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/*
* Copyright (C) 2012 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package com.android.inputmethod.latin;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.SeekBar;
import android.widget.SeekBar.OnSeekBarChangeListener;
import android.widget.TextView;
public final class SeekBarDialog implements DialogInterface.OnClickListener,
OnSeekBarChangeListener {
public interface Listener {
public void onPositiveButtonClick(final SeekBarDialog dialog);
public void onNegativeButtonClick(final SeekBarDialog dialog);
public void onProgressChanged(final SeekBarDialog dialog);
public void onStartTrackingTouch(final SeekBarDialog dialog);
public void onStopTrackingTouch(final SeekBarDialog dialog);
}
public static class Adapter implements Listener {
@Override
public void onPositiveButtonClick(final SeekBarDialog dialog) {}
@Override
public void onNegativeButtonClick(final SeekBarDialog dialog) { dialog.dismiss(); }
@Override
public void onProgressChanged(final SeekBarDialog dialog) {}
@Override
public void onStartTrackingTouch(final SeekBarDialog dialog) {}
@Override
public void onStopTrackingTouch(final SeekBarDialog dialog) {}
}
private static final Listener EMPTY_ADAPTER = new Adapter();
private final AlertDialog mDialog;
private final Listener mListener;
private final TextView mValueView;
private final SeekBar mSeekBar;
private final String mValueFormat;
private int mValue;
private SeekBarDialog(final Builder builder) {
final AlertDialog.Builder dialogBuilder = builder.mDialogBuilder;
dialogBuilder.setView(builder.mView);
dialogBuilder.setPositiveButton(android.R.string.ok, this);
dialogBuilder.setNegativeButton(android.R.string.cancel, this);
mDialog = dialogBuilder.create();
mListener = (builder.mListener == null) ? EMPTY_ADAPTER : builder.mListener;
mValueView = (TextView)builder.mView.findViewById(R.id.seek_bar_dialog_value);
mSeekBar = (SeekBar)builder.mView.findViewById(R.id.seek_bar_dialog_bar);
mSeekBar.setMax(builder.mMaxValue);
mSeekBar.setOnSeekBarChangeListener(this);
if (builder.mValueFormatResId == 0) {
mValueFormat = "%s";
} else {
mValueFormat = mDialog.getContext().getString(builder.mValueFormatResId);
}
}
public void setValue(final int value, final boolean fromUser) {
mValue = value;
mValueView.setText(String.format(mValueFormat, value));
if (!fromUser) {
mSeekBar.setProgress(value);
}
}
public int getValue() {
return mValue;
}
public CharSequence getValueText() {
return mValueView.getText();
}
public void show() {
mDialog.show();
}
public void dismiss() {
mDialog.dismiss();
}
@Override
public void onClick(final DialogInterface dialog, int which) {
if (which == DialogInterface.BUTTON_POSITIVE) {
mListener.onPositiveButtonClick(this);
return;
}
if (which == DialogInterface.BUTTON_NEGATIVE) {
mListener.onNegativeButtonClick(this);
return;
}
}
@Override
public void onProgressChanged(final SeekBar seekBar, final int progress,
final boolean fromUser) {
setValue(progress, fromUser);
if (fromUser) {
mListener.onProgressChanged(this);
}
}
@Override
public void onStartTrackingTouch(final SeekBar seekBar) {
mListener.onStartTrackingTouch(this);
}
@Override
public void onStopTrackingTouch(final SeekBar seekBar) {
mListener.onStopTrackingTouch(this);
}
public static final class Builder {
final AlertDialog.Builder mDialogBuilder;
final View mView;
int mMaxValue;
int mValueFormatResId;
int mValue;
Listener mListener;
public Builder(final Context context) {
mDialogBuilder = new AlertDialog.Builder(context);
mView = LayoutInflater.from(context).inflate(R.layout.seek_bar_dialog, null);
}
public Builder setTitle(final int resId) {
mDialogBuilder.setTitle(resId);
return this;
}
public Builder setMaxValue(final int max) {
mMaxValue = max;
return this;
}
public Builder setValueFromat(final int resId) {
mValueFormatResId = resId;
return this;
}
public Builder setValue(final int value) {
mValue = value;
return this;
}
public Builder setListener(final Listener listener) {
mListener = listener;
return this;
}
public SeekBarDialog create() {
final SeekBarDialog dialog = new SeekBarDialog(this);
dialog.setValue(mValue, false /* fromUser */);
return dialog;
}
}
}
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