Added full-screen support for image & video viewers

CHANGELOG.md

@@ -15,6 +15,7 @@ Group changes to describe their impact on the project, as follows:
 ### Added
 - Conference creation with scheduling, video, different layouts, showing who is speaking and who is muted, etc...
 - Chat rooms can be individually muted (no notification when receiving a chat message)
+- Image & Video in-app viewers allow for full-screen display
 
 ### Changed
 - In-call views have been re-designed

app/src/main/java/org/linphone/activities/main/MainActivity.kt

@@ -246,6 +246,10 @@ class MainActivity : GenericActivity(), SnackBarActivity, NavController.OnDestin
         currentFocus?.hideKeyboard()
     }
 
+    fun hideStatusFragment(hide: Boolean) {
+        statusFragment.visibility = if (hide) View.GONE else View.VISIBLE
+    }
+
     private fun updateTabsFragmentVisibility() {
         tabsFragment.visibility = if (tabsFragmentVisible1 && tabsFragmentVisible2) View.VISIBLE else View.GONE
     }

app/src/main/java/org/linphone/activities/main/files/fragments/ImageViewerFragment.kt

@@ -25,8 +25,10 @@ import android.view.View
 import androidx.lifecycle.ViewModelProvider
 import androidx.navigation.fragment.findNavController
 import org.linphone.R
+import org.linphone.activities.main.MainActivity
 import org.linphone.activities.main.files.viewmodels.ImageFileViewModel
 import org.linphone.activities.main.files.viewmodels.ImageFileViewModelFactory
+import org.linphone.compatibility.Compatibility
 import org.linphone.core.tools.Log
 import org.linphone.databinding.FileImageViewerFragmentBinding
 
@@ -53,5 +55,12 @@ class ImageViewerFragment : GenericViewerFragment<FileImageViewerFragmentBinding
             ImageFileViewModelFactory(content)
         )[ImageFileViewModel::class.java]
         binding.viewModel = viewModel
+
+        viewModel.fullScreenMode.observe(
+            viewLifecycleOwner
+        ) { hide ->
+            Compatibility.hideAndroidSystemUI(hide, requireActivity().window)
+            (requireActivity() as MainActivity).hideStatusFragment(hide)
+        }
     }
 }

app/src/main/java/org/linphone/activities/main/files/fragments/VideoViewerFragment.kt

@@ -26,8 +26,10 @@ import android.widget.MediaController
 import androidx.lifecycle.ViewModelProvider
 import androidx.navigation.fragment.findNavController
 import org.linphone.R
+import org.linphone.activities.main.MainActivity
 import org.linphone.activities.main.files.viewmodels.VideoFileViewModel
 import org.linphone.activities.main.files.viewmodels.VideoFileViewModelFactory
+import org.linphone.compatibility.Compatibility
 import org.linphone.core.tools.Log
 import org.linphone.databinding.FileVideoViewerFragmentBinding
 
@@ -67,6 +69,13 @@ class VideoViewerFragment : GenericViewerFragment<FileVideoViewerFragmentBinding
             }
         }
         initMediaController()
+
+        viewModel.fullScreenMode.observe(
+            viewLifecycleOwner
+        ) { hide ->
+            Compatibility.hideAndroidSystemUI(hide, requireActivity().window)
+            (requireActivity() as MainActivity).hideStatusFragment(hide)
+        }
     }
 
     override fun onResume() {

app/src/main/java/org/linphone/activities/main/files/viewmodels/FileViewerViewModel.kt

@@ -19,6 +19,7 @@
  */
 package org.linphone.activities.main.files.viewmodels
 
+import androidx.lifecycle.MutableLiveData
 import androidx.lifecycle.ViewModel
 import org.linphone.core.Content
 import org.linphone.core.tools.Log
@@ -28,6 +29,8 @@ open class FileViewerViewModel(val content: Content) : ViewModel() {
     val filePath: String
     private val deleteAfterUse: Boolean = content.isFileEncrypted
 
+    val fullScreenMode = MutableLiveData<Boolean>()
+
     init {
         filePath = if (deleteAfterUse) {
             Log.i("[File Viewer] Content is encrypted, requesting plain file path")
@@ -45,4 +48,8 @@ open class FileViewerViewModel(val content: Content) : ViewModel() {
 
         super.onCleared()
     }
+
+    fun toggleFullScreen() {
+        fullScreenMode.value = fullScreenMode.value != true
+    }
 }

app/src/main/res/layout/file_image_viewer_fragment.xml

@@ -20,6 +20,7 @@
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
             android:layout_alignParentTop="true"
+            android:visibility="@{viewModel.fullScreenMode ? View.GONE : View.VISIBLE}"
             tools:layout="@layout/file_viewer_top_bar_fragment" />
 
         <LinearLayout
@@ -32,6 +33,7 @@
                 android:layout_width="match_parent"
                 android:layout_height="match_parent"
                 android:adjustViewBounds="true"
+                android:onClick="@{() -> viewModel.toggleFullScreen()}"
                 android:scaleType="fitCenter"
                 coil="@{viewModel.filePath}"/>
 

app/src/main/res/layout/file_video_viewer_fragment.xml

@@ -20,6 +20,7 @@
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
             android:layout_alignParentTop="true"
+            android:visibility="@{viewModel.fullScreenMode ? View.GONE : View.VISIBLE}"
             tools:layout="@layout/file_viewer_top_bar_fragment" />
 
         <RelativeLayout
@@ -31,7 +32,8 @@
                 android:id="@+id/video_view"
                 android:layout_width="match_parent"
                 android:layout_height="match_parent"
-                android:layout_centerInParent="true"/>
+                android:layout_centerInParent="true"
+                android:onClick="@{() -> viewModel.toggleFullScreen()}"/>
 
         </RelativeLayout>