#include #include #include #include #include #include "xcb_wm.h" #include "xcb_aux.h" #include "xcb_event.h" #include "xcb_property.h" #include "xcb_keysyms.h" #include "data.h" Font myfont; static const int TOP = 20; static const int LEFT = 5; static const int BOTTOM = 5; static const int RIGHT = 5; table_t *byChild = 0; table_t *byParent = 0; xcb_window_t root_win; int globalc = 0; Client myc; static const char *labelError[] = { "Success", "BadRequest", "BadValue", "BadWindow", "BadPixmap", "BadAtom", "BadCursor", "BadFont", "BadMatch", "BadDrawable", "BadAccess", "BadAlloc", "BadColor", "BadGC", "BadIDChoice", "BadName", "BadLength", "BadImplementation", }; static const char *labelRequest[] = { "no request", "CreateWindow", "ChangeWindowAttributes", "GetWindowAttributes", "DestroyWindow", "DestroySubwindows", "ChangeSaveSet", "ReparentWindow", "MapWindow", "MapSubwindows", "UnmapWindow", "UnmapSubwindows", "ConfigureWindow", "CirculateWindow", "GetGeometry", "QueryTree", "InternAtom", "GetAtomName", "ChangeProperty", "DeleteProperty", "GetProperty", "ListProperties", "SetSelectionOwner", "GetSelectionOwner", "ConvertSelection", "SendEvent", "GrabPointer", "UngrabPointer", "GrabButton", "UngrabButton", "ChangeActivePointerGrab", "GrabKeyboard", "UngrabKeyboard", "GrabKey", "UngrabKey", "AllowEvents", "GrabServer", "UngrabServer", "QueryPointer", "GetMotionEvents", "TranslateCoords", "WarpPointer", "SetInputFocus", "GetInputFocus", "QueryKeymap", "OpenFont", "CloseFont", "QueryFont", "QueryTextExtents", "ListFonts", "ListFontsWithInfo", "SetFontPath", "GetFontPath", "CreatePixmap", "FreePixmap", "CreateGC", "ChangeGC", "CopyGC", "SetDashes", "SetClipRectangles", "FreeGC", "ClearArea", "CopyArea", "CopyPlane", "PolyPoint", "PolyLine", "PolySegment", "PolyRectangle", "PolyArc", "FillPoly", "PolyFillRectangle", "PolyFillArc", "PutImage", "GetImage", "PolyText", "PolyText", "ImageText", "ImageText", "CreateColormap", "FreeColormap", "CopyColormapAndFree", "InstallColormap", "UninstallColormap", "ListInstalledColormaps", "AllocColor", "AllocNamedColor", "AllocColorCells", "AllocColorPlanes", "FreeColors", "StoreColors", "StoreNamedColor", "QueryColors", "LookupColor", "CreateCursor", "CreateGlyphCursor", "FreeCursor", "RecolorCursor", "QueryBestSize", "QueryExtension", "ListExtensions", "ChangeKeyboardMapping", "GetKeyboardMapping", "ChangeKeyboardControl", "GetKeyboardControl", "Bell", "ChangePointerControl", "GetPointerControl", "SetScreenSaver", "GetScreenSaver", "ChangeHosts", "ListHosts", "SetAccessControl", "SetCloseDownMode", "KillClient", "RotateProperties", "ForceScreenSaver", "SetPointerMapping", "GetPointerMapping", "SetModifierMapping", "GetModifierMapping", "major 120", "major 121", "major 122", "major 123", "major 124", "major 125", "major 126", "NoOperation", }; static const char *labelEvent[] = { "error", "reply", "KeyPress", "KeyRelease", "ButtonPress", "ButtonRelease", "MotionNotify", "EnterNotify", "LeaveNotify", "FocusIn", "FocusOut", "KeymapNotify", "Expose", "GraphicsExpose", "NoExpose", "VisibilityNotify", "CreateNotify", "DestroyNotify", "UnmapNotify", "MapNotify", "MapRequest", "ReparentNotify", "ConfigureNotify", "ConfigureRequest", "GravityNotify", "ResizeRequest", "CirculateNotify", "CirculateRequest", "PropertyNotify", "SelectionClear", "SelectionRequest", "SelectionNotify", "ColormapNotify", "ClientMessage", "MappingNotify", }; static const char *labelSendEvent[] = { "", " (from SendEvent)", }; /* * * TODO: what exactly does this, what happens if we leave stuff out? * */ void manage_window(xcb_property_handlers_t *prophs, xcb_connection_t *c, xcb_window_t window, window_attributes_t wa) { printf("managing window.\n"); xcb_drawable_t d = { window }; xcb_get_geometry_cookie_t geomc; xcb_get_geometry_reply_t *geom; xcb_get_window_attributes_reply_t *attr = 0; if(wa.tag == TAG_COOKIE) { attr = xcb_get_window_attributes_reply(c, wa.u.cookie, 0); if(!attr) return; if(attr->map_state != XCB_MAP_STATE_VIEWABLE) { printf("Window 0x%08x is not mapped. Ignoring.\n", window); free(attr); return; } wa.tag = TAG_VALUE; wa.u.override_redirect = attr->override_redirect; } if(!wa.u.override_redirect && table_get(byChild, window)) { printf("Window 0x%08x already managed. Ignoring.\n", window); free(attr); return; } if(wa.u.override_redirect) { printf("Window 0x%08x has override-redirect set. Ignoring.\n", window); free(attr); return; } geomc = xcb_get_geometry(c, d); if(!attr) { wa.tag = TAG_COOKIE; wa.u.cookie = xcb_get_window_attributes(c, window); attr = xcb_get_window_attributes_reply(c, wa.u.cookie, 0); } geom = xcb_get_geometry_reply(c, geomc, 0); if(attr && geom) { reparent_window(c, window, attr->visual, geom->root, geom->depth, geom->x, geom->y, geom->width, geom->height); xcb_property_changed(prophs, XCB_PROPERTY_NEW_VALUE, window, WM_NAME); } free(attr); free(geom); } static int addClientWindow(xcb_window_t child, xcb_window_t parent, xcb_gcontext_t titlegc) { int success; client_window_t *record = malloc(sizeof(client_window_t)); assert(record); record->child = child; record->parent = parent; record->name_len = 0; record->name = 0; record->titlegc = titlegc; success = table_put(byParent, parent, record) && table_put(byChild, child, record); assert(success); return 1; } /* * Returns the colorpixel to use for the given RGB color code * */ uint32_t get_colorpixel(xcb_connection_t *conn, int r, int g, int b) { xcb_screen_t *root_screen = xcb_setup_roots_iterator(xcb_get_setup(conn)).data; xcb_colormap_t colormapId = xcb_generate_id(conn); /* TODO: we need to get myc.window away here */ xcb_create_colormap(conn, XCB_COLORMAP_ALLOC_NONE, colormapId, myc.window, root_screen->root_visual); xcb_alloc_color_reply_t *reply = xcb_alloc_color_reply(conn, xcb_alloc_color(conn, colormapId, r, g, b), NULL); if (!reply) { printf("color fail\n"); return; } uint32_t pixel = reply->pixel; free(reply); return pixel; } /* * (Re-)draws window decorations for a given Client * */ void decorate_window(xcb_connection_t *conn, Client *client) { uint32_t mask = 0; uint32_t values[3]; xcb_screen_t *root_screen = xcb_setup_roots_iterator(xcb_get_setup(conn)).data; mask = XCB_GC_FOREGROUND | XCB_GC_BACKGROUND | XCB_GC_FONT; xcb_font_t font = xcb_generate_id (conn); char *font_name = "-misc-fixed-medium-r-normal--13-120-75-75-C-70-iso8859-1"; xcb_void_cookie_t fontCookie = xcb_open_font_checked (conn, font, strlen (font_name), font_name ); values[0] = root_screen->black_pixel; if (globalc++ > 1) values[1] = get_colorpixel(conn, 65535, 0, 0); else values[1] = get_colorpixel(conn, 0, 0, 65535); values[2] = font; xcb_change_gc(conn, client->titlegc, mask, values); /* TODO: utf8? */ char *label = "i3 rocks :>"; xcb_void_cookie_t textCookie = xcb_image_text_8_checked (conn, strlen (label), myc.window, myc.titlegc, 2, 15, label ); } /* * Let’s own this window… * */ void reparent_window(xcb_connection_t *conn, xcb_window_t child, xcb_visualid_t visual, xcb_window_t root, uint8_t depth, int16_t x, int16_t y, uint16_t width, uint16_t height) { xcb_drawable_t drawable; uint32_t mask = 0; uint32_t values[3]; xcb_screen_t *root_screen = xcb_setup_roots_iterator(xcb_get_setup(conn)).data; myc.window = xcb_generate_id(conn); /* TODO: what do these mean? */ mask |= XCB_CW_BACK_PIXEL; values[0] = root_screen->white_pixel; mask |= XCB_CW_OVERRIDE_REDIRECT; values[1] = 1; mask |= XCB_CW_EVENT_MASK; values[2] = XCB_EVENT_MASK_BUTTON_PRESS | XCB_EVENT_MASK_BUTTON_RELEASE | XCB_EVENT_MASK_EXPOSURE /* | XCB_EVENT_MASK_ENTER_WINDOW | XCB_EVENT_MASK_LEAVE_WINDOW */; printf("Reparenting 0x%08x under 0x%08x.\n", child, myc.window); /* Yo dawg, I heard you like windows, so I create a window around your window… */ xcb_create_window(conn, depth, myc.window, root, x, y, width + LEFT + RIGHT, height + TOP + BOTTOM, /* border_width */ 0, XCB_WINDOW_CLASS_INPUT_OUTPUT, visual, mask, values); xcb_change_save_set(conn, XCB_SET_MODE_INSERT, child); /* Map the window on the screen (= make it visible) */ xcb_map_window(conn, myc.window); /* Generate a graphics context for the titlebar */ myc.titlegc = xcb_generate_id(conn); xcb_create_gc(conn, myc.titlegc, myc.window, 0, 0); /* Draw decorations */ decorate_window(conn, &myc); /* add the title context as a child for the window */ /* TODO: replace this, it's internal */ addClientWindow(child, myc.window, myc.titlegc); /* Moves the original window into the new frame we've created for it */ /* TODO: hmm, LEFT/TOP needs to go */ xcb_reparent_window(conn, child, myc.window, LEFT - 1, TOP - 1); /* We are interested in property changes */ mask = XCB_CW_EVENT_MASK; values[0] = XCB_EVENT_MASK_PROPERTY_CHANGE | XCB_EVENT_MASK_STRUCTURE_NOTIFY; xcb_change_window_attributes(conn, child, mask, values); /* TODO: At the moment, new windows just get focus */ xcb_get_input_focus_reply_t *reply = xcb_get_input_focus_reply(conn, xcb_get_input_focus(conn), NULL); if (reply) { printf("got focus info\n"); printf("focus is at %p\n", reply->focus); printf("window is at %p\n", myc.window); free(reply); } xcb_set_input_focus(conn, XCB_INPUT_FOCUS_NONE, myc.window, XCB_CURRENT_TIME); xcb_set_input_focus(conn, XCB_INPUT_FOCUS_POINTER_ROOT, myc.window, XCB_CURRENT_TIME); reply = xcb_get_input_focus_reply(conn, xcb_get_input_focus(conn), NULL); if (reply) { printf("got focus info\n"); printf("focus is at %p\n", reply->focus); printf("window is at %p\n", myc.window); free(reply); } #if 0 xcb_intern_atom_cookie_t atom_cookie = xcb_intern_atom(conn, 0, strlen("_NET_ACTIVE_WINDOW"), "_NET_ACTIVE_WINDOW"); xcb_intern_atom_reply_t *reply = xcb_intern_atom_reply(conn, atom_cookie, NULL); int atom = -1; if (reply) { atom = reply->atom; printf("setting atom %d\n", atom); free(reply); } printf("atom = %d\n", atom); xcb_change_property(conn, XCB_PROP_MODE_REPLACE, root, atom, WINDOW, 32, /* format, see http://standards.freedesktop.org/wm-spec/1.3/ar01s03.html */ 1, /* source indication? FIXME */ &myc.window); #endif xcb_flush(conn); } int format_event(xcb_generic_event_t *e) { uint8_t sendEvent; uint16_t seqnum; sendEvent = (e->response_type & 0x80) ? 1 : 0; e->response_type &= ~0x80; seqnum = *((uint16_t *) e + 1); switch(e->response_type) { case 0: printf("Error %s on seqnum %d (%s).\n", labelError[*((uint8_t *) e + 1)], seqnum, labelRequest[*((uint8_t *) e + 10)]); break; default: printf("Event %s following seqnum %d%s.\n", labelEvent[e->response_type], seqnum, labelSendEvent[sendEvent]); break; case XCB_KEYMAP_NOTIFY: printf("Event %s%s.\n", labelEvent[e->response_type], labelSendEvent[sendEvent]); break; } fflush(stdout); return 1; } static int handleEvent(void *ignored, xcb_connection_t *c, xcb_generic_event_t *e) { return format_event(e); } /* * There was a key press. We lookup the key symbol and see if there are any bindings * on that. This allows to do things like binding special characters (think of ä) to * functions to get one more modifier while not losing AltGr :-) * */ static int handle_key_press(void *ignored, xcb_connection_t *conn, xcb_generic_event_t *e) { xcb_key_press_event_t *event = (xcb_key_press_event_t*)e; /* FIXME: We need to translate the keypress + state into a string (like, ä) because they do not generate keysyms (use xev and see for yourself) */ printf("oh yay!\n"); printf("gots press %d\n", event->detail); printf("i'm in state %d\n", event->state); if (event->detail == 46) { /* 't' */ pid_t pid; if ((pid = vfork()) == 0) { /* Child */ /* TODO: what environment do we need to pass? */ char *env[2]; env[0] = "DISPLAY=:1"; env[1] = NULL; char *argv[2]; argv[0] = "/usr/bin/xterm"; argv[1] = NULL; execve("/usr/bin/xterm", argv, env); } } else if (event->detail == 38) { xcb_set_input_focus(conn, XCB_INPUT_FOCUS_POINTER_ROOT, myc.window, XCB_CURRENT_TIME); } //decorate_window(c, &myc); return format_event(e); } static int handle_motion(void *ignored, xcb_connection_t *conn, xcb_generic_event_t *e) { xcb_motion_notify_event_t *event = (xcb_motion_notify_event_t*)e; printf("i gots a motion: %d, %d\n", event->event_x, event->event_y); printf("@root that is: %d, %d\n", event->root_x, event->root_y); if (event->root_x < 50) { printf("setting focus\n"); xcb_set_input_focus(conn, XCB_INPUT_FOCUS_POINTER_ROOT, myc.window, XCB_CURRENT_TIME); } } static void redrawWindow(xcb_connection_t *c, client_window_t *client) { printf("redrawing window.\n"); xcb_drawable_t d = { client->parent }; if(!client->name_len) return; xcb_clear_area(c, 0, d, 0, 0, 0, 0); xcb_image_text_8(c, client->name_len, d, client->titlegc, LEFT - 1, TOP - 4, client->name); xcb_flush(c); } int handle_map_notify_event(void *prophs, xcb_connection_t *c, xcb_map_notify_event_t *e) { window_attributes_t wa = { TAG_VALUE }; wa.u.override_redirect = e->override_redirect; printf("MapNotify for 0x%08x.\n", e->window); manage_window(prophs, c, e->window, wa); return 1; } int handle_unmap_notify_event(void *data, xcb_connection_t *c, xcb_unmap_notify_event_t *e) { client_window_t *client = table_remove(byChild, e->event); xcb_window_t root; printf("UnmapNotify for 0x%08x (received from 0x%08x): ", e->window, e->event); if(!client) { printf("not a managed window. Ignoring.\n"); return 0; } root = xcb_setup_roots_iterator(xcb_get_setup(c)).data->root; printf("child of 0x%08x.\n", client->parent); xcb_reparent_window(c, client->child, root, 0, 0); xcb_destroy_window(c, client->parent); xcb_flush(c); table_remove(byParent, client->parent); free(client); return 1; } static int handleExposeEvent(void *data, xcb_connection_t *c, xcb_expose_event_t *e) { printf("exposeevent\n"); client_window_t *client = table_get(byParent, e->window); if(!client || e->count != 0) return 1; redrawWindow(c, client); return 1; } void manage_existing_windows(xcb_connection_t *c, xcb_property_handlers_t *prophs, xcb_window_t root) { xcb_query_tree_cookie_t wintree; xcb_query_tree_reply_t *rep; int i, len; xcb_window_t *children; xcb_get_window_attributes_cookie_t *cookies; wintree = xcb_query_tree(c, root); rep = xcb_query_tree_reply(c, wintree, 0); if(!rep) return; len = xcb_query_tree_children_length(rep); cookies = malloc(len * sizeof(*cookies)); if(!cookies) { free(rep); return; } children = xcb_query_tree_children(rep); for(i = 0; i < len; ++i) cookies[i] = xcb_get_window_attributes(c, children[i]); for(i = 0; i < len; ++i) { window_attributes_t wa = { TAG_COOKIE, { cookies[i] } }; manage_window(prophs, c, children[i], wa); } free(rep); } int main() { xcb_connection_t *c; xcb_event_handlers_t evenths; xcb_property_handlers_t prophs; xcb_window_t root; int screens; memset(&evenths, 0, sizeof(xcb_event_handlers_t)); memset(&prophs, 0, sizeof(xcb_property_handlers_t)); byChild = alloc_table(); byParent = alloc_table(); c = xcb_connect(NULL, &screens); printf("x screen is %d\n", screens); /* Font loading */ char *pattern = "-misc-fixed-medium-r-normal--13-120-75-75-C-70-iso8859-1"; xcb_list_fonts_with_info_cookie_t cookie = xcb_list_fonts_with_info(c, 1, strlen(pattern), pattern); xcb_list_fonts_with_info_reply_t *reply = xcb_list_fonts_with_info_reply(c, cookie, NULL); if (!reply) { printf("Could not load font\n"); return 1; } myfont.name = strdup(xcb_list_fonts_with_info_name(reply)); myfont.height = reply->font_ascent + reply->font_descent; xcb_event_handlers_init(c, &evenths); int i; for(i = 2; i < 128; ++i) xcb_event_set_handler(&evenths, i, handleEvent, 0); xcb_event_set_handler(&evenths, XCB_KEY_PRESS, handle_key_press, 0); xcb_event_set_handler(&evenths, XCB_MOTION_NOTIFY, handle_motion, 0); for(i = 0; i < 256; ++i) xcb_event_set_error_handler(&evenths, i, (xcb_generic_error_handler_t) handleEvent, 0); /* Expose = an Application should redraw itself. That is, we have to redraw our * contents (= Bars) */ xcb_event_set_expose_handler(&evenths, handleExposeEvent, 0); xcb_event_set_unmap_notify_handler(&evenths, handle_unmap_notify_event, 0); xcb_property_handlers_init(&prophs, &evenths); xcb_event_set_map_notify_handler(&evenths, handle_map_notify_event, &prophs); root = xcb_aux_get_screen(c, screens)->root; root_win = root; uint32_t mask = XCB_CW_EVENT_MASK; uint32_t values[] = { XCB_EVENT_MASK_SUBSTRUCTURE_NOTIFY | XCB_EVENT_MASK_PROPERTY_CHANGE }; xcb_change_window_attributes(c, root, mask, values); /* Grab 'a' */ //xcb_grab_key(c, 0, root, 0, 38, XCB_GRAB_MODE_SYNC, XCB_GRAB_MODE_ASYNC); xcb_grab_key(c, 0, root, 0, 46, XCB_GRAB_MODE_SYNC, XCB_GRAB_MODE_ASYNC); #if 0 if (xcb_grab_pointer_reply(c, xcb_grab_pointer_unchecked(c, 0, root, XCB_EVENT_MASK_BUTTON_PRESS | XCB_EVENT_MASK_BUTTON_RELEASE | XCB_EVENT_MASK_ENTER_WINDOW | XCB_EVENT_MASK_LEAVE_WINDOW | XCB_EVENT_MASK_POINTER_MOTION, XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_ASYNC, XCB_NONE, XCB_NONE, XCB_CURRENT_TIME), NULL)) printf("could not grab pointer\n"); #endif //xcb_grab_key(c, 0, root, XCB_BUTTON_MASK_ANY, 40, XCB_GRAB_MODE_SYNC, XCB_GRAB_MODE_ASYNC); /* 't' */ pid_t pid; if ((pid = vfork()) == 0) { /* Child */ /* TODO: what environment do we need to pass? */ char *env[2]; env[0] = "DISPLAY=:1"; env[1] = NULL; char *argv[3]; argv[0] = "/usr/bin/xterm"; argv[1] = NULL; execve("/usr/bin/xterm", argv, env); } xcb_flush(c); manage_existing_windows(c, &prophs, root); xcb_event_wait_for_event_loop(&evenths); }