EditTextPreferenceWithValue.java

/**
 * Copyright 2010 Eric Taix
 * 
 * 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.bigpupdev.synodroid.preference;

import com.bigpupdev.synodroid.R;
import com.bigpupdev.synodroid.utils.UIUtils;

import android.content.Context;
import android.preference.EditTextPreference;
import android.text.InputType;
import android.util.AttributeSet;
import android.view.View;
import android.widget.EditText;
import android.widget.TextView;

/**
 * A preference which shows the current value
 * 
 * @author Eric Taix (eric.taix at gmail.com)
 */
public class EditTextPreferenceWithValue extends EditTextPreference implements PreferenceWithValue {

	// The textview used in the preference
	private TextView valueView;
	// The input type ot use in the dialog's EditText
	private Integer inputType = null;
	private boolean doTrim = false;

	/**
	 * Constructor
	 * 
	 * @param context
	 * @param attrs
	 */
	public EditTextPreferenceWithValue(Context context, AttributeSet attrs, boolean trim) {
		super(context, attrs);
		if (UIUtils.isHoneycombTablet(context)){
			setLayoutResource(R.layout.preference_with_value_padded);
		}
		else{
			setLayoutResource(R.layout.preference_with_value);
		}
		setSingleLine(true);
		doTrim = trim;
	}

	/**
	 * Constructor
	 * 
	 * @param context
	 */
	public EditTextPreferenceWithValue(Context context, boolean trim) {
		super(context);
		if (UIUtils.isHoneycombTablet(context)){
			setLayoutResource(R.layout.preference_with_value_padded);
		}
		else{
			setLayoutResource(R.layout.preference_with_value);
		}
		setSingleLine(true);
		doTrim = trim;

	}

	/**
	 * Set the input type for the dialog's EditText. Useful to set password, int, or other specific type of input
	 * 
	 * @param inputTypeP
	 */
	public EditTextPreferenceWithValue setInputType(int inputTypeP) {
		inputType = inputTypeP;
		EditText text = getEditText();
		if (text != null) {
			text.setInputType(inputType);
		}
		return this;
	}

	/**
	 * Set the EditText to be a single line
	 * 
	 * @param singleP
	 * @return
	 */
	public EditTextPreferenceWithValue setSingleLine(boolean singleP) {
		EditText text = getEditText();
		if (text != null) {
			text.setSingleLine(singleP);
		}
		return this;
	}

	/**
	 * Binds the view to the data for this preference
	 */
	@Override
	protected void onBindView(View view) {
		super.onBindView(view);
		valueView = (TextView) view.findViewById(R.id.preference_value);
		updateValueInPreference(getText());
	}

	/**
	 * Set the text
	 */
	@Override
	public void setText(String text) {
		if (doTrim && text != null) {
			super.setText(text.trim());
		} else {
			super.setText(text);
		}
		updateValueInPreference(getText());
	}

	/**
	 * Update the value showned in the preference
	 * 
	 * @param valueP
	 */
	private void updateValueInPreference(String valueP) {
		// Prevent from showing a password
		EditText editText = getEditText();
		if (valueP != null && editText != null && (editText.getInputType() & InputType.TYPE_TEXT_VARIATION_PASSWORD) != 0) {
			valueP = "*********************************************************************************************************************".substring(0, valueP.length());
		}
		// Show the value
		if (valueView != null) {
			valueView.setText(valueP);
		}
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see com.bigpupdev.synodroid.common.preference.PreferenceWithValue#getValue()
	 */
	public String getPrintableValue() {
		return getText();
	}

	/**
	 * Convenient method to create an instance of EditTextPreference
	 * 
	 * @param keyP
	 * @param titleP
	 * @param summaryP
	 * @return
	 */
	public static EditTextPreferenceWithValue create(Context contextP, String keyP, int titleP, int summaryP, boolean trim) {
		EditTextPreferenceWithValue pref = new EditTextPreferenceWithValue(contextP, trim);
		pref.setKey(keyP);
		pref.setTitle(titleP);
		pref.setSummary(summaryP);
		pref.setDialogTitle(titleP);
		pref.setDialogMessage(summaryP);
		return pref;
	}

}