+/* ownCloud Android client application
+ * Copyright (C) 2012-2013 ownCloud Inc.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2,
+ * as published by the Free Software Foundation.
+ *
+ * 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 com.owncloud.android.ui.activity;
+
+import java.io.File;
+
+import android.accounts.Account;
+import android.content.Intent;
+import android.os.AsyncTask;
+import android.os.Bundle;
+import android.os.Environment;
+import android.support.v4.app.DialogFragment;
+import android.view.View;
+import android.view.View.OnClickListener;
+import android.view.ViewGroup;
+import android.widget.ArrayAdapter;
+import android.widget.TextView;
+
+import com.actionbarsherlock.app.ActionBar;
+import com.actionbarsherlock.app.ActionBar.OnNavigationListener;
+import com.actionbarsherlock.view.MenuItem;
+import com.owncloud.android.Log_OC;
+import com.owncloud.android.R;
+import com.owncloud.android.ui.CustomButton;
+import com.owncloud.android.ui.dialog.IndeterminateProgressDialog;
+import com.owncloud.android.ui.fragment.ConfirmationDialogFragment;
+import com.owncloud.android.ui.fragment.LocalFileListFragment;
+import com.owncloud.android.ui.fragment.ConfirmationDialogFragment.ConfirmationDialogFragmentListener;
+import com.owncloud.android.utils.FileStorageUtils;
+
+
+/**
+ * Displays local files and let the user choose what of them wants to upload
+ * to the current ownCloud account
+ *
+ * @author David A. Velasco
+ *
+ */
+
+public class UploadFilesActivity extends FileActivity implements
+ LocalFileListFragment.ContainerActivity, OnNavigationListener, OnClickListener, ConfirmationDialogFragmentListener {
+
+ private ArrayAdapter<String> mDirectories;
+ private File mCurrentDir = null;
+ private LocalFileListFragment mFileListFragment;
+ private CustomButton mCancelBtn;
+ private CustomButton mUploadBtn;
+ private Account mAccountOnCreation;
+ private DialogFragment mCurrentDialog;
+
+ public static final String EXTRA_CHOSEN_FILES = UploadFilesActivity.class.getCanonicalName() + ".EXTRA_CHOSEN_FILES";
+
+ public static final int RESULT_OK_AND_MOVE = RESULT_FIRST_USER;
+
+ private static final String KEY_DIRECTORY_PATH = UploadFilesActivity.class.getCanonicalName() + ".KEY_DIRECTORY_PATH";
+ private static final String TAG = "UploadFilesActivity";
+ private static final String WAIT_DIALOG_TAG = "WAIT";
+ private static final String QUERY_TO_MOVE_DIALOG_TAG = "QUERY_TO_MOVE";
+
+
+ @Override
+ public void onCreate(Bundle savedInstanceState) {
+ Log_OC.d(TAG, "onCreate() start");
+ super.onCreate(savedInstanceState);
+
+ if(savedInstanceState != null) {
+ mCurrentDir = new File(savedInstanceState.getString(UploadFilesActivity.KEY_DIRECTORY_PATH));
+ } else {
+ mCurrentDir = Environment.getExternalStorageDirectory();
+ }
+
+ mAccountOnCreation = getAccount();
+
+ /// USER INTERFACE
+
+ // Drop-down navigation
+ mDirectories = new CustomArrayAdapter<String>(this, R.layout.sherlock_spinner_dropdown_item);
+ File currDir = mCurrentDir;
+ while(currDir != null && currDir.getParentFile() != null) {
+ mDirectories.add(currDir.getName());
+ currDir = currDir.getParentFile();
+ }
+ mDirectories.add(File.separator);
+
+ // Inflate and set the layout view
+ setContentView(R.layout.upload_files_layout);
+ mFileListFragment = (LocalFileListFragment) getSupportFragmentManager().findFragmentById(R.id.local_files_list);
+
+
+ // Set input controllers
+ mCancelBtn = (CustomButton) findViewById(R.id.upload_files_btn_cancel);
+ mCancelBtn.setOnClickListener(this);
+ mUploadBtn = (CustomButton) findViewById(R.id.upload_files_btn_upload);
+ mUploadBtn.setOnClickListener(this);
+
+
+ // Action bar setup
+ ActionBar actionBar = getSupportActionBar();
+ actionBar.setHomeButtonEnabled(true); // mandatory since Android ICS, according to the official documentation
+ actionBar.setDisplayHomeAsUpEnabled(mCurrentDir != null && mCurrentDir.getName() != null);
+ actionBar.setDisplayShowTitleEnabled(false);
+ actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_LIST);
+ actionBar.setListNavigationCallbacks(mDirectories, this);
+
+ // wait dialog
+ if (mCurrentDialog != null) {
+ mCurrentDialog.dismiss();
+ mCurrentDialog = null;
+ }
+
+ Log_OC.d(TAG, "onCreate() end");
+ }
+
+
+ @Override
+ public boolean onOptionsItemSelected(MenuItem item) {
+ boolean retval = true;
+ switch (item.getItemId()) {
+ case android.R.id.home: {
+ if(mCurrentDir != null && mCurrentDir.getParentFile() != null){
+ onBackPressed();
+ }
+ break;
+ }
+ default:
+ retval = super.onOptionsItemSelected(item);
+ }
+ return retval;
+ }
+
+
+ @Override
+ public boolean onNavigationItemSelected(int itemPosition, long itemId) {
+ int i = itemPosition;
+ while (i-- != 0) {
+ onBackPressed();
+ }
+ // the next operation triggers a new call to this method, but it's necessary to
+ // ensure that the name exposed in the action bar is the current directory when the
+ // user selected it in the navigation list
+ if (itemPosition != 0)
+ getSupportActionBar().setSelectedNavigationItem(0);
+ return true;
+ }
+
+
+ @Override
+ public void onBackPressed() {
+ if (mDirectories.getCount() <= 1) {
+ finish();
+ return;
+ }
+ popDirname();
+ mFileListFragment.onNavigateUp();
+ mCurrentDir = mFileListFragment.getCurrentDirectory();
+
+ if(mCurrentDir.getParentFile() == null){
+ ActionBar actionBar = getSupportActionBar();
+ actionBar.setDisplayHomeAsUpEnabled(false);
+ }
+ }
+
+
+ @Override
+ protected void onSaveInstanceState(Bundle outState) {
+ // responsibility of restore is preferred in onCreate() before than in onRestoreInstanceState when there are Fragments involved
+ Log_OC.d(TAG, "onSaveInstanceState() start");
+ super.onSaveInstanceState(outState);
+ outState.putString(UploadFilesActivity.KEY_DIRECTORY_PATH, mCurrentDir.getAbsolutePath());
+ Log_OC.d(TAG, "onSaveInstanceState() end");
+ }
+
+
+ /**
+ * Pushes a directory to the drop down list
+ * @param directory to push
+ * @throws IllegalArgumentException If the {@link File#isDirectory()} returns false.
+ */
+ public void pushDirname(File directory) {
+ if(!directory.isDirectory()){
+ throw new IllegalArgumentException("Only directories may be pushed!");
+ }
+ mDirectories.insert(directory.getName(), 0);
+ mCurrentDir = directory;
+ }
+
+ /**
+ * Pops a directory name from the drop down list
+ * @return True, unless the stack is empty
+ */
+ public boolean popDirname() {
+ mDirectories.remove(mDirectories.getItem(0));
+ return !mDirectories.isEmpty();
+ }
+
+
+ // Custom array adapter to override text colors
+ private class CustomArrayAdapter<T> extends ArrayAdapter<T> {
+
+ public CustomArrayAdapter(UploadFilesActivity ctx, int view) {
+ super(ctx, view);
+ }
+
+ public View getView(int position, View convertView, ViewGroup parent) {
+ View v = super.getView(position, convertView, parent);
+
+ ((TextView) v).setTextColor(getResources().getColorStateList(
+ android.R.color.white));
+ return v;
+ }
+
+ public View getDropDownView(int position, View convertView,
+ ViewGroup parent) {
+ View v = super.getDropDownView(position, convertView, parent);
+
+ ((TextView) v).setTextColor(getResources().getColorStateList(
+ android.R.color.white));
+
+ return v;
+ }
+
+ }
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ public void onDirectoryClick(File directory) {
+ pushDirname(directory);
+ ActionBar actionBar = getSupportActionBar();
+ actionBar.setDisplayHomeAsUpEnabled(true);
+ }
+
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ public void onFileClick(File file) {
+ // nothing to do
+ }
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ public File getInitialDirectory() {
+ return mCurrentDir;
+ }
+
+
+ /**
+ * Performs corresponding action when user presses 'Cancel' or 'Upload' button
+ *
+ * TODO Make here the real request to the Upload service ; will require to receive the account and
+ * target folder where the upload must be done in the received intent.
+ */
+ @Override
+ public void onClick(View v) {
+ if (v.getId() == R.id.upload_files_btn_cancel) {
+ setResult(RESULT_CANCELED);
+ finish();
+
+ } else if (v.getId() == R.id.upload_files_btn_upload) {
+ new CheckAvailableSpaceTask().execute();
+ }
+ }
+
+
+ /**
+ * Asynchronous task checking if there is space enough to copy all the files chosen
+ * to upload into the ownCloud local folder.
+ *
+ * Maybe an AsyncTask is not strictly necessary, but who really knows.
+ *
+ * @author David A. Velasco
+ */
+ private class CheckAvailableSpaceTask extends AsyncTask<Void, Void, Boolean> {
+
+ /**
+ * Updates the UI before trying the movement
+ */
+ @Override
+ protected void onPreExecute () {
+ /// progress dialog and disable 'Move' button
+ mCurrentDialog = IndeterminateProgressDialog.newInstance(R.string.wait_a_moment, false);
+ mCurrentDialog.show(getSupportFragmentManager(), WAIT_DIALOG_TAG);
+ }
+
+
+ /**
+ * Checks the available space
+ *
+ * @return 'True' if there is space enough.
+ */
+ @Override
+ protected Boolean doInBackground(Void... params) {
+ String[] checkedFilePaths = mFileListFragment.getCheckedFilePaths();
+ long total = 0;
+ for (int i=0; checkedFilePaths != null && i < checkedFilePaths.length ; i++) {
+ String localPath = checkedFilePaths[i];
+ File localFile = new File(localPath);
+ total += localFile.length();
+ }
+ return (FileStorageUtils.getUsableSpace(mAccountOnCreation.name) >= total);
+ }
+
+ /**
+ * Updates the activity UI after the check of space is done.
+ *
+ * If there is not space enough. shows a new dialog to query the user if wants to move the files instead
+ * of copy them.
+ *
+ * @param result 'True' when there is space enough to copy all the selected files.
+ */
+ @Override
+ protected void onPostExecute(Boolean result) {
+ mCurrentDialog.dismiss();
+ mCurrentDialog = null;
+
+ if (result) {
+ // return the list of selected files (success)
+ Intent data = new Intent();
+ data.putExtra(EXTRA_CHOSEN_FILES, mFileListFragment.getCheckedFilePaths());
+ setResult(RESULT_OK, data);
+ finish();
+
+ } else {
+ // show a dialog to query the user if wants to move the selected files to the ownCloud folder instead of copying
+ String[] args = {getString(R.string.app_name)};
+ ConfirmationDialogFragment dialog = ConfirmationDialogFragment.newInstance(R.string.upload_query_move_foreign_files, args, R.string.common_yes, -1, R.string.common_no);
+ dialog.setOnConfirmationListener(UploadFilesActivity.this);
+ dialog.show(getSupportFragmentManager(), QUERY_TO_MOVE_DIALOG_TAG);
+ }
+ }
+ }
+
+ @Override
+ public void onConfirmation(String callerTag) {
+ Log_OC.d(TAG, "Positive button in dialog was clicked; dialog tag is " + callerTag);
+ if (callerTag.equals(QUERY_TO_MOVE_DIALOG_TAG)) {
+ // return the list of selected files to the caller activity (success), signaling that they should be moved to the ownCloud folder, instead of copied
+ Intent data = new Intent();
+ data.putExtra(EXTRA_CHOSEN_FILES, mFileListFragment.getCheckedFilePaths());
+ setResult(RESULT_OK_AND_MOVE, data);
+ finish();
+ }
+ }
+
+
+ @Override
+ public void onNeutral(String callerTag) {
+ Log_OC.d(TAG, "Phantom neutral button in dialog was clicked; dialog tag is " + callerTag);
+ }
+
+
+ @Override
+ public void onCancel(String callerTag) {
+ /// nothing to do; don't finish, let the user change the selection
+ Log_OC.d(TAG, "Negative button in dialog was clicked; dialog tag is " + callerTag);
+ }
+
+
+ @Override
+ protected void onAccountSet(boolean stateWasRecovered) {
+ if (getAccount() != null) {
+ if (!mAccountOnCreation.equals(getAccount())) {
+ setResult(RESULT_CANCELED);
+ finish();
+ }
+
+ } else {
+ Log_OC.wtf(TAG, "onAccountChanged was called with NULL account associated!");
+ setResult(RESULT_CANCELED);
+ finish();
+ }
+ }
+
+
+}