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      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 package android.databinding.adapters;
     17 
     18 import android.databinding.BindingAdapter;
     19 import android.widget.SeekBar;
     20 import android.widget.SeekBar.OnSeekBarChangeListener;
     21 
     22 public class SeekBarBindingAdapter {
     23     @BindingAdapter("android:onProgressChanged")
     24     public static void setListener(SeekBar view, OnProgressChanged listener) {
     25         setListener(view, null, null, listener);
     26     }
     27 
     28     @BindingAdapter("android:onStartTrackingTouch")
     29     public static void setListener(SeekBar view, OnStartTrackingTouch listener) {
     30         setListener(view, listener, null, null);
     31     }
     32 
     33     @BindingAdapter("android:onStopTrackingTouch")
     34     public static void setListener(SeekBar view, OnStopTrackingTouch listener) {
     35         setListener(view, null, listener, null);
     36     }
     37 
     38     @BindingAdapter({"android:onStartTrackingTouch", "android:onStopTrackingTouch"})
     39     public static void setListener(SeekBar view, final OnStartTrackingTouch start,
     40             final OnStopTrackingTouch stop) {
     41         setListener(view, start, stop, null);
     42     }
     43 
     44     @BindingAdapter({"android:onStartTrackingTouch", "android:onProgressChanged"})
     45     public static void setListener(SeekBar view, final OnStartTrackingTouch start,
     46             final OnProgressChanged progressChanged) {
     47         setListener(view, start, null, progressChanged);
     48     }
     49 
     50     @BindingAdapter({"android:onStopTrackingTouch", "android:onProgressChanged"})
     51     public static void setListener(SeekBar view, final OnStopTrackingTouch stop,
     52             final OnProgressChanged progressChanged) {
     53         setListener(view, null, stop, progressChanged);
     54     }
     55 
     56     @BindingAdapter({"android:onStartTrackingTouch", "android:onStopTrackingTouch", "android:onProgressChanged"})
     57     public static void setListener(SeekBar view, final OnStartTrackingTouch start,
     58             final OnStopTrackingTouch stop, final OnProgressChanged progressChanged) {
     59         if (start == null && stop == null && progressChanged == null) {
     60             view.setOnSeekBarChangeListener(null);
     61         } else {
     62             view.setOnSeekBarChangeListener(new OnSeekBarChangeListener() {
     63                 @Override
     64                 public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
     65                     if (progressChanged != null) {
     66                         progressChanged.onProgressChanged(seekBar, progress, fromUser);
     67                     }
     68                 }
     69 
     70                 @Override
     71                 public void onStartTrackingTouch(SeekBar seekBar) {
     72                     if (start != null) {
     73                         start.onStartTrackingTouch(seekBar);
     74                     }
     75                 }
     76 
     77                 @Override
     78                 public void onStopTrackingTouch(SeekBar seekBar) {
     79                     if (stop != null) {
     80                         stop.onStopTrackingTouch(seekBar);
     81                     }
     82                 }
     83             });
     84         }
     85     }
     86 
     87     public interface OnStartTrackingTouch {
     88         void onStartTrackingTouch(SeekBar seekBar);
     89     }
     90 
     91     public interface OnStopTrackingTouch {
     92         void onStopTrackingTouch(SeekBar seekBar);
     93     }
     94 
     95     public interface OnProgressChanged {
     96         void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser);
     97     }
     98 }
     99