diff options
Diffstat (limited to 'OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/KeyListFragment.java')
| -rw-r--r-- | OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/KeyListFragment.java | 700 |
1 files changed, 700 insertions, 0 deletions
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/KeyListFragment.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/KeyListFragment.java new file mode 100644 index 000000000..3e2c96464 --- /dev/null +++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/KeyListFragment.java @@ -0,0 +1,700 @@ +/* + * Copyright (C) 2013-2014 Dominik Schürmann <dominik@dominikschuermann.de> + * + * 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.sufficientlysecure.keychain.ui; + +import android.annotation.SuppressLint; +import android.annotation.TargetApi; +import android.content.Context; +import android.content.Intent; +import android.database.Cursor; +import android.graphics.Color; +import android.net.Uri; +import android.os.Build; +import android.os.Bundle; +import android.os.Handler; +import android.os.Message; +import android.os.Messenger; +import android.support.v4.app.Fragment; +import android.support.v4.app.LoaderManager; +import android.support.v4.content.CursorLoader; +import android.support.v4.content.Loader; +import android.support.v4.view.MenuItemCompat; +import android.support.v7.app.ActionBarActivity; +import android.support.v7.widget.SearchView; +import android.text.TextUtils; +import android.view.ActionMode; +import android.view.LayoutInflater; +import android.view.Menu; +import android.view.MenuInflater; +import android.view.MenuItem; +import android.view.View; +import android.view.View.OnClickListener; +import android.view.ViewGroup; +import android.view.animation.AnimationUtils; +import android.widget.AbsListView.MultiChoiceModeListener; +import android.widget.AdapterView; +import android.widget.Button; +import android.widget.FrameLayout; +import android.widget.ImageView; +import android.widget.ListView; +import android.widget.TextView; +import com.beardedhen.androidbootstrap.BootstrapButton; +import org.sufficientlysecure.keychain.Constants; +import org.sufficientlysecure.keychain.Id; +import org.sufficientlysecure.keychain.R; +import org.sufficientlysecure.keychain.helper.ExportHelper; +import org.sufficientlysecure.keychain.pgp.PgpKeyHelper; +import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings; +import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRingData; +import org.sufficientlysecure.keychain.ui.adapter.HighlightQueryCursorAdapter; +import org.sufficientlysecure.keychain.ui.dialog.DeleteKeyDialogFragment; +import org.sufficientlysecure.keychain.util.Log; +import se.emilsjolander.stickylistheaders.ApiLevelTooLowException; +import se.emilsjolander.stickylistheaders.StickyListHeadersAdapter; +import se.emilsjolander.stickylistheaders.StickyListHeadersListView; + +import java.util.HashMap; + +/** + * Public key list with sticky list headers. It does _not_ extend ListFragment because it uses + * StickyListHeaders library which does not extend upon ListView. + */ +public class KeyListFragment extends Fragment + implements SearchView.OnQueryTextListener, AdapterView.OnItemClickListener, + LoaderManager.LoaderCallbacks<Cursor> { + + private KeyListAdapter mAdapter; + private StickyListHeadersListView mStickyList; + + // rebuild functionality of ListFragment, http://stackoverflow.com/a/12504097 + boolean mListShown; + View mProgressContainer; + View mListContainer; + + private String mCurQuery; + private SearchView mSearchView; + // empty list layout + private BootstrapButton mButtonEmptyCreate; + private BootstrapButton mButtonEmptyImport; + + + /** + * Load custom layout with StickyListView from library + */ + @Override + public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { + View root = inflater.inflate(R.layout.key_list_fragment, container, false); + + mStickyList = (StickyListHeadersListView) root.findViewById(R.id.key_list_list); + mStickyList.setOnItemClickListener(this); + + + // empty view + mButtonEmptyCreate = (BootstrapButton) root.findViewById(R.id.key_list_empty_button_create); + mButtonEmptyCreate.setOnClickListener(new OnClickListener() { + + @Override + public void onClick(View v) { + Intent intent = new Intent(getActivity(), EditKeyActivity.class); + intent.setAction(EditKeyActivity.ACTION_CREATE_KEY); + intent.putExtra(EditKeyActivity.EXTRA_GENERATE_DEFAULT_KEYS, true); + intent.putExtra(EditKeyActivity.EXTRA_USER_IDS, ""); // show user id view + startActivityForResult(intent, 0); + } + }); + mButtonEmptyImport = (BootstrapButton) root.findViewById(R.id.key_list_empty_button_import); + mButtonEmptyImport.setOnClickListener(new OnClickListener() { + + @Override + public void onClick(View v) { + Intent intent = new Intent(getActivity(), ImportKeysActivity.class); + intent.setAction(ImportKeysActivity.ACTION_IMPORT_KEY_FROM_FILE); + startActivityForResult(intent, 0); + } + }); + + // rebuild functionality of ListFragment, http://stackoverflow.com/a/12504097 + mListContainer = root.findViewById(R.id.key_list_list_container); + mProgressContainer = root.findViewById(R.id.key_list_progress_container); + mListShown = true; + + return root; + } + + /** + * Define Adapter and Loader on create of Activity + */ + @SuppressLint("NewApi") + @Override + public void onActivityCreated(Bundle savedInstanceState) { + super.onActivityCreated(savedInstanceState); + + mStickyList.setOnItemClickListener(this); + mStickyList.setAreHeadersSticky(true); + mStickyList.setDrawingListUnderStickyHeader(false); + mStickyList.setFastScrollEnabled(true); + try { + mStickyList.setFastScrollAlwaysVisible(true); + } catch (ApiLevelTooLowException e) { + } + + /* + * ActionBarSherlock does not support MultiChoiceModeListener. Thus multi-selection is only + * available for Android >= 3.0 + */ + if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) { + mStickyList.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE_MODAL); + mStickyList.getWrappedList().setMultiChoiceModeListener(new MultiChoiceModeListener() { + + @Override + public boolean onCreateActionMode(ActionMode mode, Menu menu) { + android.view.MenuInflater inflater = getActivity().getMenuInflater(); + inflater.inflate(R.menu.key_list_multi, menu); + return true; + } + + @Override + public boolean onPrepareActionMode(ActionMode mode, Menu menu) { + return false; + } + + @Override + public boolean onActionItemClicked(ActionMode mode, MenuItem item) { + + // get IDs for checked positions as long array + long[] ids; + + switch (item.getItemId()) { + case R.id.menu_key_list_multi_encrypt: { + ids = mAdapter.getCurrentSelectedMasterKeyIds(); + encrypt(mode, ids); + break; + } + case R.id.menu_key_list_multi_delete: { + ids = mAdapter.getCurrentSelectedMasterKeyIds(); + showDeleteKeyDialog(mode, ids); + break; + } + case R.id.menu_key_list_multi_export: { + ids = mAdapter.getCurrentSelectedMasterKeyIds(); + ExportHelper mExportHelper = new ExportHelper((ActionBarActivity) getActivity()); + mExportHelper.showExportKeysDialog( + ids, Constants.Path.APP_DIR_FILE, mAdapter.isAnySecretSelected()); + break; + } + case R.id.menu_key_list_multi_select_all: { + // select all + for (int i = 0; i < mStickyList.getCount(); i++) { + mStickyList.setItemChecked(i, true); + } + break; + } + } + return true; + } + + @Override + public void onDestroyActionMode(ActionMode mode) { + mAdapter.clearSelection(); + } + + @Override + public void onItemCheckedStateChanged(ActionMode mode, int position, long id, + boolean checked) { + if (checked) { + mAdapter.setNewSelection(position, checked); + } else { + mAdapter.removeSelection(position); + } + int count = mStickyList.getCheckedItemCount(); + String keysSelected = getResources().getQuantityString( + R.plurals.key_list_selected_keys, count, count); + mode.setTitle(keysSelected); + } + + }); + } + + // We have a menu item to show in action bar. + setHasOptionsMenu(true); + + // NOTE: Not supported by StickyListHeader, but reimplemented here + // Start out with a progress indicator. + setListShown(false); + + // Create an empty adapter we will use to display the loaded data. + mAdapter = new KeyListAdapter(getActivity(), null, Id.type.public_key); + mStickyList.setAdapter(mAdapter); + + // Prepare the loader. Either re-connect with an existing one, + // or start a new one. + getLoaderManager().initLoader(0, null, this); + } + + // These are the rows that we will retrieve. + static final String[] PROJECTION = new String[]{ + KeyRings._ID, + KeyRings.MASTER_KEY_ID, + KeyRings.USER_ID, + KeyRings.IS_REVOKED, + KeyRings.VERIFIED, + KeyRings.HAS_SECRET + }; + + static final int INDEX_MASTER_KEY_ID = 1; + static final int INDEX_USER_ID = 2; + static final int INDEX_IS_REVOKED = 3; + static final int INDEX_VERIFIED = 4; + static final int INDEX_HAS_SECRET = 5; + + @Override + public Loader<Cursor> onCreateLoader(int id, Bundle args) { + // This is called when a new Loader needs to be created. This + // sample only has one Loader, so we don't care about the ID. + Uri baseUri = KeyRings.buildUnifiedKeyRingsUri(); + String where = null; + String whereArgs[] = null; + if (mCurQuery != null) { + where = KeyRings.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, null); + } + + @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); + + mStickyList.setAdapter(mAdapter); + + // this view is made visible if no data is available + mStickyList.setEmptyView(getActivity().findViewById(R.id.key_list_empty)); + + // NOTE: Not supported by StickyListHeader, but reimplemented here + // The list should now be shown. + if (isResumed()) { + setListShown(true); + } else { + setListShownNoAnimation(true); + } + } + + @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); + } + + /** + * On click on item, start key view activity + */ + @Override + public void onItemClick(AdapterView<?> adapterView, View view, int position, long id) { + Intent viewIntent = null; + if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN) { + viewIntent = new Intent(getActivity(), ViewKeyActivity.class); + } else { + viewIntent = new Intent(getActivity(), ViewKeyActivityJB.class); + } + viewIntent.setData( + KeyRings.buildGenericKeyRingUri(Long.toString(mAdapter.getMasterKeyId(position)))); + startActivity(viewIntent); + } + + @TargetApi(11) + protected void encrypt(ActionMode mode, long[] masterKeyIds) { + Intent intent = new Intent(getActivity(), EncryptActivity.class); + intent.setAction(EncryptActivity.ACTION_ENCRYPT); + intent.putExtra(EncryptActivity.EXTRA_ENCRYPTION_KEY_IDS, masterKeyIds); + // used instead of startActivity set actionbar based on callingPackage + startActivityForResult(intent, 0); + + mode.finish(); + } + + /** + * Show dialog to delete key + * + * @param masterKeyIds + */ + @TargetApi(11) + // TODO: this method needs an overhaul to handle both public and secret keys gracefully! + public void showDeleteKeyDialog(final ActionMode mode, long[] masterKeyIds) { + // Message is received after key is deleted + Handler returnHandler = new Handler() { + @Override + public void handleMessage(Message message) { + if (message.what == DeleteKeyDialogFragment.MESSAGE_OKAY) { + mode.finish(); + } + } + }; + + // Create a new Messenger for the communication back + Messenger messenger = new Messenger(returnHandler); + + DeleteKeyDialogFragment deleteKeyDialog = DeleteKeyDialogFragment.newInstance(messenger, + masterKeyIds); + + deleteKeyDialog.show(getActivity().getSupportFragmentManager(), "deleteKeyDialog"); + } + + + @Override + public void onCreateOptionsMenu(final Menu menu, final MenuInflater inflater) { + // Get the searchview + MenuItem searchItem = menu.findItem(R.id.menu_key_list_search); + mSearchView = (SearchView) MenuItemCompat.getActionView(searchItem); + + // Execute this when searching + mSearchView.setOnQueryTextListener(this); + + // Erase search result without focus + MenuItemCompat.setOnActionExpandListener(searchItem, new MenuItemCompat.OnActionExpandListener() { + @Override + public boolean onMenuItemActionExpand(MenuItem item) { + return true; + } + + @Override + public boolean onMenuItemActionCollapse(MenuItem item) { + mCurQuery = null; + mSearchView.setQuery("", true); + getLoaderManager().restartLoader(0, null, KeyListFragment.this); + return true; + } + }); + + super.onCreateOptionsMenu(menu, inflater); + } + + @Override + public boolean onQueryTextSubmit(String s) { + return true; + } + + @Override + public boolean onQueryTextChange(String s) { + // Called when the action bar search text has changed. Update + // the search filter, and restart the loader to do a new query + // with this filter. + mCurQuery = !TextUtils.isEmpty(s) ? s : null; + getLoaderManager().restartLoader(0, null, this); + return true; + } + + // rebuild functionality of ListFragment, http://stackoverflow.com/a/12504097 + public void setListShown(boolean shown, boolean animate) { + if (mListShown == shown) { + return; + } + mListShown = shown; + if (shown) { + if (animate) { + mProgressContainer.startAnimation(AnimationUtils.loadAnimation( + getActivity(), android.R.anim.fade_out)); + mListContainer.startAnimation(AnimationUtils.loadAnimation( + getActivity(), android.R.anim.fade_in)); + } + mProgressContainer.setVisibility(View.GONE); + mListContainer.setVisibility(View.VISIBLE); + } else { + if (animate) { + mProgressContainer.startAnimation(AnimationUtils.loadAnimation( + getActivity(), android.R.anim.fade_in)); + mListContainer.startAnimation(AnimationUtils.loadAnimation( + getActivity(), android.R.anim.fade_out)); + } + mProgressContainer.setVisibility(View.VISIBLE); + mListContainer.setVisibility(View.INVISIBLE); + } + } + + // rebuild functionality of ListFragment, http://stackoverflow.com/a/12504097 + public void setListShown(boolean shown) { + setListShown(shown, true); + } + + // rebuild functionality of ListFragment, http://stackoverflow.com/a/12504097 + public void setListShownNoAnimation(boolean shown) { + setListShown(shown, false); + } + + /** + * Implements StickyListHeadersAdapter from library + */ + private class KeyListAdapter extends HighlightQueryCursorAdapter implements StickyListHeadersAdapter { + private LayoutInflater mInflater; + + private HashMap<Integer, Boolean> mSelection = new HashMap<Integer, Boolean>(); + + public KeyListAdapter(Context context, Cursor c, int flags) { + super(context, c, flags); + + mInflater = LayoutInflater.from(context); + } + + @Override + public Cursor swapCursor(Cursor newCursor) { + return super.swapCursor(newCursor); + } + + /** + * Bind cursor data to the item list view + * <p/> + * NOTE: CursorAdapter already implements the ViewHolder pattern in its getView() method. + * Thus no ViewHolder is required here. + */ + @Override + public void bindView(View view, Context context, Cursor cursor) { + + { // set name and stuff, common to both key types + TextView mainUserId = (TextView) view.findViewById(R.id.mainUserId); + TextView mainUserIdRest = (TextView) view.findViewById(R.id.mainUserIdRest); + + String userId = cursor.getString(INDEX_USER_ID); + String[] userIdSplit = PgpKeyHelper.splitUserId(userId); + if (userIdSplit[0] != null) { + mainUserId.setText(highlightSearchQuery(userIdSplit[0])); + } else { + mainUserId.setText(R.string.user_id_no_name); + } + if (userIdSplit[1] != null) { + mainUserIdRest.setText(highlightSearchQuery(userIdSplit[1])); + mainUserIdRest.setVisibility(View.VISIBLE); + } else { + mainUserIdRest.setVisibility(View.GONE); + } + } + + { // set edit button and revoked info, specific by key type + View statusDivider = (View) view.findViewById(R.id.status_divider); + FrameLayout statusLayout = (FrameLayout) view.findViewById(R.id.status_layout); + Button button = (Button) view.findViewById(R.id.edit); + TextView revoked = (TextView) view.findViewById(R.id.revoked); + ImageView verified = (ImageView) view.findViewById(R.id.verified); + + if (cursor.getInt(KeyListFragment.INDEX_HAS_SECRET) != 0) { + // this is a secret key - show the edit button + statusDivider.setVisibility(View.VISIBLE); + statusLayout.setVisibility(View.VISIBLE); + revoked.setVisibility(View.GONE); + verified.setVisibility(View.GONE); + button.setVisibility(View.VISIBLE); + + final long id = cursor.getLong(INDEX_MASTER_KEY_ID); + button.setOnClickListener(new OnClickListener() { + public void onClick(View view) { + Intent editIntent = new Intent(getActivity(), EditKeyActivity.class); + editIntent.setData(KeyRingData.buildSecretKeyRingUri(Long.toString(id))); + editIntent.setAction(EditKeyActivity.ACTION_EDIT_KEY); + startActivityForResult(editIntent, 0); + } + }); + } else { + // this is a public key - hide the edit button, show if it's revoked + statusDivider.setVisibility(View.GONE); + button.setVisibility(View.GONE); + + boolean isRevoked = cursor.getInt(INDEX_IS_REVOKED) > 0; + if(isRevoked) { + statusLayout.setVisibility(isRevoked ? View.VISIBLE : View.GONE); + revoked.setVisibility(isRevoked ? View.VISIBLE : View.GONE); + verified.setVisibility(View.GONE); + } else { + boolean isVerified = cursor.getInt(INDEX_VERIFIED) > 0; + statusLayout.setVisibility(isVerified ? View.VISIBLE : View.GONE); + revoked.setVisibility(View.GONE); + verified.setVisibility(isVerified ? View.VISIBLE : View.GONE); + } + } + } + + } + + public boolean isSecretAvailable(int id) { + if (!mCursor.moveToPosition(id)) { + throw new IllegalStateException("couldn't move cursor to position " + id); + } + + return mCursor.getInt(INDEX_HAS_SECRET) != 0; + } + public long getMasterKeyId(int id) { + if (!mCursor.moveToPosition(id)) { + throw new IllegalStateException("couldn't move cursor to position " + id); + } + + return mCursor.getLong(INDEX_MASTER_KEY_ID); + } + + @Override + public View newView(Context context, Cursor cursor, ViewGroup parent) { + return mInflater.inflate(R.layout.key_list_item, parent, false); + } + + /** + * Creates a new header view and binds the section headers to it. It uses the ViewHolder + * pattern. Most functionality is similar to getView() from Android's CursorAdapter. + * <p/> + * NOTE: The variables mDataValid and mCursor are available due to the super class + * CursorAdapter. + */ + @Override + public View getHeaderView(int position, View convertView, ViewGroup parent) { + HeaderViewHolder holder; + if (convertView == null) { + holder = new HeaderViewHolder(); + convertView = mInflater.inflate(R.layout.key_list_header, parent, false); + holder.mText = (TextView) convertView.findViewById(R.id.stickylist_header_text); + holder.mCount = (TextView) convertView.findViewById(R.id.contacts_num); + convertView.setTag(holder); + } else { + holder = (HeaderViewHolder) convertView.getTag(); + } + + if (!mDataValid) { + // no data available at this point + Log.d(Constants.TAG, "getHeaderView: No data available at this point!"); + return convertView; + } + + if (!mCursor.moveToPosition(position)) { + throw new IllegalStateException("couldn't move cursor to position " + position); + } + + if (mCursor.getInt(KeyListFragment.INDEX_HAS_SECRET) != 0) { + { // set contact count + int num = mCursor.getCount(); + String contactsTotal = getResources().getQuantityString(R.plurals.n_contacts, num, num); + holder.mCount.setText(contactsTotal); + holder.mCount.setVisibility(View.VISIBLE); + } + + holder.mText.setText(convertView.getResources().getString(R.string.my_keys)); + return convertView; + } + + // set header text as first char in user id + String userId = mCursor.getString(KeyListFragment.INDEX_USER_ID); + String headerText = convertView.getResources().getString(R.string.user_id_no_name); + if (userId != null && userId.length() > 0) { + headerText = "" + userId.subSequence(0, 1).charAt(0); + } + holder.mText.setText(headerText); + holder.mCount.setVisibility(View.GONE); + return convertView; + } + + /** + * Header IDs should be static, position=1 should always return the same Id that is. + */ + @Override + public long getHeaderId(int position) { + if (!mDataValid) { + // no data available at this point + Log.d(Constants.TAG, "getHeaderView: No data available at this point!"); + return -1; + } + + if (!mCursor.moveToPosition(position)) { + throw new IllegalStateException("couldn't move cursor to position " + position); + } + + // early breakout: all secret keys are assigned id 0 + if (mCursor.getInt(KeyListFragment.INDEX_HAS_SECRET) != 0) { + return 1L; + } + // otherwise, return the first character of the name as ID + String userId = mCursor.getString(KeyListFragment.INDEX_USER_ID); + if (userId != null && userId.length() > 0) { + return userId.charAt(0); + } else { + return Long.MAX_VALUE; + } + } + + class HeaderViewHolder { + TextView mText; + TextView mCount; + } + + /** + * -------------------------- MULTI-SELECTION METHODS -------------- + */ + public void setNewSelection(int position, boolean value) { + mSelection.put(position, value); + notifyDataSetChanged(); + } + + public boolean isAnySecretSelected() { + for (int pos : mSelection.keySet()) { + if(mAdapter.isSecretAvailable(pos)) + return true; + } + return false; + } + + public long[] getCurrentSelectedMasterKeyIds() { + long[] ids = new long[mSelection.size()]; + int i = 0; + // get master key ids + for (int pos : mSelection.keySet()) { + ids[i++] = mAdapter.getMasterKeyId(pos); + } + return ids; + } + + public void removeSelection(int position) { + mSelection.remove(position); + notifyDataSetChanged(); + } + + public void clearSelection() { + mSelection.clear(); + notifyDataSetChanged(); + } + + @Override + public View getView(int position, View convertView, ViewGroup parent) { + // let the adapter handle setting up the row views + View v = super.getView(position, convertView, parent); + + /** + * Change color for multi-selection + */ + if (mSelection.get(position) != null) { + // selected position color + v.setBackgroundColor(parent.getResources().getColor(R.color.emphasis)); + } else { + // default color + v.setBackgroundColor(Color.TRANSPARENT); + } + + return v; + } + + } + +} |