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path: root/src/main/java/de/pixart/messenger/ui/ChooseContactActivity.java
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package de.pixart.messenger.ui;

import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.support.annotation.StringRes;
import android.support.v7.app.ActionBar;
import android.view.ActionMode;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.inputmethod.InputMethodManager;
import android.widget.AbsListView.MultiChoiceModeListener;
import android.widget.AdapterView;
import android.widget.ListView;

import java.util.ArrayList;
import java.util.Collections;
import java.util.HashSet;
import java.util.List;
import java.util.Set;

import de.pixart.messenger.Config;
import de.pixart.messenger.R;
import de.pixart.messenger.entities.Account;
import de.pixart.messenger.entities.Contact;
import de.pixart.messenger.entities.Conversation;
import de.pixart.messenger.entities.ListItem;
import de.pixart.messenger.entities.MucOptions;
import de.pixart.messenger.xmpp.jid.Jid;

public class ChooseContactActivity extends AbstractSearchableListItemActivity {
    private List<String> mActivatedAccounts = new ArrayList<>();
    private List<String> mKnownHosts;

    private Set<Contact> selected;
    private Set<String> filterContacts;
    public static final String EXTRA_TITLE_RES_ID = "extra_title_res_id";

    @Override
    public void onCreate(final Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        filterContacts = new HashSet<>();
        String[] contacts = getIntent().getStringArrayExtra("filter_contacts");
        if (contacts != null) {
            Collections.addAll(filterContacts, contacts);
        }

        if (getIntent().getBooleanExtra("multiple", false)) {
            getListView().setChoiceMode(ListView.CHOICE_MODE_MULTIPLE_MODAL);
            getListView().setMultiChoiceModeListener(new MultiChoiceModeListener() {

                @Override
                public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
                    return false;
                }

                @Override
                public boolean onCreateActionMode(ActionMode mode, Menu menu) {
                    final InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
                    imm.hideSoftInputFromWindow(getSearchEditText().getWindowToken(),
                            InputMethodManager.HIDE_IMPLICIT_ONLY);
                    MenuInflater inflater = getMenuInflater();
                    inflater.inflate(R.menu.select_multiple, menu);
                    selected = new HashSet<>();
                    return true;
                }

                @Override
                public void onDestroyActionMode(ActionMode mode) {
                }

                @Override
                public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
                    switch (item.getItemId()) {
                        case R.id.selection_submit:
                            final Intent request = getIntent();
                            final Intent data = new Intent();
                            data.putExtra("conversation",
                                    request.getStringExtra("conversation"));
                            String[] selection = getSelectedContactJids();
                            data.putExtra("contacts", selection);
                            data.putExtra("multiple", true);
                            data.putExtra(EXTRA_ACCOUNT, request.getStringExtra(EXTRA_ACCOUNT));
                            data.putExtra("subject", request.getStringExtra("subject"));
                            setResult(RESULT_OK, data);
                            finish();
                            return true;
                    }
                    return false;
                }

                @Override
                public void onItemCheckedStateChanged(ActionMode mode, int position, long id, boolean checked) {
                    Contact item = (Contact) getListItems().get(position);
                    if (checked) {
                        selected.add(item);
                    } else {
                        selected.remove(item);
                    }
                    int numSelected = selected.size();
                    MenuItem selectButton = mode.getMenu().findItem(R.id.selection_submit);
                    String buttonText = getResources().getQuantityString(R.plurals.select_contact,
                            numSelected, numSelected);
                    selectButton.setTitle(buttonText);
                }
            });
        }

        getListView().setOnItemClickListener(new AdapterView.OnItemClickListener() {

            @Override
            public void onItemClick(final AdapterView<?> parent, final View view,
                                    final int position, final long id) {
                final InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
                imm.hideSoftInputFromWindow(getSearchEditText().getWindowToken(),
                        InputMethodManager.HIDE_IMPLICIT_ONLY);
                final Intent request = getIntent();
                final Intent data = new Intent();
                final ListItem mListItem = getListItems().get(position);
                data.putExtra("contact", mListItem.getJid().toString());
                String account = request.getStringExtra(EXTRA_ACCOUNT);
                if (account == null && mListItem instanceof Contact) {
                    account = ((Contact) mListItem).getAccount().getJid().toBareJid().toString();
                }
                data.putExtra(EXTRA_ACCOUNT, account);
                data.putExtra("conversation",
                        request.getStringExtra("conversation"));
                data.putExtra("multiple", false);
                data.putExtra("subject", request.getStringExtra("subject"));
                setResult(RESULT_OK, data);
                finish();
            }
        });

    }

    @Override
    public void onStart() {
        super.onStart();
        Intent intent = getIntent();
        @StringRes
        int res = intent != null ? intent.getIntExtra(EXTRA_TITLE_RES_ID, R.string.title_activity_choose_contact) : R.string.title_activity_choose_contact;
        ActionBar bar = getSupportActionBar();
        if (bar != null) {
            try {
                bar.setTitle(res);
            } catch (Exception e) {
                bar.setTitle(R.string.title_activity_choose_contact);
            }
        }
    }

    @Override
    public boolean onCreateOptionsMenu(final Menu menu) {
        super.onCreateOptionsMenu(menu);
        final Intent i = getIntent();
        boolean showEnterJid = i != null && i.getBooleanExtra("show_enter_jid", false);
        menu.findItem(R.id.action_create_contact).setVisible(showEnterJid);
        return true;
    }

    protected void filterContacts(final String needle) {
        getListItems().clear();
        if (xmppConnectionService == null) {
            getListItemAdapter().notifyDataSetChanged();
            return;
        }
        for (final Account account : xmppConnectionService.getAccounts()) {
            if (account.getStatus() != Account.State.DISABLED) {
                for (final Contact contact : account.getRoster().getContacts()) {
                    if (contact.showInRoster() &&
                            !filterContacts.contains(contact.getJid().toBareJid().toString())
                            && contact.match(this, needle)) {
                        getListItems().add(contact);
                    }
                }
            }
        }
        Collections.sort(getListItems());
        getListItemAdapter().notifyDataSetChanged();
    }

    private String[] getSelectedContactJids() {
        List<String> result = new ArrayList<>();
        for (Contact contact : selected) {
            result.add(contact.getJid().toString());
        }
        return result.toArray(new String[result.size()]);
    }


    public void refreshUiReal() {
        //nothing to do. This Activity doesn't implement any listeners
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()) {
            case R.id.action_create_contact:
                showEnterJidDialog();
                return true;
        }
        return super.onOptionsItemSelected(item);
    }

    protected void showEnterJidDialog() {
        EnterJidDialog dialog = new EnterJidDialog(
                this, mKnownHosts, mActivatedAccounts,
                getString(R.string.enter_contact), getString(R.string.select),
                null, getIntent().getStringExtra(EXTRA_ACCOUNT), true, xmppConnectionService.multipleAccounts()
        );

        dialog.setOnEnterJidDialogPositiveListener(new EnterJidDialog.OnEnterJidDialogPositiveListener() {
            @Override
            public boolean onEnterJidDialogPositive(Jid accountJid, Jid contactJid) throws EnterJidDialog.JidError {
                final Intent request = getIntent();
                final Intent data = new Intent();
                data.putExtra("contact", contactJid.toString());
                data.putExtra(EXTRA_ACCOUNT, accountJid.toString());
                data.putExtra("conversation",
                        request.getStringExtra("conversation"));
                data.putExtra("multiple", false);
                data.putExtra("subject", request.getStringExtra("subject"));
                setResult(RESULT_OK, data);
                finish();

                return true;
            }
        });

        dialog.show();
    }

    @Override
    void onBackendConnected() {
        filterContacts();

        this.mActivatedAccounts.clear();
        for (Account account : xmppConnectionService.getAccounts()) {
            if (account.getStatus() != Account.State.DISABLED) {
                if (Config.DOMAIN_LOCK != null) {
                    this.mActivatedAccounts.add(account.getJid().getLocalpart());
                } else {
                    this.mActivatedAccounts.add(account.getJid().toBareJid().toString());
                }
            }
        }
        this.mKnownHosts = xmppConnectionService.getKnownHosts();
    }

    public static Intent create(Activity activity, Conversation conversation) {
        final Intent intent = new Intent(activity, ChooseContactActivity.class);
        List<String> contacts = new ArrayList<>();
        if (conversation.getMode() == Conversation.MODE_MULTI) {
            for (MucOptions.User user : conversation.getMucOptions().getUsers(false)) {
                Jid jid = user.getRealJid();
                if (jid != null) {
                    contacts.add(jid.toBareJid().toString());
                }
            }
        } else {
            contacts.add(conversation.getJid().toBareJid().toString());
        }
        intent.putExtra("filter_contacts", contacts.toArray(new String[contacts.size()]));
        intent.putExtra("conversation", conversation.getUuid());
        intent.putExtra("multiple", true);
        intent.putExtra("show_enter_jid", true);
        intent.putExtra(EXTRA_ACCOUNT, conversation.getAccount().getJid().toBareJid().toString());
        return intent;
    }
}