233 lines
8.4 KiB
Java
233 lines
8.4 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.widget;
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import android.content.Context;
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import android.database.Cursor;
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import android.os.Bundle;
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import android.support.v4.app.FragmentActivity;
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import android.support.v4.app.LoaderManager;
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import android.support.v4.content.Loader;
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import android.support.v4.widget.CursorAdapter;
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import android.util.AttributeSet;
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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.BaseAdapter;
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import android.widget.Spinner;
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import android.widget.SpinnerAdapter;
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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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import org.sufficientlysecure.keychain.pgp.KeyRing;
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import org.sufficientlysecure.keychain.pgp.PgpKeyHelper;
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import org.sufficientlysecure.keychain.provider.KeychainContract;
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import org.sufficientlysecure.keychain.util.Log;
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public abstract class KeySpinner extends Spinner {
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public interface OnKeyChangedListener {
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public void onKeyChanged(long masterKeyId);
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}
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private long mSelectedKeyId;
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private SelectKeyAdapter mAdapter = new SelectKeyAdapter();
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private OnKeyChangedListener mListener;
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public KeySpinner(Context context) {
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super(context);
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initView();
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}
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public KeySpinner(Context context, AttributeSet attrs) {
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super(context, attrs);
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initView();
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}
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public KeySpinner(Context context, AttributeSet attrs, int defStyle) {
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super(context, attrs, defStyle);
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initView();
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}
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private void initView() {
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setAdapter(mAdapter);
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super.setOnItemSelectedListener(new OnItemSelectedListener() {
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@Override
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public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
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if (mListener != null) {
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mListener.onKeyChanged(id);
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}
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}
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@Override
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public void onNothingSelected(AdapterView<?> parent) {
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if (mListener != null) {
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mListener.onKeyChanged(Constants.key.none);
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}
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}
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});
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}
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public abstract Loader<Cursor> onCreateLoader();
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@Override
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public void setOnItemSelectedListener(OnItemSelectedListener listener) {
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throw new UnsupportedOperationException();
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}
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public void setOnKeyChangedListener(OnKeyChangedListener listener) {
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mListener = listener;
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}
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@Override
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protected void onAttachedToWindow() {
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super.onAttachedToWindow();
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reload();
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}
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public void reload() {
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if (getContext() instanceof FragmentActivity) {
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((FragmentActivity) getContext()).getSupportLoaderManager().restartLoader(hashCode(), null, new LoaderManager.LoaderCallbacks<Cursor>() {
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@Override
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public Loader<Cursor> onCreateLoader(int id, Bundle args) {
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return KeySpinner.this.onCreateLoader();
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}
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@Override
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public void onLoadFinished(Loader<Cursor> loader, Cursor data) {
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mAdapter.swapCursor(data);
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}
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@Override
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public void onLoaderReset(Loader<Cursor> loader) {
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mAdapter.swapCursor(null);
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}
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});
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} else {
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Log.e(Constants.TAG, "KeySpinner must be attached to FragmentActivity, this is " + getContext().getClass());
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}
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}
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public long getSelectedKeyId() {
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return mSelectedKeyId;
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}
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public void setSelectedKeyId(long selectedKeyId) {
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this.mSelectedKeyId = selectedKeyId;
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}
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private class SelectKeyAdapter extends BaseAdapter implements SpinnerAdapter {
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private CursorAdapter inner;
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private int mIndexUserId;
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private int mIndexKeyId;
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private int mIndexMasterKeyId;
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public SelectKeyAdapter() {
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inner = new CursorAdapter(null, null, 0) {
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@Override
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public View newView(Context context, Cursor cursor, ViewGroup parent) {
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return View.inflate(getContext(), R.layout.keyspinner_key, null);
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}
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@Override
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public void bindView(View view, Context context, Cursor cursor) {
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String[] userId = KeyRing.splitUserId(cursor.getString(mIndexUserId));
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((TextView) view.findViewById(android.R.id.title)).setText(userId[2] == null ? userId[0] : (userId[0] + " (" + userId[2] + ")"));
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((TextView) view.findViewById(android.R.id.text1)).setText(userId[1]);
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((TextView) view.findViewById(android.R.id.text2)).setText(PgpKeyHelper.convertKeyIdToHex(cursor.getLong(mIndexKeyId)));
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}
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@Override
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public long getItemId(int position) {
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try {
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return ((Cursor) getItem(position)).getLong(mIndexMasterKeyId);
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} catch (Exception e) {
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// This can happen on concurrent modification :(
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return Constants.key.none;
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}
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}
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};
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}
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public Cursor swapCursor(Cursor newCursor) {
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if (newCursor == null) return inner.swapCursor(null);
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mIndexKeyId = newCursor.getColumnIndex(KeychainContract.KeyRings.KEY_ID);
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mIndexUserId = newCursor.getColumnIndex(KeychainContract.KeyRings.USER_ID);
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mIndexMasterKeyId = newCursor.getColumnIndex(KeychainContract.KeyRings.MASTER_KEY_ID);
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if (newCursor.moveToFirst()) {
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do {
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if (newCursor.getLong(mIndexMasterKeyId) == mSelectedKeyId) {
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setSelection(newCursor.getPosition() + 1);
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}
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} while (newCursor.moveToNext());
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}
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return inner.swapCursor(newCursor);
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}
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@Override
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public int getCount() {
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return inner.getCount() + 1;
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}
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@Override
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public Object getItem(int position) {
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if (position == 0) return null;
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return inner.getItem(position - 1);
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}
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@Override
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public long getItemId(int position) {
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if (position == 0) return Constants.key.none;
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return inner.getItemId(position - 1);
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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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try {
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View v = getDropDownView(position, convertView, parent);
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v.findViewById(android.R.id.text1).setVisibility(View.GONE);
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return v;
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} catch (NullPointerException e) {
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// This is for the preview...
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return View.inflate(getContext(), android.R.layout.simple_list_item_1, null);
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}
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}
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@Override
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public View getDropDownView(int position, View convertView, ViewGroup parent) {
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View v;
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if (position == 0) {
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if (convertView == null) {
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v = inner.newView(null, null, parent);
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} else {
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v = convertView;
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}
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((TextView) v.findViewById(android.R.id.title)).setText("None");
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v.findViewById(android.R.id.text1).setVisibility(View.GONE);
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v.findViewById(android.R.id.text2).setVisibility(View.GONE);
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} else {
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v = inner.getView(position - 1, convertView, parent);
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v.findViewById(android.R.id.text1).setVisibility(View.VISIBLE);
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v.findViewById(android.R.id.text2).setVisibility(View.VISIBLE);
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}
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return v;
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}
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}
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}
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