The Tor Browser / file comparison
comparison: mobile/android/base/home/PanelInfoManager.java
mobile/android/base/home/PanelInfoManager.java
- branch
- TOR_BUG_3246
- changeset 4
- fc2d59ddac77
equal
deleted
inserted
replaced
| -1:000000000000 | 0:b21663a49931 |
|---|---|
| 1 /* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; 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/. */ | |
| 5 | |
| 6 package org.mozilla.gecko.home; | |
| 7 | |
| 8 import java.util.ArrayList; | |
| 9 import java.util.List; | |
| 10 import java.util.Set; | |
| 11 import java.util.concurrent.atomic.AtomicInteger; | |
| 12 | |
| 13 import org.json.JSONArray; | |
| 14 import org.json.JSONException; | |
| 15 import org.json.JSONObject; | |
| 16 import org.mozilla.gecko.GeckoAppShell; | |
| 17 import org.mozilla.gecko.GeckoEvent; | |
| 18 import org.mozilla.gecko.home.HomeConfig.PanelConfig; | |
| 19 import org.mozilla.gecko.util.GeckoEventListener; | |
| 20 import org.mozilla.gecko.util.ThreadUtils; | |
| 21 | |
| 22 import android.util.Log; | |
| 23 import android.util.SparseArray; | |
| 24 | |
| 25 public class PanelInfoManager implements GeckoEventListener { | |
| 26 private static final String LOGTAG = "GeckoPanelInfoManager"; | |
| 27 | |
| 28 public class PanelInfo { | |
| 29 private final String mId; | |
| 30 private final String mTitle; | |
| 31 private final JSONObject mJSONData; | |
| 32 | |
| 33 public PanelInfo(String id, String title, JSONObject jsonData) { | |
| 34 mId = id; | |
| 35 mTitle = title; | |
| 36 mJSONData = jsonData; | |
| 37 } | |
| 38 | |
| 39 public String getId() { | |
| 40 return mId; | |
| 41 } | |
| 42 | |
| 43 public String getTitle() { | |
| 44 return mTitle; | |
| 45 } | |
| 46 | |
| 47 public PanelConfig toPanelConfig() { | |
| 48 try { | |
| 49 return new PanelConfig(mJSONData); | |
| 50 } catch (Exception e) { | |
| 51 Log.e(LOGTAG, "Failed to convert PanelInfo to PanelConfig", e); | |
| 52 return null; | |
| 53 } | |
| 54 } | |
| 55 } | |
| 56 | |
| 57 public interface RequestCallback { | |
| 58 public void onComplete(List<PanelInfo> panelInfos); | |
| 59 } | |
| 60 | |
| 61 private static AtomicInteger sRequestId = new AtomicInteger(0); | |
| 62 | |
| 63 // Stores set of pending request callbacks. | |
| 64 private static final SparseArray<RequestCallback> sCallbacks = new SparseArray<RequestCallback>(); | |
| 65 | |
| 66 /** | |
| 67 * Asynchronously fetches list of available panels from Gecko | |
| 68 * for the given IDs. | |
| 69 * | |
| 70 * @param ids list of panel ids to be fetched. A null value will fetch all | |
| 71 * available panels. | |
| 72 * @param callback onComplete will be called on the UI thread. | |
| 73 */ | |
| 74 public void requestPanelsById(Set<String> ids, RequestCallback callback) { | |
| 75 final int requestId = sRequestId.getAndIncrement(); | |
| 76 | |
| 77 synchronized(sCallbacks) { | |
| 78 // If there are no pending callbacks, register the event listener. | |
| 79 if (sCallbacks.size() == 0) { | |
| 80 GeckoAppShell.getEventDispatcher().registerEventListener("HomePanels:Data", this); | |
| 81 } | |
| 82 sCallbacks.put(requestId, callback); | |
| 83 } | |
| 84 | |
| 85 final JSONObject message = new JSONObject(); | |
| 86 try { | |
| 87 message.put("requestId", requestId); | |
| 88 | |
| 89 if (ids != null && ids.size() > 0) { | |
| 90 JSONArray idsArray = new JSONArray(); | |
| 91 for (String id : ids) { | |
| 92 idsArray.put(id); | |
| 93 } | |
| 94 | |
| 95 message.put("ids", idsArray); | |
| 96 } | |
| 97 } catch (JSONException e) { | |
| 98 Log.e(LOGTAG, "Failed to build event to request panels by id", e); | |
| 99 return; | |
| 100 } | |
| 101 | |
| 102 GeckoAppShell.sendEventToGecko(GeckoEvent.createBroadcastEvent("HomePanels:Get", message.toString())); | |
| 103 } | |
| 104 | |
| 105 /** | |
| 106 * Asynchronously fetches list of available panels from Gecko. | |
| 107 * | |
| 108 * @param callback onComplete will be called on the UI thread. | |
| 109 */ | |
| 110 public void requestAvailablePanels(RequestCallback callback) { | |
| 111 requestPanelsById(null, callback); | |
| 112 } | |
| 113 | |
| 114 /** | |
| 115 * Handles "HomePanels:Data" events. | |
| 116 */ | |
| 117 @Override | |
| 118 public void handleMessage(String event, JSONObject message) { | |
| 119 final ArrayList<PanelInfo> panelInfos = new ArrayList<PanelInfo>(); | |
| 120 | |
| 121 try { | |
| 122 final JSONArray panels = message.getJSONArray("panels"); | |
| 123 final int count = panels.length(); | |
| 124 for (int i = 0; i < count; i++) { | |
| 125 final PanelInfo panelInfo = getPanelInfoFromJSON(panels.getJSONObject(i)); | |
| 126 panelInfos.add(panelInfo); | |
| 127 } | |
| 128 | |
| 129 final RequestCallback callback; | |
| 130 final int requestId = message.getInt("requestId"); | |
| 131 | |
| 132 synchronized(sCallbacks) { | |
| 133 callback = sCallbacks.get(requestId); | |
| 134 sCallbacks.delete(requestId); | |
| 135 | |
| 136 // Unregister the event listener if there are no more pending callbacks. | |
| 137 if (sCallbacks.size() == 0) { | |
| 138 GeckoAppShell.getEventDispatcher().unregisterEventListener("HomePanels:Data", this); | |
| 139 } | |
| 140 } | |
| 141 | |
| 142 ThreadUtils.postToUiThread(new Runnable() { | |
| 143 @Override | |
| 144 public void run() { | |
| 145 callback.onComplete(panelInfos); | |
| 146 } | |
| 147 }); | |
| 148 } catch (JSONException e) { | |
| 149 Log.e(LOGTAG, "Exception handling " + event + " message", e); | |
| 150 } | |
| 151 } | |
| 152 | |
| 153 private PanelInfo getPanelInfoFromJSON(JSONObject jsonPanelInfo) throws JSONException { | |
| 154 final String id = jsonPanelInfo.getString("id"); | |
| 155 final String title = jsonPanelInfo.getString("title"); | |
| 156 | |
| 157 return new PanelInfo(id, title, jsonPanelInfo); | |
| 158 } | |
| 159 } |
