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      1 /*
      2  * Copyright (C) 2012 Google Inc.
      3  * Licensed to The Android Open Source Project.
      4  *
      5  * Licensed under the Apache License, Version 2.0 (the "License");
      6  * you may not use this file except in compliance with the License.
      7  * You may obtain a copy of the License at
      8  *
      9  *      http://www.apache.org/licenses/LICENSE-2.0
     10  *
     11  * Unless required by applicable law or agreed to in writing, software
     12  * distributed under the License is distributed on an "AS IS" BASIS,
     13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     14  * See the License for the specific language governing permissions and
     15  * limitations under the License.
     16  */
     17 
     18 package com.android.mail.browse;
     19 
     20 import android.content.Context;
     21 import android.content.res.Resources;
     22 import android.util.AttributeSet;
     23 import android.view.View;
     24 import android.widget.FrameLayout;
     25 import android.widget.TextView;
     26 
     27 import com.android.mail.R;
     28 import com.android.mail.browse.ConversationViewAdapter.SuperCollapsedBlockItem;
     29 import com.android.mail.utils.ViewUtils;
     30 
     31 import java.text.NumberFormat;
     32 
     33 /**
     34  * A header block that expands to a list of collapsed message headers. Will notify a listener on tap
     35  * so the listener can hide the block and reveal the corresponding collapsed message headers.
     36  *
     37  */
     38 public class SuperCollapsedBlock extends FrameLayout implements View.OnClickListener {
     39 
     40     public interface OnClickListener {
     41         /**
     42          * Handle a click on a super-collapsed block.
     43          *
     44          */
     45         void onSuperCollapsedClick(SuperCollapsedBlockItem item);
     46     }
     47 
     48     private SuperCollapsedBlockItem mSuperCollapsedItem;
     49     private OnClickListener mClick;
     50     private TextView mSuperCollapsedText;
     51     private View mSuperCollapsedProgress;
     52 
     53     private int mCount;
     54 
     55     public SuperCollapsedBlock(Context context) {
     56         this(context, null);
     57     }
     58 
     59     public SuperCollapsedBlock(Context context, AttributeSet attrs) {
     60         super(context, attrs);
     61         setActivated(false);
     62         setOnClickListener(this);
     63     }
     64 
     65     public void initialize(OnClickListener onClick) {
     66         mClick = onClick;
     67     }
     68 
     69     @Override
     70     protected void onFinishInflate() {
     71         super.onFinishInflate();
     72         mSuperCollapsedText = (TextView) findViewById(R.id.super_collapsed_text);
     73         mSuperCollapsedProgress = findViewById(R.id.super_collapsed_progress);
     74     }
     75 
     76     public void bind(SuperCollapsedBlockItem item) {
     77         mSuperCollapsedItem = item;
     78         mSuperCollapsedText.setVisibility(VISIBLE);
     79         mSuperCollapsedProgress.setVisibility(GONE);
     80         setCount(item.getEnd() - item.getStart() + 1);
     81     }
     82 
     83     public void setCount(int count) {
     84         mCount = count;
     85         final String strCount = NumberFormat.getIntegerInstance().format(mCount);
     86         mSuperCollapsedText.setText(strCount);
     87         final Resources res = getResources();
     88         final int colorId = mSuperCollapsedItem.hasDraft() ?
     89                 R.color.text_color_draft_red : R.color.conversation_view_text_color_light;
     90         mSuperCollapsedText.setTextColor(res.getColor(colorId));
     91         setContentDescription(
     92                 res.getQuantityString(R.plurals.show_messages_read, mCount, mCount));
     93     }
     94 
     95     @Override
     96     public void onClick(final View v) {
     97         mSuperCollapsedText.setVisibility(GONE);
     98         mSuperCollapsedProgress.setVisibility(VISIBLE);
     99         final String announcement = getResources().getQuantityString(
    100                 R.plurals.super_collapsed_block_accessibility_announcement, mCount, mCount);
    101         ViewUtils.announceForAccessibility(this, announcement);
    102 
    103         if (mClick != null) {
    104             getHandler().post(new Runnable() {
    105                 @Override
    106                 public void run() {
    107                     mClick.onSuperCollapsedClick(mSuperCollapsedItem);
    108                 }
    109             });
    110         }
    111     }
    112 }
    113