]> Pileus Git - wmpus/blobdiff - sys-x11.c
Try to improve focus speed
[wmpus] / sys-x11.c
index c606d9a30beec484460930b293c9a0b31f70ae0b..77555a9cb05a309ec3531f2d36a0bd48f5837fad 100644 (file)
--- a/sys-x11.c
+++ b/sys-x11.c
@@ -1,3 +1,19 @@
+/*
+ * Copyright (c) 2011, Andy Spencer <andy753421@gmail.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ */
+
+#define _GNU_SOURCE
 #include <stdio.h>
 #include <stdlib.h>
 #include <search.h>
 #include <X11/Xproto.h>
 #include <X11/Xatom.h>
 #include <X11/keysym.h>
+#include <X11/extensions/Xinerama.h>
 
 #include "util.h"
+#include "conf.h"
 #include "sys.h"
 #include "wm.h"
 
+/* Configuration */
+static int BORDER     = 2;
+static int NO_CAPTURE = 0;
+
 /* Internal structures */
 struct win_sys {
        Window   xid;
@@ -18,6 +40,7 @@ struct win_sys {
        struct {
                int left, right, top, bottom;
        } strut;
+       state_t  state;
 };
 
 typedef struct {
@@ -29,10 +52,17 @@ typedef enum {
        wm_proto, wm_focus, net_strut, natoms
 } atom_t;
 
+typedef enum {
+       clr_focus, clr_unfocus, clr_urgent, ncolors
+} color_t;
+
 /* Global data */
-static void *win_cache = NULL;
+static int   running;
+static void *cache;
 static Atom atoms[natoms];
 static int (*xerrorxlib)(Display *, XErrorEvent *);
+static unsigned long colors[ncolors];
+static list_t *screens;
 
 /* Conversion functions */
 static keymap_t key2sym[] = {
@@ -121,8 +151,25 @@ static Window getfocus(win_t *root, XEvent *event)
        return focus;
 }
 
-/* Helpers */
-static int add_strut(win_t *root, win_t *win)
+/* Strut functions
+ *   Struts are spaces at the edges of the screen that are used by
+ *   toolbars and statusbars such as dzen. */
+static int strut_copy(win_t *to, win_t *from, int scale)
+{
+       int left   = from->sys->strut.left;
+       int right  = from->sys->strut.right;
+       int top    = from->sys->strut.top;
+       int bottom = from->sys->strut.bottom;
+       if (left == 0 && right == 0 && top == 0 && bottom == 0)
+               return 0;
+       to->x += scale*(left      );
+       to->y += scale*(top       );
+       to->w -= scale*(left+right);
+       to->h -= scale*(top+bottom);
+       return 1;
+}
+
+static int strut_add(win_t *root, win_t *win)
 {
        /* Get X11 strut data */
        Atom ret_type;
@@ -135,38 +182,20 @@ static int add_strut(win_t *root, win_t *win)
        if (status != Success || ret_size != 32 || ret_items != 4)
                return 0;
 
-       int left   = ((int*)xdata)[0];
-       int right  = ((int*)xdata)[1];
-       int top    = ((int*)xdata)[2];
-       int bottom = ((int*)xdata)[3];
-       if (left == 0 && right == 0 && top == 0 && bottom == 0)
-               return 0;
-
-       win->sys->strut.left   = left;
-       win->sys->strut.right  = right;
-       win->sys->strut.top    = top;
-       win->sys->strut.bottom = bottom;
-       root->x += left;
-       root->y += top;
-       root->w -= left+right;
-       root->h -= top+bottom;
-       return 1;
+       win->sys->strut.left   = ((int*)xdata)[0];
+       win->sys->strut.right  = ((int*)xdata)[1];
+       win->sys->strut.top    = ((int*)xdata)[2];
+       win->sys->strut.bottom = ((int*)xdata)[3];
+       for (list_t *cur = screens; cur; cur = cur->next)
+               strut_copy(cur->data, win, 1);
+       return strut_copy(root, win, 1);
 }
 
-static int del_strut(win_t *root, win_t *win)
+static int strut_del(win_t *root, win_t *win)
 {
-       int left   = win->sys->strut.left;
-       int right  = win->sys->strut.right;
-       int top    = win->sys->strut.top;
-       int bottom = win->sys->strut.bottom;
-       if (left == 0 && right == 0 && top == 0 && bottom == 0)
-               return 0;
-
-       root->x -= left;
-       root->y -= top;
-       root->w += left+right;
-       root->h += top+bottom;
-       return 1;
+       for (list_t *cur = screens; cur; cur = cur->next)
+               strut_copy(cur->data, win, -1);
+       return strut_copy(root, win, -1);
 }
 
 /* Window functions */
@@ -184,7 +213,9 @@ static win_t *win_new(Display *dpy, Window xid)
        win->sys      = new0(win_sys_t);
        win->sys->dpy = dpy;
        win->sys->xid = xid;
-       printf("%p = %p, %d\n", win, dpy, (int)xid);
+       printf("win_new: %p = %p, %d (%d,%d %dx%d)\n",
+                       win, dpy, (int)xid,
+                       win->x, win->y, win->w, win->h);
        return win;
 }
 
@@ -206,20 +237,25 @@ static win_t *win_find(Display *dpy, Window xid, int create)
        win_sys_t sys = {.dpy=dpy, .xid=xid};
        win_t     tmp = {.sys=&sys};
        win_t **old = NULL, *new = NULL;
-       if ((old = tfind(&tmp, &win_cache, win_cmp)))
+       if ((old = tfind(&tmp, &cache, win_cmp)))
                return *old;
        if (create && (new = win_new(dpy,xid)))
-               tsearch(new, &win_cache, win_cmp);
+               tsearch(new, &cache, win_cmp);
        return new;
 }
 
-static void win_remove(win_t *win)
+static void win_free(win_t *win)
 {
-       tdelete(win, &win_cache, win_cmp);
        free(win->sys);
        free(win);
 }
 
+static void win_remove(win_t *win)
+{
+       tdelete(win, &cache, win_cmp);
+       win_free(win);
+}
+
 static int win_viewable(win_t *win)
 {
        XWindowAttributes attr;
@@ -229,15 +265,25 @@ static int win_viewable(win_t *win)
                return True;
 }
 
+/* Drawing functions */
+static unsigned long get_color(Display *dpy, const char *name)
+{
+       XColor color;
+       int screen = DefaultScreen(dpy);
+       Colormap cmap = DefaultColormap(dpy, screen);
+       XAllocNamedColor(dpy, cmap, name, &color, &color);
+       return color.pixel;
+}
+
 /* Callbacks */
 static void process_event(int type, XEvent *ev, win_t *root)
 {
        Display  *dpy = root->sys->dpy;
        win_t *win = NULL;
-       printf("event: %d\n", type);
+       //printf("event: %d\n", type);
 
        /* Common data for all these events ... */
-       ptr_t ptr; mod_t mod;
+       ptr_t ptr = {}; mod_t mod = {};
        if (type == KeyPress    || type == KeyRelease    ||
            type == ButtonPress || type == ButtonRelease ||
            type == MotionNotify) {
@@ -252,15 +298,25 @@ static void process_event(int type, XEvent *ev, win_t *root)
        if (type == KeyPress) {
                while (XCheckTypedEvent(dpy, KeyPress, ev));
                KeySym sym = XKeycodeToKeysym(dpy, ev->xkey.keycode, 0);
+               printf("got key %c %hhx\n", x2key(sym), mod2int(mod));
                wm_handle_key(win, x2key(sym), mod, ptr);
        }
        else if (type == KeyRelease) {
                //printf("release: %d\n", type);
        }
        else if (type == ButtonPress) {
-               wm_handle_key(win, x2btn(ev->xbutton.button), mod, ptr);
-               XGrabPointer(dpy, ev->xbutton.root, True, PointerMotionMask|ButtonReleaseMask,
-                               GrabModeAsync, GrabModeAsync, None, None, CurrentTime);
+               if (wm_handle_key(win, x2btn(ev->xbutton.button), mod, ptr))
+                       XGrabPointer(dpy, ev->xbutton.root, True, PointerMotionMask|ButtonReleaseMask,
+                                       GrabModeAsync, GrabModeAsync, None, None, CurrentTime);
+               else {
+                       printf("resending event\n");
+                       XSendEvent(win->sys->dpy, ev->xbutton.window,    True,  NoEventMask, ev);
+                       XSendEvent(win->sys->dpy, ev->xbutton.window,    False, NoEventMask, ev);
+                       XSendEvent(win->sys->dpy, ev->xbutton.root,      True,  NoEventMask, ev);
+                       XSendEvent(win->sys->dpy, ev->xbutton.root,      False, NoEventMask, ev);
+                       XSendEvent(win->sys->dpy, ev->xbutton.subwindow, True,  NoEventMask, ev);
+                       XSendEvent(win->sys->dpy, ev->xbutton.subwindow, False, NoEventMask, ev);
+               }
        }
        else if (type == ButtonRelease) {
                XUngrabPointer(dpy, CurrentTime);
@@ -277,7 +333,7 @@ static void process_event(int type, XEvent *ev, win_t *root)
                        wm_handle_key(win, key, MOD(), PTR());
        }
        else if (type == FocusIn || type == FocusOut) {
-               printf("focus: %d\n", type);
+               //printf("focus: %d\n", type);
                key_t key = FocusIn ? key_focus : key_unfocus;
                if ((win = win_find(dpy,ev->xfocus.window,0)))
                        wm_handle_key(win, key, MOD(), PTR());
@@ -289,30 +345,41 @@ static void process_event(int type, XEvent *ev, win_t *root)
                printf("map: %d\n", type);
        }
        else if (type == UnmapNotify) {
-               //printf("unmap: %d\n", type);
-               if ((win = win_find(dpy,ev->xunmap.window,0))) {
-                       if (!del_strut(root, win))
+               if ((win = win_find(dpy,ev->xunmap.window,0)) &&
+                    win->sys->state == st_show) {
+                       if (!strut_del(root, win))
                                wm_remove(win);
                        else
                                wm_update();
-                       win_remove(win);
+                       win->sys->state = st_hide;
                }
        }
+       else if (type == DestroyNotify) {
+               //printf("destroy: %d\n", type);
+               if ((win = win_find(dpy,ev->xdestroywindow.window,0)))
+                       win_remove(win);
+       }
        else if (type == ConfigureRequest) {
                XConfigureRequestEvent *cre = &ev->xconfigurerequest;
-               XWindowChanges wc = {
-                       .x     = cre->x,     .y      = cre->y,
-                       .width = cre->width, .height = cre->height,
-               };
                printf("configure_req: %d - %x, (0x%lx) %dx%d @ %d,%d\n",
                                type, (int)cre->window, cre->value_mask,
                                cre->height, cre->width, cre->x, cre->y);
-               XConfigureWindow(dpy, cre->window, cre->value_mask, &wc);
+               XConfigureWindow(dpy, cre->window, cre->value_mask, &(XWindowChanges){
+                       .x      = cre->x,
+                       .y      = cre->y,
+                       .width  = cre->width,
+                       .height = cre->height,
+               });
+
+               /* This seems necessary for, but causes flicker
+                * there could be a better way to do this */
+               if ((win = win_find(dpy,ev->xmaprequest.window,0)))
+                       sys_move(win, win->x, win->y, win->w, win->h);
        }
        else if (type == MapRequest) {
                printf("map_req: %d\n", type);
                if ((win = win_find(dpy,ev->xmaprequest.window,1))) {
-                       if (!add_strut(root, win))
+                       if (!strut_add(root, win))
                                wm_insert(win);
                        else
                                wm_update();
@@ -339,18 +406,19 @@ static int xerror(Display *dpy, XErrorEvent *err)
        return xerrorxlib(dpy, err);
 }
 
-/*****************
- * Sys functions *
- *****************/
+/********************
+ * System functions *
+ ********************/
 void sys_move(win_t *win, int x, int y, int w, int h)
 {
        //printf("sys_move: %p - %d,%d  %dx%d\n", win, x, y, w, h);
-       win->x = MAX(x,0); win->y = MAX(y,0);
-       win->w = MAX(w,1); win->h = MAX(h,1);
-       XMoveResizeWindow(win->sys->dpy, win->sys->xid,
-                       win->x, win->y, win->w, win->h);
+       int b = 2*BORDER;
+       win->x = x; win->y = y;
+       win->w = MAX(w,1+b); win->h = MAX(h,1+b);
+       w      = MAX(w-b,1); h      = MAX(h-b,1);
+       XMoveResizeWindow(win->sys->dpy, win->sys->xid, x, y, w, h);
 
-       /* Flush events, so moving window doesn't cuase re-focus
+       /* Flush events, so moving window doesn't cause re-focus
         * There's probably a better way to do this */
        XEvent ev;
        XSync(win->sys->dpy, False);
@@ -366,20 +434,52 @@ void sys_raise(win_t *win)
 
 void sys_focus(win_t *win)
 {
-       printf("sys_focus: %p\n", win);
-       XEvent ev = {
+       //printf("sys_focus: %p\n", win);
+
+       /* Set border on focused window */
+       static win_t *last = NULL;
+       if (last)
+               XSetWindowBorder(last->sys->dpy, last->sys->xid, colors[clr_unfocus]);
+       XSetWindowBorder(win->sys->dpy, win->sys->xid, colors[clr_focus]);
+       XSetWindowBorderWidth(win->sys->dpy, win->sys->xid, BORDER);
+       last = win;
+
+       /* Set actual focus */
+       XSetInputFocus(win->sys->dpy, win->sys->xid,
+                       RevertToPointerRoot, CurrentTime);
+       XSendEvent(win->sys->dpy, win->sys->xid, False, NoEventMask, &(XEvent){
                .type                 = ClientMessage,
                .xclient.window       = win->sys->xid,
                .xclient.message_type = atoms[wm_proto],
                .xclient.format       = 32,
                .xclient.data.l[0]    = atoms[wm_focus],
                .xclient.data.l[1]    = CurrentTime,
-       };
-       XSetInputFocus(win->sys->dpy, win->sys->xid,
-                       RevertToPointerRoot, CurrentTime);
-       //XSetInputFocus(win->sys->dpy, PointerRoot,
-       //              RevertToPointerRoot, CurrentTime);
-       XSendEvent(win->sys->dpy, win->sys->xid, False, NoEventMask, &ev);
+       });
+}
+
+void sys_show(win_t *win, state_t state)
+{
+       win->sys->state = state;
+       switch (state) {
+       case st_show:
+               printf("sys_show: show\n");
+               XMapWindow(win->sys->dpy, win->sys->xid);
+               XSync(win->sys->dpy, False);
+               return;
+       case st_full:
+               printf("sys_show: full\n");
+               return;
+       case st_shade:
+               printf("sys_show: shade\n");
+               return;
+       case st_icon:
+               printf("sys_show: icon\n");
+               return;
+       case st_hide:
+               printf("sys_show: hide\n");
+               XUnmapWindow(win->sys->dpy, win->sys->xid);
+               return;
+       }
 }
 
 void sys_watch(win_t *win, Key_t key, mod_t mod)
@@ -389,7 +489,7 @@ void sys_watch(win_t *win, Key_t key, mod_t mod)
        XGetWindowAttributes(win->sys->dpy, win->sys->xid, &attr);
        long mask = attr.your_event_mask;
        if (key_mouse0 <= key && key <= key_mouse7)
-               XGrabButton(win->sys->dpy, btn2x(key), mod2x(mod), win->sys->xid, True,
+               XGrabButton(win->sys->dpy, btn2x(key), mod2x(mod), win->sys->xid, False,
                                mod.up ? ButtonReleaseMask : ButtonPressMask,
                                GrabModeAsync, GrabModeAsync, None, None);
        else if (key == key_enter)
@@ -403,42 +503,108 @@ void sys_watch(win_t *win, Key_t key, mod_t mod)
                                mod2x(mod), win->sys->xid, True, GrabModeAsync, GrabModeAsync);
 }
 
+void sys_unwatch(win_t *win, Key_t key, mod_t mod)
+{
+       if (key_mouse0 <= key && key <= key_mouse7)
+               XUngrabButton(win->sys->dpy, btn2x(key), mod2x(mod), win->sys->xid);
+}
+
+list_t *sys_info(win_t *win)
+{
+       /* Use global copy of screens so we can add struts */
+       if (screens == NULL) {
+               /* Add Xinerama screens */
+               int n = 0;
+               XineramaScreenInfo *info = NULL;
+               if (XineramaIsActive(win->sys->dpy))
+                       info = XineramaQueryScreens(win->sys->dpy, &n);
+               for (int i = 0; i < n; i++) {
+                       win_t *screen = new0(win_t);
+                       screen->x = info[i].x_org;
+                       screen->y = info[i].y_org;
+                       screen->w = info[i].width;
+                       screen->h = info[i].height;
+                       screens = list_append(screens, screen);
+               }
+       }
+       if (screens == NULL) {
+               /* No xinerama support */
+               win_t *screen = new0(win_t);
+               *screen = *win;
+               screens = list_insert(NULL, screen);
+       }
+       return screens;
+}
+
 win_t *sys_init(void)
 {
        Display *dpy;
        Window   xid;
+
+       /* Load configuration */
+       BORDER     = conf_get_int("main.border",     BORDER);
+       NO_CAPTURE = conf_get_int("main.no-capture", NO_CAPTURE);
+
+       /* Open the display */
        if (!(dpy = XOpenDisplay(NULL)))
                error("Unable to get display");
        if (!(xid = DefaultRootWindow(dpy)))
                error("Unable to get root window");
+
+       /* Setup X11 data */
        atoms[wm_proto]  = XInternAtom(dpy, "WM_PROTOCOLS",  False);
        atoms[wm_focus]  = XInternAtom(dpy, "WM_TAKE_FOCUS", False);
        atoms[net_strut] = XInternAtom(dpy, "_NET_WM_STRUT", False);
+
+       colors[clr_focus]   = get_color(dpy, "#a0a0ff");
+       colors[clr_unfocus] = get_color(dpy, "#101066");
+       colors[clr_urgent]  = get_color(dpy, "#ff0000");
+       printf("colors = #%06lx #%06lx #%06lx\n", colors[0], colors[1], colors[2]);
+
+       /* Select window management events */
        XSelectInput(dpy, xid, SubstructureRedirectMask|SubstructureNotifyMask);
-       XSetInputFocus(dpy, None, RevertToNone, CurrentTime);
        xerrorxlib = XSetErrorHandler(xerror);
+
        return win_find(dpy, xid, 1);
 }
 
 void sys_run(win_t *root)
 {
        /* Add each initial window */
-       unsigned int nkids;
-       Window par, xid, *kids = NULL;
-       if (XQueryTree(root->sys->dpy, root->sys->xid,
-                               &par, &xid, &kids, &nkids))
-               for(int i = 0; i < nkids; i++) {
-                       win_t *win = win_find(root->sys->dpy, kids[i], 1);
-                       if (win && win_viewable(win) && !add_strut(root,win))
-                               wm_insert(win);
+       if (!NO_CAPTURE) {
+               unsigned int nkids;
+               Window par, xid, *kids = NULL;
+               if (XQueryTree(root->sys->dpy, root->sys->xid,
+                                       &par, &xid, &kids, &nkids)) {
+                       for(int i = 0; i < nkids; i++) {
+                               win_t *win = win_find(root->sys->dpy, kids[i], 1);
+                               if (win && win_viewable(win) && !strut_add(root,win))
+                                       wm_insert(win);
+                       }
+                       XFree(kids);
                }
-       wm_update(); // For struts
+               wm_update(); // For struts
+       }
 
        /* Main loop */
-       for(;;)
+       running = 1;
+       while (running)
        {
                XEvent ev;
                XNextEvent(root->sys->dpy, &ev);
                process_event(ev.type, &ev, root);
        }
 }
+
+void sys_exit(void)
+{
+       running = 0;
+}
+
+void sys_free(win_t *root)
+{
+       XCloseDisplay(root->sys->dpy);
+       while (screens)
+               screens = list_remove(screens, screens, 1);
+       tdestroy(cache, (void(*)(void*))win_free);
+}