Add album cover fetcher (not used yet).

src/albumcoverfetcher.cpp

@@ -0,0 +1,48 @@
+#include "albumcoverfetcher.h"
+
+#include <QNetworkReply>
+
+#include <lastfm/Artist>
+#include <lastfm/XmlQuery>
+#include <lastfm/ws.h>
+
+AlbumCoverFetcher::AlbumCoverFetcher(QObject* parent)
+    : QObject(parent) {
+}
+
+lastfm::Album AlbumCoverFetcher::FetchAlbumCover(
+    const QString& artist_name, const QString& album_name) {
+  lastfm::Artist artist(artist_name);
+  lastfm::Album album(artist, album_name);
+
+  QNetworkReply* reply = album.getInfo();
+  connect(reply, SIGNAL(finished()), SLOT(AlbumGetInfoFinished()));
+  requests_.insert(reply, album);
+  return album;
+}
+
+void AlbumCoverFetcher::AlbumGetInfoFinished() {
+  QNetworkReply* reply = qobject_cast<QNetworkReply*>(sender());
+  reply->deleteLater();
+
+  lastfm::XmlQuery query(lastfm::ws::parse(reply));
+  qDebug() << query["album"]["image size=large"].text();
+
+  QUrl image_url(query["album"]["image size=large"].text());
+  QNetworkReply* image_reply = network_.get(QNetworkRequest(image_url));
+  connect(image_reply, SIGNAL(finished()), SLOT(AlbumCoverFetchFinished()));
+
+  lastfm::Album album = requests_[reply];
+  requests_[image_reply] = album;
+}
+
+void AlbumCoverFetcher::AlbumCoverFetchFinished() {
+  QNetworkReply* reply = qobject_cast<QNetworkReply*>(sender());
+  reply->deleteLater();
+
+  QImage image;
+  image.loadFromData(reply->readAll());
+
+  lastfm::Album album = requests_.take(reply);
+  emit AlbumCoverFetched(album, image);
+}

src/albumcoverfetcher.h

@@ -0,0 +1,35 @@
+#ifndef ALBUMCOVERFETCHER_H
+#define ALBUMCOVERFETCHER_H
+
+#include <QImage>
+#include <QMap>
+#include <QNetworkAccessManager>
+#include <QObject>
+
+#include <lastfm/Album>
+
+class QNetworkReply;
+class QString;
+
+class AlbumCoverFetcher : public QObject {
+  Q_OBJECT
+
+ public:
+  AlbumCoverFetcher(QObject* parent = 0);
+  virtual ~AlbumCoverFetcher() {}
+
+  lastfm::Album FetchAlbumCover(const QString& artist, const QString& album);
+
+ signals:
+  void AlbumCoverFetched(lastfm::Album, QImage cover);
+
+ private slots:
+  void AlbumGetInfoFinished();
+  void AlbumCoverFetchFinished();
+
+ private:
+  QNetworkAccessManager network_;
+  QMap<QNetworkReply*, lastfm::Album> requests_;
+};
+
+#endif  // ALBUMCOVERFETCHER_H

src/lastfmservice.cpp

@@ -32,9 +32,6 @@ LastFMService::LastFMService(QObject* parent)
     friends_list_(NULL),
     neighbours_list_(NULL)
 {
-  lastfm::ws::ApiKey = kApiKey;
-  lastfm::ws::SharedSecret = kSecret;
-
   ReloadSettings();
 
   play_action_ = context_menu_->addAction(

src/main.cpp

@@ -4,8 +4,9 @@
 #  include <iostream>
 #endif // Q_OS_WIN32
 
-#include "mainwindow.h"
 #include "directory.h"
+#include "lastfmservice.h"
+#include "mainwindow.h"
 #include "song.h"
 
 #include <QtSingleApplication>
@@ -22,6 +23,9 @@ int main(int argc, char *argv[]) {
   qRegisterMetaType<DirectoryList>("DirectoryList");
   qRegisterMetaType<SongList>("SongList");
 
+  lastfm::ws::ApiKey = LastFMService::kApiKey;
+  lastfm::ws::SharedSecret = LastFMService::kSecret;
+
   QtSingleApplication a(argc, argv);
 
   if (a.isRunning()) {

src/src.pro

@@ -51,7 +51,8 @@ SOURCES += main.cpp \
     librarydirectorymodel.cpp \
     libraryconfigdialog.cpp \
     lastfmconfigdialog.cpp \
-    about.cpp
+    about.cpp \
+    albumcoverfetcher.cpp
 HEADERS += mainwindow.h \
     player.h \
     library.h \
@@ -103,7 +104,8 @@ HEADERS += mainwindow.h \
     librarydirectorymodel.h \
     libraryconfigdialog.h \
     lastfmconfigdialog.h \
-    about.h
+    about.h \
+    albumcoverfetcher.h
 FORMS += mainwindow.ui \
     libraryconfig.ui \
     fileview.ui \