1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/mobile/android/base/preferences/SearchEnginePreference.java Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,155 @@
1.4 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.5 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.6 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.7 +
1.8 +package org.mozilla.gecko.preferences;
1.9 +
1.10 +import org.json.JSONException;
1.11 +import org.json.JSONObject;
1.12 +import org.mozilla.gecko.R;
1.13 +import org.mozilla.gecko.favicons.Favicons;
1.14 +import org.mozilla.gecko.favicons.decoders.FaviconDecoder;
1.15 +import org.mozilla.gecko.util.ThreadUtils;
1.16 +import org.mozilla.gecko.widget.FaviconView;
1.17 +
1.18 +import android.app.AlertDialog;
1.19 +import android.content.Context;
1.20 +import android.graphics.Bitmap;
1.21 +import android.graphics.drawable.BitmapDrawable;
1.22 +import android.text.SpannableString;
1.23 +import android.util.Log;
1.24 +import android.view.View;
1.25 +import android.widget.Toast;
1.26 +
1.27 +/**
1.28 + * Represents an element in the list of search engines on the preferences menu.
1.29 + */
1.30 +public class SearchEnginePreference extends CustomListPreference {
1.31 + protected String LOGTAG = "SearchEnginePreference";
1.32 +
1.33 + protected static final int INDEX_REMOVE_BUTTON = 1;
1.34 +
1.35 + // The icon to display in the prompt when clicked.
1.36 + private BitmapDrawable mPromptIcon;
1.37 +
1.38 + // The bitmap backing the drawable above - needed separately for the FaviconView.
1.39 + private Bitmap mIconBitmap;
1.40 +
1.41 + private FaviconView mFaviconView;
1.42 +
1.43 + public SearchEnginePreference(Context context, SearchPreferenceCategory parentCategory) {
1.44 + super(context, parentCategory);
1.45 + }
1.46 +
1.47 + /**
1.48 + * Called by Android when we're bound to the custom view. Allows us to set the custom properties
1.49 + * of our custom view elements as we desire (We can now use findViewById on them).
1.50 + *
1.51 + * @param view The view instance for this Preference object.
1.52 + */
1.53 + @Override
1.54 + protected void onBindView(View view) {
1.55 + super.onBindView(view);
1.56 +
1.57 + // Set the icon in the FaviconView.
1.58 + mFaviconView = ((FaviconView) view.findViewById(R.id.search_engine_icon));
1.59 + mFaviconView.updateAndScaleImage(mIconBitmap, getTitle().toString());
1.60 + }
1.61 +
1.62 + @Override
1.63 + protected int getPreferenceLayoutResource() {
1.64 + return R.layout.preference_search_engine;
1.65 + }
1.66 +
1.67 + /**
1.68 + * Returns the strings to be displayed in the dialog.
1.69 + */
1.70 + @Override
1.71 + protected String[] createDialogItems() {
1.72 + return new String[] { LABEL_SET_AS_DEFAULT,
1.73 + LABEL_REMOVE };
1.74 + }
1.75 +
1.76 + @Override
1.77 + public void showDialog() {
1.78 + // If this is the last engine, then we are the default, and none of the options
1.79 + // on this menu can do anything.
1.80 + if (mParentCategory.getPreferenceCount() == 1) {
1.81 + ThreadUtils.postToUiThread(new Runnable() {
1.82 + @Override
1.83 + public void run() {
1.84 + Toast.makeText(getContext(), R.string.pref_search_last_toast, Toast.LENGTH_SHORT).show();
1.85 + }
1.86 + });
1.87 + return;
1.88 + }
1.89 +
1.90 + super.showDialog();
1.91 + }
1.92 +
1.93 + @Override
1.94 + protected void configureDialogBuilder(AlertDialog.Builder builder) {
1.95 + // Copy the icon from this object to the prompt we produce. We lazily create the drawable,
1.96 + // as the user may not ever actually tap this object.
1.97 + if (mPromptIcon == null && mIconBitmap != null) {
1.98 + mPromptIcon = new BitmapDrawable(getContext().getResources(), mFaviconView.getBitmap());
1.99 + }
1.100 +
1.101 + builder.setIcon(mPromptIcon);
1.102 + }
1.103 +
1.104 + @Override
1.105 + protected void onDialogIndexClicked(int index) {
1.106 + switch (index) {
1.107 + case INDEX_SET_DEFAULT_BUTTON:
1.108 + mParentCategory.setDefault(this);
1.109 + break;
1.110 +
1.111 + case INDEX_REMOVE_BUTTON:
1.112 + mParentCategory.uninstall(this);
1.113 + break;
1.114 +
1.115 + default:
1.116 + Log.w(LOGTAG, "Selected index out of range.");
1.117 + break;
1.118 + }
1.119 + }
1.120 +
1.121 + /**
1.122 + * Configure this Preference object from the Gecko search engine JSON object.
1.123 + * @param geckoEngineJSON The Gecko-formatted JSON object representing the search engine.
1.124 + * @throws JSONException If the JSONObject is invalid.
1.125 + */
1.126 + public void setSearchEngineFromJSON(JSONObject geckoEngineJSON) throws JSONException {
1.127 + final String engineName = geckoEngineJSON.getString("name");
1.128 + final SpannableString titleSpannable = new SpannableString(engineName);
1.129 +
1.130 + setTitle(titleSpannable);
1.131 +
1.132 + final String iconURI = geckoEngineJSON.getString("iconURI");
1.133 + // Keep a reference to the bitmap - we'll need it later in onBindView.
1.134 + try {
1.135 + final int desiredWidth;
1.136 + if (mFaviconView != null) {
1.137 + desiredWidth = mFaviconView.getWidth();
1.138 + } else {
1.139 + // largestFaviconSize is initialized when Favicons is attached to a
1.140 + // context, which occurs during GeckoApp.onCreate. That might not
1.141 + // ever happen (leaving it at 0), so we fall back.
1.142 + if (Favicons.largestFaviconSize == 0) {
1.143 + desiredWidth = 128;
1.144 + } else {
1.145 + desiredWidth = Favicons.largestFaviconSize;
1.146 + }
1.147 + }
1.148 +
1.149 + // TODO: use the cache. Bug 961600.
1.150 + mIconBitmap = FaviconDecoder.getMostSuitableBitmapFromDataURI(iconURI, desiredWidth);
1.151 +
1.152 + } catch (IllegalArgumentException e) {
1.153 + Log.e(LOGTAG, "IllegalArgumentException creating Bitmap. Most likely a zero-length bitmap.", e);
1.154 + } catch (NullPointerException e) {
1.155 + Log.e(LOGTAG, "NullPointerException creating Bitmap. Most likely a zero-length bitmap.", e);
1.156 + }
1.157 + }
1.158 +}
