forked from AuroraMiddleware/gtk
2338 lines
68 KiB
C
2338 lines
68 KiB
C
/*
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* GTK - The GIMP Toolkit
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* Copyright (C) 1999 Red Hat, Inc.
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* Copyright (C) 2002 Anders Carlsson <andersca@gnu.org>
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* Copyright (C) 2003 Matthias Clasen <mclasen@redhat.com>
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* Copyright (C) 2005 Carlos Garnacho Parro <carlosg@gnome.org>
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*
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* All rights reserved.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* GtkAssistant:
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*
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* `GtkAssistant` is used to represent a complex as a series of steps.
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*
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* 
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*
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* Each step consists of one or more pages. `GtkAssistant` guides the user
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* through the pages, and controls the page flow to collect the data needed
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* for the operation.
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*
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* `GtkAssistant` handles which buttons to show and to make sensitive based
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* on page sequence knowledge and the [enum@Gtk.AssistantPageType] of each
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* page in addition to state information like the *completed* and *committed*
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* page statuses.
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*
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* If you have a case that doesn’t quite fit in `GtkAssistant`s way of
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* handling buttons, you can use the %GTK_ASSISTANT_PAGE_CUSTOM page
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* type and handle buttons yourself.
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*
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* `GtkAssistant` maintains a `GtkAssistantPage` object for each added
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* child, which holds additional per-child properties. You
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* obtain the `GtkAssistantPage` for a child with [method@Gtk.Assistant.get_page].
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*
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* # GtkAssistant as GtkBuildable
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*
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* The `GtkAssistant` implementation of the `GtkBuildable` interface
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* exposes the @action_area as internal children with the name
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* “action_area”.
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*
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* To add pages to an assistant in `GtkBuilder`, simply add it as a
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* child to the `GtkAssistant` object. If you need to set per-object
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* properties, create a `GtkAssistantPage` object explicitly, and
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* set the child widget as a property on it.
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*
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* # CSS nodes
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*
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* `GtkAssistant` has a single CSS node with the name window and style
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* class .assistant.
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*/
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/**
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* GtkAssistantPage:
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*
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* `GtkAssistantPage` is an auxiliary object used by `GtkAssistant.
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*/
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#include "config.h"
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#include "gtkassistant.h"
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#include "gtkbox.h"
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#include "gtkbuildable.h"
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#include "gtkbutton.h"
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#include "gtkframe.h"
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#include "gtkheaderbar.h"
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#include "gtkimage.h"
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#include "gtklabel.h"
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#include "gtklistlistmodelprivate.h"
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#include "gtkmaplistmodel.h"
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#include "gtkprivate.h"
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#include "gtksettings.h"
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#include "gtksizegroup.h"
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#include "gtksizerequest.h"
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#include "gtkstack.h"
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#include "gtktypebuiltins.h"
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typedef struct _GtkAssistantPageClass GtkAssistantPageClass;
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struct _GtkAssistantPage
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{
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GObject instance;
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GtkAssistantPageType type;
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guint complete : 1;
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guint complete_set : 1;
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char *title;
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GtkWidget *page;
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GtkWidget *regular_title;
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GtkWidget *current_title;
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};
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struct _GtkAssistantPageClass
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{
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GObjectClass parent_class;
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};
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typedef struct _GtkAssistantClass GtkAssistantClass;
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struct _GtkAssistant
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{
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GtkWindow parent;
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GtkWidget *cancel;
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GtkWidget *forward;
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GtkWidget *back;
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GtkWidget *apply;
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GtkWidget *close;
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GtkWidget *last;
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GtkWidget *sidebar;
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GtkWidget *content;
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GtkWidget *action_area;
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GtkWidget *headerbar;
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int use_header_bar;
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gboolean constructed;
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GList *pages;
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GSList *visited_pages;
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GtkAssistantPage *current_page;
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GtkSizeGroup *button_size_group;
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GtkSizeGroup *title_size_group;
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GtkAssistantPageFunc forward_function;
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gpointer forward_function_data;
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GDestroyNotify forward_data_destroy;
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GListModel *model;
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int extra_buttons;
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guint committed : 1;
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};
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struct _GtkAssistantClass
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{
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GtkWindowClass parent_class;
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void (* prepare) (GtkAssistant *assistant, GtkWidget *page);
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void (* apply) (GtkAssistant *assistant);
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void (* close) (GtkAssistant *assistant);
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void (* cancel) (GtkAssistant *assistant);
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};
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#define GTK_TYPE_ASSISTANT_PAGES (gtk_assistant_pages_get_type ())
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G_DECLARE_FINAL_TYPE (GtkAssistantPages, gtk_assistant_pages, GTK, ASSISTANT_PAGES, GObject)
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struct _GtkAssistantPages
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{
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GObject parent_instance;
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GtkAssistant *assistant;
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};
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struct _GtkAssistantPagesClass
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{
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GObjectClass parent_class;
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};
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enum {
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PAGES_PROP_0,
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PAGES_PROP_ITEM_TYPE,
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PAGES_PROP_N_ITEMS,
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PAGES_N_PROPS
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};
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static GParamSpec *pages_properties[PAGES_N_PROPS] = { NULL, };
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static void gtk_assistant_dispose (GObject *object);
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static void gtk_assistant_map (GtkWidget *widget);
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static void gtk_assistant_unmap (GtkWidget *widget);
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static gboolean gtk_assistant_close_request (GtkWindow *window);
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static void gtk_assistant_page_set_property (GObject *object,
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guint property_id,
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const GValue *value,
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GParamSpec *pspec);
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static void gtk_assistant_page_get_property (GObject *object,
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guint property_id,
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GValue *value,
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GParamSpec *pspec);
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static void gtk_assistant_buildable_interface_init (GtkBuildableIface *iface);
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static void gtk_assistant_buildable_add_child (GtkBuildable *buildable,
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GtkBuilder *builder,
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GObject *child,
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const char *type);
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static gboolean gtk_assistant_buildable_custom_tag_start (GtkBuildable *buildable,
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GtkBuilder *builder,
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GObject *child,
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const char *tagname,
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GtkBuildableParser *parser,
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gpointer *data);
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static void gtk_assistant_buildable_custom_finished (GtkBuildable *buildable,
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GtkBuilder *builder,
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GObject *child,
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const char *tagname,
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gpointer user_data);
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static GList* find_page (GtkAssistant *assistant,
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GtkWidget *page);
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static void on_assistant_close (GtkWidget *widget,
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GtkAssistant *assistant);
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static void on_assistant_apply (GtkWidget *widget,
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GtkAssistant *assistant);
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static void on_assistant_forward (GtkWidget *widget,
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GtkAssistant *assistant);
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static void on_assistant_back (GtkWidget *widget,
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GtkAssistant *assistant);
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static void on_assistant_cancel (GtkWidget *widget,
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GtkAssistant *assistant);
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static void on_assistant_last (GtkWidget *widget,
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GtkAssistant *assistant);
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static int gtk_assistant_add_page (GtkAssistant *assistant,
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GtkAssistantPage *page_info,
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int position);
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enum
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{
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CHILD_PROP_0,
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CHILD_PROP_CHILD,
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CHILD_PROP_PAGE_TYPE,
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CHILD_PROP_PAGE_TITLE,
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CHILD_PROP_PAGE_COMPLETE,
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CHILD_PROP_HAS_PADDING
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};
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G_DEFINE_TYPE (GtkAssistantPage, gtk_assistant_page, G_TYPE_OBJECT)
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static void
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gtk_assistant_page_init (GtkAssistantPage *page)
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{
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page->type = GTK_ASSISTANT_PAGE_CONTENT;
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}
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static void
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gtk_assistant_page_finalize (GObject *object)
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{
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GtkAssistantPage *page = GTK_ASSISTANT_PAGE (object);
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g_clear_object (&page->page);
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g_free (page->title);
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G_OBJECT_CLASS (gtk_assistant_page_parent_class)->finalize (object);
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}
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static void
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gtk_assistant_page_class_init (GtkAssistantPageClass *class)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (class);
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object_class->finalize = gtk_assistant_page_finalize;
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object_class->get_property = gtk_assistant_page_get_property;
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object_class->set_property = gtk_assistant_page_set_property;
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/**
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* GtkAssistantPage:page-type:
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*
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* The type of the assistant page.
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*/
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g_object_class_install_property (object_class,
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CHILD_PROP_PAGE_TYPE,
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g_param_spec_enum ("page-type", NULL, NULL,
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GTK_TYPE_ASSISTANT_PAGE_TYPE,
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GTK_ASSISTANT_PAGE_CONTENT,
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GTK_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY));
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||
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/**
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* GtkAssistantPage:title:
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*
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* The title of the page.
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*/
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g_object_class_install_property (object_class,
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CHILD_PROP_PAGE_TITLE,
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g_param_spec_string ("title", NULL, NULL,
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NULL,
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GTK_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY));
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/**
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* GtkAssistantPage:complete:
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*
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* Whether all required fields are filled in.
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*
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* GTK uses this information to control the sensitivity
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* of the navigation buttons.
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*/
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g_object_class_install_property (object_class,
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CHILD_PROP_PAGE_COMPLETE,
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g_param_spec_boolean ("complete", NULL, NULL,
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FALSE,
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G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY));
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||
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/**
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* GtkAssistantPage:child:
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*
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* The child widget.
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*/
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g_object_class_install_property (object_class,
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CHILD_PROP_CHILD,
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g_param_spec_object ("child", NULL, NULL,
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GTK_TYPE_WIDGET,
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GTK_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
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}
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||
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enum
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{
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CANCEL,
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PREPARE,
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APPLY,
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CLOSE,
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ESCAPE,
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LAST_SIGNAL
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||
};
|
||
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enum {
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||
PROP_0,
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PROP_USE_HEADER_BAR,
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PROP_PAGES
|
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};
|
||
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static guint signals [LAST_SIGNAL] = { 0 };
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||
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G_DEFINE_TYPE_WITH_CODE (GtkAssistant, gtk_assistant, GTK_TYPE_WINDOW,
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G_IMPLEMENT_INTERFACE (GTK_TYPE_BUILDABLE,
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gtk_assistant_buildable_interface_init))
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||
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static void
|
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set_use_header_bar (GtkAssistant *assistant,
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int use_header_bar)
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{
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if (use_header_bar == -1)
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return;
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assistant->use_header_bar = use_header_bar;
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}
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||
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static void
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gtk_assistant_set_property (GObject *object,
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guint prop_id,
|
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const GValue *value,
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GParamSpec *pspec)
|
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{
|
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GtkAssistant *assistant = GTK_ASSISTANT (object);
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switch (prop_id)
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{
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case PROP_USE_HEADER_BAR:
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set_use_header_bar (assistant, g_value_get_int (value));
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break;
|
||
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||
default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
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break;
|
||
}
|
||
}
|
||
|
||
static void
|
||
gtk_assistant_get_property (GObject *object,
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||
guint prop_id,
|
||
GValue *value,
|
||
GParamSpec *pspec)
|
||
{
|
||
GtkAssistant *assistant = GTK_ASSISTANT (object);
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||
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||
switch (prop_id)
|
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{
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||
case PROP_USE_HEADER_BAR:
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g_value_set_int (value, assistant->use_header_bar);
|
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break;
|
||
|
||
case PROP_PAGES:
|
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g_value_set_object (value, gtk_assistant_get_pages (assistant));
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break;
|
||
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default:
|
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
||
break;
|
||
}
|
||
}
|
||
|
||
static void
|
||
apply_use_header_bar (GtkAssistant *assistant)
|
||
{
|
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gtk_widget_set_visible (assistant->action_area, !assistant->use_header_bar);
|
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gtk_widget_set_visible (assistant->headerbar, assistant->use_header_bar);
|
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if (!assistant->use_header_bar)
|
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gtk_window_set_titlebar (GTK_WINDOW (assistant), NULL);
|
||
}
|
||
|
||
static void
|
||
add_to_header_bar (GtkAssistant *assistant,
|
||
GtkWidget *child)
|
||
{
|
||
gtk_widget_set_valign (child, GTK_ALIGN_CENTER);
|
||
|
||
if (child == assistant->back || child == assistant->cancel)
|
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gtk_header_bar_pack_start (GTK_HEADER_BAR (assistant->headerbar), child);
|
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else
|
||
gtk_header_bar_pack_end (GTK_HEADER_BAR (assistant->headerbar), child);
|
||
}
|
||
|
||
static void
|
||
add_action_widgets (GtkAssistant *assistant)
|
||
{
|
||
GList *children, *l;
|
||
GtkWidget *child;
|
||
|
||
if (assistant->use_header_bar)
|
||
{
|
||
children = NULL;
|
||
for (child = gtk_widget_get_last_child (assistant->action_area);
|
||
child != NULL;
|
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child = gtk_widget_get_prev_sibling (child))
|
||
children = g_list_prepend (children, child);
|
||
for (l = children; l != NULL; l = l->next)
|
||
{
|
||
gboolean has_default;
|
||
|
||
child = l->data;
|
||
has_default = gtk_widget_has_default (child);
|
||
|
||
g_object_ref (child);
|
||
gtk_box_remove (GTK_BOX (assistant->action_area), child);
|
||
add_to_header_bar (assistant, child);
|
||
g_object_unref (child);
|
||
|
||
if (has_default)
|
||
{
|
||
gtk_window_set_default_widget (GTK_WINDOW (assistant), child);
|
||
gtk_widget_add_css_class (child, "suggested-action");
|
||
}
|
||
}
|
||
g_list_free (children);
|
||
}
|
||
}
|
||
|
||
static void
|
||
gtk_assistant_constructed (GObject *object)
|
||
{
|
||
GtkAssistant *assistant = GTK_ASSISTANT (object);
|
||
|
||
G_OBJECT_CLASS (gtk_assistant_parent_class)->constructed (object);
|
||
|
||
assistant->constructed = TRUE;
|
||
if (assistant->use_header_bar == -1)
|
||
assistant->use_header_bar = FALSE;
|
||
|
||
add_action_widgets (assistant);
|
||
apply_use_header_bar (assistant);
|
||
}
|
||
|
||
static void
|
||
escape_cb (GtkAssistant *assistant)
|
||
{
|
||
/* Do not allow cancelling in the middle of a progress page */
|
||
if (assistant->current_page &&
|
||
(assistant->current_page->type != GTK_ASSISTANT_PAGE_PROGRESS ||
|
||
assistant->current_page->complete))
|
||
g_signal_emit (assistant, signals [CANCEL], 0, NULL);
|
||
|
||
/* don't run any user handlers - this is not a public signal */
|
||
g_signal_stop_emission (assistant, signals[ESCAPE], 0);
|
||
}
|
||
|
||
static void
|
||
gtk_assistant_finalize (GObject *object)
|
||
{
|
||
GtkAssistant *assistant = GTK_ASSISTANT (object);
|
||
|
||
if (assistant->model)
|
||
g_object_remove_weak_pointer (G_OBJECT (assistant->model), (gpointer *)&assistant->model);
|
||
|
||
G_OBJECT_CLASS (gtk_assistant_parent_class)->finalize (object);
|
||
}
|
||
|
||
static void
|
||
gtk_assistant_class_init (GtkAssistantClass *class)
|
||
{
|
||
GObjectClass *gobject_class;
|
||
GtkWidgetClass *widget_class;
|
||
GtkWindowClass *window_class;
|
||
|
||
gobject_class = (GObjectClass *) class;
|
||
widget_class = (GtkWidgetClass *) class;
|
||
window_class = (GtkWindowClass *) class;
|
||
|
||
gobject_class->dispose = gtk_assistant_dispose;
|
||
gobject_class->finalize = gtk_assistant_finalize;
|
||
gobject_class->constructed = gtk_assistant_constructed;
|
||
gobject_class->set_property = gtk_assistant_set_property;
|
||
gobject_class->get_property = gtk_assistant_get_property;
|
||
|
||
widget_class->map = gtk_assistant_map;
|
||
widget_class->unmap = gtk_assistant_unmap;
|
||
|
||
window_class->close_request = gtk_assistant_close_request;
|
||
|
||
/**
|
||
* GtkAssistant::cancel:
|
||
* @assistant: the `GtkAssistant`
|
||
*
|
||
* Emitted when then the cancel button is clicked.
|
||
*/
|
||
signals[CANCEL] =
|
||
g_signal_new (I_("cancel"),
|
||
G_TYPE_FROM_CLASS (gobject_class),
|
||
G_SIGNAL_RUN_LAST,
|
||
G_STRUCT_OFFSET (GtkAssistantClass, cancel),
|
||
NULL, NULL,
|
||
NULL,
|
||
G_TYPE_NONE, 0);
|
||
|
||
/**
|
||
* GtkAssistant::prepare:
|
||
* @assistant: the `GtkAssistant`
|
||
* @page: the current page
|
||
*
|
||
* Emitted when a new page is set as the assistant's current page,
|
||
* before making the new page visible.
|
||
*
|
||
* A handler for this signal can do any preparations which are
|
||
* necessary before showing @page.
|
||
*/
|
||
signals[PREPARE] =
|
||
g_signal_new (I_("prepare"),
|
||
G_TYPE_FROM_CLASS (gobject_class),
|
||
G_SIGNAL_RUN_LAST,
|
||
G_STRUCT_OFFSET (GtkAssistantClass, prepare),
|
||
NULL, NULL,
|
||
NULL,
|
||
G_TYPE_NONE, 1, GTK_TYPE_WIDGET);
|
||
|
||
/**
|
||
* GtkAssistant::apply:
|
||
* @assistant: the `GtkAssistant`
|
||
*
|
||
* Emitted when the apply button is clicked.
|
||
*
|
||
* The default behavior of the `GtkAssistant` is to switch to the page
|
||
* after the current page, unless the current page is the last one.
|
||
*
|
||
* A handler for the ::apply signal should carry out the actions for
|
||
* which the wizard has collected data. If the action takes a long time
|
||
* to complete, you might consider putting a page of type
|
||
* %GTK_ASSISTANT_PAGE_PROGRESS after the confirmation page and handle
|
||
* this operation within the [signal@Gtk.Assistant::prepare] signal of
|
||
* the progress page.
|
||
*/
|
||
signals[APPLY] =
|
||
g_signal_new (I_("apply"),
|
||
G_TYPE_FROM_CLASS (gobject_class),
|
||
G_SIGNAL_RUN_LAST,
|
||
G_STRUCT_OFFSET (GtkAssistantClass, apply),
|
||
NULL, NULL,
|
||
NULL,
|
||
G_TYPE_NONE, 0);
|
||
|
||
/**
|
||
* GtkAssistant::close:
|
||
* @assistant: the `GtkAssistant`
|
||
*
|
||
* Emitted either when the close button of a summary page is clicked,
|
||
* or when the apply button in the last page in the flow (of type
|
||
* %GTK_ASSISTANT_PAGE_CONFIRM) is clicked.
|
||
*/
|
||
signals[CLOSE] =
|
||
g_signal_new (I_("close"),
|
||
G_TYPE_FROM_CLASS (gobject_class),
|
||
G_SIGNAL_RUN_LAST,
|
||
G_STRUCT_OFFSET (GtkAssistantClass, close),
|
||
NULL, NULL,
|
||
NULL,
|
||
G_TYPE_NONE, 0);
|
||
|
||
/**
|
||
* GtkAssistant::escape
|
||
* @assistant: the `GtkAssistant`
|
||
*
|
||
* The action signal for the Escape binding.
|
||
*/
|
||
signals[ESCAPE] =
|
||
g_signal_new_class_handler (I_("escape"),
|
||
G_TYPE_FROM_CLASS (gobject_class),
|
||
G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION,
|
||
G_CALLBACK (escape_cb),
|
||
NULL, NULL,
|
||
NULL,
|
||
G_TYPE_NONE, 0);
|
||
|
||
gtk_widget_class_add_binding_signal (widget_class,
|
||
GDK_KEY_Escape, 0,
|
||
"escape",
|
||
NULL);
|
||
|
||
/**
|
||
* GtkAssistant:use-header-bar:
|
||
*
|
||
* %TRUE if the assistant uses a `GtkHeaderBar` for action buttons
|
||
* instead of the action-area.
|
||
*
|
||
* For technical reasons, this property is declared as an integer
|
||
* property, but you should only set it to %TRUE or %FALSE.
|
||
*/
|
||
g_object_class_install_property (gobject_class,
|
||
PROP_USE_HEADER_BAR,
|
||
g_param_spec_int ("use-header-bar", NULL, NULL,
|
||
-1, 1, -1,
|
||
GTK_PARAM_READWRITE|G_PARAM_CONSTRUCT_ONLY));
|
||
|
||
/**
|
||
* GtkAssistant:pages:
|
||
*
|
||
* `GListModel` containing the pages.
|
||
*/
|
||
g_object_class_install_property (gobject_class,
|
||
PROP_PAGES,
|
||
g_param_spec_object ("pages", NULL, NULL,
|
||
G_TYPE_LIST_MODEL,
|
||
GTK_PARAM_READABLE));
|
||
|
||
/* Bind class to template
|
||
*/
|
||
gtk_widget_class_set_template_from_resource (widget_class,
|
||
"/org/gtk/libgtk/ui/gtkassistant.ui");
|
||
|
||
gtk_widget_class_bind_template_child_internal (widget_class, GtkAssistant, action_area);
|
||
gtk_widget_class_bind_template_child_internal (widget_class, GtkAssistant, headerbar);
|
||
gtk_widget_class_bind_template_child (widget_class, GtkAssistant, content);
|
||
gtk_widget_class_bind_template_child (widget_class, GtkAssistant, cancel);
|
||
gtk_widget_class_bind_template_child (widget_class, GtkAssistant, forward);
|
||
gtk_widget_class_bind_template_child (widget_class, GtkAssistant, back);
|
||
gtk_widget_class_bind_template_child (widget_class, GtkAssistant, apply);
|
||
gtk_widget_class_bind_template_child (widget_class, GtkAssistant, close);
|
||
gtk_widget_class_bind_template_child (widget_class, GtkAssistant, last);
|
||
gtk_widget_class_bind_template_child (widget_class, GtkAssistant, sidebar);
|
||
gtk_widget_class_bind_template_child (widget_class, GtkAssistant, button_size_group);
|
||
gtk_widget_class_bind_template_child (widget_class, GtkAssistant, title_size_group);
|
||
|
||
gtk_widget_class_bind_template_callback (widget_class, on_assistant_close);
|
||
gtk_widget_class_bind_template_callback (widget_class, on_assistant_apply);
|
||
gtk_widget_class_bind_template_callback (widget_class, on_assistant_forward);
|
||
gtk_widget_class_bind_template_callback (widget_class, on_assistant_back);
|
||
gtk_widget_class_bind_template_callback (widget_class, on_assistant_cancel);
|
||
gtk_widget_class_bind_template_callback (widget_class, on_assistant_last);
|
||
}
|
||
|
||
static int
|
||
default_forward_function (int current_page, gpointer data)
|
||
{
|
||
GtkAssistant *assistant = GTK_ASSISTANT (data);
|
||
GtkAssistantPage *page_info;
|
||
GList *page_node;
|
||
|
||
page_node = g_list_nth (assistant->pages, ++current_page);
|
||
|
||
if (!page_node)
|
||
return -1;
|
||
|
||
page_info = (GtkAssistantPage *) page_node->data;
|
||
|
||
while (page_node && !gtk_widget_get_visible (page_info->page))
|
||
{
|
||
page_node = page_node->next;
|
||
current_page++;
|
||
|
||
if (page_node)
|
||
page_info = (GtkAssistantPage *) page_node->data;
|
||
}
|
||
|
||
return current_page;
|
||
}
|
||
|
||
static gboolean
|
||
last_button_visible (GtkAssistant *assistant, GtkAssistantPage *page)
|
||
{
|
||
GtkAssistantPage *page_info;
|
||
int count, page_num, n_pages;
|
||
|
||
if (page == NULL)
|
||
return FALSE;
|
||
|
||
if (page->type != GTK_ASSISTANT_PAGE_CONTENT)
|
||
return FALSE;
|
||
|
||
count = 0;
|
||
page_num = g_list_index (assistant->pages, page);
|
||
n_pages = g_list_length (assistant->pages);
|
||
page_info = page;
|
||
|
||
while (page_num >= 0 && page_num < n_pages &&
|
||
page_info->type == GTK_ASSISTANT_PAGE_CONTENT &&
|
||
(count == 0 || page_info->complete) &&
|
||
count < n_pages)
|
||
{
|
||
page_num = (assistant->forward_function) (page_num, assistant->forward_function_data);
|
||
page_info = g_list_nth_data (assistant->pages, page_num);
|
||
|
||
count++;
|
||
}
|
||
|
||
/* Make the last button visible if we can skip multiple
|
||
* pages and end on a confirmation or summary page
|
||
*/
|
||
if (count > 1 && page_info &&
|
||
(page_info->type == GTK_ASSISTANT_PAGE_CONFIRM ||
|
||
page_info->type == GTK_ASSISTANT_PAGE_SUMMARY))
|
||
return TRUE;
|
||
else
|
||
return FALSE;
|
||
}
|
||
|
||
static void
|
||
update_actions_size (GtkAssistant *assistant)
|
||
{
|
||
GList *l;
|
||
GtkAssistantPage *page;
|
||
int buttons, page_buttons;
|
||
|
||
if (!assistant->current_page)
|
||
return;
|
||
|
||
/* Some heuristics to find out how many buttons we should
|
||
* reserve space for. It is possible to trick this code
|
||
* with page forward functions and invisible pages, etc.
|
||
*/
|
||
buttons = 0;
|
||
for (l = assistant->pages; l; l = l->next)
|
||
{
|
||
page = l->data;
|
||
|
||
if (!gtk_widget_get_visible (page->page))
|
||
continue;
|
||
|
||
page_buttons = 2; /* cancel, forward/apply/close */
|
||
if (l != assistant->pages)
|
||
page_buttons += 1; /* back */
|
||
if (last_button_visible (assistant, page))
|
||
page_buttons += 1; /* last */
|
||
|
||
buttons = MAX (buttons, page_buttons);
|
||
}
|
||
|
||
buttons += assistant->extra_buttons;
|
||
|
||
gtk_widget_set_size_request (assistant->action_area,
|
||
buttons * gtk_widget_get_allocated_width (assistant->cancel) + (buttons - 1) * 6,
|
||
-1);
|
||
}
|
||
|
||
static void
|
||
compute_last_button_state (GtkAssistant *assistant)
|
||
{
|
||
gtk_widget_set_sensitive (assistant->last, assistant->current_page->complete);
|
||
if (last_button_visible (assistant, assistant->current_page))
|
||
gtk_widget_show (assistant->last);
|
||
else
|
||
gtk_widget_hide (assistant->last);
|
||
}
|
||
|
||
static void
|
||
compute_progress_state (GtkAssistant *assistant)
|
||
{
|
||
int page_num, n_pages;
|
||
|
||
n_pages = gtk_assistant_get_n_pages (assistant);
|
||
page_num = gtk_assistant_get_current_page (assistant);
|
||
|
||
page_num = (assistant->forward_function) (page_num, assistant->forward_function_data);
|
||
|
||
if (page_num >= 0 && page_num < n_pages)
|
||
gtk_widget_show (assistant->forward);
|
||
else
|
||
gtk_widget_hide (assistant->forward);
|
||
}
|
||
|
||
static void
|
||
update_buttons_state (GtkAssistant *assistant)
|
||
{
|
||
if (!assistant->current_page)
|
||
return;
|
||
|
||
switch (assistant->current_page->type)
|
||
{
|
||
case GTK_ASSISTANT_PAGE_INTRO:
|
||
gtk_widget_set_sensitive (assistant->cancel, TRUE);
|
||
gtk_widget_set_sensitive (assistant->forward, assistant->current_page->complete);
|
||
gtk_window_set_default_widget (GTK_WINDOW (assistant), assistant->forward);
|
||
gtk_widget_show (assistant->forward);
|
||
gtk_widget_hide (assistant->back);
|
||
gtk_widget_hide (assistant->apply);
|
||
gtk_widget_hide (assistant->close);
|
||
compute_last_button_state (assistant);
|
||
break;
|
||
case GTK_ASSISTANT_PAGE_CONFIRM:
|
||
gtk_widget_set_sensitive (assistant->cancel, TRUE);
|
||
gtk_widget_set_sensitive (assistant->back, TRUE);
|
||
gtk_widget_set_sensitive (assistant->apply, assistant->current_page->complete);
|
||
gtk_window_set_default_widget (GTK_WINDOW (assistant), assistant->apply);
|
||
gtk_widget_show (assistant->back);
|
||
gtk_widget_show (assistant->apply);
|
||
gtk_widget_hide (assistant->forward);
|
||
gtk_widget_hide (assistant->close);
|
||
gtk_widget_hide (assistant->last);
|
||
break;
|
||
case GTK_ASSISTANT_PAGE_CONTENT:
|
||
gtk_widget_set_sensitive (assistant->cancel, TRUE);
|
||
gtk_widget_set_sensitive (assistant->back, TRUE);
|
||
gtk_widget_set_sensitive (assistant->forward, assistant->current_page->complete);
|
||
gtk_window_set_default_widget (GTK_WINDOW (assistant), assistant->forward);
|
||
gtk_widget_show (assistant->back);
|
||
gtk_widget_show (assistant->forward);
|
||
gtk_widget_hide (assistant->apply);
|
||
gtk_widget_hide (assistant->close);
|
||
compute_last_button_state (assistant);
|
||
break;
|
||
case GTK_ASSISTANT_PAGE_SUMMARY:
|
||
gtk_widget_set_sensitive (assistant->close, assistant->current_page->complete);
|
||
gtk_window_set_default_widget (GTK_WINDOW (assistant), assistant->close);
|
||
gtk_widget_show (assistant->close);
|
||
gtk_widget_hide (assistant->back);
|
||
gtk_widget_hide (assistant->forward);
|
||
gtk_widget_hide (assistant->apply);
|
||
gtk_widget_hide (assistant->last);
|
||
break;
|
||
case GTK_ASSISTANT_PAGE_PROGRESS:
|
||
gtk_widget_set_sensitive (assistant->cancel, assistant->current_page->complete);
|
||
gtk_widget_set_sensitive (assistant->back, assistant->current_page->complete);
|
||
gtk_widget_set_sensitive (assistant->forward, assistant->current_page->complete);
|
||
gtk_window_set_default_widget (GTK_WINDOW (assistant), assistant->forward);
|
||
gtk_widget_show (assistant->back);
|
||
gtk_widget_hide (assistant->apply);
|
||
gtk_widget_hide (assistant->close);
|
||
gtk_widget_hide (assistant->last);
|
||
compute_progress_state (assistant);
|
||
break;
|
||
case GTK_ASSISTANT_PAGE_CUSTOM:
|
||
gtk_widget_hide (assistant->cancel);
|
||
gtk_widget_hide (assistant->back);
|
||
gtk_widget_hide (assistant->forward);
|
||
gtk_widget_hide (assistant->apply);
|
||
gtk_widget_hide (assistant->last);
|
||
gtk_widget_hide (assistant->close);
|
||
break;
|
||
default:
|
||
g_assert_not_reached ();
|
||
}
|
||
|
||
if (assistant->committed)
|
||
gtk_widget_hide (assistant->cancel);
|
||
else if (assistant->current_page->type == GTK_ASSISTANT_PAGE_SUMMARY ||
|
||
assistant->current_page->type == GTK_ASSISTANT_PAGE_CUSTOM)
|
||
gtk_widget_hide (assistant->cancel);
|
||
else
|
||
gtk_widget_show (assistant->cancel);
|
||
|
||
/* this is quite general, we don't want to
|
||
* go back if it's the first page
|
||
*/
|
||
if (!assistant->visited_pages)
|
||
gtk_widget_hide (assistant->back);
|
||
}
|
||
|
||
static gboolean
|
||
update_page_title_state (GtkAssistant *assistant, GList *list)
|
||
{
|
||
GtkAssistantPage *page, *other;
|
||
gboolean visible;
|
||
GList *l;
|
||
|
||
page = list->data;
|
||
|
||
if (page->title == NULL || page->title[0] == 0)
|
||
visible = FALSE;
|
||
else
|
||
visible = gtk_widget_get_visible (page->page);
|
||
|
||
if (page == assistant->current_page)
|
||
{
|
||
gtk_widget_set_visible (page->regular_title, FALSE);
|
||
gtk_widget_set_visible (page->current_title, visible);
|
||
}
|
||
else
|
||
{
|
||
/* If multiple consecutive pages have the same title,
|
||
* we only show it once, since it would otherwise look
|
||
* silly. We have to be a little careful, since we
|
||
* _always_ show the title of the current page.
|
||
*/
|
||
if (list->prev)
|
||
{
|
||
other = list->prev->data;
|
||
if (g_strcmp0 (page->title, other->title) == 0)
|
||
visible = FALSE;
|
||
}
|
||
for (l = list->next; l; l = l->next)
|
||
{
|
||
other = l->data;
|
||
if (g_strcmp0 (page->title, other->title) != 0)
|
||
break;
|
||
|
||
if (other == assistant->current_page)
|
||
{
|
||
visible = FALSE;
|
||
break;
|
||
}
|
||
}
|
||
|
||
gtk_widget_set_visible (page->regular_title, visible);
|
||
gtk_widget_set_visible (page->current_title, FALSE);
|
||
}
|
||
|
||
return visible;
|
||
}
|
||
|
||
static void
|
||
update_title_state (GtkAssistant *assistant)
|
||
{
|
||
GList *l;
|
||
gboolean show_titles;
|
||
|
||
show_titles = FALSE;
|
||
for (l = assistant->pages; l != NULL; l = l->next)
|
||
{
|
||
if (update_page_title_state (assistant, l))
|
||
show_titles = TRUE;
|
||
}
|
||
|
||
gtk_widget_set_visible (assistant->sidebar, show_titles);
|
||
}
|
||
|
||
static void
|
||
set_current_page (GtkAssistant *assistant,
|
||
int page_num)
|
||
{
|
||
assistant->current_page = (GtkAssistantPage *)g_list_nth_data (assistant->pages, page_num);
|
||
|
||
g_signal_emit (assistant, signals [PREPARE], 0, assistant->current_page->page);
|
||
/* do not continue if the prepare signal handler has already changed the
|
||
* current page */
|
||
if (assistant->current_page != (GtkAssistantPage *)g_list_nth_data (assistant->pages, page_num))
|
||
return;
|
||
|
||
update_title_state (assistant);
|
||
|
||
gtk_window_set_title (GTK_WINDOW (assistant), assistant->current_page->title);
|
||
|
||
gtk_stack_set_visible_child (GTK_STACK (assistant->content), assistant->current_page->page);
|
||
|
||
/* update buttons state, flow may have changed */
|
||
if (gtk_widget_get_mapped (GTK_WIDGET (assistant)))
|
||
update_buttons_state (assistant);
|
||
|
||
if (!gtk_widget_child_focus (assistant->current_page->page, GTK_DIR_TAB_FORWARD))
|
||
{
|
||
GtkWidget *button[6];
|
||
int i;
|
||
|
||
/* find the best button to focus */
|
||
button[0] = assistant->apply;
|
||
button[1] = assistant->close;
|
||
button[2] = assistant->forward;
|
||
button[3] = assistant->back;
|
||
button[4] = assistant->cancel;
|
||
button[5] = assistant->last;
|
||
for (i = 0; i < 6; i++)
|
||
{
|
||
if (gtk_widget_get_visible (button[i]) &&
|
||
gtk_widget_get_sensitive (button[i]))
|
||
{
|
||
gtk_widget_grab_focus (button[i]);
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
static int
|
||
compute_next_step (GtkAssistant *assistant)
|
||
{
|
||
GtkAssistantPage *page_info;
|
||
int current_page, n_pages, next_page;
|
||
|
||
current_page = gtk_assistant_get_current_page (assistant);
|
||
page_info = assistant->current_page;
|
||
n_pages = gtk_assistant_get_n_pages (assistant);
|
||
|
||
next_page = (assistant->forward_function) (current_page,
|
||
assistant->forward_function_data);
|
||
|
||
if (next_page >= 0 && next_page < n_pages)
|
||
{
|
||
assistant->visited_pages = g_slist_prepend (assistant->visited_pages, page_info);
|
||
set_current_page (assistant, next_page);
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
return FALSE;
|
||
}
|
||
|
||
static void
|
||
on_assistant_close (GtkWidget *widget,
|
||
GtkAssistant *assistant)
|
||
{
|
||
g_signal_emit (assistant, signals [CLOSE], 0, NULL);
|
||
}
|
||
|
||
static void
|
||
on_assistant_apply (GtkWidget *widget,
|
||
GtkAssistant *assistant)
|
||
{
|
||
gboolean success;
|
||
|
||
g_signal_emit (assistant, signals [APPLY], 0);
|
||
|
||
success = compute_next_step (assistant);
|
||
|
||
/* if the assistant hasn't switched to another page, just emit
|
||
* the CLOSE signal, it't the last page in the assistant flow
|
||
*/
|
||
if (!success)
|
||
g_signal_emit (assistant, signals [CLOSE], 0);
|
||
}
|
||
|
||
static void
|
||
on_assistant_forward (GtkWidget *widget,
|
||
GtkAssistant *assistant)
|
||
{
|
||
gtk_assistant_next_page (assistant);
|
||
}
|
||
|
||
static void
|
||
on_assistant_back (GtkWidget *widget,
|
||
GtkAssistant *assistant)
|
||
{
|
||
gtk_assistant_previous_page (assistant);
|
||
}
|
||
|
||
static void
|
||
on_assistant_cancel (GtkWidget *widget,
|
||
GtkAssistant *assistant)
|
||
{
|
||
g_signal_emit (assistant, signals [CANCEL], 0, NULL);
|
||
}
|
||
|
||
static void
|
||
on_assistant_last (GtkWidget *widget,
|
||
GtkAssistant *assistant)
|
||
{
|
||
while (assistant->current_page->type == GTK_ASSISTANT_PAGE_CONTENT &&
|
||
assistant->current_page->complete)
|
||
compute_next_step (assistant);
|
||
}
|
||
|
||
static gboolean
|
||
alternative_button_order (GtkAssistant *assistant)
|
||
{
|
||
gboolean result;
|
||
|
||
g_object_get (gtk_widget_get_settings (GTK_WIDGET (assistant)),
|
||
"gtk-alternative-button-order", &result,
|
||
NULL);
|
||
return result;
|
||
}
|
||
|
||
static void
|
||
on_page_page_notify (GtkWidget *widget,
|
||
GParamSpec *arg,
|
||
gpointer data)
|
||
{
|
||
GtkAssistant *assistant = GTK_ASSISTANT (data);
|
||
|
||
if (gtk_widget_get_mapped (GTK_WIDGET (assistant)))
|
||
{
|
||
update_buttons_state (assistant);
|
||
update_title_state (assistant);
|
||
}
|
||
}
|
||
|
||
static void
|
||
on_page_notify (GtkAssistantPage *page,
|
||
GParamSpec *arg,
|
||
gpointer data)
|
||
{
|
||
if (page->page)
|
||
on_page_page_notify (page->page, arg, data);
|
||
}
|
||
|
||
static void
|
||
assistant_remove_page (GtkAssistant *assistant,
|
||
GtkWidget *page)
|
||
{
|
||
GtkAssistantPage *page_info;
|
||
GList *page_node;
|
||
GList *element;
|
||
|
||
element = find_page (assistant, page);
|
||
if (!element)
|
||
return;
|
||
|
||
page_info = element->data;
|
||
|
||
/* If this is the current page, we need to switch away. */
|
||
if (page_info == assistant->current_page)
|
||
{
|
||
if (!compute_next_step (assistant))
|
||
{
|
||
/* The best we can do at this point is probably to pick
|
||
* the first visible page.
|
||
*/
|
||
page_node = assistant->pages;
|
||
|
||
while (page_node &&
|
||
!gtk_widget_get_visible (((GtkAssistantPage *) page_node->data)->page))
|
||
page_node = page_node->next;
|
||
|
||
if (page_node == element)
|
||
page_node = page_node->next;
|
||
|
||
if (page_node)
|
||
assistant->current_page = page_node->data;
|
||
else
|
||
assistant->current_page = NULL;
|
||
}
|
||
}
|
||
|
||
g_signal_handlers_disconnect_by_func (page_info->page, on_page_page_notify, assistant);
|
||
g_signal_handlers_disconnect_by_func (page_info, on_page_notify, assistant);
|
||
|
||
gtk_size_group_remove_widget (assistant->title_size_group, page_info->regular_title);
|
||
gtk_size_group_remove_widget (assistant->title_size_group, page_info->current_title);
|
||
|
||
gtk_box_remove (GTK_BOX (assistant->sidebar), page_info->regular_title);
|
||
gtk_box_remove (GTK_BOX (assistant->sidebar), page_info->current_title);
|
||
|
||
assistant->pages = g_list_remove_link (assistant->pages, element);
|
||
assistant->visited_pages = g_slist_remove_all (assistant->visited_pages, page_info);
|
||
|
||
g_object_unref (page_info);
|
||
|
||
g_list_free_1 (element);
|
||
|
||
if (gtk_widget_get_mapped (GTK_WIDGET (assistant)))
|
||
{
|
||
update_buttons_state (assistant);
|
||
update_actions_size (assistant);
|
||
}
|
||
}
|
||
|
||
static void
|
||
gtk_assistant_init (GtkAssistant *assistant)
|
||
{
|
||
gtk_widget_add_css_class (GTK_WIDGET (assistant), "assistant");
|
||
|
||
assistant->pages = NULL;
|
||
assistant->current_page = NULL;
|
||
assistant->visited_pages = NULL;
|
||
|
||
assistant->forward_function = default_forward_function;
|
||
assistant->forward_function_data = assistant;
|
||
assistant->forward_data_destroy = NULL;
|
||
|
||
g_object_get (gtk_widget_get_settings (GTK_WIDGET (assistant)),
|
||
"gtk-dialogs-use-header", &assistant->use_header_bar,
|
||
NULL);
|
||
|
||
gtk_widget_init_template (GTK_WIDGET (assistant));
|
||
|
||
if (alternative_button_order (assistant))
|
||
{
|
||
GList *buttons, *l;
|
||
GtkWidget *child;
|
||
|
||
buttons = NULL;
|
||
for (child = gtk_widget_get_last_child (assistant->action_area);
|
||
child != NULL;
|
||
child = gtk_widget_get_prev_sibling (child))
|
||
buttons = g_list_prepend (buttons, child);
|
||
|
||
for (l = buttons; l; l = l->next)
|
||
gtk_box_reorder_child_after (GTK_BOX (assistant->action_area), GTK_WIDGET (l->data), NULL);
|
||
|
||
g_list_free (buttons);
|
||
}
|
||
}
|
||
|
||
static void
|
||
gtk_assistant_page_set_property (GObject *object,
|
||
guint property_id,
|
||
const GValue *value,
|
||
GParamSpec *pspec)
|
||
{
|
||
GtkAssistantPage *page = GTK_ASSISTANT_PAGE (object);
|
||
GtkWidget *assistant = NULL;
|
||
|
||
if (page->page)
|
||
assistant = gtk_widget_get_ancestor (page->page, GTK_TYPE_ASSISTANT);
|
||
|
||
switch (property_id)
|
||
{
|
||
case CHILD_PROP_CHILD:
|
||
g_set_object (&page->page, g_value_get_object (value));
|
||
break;
|
||
|
||
case CHILD_PROP_PAGE_TYPE:
|
||
if (page->type != g_value_get_enum (value))
|
||
{
|
||
page->type = g_value_get_enum (value);
|
||
|
||
/* backwards compatibility to the era before fixing bug 604289 */
|
||
if (page->type == GTK_ASSISTANT_PAGE_SUMMARY && !page->complete_set)
|
||
{
|
||
page->complete = TRUE;
|
||
page->complete_set = FALSE;
|
||
}
|
||
|
||
/* Always set buttons state, a change in a future page
|
||
* might change current page buttons
|
||
*/
|
||
if (assistant)
|
||
update_buttons_state (GTK_ASSISTANT (assistant));
|
||
g_object_notify (G_OBJECT (page), "page-type");
|
||
}
|
||
break;
|
||
|
||
case CHILD_PROP_PAGE_TITLE:
|
||
g_free (page->title);
|
||
page->title = g_value_dup_string (value);
|
||
|
||
if (assistant)
|
||
{
|
||
gtk_label_set_text ((GtkLabel*) page->regular_title, page->title);
|
||
gtk_label_set_text ((GtkLabel*) page->current_title, page->title);
|
||
update_title_state (GTK_ASSISTANT (assistant));
|
||
}
|
||
|
||
g_object_notify (G_OBJECT (page), "title");
|
||
|
||
break;
|
||
|
||
case CHILD_PROP_PAGE_COMPLETE:
|
||
if (page->complete != g_value_get_boolean (value))
|
||
{
|
||
page->complete = g_value_get_boolean (value);
|
||
page->complete_set = TRUE;
|
||
|
||
/* Always set buttons state, a change in a future page
|
||
* might change current page buttons
|
||
*/
|
||
if (assistant)
|
||
update_buttons_state (GTK_ASSISTANT (assistant));
|
||
g_object_notify (G_OBJECT (page), "complete");
|
||
}
|
||
break;
|
||
|
||
default:
|
||
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
|
||
break;
|
||
}
|
||
}
|
||
|
||
static void
|
||
gtk_assistant_page_get_property (GObject *object,
|
||
guint property_id,
|
||
GValue *value,
|
||
GParamSpec *pspec)
|
||
{
|
||
GtkAssistantPage *page = GTK_ASSISTANT_PAGE (object);
|
||
|
||
switch (property_id)
|
||
{
|
||
case CHILD_PROP_CHILD:
|
||
g_value_set_object (value, page->page);
|
||
break;
|
||
|
||
case CHILD_PROP_PAGE_TYPE:
|
||
g_value_set_enum (value, page->type);
|
||
break;
|
||
|
||
case CHILD_PROP_PAGE_TITLE:
|
||
g_value_set_string (value, page->title);
|
||
break;
|
||
|
||
case CHILD_PROP_PAGE_COMPLETE:
|
||
g_value_set_boolean (value, page->complete);
|
||
break;
|
||
|
||
default:
|
||
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
|
||
break;
|
||
}
|
||
}
|
||
|
||
static void
|
||
gtk_assistant_dispose (GObject *object)
|
||
{
|
||
GtkAssistant *assistant = GTK_ASSISTANT (object);
|
||
|
||
if (assistant->model && g_list_length (assistant->pages))
|
||
{
|
||
g_list_model_items_changed (G_LIST_MODEL (assistant->model), 0, g_list_length (assistant->pages), 0);
|
||
g_object_notify_by_pspec (G_OBJECT (assistant->model), pages_properties[PAGES_PROP_N_ITEMS]);
|
||
}
|
||
|
||
/* We set current to NULL so that the remove code doesn't try
|
||
* to do anything funny
|
||
*/
|
||
assistant->current_page = NULL;
|
||
|
||
if (assistant->content)
|
||
{
|
||
while (assistant->pages)
|
||
gtk_assistant_remove_page (assistant, 0);
|
||
|
||
assistant->content = NULL;
|
||
}
|
||
|
||
assistant->sidebar = NULL;
|
||
assistant->action_area = NULL;
|
||
|
||
if (assistant->forward_function)
|
||
{
|
||
if (assistant->forward_function_data &&
|
||
assistant->forward_data_destroy)
|
||
assistant->forward_data_destroy (assistant->forward_function_data);
|
||
|
||
assistant->forward_function = NULL;
|
||
assistant->forward_function_data = NULL;
|
||
assistant->forward_data_destroy = NULL;
|
||
}
|
||
|
||
if (assistant->visited_pages)
|
||
{
|
||
g_slist_free (assistant->visited_pages);
|
||
assistant->visited_pages = NULL;
|
||
}
|
||
|
||
G_OBJECT_CLASS (gtk_assistant_parent_class)->dispose (object);
|
||
}
|
||
|
||
static GList*
|
||
find_page (GtkAssistant *assistant,
|
||
GtkWidget *page)
|
||
{
|
||
GList *child = assistant->pages;
|
||
|
||
while (child)
|
||
{
|
||
GtkAssistantPage *page_info = child->data;
|
||
if (page_info->page == page)
|
||
return child;
|
||
|
||
child = child->next;
|
||
}
|
||
|
||
return NULL;
|
||
}
|
||
|
||
static void
|
||
gtk_assistant_map (GtkWidget *widget)
|
||
{
|
||
GtkAssistant *assistant = GTK_ASSISTANT (widget);
|
||
GList *page_node;
|
||
GtkAssistantPage *page;
|
||
int page_num;
|
||
|
||
/* if there's no default page, pick the first one */
|
||
page = NULL;
|
||
page_num = 0;
|
||
if (!assistant->current_page)
|
||
{
|
||
page_node = assistant->pages;
|
||
|
||
while (page_node && !gtk_widget_get_visible (((GtkAssistantPage *) page_node->data)->page))
|
||
{
|
||
page_node = page_node->next;
|
||
page_num++;
|
||
}
|
||
|
||
if (page_node)
|
||
page = page_node->data;
|
||
}
|
||
|
||
if (page && gtk_widget_get_visible (page->page))
|
||
set_current_page (assistant, page_num);
|
||
|
||
update_buttons_state (assistant);
|
||
update_actions_size (assistant);
|
||
update_title_state (assistant);
|
||
|
||
GTK_WIDGET_CLASS (gtk_assistant_parent_class)->map (widget);
|
||
}
|
||
|
||
static void
|
||
gtk_assistant_unmap (GtkWidget *widget)
|
||
{
|
||
GtkAssistant *assistant = GTK_ASSISTANT (widget);
|
||
|
||
g_slist_free (assistant->visited_pages);
|
||
assistant->visited_pages = NULL;
|
||
assistant->current_page = NULL;
|
||
|
||
GTK_WIDGET_CLASS (gtk_assistant_parent_class)->unmap (widget);
|
||
}
|
||
|
||
static gboolean
|
||
gtk_assistant_close_request (GtkWindow *window)
|
||
{
|
||
GtkAssistant *assistant = GTK_ASSISTANT (window);
|
||
|
||
/* Do not allow cancelling in the middle of a progress page */
|
||
if (assistant->current_page &&
|
||
(assistant->current_page->type != GTK_ASSISTANT_PAGE_PROGRESS ||
|
||
assistant->current_page->complete))
|
||
g_signal_emit (assistant, signals [CANCEL], 0, NULL);
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
/**
|
||
* gtk_assistant_new:
|
||
*
|
||
* Creates a new `GtkAssistant`.
|
||
*
|
||
* Returns: a newly created `GtkAssistant`
|
||
*/
|
||
GtkWidget*
|
||
gtk_assistant_new (void)
|
||
{
|
||
GtkWidget *assistant;
|
||
|
||
assistant = g_object_new (GTK_TYPE_ASSISTANT, NULL);
|
||
|
||
return assistant;
|
||
}
|
||
|
||
/**
|
||
* gtk_assistant_get_current_page:
|
||
* @assistant: a `GtkAssistant`
|
||
*
|
||
* Returns the page number of the current page.
|
||
*
|
||
* Returns: The index (starting from 0) of the current
|
||
* page in the @assistant, or -1 if the @assistant has no pages,
|
||
* or no current page
|
||
*/
|
||
int
|
||
gtk_assistant_get_current_page (GtkAssistant *assistant)
|
||
{
|
||
g_return_val_if_fail (GTK_IS_ASSISTANT (assistant), -1);
|
||
|
||
if (!assistant->pages || !assistant->current_page)
|
||
return -1;
|
||
|
||
return g_list_index (assistant->pages, assistant->current_page);
|
||
}
|
||
|
||
/**
|
||
* gtk_assistant_set_current_page:
|
||
* @assistant: a `GtkAssistant`
|
||
* @page_num: index of the page to switch to, starting from 0.
|
||
* If negative, the last page will be used. If greater
|
||
* than the number of pages in the @assistant, nothing
|
||
* will be done.
|
||
*
|
||
* Switches the page to @page_num.
|
||
*
|
||
* Note that this will only be necessary in custom buttons,
|
||
* as the @assistant flow can be set with
|
||
* gtk_assistant_set_forward_page_func().
|
||
*/
|
||
void
|
||
gtk_assistant_set_current_page (GtkAssistant *assistant,
|
||
int page_num)
|
||
{
|
||
GtkAssistantPage *page;
|
||
|
||
g_return_if_fail (GTK_IS_ASSISTANT (assistant));
|
||
g_return_if_fail (assistant->pages != NULL);
|
||
|
||
if (page_num >= 0)
|
||
page = (GtkAssistantPage *) g_list_nth_data (assistant->pages, page_num);
|
||
else
|
||
{
|
||
page = (GtkAssistantPage *) g_list_last (assistant->pages)->data;
|
||
page_num = g_list_length (assistant->pages);
|
||
}
|
||
|
||
g_return_if_fail (page != NULL);
|
||
|
||
if (assistant->current_page == page)
|
||
return;
|
||
|
||
/* only add the page to the visited list if the assistant is mapped,
|
||
* if not, just use it as an initial page setting, for the cases where
|
||
* the initial page is != to 0
|
||
*/
|
||
if (gtk_widget_get_mapped (GTK_WIDGET (assistant)))
|
||
assistant->visited_pages = g_slist_prepend (assistant->visited_pages,
|
||
assistant->current_page);
|
||
|
||
set_current_page (assistant, page_num);
|
||
}
|
||
|
||
/**
|
||
* gtk_assistant_next_page:
|
||
* @assistant: a `GtkAssistant`
|
||
*
|
||
* Navigate to the next page.
|
||
*
|
||
* It is a programming error to call this function when
|
||
* there is no next page.
|
||
*
|
||
* This function is for use when creating pages of the
|
||
* %GTK_ASSISTANT_PAGE_CUSTOM type.
|
||
*/
|
||
void
|
||
gtk_assistant_next_page (GtkAssistant *assistant)
|
||
{
|
||
g_return_if_fail (GTK_IS_ASSISTANT (assistant));
|
||
|
||
if (!compute_next_step (assistant))
|
||
g_critical ("Page flow is broken.\n"
|
||
"You may want to end it with a page of type\n"
|
||
"GTK_ASSISTANT_PAGE_CONFIRM or GTK_ASSISTANT_PAGE_SUMMARY");
|
||
}
|
||
|
||
/**
|
||
* gtk_assistant_previous_page:
|
||
* @assistant: a `GtkAssistant`
|
||
*
|
||
* Navigate to the previous visited page.
|
||
*
|
||
* It is a programming error to call this function when
|
||
* no previous page is available.
|
||
*
|
||
* This function is for use when creating pages of the
|
||
* %GTK_ASSISTANT_PAGE_CUSTOM type.
|
||
*/
|
||
void
|
||
gtk_assistant_previous_page (GtkAssistant *assistant)
|
||
{
|
||
GtkAssistantPage *page_info;
|
||
GSList *page_node;
|
||
|
||
g_return_if_fail (GTK_IS_ASSISTANT (assistant));
|
||
|
||
/* skip the progress pages when going back */
|
||
do
|
||
{
|
||
page_node = assistant->visited_pages;
|
||
|
||
g_return_if_fail (page_node != NULL);
|
||
|
||
assistant->visited_pages = assistant->visited_pages->next;
|
||
page_info = (GtkAssistantPage *) page_node->data;
|
||
g_slist_free_1 (page_node);
|
||
}
|
||
while (page_info->type == GTK_ASSISTANT_PAGE_PROGRESS ||
|
||
!gtk_widget_get_visible (page_info->page));
|
||
|
||
set_current_page (assistant, g_list_index (assistant->pages, page_info));
|
||
}
|
||
|
||
/**
|
||
* gtk_assistant_get_n_pages:
|
||
* @assistant: a `GtkAssistant`
|
||
*
|
||
* Returns the number of pages in the @assistant
|
||
*
|
||
* Returns: the number of pages in the @assistant
|
||
*/
|
||
int
|
||
gtk_assistant_get_n_pages (GtkAssistant *assistant)
|
||
{
|
||
g_return_val_if_fail (GTK_IS_ASSISTANT (assistant), 0);
|
||
|
||
return g_list_length (assistant->pages);
|
||
}
|
||
|
||
/**
|
||
* gtk_assistant_get_nth_page:
|
||
* @assistant: a `GtkAssistant`
|
||
* @page_num: the index of a page in the @assistant,
|
||
* or -1 to get the last page
|
||
*
|
||
* Returns the child widget contained in page number @page_num.
|
||
*
|
||
* Returns: (nullable) (transfer none): the child widget, or %NULL
|
||
* if @page_num is out of bounds
|
||
*/
|
||
GtkWidget*
|
||
gtk_assistant_get_nth_page (GtkAssistant *assistant,
|
||
int page_num)
|
||
{
|
||
GtkAssistantPage *page;
|
||
GList *elem;
|
||
|
||
g_return_val_if_fail (GTK_IS_ASSISTANT (assistant), NULL);
|
||
g_return_val_if_fail (page_num >= -1, NULL);
|
||
|
||
if (page_num == -1)
|
||
elem = g_list_last (assistant->pages);
|
||
else
|
||
elem = g_list_nth (assistant->pages, page_num);
|
||
|
||
if (!elem)
|
||
return NULL;
|
||
|
||
page = (GtkAssistantPage *) elem->data;
|
||
|
||
return page->page;
|
||
}
|
||
|
||
/**
|
||
* gtk_assistant_prepend_page:
|
||
* @assistant: a `GtkAssistant`
|
||
* @page: a `GtkWidget`
|
||
*
|
||
* Prepends a page to the @assistant.
|
||
*
|
||
* Returns: the index (starting at 0) of the inserted page
|
||
*/
|
||
int
|
||
gtk_assistant_prepend_page (GtkAssistant *assistant,
|
||
GtkWidget *page)
|
||
{
|
||
g_return_val_if_fail (GTK_IS_ASSISTANT (assistant), 0);
|
||
g_return_val_if_fail (GTK_IS_WIDGET (page), 0);
|
||
|
||
return gtk_assistant_insert_page (assistant, page, 0);
|
||
}
|
||
|
||
/**
|
||
* gtk_assistant_append_page:
|
||
* @assistant: a `GtkAssistant`
|
||
* @page: a `GtkWidget`
|
||
*
|
||
* Appends a page to the @assistant.
|
||
*
|
||
* Returns: the index (starting at 0) of the inserted page
|
||
*/
|
||
int
|
||
gtk_assistant_append_page (GtkAssistant *assistant,
|
||
GtkWidget *page)
|
||
{
|
||
g_return_val_if_fail (GTK_IS_ASSISTANT (assistant), 0);
|
||
g_return_val_if_fail (GTK_IS_WIDGET (page), 0);
|
||
|
||
return gtk_assistant_insert_page (assistant, page, -1);
|
||
}
|
||
|
||
/**
|
||
* gtk_assistant_insert_page:
|
||
* @assistant: a `GtkAssistant`
|
||
* @page: a `GtkWidget`
|
||
* @position: the index (starting at 0) at which to insert the page,
|
||
* or -1 to append the page to the @assistant
|
||
*
|
||
* Inserts a page in the @assistant at a given position.
|
||
*
|
||
* Returns: the index (starting from 0) of the inserted page
|
||
*/
|
||
int
|
||
gtk_assistant_insert_page (GtkAssistant *assistant,
|
||
GtkWidget *page,
|
||
int position)
|
||
{
|
||
GtkAssistantPage *page_info;
|
||
|
||
g_return_val_if_fail (GTK_IS_ASSISTANT (assistant), 0);
|
||
g_return_val_if_fail (GTK_IS_WIDGET (page), 0);
|
||
g_return_val_if_fail (gtk_widget_get_parent (page) == NULL, 0);
|
||
|
||
page_info = g_object_new (GTK_TYPE_ASSISTANT_PAGE, NULL);
|
||
page_info->page = g_object_ref (page);
|
||
|
||
return gtk_assistant_add_page (assistant, page_info, position);
|
||
|
||
g_object_unref (page_info);
|
||
}
|
||
|
||
static int
|
||
gtk_assistant_add_page (GtkAssistant *assistant,
|
||
GtkAssistantPage *page_info,
|
||
int position)
|
||
{
|
||
int n_pages;
|
||
GtkWidget *sibling;
|
||
char *name;
|
||
|
||
page_info->regular_title = gtk_label_new (page_info->title);
|
||
page_info->current_title = gtk_label_new (page_info->title);
|
||
|
||
gtk_label_set_xalign (GTK_LABEL (page_info->regular_title), 0.0);
|
||
gtk_label_set_xalign (GTK_LABEL (page_info->current_title), 0.0);
|
||
|
||
gtk_widget_show (page_info->regular_title);
|
||
gtk_widget_hide (page_info->current_title);
|
||
|
||
gtk_widget_add_css_class (page_info->current_title, "highlight");
|
||
|
||
gtk_size_group_add_widget (assistant->title_size_group, page_info->regular_title);
|
||
gtk_size_group_add_widget (assistant->title_size_group, page_info->current_title);
|
||
|
||
g_signal_connect (G_OBJECT (page_info->page), "notify::visible",
|
||
G_CALLBACK (on_page_page_notify), assistant);
|
||
|
||
g_signal_connect (G_OBJECT (page_info), "notify::page-title",
|
||
G_CALLBACK (on_page_notify), assistant);
|
||
|
||
g_signal_connect (G_OBJECT (page_info), "notify::page-type",
|
||
G_CALLBACK (on_page_notify), assistant);
|
||
|
||
n_pages = g_list_length (assistant->pages);
|
||
|
||
if (position < 0 || position > n_pages)
|
||
position = n_pages;
|
||
|
||
assistant->pages = g_list_insert (assistant->pages, g_object_ref (page_info), position);
|
||
|
||
if (position == 0)
|
||
sibling = NULL;
|
||
else
|
||
{
|
||
int i;
|
||
sibling = gtk_widget_get_first_child (assistant->sidebar);
|
||
for (i = 1; i < 2 * position; i++)
|
||
sibling = gtk_widget_get_next_sibling (sibling);
|
||
}
|
||
|
||
gtk_box_insert_child_after (GTK_BOX (assistant->sidebar), page_info->current_title, sibling);
|
||
gtk_box_insert_child_after (GTK_BOX (assistant->sidebar), page_info->regular_title, sibling);
|
||
|
||
name = g_strdup_printf ("%p", page_info->page);
|
||
gtk_stack_add_named (GTK_STACK (assistant->content), page_info->page, name);
|
||
g_free (name);
|
||
|
||
if (gtk_widget_get_mapped (GTK_WIDGET (assistant)))
|
||
{
|
||
update_buttons_state (assistant);
|
||
update_actions_size (assistant);
|
||
}
|
||
|
||
if (assistant->model)
|
||
{
|
||
g_list_model_items_changed (assistant->model, position, 0, 1);
|
||
g_object_notify_by_pspec (G_OBJECT (assistant->model), pages_properties[PAGES_PROP_N_ITEMS]);
|
||
}
|
||
|
||
return position;
|
||
}
|
||
|
||
/**
|
||
* gtk_assistant_remove_page:
|
||
* @assistant: a `GtkAssistant`
|
||
* @page_num: the index of a page in the @assistant,
|
||
* or -1 to remove the last page
|
||
*
|
||
* Removes the @page_num’s page from @assistant.
|
||
*/
|
||
void
|
||
gtk_assistant_remove_page (GtkAssistant *assistant,
|
||
int page_num)
|
||
{
|
||
GtkWidget *page;
|
||
|
||
g_return_if_fail (GTK_IS_ASSISTANT (assistant));
|
||
|
||
page = gtk_assistant_get_nth_page (assistant, page_num);
|
||
if (page)
|
||
assistant_remove_page (assistant, page);
|
||
|
||
if (assistant->model)
|
||
{
|
||
g_list_model_items_changed (assistant->model, page_num, 1, 0);
|
||
g_object_notify_by_pspec (G_OBJECT (assistant->model), pages_properties[PAGES_PROP_N_ITEMS]);
|
||
}
|
||
}
|
||
|
||
/**
|
||
* gtk_assistant_set_forward_page_func:
|
||
* @assistant: a `GtkAssistant`
|
||
* @page_func: (nullable): the `GtkAssistantPageFunc`, or %NULL
|
||
* to use the default one
|
||
* @data: user data for @page_func
|
||
* @destroy: destroy notifier for @data
|
||
*
|
||
* Sets the page forwarding function to be @page_func.
|
||
*
|
||
* This function will be used to determine what will be
|
||
* the next page when the user presses the forward button.
|
||
* Setting @page_func to %NULL will make the assistant to
|
||
* use the default forward function, which just goes to the
|
||
* next visible page.
|
||
*/
|
||
void
|
||
gtk_assistant_set_forward_page_func (GtkAssistant *assistant,
|
||
GtkAssistantPageFunc page_func,
|
||
gpointer data,
|
||
GDestroyNotify destroy)
|
||
{
|
||
g_return_if_fail (GTK_IS_ASSISTANT (assistant));
|
||
|
||
if (assistant->forward_data_destroy &&
|
||
assistant->forward_function_data)
|
||
(*assistant->forward_data_destroy) (assistant->forward_function_data);
|
||
|
||
if (page_func)
|
||
{
|
||
assistant->forward_function = page_func;
|
||
assistant->forward_function_data = data;
|
||
assistant->forward_data_destroy = destroy;
|
||
}
|
||
else
|
||
{
|
||
assistant->forward_function = default_forward_function;
|
||
assistant->forward_function_data = assistant;
|
||
assistant->forward_data_destroy = NULL;
|
||
}
|
||
|
||
/* Page flow has possibly changed, so the
|
||
* buttons state might need to change too
|
||
*/
|
||
if (gtk_widget_get_mapped (GTK_WIDGET (assistant)))
|
||
update_buttons_state (assistant);
|
||
}
|
||
|
||
static void
|
||
add_to_action_area (GtkAssistant *assistant,
|
||
GtkWidget *child)
|
||
{
|
||
gtk_widget_set_valign (child, GTK_ALIGN_BASELINE);
|
||
|
||
gtk_box_append (GTK_BOX (assistant->action_area), child);
|
||
}
|
||
|
||
/**
|
||
* gtk_assistant_add_action_widget:
|
||
* @assistant: a `GtkAssistant`
|
||
* @child: a `GtkWidget`
|
||
*
|
||
* Adds a widget to the action area of a `GtkAssistant`.
|
||
*/
|
||
void
|
||
gtk_assistant_add_action_widget (GtkAssistant *assistant,
|
||
GtkWidget *child)
|
||
{
|
||
g_return_if_fail (GTK_IS_ASSISTANT (assistant));
|
||
g_return_if_fail (GTK_IS_WIDGET (child));
|
||
|
||
if (GTK_IS_BUTTON (child))
|
||
{
|
||
gtk_size_group_add_widget (assistant->button_size_group, child);
|
||
assistant->extra_buttons += 1;
|
||
if (gtk_widget_get_mapped (GTK_WIDGET (assistant)))
|
||
update_actions_size (assistant);
|
||
}
|
||
|
||
if (assistant->constructed && assistant->use_header_bar)
|
||
add_to_header_bar (assistant, child);
|
||
else
|
||
add_to_action_area (assistant, child);
|
||
}
|
||
|
||
/**
|
||
* gtk_assistant_remove_action_widget:
|
||
* @assistant: a `GtkAssistant`
|
||
* @child: a `GtkWidget`
|
||
*
|
||
* Removes a widget from the action area of a `GtkAssistant`.
|
||
*/
|
||
void
|
||
gtk_assistant_remove_action_widget (GtkAssistant *assistant,
|
||
GtkWidget *child)
|
||
{
|
||
g_return_if_fail (GTK_IS_ASSISTANT (assistant));
|
||
g_return_if_fail (GTK_IS_WIDGET (child));
|
||
|
||
if (GTK_IS_BUTTON (child))
|
||
{
|
||
gtk_size_group_remove_widget (assistant->button_size_group, child);
|
||
assistant->extra_buttons -= 1;
|
||
if (gtk_widget_get_mapped (GTK_WIDGET (assistant)))
|
||
update_actions_size (assistant);
|
||
}
|
||
|
||
gtk_box_remove (GTK_BOX (assistant->action_area), child);
|
||
}
|
||
|
||
/**
|
||
* gtk_assistant_set_page_title:
|
||
* @assistant: a `GtkAssistant`
|
||
* @page: a page of @assistant
|
||
* @title: the new title for @page
|
||
*
|
||
* Sets a title for @page.
|
||
*
|
||
* The title is displayed in the header area of the assistant
|
||
* when @page is the current page.
|
||
*/
|
||
void
|
||
gtk_assistant_set_page_title (GtkAssistant *assistant,
|
||
GtkWidget *page,
|
||
const char *title)
|
||
{
|
||
GtkAssistantPage *page_info;
|
||
GList *child;
|
||
|
||
g_return_if_fail (GTK_IS_ASSISTANT (assistant));
|
||
g_return_if_fail (GTK_IS_WIDGET (page));
|
||
|
||
child = find_page (assistant, page);
|
||
|
||
g_return_if_fail (child != NULL);
|
||
|
||
page_info = (GtkAssistantPage*) child->data;
|
||
|
||
g_object_set (page_info, "title", title, NULL);
|
||
}
|
||
|
||
/**
|
||
* gtk_assistant_get_page_title:
|
||
* @assistant: a `GtkAssistant`
|
||
* @page: a page of @assistant
|
||
*
|
||
* Gets the title for @page.
|
||
*
|
||
* Returns: the title for @page
|
||
*/
|
||
const char *
|
||
gtk_assistant_get_page_title (GtkAssistant *assistant,
|
||
GtkWidget *page)
|
||
{
|
||
GtkAssistantPage *page_info;
|
||
GList *child;
|
||
|
||
g_return_val_if_fail (GTK_IS_ASSISTANT (assistant), NULL);
|
||
g_return_val_if_fail (GTK_IS_WIDGET (page), NULL);
|
||
|
||
child = find_page (assistant, page);
|
||
|
||
g_return_val_if_fail (child != NULL, NULL);
|
||
|
||
page_info = (GtkAssistantPage*) child->data;
|
||
|
||
return page_info->title;
|
||
}
|
||
|
||
/**
|
||
* gtk_assistant_set_page_type:
|
||
* @assistant: a `GtkAssistant`
|
||
* @page: a page of @assistant
|
||
* @type: the new type for @page
|
||
*
|
||
* Sets the page type for @page.
|
||
*
|
||
* The page type determines the page behavior in the @assistant.
|
||
*/
|
||
void
|
||
gtk_assistant_set_page_type (GtkAssistant *assistant,
|
||
GtkWidget *page,
|
||
GtkAssistantPageType type)
|
||
{
|
||
GtkAssistantPage *page_info;
|
||
GList *child;
|
||
|
||
g_return_if_fail (GTK_IS_ASSISTANT (assistant));
|
||
g_return_if_fail (GTK_IS_WIDGET (page));
|
||
|
||
child = find_page (assistant, page);
|
||
|
||
g_return_if_fail (child != NULL);
|
||
|
||
page_info = (GtkAssistantPage*) child->data;
|
||
|
||
g_object_set (page_info, "page-type", type, NULL);
|
||
}
|
||
|
||
/**
|
||
* gtk_assistant_get_page_type:
|
||
* @assistant: a `GtkAssistant`
|
||
* @page: a page of @assistant
|
||
*
|
||
* Gets the page type of @page.
|
||
*
|
||
* Returns: the page type of @page
|
||
*/
|
||
GtkAssistantPageType
|
||
gtk_assistant_get_page_type (GtkAssistant *assistant,
|
||
GtkWidget *page)
|
||
{
|
||
GtkAssistantPage *page_info;
|
||
GList *child;
|
||
|
||
g_return_val_if_fail (GTK_IS_ASSISTANT (assistant), GTK_ASSISTANT_PAGE_CONTENT);
|
||
g_return_val_if_fail (GTK_IS_WIDGET (page), GTK_ASSISTANT_PAGE_CONTENT);
|
||
|
||
child = find_page (assistant, page);
|
||
|
||
g_return_val_if_fail (child != NULL, GTK_ASSISTANT_PAGE_CONTENT);
|
||
|
||
page_info = (GtkAssistantPage*) child->data;
|
||
|
||
return page_info->type;
|
||
}
|
||
|
||
/**
|
||
* gtk_assistant_set_page_complete:
|
||
* @assistant: a `GtkAssistant`
|
||
* @page: a page of @assistant
|
||
* @complete: the completeness status of the page
|
||
*
|
||
* Sets whether @page contents are complete.
|
||
*
|
||
* This will make @assistant update the buttons state
|
||
* to be able to continue the task.
|
||
*/
|
||
void
|
||
gtk_assistant_set_page_complete (GtkAssistant *assistant,
|
||
GtkWidget *page,
|
||
gboolean complete)
|
||
{
|
||
GtkAssistantPage *page_info;
|
||
GList *child;
|
||
|
||
g_return_if_fail (GTK_IS_ASSISTANT (assistant));
|
||
g_return_if_fail (GTK_IS_WIDGET (page));
|
||
|
||
child = find_page (assistant, page);
|
||
|
||
g_return_if_fail (child != NULL);
|
||
|
||
page_info = (GtkAssistantPage*) child->data;
|
||
|
||
g_object_set (page_info, "complete", complete, NULL);
|
||
}
|
||
|
||
/**
|
||
* gtk_assistant_get_page_complete:
|
||
* @assistant: a `GtkAssistant`
|
||
* @page: a page of @assistant
|
||
*
|
||
* Gets whether @page is complete.
|
||
*
|
||
* Returns: %TRUE if @page is complete.
|
||
*/
|
||
gboolean
|
||
gtk_assistant_get_page_complete (GtkAssistant *assistant,
|
||
GtkWidget *page)
|
||
{
|
||
GtkAssistantPage *page_info;
|
||
GList *child;
|
||
|
||
g_return_val_if_fail (GTK_IS_ASSISTANT (assistant), FALSE);
|
||
g_return_val_if_fail (GTK_IS_WIDGET (page), FALSE);
|
||
|
||
child = find_page (assistant, page);
|
||
|
||
g_return_val_if_fail (child != NULL, FALSE);
|
||
|
||
page_info = (GtkAssistantPage*) child->data;
|
||
|
||
return page_info->complete;
|
||
}
|
||
|
||
/**
|
||
* gtk_assistant_update_buttons_state:
|
||
* @assistant: a `GtkAssistant`
|
||
*
|
||
* Forces @assistant to recompute the buttons state.
|
||
*
|
||
* GTK automatically takes care of this in most situations,
|
||
* e.g. when the user goes to a different page, or when the
|
||
* visibility or completeness of a page changes.
|
||
*
|
||
* One situation where it can be necessary to call this
|
||
* function is when changing a value on the current page
|
||
* affects the future page flow of the assistant.
|
||
*/
|
||
void
|
||
gtk_assistant_update_buttons_state (GtkAssistant *assistant)
|
||
{
|
||
g_return_if_fail (GTK_IS_ASSISTANT (assistant));
|
||
|
||
update_buttons_state (assistant);
|
||
}
|
||
|
||
/**
|
||
* gtk_assistant_commit:
|
||
* @assistant: a `GtkAssistant`
|
||
*
|
||
* Erases the visited page history.
|
||
*
|
||
* GTK will then hide the back button on the current page,
|
||
* and removes the cancel button from subsequent pages.
|
||
*
|
||
* Use this when the information provided up to the current
|
||
* page is hereafter deemed permanent and cannot be modified
|
||
* or undone. For example, showing a progress page to track
|
||
* a long-running, unreversible operation after the user has
|
||
* clicked apply on a confirmation page.
|
||
*/
|
||
void
|
||
gtk_assistant_commit (GtkAssistant *assistant)
|
||
{
|
||
g_return_if_fail (GTK_IS_ASSISTANT (assistant));
|
||
|
||
g_slist_free (assistant->visited_pages);
|
||
assistant->visited_pages = NULL;
|
||
|
||
assistant->committed = TRUE;
|
||
|
||
update_buttons_state (assistant);
|
||
}
|
||
|
||
/* buildable implementation */
|
||
|
||
static GtkBuildableIface *parent_buildable_iface;
|
||
|
||
static void
|
||
gtk_assistant_buildable_interface_init (GtkBuildableIface *iface)
|
||
{
|
||
parent_buildable_iface = g_type_interface_peek_parent (iface);
|
||
|
||
iface->custom_tag_start = gtk_assistant_buildable_custom_tag_start;
|
||
iface->custom_finished = gtk_assistant_buildable_custom_finished;
|
||
iface->add_child = gtk_assistant_buildable_add_child;
|
||
}
|
||
|
||
static void
|
||
gtk_assistant_buildable_add_child (GtkBuildable *buildable,
|
||
GtkBuilder *builder,
|
||
GObject *child,
|
||
const char *type)
|
||
{
|
||
if (GTK_IS_ASSISTANT_PAGE (child))
|
||
gtk_assistant_add_page (GTK_ASSISTANT (buildable), GTK_ASSISTANT_PAGE (child), -1);
|
||
else if (type && g_str_equal (type, "titlebar"))
|
||
{
|
||
GtkAssistant *assistant = GTK_ASSISTANT (buildable);
|
||
assistant->headerbar = GTK_WIDGET (child);
|
||
gtk_window_set_titlebar (GTK_WINDOW (buildable), assistant->headerbar);
|
||
}
|
||
else
|
||
parent_buildable_iface->add_child (buildable, builder, child, type);
|
||
}
|
||
|
||
gboolean
|
||
gtk_assistant_buildable_custom_tag_start (GtkBuildable *buildable,
|
||
GtkBuilder *builder,
|
||
GObject *child,
|
||
const char *tagname,
|
||
GtkBuildableParser *parser,
|
||
gpointer *data)
|
||
{
|
||
return parent_buildable_iface->custom_tag_start (buildable, builder, child,
|
||
tagname, parser, data);
|
||
}
|
||
|
||
static void
|
||
gtk_assistant_buildable_custom_finished (GtkBuildable *buildable,
|
||
GtkBuilder *builder,
|
||
GObject *child,
|
||
const char *tagname,
|
||
gpointer user_data)
|
||
{
|
||
parent_buildable_iface->custom_finished (buildable, builder, child,
|
||
tagname, user_data);
|
||
}
|
||
|
||
/**
|
||
* gtk_assistant_get_page:
|
||
* @assistant: a `GtkAssistant`
|
||
* @child: a child of @assistant
|
||
*
|
||
* Returns the `GtkAssistantPage` object for @child.
|
||
*
|
||
* Returns: (transfer none): the `GtkAssistantPage` for @child
|
||
*/
|
||
GtkAssistantPage *
|
||
gtk_assistant_get_page (GtkAssistant *assistant,
|
||
GtkWidget *child)
|
||
{
|
||
GList *page_info = find_page (assistant, child);
|
||
return (GtkAssistantPage *) (page_info ? page_info->data : NULL);
|
||
}
|
||
|
||
/**
|
||
* gtk_assistant_page_get_child:
|
||
* @page: a `GtkAssistantPage`
|
||
*
|
||
* Returns the child to which @page belongs.
|
||
*
|
||
* Returns: (transfer none): the child to which @page belongs
|
||
*/
|
||
GtkWidget *
|
||
gtk_assistant_page_get_child (GtkAssistantPage *page)
|
||
{
|
||
return page->page;
|
||
}
|
||
|
||
static GType
|
||
gtk_assistant_pages_get_item_type (GListModel *model)
|
||
{
|
||
return GTK_TYPE_ASSISTANT_PAGE;
|
||
}
|
||
|
||
static guint
|
||
gtk_assistant_pages_get_n_items (GListModel *model)
|
||
{
|
||
GtkAssistantPages *pages = GTK_ASSISTANT_PAGES (model);
|
||
|
||
return g_list_length (pages->assistant->pages);
|
||
}
|
||
|
||
static gpointer
|
||
gtk_assistant_pages_get_item (GListModel *model,
|
||
guint position)
|
||
{
|
||
GtkAssistantPages *pages = GTK_ASSISTANT_PAGES (model);
|
||
GtkAssistantPage *page;
|
||
|
||
page = g_list_nth_data (pages->assistant->pages, position);
|
||
|
||
return g_object_ref (page);
|
||
}
|
||
|
||
static void
|
||
gtk_assistant_pages_list_model_init (GListModelInterface *iface)
|
||
{
|
||
iface->get_item_type = gtk_assistant_pages_get_item_type;
|
||
iface->get_n_items = gtk_assistant_pages_get_n_items;
|
||
iface->get_item = gtk_assistant_pages_get_item;
|
||
}
|
||
|
||
G_DEFINE_TYPE_WITH_CODE (GtkAssistantPages, gtk_assistant_pages, G_TYPE_OBJECT,
|
||
G_IMPLEMENT_INTERFACE (G_TYPE_LIST_MODEL, gtk_assistant_pages_list_model_init))
|
||
|
||
static void
|
||
gtk_assistant_pages_get_property (GObject *object,
|
||
guint prop_id,
|
||
GValue *value,
|
||
GParamSpec *pspec)
|
||
{
|
||
GtkAssistantPages *self = GTK_ASSISTANT_PAGES (object);
|
||
|
||
switch (prop_id)
|
||
{
|
||
case PAGES_PROP_ITEM_TYPE:
|
||
g_value_set_gtype (value, GTK_TYPE_ASSISTANT_PAGE);
|
||
break;
|
||
|
||
case PAGES_PROP_N_ITEMS:
|
||
g_value_set_uint (value, gtk_assistant_pages_get_n_items (G_LIST_MODEL (self)));
|
||
break;
|
||
|
||
default:
|
||
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
||
break;
|
||
}
|
||
}
|
||
|
||
static void
|
||
gtk_assistant_pages_init (GtkAssistantPages *pages)
|
||
{
|
||
}
|
||
|
||
static void
|
||
gtk_assistant_pages_class_init (GtkAssistantPagesClass *klass)
|
||
{
|
||
GObjectClass *object_class = G_OBJECT_CLASS (klass);
|
||
|
||
object_class->get_property = gtk_assistant_pages_get_property;
|
||
|
||
pages_properties[PAGES_PROP_ITEM_TYPE] =
|
||
g_param_spec_gtype ("item-type", NULL, NULL,
|
||
GTK_TYPE_ASSISTANT_PAGE,
|
||
G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
|
||
|
||
pages_properties[PAGES_PROP_N_ITEMS] =
|
||
g_param_spec_uint ("n-items", NULL, NULL,
|
||
0, G_MAXUINT, 0,
|
||
G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
|
||
|
||
g_object_class_install_properties (object_class, PAGES_N_PROPS, pages_properties);
|
||
}
|
||
|
||
static GtkAssistantPages *
|
||
gtk_assistant_pages_new (GtkAssistant *assistant)
|
||
{
|
||
GtkAssistantPages *pages;
|
||
|
||
pages = g_object_new (GTK_TYPE_ASSISTANT_PAGES, NULL);
|
||
pages->assistant = assistant;
|
||
|
||
return pages;
|
||
}
|
||
|
||
/**
|
||
* gtk_assistant_get_pages:
|
||
* @assistant: a `GtkAssistant`
|
||
*
|
||
* Gets a list model of the assistant pages.
|
||
*
|
||
* Returns: (transfer full) (attributes element-type=GtkAssistantPage): A list model of the pages.
|
||
*/
|
||
GListModel *
|
||
gtk_assistant_get_pages (GtkAssistant *assistant)
|
||
{
|
||
g_return_val_if_fail (GTK_IS_ASSISTANT (assistant), NULL);
|
||
|
||
if (assistant->model)
|
||
return g_object_ref (assistant->model);
|
||
|
||
assistant->model = G_LIST_MODEL (gtk_assistant_pages_new (assistant));
|
||
|
||
g_object_add_weak_pointer (G_OBJECT (assistant->model), (gpointer *)&assistant->model);
|
||
|
||
return assistant->model;
|
||
}
|