forked from zelo72/mastodon-ios
31 lines
1.2 KiB
Swift
31 lines
1.2 KiB
Swift
//
|
|
// MediaPreviewableViewController.swift
|
|
// Mastodon
|
|
//
|
|
// Created by MainasuK Cirno on 2021-4-28.
|
|
//
|
|
|
|
import UIKit
|
|
|
|
protocol MediaPreviewableViewController: UIViewController {
|
|
var mediaPreviewTransitionController: MediaPreviewTransitionController { get }
|
|
func sourceFrame(transitionItem: MediaPreviewTransitionItem, index: Int) -> CGRect?
|
|
}
|
|
|
|
extension MediaPreviewableViewController {
|
|
func sourceFrame(transitionItem: MediaPreviewTransitionItem, index: Int) -> CGRect? {
|
|
switch transitionItem.source {
|
|
case .attachment(let mediaView):
|
|
return mediaView.superview?.convert(mediaView.frame, to: nil)
|
|
case .attachments(let mediaGridContainerView):
|
|
guard index < mediaGridContainerView.mediaViews.count else { return nil }
|
|
let mediaView = mediaGridContainerView.mediaViews[index]
|
|
return mediaView.superview?.convert(mediaView.frame, to: nil)
|
|
case .profileAvatar(let profileHeaderView):
|
|
return profileHeaderView.avatarButton.superview?.convert(profileHeaderView.avatarButton.frame, to: nil)
|
|
case .profileBanner:
|
|
return nil // fallback to snapshot.frame
|
|
}
|
|
}
|
|
}
|