/* $Id: desktop.c,v 1.55 2009/08/12 07:26:17 khorben Exp $ */ /* Copyright (c) 2009 Pierre Pronchery */ /* This file is part of DeforaOS Desktop Browser */ /* This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, version 3 of the License. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "mime.h" #include "desktop.h" #define PACKAGE "desktop" #define COMMON_DND #define COMMON_EXEC #include "common.c" /* constants */ #define DESKTOP ".desktop" #define DESKTOPRC ".desktoprc" /* DesktopIcon */ /* types */ struct _Desktop { DesktopIcon ** icon; size_t icon_cnt; Mime * mime; char const * home; char * path; size_t path_cnt; DIR * refresh_dir; time_t refresh_mti; GdkWindow * root; GdkPixbuf * background; GtkIconTheme * theme; GdkPixbuf * file; GdkPixbuf * folder; GtkWidget * menu; gint width; gint height; }; struct _DesktopIcon { Desktop * desktop; char * path; int isdir; int isexec; char const * mimetype; gboolean selected; gboolean updated; /* XXX for desktop refresh */ GtkWidget * window; GtkWidget * image; GtkWidget * event; GtkWidget * label; }; /* constants */ #define DESKTOPICON_ICON_SIZE 48 #define DESKTOPICON_MAX_HEIGHT 100 #define DESKTOPICON_MAX_WIDTH 100 #define DESKTOPICON_MIN_HEIGHT (DESKTOPICON_ICON_SIZE << 1) #define DESKTOPICON_MIN_WIDTH DESKTOPICON_MAX_WIDTH /* functions */ /* private */ static void _desktopicon_update_transparency(DesktopIcon * desktopicon, GdkPixbuf * icon); static void _desktopicon_update_transparency(DesktopIcon * desktopicon, GdkPixbuf * icon) { int width; int height; int iwidth; int iheight; GdkBitmap * mask; GdkBitmap * iconmask; GdkGC * gc; GdkColor black = { 0, 0, 0, 0 }; GdkColor white = { 0xffffffff, 0xffff, 0xffff, 0xffff }; GtkRequisition req; int offset; gtk_window_get_size(GTK_WINDOW(desktopicon->window), &width, &height); iwidth = gdk_pixbuf_get_width(icon); iheight = gdk_pixbuf_get_height(icon); #ifdef DEBUG fprintf(stderr, "DEBUG: %s(%s) window is %dx%d\n", __func__, desktopicon->path, width, height); #endif mask = gdk_pixmap_new(NULL, width, height, 1); gdk_pixbuf_render_pixmap_and_mask(icon, NULL, &iconmask, 255); gc = gdk_gc_new(mask); gdk_gc_set_foreground(gc, &black); gdk_draw_rectangle(mask, gc, TRUE, 0, 0, width, height); gdk_draw_drawable(mask, gc, iconmask, 0, 0, (width - iwidth) / 2, (DESKTOPICON_ICON_SIZE + 8 - iheight) / 2, -1, -1); gdk_gc_set_foreground(gc, &white); gtk_widget_size_request(desktopicon->label, &req); #ifdef DEBUG fprintf(stderr, "DEBUG: %s(%s) label is %dx%d\n", __func__, desktopicon->path, req.width, req.height); #endif offset = DESKTOPICON_ICON_SIZE + 8; gdk_draw_rectangle(mask, gc, TRUE, (width - req.width - 8) / 2, offset + ((height - offset - req.height - 8) / 2), req.width + 8, req.height + 8); gtk_widget_shape_combine_mask(desktopicon->window, mask, 0, 0); g_object_unref(gc); g_object_unref(iconmask); g_object_unref(mask); } /* desktopicon_new */ /* callbacks */ static gboolean _on_desktopicon_closex(GtkWidget * widget, GdkEvent * event, gpointer data); static gboolean _on_icon_button_press(GtkWidget * widget, GdkEventButton * event, gpointer data); static gboolean _on_icon_key_press(GtkWidget * widget, GdkEventKey * event, gpointer data); static void _on_icon_drag_data_get(GtkWidget * widget, GdkDragContext * context, GtkSelectionData * seldata, guint info, guint time, gpointer data); static void _on_icon_drag_data_received(GtkWidget * widget, GdkDragContext * context, gint x, gint y, GtkSelectionData * seldata, guint info, guint time, gpointer data); DesktopIcon * desktopicon_new(Desktop * desktop, char const * name, char const * path) { DesktopIcon * desktopicon; GtkWindow * window; struct stat st; GdkGeometry geometry; GtkWidget * vbox; GtkWidget * eventbox; GtkTargetEntry targets[] = { { "deforaos_browser_dnd", 0, 0 } }; size_t targets_cnt = sizeof(targets) / sizeof(*targets); GdkPixbuf * icon = NULL; char * p; GtkLabel * label; if((desktopicon = malloc(sizeof(*desktopicon))) == NULL) return NULL; if((desktopicon->path = strdup(path)) == NULL) { free(desktopicon); return NULL; } desktopicon->desktop = desktop; desktopicon->isdir = 0; desktopicon->isexec = 0; desktopicon->mimetype = NULL; desktopicon->selected = 0; desktopicon->updated = 1; desktopicon->window = gtk_window_new(GTK_WINDOW_TOPLEVEL); window = GTK_WINDOW(desktopicon->window); gtk_window_set_type_hint(window, GDK_WINDOW_TYPE_HINT_DOCK); gtk_window_set_resizable(window, FALSE); gtk_window_set_decorated(window, FALSE); gtk_window_set_keep_below(window, TRUE); #if GTK_CHECK_VERSION(2, 6, 0) gtk_window_set_focus_on_map(window, FALSE); #endif g_signal_connect(G_OBJECT(desktopicon->window), "delete-event", G_CALLBACK(_on_desktopicon_closex), desktopicon); vbox = gtk_vbox_new(FALSE, 4); geometry.min_width = DESKTOPICON_MIN_WIDTH; geometry.min_height = DESKTOPICON_MIN_HEIGHT; geometry.max_width = DESKTOPICON_MAX_WIDTH; geometry.max_height = DESKTOPICON_MAX_HEIGHT; geometry.base_width = DESKTOPICON_MIN_WIDTH; geometry.base_height = DESKTOPICON_MIN_HEIGHT; gtk_window_set_geometry_hints(window, vbox, &geometry, GDK_HINT_MIN_SIZE | GDK_HINT_MAX_SIZE | GDK_HINT_BASE_SIZE); /* icon */ if(stat(path, &st) == 0) { if(S_ISDIR(st.st_mode)) { desktopicon->isdir = 1; icon = desktop->folder; } else if(st.st_mode & S_IXUSR) { desktopicon->isexec = 1; mime_icons(desktop->mime, desktop->theme, "application/x-executable", DESKTOPICON_ICON_SIZE, &icon, -1); } else if((desktopicon->mimetype = mime_type(desktop->mime, path)) != NULL) mime_icons(desktop->mime, desktop->theme, desktopicon->mimetype, DESKTOPICON_ICON_SIZE, &icon, -1); } if(icon == NULL) icon = desktop->file; eventbox = gtk_event_box_new(); gtk_drag_source_set(eventbox, GDK_BUTTON1_MASK, targets, targets_cnt, GDK_ACTION_COPY | GDK_ACTION_MOVE); gtk_drag_dest_set(eventbox, GTK_DEST_DEFAULT_ALL, targets, targets_cnt, GDK_ACTION_COPY | GDK_ACTION_MOVE); g_signal_connect(G_OBJECT(eventbox), "button-press-event", G_CALLBACK(_on_icon_button_press), desktopicon); g_signal_connect(G_OBJECT(eventbox), "key-press-event", G_CALLBACK(_on_icon_key_press), desktopicon); g_signal_connect(G_OBJECT(eventbox), "drag-data-get", G_CALLBACK(_on_icon_drag_data_get), desktopicon); g_signal_connect(G_OBJECT(eventbox), "drag-data-received", G_CALLBACK(_on_icon_drag_data_received), desktopicon); desktopicon->event = eventbox; desktopicon->image = gtk_image_new_from_pixbuf(icon); gtk_widget_set_size_request(desktopicon->image, DESKTOPICON_MIN_WIDTH, DESKTOPICON_ICON_SIZE); gtk_box_pack_start(GTK_BOX(vbox), desktopicon->image, FALSE, TRUE, 4); if((p = g_filename_to_utf8(name, -1, NULL, NULL, NULL)) != NULL) name = p; desktopicon->label = gtk_label_new(name); label = GTK_LABEL(desktopicon->label); gtk_label_set_justify(label, GTK_JUSTIFY_CENTER); #if GTK_CHECK_VERSION(2, 10, 0) gtk_label_set_line_wrap_mode(label, PANGO_WRAP_WORD_CHAR); #endif gtk_label_set_line_wrap(label, TRUE); gtk_box_pack_start(GTK_BOX(vbox), desktopicon->label, TRUE, FALSE, 4); gtk_container_add(GTK_CONTAINER(eventbox), vbox); gtk_container_add(GTK_CONTAINER(desktopicon->window), eventbox); _desktopicon_update_transparency(desktopicon, icon); return desktopicon; } /* callbacks */ static gboolean _on_desktopicon_closex(GtkWidget * widget, GdkEvent * event, gpointer data) { DesktopIcon * di = data; gtk_widget_hide(widget); desktopicon_delete(di); return TRUE; } /* FIXME some code is duplicated from callback.c */ /* types */ static void _popup_directory(GtkWidget * menu, DesktopIcon * desktopicon); static void _popup_file(GtkWidget * menu, DesktopIcon * desktopicon); static void _popup_mime(Mime * mime, char const * mimetype, char const * action, char const * label, GCallback callback, DesktopIcon * icon, GtkWidget * menu); /* callbacks */ static void _on_icon_open(GtkWidget * widget, gpointer data); static void _on_icon_edit(GtkWidget * widget, gpointer data); static void _on_icon_run(GtkWidget * widget, gpointer data); static void _on_icon_open_with(GtkWidget * widget, gpointer data); static void _on_icon_delete(GtkWidget * widget, gpointer data); static void _on_icon_properties(GtkWidget * widget, gpointer data); static gboolean _on_icon_button_press(GtkWidget * widget, GdkEventButton * event, gpointer data) { DesktopIcon * desktopicon = data; GtkWidget * menu; GtkWidget * menuitem; if(event->state & GDK_CONTROL_MASK) desktopicon_set_selected(desktopicon, !desktopicon_get_selected( desktopicon)); else { desktop_unselect_all(desktopicon->desktop); desktopicon_set_selected(desktopicon, TRUE); } if(event->type == GDK_2BUTTON_PRESS && event->button == 1) { _on_icon_open(widget, desktopicon); return FALSE; } if(event->type != GDK_BUTTON_PRESS || event->button != 3) return FALSE; menu = gtk_menu_new(); if(desktopicon->isdir) _popup_directory(menu, desktopicon); else _popup_file(menu, desktopicon); menuitem = gtk_separator_menu_item_new(); gtk_menu_shell_append(GTK_MENU_SHELL(menu), menuitem); menuitem = gtk_image_menu_item_new_from_stock(GTK_STOCK_DELETE, NULL); g_signal_connect(G_OBJECT(menuitem), "activate", G_CALLBACK( _on_icon_delete), desktopicon); gtk_menu_shell_append(GTK_MENU_SHELL(menu), menuitem); menuitem = gtk_separator_menu_item_new(); gtk_menu_shell_append(GTK_MENU_SHELL(menu), menuitem); menuitem = gtk_image_menu_item_new_from_stock( GTK_STOCK_PROPERTIES, NULL); g_signal_connect(G_OBJECT(menuitem), "activate", G_CALLBACK( _on_icon_properties), desktopicon); gtk_menu_shell_append(GTK_MENU_SHELL(menu), menuitem); gtk_widget_show_all(menu); gtk_menu_popup(GTK_MENU(menu), NULL, NULL, NULL, NULL, 3, event->time); return TRUE; } static void _popup_directory(GtkWidget * menu, DesktopIcon * desktopicon) { GtkWidget * menuitem; menuitem = gtk_image_menu_item_new_from_stock(GTK_STOCK_OPEN, NULL); g_signal_connect(G_OBJECT(menuitem), "activate", G_CALLBACK( _on_icon_open), desktopicon); gtk_menu_shell_append(GTK_MENU_SHELL(menu), menuitem); } static void _popup_file(GtkWidget * menu, DesktopIcon * desktopicon) { GtkWidget * menuitem; _popup_mime(desktopicon->desktop->mime, desktopicon->mimetype, "open", GTK_STOCK_OPEN, G_CALLBACK(_on_icon_open), desktopicon, menu); _popup_mime(desktopicon->desktop->mime, desktopicon->mimetype, "edit", #if GTK_CHECK_VERSION(2, 6, 0) GTK_STOCK_EDIT, #else "_Edit", #endif G_CALLBACK(_on_icon_edit), desktopicon, menu); if(desktopicon->isexec) { menuitem = gtk_image_menu_item_new_from_stock(GTK_STOCK_EXECUTE, NULL); g_signal_connect(G_OBJECT(menuitem), "activate", G_CALLBACK( _on_icon_run), desktopicon); gtk_menu_shell_append(GTK_MENU_SHELL(menu), menuitem); } menuitem = gtk_menu_item_new_with_mnemonic("Open _with..."); g_signal_connect(G_OBJECT(menuitem), "activate", G_CALLBACK( _on_icon_open_with), desktopicon); gtk_menu_shell_append(GTK_MENU_SHELL(menu), menuitem); } static void _popup_mime(Mime * mime, char const * mimetype, char const * action, char const * label, GCallback callback, DesktopIcon * desktopicon, GtkWidget * menu) { GtkWidget * menuitem; if(mime_get_handler(mime, mimetype, action) == NULL) return; if(strncmp(label, "gtk-", 4) == 0) menuitem = gtk_image_menu_item_new_from_stock(label, NULL); else menuitem = gtk_menu_item_new_with_mnemonic(label); g_signal_connect(G_OBJECT(menuitem), "activate", callback, desktopicon); gtk_menu_shell_append(GTK_MENU_SHELL(menu), menuitem); } static void _on_icon_open(GtkWidget * widget, gpointer data) { DesktopIcon * desktopicon = data; pid_t pid; if(desktopicon->isdir == 0) { if(desktopicon->desktop->mime != NULL) /* XXX ugly */ if(mime_action(desktopicon->desktop->mime, "open", desktopicon->path) != 0) _on_icon_open_with(widget, desktopicon); return; } if((pid = fork()) == -1) { desktop_error(desktopicon->desktop, "fork", 0); return; } if(pid != 0) return; execlp("browser", "browser", "--", desktopicon->path, NULL); fprintf(stderr, "%s%s\n", "desktop: browser: ", strerror(errno)); exit(127); } static void _on_icon_edit(GtkWidget * widget, gpointer data) { DesktopIcon * desktopicon = data; mime_action(desktopicon->desktop->mime, "edit", desktopicon->path); } static void _on_icon_run(GtkWidget * widget, gpointer data) { DesktopIcon * desktopicon = data; GtkWidget * dialog; int res; pid_t pid; dialog = gtk_message_dialog_new(NULL, GTK_DIALOG_MODAL, GTK_MESSAGE_WARNING, GTK_BUTTONS_YES_NO, "%s", "Warning"); gtk_message_dialog_format_secondary_text(GTK_MESSAGE_DIALOG(dialog), "%s", "Are you sure you want to execute this file?"); gtk_window_set_title(GTK_WINDOW(dialog), "Warning"); res = gtk_dialog_run(GTK_DIALOG(dialog)); gtk_widget_destroy(dialog); if(res != GTK_RESPONSE_YES) return; if((pid = fork()) == -1) desktop_error(desktopicon->desktop, "fork", 0); else if(pid == 0) { execl(desktopicon->path, desktopicon->path, NULL); desktop_error(NULL, desktopicon->path, 0); exit(127); } } static void _on_icon_open_with(GtkWidget * widget, gpointer data) { DesktopIcon * desktopicon = data; GtkWidget * dialog; char * filename = NULL; pid_t pid; dialog = gtk_file_chooser_dialog_new("Open with...", GTK_WINDOW(desktopicon->window), GTK_FILE_CHOOSER_ACTION_OPEN, GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL, GTK_STOCK_OPEN, GTK_RESPONSE_ACCEPT, NULL); if(gtk_dialog_run(GTK_DIALOG(dialog)) == GTK_RESPONSE_ACCEPT) filename = gtk_file_chooser_get_filename(GTK_FILE_CHOOSER( dialog)); gtk_widget_destroy(dialog); if(filename == NULL) return; if((pid = fork()) == -1) desktop_error(desktopicon->desktop, "fork", 0); else if(pid == 0) { execlp(filename, filename, desktopicon->path, NULL); desktop_error(NULL, filename, 0); exit(127); } g_free(filename); } static void _on_icon_delete(GtkWidget * widget, gpointer data) { DesktopIcon * desktopicon = data; /* FIXME actually delete the file, and wait for the refresh */ desktop_icon_remove(desktopicon->desktop, desktopicon); } static void _on_icon_properties(GtkWidget * widget, gpointer data) { DesktopIcon * desktopicon = data; pid_t pid; if((pid = fork()) == -1) { desktop_error(desktopicon->desktop, "fork", 0); return; } else if(pid != 0) return; execlp("properties", "properties", "--", desktopicon->path, NULL); desktop_error(NULL, "properties", 0); exit(127); } static gboolean _on_icon_key_press(GtkWidget * widget, GdkEventKey * event, gpointer data) /* FIXME handle shift and control */ { DesktopIcon * desktopicon = data; if(event->type != GDK_KEY_PRESS) return FALSE; if(event->keyval == GDK_uparrow) { desktop_unselect_all(desktopicon->desktop); desktop_select_above(desktopicon->desktop, desktopicon); } else if(event->keyval == GDK_downarrow) { desktop_unselect_all(desktopicon->desktop); desktop_select_under(desktopicon->desktop, desktopicon); } else /* not handling it */ return FALSE; return TRUE; } static void _on_icon_drag_data_get(GtkWidget * widget, GdkDragContext * context, GtkSelectionData * seldata, guint info, guint time, gpointer data) { DesktopIcon * desktopicon = data; Desktop * desktop = desktopicon->desktop; size_t i; size_t len; unsigned char * p; seldata->format = 8; seldata->data = NULL; seldata->length = 0; for(i = 0; i < desktop->icon_cnt; i++) { if(desktop->icon[i]->selected != TRUE) continue; len = strlen(desktop->icon[i]->path) + 1; if((p = realloc(seldata->data, seldata->length + len)) == NULL) continue; /* XXX report error */ seldata->data = p; memcpy(&p[seldata->length], desktop->icon[i]->path, len); seldata->length += len; } } static void _on_icon_drag_data_received(GtkWidget * widget, GdkDragContext * context, gint x, gint y, GtkSelectionData * seldata, guint info, guint time, gpointer data) { DesktopIcon * desktopicon = data; if(_common_drag_data_received(context, seldata, desktopicon->path) != 0) desktop_error(desktopicon->desktop, "fork", 0); } /* desktopicon_delete */ void desktopicon_delete(DesktopIcon * desktopicon) { free(desktopicon->path); gtk_widget_destroy(desktopicon->window); free(desktopicon); } /* accessors */ /* desktopicon_get_path */ char const * desktopicon_get_path(DesktopIcon * desktopicon) { return desktopicon->path; } /* desktopicon_get_selected */ gboolean desktopicon_get_selected(DesktopIcon * desktopicon) { return desktopicon->selected; } /* desktopicon_set_icon */ void desktopicon_set_icon(DesktopIcon * desktopicon, GdkPixbuf * icon) { gtk_image_set_from_pixbuf(GTK_IMAGE(desktopicon->image), icon); _desktopicon_update_transparency(desktopicon, icon); } /* desktopicon_set_selected */ void desktopicon_set_selected(DesktopIcon * desktopicon, gboolean selected) { #ifdef DEBUG fprintf(stderr, "DEBUG: %p is %s\n", desktopicon, selected ? "selected" : "deselected"); #endif desktopicon->selected = selected; gtk_widget_set_state(desktopicon->event, selected ? GTK_STATE_SELECTED : GTK_STATE_NORMAL); } /* useful */ /* desktopicon_move */ void desktopicon_move(DesktopIcon * desktopicon, int x, int y) { gtk_window_move(GTK_WINDOW(desktopicon->window), x, y); } /* desktopicon_show */ void desktopicon_show(DesktopIcon * desktopicon) { gtk_widget_show_all(desktopicon->window); } /* Desktop */ /* private */ /* prototypes */ static int _desktop_error(Desktop * desktop, char const * message, char const * error, int ret); static int _desktop_serror(Desktop * desktop, char const * message, int ret); /* public */ /* functions */ /* desktop_new */ static Desktop * _new_error(Desktop * desktop, char const * message); static int _new_create_desktop(Desktop * desktop); static void _new_add_home(Desktop * desktop); /* callbacks */ /* FIXME implement desktop resizing callback */ static gboolean _new_idle(gpointer data); static GdkFilterReturn _new_on_root_event(GdkXEvent * xevent, GdkEvent * event, gpointer data); Desktop * desktop_new(void) { Desktop * desktop; char * file[] = { "gnome-fs-regular", #if GTK_CHECK_VERSION(2, 6, 0) GTK_STOCK_FILE, #endif GTK_STOCK_MISSING_IMAGE, NULL }; char * folder[] = { "gnome-fs-directory", #if GTK_CHECK_VERSION(2, 6, 0) GTK_STOCK_DIRECTORY, #endif GTK_STOCK_MISSING_IMAGE, NULL }; char ** p; gint x; gint y; gint depth; if((desktop = malloc(sizeof(*desktop))) == NULL) return NULL; desktop->icon = NULL; desktop->icon_cnt = 0; desktop->path = NULL; if((desktop->mime = mime_new()) == NULL || (desktop->icon = malloc(sizeof(*(desktop->icon)) * desktop->icon_cnt)) == NULL) { desktop_delete(desktop); return NULL; } desktop->theme = gtk_icon_theme_get_default(); desktop->file = NULL; for(p = file; *p != NULL && desktop->file == NULL; p++) desktop->file = gtk_icon_theme_load_icon(desktop->theme, *p, DESKTOPICON_ICON_SIZE, 0, NULL); desktop->folder = NULL; for(p = folder; *p != NULL && desktop->folder == NULL; p++) desktop->folder = gtk_icon_theme_load_icon(desktop->theme, *p, DESKTOPICON_ICON_SIZE, 0, NULL); if((desktop->home = getenv("HOME")) == NULL && (desktop->home = g_get_home_dir()) == NULL) desktop->home = "/"; if(_new_create_desktop(desktop) != 0) return _new_error(desktop, "Creating desktop"); _new_add_home(desktop); desktop_refresh(desktop); /* manage root window events */ desktop->menu = NULL; desktop->root = gdk_screen_get_root_window( gdk_display_get_default_screen( gdk_display_get_default())); gdk_window_get_geometry(desktop->root, &x, &y, &desktop->width, &desktop->height, &depth); gdk_window_set_events(desktop->root, gdk_window_get_events( desktop->root) | GDK_BUTTON_PRESS_MASK); gdk_window_add_filter(desktop->root, _new_on_root_event, desktop); /* draw background when idle */ g_idle_add(_new_idle, desktop); return desktop; } static Desktop * _new_error(Desktop * desktop, char const * message) { desktop_error(desktop, message, -1); desktop_delete(desktop); return NULL; } static int _new_create_desktop(Desktop * desktop) { struct stat st; desktop->path_cnt = strlen(desktop->home) + strlen("/" DESKTOP) + 1; if((desktop->path = malloc(desktop->path_cnt)) == NULL) return 1; snprintf(desktop->path, desktop->path_cnt, "%s%s", desktop->home, "/" DESKTOP); if(lstat(desktop->path, &st) == 0) { if(!S_ISDIR(st.st_mode)) { errno = ENOTDIR; return 1; } } else if(mkdir(desktop->path, 0777) != 0) return 1; return 0; } static void _new_add_home(Desktop * desktop) { DesktopIcon * desktopicon; GdkPixbuf * icon; if((desktopicon = desktopicon_new(desktop, "Home", desktop->home)) == NULL) return; desktop_icon_add(desktop, desktopicon); icon = gtk_icon_theme_load_icon(desktop->theme, "gnome-home", DESKTOPICON_ICON_SIZE, 0, NULL); if(icon == NULL) icon = gtk_icon_theme_load_icon(desktop->theme, "gnome-fs-home", DESKTOPICON_ICON_SIZE, 0, NULL); if(icon != NULL) desktopicon_set_icon(desktopicon, icon); } static gboolean _new_idle(gpointer data) { Desktop * desktop = data; Config * config; char * pathname; char const * p; GError * error = NULL; #ifdef DEBUG fprintf(stderr, "DEBUG: %s()\n", __func__); #endif if((config = config_new()) == NULL || (pathname = string_new_append(desktop->home, "/", DESKTOPRC, NULL)) == NULL) { if(config != NULL) config_delete(config); return _desktop_serror(desktop, "Could not load preferences", FALSE); } if(config_load(config, pathname) != 0 || (p = config_get(config, "", "background")) == NULL) { object_delete(pathname); config_delete(config); return FALSE; } #ifdef DEBUG fprintf(stderr, "DEBUG: %s() background=\"%s\"\n", __func__, p); #endif /* FIXME may be resized (xrandr...) */ if((desktop->background = gdk_pixbuf_new_from_file_at_scale(p, desktop->width, desktop->height, FALSE, &error)) == NULL) { desktop_error(desktop, error->message, 0); object_delete(pathname); config_delete(config); return FALSE; } gdk_draw_pixbuf(desktop->root, NULL, desktop->background, 0, 0, 0, 0, -1, -1, GDK_RGB_DITHER_NORMAL, 0, 0); gdk_window_set_events(desktop->root, gdk_window_get_events( desktop->root) | GDK_BUTTON_PRESS_MASK | GDK_EXPOSURE_MASK); object_delete(pathname); config_delete(config); return FALSE; } static GdkFilterReturn _event_button_press(XButtonEvent * xbev, Desktop * desktop); static GdkFilterReturn _event_expose(XExposeEvent * xevent, Desktop * desktop); static void _on_popup_new_folder(GtkWidget * widget, gpointer data); static void _on_popup_new_text_file(GtkWidget * widget, gpointer data); static void _on_popup_paste(GtkWidget * widget, gpointer data); static void _on_popup_preferences(GtkWidget * widget, gpointer data); static GdkFilterReturn _new_on_root_event(GdkXEvent * xevent, GdkEvent * event, gpointer data) { Desktop * desktop = data; XEvent * xev = xevent; if(xev->type == ButtonPress) return _event_button_press(xevent, desktop); else if(xev->type == Expose) return _event_expose(xevent, desktop); #ifdef DEBUG fprintf(stderr, "DEBUG: %s() %d\n", __func__, xev->type); #endif return GDK_FILTER_CONTINUE; } static GdkFilterReturn _event_button_press(XButtonEvent * xbev, Desktop * desktop) { GtkWidget * menuitem; GtkWidget * submenu; GtkWidget * image; if(xbev->button != 3 || desktop->menu != NULL) { if(desktop->menu != NULL) { gtk_widget_destroy(desktop->menu); desktop->menu = NULL; } return GDK_FILTER_CONTINUE; } desktop->menu = gtk_menu_new(); menuitem = gtk_image_menu_item_new_from_stock(GTK_STOCK_NEW, NULL); submenu = gtk_menu_new(); gtk_menu_item_set_submenu(GTK_MENU_ITEM(menuitem), submenu); gtk_menu_shell_append(GTK_MENU_SHELL(desktop->menu), menuitem); /* submenu for new documents */ menuitem = gtk_image_menu_item_new_with_label("Folder"); image = gtk_image_new_from_icon_name("folder-new", GTK_ICON_SIZE_MENU); gtk_image_menu_item_set_image(GTK_IMAGE_MENU_ITEM(menuitem), image); g_signal_connect(G_OBJECT(menuitem), "activate", G_CALLBACK( _on_popup_new_folder), desktop); gtk_menu_shell_append(GTK_MENU_SHELL(submenu), menuitem); menuitem = gtk_separator_menu_item_new(); gtk_menu_shell_append(GTK_MENU_SHELL(submenu), menuitem); menuitem = gtk_image_menu_item_new_with_label("Text file"); image = gtk_image_new_from_icon_name("stock_new-text", GTK_ICON_SIZE_MENU); gtk_image_menu_item_set_image(GTK_IMAGE_MENU_ITEM(menuitem), image); g_signal_connect(G_OBJECT(menuitem), "activate", G_CALLBACK( _on_popup_new_text_file), desktop); gtk_menu_shell_append(GTK_MENU_SHELL(submenu), menuitem); /* edition */ menuitem = gtk_separator_menu_item_new(); gtk_menu_shell_append(GTK_MENU_SHELL(desktop->menu), menuitem); menuitem = gtk_image_menu_item_new_from_stock(GTK_STOCK_PASTE, NULL); g_signal_connect(G_OBJECT(menuitem), "activate", G_CALLBACK( _on_popup_paste), desktop); gtk_menu_shell_append(GTK_MENU_SHELL(desktop->menu), menuitem); /* preferences */ menuitem = gtk_separator_menu_item_new(); gtk_menu_shell_append(GTK_MENU_SHELL(desktop->menu), menuitem); menuitem = gtk_image_menu_item_new_from_stock(GTK_STOCK_PREFERENCES, NULL); g_signal_connect(G_OBJECT(menuitem), "activate", G_CALLBACK( _on_popup_preferences), desktop); gtk_menu_shell_append(GTK_MENU_SHELL(desktop->menu), menuitem); gtk_widget_show_all(desktop->menu); gtk_menu_popup(GTK_MENU(desktop->menu), NULL, NULL, NULL, NULL, 3, xbev->time); return GDK_FILTER_CONTINUE; } static GdkFilterReturn _event_expose(XExposeEvent * xevent, Desktop * desktop) { #ifdef DEBUG fprintf(stderr, "DEBUG: %s() %d %d, %d %d\n", __func__, xevent->x, xevent->y, xevent->width, xevent->height); #endif gdk_draw_pixbuf(desktop->root, NULL, desktop->background, xevent->x, xevent->y, xevent->x, xevent->y, xevent->width, xevent->height, GDK_RGB_DITHER_NORMAL, 0, 0); return GDK_FILTER_CONTINUE; } static void _on_popup_new_folder(GtkWidget * widget, gpointer data) { static char const newfolder[] = "New folder"; Desktop * desktop = data; char * path; gtk_widget_destroy(desktop->menu); desktop->menu = NULL; if((path = malloc(strlen(desktop->path) + sizeof(newfolder) + 1)) == NULL) { desktop_error(desktop, "malloc", 0); return; } sprintf(path, "%s/%s", desktop->path, newfolder); if(mkdir(path, 0777) != 0) desktop_error(desktop, path, 0); free(path); } static void _on_popup_new_text_file(GtkWidget * widget, gpointer data) { static char const newtext[] = "New text file.txt"; Desktop * desktop = data; char * path; int fd; gtk_widget_destroy(desktop->menu); desktop->menu = NULL; if((path = malloc(strlen(desktop->path) + sizeof(newtext) + 1)) == NULL) { desktop_error(desktop, "malloc", 0); return; } sprintf(path, "%s/%s", desktop->path, newtext); if((fd = creat(path, 0666)) < 0) desktop_error(desktop, path, 0); else close(fd); free(path); } static void _on_popup_paste(GtkWidget * widget, gpointer data) { Desktop * desktop = data; /* FIXME implement */ gtk_widget_destroy(desktop->menu); desktop->menu = NULL; } static void _on_popup_preferences(GtkWidget * widget, gpointer data) { Desktop * desktop = data; /* FIXME implement */ gtk_widget_destroy(desktop->menu); desktop->menu = NULL; } /* desktop_delete */ void desktop_delete(Desktop * desktop) { size_t i; for(i = 0; i < desktop->icon_cnt; i++) desktopicon_delete(desktop->icon[i]); free(desktop->icon); if(desktop->mime != NULL) mime_delete(desktop->mime); free(desktop->path); free(desktop); } /* useful */ /* desktop_error */ int desktop_error(Desktop * desktop, char const * message, int ret) { return _desktop_error(desktop, message, strerror(errno), ret); } static int _error_text(char const * message, int ret) { fputs("desktop: ", stderr); perror(message); return ret; } /* desktop_refresh */ static void _refresh_current(Desktop * desktop); static int _current_loop(Desktop * desktop); static gboolean _current_idle(gpointer data); static gboolean _current_done(Desktop * desktop); static int _loop_lookup(Desktop * desktop, char const * name); static gboolean _done_timeout(gpointer data); void desktop_refresh(Desktop * desktop) { int fd; struct stat st; #ifdef __sun__ if((fd = open(desktop->path, O_RDONLY)) < 0 || fstat(fd, &st) != 0 || (desktop->refresh_dir = fdopendir(fd)) == NULL) { desktop_error(desktop, desktop->path, 0); if(fd >= 0) close(fd); return; } #else if((desktop->refresh_dir = opendir(desktop->path)) == NULL) { desktop_error(desktop, desktop->path, 0); return; } fd = dirfd(desktop->refresh_dir); if(fstat(fd, &st) != 0) { desktop_error(desktop, desktop->path, 0); closedir(desktop->refresh_dir); return; } #endif desktop->refresh_mti = st.st_mtime; _refresh_current(desktop); } static void _refresh_current(Desktop * desktop) { unsigned int i; for(i = 0; i < 16 && _current_loop(desktop) == 0; i++); if(i == 16) g_idle_add(_current_idle, desktop); else _current_done(desktop); } static int _current_loop(Desktop * desktop) { struct dirent * de; char * p; DesktopIcon * desktopicon; while((de = readdir(desktop->refresh_dir)) != NULL) { if(de->d_name[0] == '.') if(de->d_name[1] == '\0' || (de->d_name[1] == '.' && de->d_name[2] == '\0')) continue; if(_loop_lookup(desktop, de->d_name) == 1) continue; break; } if(de == NULL) return 1; if((p = malloc(desktop->path_cnt + strlen(de->d_name) + 1)) == NULL) { desktop_error(NULL, "realloc", 0); return 1; } sprintf(p, "%s/%s", desktop->path, de->d_name); if((desktopicon = desktopicon_new(desktop, de->d_name, p)) != NULL) desktop_icon_add(desktop, desktopicon); free(p); return 0; } static int _loop_lookup(Desktop * desktop, char const * name) { size_t i; char const * p; for(i = 0; i < desktop->icon_cnt; i++) { if(desktop->icon[i]->updated == 1) /* XXX internal knowledge */ continue; if((p = desktopicon_get_path(desktop->icon[i])) == NULL || (p = strrchr(p, '/')) == NULL) continue; if(strcmp(name, ++p) != 0) continue; desktop->icon[i]->updated = 1; /* XXX here too */ return 1; } return 0; } static gboolean _current_idle(gpointer data) { Desktop * desktop = data; unsigned int i; for(i = 0; i < 16 && _current_loop(desktop) == 0; i++); if(i == 16) return TRUE; return _current_done(desktop); } static gboolean _current_done(Desktop * desktop) { size_t i = 1; while(i < desktop->icon_cnt) if(desktop->icon[i]->updated != 1) desktop_icon_remove(desktop, desktop->icon[i]); else desktop->icon[i++]->updated = 0; closedir(desktop->refresh_dir); g_timeout_add(1000, _done_timeout, desktop); return FALSE; } static gboolean _done_timeout(gpointer data) { Desktop * desktop = data; struct stat st; if(stat(desktop->path, &st) != 0) return desktop_error(NULL, desktop->path, FALSE); if(st.st_mtime == desktop->refresh_mti) return TRUE; desktop_refresh(desktop); return FALSE; } /* desktop_icon_add */ void desktop_icon_add(Desktop * desktop, DesktopIcon * icon) { DesktopIcon ** p; if((p = realloc(desktop->icon, sizeof(*p) * (desktop->icon_cnt + 1))) == NULL) { desktop_error(desktop, "Adding icon", 0); return; } desktop->icon = p; desktop->icon[desktop->icon_cnt++] = icon; desktop_icons_align(desktop); desktopicon_show(icon); } /* desktop_icon_remove */ void desktop_icon_remove(Desktop * desktop, DesktopIcon * icon) { size_t i; DesktopIcon ** p; for(i = 0; i < desktop->icon_cnt; i++) { if(desktop->icon[i] != icon) continue; desktopicon_delete(icon); for(desktop->icon_cnt--; i < desktop->icon_cnt; i++) desktop->icon[i] = desktop->icon[i + 1]; if((p = realloc(desktop->icon, sizeof(*p) * (desktop->icon_cnt))) != NULL) desktop->icon = p; desktop_icons_align(desktop); break; } } /* desktop_icons_align */ static int _align_compare(const void * a, const void * b); void desktop_icons_align(Desktop * desktop) { GdkScreen * screen; int height = INT_MAX; size_t i; int x = 0; int y = 0; qsort(desktop->icon, desktop->icon_cnt, sizeof(void*), _align_compare); if((screen = gdk_screen_get_default()) != NULL) height = gdk_screen_get_height(screen); for(i = 0; i < desktop->icon_cnt; i++) { if(y + DESKTOPICON_MAX_HEIGHT > height) { x += DESKTOPICON_MAX_WIDTH; y = 0; } desktopicon_move(desktop->icon[i], x, y); y += DESKTOPICON_MAX_HEIGHT; } } static int _align_compare(const void * a, const void * b) { DesktopIcon * icona = *(DesktopIcon**)a; DesktopIcon * iconb = *(DesktopIcon**)b; return strcmp(desktopicon_get_path(icona), desktopicon_get_path(iconb)); } /* desktop_select_all */ void desktop_select_all(Desktop * desktop) { size_t i; for(i = 0; i < desktop->icon_cnt; i++) desktopicon_set_selected(desktop->icon[i], TRUE); } /* desktop_select_above */ void desktop_select_above(Desktop * desktop, DesktopIcon * icon) /* FIXME icons may be wrapped */ { size_t i; for(i = 1; i < desktop->icon_cnt; i++) if(desktop->icon[i] == icon) { desktopicon_set_selected(desktop->icon[i], TRUE); return; } } /* desktop_select_under */ void desktop_select_under(Desktop * desktop, DesktopIcon * icon) /* FIXME icons may be wrapped */ { size_t i; for(i = 0; i < desktop->icon_cnt; i++) if(desktop->icon[i] == icon && i + 1 < desktop->icon_cnt) { desktopicon_set_selected(desktop->icon[i], TRUE); return; } } /* desktop_unselect_all */ void desktop_unselect_all(Desktop * desktop) { size_t i; for(i = 0; i < desktop->icon_cnt; i++) desktopicon_set_selected(desktop->icon[i], FALSE); } /* private */ /* functions */ /* desktop_error */ static int _error_text(char const * message, int ret); static int _desktop_error(Desktop * desktop, char const * message, char const * error, int ret) { GtkWidget * dialog; if(desktop == NULL) return _error_text(message, ret); dialog = gtk_message_dialog_new(NULL, 0, GTK_MESSAGE_ERROR, GTK_BUTTONS_CLOSE, "%s", "Error"); gtk_message_dialog_format_secondary_text(GTK_MESSAGE_DIALOG(dialog), "%s: %s", message, error); gtk_window_set_title(GTK_WINDOW(dialog), "Error"); if(ret < 0) { g_signal_connect(G_OBJECT(dialog), "response", G_CALLBACK( gtk_main_quit), NULL); ret = -ret; } else g_signal_connect(G_OBJECT(dialog), "response", G_CALLBACK( gtk_widget_destroy), NULL); gtk_widget_show(dialog); return ret; } /* desktop_serror */ static int _desktop_serror(Desktop * desktop, char const * message, int ret) { return _desktop_error(desktop, message, error_get(), ret); } /* usage */ static int _usage(void) { fputs("Usage: desktop\n", stderr); return 1; } /* main */ static void _main_sigchld(int signum); int main(int argc, char * argv[]) { int o; Desktop * desktop; struct sigaction sa; gtk_init(&argc, &argv); while((o = getopt(argc, argv, "")) != -1) switch(o) { default: return _usage(); } if(optind < argc) return _usage(); if((desktop = desktop_new()) == NULL) { gtk_main(); return 2; } sa.sa_handler = _main_sigchld; sigemptyset(&sa.sa_mask); sa.sa_flags = 0; if(sigaction(SIGCHLD, &sa, NULL) == -1) desktop_error(desktop, "signal handling error", 0); gtk_main(); desktop_delete(desktop); return 0; } static void _main_sigchld(int signum) { wait(NULL); }