Merge pull request #12604 from Isira-Seneviratne/Refactor-EmptyState

Author: Stypox

app/src/main/java/org/schabi/newpipe/fragments/list/channel/ChannelFragment.java

@@ -3,6 +3,7 @@
 import static org.schabi.newpipe.ktx.TextViewUtils.animateTextColor;
 import static org.schabi.newpipe.ktx.ViewUtils.animate;
 import static org.schabi.newpipe.ktx.ViewUtils.animateBackgroundColor;
+import static org.schabi.newpipe.ui.emptystate.EmptyStateUtil.setEmptyStateComposable;
 
 import android.content.Context;
 import android.content.SharedPreferences;
@@ -45,7 +46,6 @@
 import org.schabi.newpipe.local.feed.notifications.NotificationHelper;
 import org.schabi.newpipe.local.subscription.SubscriptionManager;
 import org.schabi.newpipe.ui.emptystate.EmptyStateSpec;
-import org.schabi.newpipe.ui.emptystate.EmptyStateUtil;
 import org.schabi.newpipe.util.ChannelTabHelper;
 import org.schabi.newpipe.util.Constants;
 import org.schabi.newpipe.util.ExtractorHelper;
@@ -200,10 +200,7 @@ public boolean onMenuItemSelected(@NonNull final MenuItem item) {
     protected void initViews(final View rootView, final Bundle savedInstanceState) {
         super.initViews(rootView, savedInstanceState);
 
-        EmptyStateUtil.setEmptyStateComposable(
-                binding.emptyStateView,
-                EmptyStateSpec.Companion.getContentNotSupported()
-        );
+        setEmptyStateComposable(binding.emptyStateView, EmptyStateSpec.ContentNotSupported);
 
         tabAdapter = new TabAdapter(getChildFragmentManager());
         binding.viewPager.setAdapter(tabAdapter);

app/src/main/java/org/schabi/newpipe/fragments/list/search/SearchFragment.java

@@ -3,6 +3,7 @@
 import static androidx.recyclerview.widget.ItemTouchHelper.Callback.makeMovementFlags;
 import static org.schabi.newpipe.extractor.utils.Utils.isBlank;
 import static org.schabi.newpipe.ktx.ViewUtils.animate;
+import static org.schabi.newpipe.ui.emptystate.EmptyStateUtil.setEmptyStateComposable;
 import static org.schabi.newpipe.util.ExtractorHelper.showMetaInfoInTextView;
 import static java.util.Arrays.asList;
 
@@ -66,7 +67,6 @@
 import org.schabi.newpipe.local.history.HistoryRecordManager;
 import org.schabi.newpipe.settings.NewPipeSettings;
 import org.schabi.newpipe.ui.emptystate.EmptyStateSpec;
-import org.schabi.newpipe.ui.emptystate.EmptyStateUtil;
 import org.schabi.newpipe.util.Constants;
 import org.schabi.newpipe.util.DeviceUtils;
 import org.schabi.newpipe.util.ExtractorHelper;
@@ -357,9 +357,7 @@ public void onActivityResult(final int requestCode, final int resultCode, final
     protected void initViews(final View rootView, final Bundle savedInstanceState) {
         super.initViews(rootView, savedInstanceState);
 
-        EmptyStateUtil.setEmptyStateComposable(
-                searchBinding.emptyStateView,
-                EmptyStateSpec.Companion.getNoSearchResult());
+        setEmptyStateComposable(searchBinding.emptyStateView, EmptyStateSpec.NoSearchResult);
 
         searchBinding.suggestionsList.setAdapter(suggestionListAdapter);
         // animations are just strange and useless, since the suggestions keep changing too much

app/src/main/java/org/schabi/newpipe/local/bookmark/BookmarkFragment.java

@@ -15,6 +15,7 @@
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 import androidx.appcompat.app.AlertDialog;
+import androidx.compose.ui.platform.ComposeView;
 import androidx.fragment.app.FragmentManager;
 import androidx.recyclerview.widget.ItemTouchHelper;
 import androidx.recyclerview.widget.RecyclerView;
@@ -125,10 +126,8 @@ protected void initViews(final View rootView, final Bundle savedInstanceState) {
         super.initViews(rootView, savedInstanceState);
 
         itemListAdapter.setUseItemHandle(true);
-        EmptyStateUtil.setEmptyStateComposable(
-                rootView.findViewById(R.id.empty_state_view),
-                EmptyStateSpec.Companion.getNoBookmarkedPlaylist()
-        );
+        final ComposeView emptyView = rootView.findViewById(R.id.empty_state_view);
+        EmptyStateUtil.setEmptyStateComposable(emptyView, EmptyStateSpec.NoBookmarkedPlaylist);
     }
 
     @Override

app/src/main/java/org/schabi/newpipe/settings/SelectChannelFragment.java

@@ -95,8 +95,7 @@ public View onCreateView(@NonNull final LayoutInflater inflater, final ViewGroup
         progressBar = v.findViewById(R.id.progressBar);
         emptyView = v.findViewById(R.id.empty_state_view);
 
-        EmptyStateUtil.setEmptyStateComposable(emptyView,
-                EmptyStateSpec.Companion.getNoSubscriptions());
+        EmptyStateUtil.setEmptyStateComposable(emptyView, EmptyStateSpec.NoSubscriptions);
         progressBar.setVisibility(View.VISIBLE);
         recyclerView.setVisibility(View.GONE);
         emptyView.setVisibility(View.GONE);

app/src/main/java/org/schabi/newpipe/settings/SelectPlaylistFragment.java

@@ -65,8 +65,7 @@ public View onCreateView(@NonNull final LayoutInflater inflater, final ViewGroup
         recyclerView = v.findViewById(R.id.items_list);
         emptyView = v.findViewById(R.id.empty_state_view);
 
-        EmptyStateUtil.setEmptyStateComposable(emptyView,
-                EmptyStateSpec.Companion.getNoBookmarkedPlaylist());
+        EmptyStateUtil.setEmptyStateComposable(emptyView, EmptyStateSpec.NoBookmarkedPlaylist);
         recyclerView.setLayoutManager(new LinearLayoutManager(getContext()));
         final SelectPlaylistAdapter playlistAdapter = new SelectPlaylistAdapter();
         recyclerView.setAdapter(playlistAdapter);

app/src/main/java/org/schabi/newpipe/settings/preferencesearch/PreferenceSearchFragment.java

@@ -1,5 +1,7 @@
 package org.schabi.newpipe.settings.preferencesearch;
 
+import static org.schabi.newpipe.ui.emptystate.EmptyStateUtil.setEmptyStateComposable;
+
 import android.os.Bundle;
 import android.view.LayoutInflater;
 import android.view.View;
@@ -12,7 +14,6 @@
 
 import org.schabi.newpipe.databinding.SettingsPreferencesearchFragmentBinding;
 import org.schabi.newpipe.ui.emptystate.EmptyStateSpec;
-import org.schabi.newpipe.ui.emptystate.EmptyStateUtil;
 
 import java.util.List;
 
@@ -41,9 +42,7 @@ public View onCreateView(
         binding = SettingsPreferencesearchFragmentBinding.inflate(inflater, container, false);
 
         binding.searchResults.setLayoutManager(new LinearLayoutManager(getContext()));
-        EmptyStateUtil.setEmptyStateComposable(
-                binding.emptyStateView,
-                EmptyStateSpec.Companion.getNoSearchMaxSizeResult());
+        setEmptyStateComposable(binding.emptyStateView, EmptyStateSpec.NoSearchResult);
 
         adapter = new PreferenceSearchAdapter();
         adapter.setOnItemClickListener(this::onItemClicked);

app/src/main/java/org/schabi/newpipe/ui/components/video/comment/CommentRepliesDialog.kt

@@ -19,7 +19,6 @@ import androidx.compose.ui.Modifier
 import androidx.compose.ui.input.nestedscroll.nestedScroll
 import androidx.compose.ui.platform.rememberNestedScrollInteropConnection
 import androidx.compose.ui.res.pluralStringResource
-import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.tooling.preview.datasource.LoremIpsum
 import androidx.compose.ui.unit.dp
@@ -122,28 +121,23 @@ private fun CommentRepliesDialog(
 
                 if (comments.itemCount == 0) {
                     item {
-                        val refresh = comments.loadState.refresh
-                        if (refresh is LoadState.Loading) {
-                            LoadingIndicator(modifier = Modifier.padding(top = 8.dp))
-                        } else if (refresh is LoadState.Error) {
-                            // TODO use error panel instead
-                            EmptyStateComposable(
-                                spec = EmptyStateSpec.DisabledComments.copy(
-                                    descriptionText = {
-                                        stringResource(R.string.error_unable_to_load_comments)
+                        when (val refresh = comments.loadState.refresh) {
+                            is LoadState.Loading -> {
+                                LoadingIndicator(modifier = Modifier.padding(top = 8.dp))
+                            }
+                            else -> {
+                                // TODO use error panel instead
+                                EmptyStateComposable(
+                                    spec = if (refresh is LoadState.Error) {
+                                        EmptyStateSpec.ErrorLoadingComments
+                                    } else {
+                                        EmptyStateSpec.NoComments
                                     },
-                                ),
-                                modifier = Modifier
-                                    .fillMaxWidth()
-                                    .heightIn(min = 128.dp)
-                            )
-                        } else {
-                            EmptyStateComposable(
-                                spec = EmptyStateSpec.NoComments,
-                                modifier = Modifier
-                                    .fillMaxWidth()
-                                    .heightIn(min = 128.dp)
-                            )
+                                    modifier = Modifier
+                                        .fillMaxWidth()
+                                        .heightIn(min = 128.dp)
+                                )
+                            }
                         }
                     }
                 } else {

app/src/main/java/org/schabi/newpipe/ui/components/video/comment/CommentSection.kt

@@ -15,7 +15,6 @@ import androidx.compose.ui.Modifier
 import androidx.compose.ui.input.nestedscroll.nestedScroll
 import androidx.compose.ui.platform.rememberNestedScrollInteropConnection
 import androidx.compose.ui.res.pluralStringResource
-import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
 import androidx.lifecycle.compose.collectAsStateWithLifecycle
@@ -75,7 +74,6 @@ private fun CommentSection(
                                 modifier = Modifier
                                     .fillMaxWidth()
                                     .heightIn(min = 128.dp)
-
                             )
                         }
                     } else if (count == 0) {
@@ -111,13 +109,7 @@ private fun CommentSection(
                             is LoadState.Error -> {
                                 item {
                                     // TODO use error panel instead
-                                    EmptyStateComposable(
-                                        EmptyStateSpec.DisabledComments.copy(
-                                            descriptionText = {
-                                                stringResource(R.string.error_unable_to_load_comments)
-                                            }
-                                        )
-                                    )
+                                    EmptyStateComposable(EmptyStateSpec.ErrorLoadingComments)
                                 }
                             }
 
@@ -134,11 +126,7 @@ private fun CommentSection(
                     item {
                         // TODO use error panel instead
                         EmptyStateComposable(
-                            spec = EmptyStateSpec.DisabledComments.copy(
-                                descriptionText = {
-                                    stringResource(R.string.error_unable_to_load_comments)
-                                }
-                            ),
+                            spec = EmptyStateSpec.ErrorLoadingComments,
                             modifier = Modifier
                                 .fillMaxWidth()
                                 .heightIn(min = 128.dp)

app/src/main/java/org/schabi/newpipe/ui/emptystate/EmptyStateComposable.kt

@@ -1,6 +1,7 @@
 package org.schabi.newpipe.ui.emptystate
 
 import android.graphics.Color
+import androidx.annotation.StringRes
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.fillMaxWidth
@@ -22,25 +23,14 @@ import org.schabi.newpipe.ui.theme.AppTheme
 fun EmptyStateComposable(
     spec: EmptyStateSpec,
     modifier: Modifier = Modifier,
-) = EmptyStateComposable(
-    emojiText = spec.emojiText(),
-    descriptionText = spec.descriptionText(),
-    modifier = modifier
-)
-
-@Composable
-private fun EmptyStateComposable(
-    emojiText: String,
-    descriptionText: String,
-    modifier: Modifier = Modifier,
 ) {
     Column(
         modifier = modifier,
         horizontalAlignment = Alignment.CenterHorizontally,
-        verticalArrangement = Arrangement.Center
+        verticalArrangement = Arrangement.Center,
     ) {
         Text(
-            text = emojiText,
+            text = spec.emojiText,
             style = MaterialTheme.typography.titleLarge,
             textAlign = TextAlign.Center,
         )
@@ -49,7 +39,7 @@ private fun EmptyStateComposable(
             modifier = Modifier
                 .padding(top = 6.dp)
                 .padding(horizontal = 16.dp),
-            text = descriptionText,
+            text = stringResource(spec.descriptionText),
             style = MaterialTheme.typography.bodyMedium,
             textAlign = TextAlign.Center,
         )
@@ -82,66 +72,48 @@ fun EmptyStateComposableNoCommentPreview() {
     }
 }
 
-data class EmptyStateSpec(
-    val emojiText: @Composable () -> String,
-    val descriptionText: @Composable () -> String,
+enum class EmptyStateSpec(
+    val emojiText: String,
+    @field:StringRes val descriptionText: Int,
 ) {
-    companion object {
-
-        val GenericError =
-            EmptyStateSpec(
-                emojiText = { "¯\\_(ツ)_/¯" },
-                descriptionText = { stringResource(id = R.string.empty_list_subtitle) },
-            )
-
-        val NoVideos =
-            EmptyStateSpec(
-                emojiText = { "(╯°-°)╯" },
-                descriptionText = { stringResource(id = R.string.no_videos) },
-            )
-
-        val NoComments =
-            EmptyStateSpec(
-
-                emojiText = { "¯\\_(╹x╹)_/¯" },
-                descriptionText = { stringResource(id = R.string.no_comments) },
-            )
-
-        val DisabledComments =
-            NoComments.copy(
-                descriptionText = { stringResource(id = R.string.comments_are_disabled) },
-            )
-
-        val NoSearchResult =
-            NoComments.copy(
-                emojiText = { "╰(°●°╰)" },
-                descriptionText = { stringResource(id = R.string.search_no_results) }
-            )
-
-        val NoSearchMaxSizeResult =
-            NoSearchResult
-
-        val ContentNotSupported =
-            NoComments.copy(
-                emojiText = { "(︶︹︺)" },
-                descriptionText = { stringResource(id = R.string.content_not_supported) },
-            )
-
-        val NoBookmarkedPlaylist =
-            EmptyStateSpec(
-                emojiText = { "(╥﹏╥)" },
-                descriptionText = { stringResource(id = R.string.no_playlist_bookmarked_yet) },
-            )
-
-        val NoSubscriptionsHint =
-            EmptyStateSpec(
-                emojiText = { "(꩜ᯅ꩜)" },
-                descriptionText = { stringResource(id = R.string.import_subscriptions_hint) },
-            )
-
-        val NoSubscriptions =
-            NoSubscriptionsHint.copy(
-                descriptionText = { stringResource(id = R.string.no_channel_subscribed_yet) },
-            )
-    }
+    GenericError(
+        emojiText = "¯\\_(ツ)_/¯",
+        descriptionText = R.string.empty_list_subtitle,
+    ),
+    NoVideos(
+        emojiText = "(╯°-°)╯",
+        descriptionText = R.string.no_videos,
+    ),
+    NoComments(
+        emojiText = "¯\\_(╹x╹)_/¯",
+        descriptionText = R.string.no_comments,
+    ),
+    DisabledComments(
+        emojiText = "¯\\_(╹x╹)_/¯",
+        descriptionText = R.string.comments_are_disabled,
+    ),
+    ErrorLoadingComments(
+        emojiText = "¯\\_(╹x╹)_/¯",
+        descriptionText = R.string.error_unable_to_load_comments,
+    ),
+    NoSearchResult(
+        emojiText = "╰(°●°╰)",
+        descriptionText = R.string.search_no_results,
+    ),
+    ContentNotSupported(
+        emojiText = "(︶︹︺)",
+        descriptionText = R.string.content_not_supported,
+    ),
+    NoBookmarkedPlaylist(
+        emojiText = "(╥﹏╥)",
+        descriptionText = R.string.no_playlist_bookmarked_yet,
+    ),
+    NoSubscriptionsHint(
+        emojiText = "(꩜ᯅ꩜)",
+        descriptionText = R.string.import_subscriptions_hint,
+    ),
+    NoSubscriptions(
+        emojiText = "(꩜ᯅ꩜)",
+        descriptionText = R.string.no_channel_subscribed_yet,
+    ),
 }