diff options
Diffstat (limited to 'e-util/e-online-button.c')
| -rw-r--r-- | e-util/e-online-button.c | 210 |
1 files changed, 210 insertions, 0 deletions
diff --git a/e-util/e-online-button.c b/e-util/e-online-button.c new file mode 100644 index 0000000000..a3921a779f --- /dev/null +++ b/e-util/e-online-button.c @@ -0,0 +1,210 @@ +/* + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) version 3. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with the program; if not, see <http://www.gnu.org/licenses/> + * + * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com) + */ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include "e-online-button.h" + +#include <glib/gi18n.h> + +#define E_ONLINE_BUTTON_GET_PRIVATE(obj) \ + (G_TYPE_INSTANCE_GET_PRIVATE \ + ((obj), E_TYPE_ONLINE_BUTTON, EOnlineButtonPrivate)) + +#define ONLINE_TOOLTIP \ + _("Evolution is currently online. Click this button to work offline.") + +#define OFFLINE_TOOLTIP \ + _("Evolution is currently offline. Click this button to work online.") + +#define NETWORK_UNAVAILABLE_TOOLTIP \ + _("Evolution is currently offline because the network is unavailable.") + +struct _EOnlineButtonPrivate { + GtkWidget *image; + gboolean online; +}; + +enum { + PROP_0, + PROP_ONLINE +}; + +G_DEFINE_TYPE ( + EOnlineButton, + e_online_button, + GTK_TYPE_BUTTON) + +static void +online_button_update_tooltip (EOnlineButton *button) +{ + const gchar *tooltip; + + if (e_online_button_get_online (button)) + tooltip = ONLINE_TOOLTIP; + else if (gtk_widget_get_sensitive (GTK_WIDGET (button))) + tooltip = OFFLINE_TOOLTIP; + else + tooltip = NETWORK_UNAVAILABLE_TOOLTIP; + + gtk_widget_set_tooltip_text (GTK_WIDGET (button), tooltip); +} + +static void +online_button_set_property (GObject *object, + guint property_id, + const GValue *value, + GParamSpec *pspec) +{ + switch (property_id) { + case PROP_ONLINE: + e_online_button_set_online ( + E_ONLINE_BUTTON (object), + g_value_get_boolean (value)); + return; + } + + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); +} + +static void +online_button_get_property (GObject *object, + guint property_id, + GValue *value, + GParamSpec *pspec) +{ + switch (property_id) { + case PROP_ONLINE: + g_value_set_boolean ( + value, e_online_button_get_online ( + E_ONLINE_BUTTON (object))); + return; + } + + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); +} + +static void +online_button_dispose (GObject *object) +{ + EOnlineButtonPrivate *priv; + + priv = E_ONLINE_BUTTON_GET_PRIVATE (object); + + if (priv->image != NULL) { + g_object_unref (priv->image); + priv->image = NULL; + } + + /* Chain up to parent's dispose() method. */ + G_OBJECT_CLASS (e_online_button_parent_class)->dispose (object); +} + +static void +e_online_button_class_init (EOnlineButtonClass *class) +{ + GObjectClass *object_class; + + g_type_class_add_private (class, sizeof (EOnlineButtonPrivate)); + + object_class = G_OBJECT_CLASS (class); + object_class->set_property = online_button_set_property; + object_class->get_property = online_button_get_property; + object_class->dispose = online_button_dispose; + + g_object_class_install_property ( + object_class, + PROP_ONLINE, + g_param_spec_boolean ( + "online", + "Online", + "The button state is online", + TRUE, + G_PARAM_READWRITE | + G_PARAM_CONSTRUCT)); +} + +static void +e_online_button_init (EOnlineButton *button) +{ + GtkWidget *widget; + + button->priv = E_ONLINE_BUTTON_GET_PRIVATE (button); + + gtk_widget_set_can_focus (GTK_WIDGET (button), FALSE); + gtk_button_set_relief (GTK_BUTTON (button), GTK_RELIEF_NONE); + + widget = gtk_image_new (); + gtk_container_add (GTK_CONTAINER (button), widget); + button->priv->image = g_object_ref (widget); + gtk_widget_show (widget); + + g_signal_connect ( + button, "notify::online", + G_CALLBACK (online_button_update_tooltip), NULL); + + g_signal_connect ( + button, "notify::sensitive", + G_CALLBACK (online_button_update_tooltip), NULL); +} + +GtkWidget * +e_online_button_new (void) +{ + return g_object_new (E_TYPE_ONLINE_BUTTON, NULL); +} + +gboolean +e_online_button_get_online (EOnlineButton *button) +{ + g_return_val_if_fail (E_IS_ONLINE_BUTTON (button), FALSE); + + return button->priv->online; +} + +void +e_online_button_set_online (EOnlineButton *button, + gboolean online) +{ + GtkImage *image; + GtkIconInfo *icon_info; + GtkIconTheme *icon_theme; + const gchar *filename; + const gchar *icon_name; + + g_return_if_fail (E_IS_ONLINE_BUTTON (button)); + + if (button->priv->online == online) + return; + + button->priv->online = online; + + image = GTK_IMAGE (button->priv->image); + icon_name = online ? "online" : "offline"; + icon_theme = gtk_icon_theme_get_default (); + + /* Prevent GTK+ from scaling these rectangular icons. */ + icon_info = gtk_icon_theme_lookup_icon ( + icon_theme, icon_name, GTK_ICON_SIZE_BUTTON, 0); + filename = gtk_icon_info_get_filename (icon_info); + gtk_image_set_from_file (image, filename); + gtk_icon_info_free (icon_info); + + g_object_notify (G_OBJECT (button), "online"); +} |