refactor: Use native panels

.package.resolved

@@ -27,15 +27,6 @@
         "version" : "3.8.0"
       }
     },
-    {
-      "identity" : "floatingpanel",
-      "kind" : "remoteSourceControl",
-      "location" : "https://github.com/SCENEE/FloatingPanel",
-      "state" : {
-        "revision" : "2a29cb5b3ecf4beb67cf524a030dd74a11b956c4",
-        "version" : "2.6.1"
-      }
-    },
     {
       "identity" : "ios-bug-tracker",
       "kind" : "remoteSourceControl",
@@ -224,6 +215,15 @@
         "version" : "1.5.2"
       }
     },
+    {
+      "identity" : "swiftbackports",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/shaps80/SwiftBackports",
+      "state" : {
+        "revision" : "fafbeabf78b7e364abbbb7565cdfeee42af16211",
+        "version" : "1.0.2"
+      }
+    },
     {
       "identity" : "swiftregex",
       "kind" : "remoteSourceControl",
@@ -260,6 +260,15 @@
         "version" : "1.3.0"
       }
     },
+    {
+      "identity" : "swiftuibackports",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/shaps80/SwiftUIBackports",
+      "state" : {
+        "revision" : "556d42f391b74059a354b81b8c8e19cc7cb576f4",
+        "version" : "1.15.1"
+      }
+    },
     {
       "identity" : "wrappinghstack",
       "kind" : "remoteSourceControl",

Mail/Views/SheetView.swift → Mail/Components/ActionsPanelButton.swift

@@ -16,34 +16,33 @@
  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+import CocoaLumberjackSwift
 import MailCore
 import MailResources
 import SwiftUI
 
-struct SheetView<Content>: View where Content: View {
-    @Environment(\.dismiss) private var dismiss
+struct ActionsPanelButton<Content: View>: View {
+    @Environment(\.isCompactWindow) private var isCompactWindow
 
-    @ViewBuilder let content: Content
+    @State private var actionsTarget: ActionsTarget?
 
-    var body: some View {
-        NavigationView {
-            content
-                .navigationBarItems(leading: Button {
-                    dismiss()
-                } label: {
-                    Label(MailResourcesStrings.Localizable.buttonClose, systemImage: "xmark")
-                })
-        }
-        .onReceive(NotificationCenter.default.publisher(for: Constants.dismissMoveSheetNotificationName)) { _ in
-            dismiss()
-        }
-    }
-}
+    var message: Message?
+    var threads: [Thread]?
+    var isMultiSelectionEnabled = false
+    @ViewBuilder var label: () -> Content
 
-struct SheetView_Previews: PreviewProvider {
-    static var previews: some View {
-        SheetView {
-            EmptyView()
+    var body: some View {
+        Button {
+            if let message {
+                actionsTarget = .message(message)
+            } else if let threads {
+                actionsTarget = .threads(threads, isMultiSelectionEnabled)
+            } else {
+                DDLogWarn("MoreButton has no action target, did you forget to set message or threads ?")
+            }
+        } label: {
+            label()
         }
+        .actionsPanel(actionsTarget: $actionsTarget)
     }
 }

Mail/Components/ToolbarButton.swift

@@ -20,28 +20,31 @@ import MailCore
 import MailResources
 import SwiftUI
 
-struct ToolbarButton: View {
+struct ToolbarButtonLabel: View {
     @Environment(\.verticalSizeClass) private var sizeClass
 
     let text: String
     let icon: Image
-    let action: () -> Void
 
-    init(text: String, icon: Image, action: @escaping () -> Void) {
-        self.text = text
-        self.icon = icon
-        self.action = action
+    var body: some View {
+        Label {
+            Text(text)
+                .textStyle(MailTextStyle.labelMediumAccent)
+        } icon: {
+            icon
+        }
+        .dynamicLabelStyle(sizeClass: sizeClass ?? .regular)
     }
+}
+
+struct ToolbarButton: View {
+    let text: String
+    let icon: Image
+    let action: () -> Void
 
     var body: some View {
         Button(action: action) {
-            Label {
-                Text(text)
-                    .textStyle(MailTextStyle.labelMediumAccent)
-            } icon: {
-                icon
-            }
-            .dynamicLabelStyle(sizeClass: sizeClass ?? .regular)
+            ToolbarButtonLabel(text: text, icon: icon)
         }
         .frame(maxWidth: .infinity)
     }

Mail/SceneDelegate.swift

@@ -101,7 +101,6 @@ class SceneDelegate: UIResponder, UIWindowSceneDelegate, AccountManagerDelegate
         let view = view.environment(\.window, window)
         // Set root view controller
         let hostingController = UIHostingController(rootView: view)
-        FloatingPanelHelper.shared.attachToViewController(hostingController)
         setRootViewController(hostingController)
     }
 

Mail/Utils/AdaptivePanelViewModifier.swift

@@ -0,0 +1,47 @@
+/*
+ Infomaniak Mail - iOS App
+ Copyright (C) 2022 Infomaniak Network SA
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+import SwiftUI
+
+extension View {
+    func adaptivePanel<Item: Identifiable, Content: View>(item: Binding<Item?>,
+                                                          @ViewBuilder content: @escaping (Item) -> Content) -> some View {
+        return modifier(AdaptivePanelViewModifier(item: item, panelContent: content))
+    }
+}
+
+struct AdaptivePanelViewModifier<Item: Identifiable, PanelContent: View>: ViewModifier {
+    @Environment(\.isCompactWindow) private var isCompactWindow
+
+    @Binding var item: Item?
+    @ViewBuilder var panelContent: (Item) -> PanelContent
+
+    func body(content: Content) -> some View {
+        if isCompactWindow {
+            content.floatingPanel(item: $item) { item in
+                panelContent(item)
+            }
+        } else {
+            content.popover(item: $item) { item in
+                panelContent(item)
+                    .padding()
+                    .frame(idealWidth: 400)
+            }
+        }
+    }
+}

MailCore/Utils/Environment+Extension.swift → Mail/Utils/Environment+Extension.swift

@@ -29,3 +29,14 @@ public extension EnvironmentValues {
         set { self[WindowKey.self] = newValue }
     }
 }
+
+public struct CompactWindowKey: EnvironmentKey {
+    public static let defaultValue = true
+}
+
+public extension EnvironmentValues {
+    var isCompactWindow: CompactWindowKey.Value {
+        get { return self[CompactWindowKey.self] }
+        set { self[CompactWindowKey.self] = newValue }
+    }
+}