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GtkAssistant: Add custom page type

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The custom page type will not show any buttons by default, and
it is left to the application to add its own buttons instead.

The _next_page() and _previous_page() functions can be used
for the back and forward buttons used by the application.

https://bugzilla.gnome.org/show_bug.cgi?id=576498
This commit is contained in:
Bastien Nocera 2010-10-30 20:12:58 +01:00
parent b5abd10940
commit cbbfd7beb6
3 changed files with 88 additions and 24 deletions
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2
gtk/gtk.symbols
View File

@ -262,6 +262,8 @@ gtk_application_remove_window
#if IN_FILE(__GTK_ASSISTANT_C__)
gtk_assistant_get_type G_GNUC_CONST
gtk_assistant_new
gtk_assistant_next_page
gtk_assistant_previous_page
gtk_assistant_get_current_page
gtk_assistant_set_current_page
gtk_assistant_get_n_pages

102
gtk/gtkassistant.c
View File

@ -590,13 +590,22 @@ set_assistant_buttons_state (GtkAssistant *assistant)
gtk_widget_hide (priv->last);
compute_progress_state (assistant);
break;
case GTK_ASSISTANT_PAGE_CUSTOM:
gtk_widget_hide (priv->cancel);
gtk_widget_hide (priv->back);
gtk_widget_hide (priv->forward);
gtk_widget_hide (priv->apply);
gtk_widget_hide (priv->last);
gtk_widget_hide (priv->close);
break;
default:
g_assert_not_reached ();
}
if (priv->committed)
gtk_widget_hide (priv->cancel);
else if (priv->current_page->type == GTK_ASSISTANT_PAGE_SUMMARY)
else if (priv->current_page->type == GTK_ASSISTANT_PAGE_SUMMARY ||
priv->current_page->type == GTK_ASSISTANT_PAGE_CUSTOM)
gtk_widget_hide (priv->cancel);
else
gtk_widget_show (priv->cancel);
@ -720,34 +729,14 @@ static void
on_assistant_forward (GtkWidget *widget,
GtkAssistant *assistant)
{
if (!compute_next_step (assistant))
g_critical ("Page flow is broken, you may want to end it with a page of "
"type GTK_ASSISTANT_PAGE_CONFIRM or GTK_ASSISTANT_PAGE_SUMMARY");
gtk_assistant_next_page (assistant);
}
static void
on_assistant_back (GtkWidget *widget,
GtkAssistant *assistant)
{
GtkAssistantPrivate *priv = assistant->priv;
GtkAssistantPage *page_info;
GSList *page_node;
/* skip the progress pages when going back */
do
{
page_node = priv->visited_pages;
g_return_if_fail (page_node != NULL);
priv->visited_pages = priv->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, page_info);
gtk_assistant_previous_page (assistant);
}
static void
@ -1684,6 +1673,73 @@ gtk_assistant_set_current_page (GtkAssistant *assistant,
set_current_page (assistant, page);
}
/**
* gtk_assistant_next_page:
* @assistant: a #GtkAssistant
*
* Navigate to the next page. It is a programming
* error to call this function if there is no next page.
*
* This function is for use when creating pages of the
* #GTK_ASSISTANT_PAGE_CUSTOM type.
*
* Since: 3.0
**/
void
gtk_assistant_next_page (GtkAssistant *assistant)
{
GtkAssistantPrivate *priv;
g_return_if_fail (GTK_IS_ASSISTANT (assistant));
priv = assistant->priv;
if (!compute_next_step (assistant))
g_critical ("Page flow is broken, you may want to end it with a page of "
"type 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 if no previous page is
* available.
*
* This function is for use when creating pages of the
* #GTK_ASSISTANT_PAGE_CUSTOM type.
*
* Since: 3.0
**/
void
gtk_assistant_previous_page (GtkAssistant *assistant)
{
GtkAssistantPrivate *priv;
GtkAssistantPage *page_info;
GSList *page_node;
g_return_if_fail (GTK_IS_ASSISTANT (assistant));
priv = assistant->priv;
/* skip the progress pages when going back */
do
{
page_node = priv->visited_pages;
g_return_if_fail (page_node != NULL);
priv->visited_pages = priv->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, page_info);
}
/**
* gtk_assistant_get_n_pages:
* @assistant: a #GtkAssistant

8
gtk/gtkassistant.h
View File

@ -55,6 +55,9 @@ G_BEGIN_DECLS
* @GTK_ASSISTANT_PAGE_PROGRESS: Used for tasks that take a long time to
* complete, blocks the assistant until the page is marked as complete.
* Only the back button will be shown.
* @GTK_ASSISTANT_PAGE_CUSTOM: Used for when other page types are not
* appropriate. No buttons will be shown, and the application must
* add its own buttons through gtk_assistant_add_action_widget().
*
* An enum for determining the page role inside the #GtkAssistant. It's
* used to handle buttons sensitivity and visibility.
@ -72,7 +75,8 @@ typedef enum
GTK_ASSISTANT_PAGE_INTRO,
GTK_ASSISTANT_PAGE_CONFIRM,
GTK_ASSISTANT_PAGE_SUMMARY,
GTK_ASSISTANT_PAGE_PROGRESS
GTK_ASSISTANT_PAGE_PROGRESS,
GTK_ASSISTANT_PAGE_CUSTOM
} GtkAssistantPageType;
typedef struct _GtkAssistant GtkAssistant;
@ -120,6 +124,8 @@ typedef gint (*GtkAssistantPageFunc) (gint current_page, gpointer data);
GType gtk_assistant_get_type (void) G_GNUC_CONST;
GtkWidget *gtk_assistant_new (void);
void gtk_assistant_next_page (GtkAssistant *assistant);
void gtk_assistant_previous_page (GtkAssistant *assistant);
gint gtk_assistant_get_current_page (GtkAssistant *assistant);
void gtk_assistant_set_current_page (GtkAssistant *assistant,
gint page_num);