GroupDetailFragment.java revision 2f77c85543e6c497e63cd0e216b70e58c1d13ec3 
1/*
2 * Copyright (C) 2011 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
17package com.android.contacts.group;
18
19import com.android.contacts.ContactPhotoManager;
20import com.android.contacts.GroupMemberLoader;
21import com.android.contacts.GroupMetaDataLoader;
22import com.android.contacts.R;
23import com.android.contacts.interactions.GroupDeletionDialogFragment;
24import com.android.contacts.list.ContactTileAdapter;
25import com.android.contacts.list.ContactTileAdapter.DisplayType;
26import com.android.contacts.list.ContactTileView;
27import com.android.contacts.model.AccountType;
28import com.android.contacts.model.AccountTypeManager;
29
30import android.app.Activity;
31import android.app.Fragment;
32import android.app.LoaderManager;
33import android.app.LoaderManager.LoaderCallbacks;
34import android.content.ContentUris;
35import android.content.Context;
36import android.content.CursorLoader;
37import android.content.Intent;
38import android.content.Loader;
39import android.content.res.Resources;
40import android.database.Cursor;
41import android.graphics.Rect;
42import android.net.Uri;
43import android.os.Bundle;
44import android.provider.ContactsContract.Groups;
45import android.text.TextUtils;
46import android.util.Log;
47import android.view.LayoutInflater;
48import android.view.Menu;
49import android.view.MenuInflater;
50import android.view.MenuItem;
51import android.view.View;
52import android.view.View.OnClickListener;
53import android.view.ViewGroup;
54import android.widget.AbsListView;
55import android.widget.AbsListView.OnScrollListener;
56import android.widget.ListView;
57import android.widget.TextView;
58
59/**
60 * Displays the details of a group and shows a list of actions possible for the group.
61 */
62public class GroupDetailFragment extends Fragment implements OnScrollListener {
63
64    public static interface Listener {
65        /**
66         * The group title has been loaded
67         */
68        public void onGroupTitleUpdated(String title);
69
70        /**
71         * The number of group members has been determined
72         */
73        public void onGroupSizeUpdated(String size);
74
75        /**
76         * The account type and dataset have been determined.
77         */
78        public void onAccountTypeUpdated(String accountTypeString, String dataSet);
79
80        /**
81         * User decided to go to Edit-Mode
82         */
83        public void onEditRequested(Uri groupUri);
84
85        /**
86         * Contact is selected and should launch details page
87         */
88        public void onContactSelected(Uri contactUri);
89    }
90
91    private static final String TAG = "GroupDetailFragment";
92
93    private static final int LOADER_METADATA = 0;
94    private static final int LOADER_MEMBERS = 1;
95
96    private Context mContext;
97
98    private View mRootView;
99    private ViewGroup mGroupSourceViewContainer;
100    private View mGroupSourceView;
101    private TextView mGroupTitle;
102    private TextView mGroupSize;
103    private ListView mMemberListView;
104    private View mEmptyView;
105
106    private Listener mListener;
107
108    private ContactTileAdapter mAdapter;
109    private ContactPhotoManager mPhotoManager;
110    private AccountTypeManager mAccountTypeManager;
111
112    private Uri mGroupUri;
113    private long mGroupId;
114    private String mGroupName;
115    private String mAccountTypeString;
116    private String mDataSet;
117    private boolean mIsReadOnly;
118
119    private boolean mShowGroupActionInActionBar;
120    private boolean mOptionsMenuGroupDeletable;
121    private boolean mOptionsMenuGroupPresent;
122    private boolean mCloseActivityAfterDelete;
123
124    public GroupDetailFragment() {
125    }
126
127    @Override
128    public void onAttach(Activity activity) {
129        super.onAttach(activity);
130        mContext = activity;
131        mAccountTypeManager = AccountTypeManager.getInstance(mContext);
132
133        Resources res = getResources();
134        int columnCount = res.getInteger(R.integer.contact_tile_column_count);
135
136        mAdapter = new ContactTileAdapter(activity, mContactTileListener, columnCount,
137                DisplayType.GROUP_MEMBERS);
138
139        configurePhotoLoader();
140    }
141
142    @Override
143    public void onDetach() {
144        super.onDetach();
145        mContext = null;
146    }
147
148    @Override
149    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedState) {
150        setHasOptionsMenu(true);
151        mRootView = inflater.inflate(R.layout.group_detail_fragment, container, false);
152        mGroupTitle = (TextView) mRootView.findViewById(R.id.group_title);
153        mGroupSize = (TextView) mRootView.findViewById(R.id.group_size);
154        mGroupSourceViewContainer = (ViewGroup) mRootView.findViewById(
155                R.id.group_source_view_container);
156        mEmptyView = mRootView.findViewById(android.R.id.empty);
157        mMemberListView = (ListView) mRootView.findViewById(android.R.id.list);
158        mMemberListView.setAdapter(mAdapter);
159
160        return mRootView;
161    }
162
163    public void loadGroup(Uri groupUri) {
164        mGroupUri= groupUri;
165        startGroupMetadataLoader();
166    }
167
168    public void setQuickContact(boolean enableQuickContact) {
169        mAdapter.enableQuickContact(enableQuickContact);
170    }
171
172    private void configurePhotoLoader() {
173        if (mContext != null) {
174            if (mPhotoManager == null) {
175                mPhotoManager = ContactPhotoManager.getInstance(mContext);
176            }
177            if (mMemberListView != null) {
178                mMemberListView.setOnScrollListener(this);
179            }
180            if (mAdapter != null) {
181                mAdapter.setPhotoLoader(mPhotoManager);
182            }
183        }
184    }
185
186    public void setListener(Listener value) {
187        mListener = value;
188    }
189
190    public void setShowGroupSourceInActionBar(boolean show) {
191        mShowGroupActionInActionBar = show;
192    }
193
194    public Uri getGroupUri() {
195        return mGroupUri;
196    }
197
198    /**
199     * Start the loader to retrieve the metadata for this group.
200     */
201    private void startGroupMetadataLoader() {
202        getLoaderManager().restartLoader(LOADER_METADATA, null, mGroupMetadataLoaderListener);
203    }
204
205    /**
206     * Start the loader to retrieve the list of group members.
207     */
208    private void startGroupMembersLoader() {
209        getLoaderManager().restartLoader(LOADER_MEMBERS, null, mGroupMemberListLoaderListener);
210    }
211
212    private final ContactTileView.Listener mContactTileListener =
213            new ContactTileView.Listener() {
214
215        @Override
216        public void onContactSelected(Uri contactUri, Rect targetRect) {
217            mListener.onContactSelected(contactUri);
218        }
219
220        @Override
221        public void onCallNumberDirectly(String phoneNumber) {
222            // No need to call phone number directly from People app.
223            Log.w(TAG, "unexpected invocation of onCallNumberDirectly()");
224        }
225
226        @Override
227        public int getApproximateTileWidth() {
228            return getView().getWidth() / mAdapter.getColumnCount();
229        }
230    };
231
232    /**
233     * The listener for the group metadata loader.
234     */
235    private final LoaderManager.LoaderCallbacks<Cursor> mGroupMetadataLoaderListener =
236            new LoaderCallbacks<Cursor>() {
237
238        @Override
239        public CursorLoader onCreateLoader(int id, Bundle args) {
240            return new GroupMetaDataLoader(mContext, mGroupUri);
241        }
242
243        @Override
244        public void onLoadFinished(Loader<Cursor> loader, Cursor data) {
245            data.moveToPosition(-1);
246            if (data.moveToNext()) {
247                boolean deleted = data.getInt(GroupMetaDataLoader.DELETED) == 1;
248                if (!deleted) {
249                    bindGroupMetaData(data);
250
251                    // Retrieve the list of members
252                    startGroupMembersLoader();
253                    return;
254                }
255            }
256            updateSize(-1);
257            updateTitle(null);
258        }
259
260        @Override
261        public void onLoaderReset(Loader<Cursor> loader) {}
262    };
263
264    /**
265     * The listener for the group members list loader
266     */
267    private final LoaderManager.LoaderCallbacks<Cursor> mGroupMemberListLoaderListener =
268            new LoaderCallbacks<Cursor>() {
269
270        @Override
271        public CursorLoader onCreateLoader(int id, Bundle args) {
272            return GroupMemberLoader.constructLoaderForGroupDetailQuery(mContext, mGroupId);
273        }
274
275        @Override
276        public void onLoadFinished(Loader<Cursor> loader, Cursor data) {
277            updateSize(data.getCount());
278            mAdapter.setContactCursor(data);
279            mMemberListView.setEmptyView(mEmptyView);
280        }
281
282        @Override
283        public void onLoaderReset(Loader<Cursor> loader) {}
284    };
285
286    private void bindGroupMetaData(Cursor cursor) {
287        cursor.moveToPosition(-1);
288        if (cursor.moveToNext()) {
289            mAccountTypeString = cursor.getString(GroupMetaDataLoader.ACCOUNT_TYPE);
290            mDataSet = cursor.getString(GroupMetaDataLoader.DATA_SET);
291            mGroupId = cursor.getLong(GroupMetaDataLoader.GROUP_ID);
292            mGroupName = cursor.getString(GroupMetaDataLoader.TITLE);
293            mIsReadOnly = cursor.getInt(GroupMetaDataLoader.IS_READ_ONLY) == 1;
294            updateTitle(mGroupName);
295            // Must call invalidate so that the option menu will get updated
296            getActivity().invalidateOptionsMenu ();
297
298            final String accountTypeString = cursor.getString(GroupMetaDataLoader.ACCOUNT_TYPE);
299            final String dataSet = cursor.getString(GroupMetaDataLoader.DATA_SET);
300            updateAccountType(accountTypeString, dataSet);
301        }
302    }
303
304    private void updateTitle(String title) {
305        if (mGroupTitle != null) {
306            mGroupTitle.setText(title);
307        } else {
308            mListener.onGroupTitleUpdated(title);
309        }
310    }
311
312    /**
313     * Display the count of the number of group members.
314     * @param size of the group (can be -1 if no size could be determined)
315     */
316    private void updateSize(int size) {
317        String groupSizeString;
318        if (size == -1) {
319            groupSizeString = null;
320        } else {
321            String groupSizeTemplateString = getResources().getQuantityString(
322                    R.plurals.num_contacts_in_group, size);
323            AccountType accountType = mAccountTypeManager.getAccountType(mAccountTypeString,
324                    mDataSet);
325            groupSizeString = String.format(groupSizeTemplateString, size,
326                    accountType.getDisplayLabel(mContext));
327        }
328
329        if (mGroupSize != null) {
330            mGroupSize.setText(groupSizeString);
331        } else {
332            mListener.onGroupSizeUpdated(groupSizeString);
333        }
334    }
335
336    /**
337     * Once the account type, group source action, and group source URI have been determined
338     * (based on the result from the {@link Loader}), then we can display this to the user in 1 of
339     * 2 ways depending on screen size and orientation: either as a button in the action bar or as
340     * a button in a static header on the page.
341     */
342    private void updateAccountType(final String accountTypeString, final String dataSet) {
343
344        // If the group action should be shown in the action bar, then pass the data to the
345        // listener who will take care of setting up the view and click listener. There is nothing
346        // else to be done by this {@link Fragment}.
347        if (mShowGroupActionInActionBar) {
348            mListener.onAccountTypeUpdated(accountTypeString, dataSet);
349            return;
350        }
351
352        final AccountTypeManager manager = AccountTypeManager.getInstance(getActivity());
353        final AccountType accountType =
354                manager.getAccountType(accountTypeString, dataSet);
355
356        // Otherwise, if the {@link Fragment} needs to create and setup the button, then first
357        // verify that there is a valid action.
358        if (!TextUtils.isEmpty(accountType.getViewGroupActivity())) {
359            if (mGroupSourceView == null) {
360                mGroupSourceView = GroupDetailDisplayUtils.getNewGroupSourceView(mContext);
361                // Figure out how to add the view to the fragment.
362                // If there is a static header with a container for the group source view, insert
363                // the view there.
364                if (mGroupSourceViewContainer != null) {
365                    mGroupSourceViewContainer.addView(mGroupSourceView);
366                }
367            }
368
369            // Rebind the data since this action can change if the loader returns updated data
370            mGroupSourceView.setVisibility(View.VISIBLE);
371            GroupDetailDisplayUtils.bindGroupSourceView(mContext, mGroupSourceView,
372                    accountTypeString, dataSet);
373            mGroupSourceView.setOnClickListener(new OnClickListener() {
374                @Override
375                public void onClick(View v) {
376                    final Uri uri = ContentUris.withAppendedId(Groups.CONTENT_URI, mGroupId);
377                    final Intent intent = new Intent(Intent.ACTION_VIEW, uri);
378                    intent.setClassName(accountType.resPackageName,
379                            accountType.getViewGroupActivity());
380                    startActivity(intent);
381                }
382            });
383        } else if (mGroupSourceView != null) {
384            mGroupSourceView.setVisibility(View.GONE);
385        }
386    }
387
388    @Override
389    public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount,
390            int totalItemCount) {
391    }
392
393    @Override
394    public void onScrollStateChanged(AbsListView view, int scrollState) {
395        if (scrollState == OnScrollListener.SCROLL_STATE_FLING) {
396            mPhotoManager.pause();
397        } else {
398            mPhotoManager.resume();
399        }
400    }
401
402    @Override
403    public void onCreateOptionsMenu(Menu menu, final MenuInflater inflater) {
404        inflater.inflate(R.menu.view_group, menu);
405    }
406
407    public boolean isOptionsMenuChanged() {
408        return mOptionsMenuGroupDeletable != isGroupDeletable() &&
409                mOptionsMenuGroupPresent != isGroupPresent();
410    }
411
412    public boolean isGroupDeletable() {
413        return mGroupUri != null && !mIsReadOnly;
414    }
415
416    public boolean isGroupPresent() {
417        return mGroupUri != null;
418    }
419
420    @Override
421    public void onPrepareOptionsMenu(Menu menu) {
422        mOptionsMenuGroupDeletable = isGroupDeletable() && isVisible();
423        mOptionsMenuGroupPresent = isGroupPresent() && isVisible();
424
425        final MenuItem editMenu = menu.findItem(R.id.menu_edit_group);
426        editMenu.setVisible(mOptionsMenuGroupPresent);
427
428        final MenuItem deleteMenu = menu.findItem(R.id.menu_delete_group);
429        deleteMenu.setVisible(mOptionsMenuGroupDeletable);
430    }
431
432    @Override
433    public boolean onOptionsItemSelected(MenuItem item) {
434        switch (item.getItemId()) {
435            case R.id.menu_edit_group: {
436                if (mListener != null) mListener.onEditRequested(mGroupUri);
437                break;
438            }
439            case R.id.menu_delete_group: {
440                GroupDeletionDialogFragment.show(getFragmentManager(), mGroupId, mGroupName,
441                        mCloseActivityAfterDelete);
442                return true;
443            }
444        }
445        return false;
446    }
447
448    public void closeActivityAfterDelete(boolean closeActivity) {
449        mCloseActivityAfterDelete = closeActivity;
450    }
451
452    public long getGroupId() {
453        return mGroupId;
454    }
455}
456