/* nautilus-pathbar.c * Copyright (C) 2004 Red Hat, Inc., Jonathan Blandford * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library 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 * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library; if not, write to the * Free Software Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "nautilus-pathbar.h" enum { PATH_CLICKED, LAST_SIGNAL }; typedef enum { NORMAL_BUTTON, ROOT_BUTTON, HOME_BUTTON, DESKTOP_BUTTON, VOLUME_BUTTON } ButtonType; #define BUTTON_DATA(x) ((ButtonData *)(x)) #define SCROLL_TIMEOUT 150 #define INITIAL_SCROLL_TIMEOUT 300 static guint path_bar_signals [LAST_SIGNAL] = { 0 }; static gboolean desktop_is_home; #define NAUTILUS_PATH_BAR_ICON_SIZE 16 #define DEFAULT_ICON "gnome-fs-directory" #define DEFAULT_DESKTOP_ICON "gnome-fs-desktop" #define DEFAULT_HOME_ICON "gnome-fs-home" #define DEFAULT_FILESYSTEM_ICON "gnome-dev-harddisk" typedef struct _ButtonData ButtonData; struct _ButtonData { GtkWidget *button; ButtonType type; char *dir_name; char *path; /* custom icon */ char *custom_icon_name; /* flag to indicate its the base folder in the URI */ gboolean is_base_dir; GtkWidget *image; GtkWidget *label; guint ignore_changes : 1; guint file_is_hidden : 1; }; /* This macro is used to check if a button can be used as a fake root. * All buttons in front of a fake root are automatically hidden when in a * directory below a fake root and replaced with the "<" arrow button. */ #define BUTTON_IS_FAKE_ROOT(button) ((button)->type == HOME_BUTTON || (button)->type == VOLUME_BUTTON) G_DEFINE_TYPE (NautilusPathBar, nautilus_path_bar, GTK_TYPE_CONTAINER); static void nautilus_path_bar_finalize (GObject *object); static void nautilus_path_bar_dispose (GObject *object); static void nautilus_path_bar_size_request (GtkWidget *widget, GtkRequisition *requisition); static void nautilus_path_bar_unmap (GtkWidget *widget); static void nautilus_path_bar_size_allocate (GtkWidget *widget, GtkAllocation *allocation); static void nautilus_path_bar_add (GtkContainer *container, GtkWidget *widget); static void nautilus_path_bar_remove (GtkContainer *container, GtkWidget *widget); static void nautilus_path_bar_forall (GtkContainer *container, gboolean include_internals, GtkCallback callback, gpointer callback_data); static void nautilus_path_bar_scroll_up (GtkWidget *button, NautilusPathBar *path_bar); static void nautilus_path_bar_scroll_down (GtkWidget *button, NautilusPathBar *path_bar); static void nautilus_path_bar_stop_scrolling (NautilusPathBar *path_bar); static gboolean nautilus_path_bar_slider_button_press (GtkWidget *widget, GdkEventButton *event, NautilusPathBar *path_bar); static gboolean nautilus_path_bar_slider_button_release (GtkWidget *widget, GdkEventButton *event, NautilusPathBar *path_bar); static void nautilus_path_bar_grab_notify (GtkWidget *widget, gboolean was_grabbed); static void nautilus_path_bar_state_changed (GtkWidget *widget, GtkStateType previous_state); static void nautilus_path_bar_style_set (GtkWidget *widget, GtkStyle *previous_style); static void nautilus_path_bar_screen_changed (GtkWidget *widget, GdkScreen *previous_screen); static void nautilus_path_bar_check_icon_theme (NautilusPathBar *path_bar); static void nautilus_path_bar_update_button_appearance (NautilusPathBar *path_bar, ButtonData *button_data, gboolean current_dir); static gboolean nautilus_path_bar_update_path (NautilusPathBar *path_bar, const char *file_path); static GtkWidget * get_slider_button (NautilusPathBar *path_bar, GtkArrowType arrow_type) { GtkWidget *button; gtk_widget_push_composite_child (); button = gtk_button_new (); gtk_container_add (GTK_CONTAINER (button), gtk_arrow_new (arrow_type, GTK_SHADOW_OUT)); gtk_container_add (GTK_CONTAINER (path_bar), button); gtk_widget_show_all (button); gtk_widget_pop_composite_child (); return button; } static void update_button_types (NautilusPathBar *path_bar) { GList *list; char *path = NULL; for (list = path_bar->button_list; list; list = list->next) { ButtonData *button_data; button_data = BUTTON_DATA (list->data); if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (button_data->button))) { path = button_data->path; break; } } if (path != NULL) { nautilus_path_bar_update_path (path_bar, path); } } static void desktop_location_changed_callback (gpointer user_data) { NautilusPathBar *path_bar; path_bar = NAUTILUS_PATH_BAR (user_data); g_free (path_bar->desktop_path); g_free (path_bar->home_path); path_bar->desktop_path = nautilus_get_desktop_directory_uri (); path_bar->home_path = gnome_vfs_get_uri_from_local_path (g_get_home_dir ()); desktop_is_home = (strcmp (path_bar->home_path, path_bar->desktop_path) == 0); if (path_bar->home_icon) { g_object_unref (path_bar->home_icon); path_bar->home_icon = NULL; } update_button_types (path_bar); } static void nautilus_path_bar_init (NautilusPathBar *path_bar) { GTK_WIDGET_SET_FLAGS (path_bar, GTK_NO_WINDOW); gtk_widget_set_redraw_on_allocate (GTK_WIDGET (path_bar), FALSE); path_bar->spacing = 3; path_bar->up_slider_button = get_slider_button (path_bar, GTK_ARROW_LEFT); path_bar->down_slider_button = get_slider_button (path_bar, GTK_ARROW_RIGHT); path_bar->icon_size = NAUTILUS_PATH_BAR_ICON_SIZE; path_bar->desktop_path = nautilus_get_desktop_directory_uri (); path_bar->home_path = gnome_vfs_get_uri_from_local_path (g_get_home_dir ()); path_bar->root_path = g_strdup ("file:///"); desktop_is_home = (strcmp (path_bar->home_path, path_bar->desktop_path) == 0); eel_preferences_add_callback_while_alive (NAUTILUS_PREFERENCES_DESKTOP_IS_HOME_DIR, desktop_location_changed_callback, path_bar, G_OBJECT (path_bar)); g_signal_connect (path_bar->up_slider_button, "clicked", G_CALLBACK (nautilus_path_bar_scroll_up), path_bar); g_signal_connect (path_bar->down_slider_button, "clicked", G_CALLBACK (nautilus_path_bar_scroll_down), path_bar); g_signal_connect (path_bar->up_slider_button, "button_press_event", G_CALLBACK (nautilus_path_bar_slider_button_press), path_bar); g_signal_connect (path_bar->up_slider_button, "button_release_event", G_CALLBACK (nautilus_path_bar_slider_button_release), path_bar); g_signal_connect (path_bar->down_slider_button, "button_press_event", G_CALLBACK (nautilus_path_bar_slider_button_press), path_bar); g_signal_connect (path_bar->down_slider_button, "button_release_event", G_CALLBACK (nautilus_path_bar_slider_button_release), path_bar); } static void nautilus_path_bar_class_init (NautilusPathBarClass *path_bar_class) { GObjectClass *gobject_class; GtkObjectClass *object_class; GtkWidgetClass *widget_class; GtkContainerClass *container_class; gobject_class = (GObjectClass *) path_bar_class; object_class = (GtkObjectClass *) path_bar_class; widget_class = (GtkWidgetClass *) path_bar_class; container_class = (GtkContainerClass *) path_bar_class; gobject_class->finalize = nautilus_path_bar_finalize; gobject_class->dispose = nautilus_path_bar_dispose; widget_class->size_request = nautilus_path_bar_size_request; widget_class->unmap = nautilus_path_bar_unmap; widget_class->size_allocate = nautilus_path_bar_size_allocate; widget_class->style_set = nautilus_path_bar_style_set; widget_class->screen_changed = nautilus_path_bar_screen_changed; widget_class->grab_notify = nautilus_path_bar_grab_notify; widget_class->state_changed = nautilus_path_bar_state_changed; container_class->add = nautilus_path_bar_add; container_class->forall = nautilus_path_bar_forall; container_class->remove = nautilus_path_bar_remove; path_bar_signals [PATH_CLICKED] = g_signal_new ("path-clicked", G_OBJECT_CLASS_TYPE (object_class), G_SIGNAL_RUN_FIRST, G_STRUCT_OFFSET (NautilusPathBarClass, path_clicked), NULL, NULL, g_cclosure_marshal_VOID__STRING, G_TYPE_NONE, 1, G_TYPE_STRING); } static void nautilus_path_bar_finalize (GObject *object) { NautilusPathBar *path_bar; path_bar = NAUTILUS_PATH_BAR (object); nautilus_path_bar_stop_scrolling (path_bar); g_list_free (path_bar->button_list); if (path_bar->root_path) { g_free (path_bar->root_path); path_bar->root_path = NULL; } if (path_bar->home_path) { g_free (path_bar->home_path); path_bar->home_path = NULL; } if (path_bar->desktop_path) { g_free (path_bar->desktop_path); path_bar->desktop_path = NULL; } if (path_bar->root_icon) { g_object_unref (path_bar->root_icon); path_bar->root_icon = NULL; } if (path_bar->home_icon) { g_object_unref (path_bar->home_icon); path_bar->home_icon = NULL; } if (path_bar->desktop_icon) { g_object_unref (path_bar->desktop_icon); path_bar->desktop_icon = NULL; } G_OBJECT_CLASS (nautilus_path_bar_parent_class)->finalize (object); } /* Removes the settings signal handler. It's safe to call multiple times */ static void remove_settings_signal (NautilusPathBar *path_bar, GdkScreen *screen) { if (path_bar->settings_signal_id) { GtkSettings *settings; settings = gtk_settings_get_for_screen (screen); g_signal_handler_disconnect (settings, path_bar->settings_signal_id); path_bar->settings_signal_id = 0; } } static void nautilus_path_bar_dispose (GObject *object) { remove_settings_signal (NAUTILUS_PATH_BAR (object), gtk_widget_get_screen (GTK_WIDGET (object))); G_OBJECT_CLASS (nautilus_path_bar_parent_class)->dispose (object); } /* Size requisition: * * Ideally, our size is determined by another widget, and we are just filling * available space. */ static void nautilus_path_bar_size_request (GtkWidget *widget, GtkRequisition *requisition) { ButtonData *button_data; NautilusPathBar *path_bar; GtkRequisition child_requisition; GList *list; path_bar = NAUTILUS_PATH_BAR (widget); requisition->width = 0; requisition->height = 0; for (list = path_bar->button_list; list; list = list->next) { button_data = BUTTON_DATA (list->data); gtk_widget_size_request (button_data->button, &child_requisition); requisition->width = MAX (child_requisition.width, requisition->width); requisition->height = MAX (child_requisition.height, requisition->height); } /* Add space for slider, if we have more than one path */ /* Theoretically, the slider could be bigger than the other button. But we're */ /* not going to worry about that now.*/ path_bar->slider_width = MIN(requisition->height * 2 / 3 + 5, requisition->height); if (path_bar->button_list && path_bar->button_list->next != NULL) { requisition->width += (path_bar->spacing + path_bar->slider_width) * 2; } gtk_widget_size_request (path_bar->up_slider_button, &child_requisition); gtk_widget_size_request (path_bar->down_slider_button, &child_requisition); requisition->width += GTK_CONTAINER (widget)->border_width * 2; requisition->height += GTK_CONTAINER (widget)->border_width * 2; widget->requisition = *requisition; } static void nautilus_path_bar_update_slider_buttons (NautilusPathBar *path_bar) { if (path_bar->button_list) { GtkWidget *button; button = BUTTON_DATA (path_bar->button_list->data)->button; if (gtk_widget_get_child_visible (button)) { gtk_widget_set_sensitive (path_bar->down_slider_button, FALSE); } else { gtk_widget_set_sensitive (path_bar->down_slider_button, TRUE); } button = BUTTON_DATA (g_list_last (path_bar->button_list)->data)->button; if (gtk_widget_get_child_visible (button)) { gtk_widget_set_sensitive (path_bar->up_slider_button, FALSE); } else { gtk_widget_set_sensitive (path_bar->up_slider_button, TRUE); } } } static void nautilus_path_bar_unmap (GtkWidget *widget) { nautilus_path_bar_stop_scrolling (NAUTILUS_PATH_BAR (widget)); GTK_WIDGET_CLASS (nautilus_path_bar_parent_class)->unmap (widget); } /* This is a tad complicated */ static void nautilus_path_bar_size_allocate (GtkWidget *widget, GtkAllocation *allocation) { GtkWidget *child; NautilusPathBar *path_bar; GtkTextDirection direction; GtkAllocation child_allocation; GList *list, *first_button; gint width; gint allocation_width; gint border_width; gboolean need_sliders; gint up_slider_offset; gint down_slider_offset; need_sliders = FALSE; up_slider_offset = 0; down_slider_offset = 0; path_bar = NAUTILUS_PATH_BAR (widget); widget->allocation = *allocation; /* No path is set so we don't have to allocate anything. */ if (path_bar->button_list == NULL) { return; } direction = gtk_widget_get_direction (widget); border_width = (gint) GTK_CONTAINER (path_bar)->border_width; allocation_width = allocation->width - 2 * border_width; /* First, we check to see if we need the scrollbars. */ if (path_bar->fake_root) { width = path_bar->spacing + path_bar->slider_width; } else { width = 0; } width += BUTTON_DATA (path_bar->button_list->data)->button->requisition.width; for (list = path_bar->button_list->next; list; list = list->next) { child = BUTTON_DATA (list->data)->button; width += child->requisition.width + path_bar->spacing; if (list == path_bar->fake_root) { break; } } if (width <= allocation_width) { if (path_bar->fake_root) { first_button = path_bar->fake_root; } else { first_button = g_list_last (path_bar->button_list); } } else { gboolean reached_end; gint slider_space; reached_end = FALSE; slider_space = 2 * (path_bar->spacing + path_bar->slider_width); if (path_bar->first_scrolled_button) { first_button = path_bar->first_scrolled_button; } else { first_button = path_bar->button_list; } need_sliders = TRUE; /* To see how much space we have, and how many buttons we can display. * We start at the first button, count forward until hit the new * button, then count backwards. */ /* Count down the path chain towards the end. */ width = BUTTON_DATA (first_button->data)->button->requisition.width; list = first_button->prev; while (list && !reached_end) { child = BUTTON_DATA (list->data)->button; if (width + child->requisition.width + path_bar->spacing + slider_space > allocation_width) { reached_end = TRUE; } else { if (list == path_bar->fake_root) { break; } else { width += child->requisition.width + path_bar->spacing; } } list = list->prev; } /* Finally, we walk up, seeing how many of the previous buttons we can add*/ while (first_button->next && ! reached_end) { child = BUTTON_DATA (first_button->next->data)->button; if (width + child->requisition.width + path_bar->spacing + slider_space > allocation_width) { reached_end = TRUE; } else { width += child->requisition.width + path_bar->spacing; if (first_button == path_bar->fake_root) { break; } first_button = first_button->next; } } } /* Now, we allocate space to the buttons */ child_allocation.y = allocation->y + border_width; child_allocation.height = MAX (1, (gint) allocation->height - border_width * 2); if (direction == GTK_TEXT_DIR_RTL) { child_allocation.x = allocation->x + allocation->width - border_width; if (need_sliders || path_bar->fake_root) { child_allocation.x -= (path_bar->spacing + path_bar->slider_width); up_slider_offset = allocation->width - border_width - path_bar->slider_width; } } else { child_allocation.x = allocation->x + border_width; if (need_sliders || path_bar->fake_root) { up_slider_offset = border_width; child_allocation.x += (path_bar->spacing + path_bar->slider_width); } } for (list = first_button; list; list = list->prev) { child = BUTTON_DATA (list->data)->button; child_allocation.width = child->requisition.width; if (direction == GTK_TEXT_DIR_RTL) { child_allocation.x -= child_allocation.width; } /* Check to see if we've don't have any more space to allocate buttons */ if (need_sliders && direction == GTK_TEXT_DIR_RTL) { if (child_allocation.x - path_bar->spacing - path_bar->slider_width < widget->allocation.x + border_width) { break; } } else { if (need_sliders && direction == GTK_TEXT_DIR_LTR) { if (child_allocation.x + child_allocation.width + path_bar->spacing + path_bar->slider_width > widget->allocation.x + border_width + allocation_width) { break; } } } gtk_widget_set_child_visible (BUTTON_DATA (list->data)->button, TRUE); gtk_widget_size_allocate (child, &child_allocation); if (direction == GTK_TEXT_DIR_RTL) { child_allocation.x -= path_bar->spacing; down_slider_offset = child_allocation.x - widget->allocation.x - path_bar->slider_width; down_slider_offset = border_width; } else { down_slider_offset = child_allocation.x - widget->allocation.x; down_slider_offset = allocation->width - border_width - path_bar->slider_width; child_allocation.x += child_allocation.width + path_bar->spacing; } } /* Now we go hide all the widgets that don't fit */ while (list) { gtk_widget_set_child_visible (BUTTON_DATA (list->data)->button, FALSE); list = list->prev; } for (list = first_button->next; list; list = list->next) { gtk_widget_set_child_visible (BUTTON_DATA (list->data)->button, FALSE); } if (need_sliders || path_bar->fake_root) { child_allocation.width = path_bar->slider_width; child_allocation.x = up_slider_offset + allocation->x; gtk_widget_size_allocate (path_bar->up_slider_button, &child_allocation); gtk_widget_set_child_visible (path_bar->up_slider_button, TRUE); gtk_widget_show_all (path_bar->up_slider_button); } else { gtk_widget_set_child_visible (path_bar->up_slider_button, FALSE); } if (need_sliders) { child_allocation.width = path_bar->slider_width; child_allocation.x = down_slider_offset + allocation->x; gtk_widget_size_allocate (path_bar->down_slider_button, &child_allocation); gtk_widget_set_child_visible (path_bar->down_slider_button, TRUE); gtk_widget_show_all (path_bar->down_slider_button); nautilus_path_bar_update_slider_buttons (path_bar); } else { gtk_widget_set_child_visible (path_bar->down_slider_button, FALSE); } } static void nautilus_path_bar_style_set (GtkWidget *widget, GtkStyle *previous_style) { if (GTK_WIDGET_CLASS (nautilus_path_bar_parent_class)->style_set) { GTK_WIDGET_CLASS (nautilus_path_bar_parent_class)->style_set (widget, previous_style); } nautilus_path_bar_check_icon_theme (NAUTILUS_PATH_BAR (widget)); } static void nautilus_path_bar_screen_changed (GtkWidget *widget, GdkScreen *previous_screen) { if (GTK_WIDGET_CLASS (nautilus_path_bar_parent_class)->screen_changed) { GTK_WIDGET_CLASS (nautilus_path_bar_parent_class)->screen_changed (widget, previous_screen); } /* We might nave a new settings, so we remove the old one */ if (previous_screen) { remove_settings_signal (NAUTILUS_PATH_BAR (widget), previous_screen); } nautilus_path_bar_check_icon_theme (NAUTILUS_PATH_BAR (widget)); } static void nautilus_path_bar_add (GtkContainer *container, GtkWidget *widget) { gtk_widget_set_parent (widget, GTK_WIDGET (container)); } static void nautilus_path_bar_remove_1 (GtkContainer *container, GtkWidget *widget) { gboolean was_visible = GTK_WIDGET_VISIBLE (widget); gtk_widget_unparent (widget); if (was_visible) { gtk_widget_queue_resize (GTK_WIDGET (container)); } } static void nautilus_path_bar_remove (GtkContainer *container, GtkWidget *widget) { NautilusPathBar *path_bar; GList *children; path_bar = NAUTILUS_PATH_BAR (container); if (widget == path_bar->up_slider_button) { nautilus_path_bar_remove_1 (container, widget); path_bar->up_slider_button = NULL; return; } if (widget == path_bar->down_slider_button) { nautilus_path_bar_remove_1 (container, widget); path_bar->down_slider_button = NULL; return; } children = path_bar->button_list; while (children) { if (widget == BUTTON_DATA (children->data)->button) { nautilus_path_bar_remove_1 (container, widget); path_bar->button_list = g_list_remove_link (path_bar->button_list, children); g_list_free (children); return; } children = children->next; } } static void nautilus_path_bar_forall (GtkContainer *container, gboolean include_internals, GtkCallback callback, gpointer callback_data) { NautilusPathBar *path_bar; GList *children; g_return_if_fail (callback != NULL); path_bar = NAUTILUS_PATH_BAR (container); children = path_bar->button_list; while (children) { GtkWidget *child; child = BUTTON_DATA (children->data)->button; children = children->next; (* callback) (child, callback_data); } if (path_bar->up_slider_button) { (* callback) (path_bar->up_slider_button, callback_data); } if (path_bar->down_slider_button) { (* callback) (path_bar->down_slider_button, callback_data); } } static void nautilus_path_bar_scroll_down (GtkWidget *button, NautilusPathBar *path_bar) { GList *list; GList *down_button; GList *up_button; gint space_available; gint space_needed; gint border_width; GtkTextDirection direction; down_button = NULL; up_button = NULL; if (path_bar->ignore_click) { path_bar->ignore_click = FALSE; return; } gtk_widget_queue_resize (GTK_WIDGET (path_bar)); border_width = GTK_CONTAINER (path_bar)->border_width; direction = gtk_widget_get_direction (GTK_WIDGET (path_bar)); /* We find the button at the 'down' end that we have to make */ /* visible */ for (list = path_bar->button_list; list; list = list->next) { if (list->next && gtk_widget_get_child_visible (BUTTON_DATA (list->next->data)->button)) { down_button = list; break; } } /* Find the last visible button on the 'up' end */ for (list = g_list_last (path_bar->button_list); list; list = list->prev) { if (gtk_widget_get_child_visible (BUTTON_DATA (list->data)->button)) { up_button = list; break; } } space_needed = BUTTON_DATA (down_button->data)->button->allocation.width + path_bar->spacing; if (direction == GTK_TEXT_DIR_RTL) { space_available = path_bar->down_slider_button->allocation.x - GTK_WIDGET (path_bar)->allocation.x; } else { space_available = (GTK_WIDGET (path_bar)->allocation.x + GTK_WIDGET (path_bar)->allocation.width - border_width) - (path_bar->down_slider_button->allocation.x + path_bar->down_slider_button->allocation.width); } /* We have space_available extra space that's not being used. We * need space_needed space to make the button fit. So we walk down * from the end, removing buttons until we get all the space we * need. */ while (space_available < space_needed) { space_available += BUTTON_DATA (up_button->data)->button->allocation.width + path_bar->spacing; up_button = up_button->prev; path_bar->first_scrolled_button = up_button; } } static void nautilus_path_bar_scroll_up (GtkWidget *button, NautilusPathBar *path_bar) { GList *list; if (path_bar->ignore_click) { path_bar->ignore_click = FALSE; return; } gtk_widget_queue_resize (GTK_WIDGET (path_bar)); for (list = g_list_last (path_bar->button_list); list; list = list->prev) { if (list->prev && gtk_widget_get_child_visible (BUTTON_DATA (list->prev->data)->button)) { if (list->prev == path_bar->fake_root) { path_bar->fake_root = NULL; } path_bar->first_scrolled_button = list; return; } } } static gboolean nautilus_path_bar_scroll_timeout (NautilusPathBar *path_bar) { gboolean retval = FALSE; GDK_THREADS_ENTER (); if (path_bar->timer) { if (GTK_WIDGET_HAS_FOCUS (path_bar->up_slider_button)) { nautilus_path_bar_scroll_up (path_bar->up_slider_button, path_bar); } else { if (GTK_WIDGET_HAS_FOCUS (path_bar->down_slider_button)) { nautilus_path_bar_scroll_down (path_bar->down_slider_button, path_bar); } } if (path_bar->need_timer) { path_bar->need_timer = FALSE; path_bar->timer = g_timeout_add (SCROLL_TIMEOUT, (GSourceFunc)nautilus_path_bar_scroll_timeout, path_bar); } else { retval = TRUE; } } GDK_THREADS_LEAVE (); return retval; } static void nautilus_path_bar_stop_scrolling (NautilusPathBar *path_bar) { if (path_bar->timer) { g_source_remove (path_bar->timer); path_bar->timer = 0; path_bar->need_timer = FALSE; } } static gboolean nautilus_path_bar_slider_button_press (GtkWidget *widget, GdkEventButton *event, NautilusPathBar *path_bar) { if (!GTK_WIDGET_HAS_FOCUS (widget)) { gtk_widget_grab_focus (widget); } if (event->type != GDK_BUTTON_PRESS || event->button != 1) { return FALSE; } path_bar->ignore_click = FALSE; if (widget == path_bar->up_slider_button) { nautilus_path_bar_scroll_up (path_bar->up_slider_button, path_bar); } else { if (widget == path_bar->down_slider_button) { nautilus_path_bar_scroll_down (path_bar->down_slider_button, path_bar); } } if (!path_bar->timer) { path_bar->need_timer = TRUE; path_bar->timer = g_timeout_add (INITIAL_SCROLL_TIMEOUT, (GSourceFunc)nautilus_path_bar_scroll_timeout, path_bar); } return FALSE; } static gboolean nautilus_path_bar_slider_button_release (GtkWidget *widget, GdkEventButton *event, NautilusPathBar *path_bar) { if (event->type != GDK_BUTTON_RELEASE) { return FALSE; } path_bar->ignore_click = TRUE; nautilus_path_bar_stop_scrolling (path_bar); return FALSE; } static void nautilus_path_bar_grab_notify (GtkWidget *widget, gboolean was_grabbed) { if (!was_grabbed) { nautilus_path_bar_stop_scrolling (NAUTILUS_PATH_BAR (widget)); } } static void nautilus_path_bar_state_changed (GtkWidget *widget, GtkStateType previous_state) { if (!GTK_WIDGET_IS_SENSITIVE (widget)) { nautilus_path_bar_stop_scrolling (NAUTILUS_PATH_BAR (widget)); } } /* Changes the icons wherever it is needed */ static void reload_icons (NautilusPathBar *path_bar) { GList *list; if (path_bar->root_icon) { g_object_unref (path_bar->root_icon); path_bar->root_icon = NULL; } if (path_bar->home_icon) { g_object_unref (path_bar->home_icon); path_bar->home_icon = NULL; } if (path_bar->desktop_icon) { g_object_unref (path_bar->desktop_icon); path_bar->desktop_icon = NULL; } for (list = path_bar->button_list; list; list = list->next) { ButtonData *button_data; gboolean current_dir; button_data = BUTTON_DATA (list->data); if (button_data->type != NORMAL_BUTTON) { current_dir = gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (button_data->button)); nautilus_path_bar_update_button_appearance (path_bar, button_data, current_dir); } } } static void change_icon_theme (NautilusPathBar *path_bar) { path_bar->icon_size = NAUTILUS_PATH_BAR_ICON_SIZE; reload_icons (path_bar); } /* Callback used when a GtkSettings value changes */ static void settings_notify_cb (GObject *object, GParamSpec *pspec, NautilusPathBar *path_bar) { const char *name; name = g_param_spec_get_name (pspec); if (! strcmp (name, "gtk-icon-theme-name") || ! strcmp (name, "gtk-icon-sizes")) { change_icon_theme (path_bar); } } static void nautilus_path_bar_check_icon_theme (NautilusPathBar *path_bar) { GtkSettings *settings; if (path_bar->settings_signal_id) { return; } settings = gtk_settings_get_for_screen (gtk_widget_get_screen (GTK_WIDGET (path_bar))); path_bar->settings_signal_id = g_signal_connect (settings, "notify", G_CALLBACK (settings_notify_cb), path_bar); change_icon_theme (path_bar); } /* Public functions and their helpers */ static void nautilus_path_bar_clear_buttons (NautilusPathBar *path_bar) { while (path_bar->button_list != NULL) { gtk_container_remove (GTK_CONTAINER (path_bar), BUTTON_DATA (path_bar->button_list->data)->button); } path_bar->first_scrolled_button = NULL; path_bar->fake_root = NULL; } static void button_clicked_cb (GtkWidget *button, gpointer data) { ButtonData *button_data; NautilusPathBar *path_bar; GList *button_list; gboolean child_is_hidden; button_data = BUTTON_DATA (data); if (button_data->ignore_changes) { return; } path_bar = NAUTILUS_PATH_BAR (button->parent); button_list = g_list_find (path_bar->button_list, button_data); g_assert (button_list != NULL); gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (button), TRUE); if (button_list->prev) { ButtonData *child_data; child_data = BUTTON_DATA (button_list->prev->data); child_is_hidden = child_data->file_is_hidden; } else { child_is_hidden = FALSE; } g_signal_emit (path_bar, path_bar_signals [PATH_CLICKED], 0, button_data->path); } static char * get_icon_name_for_file_path (const char *file_path) { NautilusFile *file; char *icon_name; file = nautilus_file_get (file_path); if (!file) { return g_strdup (DEFAULT_ICON); } icon_name = NULL; if (nautilus_icon_factory_is_icon_ready_for_file (file)) { icon_name = nautilus_icon_factory_get_icon_for_file (file, FALSE); } if (!icon_name) { icon_name = g_strdup (DEFAULT_ICON); } nautilus_file_unref (file); return icon_name; } static GdkPixbuf * get_button_image (NautilusPathBar *path_bar, ButtonType button_type) { char *icon_name; switch (button_type) { case ROOT_BUTTON: if (path_bar->root_icon != NULL) { return path_bar->root_icon; } icon_name = get_icon_name_for_file_path (path_bar->root_path); if (strcmp (icon_name, DEFAULT_ICON) == 0) { path_bar->root_icon = nautilus_icon_factory_get_pixbuf_from_name (DEFAULT_FILESYSTEM_ICON, NULL, NAUTILUS_PATH_BAR_ICON_SIZE, TRUE, NULL); } else { path_bar->root_icon = nautilus_icon_factory_get_pixbuf_from_name (icon_name, NULL, NAUTILUS_PATH_BAR_ICON_SIZE, TRUE, NULL); } g_free (icon_name); return path_bar->root_icon; case HOME_BUTTON: if (path_bar->home_icon != NULL) { return path_bar->home_icon; } if (!desktop_is_home) { icon_name = get_icon_name_for_file_path (path_bar->home_path); if (strcmp (icon_name, DEFAULT_ICON) == 0) { path_bar->home_icon = nautilus_icon_factory_get_pixbuf_from_name (DEFAULT_HOME_ICON, NULL, NAUTILUS_PATH_BAR_ICON_SIZE, TRUE, NULL); } else { path_bar->home_icon = nautilus_icon_factory_get_pixbuf_from_name (icon_name, NULL, NAUTILUS_PATH_BAR_ICON_SIZE, TRUE, NULL); } g_free (icon_name); } else { path_bar->home_icon = nautilus_icon_factory_get_pixbuf_from_name (DEFAULT_DESKTOP_ICON, NULL, NAUTILUS_PATH_BAR_ICON_SIZE, TRUE, NULL); } return path_bar->home_icon; case DESKTOP_BUTTON: if (path_bar->desktop_icon != NULL) { return path_bar->desktop_icon; } icon_name = get_icon_name_for_file_path (path_bar->desktop_path); if (strcmp (icon_name, DEFAULT_ICON) == 0) { path_bar->desktop_icon = nautilus_icon_factory_get_pixbuf_from_name (DEFAULT_DESKTOP_ICON, NULL, NAUTILUS_PATH_BAR_ICON_SIZE, TRUE, NULL); } else { path_bar->desktop_icon = nautilus_icon_factory_get_pixbuf_from_name (icon_name, NULL, NAUTILUS_PATH_BAR_ICON_SIZE, TRUE, NULL); } g_free (icon_name); return path_bar->desktop_icon; default: return NULL; } return NULL; } static void button_data_free (ButtonData *button_data) { g_free (button_data->path); g_free (button_data->dir_name); if (button_data->custom_icon_name) { g_free (button_data->custom_icon_name); } g_free (button_data); } static const char * get_dir_name (ButtonData *button_data) { if (button_data->type == DESKTOP_BUTTON || (button_data->type == HOME_BUTTON && desktop_is_home)) { return _("Desktop"); } else { return button_data->dir_name; } } /* We always want to request the same size for the label, whether * or not the contents are bold */ static void label_size_request_cb (GtkWidget *widget, GtkRequisition *requisition, ButtonData *button_data) { const gchar *dir_name = get_dir_name (button_data); PangoLayout *layout; gint bold_width, bold_height; gchar *markup; layout = gtk_widget_create_pango_layout (button_data->label, dir_name); pango_layout_get_pixel_size (layout, &requisition->width, &requisition->height); markup = g_markup_printf_escaped ("%s", dir_name); pango_layout_set_markup (layout, markup, -1); g_free (markup); pango_layout_get_pixel_size (layout, &bold_width, &bold_height); requisition->width = MAX (requisition->width, bold_width); requisition->height = MAX (requisition->height, bold_height); g_object_unref (layout); } static void nautilus_path_bar_update_button_appearance (NautilusPathBar *path_bar, ButtonData *button_data, gboolean current_dir) { const gchar *dir_name = get_dir_name (button_data); if (button_data->label != NULL) { if (current_dir) { char *markup; markup = g_markup_printf_escaped ("%s", dir_name); gtk_label_set_markup (GTK_LABEL (button_data->label), markup); g_free (markup); } else { gtk_label_set_text (GTK_LABEL (button_data->label), dir_name); } } if (button_data->image != NULL) { if (button_data->type == VOLUME_BUTTON || (button_data->type == NORMAL_BUTTON && button_data->is_base_dir) ) { /* set custom icon for roots */ if (button_data->custom_icon_name) { gtk_image_set_from_icon_name (GTK_IMAGE (button_data->image), button_data->custom_icon_name, GTK_ICON_SIZE_MENU); } } else { GdkPixbuf *pixbuf; pixbuf = get_button_image (path_bar, button_data->type); gtk_image_set_from_pixbuf (GTK_IMAGE (button_data->image), pixbuf); } } if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (button_data->button)) != current_dir) { button_data->ignore_changes = TRUE; gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (button_data->button), current_dir); button_data->ignore_changes = FALSE; } } static gboolean is_file_path_equal (const char *file_path_1, const char *file_path_2) { GnomeVFSURI *vfs_uri_1, *vfs_uri_2; gboolean result; vfs_uri_1 = gnome_vfs_uri_new (file_path_1); if (vfs_uri_1 == NULL) { return FALSE; } vfs_uri_2 = gnome_vfs_uri_new (file_path_2); if (vfs_uri_2 == NULL) { gnome_vfs_uri_unref (vfs_uri_1); return FALSE; } result = gnome_vfs_uri_equal (vfs_uri_1, vfs_uri_2); gnome_vfs_uri_unref (vfs_uri_1); gnome_vfs_uri_unref (vfs_uri_2); return result; } static gboolean is_file_path_mounted_volume (const char *file_path, ButtonData *button_data) { GnomeVFSVolumeMonitor *volume_monitor; GList *volumes, *l; GnomeVFSVolume *volume; gboolean result; char *mount_uri; result = FALSE; volume_monitor = gnome_vfs_get_volume_monitor (); volumes = gnome_vfs_volume_monitor_get_mounted_volumes (volume_monitor); for (l = volumes; l != NULL; l = l->next) { volume = l->data; if (result || !gnome_vfs_volume_is_user_visible (volume)) { gnome_vfs_volume_unref (volume); continue; } mount_uri = gnome_vfs_volume_get_activation_uri (volume); if (is_file_path_equal (file_path, mount_uri)) { result = TRUE; /* set volume specific details in button_data */ if (button_data) { button_data->custom_icon_name = gnome_vfs_volume_get_icon (volume); if (!button_data->custom_icon_name) { button_data->custom_icon_name = g_strdup (DEFAULT_ICON); } button_data->path = g_strdup (mount_uri); button_data->dir_name = gnome_vfs_volume_get_display_name (volume); } gnome_vfs_volume_unref (volume); g_free (mount_uri); continue; } gnome_vfs_volume_unref (volume); g_free (mount_uri); } g_list_free (volumes); return result; } static ButtonType find_button_type (NautilusPathBar *path_bar, const char *path, ButtonData *button_data) { if (path_bar->root_path != NULL && is_file_path_equal (path, path_bar->root_path)) { return ROOT_BUTTON; } if (path_bar->home_path != NULL && is_file_path_equal (path, path_bar->home_path)) { return HOME_BUTTON; } if (path_bar->desktop_path != NULL && is_file_path_equal (path, path_bar->desktop_path)) { if (!desktop_is_home) { return DESKTOP_BUTTON; } else { return NORMAL_BUTTON; } } if (is_file_path_mounted_volume (path, button_data)) { return VOLUME_BUTTON; } return NORMAL_BUTTON; } static void button_drag_data_get_cb (GtkWidget *widget, GdkDragContext *context, GtkSelectionData *selection_data, guint info, guint time_, gpointer data) { ButtonData *button_data; char *uri_list; button_data = data; uri_list = g_strconcat (button_data->path, "\r\n", NULL); gtk_selection_data_set (selection_data, selection_data->target, 8, uri_list, strlen (uri_list)); g_free (uri_list); } static ButtonData * make_directory_button (NautilusPathBar *path_bar, const char *dir_name, const char *path, gboolean current_dir, gboolean base_dir, gboolean file_is_hidden) { const GtkTargetEntry targets[] = { { "text/uri-list", 0, 0 } }; GtkWidget *child; GtkWidget *label_alignment; ButtonData *button_data; child = NULL; label_alignment = NULL; file_is_hidden = !! file_is_hidden; /* Is it a special button? */ button_data = g_new0 (ButtonData, 1); button_data->type = find_button_type (path_bar, path, button_data); button_data->button = gtk_toggle_button_new (); switch (button_data->type) { case ROOT_BUTTON: button_data->image = gtk_image_new (); child = button_data->image; button_data->label = NULL; break; case HOME_BUTTON: case DESKTOP_BUTTON: case VOLUME_BUTTON: button_data->image = gtk_image_new (); button_data->label = gtk_label_new (NULL); label_alignment = gtk_alignment_new (0.5, 0.5, 1.0, 1.0); gtk_container_add (GTK_CONTAINER (label_alignment), button_data->label); child = gtk_hbox_new (FALSE, 2); gtk_box_pack_start (GTK_BOX (child), button_data->image, FALSE, FALSE, 0); gtk_box_pack_start (GTK_BOX (child), label_alignment, FALSE, FALSE, 0); break; case NORMAL_BUTTON: default: if (base_dir) { button_data->image = gtk_image_new (); button_data->label = gtk_label_new (NULL); label_alignment = gtk_alignment_new (0.5, 0.5, 1.0, 1.0); gtk_container_add (GTK_CONTAINER (label_alignment), button_data->label); child = gtk_hbox_new (FALSE, 2); gtk_box_pack_start (GTK_BOX (child), button_data->image, FALSE, FALSE, 0); gtk_box_pack_start (GTK_BOX (child), label_alignment, FALSE, FALSE, 0); button_data->is_base_dir = TRUE; button_data->custom_icon_name = get_icon_name_for_file_path (path); } else { button_data->is_base_dir = FALSE; button_data->label = gtk_label_new (NULL); label_alignment = gtk_alignment_new (0.5, 0.5, 1.0, 1.0); gtk_container_add (GTK_CONTAINER (label_alignment), button_data->label); child = label_alignment; button_data->image = NULL; } } /* label_alignment is created because we can't override size-request * on label itself and still have the contents of the label centered * properly in the label's requisition */ if (label_alignment) { g_signal_connect (label_alignment, "size-request", G_CALLBACK (label_size_request_cb), button_data); } /* do not set these for volumes */ if (button_data->type != VOLUME_BUTTON) { button_data->dir_name = g_strdup (dir_name); button_data->path = g_strdup (path); } button_data->file_is_hidden = file_is_hidden; gtk_container_add (GTK_CONTAINER (button_data->button), child); gtk_widget_show_all (button_data->button); nautilus_path_bar_update_button_appearance (path_bar, button_data, current_dir); g_signal_connect (button_data->button, "clicked", G_CALLBACK (button_clicked_cb), button_data); g_object_weak_ref (G_OBJECT (button_data->button), (GWeakNotify) button_data_free, button_data); gtk_drag_source_set (button_data->button, GDK_BUTTON1_MASK, targets, G_N_ELEMENTS (targets), GDK_ACTION_COPY); g_signal_connect (button_data->button, "drag-data-get",G_CALLBACK (button_drag_data_get_cb), button_data); return button_data; } static gboolean nautilus_path_bar_check_parent_path (NautilusPathBar *path_bar, const char *file_path) { GList *list; GList *current_path; gboolean need_new_fake_root; current_path = NULL; need_new_fake_root = FALSE; for (list = path_bar->button_list; list; list = list->next) { ButtonData *button_data; button_data = list->data; if (is_file_path_equal (file_path, button_data->path)) { current_path = list; break; } if (list == path_bar->fake_root) { need_new_fake_root = TRUE; } } if (current_path) { if (need_new_fake_root) { path_bar->fake_root = NULL; for (list = current_path; list; list = list->next) { ButtonData *button_data; button_data = list->data; if (BUTTON_IS_FAKE_ROOT (button_data)) { path_bar->fake_root = list; break; } } } for (list = path_bar->button_list; list; list = list->next) { nautilus_path_bar_update_button_appearance (path_bar, BUTTON_DATA (list->data), (list == current_path) ? TRUE : FALSE); } if (!gtk_widget_get_child_visible (BUTTON_DATA (current_path->data)->button)) { path_bar->first_scrolled_button = current_path; gtk_widget_queue_resize (GTK_WIDGET (path_bar)); } return TRUE; } return FALSE; } static char * get_parent_directory (const char *file_path) { GnomeVFSURI *vfs_uri, *parent_vfs_uri; char *parent_directory; vfs_uri = gnome_vfs_uri_new (file_path); if (vfs_uri == NULL) { return NULL; } parent_vfs_uri = gnome_vfs_uri_get_parent (vfs_uri); gnome_vfs_uri_unref (vfs_uri); if (parent_vfs_uri == NULL) { return NULL; } parent_directory = gnome_vfs_uri_to_string (parent_vfs_uri, GNOME_VFS_URI_HIDE_NONE); gnome_vfs_uri_unref (parent_vfs_uri); return parent_directory; } static char * get_display_name_for_folder (const char *file_path) { GnomeVFSURI *vfs_uri; NautilusFile *file; char *name; vfs_uri = gnome_vfs_uri_new (file_path); if (vfs_uri == NULL) { file = nautilus_file_get (file_path); name = nautilus_file_get_display_name (file); nautilus_file_unref (file); return name; } name = nautilus_get_uri_shortname_for_display (vfs_uri); gnome_vfs_uri_unref (vfs_uri); return name; } static gboolean nautilus_path_bar_update_path (NautilusPathBar *path_bar, const char *file_path) { char *path, *parent_path, *name; gboolean first_directory, last_directory; gboolean result; GList *new_buttons, *l, *fake_root; ButtonData *button_data; g_return_val_if_fail (NAUTILUS_IS_PATH_BAR (path_bar), FALSE); g_return_val_if_fail (file_path != NULL, FALSE); name = NULL; fake_root = NULL; result = TRUE; parent_path = NULL; first_directory = TRUE; last_directory = FALSE; new_buttons = NULL; path = g_strdup (file_path); gtk_widget_push_composite_child (); while (path != NULL) { parent_path = get_parent_directory (path); name = get_display_name_for_folder (path); last_directory = !parent_path; button_data = make_directory_button (path_bar, name, path, first_directory, last_directory, FALSE); g_free (path); g_free (name); new_buttons = g_list_prepend (new_buttons, button_data); if (BUTTON_IS_FAKE_ROOT (button_data)) { fake_root = new_buttons; } path = parent_path; first_directory = FALSE; } nautilus_path_bar_clear_buttons (path_bar); path_bar->button_list = g_list_reverse (new_buttons); path_bar->fake_root = fake_root; for (l = path_bar->button_list; l; l = l->next) { GtkWidget *button; button = BUTTON_DATA (l->data)->button; gtk_container_add (GTK_CONTAINER (path_bar), button); } gtk_widget_pop_composite_child (); return result; } gboolean nautilus_path_bar_set_path (NautilusPathBar *path_bar, const char *file_path) { g_return_val_if_fail (NAUTILUS_IS_PATH_BAR (path_bar), FALSE); g_return_val_if_fail (file_path != NULL, FALSE); /* Check whether the new path is already present in the pathbar as buttons. * This could be a parent directory or a previous selected subdirectory. */ if (nautilus_path_bar_check_parent_path (path_bar, file_path)) { return TRUE; } return nautilus_path_bar_update_path (path_bar, file_path); } /** * _nautilus_path_bar_up: * @path_bar: a #NautilusPathBar * * If the selected button in the pathbar is not the furthest button "up" (in the * root direction), act as if the user clicked on the next button up. **/ void nautilus_path_bar_up (NautilusPathBar *path_bar) { GList *l; for (l = path_bar->button_list; l; l = l->next) { GtkWidget *button = BUTTON_DATA (l->data)->button; if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (button))) { if (l->next) { GtkWidget *next_button = BUTTON_DATA (l->next->data)->button; button_clicked_cb (next_button, l->next->data); } break; } } } /** * _nautilus_path_bar_down: * @path_bar: a #NautilusPathBar * * If the selected button in the pathbar is not the furthest button "down" (in the * leaf direction), act as if the user clicked on the next button down. **/ void nautilus_path_bar_down (NautilusPathBar *path_bar) { GList *l; for (l = path_bar->button_list; l; l = l->next) { GtkWidget *button = BUTTON_DATA (l->data)->button; if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (button))) { if (l->prev) { GtkWidget *prev_button = BUTTON_DATA (l->prev->data)->button; button_clicked_cb (prev_button, l->prev->data); } break; } } }