Desktop: Toggle todo checkbox using SPACE key

ReactNativeClient/lib/BaseModel.js

@@ -51,6 +51,16 @@ class BaseModel {
 		return -1;
 	}
 
+	static modelsByIds(items, ids) {
+		const output = [];
+		for (let i = 0; i < items.length; i++) {
+			if (ids.indexOf(items[i].id) >= 0) {
+				output.push(items[i]);
+			}
+		}
+		return output;
+	}
+
 	// Prefer the use of this function to compare IDs as it handles the case where
 	// one ID is null and the other is "", in which case they are actually considered to be the same.
 	static idsEqual(id1, id2) {

ReactNativeClient/lib/models/Note.js

@@ -474,6 +474,19 @@ class Note extends BaseItem {
 		return this.changeNoteType(note, !!note.is_todo ? 'note' : 'todo');
 	}
 
+	static toggleTodoCompleted(note) {
+		if (!('todo_completed' in note)) throw new Error('Missing "todo_completed" property');
+
+		note = Object.assign({}, note);
+		if (note.todo_completed) {
+			note.todo_completed = 0;
+		} else {
+			note.todo_completed = Date.now();
+		}
+		
+		return note;
+	}
+
 	static async duplicate(noteId, options = null) {
 		const changes = options && options.changes;
 		const uniqueTitle = options && options.uniqueTitle;