2014-05-16 18:19:48 +02:00

431 lines
16 KiB
Java

package com.cradle.iitc_mobile.prefs;
import android.content.ActivityNotFoundException;
import android.content.Context;
import android.content.Intent;
import android.content.res.AssetManager;
import android.net.Uri;
import android.os.Bundle;
import android.preference.PreferenceActivity;
import android.text.TextUtils;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ListAdapter;
import android.widget.TextView;
import android.widget.Toast;
import com.cradle.iitc_mobile.IITC_FileManager;
import com.cradle.iitc_mobile.IITC_NotificationHelper;
import com.cradle.iitc_mobile.Log;
import com.cradle.iitc_mobile.R;
import com.cradle.iitc_mobile.fragments.PluginsFragment;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.TreeMap;
public class PluginPreferenceActivity extends PreferenceActivity {
private final static int COPY_PLUGIN_REQUEST = 1;
private List<Header> mHeaders;
// we use a tree map to have a map with alphabetical order
// don't initialize the asset plugin map, because it tells us if the settings are started the first time
// and we have to parse plugins to build the preference screen
private static TreeMap<String, ArrayList<PluginPreference>> sAssetPlugins = null;
// user plugins can be initialized.
private static final TreeMap<String, ArrayList<PluginPreference>> sUserPlugins =
new TreeMap<String, ArrayList<PluginPreference>>();
private static int mDeletedPlugins = 0;
private IITC_FileManager mFileManager;
@Override
public void setListAdapter(final ListAdapter adapter) {
if (adapter == null) {
super.setListAdapter(null);
} else {
super.setListAdapter(new HeaderAdapter(this, mHeaders));
}
}
@Override
public void onBuildHeaders(final List<Header> target) {
getActionBar().setDisplayHomeAsUpEnabled(true);
// notify about external plugins
final IITC_NotificationHelper nh = new IITC_NotificationHelper(this);
nh.showNotice(IITC_NotificationHelper.NOTICE_EXTPLUGINS);
mHeaders = target;
// since the plugins container is static,
// it is enough to parse the plugin only on first start.
if (sAssetPlugins == null) {
Log.d("opened plugin prefs the first time since app start -> parse plugins");
sAssetPlugins = new TreeMap<String, ArrayList<PluginPreference>>();
setUpPluginPreferenceScreen();
} else {
checkForNewPlugins();
}
addHeaders();
}
@Override
protected void onCreate(final Bundle savedInstanceState) {
// on tablets, select a default fragment BEFORE calling super onCreate
// otherwise the application will crash, because the first header (the
// category) does not have a fragment assigned
if (onIsMultiPane()) {
getIntent()
.putExtra(PreferenceActivity.EXTRA_SHOW_FRAGMENT, PluginsFragment.class.getName());
}
mFileManager = new IITC_FileManager(this);
final Uri uri = getIntent().getData();
if (uri != null) {
mFileManager.installPlugin(uri, true);
}
super.onCreate(savedInstanceState);
}
@Override
protected void onResume() {
// Call super :
super.onResume();
// Select the displayed fragment in the headers (when using a tablet) :
// This should be done by Android, it is a bug fix
// thx to http://stackoverflow.com/a/16793839
if (mHeaders != null) {
final String displayedFragment = getIntent().getStringExtra(EXTRA_SHOW_FRAGMENT);
if (displayedFragment != null) {
for (final Header header : mHeaders) {
if (displayedFragment.equals(header.fragment)) {
switchToHeader(header);
break;
}
}
}
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.plugins, menu);
return super.onCreateOptionsMenu(menu);
}
@Override
public boolean onOptionsItemSelected(final MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home: // exit settings when home button (iitc icon) is pressed
onBackPressed();
return true;
case R.id.menu_plugins_add:
// create the chooser Intent
final Intent target = new Intent(Intent.ACTION_GET_CONTENT);
// iitcm only parses *.user.js scripts
target.setType("file/*");
target.addCategory(Intent.CATEGORY_OPENABLE);
try {
startActivityForResult(Intent.createChooser(target, "Choose file"), COPY_PLUGIN_REQUEST);
} catch (final ActivityNotFoundException e) {
Toast.makeText(this, "No activity to select a file found." +
"Please install a file browser of your choice!", Toast.LENGTH_LONG).show();
}
default:
return super.onOptionsItemSelected(item);
}
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
switch(requestCode) {
case COPY_PLUGIN_REQUEST:
if (data != null && data.getData() != null) {
mFileManager.installPlugin(data.getData(), true);
return;
}
break;
default:
super.onActivityResult(requestCode, resultCode, data);
break;
}
}
@Override
protected boolean isValidFragment(final String s) {
return true;
}
// called by Plugins Fragment
public static ArrayList<PluginPreference> getPluginPreference(final String key, final boolean userPlugin) {
if (userPlugin) return sUserPlugins.get(key);
return sAssetPlugins.get(key);
}
private String[] getAssetPlugins() {
final AssetManager am = getAssets();
String[] asset_array = null;
try {
asset_array = am.list("plugins");
} catch (final IOException e) {
Log.w(e);
}
if (asset_array == null) {
asset_array = new String[0];
}
return asset_array;
}
private File[] getUserPlugins() {
final File directory = new File(IITC_FileManager.PLUGINS_PATH);
File[] files = directory.listFiles();
if (files == null) {
files = new File[0];
}
return files;
}
void checkForNewPlugins() {
final File[] userPlugins = getUserPlugins();
final String[] officialPlugins = getAssetPlugins();
int numPlugins = 0;
for (final Map.Entry<String, ArrayList<PluginPreference>> entry : sUserPlugins.entrySet()) {
numPlugins += entry.getValue().size();
}
for (final Map.Entry<String, ArrayList<PluginPreference>> entry : sAssetPlugins.entrySet()) {
numPlugins += entry.getValue().size();
}
if ((userPlugins.length + officialPlugins.length) != (numPlugins + mDeletedPlugins)) {
Log.d("new or less plugins found since last start, rebuild preferences");
sAssetPlugins.clear();
sUserPlugins.clear();
mDeletedPlugins = 0;
setUpPluginPreferenceScreen();
}
}
void setUpPluginPreferenceScreen() {
// get all plugins from asset manager
final String[] assets = getAssetPlugins();
for (final String asset : assets) {
// find user plugin name for user readable entries
try {
final InputStream is = getAssets().open("plugins/" + asset);
addPluginPreference(IITC_FileManager.readStream(is), asset, false);
} catch (final FileNotFoundException e) {
Log.e(asset + " not found", e);
} catch (final IOException e) {
Log.e("couldn't read plugin " + asset, e);
}
}
// load user plugins from <storage-path>/IITC_Mobile/plugins/
final File[] files = getUserPlugins();
for (final File file : files) {
try {
final InputStream is = new FileInputStream(file);
addPluginPreference(IITC_FileManager.readStream(is), file.toString(), true);
} catch (final FileNotFoundException e) {
Log.e("couldn't read plugin " + file.toString(), e);
}
}
}
void addPluginPreference(final String src, final String plugin_key, final boolean userPlugin) {
// parse plugin name, description and category
// we need default versions here otherwise iitcm may crash
final HashMap<String, String> info = IITC_FileManager.getScriptInfo(src);
String plugin_name = info.get("name");
final String plugin_cat = info.get("category");
final String plugin_desc = info.get("description");
// remove IITC plugin prefix from plugin_name
plugin_name = plugin_name.replace("IITC Plugin: ", "");
plugin_name = plugin_name.replace("IITC plugin: ", "");
// do not add deleted or stock map plugins
if (plugin_cat.equals("Deleted") || plugin_cat.equals("Stock")) {
mDeletedPlugins++;
return;
}
// now we have all stuff together and can build the preference
// first check if we need a new category
if (userPlugin) {
if (!sUserPlugins.containsKey(plugin_cat)) {
sUserPlugins.put(plugin_cat, new ArrayList<PluginPreference>());
Log.d("create " + plugin_cat + " and add " + plugin_name);
}
} else {
if (!sAssetPlugins.containsKey(plugin_cat)) {
sAssetPlugins.put(plugin_cat, new ArrayList<PluginPreference>());
Log.d("create " + plugin_cat + " and add " + plugin_name);
}
}
// now build a new checkable preference for the plugin
final PluginPreference plugin_pref = new PluginPreference(this);
plugin_pref.setKey(plugin_key);
plugin_pref.setTitle(plugin_name);
plugin_pref.setSummary(plugin_desc);
plugin_pref.setDefaultValue(false);
plugin_pref.setPersistent(true);
final ArrayList<PluginPreference> list =
userPlugin ? sUserPlugins.get(plugin_cat) : sAssetPlugins.get(plugin_cat);
list.add(plugin_pref);
}
void addHeaders() {
if (sUserPlugins.size() > 0) {
final Header category = new Header();
category.title = "User Plugins";
mHeaders.add(category);
for (final Map.Entry<String, ArrayList<PluginPreference>> entry : sUserPlugins.entrySet()) {
addHeader(entry.getKey(), true);
}
}
if (sAssetPlugins.size() > 0) {
final Header category = new Header();
category.title = "Official Plugins";
mHeaders.add(category);
for (final Map.Entry<String, ArrayList<PluginPreference>> entry : sAssetPlugins.entrySet()) {
addHeader(entry.getKey(), false);
}
}
}
private void addHeader(final String title, final boolean userPlugin) {
final Bundle bundle = new Bundle();
bundle.putString("category", title);
bundle.putBoolean("userPlugin", userPlugin);
final Header newHeader = new Header();
newHeader.title = title;
newHeader.fragmentArguments = bundle;
newHeader.fragment = "com.cradle.iitc_mobile.fragments.PluginsFragment";
mHeaders.add(newHeader);
}
/*
* This code is only for header categories. Thx to Android that we haven't this by default and
* thx to Stackoverflow for this post: http://stackoverflow.com/a/18720212
*/
private static class HeaderAdapter extends ArrayAdapter<Header> {
static final int HEADER_TYPE_CATEGORY = 0;
static final int HEADER_TYPE_NORMAL = 1;
private static final int HEADER_TYPE_COUNT = HEADER_TYPE_NORMAL + 1;
private static class HeaderViewHolder {
TextView title;
TextView summary;
}
private final LayoutInflater mInflater;
static int getHeaderType(final Header header) {
if (header.fragment == null && header.intent == null) {
return HEADER_TYPE_CATEGORY;
} else {
return HEADER_TYPE_NORMAL;
}
}
@Override
public int getItemViewType(final int position) {
final Header header = getItem(position);
return getHeaderType(header);
}
@Override
public boolean areAllItemsEnabled() {
return false; // because of categories
}
@Override
public boolean isEnabled(final int position) {
return getItemViewType(position) != HEADER_TYPE_CATEGORY;
}
@Override
public int getViewTypeCount() {
return HEADER_TYPE_COUNT;
}
@Override
public boolean hasStableIds() {
return true;
}
public HeaderAdapter(final Context context, final List<Header> objects) {
super(context, 0, objects);
mInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
@Override
public View getView(final int position, final View convertView, final ViewGroup parent) {
HeaderViewHolder holder;
final Header header = getItem(position);
final int headerType = getHeaderType(header);
View view = null;
if (convertView == null) {
holder = new HeaderViewHolder();
switch (headerType) {
case HEADER_TYPE_CATEGORY:
view = new TextView(getContext(), null, android.R.attr.listSeparatorTextViewStyle);
holder.title = (TextView) view;
break;
case HEADER_TYPE_NORMAL:
view = mInflater.inflate(R.layout.preference_header_item, parent, false);
holder.title = (TextView) view.findViewById(R.id.plug_pref_title);
holder.summary = (TextView) view.findViewById(R.id.plug_pref_summary);
break;
}
view.setTag(holder);
} else {
view = convertView;
holder = (HeaderViewHolder) view.getTag();
}
// All view fields must be updated every time, because the view may be recycled
switch (headerType) {
case HEADER_TYPE_CATEGORY:
holder.title.setText(header.getTitle(getContext().getResources()));
break;
case HEADER_TYPE_NORMAL:
holder.title.setText(header.getTitle(getContext().getResources()));
final CharSequence summary = header.getSummary(getContext().getResources());
if (!TextUtils.isEmpty(summary)) {
holder.summary.setVisibility(View.VISIBLE);
holder.summary.setText(summary);
} else {
holder.summary.setVisibility(View.GONE);
}
break;
}
return view;
}
}
}