Home | History | Annotate | Download | only in ui 
      1 /*******************************************************************************
      2  *      Copyright (C) 2014 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.ui;
     19 
     20 import android.animation.Animator;
     21 import android.animation.AnimatorListenerAdapter;
     22 import android.content.Context;
     23 import android.support.v7.widget.Toolbar;
     24 import android.util.AttributeSet;
     25 import android.view.View;
     26 import android.view.ViewGroup;
     27 import android.widget.TextView;
     28 
     29 import com.android.mail.R;
     30 import com.android.mail.analytics.Analytics;
     31 import com.android.mail.providers.Account;
     32 import com.android.mail.providers.AccountObserver;
     33 import com.android.mail.utils.ViewUtils;
     34 
     35 /**
     36  * Custom toolbar that supports a custom view so we can display our search icon wherever we want.
     37  */
     38 public class CustomViewToolbar extends Toolbar implements ViewMode.ModeChangeListener,
     39         TwoPaneLayout.ConversationListLayoutListener {
     40     private static final long FADE_ANIMATION_DURATION_MS = 150;
     41 
     42     private ControllableActivity mActivity;
     43     private ActivityController mController;
     44     private ViewMode mViewMode;
     45     private AccountObserver mAccountObserver = new AccountObserver() {
     46         @Override
     47         public void onChanged(Account newAccount) {
     48             setSearchButtonVisibility(newAccount);
     49         }
     50     };
     51 
     52     protected View mCustomView;
     53     protected TextView mActionBarTitle;
     54     protected View mSearchButton;
     55 
     56     public CustomViewToolbar(Context context) {
     57         super(context);
     58     }
     59 
     60     public CustomViewToolbar(Context context, AttributeSet attrs) {
     61         super(context, attrs);
     62     }
     63 
     64     public void setController(ControllableActivity activity, ActivityController controller,
     65             ViewMode viewMode) {
     66         mActivity = activity;
     67         mController = controller;
     68         mViewMode = viewMode;
     69         mViewMode.addListener(this);
     70 
     71         mAccountObserver.initialize(mActivity.getAccountController());
     72     }
     73 
     74     @Override
     75     protected void onFinishInflate() {
     76         super.onFinishInflate();
     77 
     78         mCustomView = findViewById(R.id.actionbar_custom_view);
     79         mActionBarTitle = (TextView) findViewById(R.id.actionbar_title);
     80         mSearchButton = findViewById(R.id.actionbar_search_button);
     81 
     82         mSearchButton.setOnClickListener(new View.OnClickListener() {
     83             @Override
     84             public void onClick(View view) {
     85                 // Since search is no longer a menu item, log the search "menu" event here.
     86                 Analytics.getInstance().sendEvent(Analytics.EVENT_CATEGORY_MENU_ITEM,
     87                         "search", "action_bar/" + mViewMode.getModeString(), 0);
     88                 mController.startSearch();
     89             }
     90         });
     91     }
     92 
     93     protected void onDestroy() {
     94         mAccountObserver.unregisterAndDestroy();
     95     }
     96 
     97     /**
     98      * Sets the search button visibility based on the current account.
     99      */
    100     private void setSearchButtonVisibility() {
    101         setSearchButtonVisibility(mActivity.getAccountController().getAccount());
    102     }
    103 
    104     private void setSearchButtonVisibility(Account account) {
    105         if (mSearchButton != null) {
    106             final boolean visible = mController.shouldShowSearchMenuItem() &&
    107                     account.supportsSearch();
    108             mSearchButton.setVisibility(visible ? VISIBLE : INVISIBLE);
    109         }
    110     }
    111 
    112     @Override
    113     public void onViewModeChanged(int newMode) {
    114         setSearchButtonVisibility();
    115     }
    116 
    117     @Override
    118     public void onConversationListLayout(int xEnd, boolean drawerOpen) {
    119         if (drawerOpen) {
    120             mSearchButton.animate()
    121                     .alpha(0f)
    122                     .setDuration(FADE_ANIMATION_DURATION_MS)
    123                     .setListener(new AnimatorListenerAdapter() {
    124                         @Override
    125                         public void onAnimationEnd(Animator animation) {
    126                             mSearchButton.setVisibility(INVISIBLE);
    127                         }
    128                     });
    129         } else {
    130             setSearchButtonVisibility();
    131             // setListener(null) is necessary because the animator carries the previously set
    132             // listener over, aka the listener for fade out.
    133             if (mSearchButton.isShown()) {
    134                 mSearchButton.animate()
    135                         .alpha(1f)
    136                         .setDuration(FADE_ANIMATION_DURATION_MS)
    137                         .setListener(null);
    138             }
    139 
    140             final int[] coords = new int[2];
    141             mCustomView.getLocationInWindow(coords);
    142             final int newWidth;
    143             if (ViewUtils.isViewRtl(this)) {
    144                 newWidth = coords[0] + mCustomView.getWidth() - xEnd;
    145             } else {
    146                 newWidth = xEnd - coords[0];
    147             }
    148 
    149             // Only set the width if it's different than before so we avoid draw on layout pass.
    150             if (mCustomView.getWidth() != newWidth) {
    151                 final ViewGroup.LayoutParams params = mCustomView.getLayoutParams();
    152                 params.width = newWidth;
    153                 mCustomView.setLayoutParams(params);
    154             }
    155         }
    156     }
    157 
    158     // OVERRIDE DEFAULT TOOLBAR TITLE FUNCTIONS SO THEY ARE RENDERED CORRECTLY.
    159     // TODO: subtitles? we currently don't have any of those, but we will need to support them.
    160 
    161     @Override
    162     public void setTitle(int resId) {
    163         setTitle(getResources().getString(resId));
    164     }
    165 
    166     @Override
    167     public void setTitle(CharSequence title) {
    168         mActionBarTitle.setText(title);
    169     }
    170 
    171     @Override
    172     public void setTitleTextAppearance(Context context, int resId) {
    173         mActionBarTitle.setTextAppearance(context, resId);
    174     }
    175 
    176     @Override
    177     public void setTitleTextColor(int color) {
    178         mActionBarTitle.setTextColor(color);
    179     }
    180 }
    181