package com.fsck.k9.activity; import java.util.ArrayList; import java.util.Collections; import java.util.Comparator; import java.util.List; import android.app.AlertDialog; import android.content.DialogInterface; import android.content.Intent; import android.os.Bundle; import android.os.Handler; import android.text.Editable; import android.text.TextWatcher; import android.util.Log; import com.actionbarsherlock.view.Menu; import com.actionbarsherlock.view.MenuItem; import com.actionbarsherlock.view.Window; import android.view.View; import android.widget.AdapterView; import android.widget.ArrayAdapter; import android.widget.EditText; import android.widget.Filter; import android.widget.ListView; import android.widget.TextView; import com.fsck.k9.Account; import com.fsck.k9.Account.FolderMode; import com.fsck.k9.K9; import com.fsck.k9.Preferences; import com.fsck.k9.R; import com.fsck.k9.controller.MessagingController; import com.fsck.k9.controller.MessagingListener; import com.fsck.k9.mail.Folder; import com.fsck.k9.mail.MessagingException; public class ChooseFolder extends K9ListActivity { public static final String EXTRA_ACCOUNT = "com.fsck.k9.ChooseFolder_account"; public static final String EXTRA_CUR_FOLDER = "com.fsck.k9.ChooseFolder_curfolder"; public static final String EXTRA_SEL_FOLDER = "com.fsck.k9.ChooseFolder_selfolder"; public static final String EXTRA_NEW_FOLDER = "com.fsck.k9.ChooseFolder_newfolder"; public static final String EXTRA_MESSAGE = "com.fsck.k9.ChooseFolder_message"; public static final String EXTRA_SHOW_CURRENT = "com.fsck.k9.ChooseFolder_showcurrent"; public static final String EXTRA_SHOW_FOLDER_NONE = "com.fsck.k9.ChooseFolder_showOptionNone"; public static final String EXTRA_SHOW_DISPLAYABLE_ONLY = "com.fsck.k9.ChooseFolder_showDisplayableOnly"; String mFolder; String mSelectFolder; Account mAccount; MessageReference mMessageReference; ArrayAdapter mAdapter; private ChooseFolderHandler mHandler = new ChooseFolderHandler(); String mHeldInbox = null; boolean mHideCurrentFolder = true; boolean mShowOptionNone = false; boolean mShowDisplayableOnly = false; /** * What folders to display.
* Initialized to whatever is configured * but can be overridden via {@link #onOptionsItemSelected(MenuItem)} * while this activity is showing. */ private Account.FolderMode mMode; /** * Current filter used by our ArrayAdapter.
* Created on the fly and invalidated if a new * set of folders is chosen via {@link #onOptionsItemSelected(MenuItem)} */ private FolderListFilter mMyFilter = null; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS); getListView().setFastScrollEnabled(true); getListView().setItemsCanFocus(false); getListView().setChoiceMode(ListView.CHOICE_MODE_NONE); Intent intent = getIntent(); String accountUuid = intent.getStringExtra(EXTRA_ACCOUNT); mAccount = Preferences.getPreferences(this).getAccount(accountUuid); mMessageReference = intent.getParcelableExtra(EXTRA_MESSAGE); mFolder = intent.getStringExtra(EXTRA_CUR_FOLDER); mSelectFolder = intent.getStringExtra(EXTRA_SEL_FOLDER); if (intent.getStringExtra(EXTRA_SHOW_CURRENT) != null) { mHideCurrentFolder = false; } if (intent.getStringExtra(EXTRA_SHOW_FOLDER_NONE) != null) { mShowOptionNone = true; } if (intent.getStringExtra(EXTRA_SHOW_DISPLAYABLE_ONLY) != null) { mShowDisplayableOnly = true; } if (mFolder == null) mFolder = ""; mAdapter = new ArrayAdapter(this, android.R.layout.simple_list_item_1) { private Filter myFilter = null; @Override public Filter getFilter() { if (myFilter == null) { myFilter = new FolderListFilter(this); } return myFilter; } }; setListAdapter(mAdapter); mMode = mAccount.getFolderTargetMode(); MessagingController.getInstance(getApplication()).listFolders(mAccount, false, mListener); this.getListView().setOnItemClickListener(new AdapterView.OnItemClickListener() { @Override public void onItemClick(AdapterView parent, View view, int position, long id) { Intent result = new Intent(); result.putExtra(EXTRA_ACCOUNT, mAccount.getUuid()); result.putExtra(EXTRA_CUR_FOLDER, mFolder); String destFolderName = (String)((TextView)view).getText(); if (mHeldInbox != null && getString(R.string.special_mailbox_name_inbox).equals(destFolderName)) { destFolderName = mHeldInbox; } result.putExtra(EXTRA_NEW_FOLDER, destFolderName); result.putExtra(EXTRA_MESSAGE, mMessageReference); setResult(RESULT_OK, result); finish(); } }); } class ChooseFolderHandler extends Handler { private static final int MSG_PROGRESS = 1; private static final int MSG_SET_SELECTED_FOLDER = 2; @Override public void handleMessage(android.os.Message msg) { switch (msg.what) { case MSG_PROGRESS: { setSupportProgressBarIndeterminateVisibility(msg.arg1 != 0); break; } case MSG_SET_SELECTED_FOLDER: { getListView().setSelection(msg.arg1); break; } } } public void progress(boolean progress) { android.os.Message msg = new android.os.Message(); msg.what = MSG_PROGRESS; msg.arg1 = progress ? 1 : 0; sendMessage(msg); } public void setSelectedFolder(int position) { android.os.Message msg = new android.os.Message(); msg.what = MSG_SET_SELECTED_FOLDER; msg.arg1 = position; sendMessage(msg); } } @Override public boolean onCreateOptionsMenu(Menu menu) { super.onCreateOptionsMenu(menu); getSupportMenuInflater().inflate(R.menu.folder_select_option, menu); return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) { case R.id.display_1st_class: { setDisplayMode(FolderMode.FIRST_CLASS); return true; } case R.id.display_1st_and_2nd_class: { setDisplayMode(FolderMode.FIRST_AND_SECOND_CLASS); return true; } case R.id.display_not_second_class: { setDisplayMode(FolderMode.NOT_SECOND_CLASS); return true; } case R.id.display_all: { setDisplayMode(FolderMode.ALL); return true; } case R.id.list_folders: { onRefresh(); return true; } case R.id.filter_folders: { onEnterFilter(); return true; } default: { return super.onOptionsItemSelected(item); } } } private void onRefresh() { MessagingController.getInstance(getApplication()).listFolders(mAccount, true, mListener); } /** * Show an alert with an input-field for a filter-expression. * Filter {@link #mAdapter} with the user-input. */ private void onEnterFilter() { final AlertDialog.Builder filterAlert = new AlertDialog.Builder(this); final EditText input = new EditText(this); input.addTextChangedListener(new TextWatcher() { @Override public void onTextChanged(CharSequence s, int start, int before, int count) { mAdapter.getFilter().filter(input.getText().toString()); } @Override public void beforeTextChanged(CharSequence s, int start, int count, int after) { /* not used */ } @Override public void afterTextChanged(Editable s) { /* not used */ } }); input.setHint(R.string.folder_list_filter_hint); filterAlert.setView(input); String okay = getString(R.string.okay_action); filterAlert.setPositiveButton(okay, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int whichButton) { String value = input.getText().toString().trim(); mAdapter.getFilter().filter(value); } }); String cancel = getString(R.string.cancel_action); filterAlert.setNegativeButton(cancel, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int whichButton) { mAdapter.getFilter().filter(""); } }); filterAlert.show(); } private void setDisplayMode(FolderMode aMode) { mMode = aMode; // invalidate the current filter as it is working on an inval if (mMyFilter != null) { mMyFilter.invalidate(); } //re-populate the list MessagingController.getInstance(getApplication()).listFolders(mAccount, false, mListener); } private MessagingListener mListener = new MessagingListener() { @Override public void listFoldersStarted(Account account) { if (!account.equals(mAccount)) { return; } mHandler.progress(true); } @Override public void listFoldersFailed(Account account, String message) { if (!account.equals(mAccount)) { return; } mHandler.progress(false); } @Override public void listFoldersFinished(Account account) { if (!account.equals(mAccount)) { return; } mHandler.progress(false); } @Override public void listFolders(Account account, Folder[] folders) { if (!account.equals(mAccount)) { return; } Account.FolderMode aMode = mMode; Preferences prefs = Preferences.getPreferences(getApplication().getApplicationContext()); List newFolders = new ArrayList(); List topFolders = new ArrayList(); for (Folder folder : folders) { String name = folder.getName(); // Inbox needs to be compared case-insensitively if (mHideCurrentFolder && (name.equals(mFolder) || ( mAccount.getInboxFolderName().equalsIgnoreCase(mFolder) && mAccount.getInboxFolderName().equalsIgnoreCase(name)))) { continue; } try { folder.refresh(prefs); Folder.FolderClass fMode = folder.getDisplayClass(); if ((aMode == Account.FolderMode.FIRST_CLASS && fMode != Folder.FolderClass.FIRST_CLASS) || ( aMode == Account.FolderMode.FIRST_AND_SECOND_CLASS && fMode != Folder.FolderClass.FIRST_CLASS && fMode != Folder.FolderClass.SECOND_CLASS) || ( aMode == Account.FolderMode.NOT_SECOND_CLASS && fMode == Folder.FolderClass.SECOND_CLASS)) { continue; } } catch (MessagingException me) { Log.e(K9.LOG_TAG, "Couldn't get prefs to check for displayability of folder " + folder.getName(), me); } if (folder.isInTopGroup()) { topFolders.add(name); } else { newFolders.add(name); } } final Comparator comparator = new Comparator() { @Override public int compare(String s1, String s2) { int ret = s1.compareToIgnoreCase(s2); return (ret != 0) ? ret : s1.compareTo(s2); } }; Collections.sort(topFolders, comparator); Collections.sort(newFolders, comparator); List localFolders = new ArrayList(newFolders.size() + topFolders.size() + ((mShowOptionNone) ? 1 : 0)); if (mShowOptionNone) { localFolders.add(K9.FOLDER_NONE); } localFolders.addAll(topFolders); localFolders.addAll(newFolders); int selectedFolder = -1; /* * We're not allowed to change the adapter from a background thread, so we collect the * folder names and update the adapter in the UI thread (see finally block). */ final List folderList = new ArrayList(); try { int position = 0; for (String name : localFolders) { if (mAccount.getInboxFolderName().equalsIgnoreCase(name)) { folderList.add(getString(R.string.special_mailbox_name_inbox)); mHeldInbox = name; } else if (!K9.ERROR_FOLDER_NAME.equals(name) && !account.getOutboxFolderName().equals(name)) { folderList.add(name); } if (mSelectFolder != null) { /* * Never select EXTRA_CUR_FOLDER (mFolder) if EXTRA_SEL_FOLDER * (mSelectedFolder) was provided. */ if (name.equals(mSelectFolder)) { selectedFolder = position; } } else if (name.equals(mFolder) || ( mAccount.getInboxFolderName().equalsIgnoreCase(mFolder) && mAccount.getInboxFolderName().equalsIgnoreCase(name))) { selectedFolder = position; } position++; } } finally { runOnUiThread(new Runnable() { @Override public void run() { // Now we're in the UI-thread, we can safely change the contents of the adapter. mAdapter.clear(); for (String folderName: folderList) { mAdapter.add(folderName); } mAdapter.notifyDataSetChanged(); /* * Only enable the text filter after the list has been * populated to avoid possible race conditions because our * FolderListFilter isn't really thread-safe. */ getListView().setTextFilterEnabled(true); } }); } if (selectedFolder != -1) { mHandler.setSelectedFolder(selectedFolder); } } }; }