Widgets/src/com/koushikdutta/widgets/ListContentFragmentInternal.java

   1 package com.koushikdutta.widgets;
   2
   3 import junit.framework.Assert;
   4 import android.annotation.SuppressLint;
   5 import android.app.Activity;
   6 import android.content.res.Configuration;
   7 import android.os.Bundle;
   8 import android.support.v4.app.Fragment;
   9 import android.support.v4.app.FragmentActivity;
  10 import android.support.v4.app.FragmentManager;
  11 import android.support.v4.app.FragmentManager.OnBackStackChangedListener;
  12 import android.support.v4.app.FragmentTransaction;
  13 import android.view.View;
  14 import android.view.ViewGroup;
  15 import android.widget.ListView;
  16
  17 public class ListContentFragmentInternal extends BetterListFragmentInternal {
  18     ViewGroup mContent;
  19     ViewGroup mContainer;
  20
  21     public ViewGroup getContainer() {
  22         return mContainer;
  23     }
  24
  25     public ListContentFragmentInternal(FragmentInterfaceWrapper fragment) {
  26         super(fragment);
  27     }
  28
  29     @Override
  30     protected int getListHeaderResource() {
  31         return R.layout.list_content_header;
  32     }
  33
  34     @Override
  35     protected void setPadding() {
  36         super.setPadding();
  37         float hor = getResources().getDimension(R.dimen.list_horizontal_margin);
  38         float ver = getResources().getDimension(R.dimen.list_vertical_margin);
  39         getListView().setPadding(0, 0, 0, 0);
  40         ver = 0;
  41         mContainer.setPadding((int)hor, (int)ver, (int)hor, (int)ver);
  42     }
  43
  44     FragmentInterfaceWrapper mCurrentContent;
  45
  46     @Override
  47     protected void onCreate(Bundle savedInstanceState, View ret) {
  48         mContent = (ViewGroup)ret.findViewById(R.id.content);
  49         mContainer = (ViewGroup)ret.findViewById(R.id.list_content_container);
  50
  51         getListView().setChoiceMode(ListView.CHOICE_MODE_SINGLE);
  52
  53         super.onCreate(savedInstanceState, ret);
  54     }
  55
  56     public boolean isPaged() {
  57         return mContent == null;
  58     }
  59
  60     int getContentId() {
  61         if (isPaged())
  62             return R.id.list_content_container;
  63         return R.id.content;
  64     }
  65
  66     static Object backstackListener;
  67     static Object pendingFragment;
  68
  69
  70     @SuppressLint("InlinedApi")
  71     private void onDetachNative() {
  72         Activity fa = getActivity();
  73         fa.getFragmentManager().popBackStack("content", android.app.FragmentManager.POP_BACK_STACK_INCLUSIVE);
  74     }
  75
  76     @Override
  77     public void onDetach() {
  78         super.onDetach();
  79
  80         if (getActivity() == null || getActivity().isFinishing() || getActivity().isChangingConfigurations())
  81             return;
  82
  83         if (!isPaged())
  84             return;
  85
  86         if (getActivity() instanceof FragmentActivity) {
  87             FragmentActivity fa = (FragmentActivity)getActivity();
  88             fa.getSupportFragmentManager().popBackStack("content", FragmentManager.POP_BACK_STACK_INCLUSIVE);
  89         }
  90         else {
  91             onDetachNative();
  92         }
  93     }
  94
  95     Object listener;
  96     @SuppressLint("InlinedApi")
  97     void setContentNative(final String breadcrumb) {
  98         android.app.Fragment f = (android.app.Fragment)mCurrentContent;
  99         Activity fa = getActivity();
 100         final android.app.FragmentManager fm = fa.getFragmentManager();
 101
 102         android.app.FragmentTransaction ft = fm.beginTransaction();
 103         if (isPaged()) {
 104             if (listener == null) {
 105                 fm.addOnBackStackChangedListener(new android.app.FragmentManager.OnBackStackChangedListener() {
 106                     {
 107                         listener = this;
 108                     }
 109                     @Override
 110                     public void onBackStackChanged() {
 111                         android.app.Fragment f = (android.app.Fragment)getFragment();
 112                         if (f.isDetached() || f.isRemoving()) {
 113                             fm.removeOnBackStackChangedListener(this);
 114                             return;
 115                         }
 116                         View v = getFragment().getView();
 117                         if (v == null)
 118                             return;
 119                         final View l = v.findViewById(R.id.list_fragment);
 120                         if (l == null)
 121                             return;
 122                         if (fm.getBackStackEntryCount() > 0 && "content".equals(fm.getBackStackEntryAt(fm.getBackStackEntryCount() - 1).getName())) {
 123                             l.setVisibility(View.GONE);
 124                         }
 125                         else {
 126                             l.setVisibility(View.VISIBLE);
 127                         }
 128                     }
 129                 });
 130             }
 131
 132             fm.popBackStack("content", android.app.FragmentManager.POP_BACK_STACK_INCLUSIVE);
 133             ft.setBreadCrumbTitle(breadcrumb);
 134             ft.setBreadCrumbShortTitle(breadcrumb);
 135             ft.addToBackStack("content");
 136         }
 137         ft.replace(getContentId(), f, "content");
 138         ft.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_FADE);
 139         ft.commit();
 140     }
 141
 142     public void setContent(FragmentInterfaceWrapper content, boolean clearChoices, String breadcrumb) {
 143         mCurrentContent = content;
 144         if (getActivity() instanceof FragmentActivity) {
 145             Fragment f = (Fragment)mCurrentContent;
 146             FragmentActivity fa = (FragmentActivity)getActivity();
 147             final FragmentManager fm = fa.getSupportFragmentManager();
 148             FragmentTransaction ft = fa.getSupportFragmentManager().beginTransaction();
 149             if (isPaged()) {
 150                 final int curSize = fm.getBackStackEntryCount();
 151                 View v = getFragment().getView();
 152                 Assert.assertNotNull(v);
 153                 final View l = v.findViewById(R.id.list_fragment);
 154                 Assert.assertNotNull(l);
 155                 l.setVisibility(View.GONE);
 156                 fm.addOnBackStackChangedListener(new OnBackStackChangedListener() {
 157                     @Override
 158                     public void onBackStackChanged() {
 159                         if (curSize != fm.getBackStackEntryCount())
 160                             return;
 161                         l.setVisibility(View.VISIBLE);
 162                         fm.removeOnBackStackChangedListener(this);
 163                     }
 164                 });
 165                 ft.addToBackStack("content");
 166             }
 167             ft.replace(getContentId(), f, "content");
 168             ft.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_FADE);
 169             ft.commit();
 170         }
 171         else {
 172             setContentNative(breadcrumb);
 173         }
 174
 175         if (clearChoices)
 176             getListView().clearChoices();
 177     }
 178
 179     @Override
 180     protected int getListItemResource() {
 181         return R.layout.list_item_selectable;
 182     }
 183
 184     @Override
 185     protected int getListFragmentResource() {
 186         return R.layout.list_content;
 187     }
 188
 189     @Override
 190     public void onConfigurationChanged(Configuration newConfig) {
 191         super.onConfigurationChanged(newConfig);
 192         setPadding();
 193     }
 194 }