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UI for Sharing Blogs
This commit refactors the code for sharing forums, so it can be used for sharing blogs as well. It does not yet include code for responding to blog invitations.
This commit is contained in:
Torsten Grote
@@ -0,0 +1,259 @@
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package org.briarproject.android.sharing;
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import android.content.Context;
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import android.os.Build;
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import android.os.Bundle;
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import android.support.v7.widget.LinearLayoutManager;
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import android.transition.Fade;
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import android.view.LayoutInflater;
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import android.view.Menu;
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import android.view.MenuInflater;
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import android.view.MenuItem;
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import android.view.View;
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import android.view.ViewGroup;
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import org.briarproject.R;
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import org.briarproject.android.ActivityComponent;
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import org.briarproject.android.contact.BaseContactListAdapter;
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import org.briarproject.android.contact.ContactListItem;
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import org.briarproject.android.fragment.BaseFragment;
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import org.briarproject.android.util.BriarRecyclerView;
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import org.briarproject.api.blogs.BlogSharingManager;
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import org.briarproject.api.contact.Contact;
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import org.briarproject.api.contact.ContactId;
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import org.briarproject.api.contact.ContactManager;
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import org.briarproject.api.db.DbException;
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import org.briarproject.api.forum.ForumSharingManager;
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import org.briarproject.api.identity.IdentityManager;
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import org.briarproject.api.identity.LocalAuthor;
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import org.briarproject.api.sync.GroupId;
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import java.util.ArrayList;
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import java.util.Collection;
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import java.util.Collections;
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import java.util.List;
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import java.util.logging.Logger;
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import javax.inject.Inject;
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import static java.util.logging.Level.INFO;
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import static java.util.logging.Level.WARNING;
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import static org.briarproject.android.sharing.ShareActivity.BLOG;
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import static org.briarproject.android.sharing.ShareActivity.CONTACTS;
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import static org.briarproject.android.sharing.ShareActivity.FORUM;
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import static org.briarproject.android.sharing.ShareActivity.SHAREABLE;
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import static org.briarproject.android.sharing.ShareActivity.getContactsFromIds;
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import static org.briarproject.api.sharing.SharingConstants.GROUP_ID;
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public class ContactSelectorFragment extends BaseFragment implements
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BaseContactListAdapter.OnItemClickListener {
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public final static String TAG = "ContactSelectorFragment";
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private static final Logger LOG =
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Logger.getLogger(ContactSelectorFragment.class.getName());
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private ShareActivity shareActivity;
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private Menu menu;
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private BriarRecyclerView list;
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private ContactSelectorAdapter adapter;
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private Collection<ContactId> selectedContacts;
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// Fields that are accessed from background threads must be volatile
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@Inject
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protected volatile ContactManager contactManager;
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@Inject
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protected volatile IdentityManager identityManager;
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@Inject
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protected volatile ForumSharingManager forumSharingManager;
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@Inject
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volatile BlogSharingManager blogSharingManager;
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private volatile GroupId groupId;
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private volatile int shareable;
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public static ContactSelectorFragment newInstance(int shareable,
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GroupId groupId) {
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Bundle args = new Bundle();
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args.putByteArray(GROUP_ID, groupId.getBytes());
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args.putInt(SHAREABLE, shareable);
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ContactSelectorFragment fragment = new ContactSelectorFragment();
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fragment.setArguments(args);
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return fragment;
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}
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@Override
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public void injectFragment(ActivityComponent component) {
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component.inject(this);
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}
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@Override
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public void onAttach(Context context) {
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super.onAttach(context);
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try {
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shareActivity = (ShareActivity) context;
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} catch (ClassCastException e) {
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throw new InstantiationError(
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"This fragment is only meant to be attached to the ShareForumActivity");
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}
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}
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@Override
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public void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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setHasOptionsMenu(true);
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groupId = new GroupId(getArguments().getByteArray(GROUP_ID));
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if (groupId == null) throw new IllegalStateException("No GroupId");
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shareable = getArguments().getInt(SHAREABLE);
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}
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@Override
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public View onCreateView(LayoutInflater inflater, ViewGroup container,
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Bundle savedInstanceState) {
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View contentView = inflater.inflate(
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R.layout.introduction_contact_chooser, container, false);
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if (Build.VERSION.SDK_INT >= 21) {
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setExitTransition(new Fade());
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}
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adapter = new ContactSelectorAdapter(getActivity(), this);
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list = (BriarRecyclerView) contentView.findViewById(R.id.contactList);
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list.setLayoutManager(new LinearLayoutManager(getActivity()));
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list.setAdapter(adapter);
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list.setEmptyText(getString(R.string.no_contacts));
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// restore selected contacts if available
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if (savedInstanceState != null) {
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ArrayList<Integer> intContacts =
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savedInstanceState.getIntegerArrayList(CONTACTS);
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selectedContacts = ShareActivity.getContactsFromIntegers(
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intContacts);
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}
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return contentView;
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}
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@Override
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public void onResume() {
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super.onResume();
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if (selectedContacts != null)
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loadContacts(Collections.unmodifiableCollection(selectedContacts));
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else loadContacts(null);
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}
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@Override
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public void onSaveInstanceState(Bundle outState) {
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if (adapter != null) {
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selectedContacts = adapter.getSelectedContactIds();
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outState.putIntegerArrayList(CONTACTS,
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getContactsFromIds(selectedContacts));
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}
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}
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@Override
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public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
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inflater.inflate(R.menu.forum_share_actions, menu);
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super.onCreateOptionsMenu(menu, inflater);
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this.menu = menu;
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// hide sharing action initially, if no contact is selected
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updateMenuItem();
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}
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@Override
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public boolean onOptionsItemSelected(final MenuItem item) {
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// Handle presses on the action bar items
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switch (item.getItemId()) {
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case android.R.id.home:
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shareActivity.onBackPressed();
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return true;
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case R.id.action_share_forum:
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selectedContacts = adapter.getSelectedContactIds();
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shareActivity.showMessageScreen(groupId, selectedContacts);
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return true;
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default:
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return super.onOptionsItemSelected(item);
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}
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}
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@Override
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public String getUniqueTag() {
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return TAG;
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}
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@Override
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public void onItemClick(View view, ContactListItem item) {
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((SelectableContactListItem) item).toggleSelected();
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adapter.notifyItemChanged(adapter.findItemPosition(item), item);
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updateMenuItem();
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}
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private void loadContacts(final Collection<ContactId> selection) {
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listener.runOnDbThread(new Runnable() {
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@Override
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public void run() {
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try {
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long now = System.currentTimeMillis();
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List<ContactListItem> contacts = new ArrayList<>();
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for (Contact c : contactManager.getActiveContacts()) {
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LocalAuthor localAuthor = identityManager
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.getLocalAuthor(c.getLocalAuthorId());
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// was this contact already selected?
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boolean selected = selection != null &&
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selection.contains(c.getId());
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// do we have already some sharing with that contact?
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boolean disabled = true;
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if (shareable == FORUM) {
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disabled = !forumSharingManager
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.canBeShared(groupId, c);
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} else if (shareable == BLOG) {
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disabled = !blogSharingManager
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.canBeShared(groupId, c);
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}
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contacts.add(new SelectableContactListItem(c,
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localAuthor, groupId, selected, disabled));
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}
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long duration = System.currentTimeMillis() - now;
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if (LOG.isLoggable(INFO))
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LOG.info("Load took " + duration + " ms");
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displayContacts(Collections.unmodifiableList(contacts));
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} catch (DbException e) {
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displayContacts(Collections.<ContactListItem>emptyList());
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if (LOG.isLoggable(WARNING))
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LOG.log(WARNING, e.toString(), e);
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}
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}
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});
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}
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private void displayContacts(final List<ContactListItem> contacts) {
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shareActivity.runOnUiThread(new Runnable() {
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@Override
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public void run() {
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if (!contacts.isEmpty()) adapter.addAll(contacts);
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else list.showData();
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updateMenuItem();
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}
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});
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}
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private void updateMenuItem() {
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if (menu == null) return;
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MenuItem item = menu.findItem(R.id.action_share_forum);
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if (item == null) return;
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selectedContacts = adapter.getSelectedContactIds();
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if (selectedContacts.size() > 0) {
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item.setVisible(true);
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} else {
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item.setVisible(false);
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}
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}
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}
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