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Add default URL and Email hooks to GtkAboutDialog

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Adds default URL and Email hooks which use gtk_show_uri(). It is still
possible to provide one's own hooks, and one can disable the default
hooks by setting NULL hooks. Bug #577793.
This commit is contained in:
Christian Persch 2009-04-03 02:10:55 +02:00
parent 45d076fcc2
commit 4059557491
2 changed files with 121 additions and 17 deletions
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12
docs/reference/gtk/tmpl/gtkaboutdialog.sgml
View File

@ -24,16 +24,20 @@ recognized by looking for <literal>http://url</literal>, with
<literal>url</literal> extending to the next space, tab or line break.
</para>
<para id="gtk-about-dialog-hook-setup">
When setting the website and email hooks for the #GtkAboutDialog widget,
you should remember that the order is important: you should set the hook
functions before setting the website and email URL properties, like this:
Since 2.18 #GtkAboutDialog provides default website and email hooks that use
gtk_show_uri().
</para>
<para>
If you want provide your own hooks overriding the default ones, it is important
to do so before setting the website and email URL properties, like this:
</para>
<informalexample><programlisting>
gtk_about_dialog_set_url_hook (GTK_ABOUT_DIALOG (dialog), launch_url, NULL, NULL);
gtk_about_dialog_set_website (GTK_ABOUT_DIALOG (dialog), app_url);
</programlisting></informalexample>
<para>
Otherwise the GtkAboutDialog widget will not display the website and the
To disable the default hooks, you can pass %NULL as the hook func. Then,
the #GtkAboutDialog widget will not display the website or the
email addresses as clickable.
</para>
<para>

120
gtk/gtkaboutdialog.c
View File

@ -49,6 +49,9 @@
#include "gtktextview.h"
#include "gtkvbox.h"
#include "gtkiconfactory.h"
#include "gtkshow.h"
#include "gtkmain.h"
#include "gtkmessagedialog.h"
#include "gtkprivate.h"
#include "gtkintl.h"
@ -142,16 +145,68 @@ static void display_credits_dialog (GtkWidget
static void display_license_dialog (GtkWidget *button,
gpointer data);
static void close_cb (GtkAboutDialog *about);
static void default_url_hook (GtkAboutDialog *about,
const gchar *uri,
gpointer user_data);
static void default_email_hook (GtkAboutDialog *about,
const gchar *email_address,
gpointer user_data);
static gboolean activate_email_hook_set = FALSE;
static GtkAboutDialogActivateLinkFunc activate_email_hook = NULL;
static gpointer activate_email_hook_data = NULL;
static GDestroyNotify activate_email_hook_destroy = NULL;
static gboolean activate_url_hook_set = FALSE;
static GtkAboutDialogActivateLinkFunc activate_url_hook = NULL;
static gpointer activate_url_hook_data = NULL;
static GDestroyNotify activate_url_hook_destroy = NULL;
static void
default_url_hook (GtkAboutDialog *about,
const gchar *uri,
gpointer user_data G_GNUC_UNUSED)
{
GdkScreen *screen;
GError *error = NULL;
screen = gtk_widget_get_screen (GTK_WIDGET (about));
if (!gtk_show_uri (screen, uri, gtk_get_current_event_time (), &error)) {
GtkWidget *dialog;
dialog = gtk_message_dialog_new (GTK_WINDOW (about),
GTK_DIALOG_DESTROY_WITH_PARENT |
GTK_DIALOG_MODAL,
GTK_MESSAGE_ERROR,
GTK_BUTTONS_CLOSE,
"%s", _("Could not show link"));
gtk_message_dialog_format_secondary_text (GTK_MESSAGE_DIALOG (dialog),
"%s", error->message);
g_error_free (error);
g_signal_connect (dialog, "response",
G_CALLBACK (gtk_widget_destroy), NULL);
gtk_window_present (GTK_WINDOW (dialog));
}
}
static void
default_email_hook (GtkAboutDialog *about,
const gchar *email_address,
gpointer user_data)
{
char *escaped, *uri;
escaped = g_uri_escape_string (email_address, NULL, FALSE);
uri = g_strdup_printf ("mailto:%s", escaped);
g_free (escaped);
default_url_hook (about, uri, user_data);
g_free (uri);
}
G_DEFINE_TYPE (GtkAboutDialog, gtk_about_dialog, GTK_TYPE_DIALOG)
static void
@ -688,7 +743,7 @@ update_website (GtkAboutDialog *about)
{
GtkAboutDialogPrivate *priv = (GtkAboutDialogPrivate *)about->private_data;
if (priv->website_url && activate_url_hook)
if (priv->website_url && (!activate_url_hook_set || activate_url_hook != NULL))
{
gtk_widget_show (priv->website_button);
gtk_widget_hide (priv->website_label);
@ -1647,9 +1702,22 @@ activate_url (GtkWidget *widget,
{
GtkAboutDialog *about = GTK_ABOUT_DIALOG (data);
const gchar *url = gtk_link_button_get_uri (GTK_LINK_BUTTON (widget));
GtkAboutDialogActivateLinkFunc url_hook;
gpointer url_hook_data;
if (activate_url_hook != NULL)
(* activate_url_hook) (about, url, activate_url_hook_data);
if (activate_url_hook_set)
{
url_hook = activate_url_hook;
url_hook_data = activate_url_hook_data;
}
else
{
url_hook = default_url_hook;
url_hook_data = NULL;
}
if (url_hook)
url_hook (about, url, url_hook_data);
}
static void
@ -1660,24 +1728,48 @@ follow_if_link (GtkAboutDialog *about,
GSList *tags = NULL, *tagp = NULL;
GtkAboutDialogPrivate *priv = (GtkAboutDialogPrivate *)about->private_data;
gchar *url = NULL;
GtkAboutDialogActivateLinkFunc email_hook, url_hook;
gpointer email_hook_data, url_hook_data;
if (activate_email_hook_set)
{
email_hook = activate_email_hook;
email_hook_data = activate_email_hook_data;
}
else
{
email_hook = default_email_hook;
email_hook_data = NULL;
}
if (activate_url_hook_set)
{
url_hook = activate_url_hook;
url_hook_data = activate_url_hook_data;
}
else
{
url_hook = default_url_hook;
url_hook_data = NULL;
}
tags = gtk_text_iter_get_tags (iter);
for (tagp = tags; tagp != NULL && !url; tagp = tagp->next)
{
GtkTextTag *tag = tagp->data;
if (activate_email_hook != NULL)
if (email_hook != NULL)
{
url = g_object_get_data (G_OBJECT (tag), "email");
if (url)
(* activate_email_hook) (about, url, activate_email_hook_data);
email_hook (about, url, email_hook_data);
}
if (!url && activate_url_hook != NULL)
if (!url && url_hook != NULL)
{
url = g_object_get_data (G_OBJECT (tag), "url");
if (url)
(* activate_url_hook) (about, url, activate_url_hook_data);
url_hook (about, url, url_hook_data);
}
if (url && !g_slist_find_custom (priv->visited_links, url, (GCompareFunc)strcmp))
@ -1866,8 +1958,8 @@ text_view_new (GtkAboutDialog *about,
GdkColor visited_link_color;
GtkAboutDialogPrivate *priv = (GtkAboutDialogPrivate *)about->private_data;
linkify_email = (activate_email_hook != NULL);
linkify_urls = (activate_url_hook != NULL);
linkify_email = (!activate_email_hook_set || activate_email_hook != NULL);
linkify_urls = (!activate_url_hook_set || activate_url_hook != NULL);
gtk_widget_ensure_style (GTK_WIDGET (about));
gtk_widget_style_get (GTK_WIDGET (about),
@ -2177,6 +2269,9 @@ gtk_about_dialog_new (void)
* Installs a global function to be called whenever the user activates an
* email link in an about dialog.
*
* Since 2.18 there exists a default function which uses gtk_show_uri(). To
* deactivate it, you can pass %NULL for @func.
*
* Return value: the previous email hook.
*
* Since: 2.6
@ -2193,6 +2288,7 @@ gtk_about_dialog_set_email_hook (GtkAboutDialogActivateLinkFunc func,
old = activate_email_hook;
activate_email_hook_set = TRUE;
activate_email_hook = func;
activate_email_hook_data = data;
activate_email_hook_destroy = destroy;
@ -2209,6 +2305,9 @@ gtk_about_dialog_set_email_hook (GtkAboutDialogActivateLinkFunc func,
* Installs a global function to be called whenever the user activates a
* URL link in an about dialog.
*
* Since 2.18 here exists a default function which uses gtk_show_uri(). To
* deactivate it, you can pass %NULL for @func.
*
* Return value: the previous URL hook.
*
* Since: 2.6
@ -2225,6 +2324,7 @@ gtk_about_dialog_set_url_hook (GtkAboutDialogActivateLinkFunc func,
old = activate_url_hook;
activate_url_hook_set = TRUE;
activate_url_hook = func;
activate_url_hook_data = data;
activate_url_hook_destroy = destroy;