content: /*
   * Copyright (C) 2016 Bilibili
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *         http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package com.bilibili.magicasakura.widgets;
  
  import android.content.Context;
  import android.graphics.drawable.Drawable;
  import android.os.Bundle;
  import android.os.Handler;
  import android.os.Message;
  import android.support.v7.app.AlertDialog;
  import android.text.Spannable;
  import android.text.SpannableString;
  import android.text.style.StyleSpan;
  import android.view.LayoutInflater;
  import android.view.View;
  import android.widget.ProgressBar;
  import android.widget.TextView;
  
  import com.wm.remusic.R;
  
  import java.text.NumberFormat;
  
  /**
   * @author xyczero617@gmail.com
   * @time 16/2/4
   */
  public class TintProgressDialog extends AlertDialog implements Handler.Callback {
  
  
      /**
       * Creates a ProgressDialog with a circular, spinning progress
       * bar. This is the default.
       */
      public static final int STYLE_SPINNER = 0;
  
      /**
       * Creates a ProgressDialog with a horizontal progress bar.
       */
      public static final int STYLE_HORIZONTAL = 1;
  
      private ProgressBar mProgress;
      private TextView mMessageView;
  
      private int mProgressStyle = STYLE_SPINNER;
      private TextView mProgressNumber;
      private String mProgressNumberFormat;
      private TextView mProgressPercent;
      private NumberFormat mProgressPercentFormat;
  
      private int mMax;
      private int mProgressVal;
      private int mSecondaryProgressVal;
      private int mIncrementBy;
      private int mIncrementSecondaryBy;
      private Drawable mProgressDrawable;
      private Drawable mIndeterminateDrawable;
      private CharSequence mMessage;
      private boolean mIndeterminate;
  
      private boolean mHasStarted;
      private Handler mViewUpdateHandler;
  
      public TintProgressDialog(Context context) {
          this(context, 0);
          initFormats();
      }
  
      public TintProgressDialog(Context context, int theme) {
          super(context, theme);
          initFormats();
      }
  
      protected TintProgressDialog(Context context, boolean cancelable, OnCancelListener cancelListener) {
          super(context, cancelable, cancelListener);
          initFormats();
      }
  
      private void initFormats() {
          mProgressNumberFormat = "%1d/%2d";
          mProgressPercentFormat = NumberFormat.getPercentInstance();
          mProgressPercentFormat.setMaximumFractionDigits(0);
      }
  
      public static TintProgressDialog show(Context context, CharSequence title,
                                            CharSequence message) {
          return show(context, title, message, false);
      }
  
      public static TintProgressDialog show(Context context, CharSequence title,
                                            CharSequence message, boolean indeterminate) {
          return show(context, title, message, indeterminate, false, null);
      }
  
      public static TintProgressDialog show(Context context, CharSequence title,
                                            CharSequence message, boolean indeterminate, boolean cancelable) {
          return show(context, title, message, indeterminate, cancelable, null);
      }
  
      public static TintProgressDialog show(Context context, CharSequence title,
                                            CharSequence message, boolean indeterminate,
                                            boolean cancelable, OnCancelListener cancelListener) {
          TintProgressDialog dialog = new TintProgressDialog(context);
          dialog.setTitle(title);
          dialog.setMessage(message);
          dialog.setIndeterminate(indeterminate);
          dialog.setCancelable(cancelable);
          dialog.setOnCancelListener(cancelListener);
          dialog.show();
          return dialog;
      }
  
      @Override
      protected void onCreate(Bundle savedInstanceState) {
          LayoutInflater inflater = LayoutInflater.from(getContext());
          if (mProgressStyle == STYLE_HORIZONTAL) {
  
              /* Use a separate handler to update the text views as they
               * must be updated on the same thread that created them.
               */
              mViewUpdateHandler = new Handler(this);
  
              View view = inflater.inflate(R.layout.dialog_alert_progress, null);
              mProgress = (ProgressBar) view.findViewById(android.R.id.progress);
              mProgressNumber = (TextView) view.findViewById(R.id.progress_number);
              mProgressPercent = (TextView) view.findViewById(R.id.progress_percent);
              setView(view);
          } else {
              View view = inflater.inflate(R.layout.dialog_progress, null);
              mProgress = (ProgressBar) view.findViewById(android.R.id.progress);
              mMessageView = (TextView) view.findViewById(R.id.message);
              setView(view);
          }
  
          if (mMax > 0) {
              setMax(mMax);
          }
          if (mProgressVal > 0) {
              setProgress(mProgressVal);
          }
          if (mSecondaryProgressVal > 0) {
              setSecondaryProgress(mSecondaryProgressVal);
          }
          if (mIncrementBy > 0) {
              incrementProgressBy(mIncrementBy);
          }
          if (mIncrementSecondaryBy > 0) {
              incrementSecondaryProgressBy(mIncrementSecondaryBy);
          }
          if (mProgressDrawable != null) {
              setProgressDrawable(mProgressDrawable);
          }
          if (mIndeterminateDrawable != null) {
              setIndeterminateDrawable(mIndeterminateDrawable);
          }
          if (mMessage != null) {
              setMessage(mMessage);
          }
          setIndeterminate(mIndeterminate);
          onProgressChanged();
          super.onCreate(savedInstanceState);
      }
  
      @Override
      public boolean handleMessage(Message msg) {
          /* Update the number and percent */
          int progress = mProgress.getProgress();
          int max = mProgress.getMax();
          if (mProgressNumberFormat != null) {
              String format = mProgressNumberFormat;
              mProgressNumber.setText(String.format(format, progress, max));
          } else {
              mProgressNumber.setText("");
          }
          if (mProgressPercentFormat != null) {
              double percent = (double) progress / (double) max;
              SpannableString tmp = new SpannableString(mProgressPercentFormat.format(percent));
              tmp.setSpan(new StyleSpan(android.graphics.Typeface.BOLD),
                      0, tmp.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
              mProgressPercent.setText(tmp);
          } else {
              mProgressPercent.setText("");
          }
          return true;
      }
  
      @Override
      public void onStart() {
          super.onStart();
          mHasStarted = true;
      }
  
      @Override
      protected void onStop() {
          super.onStop();
          mHasStarted = false;
      }
  
      public void setProgress(int value) {
          if (mHasStarted) {
              mProgress.setProgress(value);
              onProgressChanged();
          } else {
              mProgressVal = value;
          }
      }
  
      public void setSecondaryProgress(int secondaryProgress) {
          if (mProgress != null) {
              mProgress.setSecondaryProgress(secondaryProgress);
              onProgressChanged();
          } else {
              mSecondaryProgressVal = secondaryProgress;
          }
      }
  
      public int getProgress() {
          if (mProgress != null) {
              return mProgress.getProgress();
          }
          return mProgressVal;
      }
  
      public int getSecondaryProgress() {
          if (mProgress != null) {
              return mProgress.getSecondaryProgress();
          }
          return mSecondaryProgressVal;
      }
  
      public int getMax() {
          if (mProgress != null) {
              return mProgress.getMax();
          }
          return mMax;
      }
  
      public void setMax(int max) {
          if (mProgress != null) {
              mProgress.setMax(max);
              onProgressChanged();
          } else {
              mMax = max;
          }
      }
  
      public void incrementProgressBy(int diff) {
          if (mProgress != null) {
              mProgress.incrementProgressBy(diff);
              onProgressChanged();
          } else {
              mIncrementBy += diff;
          }
      }
  
      public void incrementSecondaryProgressBy(int diff) {
          if (mProgress != null) {
              mProgress.incrementSecondaryProgressBy(diff);
              onProgressChanged();
          } else {
              mIncrementSecondaryBy += diff;
          }
      }
  
      public void setProgressDrawable(Drawable d) {
          if (mProgress != null) {
              mProgress.setProgressDrawable(d);
          } else {
              mProgressDrawable = d;
          }
      }
  
      public void setIndeterminateDrawable(Drawable d) {
          if (mProgress != null) {
              mProgress.setIndeterminateDrawable(d);
          } else {
              mIndeterminateDrawable = d;
          }
      }
  
      public void setIndeterminate(boolean indeterminate) {
          if (mProgress != null) {
              mProgress.setIndeterminate(indeterminate);
          } else {
              mIndeterminate = indeterminate;
          }
      }
  
      public boolean isIndeterminate() {
          if (mProgress != null) {
              return mProgress.isIndeterminate();
          }
          return mIndeterminate;
      }
  
      @Override
      public void setMessage(CharSequence message) {
          if (mProgress != null) {
              if (mProgressStyle == STYLE_HORIZONTAL) {
                  super.setMessage(message);
              } else {
                  mMessageView.setText(message);
              }
          } else {
              mMessage = message;
          }
      }
  
      public void setProgressStyle(int style) {
          mProgressStyle = style;
      }
  
      /**
       * Change the format of the small text showing current and maximum units
       * of progress.  The default is "%1d/%2d".
       * Should not be called during the number is progressing.
       *
       * @param format A string passed to {@link String#format String.format()};
       *               use "%1d" for the current number and "%2d" for the maximum.  If null,
       *               nothing will be shown.
       */
      public void setProgressNumberFormat(String format) {
          mProgressNumberFormat = format;
          onProgressChanged();
      }
  
      /**
       * Change the format of the small text showing the percentage of progress.
       * The default is
       * {@link NumberFormat#getPercentInstance() NumberFormat.getPercentageInstnace().}
       * Should not be called during the number is progressing.
       *
       * @param format An instance of a {@link NumberFormat} to generate the
       *               percentage text.  If null, nothing will be shown.
       */
      public void setProgressPercentFormat(NumberFormat format) {
          mProgressPercentFormat = format;
          onProgressChanged();
      }
  
      private void onProgressChanged() {
          if (mProgressStyle == STYLE_HORIZONTAL) {
              if (mViewUpdateHandler != null && !mViewUpdateHandler.hasMessages(0)) {
                  mViewUpdateHandler.sendEmptyMessage(0);
              }
          }
      }
  }
  