nextcloud-android/src/com/owncloud/android/ui/activity/UploadFilesActivity.java

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2012-08-14 14:37:08 +04:00
/* ownCloud Android client application
* Copyright (C) 2011 Bartek Przybylski
*
* 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 com.owncloud.android.ui.activity;
import java.io.File;
import android.content.Intent;
import android.os.Bundle;
import android.os.Environment;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.TextView;
import com.actionbarsherlock.app.ActionBar;
import com.actionbarsherlock.app.ActionBar.OnNavigationListener;
import com.actionbarsherlock.app.SherlockFragmentActivity;
import com.actionbarsherlock.view.MenuItem;
import com.owncloud.android.ui.fragment.LocalFileListFragment;
import com.owncloud.android.R;
/**
* 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 SherlockFragmentActivity implements
LocalFileListFragment.ContainerActivity, OnNavigationListener, OnClickListener {
private ArrayAdapter<String> mDirectories;
private File mCurrentDir = null;
private LocalFileListFragment mFileListFragment;
private Button mCancelBtn;
private Button mUploadBtn;
public static final String EXTRA_DIRECTORY_PATH = "com.owncloud.android.Directory";
public static final String EXTRA_CHOSEN_FILES = "com.owncloud.android.ChosenFiles";
private static final String TAG = "UploadFilesActivity";
@Override
public void onCreate(Bundle savedInstanceState) {
Log.d(TAG, "onCreate() start");
super.onCreate(savedInstanceState);
if(savedInstanceState != null) {
mCurrentDir = new File(savedInstanceState.getString(UploadFilesActivity.EXTRA_DIRECTORY_PATH));
} else {
mCurrentDir = Environment.getExternalStorageDirectory();
}
/// 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);
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// Set input controllers
mCancelBtn = (Button) findViewById(R.id.upload_files_btn_cancel);
mCancelBtn.setOnClickListener(this);
mUploadBtn = (Button) 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);
Log.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 = false;
}
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.d(TAG, "onSaveInstanceState() start");
super.onSaveInstanceState(outState);
outState.putString(UploadFilesActivity.EXTRA_DIRECTORY_PATH, mCurrentDir.getAbsolutePath());
Log.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;
}
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/**
* Performs corresponding action when user presses 'Cancel' or 'Upload' button
*/
@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) {
Intent data = new Intent();
data.putExtra(EXTRA_CHOSEN_FILES, mFileListFragment.getCheckedFilePaths());
setResult(RESULT_OK, data);
finish();
}
}
}