forked from AuroraMiddleware/gtk
GtkAssistant doesn't notice destroyed pages
Listen for GtkContainer::remove signals from the internal notebook. https://bugzilla.gnome.org/show_bug.cgi?id=653705
This commit is contained in:
Matthew Barnes
parent
3846a59bab
commit
4d17ff973e
@ -864,6 +864,83 @@ assistant_sidebar_draw_cb (GtkWidget *widget,
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return FALSE;
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}
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static void
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on_page_notify_visibility (GtkWidget *widget,
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GParamSpec *arg,
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gpointer data)
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{
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GtkAssistant *assistant = GTK_ASSISTANT (data);
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if (gtk_widget_get_mapped (GTK_WIDGET (assistant)))
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{
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update_buttons_state (assistant);
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update_title_state (assistant);
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}
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}
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static void
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assistant_remove_page_cb (GtkNotebook *notebook,
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GtkWidget *page,
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GtkAssistant *assistant)
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{
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GtkAssistantPrivate *priv = assistant->priv;
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GtkAssistantPage *page_info;
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GList *page_node;
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GList *element;
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element = find_page (assistant, page);
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if (!element)
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return;
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page_info = element->data;
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/* If this is the current page, we need to switch away. */
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if (page_info == priv->current_page)
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{
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if (!compute_next_step (assistant))
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{
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/* The best we can do at this point is probably to pick
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* the first visible page.
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*/
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page_node = priv->pages;
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while (page_node &&
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!gtk_widget_get_visible (((GtkAssistantPage *) page_node->data)->page))
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page_node = page_node->next;
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if (page_node == element)
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page_node = page_node->next;
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if (page_node)
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priv->current_page = page_node->data;
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else
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priv->current_page = NULL;
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}
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}
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g_signal_handlers_disconnect_by_func (page_info->page, on_page_notify_visibility, assistant);
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gtk_size_group_remove_widget (priv->title_size_group, page_info->regular_title);
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gtk_size_group_remove_widget (priv->title_size_group, page_info->current_title);
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gtk_container_remove (GTK_CONTAINER (priv->sidebar), page_info->regular_title);
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gtk_container_remove (GTK_CONTAINER (priv->sidebar), page_info->current_title);
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priv->pages = g_list_remove_link (priv->pages, element);
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priv->visited_pages = g_slist_remove_all (priv->visited_pages, page_info);
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g_free (page_info->title);
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g_slice_free (GtkAssistantPage, page_info);
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g_list_free_1 (element);
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if (gtk_widget_get_mapped (GTK_WIDGET (assistant)))
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{
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update_buttons_state (assistant);
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update_actions_size (assistant);
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}
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}
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static void
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gtk_assistant_init (GtkAssistant *assistant)
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{
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@ -903,6 +980,9 @@ gtk_assistant_init (GtkAssistant *assistant)
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gtk_notebook_set_show_tabs (GTK_NOTEBOOK (priv->content), FALSE);
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priv->action_area = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
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g_signal_connect (priv->content, "remove",
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G_CALLBACK (assistant_remove_page_cb), assistant);
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gtk_container_add (GTK_CONTAINER (sidebar_frame), priv->sidebar);
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gtk_box_pack_start (GTK_BOX (main_box), sidebar_frame, FALSE, FALSE, 0);
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gtk_box_pack_start (GTK_BOX (main_box), content_box, TRUE, TRUE, 0);
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@ -1059,78 +1139,6 @@ gtk_assistant_get_child_property (GtkContainer *container,
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}
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}
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static void
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on_page_notify_visibility (GtkWidget *widget,
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GParamSpec *arg,
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gpointer data)
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{
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GtkAssistant *assistant = GTK_ASSISTANT (data);
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if (gtk_widget_get_mapped (GTK_WIDGET (assistant)))
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{
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update_buttons_state (assistant);
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update_title_state (assistant);
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}
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}
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static void
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remove_page (GtkAssistant *assistant,
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GList *element)
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{
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GtkAssistantPrivate *priv = assistant->priv;
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GtkAssistantPage *page_info;
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GList *page_node;
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page_info = element->data;
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/* If this is the current page, we need to switch away. */
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if (page_info == priv->current_page)
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{
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if (!compute_next_step (assistant))
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{
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/* The best we can do at this point is probably to pick
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* the first visible page.
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*/
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page_node = priv->pages;
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while (page_node &&
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!gtk_widget_get_visible (((GtkAssistantPage *) page_node->data)->page))
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page_node = page_node->next;
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if (page_node == element)
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page_node = page_node->next;
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if (page_node)
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priv->current_page = page_node->data;
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else
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priv->current_page = NULL;
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}
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}
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g_signal_handlers_disconnect_by_func (page_info->page, on_page_notify_visibility, assistant);
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gtk_size_group_remove_widget (priv->title_size_group, page_info->regular_title);
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gtk_size_group_remove_widget (priv->title_size_group, page_info->current_title);
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gtk_container_remove (GTK_CONTAINER (priv->sidebar), page_info->regular_title);
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gtk_container_remove (GTK_CONTAINER (priv->sidebar), page_info->current_title);
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gtk_notebook_remove_page (GTK_NOTEBOOK (priv->content), gtk_notebook_page_num (GTK_NOTEBOOK (priv->content), page_info->page));
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priv->pages = g_list_remove_link (priv->pages, element);
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priv->visited_pages = g_slist_remove_all (priv->visited_pages, page_info);
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g_free (page_info->title);
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g_slice_free (GtkAssistantPage, page_info);
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g_list_free_1 (element);
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if (gtk_widget_get_mapped (GTK_WIDGET (assistant)))
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{
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update_buttons_state (assistant);
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update_actions_size (assistant);
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}
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}
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static void
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gtk_assistant_destroy (GtkWidget *widget)
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{
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@ -1142,15 +1150,25 @@ gtk_assistant_destroy (GtkWidget *widget)
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*/
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priv->current_page = NULL;
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while (priv->pages)
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remove_page (assistant, priv->pages);
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if (priv->content)
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{
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GtkNotebook *notebook;
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GtkWidget *page;
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/* Remove all pages from the content notebook. */
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notebook = (GtkNotebook *) priv->content;
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while ((page = gtk_notebook_get_nth_page (notebook, 0)) != NULL)
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gtk_container_remove ((GtkContainer *) notebook, page);
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/* Our GtkAssistantPage list should be empty now. */
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g_warn_if_fail (priv->pages == NULL);
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priv->content = NULL;
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}
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if (priv->sidebar)
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priv->sidebar = NULL;
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if (priv->content)
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priv->content = NULL;
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if (priv->action_area)
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priv->action_area = NULL;
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@ -1282,15 +1300,10 @@ gtk_assistant_remove (GtkContainer *container,
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GtkWidget *page)
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{
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GtkAssistant *assistant = (GtkAssistant*) container;
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GList *element;
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element = find_page (assistant, page);
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if (element)
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{
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remove_page (assistant, element);
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gtk_widget_queue_resize ((GtkWidget *) container);
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}
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/* Forward this removal to the content notebook. */
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container = (GtkContainer *) assistant->priv->content;
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gtk_container_remove (container, page);
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}
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/**
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