The Tor Browser: mobile/android/base/preferences/ModifiableHintPreference.java@fc2d59ddac77

     1 /* -*- Mode: Java; c-basic-offset: 4; tab-width: 4; indent-tabs-mode: nil; -*-

     2  * This Source Code Form is subject to the terms of the Mozilla Public

     3  * License, v. 2.0. If a copy of the MPL was not distributed with this

     4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     6 package org.mozilla.gecko.preferences;

     8 import org.mozilla.gecko.R;

    10 import android.content.Context;

    11 import android.graphics.drawable.Drawable;

    12 import android.preference.Preference;

    13 import android.text.Spanned;

    14 import android.text.SpannableStringBuilder;

    15 import android.text.style.ImageSpan;

    16 import android.util.AttributeSet;

    17 import android.view.View;

    18 import android.view.ViewGroup;

    19 import android.widget.TextView;

    21 class ModifiableHintPreference extends Preference {

    22     private static final String LOGTAG = "ModifiableHintPref";

    23     private final Context mContext;

    25     private final String MATCH_STRING = "%I";

    26     private final int RESID_TEXT_VIEW = R.id.label_search_hint;

    27     private final int RESID_DRAWABLE = R.drawable.ab_add_search_engine;

    28     private final double SCALE_FACTOR = 0.5;

    30     public ModifiableHintPreference(Context context, AttributeSet attrs) {

    31         super(context, attrs);

    32         mContext = context;

    33     }

    35     public ModifiableHintPreference(Context context, AttributeSet attrs, int defStyle) {

    36         super(context, attrs, defStyle);

    37         mContext = context;

    38     }

    40     @Override

    41     protected View onCreateView(ViewGroup parent) {

    42         View thisView = super.onCreateView(parent);

    43         configurePreferenceView(thisView);

    44         return thisView;

    45     }

    47     private void configurePreferenceView(View view) {

    48         TextView textView = (TextView) view.findViewById(RESID_TEXT_VIEW);

    49         String searchHint = textView.getText().toString();

    51         // Use an ImageSpan to include the "add search" icon in the Tip.

    52         int imageSpanIndex = searchHint.indexOf(MATCH_STRING);

    53         if (imageSpanIndex != -1) {

    54             // Scale the resource.

    55             Drawable drawable = mContext.getResources().getDrawable(RESID_DRAWABLE);

    56             drawable.setBounds(0, 0, (int) (drawable.getIntrinsicWidth() * SCALE_FACTOR),

    57                                (int) (drawable.getIntrinsicHeight() * SCALE_FACTOR));

    59             ImageSpan searchIcon = new ImageSpan(drawable);

    60             final SpannableStringBuilder hintBuilder = new SpannableStringBuilder(searchHint);

    62             // Insert the image.

    63             hintBuilder.setSpan(searchIcon, imageSpanIndex, imageSpanIndex + MATCH_STRING.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);

    64             textView.setText(hintBuilder, TextView.BufferType.SPANNABLE);

    65         }

    66     }

    67 }

The Tor Browser / file revision