1 files changed, 59 insertions, 2 deletions

diff --git a/app/src/main/java/it/niedermann/nextcloud/deck/ui/attachments/AttachmentViewHolder.java b/app/src/main/java/it/niedermann/nextcloud/deck/ui/attachments/AttachmentViewHolder.java
index 584a57d1d..6f4fe3c74 100644
--- a/app/src/main/java/it/niedermann/nextcloud/deck/ui/attachments/AttachmentViewHolder.java
+++ b/app/src/main/java/it/niedermann/nextcloud/deck/ui/attachments/AttachmentViewHolder.java
@@ -1,15 +1,72 @@
 package it.niedermann.nextcloud.deck.ui.attachments;
 
+import android.content.Context;
+import android.graphics.drawable.Drawable;
+import android.os.Build;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.fragment.app.FragmentActivity;
 import androidx.recyclerview.widget.RecyclerView;
 
+import com.bumptech.glide.Glide;
+import com.bumptech.glide.load.DataSource;
+import com.bumptech.glide.load.engine.GlideException;
+import com.bumptech.glide.request.RequestListener;
+import com.bumptech.glide.request.target.Target;
+
+import it.niedermann.nextcloud.deck.R;
 import it.niedermann.nextcloud.deck.databinding.ItemAttachmentBinding;
+import it.niedermann.nextcloud.deck.model.Account;
+import it.niedermann.nextcloud.deck.model.Attachment;
+import it.niedermann.nextcloud.deck.util.AttachmentUtil;
+import it.niedermann.nextcloud.deck.util.MimeTypeUtil;
 
 public class AttachmentViewHolder extends RecyclerView.ViewHolder {
-    public ItemAttachmentBinding binding;
+    @NonNull
+    private final Context parentContext;
+    @NonNull
+    private final ItemAttachmentBinding binding;
 
     @SuppressWarnings("WeakerAccess")
-    public AttachmentViewHolder(ItemAttachmentBinding binding) {
+    public AttachmentViewHolder(@NonNull Context parentContext, @NonNull ItemAttachmentBinding binding) {
         super(binding.getRoot());
+        this.parentContext = parentContext;
         this.binding = binding;
     }
+
+    public void bind(@NonNull Account account, @NonNull Attachment attachment, long cardRemoteId) {
+        if (MimeTypeUtil.isImage(attachment.getMimetype())) {
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
+                binding.preview.setTransitionName(parentContext.getString(R.string.transition_attachment_preview, String.valueOf(attachment.getLocalId())));
+            }
+            binding.preview.setImageResource(R.drawable.ic_image_grey600_24dp);
+            binding.preview.post(() -> {
+                final String uri = AttachmentUtil.getThumbnailUrl(account.getServerDeckVersionAsObject(), account.getUrl(), cardRemoteId, attachment, binding.preview.getWidth());
+                Glide.with(parentContext)
+                        .load(uri)
+                        .listener(new RequestListener<Drawable>() {
+                            @Override
+                            public boolean onLoadFailed(@Nullable GlideException e, Object model,
+                                                        Target<Drawable> target, boolean isFirstResource) {
+                                if (parentContext instanceof FragmentActivity) {
+                                    ((FragmentActivity) parentContext).supportStartPostponedEnterTransition();
+                                }
+                                return false;
+                            }
+
+                            @Override
+                            public boolean onResourceReady(Drawable resource, Object model,
+                                                           Target<Drawable> target, DataSource dataSource, boolean isFirstResource) {
+                                if (parentContext instanceof FragmentActivity) {
+                                    ((FragmentActivity) parentContext).supportStartPostponedEnterTransition();
+                                }
+                                return false;
+                            }
+                        })
+                        .error(R.drawable.ic_image_grey600_24dp)
+                        .into(binding.preview);
+            });
+        }
+    }
 }
\ No newline at end of file