Rework the way autocompletion is initiated
Signed-off-by: Federico Mena Quintero <federico@gnu.org> svn path=/trunk/; revision=19805
This commit is contained in:
Federico Mena Quintero
Federico Mena Quintero
parent
d64fa89eec
commit
5f32bf06e0
@ -40,6 +40,13 @@ struct _GtkFileChooserEntryClass
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GtkEntryClass parent_class;
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};
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/* Action to take when the current folder finishes loading (for explicit or automatic completion) */
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typedef enum {
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LOAD_COMPLETE_NOTHING,
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LOAD_COMPLETE_AUTOCOMPLETE,
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LOAD_COMPLETE_INSERT_PREFIX
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} LoadCompleteAction;
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struct _GtkFileChooserEntry
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{
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GtkEntry parent_instance;
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@ -51,13 +58,14 @@ struct _GtkFileChooserEntry
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gchar *file_part;
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gint file_part_pos;
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guint check_completion_idle;
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guint load_directory_idle;
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/* Folder being loaded or already loaded */
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GtkFilePath *current_folder_path;
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GtkFileFolder *current_folder;
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GtkFileSystemHandle *load_folder_handle;
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LoadCompleteAction load_complete_action;
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GtkListStore *completion_store;
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guint has_completion : 1;
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@ -243,12 +251,6 @@ gtk_file_chooser_entry_dispose (GObject *object)
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chooser_entry->check_completion_idle = 0;
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}
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if (chooser_entry->load_directory_idle)
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{
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g_source_remove (chooser_entry->load_directory_idle);
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chooser_entry->load_directory_idle = 0;
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}
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G_OBJECT_CLASS (_gtk_file_chooser_entry_parent_class)->dispose (object);
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}
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@ -657,78 +659,6 @@ files_deleted_cb (GtkFileSystem *file_system,
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/* FIXME: gravy... */
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}
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static void
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load_directory_get_folder_callback (GtkFileSystemHandle *handle,
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GtkFileFolder *folder,
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const GError *error,
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gpointer data)
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{
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gboolean cancelled = handle->cancelled;
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GtkFileChooserEntry *chooser_entry = data;
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if (handle != chooser_entry->load_folder_handle)
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goto out;
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chooser_entry->load_folder_handle = NULL;
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if (cancelled || error)
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goto out;
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chooser_entry->current_folder = folder;
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g_signal_connect (chooser_entry->current_folder, "files-added",
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G_CALLBACK (files_added_cb), chooser_entry);
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g_signal_connect (chooser_entry->current_folder, "files-removed",
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G_CALLBACK (files_deleted_cb), chooser_entry);
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chooser_entry->completion_store = gtk_list_store_new (N_COLUMNS,
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G_TYPE_STRING,
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GTK_TYPE_FILE_PATH);
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gtk_entry_completion_set_model (gtk_entry_get_completion (GTK_ENTRY (chooser_entry)),
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GTK_TREE_MODEL (chooser_entry->completion_store));
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out:
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g_object_unref (chooser_entry);
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g_object_unref (handle);
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}
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static gboolean
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load_directory_callback (GtkFileChooserEntry *chooser_entry)
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{
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GDK_THREADS_ENTER ();
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chooser_entry->load_directory_idle = 0;
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/* guard against bogus settings*/
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if (chooser_entry->current_folder_path == NULL ||
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chooser_entry->file_system == NULL)
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goto done;
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if (chooser_entry->current_folder != NULL)
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{
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g_warning ("idle activate multiple times without clearing the folder object first.");
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goto done;
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}
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g_assert (chooser_entry->completion_store == NULL);
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/* Load the folder */
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if (chooser_entry->load_folder_handle)
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gtk_file_system_cancel_operation (chooser_entry->load_folder_handle);
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chooser_entry->load_folder_handle =
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gtk_file_system_get_folder (chooser_entry->file_system,
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chooser_entry->current_folder_path,
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GTK_FILE_INFO_DISPLAY_NAME | GTK_FILE_INFO_IS_FOLDER,
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load_directory_get_folder_callback,
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g_object_ref (chooser_entry));
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done:
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GDK_THREADS_LEAVE ();
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return FALSE;
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}
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static void
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gtk_file_chooser_entry_do_insert_text (GtkEditable *editable,
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const gchar *new_text,
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@ -818,20 +748,81 @@ gtk_file_chooser_entry_activate (GtkEntry *entry)
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GTK_ENTRY_CLASS (_gtk_file_chooser_entry_parent_class)->activate (entry);
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}
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/* This will see if a path typed by the user is new, and installs the loading
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* idle if it is.
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*/
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static void
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gtk_file_chooser_entry_maybe_update_directory (GtkFileChooserEntry *chooser_entry,
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load_directory_get_folder_callback (GtkFileSystemHandle *handle,
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GtkFileFolder *folder,
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const GError *error,
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gpointer data)
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{
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gboolean cancelled = handle->cancelled;
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GtkFileChooserEntry *chooser_entry = data;
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if (handle != chooser_entry->load_folder_handle)
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goto out;
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chooser_entry->load_folder_handle = NULL;
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if (cancelled || error)
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goto out;
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/* FIXME: connect to "finished-loading". In that callback, see our
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* load_complete_action and do the appropriate thing.
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*
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* Do we need to populate the completion store here? (O(n^2))
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* Maybe we should wait until the folder is finished loading.
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*/
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chooser_entry->current_folder = folder;
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g_signal_connect (chooser_entry->current_folder, "files-added",
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G_CALLBACK (files_added_cb), chooser_entry);
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g_signal_connect (chooser_entry->current_folder, "files-removed",
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G_CALLBACK (files_deleted_cb), chooser_entry);
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chooser_entry->completion_store = gtk_list_store_new (N_COLUMNS,
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G_TYPE_STRING,
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GTK_TYPE_FILE_PATH);
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gtk_entry_completion_set_model (gtk_entry_get_completion (GTK_ENTRY (chooser_entry)),
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GTK_TREE_MODEL (chooser_entry->completion_store));
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out:
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g_object_unref (chooser_entry);
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g_object_unref (handle);
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}
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static void
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load_current_folder (GtkFileChooserEntry *chooser_entry)
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{
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if (chooser_entry->current_folder_path == NULL ||
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chooser_entry->file_system == NULL)
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return;
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g_assert (chooser_entry->current_folder == NULL);
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g_assert (chooser_entry->completion_store == NULL);
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g_assert (chooser_entry->load_folder_handle == NULL);
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chooser_entry->load_folder_handle =
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gtk_file_system_get_folder (chooser_entry->file_system,
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chooser_entry->current_folder_path,
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GTK_FILE_INFO_DISPLAY_NAME | GTK_FILE_INFO_IS_FOLDER,
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load_directory_get_folder_callback,
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g_object_ref (chooser_entry));
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}
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static void
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reload_current_folder (GtkFileChooserEntry *chooser_entry,
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GtkFilePath *folder_path,
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gboolean force_reload)
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{
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gboolean queue_idle = FALSE;
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gboolean reload = FALSE;
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if (chooser_entry->current_folder_path)
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{
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if (gtk_file_path_compare (folder_path, chooser_entry->current_folder_path) != 0 || force_reload)
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if ((folder_path && gtk_file_path_compare (folder_path, chooser_entry->current_folder_path) != 0)
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|| force_reload)
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{
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reload = TRUE;
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/* We changed our current directory. We need to clear out the old
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* directory information.
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*/
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@ -842,9 +833,16 @@ gtk_file_chooser_entry_maybe_update_directory (GtkFileChooserEntry *chooser_entr
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g_signal_handlers_disconnect_by_func (chooser_entry->current_folder,
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G_CALLBACK (files_deleted_cb), chooser_entry);
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if (chooser_entry->load_folder_handle)
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{
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gtk_file_system_cancel_operation (chooser_entry->load_folder_handle);
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chooser_entry->load_folder_handle = NULL;
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}
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g_object_unref (chooser_entry->current_folder);
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chooser_entry->current_folder = NULL;
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}
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if (chooser_entry->completion_store)
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{
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gtk_entry_completion_set_model (gtk_entry_get_completion (GTK_ENTRY (chooser_entry)), NULL);
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@ -852,37 +850,28 @@ gtk_file_chooser_entry_maybe_update_directory (GtkFileChooserEntry *chooser_entr
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chooser_entry->completion_store = NULL;
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}
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queue_idle = TRUE;
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}
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gtk_file_path_free (chooser_entry->current_folder_path);
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chooser_entry->current_folder_path = gtk_file_path_copy (folder_path);
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}
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}
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else
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{
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queue_idle = TRUE;
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reload = TRUE;
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if (reload)
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load_current_folder (chooser_entry);
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}
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chooser_entry->current_folder_path = folder_path;
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if (queue_idle && chooser_entry->load_directory_idle == 0)
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chooser_entry->load_directory_idle =
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idle_add (chooser_entry, G_CALLBACK (load_directory_callback));
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}
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static void
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gtk_file_chooser_entry_changed (GtkEditable *editable)
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refresh_current_folder_and_file_part (GtkFileChooserEntry *chooser_entry)
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{
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GtkFileChooserEntry *chooser_entry = GTK_FILE_CHOOSER_ENTRY (editable);
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const gchar *text_up_to_cursor;
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GtkEditable *editable;
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gchar *text_up_to_cursor;
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GtkFilePath *folder_path;
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gchar *file_part;
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gsize total_len, file_part_len;
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gint file_part_pos;
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if (chooser_entry->in_change)
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return;
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editable = GTK_EDITABLE (chooser_entry);
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text_up_to_cursor = gtk_editable_get_chars (editable, 0, gtk_editable_get_position (editable));
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@ -913,7 +902,56 @@ gtk_file_chooser_entry_changed (GtkEditable *editable)
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chooser_entry->file_part = file_part;
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chooser_entry->file_part_pos = file_part_pos;
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gtk_file_chooser_entry_maybe_update_directory (chooser_entry, folder_path, file_part_pos == -1);
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reload_current_folder (chooser_entry, folder_path, file_part_pos == -1);
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gtk_file_path_free (folder_path);
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}
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static void
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autocomplete (GtkFileChooserEntry *chooser_entry)
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{
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g_assert (chooser_entry->current_folder != NULL);
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g_assert (gtk_file_folder_is_finished_loading (chooser_entry->current_folder));
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/* FIXME */
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}
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static void
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start_autocompletion (GtkFileChooserEntry *chooser_entry)
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{
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refresh_current_folder_and_file_part (chooser_entry);
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if (!chooser_entry->current_folder)
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{
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/* We don't beep or anything, since this is autocompletion - the user
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* didn't request any action explicitly.
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*/
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return;
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}
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if (gtk_file_folder_is_finished_loading (chooser_entry->current_folder))
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autocomplete (chooser_entry);
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else
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chooser_entry->load_complete_action = LOAD_COMPLETE_AUTOCOMPLETE;
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}
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static void
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gtk_file_chooser_entry_changed (GtkEditable *editable)
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{
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GtkFileChooserEntry *chooser_entry = GTK_FILE_CHOOSER_ENTRY (editable);
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if (chooser_entry->in_change)
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return;
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chooser_entry->load_complete_action = LOAD_COMPLETE_NOTHING;
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if ((chooser_entry->action == GTK_FILE_CHOOSER_ACTION_OPEN
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|| chooser_entry->action == GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER)
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&& gtk_editable_get_position (GTK_EDITABLE (chooser_entry)) == GTK_ENTRY (chooser_entry)->text_length)
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start_autocompletion (chooser_entry);
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/* FIXME: see when the cursor changes (see GtkEditable::set_position and GtkEntry::move_cursor).
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* When the cursor changes, cancel the load_complete_action.
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*/
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}
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static void
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