Add doubleclick-to-open feature (Resolves #2)

src/mainwindow.c

@@ -337,6 +337,11 @@ static void mainWindow_connect_signals(struct mainWindow *mainWindow)
 			 (GCallback) mainWindow_entrySelected,
 			 mainWindow);
 
+	g_signal_connect(mainWindow->entryListView,
+			 "row-activated",
+			 (GCallback) mainWindow_entryActivated,
+			 mainWindow);
+
 	g_signal_connect(mainWindow->dateStart,
 			 "changed",
 			 (GCallback) mainWindow_filterChanged,
@@ -768,6 +773,37 @@ void mainWindow_entrySelected(GtkWidget *widget, gpointer user_data)
 	}
 }
 
+/**
+ * @brief mainWindow_entryActivated is the callback when the user doubleclicks or presses enter on an entry
+ * @param widget is the entryListView
+ * @param user_data struct mainWindow *
+ */
+void mainWindow_entryActivated(GtkWidget *widget, GtkTreePath *path, GtkTreeViewColumn *col, gpointer user_data)
+{
+	GFile *file;
+	GAppInfo *info;
+	GList *files = NULL;
+	GtkTreeModel *model;
+	GtkTreeIter iter;
+	GtkTreeView *treeview = (GtkTreeView*) widget;
+	gchar *name;
+
+	model = gtk_tree_view_get_model(treeview);
+
+	if (gtk_tree_model_get_iter(model, &iter, path)) {
+		g_info("Opening entry in external editor.");
+		gtk_tree_model_get(model, &iter, COL_URL, &name, -1);
+		file = g_file_new_for_path(name);
+		info = g_file_query_default_handler(file, NULL, NULL);
+		files = g_list_append(files, (gpointer) file);
+		g_app_info_launch(info, files, NULL, NULL);
+		g_free(name);
+		g_list_free(files); // Content is freed individually
+		g_object_unref(info);
+		g_object_unref(file);
+	}
+}
+
 /**
  * @brief mainWindow_filterChanged updates the filter backend values
  * @param widget The widget that caused the update request. Can be NULL to update all.

src/mainwindow.h

@@ -98,6 +98,7 @@ void mainWindow_workspaceListClicked(GtkWidget *widget,
 void mainWindow_clearSearch(GtkWidget *widget, gpointer user_data);
 void mainWindow_calendarSelected(GtkWidget *widget, gpointer user_data);
 void mainWindow_entrySelected(GtkWidget *widget, gpointer user_data);
+void mainWindow_entryActivated(GtkWidget *widget, GtkTreePath *path, GtkTreeViewColumn *col, gpointer user_data);
 void mainWindow_filterChanged(GtkWidget *widget, gpointer user_data);
 void mainWindow_workspace_search_changed(GtkWidget *widget, gpointer user_data);
 void mainWindow_checkDate(GtkWidget *widget, gint event, gpointer user_data);