/*
* e-proxy-selector.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/>
*
*/
/**
* SECTION: e-proxy-selector
* @include: e-util/e-util.h
* @short_description: Select and manage proxy profiles
*
* #EProxySelector displays a list of available proxy profiles, with inline
* toolbar controls for adding and removing profiles.
**/
#include "e-proxy-selector.h"
#include <config.h>
#include <glib/gi18n-lib.h>
#define E_PROXY_SELECTOR_GET_PRIVATE(obj) \
(G_TYPE_INSTANCE_GET_PRIVATE \
((obj), E_TYPE_PROXY_SELECTOR, EProxySelectorPrivate))
typedef struct _AsyncContext AsyncContext;
struct _EProxySelectorPrivate {
ESourceRegistry *registry;
gulong source_added_handler_id;
gulong source_changed_handler_id;
gulong source_removed_handler_id;
GtkTreeSelection *selection;
gulong selection_changed_handler_id;
guint refresh_idle_id;
};
struct _AsyncContext {
EProxySelector *selector;
ESource *scratch_source;
};
enum {
PROP_0,
PROP_REGISTRY,
PROP_SELECTED
};
enum {
COLUMN_DISPLAY_NAME,
COLUMN_SOURCE
};
G_DEFINE_TYPE (
EProxySelector,
e_proxy_selector,
E_TYPE_TREE_VIEW_FRAME)
static void
async_context_free (AsyncContext *async_context)
{
g_clear_object (&async_context->selector);
g_clear_object (&async_context->scratch_source);
g_slice_free (AsyncContext, async_context);
}
static gchar *
proxy_selector_pick_display_name (EProxySelector *selector)
{
ESourceRegistry *registry;
GList *list, *link;
const gchar *base_name = _("Custom Proxy");
const gchar *extension_name;
gchar *display_name;
guint ii = 0;
extension_name = E_SOURCE_EXTENSION_PROXY;
registry = e_proxy_selector_get_registry (selector);
list = e_source_registry_list_sources (registry, extension_name);
/* Convert the list of ESources to a list of display names. */
for (link = list; link != NULL; link = g_list_next (link)) {
ESource *source = E_SOURCE (link->data);
link->data = e_source_dup_display_name (source);
g_object_unref (source);
}
display_name = g_strdup (base_name);
try_again:
link = g_list_find_custom (
list, display_name, (GCompareFunc) g_utf8_collate);
if (link != NULL) {
g_free (display_name);
display_name = g_strdup_printf ("%s (%u)", base_name, ++ii);
goto try_again;
}
g_list_free_full (list, (GDestroyNotify) g_free);
return display_name;
}
static void
proxy_selector_commit_source_cb (GObject *object,
GAsyncResult *result,
gpointer user_data)
{
AsyncContext *async_context;
GError *local_error = NULL;
async_context = (AsyncContext *) user_data;
e_source_registry_commit_source_finish (
E_SOURCE_REGISTRY (object), result, &local_error);
if (local_error == NULL) {
/* Refresh the tree model immediately. */
e_proxy_selector_refresh (async_context->selector);
/* Select the newly added proxy data source. Note that
* e_proxy_selector_set_selected() uses e_source_equal()
* to match the input ESource to a tree model row, so it
* should match our scratch ESource to the newly-created
* ESource since they both have the same UID. */
e_proxy_selector_set_selected (
async_context->selector,
async_context->scratch_source);
} else {
/* FIXME Hand the error off to an EAlertSink. */
g_warning ("%s: %s", G_STRFUNC, local_error->message);
g_error_free (local_error);
}
gtk_widget_set_sensitive (GTK_WIDGET (async_context->selector), TRUE);
async_context_free (async_context);
}
static void
proxy_selector_remove_source_cb (GObject *object,
GAsyncResult *result,
gpointer user_data)
{
EProxySelector *selector;
GError *local_error = NULL;
selector = E_PROXY_SELECTOR (user_data);
e_source_remove_finish (E_SOURCE (object), result, &local_error);
if (local_error != NULL) {
/* FIXME Hand the error off to an EAlertSink. */
g_warning ("%s: %s", G_STRFUNC, local_error->message);
g_error_free (local_error);
}
gtk_widget_set_sensitive (GTK_WIDGET (selector), TRUE);
g_object_unref (selector);
}
static gboolean
proxy_selector_action_add_cb (EProxySelector *selector,
GtkAction *action)
{
AsyncContext *async_context;
ESourceRegistry *registry;
ESourceProxy *extension;
ESource *scratch_source;
const gchar *extension_name;
gchar *display_name;
const gchar * const ignore_hosts[] = {
"localhost",
"127.0.0.0/8",
"::1",
NULL
};
scratch_source = e_source_new (NULL, NULL, NULL);
display_name = proxy_selector_pick_display_name (selector);
e_source_set_display_name (scratch_source, display_name);
g_free (display_name);
extension_name = E_SOURCE_EXTENSION_PROXY;
extension = e_source_get_extension (scratch_source, extension_name);
e_source_proxy_set_ignore_hosts (extension, ignore_hosts);
registry = e_proxy_selector_get_registry (selector);
/* Disable the selector until the commit operation completes. */
gtk_widget_set_sensitive (GTK_WIDGET (selector), FALSE);
async_context = g_slice_new0 (AsyncContext);
async_context->selector = g_object_ref (selector);
async_context->scratch_source = g_object_ref (scratch_source);
e_source_registry_commit_source (
registry, scratch_source, NULL,
proxy_selector_commit_source_cb,
async_context);
g_object_unref (scratch_source);
return TRUE;
}
static gboolean
proxy_selector_action_remove_cb (EProxySelector *selector,
GtkAction *action)
{
ESource *selected_source;
selected_source = e_proxy_selector_ref_selected (selector);
g_return_val_if_fail (selected_source != NULL, FALSE);
/* Disable the selector until the remove operation completes. */
gtk_widget_set_sensitive (GTK_WIDGET (selector), FALSE);
e_source_remove (
selected_source, NULL,
proxy_selector_remove_source_cb,
g_object_ref (selector));
g_object_unref (selected_source);
return TRUE;
}
static gboolean
proxy_selector_refresh_idle_cb (gpointer user_data)
{
EProxySelector *selector = user_data;
/* The refresh function will clear the idle ID. */
e_proxy_selector_refresh (selector);
return FALSE;
}
static void
proxy_selector_schedule_refresh (EProxySelector *selector)
{
/* 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 (selector->priv->refresh_idle_id == 0) {
selector->priv->refresh_idle_id = g_idle_add (
proxy_selector_refresh_idle_cb, selector);
}
}
static void
proxy_selector_cell_edited_cb (GtkCellRendererText *renderer,
const gchar *path_string,
const gchar *new_name,
EProxySelector *selector)
{
ETreeViewFrame *tree_view_frame;
GtkTreeView *tree_view;
GtkTreeModel *model;
GtkTreePath *path;
GtkTreeIter iter;
ESource *source;
if (new_name == NULL || *new_name == '\0')
return;
tree_view_frame = E_TREE_VIEW_FRAME (selector);
tree_view = e_tree_view_frame_get_tree_view (tree_view_frame);
model = gtk_tree_view_get_model (tree_view);
path = gtk_tree_path_new_from_string (path_string);
gtk_tree_model_get_iter (model, &iter, path);
gtk_tree_model_get (model, &iter, COLUMN_SOURCE, &source, -1);
gtk_tree_path_free (path);
/* EProxyPreferences will detect the change and commit it. */
e_source_set_display_name (source, new_name);
e_proxy_selector_refresh (selector);
g_object_unref (source);
}
static void
proxy_selector_source_added_cb (ESourceRegistry *registry,
ESource *source,
EProxySelector *selector)
{
if (e_source_has_extension (source, E_SOURCE_EXTENSION_PROXY))
proxy_selector_schedule_refresh (selector);
}
static void
proxy_selector_source_changed_cb (ESourceRegistry *registry,
ESource *source,
EProxySelector *selector)
{
if (e_source_has_extension (source, E_SOURCE_EXTENSION_PROXY))
proxy_selector_schedule_refresh (selector);
}
static void
proxy_selector_source_removed_cb (ESourceRegistry *registry,
ESource *source,
EProxySelector *selector)
{
if (e_source_has_extension (source, E_SOURCE_EXTENSION_PROXY))
proxy_selector_schedule_refresh (selector);
}
static void
proxy_selector_selection_changed_cb (GtkTreeSelection *selection,
EProxySelector *selector)
{
g_object_notify (G_OBJECT (selector), "selected");
}
static void
proxy_selector_set_registry (EProxySelector *selector,
ESourceRegistry *registry)
{
gulong handler_id;
g_return_if_fail (E_IS_SOURCE_REGISTRY (registry));
g_return_if_fail (selector->priv->registry == NULL);
selector->priv->registry = g_object_ref (registry);
handler_id = g_signal_connect (
registry, "source-added",
G_CALLBACK (proxy_selector_source_added_cb), selector);
selector->priv->source_added_handler_id = handler_id;
handler_id = g_signal_connect (
registry, "source-changed",
G_CALLBACK (proxy_selector_source_changed_cb), selector);
selector->priv->source_changed_handler_id = handler_id;
handler_id = g_signal_connect (
registry, "source-removed",
G_CALLBACK (proxy_selector_source_removed_cb), selector);
selector->priv->source_removed_handler_id = handler_id;
}
static void
proxy_selector_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
switch (property_id) {
case PROP_REGISTRY:
proxy_selector_set_registry (
E_PROXY_SELECTOR (object),
g_value_get_object (value));
return;
case PROP_SELECTED:
e_proxy_selector_set_selected (
E_PROXY_SELECTOR (object),
g_value_get_object (value));
return;
}
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}
static void
proxy_selector_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
switch (property_id) {
case PROP_REGISTRY:
g_value_set_object (
value,
e_proxy_selector_get_registry (
E_PROXY_SELECTOR (object)));
return;
case PROP_SELECTED:
g_value_take_object (
value,
e_proxy_selector_ref_selected (
E_PROXY_SELECTOR (object)));
return;
}
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}
static void
proxy_selector_dispose (GObject *object)
{
EProxySelectorPrivate *priv;
priv = E_PROXY_SELECTOR_GET_PRIVATE (object);
if (priv->source_added_handler_id > 0) {
g_signal_handler_disconnect (
priv->registry,
priv->source_added_handler_id);
priv->source_added_handler_id = 0;
}
if (priv->source_changed_handler_id > 0) {
g_signal_handler_disconnect (
priv->registry,
priv->source_changed_handler_id);
priv->source_changed_handler_id = 0;
}
if (priv->source_removed_handler_id > 0) {
g_signal_handler_disconnect (
priv->registry,
priv->source_removed_handler_id);
priv->source_removed_handler_id = 0;
}
if (priv->selection_changed_handler_id > 0) {
g_signal_handler_disconnect (
priv->selection,
priv->selection_changed_handler_id);
priv->selection_changed_handler_id = 0;
}
if (priv->refresh_idle_id > 0) {
g_source_remove (priv->refresh_idle_id);
priv->refresh_idle_id = 0;
}
g_clear_object (&priv->registry);
/* Chain up to parent's dispose() method. */
G_OBJECT_CLASS (e_proxy_selector_parent_class)->dispose (object);
}
static void
proxy_selector_constructed (GObject *object)
{
EProxySelector *selector;
ETreeViewFrame *tree_view_frame;
GtkTreeView *tree_view;
GtkTreeViewColumn *column;
GtkCellRenderer *renderer;
GtkTreeSelection *selection;
GtkListStore *list_store;
GtkAction *action;
const gchar *tooltip;
gulong handler_id;
/* Chain up to parent's constructed() method. */
G_OBJECT_CLASS (e_proxy_selector_parent_class)->constructed (object);
selector = E_PROXY_SELECTOR (object);
tree_view_frame = E_TREE_VIEW_FRAME (object);
tree_view = e_tree_view_frame_get_tree_view (tree_view_frame);
gtk_tree_view_set_reorderable (tree_view, FALSE);
gtk_tree_view_set_headers_visible (tree_view, FALSE);
/* Configure the toolbar actions. */
action = e_tree_view_frame_lookup_toolbar_action (
tree_view_frame, E_TREE_VIEW_FRAME_ACTION_ADD);
tooltip = _("Create a new proxy profile");
gtk_action_set_tooltip (action, tooltip);
action = e_tree_view_frame_lookup_toolbar_action (
tree_view_frame, E_TREE_VIEW_FRAME_ACTION_REMOVE);
tooltip = _("Delete the selected proxy profile");
gtk_action_set_tooltip (action, tooltip);
/* Configure the tree view column. */
column = gtk_tree_view_column_new ();
renderer = gtk_cell_renderer_text_new ();
g_object_set (
G_OBJECT (renderer),
"editable", TRUE,
"ellipsize", PANGO_ELLIPSIZE_END, NULL);
g_signal_connect (
renderer, "edited",
G_CALLBACK (proxy_selector_cell_edited_cb), selector);
gtk_tree_view_column_pack_start (column, renderer, TRUE);
gtk_tree_view_column_add_attribute (
column, renderer, "text", COLUMN_DISPLAY_NAME);
gtk_tree_view_append_column (tree_view, column);
/* Listen for tree view selection changes. */
selection = gtk_tree_view_get_selection (tree_view);
selector->priv->selection = g_object_ref (selection);
handler_id = g_signal_connect (
selection, "changed",
G_CALLBACK (proxy_selector_selection_changed_cb), selector);
selector->priv->selection_changed_handler_id = handler_id;
/* Create and populate the tree model. */
list_store = gtk_list_store_new (2, G_TYPE_STRING, E_TYPE_SOURCE);
gtk_tree_view_set_model (tree_view, GTK_TREE_MODEL (list_store));
g_object_unref (list_store);
e_proxy_selector_refresh (E_PROXY_SELECTOR (object));
}
static void
proxy_selector_update_toolbar_actions (ETreeViewFrame *tree_view_frame)
{
EProxySelector *selector;
ESource *selected;
GtkAction *action;
gboolean sensitive;
selector = E_PROXY_SELECTOR (tree_view_frame);
selected = e_proxy_selector_ref_selected (selector);
action = e_tree_view_frame_lookup_toolbar_action (
tree_view_frame, E_TREE_VIEW_FRAME_ACTION_REMOVE);
sensitive = e_source_get_removable (selected);
gtk_action_set_sensitive (action, sensitive);
g_object_unref (selected);
/* Chain up to parent's update_toolbar_actions() method. */
E_TREE_VIEW_FRAME_CLASS (e_proxy_selector_parent_class)->
update_toolbar_actions (tree_view_frame);
}
static void
e_proxy_selector_class_init (EProxySelectorClass *class)
{
GObjectClass *object_class;
ETreeViewFrameClass *tree_view_frame_class;
g_type_class_add_private (class, sizeof (EProxySelectorPrivate));
object_class = G_OBJECT_CLASS (class);
object_class->set_property = proxy_selector_set_property;
object_class->get_property = proxy_selector_get_property;
object_class->dispose = proxy_selector_dispose;
object_class->constructed = proxy_selector_constructed;
tree_view_frame_class = E_TREE_VIEW_FRAME_CLASS (class);
tree_view_frame_class->update_toolbar_actions =
proxy_selector_update_toolbar_actions;
g_object_class_install_property (
object_class,
PROP_REGISTRY,
g_param_spec_object (
"registry",
"Registry",
"Data source registry",
E_TYPE_SOURCE_REGISTRY,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY |
G_PARAM_STATIC_STRINGS));
g_object_class_install_property (
object_class,
PROP_SELECTED,
g_param_spec_object (
"selected",
"Selected",
"The selected data source",
E_TYPE_SOURCE,
G_PARAM_READWRITE |
G_PARAM_STATIC_STRINGS));
}
static void
e_proxy_selector_init (EProxySelector *selector)
{
selector->priv = E_PROXY_SELECTOR_GET_PRIVATE (selector);
/* In this particular case, it's easier to connect handlers
* to detailed signal names than to override the class method. */
g_signal_connect (
selector,
"toolbar-action-activate::"
E_TREE_VIEW_FRAME_ACTION_ADD,
G_CALLBACK (proxy_selector_action_add_cb), NULL);
g_signal_connect (
selector,
"toolbar-action-activate::"
E_TREE_VIEW_FRAME_ACTION_REMOVE,
G_CALLBACK (proxy_selector_action_remove_cb), NULL);
}
/**
* e_proxy_selector_new:
* @registry: an #ESourceRegistry
*
* Creates a new #EProxySelector widget using #ESource instances in @registry.
*
* Returns: a new #EProxySelector
**/
GtkWidget *
e_proxy_selector_new (ESourceRegistry *registry)
{
g_return_val_if_fail (E_IS_SOURCE_REGISTRY (registry), NULL);
return g_object_new (
E_TYPE_PROXY_SELECTOR,
"registry", registry, NULL);
}
/**
* e_proxy_selector_refresh:
* @selector: an #EProxySelector
*
* Rebuilds the @selector's list store with an updated list of #ESource
* instances that describe a network proxy profile, without disrupting the
* previously selected item (if possible).
*
* This funtion is called automatically in response to #ESourceRegistry
* signals which are pertinent to the @selector.
**/
void
e_proxy_selector_refresh (EProxySelector *selector)
{
ETreeViewFrame *tree_view_frame;
ESourceRegistry *registry;
GtkTreeView *tree_view;
GtkTreeModel *tree_model;
ESource *builtin_source;
ESource *selected;
GList *list, *link;
const gchar *extension_name;
g_return_if_fail (E_IS_PROXY_SELECTOR (selector));
if (selector->priv->refresh_idle_id > 0) {
g_source_remove (selector->priv->refresh_idle_id);
selector->priv->refresh_idle_id = 0;
}
tree_view_frame = E_TREE_VIEW_FRAME (selector);
tree_view = e_tree_view_frame_get_tree_view (tree_view_frame);
tree_model = gtk_tree_view_get_model (tree_view);
selected = e_proxy_selector_ref_selected (selector);
gtk_list_store_clear (GTK_LIST_STORE (tree_model));
extension_name = E_SOURCE_EXTENSION_PROXY;
registry = e_proxy_selector_get_registry (selector);
list = e_source_registry_list_enabled (registry, extension_name);
builtin_source = e_source_registry_ref_builtin_proxy (registry);
g_warn_if_fail (builtin_source != NULL);
/* Always list the built-in proxy profile first. */
link = g_list_find (list, builtin_source);
if (link != NULL && list != link) {
list = g_list_remove_link (list, link);
list = g_list_concat (link, list);
}
for (link = list; link != NULL; link = g_list_next (link)) {
ESource *source;
GtkTreeIter iter;
const gchar *display_name;
source = E_SOURCE (link->data);
display_name = e_source_get_display_name (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_SOURCE, source, -1);
}
g_clear_object (&builtin_source);
g_list_free_full (list, (GDestroyNotify) g_object_unref);
/* Try and restore the previous selected source or else pick
* the built-in proxy profile, which is always listed first. */
e_proxy_selector_set_selected (selector, selected);
g_clear_object (&selected);
}
/**
* e_proxy_selector_get_registry:
* @selector: an #EProxySelector
*
* Returns the #ESourceRegistry passed to e_proxy_selector_get_registry().
*
* Returns: an #ESourceRegistry
**/
ESourceRegistry *
e_proxy_selector_get_registry (EProxySelector *selector)
{
g_return_val_if_fail (E_IS_PROXY_SELECTOR (selector), NULL);
return selector->priv->registry;
}
/**
* e_proxy_selector_ref_selected:
* @selector: an #EProxySelector
*
* Returns the selected #ESource in @selector.
*
* The function tries to ensure a valid #ESource is always returned,
* falling back to e_source_registry_ref_builtin_proxy() if necessary.
*
* The returned #ESource is referenced for thread-safety and must be
* unreferenced with g_object_unref() when finished with it.
*
* Returns: an #ESource
**/
ESource *
e_proxy_selector_ref_selected (EProxySelector *selector)
{
ETreeViewFrame *tree_view_frame;
GtkTreeView *tree_view;
GtkTreeModel *tree_model;
GtkTreeSelection *selection;
GtkTreeIter iter;
ESource *source = NULL;
g_return_val_if_fail (E_IS_PROXY_SELECTOR (selector), NULL);
tree_view_frame = E_TREE_VIEW_FRAME (selector);
tree_view = e_tree_view_frame_get_tree_view (tree_view_frame);
selection = gtk_tree_view_get_selection (tree_view);
if (gtk_tree_selection_get_selected (selection, &tree_model, &iter)) {
gtk_tree_model_get (
tree_model, &iter,
COLUMN_SOURCE, &source, -1);
}
/* The built-in proxy profile is implicitly selected when
* no proxy profile is actually selected in the tree view. */
if (source == NULL) {
ESourceRegistry *registry;
registry = e_proxy_selector_get_registry (selector);
source = e_source_registry_ref_builtin_proxy (registry);
g_return_val_if_fail (source != NULL, NULL);
}
return source;
}
/**
* e_proxy_selector_set_selected:
* @selector: an #EProxySelector
* @source: an #ESource, or %NULL for the built-in proxy profile
*
* Finds the corresponding tree model row for @source, selects the row,
* and returns %TRUE. If no corresponding tree model row for @source is
* found, the selection remains unchanged and the function returns %FALSE.
*
* Returns: whether @source was selected
**/
gboolean
e_proxy_selector_set_selected (EProxySelector *selector,
ESource *source)
{
ETreeViewFrame *tree_view_frame;
GtkTreeView *tree_view;
GtkTreeModel *tree_model;
GtkTreeIter iter;
gboolean iter_valid;
g_return_val_if_fail (E_IS_PROXY_SELECTOR (selector), FALSE);
g_return_val_if_fail (source == NULL || E_IS_SOURCE (source), FALSE);
if (source == NULL) {
ESourceRegistry *registry;
registry = e_proxy_selector_get_registry (selector);
source = e_source_registry_ref_builtin_proxy (registry);
g_return_val_if_fail (source != NULL, FALSE);
}
tree_view_frame = E_TREE_VIEW_FRAME (selector);
tree_view = e_tree_view_frame_get_tree_view (tree_view_frame);
tree_model = gtk_tree_view_get_model (tree_view);
iter_valid = gtk_tree_model_get_iter_first (tree_model, &iter);
while (iter_valid) {
ESource *candidate = NULL;
gboolean match;
gtk_tree_model_get (
tree_model, &iter,
COLUMN_SOURCE, &candidate, -1);
match = e_source_equal (source, candidate);
g_object_unref (candidate);
if (match)
break;
iter_valid = gtk_tree_model_iter_next (tree_model, &iter);
}
if (iter_valid) {
GtkTreeSelection *selection;
selection = gtk_tree_view_get_selection (tree_view);
gtk_tree_selection_select_iter (selection, &iter);
}
return iter_valid;
}
