PageFragment: show the URL being loaded

The URL is shown in italic to distinguish between the current URL and
the URL that is currently being loaded. Unsure that it is enough, it
does not look very good to me anyway.

app/src/main/java/dev/lowrespalmtree/comet/PageFragment.kt

@@ -3,6 +3,7 @@ package dev.lowrespalmtree.comet
 import android.app.Activity
 import android.content.ActivityNotFoundException
 import android.content.Intent
+import android.graphics.Typeface
 import android.net.Uri
 import android.os.Bundle
 import android.text.InputType
@@ -136,9 +137,13 @@ class PageFragment : Fragment(), ContentAdapterListener {
             PageViewModel.State.IDLE -> {
                 binding.contentProgressBar.hide()
                 binding.contentSwipeLayout.isRefreshing = false
+                binding.addressBar.setText(vm.currentUrl)
+                binding.addressBar.setTypeface(null, Typeface.NORMAL)
             }
             PageViewModel.State.CONNECTING -> {
                 binding.contentProgressBar.show()
+                binding.addressBar.setText(vm.loadingUrl?.toString() ?: "")
+                binding.addressBar.setTypeface(null, Typeface.ITALIC)
             }
             PageViewModel.State.RECEIVING -> {
                 binding.appBarLayout.setExpanded(true, true)

app/src/main/java/dev/lowrespalmtree/comet/PageViewModel.kt

@@ -18,6 +18,8 @@ class PageViewModel(@Suppress("unused") private val savedStateHandle: SavedState
     ViewModel() {
     /** Currently viewed page URL. */
     var currentUrl: String = ""
+    /** Latest Uri requested using `sendGeminiRequest`. */
+    var loadingUrl: Uri? = null
     /** Observable page viewer state. */
     val state: MutableLiveData<State> by lazy { MutableLiveData<State>(State.IDLE) }
     /** Observable page viewer lines (backed up by `linesList` but updated less often). */
@@ -52,6 +54,7 @@ class PageViewModel(@Suppress("unused") private val savedStateHandle: SavedState
      */
     fun sendGeminiRequest(uri: Uri, connectionTimeout: Int, readTimeout: Int, redirects: Int = 0) {
         Log.d(TAG, "sendRequest: URI \"$uri\"")
+        loadingUrl = uri
         state.postValue(State.CONNECTING)
         requestJob?.apply { if (isActive) cancel() }
         requestJob = viewModelScope.launch(Dispatchers.IO) {