Update packageName
[pub/Android/ownCloud.git] / src / com / owncloud / android / ui / activity / UploadFilesActivity.java
diff --git a/src/com/owncloud/android/ui/activity/UploadFilesActivity.java b/src/com/owncloud/android/ui/activity/UploadFilesActivity.java
new file mode 100644 (file)
index 0000000..ab7bb46
--- /dev/null
@@ -0,0 +1,395 @@
+/* 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();
+        }
+    }    
+
+    
+}