For #355 - re-adds the request desktop functionality

app/src/main/java/org/mozilla/fenix/browser/BrowserFragment.kt

@@ -32,6 +32,7 @@ import org.mozilla.fenix.ext.requireComponents
 import mozilla.components.feature.prompts.PromptFeature
 import org.mozilla.fenix.BackHandler
 import org.mozilla.fenix.components.FindInPageIntegration
+import org.mozilla.fenix.ext.share
 import org.mozilla.fenix.mvi.ActionBusFactory
 import org.mozilla.fenix.mvi.getSafeManagedObservable
 import org.mozilla.fenix.search.toolbar.SearchAction
@@ -184,6 +185,8 @@ class BrowserFragment : Fragment(), BackHandler {
         promptsFeature.onActivityResult(requestCode, resultCode, data)
     }
 
+    // This method triggers the complexity warning. However it's actually not that hard to understand.
+    @SuppressWarnings("ComplexMethod")
     private fun handleToolbarItemInteraction(action: SearchAction.ToolbarMenuItemTapped) {
         val sessionUseCases = requireComponents.useCases.sessionUseCases
         when (action.item) {
@@ -194,7 +197,9 @@ class BrowserFragment : Fragment(), BackHandler {
                 .navigate(R.id.action_browserFragment_to_settingsActivity, null, null)
             is ToolbarMenu.Item.Library -> Navigation.findNavController(toolbar)
                 .navigate(R.id.action_browserFragment_to_libraryFragment, null, null)
-            else -> return
+            is ToolbarMenu.Item.RequestDesktop -> sessionUseCases.requestDesktopSite.invoke(action.item.isChecked)
+            is ToolbarMenu.Item.Share -> requireComponents.core.sessionManager
+                .selectedSession?.url?.apply { requireContext().share(this) }
         }
     }
 

app/src/main/java/org/mozilla/fenix/search/toolbar/ToolbarMenu.kt

@@ -12,7 +12,11 @@ import mozilla.components.browser.menu.item.BrowserMenuItemToolbar
 import mozilla.components.browser.menu.item.BrowserMenuSwitch
 import org.mozilla.fenix.R
 
-class ToolbarMenu(private val context: Context, private val onItemTapped: (Item) -> Unit = {}) {
+class ToolbarMenu(
+    private val context: Context,
+    private val requestDesktopStateProvider: () -> Boolean = { false },
+    private val onItemTapped: (Item) -> Unit = {}
+) {
     sealed class Item {
         object Help : Item()
         object Settings : Item()
@@ -88,11 +92,10 @@ class ToolbarMenu(private val context: Context, private val onItemTapped: (Item)
 
             BrowserMenuDivider(),
 
-            BrowserMenuSwitch(context.getString(R.string.browser_menu_desktop_site), {
-                false
-            }) { checked ->
-                onItemTapped.invoke(Item.RequestDesktop(checked))
-            },
+            BrowserMenuSwitch(context.getString(R.string.browser_menu_desktop_site),
+                requestDesktopStateProvider, { checked ->
+                    onItemTapped.invoke(Item.RequestDesktop(checked))
+            }),
 
             BrowserMenuImageText(
                 context.getString(R.string.browser_menu_find_in_page),

app/src/main/java/org/mozilla/fenix/search/toolbar/ToolbarUIView.kt

@@ -64,7 +64,10 @@ class ToolbarUIView(
             toolbarIntegration = ToolbarIntegration(
                 this,
                 view,
-                ToolbarMenu(this) { actionEmitter.onNext(SearchAction.ToolbarMenuItemTapped(it)) },
+                ToolbarMenu(this,
+                    requestDesktopStateProvider = { components.core.sessionManager.selectedSessionOrThrow.desktopMode },
+                    onItemTapped = { actionEmitter.onNext(SearchAction.ToolbarMenuItemTapped(it)) }
+                ),
                 ShippedDomainsProvider().also { it.initialize(this) },
                 components.core.historyStorage,
                 components.core.sessionManager,