1 files changed, 109 insertions, 0 deletions
diff --git a/src/com/android/gallery3d/app/ThreeDButton.java b/src/com/android/gallery3d/app/ThreeDButton.java
new file mode 100755
index 000000000..4cc146ab9
--- /dev/null
+++ b/src/com/android/gallery3d/app/ThreeDButton.java
@@ -0,0 +1,109 @@
+/*
+ * Copyright (c) 2016, The Linux Foundation. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above
+ *    copyright notice, this list of conditions and the following
+ *    disclaimer in the documentation and/or other materials provided
+ *    with the distribution.
+ *  * Neither the name of The Linux Foundation nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+ * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+ * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package com.android.gallery3d.app;
+
+import android.content.Context;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.View.OnClickListener;
+import android.view.ViewGroup;
+import android.view.animation.AlphaAnimation;
+import android.view.animation.Animation;
+import android.widget.RelativeLayout;
+
+import org.codeaurora.gallery.R;
+
+public class ThreeDButton implements OnClickListener {
+    interface Delegate {
+        boolean canDisplay3DButton();
+
+        void on3DButtonClicked();
+    }
+
+    private Delegate mDelegate;
+    private ViewGroup root;
+    private ViewGroup mContainer;
+    private boolean mContainerVisible = false;
+
+    private Animation mAnimIn = new AlphaAnimation(0f, 1f);
+    private Animation mAnimOut = new AlphaAnimation(1f, 0f);
+    private static final int ANIM_DURATION = 200;
+
+    public ThreeDButton(Delegate delegate, Context context, RelativeLayout layout) {
+        mDelegate = delegate;
+        root = layout;
+        LayoutInflater inflater = (LayoutInflater) context
+                .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
+        mContainer = (ViewGroup) inflater
+                .inflate(R.layout.three_d_button, root, false);
+        mContainer.findViewById(R.id.three_dimensional).setOnClickListener(this);
+        root.addView(mContainer);
+        mAnimIn.setDuration(ANIM_DURATION);
+        mAnimOut.setDuration(ANIM_DURATION);
+    }
+
+    @Override
+    public void onClick(View view) {
+        if (mContainer.getVisibility() == View.VISIBLE) {
+            mDelegate.on3DButtonClicked();
+        }
+    }
+
+    public void refresh() {
+        boolean visible = mDelegate.canDisplay3DButton();
+        if (visible != mContainerVisible) {
+            if (visible) {
+                show();
+            } else {
+                hide();
+            }
+            mContainerVisible = visible;
+        }
+    }
+
+    private void hide() {
+        mContainer.clearAnimation();
+        mAnimOut.reset();
+        mContainer.startAnimation(mAnimOut);
+        mContainer.setVisibility(View.GONE);
+    }
+
+    private void show() {
+        mContainer.clearAnimation();
+        mAnimIn.reset();
+        mContainer.startAnimation(mAnimIn);
+        mContainer.setVisibility(View.VISIBLE);
+    }
+
+    public void cleanup() {
+        root.removeView(mContainer);
+    }
+
+}