/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */ /* 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 "nautilus-pathbar.h" #include #include #include #include #include #include "nautilus-window-slot-dnd.h" enum { PATH_CLICKED, PATH_EVENT, LAST_SIGNAL }; typedef enum { NORMAL_BUTTON, ROOT_BUTTON, HOME_BUTTON, MOUNT_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 }; #define NAUTILUS_PATH_BAR_ICON_SIZE 16 #define NAUTILUS_PATH_BAR_BUTTON_MAX_WIDTH 250 typedef struct { GtkWidget *button; ButtonType type; char *dir_name; GFile *path; NautilusFile *file; unsigned int file_changed_signal_id; /* custom icon */ GdkPixbuf *custom_icon; GtkWidget *image; GtkWidget *label; GtkWidget *bold_label; guint ignore_changes : 1; guint is_root : 1; } ButtonData; struct _NautilusPathBarDetails { GdkWindow *event_window; GFile *current_path; gpointer current_button_data; GList *button_list; GList *first_scrolled_button; GtkWidget *up_slider_button; GtkWidget *down_slider_button; guint settings_signal_id; gint16 slider_width; guint timer; guint slider_visible : 1; guint need_timer : 1; guint ignore_click : 1; unsigned int drag_slider_timeout; gboolean drag_slider_timeout_for_up_button; }; G_DEFINE_TYPE (NautilusPathBar, nautilus_path_bar, GTK_TYPE_CONTAINER); static void nautilus_path_bar_scroll_up (NautilusPathBar *path_bar); static void nautilus_path_bar_scroll_down (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_check_icon_theme (NautilusPathBar *path_bar); static void nautilus_path_bar_update_button_appearance (ButtonData *button_data); static void nautilus_path_bar_update_button_state (ButtonData *button_data, gboolean current_dir); static void nautilus_path_bar_update_path (NautilusPathBar *path_bar, GFile *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_button_set_focus_on_click (GTK_BUTTON (button), FALSE); gtk_widget_add_events (button, GDK_SCROLL_MASK); 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 gboolean slider_timeout (gpointer user_data) { NautilusPathBar *path_bar; path_bar = NAUTILUS_PATH_BAR (user_data); path_bar->priv->drag_slider_timeout = 0; if (gtk_widget_get_visible (GTK_WIDGET (path_bar))) { if (path_bar->priv->drag_slider_timeout_for_up_button) { nautilus_path_bar_scroll_up (path_bar); } else { nautilus_path_bar_scroll_down (path_bar); } } return FALSE; } static void nautilus_path_bar_slider_drag_motion (GtkWidget *widget, GdkDragContext *context, int x, int y, unsigned int time, gpointer user_data) { NautilusPathBar *path_bar; GtkSettings *settings; unsigned int timeout; path_bar = NAUTILUS_PATH_BAR (user_data); if (path_bar->priv->drag_slider_timeout == 0) { settings = gtk_widget_get_settings (widget); g_object_get (settings, "gtk-timeout-expand", &timeout, NULL); path_bar->priv->drag_slider_timeout = g_timeout_add (timeout, slider_timeout, path_bar); path_bar->priv->drag_slider_timeout_for_up_button = widget == path_bar->priv->up_slider_button; } } static void nautilus_path_bar_slider_drag_leave (GtkWidget *widget, GdkDragContext *context, unsigned int time, gpointer user_data) { NautilusPathBar *path_bar; path_bar = NAUTILUS_PATH_BAR (user_data); if (path_bar->priv->drag_slider_timeout != 0) { g_source_remove (path_bar->priv->drag_slider_timeout); path_bar->priv->drag_slider_timeout = 0; } } static void nautilus_path_bar_init (NautilusPathBar *path_bar) { path_bar->priv = G_TYPE_INSTANCE_GET_PRIVATE (path_bar, NAUTILUS_TYPE_PATH_BAR, NautilusPathBarDetails); gtk_widget_set_has_window (GTK_WIDGET (path_bar), FALSE); gtk_widget_set_redraw_on_allocate (GTK_WIDGET (path_bar), FALSE); path_bar->priv->up_slider_button = get_slider_button (path_bar, GTK_ARROW_LEFT); path_bar->priv->down_slider_button = get_slider_button (path_bar, GTK_ARROW_RIGHT); g_signal_connect_swapped (path_bar->priv->up_slider_button, "clicked", G_CALLBACK (nautilus_path_bar_scroll_up), path_bar); g_signal_connect_swapped (path_bar->priv->down_slider_button, "clicked", G_CALLBACK (nautilus_path_bar_scroll_down), path_bar); g_signal_connect (path_bar->priv->up_slider_button, "button_press_event", G_CALLBACK (nautilus_path_bar_slider_button_press), path_bar); g_signal_connect (path_bar->priv->up_slider_button, "button_release_event", G_CALLBACK (nautilus_path_bar_slider_button_release), path_bar); g_signal_connect (path_bar->priv->down_slider_button, "button_press_event", G_CALLBACK (nautilus_path_bar_slider_button_press), path_bar); g_signal_connect (path_bar->priv->down_slider_button, "button_release_event", G_CALLBACK (nautilus_path_bar_slider_button_release), path_bar); gtk_drag_dest_set (GTK_WIDGET (path_bar->priv->up_slider_button), 0, NULL, 0, 0); gtk_drag_dest_set_track_motion (GTK_WIDGET (path_bar->priv->up_slider_button), TRUE); g_signal_connect (path_bar->priv->up_slider_button, "drag-motion", G_CALLBACK (nautilus_path_bar_slider_drag_motion), path_bar); g_signal_connect (path_bar->priv->up_slider_button, "drag-leave", G_CALLBACK (nautilus_path_bar_slider_drag_leave), path_bar); gtk_drag_dest_set (GTK_WIDGET (path_bar->priv->down_slider_button), 0, NULL, 0, 0); gtk_drag_dest_set_track_motion (GTK_WIDGET (path_bar->priv->up_slider_button), TRUE); g_signal_connect (path_bar->priv->down_slider_button, "drag-motion", G_CALLBACK (nautilus_path_bar_slider_drag_motion), path_bar); g_signal_connect (path_bar->priv->down_slider_button, "drag-leave", G_CALLBACK (nautilus_path_bar_slider_drag_leave), path_bar); gtk_style_context_add_class (gtk_widget_get_style_context (GTK_WIDGET (path_bar)), GTK_STYLE_CLASS_LINKED); } static void nautilus_path_bar_finalize (GObject *object) { NautilusPathBar *path_bar; path_bar = NAUTILUS_PATH_BAR (object); nautilus_path_bar_stop_scrolling (path_bar); if (path_bar->priv->drag_slider_timeout != 0) { g_source_remove (path_bar->priv->drag_slider_timeout); path_bar->priv->drag_slider_timeout = 0; } g_list_free (path_bar->priv->button_list); 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->priv->settings_signal_id) { GtkSettings *settings; settings = gtk_settings_get_for_screen (screen); g_signal_handler_disconnect (settings, path_bar->priv->settings_signal_id); path_bar->priv->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); } static const char * get_dir_name (ButtonData *button_data) { if (button_data->type == HOME_BUTTON) { return _("Home"); } 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 set_label_size_request (ButtonData *button_data) { gint width, height; GtkRequisition min_req, bold_req; if (button_data->label == NULL) { return; } gtk_label_set_ellipsize (GTK_LABEL (button_data->label), PANGO_ELLIPSIZE_NONE); gtk_widget_get_preferred_size (button_data->label, &min_req, NULL); gtk_label_set_ellipsize (GTK_LABEL (button_data->label), PANGO_ELLIPSIZE_MIDDLE); gtk_widget_get_preferred_size (button_data->bold_label, &bold_req, NULL); width = MAX (min_req.width, bold_req.width); width = MIN (width, NAUTILUS_PATH_BAR_BUTTON_MAX_WIDTH); height = MAX (min_req.height, bold_req.height); gtk_widget_set_size_request (button_data->label, width, height); } /* Size requisition: * * Ideally, our size is determined by another widget, and we are just filling * available space. */ static void nautilus_path_bar_get_preferred_width (GtkWidget *widget, gint *minimum, gint *natural) { ButtonData *button_data; NautilusPathBar *path_bar; GList *list; gint child_height; gint height; gint child_min, child_nat; path_bar = NAUTILUS_PATH_BAR (widget); *minimum = *natural = 0; height = 0; for (list = path_bar->priv->button_list; list; list = list->next) { button_data = BUTTON_DATA (list->data); set_label_size_request (button_data); gtk_widget_get_preferred_width (button_data->button, &child_min, &child_nat); gtk_widget_get_preferred_height (button_data->button, &child_height, NULL); height = MAX (height, child_height); if (button_data->type == NORMAL_BUTTON) { /* Use 2*Height as button width because of ellipsized label. */ child_min = MAX (child_min, child_height * 2); child_nat = MAX (child_min, child_height * 2); } *minimum = MAX (*minimum, child_min); *natural = MAX (*natural, child_nat); } /* 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->priv->slider_width = MIN (height * 2 / 3 + 5, height); if (path_bar->priv->button_list && path_bar->priv->button_list->next != NULL) { *minimum += (path_bar->priv->slider_width) * 2; *natural += (path_bar->priv->slider_width) * 2; } } static void nautilus_path_bar_get_preferred_height (GtkWidget *widget, gint *minimum, gint *natural) { ButtonData *button_data; NautilusPathBar *path_bar; GList *list; gint child_min, child_nat; path_bar = NAUTILUS_PATH_BAR (widget); *minimum = *natural = 0; for (list = path_bar->priv->button_list; list; list = list->next) { button_data = BUTTON_DATA (list->data); set_label_size_request (button_data); gtk_widget_get_preferred_height (button_data->button, &child_min, &child_nat); *minimum = MAX (*minimum, child_min); *natural = MAX (*natural, child_nat); } } static void nautilus_path_bar_update_slider_buttons (NautilusPathBar *path_bar) { if (path_bar->priv->button_list) { GtkWidget *button; button = BUTTON_DATA (path_bar->priv->button_list->data)->button; if (gtk_widget_get_child_visible (button)) { gtk_widget_set_sensitive (path_bar->priv->down_slider_button, FALSE); } else { gtk_widget_set_sensitive (path_bar->priv->down_slider_button, TRUE); } button = BUTTON_DATA (g_list_last (path_bar->priv->button_list)->data)->button; if (gtk_widget_get_child_visible (button)) { gtk_widget_set_sensitive (path_bar->priv->up_slider_button, FALSE); } else { gtk_widget_set_sensitive (path_bar->priv->up_slider_button, TRUE); } } } static void nautilus_path_bar_unmap (GtkWidget *widget) { nautilus_path_bar_stop_scrolling (NAUTILUS_PATH_BAR (widget)); gdk_window_hide (NAUTILUS_PATH_BAR (widget)->priv->event_window); GTK_WIDGET_CLASS (nautilus_path_bar_parent_class)->unmap (widget); } static void nautilus_path_bar_map (GtkWidget *widget) { gdk_window_show (NAUTILUS_PATH_BAR (widget)->priv->event_window); GTK_WIDGET_CLASS (nautilus_path_bar_parent_class)->map (widget); } static void child_ordering_changed (NautilusPathBar *path_bar) { GList *l; if (path_bar->priv->up_slider_button) { gtk_style_context_invalidate (gtk_widget_get_style_context (path_bar->priv->up_slider_button)); } if (path_bar->priv->down_slider_button) { gtk_style_context_invalidate (gtk_widget_get_style_context (path_bar->priv->down_slider_button)); } for (l = path_bar->priv->button_list; l; l = l->next) { ButtonData *data = l->data; gtk_style_context_invalidate (gtk_widget_get_style_context (data->button)); } } /* 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 largest_width; gboolean need_sliders; gint up_slider_offset; gint down_slider_offset; GtkRequisition child_requisition; gboolean needs_reorder = FALSE; need_sliders = FALSE; up_slider_offset = 0; down_slider_offset = 0; path_bar = NAUTILUS_PATH_BAR (widget); gtk_widget_set_allocation (widget, allocation); if (gtk_widget_get_realized (widget)) { gdk_window_move_resize (path_bar->priv->event_window, allocation->x, allocation->y, allocation->width, allocation->height); } /* No path is set so we don't have to allocate anything. */ if (path_bar->priv->button_list == NULL) { return; } direction = gtk_widget_get_direction (widget); /* First, we check to see if we need the scrollbars. */ width = 0; gtk_widget_get_preferred_size (BUTTON_DATA (path_bar->priv->button_list->data)->button, &child_requisition, NULL); width += child_requisition.width; for (list = path_bar->priv->button_list->next; list; list = list->next) { child = BUTTON_DATA (list->data)->button; gtk_widget_get_preferred_size (child, &child_requisition, NULL); width += child_requisition.width; } if (width <= allocation->width) { first_button = g_list_last (path_bar->priv->button_list); } else { gboolean reached_end; gint slider_space; reached_end = FALSE; slider_space = 2 * (path_bar->priv->slider_width); if (path_bar->priv->first_scrolled_button) { first_button = path_bar->priv->first_scrolled_button; } else { first_button = path_bar->priv->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. */ gtk_widget_get_preferred_size (BUTTON_DATA (first_button->data)->button, &child_requisition, NULL); width = child_requisition.width; list = first_button->prev; while (list && !reached_end) { child = BUTTON_DATA (list->data)->button; gtk_widget_get_preferred_size (child, &child_requisition, NULL); if (width + child_requisition.width + slider_space > allocation->width) { reached_end = TRUE; } else { width += child_requisition.width; } 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; gtk_widget_get_preferred_size (child, &child_requisition, NULL); if (width + child_requisition.width + slider_space > allocation->width) { reached_end = TRUE; } else { width += child_requisition.width; first_button = first_button->next; } } } /* Now, we allocate space to the buttons */ child_allocation.y = allocation->y; child_allocation.height = allocation->height; if (direction == GTK_TEXT_DIR_RTL) { child_allocation.x = allocation->x + allocation->width; if (need_sliders) { child_allocation.x -= path_bar->priv->slider_width; up_slider_offset = allocation->width - path_bar->priv->slider_width; } } else { child_allocation.x = allocation->x; if (need_sliders) { up_slider_offset = 0; child_allocation.x += path_bar->priv->slider_width; } } /* Determine the largest possible allocation size */ largest_width = allocation->width; if (need_sliders) { largest_width -= (path_bar->priv->slider_width) * 2; } for (list = first_button; list; list = list->prev) { child = BUTTON_DATA (list->data)->button; gtk_widget_get_preferred_size (child, &child_requisition, NULL); child_allocation.width = MIN (child_requisition.width, largest_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->priv->slider_width < allocation->x) { break; } } else { if (need_sliders && direction == GTK_TEXT_DIR_LTR) { if (child_allocation.x + child_allocation.width + path_bar->priv->slider_width > allocation->x + allocation->width) { break; } } } needs_reorder |= gtk_widget_get_child_visible (child) == FALSE; gtk_widget_set_child_visible (child, TRUE); gtk_widget_size_allocate (child, &child_allocation); if (direction == GTK_TEXT_DIR_RTL) { down_slider_offset = child_allocation.x - allocation->x - path_bar->priv->slider_width; } else { down_slider_offset += child_allocation.width; child_allocation.x += child_allocation.width; } } /* Now we go hide all the widgets that don't fit */ while (list) { child = BUTTON_DATA (list->data)->button; needs_reorder |= gtk_widget_get_child_visible (child) == TRUE; gtk_widget_set_child_visible (child, FALSE); list = list->prev; } for (list = first_button->next; list; list = list->next) { child = BUTTON_DATA (list->data)->button; needs_reorder |= gtk_widget_get_child_visible (child) == TRUE; gtk_widget_set_child_visible (child, FALSE); } if (need_sliders) { child_allocation.width = path_bar->priv->slider_width; child_allocation.x = up_slider_offset + allocation->x; gtk_widget_size_allocate (path_bar->priv->up_slider_button, &child_allocation); needs_reorder |= gtk_widget_get_child_visible (path_bar->priv->up_slider_button) == FALSE; gtk_widget_set_child_visible (path_bar->priv->up_slider_button, TRUE); gtk_widget_show_all (path_bar->priv->up_slider_button); if (direction == GTK_TEXT_DIR_LTR) { down_slider_offset += path_bar->priv->slider_width; } } else { needs_reorder |= gtk_widget_get_child_visible (path_bar->priv->up_slider_button) == TRUE; gtk_widget_set_child_visible (path_bar->priv->up_slider_button, FALSE); } if (need_sliders) { child_allocation.width = path_bar->priv->slider_width; child_allocation.x = down_slider_offset + allocation->x; gtk_widget_size_allocate (path_bar->priv->down_slider_button, &child_allocation); needs_reorder |= gtk_widget_get_child_visible (path_bar->priv->down_slider_button) == FALSE; gtk_widget_set_child_visible (path_bar->priv->down_slider_button, TRUE); gtk_widget_show_all (path_bar->priv->down_slider_button); nautilus_path_bar_update_slider_buttons (path_bar); } else { needs_reorder |= gtk_widget_get_child_visible (path_bar->priv->down_slider_button) == TRUE; gtk_widget_set_child_visible (path_bar->priv->down_slider_button, FALSE); } if (needs_reorder) { child_ordering_changed (path_bar); } } static void nautilus_path_bar_style_updated (GtkWidget *widget) { GTK_WIDGET_CLASS (nautilus_path_bar_parent_class)->style_updated (widget); 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 gboolean nautilus_path_bar_scroll (GtkWidget *widget, GdkEventScroll *event) { NautilusPathBar *path_bar; path_bar = NAUTILUS_PATH_BAR (widget); switch (event->direction) { case GDK_SCROLL_RIGHT: case GDK_SCROLL_DOWN: nautilus_path_bar_scroll_down (path_bar); return TRUE; case GDK_SCROLL_LEFT: case GDK_SCROLL_UP: nautilus_path_bar_scroll_up (path_bar); return TRUE; case GDK_SCROLL_SMOOTH: break; } return FALSE; } static void nautilus_path_bar_realize (GtkWidget *widget) { NautilusPathBar *path_bar; GtkAllocation allocation; GdkWindow *window; GdkWindowAttr attributes; gint attributes_mask; gtk_widget_set_realized (widget, TRUE); path_bar = NAUTILUS_PATH_BAR (widget); window = gtk_widget_get_parent_window (widget); gtk_widget_set_window (widget, window); g_object_ref (window); gtk_widget_get_allocation (widget, &allocation); attributes.window_type = GDK_WINDOW_CHILD; attributes.x = allocation.x; attributes.y = allocation.y; attributes.width = allocation.width; attributes.height = allocation.height; attributes.wclass = GDK_INPUT_ONLY; attributes.event_mask = gtk_widget_get_events (widget); attributes.event_mask |= GDK_SCROLL_MASK | GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK; attributes_mask = GDK_WA_X | GDK_WA_Y; path_bar->priv->event_window = gdk_window_new (gtk_widget_get_parent_window (widget), &attributes, attributes_mask); gdk_window_set_user_data (path_bar->priv->event_window, widget); } static void nautilus_path_bar_unrealize (GtkWidget *widget) { NautilusPathBar *path_bar; path_bar = NAUTILUS_PATH_BAR (widget); gdk_window_set_user_data (path_bar->priv->event_window, NULL); gdk_window_destroy (path_bar->priv->event_window); path_bar->priv->event_window = NULL; GTK_WIDGET_CLASS (nautilus_path_bar_parent_class)->unrealize (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_get_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->priv->up_slider_button) { nautilus_path_bar_remove_1 (container, widget); path_bar->priv->up_slider_button = NULL; return; } if (widget == path_bar->priv->down_slider_button) { nautilus_path_bar_remove_1 (container, widget); path_bar->priv->down_slider_button = NULL; return; } children = path_bar->priv->button_list; while (children) { if (widget == BUTTON_DATA (children->data)->button) { nautilus_path_bar_remove_1 (container, widget); path_bar->priv->button_list = g_list_remove_link (path_bar->priv->button_list, children); g_list_free_1 (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->priv->button_list; while (children) { GtkWidget *child; child = BUTTON_DATA (children->data)->button; children = children->next; (* callback) (child, callback_data); } if (path_bar->priv->up_slider_button) { (* callback) (path_bar->priv->up_slider_button, callback_data); } if (path_bar->priv->down_slider_button) { (* callback) (path_bar->priv->down_slider_button, callback_data); } } 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_get_sensitive (widget)) { nautilus_path_bar_stop_scrolling (NAUTILUS_PATH_BAR (widget)); } } static GtkWidgetPath * nautilus_path_bar_get_path_for_child (GtkContainer *container, GtkWidget *child) { NautilusPathBar *path_bar = NAUTILUS_PATH_BAR (container); GtkWidgetPath *path; path = gtk_widget_path_copy (gtk_widget_get_path (GTK_WIDGET (path_bar))); if (gtk_widget_get_visible (child) && gtk_widget_get_child_visible (child)) { GtkWidgetPath *sibling_path; GList *visible_children; GList *l; int pos; /* 1. Build the list of visible children, in visually left-to-right order * (i.e. independently of the widget's direction). Note that our * button_list is stored in innermost-to-outermost path order! */ visible_children = NULL; if (gtk_widget_get_visible (path_bar->priv->down_slider_button) && gtk_widget_get_child_visible (path_bar->priv->down_slider_button)) { visible_children = g_list_prepend (visible_children, path_bar->priv->down_slider_button); } for (l = path_bar->priv->button_list; l; l = l->next) { ButtonData *data = l->data; if (gtk_widget_get_visible (data->button) && gtk_widget_get_child_visible (data->button)) visible_children = g_list_prepend (visible_children, data->button); } if (gtk_widget_get_visible (path_bar->priv->up_slider_button) && gtk_widget_get_child_visible (path_bar->priv->up_slider_button)) { visible_children = g_list_prepend (visible_children, path_bar->priv->up_slider_button); } if (gtk_widget_get_direction (GTK_WIDGET (path_bar)) == GTK_TEXT_DIR_RTL) { visible_children = g_list_reverse (visible_children); } /* 2. Find the index of the child within that list */ pos = 0; for (l = visible_children; l; l = l->next) { GtkWidget *button = l->data; if (button == child) { break; } pos++; } /* 3. Build the path */ sibling_path = gtk_widget_path_new (); for (l = visible_children; l; l = l->next) { gtk_widget_path_append_for_widget (sibling_path, l->data); } gtk_widget_path_append_with_siblings (path, sibling_path, pos); g_list_free (visible_children); gtk_widget_path_unref (sibling_path); } else { gtk_widget_path_append_for_widget (path, child); } return path; } static void nautilus_path_bar_class_init (NautilusPathBarClass *path_bar_class) { GObjectClass *gobject_class; GtkWidgetClass *widget_class; GtkContainerClass *container_class; gobject_class = (GObjectClass *) 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->get_preferred_height = nautilus_path_bar_get_preferred_height; widget_class->get_preferred_width = nautilus_path_bar_get_preferred_width; widget_class->realize = nautilus_path_bar_realize; widget_class->unrealize = nautilus_path_bar_unrealize; widget_class->unmap = nautilus_path_bar_unmap; widget_class->map = nautilus_path_bar_map; widget_class->size_allocate = nautilus_path_bar_size_allocate; widget_class->style_updated = nautilus_path_bar_style_updated; 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; widget_class->scroll_event = nautilus_path_bar_scroll; container_class->add = nautilus_path_bar_add; container_class->forall = nautilus_path_bar_forall; container_class->remove = nautilus_path_bar_remove; container_class->get_path_for_child = nautilus_path_bar_get_path_for_child; path_bar_signals [PATH_CLICKED] = g_signal_new ("path-clicked", G_OBJECT_CLASS_TYPE (path_bar_class), G_SIGNAL_RUN_FIRST, G_STRUCT_OFFSET (NautilusPathBarClass, path_clicked), NULL, NULL, g_cclosure_marshal_VOID__OBJECT, G_TYPE_NONE, 1, G_TYPE_FILE); path_bar_signals [PATH_EVENT] = g_signal_new ("path-event", G_OBJECT_CLASS_TYPE (path_bar_class), G_SIGNAL_RUN_FIRST, G_STRUCT_OFFSET (NautilusPathBarClass, path_event), NULL, NULL, NULL, G_TYPE_NONE, 2, G_TYPE_FILE, GDK_TYPE_EVENT); gtk_container_class_handle_border_width (container_class); g_type_class_add_private (path_bar_class, sizeof (NautilusPathBarDetails)); } static void nautilus_path_bar_scroll_down (NautilusPathBar *path_bar) { GList *list; GList *down_button; GList *up_button; gint space_available; gint space_needed; GtkTextDirection direction; GtkAllocation allocation, button_allocation, slider_allocation; down_button = NULL; up_button = NULL; if (path_bar->priv->ignore_click) { path_bar->priv->ignore_click = FALSE; return; } gtk_widget_queue_resize (GTK_WIDGET (path_bar)); 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->priv->button_list; list; list = list->next) { if (list->next && gtk_widget_get_child_visible (BUTTON_DATA (list->next->data)->button)) { down_button = list; break; } } if (down_button == NULL) { return; } /* Find the last visible button on the 'up' end */ for (list = g_list_last (path_bar->priv->button_list); list; list = list->prev) { if (gtk_widget_get_child_visible (BUTTON_DATA (list->data)->button)) { up_button = list; break; } } gtk_widget_get_allocation (BUTTON_DATA (down_button->data)->button, &button_allocation); gtk_widget_get_allocation (GTK_WIDGET (path_bar), &allocation); gtk_widget_get_allocation (path_bar->priv->down_slider_button, &slider_allocation); space_needed = button_allocation.width; if (direction == GTK_TEXT_DIR_RTL) { space_available = slider_allocation.x - allocation.x; } else { space_available = (allocation.x + allocation.width) - (slider_allocation.x + slider_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. */ gtk_widget_get_allocation (BUTTON_DATA (up_button->data)->button, &button_allocation); while ((space_available < space_needed) && (up_button != NULL)) { space_available += button_allocation.width; up_button = up_button->prev; path_bar->priv->first_scrolled_button = up_button; } } static void nautilus_path_bar_scroll_up (NautilusPathBar *path_bar) { GList *list; if (path_bar->priv->ignore_click) { path_bar->priv->ignore_click = FALSE; return; } gtk_widget_queue_resize (GTK_WIDGET (path_bar)); for (list = g_list_last (path_bar->priv->button_list); list; list = list->prev) { if (list->prev && gtk_widget_get_child_visible (BUTTON_DATA (list->prev->data)->button)) { path_bar->priv->first_scrolled_button = list; return; } } } static gboolean nautilus_path_bar_scroll_timeout (NautilusPathBar *path_bar) { gboolean retval = FALSE; if (path_bar->priv->timer) { if (gtk_widget_has_focus (path_bar->priv->up_slider_button)) { nautilus_path_bar_scroll_up (path_bar); } else { if (gtk_widget_has_focus (path_bar->priv->down_slider_button)) { nautilus_path_bar_scroll_down (path_bar); } } if (path_bar->priv->need_timer) { path_bar->priv->need_timer = FALSE; path_bar->priv->timer = g_timeout_add (SCROLL_TIMEOUT, (GSourceFunc) nautilus_path_bar_scroll_timeout, path_bar); } else { retval = TRUE; } } return retval; } static void nautilus_path_bar_stop_scrolling (NautilusPathBar *path_bar) { if (path_bar->priv->timer) { g_source_remove (path_bar->priv->timer); path_bar->priv->timer = 0; path_bar->priv->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->priv->ignore_click = FALSE; if (widget == path_bar->priv->up_slider_button) { nautilus_path_bar_scroll_up (path_bar); } else { if (widget == path_bar->priv->down_slider_button) { nautilus_path_bar_scroll_down (path_bar); } } if (!path_bar->priv->timer) { path_bar->priv->need_timer = TRUE; path_bar->priv->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->priv->ignore_click = TRUE; nautilus_path_bar_stop_scrolling (path_bar); return FALSE; } /* Changes the icons wherever it is needed */ static void reload_icons (NautilusPathBar *path_bar) { GList *list; for (list = path_bar->priv->button_list; list; list = list->next) { ButtonData *button_data; button_data = BUTTON_DATA (list->data); if (button_data->type != NORMAL_BUTTON || button_data->is_root) { nautilus_path_bar_update_button_appearance (button_data); } } } /* 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")) { reload_icons (path_bar); } } static void nautilus_path_bar_check_icon_theme (NautilusPathBar *path_bar) { GtkSettings *settings; if (path_bar->priv->settings_signal_id) { return; } settings = gtk_settings_get_for_screen (gtk_widget_get_screen (GTK_WIDGET (path_bar))); path_bar->priv->settings_signal_id = g_signal_connect (settings, "notify", G_CALLBACK (settings_notify_cb), path_bar); reload_icons (path_bar); } /* Public functions and their helpers */ void nautilus_path_bar_clear_buttons (NautilusPathBar *path_bar) { while (path_bar->priv->button_list != NULL) { gtk_container_remove (GTK_CONTAINER (path_bar), BUTTON_DATA (path_bar->priv->button_list->data)->button); } path_bar->priv->first_scrolled_button = NULL; } static void button_clicked_cb (GtkWidget *button, gpointer data) { ButtonData *button_data; NautilusPathBar *path_bar; GList *button_list; button_data = BUTTON_DATA (data); if (button_data->ignore_changes) { return; } path_bar = NAUTILUS_PATH_BAR (gtk_widget_get_parent (button)); button_list = g_list_find (path_bar->priv->button_list, button_data); g_assert (button_list != NULL); gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (button), TRUE); g_signal_emit (path_bar, path_bar_signals [PATH_CLICKED], 0, button_data->path); } static gboolean button_event_cb (GtkWidget *button, GdkEventButton *event, gpointer data) { ButtonData *button_data; NautilusPathBar *path_bar; GList *button_list; button_data = BUTTON_DATA (data); path_bar = NAUTILUS_PATH_BAR (gtk_widget_get_parent (button)); if (event->type == GDK_BUTTON_PRESS) { g_object_set_data (G_OBJECT (button), "handle-button-release", GINT_TO_POINTER (TRUE)); } if (event->type == GDK_BUTTON_RELEASE && !GPOINTER_TO_UINT (g_object_get_data (G_OBJECT (button), "handle-button-release"))) { return FALSE; } button_list = g_list_find (path_bar->priv->button_list, button_data); g_assert (button_list != NULL); g_signal_emit (path_bar, path_bar_signals [PATH_EVENT], 0, button_data->path, event); return FALSE; } static void button_drag_begin_cb (GtkWidget *widget, GdkDragContext *drag_context, gpointer user_data) { g_object_set_data (G_OBJECT (widget), "handle-button-release", GINT_TO_POINTER (FALSE)); } static GIcon * get_gicon (ButtonData *button_data) { switch (button_data->type) { case ROOT_BUTTON: return g_themed_icon_new (NAUTILUS_ICON_FILESYSTEM); case HOME_BUTTON: return g_themed_icon_new (NAUTILUS_ICON_HOME); default: return NULL; } return NULL; } static void button_data_free (ButtonData *button_data) { g_object_unref (button_data->path); g_free (button_data->dir_name); if (button_data->custom_icon) { g_object_unref (button_data->custom_icon); } if (button_data->file != NULL) { g_signal_handler_disconnect (button_data->file, button_data->file_changed_signal_id); nautilus_file_monitor_remove (button_data->file, button_data); nautilus_file_unref (button_data->file); } g_free (button_data); } static void nautilus_path_bar_update_button_appearance (ButtonData *button_data) { const gchar *dir_name = get_dir_name (button_data); if (button_data->label != NULL) { char *markup; markup = g_markup_printf_escaped ("%s", dir_name); if (gtk_label_get_use_markup (GTK_LABEL (button_data->label))) { gtk_label_set_markup (GTK_LABEL (button_data->label), markup); } else { gtk_label_set_text (GTK_LABEL (button_data->label), dir_name); } gtk_label_set_markup (GTK_LABEL (button_data->bold_label), markup); g_free (markup); } if (button_data->custom_icon) { gtk_image_set_from_pixbuf (GTK_IMAGE (button_data->image), button_data->custom_icon); gtk_widget_show (GTK_WIDGET (button_data->image)); } else { GIcon *icon; icon = get_gicon (button_data); if (icon != NULL) { gtk_image_set_from_gicon (GTK_IMAGE (button_data->image), icon, GTK_ICON_SIZE_MENU); gtk_widget_show (GTK_WIDGET (button_data->image)); g_object_unref (icon); } else { gtk_widget_hide (GTK_WIDGET (button_data->image)); } } } static void nautilus_path_bar_update_button_state (ButtonData *button_data, gboolean current_dir) { if (button_data->label != NULL) { gtk_label_set_label (GTK_LABEL (button_data->label), NULL); gtk_label_set_label (GTK_LABEL (button_data->bold_label), NULL); gtk_label_set_use_markup (GTK_LABEL (button_data->label), current_dir); } nautilus_path_bar_update_button_appearance (button_data); 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 GMount * get_location_is_mounted_mount (GFile *location) { GVolumeMonitor *volume_monitor; GList *mounts, *l; GMount *mount, *result = NULL; GFile *root = NULL, *default_location = NULL; volume_monitor = g_volume_monitor_get (); mounts = g_volume_monitor_get_mounts (volume_monitor); for (l = mounts; l != NULL; l = l->next) { mount = l->data; if (g_mount_is_shadowed (mount)) { continue; } root = g_mount_get_root (mount); if (g_file_equal (location, root)) { result = g_object_ref (mount); break; } default_location = g_mount_get_default_location (mount); if (!g_file_equal (default_location, root) && g_file_equal (location, default_location)) { result = g_object_ref (mount); break; } } g_clear_object (&root); g_clear_object (&default_location); g_list_free_full (mounts, g_object_unref); return result; } static gboolean setup_file_path_mounted_mount (GFile *location, ButtonData *button_data) { NautilusIconInfo *info; GIcon *icon; GMount *mount = NULL; mount = get_location_is_mounted_mount (location); if (mount == NULL) { return FALSE; } icon = g_mount_get_icon (mount); if (icon == NULL) { icon = g_themed_icon_new (NAUTILUS_ICON_FOLDER); } info = nautilus_icon_info_lookup (icon, NAUTILUS_PATH_BAR_ICON_SIZE); button_data->custom_icon = nautilus_icon_info_get_pixbuf_at_size (info, NAUTILUS_PATH_BAR_ICON_SIZE); button_data->dir_name = g_mount_get_name (mount); button_data->type = MOUNT_BUTTON; button_data->is_root = TRUE; g_object_unref (icon); g_object_unref (info); g_object_unref (mount); return TRUE; } static void setup_button_type (ButtonData *button_data, NautilusPathBar *path_bar, GFile *location) { if (nautilus_is_root_directory (location)) { button_data->type = ROOT_BUTTON; } else if (nautilus_is_home_directory (location)) { button_data->type = HOME_BUTTON; button_data->is_root = TRUE; } else if (setup_file_path_mounted_mount (location, button_data)) { /* already setup */ } else { button_data->type = NORMAL_BUTTON; } } static void button_drag_data_get_cb (GtkWidget *widget, GdkDragContext *context, GtkSelectionData *selection_data, guint info, guint time_, gpointer user_data) { ButtonData *button_data; char *uri_list[2]; char *tmp; button_data = user_data; uri_list[0] = g_file_get_uri (button_data->path); uri_list[1] = NULL; if (info == NAUTILUS_ICON_DND_GNOME_ICON_LIST) { tmp = g_strdup_printf ("%s\r\n", uri_list[0]); gtk_selection_data_set (selection_data, gtk_selection_data_get_target (selection_data), 8, (const guchar *) tmp, strlen (tmp)); g_free (tmp); } else if (info == NAUTILUS_ICON_DND_URI_LIST) { gtk_selection_data_set_uris (selection_data, uri_list); } g_free (uri_list[0]); } static void setup_button_drag_source (ButtonData *button_data) { GtkTargetList *target_list; const GtkTargetEntry targets[] = { { NAUTILUS_ICON_DND_GNOME_ICON_LIST_TYPE, 0, NAUTILUS_ICON_DND_GNOME_ICON_LIST } }; gtk_drag_source_set (button_data->button, GDK_BUTTON1_MASK | GDK_BUTTON2_MASK, NULL, 0, GDK_ACTION_MOVE | GDK_ACTION_COPY | GDK_ACTION_LINK | GDK_ACTION_ASK); target_list = gtk_target_list_new (targets, G_N_ELEMENTS (targets)); gtk_target_list_add_uri_targets (target_list, NAUTILUS_ICON_DND_URI_LIST); gtk_drag_source_set_target_list (button_data->button, target_list); gtk_target_list_unref (target_list); g_signal_connect (button_data->button, "drag-data-get", G_CALLBACK (button_drag_data_get_cb), button_data); } static void button_data_file_changed (NautilusFile *file, ButtonData *button_data) { GFile *location, *current_location, *parent, *button_parent; ButtonData *current_button_data; char *display_name; NautilusPathBar *path_bar; gboolean renamed, child; path_bar = (NautilusPathBar *) gtk_widget_get_ancestor (button_data->button, NAUTILUS_TYPE_PATH_BAR); if (path_bar == NULL) { return; } g_assert (path_bar->priv->current_path != NULL); g_assert (path_bar->priv->current_button_data != NULL); current_button_data = path_bar->priv->current_button_data; location = nautilus_file_get_location (file); if (!g_file_equal (button_data->path, location)) { parent = g_file_get_parent (location); button_parent = g_file_get_parent (button_data->path); renamed = (parent != NULL && button_parent != NULL) && g_file_equal (parent, button_parent); if (parent != NULL) { g_object_unref (parent); } if (button_parent != NULL) { g_object_unref (button_parent); } if (renamed) { button_data->path = g_object_ref (location); } else { /* the file has been moved. * If it was below the currently displayed location, remove it. * If it was not below the currently displayed location, update the path bar */ child = g_file_has_prefix (button_data->path, path_bar->priv->current_path); if (child) { /* moved file inside current path hierarchy */ g_object_unref (location); location = g_file_get_parent (button_data->path); current_location = g_object_ref (path_bar->priv->current_path); } else { /* moved current path, or file outside current path hierarchy. * Update path bar to new locations. */ current_location = nautilus_file_get_location (current_button_data->file); } nautilus_path_bar_update_path (path_bar, location); nautilus_path_bar_set_path (path_bar, current_location); g_object_unref (location); g_object_unref (current_location); return; } } else if (nautilus_file_is_gone (file)) { gint idx, position; /* if the current or a parent location are gone, don't do anything, as the view * will get the event too and call us back. */ current_location = nautilus_file_get_location (current_button_data->file); if (g_file_has_prefix (location, current_location)) { /* remove this and the following buttons */ position = g_list_position (path_bar->priv->button_list, g_list_find (path_bar->priv->button_list, button_data)); if (position != -1) { for (idx = 0; idx <= position; idx++) { gtk_container_remove (GTK_CONTAINER (path_bar), BUTTON_DATA (path_bar->priv->button_list->data)->button); } } } g_object_unref (current_location); g_object_unref (location); return; } g_object_unref (location); /* MOUNTs use the GMount as the name, so don't update for those */ if (button_data->type != MOUNT_BUTTON) { display_name = nautilus_file_get_display_name (file); if (g_strcmp0 (display_name, button_data->dir_name) != 0) { g_free (button_data->dir_name); button_data->dir_name = g_strdup (display_name); } g_free (display_name); } nautilus_path_bar_update_button_appearance (button_data); } static ButtonData * make_button_data (NautilusPathBar *path_bar, NautilusFile *file, gboolean current_dir) { GFile *path; GtkWidget *child; ButtonData *button_data; path = nautilus_file_get_location (file); child = NULL; /* Is it a special button? */ button_data = g_new0 (ButtonData, 1); setup_button_type (button_data, path_bar, path); button_data->button = gtk_toggle_button_new (); gtk_button_set_focus_on_click (GTK_BUTTON (button_data->button), FALSE); gtk_widget_add_events (button_data->button, GDK_SCROLL_MASK); /* TODO update button type when xdg directories change */ button_data->image = gtk_image_new (); switch (button_data->type) { case ROOT_BUTTON: child = button_data->image; button_data->label = NULL; break; case HOME_BUTTON: case MOUNT_BUTTON: case NORMAL_BUTTON: default: button_data->label = gtk_label_new (NULL); child = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 2); gtk_box_pack_start (GTK_BOX (child), button_data->image, FALSE, FALSE, 0); gtk_box_pack_start (GTK_BOX (child), button_data->label, FALSE, FALSE, 0); break; } if (button_data->label != NULL) { gtk_label_set_ellipsize (GTK_LABEL (button_data->label), PANGO_ELLIPSIZE_MIDDLE); gtk_label_set_single_line_mode (GTK_LABEL (button_data->label), TRUE); button_data->bold_label = gtk_label_new (NULL); gtk_widget_set_no_show_all (button_data->bold_label, TRUE); gtk_label_set_single_line_mode (GTK_LABEL (button_data->bold_label), TRUE); gtk_box_pack_start (GTK_BOX (child), button_data->bold_label, FALSE, FALSE, 0); } if (button_data->path == NULL) { button_data->path = g_object_ref (path); } if (button_data->dir_name == NULL) { button_data->dir_name = nautilus_file_get_display_name (file); } if (button_data->file == NULL) { button_data->file = nautilus_file_ref (file); nautilus_file_monitor_add (button_data->file, button_data, NAUTILUS_FILE_ATTRIBUTES_FOR_ICON); button_data->file_changed_signal_id = g_signal_connect (button_data->file, "changed", G_CALLBACK (button_data_file_changed), button_data); } gtk_container_add (GTK_CONTAINER (button_data->button), child); gtk_widget_show_all (button_data->button); nautilus_path_bar_update_button_state (button_data, current_dir); g_signal_connect (button_data->button, "clicked", G_CALLBACK (button_clicked_cb), button_data); g_signal_connect (button_data->button, "button-press-event", G_CALLBACK (button_event_cb), button_data); g_signal_connect (button_data->button, "button-release-event", G_CALLBACK (button_event_cb), button_data); g_signal_connect (button_data->button, "drag-begin", G_CALLBACK (button_drag_begin_cb), button_data); g_object_weak_ref (G_OBJECT (button_data->button), (GWeakNotify) button_data_free, button_data); setup_button_drag_source (button_data); nautilus_drag_slot_proxy_init (button_data->button, button_data->file, NULL); g_object_unref (path); return button_data; } static gboolean nautilus_path_bar_check_parent_path (NautilusPathBar *path_bar, GFile *location, ButtonData **current_button_data) { GList *list; ButtonData *button_data, *current_data; gboolean is_active; current_data = NULL; for (list = path_bar->priv->button_list; list; list = list->next) { button_data = list->data; if (g_file_equal (location, button_data->path)) { current_data = button_data; is_active = TRUE; if (!gtk_widget_get_child_visible (current_data->button)) { path_bar->priv->first_scrolled_button = list; gtk_widget_queue_resize (GTK_WIDGET (path_bar)); } } else { is_active = FALSE; } nautilus_path_bar_update_button_state (button_data, is_active); } if (current_button_data != NULL) { *current_button_data = current_data; } return (current_data != NULL); } static void nautilus_path_bar_update_path (NautilusPathBar *path_bar, GFile *file_path) { NautilusFile *file, *parent_file; gboolean first_directory; GList *new_buttons, *l; ButtonData *button_data; g_return_if_fail (NAUTILUS_IS_PATH_BAR (path_bar)); g_return_if_fail (file_path != NULL); first_directory = TRUE; new_buttons = NULL; file = nautilus_file_get (file_path); gtk_widget_push_composite_child (); while (file != NULL) { parent_file = nautilus_file_get_parent (file); button_data = make_button_data (path_bar, file, first_directory); nautilus_file_unref (file); if (first_directory) { first_directory = FALSE; } new_buttons = g_list_prepend (new_buttons, button_data); if (parent_file != NULL && button_data->is_root) { break; } file = parent_file; } nautilus_path_bar_clear_buttons (path_bar); path_bar->priv->button_list = g_list_reverse (new_buttons); for (l = path_bar->priv->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 (); child_ordering_changed (path_bar); } void nautilus_path_bar_set_path (NautilusPathBar *path_bar, GFile *file_path) { ButtonData *button_data; g_return_if_fail (NAUTILUS_IS_PATH_BAR (path_bar)); g_return_if_fail (file_path != NULL); /* 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, &button_data)) { nautilus_path_bar_update_path (path_bar, file_path); button_data = g_list_nth_data (path_bar->priv->button_list, 0); } if (path_bar->priv->current_path != NULL) { g_object_unref (path_bar->priv->current_path); } path_bar->priv->current_path = g_object_ref (file_path); path_bar->priv->current_button_data = button_data; }