/*
* e-mail-signature-tree-view.c
*
* 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/>
*
*/
#include "e-mail-signature-tree-view.h"
#define E_MAIL_SIGNATURE_TREE_VIEW_GET_PRIVATE(obj) \
(G_TYPE_INSTANCE_GET_PRIVATE \
((obj), E_TYPE_MAIL_SIGNATURE_TREE_VIEW, EMailSignatureTreeViewPrivate))
#define SOURCE_IS_MAIL_SIGNATURE(source) \
(e_source_has_extension ((source), E_SOURCE_EXTENSION_MAIL_SIGNATURE))
struct _EMailSignatureTreeViewPrivate {
ESourceRegistry *registry;
guint refresh_idle_id;
};
enum {
PROP_0,
PROP_REGISTRY
};
enum {
COLUMN_DISPLAY_NAME,
COLUMN_UID,
NUM_COLUMNS
};
G_DEFINE_TYPE (
EMailSignatureTreeView,
e_mail_signature_tree_view,
GTK_TYPE_TREE_VIEW)
static gboolean
mail_signature_tree_view_refresh_idle_cb (EMailSignatureTreeView *tree_view)
{
/* The refresh function will clear the idle ID. */
e_mail_signature_tree_view_refresh (tree_view);
return FALSE;
}
static void
mail_signature_tree_view_registry_changed (ESourceRegistry *registry,
ESource *source,
EMailSignatureTreeView *tree_view)
{
/* If the ESource in question has a "Mail Signature" extension,
* schedule a refresh of the tree model. Otherwise ignore it.
* We use an idle callback to limit how frequently we refresh
* the tree model, in case the registry is emitting lots of
* signals at once. */
if (!SOURCE_IS_MAIL_SIGNATURE (source))
return;
if (tree_view->priv->refresh_idle_id > 0)
return;
tree_view->priv->refresh_idle_id = g_idle_add (
(GSourceFunc) mail_signature_tree_view_refresh_idle_cb,
tree_view);
}
static void
mail_signature_tree_view_set_registry (EMailSignatureTreeView *tree_view,
ESourceRegistry *registry)
{
g_return_if_fail (E_IS_SOURCE_REGISTRY (registry));
g_return_if_fail (tree_view->priv->registry == NULL);
tree_view->priv->registry = g_object_ref (registry);
g_signal_connect (
registry, "source-added",
G_CALLBACK (mail_signature_tree_view_registry_changed),
tree_view);
g_signal_connect (
registry, "source-changed",
G_CALLBACK (mail_signature_tree_view_registry_changed),
tree_view);
g_signal_connect (
registry, "source-removed",
G_CALLBACK (mail_signature_tree_view_registry_changed),
tree_view);
}
static void
mail_signature_tree_view_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
switch (property_id) {
case PROP_REGISTRY:
mail_signature_tree_view_set_registry (
E_MAIL_SIGNATURE_TREE_VIEW (object),
g_value_get_object (value));
return;
}
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}
static void
mail_signature_tree_view_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
switch (property_id) {
case PROP_REGISTRY:
g_value_set_object (
value,
e_mail_signature_tree_view_get_registry (
E_MAIL_SIGNATURE_TREE_VIEW (object)));
return;
}
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}
static void
mail_signature_tree_view_dispose (GObject *object)
{
EMailSignatureTreeViewPrivate *priv;
priv = E_MAIL_SIGNATURE_TREE_VIEW_GET_PRIVATE (object);
if (priv->registry != NULL) {
g_signal_handlers_disconnect_matched (
priv->registry, G_SIGNAL_MATCH_DATA,
0, 0, NULL, NULL, object);
g_object_unref (priv->registry);
priv->registry = NULL;
}
if (priv->refresh_idle_id > 0) {
g_source_remove (priv->refresh_idle_id);
priv->refresh_idle_id = 0;
}
/* Chain up to parent's dispose() method. */
G_OBJECT_CLASS (e_mail_signature_tree_view_parent_class)->
dispose (object);
}
static void
mail_signature_tree_view_constructed (GObject *object)
{
GtkTreeView *tree_view;
GtkTreeViewColumn *column;
GtkCellRenderer *cell_renderer;
GtkListStore *list_store;
/* Chain up to parent's constructed() method. */
G_OBJECT_CLASS (e_mail_signature_tree_view_parent_class)->
constructed (object);
list_store = gtk_list_store_new (
NUM_COLUMNS,
G_TYPE_STRING, /* COLUMN_DISPLAY_NAME */
G_TYPE_STRING); /* COLUMN_UID */
tree_view = GTK_TREE_VIEW (object);
gtk_tree_view_set_headers_visible (tree_view, FALSE);
gtk_tree_view_set_model (tree_view, GTK_TREE_MODEL (list_store));
g_object_unref (list_store);
/* Column: Signature Name */
column = gtk_tree_view_column_new ();
gtk_tree_view_column_set_expand (column, TRUE);
cell_renderer = gtk_cell_renderer_text_new ();
g_object_set (cell_renderer, "ellipsize", PANGO_ELLIPSIZE_END, NULL);
gtk_tree_view_column_pack_start (column, cell_renderer, TRUE);
gtk_tree_view_column_add_attribute (
column, cell_renderer, "text", COLUMN_DISPLAY_NAME);
gtk_tree_view_append_column (tree_view, column);
e_mail_signature_tree_view_refresh (
E_MAIL_SIGNATURE_TREE_VIEW (object));
}
static void
e_mail_signature_tree_view_class_init (EMailSignatureTreeViewClass *class)
{
GObjectClass *object_class;
g_type_class_add_private (
class, sizeof (EMailSignatureTreeViewPrivate));
object_class = G_OBJECT_CLASS (class);
object_class->set_property = mail_signature_tree_view_set_property;
object_class->get_property = mail_signature_tree_view_get_property;
object_class->dispose = mail_signature_tree_view_dispose;
object_class->constructed = mail_signature_tree_view_constructed;
g_object_class_install_property (
object_class,
PROP_REGISTRY,
g_param_spec_object (
"registry",
"Registry",
NULL,
E_TYPE_SOURCE_REGISTRY,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY |
G_PARAM_STATIC_STRINGS));
}
static void
e_mail_signature_tree_view_init (EMailSignatureTreeView *tree_view)
{
tree_view->priv = E_MAIL_SIGNATURE_TREE_VIEW_GET_PRIVATE (tree_view);
}
GtkWidget *
e_mail_signature_tree_view_new (ESourceRegistry *registry)
{
g_return_val_if_fail (E_IS_SOURCE_REGISTRY (registry), NULL);
return g_object_new (
E_TYPE_MAIL_SIGNATURE_TREE_VIEW,
"registry", registry, NULL);
}
void
e_mail_signature_tree_view_refresh (EMailSignatureTreeView *tree_view)
{
ESourceRegistry *registry;
GtkTreeModel *tree_model;
GtkTreeSelection *selection;
ESource *source;
GList *list, *link;
const gchar *extension_name;
gchar *saved_uid = NULL;
g_return_if_fail (E_IS_MAIL_SIGNATURE_TREE_VIEW (tree_view));
if (tree_view->priv->refresh_idle_id > 0) {
g_source_remove (tree_view->priv->refresh_idle_id);
tree_view->priv->refresh_idle_id = 0;
}
registry = e_mail_signature_tree_view_get_registry (tree_view);
tree_model = gtk_tree_view_get_model (GTK_TREE_VIEW (tree_view));
selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (tree_view));
source = e_mail_signature_tree_view_ref_selected_source (tree_view);
if (source != NULL) {
saved_uid = e_source_dup_uid (source);
g_object_unref (source);
}
gtk_list_store_clear (GTK_LIST_STORE (tree_model));
extension_name = E_SOURCE_EXTENSION_MAIL_SIGNATURE;
list = e_source_registry_list_sources (registry, extension_name);
for (link = list; link != NULL; link = g_list_next (link)) {
GtkTreeIter iter;
const gchar *display_name;
const gchar *uid;
source = E_SOURCE (link->data);
display_name = e_source_get_display_name (source);
uid = e_source_get_uid (source);
gtk_list_store_append (GTK_LIST_STORE (tree_model), &iter);
gtk_list_store_set (
GTK_LIST_STORE (tree_model), &iter,
COLUMN_DISPLAY_NAME, display_name,
COLUMN_UID, uid, -1);
}
g_list_free_full (list, (GDestroyNotify) g_object_unref);
/* Try and restore the previous selected source. */
source = NULL;
if (saved_uid != NULL) {
source = e_source_registry_ref_source (registry, saved_uid);
g_free (saved_uid);
}
if (source != NULL) {
e_mail_signature_tree_view_set_selected_source (
tree_view, source);
g_object_unref (source);
}
/* Hint to refresh a signature preview. */
g_signal_emit_by_name (selection, "changed");
}
ESourceRegistry *
e_mail_signature_tree_view_get_registry (EMailSignatureTreeView *tree_view)
{
g_return_val_if_fail (E_IS_MAIL_SIGNATURE_TREE_VIEW (tree_view), NULL);
return tree_view->priv->registry;
}
ESource *
e_mail_signature_tree_view_ref_selected_source (EMailSignatureTreeView *tree_view)
{
ESourceRegistry *registry;
GtkTreeSelection *selection;
GtkTreeModel *tree_model;
GtkTreeIter iter;
ESource *source;
gchar *uid;
g_return_val_if_fail (E_IS_MAIL_SIGNATURE_TREE_VIEW (tree_view), NULL);
registry = e_mail_signature_tree_view_get_registry (tree_view);
selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (tree_view));
if (!gtk_tree_selection_get_selected (selection, &tree_model, &iter))
return NULL;
gtk_tree_model_get (tree_model, &iter, COLUMN_UID, &uid, -1);
source = e_source_registry_ref_source (registry, uid);
g_free (uid);
return source;
}
void
e_mail_signature_tree_view_set_selected_source (EMailSignatureTreeView *tree_view,
ESource *source)
{
ESourceRegistry *registry;
GtkTreeSelection *selection;
GtkTreeModel *tree_model;
GtkTreeIter iter;
gboolean valid;
g_return_if_fail (E_IS_MAIL_SIGNATURE_TREE_VIEW (tree_view));
g_return_if_fail (E_IS_SOURCE (source));
/* It is a programming error to pass an ESource that has no
* "Mail Signature" extension. */
g_return_if_fail (SOURCE_IS_MAIL_SIGNATURE (source));
registry = e_mail_signature_tree_view_get_registry (tree_view);
tree_model = gtk_tree_view_get_model (GTK_TREE_VIEW (tree_view));
selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (tree_view));
valid = gtk_tree_model_get_iter_first (tree_model, &iter);
while (valid) {
ESource *candidate;
gchar *uid;
gtk_tree_model_get (tree_model, &iter, COLUMN_UID, &uid, -1);
candidate = e_source_registry_ref_source (registry, uid);
g_free (uid);
if (candidate != NULL && e_source_equal (source, candidate)) {
gtk_tree_selection_select_iter (selection, &iter);
g_object_unref (candidate);
break;
}
if (candidate != NULL)
g_object_unref (candidate);
valid = gtk_tree_model_iter_next (tree_model, &iter);
}
}
