Java tutorial
/* ownCloud Android client application * Copyright (C) 2012-2014 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.digitalarx.android.files; import org.apache.http.protocol.HTTP; import android.accounts.Account; import android.accounts.AccountManager; import android.content.Intent; import android.net.Uri; import android.support.v4.app.DialogFragment; import android.webkit.MimeTypeMap; import android.widget.Toast; import com.digitalarx.android.R; import com.digitalarx.android.datamodel.OCFile; import com.digitalarx.android.files.services.FileDownloader.FileDownloaderBinder; import com.digitalarx.android.files.services.FileUploader.FileUploaderBinder; import com.owncloud.android.lib.common.accounts.AccountUtils.Constants; import com.owncloud.android.lib.common.network.WebdavUtils; import com.owncloud.android.lib.resources.status.OwnCloudVersion; import com.digitalarx.android.services.OperationsService; import com.digitalarx.android.ui.activity.FileActivity; import com.digitalarx.android.ui.dialog.ShareLinkToDialog; import com.digitalarx.android.utils.Log_OC; /** * * @author masensio * @author David A. Velasco */ public class FileOperationsHelper { private static final String TAG = FileOperationsHelper.class.getName(); private static final String FTAG_CHOOSER_DIALOG = "CHOOSER_DIALOG"; protected FileActivity mFileActivity = null; /// Identifier of operation in progress which result shouldn't be lost private long mWaitingForOpId = Long.MAX_VALUE; public FileOperationsHelper(FileActivity fileActivity) { mFileActivity = fileActivity; } public void openFile(OCFile file) { if (file != null) { String storagePath = file.getStoragePath(); String encodedStoragePath = WebdavUtils.encodePath(storagePath); Intent intentForSavedMimeType = new Intent(Intent.ACTION_VIEW); intentForSavedMimeType.setDataAndType(Uri.parse("file://" + encodedStoragePath), file.getMimetype()); intentForSavedMimeType .setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION | Intent.FLAG_GRANT_WRITE_URI_PERMISSION); Intent intentForGuessedMimeType = null; if (storagePath.lastIndexOf('.') >= 0) { String guessedMimeType = MimeTypeMap.getSingleton() .getMimeTypeFromExtension(storagePath.substring(storagePath.lastIndexOf('.') + 1)); if (guessedMimeType != null && !guessedMimeType.equals(file.getMimetype())) { intentForGuessedMimeType = new Intent(Intent.ACTION_VIEW); intentForGuessedMimeType.setDataAndType(Uri.parse("file://" + encodedStoragePath), guessedMimeType); intentForGuessedMimeType.setFlags( Intent.FLAG_GRANT_READ_URI_PERMISSION | Intent.FLAG_GRANT_WRITE_URI_PERMISSION); } } Intent chooserIntent = null; if (intentForGuessedMimeType != null) { chooserIntent = Intent.createChooser(intentForGuessedMimeType, mFileActivity.getString(R.string.actionbar_open_with)); } else { chooserIntent = Intent.createChooser(intentForSavedMimeType, mFileActivity.getString(R.string.actionbar_open_with)); } mFileActivity.startActivity(chooserIntent); } else { Log_OC.wtf(TAG, "Trying to open a NULL OCFile"); } } public void shareFileWithLink(OCFile file) { if (isSharedSupported()) { if (file != null) { String link = "https://fake.url"; Intent intent = createShareWithLinkIntent(link); String[] packagesToExclude = new String[] { mFileActivity.getPackageName() }; DialogFragment chooserDialog = ShareLinkToDialog.newInstance(intent, packagesToExclude, file); chooserDialog.show(mFileActivity.getSupportFragmentManager(), FTAG_CHOOSER_DIALOG); } else { Log_OC.wtf(TAG, "Trying to share a NULL OCFile"); } } else { // Show a Message Toast t = Toast.makeText(mFileActivity, mFileActivity.getString(R.string.share_link_no_support_share_api), Toast.LENGTH_LONG); t.show(); } } public void shareFileWithLinkToApp(OCFile file, Intent sendIntent) { if (file != null) { mFileActivity.showLoadingDialog(); Intent service = new Intent(mFileActivity, OperationsService.class); service.setAction(OperationsService.ACTION_CREATE_SHARE); service.putExtra(OperationsService.EXTRA_ACCOUNT, mFileActivity.getAccount()); service.putExtra(OperationsService.EXTRA_REMOTE_PATH, file.getRemotePath()); service.putExtra(OperationsService.EXTRA_SEND_INTENT, sendIntent); mWaitingForOpId = mFileActivity.getOperationsServiceBinder().newOperation(service); } else { Log_OC.wtf(TAG, "Trying to open a NULL OCFile"); } } private Intent createShareWithLinkIntent(String link) { Intent intentToShareLink = new Intent(Intent.ACTION_SEND); intentToShareLink.putExtra(Intent.EXTRA_TEXT, link); intentToShareLink.setType(HTTP.PLAIN_TEXT_TYPE); return intentToShareLink; } /** * @return 'True' if the server supports the Share API */ public boolean isSharedSupported() { if (mFileActivity.getAccount() != null) { AccountManager accountManager = AccountManager.get(mFileActivity); String version = accountManager.getUserData(mFileActivity.getAccount(), Constants.KEY_OC_VERSION); return (new OwnCloudVersion(version)).isSharedSupported(); } return false; } public void unshareFileWithLink(OCFile file) { if (isSharedSupported()) { // Unshare the file Intent service = new Intent(mFileActivity, OperationsService.class); service.setAction(OperationsService.ACTION_UNSHARE); service.putExtra(OperationsService.EXTRA_ACCOUNT, mFileActivity.getAccount()); service.putExtra(OperationsService.EXTRA_REMOTE_PATH, file.getRemotePath()); mWaitingForOpId = mFileActivity.getOperationsServiceBinder().newOperation(service); mFileActivity.showLoadingDialog(); } else { // Show a Message Toast t = Toast.makeText(mFileActivity, mFileActivity.getString(R.string.share_link_no_support_share_api), Toast.LENGTH_LONG); t.show(); } } public void sendDownloadedFile(OCFile file) { if (file != null) { Intent sendIntent = new Intent(android.content.Intent.ACTION_SEND); // set MimeType sendIntent.setType(file.getMimetype()); sendIntent.putExtra(Intent.EXTRA_STREAM, Uri.parse("file://" + file.getStoragePath())); sendIntent.putExtra(Intent.ACTION_SEND, true); // Send Action // Show dialog, without the own app String[] packagesToExclude = new String[] { mFileActivity.getPackageName() }; DialogFragment chooserDialog = ShareLinkToDialog.newInstance(sendIntent, packagesToExclude, file); chooserDialog.show(mFileActivity.getSupportFragmentManager(), FTAG_CHOOSER_DIALOG); } else { Log_OC.wtf(TAG, "Trying to send a NULL OCFile"); } } public void syncFile(OCFile file) { // Sync file Intent service = new Intent(mFileActivity, OperationsService.class); service.setAction(OperationsService.ACTION_SYNC_FILE); service.putExtra(OperationsService.EXTRA_ACCOUNT, mFileActivity.getAccount()); service.putExtra(OperationsService.EXTRA_REMOTE_PATH, file.getRemotePath()); service.putExtra(OperationsService.EXTRA_SYNC_FILE_CONTENTS, true); mWaitingForOpId = mFileActivity.getOperationsServiceBinder().newOperation(service); mFileActivity.showLoadingDialog(); } public void renameFile(OCFile file, String newFilename) { // RenameFile Intent service = new Intent(mFileActivity, OperationsService.class); service.setAction(OperationsService.ACTION_RENAME); service.putExtra(OperationsService.EXTRA_ACCOUNT, mFileActivity.getAccount()); service.putExtra(OperationsService.EXTRA_REMOTE_PATH, file.getRemotePath()); service.putExtra(OperationsService.EXTRA_NEWNAME, newFilename); mWaitingForOpId = mFileActivity.getOperationsServiceBinder().newOperation(service); mFileActivity.showLoadingDialog(); } public void removeFile(OCFile file, boolean onlyLocalCopy) { // RemoveFile Intent service = new Intent(mFileActivity, OperationsService.class); service.setAction(OperationsService.ACTION_REMOVE); service.putExtra(OperationsService.EXTRA_ACCOUNT, mFileActivity.getAccount()); service.putExtra(OperationsService.EXTRA_REMOTE_PATH, file.getRemotePath()); service.putExtra(OperationsService.EXTRA_REMOVE_ONLY_LOCAL, onlyLocalCopy); mWaitingForOpId = mFileActivity.getOperationsServiceBinder().newOperation(service); mFileActivity.showLoadingDialog(); } public void createFolder(String remotePath, boolean createFullPath) { // Create Folder Intent service = new Intent(mFileActivity, OperationsService.class); service.setAction(OperationsService.ACTION_CREATE_FOLDER); service.putExtra(OperationsService.EXTRA_ACCOUNT, mFileActivity.getAccount()); service.putExtra(OperationsService.EXTRA_REMOTE_PATH, remotePath); service.putExtra(OperationsService.EXTRA_CREATE_FULL_PATH, createFullPath); mWaitingForOpId = mFileActivity.getOperationsServiceBinder().newOperation(service); mFileActivity.showLoadingDialog(); } public void cancelTransference(OCFile file) { Account account = mFileActivity.getAccount(); FileDownloaderBinder downloaderBinder = mFileActivity.getFileDownloaderBinder(); FileUploaderBinder uploaderBinder = mFileActivity.getFileUploaderBinder(); if (downloaderBinder != null && downloaderBinder.isDownloading(account, file)) { // Remove etag for parent, if file is a keep_in_sync if (file.keepInSync()) { OCFile parent = mFileActivity.getStorageManager().getFileById(file.getParentId()); parent.setEtag(""); mFileActivity.getStorageManager().saveFile(parent); } downloaderBinder.cancel(account, file); } else if (uploaderBinder != null && uploaderBinder.isUploading(account, file)) { uploaderBinder.cancel(account, file); } } public long getOpIdWaitingFor() { return mWaitingForOpId; } public void setOpIdWaitingFor(long waitingForOpId) { mWaitingForOpId = waitingForOpId; } }