damus

nostr ios client
git clone git://jb55.com/damus
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ProxyView.swift (3395B)

      1 //
      2 //  ProxyView.swift
      3 //  damus
      4 //
      5 //  Created by eric on 2/3/24.
      6 //
      7 
      8 import SwiftUI
      9 
     10 struct ProxyTag {
     11     let id: String
     12     let protocolName: String
     13     
     14     init(id: String, protocolName: String) {
     15         self.id = id
     16         self.protocolName = protocolName
     17     }
     18 }
     19 
     20 struct ProxyView: View {
     21     let event: NostrEvent
     22     
     23     @Environment(\.openURL) var openURL
     24     
     25     var body: some View {
     26         Group {
     27             if let proxy = event_proxy(ev: event) {
     28                 VStack(alignment: .leading) {
     29                     Button(
     30                         action: {
     31                             if let url = URL(string: proxy.id) {
     32                                 openURL(url)
     33                             }
     34                         },
     35                         label: {
     36                             HStack {
     37                                 let protocolLogo = get_protocol_image(protocolName: proxy.protocolName)
     38                                 if protocolLogo.isEmpty {
     39                                     Text(proxy.protocolName)
     40                                         .font(.caption)
     41                                 } else {
     42                                     Image(protocolLogo)
     43                                         .resizable()
     44                                         .scaledToFit()
     45                                         .frame(width: proxy.protocolName == "activitypub" ? 75 : 20, height: proxy.protocolName == "activitypub" ? 20 : 25)
     46                                 }
     47                             }
     48                         }
     49                     )
     50                     .buttonStyle(NeutralButtonStyle(padding: EdgeInsets(top: 2, leading: 5, bottom: 2, trailing: 5), cornerRadius: 20))
     51                 }
     52             } else {
     53                 EmptyView()
     54             }
     55         }
     56     }
     57 }
     58 
     59 func get_protocol_image(protocolName: String) -> String {
     60     switch protocolName {
     61     case "activitypub": return "activityPub"
     62     case "rss": return "rss"
     63     case "atproto": return "atproto"
     64     case "web": return "globe"
     65     default:
     66         return ""
     67     }
     68 }
     69 
     70 func event_proxy(ev: NostrEvent) -> ProxyTag? {
     71     var proxyParts = [String]()
     72     for tag in ev.tags {
     73         if tag.count == 3 && tag[0].matches_str("proxy") {
     74             proxyParts = tag.strings()
     75             guard proxyParts.count == 3 else {
     76                 return nil
     77             }
     78             return ProxyTag(id: proxyParts[1], protocolName: proxyParts[2])
     79         }
     80     }
     81     return nil
     82 }
     83 
     84 
     85 struct ProxyView_Previews: PreviewProvider {
     86     static var previews: some View {
     87         let activityPubEv = NostrEvent(content: "", keypair: test_keypair, kind: 1, tags: [["proxy", "", "activitypub"]])!
     88         let atProtoEv = NostrEvent(content: "", keypair: test_keypair, kind: 1, tags: [["proxy", "", "atproto"]])!
     89         let rssEv = NostrEvent(content: "", keypair: test_keypair, kind: 1, tags: [["proxy", "", "rss"]])!
     90         let webEv = NostrEvent(content: "", keypair: test_keypair, kind: 1, tags: [["proxy", "", "web"]])!
     91         let unsupportedEv = NostrEvent(content: "", keypair: test_keypair, kind: 1, tags: [["proxy", "", "unsupported"]])!
     92         VStack(alignment: .center, spacing: 10) {
     93             ProxyView(event: activityPubEv)
     94             ProxyView(event: rssEv)
     95             ProxyView(event: atProtoEv)
     96             ProxyView(event: webEv)
     97             ProxyView(event: unsupportedEv)
     98         }
     99     }
    100 }