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      1 /*
      2  * Copyright (C) 2013 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.ClipData;
     21 import android.content.ClipboardManager;
     22 import android.content.Context;
     23 import android.content.Intent;
     24 import android.net.Uri;
     25 import android.text.TextUtils;
     26 import android.view.ContextMenu;
     27 import android.view.MenuInflater;
     28 import android.view.MenuItem;
     29 import android.view.View;
     30 import android.view.ContextMenu.ContextMenuInfo;
     31 import android.view.View.OnCreateContextMenuListener;
     32 import android.webkit.WebView;
     33 
     34 import com.android.mail.R;
     35 
     36 /**
     37  * <p>
     38  * Handles display and behavior for long clicking on expanded messages' headers.
     39  * Requires a context to use for inflation and clipboard copying.
     40  * </p>
     41  * <br>
     42  * Dependencies:
     43  * <ul>
     44  * <li>res/menu/email_copy_context_menu.xml</li>
     45  * </ul>
     46  */
     47 public class EmailCopyContextMenu implements OnCreateContextMenuListener{
     48 
     49     // IDs for displaying in the menu
     50     private static final int SEND_EMAIL_ITEM = R.id.mail_context_menu_id;
     51     private static final int COPY_CONTACT_ITEM = R.id.copy_mail_context_menu_id;
     52 
     53     // Reference to context for layout inflation & copying the email
     54     private final Context mContext;
     55     private CharSequence mAddress;
     56 
     57     public EmailCopyContextMenu(Context context) {
     58         mContext = context;
     59     }
     60 
     61     /**
     62      * Copy class for handling click event on the "Copy" button and storing
     63      * copied text.
     64      */
     65     private class Copy implements MenuItem.OnMenuItemClickListener {
     66         private final CharSequence mText;
     67 
     68         public Copy(CharSequence text) {
     69             mText = text;
     70         }
     71 
     72         @Override
     73         public boolean onMenuItemClick(MenuItem item) {
     74             copy(mText);
     75             //Handled & consumed event
     76             return true;
     77         }
     78     }
     79 
     80     /**
     81      * Copy the input text sequence to the system clipboard.
     82      * @param text CharSequence to be copied.
     83      */
     84     private void copy(CharSequence text) {
     85         ClipboardManager clipboard =
     86                 (ClipboardManager) mContext.getSystemService(Context.CLIPBOARD_SERVICE);
     87         clipboard.setPrimaryClip(ClipData.newPlainText(null, text));
     88     }
     89 
     90     public void setAddress(CharSequence address) {
     91         this.mAddress = address;
     92     }
     93 
     94     /**
     95      * Creates context menu via MenuInflater and populates with items defined
     96      * in res/menu/email_copy_context_menu.xml
     97      */
     98     @Override
     99     public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo info) {
    100         if(!TextUtils.isEmpty(mAddress)) {
    101             MenuInflater inflater = new MenuInflater(mContext);
    102             inflater.inflate(getMenuResourceId(), menu);
    103 
    104             // Create menu and bind listener/intent
    105             menu.setHeaderTitle(mAddress);
    106             menu.findItem(SEND_EMAIL_ITEM).setIntent(new Intent(Intent.ACTION_VIEW,
    107                     Uri.parse(WebView.SCHEME_MAILTO + mAddress)));
    108             menu.findItem(COPY_CONTACT_ITEM).setOnMenuItemClickListener(
    109                     new Copy(mAddress));
    110         }
    111     }
    112 
    113     // Location of Context Menu layout
    114     private static int getMenuResourceId() {
    115         return R.menu.email_copy_context_menu;
    116     }
    117 }
    118