301 lines
11 KiB
Java
301 lines
11 KiB
Java
/*
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* Copyright (C) 2014 Dominik Schürmann <dominik@dominikschuermann.de>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package org.sufficientlysecure.keychain.ui;
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import android.app.Activity;
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import android.content.Context;
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import android.content.Intent;
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import android.content.res.Configuration;
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import android.graphics.Color;
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import android.os.Bundle;
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import android.support.v4.app.ActionBarDrawerToggle;
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import android.support.v4.view.GravityCompat;
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import android.support.v4.widget.DrawerLayout;
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import android.support.v4.widget.FixedDrawerLayout;
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import android.support.v7.app.ActionBarActivity;
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import android.view.LayoutInflater;
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import android.view.Menu;
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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 android.widget.AdapterView;
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import android.widget.ArrayAdapter;
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import android.widget.ImageView;
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import android.widget.ListView;
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import android.widget.TextView;
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import org.sufficientlysecure.keychain.Constants;
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import org.sufficientlysecure.keychain.R;
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public class DrawerActivity extends ActionBarActivity {
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private FixedDrawerLayout mDrawerLayout;
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private ListView mDrawerList;
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private ActionBarDrawerToggle mDrawerToggle;
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private CharSequence mDrawerTitle;
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private CharSequence mTitle;
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private boolean mIsDrawerLocked = false;
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private Class mSelectedItem;
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private static final int MENU_ID_PREFERENCE = 222;
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private static final int MENU_ID_HELP = 223;
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protected void setupDrawerNavigation(Bundle savedInstanceState) {
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mDrawerTitle = getString(R.string.app_name);
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mDrawerLayout = (FixedDrawerLayout) findViewById(R.id.drawer_layout);
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mDrawerList = (ListView) findViewById(R.id.left_drawer);
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ViewGroup viewGroup = (ViewGroup) findViewById(R.id.content_frame);
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int leftMarginLoaded = ((ViewGroup.MarginLayoutParams) viewGroup.getLayoutParams()).leftMargin;
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int leftMarginInTablets = (int) getResources().getDimension(R.dimen.drawer_size);
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int errorInMarginAllowed = 5;
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// if the left margin of the loaded layout is close to the
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// one used in tablets then set drawer as open and locked
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if (Math.abs(leftMarginLoaded - leftMarginInTablets) < errorInMarginAllowed) {
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mDrawerLayout.setDrawerLockMode(DrawerLayout.LOCK_MODE_LOCKED_OPEN, mDrawerList);
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mDrawerLayout.setScrimColor(Color.TRANSPARENT);
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mIsDrawerLocked = true;
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} else {
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// set a custom shadow that overlays the main content when the drawer opens
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mDrawerLayout.setDrawerShadow(R.drawable.drawer_shadow, GravityCompat.START);
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mIsDrawerLocked = false;
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}
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NavItem mItemIconTexts[] = new NavItem[]{
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new NavItem(R.drawable.ic_action_person, getString(R.string.nav_keys)),
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new NavItem(R.drawable.ic_action_secure, getString(R.string.nav_encrypt)),
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new NavItem(R.drawable.ic_action_not_secure, getString(R.string.nav_decrypt)),
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new NavItem(R.drawable.ic_action_view_as_list, getString(R.string.nav_apps))};
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mDrawerList.setAdapter(new NavigationDrawerAdapter(this, R.layout.drawer_list_item,
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mItemIconTexts));
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mDrawerList.setOnItemClickListener(new DrawerItemClickListener());
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// enable ActionBar app icon to behave as action to toggle nav drawer
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// if the drawer is not locked
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if (!mIsDrawerLocked) {
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getSupportActionBar().setDisplayHomeAsUpEnabled(true);
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getSupportActionBar().setHomeButtonEnabled(true);
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}
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// ActionBarDrawerToggle ties together the the proper interactions
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// between the sliding drawer and the action bar app icon
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mDrawerToggle = new ActionBarDrawerToggle(this, /* host Activity */
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mDrawerLayout, /* DrawerLayout object */
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R.drawable.ic_drawer, /* nav drawer image to replace 'Up' caret */
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R.string.drawer_open, /* "open drawer" description for accessibility */
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R.string.drawer_close /* "close drawer" description for accessibility */
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) {
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public void onDrawerClosed(View view) {
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getSupportActionBar().setTitle(mTitle);
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callIntentForDrawerItem(mSelectedItem);
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}
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public void onDrawerOpened(View drawerView) {
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mTitle = getSupportActionBar().getTitle();
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getSupportActionBar().setTitle(mDrawerTitle);
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// creates call to onPrepareOptionsMenu()
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supportInvalidateOptionsMenu();
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}
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};
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if (!mIsDrawerLocked) {
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mDrawerLayout.setDrawerListener(mDrawerToggle);
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} else {
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// If the drawer is locked open make it un-focusable
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// so that it doesn't consume all the Back button presses
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mDrawerLayout.setFocusableInTouchMode(false);
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}
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}
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/**
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* Uses startActivity to call the Intent of the given class
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*
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* @param drawerItem the class of the drawer item you want to load. Based on Constants.DrawerItems.*
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*/
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public void callIntentForDrawerItem(Class drawerItem) {
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// creates call to onPrepareOptionsMenu()
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supportInvalidateOptionsMenu();
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// call intent activity if selected
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if (drawerItem != null) {
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finish();
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overridePendingTransition(0, 0);
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Intent intent = new Intent(this, drawerItem);
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startActivity(intent);
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// disable animation of activity start
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overridePendingTransition(0, 0);
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}
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}
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@Override
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public boolean onCreateOptionsMenu(Menu menu) {
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if (mDrawerToggle == null) {
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return super.onCreateOptionsMenu(menu);
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}
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menu.add(42, MENU_ID_PREFERENCE, 100, R.string.menu_preferences);
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menu.add(42, MENU_ID_HELP, 101, R.string.menu_help);
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return super.onCreateOptionsMenu(menu);
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}
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@Override
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public boolean onOptionsItemSelected(MenuItem item) {
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if (mDrawerToggle == null) {
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return super.onOptionsItemSelected(item);
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}
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// The action bar home/up action should open or close the drawer.
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// ActionBarDrawerToggle will take care of this.
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if (mDrawerToggle.onOptionsItemSelected(item)) {
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return true;
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}
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switch (item.getItemId()) {
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case MENU_ID_PREFERENCE: {
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Intent intent = new Intent(this, PreferencesActivity.class);
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startActivity(intent);
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return true;
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}
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case MENU_ID_HELP: {
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Intent intent = new Intent(this, HelpActivity.class);
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startActivity(intent);
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return true;
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}
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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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/**
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* The click listener for ListView in the navigation drawer
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*/
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private class DrawerItemClickListener implements ListView.OnItemClickListener {
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@Override
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public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
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selectItem(position);
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}
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}
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private void selectItem(int position) {
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// update selected item and title, then close the drawer
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mDrawerList.setItemChecked(position, true);
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// set selected class
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mSelectedItem = Constants.DrawerItems.ARRAY[position];
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// setTitle(mDrawerTitles[position]);
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// If drawer isn't locked just close the drawer and
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// it will move to the selected item by itself (via drawer toggle listener)
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if (!mIsDrawerLocked) {
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mDrawerLayout.closeDrawer(mDrawerList);
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// else move to the selected item yourself
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} else {
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callIntentForDrawerItem(mSelectedItem);
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}
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}
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/**
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* When using the ActionBarDrawerToggle, you must call it during onPostCreate() and
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* onConfigurationChanged()...
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*/
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@Override
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protected void onPostCreate(Bundle savedInstanceState) {
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super.onPostCreate(savedInstanceState);
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// Sync the toggle state after onRestoreInstanceState has occurred.
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if (mDrawerToggle != null) {
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mDrawerToggle.syncState();
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}
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}
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@Override
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public void onConfigurationChanged(Configuration newConfig) {
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super.onConfigurationChanged(newConfig);
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// Pass any configuration change to the drawer toggles
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if (mDrawerToggle != null) {
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mDrawerToggle.onConfigurationChanged(newConfig);
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}
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}
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private class NavItem {
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public int icon; // res-id
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public String title;
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/**
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* NavItem constructor
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* @param icon The icons resource-id
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* @param title The title of the menu entry
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*/
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public NavItem(int icon, String title) {
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super();
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this.icon = icon;
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this.title = title;
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}
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}
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private class NavigationDrawerAdapter extends ArrayAdapter<NavItem> {
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Context mContext;
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int mLayoutResourceId;
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NavItem mData[] = null;
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public NavigationDrawerAdapter(Context context, int layoutResourceId, NavItem[] data) {
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super(context, layoutResourceId, data);
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this.mLayoutResourceId = layoutResourceId;
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this.mContext = context;
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this.mData = data;
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}
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@Override
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public View getView(int position, View convertView, ViewGroup parent) {
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View row = convertView;
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NavItemHolder holder;
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if (row == null) {
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LayoutInflater inflater = ((Activity) mContext).getLayoutInflater();
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row = inflater.inflate(mLayoutResourceId, parent, false);
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holder = new NavItemHolder();
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holder.mImg = (ImageView) row.findViewById(R.id.drawer_item_icon);
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holder.mTxtTitle = (TextView) row.findViewById(R.id.drawer_item_text);
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row.setTag(holder);
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} else {
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holder = (NavItemHolder) row.getTag();
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}
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NavItem item = mData[position];
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holder.mTxtTitle.setText(item.title);
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holder.mImg.setImageResource(item.icon);
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return row;
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}
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}
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static class NavItemHolder {
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ImageView mImg;
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TextView mTxtTitle;
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}
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}
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