void
item_read_state_changed (itemPtr item, gboolean newState)
{
nodePtr node;
debug_start_measurement (DEBUG_GUI);
/* 1. set values in memory */
item->readStatus = newState;
item->updateStatus = FALSE;
/* 2. propagate to vfolders */
vfolder_foreach_data (vfolder_merge_item, item);
vfolder_foreach (node_update_counters);
/* 3. apply to DB */
db_item_state_update (item);
/* 4. update item list GUI state */
itemlist_update_item (item);
/* 5. updated feed list unread counters */
node = node_from_id (item->nodeId);
node_update_counters (node);
/* 6. update notification statistics */
feedlist_reset_new_item_count ();
/* 7. duplicate state propagation */
if (item->validGuid) {
GSList *duplicates, *iter;
duplicates = iter = db_item_get_duplicates (item->sourceId);
while (iter) {
itemPtr duplicate = item_load (GPOINTER_TO_UINT (iter->data));
/* The check on node_from_id() is an evil workaround
to handle "lost" items in the DB that have no
associated node in the feed list. This should be
fixed by having the feed list in the DB too, so
we can clean up correctly after crashes. */
if (duplicate && duplicate->id != item->id && node_from_id (duplicate->nodeId)) {
item_set_read_state (duplicate, newState);
}
if (duplicate) item_unload (duplicate);
iter = g_slist_next (iter);
}
g_slist_free (duplicates);
}
debug_end_measurement (DEBUG_GUI, "set read status");
}
void
item_flag_state_changed (itemPtr item, gboolean newState)
{
/* 1. set value in memory */
item->flagStatus = newState;
/* 2. save state to DB */
db_item_state_update (item);
/* 3. update vfolder counters */
vfolder_foreach (node_update_counters);
/* 4. update item list GUI state */
itemlist_update_item (item);
/* no duplicate state propagation to avoid copies
in the "Important" search folder */
}
void
item_flag_state_changed (itemPtr item, gboolean newState)
{
/* 1. set value in memory */
item->flagStatus = newState;
/* 2. propagate to vfolders */
vfolder_foreach_data (vfolder_merge_item, item);
vfolder_foreach (node_update_counters);
/* 3. save state to DB */
db_item_state_update (item);
/* 4. update item list GUI state */
itemlist_update_item (item);
/* 5. update notification statistics */
feedlist_reset_new_item_count ();
/* no duplicate state propagation to avoid copies
in the "Important" search folder */
}
void
liferea_shell_create (GtkApplication *app, const gchar *overrideWindowState)
{
GtkUIManager *ui_manager;
GtkAccelGroup *accel_group;
GError *error = NULL;
gboolean toggle;
gchar *id;
debug_enter ("liferea_shell_create");
g_object_new (LIFEREA_SHELL_TYPE, NULL);
shell->priv->window = GTK_WINDOW (liferea_shell_lookup ("mainwindow"));
gtk_window_set_application (GTK_WINDOW (shell->priv->window), app);
/* 1.) menu creation */
debug0 (DEBUG_GUI, "Setting up menues");
shell->priv->itemlist = itemlist_create ();
/* Prepare some toggle button states */
conf_get_bool_value (REDUCED_FEEDLIST, &toggle);
liferea_shell_feedlist_toggle_entries[0].is_active = toggle;
ui_manager = gtk_ui_manager_new ();
shell->priv->generalActions = gtk_action_group_new ("GeneralActions");
gtk_action_group_set_translation_domain (shell->priv->generalActions, PACKAGE);
gtk_action_group_add_actions (shell->priv->generalActions, liferea_shell_action_entries, G_N_ELEMENTS (liferea_shell_action_entries), shell->priv);
gtk_action_group_add_toggle_actions (shell->priv->generalActions, liferea_shell_action_toggle_entries, G_N_ELEMENTS (liferea_shell_action_toggle_entries), shell->priv);
gtk_action_group_add_radio_actions (shell->priv->generalActions, liferea_shell_view_radio_entries, G_N_ELEMENTS (liferea_shell_view_radio_entries), itemlist_get_view_mode (), (GCallback)on_view_activate, (gpointer)TRUE);
gtk_action_group_add_toggle_actions (shell->priv->generalActions, liferea_shell_feedlist_toggle_entries, G_N_ELEMENTS (liferea_shell_feedlist_toggle_entries), shell->priv);
gtk_ui_manager_insert_action_group (ui_manager, shell->priv->generalActions, 0);
shell->priv->addActions = gtk_action_group_new ("AddActions");
gtk_action_group_set_translation_domain (shell->priv->addActions, PACKAGE);
gtk_action_group_add_actions (shell->priv->addActions, liferea_shell_add_action_entries, G_N_ELEMENTS (liferea_shell_add_action_entries), shell->priv);
gtk_ui_manager_insert_action_group (ui_manager, shell->priv->addActions, 0);
shell->priv->feedActions = gtk_action_group_new ("FeedActions");
gtk_action_group_set_translation_domain (shell->priv->feedActions, PACKAGE);
gtk_action_group_add_actions (shell->priv->feedActions, liferea_shell_feed_action_entries, G_N_ELEMENTS (liferea_shell_feed_action_entries), shell->priv);
gtk_ui_manager_insert_action_group (ui_manager, shell->priv->feedActions, 0);
shell->priv->readWriteActions = gtk_action_group_new("ReadWriteActions");
gtk_action_group_set_translation_domain (shell->priv->readWriteActions, PACKAGE);
gtk_action_group_add_actions (shell->priv->readWriteActions, liferea_shell_read_write_action_entries, G_N_ELEMENTS (liferea_shell_read_write_action_entries), shell->priv);
gtk_ui_manager_insert_action_group (ui_manager, shell->priv->readWriteActions, 0);
shell->priv->itemActions = gtk_action_group_new ("ItemActions");
gtk_action_group_set_translation_domain (shell->priv->itemActions, PACKAGE);
gtk_action_group_add_actions (shell->priv->itemActions, liferea_shell_item_action_entries, G_N_ELEMENTS (liferea_shell_item_action_entries), shell->priv);
gtk_ui_manager_insert_action_group (ui_manager, shell->priv->itemActions, 0);
accel_group = gtk_ui_manager_get_accel_group (ui_manager);
gtk_window_add_accel_group (GTK_WINDOW (shell->priv->window), accel_group);
g_object_unref (accel_group);
g_signal_connect (gtk_accel_map_get (), "changed", G_CALLBACK (on_accel_change), NULL);
if (!gtk_ui_manager_add_ui_from_string (ui_manager, liferea_shell_ui_desc, -1, &error))
g_error ("building menus failed: %s", error->message);
shell->priv->menubar = gtk_ui_manager_get_widget (ui_manager, "/MainwindowMenubar");
shell->priv->toolbar = gtk_ui_manager_get_widget (ui_manager, "/maintoolbar");
/* Ensure GTK3 toolbar shadows... */
gtk_style_context_add_class (gtk_widget_get_style_context (shell->priv->toolbar), "primary-toolbar");
/* what a pain, why is there no markup for this option? */
g_object_set (G_OBJECT (gtk_ui_manager_get_widget (ui_manager, "/maintoolbar/newFeedButton")), "is_important", TRUE, NULL);
g_object_set (G_OBJECT (gtk_ui_manager_get_widget (ui_manager, "/maintoolbar/nextUnreadButton")), "is_important", TRUE, NULL);
g_object_set (G_OBJECT (gtk_ui_manager_get_widget (ui_manager, "/maintoolbar/MarkAsReadButton")), "is_important", TRUE, NULL);
g_object_set (G_OBJECT (gtk_ui_manager_get_widget (ui_manager, "/maintoolbar/UpdateAllButton")), "is_important", TRUE, NULL);
g_object_set (G_OBJECT (gtk_ui_manager_get_widget (ui_manager, "/maintoolbar/SearchButton")), "is_important", TRUE, NULL);
/* 2.) setup containers */
debug0 (DEBUG_GUI, "Setting up widget containers");
gtk_box_pack_start (GTK_BOX (liferea_shell_lookup ("vbox1")), shell->priv->toolbar, FALSE, FALSE, 0);
gtk_box_reorder_child (GTK_BOX (liferea_shell_lookup ("vbox1")), shell->priv->toolbar, 0);
gtk_box_pack_start (GTK_BOX (liferea_shell_lookup ("vbox1")), shell->priv->menubar, FALSE, FALSE, 0);
gtk_box_reorder_child (GTK_BOX (liferea_shell_lookup ("vbox1")), shell->priv->menubar, 0);
gtk_widget_show_all(GTK_WIDGET(shell->priv->toolbar));
g_signal_connect ((gpointer) liferea_shell_lookup ("itemtabs"), "key_press_event",
G_CALLBACK (on_key_press_event_null_cb), NULL);
g_signal_connect ((gpointer) liferea_shell_lookup ("itemtabs"), "key_release_event",
G_CALLBACK (on_key_press_event_null_cb), NULL);
g_signal_connect ((gpointer) liferea_shell_lookup ("itemtabs"), "scroll_event",
G_CALLBACK (on_notebook_scroll_event_null_cb), NULL);
g_signal_connect (G_OBJECT (shell->priv->window), "delete_event", G_CALLBACK(on_close), shell->priv);
g_signal_connect (G_OBJECT (shell->priv->window), "window_state_event", G_CALLBACK(on_window_state_event), shell->priv);
g_signal_connect (G_OBJECT (shell->priv->window), "key_press_event", G_CALLBACK(on_key_press_event), shell->priv);
/* 3.) setup status bar */
debug0 (DEBUG_GUI, "Setting up status bar");
shell->priv->statusbar = GTK_STATUSBAR (liferea_shell_lookup ("statusbar"));
shell->priv->statusbarLocked = FALSE;
shell->priv->statusbarLockTimer = 0;
shell->priv->statusbar_feedsinfo = gtk_label_new("");
gtk_widget_show(shell->priv->statusbar_feedsinfo);
gtk_box_pack_start (GTK_BOX (shell->priv->statusbar), shell->priv->statusbar_feedsinfo, FALSE, FALSE, 5);
/* 4.) setup tabs */
debug0 (DEBUG_GUI, "Setting up tabbed browsing");
shell->priv->tabs = browser_tabs_create (GTK_NOTEBOOK (liferea_shell_lookup ("browsertabs")));
/* 5.) setup feed list */
debug0 (DEBUG_GUI, "Setting up feed list");
shell->priv->feedlistView = GTK_TREE_VIEW (liferea_shell_lookup ("feedlist"));
feed_list_view_init (shell->priv->feedlistView);
/* 6.) setup menu sensivity */
debug0 (DEBUG_GUI, "Initialising menues");
/* On start, no item or feed is selected, so Item menu should be insensitive: */
liferea_shell_update_item_menu (FALSE);
/* necessary to prevent selection signals when filling the feed list
and setting the 2/3 pane mode view */
gtk_widget_set_sensitive (GTK_WIDGET (shell->priv->feedlistView), FALSE);
/* 7.) setup item view */
debug0 (DEBUG_GUI, "Setting up item view");
shell->priv->itemview = itemview_create (GTK_WIDGET (shell->priv->window));
/* 8.) load icons as required */
debug0 (DEBUG_GUI, "Loading icons");
icons_load ();
/* 9.) update and restore all menu elements */
liferea_shell_update_toolbar ();
liferea_shell_update_history_actions ();
liferea_shell_setup_URL_receiver ();
liferea_shell_restore_state (overrideWindowState);
gtk_widget_set_sensitive (GTK_WIDGET (shell->priv->feedlistView), TRUE);
/* 10.) After main window is realized get theme colors and set up feed
list and tray icon */
render_init_theme_colors (GTK_WIDGET (shell->priv->window));
shell->priv->feedlist = feedlist_create ();
g_signal_connect (shell->priv->feedlist, "new-items",
G_CALLBACK (liferea_shell_update_unread_stats), shell->priv->feedlist);
/* 11.) Restore latest selection */
// FIXME: Move to feed list code
if (conf_get_str_value (LAST_NODE_SELECTED, &id)) {
feed_list_view_select (node_from_id (id));
g_free (id);
}
/* 12. Setup shell plugins */
shell->priv->extensions = peas_extension_set_new (PEAS_ENGINE (liferea_plugins_engine_get_default ()),
LIFEREA_TYPE_SHELL_ACTIVATABLE, "shell", shell, NULL);
g_signal_connect (shell->priv->extensions, "extension-added", G_CALLBACK (on_extension_added), shell);
g_signal_connect (shell->priv->extensions, "extension-removed", G_CALLBACK (on_extension_removed), shell);
peas_extension_set_call (shell->priv->extensions, "activate");
/* 14. Rebuild search folders if needed */
if (searchFolderRebuild)
vfolder_foreach (vfolder_rebuild);
debug_exit ("liferea_shell_create");
}
guint
itemset_merge_items (itemSetPtr itemSet, GList *list, gboolean allowUpdates, gboolean markAsRead)
{
GList *iter, *droppedItems = NULL, *items = NULL;
guint i, max, length, toBeDropped, newCount = 0, flagCount = 0;
nodePtr node;
debug_start_measurement (DEBUG_UPDATE);
debug2 (DEBUG_UPDATE, "old item set %p of (node id=%s):", itemSet, itemSet->nodeId);
/* 1. Preparation: determine effective maximum cache size
The problem here is that the configured maximum cache
size might not always be sufficient. We need to check
border use cases in the following. */
length = g_list_length (list);
max = itemset_get_max_item_count (itemSet);
/* Preload all items for flag counting and later merging comparison */
iter = itemSet->ids;
while (iter) {
itemPtr item = item_load (GPOINTER_TO_UINT (iter->data));
if (item) {
items = g_list_append (items, item);
if (item->flagStatus)
flagCount++;
}
iter = g_list_next (iter);
}
debug1(DEBUG_UPDATE, "current cache size: %d", g_list_length(itemSet->ids));
debug1(DEBUG_UPDATE, "current cache limit: %d", max);
debug1(DEBUG_UPDATE, "downloaded feed size: %d", g_list_length(list));
debug1(DEBUG_UPDATE, "flag count: %d", flagCount);
/* Case #1: Avoid having too many flagged items. We count the
flagged items and check if they are fewer than
<cache limit> - <downloaded items>
to ensure that all new items fit in a feed cache full of
flagged items.
This handling MUST NOT be invoked when the number of items
is larger then the cache size, otherwise we would never
remove any items for large feeds. */
if ((length < max) && (max < length + flagCount)) {
max = flagCount + length;
debug2 (DEBUG_UPDATE, "too many flagged items -> increasing cache limit to %u (node id=%s)", max, itemSet->nodeId);
}
/* 2. Avoid cache wrapping (if feed size > cache size)
Truncate the new itemset if it is longer than
the maximum cache size which could cause items
to be dropped and added again on subsequent
merges with the same feed content */
if (length > max) {
debug2 (DEBUG_UPDATE, "item list too long (%u, max=%u) for merging!", length, max);
/* reach max element */
for(i = 0, iter = list; (i < max) && iter; ++i)
iter = g_list_next (iter);
/* and remove all following elements */
while (iter) {
itemPtr item = (itemPtr) iter->data;
debug2 (DEBUG_UPDATE, "ignoring item nr %u (%s)...", ++i, item_get_title (item));
item_unload (item);
iter = g_list_next (iter);
list = g_list_remove (list, item);
}
}
/* 3. Merge received items to existing item set
Items are given in top to bottom display order.
Adding them in this order would mean to reverse
their order in the merged list, so merging needs
to be done bottom to top. During this step the
item list (items) may exceed the cache limit. */
iter = g_list_last (list);
while (iter) {
itemPtr item = (itemPtr)iter->data;
if (markAsRead)
item->readStatus = TRUE;
if (itemset_merge_item (itemSet, items, item, length, allowUpdates)) {
newCount++;
items = g_list_prepend (items, iter->data);
}
iter = g_list_previous (iter);
}
g_list_free (list);
vfolder_foreach (node_update_counters);
node = node_from_id (itemSet->nodeId);
if (node && (NODE_SOURCE_TYPE (node)->capabilities & NODE_SOURCE_CAPABILITY_ITEM_STATE_SYNC))
node_update_counters (node);
debug1(DEBUG_UPDATE, "added %d new items", newCount);
/* 4. Apply cache limit for effective item set size
and unload older items as necessary. In this step
it is important never to drop flagged items and
to drop the oldest items only. */
if (g_list_length (items) > max)
toBeDropped = g_list_length (items) - max;
else
toBeDropped = 0;
debug3 (DEBUG_UPDATE, "%u new items, cache limit is %u -> dropping %u items", newCount, max, toBeDropped);
items = g_list_sort (items, itemset_sort_by_date);
iter = g_list_last (items);
while (iter) {
itemPtr item = (itemPtr) iter->data;
if (toBeDropped > 0 && !item->flagStatus) {
debug2 (DEBUG_UPDATE, "dropping item nr %u (%s)....", item->id, item_get_title (item));
droppedItems = g_list_append (droppedItems, item);
/* no unloading here, it's done in itemlist_remove_items() */
toBeDropped--;
} else {
item_unload (item);
}
iter = g_list_previous (iter);
}
if (droppedItems) {
itemlist_remove_items (itemSet, droppedItems);
g_list_free (droppedItems);
}
/* 5. Sanity check to detect merging bugs */
if (g_list_length (items) > itemset_get_max_item_count (itemSet) + flagCount)
debug0 (DEBUG_CACHE, "Fatal: Item merging bug! Resulting item list is too long! Cache limit does not work. This is a severe program bug!");
g_list_free (items);
debug_end_measurement (DEBUG_UPDATE, "merge itemset");
return newCount;
}