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/*
* Copyright (C) 2012-2014 Dominik Schürmann <dominik@dominikschuermann.de>
*
* 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 org.sufficientlysecure.keychain.ui.dialog;
import android.app.Activity;
import android.app.Dialog;
import android.app.ProgressDialog;
import android.content.DialogInterface;
import android.content.DialogInterface.OnKeyListener;
import android.content.Intent;
import android.graphics.Color;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.v4.app.DialogFragment;
import android.view.ContextThemeWrapper;
import android.view.KeyEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import org.sufficientlysecure.keychain.R;
import org.sufficientlysecure.keychain.service.KeychainService;
import org.sufficientlysecure.keychain.ui.util.ThemeChanger;
/**
* meant to be used
*/
public class ProgressDialogFragment extends DialogFragment {
private static final String ARG_MESSAGE = "message";
private static final String ARG_STYLE = "style";
private static final String ARG_CANCELABLE = "cancelable";
private static final String ARG_SERVICE_TYPE = "service_class";
boolean mCanCancel = false, mPreventCancel = false, mIsCancelled = false;
/**
* creates a new instance of this fragment
* @param message the message to be displayed initially above the progress bar
* @param style the progress bar style, as defined in ProgressDialog (horizontal or spinner)
* @param cancelable should we let the user cancel this operation
* @return
*/
public static ProgressDialogFragment newInstance(String message, int style, boolean cancelable) {
ProgressDialogFragment frag = new ProgressDialogFragment();
Bundle args = new Bundle();
args.putString(ARG_MESSAGE, message);
args.putInt(ARG_STYLE, style);
args.putBoolean(ARG_CANCELABLE, cancelable);
frag.setArguments(args);
return frag;
}
public void setProgress(int messageId, int progress, int max) {
setProgress(getString(messageId), progress, max);
}
public void setProgress(int progress, int max) {
ProgressDialog dialog = (ProgressDialog) getDialog();
if (mIsCancelled || dialog == null) {
return;
}
dialog.setProgress(progress);
dialog.setMax(max);
}
public void setProgress(String message, int progress, int max) {
ProgressDialog dialog = (ProgressDialog) getDialog();
if (mIsCancelled || dialog == null) {
return;
}
dialog.setMessage(message);
dialog.setProgress(progress);
dialog.setMax(max);
}
@NonNull
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
final Activity activity = getActivity();
ContextThemeWrapper context = ThemeChanger.getDialogThemeWrapper(activity);
ProgressDialog dialog = new ProgressDialog(context);
dialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
// We never use the builtin cancel method
dialog.setCancelable(false);
dialog.setCanceledOnTouchOutside(false);
String message = getArguments().getString(ARG_MESSAGE);
int style = getArguments().getInt(ARG_STYLE);
mCanCancel = getArguments().getBoolean(ARG_CANCELABLE);
dialog.setMessage(message);
dialog.setProgressStyle(style);
// If this is supposed to be cancelable, add our (custom) cancel mechanic
if (mCanCancel) {
// Just show the button, take care of the onClickListener afterwards (in onStart)
dialog.setButton(DialogInterface.BUTTON_NEGATIVE,
activity.getString(R.string.progress_cancel), (DialogInterface.OnClickListener) null);
}
// Disable the back button regardless
OnKeyListener keyListener = new OnKeyListener() {
@Override
public boolean onKey(DialogInterface dialog, int keyCode, KeyEvent event) {
if (keyCode == KeyEvent.KEYCODE_BACK) {
if (mCanCancel) {
((ProgressDialog) dialog).getButton(
DialogInterface.BUTTON_NEGATIVE).performClick();
}
// return true, indicating we handled this
return true;
}
return false;
}
};
dialog.setOnKeyListener(keyListener);
return dialog;
}
public void setPreventCancel(boolean preventCancel) {
// Don't care if we can't cancel anymore either way!
if (mIsCancelled || ! mCanCancel) {
return;
}
mPreventCancel = preventCancel;
ProgressDialog dialog = (ProgressDialog) getDialog();
if (dialog == null) {
return;
}
final Button negative = dialog.getButton(DialogInterface.BUTTON_NEGATIVE);
negative.setEnabled(mIsCancelled && !preventCancel);
}
@Override
public void onStart() {
super.onStart();
// Override the default behavior so the dialog is NOT dismissed on click
final Button negative = ((ProgressDialog) getDialog()).getButton(DialogInterface.BUTTON_NEGATIVE);
negative.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// nvm if we are already cancelled, or weren't able to begin with
if (mIsCancelled || ! mCanCancel) {
return;
}
// Remember this, and don't allow another click
mIsCancelled = true;
negative.setClickable(false);
negative.setTextColor(Color.GRAY);
// send a cancel message. note that this message will be handled by
// KeychainService.onStartCommand, which runs in this thread,
// not the service one, and will not queue up a command.
Intent serviceIntent = new Intent(getActivity(), KeychainService.class);
serviceIntent.setAction(KeychainService.ACTION_CANCEL);
getActivity().startService(serviceIntent);
// Set the progress bar accordingly
ProgressDialog dialog = (ProgressDialog) getDialog();
if (dialog == null) {
return;
}
dialog.setIndeterminate(true);
dialog.setMessage(getString(R.string.progress_cancelling));
}
});
}
}
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