Home | History | Annotate | Download | only in widget 
      1 /*
      2  * Copyright (C) 2015 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.dialer.widget;
     18 
     19 import android.content.Context;
     20 import android.util.AttributeSet;
     21 import android.util.Log;
     22 import android.view.LayoutInflater;
     23 import android.view.View;
     24 import android.widget.ImageView;
     25 import android.widget.LinearLayout;
     26 import android.widget.TextView;
     27 
     28 import com.android.dialer.R;
     29 
     30 public class EmptyContentView extends LinearLayout implements View.OnClickListener {
     31 
     32     public static final int NO_LABEL = 0;
     33     public static final int NO_IMAGE = 0;
     34 
     35     private ImageView mImageView;
     36     private TextView mDescriptionView;
     37     private TextView mActionView;
     38     private OnEmptyViewActionButtonClickedListener mOnActionButtonClickedListener;
     39 
     40     public interface OnEmptyViewActionButtonClickedListener {
     41         public void onEmptyViewActionButtonClicked();
     42     }
     43 
     44     public EmptyContentView(Context context) {
     45         this(context, null);
     46     }
     47 
     48     public EmptyContentView(Context context, AttributeSet attrs) {
     49         this(context, attrs, 0);
     50     }
     51 
     52     public EmptyContentView(Context context, AttributeSet attrs, int defStyleAttr) {
     53         this(context, attrs, defStyleAttr, 0);
     54     }
     55 
     56     public EmptyContentView(Context context, AttributeSet attrs, int defStyleAttr,
     57             int defStyleRes) {
     58         super(context, attrs, defStyleAttr, defStyleRes);
     59         setOrientation(LinearLayout.VERTICAL);
     60 
     61         final LayoutInflater inflater = (LayoutInflater) getContext().getSystemService(
     62                 Context.LAYOUT_INFLATER_SERVICE);
     63         inflater.inflate(R.layout.empty_content_view, this);
     64         // Don't let touches fall through the empty view.
     65         setClickable(true);
     66         mImageView = (ImageView) findViewById(R.id.emptyListViewImage);
     67         mDescriptionView = (TextView) findViewById(R.id.emptyListViewMessage);
     68         mActionView = (TextView) findViewById(R.id.emptyListViewAction);
     69         mActionView.setOnClickListener(this);
     70     }
     71 
     72     public void setDescription(int resourceId) {
     73         if (resourceId == NO_LABEL) {
     74             mDescriptionView.setText(null);
     75             mDescriptionView.setVisibility(View.GONE);
     76         } else {
     77             mDescriptionView.setText(resourceId);
     78             mDescriptionView.setVisibility(View.VISIBLE);
     79         }
     80     }
     81 
     82     public void setImage(int resourceId) {
     83         if (resourceId == NO_LABEL) {
     84             mImageView.setImageDrawable(null);
     85             mImageView.setVisibility(View.GONE);
     86         } else {
     87             mImageView.setImageResource(resourceId);
     88             mImageView.setVisibility(View.VISIBLE);
     89         }
     90     }
     91 
     92     public void setActionLabel(int resourceId) {
     93         if (resourceId == NO_LABEL) {
     94             mActionView.setText(null);
     95             mActionView.setVisibility(View.GONE);
     96         } else {
     97             mActionView.setText(resourceId);
     98             mActionView.setVisibility(View.VISIBLE);
     99         }
    100     }
    101 
    102     public boolean isShowingContent() {
    103         return mImageView.getVisibility() == View.VISIBLE
    104                 || mDescriptionView.getVisibility() == View.VISIBLE
    105                 || mActionView.getVisibility() == View.VISIBLE;
    106     }
    107 
    108     public void setActionClickedListener(OnEmptyViewActionButtonClickedListener listener) {
    109         mOnActionButtonClickedListener = listener;
    110     }
    111 
    112     @Override
    113     public void onClick(View v) {
    114         if (mOnActionButtonClickedListener != null) {
    115             mOnActionButtonClickedListener.onEmptyViewActionButtonClicked();
    116         }
    117     }
    118 }
    119