/* * mcwm, a small window manager for the X Window System using the X * protocol C Binding libraries. * * For 'user' configurable stuff, see config.h. * * MC, mc at the domain hack.org * http://hack.org/mc/ * * Copyright (c) 2010 Michael Cardell Widerkrantz, mc at the domain hack.org. * * Permission to use, copy, modify, and 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 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifdef DEBUG #include "events.h" #endif #include "list.h" /* Check here for user configurable parts: */ #include "config.h" #ifdef DMALLOC #include "dmalloc.h" #endif #ifdef DEBUG #define PDEBUG(Args...) \ do { fprintf(stderr, "mcwm: "); fprintf(stderr, ##Args); } while(0) #define D(x) x #else #define PDEBUG(Args...) #define D(x) #endif /* Internal Constants. */ /* We're currently moving a window with the mouse. */ #define MCWM_MOVE 2 /* We're currently resizing a window with the mouse. */ #define MCWM_RESIZE 3 /* Our highest workspace. */ #define WORKSPACE_MAX 9 /* Value in WM hint which means this window is fixed on all workspaces. */ #define NET_WM_FIXED 0xffffffff /* This means we didn't get any window hint at all. */ #define MCWM_NOWS 0xfffffffe /* Types. */ typedef enum { KEY_F, KEY_H, KEY_J, KEY_K, KEY_L, KEY_M, KEY_R, KEY_RET, KEY_X, KEY_TAB, KEY_1, KEY_2, KEY_3, KEY_4, KEY_5, KEY_6, KEY_7, KEY_8, KEY_9, KEY_0, KEY_Y, KEY_U, KEY_B, KEY_N, KEY_MAX } key_enum_t; struct client { xcb_drawable_t id; uint32_t x; uint32_t y; uint16_t width; uint16_t height; uint16_t min_width, min_height; uint16_t max_width, max_height; int32_t width_inc, height_inc; int32_t base_width, base_height; bool vertmaxed; /* Vertically maximized? */ bool maxed; /* Totally maximized? */ bool fixed; /* Visible on all workspaces? */ struct item *winitem; /* Pointer to our place in list of all windows. */ }; /* Globals */ int sigcode; xcb_connection_t *conn; /* Connection to X server. */ xcb_screen_t *screen; /* Our current screen. */ uint32_t curws = 0; /* Current workspace. */ struct client *focuswin; /* Current focus window. */ struct item *winlist = NULL; struct item *wslist[10] = { NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL }; struct keys { xcb_keysym_t keysym; xcb_keycode_t keycode; } keys[KEY_MAX] = { { USERKEY_FIX, 0 }, { USERKEY_MOVE_LEFT, 0 }, { USERKEY_MOVE_DOWN, 0 }, { USERKEY_MOVE_UP, 0 }, { USERKEY_MOVE_RIGHT, 0 }, { USERKEY_MAXVERT, 0 }, { USERKEY_RAISE, 0 }, { USERKEY_TERMINAL, 0 }, { USERKEY_MAX, 0 }, { USERKEY_CHANGE, 0, }, { USERKEY_WS1, 0 }, { USERKEY_WS2, 0 }, { USERKEY_WS3, 0 }, { USERKEY_WS4, 0 }, { USERKEY_WS5, 0 }, { USERKEY_WS6, 0 }, { USERKEY_WS7, 0 }, { USERKEY_WS8, 0 }, { USERKEY_WS9, 0 }, { USERKEY_WS10, 0 }, { USERKEY_TOPLEFT, 0 }, { USERKEY_TOPRIGHT, 0 }, { USERKEY_BOTLEFT, 0 }, { USERKEY_BOTRIGHT, 0 } }; struct conf { bool borders; char *terminal; /* Path to terminal to start. */ uint32_t focuscol; uint32_t unfocuscol; uint32_t fixedcol; } conf; xcb_atom_t atom_desktop; /* Functions declerations. */ void cleanup(int code); void arrangewindows(uint16_t rootwidth, uint16_t rootheight); void setwmdesktop(xcb_drawable_t win, uint32_t ws); int32_t getwmdesktop(xcb_drawable_t win); void addtoworkspace(struct client *client, uint32_t ws); void delfromworkspace(struct client *client, uint32_t ws); void changeworkspace(uint32_t ws); void fixwindow(struct client *client, bool setcolour); uint32_t getcolor(const char *colstr); void forgetclient(struct client *client); void forgetwin(xcb_window_t win); void newwin(xcb_window_t win); struct client *setupwin(xcb_window_t win); xcb_keycode_t keysymtokeycode(xcb_keysym_t keysym, xcb_key_symbols_t *keysyms); int setupkeys(void); int setupscreen(void); void raisewindow(xcb_drawable_t win); void raiseorlower(struct client *client); void movewindow(xcb_drawable_t win, uint16_t x, uint16_t y); struct client *findclient(xcb_drawable_t win); void focusnext(void); void setunfocus(xcb_drawable_t win); void setfocus(struct client *client); int start_terminal(void); void resize(xcb_drawable_t win, uint16_t width, uint16_t height); void resizestep(struct client *client, char direction); void mousemove(xcb_drawable_t win, int rel_x, int rel_y); void mouseresize(struct client *client, int rel_x, int rel_y); void movestep(struct client *client, char direction); void unmax(struct client *client); void maximize(struct client *client); void maxvert(struct client *client); bool getpointer(xcb_drawable_t win, int16_t *x, int16_t *y); bool getgeom(xcb_drawable_t win, int16_t *x, int16_t *y, uint16_t *width, uint16_t *height); void topleft(void); void topright(void); void botleft(void); void botright(void); void handle_keypress(xcb_key_press_event_t *ev); void printhelp(void); void sigcatch(int sig); /* Function bodies. */ /* * Map all windows we know about. Set keyboard focus to be wherever * the mouse pointer is. Then exit. */ void cleanup(int code) { struct item *item; struct client *client; xcb_set_input_focus(conn, XCB_NONE, XCB_INPUT_FOCUS_POINTER_ROOT, XCB_CURRENT_TIME); for (item = winlist; item != NULL; item = item->next) { client = item->data; xcb_map_window(conn, client->id); } xcb_flush(conn); if (SIGSEGV == code) { abort(); } xcb_disconnect(conn); exit(code); } /* * * Rearrange windows to fit new screen size rootwidth x rootheight. */ void arrangewindows(uint16_t rootwidth, uint16_t rootheight) { xcb_query_tree_reply_t *reply; int i; int len; xcb_window_t *children; xcb_get_window_attributes_reply_t *attr; uint32_t mask = 0; uint32_t values[4]; bool changed; int16_t x; int16_t y; uint16_t width; uint16_t height; PDEBUG("Rearranging all windows to fit new screen size %d x %d.\n", rootwidth, rootheight); /* Get all children of the root window */ reply = xcb_query_tree_reply(conn, xcb_query_tree(conn, screen->root), 0); if (NULL == reply) { return; } len = xcb_query_tree_children_length(reply); children = xcb_query_tree_children(reply); /* * Go through all children and look at their coordinates and * geometry. If they don't fit on the new screen, move them around * and resize them as necessary. */ for (i = 0; i < len; i ++) { changed = false; attr = xcb_get_window_attributes_reply( conn, xcb_get_window_attributes(conn, children[i]), NULL); if (!attr) { fprintf(stderr, "Couldn't get attributes for window %d.", children[i]); continue; } /* * Don't bother with windows in override redirect mode. */ if (!attr->override_redirect) { if (!getgeom(children[i], &x, &y, &width, &height)) { free(attr); goto out; } PDEBUG("Win %d at %d,%d %d x %d\n", children[i], x, y, width, height); if (width > rootwidth) { width = rootwidth - BORDERWIDTH * 2; changed = true; } if (height > rootheight) { height = rootheight - BORDERWIDTH * 2; changed = true; } /* If x or y + geometry is outside of screen, move window. */ if (x + width > rootwidth) { x = rootwidth - (width + BORDERWIDTH * 2); changed = true; } if (y + height > rootheight) { y = rootheight - (height + BORDERWIDTH * 2);; changed = true; } if (changed) { PDEBUG("--- Win %d going to %d,%d %d x %d\n", children[i], x, y, width, height); mask = XCB_CONFIG_WINDOW_X | XCB_CONFIG_WINDOW_Y | XCB_CONFIG_WINDOW_WIDTH | XCB_CONFIG_WINDOW_HEIGHT; values[0] = x; values[1] = y; values[2] = width; values[3] = height; xcb_configure_window(conn, children[i], mask, values); xcb_flush(conn); } } /* if not override_direct */ free(attr); } /* for */ out: free(reply); } void setwmdesktop(xcb_drawable_t win, uint32_t ws) { PDEBUG("Changing _NET_WM_DESKTOP on window %d to %d\n", win, ws); xcb_change_property(conn, XCB_PROP_MODE_REPLACE, win, atom_desktop, CARDINAL, 32, 1, &ws); } int32_t getwmdesktop(xcb_drawable_t win) { xcb_get_property_reply_t *reply; xcb_get_property_cookie_t cookie; uint32_t *wsp; uint32_t ws; cookie = xcb_get_any_property(conn, false, win, atom_desktop, sizeof (int32_t)); reply = xcb_get_property_reply(conn, cookie, NULL); if (NULL == reply) { fprintf(stderr, "mcwm: Couldn't get properties for win %d\n", win); return MCWM_NOWS; } /* Length is 0 if we didn't find it. */ if (0 == xcb_get_property_value_length(reply)) { PDEBUG("_NET_WM_DESKTOP reply was 0 length.\n"); goto bad; } wsp = xcb_get_property_value(reply); ws = *wsp; PDEBUG("got _NET_WM_DESKTOP: %d stored at %p.\n", ws, (void *)wsp); free(reply); return ws; bad: free(reply); return MCWM_NOWS; } void addtoworkspace(struct client *client, uint32_t ws) { struct item *item; item = additem(&wslist[ws]); if (NULL == item) { PDEBUG("addtoworkspace: Out of memory.\n"); return; } item->data = client; /* * Set window hint property so we can survive a crash. * * Fixed windows have their own special WM hint. We don't want to * mess with that. */ if (!client->fixed) { setwmdesktop(client->id, ws); } } void delfromworkspace(struct client *client, uint32_t ws) { struct item *item; /* Find client in list. */ for (item = wslist[ws]; item != NULL; item = item->next) { if (client == item->data) { delitem(&wslist[ws], item); return; } } } void changeworkspace(uint32_t ws) { struct item *item; struct item *tmpitem; struct client *client; if (ws == curws) { PDEBUG("Changing to same workspace!\n"); return; } PDEBUG("Changing from workspace #%d to #%d\n", curws, ws); /* * We lose our focus temporarily if the window we focus isn't * fixed. An EnterNotify event will get our focus back later. */ if (NULL != focuswin && !focuswin->fixed) { setunfocus(focuswin->id); focuswin = NULL; } /* Go through list of current ws. Unmap everything that isn't fixed. */ for (item = wslist[curws]; item != NULL; ) { client = item->data; PDEBUG("changeworkspace. unmap phase. ws #%d, client-fixed: %d\n", curws, client->fixed); if (client->fixed) { /* We move all fixed windows to every new workspace we go to. */ addtoworkspace(client, ws); /* * NB! Before deleting this item, we need to save the * address to next item so we can continue through the * list. */ tmpitem = item; item = item->next; delitem(&wslist[curws], tmpitem); } else { /* * This is an ordinary window. Just unmap it. Note that * this will generate an unnecessary UnmapNotify event * which we will try to handle later. */ xcb_unmap_window(conn, client->id); item = item->next; } } /* for */ /* Go through list of new ws. Map everything that isn't fixed. */ for (item = wslist[ws]; item != NULL; item = item->next) { client = item->data; PDEBUG("changeworkspace. map phase. ws #%d, client-fixed: %d\n", ws, client->fixed); /* Fixed windows are already mapped. Map everything else. */ if (!client->fixed) { xcb_map_window(conn, client->id); } } xcb_flush(conn); curws = ws; } void fixwindow(struct client *client, bool setcolour) { uint32_t values[1]; if (NULL == client) { return; } if (client->fixed) { client->fixed = false; setwmdesktop(client->id, curws); if (setcolour) { /* Set border color to ordinary focus colour. */ values[0] = conf.focuscol; xcb_change_window_attributes(conn, client->id, XCB_CW_BORDER_PIXEL, values); } } else { client->fixed = true; setwmdesktop(client->id, NET_WM_FIXED); if (setcolour) { /* Set border color to fixed colour. */ values[0] = conf.fixedcol; xcb_change_window_attributes(conn, client->id, XCB_CW_BORDER_PIXEL, values); } } xcb_flush(conn); } uint32_t getcolor(const char *colstr) { xcb_alloc_named_color_reply_t *col_reply; xcb_colormap_t colormap; xcb_generic_error_t *error; xcb_alloc_named_color_cookie_t colcookie; colormap = screen->default_colormap; colcookie = xcb_alloc_named_color(conn, colormap, strlen(colstr), colstr); col_reply = xcb_alloc_named_color_reply(conn, colcookie, &error); if (NULL != error) { fprintf(stderr, "mcwm: Couldn't get pixel value for colour %s. " "Exiting.\n", colstr); xcb_disconnect(conn); exit(1); } return col_reply->pixel; } void forgetclient(struct client *client) { if (NULL == client) { PDEBUG("forgetclient: client was NULL\n"); return; } /* Delete window from workspace list. */ delfromworkspace(client, curws); free(client->winitem->data); delitem(&winlist, client->winitem); } void forgetwin(xcb_window_t win) { struct item *item; struct client *client; /* Find window in client list. */ for (item = winlist; item != NULL; item = item->next) { client = item->data; /* * Forget about it completely and free allocated data. * * Note that it might already be freed by handling an * UnmapNotify, so it isn't necessarily an error if we don't * find it. */ PDEBUG("Win %d == client ID %d\n", win, client->id); if (win == client->id) { /* Found it. */ PDEBUG("Found it. Forgetting...\n"); /* Delete window from workspace list. */ delfromworkspace(client, curws); free(item->data); delitem(&winlist, item); return; } } } /* * Set position, geometry and attributes of a new window and show it * on the screen. */ void newwin(xcb_window_t win) { int16_t pointx; int16_t pointy; int16_t x; int16_t y; uint16_t width; uint16_t height; struct client *client; /* Get pointer position so we can move the window to the cursor. */ if (!getpointer(screen->root, &pointx, &pointy)) { pointx = 0; pointy = 0; } /* * Set up stuff, like borders, add the window to the client list, * et cetera. */ client = setupwin(win); if (NULL == client) { fprintf(stderr, "mcwm: Couldn't set up window. Out of memory.\n"); return; } /* Add this window to the current workspace. */ addtoworkspace(client, curws); if (!getgeom(win, &x, &y, &width, &height)) { PDEBUG("Couldn't get geometry\n"); return; } /* * If the window is larger than our screen, just place it in the * corner and resize. */ if (width > screen->width_in_pixels) { pointx = 0; width = screen->width_in_pixels - BORDERWIDTH * 2;; resize(win, width, height); } else if (pointx + width + BORDERWIDTH * 2 > screen->width_in_pixels) { pointx = screen->width_in_pixels - (width + BORDERWIDTH * 2); } if (height > screen->height_in_pixels) { pointy = 0; height = screen->height_in_pixels - BORDERWIDTH * 2; resize(win, width, height); } else if (pointy + height + BORDERWIDTH * 2 > screen->height_in_pixels) { pointy = screen->height_in_pixels - (height + BORDERWIDTH * 2); } /* Move the window to cursor position. */ movewindow(win, pointx, pointy); /* Show window on screen. */ xcb_map_window(conn, win); /* * Move cursor into the middle of the window so we don't lose the * pointer to another window. */ xcb_warp_pointer(conn, XCB_NONE, win, 0, 0, 0, 0, width / 2, height / 2); xcb_flush(conn); } /* set border colour, width and event mask for window. */ struct client *setupwin(xcb_window_t win) { uint32_t mask = 0; uint32_t values[2]; struct item *item; struct client *client; xcb_size_hints_t hints; if (conf.borders) { /* Set border color. */ values[0] = conf.unfocuscol; xcb_change_window_attributes(conn, win, XCB_CW_BORDER_PIXEL, values); /* Set border width. */ values[0] = BORDERWIDTH; mask = XCB_CONFIG_WINDOW_BORDER_WIDTH; xcb_configure_window(conn, win, mask, values); } mask = XCB_CW_EVENT_MASK; values[0] = XCB_EVENT_MASK_ENTER_WINDOW; xcb_change_window_attributes_checked(conn, win, mask, values); xcb_flush(conn); /* Remember window and store a few things about it. */ item = additem(&winlist); if (NULL == item) { PDEBUG("newwin: Out of memory.\n"); return NULL; } client = malloc(sizeof (struct client)); if (NULL == client) { PDEBUG("newwin: Out of memory.\n"); return NULL; } item->data = client; /* Initialize client. */ client->id = win; client->x = 0; client->y = 0; client->width = 0; client->height = 0; client->min_width = 0; client->min_height = 0; client->max_width = screen->width_in_pixels; client->max_height = screen->height_in_pixels; client->base_width = 0; client->base_height = 0; client->width_inc = 1; client->height_inc = 1; client->vertmaxed = false; client->maxed = false; client->fixed = false; client->winitem = item; PDEBUG("Adding window %d\n", client->id); /* * Get the window's incremental size step, if any. */ if (!xcb_get_wm_normal_hints_reply( conn, xcb_get_wm_normal_hints_unchecked( conn, win), &hints, NULL)) { PDEBUG("Couldn't get size hints."); } if (hints.flags & XCB_SIZE_HINT_P_MIN_SIZE) { client->min_width = hints.min_width; client->min_height = hints.min_height; } if (hints.flags & XCB_SIZE_HINT_P_MAX_SIZE) { client->max_width = hints.max_width; client->max_height = hints.max_height; } if (hints.flags & XCB_SIZE_HINT_P_RESIZE_INC) { client->width_inc = hints.width_inc; client->height_inc = hints.height_inc; PDEBUG("widht_inc %d\nheight_inc %d\n", client->width_inc, client->height_inc); } if (hints.flags & XCB_SIZE_HINT_BASE_SIZE) { client->base_width = hints.base_width; client->base_height = hints.base_height; } return client; } xcb_keycode_t keysymtokeycode(xcb_keysym_t keysym, xcb_key_symbols_t *keysyms) { xcb_keycode_t *keyp; xcb_keycode_t key; /* We only use the first keysymbol, even if there are more. */ keyp = xcb_key_symbols_get_keycode(keysyms, keysym); if (NULL == keyp) { fprintf(stderr, "mcwm: Couldn't look up key. Exiting.\n"); exit(1); return 0; } key = *keyp; free(keyp); return key; } int setupkeys(void) { xcb_key_symbols_t *keysyms; int i; /* Get all the keysymbols. */ keysyms = xcb_key_symbols_alloc(conn); for (i = KEY_F; i < KEY_MAX; i ++) { keys[i].keycode = keysymtokeycode(keys[i].keysym, keysyms); if (0 == keys[i].keycode) { /* Couldn't set up keys! */ /* Get rid of key symbols. */ free(keysyms); return -1; } } /* Get rid of the key symbols table. */ free(keysyms); return 0; } /* Walk through all existing windows and set them up. */ int setupscreen(void) { xcb_query_tree_reply_t *reply; xcb_query_pointer_reply_t *pointer; int i; int len; xcb_window_t *children; xcb_get_window_attributes_reply_t *attr; struct client *client; uint32_t ws; /* Get all children. */ reply = xcb_query_tree_reply(conn, xcb_query_tree(conn, screen->root), 0); if (NULL == reply) { return -1; } len = xcb_query_tree_children_length(reply); children = xcb_query_tree_children(reply); /* Set up all windows on this root. */ for (i = 0; i < len; i ++) { attr = xcb_get_window_attributes_reply( conn, xcb_get_window_attributes(conn, children[i]), NULL); if (!attr) { fprintf(stderr, "Couldn't get attributes for window %d.", children[i]); continue; } /* * Don't set up or even bother windows in override redirect * mode. * * This mode means they wouldn't have been reported to us * with a MapRequest if we had been running, so in the * normal case we wouldn't have seen them. * * Only handle visible windows. */ if (!attr->override_redirect && attr->map_state == XCB_MAP_STATE_VIEWABLE) { client = setupwin(children[i]); if (NULL != client) { /* * Check if this window has a workspace set already as * a WM hint. * */ ws = getwmdesktop(children[i]); if (ws == NET_WM_FIXED) { fixwindow(client, false); addtoworkspace(client, curws); } else if (MCWM_NOWS != ws && ws < WORKSPACE_MAX) { addtoworkspace(client, ws); /* If it's not our current workspace, hide it. */ if (ws != curws) { xcb_unmap_window(conn, client->id); } } else { /* * No workspace hint at all. Just add it to our * current workspace. */ addtoworkspace(client, curws); } } } free(attr); } /* for */ changeworkspace(0); /* * Get pointer position so we can set focus on any window which * might be under it. */ pointer = xcb_query_pointer_reply( conn, xcb_query_pointer(conn, screen->root), 0); if (NULL == pointer) { focuswin = NULL; } else { setfocus(findclient(pointer->child)); free(pointer); } xcb_flush(conn); free(reply); return 0; } void raisewindow(xcb_drawable_t win) { uint32_t values[] = { XCB_STACK_MODE_ABOVE }; if (screen->root == win || 0 == win) { return; } xcb_configure_window(conn, win, XCB_CONFIG_WINDOW_STACK_MODE, values); xcb_flush(conn); } void raiseorlower(struct client *client) { uint32_t values[] = { XCB_STACK_MODE_OPPOSITE }; xcb_drawable_t win; if (NULL == client) { return; } win = client->id; xcb_configure_window(conn, win, XCB_CONFIG_WINDOW_STACK_MODE, values); xcb_flush(conn); } void movewindow(xcb_drawable_t win, uint16_t x, uint16_t y) { uint32_t values[2]; if (screen->root == win || 0 == win) { /* Can't move root. */ return; } values[0] = x; values[1] = y; xcb_configure_window(conn, win, XCB_CONFIG_WINDOW_X | XCB_CONFIG_WINDOW_Y, values); xcb_flush(conn); } void focusnext(void) { struct client *client; bool found = false; struct item *item; #if DEBUG if (NULL != focuswin) { PDEBUG("Focus now in win %d\n", focuswin->id); } #endif /* If we currently focus the root, focus first in list. */ if (NULL == focuswin) { if (NULL == wslist[curws]) { PDEBUG("No windows to focus on.\n"); return; } client = wslist[curws]->data; found = true; } else { /* Find client in list. */ for (item = wslist[curws]; item != NULL; item = item->next) { if (focuswin == item->data) { if (NULL != item->next) { client = item->next->data; found = true; } else { /* * We were at the end of list. Focusing on first window in * list instead. */ client = wslist[curws]->data; found = true; } } } } if (found) { raisewindow(client->id); xcb_warp_pointer(conn, XCB_NONE, client->id, 0, 0, 0, 0, 0, 0); setfocus(client); } else { PDEBUG("Couldn't find any new window to focus on.\n"); } } void setunfocus(xcb_drawable_t win) { uint32_t values[1]; if (NULL == focuswin) { return; } if (focuswin->id == screen->root || !conf.borders) { return; } /* Set new border colour. */ values[0] = conf.unfocuscol; xcb_change_window_attributes(conn, win, XCB_CW_BORDER_PIXEL, values); xcb_flush(conn); } struct client *findclient(xcb_drawable_t win) { struct item *item; struct client *client; for (item = winlist; item != NULL; item = item->next) { client = item->data; if (win == client->id) { PDEBUG("findclient: Found it. Win: %d\n", client->id); return client; } } return NULL; } void setfocus(struct client *client) { uint32_t values[1]; /* * If client is NULL, we focus on whatever the pointer is on. * * This is a pathological case, but it will make the poor user * able to focus on windows anyway, even though this window * manager might be buggy. */ if (NULL == client) { focuswin = NULL; xcb_set_input_focus(conn, XCB_NONE, XCB_INPUT_FOCUS_POINTER_ROOT, XCB_CURRENT_TIME); xcb_flush(conn); return; } /* * Don't bother focusing on the root window or on the same window * that already has focus. */ if (client->id == screen->root || client == focuswin) { return; } if (conf.borders) { /* Set new border colour. */ if (client->fixed) { values[0] = conf.fixedcol; } else { values[0] = conf.focuscol; } xcb_change_window_attributes(conn, client->id, XCB_CW_BORDER_PIXEL, values); /* Unset last focus. */ if (NULL != focuswin) { setunfocus(focuswin->id); } } /* Set new input focus. */ xcb_set_input_focus(conn, XCB_INPUT_FOCUS_POINTER_ROOT, client->id, XCB_CURRENT_TIME); xcb_flush(conn); focuswin = client; } int start_terminal(void) { pid_t pid; pid = fork(); if (-1 == pid) { perror("fork"); return -1; } else if (0 == pid) { pid_t termpid; /* In our first child. */ /* * Make this process a new process leader, otherwise the * terminal will die when the wm dies. Also, this makes any * SIGCHLD go to this process when we fork again. */ if (-1 == setsid()) { perror("setsid"); exit(1); } /* * Fork again for the terminal process. This way, the wm won't * know anything about it. */ termpid = fork(); if (-1 == termpid) { perror("fork"); exit(1); } else if (0 == termpid) { char *argv[2]; /* In the second child, now starting terminal. */ argv[0] = conf.terminal; argv[1] = NULL; if (-1 == execvp(conf.terminal, argv)) { perror("execve"); exit(1); } } /* second child */ /* Exit our first child so the wm can pick up and continue. */ exit(0); } /* first child */ else { /* Wait for the first forked process to exit. */ waitpid(pid, NULL, 0); } return 0; } void resize(xcb_drawable_t win, uint16_t width, uint16_t height) { uint32_t values[2]; if (screen->root == win || 0 == win) { /* Can't resize root. */ return; } values[0] = width; values[1] = height; xcb_configure_window(conn, win, XCB_CONFIG_WINDOW_WIDTH | XCB_CONFIG_WINDOW_HEIGHT, values); xcb_flush(conn); } void resizestep(struct client *client, char direction) { int16_t start_x; int16_t start_y; int16_t x; int16_t y; uint16_t width; uint16_t height; uint16_t origwidth; uint16_t origheight; int step_x = MOVE_STEP; int step_y = MOVE_STEP; xcb_drawable_t win; bool warp = false; if (NULL == client) { return; } if (client->maxed) { /* Can't resize a fully maximized window. */ return; } win = client->id; /* Save pointer position so we can warp back later, if necessary. */ if (!getpointer(win, &start_x, &start_y)) { return; } raisewindow(win); /* Get window geometry. */ if (!getgeom(client->id, &x, &y, &width, &height)) { return; } origwidth = width; origheight = height; if (client->width_inc > 1) { step_x = client->width_inc; } else { step_x = MOVE_STEP; } if (client->height_inc > 1) { step_y = client->height_inc; } else { step_y = MOVE_STEP; } switch (direction) { case 'h': if (step_x >= width) { return; } width = width - step_x; height = height; break; case 'j': width = width; height = height + step_y; if (height + y > screen->height_in_pixels) { return; } break; case 'k': if (step_y >= height) { return; } height = height - step_y; break; case 'l': width = width + step_x; height = height; if (width + x > screen->width_in_pixels) { return; } break; default: PDEBUG("resizestep in unknown direction.\n"); break; } /* switch direction */ /* Is it smaller than it wants to be? */ if (0 != client->min_height && height < client->min_height) { height = client->min_height; } if (0 != client->min_width && width < client->min_width) { width = client->min_width; } PDEBUG("Resizing to %dx%d\n", width, height); resize(win, width, height); /* If this window was vertically maximized, remember that it isn't now. */ if (client->vertmaxed) { client->vertmaxed = false; } /* * We might need to warp the pointer to keep the focus. * * Don't do anything if the pointer was outside the window when we * began resizing. * * If the pointer was inside the window when we began and it still * is, don't do anything. However, if we're about to lose the * pointer, move in. */ if (start_x > 0 - BORDERWIDTH && start_x < origwidth + BORDERWIDTH && start_y > 0 - BORDERWIDTH && start_y < origheight + BORDERWIDTH ) { x = start_x; y = start_y; if (start_x > width - step_x) { x = width / 2; if (0 == x) { x = 1; } warp = true; } if (start_y > height - step_y) { y = height / 2; if (0 == y) { y = 1; } warp = true; } if (warp) { xcb_warp_pointer(conn, XCB_NONE, win, 0, 0, 0, 0, x, y); xcb_flush(conn); } } } void mousemove(xcb_drawable_t win, int rel_x, int rel_y) { xcb_get_geometry_reply_t *geom; int x; int y; /* Get window geometry. */ geom = xcb_get_geometry_reply(conn, xcb_get_geometry(conn, win), NULL); if (NULL == geom) { return; } x = rel_x; y = rel_y; if (x < 0) { x = 0; } if (y < 0) { y = 0; } if (y + geom->height + BORDERWIDTH * 2 > screen->height_in_pixels) { y = screen->height_in_pixels - (geom->height + BORDERWIDTH * 2); } if (x + geom->width + BORDERWIDTH * 2 > screen->width_in_pixels) { x = screen->width_in_pixels - (geom->width + BORDERWIDTH * 2); } movewindow(win, x, y); free(geom); } void mouseresize(struct client *client, int rel_x, int rel_y) { uint16_t width; uint16_t height; int16_t x; int16_t y; /* Get window geometry. We throw away width and height values. */ if (!getgeom(client->id, &x, &y, &width, &height)) { return; } /* * Calculate new width and height. If we have WM hints, we use * them. Otherwise these are set to 1 pixel when initializing * client. * * Note that we need to take the absolute of the difference since * we're dealing with unsigned integers. This has the interesting * side effect that we resize the window even if the mouse pointer * is at the other side of the window. */ width = abs(rel_x - x); height = abs(rel_y - y); width -= (width - client->base_width) % client->width_inc; height -= (height - client->base_height) % client->height_inc; /* Is it smaller than it wants to be? */ if (0 != client->min_height && height < client->min_height) { height = client->min_height; } if (0 != client->min_width && width < client->min_width) { width = client->min_width; } /* Check if the window fits on screen. */ if (x + width > screen->width_in_pixels - BORDERWIDTH * 2) { width = screen->width_in_pixels - (x + BORDERWIDTH * 2); } if (y + height > screen->height_in_pixels - BORDERWIDTH * 2) { height = screen->height_in_pixels - (y + BORDERWIDTH * 2); } PDEBUG("Resizing to %dx%d (%dx%d)\n", width, height, (width - client->base_width) / client->width_inc, (height - client->base_height) / client->height_inc); resize(client->id, width, height); /* If this window was vertically maximized, remember that it isn't now. */ if (client->vertmaxed) { client->vertmaxed = false; } } void movestep(struct client *client, char direction) { int16_t start_x; int16_t start_y; int16_t x; int16_t y; uint16_t width; uint16_t height; xcb_drawable_t win; if (NULL == client) { return; } if (client->maxed) { /* We can't move a fully maximized window. */ return; } win = client->id; /* Save pointer position so we can warp pointer here later. */ if (!getpointer(win, &start_x, &start_y)) { return; } if (!getgeom(win, &x, &y, &width, &height)) { return; } width = width + BORDERWIDTH * 2; height = height + BORDERWIDTH * 2; raisewindow(win); switch (direction) { case 'h': x = x - MOVE_STEP; if (x < 0) { x = 0; } movewindow(win, x, y); break; case 'j': y = y + MOVE_STEP; if (y + height > screen->height_in_pixels) { y = screen->height_in_pixels - height; } movewindow(win, x, y); break; case 'k': y = y - MOVE_STEP; if (y < 0) { y = 0; } movewindow(win, x, y); break; case 'l': x = x + MOVE_STEP; if (x + width > screen->width_in_pixels) { x = screen->width_in_pixels - width; } movewindow(win, x, y); break; default: PDEBUG("movestep: Moving in unknown direction.\n"); break; } /* switch direction */ /* * If the pointer was inside the window to begin with, move * pointer back to where it was, relative to the window. */ if (start_x > 0 - BORDERWIDTH && start_x < width + BORDERWIDTH && start_y > 0 - BORDERWIDTH && start_y < height + BORDERWIDTH ) { xcb_warp_pointer(conn, XCB_NONE, win, 0, 0, 0, 0, start_x, start_y); xcb_flush(conn); } } void unmax(struct client *client) { uint32_t values[5]; uint32_t mask = 0; if (NULL == client) { PDEBUG("unmax: client was NULL!\n"); return; } /* Restore geometry. */ values[0] = client->x; values[1] = client->y; values[2] = client->width; values[3] = client->height; /* Set borders again. */ values[4] = BORDERWIDTH; mask = XCB_CONFIG_WINDOW_X | XCB_CONFIG_WINDOW_Y | XCB_CONFIG_WINDOW_WIDTH | XCB_CONFIG_WINDOW_HEIGHT | XCB_CONFIG_WINDOW_BORDER_WIDTH; xcb_configure_window(conn, client->id, mask, values); /* Warp pointer to window or we might lose it. */ xcb_warp_pointer(conn, XCB_NONE, client->id, 0, 0, 0, 0, 1, 1); xcb_flush(conn); } void maximize(struct client *client) { xcb_get_geometry_reply_t *geom; uint32_t values[4]; uint32_t mask = 0; if (NULL == client) { PDEBUG("maximize: client was NULL!\n"); return; } /* * Check if maximized already. If so, revert to stored * geometry. */ if (client->maxed) { unmax(client); client->maxed = false; return; } /* Get window geometry. */ geom = xcb_get_geometry_reply(conn, xcb_get_geometry(conn, client->id), NULL); if (NULL == geom) { return; } /* Raise first. Pretty silly to maximize below something else. */ raisewindow(client->id); /* FIXME: Store original geom in property as well? */ client->x = geom->x; client->y = geom->y; client->width = geom->width; client->height = geom->height; /* Remove borders. */ values[0] = 0; mask = XCB_CONFIG_WINDOW_BORDER_WIDTH; xcb_configure_window(conn, client->id, mask, values); /* Move to top left and resize. */ values[0] = 0; values[1] = 0; values[2] = screen->width_in_pixels; values[3] = screen->height_in_pixels; xcb_configure_window(conn, client->id, XCB_CONFIG_WINDOW_X | XCB_CONFIG_WINDOW_Y | XCB_CONFIG_WINDOW_WIDTH | XCB_CONFIG_WINDOW_HEIGHT, values); xcb_flush(conn); client->maxed = true; free(geom); } void maxvert(struct client *client) { uint32_t values[2]; uint16_t width; uint16_t height; int16_t x; int16_t y; if (NULL == client) { PDEBUG("maxvert: client was NULL\n"); return; } /* * Check if maximized already. If so, revert to stored geometry. */ if (client->vertmaxed) { unmax(client); client->vertmaxed = false; return; } /* Raise first. Pretty silly to maximize below something else. */ raisewindow(client->id); /* Get window geometry. */ if (!getgeom(client->id, &x, &y, &width, &height)) { return; } /* * Store original coordinates and geometry. * FIXME: Store in property as well? */ client->x = x; client->y = y; client->width = width; client->height = height; /* Compute new height considering height increments and screen height. */ height = screen->height_in_pixels - BORDERWIDTH * 2; height -= (height - client->base_height) % client->height_inc; /* Move to top of screen and resize. */ values[0] = 0; values[1] = height; xcb_configure_window(conn, client->id, XCB_CONFIG_WINDOW_Y | XCB_CONFIG_WINDOW_HEIGHT, values); xcb_flush(conn); /* Remember that this client is vertically maximized. */ client->vertmaxed = true; } bool getpointer(xcb_drawable_t win, int16_t *x, int16_t *y) { xcb_query_pointer_reply_t *pointer; pointer = xcb_query_pointer_reply( conn, xcb_query_pointer(conn, win), 0); if (NULL == pointer) { return false; } *x = pointer->win_x; *y = pointer->win_y; free(pointer); return true; } bool getgeom(xcb_drawable_t win, int16_t *x, int16_t *y, uint16_t *width, uint16_t *height) { xcb_get_geometry_reply_t *geom; geom = xcb_get_geometry_reply(conn, xcb_get_geometry(conn, win), NULL); if (NULL == geom) { return false; } *x = geom->x; *y = geom->y; *width = geom->width; *height = geom->height; free(geom); return true; } void topleft(void) { int16_t pointx; int16_t pointy; if (NULL == focuswin) { return; } raisewindow(focuswin->id); if (!getpointer(focuswin->id, &pointx, &pointy)) { return; } movewindow(focuswin->id, 0, 0); xcb_warp_pointer(conn, XCB_NONE, focuswin->id, 0, 0, 0, 0, pointx, pointy); xcb_flush(conn); } void topright(void) { int16_t x; int16_t y; uint16_t width; uint16_t height; int16_t pointx; int16_t pointy; if (NULL == focuswin) { return; } raisewindow(focuswin->id); if (!getpointer(focuswin->id, &pointx, &pointy)) { return; } if (!getgeom(focuswin->id, &x, &y, &width, &height)) { return; } movewindow(focuswin->id, screen->width_in_pixels - (width + BORDERWIDTH * 2), 0); xcb_warp_pointer(conn, XCB_NONE, focuswin->id, 0, 0, 0, 0, pointx, pointy); xcb_flush(conn); } void botleft(void) { int16_t x; int16_t y; uint16_t width; uint16_t height; int16_t pointx; int16_t pointy; if (NULL == focuswin) { return; } raisewindow(focuswin->id); if (!getpointer(focuswin->id, &pointx, &pointy)) { return; } if (!getgeom(focuswin->id, &x, &y, &width, &height)) { return; } movewindow(focuswin->id, 0, screen->height_in_pixels - (height + BORDERWIDTH * 2)); xcb_warp_pointer(conn, XCB_NONE, focuswin->id, 0, 0, 0, 0, pointx, pointy); xcb_flush(conn); } void botright(void) { int16_t x; int16_t y; uint16_t width; uint16_t height; int16_t pointx; int16_t pointy; if (NULL == focuswin) { return; } raisewindow(focuswin->id); if (!getpointer(focuswin->id, &pointx, &pointy)) { return; } if (!getgeom(focuswin->id, &x, &y, &width, &height)) { return; } movewindow(focuswin->id, screen->width_in_pixels - (width + BORDERWIDTH * 2), screen->height_in_pixels - (height + BORDERWIDTH * 2)); xcb_warp_pointer(conn, XCB_NONE, focuswin->id, 0, 0, 0, 0, pointx, pointy); xcb_flush(conn); } void handle_keypress(xcb_key_press_event_t *ev) { int i; key_enum_t key; for (key = KEY_MAX, i = KEY_F; i < KEY_MAX; i ++) { if (ev->detail == keys[i].keycode) { key = i; } } if (key == KEY_MAX) { PDEBUG("Unknown key pressed.\n"); /* * We don't know what to do with this key. Send this key press * event to the focused window. */ xcb_send_event(conn, false, XCB_SEND_EVENT_DEST_ITEM_FOCUS, XCB_EVENT_MASK_NO_EVENT, (char *) ev); xcb_flush(conn); return; } /* Is it shifted? */ if (ev->state & SHIFTMOD) { switch (key) { case KEY_H: /* h */ resizestep(focuswin, 'h'); break; case KEY_J: /* j */ resizestep(focuswin, 'j'); break; case KEY_K: /* k */ resizestep(focuswin, 'k'); break; case KEY_L: /* l */ resizestep(focuswin, 'l'); break; default: /* Ignore other shifted keys. */ break; } } else { switch (key) { case KEY_RET: /* return */ start_terminal(); break; case KEY_F: /* f */ fixwindow(focuswin, true); break; case KEY_H: /* h */ movestep(focuswin, 'h'); break; case KEY_J: /* j */ movestep(focuswin, 'j'); break; case KEY_K: /* k */ movestep(focuswin, 'k'); break; case KEY_L: /* l */ movestep(focuswin, 'l'); break; case KEY_TAB: /* tab */ focusnext(); break; case KEY_M: /* m */ maxvert(focuswin); break; case KEY_R: /* r*/ raiseorlower(focuswin); break; case KEY_X: /* x */ maximize(focuswin); break; case KEY_1: changeworkspace(0); break; case KEY_2: changeworkspace(1); break; case KEY_3: changeworkspace(2); break; case KEY_4: changeworkspace(3); break; case KEY_5: changeworkspace(4); break; case KEY_6: changeworkspace(5); break; case KEY_7: changeworkspace(6); break; case KEY_8: changeworkspace(7); break; case KEY_9: changeworkspace(8); break; case KEY_0: changeworkspace(9); break; case KEY_Y: topleft(); break; case KEY_U: topright(); break; case KEY_B: botleft(); break; case KEY_N: botright(); break; default: /* Ignore other keys. */ break; } /* switch unshifted */ } } /* handle_keypress() */ void events(void) { xcb_generic_event_t *ev; int mode = 0; /* Internal mode. */ int16_t mode_x; int16_t mode_y; int fd; fd_set in; int found; fd = xcb_get_file_descriptor(conn); for (sigcode = 0; 0 == sigcode;) { FD_ZERO(&in); FD_SET(fd, &in); /* * Check for events, again and again. When poll returns NULL, * we block on select() until the event file descriptor gets * readable again. * * We do it this way instead of xcb_wait_for_event() since * select() will return if we we're interrupted by a signal. * We like that. */ ev = xcb_poll_for_event(conn); if (NULL == ev) { found = select(fd + 1, &in, NULL, NULL, NULL); if (-1 == found) { if (EINTR == errno) { /* We received a signal. Break out of loop. */ break; } else { /* Something was seriously wrong with select(). */ fprintf(stderr, "mcwm: select failed."); cleanup(0); exit(1); } } else { /* We found more events. Goto start of loop. */ continue; } } #ifdef DEBUG if (ev->response_type <= MAXEVENTS) { PDEBUG("Event: %s\n", evnames[ev->response_type]); } else { PDEBUG("Event: #%d. Not known.\n", ev->response_type); } #endif switch (ev->response_type & ~0x80) { case XCB_MAP_REQUEST: { xcb_map_request_event_t *e; PDEBUG("event: Map request.\n"); e = (xcb_map_request_event_t *) ev; newwin(e->window); } break; case XCB_DESTROY_NOTIFY: { xcb_destroy_notify_event_t *e; e = (xcb_destroy_notify_event_t *) ev; /* * If we had focus in this window, forget about the focus. * We will get an EnterNotify if there's another window * under the pointer so we can set the focus proper later. */ if (NULL != focuswin) { if (focuswin->id == e->window) { focuswin = NULL; } } /* * Find this window in list of clients and forget about * it. */ forgetwin(e->window); } break; case XCB_BUTTON_PRESS: { xcb_button_press_event_t *e; int16_t x; int16_t y; uint16_t width; uint16_t height; e = (xcb_button_press_event_t *) ev; PDEBUG("Button %d pressed in window %ld, subwindow %d " "coordinates (%d,%d)\n", e->detail, (long)e->event, e->child, e->event_x, e->event_y); if (e->child != 0) { /* * If middle button was pressed, raise window or lower * it if it was already on top. */ if (2 == e->detail) { raiseorlower(focuswin); } else { int16_t pointx; int16_t pointy; /* We're moving or resizing. */ /* * Get and save pointer position inside the window * so we can go back to it when we're done moving * or resizing. */ if (!getpointer(e->child, &pointx, &pointy)) { break; } mode_x = pointx; mode_y = pointy; /* Raise window. */ raisewindow(e->child); /* Get window geometry. */ if (!getgeom(e->child, &x, &y, &width, &height)) { break; } /* Mouse button 1 was pressed. */ if (1 == e->detail) { mode = MCWM_MOVE; /* * Warp pointer to upper left of window before * starting move. */ xcb_warp_pointer(conn, XCB_NONE, e->child, 0, 0, 0, 0, 1, 1); } else { /* Mouse button 3 was pressed. */ mode = MCWM_RESIZE; /* Warp pointer to lower right. */ xcb_warp_pointer(conn, XCB_NONE, e->child, 0, 0, 0, 0, width, height); } /* * Take control of the pointer in the root window * and confine it to root. * * Give us events when the key is released or if * any motion occurs with the key held down, but * give us only hints about movement. We ask for * the position ourselves later. * * Keep updating everything else. * * Don't use any new cursor. */ xcb_grab_pointer(conn, 0, screen->root, XCB_EVENT_MASK_BUTTON_RELEASE | XCB_EVENT_MASK_BUTTON_MOTION, XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_ASYNC, screen->root, XCB_NONE, XCB_CURRENT_TIME); xcb_flush(conn); PDEBUG("mode now : %d\n", mode); } } /* subwindow */ else { /* * Do something on the root when mouse buttons are * pressed? */ } } break; case XCB_MOTION_NOTIFY: { xcb_motion_notify_event_t *e; e = (xcb_motion_notify_event_t *) ev; /* * Our pointer is moving and since we even get this event * we're either resizing or moving a window. * * We don't bother actually doing anything if we don't * have a focused window or if the focused window is * totally maximized. */ if (mode == MCWM_MOVE) { if (NULL != focuswin && !focuswin->maxed) { mousemove(focuswin->id, e->root_x, e->root_y); } } else if (mode == MCWM_RESIZE) { /* Resize. */ if (NULL != focuswin && !focuswin->maxed) { mouseresize(focuswin, e->root_x, e->root_y); } } else { PDEBUG("Motion event when we're not moving our resizing!\n"); } } break; case XCB_BUTTON_RELEASE: PDEBUG("Mouse button released! mode = %d\n", mode); if (0 != mode) { int16_t x; int16_t y; uint16_t width; uint16_t height; /* We're finished moving or resizing. */ if (NULL == focuswin) { /* * Something's seriously wrong. We don't seem to * have a focused window! */ PDEBUG("No focused window when finished moving or " "resizing!"); break; } /* * We will get an EnterNotify and focus another window * if the pointer just happens to be on top of another * window when we ungrab the pointer, so we have to * warp the pointer before to prevent this. */ if (!getgeom(focuswin->id, &x, &y, &width, &height)) { break; } /* * Move to saved position within window or if that * position is now outside current window, move inside * window. */ if (mode_x > width) { x = width / 2; if (0 == x) { x = 1; } } else { x = mode_x; } if (mode_y > height) { y = height / 2; if (0 == y) { y = 1; } } else { y = mode_y; } xcb_warp_pointer(conn, XCB_NONE, focuswin->id, 0, 0, 0, 0, x, y); xcb_ungrab_pointer(conn, XCB_CURRENT_TIME); xcb_flush(conn); /* Important! */ mode = 0; PDEBUG("mode now = %d\n", mode); } break; case XCB_KEY_PRESS: { xcb_key_press_event_t *e = (xcb_key_press_event_t *)ev; PDEBUG("Key %d pressed\n", e->detail); handle_keypress(e); } break; case XCB_ENTER_NOTIFY: { xcb_enter_notify_event_t *e = (xcb_enter_notify_event_t *)ev; struct client *client; PDEBUG("event: Enter notify eventwin %d, child %d, detail %d.\n", e->event, e->child, e->detail); /* * If this isn't a normal enter notify, don't bother. * * The other cases means the pointer is grabbed and that * either means someone is using it for menu selections or * that we're moving or resizing. We don't want to change * focus in these cases. * */ if (e->mode == XCB_NOTIFY_MODE_NORMAL) { /* * If we're entering the same window we focus now, * then don't bother focusing. */ if (NULL == focuswin || e->event != focuswin->id) { /* * Otherwise, set focus to the window we just * entered if we can find it among the windows we * know about. If not, just keep focus in the old * window. */ client = findclient(e->event); if (NULL != client) { setfocus(client); } } } } break; case XCB_CONFIGURE_NOTIFY: { xcb_configure_notify_event_t *e = (xcb_configure_notify_event_t *)ev; if (e->window == screen->root) { /* * When using RANDR, the root can change geometry when * the user adds a new screen, tilts their screen 90 * degrees or whatnot. We might need to rearrange * windows to be visible. */ PDEBUG("Notify event for root!\n"); if (e->width < screen->width_in_pixels || e->height < screen->height_in_pixels) { arrangewindows(e->width, e->height); } screen->width_in_pixels = e->width; screen->height_in_pixels = e->height; PDEBUG("New root geometry: %dx%d\n", e->width, e->height); } } break; case XCB_CONFIGURE_REQUEST: { xcb_configure_request_event_t *e = (xcb_configure_request_event_t *)ev; uint32_t mask = 0; uint32_t values[7]; int i = -1; PDEBUG("event: Configure request. mask = %d\n", e->value_mask); /* * We ignore border width configurations, but handle all * others. */ if (e->value_mask & XCB_CONFIG_WINDOW_X) { PDEBUG("Changing X coordinate to %d\n", e->x); mask |= XCB_CONFIG_WINDOW_X; i ++; values[i] = e->x; } if (e->value_mask & XCB_CONFIG_WINDOW_Y) { PDEBUG("Changing Y coordinate to %d.\n", e->y); mask |= XCB_CONFIG_WINDOW_Y; i ++; values[i] = e->y; } if (e->value_mask & XCB_CONFIG_WINDOW_WIDTH) { PDEBUG("Changing width to %d.\n", e->width); mask |= XCB_CONFIG_WINDOW_WIDTH; i ++; values[i] = e->width; } if (e->value_mask & XCB_CONFIG_WINDOW_HEIGHT) { PDEBUG("Changing height to %d.\n", e->height); mask |= XCB_CONFIG_WINDOW_HEIGHT; i ++; values[i] = e->height; } if (e->value_mask & XCB_CONFIG_WINDOW_SIBLING) { mask |= XCB_CONFIG_WINDOW_SIBLING; i ++; values[i] = e->sibling; } if (e->value_mask & XCB_CONFIG_WINDOW_STACK_MODE) { PDEBUG("Changing stack order.\n"); mask |= XCB_CONFIG_WINDOW_STACK_MODE; i ++; values[i] = e->stack_mode; } if (-1 != i) { xcb_configure_window(conn, e->window, mask, values); xcb_flush(conn); } } break; case XCB_CIRCULATE_REQUEST: { xcb_circulate_request_event_t *e = (xcb_circulate_request_event_t *)ev; /* * Subwindow e->window to parent e->event is about to be * restacked. * * Just do what was requested, e->place is either * XCB_PLACE_ON_TOP or _ON_BOTTOM. We don't care. */ xcb_circulate_window(conn, e->window, e->place); } break; case XCB_UNMAP_NOTIFY: { xcb_unmap_notify_event_t *e = (xcb_unmap_notify_event_t *)ev; struct item *item; struct client *client; /* * Find the window in our *current* workspace list, then * forget about it. If it gets mapped, we add it to our * lists again then. * * Note that we might not know about the window we got the * UnmapNotify event for. It might be a window we just * unmapped on *another* workspace when changing * workspaces, for instance, or it might be a window with * override redirect set. This is not an error. * * XXX We might need to look in the global window list, * after all. Consider if a window is unmapped on our last * workspace while changing workspaces... If we do this, * we need to keep track of our own windows and ignore * UnmapNotify on them. */ for (item = wslist[curws]; item != NULL; item = item->next) { client = item->data; if (client->id == e->window) { PDEBUG("Forgetting about %d\n", e->window); forgetclient(client); break; } } /* for */ } break; } /* switch */ /* Forget about this event. */ free(ev); } } void printhelp(void) { printf("mcwm: Usage: mcwm [-b] [-t terminal-program] [-f colour] " "[-u colour] [-x colour] \n"); printf(" -b means draw no borders\n"); printf(" -t urxvt will start urxvt when MODKEY + Return is pressed\n"); printf(" -f colour sets colour for focused window borders of focused " "to a named color.\n"); printf(" -u colour sets colour for unfocused window borders."); printf(" -x color sets colour for fixed window borders."); } void sigcatch(int sig) { sigcode = sig; } int main(int argc, char **argv) { uint32_t mask = 0; uint32_t values[2]; char ch; /* Option character */ xcb_void_cookie_t cookie; xcb_generic_error_t *error; xcb_drawable_t root; char *focuscol; char *unfocuscol; char *fixedcol; /* Install signal handlers. */ if (SIG_ERR == signal(SIGINT, sigcatch)) { perror("mcwm: signal"); exit(1); } if (SIG_ERR == signal(SIGSEGV, sigcatch)) { perror("mcwm: signal"); exit(1); } if (SIG_ERR == signal(SIGTERM, sigcatch)) { perror("mcwm: signal"); exit(1); } /* Set up defaults. */ conf.borders = true; conf.terminal = TERMINAL; focuscol = FOCUSCOL; unfocuscol = UNFOCUSCOL; fixedcol = FIXEDCOL; while (1) { ch = getopt(argc, argv, "bt:f:u:x:"); if (-1 == ch) { /* No more options, break out of while loop. */ break; } switch (ch) { case 'b': /* No borders. */ conf.borders = false; break; case 't': conf.terminal = optarg; break; case 'f': focuscol = optarg; break; case 'u': unfocuscol = optarg; break; case 'x': fixedcol = optarg; break; default: printhelp(); exit(0); } /* switch */ } conn = xcb_connect(NULL, NULL); if (xcb_connection_has_error(conn)) { perror("xcb_connect"); exit(1); } /* Get the first screen */ screen = xcb_setup_roots_iterator(xcb_get_setup(conn)).data; root = screen->root; PDEBUG("Screen size: %dx%d\nRoot window: %d\n", screen->width_in_pixels, screen->height_in_pixels, screen->root); /* Get some colours. */ conf.focuscol = getcolor(focuscol); conf.unfocuscol = getcolor(unfocuscol); conf.fixedcol = getcolor(fixedcol); /* Get an atom. */ atom_desktop = xcb_atom_get(conn, "_NET_WM_DESKTOP"); /* Loop over all clients and set up stuff. */ if (0 != setupscreen()) { fprintf(stderr, "Failed to initialize windows. Exiting.\n"); exit(1); } /* Set up key bindings. */ if (0 != setupkeys()) { fprintf(stderr, "mcwm: Couldn't set up keycodes. Exiting."); exit(1); } /* Grab some keys and mouse buttons. */ xcb_grab_key(conn, 1, root, MODKEY, XCB_NO_SYMBOL, XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_ASYNC); xcb_grab_button(conn, 0, root, XCB_EVENT_MASK_BUTTON_PRESS | XCB_EVENT_MASK_BUTTON_RELEASE, XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_ASYNC, root, XCB_NONE, 1 /* left mouse button */, MOUSEMODKEY); xcb_grab_button(conn, 0, root, XCB_EVENT_MASK_BUTTON_PRESS | XCB_EVENT_MASK_BUTTON_RELEASE, XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_ASYNC, root, XCB_NONE, 2 /* middle mouse button */, MOUSEMODKEY); xcb_grab_button(conn, 0, root, XCB_EVENT_MASK_BUTTON_PRESS | XCB_EVENT_MASK_BUTTON_RELEASE, XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_ASYNC, root, XCB_NONE, 3 /* right mouse button */, MOUSEMODKEY); /* Subscribe to events. */ mask = XCB_CW_EVENT_MASK; values[0] = XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT | XCB_EVENT_MASK_STRUCTURE_NOTIFY | XCB_EVENT_MASK_SUBSTRUCTURE_NOTIFY; cookie = xcb_change_window_attributes_checked(conn, root, mask, values); error = xcb_request_check(conn, cookie); xcb_flush(conn); if (NULL != error) { fprintf(stderr, "mcwm: Can't get SUBSTRUCTURE REDIRECT. " "Error code: %d\n" "Another window manager running? Exiting.\n", error->error_code); xcb_disconnect(conn); exit(1); } /* Loop over events. */ events(); /* Die gracefully. */ cleanup(sigcode); exit(0); }