+
+
+static gint
+gtk_entry_completion_timeout (gpointer data)
+{
+ GtkEntryCompletion *completion = GTK_ENTRY_COMPLETION (data);
+
+ completion->priv->completion_timeout = 0;
+
+ if (completion->priv->filter_model &&
+ g_utf8_strlen (gtk_entry_get_text (GTK_ENTRY (completion->priv->entry)), -1)
+ >= completion->priv->minimum_key_length)
+ {
+ gint matches;
+ gint actions;
+ GtkTreeSelection *s;
+ gboolean popup_single;
+
+ gtk_entry_completion_complete (completion);
+ matches = gtk_tree_model_iter_n_children (GTK_TREE_MODEL (completion->priv->filter_model), NULL);
+ gtk_tree_selection_unselect_all (gtk_tree_view_get_selection (GTK_TREE_VIEW (completion->priv->tree_view)));
+
+ s = gtk_tree_view_get_selection (GTK_TREE_VIEW (completion->priv->action_view));
+
+ gtk_tree_selection_unselect_all (s);
+
+ actions = gtk_tree_model_iter_n_children (GTK_TREE_MODEL (completion->priv->actions), NULL);
+
+ g_object_get (completion, "popup-single-match", &popup_single, NULL);
+ if ((matches > (popup_single ? 0: 1)) || actions > 0)
+ {
+ if (gtk_widget_get_visible (completion->priv->popup_window))
+ _gtk_entry_completion_resize_popup (completion);
+ else
+ gtk_entry_completion_popup (completion);
+ }
+ else
+ _gtk_entry_completion_popdown (completion);
+ }
+ else if (gtk_widget_get_visible (completion->priv->popup_window))
+ _gtk_entry_completion_popdown (completion);
+
+ return FALSE;
+}
+
+static inline gboolean
+keyval_is_cursor_move (guint keyval)
+{
+ if (keyval == GDK_KEY_Up || keyval == GDK_KEY_KP_Up)
+ return TRUE;
+
+ if (keyval == GDK_KEY_Down || keyval == GDK_KEY_KP_Down)
+ return TRUE;
+
+ if (keyval == GDK_KEY_Page_Up)
+ return TRUE;
+
+ if (keyval == GDK_KEY_Page_Down)
+ return TRUE;
+
+ return FALSE;
+}
+
+static gboolean
+gtk_entry_completion_key_press (GtkWidget *widget,
+ GdkEventKey *event,
+ gpointer user_data)
+{
+ gint matches, actions = 0;
+ GtkEntryCompletion *completion = GTK_ENTRY_COMPLETION (user_data);
+
+ if (!completion->priv->popup_completion)
+ return FALSE;
+
+ if (event->keyval == GDK_KEY_Return ||
+ event->keyval == GDK_KEY_KP_Enter ||
+ event->keyval == GDK_KEY_ISO_Enter ||
+ event->keyval == GDK_KEY_Escape)
+ {
+ if (completion && completion->priv->completion_timeout)
+ {
+ g_source_remove (completion->priv->completion_timeout);
+ completion->priv->completion_timeout = 0;
+ }
+ }
+
+ if (!gtk_widget_get_mapped (completion->priv->popup_window))
+ return FALSE;
+
+ matches = gtk_tree_model_iter_n_children (GTK_TREE_MODEL (completion->priv->filter_model), NULL);
+
+ if (completion->priv->actions)
+ actions = gtk_tree_model_iter_n_children (GTK_TREE_MODEL (completion->priv->actions), NULL);
+
+ if (keyval_is_cursor_move (event->keyval))
+ {
+ GtkTreePath *path = NULL;
+
+ if (event->keyval == GDK_KEY_Up || event->keyval == GDK_KEY_KP_Up)
+ {
+ if (completion->priv->current_selected < 0)
+ completion->priv->current_selected = matches + actions - 1;
+ else
+ completion->priv->current_selected--;
+ }
+ else if (event->keyval == GDK_KEY_Down || event->keyval == GDK_KEY_KP_Down)
+ {
+ if (completion->priv->current_selected < matches + actions - 1)
+ completion->priv->current_selected++;
+ else
+ completion->priv->current_selected = -1;
+ }
+ else if (event->keyval == GDK_KEY_Page_Up)
+ {
+ if (completion->priv->current_selected < 0)
+ completion->priv->current_selected = matches + actions - 1;
+ else if (completion->priv->current_selected == 0)
+ completion->priv->current_selected = -1;
+ else if (completion->priv->current_selected < matches)
+ {
+ completion->priv->current_selected -= PAGE_STEP;
+ if (completion->priv->current_selected < 0)
+ completion->priv->current_selected = 0;
+ }
+ else
+ {
+ completion->priv->current_selected -= PAGE_STEP;
+ if (completion->priv->current_selected < matches - 1)
+ completion->priv->current_selected = matches - 1;
+ }
+ }
+ else if (event->keyval == GDK_KEY_Page_Down)
+ {
+ if (completion->priv->current_selected < 0)
+ completion->priv->current_selected = 0;
+ else if (completion->priv->current_selected < matches - 1)
+ {
+ completion->priv->current_selected += PAGE_STEP;
+ if (completion->priv->current_selected > matches - 1)
+ completion->priv->current_selected = matches - 1;
+ }
+ else if (completion->priv->current_selected == matches + actions - 1)
+ {
+ completion->priv->current_selected = -1;
+ }
+ else
+ {
+ completion->priv->current_selected += PAGE_STEP;
+ if (completion->priv->current_selected > matches + actions - 1)
+ completion->priv->current_selected = matches + actions - 1;
+ }
+ }
+
+ if (completion->priv->current_selected < 0)
+ {
+ gtk_tree_selection_unselect_all (gtk_tree_view_get_selection (GTK_TREE_VIEW (completion->priv->tree_view)));
+ gtk_tree_selection_unselect_all (gtk_tree_view_get_selection (GTK_TREE_VIEW (completion->priv->action_view)));
+
+ if (completion->priv->inline_selection &&
+ completion->priv->completion_prefix)
+ {
+ gtk_entry_set_text (GTK_ENTRY (completion->priv->entry),
+ completion->priv->completion_prefix);
+ gtk_editable_set_position (GTK_EDITABLE (widget), -1);
+ }
+ }
+ else if (completion->priv->current_selected < matches)
+ {
+ gtk_tree_selection_unselect_all (gtk_tree_view_get_selection (GTK_TREE_VIEW (completion->priv->action_view)));
+
+ path = gtk_tree_path_new_from_indices (completion->priv->current_selected, -1);
+ gtk_tree_view_set_cursor (GTK_TREE_VIEW (completion->priv->tree_view),
+ path, NULL, FALSE);
+
+ if (completion->priv->inline_selection)
+ {
+
+ GtkTreeIter iter;
+ GtkTreeIter child_iter;
+ GtkTreeModel *model = NULL;
+ GtkTreeSelection *sel;
+ gboolean entry_set;
+
+ sel = gtk_tree_view_get_selection (GTK_TREE_VIEW (completion->priv->tree_view));
+ if (!gtk_tree_selection_get_selected (sel, &model, &iter))
+ return FALSE;
+ gtk_tree_model_filter_convert_iter_to_child_iter (GTK_TREE_MODEL_FILTER (model), &child_iter, &iter);
+ model = gtk_tree_model_filter_get_model (GTK_TREE_MODEL_FILTER (model));
+
+ if (completion->priv->completion_prefix == NULL)
+ completion->priv->completion_prefix = g_strdup (gtk_entry_get_text (GTK_ENTRY (completion->priv->entry)));
+
+ g_signal_emit_by_name (completion, "cursor-on-match", model,
+ &child_iter, &entry_set);
+ }
+ }
+ else if (completion->priv->current_selected - matches >= 0)
+ {
+ gtk_tree_selection_unselect_all (gtk_tree_view_get_selection (GTK_TREE_VIEW (completion->priv->tree_view)));
+
+ path = gtk_tree_path_new_from_indices (completion->priv->current_selected - matches, -1);
+ gtk_tree_view_set_cursor (GTK_TREE_VIEW (completion->priv->action_view),
+ path, NULL, FALSE);
+
+ if (completion->priv->inline_selection &&
+ completion->priv->completion_prefix)
+ {
+ gtk_entry_set_text (GTK_ENTRY (completion->priv->entry),
+ completion->priv->completion_prefix);
+ gtk_editable_set_position (GTK_EDITABLE (widget), -1);
+ }
+ }
+
+ gtk_tree_path_free (path);
+
+ return TRUE;
+ }
+ else if (event->keyval == GDK_KEY_Escape ||
+ event->keyval == GDK_KEY_Left ||
+ event->keyval == GDK_KEY_KP_Left ||
+ event->keyval == GDK_KEY_Right ||
+ event->keyval == GDK_KEY_KP_Right)
+ {
+ gboolean retval = TRUE;
+
+ gtk_entry_reset_im_context (GTK_ENTRY (widget));
+ _gtk_entry_completion_popdown (completion);
+
+ if (completion->priv->current_selected < 0)
+ {
+ retval = FALSE;
+ goto keypress_completion_out;
+ }
+ else if (completion->priv->inline_selection)
+ {
+ /* Escape rejects the tentative completion */
+ if (event->keyval == GDK_KEY_Escape)
+ {
+ if (completion->priv->completion_prefix)
+ gtk_entry_set_text (GTK_ENTRY (completion->priv->entry),
+ completion->priv->completion_prefix);
+ else
+ gtk_entry_set_text (GTK_ENTRY (completion->priv->entry), "");
+ }
+
+ /* Move the cursor to the end for Right/Esc */
+ if (event->keyval == GDK_KEY_Right ||
+ event->keyval == GDK_KEY_KP_Right ||
+ event->keyval == GDK_KEY_Escape)
+ gtk_editable_set_position (GTK_EDITABLE (widget), -1);
+ /* Let the default keybindings run for Left, i.e. either move to the
+ * * previous character or select word if a modifier is used */
+ else
+ retval = FALSE;
+ }
+
+keypress_completion_out:
+ if (completion->priv->inline_selection)
+ {
+ g_free (completion->priv->completion_prefix);
+ completion->priv->completion_prefix = NULL;
+ }
+
+ return retval;
+ }
+ else if (event->keyval == GDK_KEY_Tab ||
+ event->keyval == GDK_KEY_KP_Tab ||
+ event->keyval == GDK_KEY_ISO_Left_Tab)
+ {
+ gtk_entry_reset_im_context (GTK_ENTRY (widget));
+ _gtk_entry_completion_popdown (completion);
+
+ g_free (completion->priv->completion_prefix);
+ completion->priv->completion_prefix = NULL;
+
+ return FALSE;
+ }
+ else if (event->keyval == GDK_KEY_ISO_Enter ||
+ event->keyval == GDK_KEY_KP_Enter ||
+ event->keyval == GDK_KEY_Return)
+ {
+ GtkTreeIter iter;
+ GtkTreeModel *model = NULL;
+ GtkTreeModel *child_model;
+ GtkTreeIter child_iter;
+ GtkTreeSelection *sel;
+ gboolean retval = TRUE;
+
+ gtk_entry_reset_im_context (GTK_ENTRY (widget));
+ _gtk_entry_completion_popdown (completion);
+
+ if (completion->priv->current_selected < matches)
+ {
+ gboolean entry_set;
+
+ sel = gtk_tree_view_get_selection (GTK_TREE_VIEW (completion->priv->tree_view));
+ if (gtk_tree_selection_get_selected (sel, &model, &iter))
+ {
+ gtk_tree_model_filter_convert_iter_to_child_iter (GTK_TREE_MODEL_FILTER (model), &child_iter, &iter);
+ child_model = gtk_tree_model_filter_get_model (GTK_TREE_MODEL_FILTER (model));
+ g_signal_handler_block (widget, completion->priv->changed_id);
+ g_signal_emit_by_name (completion, "match-selected",
+ child_model, &child_iter, &entry_set);
+ g_signal_handler_unblock (widget, completion->priv->changed_id);
+
+ if (!entry_set)
+ {
+ gchar *str = NULL;
+
+ gtk_tree_model_get (model, &iter,
+ completion->priv->text_column, &str,
+ -1);
+
+ gtk_entry_set_text (GTK_ENTRY (widget), str);
+
+ /* move the cursor to the end */
+ gtk_editable_set_position (GTK_EDITABLE (widget), -1);
+ g_free (str);
+ }
+ }
+ else
+ retval = FALSE;
+ }
+ else if (completion->priv->current_selected - matches >= 0)
+ {
+ sel = gtk_tree_view_get_selection (GTK_TREE_VIEW (completion->priv->action_view));
+ if (gtk_tree_selection_get_selected (sel, &model, &iter))
+ {
+ GtkTreePath *path;
+
+ path = gtk_tree_path_new_from_indices (completion->priv->current_selected - matches, -1);
+ g_signal_emit_by_name (completion, "action-activated",
+ gtk_tree_path_get_indices (path)[0]);
+ gtk_tree_path_free (path);
+ }
+ else
+ retval = FALSE;
+ }
+
+ g_free (completion->priv->completion_prefix);
+ completion->priv->completion_prefix = NULL;
+
+ return retval;
+ }
+
+ return FALSE;
+}
+
+static void
+gtk_entry_completion_changed (GtkWidget *widget,
+ gpointer user_data)
+{
+ GtkEntryCompletion *completion = GTK_ENTRY_COMPLETION (user_data);
+ GtkEntry *entry = GTK_ENTRY (widget);
+ GdkDevice *device;
+
+ if (!completion->priv->popup_completion)
+ return;
+
+ /* (re)install completion timeout */
+ if (completion->priv->completion_timeout)
+ g_source_remove (completion->priv->completion_timeout);
+
+ if (!gtk_entry_get_text (entry))
+ return;
+
+ /* no need to normalize for this test */
+ if (completion->priv->minimum_key_length > 0 &&
+ strcmp ("", gtk_entry_get_text (entry)) == 0)
+ {
+ if (gtk_widget_get_visible (completion->priv->popup_window))
+ _gtk_entry_completion_popdown (completion);
+ return;
+ }
+
+ device = gtk_get_current_event_device ();
+
+ if (device && gdk_device_get_source (device) == GDK_SOURCE_KEYBOARD)
+ device = gdk_device_get_associated_device (device);
+
+ if (device)
+ completion->priv->device = device;
+
+ completion->priv->completion_timeout =
+ gdk_threads_add_timeout (COMPLETION_TIMEOUT,
+ gtk_entry_completion_timeout,
+ completion);
+}
+
+static gboolean
+check_completion_callback (GtkEntryCompletion *completion)
+{
+ completion->priv->check_completion_idle = NULL;
+
+ gtk_entry_completion_complete (completion);
+ gtk_entry_completion_insert_prefix (completion);
+
+ return FALSE;
+}
+
+static void
+clear_completion_callback (GtkEntry *entry,
+ GParamSpec *pspec)
+{
+ GtkEntryCompletion *completion = gtk_entry_get_completion (entry);
+
+ if (!completion->priv->inline_completion)
+ return;
+
+ if (pspec->name == I_("cursor-position") ||
+ pspec->name == I_("selection-bound"))
+ completion->priv->has_completion = FALSE;
+}
+
+static gboolean
+accept_completion_callback (GtkEntry *entry)
+{
+ GtkEntryCompletion *completion = gtk_entry_get_completion (entry);
+
+ if (!completion->priv->inline_completion)
+ return FALSE;
+
+ if (completion->priv->has_completion)
+ gtk_editable_set_position (GTK_EDITABLE (entry),
+ gtk_entry_buffer_get_length (gtk_entry_get_buffer (entry)));
+
+ return FALSE;
+}
+
+static void
+completion_insert_text_callback (GtkEntry *entry,
+ const gchar *text,
+ gint length,
+ gint position,
+ GtkEntryCompletion *completion)
+{
+ if (!completion->priv->inline_completion)
+ return;
+
+ /* idle to update the selection based on the file list */
+ if (completion->priv->check_completion_idle == NULL)
+ {
+ completion->priv->check_completion_idle = g_idle_source_new ();
+ g_source_set_priority (completion->priv->check_completion_idle, G_PRIORITY_HIGH);
+ g_source_set_closure (completion->priv->check_completion_idle,
+ g_cclosure_new_object (G_CALLBACK (check_completion_callback),
+ G_OBJECT (completion)));
+ g_source_attach (completion->priv->check_completion_idle, NULL);
+ }
+}
+
+static void
+connect_completion_signals (GtkEntryCompletion *completion)
+{
+ completion->priv->changed_id =
+ g_signal_connect (completion->priv->entry, "changed",
+ G_CALLBACK (gtk_entry_completion_changed), completion);
+ g_signal_connect (completion->priv->entry, "key-press-event",
+ G_CALLBACK (gtk_entry_completion_key_press), completion);
+
+ completion->priv->insert_text_id =
+ g_signal_connect (completion->priv->entry, "insert-text",
+ G_CALLBACK (completion_insert_text_callback), completion);
+ g_signal_connect (completion->priv->entry, "notify",
+ G_CALLBACK (clear_completion_callback), completion);
+ g_signal_connect (completion->priv->entry, "activate",
+ G_CALLBACK (accept_completion_callback), completion);
+ g_signal_connect (completion->priv->entry, "focus-out-event",
+ G_CALLBACK (accept_completion_callback), completion);
+}
+
+static void
+set_accessible_relation (GtkWidget *window,
+ GtkWidget *entry)
+{
+ AtkObject *window_accessible;
+ AtkObject *entry_accessible;
+
+ window_accessible = gtk_widget_get_accessible (window);
+ entry_accessible = gtk_widget_get_accessible (entry);
+
+ atk_object_add_relationship (window_accessible,
+ ATK_RELATION_POPUP_FOR,
+ entry_accessible);
+}
+
+static void
+unset_accessible_relation (GtkWidget *window,
+ GtkWidget *entry)
+{
+ AtkObject *window_accessible;
+ AtkObject *entry_accessible;
+
+ window_accessible = gtk_widget_get_accessible (window);
+ entry_accessible = gtk_widget_get_accessible (entry);
+
+ atk_object_remove_relationship (window_accessible,
+ ATK_RELATION_POPUP_FOR,
+ entry_accessible);
+}
+
+static void
+disconnect_completion_signals (GtkEntryCompletion *completion)
+{
+ if (completion->priv->changed_id > 0 &&
+ g_signal_handler_is_connected (completion->priv->entry,
+ completion->priv->changed_id))
+ {
+ g_signal_handler_disconnect (completion->priv->entry,
+ completion->priv->changed_id);
+ completion->priv->changed_id = 0;
+ }
+ g_signal_handlers_disconnect_by_func (completion->priv->entry,
+ G_CALLBACK (gtk_entry_completion_key_press), completion);
+ if (completion->priv->insert_text_id > 0 &&
+ g_signal_handler_is_connected (completion->priv->entry,
+ completion->priv->insert_text_id))
+ {
+ g_signal_handler_disconnect (completion->priv->entry,
+ completion->priv->insert_text_id);
+ completion->priv->insert_text_id = 0;
+ }
+ g_signal_handlers_disconnect_by_func (completion->priv->entry,
+ G_CALLBACK (completion_insert_text_callback), completion);
+ g_signal_handlers_disconnect_by_func (completion->priv->entry,
+ G_CALLBACK (clear_completion_callback), completion);
+ g_signal_handlers_disconnect_by_func (completion->priv->entry,
+ G_CALLBACK (accept_completion_callback), completion);
+}
+
+void
+_gtk_entry_completion_disconnect (GtkEntryCompletion *completion)
+{
+ if (completion->priv->completion_timeout)
+ {
+ g_source_remove (completion->priv->completion_timeout);
+ completion->priv->completion_timeout = 0;
+ }
+ if (completion->priv->check_completion_idle)
+ {
+ g_source_destroy (completion->priv->check_completion_idle);
+ completion->priv->check_completion_idle = NULL;
+ }
+
+ if (gtk_widget_get_mapped (completion->priv->popup_window))
+ _gtk_entry_completion_popdown (completion);
+
+ disconnect_completion_signals (completion);
+
+ unset_accessible_relation (completion->priv->popup_window,
+ completion->priv->entry);
+
+ completion->priv->entry = NULL;
+}
+
+void
+_gtk_entry_completion_connect (GtkEntryCompletion *completion,
+ GtkEntry *entry)
+{
+ completion->priv->entry = GTK_WIDGET (entry);
+
+ set_accessible_relation (completion->priv->popup_window,
+ completion->priv->entry);
+
+ connect_completion_signals (completion);
+}