Java tutorial
/* * Copyright 2014 Albert Vaca Cintora <albertvaka@gmail.com> * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of * the License or (at your option) version 3 or any later version * accepted by the membership of KDE e.V. (or its successor approved * by the membership of KDE e.V.), which shall act as a proxy * defined in Section 14 of version 3 of the license. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ package org.kde.kdeconnect.Plugins.MprisPlugin; import android.app.Activity; import android.content.Intent; import android.graphics.drawable.Drawable; import android.os.Handler; import android.os.Message; import android.support.v4.content.ContextCompat; import android.util.Log; import org.kde.kdeconnect.NetworkPackage; import org.kde.kdeconnect.Plugins.Plugin; import org.kde.kdeconnect_tp.R; import java.util.ArrayList; import java.util.HashMap; import java.util.List; public class MprisPlugin extends Plugin { public final static String PACKAGE_TYPE_MPRIS = "kdeconnect.mpris"; public final static String PACKAGE_TYPE_MPRIS_REQUEST = "kdeconnect.mpris.request"; private String player = ""; private boolean playing = false; private String currentSong = ""; private int volume = 50; private long length = -1; private long lastPosition; private long lastPositionTime; private boolean playAllowed = true; private boolean pauseAllowed = true; private boolean goNextAllowed = true; private boolean goPreviousAllowed = true; private boolean seekAllowed = true; private HashMap<String, Handler> playerStatusUpdated = new HashMap<>(); private List<String> playerList = new ArrayList<>(); private HashMap<String, Handler> playerListUpdated = new HashMap<>(); @Override public String getDisplayName() { return context.getResources().getString(R.string.pref_plugin_mpris); } @Override public String getDescription() { return context.getResources().getString(R.string.pref_plugin_mpris_desc); } @Override public Drawable getIcon() { return ContextCompat.getDrawable(context, R.drawable.mpris_plugin_action); } @Override public boolean hasSettings() { return true; } @Override public boolean onCreate() { requestPlayerList(); lastPositionTime = System.currentTimeMillis(); return true; } @Override public void onDestroy() { playerList.clear(); } public void sendAction(String player, String action) { NetworkPackage np = new NetworkPackage(PACKAGE_TYPE_MPRIS_REQUEST); np.set("player", player); np.set("action", action); device.sendPackage(np); } public void sendAction(String action) { sendAction(player, action); } public void setVolume(int volume) { NetworkPackage np = new NetworkPackage(PACKAGE_TYPE_MPRIS_REQUEST); np.set("player", player); np.set("setVolume", volume); device.sendPackage(np); } public void setPosition(int position) { NetworkPackage np = new NetworkPackage(PACKAGE_TYPE_MPRIS_REQUEST); np.set("player", player); np.set("SetPosition", position); device.sendPackage(np); this.lastPosition = position; this.lastPositionTime = System.currentTimeMillis(); } public void Seek(int offset) { NetworkPackage np = new NetworkPackage(PACKAGE_TYPE_MPRIS_REQUEST); np.set("player", player); np.set("Seek", offset); device.sendPackage(np); } @Override public boolean onPackageReceived(NetworkPackage np) { if (np.has("nowPlaying") || np.has("volume") || np.has("isPlaying") || np.has("length") || np.has("pos")) { if (np.getString("player").equals(player)) { currentSong = np.getString("nowPlaying", currentSong); volume = np.getInt("volume", volume); length = np.getLong("length", length); if (np.has("pos")) { lastPosition = np.getLong("pos", lastPosition); lastPositionTime = System.currentTimeMillis(); } playing = np.getBoolean("isPlaying", playing); playAllowed = np.getBoolean("canPlay", playAllowed); pauseAllowed = np.getBoolean("canPause", pauseAllowed); goNextAllowed = np.getBoolean("canGoNext", goNextAllowed); goPreviousAllowed = np.getBoolean("canGoPrevious", goPreviousAllowed); seekAllowed = np.getBoolean("canSeek", seekAllowed); for (String key : playerStatusUpdated.keySet()) { try { playerStatusUpdated.get(key).dispatchMessage(new Message()); } catch (Exception e) { e.printStackTrace(); Log.e("MprisControl", "Exception"); playerStatusUpdated.remove(key); } } } } List<String> newPlayerList = np.getStringList("playerList"); if (newPlayerList != null) { boolean equals = false; if (newPlayerList.size() == playerList.size()) { equals = true; for (int i = 0; i < newPlayerList.size(); i++) { if (!newPlayerList.get(i).equals(playerList.get(i))) { equals = false; break; } } } if (!equals) { playerList = newPlayerList; for (String key : playerListUpdated.keySet()) { try { playerListUpdated.get(key).dispatchMessage(new Message()); } catch (Exception e) { e.printStackTrace(); Log.e("MprisControl", "Exception"); playerListUpdated.remove(key); } } } } return true; } @Override public String[] getSupportedPackageTypes() { return new String[] { PACKAGE_TYPE_MPRIS }; } @Override public String[] getOutgoingPackageTypes() { return new String[] { PACKAGE_TYPE_MPRIS_REQUEST }; } public void setPlayerStatusUpdatedHandler(String id, Handler h) { playerStatusUpdated.put(id, h); h.dispatchMessage(new Message()); //Get the status if this is the first handler we have if (playerListUpdated.size() == 1) { requestPlayerStatus(); } } public void setPlayerListUpdatedHandler(String id, Handler h) { playerListUpdated.put(id, h); h.dispatchMessage(new Message()); //Get the status if this is the first handler we have if (playerListUpdated.size() == 1) { requestPlayerList(); } } public void setPlayer(String player) { if (player == null || player.equals(this.player)) return; this.player = player; currentSong = ""; volume = 50; playing = false; playAllowed = true; pauseAllowed = true; goNextAllowed = true; goPreviousAllowed = true; seekAllowed = true; for (String key : playerStatusUpdated.keySet()) { try { playerStatusUpdated.get(key).dispatchMessage(new Message()); } catch (Exception e) { e.printStackTrace(); Log.e("MprisControl", "Exception"); playerStatusUpdated.remove(key); } } requestPlayerStatus(); } public List<String> getPlayerList() { return playerList; } public String getCurrentSong() { return currentSong; } public String getPlayer() { return player; } public int getVolume() { return volume; } public long getLength() { return length; } public boolean isPlaying() { return playing; } public boolean isPlayAllowed() { return playAllowed; } public boolean isPauseAllowed() { return pauseAllowed; } public boolean isGoNextAllowed() { return goNextAllowed; } public boolean isGoPreviousAllowed() { return goPreviousAllowed; } public boolean isSeekAllowed() { return seekAllowed; } public long getPosition() { if (playing) { return lastPosition + (System.currentTimeMillis() - lastPositionTime); } else { return lastPosition; } } private void requestPlayerList() { NetworkPackage np = new NetworkPackage(PACKAGE_TYPE_MPRIS_REQUEST); np.set("requestPlayerList", true); device.sendPackage(np); } private void requestPlayerStatus() { NetworkPackage np = new NetworkPackage(PACKAGE_TYPE_MPRIS_REQUEST); np.set("player", player); np.set("requestNowPlaying", true); np.set("requestVolume", true); device.sendPackage(np); } @Override public boolean hasMainActivity() { return true; } @Override public void startMainActivity(Activity parentActivity) { Intent intent = new Intent(parentActivity, MprisActivity.class); intent.putExtra("deviceId", device.getDeviceId()); parentActivity.startActivity(intent); } @Override public String getActionName() { return context.getString(R.string.open_mpris_controls); } }