diff options
Diffstat (limited to 'OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/SelectPublicKeyFragment.java')
| -rw-r--r-- | OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/SelectPublicKeyFragment.java | 350 |
1 files changed, 350 insertions, 0 deletions
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/SelectPublicKeyFragment.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/SelectPublicKeyFragment.java new file mode 100644 index 000000000..9bfe3eaa9 --- /dev/null +++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/SelectPublicKeyFragment.java @@ -0,0 +1,350 @@ +/* + * Copyright (C) 2012-2013 Dominik Schürmann <dominik@dominikschuermann.de> + * Copyright (C) 2010 Thialfihar <thi@thialfihar.org> + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package org.sufficientlysecure.keychain.ui; + +import android.content.Context; +import android.database.Cursor; +import android.database.DatabaseUtils; +import android.net.Uri; +import android.os.Bundle; +import android.support.v4.app.LoaderManager; +import android.support.v4.content.CursorLoader; +import android.support.v4.content.Loader; +import android.text.Editable; +import android.text.TextUtils; +import android.text.TextWatcher; +import android.view.Gravity; +import android.view.LayoutInflater; +import android.view.View; +import android.view.ViewGroup; +import android.widget.EditText; +import android.widget.FrameLayout; +import android.widget.LinearLayout; +import android.widget.ListView; +import android.widget.ProgressBar; +import android.widget.TextView; + +import org.sufficientlysecure.keychain.Id; +import org.sufficientlysecure.keychain.R; +import org.sufficientlysecure.keychain.compatibility.ListFragmentWorkaround; +import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings; +import org.sufficientlysecure.keychain.provider.KeychainContract.Keys; +import org.sufficientlysecure.keychain.provider.KeychainContract.UserIds; +import org.sufficientlysecure.keychain.provider.KeychainDatabase; +import org.sufficientlysecure.keychain.provider.KeychainDatabase.Tables; +import org.sufficientlysecure.keychain.ui.adapter.SelectKeyCursorAdapter; + +import java.util.Date; +import java.util.Vector; + +public class SelectPublicKeyFragment extends ListFragmentWorkaround implements TextWatcher, + LoaderManager.LoaderCallbacks<Cursor> { + public static final String ARG_PRESELECTED_KEY_IDS = "preselected_key_ids"; + + private SelectKeyCursorAdapter mAdapter; + private EditText mSearchView; + private long mSelectedMasterKeyIds[]; + private String mCurQuery; + + // copied from ListFragment + static final int INTERNAL_EMPTY_ID = 0x00ff0001; + static final int INTERNAL_PROGRESS_CONTAINER_ID = 0x00ff0002; + static final int INTERNAL_LIST_CONTAINER_ID = 0x00ff0003; + // added for search view + static final int SEARCH_ID = 0x00ff0004; + + /** + * Creates new instance of this fragment + */ + public static SelectPublicKeyFragment newInstance(long[] preselectedKeyIds) { + SelectPublicKeyFragment frag = new SelectPublicKeyFragment(); + Bundle args = new Bundle(); + + args.putLongArray(ARG_PRESELECTED_KEY_IDS, preselectedKeyIds); + + frag.setArguments(args); + + return frag; + } + + @Override + public void onCreate(Bundle savedInstanceState) { + super.onCreate(savedInstanceState); + mSelectedMasterKeyIds = getArguments().getLongArray(ARG_PRESELECTED_KEY_IDS); + } + + /** + * Copied from ListFragment and added EditText for search on top of list. + * We do not use a custom layout here, because this breaks the progress bar functionality + * of ListFragment. + * + * @param inflater + * @param container + * @param savedInstanceState + * @return + */ + @Override + public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { + final Context context = getActivity(); + + FrameLayout root = new FrameLayout(context); + + // ------------------------------------------------------------------ + + LinearLayout pframe = new LinearLayout(context); + pframe.setId(INTERNAL_PROGRESS_CONTAINER_ID); + pframe.setOrientation(LinearLayout.VERTICAL); + pframe.setVisibility(View.GONE); + pframe.setGravity(Gravity.CENTER); + + ProgressBar progress = new ProgressBar(context, null, + android.R.attr.progressBarStyleLarge); + pframe.addView(progress, new FrameLayout.LayoutParams( + ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT)); + + root.addView(pframe, new FrameLayout.LayoutParams( + ViewGroup.LayoutParams.FILL_PARENT, ViewGroup.LayoutParams.FILL_PARENT)); + + // ------------------------------------------------------------------ + + FrameLayout lframe = new FrameLayout(context); + lframe.setId(INTERNAL_LIST_CONTAINER_ID); + + TextView tv = new TextView(getActivity()); + tv.setId(INTERNAL_EMPTY_ID); + tv.setGravity(Gravity.CENTER); + lframe.addView(tv, new FrameLayout.LayoutParams( + ViewGroup.LayoutParams.FILL_PARENT, ViewGroup.LayoutParams.FILL_PARENT)); + + // Added for search view: linearLayout, mSearchView + LinearLayout linearLayout = new LinearLayout(context); + linearLayout.setOrientation(LinearLayout.VERTICAL); + + mSearchView = new EditText(context); + mSearchView.setId(SEARCH_ID); + mSearchView.setHint(R.string.menu_search); + mSearchView.setCompoundDrawablesWithIntrinsicBounds( + getResources().getDrawable(R.drawable.ic_action_search), null, null, null); + + linearLayout.addView(mSearchView, new FrameLayout.LayoutParams( + ViewGroup.LayoutParams.FILL_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT)); + + ListView lv = new ListView(getActivity()); + lv.setId(android.R.id.list); + lv.setDrawSelectorOnTop(false); + linearLayout.addView(lv, new FrameLayout.LayoutParams( + ViewGroup.LayoutParams.FILL_PARENT, ViewGroup.LayoutParams.FILL_PARENT)); + + lframe.addView(linearLayout, new FrameLayout.LayoutParams( + ViewGroup.LayoutParams.FILL_PARENT, ViewGroup.LayoutParams.FILL_PARENT)); + + root.addView(lframe, new FrameLayout.LayoutParams( + ViewGroup.LayoutParams.FILL_PARENT, ViewGroup.LayoutParams.FILL_PARENT)); + + // ------------------------------------------------------------------ + + root.setLayoutParams(new FrameLayout.LayoutParams( + ViewGroup.LayoutParams.FILL_PARENT, ViewGroup.LayoutParams.FILL_PARENT)); + + return root; + } + + /** + * Define Adapter and Loader on create of Activity + */ + @Override + public void onActivityCreated(Bundle savedInstanceState) { + super.onActivityCreated(savedInstanceState); + + getListView().setChoiceMode(ListView.CHOICE_MODE_MULTIPLE); + + // Give some text to display if there is no data. In a real + // application this would come from a resource. + setEmptyText(getString(R.string.list_empty)); + + mSearchView.addTextChangedListener(this); + + mAdapter = new SelectKeyCursorAdapter(getActivity(), null, 0, getListView(), Id.type.public_key); + + setListAdapter(mAdapter); + + // Start out with a progress indicator. + setListShown(false); + + // Prepare the loader. Either re-connect with an existing one, + // or start a new one. + getLoaderManager().initLoader(0, null, this); + } + + /** + * Selects items based on master key ids in list view + * + * @param masterKeyIds + */ + private void preselectMasterKeyIds(long[] masterKeyIds) { + if (masterKeyIds != null) { + for (int i = 0; i < getListView().getCount(); ++i) { + long keyId = mAdapter.getMasterKeyId(i); + for (long masterKeyId : masterKeyIds) { + if (keyId == masterKeyId) { + getListView().setItemChecked(i, true); + break; + } + } + } + } + } + + /** + * Returns all selected master key ids + * + * @return + */ + public long[] getSelectedMasterKeyIds() { + // mListView.getCheckedItemIds() would give the row ids of the KeyRings not the master key + // ids! + Vector<Long> vector = new Vector<Long>(); + for (int i = 0; i < getListView().getCount(); ++i) { + if (getListView().isItemChecked(i)) { + vector.add(mAdapter.getMasterKeyId(i)); + } + } + + // convert to long array + long[] selectedMasterKeyIds = new long[vector.size()]; + for (int i = 0; i < vector.size(); ++i) { + selectedMasterKeyIds[i] = vector.get(i); + } + + return selectedMasterKeyIds; + } + + /** + * Returns all selected user ids + * + * @return + */ + public String[] getSelectedUserIds() { + Vector<String> userIds = new Vector<String>(); + for (int i = 0; i < getListView().getCount(); ++i) { + if (getListView().isItemChecked(i)) { + userIds.add((String) mAdapter.getUserId(i)); + } + } + + // make empty array to not return null + String userIdArray[] = new String[0]; + return userIds.toArray(userIdArray); + } + + @Override + public Loader<Cursor> onCreateLoader(int id, Bundle args) { + Uri baseUri = KeyRings.buildUnifiedKeyRingsUri(); + + // These are the rows that we will retrieve. + long now = new Date().getTime() / 1000; + String[] projection = new String[]{ + KeyRings._ID, + KeyRings.MASTER_KEY_ID, + UserIds.USER_ID, + "(SELECT COUNT(*) FROM " + Tables.KEYS + " AS k" + +" WHERE k." + Keys.MASTER_KEY_ID + " = " + + KeychainDatabase.Tables.KEYS + "." + Keys.MASTER_KEY_ID + + " AND k." + Keys.IS_REVOKED + " = '0'" + + " AND k." + Keys.CAN_ENCRYPT + " = '1'" + + ") AS " + SelectKeyCursorAdapter.PROJECTION_ROW_AVAILABLE, + "(SELECT COUNT(*) FROM " + Tables.KEYS + " AS k" + + " WHERE k." + Keys.MASTER_KEY_ID + " = " + + KeychainDatabase.Tables.KEYS + "." + Keys.MASTER_KEY_ID + + " AND k." + Keys.IS_REVOKED + " = '0'" + + " AND k." + Keys.CAN_ENCRYPT + " = '1'" + + " AND k." + Keys.CREATION + " <= '" + now + "'" + + " AND ( k." + Keys.EXPIRY + " IS NULL OR k." + Keys.EXPIRY + " >= '" + now + "' )" + + ") AS " + SelectKeyCursorAdapter.PROJECTION_ROW_VALID, }; + + String inMasterKeyList = null; + if (mSelectedMasterKeyIds != null && mSelectedMasterKeyIds.length > 0) { + inMasterKeyList = Tables.KEYS + "." + KeyRings.MASTER_KEY_ID + " IN ("; + for (int i = 0; i < mSelectedMasterKeyIds.length; ++i) { + if (i != 0) { + inMasterKeyList += ", "; + } + inMasterKeyList += DatabaseUtils.sqlEscapeString("" + mSelectedMasterKeyIds[i]); + } + inMasterKeyList += ")"; + } + + String orderBy = UserIds.USER_ID + " ASC"; + if (inMasterKeyList != null) { + // sort by selected master keys + orderBy = inMasterKeyList + " DESC, " + orderBy; + } + String where = null; + String whereArgs[] = null; + if (mCurQuery != null) { + where = UserIds.USER_ID + " LIKE ?"; + whereArgs = new String[]{"%" + mCurQuery + "%"}; + } + + // Now create and return a CursorLoader that will take care of + // creating a Cursor for the data being displayed. + return new CursorLoader(getActivity(), baseUri, projection, where, whereArgs, orderBy); + } + + @Override + public void onLoadFinished(Loader<Cursor> loader, Cursor data) { + // Swap the new cursor in. (The framework will take care of closing the + // old cursor once we return.) + mAdapter.setSearchQuery(mCurQuery); + mAdapter.swapCursor(data); + + // The list should now be shown. + if (isResumed()) { + setListShown(true); + } else { + setListShownNoAnimation(true); + } + + // preselect given master keys + preselectMasterKeyIds(mSelectedMasterKeyIds); + } + + @Override + public void onLoaderReset(Loader<Cursor> loader) { + // This is called when the last Cursor provided to onLoadFinished() + // above is about to be closed. We need to make sure we are no + // longer using it. + mAdapter.swapCursor(null); + } + + @Override + public void beforeTextChanged(CharSequence charSequence, int i, int i2, int i3) { + + } + + @Override + public void onTextChanged(CharSequence charSequence, int i, int i2, int i3) { + + } + + @Override + public void afterTextChanged(Editable editable) { + mCurQuery = !TextUtils.isEmpty(editable.toString()) ? editable.toString() : null; + getLoaderManager().restartLoader(0, null, this); + } +} |