Yes, Huawei P7' s smart leather case obviously copied the HTC One M8/Eye smart display case.
The shape design of Huawei mate7 copied the shape of HTC classic ONE series.
For your reference, please read: Practical and fun analysis of HTC M8 smart vertical display protective cover.
I hope I can help you, and I hope to adopt it!
Above is HTC's, and below is Huawei's: