1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/mobile/android/base/preferences/SearchPreferenceCategory.java Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,134 @@
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 android.content.Context;
1.11 +import android.preference.Preference;
1.12 +import android.util.AttributeSet;
1.13 +import android.util.Log;
1.14 +
1.15 +import org.json.JSONArray;
1.16 +import org.json.JSONException;
1.17 +import org.json.JSONObject;
1.18 +
1.19 +import org.mozilla.gecko.GeckoAppShell;
1.20 +import org.mozilla.gecko.GeckoEvent;
1.21 +import org.mozilla.gecko.util.GeckoEventListener;
1.22 +import org.mozilla.gecko.util.ThreadUtils;
1.23 +
1.24 +public class SearchPreferenceCategory extends CustomListCategory implements GeckoEventListener {
1.25 + public static final String LOGTAG = "SearchPrefCategory";
1.26 +
1.27 + public SearchPreferenceCategory(Context context) {
1.28 + super(context);
1.29 + }
1.30 +
1.31 + public SearchPreferenceCategory(Context context, AttributeSet attrs) {
1.32 + super(context, attrs);
1.33 + }
1.34 +
1.35 + public SearchPreferenceCategory(Context context, AttributeSet attrs, int defStyle) {
1.36 + super(context, attrs, defStyle);
1.37 + }
1.38 +
1.39 + @Override
1.40 + protected void onAttachedToActivity() {
1.41 + super.onAttachedToActivity();
1.42 +
1.43 + // Register for SearchEngines messages and request list of search engines from Gecko.
1.44 + GeckoAppShell.registerEventListener("SearchEngines:Data", this);
1.45 + GeckoAppShell.sendEventToGecko(GeckoEvent.createBroadcastEvent("SearchEngines:GetVisible", null));
1.46 + }
1.47 +
1.48 + @Override
1.49 + protected void onPrepareForRemoval() {
1.50 + GeckoAppShell.unregisterEventListener("SearchEngines:Data", this);
1.51 + }
1.52 +
1.53 + @Override
1.54 + public void setDefault(CustomListPreference item) {
1.55 + super.setDefault(item);
1.56 +
1.57 + sendGeckoEngineEvent("SearchEngines:SetDefault", item.getTitle().toString());
1.58 + }
1.59 +
1.60 + @Override
1.61 + public void uninstall(CustomListPreference item) {
1.62 + super.uninstall(item);
1.63 +
1.64 + sendGeckoEngineEvent("SearchEngines:Remove", item.getTitle().toString());
1.65 + }
1.66 +
1.67 + @Override
1.68 + public void handleMessage(String event, final JSONObject data) {
1.69 + if (event.equals("SearchEngines:Data")) {
1.70 + // Parse engines array from JSON.
1.71 + JSONArray engines;
1.72 + try {
1.73 + engines = data.getJSONArray("searchEngines");
1.74 + } catch (JSONException e) {
1.75 + Log.e(LOGTAG, "Unable to decode search engine data from Gecko.", e);
1.76 + return;
1.77 + }
1.78 +
1.79 + // Clear the preferences category from this thread.
1.80 + this.removeAll();
1.81 +
1.82 + // Create an element in this PreferenceCategory for each engine.
1.83 + for (int i = 0; i < engines.length(); i++) {
1.84 + try {
1.85 + JSONObject engineJSON = engines.getJSONObject(i);
1.86 + final String engineName = engineJSON.getString("name");
1.87 +
1.88 + final SearchEnginePreference enginePreference = new SearchEnginePreference(getContext(), this);
1.89 + enginePreference.setSearchEngineFromJSON(engineJSON);
1.90 + enginePreference.setOnPreferenceClickListener(new OnPreferenceClickListener() {
1.91 + @Override
1.92 + public boolean onPreferenceClick(Preference preference) {
1.93 + SearchEnginePreference sPref = (SearchEnginePreference) preference;
1.94 + // Display the configuration dialog associated with the tapped engine.
1.95 + sPref.showDialog();
1.96 + return true;
1.97 + }
1.98 + });
1.99 +
1.100 + addPreference(enginePreference);
1.101 +
1.102 + // The first element in the array is the default engine.
1.103 + if (i == 0) {
1.104 + // We set this here, not in setSearchEngineFromJSON, because it allows us to
1.105 + // keep a reference to the default engine to use when the AlertDialog
1.106 + // callbacks are used.
1.107 + ThreadUtils.postToUiThread(new Runnable() {
1.108 + @Override
1.109 + public void run() {
1.110 + enginePreference.setIsDefault(true);
1.111 + }
1.112 + });
1.113 + mDefaultReference = enginePreference;
1.114 + }
1.115 + } catch (JSONException e) {
1.116 + Log.e(LOGTAG, "JSONException parsing engine at index " + i, e);
1.117 + }
1.118 + }
1.119 + }
1.120 + }
1.121 +
1.122 + /**
1.123 + * Helper method to send a particular event string to Gecko with an associated engine name.
1.124 + * @param event The type of event to send.
1.125 + * @param engine The engine to which the event relates.
1.126 + */
1.127 + private void sendGeckoEngineEvent(String event, String engineName) {
1.128 + JSONObject json = new JSONObject();
1.129 + try {
1.130 + json.put("engine", engineName);
1.131 + } catch (JSONException e) {
1.132 + Log.e(LOGTAG, "JSONException creating search engine configuration change message for Gecko.", e);
1.133 + return;
1.134 + }
1.135 + GeckoAppShell.notifyGeckoOfEvent(GeckoEvent.createBroadcastEvent(event, json.toString()));
1.136 + }
1.137 +}
