highlight candidate on press

Author: eagleoflqj

uipanel/Candidate.swift

@@ -16,20 +16,27 @@ struct CandidateView: View {
   let text: String
   let index: Int
   let highlighted: Int
+  @State private var isPressed = false
 
   var body: some View {
     Text(text).font(.system(size: candidateFontSize))
       .padding([.leading, .trailing], candidateHorizontalPadding)
       .padding([.top, .bottom], candidateVerticalPadding)
-      .background(index == highlighted ? getHighlightBackground(colorScheme) : .clear)
+      .background(index == highlighted || isPressed ? getHighlightBackground(colorScheme) : .clear)
       .cornerRadius(keyCornerRadius)
       .onTapGesture {
         selectCandidate(Int32(index))
-      }.onContextMenu {
-        let actions = deserialize([CandidateAction].self, String(getCandidateActions(Int32(index))))
-        return actions.map { action in
-          MenuItem(text: action.text, action: { activateCandidateAction(Int32(index), action.id) })
-        }
-      }
+      }.onContextMenu(
+        onPressingChanged: { pressing in
+          isPressed = pressing
+        },
+        {
+          let actions = deserialize(
+            [CandidateAction].self, String(getCandidateActions(Int32(index))))
+          return actions.map { action in
+            MenuItem(
+              text: action.text, action: { activateCandidateAction(Int32(index), action.id) })
+          }
+        })
   }
 }

uipanel/ContextMenu.swift

@@ -89,15 +89,17 @@ struct ContextMenuOverlay: View {
 
 // To get element frame on long press.
 struct LongPressMeasureModifier: ViewModifier {
+  let onPressingChanged: ((Bool) -> Void)?
   let getMenuItems: () -> [MenuItem]
   @State private var showMeasurement = false
 
   func body(content: Content) -> some View {
     ZStack {
       content
-        .onLongPressGesture {
-          showMeasurement = true
-        }
+        .onLongPressGesture(
+          perform: {
+            showMeasurement = true
+          }, onPressingChanged: onPressingChanged)
 
       if showMeasurement {
         GeometryReader { geometry in
@@ -118,7 +120,10 @@ struct LongPressMeasureModifier: ViewModifier {
 }
 
 extension View {
-  func onContextMenu(_ getMenuItems: @escaping () -> [MenuItem]) -> some View {
-    self.modifier(LongPressMeasureModifier(getMenuItems: getMenuItems))
+  func onContextMenu(
+    onPressingChanged: ((Bool) -> Void)? = nil, _ getMenuItems: @escaping () -> [MenuItem]
+  ) -> some View {
+    self.modifier(
+      LongPressMeasureModifier(onPressingChanged: onPressingChanged, getMenuItems: getMenuItems))
   }
 }