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/* -*- Mode: Java; c-basic-offset: 4; tab-width: 4; indent-tabs-mode: nil; -*-
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
package org.mozilla.gecko.preferences;
import org.mozilla.gecko.R;
import android.content.Context;
import android.graphics.drawable.Drawable;
import android.preference.Preference;
import android.text.Spanned;
import android.text.SpannableStringBuilder;
import android.text.style.ImageSpan;
import android.util.AttributeSet;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
class ModifiableHintPreference extends Preference {
private static final String LOGTAG = "ModifiableHintPref";
private final Context mContext;
private final String MATCH_STRING = "%I";
private final int RESID_TEXT_VIEW = R.id.label_search_hint;
private final int RESID_DRAWABLE = R.drawable.ab_add_search_engine;
private final double SCALE_FACTOR = 0.5;
public ModifiableHintPreference(Context context, AttributeSet attrs) {
super(context, attrs);
mContext = context;
}
public ModifiableHintPreference(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
mContext = context;
}
@Override
protected View onCreateView(ViewGroup parent) {
View thisView = super.onCreateView(parent);
configurePreferenceView(thisView);
return thisView;
}
private void configurePreferenceView(View view) {
TextView textView = (TextView) view.findViewById(RESID_TEXT_VIEW);
String searchHint = textView.getText().toString();
// Use an ImageSpan to include the "add search" icon in the Tip.
int imageSpanIndex = searchHint.indexOf(MATCH_STRING);
if (imageSpanIndex != -1) {
// Scale the resource.
Drawable drawable = mContext.getResources().getDrawable(RESID_DRAWABLE);
drawable.setBounds(0, 0, (int) (drawable.getIntrinsicWidth() * SCALE_FACTOR),
(int) (drawable.getIntrinsicHeight() * SCALE_FACTOR));
ImageSpan searchIcon = new ImageSpan(drawable);
final SpannableStringBuilder hintBuilder = new SpannableStringBuilder(searchHint);
// Insert the image.
hintBuilder.setSpan(searchIcon, imageSpanIndex, imageSpanIndex + MATCH_STRING.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
textView.setText(hintBuilder, TextView.BufferType.SPANNABLE);
}
}
}
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