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      1 /*
      2  * Copyright (C) 2013 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.android.camera.ui;
     18 
     19 import android.content.Context;
     20 import android.util.AttributeSet;
     21 import android.view.View;
     22 import android.widget.ImageButton;
     23 import android.widget.RelativeLayout;
     24 
     25 import com.android.camera.CameraActivity;
     26 import com.android.camera2.R;
     27 
     28 /**
     29  * Shows controls at the bottom of the screen for editing, viewing a photo
     30  * sphere image and creating a tiny planet from a photo sphere image.
     31  */
     32 public class FilmstripBottomControls extends RelativeLayout
     33     implements CameraActivity.OnActionBarVisibilityListener {
     34 
     35     /**
     36      * Classes implementing this interface can listen for events on the bottom
     37      * controls.
     38      */
     39     public static interface BottomControlsListener {
     40         /**
     41          * Called when the user pressed the "view photosphere" button.
     42          */
     43         public void onViewPhotoSphere();
     44 
     45         /**
     46          * Called when the user pressed the "edit" button.
     47          */
     48         public void onEdit();
     49 
     50         /**
     51          * Called when the user pressed the "tiny planet" button.
     52          */
     53         public void onTinyPlanet();
     54     }
     55 
     56     private BottomControlsListener mListener;
     57     private ImageButton mEditButton;
     58     private ImageButton mViewPhotoSphereButton;
     59     private ImageButton mTinyPlanetButton;
     60 
     61     public FilmstripBottomControls(Context context, AttributeSet attrs) {
     62         super(context, attrs);
     63     }
     64 
     65     @Override
     66     protected void onFinishInflate() {
     67         super.onFinishInflate();
     68         mEditButton = (ImageButton)
     69                 findViewById(R.id.filmstrip_bottom_control_edit);
     70         mEditButton.setOnClickListener(new OnClickListener() {
     71             @Override
     72             public void onClick(View view) {
     73                 if (mListener != null) {
     74                     mListener.onEdit();
     75                 }
     76             }
     77         });
     78 
     79         mViewPhotoSphereButton = (ImageButton)
     80                 findViewById(R.id.filmstrip_bottom_control_panorama);
     81         mViewPhotoSphereButton.setOnClickListener(new OnClickListener() {
     82             @Override
     83             public void onClick(View view) {
     84                 if (mListener != null) {
     85                     mListener.onViewPhotoSphere();
     86                 }
     87             }
     88         });
     89 
     90         mTinyPlanetButton = (ImageButton)
     91                 findViewById(R.id.filmstrip_bottom_control_tiny_planet);
     92         mTinyPlanetButton.setOnClickListener(new OnClickListener() {
     93             @Override
     94             public void onClick(View view) {
     95                 if (mListener != null) {
     96                     mListener.onTinyPlanet();
     97                 }
     98             }
     99         });
    100     }
    101 
    102     /**
    103      * Sets a new or replaces an existing listener for bottom control events.
    104      */
    105     public void setListener(BottomControlsListener listener) {
    106         mListener = listener;
    107     }
    108 
    109     /**
    110      * Sets the visibility of the edit button.
    111      */
    112     public void setEditButtonVisibility(boolean visible) {
    113         setVisibility(mEditButton, visible);
    114     }
    115 
    116     /**
    117      * Sets the visibility of the view-photosphere button.
    118      */
    119     public void setViewPhotoSphereButtonVisibility(boolean visible) {
    120         setVisibility(mViewPhotoSphereButton, visible);
    121     }
    122 
    123     /**
    124      * Sets the visibility of the tiny-planet button.
    125      */
    126     public void setTinyPlanetButtonVisibility(final boolean visible) {
    127         setVisibility(mTinyPlanetButton, visible);
    128     }
    129 
    130     /**
    131      * Sets the visibility of the given view.
    132      */
    133     private static void setVisibility(final View view, final boolean visible) {
    134         view.post(new Runnable() {
    135             @Override
    136             public void run() {
    137                 view.setVisibility(visible ? View.VISIBLE
    138                         : View.INVISIBLE);
    139             }
    140         });
    141     }
    142 
    143     @Override
    144     public void onActionBarVisibilityChanged(boolean isVisible) {
    145         // TODO: Fade in and out
    146         setVisibility(isVisible ? VISIBLE : INVISIBLE);
    147     }
    148 }
    149