Show content metadata below the description

app/src/main/java/org/schabi/newpipe/fragments/detail/DescriptionFragment.java

@@ -4,30 +4,46 @@
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
-import android.widget.TextView;
+import android.widget.LinearLayout;
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
+import androidx.annotation.StringRes;
+import androidx.appcompat.widget.TooltipCompat;
 import androidx.core.text.HtmlCompat;
 
+import com.google.android.material.chip.Chip;
+
 import org.schabi.newpipe.BaseFragment;
+import org.schabi.newpipe.R;
 import org.schabi.newpipe.databinding.FragmentDescriptionBinding;
+import org.schabi.newpipe.databinding.ItemMetadataBinding;
+import org.schabi.newpipe.databinding.ItemMetadataTagsBinding;
 import org.schabi.newpipe.extractor.stream.Description;
 import org.schabi.newpipe.extractor.stream.StreamInfo;
 import org.schabi.newpipe.util.Localization;
+import org.schabi.newpipe.util.NavigationHelper;
+import org.schabi.newpipe.util.ShareUtils;
 import org.schabi.newpipe.util.TextLinkifier;
 
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+
 import icepick.State;
 import io.reactivex.rxjava3.disposables.Disposable;
 
 import static android.text.TextUtils.isEmpty;
+import static org.schabi.newpipe.extractor.stream.StreamExtractor.NO_AGE_LIMIT;
+import static org.schabi.newpipe.extractor.utils.Utils.isBlank;
 
 public class DescriptionFragment extends BaseFragment {
 
     @State
     StreamInfo streamInfo = null;
     @Nullable
     Disposable descriptionDisposable = null;
+    FragmentDescriptionBinding binding;
 
     public DescriptionFragment() {
     }
@@ -40,11 +56,11 @@ public DescriptionFragment(final StreamInfo streamInfo) {
     public View onCreateView(@NonNull final LayoutInflater inflater,
                              @Nullable final ViewGroup container,
                              @Nullable final Bundle savedInstanceState) {
-        final FragmentDescriptionBinding binding =
-                FragmentDescriptionBinding.inflate(inflater, container, false);
+        binding = FragmentDescriptionBinding.inflate(inflater, container, false);
         if (streamInfo != null) {
-            setupUploadDate(binding.detailUploadDateView);
-            setupDescription(binding.detailDescriptionView);
+            setupUploadDate();
+            setupDescription();
+            setupMetadata(inflater, binding.detailMetadataLayout);
         }
         return binding.getRoot();
     }
@@ -57,37 +73,197 @@ public void onDestroy() {
         }
     }
 
-    private void setupUploadDate(final TextView uploadDateTextView) {
+
+    private void setupUploadDate() {
         if (streamInfo.getUploadDate() != null) {
-            uploadDateTextView.setText(Localization
+            binding.detailUploadDateView.setText(Localization
                     .localizeUploadDate(activity, streamInfo.getUploadDate().offsetDateTime()));
         } else {
-            uploadDateTextView.setVisibility(View.GONE);
+            binding.detailUploadDateView.setVisibility(View.GONE);
         }
     }
 
-    private void setupDescription(final TextView descriptionTextView) {
+
+    private void setupDescription() {
         final Description description = streamInfo.getDescription();
         if (description == null || isEmpty(description.getContent())
                 || description == Description.emptyDescription) {
-            descriptionTextView.setText("");
+            binding.detailDescriptionView.setVisibility(View.GONE);
+            binding.detailSelectDescriptionButton.setVisibility(View.GONE);
             return;
         }
 
+        // start with disabled state. This also loads description content (!)
+        disableDescriptionSelection();
+
+        binding.detailSelectDescriptionButton.setOnClickListener(v -> {
+            if (binding.detailDescriptionNoteView.getVisibility() == View.VISIBLE) {
+                disableDescriptionSelection();
+            } else {
+                // enable selection only when button is clicked to prevent flickering
+                enableDescriptionSelection();
+            }
+        });
+    }
+
+    private void enableDescriptionSelection() {
+        binding.detailDescriptionNoteView.setVisibility(View.VISIBLE);
+        binding.detailDescriptionView.setTextIsSelectable(true);
+
+        final String buttonLabel = getString(R.string.description_select_disable);
+        binding.detailSelectDescriptionButton.setContentDescription(buttonLabel);
+        TooltipCompat.setTooltipText(binding.detailSelectDescriptionButton, buttonLabel);
+        binding.detailSelectDescriptionButton.setImageResource(R.drawable.ic_close);
+    }
+
+    private void disableDescriptionSelection() {
+        // show description content again, otherwise some links are not clickable
+        loadDescriptionContent();
+
+        binding.detailDescriptionNoteView.setVisibility(View.GONE);
+        binding.detailDescriptionView.setTextIsSelectable(false);
+
+        final String buttonLabel = getString(R.string.description_select_enable);
+        binding.detailSelectDescriptionButton.setContentDescription(buttonLabel);
+        TooltipCompat.setTooltipText(binding.detailSelectDescriptionButton, buttonLabel);
+        binding.detailSelectDescriptionButton.setImageResource(R.drawable.ic_select_all);
+    }
+
+    private void loadDescriptionContent() {
+        final Description description = streamInfo.getDescription();
         switch (description.getType()) {
             case Description.HTML:
                 descriptionDisposable = TextLinkifier.createLinksFromHtmlBlock(requireContext(),
-                        description.getContent(), descriptionTextView,
+                        description.getContent(), binding.detailDescriptionView,
                         HtmlCompat.FROM_HTML_MODE_LEGACY);
                 break;
             case Description.MARKDOWN:
                 descriptionDisposable = TextLinkifier.createLinksFromMarkdownText(requireContext(),
-                        description.getContent(), descriptionTextView);
+                        description.getContent(), binding.detailDescriptionView);
                 break;
             case Description.PLAIN_TEXT: default:
                 descriptionDisposable = TextLinkifier.createLinksFromPlainText(requireContext(),
-                        description.getContent(), descriptionTextView);
+                        description.getContent(), binding.detailDescriptionView);
                 break;
         }
     }
+
+
+    private void setupMetadata(final LayoutInflater inflater,
+                               final LinearLayout layout) {
+        addMetadataItem(inflater, layout, false,
+                R.string.metadata_category, streamInfo.getCategory());
+
+        addTagsMetadataItem(inflater, layout);
+
+        addMetadataItem(inflater, layout, false,
+                R.string.metadata_licence, streamInfo.getLicence());
+
+        addPrivacyMetadataItem(inflater, layout);
+
+        if (streamInfo.getAgeLimit() != NO_AGE_LIMIT) {
+            addMetadataItem(inflater, layout, false,
+                    R.string.metadata_age_limit, String.valueOf(streamInfo.getAgeLimit()));
+        }
+
+        if (streamInfo.getLanguageInfo() != null) {
+            addMetadataItem(inflater, layout, false,
+                    R.string.metadata_language, streamInfo.getLanguageInfo().getDisplayLanguage());
+        }
+
+        addMetadataItem(inflater, layout, true,
+                R.string.metadata_support, streamInfo.getSupportInfo());
+        addMetadataItem(inflater, layout, true,
+                R.string.metadata_host, streamInfo.getHost());
+        addMetadataItem(inflater, layout, true,
+                R.string.metadata_thumbnail_url, streamInfo.getThumbnailUrl());
+    }
+
+    private void addMetadataItem(final LayoutInflater inflater,
+                                 final LinearLayout layout,
+                                 final boolean linkifyContent,
+                                 @StringRes final int type,
+                                 @Nullable final String content) {
+        if (isBlank(content)) {
+            return;
+        }
+
+        final ItemMetadataBinding itemBinding
+                = ItemMetadataBinding.inflate(inflater, layout, false);
+
+        itemBinding.metadataTypeView.setText(type);
+        itemBinding.metadataTypeView.setOnLongClickListener(v -> {
+            ShareUtils.copyToClipboard(requireContext(), content);
+            return true;
+        });
+
+        if (linkifyContent) {
+            TextLinkifier.createLinksFromPlainText(requireContext(),
+                    content, itemBinding.metadataContentView);
+        } else {
+            itemBinding.metadataContentView.setText(content);
+        }
+
+        layout.addView(itemBinding.getRoot());
+    }
+
+    private void addTagsMetadataItem(final LayoutInflater inflater, final LinearLayout layout) {
+        if (streamInfo.getTags() != null && !streamInfo.getTags().isEmpty()) {
+            final ItemMetadataTagsBinding itemBinding
+                    = ItemMetadataTagsBinding.inflate(inflater, layout, false);
+
+            final List<String> tags = new ArrayList<>(streamInfo.getTags());
+            Collections.sort(tags);
+            for (final String tag : tags) {
+                final Chip chip = (Chip) inflater.inflate(R.layout.chip,
+                        itemBinding.metadataTagsChips, false);
+                chip.setText(tag);
+                chip.setOnClickListener(this::onTagClick);
+                chip.setOnLongClickListener(this::onTagLongClick);
+                itemBinding.metadataTagsChips.addView(chip);
+            }
+
+            layout.addView(itemBinding.getRoot());
+        }
+    }
+
+    private void onTagClick(final View chip) {
+        if (getParentFragment() != null) {
+            NavigationHelper.openSearchFragment(getParentFragment().getParentFragmentManager(),
+                    streamInfo.getServiceId(), ((Chip) chip).getText().toString());
+        }
+    }
+
+    private boolean onTagLongClick(final View chip) {
+        ShareUtils.copyToClipboard(requireContext(), ((Chip) chip).getText().toString());
+        return true;
+    }
+
+    private void addPrivacyMetadataItem(final LayoutInflater inflater, final LinearLayout layout) {
+        if (streamInfo.getPrivacy() != null) {
+            @StringRes final int contentRes;
+            switch (streamInfo.getPrivacy()) {
+                case PUBLIC:
+                    contentRes = R.string.metadata_privacy_public;
+                    break;
+                case UNLISTED:
+                    contentRes = R.string.metadata_privacy_unlisted;
+                    break;
+                case PRIVATE:
+                    contentRes = R.string.metadata_privacy_private;
+                    break;
+                case INTERNAL:
+                    contentRes = R.string.metadata_privacy_internal;
+                    break;
+                case OTHER: default:
+                    contentRes = 0;
+                    break;
+            }
+
+            if (contentRes != 0) {
+                addMetadataItem(inflater, layout, false,
+                        R.string.metadata_privacy, getString(contentRes));
+            }
+        }
+    }
 }

app/src/main/res/drawable-night/ic_select_all.xml

@@ -0,0 +1,10 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24"
+    android:tint="#ffffff">
+  <path
+      android:fillColor="#ffffff"
+      android:pathData="M3,5h2L5,3c-1.1,0 -2,0.9 -2,2zM3,13h2v-2L3,11v2zM7,21h2v-2L7,19v2zM3,9h2L5,7L3,7v2zM13,3h-2v2h2L13,3zM19,3v2h2c0,-1.1 -0.9,-2 -2,-2zM5,21v-2L3,19c0,1.1 0.9,2 2,2zM3,17h2v-2L3,15v2zM9,3L7,3v2h2L9,3zM11,21h2v-2h-2v2zM19,13h2v-2h-2v2zM19,21c1.1,0 2,-0.9 2,-2h-2v2zM19,9h2L21,7h-2v2zM19,17h2v-2h-2v2zM15,21h2v-2h-2v2zM15,5h2L17,3h-2v2zM7,17h10L17,7L7,7v10zM9,9h6v6L9,15L9,9z"/>
+</vector>

app/src/main/res/drawable/ic_select_all.xml

@@ -0,0 +1,10 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24"
+    android:tint="#000000">
+  <path
+      android:fillColor="#000000"
+      android:pathData="M3,5h2L5,3c-1.1,0 -2,0.9 -2,2zM3,13h2v-2L3,11v2zM7,21h2v-2L7,19v2zM3,9h2L5,7L3,7v2zM13,3h-2v2h2L13,3zM19,3v2h2c0,-1.1 -0.9,-2 -2,-2zM5,21v-2L3,19c0,1.1 0.9,2 2,2zM3,17h2v-2L3,15v2zM9,3L7,3v2h2L9,3zM11,21h2v-2h-2v2zM19,13h2v-2h-2v2zM19,21c1.1,0 2,-0.9 2,-2h-2v2zM19,9h2L21,7h-2v2zM19,17h2v-2h-2v2zM15,21h2v-2h-2v2zM15,5h2L17,3h-2v2zM7,17h10L17,7L7,7v10zM9,9h6v6L9,15L9,9z"/>
+</vector>

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

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- This is used to inflate a chip with a Material theme, otherwise it would crash -->
+<!-- Theme.MaterialComponents.DayNight is used to guarantee auto day/night switching -->
+<com.google.android.material.chip.Chip xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="wrap_content"
+    android:layout_height="wrap_content"
+    android:theme="@style/Theme.MaterialComponents.DayNight.Bridge"
+    tools:text="I'm a correctly themed chip!" />