#454 💬↩️ Reply to comments

1 files changed, 62 insertions, 0 deletions

diff --git a/app/src/main/java/it/niedermann/nextcloud/deck/util/ViewUtil.java b/app/src/main/java/it/niedermann/nextcloud/deck/util/ViewUtil.java
index 4b5be2fae..1039b5c95 100644
--- a/app/src/main/java/it/niedermann/nextcloud/deck/util/ViewUtil.java
+++ b/app/src/main/java/it/niedermann/nextcloud/deck/util/ViewUtil.java
@@ -2,25 +2,35 @@ package it.niedermann.nextcloud.deck.util;
 
 import android.content.Context;
 import android.content.res.ColorStateList;
+import android.graphics.Bitmap;
 import android.graphics.Color;
 import android.graphics.drawable.Drawable;
 import android.net.Uri;
+import android.text.Spannable;
+import android.text.SpannableStringBuilder;
+import android.text.style.ImageSpan;
 import android.widget.ImageView;
 import android.widget.TextView;
 
 import androidx.annotation.DrawableRes;
 import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
 import androidx.annotation.Px;
 import androidx.core.graphics.drawable.DrawableCompat;
 import androidx.core.widget.TextViewCompat;
 
 import com.bumptech.glide.Glide;
 import com.bumptech.glide.request.RequestOptions;
+import com.bumptech.glide.request.target.CustomTarget;
+import com.bumptech.glide.request.transition.Transition;
 
 import java.util.Date;
+import java.util.List;
 
 import it.niedermann.nextcloud.deck.Application;
 import it.niedermann.nextcloud.deck.R;
+import it.niedermann.nextcloud.deck.model.Account;
+import it.niedermann.nextcloud.deck.model.ocs.comment.Mention;
 
 public final class ViewUtil {
     private ViewUtil() {
@@ -72,4 +82,56 @@ public final class ViewUtil {
     public static Drawable getTintedImageView(@NonNull Context context, @DrawableRes int imageId, int colorId) {
         return getTintedImageView(context, imageId, context.getResources().getString(colorId));
     }
+
+    /**
+     * Replaces all mentions in the textView with an avatar and the display name
+     *
+     * @param account  {@link Account} where the users of those mentions belong to
+     * @param mentions {@link List} of all mentions that should be substituted
+     * @param textView target {@link TextView}
+     */
+    public static void setupMentions(@NonNull Account account, @NonNull List<Mention> mentions, TextView textView) {
+        Context context = textView.getContext();
+        SpannableStringBuilder messageBuilder = new SpannableStringBuilder(textView.getText());
+
+        // Step 1
+        // Add avatar icons and display names
+        for (Mention m : mentions) {
+            final String mentionId = "@" + m.getMentionId();
+            final String mentionDisplayName = " " + m.getMentionDisplayName();
+            int index = messageBuilder.toString().lastIndexOf(mentionId);
+            while (index >= 0) {
+                messageBuilder.setSpan(new ImageSpan(context, R.drawable.ic_person_grey600_24dp), index, index + mentionId.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
+                messageBuilder.insert(index + mentionId.length(), mentionDisplayName);
+                index = messageBuilder.toString().substring(0, index).lastIndexOf(mentionId);
+            }
+        }
+        textView.setText(messageBuilder);
+
+        // Step 2
+        // Replace avatar icons with real avatars
+        final ImageSpan[] list = messageBuilder.getSpans(0, messageBuilder.length(), ImageSpan.class);
+        for (ImageSpan span : list) {
+            final int spanStart = messageBuilder.getSpanStart(span);
+            final int spanEnd = messageBuilder.getSpanEnd(span);
+            Glide.with(context)
+                    .asBitmap()
+                    .placeholder(R.drawable.ic_person_grey600_24dp)
+                    .load(account.getUrl() + "/index.php/avatar/" + messageBuilder.subSequence(spanStart + 1, spanEnd).toString() + "/" + DimensionUtil.dpToPx(context, R.dimen.icon_size_details))
+                    .apply(RequestOptions.circleCropTransform())
+                    .into(new CustomTarget<Bitmap>() {
+                        @Override
+                        public void onResourceReady(@NonNull Bitmap resource, @Nullable Transition<? super Bitmap> transition) {
+                            messageBuilder.removeSpan(span);
+                            messageBuilder.setSpan(new ImageSpan(context, resource), spanStart, spanEnd, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
+                        }
+
+                        @Override
+                        public void onLoadCleared(@Nullable Drawable placeholder) {
+                            // silence is gold
+                        }
+                    });
+        }
+        textView.setText(messageBuilder);
+    }
 }