1 files changed, 96 insertions, 0 deletions

diff --git a/WordPress/src/main/java/org/wordpress/android/ui/reader/views/ReaderFollowButton.java b/WordPress/src/main/java/org/wordpress/android/ui/reader/views/ReaderFollowButton.java
new file mode 100644
index 000000000..efd5484b8
--- /dev/null
+++ b/WordPress/src/main/java/org/wordpress/android/ui/reader/views/ReaderFollowButton.java
@@ -0,0 +1,96 @@
+package org.wordpress.android.ui.reader.views;
+
+import android.animation.Animator;
+import android.animation.AnimatorListenerAdapter;
+import android.animation.AnimatorSet;
+import android.animation.ObjectAnimator;
+import android.animation.ValueAnimator;
+import android.content.Context;
+import android.util.AttributeSet;
+import android.view.View;
+import android.view.animation.AccelerateDecelerateInterpolator;
+import android.widget.ImageView;
+import android.widget.LinearLayout;
+import android.widget.TextView;
+
+import org.wordpress.android.R;
+
+/**
+ * Follow button used in reader detail
+ */
+public class ReaderFollowButton extends LinearLayout {
+    private TextView mTextFollow;
+    private ImageView mImageFollow;
+    private boolean mIsFollowed;
+
+    public ReaderFollowButton(Context context){
+        super(context);
+        initView(context);
+    }
+
+    public ReaderFollowButton(Context context, AttributeSet attrs) {
+        super(context, attrs);
+        initView(context);
+    }
+
+    public ReaderFollowButton(Context context, AttributeSet attrs, int defStyle) {
+        super(context, attrs, defStyle);
+        initView(context);
+    }
+
+    private void initView(Context context) {
+        inflate(context, R.layout.reader_follow_button, this);
+        mTextFollow = (TextView) findViewById(R.id.text_follow_button);
+        mImageFollow = (ImageView) findViewById(R.id.image_follow_button);
+    }
+
+    private void updateFollowText() {
+        mTextFollow.setSelected(mIsFollowed);
+        mTextFollow.setText(mIsFollowed ? R.string.reader_btn_unfollow : R.string.reader_btn_follow);
+        mImageFollow.setImageResource(mIsFollowed ? R.drawable.reader_following : R.drawable.reader_follow);
+    }
+
+    @Override
+    public void setEnabled(boolean enabled) {
+        super.setEnabled(enabled);
+        mTextFollow.setEnabled(enabled);
+        mImageFollow.setEnabled(enabled);
+    }
+
+    public void setIsFollowed(boolean isFollowed) {
+        setIsFollowed(isFollowed, false);
+    }
+    public void setIsFollowedAnimated(boolean isFollowed) {
+        setIsFollowed(isFollowed, true);
+    }
+    private void setIsFollowed(boolean isFollowed, boolean animateChanges) {
+        if (isFollowed == mIsFollowed && mTextFollow.isSelected() == isFollowed) {
+            return;
+        }
+
+        mIsFollowed = isFollowed;
+
+        if (animateChanges) {
+            ObjectAnimator anim = ObjectAnimator.ofFloat(this, View.SCALE_Y, 1f, 0f);
+            anim.setRepeatMode(ValueAnimator.REVERSE);
+            anim.setRepeatCount(1);
+
+            anim.addListener(new AnimatorListenerAdapter() {
+                @Override
+                public void onAnimationRepeat(Animator animation) {
+                    updateFollowText();
+                }
+            });
+
+            long duration = getContext().getResources().getInteger(android.R.integer.config_shortAnimTime);
+            AnimatorSet set = new AnimatorSet();
+            set.play(anim);
+            set.setDuration(duration);
+            set.setInterpolator(new AccelerateDecelerateInterpolator());
+
+            set.start();
+        } else {
+            updateFollowText();
+        }
+    }
+}
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