Java tutorial
/** * ownCloud Android client application * * @author masensio * @author David A. Velasco * @author Juan Carlos Gonzlez Cabrero * Copyright (C) 2015 ownCloud Inc. * <p/> * 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. * <p/> * 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. * <p/> * 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.cerema.cloud2.ui.activity; import android.app.SearchManager; import android.content.Intent; import android.net.Uri; import android.os.Bundle; import android.support.v4.app.DialogFragment; import android.support.v4.app.Fragment; import android.support.v4.app.FragmentTransaction; import com.cerema.cloud2.R; import com.cerema.cloud2.datamodel.OCFile; import com.cerema.cloud2.lib.common.operations.RemoteOperation; import com.cerema.cloud2.lib.common.operations.RemoteOperationResult; import com.cerema.cloud2.lib.common.utils.Log_OC; import com.cerema.cloud2.lib.resources.shares.OCShare; import com.cerema.cloud2.lib.resources.shares.ShareType; import com.cerema.cloud2.operations.CreateShareViaLinkOperation; import com.cerema.cloud2.operations.GetSharesForFileOperation; import com.cerema.cloud2.operations.UnshareOperation; import com.cerema.cloud2.operations.UpdateSharePermissionsOperation; import com.cerema.cloud2.providers.UsersAndGroupsSearchProvider; import com.cerema.cloud2.ui.dialog.ShareLinkToDialog; import com.cerema.cloud2.ui.fragment.EditShareFragment; import com.cerema.cloud2.ui.fragment.SearchShareesFragment; import com.cerema.cloud2.ui.fragment.ShareFileFragment; import com.cerema.cloud2.ui.fragment.ShareFragmentListener; import com.cerema.cloud2.utils.GetShareWithUsersAsyncTask; /** * Activity for sharing files */ public class ShareActivity extends FileActivity implements ShareFragmentListener { private static final String TAG = ShareActivity.class.getSimpleName(); private static final String TAG_SHARE_FRAGMENT = "SHARE_FRAGMENT"; private static final String TAG_SEARCH_FRAGMENT = "SEARCH_USER_AND_GROUPS_FRAGMENT"; private static final String TAG_EDIT_SHARE_FRAGMENT = "EDIT_SHARE_FRAGMENT"; /** * Tag for dialog */ private static final String FTAG_CHOOSER_DIALOG = "CHOOSER_DIALOG"; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.share_activity); FragmentTransaction ft = getSupportFragmentManager().beginTransaction(); if (savedInstanceState == null) { // Add Share fragment on first creation Fragment fragment = ShareFileFragment.newInstance(getFile(), getAccount()); ft.replace(R.id.share_fragment_container, fragment, TAG_SHARE_FRAGMENT); ft.commit(); } } protected void onAccountSet(boolean stateWasRecovered) { super.onAccountSet(stateWasRecovered); // Load data into the list Log_OC.d(TAG, "Refreshing lists on account set"); refreshSharesFromStorageManager(); // Request for a refresh of the data through the server (starts an Async Task) refreshUsersOrGroupsListFromServer(); } @Override protected void onNewIntent(Intent intent) { // Verify the action and get the query if (Intent.ACTION_SEARCH.equals(intent.getAction())) { String query = intent.getStringExtra(SearchManager.QUERY); Log_OC.w(TAG, "Ignored Intent requesting to query for " + query); } else if (UsersAndGroupsSearchProvider.ACTION_SHARE_WITH.equals(intent.getAction())) { Uri data = intent.getData(); String dataString = intent.getDataString(); String shareWith = dataString.substring(dataString.lastIndexOf('/') + 1); doShareWith(shareWith, data.getAuthority()); } else { Log_OC.wtf(TAG, "Unexpected intent " + intent.toString()); } } private void doShareWith(String shareeName, String dataAuthority) { ShareType shareType = UsersAndGroupsSearchProvider.getShareType(dataAuthority); getFileOperationsHelper().shareFileWithSharee(getFile(), shareeName, shareType, getAppropiatePermissions(shareType)); } private int getAppropiatePermissions(ShareType shareType) { // check if the Share is FERERATED boolean isFederated = ShareType.FEDERATED.equals(shareType); if (getFile().isSharedWithMe()) { return OCShare.READ_PERMISSION_FLAG; // minimum permissions } else if (getFile().isFolder()) { return (isFederated) ? OCShare.FEDERATED_PERMISSIONS_FOR_FOLDER : OCShare.MAXIMUM_PERMISSIONS_FOR_FOLDER; } else { // isFile return (isFederated) ? OCShare.FEDERATED_PERMISSIONS_FOR_FILE : OCShare.MAXIMUM_PERMISSIONS_FOR_FILE; } } @Override public void showSearchUsersAndGroups() { // replace ShareFragment with SearchFragment on demand FragmentTransaction ft = getSupportFragmentManager().beginTransaction(); Fragment searchFragment = SearchShareesFragment.newInstance(getFile(), getAccount()); ft.replace(R.id.share_fragment_container, searchFragment, TAG_SEARCH_FRAGMENT); ft.addToBackStack(null); // BACK button will recover the ShareFragment ft.commit(); } @Override public void showEditShare(OCShare share) { // replace current fragment with EditShareFragment on demand FragmentTransaction ft = getSupportFragmentManager().beginTransaction(); Fragment editShareFragment = EditShareFragment.newInstance(share, getFile(), getAccount()); ft.replace(R.id.share_fragment_container, editShareFragment, TAG_EDIT_SHARE_FRAGMENT); ft.addToBackStack(null); // BACK button will recover the previous fragment ft.commit(); } @Override // Call to Unshare operation public void unshareWith(OCShare share) { OCFile file = getFile(); getFileOperationsHelper().unshareFileWithUserOrGroup(file, share.getShareType(), share.getShareWith()); } /** * Get users and groups from the server to fill in the "share with" list */ @Override public void refreshUsersOrGroupsListFromServer() { // Show loading showLoadingDialog(getString(R.string.common_loading)); // Get Users and Groups GetShareWithUsersAsyncTask getTask = new GetShareWithUsersAsyncTask(this); Object[] params = { getFile(), getAccount(), getStorageManager() }; getTask.execute(params); } /** * Updates the view associated to the activity after the finish of some operation over files * in the current account. * * @param operation Removal operation performed. * @param result Result of the removal. */ @Override public void onRemoteOperationFinish(RemoteOperation operation, RemoteOperationResult result) { super.onRemoteOperationFinish(operation, result); if (result.isSuccess() || (operation instanceof GetSharesForFileOperation && result.getCode() == RemoteOperationResult.ResultCode.SHARE_NOT_FOUND)) { Log_OC.d(TAG, "Refreshing view on successful operation or finished refresh"); refreshSharesFromStorageManager(); } if (operation instanceof CreateShareViaLinkOperation && result.isSuccess()) { // Send link to the app String link = ((OCShare) (result.getData().get(0))).getShareLink(); Log_OC.d(TAG, "Share link = " + link); Intent intentToShareLink = new Intent(Intent.ACTION_SEND); intentToShareLink.putExtra(Intent.EXTRA_TEXT, link); intentToShareLink.setType("text/plain"); String[] packagesToExclude = new String[] { getPackageName() }; DialogFragment chooserDialog = ShareLinkToDialog.newInstance(intentToShareLink, packagesToExclude); chooserDialog.show(getSupportFragmentManager(), FTAG_CHOOSER_DIALOG); } if (operation instanceof UnshareOperation && result.isSuccess() && getEditShareFragment() != null) { getSupportFragmentManager().popBackStack(); } if (operation instanceof UpdateSharePermissionsOperation && getEditShareFragment() != null && getEditShareFragment().isAdded()) { getEditShareFragment().onUpdateSharePermissionsFinished(result); } } /** * Updates the view, reading data from {@link com.cerema.cloud2.datamodel.FileDataStorageManager} */ private void refreshSharesFromStorageManager() { ShareFileFragment shareFileFragment = getShareFileFragment(); if (shareFileFragment != null && shareFileFragment.isAdded()) { // only if added to the view hierarchy!! shareFileFragment.refreshCapabilitiesFromDB(); shareFileFragment.refreshUsersOrGroupsListFromDB(); shareFileFragment.refreshPublicShareFromDB(); } SearchShareesFragment searchShareesFragment = getSearchFragment(); if (searchShareesFragment != null && searchShareesFragment.isAdded()) { // only if added to the view hierarchy!! searchShareesFragment.refreshUsersOrGroupsListFromDB(); } EditShareFragment editShareFragment = getEditShareFragment(); if (editShareFragment != null && editShareFragment.isAdded()) { editShareFragment.refreshUiFromDB(); } } /** * Shortcut to get access to the {@link ShareFileFragment} instance, if any * * @return A {@link ShareFileFragment} instance, or null */ private ShareFileFragment getShareFileFragment() { return (ShareFileFragment) getSupportFragmentManager().findFragmentByTag(TAG_SHARE_FRAGMENT); } /** * Shortcut to get access to the {@link SearchShareesFragment} instance, if any * * @return A {@link SearchShareesFragment} instance, or null */ private SearchShareesFragment getSearchFragment() { return (SearchShareesFragment) getSupportFragmentManager().findFragmentByTag(TAG_SEARCH_FRAGMENT); } /** * Shortcut to get access to the {@link EditShareFragment} instance, if any * * @return A {@link EditShareFragment} instance, or null */ private EditShareFragment getEditShareFragment() { return (EditShareFragment) getSupportFragmentManager().findFragmentByTag(TAG_EDIT_SHARE_FRAGMENT); } }