1 files changed, 105 insertions, 0 deletions
diff --git a/WordPress/src/main/java/org/wordpress/android/ui/reader/views/ReaderLikingUsersView.java b/WordPress/src/main/java/org/wordpress/android/ui/reader/views/ReaderLikingUsersView.java
new file mode 100644
index 000000000..99da9256d
--- /dev/null
+++ b/WordPress/src/main/java/org/wordpress/android/ui/reader/views/ReaderLikingUsersView.java
@@ -0,0 +1,105 @@
+package org.wordpress.android.ui.reader.views;
+
+import android.content.Context;
+import android.os.Handler;
+import android.util.AttributeSet;
+import android.view.Gravity;
+import android.view.LayoutInflater;
+import android.widget.LinearLayout;
+
+import org.wordpress.android.R;
+import org.wordpress.android.datasets.ReaderLikeTable;
+import org.wordpress.android.datasets.ReaderUserTable;
+import org.wordpress.android.models.ReaderPost;
+import org.wordpress.android.models.ReaderUserIdList;
+import org.wordpress.android.widgets.WPNetworkImageView;
+
+import java.util.ArrayList;
+
+/*
+ * LinearLayout which shows liking users - used by ReaderPostDetailFragment
+ */
+public class ReaderLikingUsersView extends LinearLayout {
+    private final int mLikeAvatarSz;
+
+    public ReaderLikingUsersView(Context context) {
+        this(context, null);
+    }
+
+    public ReaderLikingUsersView(Context context, AttributeSet attrs) {
+        super(context, attrs);
+
+        setOrientation(HORIZONTAL);
+        setGravity(Gravity.CENTER_VERTICAL);
+
+        mLikeAvatarSz = context.getResources().getDimensionPixelSize(R.dimen.avatar_sz_small);
+    }
+
+    public void showLikingUsers(final ReaderPost post) {
+        if (post == null) {
+            return;
+        }
+
+        final Handler handler = new Handler();
+        new Thread() {
+            @Override
+            public void run() {
+                // get avatar URLs of liking users up to the max, sized to fit
+                int maxAvatars = getMaxAvatars();
+                ReaderUserIdList avatarIds = ReaderLikeTable.getLikesForPost(post);
+                final ArrayList<String> avatars = ReaderUserTable.getAvatarUrls(avatarIds, maxAvatars, mLikeAvatarSz);
+
+                handler.post(new Runnable() {
+                    @Override
+                    public void run() {
+                        showLikingAvatars(avatars);
+                    }
+                });
+            }
+        }.start();
+    }
+
+    /*
+     * returns count of avatars that can fit the current space
+     */
+    private int getMaxAvatars() {
+        int marginAvatar = getResources().getDimensionPixelSize(R.dimen.margin_extra_small);
+        int marginReader = getResources().getDimensionPixelSize(R.dimen.reader_detail_margin);
+        int likeAvatarSizeWithMargin = mLikeAvatarSz + (marginAvatar * 2);
+        int spaceForAvatars = getWidth() - (marginReader * 2);
+        return spaceForAvatars / likeAvatarSizeWithMargin;
+    }
+
+    /*
+     * note that the passed list of avatar urls has already been Photon-ized,
+     * so there's no need to do that here
+     */
+    private void showLikingAvatars(final ArrayList<String> avatarUrls) {
+        if (avatarUrls == null || avatarUrls.size() == 0) {
+            removeAllViews();
+            return;
+        }
+
+        // remove excess existing views
+        int numExistingViews = getChildCount();
+        if (numExistingViews > avatarUrls.size()) {
+            int numToRemove = numExistingViews - avatarUrls.size();
+            removeViews(numExistingViews - numToRemove, numToRemove);
+        }
+
+        int index = 0;
+        LayoutInflater inflater = LayoutInflater.from(getContext());
+        for (String url : avatarUrls) {
+            WPNetworkImageView imgAvatar;
+            // reuse existing view when possible, otherwise inflate a new one
+            if (index < numExistingViews) {
+                imgAvatar = (WPNetworkImageView) getChildAt(index);
+            } else {
+                imgAvatar = (WPNetworkImageView) inflater.inflate(R.layout.reader_like_avatar, this, false);
+                addView(imgAvatar);
+            }
+            imgAvatar.setImageUrl(url, WPNetworkImageView.ImageType.AVATAR);
+            index++;
+        }
+    }
+}
+\ No newline at end of file