File indexing completed on 2024-05-05 04:48:13
0001 /**************************************************************************************** 0002 * Copyright (c) 2009 Nikolaj Hald Nielsen <nhn@kde.org> * 0003 * Copyright (c) 2012 Matěj Laitl <matej@laitl.cz> * 0004 * * 0005 * This program is free software; you can redistribute it and/or modify it under * 0006 * the terms of the GNU General Public License as published by the Free Software * 0007 * Foundation; either version 2 of the License, or (at your option) any later * 0008 * version. * 0009 * * 0010 * This program is distributed in the hope that it will be useful, but WITHOUT ANY * 0011 * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A * 0012 * PARTICULAR PURPOSE. See the GNU General Public License for more details. * 0013 * * 0014 * You should have received a copy of the GNU General Public License along with * 0015 * this program. If not, see <http://www.gnu.org/licenses/>. * 0016 ****************************************************************************************/ 0017 0018 #ifndef METAMULTISOURCECAPABILITY_H 0019 #define METAMULTISOURCECAPABILITY_H 0020 0021 #include "core/capabilities/Capability.h" 0022 0023 class QUrl; 0024 0025 namespace Capabilities 0026 { 0027 /** 0028 * A capability for tracks that can have several different source urls, such as 0029 * multiple fallback streams for a radio station. If one source url fails or finishes, 0030 * the track will automatically use the next one. It is also possible to get a list 0031 * of all urls that can be presented to the user so tha she can choose. 0032 * 0033 * @author Nikolaj Hald Nielsen <nhn@kde.org> 0034 */ 0035 class AMAROKCORE_EXPORT MultiSourceCapability : public Capability 0036 { 0037 Q_OBJECT 0038 0039 public: 0040 MultiSourceCapability(); 0041 ~MultiSourceCapability() override; 0042 0043 static Type capabilityInterfaceType() { return MultiSource; } 0044 0045 /** 0046 * Return list of displayable urls in this MultiSource. Only for display 0047 * purposes, don't attempt to play these urls. 0048 */ 0049 virtual QStringList sources() const = 0; 0050 0051 /** 0052 * Set current source. Does nothing if @param source is out of bounds. 0053 */ 0054 virtual void setSource( int source ) = 0; 0055 0056 /** 0057 * Get index of the current source 0058 */ 0059 virtual int current() const = 0; 0060 0061 /** 0062 * Return the url of the next source without actually advancing to it. 0063 * Returns empty url if the current source is the last one. 0064 */ 0065 virtual QUrl nextUrl() const = 0; 0066 0067 Q_SIGNALS: 0068 void urlChanged( const QUrl &url ); 0069 }; 0070 } 0071 0072 #endif