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/*
* Copyright (c) 2013, The Linux Foundation. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* * Neither the name of The Linux Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.android.browser;
import com.android.browser.R;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.text.InputFilter;
import android.text.Spanned;
import android.util.Log;
import android.widget.EditText;
public class BrowserUtils {
private static final String LOGTAG = "BrowserUtils";
public static final int FILENAME_MAX_LENGTH = 32;
public static final int ADDRESS_MAX_LENGTH = 2048;
private static AlertDialog.Builder mAlertDialog = null;
public static void maxLengthFilter(final Context context, final EditText editText,
final int max_length) {
InputFilter[] contentFilters = new InputFilter[1];
contentFilters[0] = new InputFilter.LengthFilter(max_length) {
public CharSequence filter(CharSequence source, int start, int end,
Spanned dest, int dstart, int dend) {
int keep = max_length - (dest.length() - (dend - dstart));
if (keep <= 0) {
showWarningDialog(context, max_length);
return "";
} else if (keep >= end - start) {
return null;
} else {
if (keep < source.length()) {
showWarningDialog(context, max_length);
}
return source.subSequence(start, start + keep);
}
}
};
editText.setFilters(contentFilters);
}
private static void showWarningDialog(final Context context, int max_length) {
if (mAlertDialog != null)
return;
mAlertDialog = new AlertDialog.Builder(context);
mAlertDialog.setTitle(R.string.browser_max_input_title)
// .setIcon(android.R.drawable.ic_dialog_info)
.setMessage(context.getString(R.string.browser_max_input, max_length))
.setPositiveButton(R.string.ok,
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
return;
}
})
.show()
.setOnDismissListener(new DialogInterface.OnDismissListener() {
public void onDismiss(DialogInterface dialog) {
Log.w("BrowserUtils", "onDismiss");
mAlertDialog = null;
return;
}
});
}
}
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