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authorTed Gould <ted@gould.cx>2011-03-29 14:28:49 -0500
committerTed Gould <ted@gould.cx>2011-03-29 14:28:49 -0500
commit9f61fa02077c8a0ec1f0477a3b284d828d7bbff8 (patch)
tree40c3f5786909d230cee559547ea30fd6d582f69c /src/timezone-completion.c
parent20bbf39bdad31e943d0a292bdf4d73bed6d65928 (diff)
parent3f00f0b2b0790d6d8429d6d6812fcb78dcad9d7b (diff)
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Handle enter on the default case by selecting the first entry instead of entering a blank item.
Diffstat (limited to 'src/timezone-completion.c')
-rw-r--r--src/timezone-completion.c109
1 files changed, 107 insertions, 2 deletions
diff --git a/src/timezone-completion.c b/src/timezone-completion.c
index 2e1afc0..ddeef29 100644
--- a/src/timezone-completion.c
+++ b/src/timezone-completion.c
@@ -24,6 +24,7 @@ with this program. If not, see <http://www.gnu.org/licenses/>.
#include <json-glib/json-glib.h>
#include <gdk/gdk.h>
+#include <gdk/gdkkeysyms.h>
#include <glib/gi18n.h>
#include "timezone-completion.h"
#include "tz.h"
@@ -41,6 +42,7 @@ struct _TimezoneCompletionPrivate
GtkEntry * entry;
guint queued_request;
guint changed_id;
+ guint keypress_id;
GCancellable * cancel;
gchar * request_text;
GHashTable * request_table;
@@ -313,6 +315,7 @@ entry_changed (GtkEntry * entry, TimezoneCompletion * completion)
if (priv->queued_request) {
g_source_remove (priv->queued_request);
+ priv->queued_request = 0;
}
/* See if we've already got this one */
@@ -328,6 +331,94 @@ entry_changed (GtkEntry * entry, TimezoneCompletion * completion)
gtk_entry_completion_complete (GTK_ENTRY_COMPLETION (completion));
}
+static GtkWidget *
+get_descendent (GtkWidget * parent, GType type)
+{
+ if (g_type_is_a (G_OBJECT_TYPE (parent), type))
+ return parent;
+
+ if (GTK_IS_CONTAINER (parent)) {
+ GList * children = gtk_container_get_children (GTK_CONTAINER (parent));
+ GList * iter;
+ for (iter = children; iter; iter = iter->next) {
+ GtkWidget * found = get_descendent (GTK_WIDGET (iter->data), type);
+ if (found) {
+ g_list_free (children);
+ return found;
+ }
+ }
+ g_list_free (children);
+ }
+
+ return NULL;
+}
+
+/**
+ * The popup window and its GtkTreeView are private to our parent completion
+ * object. We can't get access to discover if there is a highlighted item or
+ * even if the window is showing right now. So this is a super hack to find
+ * it by looking through our toplevel's window group and finding a window with
+ * a GtkTreeView that points at our model. There should be only one ever, so
+ * we'll use the first one we find.
+ */
+static GtkTreeView *
+find_popup_treeview (GtkWidget * widget, GtkTreeModel * model)
+{
+ GtkWidget * toplevel = gtk_widget_get_toplevel (widget);
+ if (!GTK_IS_WINDOW (toplevel))
+ return NULL;
+
+ GtkWindowGroup * group = gtk_window_get_group (GTK_WINDOW (toplevel));
+ GList * windows = gtk_window_group_list_windows (group);
+ GList * iter;
+ for (iter = windows; iter; iter = iter->next) {
+ if (iter->data == toplevel)
+ continue; // Skip our own window, we don't have it
+ GtkWidget * view = get_descendent (GTK_WIDGET (iter->data), GTK_TYPE_TREE_VIEW);
+ if (view != NULL) {
+ GtkTreeModel * tree_model = gtk_tree_view_get_model (GTK_TREE_VIEW (view));
+ if (GTK_IS_TREE_MODEL_FILTER (tree_model))
+ tree_model = gtk_tree_model_filter_get_model (GTK_TREE_MODEL_FILTER (tree_model));
+ if (tree_model == model) {
+ g_list_free (windows);
+ return GTK_TREE_VIEW (view);
+ }
+ }
+ }
+ g_list_free (windows);
+
+ return NULL;
+}
+
+static gboolean
+entry_keypress (GtkEntry * entry, GdkEventKey *event, TimezoneCompletion * completion)
+{
+ if (event->keyval == GDK_ISO_Enter ||
+ event->keyval == GDK_KP_Enter ||
+ event->keyval == GDK_Return) {
+ /* Make sure that user has a selection to choose, otherwise ignore */
+ GtkTreeModel * model = gtk_entry_completion_get_model (GTK_ENTRY_COMPLETION (completion));
+ GtkTreeView * view = find_popup_treeview (GTK_WIDGET (entry), model);
+ if (view == NULL) {
+ // Just beep if popup hasn't appeared yet.
+ gtk_widget_error_bell (GTK_WIDGET (entry));
+ return TRUE;
+ }
+
+ GtkTreeSelection * sel = gtk_tree_view_get_selection (view);
+ GtkTreeModel * sel_model = NULL;
+ if (!gtk_tree_selection_get_selected (sel, &sel_model, NULL)) {
+ // No selection, we should help them out and select first item in list
+ GtkTreeIter iter;
+ if (gtk_tree_model_get_iter_first (sel_model, &iter))
+ gtk_tree_selection_select_iter (sel, &iter);
+ // And fall through to normal handler code
+ }
+ }
+
+ return FALSE;
+}
+
void
timezone_completion_watch_entry (TimezoneCompletion * completion, GtkEntry * entry)
{
@@ -338,15 +429,22 @@ timezone_completion_watch_entry (TimezoneCompletion * completion, GtkEntry * ent
priv->queued_request = 0;
}
if (priv->entry) {
- g_source_remove (priv->changed_id);
+ g_signal_handler_disconnect (priv->entry, priv->changed_id);
+ g_signal_handler_disconnect (priv->entry, priv->keypress_id);
g_object_remove_weak_pointer (G_OBJECT (priv->entry), (gpointer *)&priv->entry);
+ gtk_entry_set_completion (priv->entry, NULL);
}
guint id = g_signal_connect (entry, "changed", G_CALLBACK (entry_changed), completion);
priv->changed_id = id;
+ id = g_signal_connect (entry, "key-press-event", G_CALLBACK (entry_keypress), completion);
+ priv->keypress_id = id;
+
priv->entry = entry;
g_object_add_weak_pointer (G_OBJECT (entry), (gpointer *)&priv->entry);
+
+ gtk_entry_set_completion (entry, GTK_ENTRY_COMPLETION (completion));
}
static GtkListStore *
@@ -468,10 +566,17 @@ timezone_completion_dispose (GObject * object)
TimezoneCompletionPrivate * priv = TIMEZONE_COMPLETION_GET_PRIVATE (completion);
if (priv->changed_id) {
- g_source_remove (priv->changed_id);
+ if (priv->entry)
+ g_signal_handler_disconnect (priv->entry, priv->changed_id);
priv->changed_id = 0;
}
+ if (priv->keypress_id) {
+ if (priv->entry)
+ g_signal_handler_disconnect (priv->entry, priv->keypress_id);
+ priv->keypress_id = 0;
+ }
+
if (priv->entry != NULL) {
g_object_remove_weak_pointer (G_OBJECT (priv->entry), (gpointer *)&priv->entry);
}