X-Git-Url: http://git.tdb.fi/?p=pmount-gui.git;a=blobdiff_plain;f=main.c;h=81bc4bffd77899c9b3a80e6ee34f8e98c426c393;hp=5aa961130cd80890b732ea6be857b1a23547c8a1;hb=f11c283e0e045a9eafed90e83521d2205dea0a2c;hpb=0a8aff086f409621047d9dd62ffee7ae0a819c96 diff --git a/main.c b/main.c index 5aa9611..81bc4bf 100644 --- a/main.c +++ b/main.c @@ -11,6 +11,7 @@ #include #include #include +#include #include #include @@ -30,8 +31,22 @@ typedef struct sDevice time_t time; } Device; +typedef struct sGuiContext +{ + int manager; + int autohide; + Device *devices; + GtkWidget *window; + GtkWidget *list; + GtkWidget *button; + char *post_mount_command; + int inotify_fd; + int dev_wd; + GIOChannel *inotify_channel; + int refresh_pending; +} GuiContext; + int verbosity = 0; -char *post_mount_command = NULL; /** Parses a string of the form name=value and places the components in a Property @@ -759,12 +774,107 @@ int toggle_device(Device *device, char *out_buf, int out_size) return 0; } +/** +Refreshes both the internal devices array and the GUI list. +*/ +int refresh_devices(GuiContext *context, int umount) +{ + GtkListStore *store; + GtkTreeSelection *selection; + int n_listed; + time_t latest; + int i; + GtkTreeIter iter; + + store = GTK_LIST_STORE(gtk_tree_view_get_model(GTK_TREE_VIEW(context->list))); + gtk_list_store_clear(store); + + free_devices(context->devices); + + context->devices = get_devices(); + if(!context->devices) + return 0; + + selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(context->list)); + + /* Populate the list with devices in appropriate state. */ + n_listed = 0; + latest = 0; + for(i=0; context->devices[i].node; ++i) + { + Device *dev; + + dev = &context->devices[i]; + if(umount<0 || !dev->mount_point==!umount) + { + gtk_list_store_append(store, &iter); + gtk_list_store_set(store, &iter, + 0, dev->description, + 1, dev, + 2, !!dev->mount_point, + 3, dev->mount_point, + -1); + if(dev->time>latest) + { + /* Pre-select the device that appeared on the system most recently. */ + latest = dev->time; + gtk_tree_selection_select_iter(selection, &iter); + } + + ++n_listed; + } + } + + return n_listed; +} + +/** +Handles an automatic refresh of the device list in response to inotify events. +*/ +gboolean refresh_devices_idle(gpointer data) +{ + GuiContext *context = (GuiContext *)data; + int n_listed; + + n_listed = refresh_devices(context, -1); + context->refresh_pending = 0; + + if(context->autohide) + { + if(n_listed) + gtk_widget_show_all(context->window); + else + gtk_widget_hide(context->window); + } + + return FALSE; +} + +/** +Callback for selection in the device list changing. Updates the action button +label according to device status. +*/ +void selection_changed(GtkTreeSelection *selection, gpointer user_data) +{ + GuiContext *context = (GuiContext *)user_data; + GtkTreeIter iter; + GtkTreeModel *model; + Device *device; + + if(!gtk_tree_selection_get_selected(selection, &model, &iter)) + return; + + gtk_tree_model_get(model, &iter, 1, &device, -1); + gtk_button_set_label(GTK_BUTTON(context->button), (device->mount_point ? "Unmount" : "Mount")); +} + /** Callback for activating a row in the device list. Mounts or unmounts the device depending on operating mode. */ void row_activated(GtkTreeView *list, GtkTreePath *path, GtkTreeViewColumn *column, gpointer user_data) { + GuiContext *context = (GuiContext *)user_data; GtkTreeModel *model; GtkTreeIter iter; Device *device; @@ -786,23 +896,36 @@ void row_activated(GtkTreeView *list, GtkTreePath *path, GtkTreeViewColumn *colu /* Pmount terminated with nonzero status or a signal. Display an error to the user. */ dialog = gtk_message_dialog_new(NULL, 0, GTK_MESSAGE_ERROR, GTK_BUTTONS_OK, "%s", output); - g_signal_connect(dialog, "response", >k_main_quit, NULL); + if(context->manager) + g_signal_connect(dialog, "response", G_CALLBACK(>k_widget_destroy), dialog); + else + g_signal_connect(dialog, "response", G_CALLBACK(>k_main_quit), NULL); gtk_widget_show_all(dialog); return; } - gtk_main_quit(); + if(context->manager) + { + gtk_list_store_set(GTK_LIST_STORE(model), &iter, + 2, !!device->mount_point, + 3, device->mount_point, + -1); + + gtk_button_set_label(GTK_BUTTON(context->button), (device->mount_point ? "Unmount" : "Mount")); + } + else + gtk_main_quit(); - if(post_mount_command && device->mount_point) + if(context->post_mount_command && device->mount_point) { if(verbosity>=1) - printf("Running %s in %s\n", post_mount_command, device->mount_point); + printf("Running %s in %s\n", context->post_mount_command, device->mount_point); pid = fork(); if(pid==0) { chdir(device->mount_point); - execlp(post_mount_command, post_mount_command, NULL); + execlp(context->post_mount_command, context->post_mount_command, NULL); _exit(1); } } @@ -817,16 +940,18 @@ list to be activated. */ void button_clicked(GtkButton *button, gpointer user_data) { - GtkWidget *list = (GtkWidget *)user_data; + GuiContext *context = (GuiContext *)user_data; GtkTreeSelection *selection; GtkTreeIter iter; GtkTreeModel *model; GtkTreePath *path; + GtkTreeViewColumn *column; - selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(list)); + selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(context->list)); gtk_tree_selection_get_selected(selection, &model, &iter); path = gtk_tree_model_get_path(model, &iter); - gtk_tree_view_row_activated(GTK_TREE_VIEW(list), path, gtk_tree_view_get_column(GTK_TREE_VIEW(list), 0)); + column = gtk_tree_view_get_column(GTK_TREE_VIEW(context->list), 0); + gtk_tree_view_row_activated(GTK_TREE_VIEW(context->list), path, column); gtk_tree_path_free(path); (void)button; @@ -849,6 +974,32 @@ gboolean key_press(GtkWidget *widget, GdkEvent *event, gpointer user_data) return FALSE; } +/** +Callback for inotify events. +*/ +gboolean inotify_event_available(GIOChannel *source, GIOCondition condition, gpointer user_data) +{ + GuiContext *context = (GuiContext *)user_data; + int fd; + char eventbuf[sizeof(struct inotify_event)+NAME_MAX+1]; + int len; + + fd = g_io_channel_unix_get_fd(source); + len = read(fd, eventbuf, sizeof(eventbuf)); + if(len>=(int)sizeof(struct inotify_event)) + { + if(!context->refresh_pending) + { + g_timeout_add(500, &refresh_devices_idle, context); + context->refresh_pending = 1; + } + } + + (void)condition; + + return TRUE; +} + void show_help(void) { printf("pmount-gui\n" @@ -858,29 +1009,35 @@ void show_help(void) " -v Increase verbosity\n" " -u Unmount a device (default is mount)\n" " -r Run a command after mounting\n" + " -m Start a persistent mount manager\n" + " -M Like -m, but hide the window if there are no devices\n" " -h Display this help\n"); } int main(int argc, char **argv) { - GtkWidget *window; + GuiContext context; GtkWidget *box; GtkWidget *viewport; - GtkWidget *list; GtkListStore *store; GtkTreeSelection *selection; - GtkWidget *button; - GtkTreeIter iter; - Device *devices; - int i; - time_t latest; + GtkCellRenderer *mounted_toggle; int opt; int umount = 0; int n_listed; + context.manager = 0; + context.autohide = 0; + context.devices = NULL; + context.post_mount_command = NULL; + context.inotify_fd = -1; + context.dev_wd = -1; + context.inotify_channel = NULL; + context.refresh_pending = 0; + gtk_init(&argc, &argv); - while((opt = getopt(argc, argv, "vur:h"))!=-1) switch(opt) + while((opt = getopt(argc, argv, "vur:mMh"))!=-1) switch(opt) { case 'v': ++verbosity; @@ -889,66 +1046,86 @@ int main(int argc, char **argv) umount = 1; break; case 'r': - post_mount_command = optarg; + context.post_mount_command = optarg; + break; + case 'm': + context.manager = 1; + context.autohide = 0; + break; + case 'M': + context.manager = 1; + context.autohide = 1; break; case 'h': show_help(); return 0; } - window = gtk_window_new(GTK_WINDOW_TOPLEVEL); - gtk_container_set_border_width(GTK_CONTAINER(window), 5); - g_signal_connect(window, "destroy", G_CALLBACK(>k_main_quit), NULL); - g_signal_connect(window, "key-press-event", G_CALLBACK(&key_press), NULL); + context.window = gtk_window_new(GTK_WINDOW_TOPLEVEL); + gtk_container_set_border_width(GTK_CONTAINER(context.window), 5); + g_signal_connect(context.window, "destroy", G_CALLBACK(>k_main_quit), NULL); + g_signal_connect(context.window, "key-press-event", G_CALLBACK(&key_press), NULL); box = gtk_vbox_new(FALSE, 5); - gtk_container_add(GTK_CONTAINER(window), box); + gtk_container_add(GTK_CONTAINER(context.window), box); viewport = gtk_viewport_new(NULL, NULL); gtk_viewport_set_shadow_type(GTK_VIEWPORT(viewport), GTK_SHADOW_IN); gtk_box_pack_start(GTK_BOX(box), viewport, TRUE, TRUE, 0); - list = gtk_tree_view_new(); - gtk_container_add(GTK_CONTAINER(viewport), list); - g_signal_connect(list, "row-activated", G_CALLBACK(&row_activated), NULL); + context.list = gtk_tree_view_new(); + gtk_container_add(GTK_CONTAINER(viewport), context.list); + g_signal_connect(context.list, "row-activated", G_CALLBACK(&row_activated), &context); - store = gtk_list_store_new(2, G_TYPE_STRING, G_TYPE_POINTER); - gtk_tree_view_set_model(GTK_TREE_VIEW(list), GTK_TREE_MODEL(store)); - gtk_tree_view_insert_column_with_attributes(GTK_TREE_VIEW(list), + store = gtk_list_store_new(4, G_TYPE_STRING, G_TYPE_POINTER, G_TYPE_BOOLEAN, G_TYPE_STRING); + gtk_tree_view_set_model(GTK_TREE_VIEW(context.list), GTK_TREE_MODEL(store)); + gtk_tree_view_insert_column_with_attributes(GTK_TREE_VIEW(context.list), -1, "Device", gtk_cell_renderer_text_new(), "text", 0, NULL); - selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(list)); + if(context.manager) + { + GtkTreeViewColumn *mounted_column; + GtkCellRenderer *mount_point_renderer; - button = gtk_button_new_with_label(umount ? "Unmount" : "Mount"); - g_signal_connect(button, "clicked", G_CALLBACK(&button_clicked), list); - gtk_box_pack_start(GTK_BOX(box), button, FALSE, TRUE, 0); + mounted_column = gtk_tree_view_column_new(); + gtk_tree_view_column_set_title(mounted_column, "Mounted"); - devices = get_devices(); - n_listed = 0; - if(devices) - { - /* Populate the list with devices in appropriate state. */ - latest = 0; - for(i=0; devices[i].node; ++i) - if(!devices[i].mount_point==!umount) - { - gtk_list_store_append(store, &iter); - gtk_list_store_set(store, &iter, 0, devices[i].description, 1, &devices[i], -1); - if(devices[i].time>latest) - { - /* Pre-select the device that appeared on the system most recently. */ - latest = devices[i].time; - gtk_tree_selection_select_iter(selection, &iter); - } + mounted_toggle = gtk_cell_renderer_toggle_new(); + gtk_tree_view_column_pack_start(mounted_column, mounted_toggle, FALSE); + gtk_tree_view_column_add_attribute(mounted_column, mounted_toggle, "active", 2); - ++n_listed; - } + mount_point_renderer = gtk_cell_renderer_text_new(); + gtk_tree_view_column_pack_start(mounted_column, mount_point_renderer, TRUE); + gtk_tree_view_column_add_attribute(mounted_column, mount_point_renderer, "text", 3); + + gtk_tree_view_insert_column(GTK_TREE_VIEW(context.list), mounted_column, -1); + context.inotify_fd = inotify_init(); + if(context.inotify_fd>=0) + { + context.dev_wd = inotify_add_watch(context.inotify_fd, "/dev/disk/by-id", IN_CREATE|IN_DELETE); + + context.inotify_channel = g_io_channel_unix_new(context.inotify_fd); + g_io_add_watch(context.inotify_channel, G_IO_IN, &inotify_event_available, &context); + } + else + printf("Warning: Unable to initialize inotify\n"); + + umount = -1; } - if(n_listed) - gtk_widget_show_all(window); - else + selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(context.list)); + g_signal_connect(selection, "changed", G_CALLBACK(&selection_changed), &context); + + context.button = gtk_button_new_with_label(umount ? "Unmount" : "Mount"); + g_signal_connect(context.button, "clicked", G_CALLBACK(&button_clicked), &context); + gtk_box_pack_start(GTK_BOX(box), context.button, FALSE, TRUE, 0); + + n_listed = refresh_devices(&context, umount); + + if(n_listed || (context.manager && !context.autohide)) + gtk_widget_show_all(context.window); + else if(!context.manager) { GtkWidget *dialog; @@ -961,7 +1138,9 @@ int main(int argc, char **argv) gtk_main(); - free_devices(devices); + free_devices(context.devices); + if(context.inotify_fd>=0) + close(context.inotify_fd); return 0; }