/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */ /* caja-bookmark.c - implementation of individual bookmarks. Copyright (C) 1999, 2000 Eazel, Inc. The Mate 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. The Mate 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 the Mate Library; see the file COPYING.LIB. If not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. Authors: John Sullivan */ #include #include "caja-bookmark.h" #include "caja-file.h" #include #include #include #include #include #include #include #include enum { APPEARANCE_CHANGED, CONTENTS_CHANGED, LAST_SIGNAL }; #define ELLIPSISED_MENU_ITEM_MIN_CHARS 32 static guint signals[LAST_SIGNAL] = { 0 }; struct CajaBookmarkDetails { char *name; gboolean has_custom_name; GFile *location; GIcon *icon; CajaFile *file; char *scroll_file; }; static void caja_bookmark_connect_file (CajaBookmark *file); static void caja_bookmark_disconnect_file (CajaBookmark *file); G_DEFINE_TYPE (CajaBookmark, caja_bookmark, G_TYPE_OBJECT); /* GObject methods. */ static void caja_bookmark_finalize (GObject *object) { CajaBookmark *bookmark; g_assert (CAJA_IS_BOOKMARK (object)); bookmark = CAJA_BOOKMARK (object); caja_bookmark_disconnect_file (bookmark); g_free (bookmark->details->name); g_object_unref (bookmark->details->location); if (bookmark->details->icon) { g_object_unref (bookmark->details->icon); } g_free (bookmark->details->scroll_file); g_free (bookmark->details); G_OBJECT_CLASS (caja_bookmark_parent_class)->finalize (object); } /* Initialization. */ static void caja_bookmark_class_init (CajaBookmarkClass *class) { G_OBJECT_CLASS (class)->finalize = caja_bookmark_finalize; signals[APPEARANCE_CHANGED] = g_signal_new ("appearance_changed", G_TYPE_FROM_CLASS (class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (CajaBookmarkClass, appearance_changed), NULL, NULL, g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0); signals[CONTENTS_CHANGED] = g_signal_new ("contents_changed", G_TYPE_FROM_CLASS (class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (CajaBookmarkClass, contents_changed), NULL, NULL, g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0); } static void caja_bookmark_init (CajaBookmark *bookmark) { bookmark->details = g_new0 (CajaBookmarkDetails, 1); } /** * caja_bookmark_compare_with: * * Check whether two bookmarks are considered identical. * @a: first CajaBookmark*. * @b: second CajaBookmark*. * * Return value: 0 if @a and @b have same name and uri, 1 otherwise * (GCompareFunc style) **/ int caja_bookmark_compare_with (gconstpointer a, gconstpointer b) { CajaBookmark *bookmark_a; CajaBookmark *bookmark_b; g_return_val_if_fail (CAJA_IS_BOOKMARK (a), 1); g_return_val_if_fail (CAJA_IS_BOOKMARK (b), 1); bookmark_a = CAJA_BOOKMARK (a); bookmark_b = CAJA_BOOKMARK (b); if (g_strcmp0 (bookmark_a->details->name, bookmark_b->details->name) != 0) { return 1; } if (!g_file_equal (bookmark_a->details->location, bookmark_b->details->location)) { return 1; } return 0; } /** * caja_bookmark_compare_uris: * * Check whether the uris of two bookmarks are for the same location. * @a: first CajaBookmark*. * @b: second CajaBookmark*. * * Return value: 0 if @a and @b have matching uri, 1 otherwise * (GCompareFunc style) **/ int caja_bookmark_compare_uris (gconstpointer a, gconstpointer b) { CajaBookmark *bookmark_a; CajaBookmark *bookmark_b; g_return_val_if_fail (CAJA_IS_BOOKMARK (a), 1); g_return_val_if_fail (CAJA_IS_BOOKMARK (b), 1); bookmark_a = CAJA_BOOKMARK (a); bookmark_b = CAJA_BOOKMARK (b); return !g_file_equal (bookmark_a->details->location, bookmark_b->details->location); } CajaBookmark * caja_bookmark_copy (CajaBookmark *bookmark) { g_return_val_if_fail (CAJA_IS_BOOKMARK (bookmark), NULL); return caja_bookmark_new ( bookmark->details->location, bookmark->details->name, bookmark->details->has_custom_name, bookmark->details->icon); } char * caja_bookmark_get_name (CajaBookmark *bookmark) { g_return_val_if_fail(CAJA_IS_BOOKMARK (bookmark), NULL); return g_strdup (bookmark->details->name); } gboolean caja_bookmark_get_has_custom_name (CajaBookmark *bookmark) { g_return_val_if_fail(CAJA_IS_BOOKMARK (bookmark), FALSE); return (bookmark->details->has_custom_name); } GdkPixbuf * caja_bookmark_get_pixbuf (CajaBookmark *bookmark, GtkIconSize stock_size) { GdkPixbuf *result; GIcon *icon; CajaIconInfo *info; int pixel_size; g_return_val_if_fail (CAJA_IS_BOOKMARK (bookmark), NULL); icon = caja_bookmark_get_icon (bookmark); if (icon == NULL) { return NULL; } pixel_size = caja_get_icon_size_for_stock_size (stock_size); info = caja_icon_info_lookup (icon, pixel_size); result = caja_icon_info_get_pixbuf_at_size (info, pixel_size); g_object_unref (info); g_object_unref (icon); return result; } GIcon * caja_bookmark_get_icon (CajaBookmark *bookmark) { g_return_val_if_fail (CAJA_IS_BOOKMARK (bookmark), NULL); /* Try to connect a file in case file exists now but didn't earlier. */ caja_bookmark_connect_file (bookmark); if (bookmark->details->icon) { return g_object_ref (bookmark->details->icon); } return NULL; } GFile * caja_bookmark_get_location (CajaBookmark *bookmark) { g_return_val_if_fail(CAJA_IS_BOOKMARK (bookmark), NULL); /* Try to connect a file in case file exists now but didn't earlier. * This allows a bookmark to update its image properly in the case * where a new file appears with the same URI as a previously-deleted * file. Calling connect_file here means that attempts to activate the * bookmark will update its image if possible. */ caja_bookmark_connect_file (bookmark); return g_object_ref (bookmark->details->location); } char * caja_bookmark_get_uri (CajaBookmark *bookmark) { GFile *file; char *uri; file = caja_bookmark_get_location (bookmark); uri = g_file_get_uri (file); g_object_unref (file); return uri; } /** * caja_bookmark_set_name: * * Change the user-displayed name of a bookmark. * @new_name: The new user-displayed name for this bookmark, mustn't be NULL. * * Returns: TRUE if the name changed else FALSE. **/ gboolean caja_bookmark_set_name (CajaBookmark *bookmark, const char *new_name) { g_return_val_if_fail (new_name != NULL, FALSE); g_return_val_if_fail (CAJA_IS_BOOKMARK (bookmark), FALSE); if (g_strcmp0 (new_name, bookmark->details->name) == 0) { return FALSE; } else if (!bookmark->details->has_custom_name) { bookmark->details->has_custom_name = TRUE; } g_free (bookmark->details->name); bookmark->details->name = g_strdup (new_name); g_signal_emit (bookmark, signals[APPEARANCE_CHANGED], 0); if (bookmark->details->has_custom_name) { g_signal_emit (bookmark, signals[CONTENTS_CHANGED], 0); } return TRUE; } static gboolean caja_bookmark_icon_is_different (CajaBookmark *bookmark, GIcon *new_icon) { g_assert (CAJA_IS_BOOKMARK (bookmark)); g_assert (new_icon != NULL); if (bookmark->details->icon == NULL) { return TRUE; } return !g_icon_equal (bookmark->details->icon, new_icon) != 0; } /** * Update icon if there's a better one available. * Return TRUE if the icon changed. */ static gboolean caja_bookmark_update_icon (CajaBookmark *bookmark) { GIcon *new_icon; g_assert (CAJA_IS_BOOKMARK (bookmark)); if (bookmark->details->file == NULL) { return FALSE; } if (!caja_file_is_local (bookmark->details->file)) { /* never update icons for remote bookmarks */ return FALSE; } if (!caja_file_is_not_yet_confirmed (bookmark->details->file) && caja_file_check_if_ready (bookmark->details->file, CAJA_FILE_ATTRIBUTES_FOR_ICON)) { new_icon = caja_file_get_gicon (bookmark->details->file, 0); if (caja_bookmark_icon_is_different (bookmark, new_icon)) { if (bookmark->details->icon) { g_object_unref (bookmark->details->icon); } bookmark->details->icon = new_icon; return TRUE; } g_object_unref (new_icon); } return FALSE; } static void bookmark_file_changed_callback (CajaFile *file, CajaBookmark *bookmark) { GFile *location; gboolean should_emit_appearance_changed_signal; gboolean should_emit_contents_changed_signal; char *display_name; g_assert (CAJA_IS_FILE (file)); g_assert (CAJA_IS_BOOKMARK (bookmark)); g_assert (file == bookmark->details->file); should_emit_appearance_changed_signal = FALSE; should_emit_contents_changed_signal = FALSE; location = caja_file_get_location (file); if (!g_file_equal (bookmark->details->location, location) && !caja_file_is_in_trash (file)) { g_object_unref (bookmark->details->location); bookmark->details->location = location; should_emit_contents_changed_signal = TRUE; } else { g_object_unref (location); } if (caja_file_is_gone (file) || caja_file_is_in_trash (file)) { /* The file we were monitoring has been trashed, deleted, * or moved in a way that we didn't notice. We should make * a spanking new CajaFile object for this * location so if a new file appears in this place * we will notice. However, we can't immediately do so * because creating a new CajaFile directly as a result * of noticing a file goes away may trigger i/o on that file * again, noticeing it is gone, leading to a loop. * So, the new CajaFile is created when the bookmark * is used again. However, this is not really a problem, as * we don't want to change the icon or anything about the * bookmark just because its not there anymore. */ caja_bookmark_disconnect_file (bookmark); } else if (caja_bookmark_update_icon (bookmark)) { /* File hasn't gone away, but it has changed * in a way that affected its icon. */ should_emit_appearance_changed_signal = TRUE; } if (!bookmark->details->has_custom_name) { display_name = caja_file_get_display_name (file); if (g_strcmp0 (bookmark->details->name, display_name) != 0) { g_free (bookmark->details->name); bookmark->details->name = display_name; should_emit_appearance_changed_signal = TRUE; } else { g_free (display_name); } } if (should_emit_appearance_changed_signal) { g_signal_emit (bookmark, signals[APPEARANCE_CHANGED], 0); } if (should_emit_contents_changed_signal) { g_signal_emit (bookmark, signals[CONTENTS_CHANGED], 0); } } /** * caja_bookmark_set_icon_to_default: * * Reset the icon to either the missing bookmark icon or the generic * bookmark icon, depending on whether the file still exists. */ static void caja_bookmark_set_icon_to_default (CajaBookmark *bookmark) { GIcon *icon, *emblemed_icon, *folder; GEmblem *emblem; if (bookmark->details->icon) { g_object_unref (bookmark->details->icon); } folder = g_themed_icon_new (CAJA_ICON_FOLDER); if (caja_bookmark_uri_known_not_to_exist (bookmark)) { icon = g_themed_icon_new (GTK_STOCK_DIALOG_WARNING); emblem = g_emblem_new (icon); emblemed_icon = g_emblemed_icon_new (folder, emblem); g_object_unref (emblem); g_object_unref (icon); g_object_unref (folder); folder = emblemed_icon; } bookmark->details->icon = folder; } static void caja_bookmark_disconnect_file (CajaBookmark *bookmark) { g_assert (CAJA_IS_BOOKMARK (bookmark)); if (bookmark->details->file != NULL) { g_signal_handlers_disconnect_by_func (bookmark->details->file, G_CALLBACK (bookmark_file_changed_callback), bookmark); caja_file_unref (bookmark->details->file); bookmark->details->file = NULL; } if (bookmark->details->icon != NULL) { g_object_unref (bookmark->details->icon); bookmark->details->icon = NULL; } } static void caja_bookmark_connect_file (CajaBookmark *bookmark) { char *display_name; g_assert (CAJA_IS_BOOKMARK (bookmark)); if (bookmark->details->file != NULL) { return; } if (!caja_bookmark_uri_known_not_to_exist (bookmark)) { bookmark->details->file = caja_file_get (bookmark->details->location); g_assert (!caja_file_is_gone (bookmark->details->file)); g_signal_connect_object (bookmark->details->file, "changed", G_CALLBACK (bookmark_file_changed_callback), bookmark, 0); } /* Set icon based on available information; don't force network i/o * to get any currently unknown information. */ if (!caja_bookmark_update_icon (bookmark)) { if (bookmark->details->icon == NULL || bookmark->details->file == NULL) { caja_bookmark_set_icon_to_default (bookmark); } } if (!bookmark->details->has_custom_name && bookmark->details->file && caja_file_check_if_ready (bookmark->details->file, CAJA_FILE_ATTRIBUTE_INFO)) { display_name = caja_file_get_display_name (bookmark->details->file); if (g_strcmp0 (bookmark->details->name, display_name) != 0) { g_free (bookmark->details->name); bookmark->details->name = display_name; } else { g_free (display_name); } } } CajaBookmark * caja_bookmark_new (GFile *location, const char *name, gboolean has_custom_name, GIcon *icon) { CajaBookmark *new_bookmark; new_bookmark = CAJA_BOOKMARK (g_object_new (CAJA_TYPE_BOOKMARK, NULL)); g_object_ref_sink (new_bookmark); new_bookmark->details->name = g_strdup (name); new_bookmark->details->location = g_object_ref (location); new_bookmark->details->has_custom_name = has_custom_name; if (icon) { new_bookmark->details->icon = g_object_ref (icon); } caja_bookmark_connect_file (new_bookmark); return new_bookmark; } static GtkWidget * create_image_widget_for_bookmark (CajaBookmark *bookmark) { GdkPixbuf *pixbuf; GtkWidget *widget; pixbuf = caja_bookmark_get_pixbuf (bookmark, GTK_ICON_SIZE_MENU); if (pixbuf == NULL) { return NULL; } widget = gtk_image_new_from_pixbuf (pixbuf); g_object_unref (pixbuf); return widget; } /** * caja_bookmark_menu_item_new: * * Return a menu item representing a bookmark. * @bookmark: The bookmark the menu item represents. * Return value: A newly-created bookmark, not yet shown. **/ GtkWidget * caja_bookmark_menu_item_new (CajaBookmark *bookmark) { GtkWidget *menu_item; GtkWidget *image_widget; GtkLabel *label; menu_item = gtk_image_menu_item_new_with_label (bookmark->details->name); label = GTK_LABEL (gtk_bin_get_child (GTK_BIN (menu_item))); gtk_label_set_use_underline (label, FALSE); gtk_label_set_ellipsize (label, PANGO_ELLIPSIZE_END); gtk_label_set_max_width_chars (label, ELLIPSISED_MENU_ITEM_MIN_CHARS); image_widget = create_image_widget_for_bookmark (bookmark); if (image_widget != NULL) { gtk_widget_show (image_widget); gtk_image_menu_item_set_image (GTK_IMAGE_MENU_ITEM (menu_item), image_widget); } return menu_item; } gboolean caja_bookmark_uri_known_not_to_exist (CajaBookmark *bookmark) { char *path_name; gboolean exists; /* Convert to a path, returning FALSE if not local. */ if (!g_file_is_native (bookmark->details->location)) { return FALSE; } path_name = g_file_get_path (bookmark->details->location); /* Now check if the file exists (sync. call OK because it is local). */ exists = g_file_test (path_name, G_FILE_TEST_EXISTS); g_free (path_name); return !exists; } void caja_bookmark_set_scroll_pos (CajaBookmark *bookmark, const char *uri) { g_free (bookmark->details->scroll_file); bookmark->details->scroll_file = g_strdup (uri); } char * caja_bookmark_get_scroll_pos (CajaBookmark *bookmark) { return g_strdup (bookmark->details->scroll_file); }