->inch;
+       }
+       if(*c->x > sw) /* might happen on restart */
+               *c->x = sw - *c->w;
+       if(*c->y > sh)
+               *c->y = sh - *c->h;
+       if(c->minw && *c->w < c->minw)
+               *c->w = c->minw;
+       if(c->minh && *c->h < c->minh)
+               *c->h = c->minh;
+       if(c->maxw && *c->w > c->maxw)
+               *c->w = c->maxw;
+       if(c->maxh && *c->h > c->maxh)
+               *c->h = c->maxh;
+       if(sticky == TopRight || sticky == BotRight)
+               *c->x = right - *c->w;
+       if(sticky == BotLeft || sticky == BotRight)
+               *c->y = bottom - *c->h;
+
+       resizetitle(c);
+       XSetWindowBorderWidth(dpy, c->win, 1);
+       XMoveResizeWindow(dpy, c->win, *c->x, *c->y, *c->w, *c->h);
 
-       XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h);
        e.type = ConfigureNotify;
        e.event = c->win;
        e.window = c->win;
-       e.x = c->x;
-       e.y = c->y;
-       e.width = c->w;
-       e.height = c->h;
-       e.border_width = 0;
+       e.x = *c->x;
+       e.y = *c->y;
+       e.width = *c->w;
+       e.height = *c->h;
+       e.border_width = c->border;
        e.above = None;
        e.override_redirect = False;
-       XSelectInput(dpy, c->win, CLIENT_MASK & ~StructureNotifyMask);
        XSendEvent(dpy, c->win, False, StructureNotifyMask, (XEvent *)&e);
-       XSelectInput(dpy, c->win, CLIENT_MASK);
-       XFlush(dpy);
+       XSync(dpy, False);
 }
 
-static int
-dummy_error_handler(Display *dpy, XErrorEvent *error)
+void
+setgeom(Client *c)
 {
-       return 0;
+       if((arrange == dotile) && !c->isfloat) {
+               c->x = &c->tx;
+               c->y = &c->ty;
+               c->w = &c->tw;
+               c->h = &c->th;
+       }
+       else {
+               c->x = &c->fx;
+               c->y = &c->fy;
+               c->w = &c->fw;
+               c->h = &c->fh;
+       }
+}
+
+void
+setsize(Client *c)
+{
+       XSizeHints size;
+       long msize;
+       if(!XGetWMNormalHints(dpy, c->win, &size, &msize) || !size.flags)
+               size.flags = PSize;
+       c->flags = size.flags;
+       if(c->flags & PBaseSize) {
+               c->basew = size.base_width;
+               c->baseh = size.base_height;
+       }
+       else
+               c->basew = c->baseh = 0;
+       if(c->flags & PResizeInc) {
+               c->incw = size.width_inc;
+               c->inch = size.height_inc;
+       }
+       else
+               c->incw = c->inch = 0;
+       if(c->flags & PMaxSize) {
+               c->maxw = size.max_width;
+               c->maxh = size.max_height;
+       }
+       else
+               c->maxw = c->maxh = 0;
+       if(c->flags & PMinSize) {
+               c->minw = size.min_width;
+               c->minh = size.min_height;
+       }
+       else
+               c->minw = c->minh = 0;
+       if(c->flags & PWinGravity)
+               c->grav = size.win_gravity;
+       else
+               c->grav = NorthWestGravity;
+}
+
+void
+settitle(Client *c)
+{
+       XTextProperty name;
+       int n;
+       char **list = NULL;
+
+       name.nitems = 0;
+       c->name[0] = 0;
+       XGetTextProperty(dpy, c->win, &name, netatom[NetWMName]);
+       if(!name.nitems)
+               XGetWMName(dpy, c->win, &name);
+       if(!name.nitems)
+               return;
+       if(name.encoding == XA_STRING)
+               strncpy(c->name, (char *)name.value, sizeof(c->name));
+       else {
+               if(XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success
+                               && n > 0 && *list)
+               {
+                       strncpy(c->name, *list, sizeof(c->name));
+                       XFreeStringList(list);
+               }
+       }
+       XFree(name.value);
+       resizetitle(c);
 }
 
 void
@@ -176,63 +429,42 @@ unmanage(Client *c)
        Client **l;
 
        XGrabServer(dpy);
-       XSetErrorHandler(dummy_error_handler);
+       XSetErrorHandler(xerrordummy);
 
        XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
        XDestroyWindow(dpy, c->title);
 
-       for(l=&clients; *l && *l != c; l=&(*l)->next);
-       eassert(*l == c);
+       for(l = &clients; *l && *l != c; l = &(*l)->next);
        *l = c->next;
-       for(l=&stack; *l && *l != c; l=&(*l)->snext);
-       eassert(*l == c);
-       *l = c->snext;
+       for(l = &clients; *l; l = &(*l)->next)
+               if((*l)->revert == c)
+                       (*l)->revert = NULL;
+       if(sel == c)
+               sel = sel->revert ? sel->revert : clients;
+
        free(c);
 
-       XFlush(dpy);
-       XSetErrorHandler(error_handler);
+       XSync(dpy, False);
+       XSetErrorHandler(xerror);
        XUngrabServer(dpy);
-       if(stack)
-               focus(stack);
-}
-
-Client *
-gettitle(Window w)
-{
-       Client *c;
-       for(c = clients; c; c = c->next)
-               if(c->title == w)
-                       return c;
-       return NULL;
-}
-
-Client *
-getclient(Window w)
-{
-       Client *c;
-       for(c = clients; c; c = c->next)
-               if(c->win == w)
-                       return c;
-       return NULL;
+       arrange(NULL);
+       if(sel)
+               focus(sel);
 }
 
 void
-draw_client(Client *c)
+zoom(Arg *arg)
 {
-       if(c == stack)
-               draw_bar();
+       Client *c;
 
-       c->tw = textwidth(&brush.font, c->name) + labelheight(&brush.font);
-       c->tx = c->x + c->w - c->tw + 2;
-       c->ty = c->y;
-       XMoveResizeWindow(dpy, c->title, c->tx, c->ty, c->tw, c->th);
+       if(!sel)
+               return;
 
-       brush.rect.x = brush.rect.y = 0;
-       brush.rect.width = c->tw;
-       brush.rect.height = c->th;
+       if(sel == getnext(clients, tsel) && sel->next)  {
+               if((c = getnext(sel->next, tsel)))
+                       sel = c;
+       }
 
-       draw(dpy, &brush, True, c->name);
-       XCopyArea(dpy, brush.drawable, c->title, brush.gc,
-                       0, 0, c->tw, c->th, 0, 0);
-       XFlush(dpy);
+       pop(sel);
+       focus(sel);
 }