org.mariotaku.twidere.fragment.ExtensionsListFragment.java Source code

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Here is the source code for org.mariotaku.twidere.fragment.ExtensionsListFragment.java

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/*
 *            Twidere - Twitter client for Android
 * 
 * Copyright (C) 2012 Mariotaku Lee <mariotaku.lee@gmail.com>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package org.mariotaku.twidere.fragment;

import java.util.List;

import org.mariotaku.popupmenu.PopupMenu;
import org.mariotaku.popupmenu.PopupMenu.OnMenuItemClickListener;
import org.mariotaku.twidere.Constants;
import org.mariotaku.twidere.R;
import org.mariotaku.twidere.adapter.ExtensionsAdapter;
import org.mariotaku.twidere.loader.ExtensionsListLoader;
import org.mariotaku.twidere.loader.ExtensionsListLoader.ExtensionInfo;
import org.mariotaku.twidere.model.Panes;
import org.mariotaku.twidere.util.PermissionsManager;

import android.content.Intent;
import android.content.pm.PackageManager;
import android.content.res.Resources;
import android.net.Uri;
import android.os.Bundle;
import android.support.v4.app.LoaderManager.LoaderCallbacks;
import android.support.v4.content.Loader;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.AdapterView.OnItemLongClickListener;
import android.widget.ListView;

public class ExtensionsListFragment extends BaseListFragment
        implements Constants, LoaderCallbacks<List<ExtensionInfo>>, OnItemClickListener, OnItemLongClickListener,
        OnMenuItemClickListener, Panes.Right {

    private ExtensionsAdapter mAdapter;
    private PackageManager mPackageManager;
    private PermissionsManager mPermissionsManager;
    private ExtensionInfo mSelectedExtension;
    private ListView mListView;
    private PopupMenu mPopupMenu;

    @Override
    public void onActivityCreated(final Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);
        mPackageManager = getActivity().getPackageManager();
        mPermissionsManager = new PermissionsManager(getActivity());
        mAdapter = new ExtensionsAdapter(getActivity());
        setListAdapter(mAdapter);
        mListView = getListView();
        mListView.setOnItemClickListener(this);
        mListView.setOnItemLongClickListener(this);
        getLoaderManager().initLoader(0, null, this);
        setListShown(false);
    }

    @Override
    public Loader<List<ExtensionInfo>> onCreateLoader(final int id, final Bundle args) {
        return new ExtensionsListLoader(getActivity(), mPackageManager);
    }

    @Override
    public View onCreateView(final LayoutInflater inflater, final ViewGroup container,
            final Bundle savedInstanceState) {
        final View view = super.onCreateView(inflater, container, savedInstanceState);
        final View lv = view.findViewById(android.R.id.list);
        final Resources res = getResources();
        final float density = res.getDisplayMetrics().density;
        final int padding = (int) density * 16;
        lv.setId(android.R.id.list);
        lv.setPadding(padding, 0, padding, 0);
        return view;
    }

    @Override
    public void onItemClick(final AdapterView<?> parent, final View view, final int position, final long id) {
        openSettings(mAdapter.getItem(position));
    }

    @Override
    public boolean onItemLongClick(final AdapterView<?> parent, final View view, final int position,
            final long id) {
        mSelectedExtension = mAdapter.getItem(position);
        if (mSelectedExtension == null)
            return false;
        mPopupMenu = PopupMenu.getInstance(getActivity(), view);
        mPopupMenu.inflate(R.menu.action_extension);
        final Menu menu = mPopupMenu.getMenu();
        final MenuItem settings = menu.findItem(MENU_SETTINGS);
        final Intent intent = mSelectedExtension.pname != null && mSelectedExtension.settings != null
                ? new Intent(INTENT_ACTION_EXTENSION_SETTINGS)
                : null;
        if (intent != null) {
            intent.setClassName(mSelectedExtension.pname, mSelectedExtension.settings);
        }
        settings.setVisible(intent != null && mPackageManager.queryIntentActivities(intent, 0).size() == 1);
        mPopupMenu.setOnMenuItemClickListener(this);
        mPopupMenu.show();
        return true;
    }

    @Override
    public void onLoaderReset(final Loader<List<ExtensionInfo>> loader) {
        mAdapter.setData(null);
    }

    @Override
    public void onLoadFinished(final Loader<List<ExtensionInfo>> loader, final List<ExtensionInfo> data) {
        mAdapter.setData(data);
        setListShown(true);
    }

    @Override
    public boolean onMenuItemClick(final MenuItem item) {
        if (mSelectedExtension == null)
            return false;
        switch (item.getItemId()) {
        case MENU_SETTINGS: {
            openSettings(mSelectedExtension);
            break;
        }
        case MENU_DELETE: {
            final Uri packageUri = Uri.parse("package:" + mSelectedExtension.pname);
            final Intent uninstallIntent = new Intent(Intent.ACTION_UNINSTALL_PACKAGE, packageUri);
            startActivity(uninstallIntent);
            break;
        }
        case MENU_REVOKE: {
            mPermissionsManager.revoke(mSelectedExtension.pname);
            mAdapter.notifyDataSetChanged();
            break;
        }
        }
        return false;
    }

    @Override
    public void onResume() {
        super.onResume();
        mAdapter.notifyDataSetChanged();
    }

    @Override
    public void onStop() {
        if (mPopupMenu != null) {
            mPopupMenu.dismiss();
        }
        super.onStop();
    }

    private boolean openSettings(final ExtensionInfo info) {
        if (info == null || info.settings == null)
            return false;
        final Intent intent = new Intent(INTENT_ACTION_EXTENSIONS);
        intent.setClassName(info.pname, info.settings);
        try {
            startActivity(intent);
        } catch (final Exception e) {
            Log.w(LOGTAG, e);
            return false;
        }
        return true;
    }

}