slider door handle with lock

Please help us locate a part to replace this. We tried Home Depot, the part we purchased could have worked but existing holes on the door were uncovered and also the handle had a skinny grip/handle. The mounted door part is about 71/2 inches in length by 1 1/8 inch wide on the inside. It would be nice to have the outside handle metal as well, instead of plastic like it is now. That is the part that broke. My name is Melinda if you have questions. Thank you kindly!