mobile/android/base/preferences/ModifiableHintPreference.java

Wed, 31 Dec 2014 06:09:35 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Wed, 31 Dec 2014 06:09:35 +0100
changeset 0
6474c204b198
permissions
-rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     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 }

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