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      1 /*
      2  * Copyright (C) 2013 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.mail.ui;
     18 
     19 import android.content.Context;
     20 
     21 import com.android.mail.R;
     22 import com.android.mail.analytics.Analytics;
     23 import com.android.mail.browse.ConversationCursor;
     24 import com.android.mail.preferences.MailPrefs;
     25 import com.android.mail.providers.Folder;
     26 
     27 /**
     28  * A tip to educate users about long press to enter CAB mode.  Appears on top of conversation list.
     29  */
     30 public class ConversationLongPressTipView extends ConversationTipView {
     31     private final MailPrefs mMailPrefs;
     32     private boolean mShow;
     33 
     34     public ConversationLongPressTipView(final Context context) {
     35         super(context);
     36 
     37         mMailPrefs = MailPrefs.get(context);
     38         setText(getResources().getString(R.string.long_press_to_select_tip));
     39     }
     40 
     41     @Override
     42     public void onUpdate(Folder folder, ConversationCursor cursor) {
     43         mShow = checkWhetherToShow();
     44     }
     45 
     46     @Override
     47     public boolean getShouldDisplayInList() {
     48         mShow = checkWhetherToShow();
     49         return mShow;
     50     }
     51 
     52     private boolean checkWhetherToShow() {
     53         // show if 1) sender images are disabled 2) there are items
     54         return !shouldShowSenderImage() && !mAdapter.isEmpty()
     55                 && !mMailPrefs.isLongPressToSelectTipAlreadyShown();
     56     }
     57 
     58     @Override
     59     public void onCabModeEntered() {
     60         if (mShow) {
     61             dismiss();
     62         }
     63     }
     64 
     65     @Override
     66     public void dismiss() {
     67         if (mShow) {
     68             mMailPrefs.setLongPressToSelectTipAlreadyShown();
     69             mShow = false;
     70             Analytics.getInstance().sendEvent("list_swipe", "long_press_tip", null, 0);
     71         }
     72         super.dismiss();
     73     }
     74 
     75     protected boolean shouldShowSenderImage() {
     76         return mMailPrefs.getShowSenderImages();
     77     }
     78 }