Rename http folder to backend to better align with the classes inside

app/backend/boxartmanager.cpp

@@ -0,0 +1,77 @@
+#include "boxartmanager.h"
+
+#include <QStandardPaths>
+#include <QImageReader>
+#include <QImageWriter>
+
+BoxArtManager::BoxArtManager(QObject *parent) :
+    QObject(parent),
+    m_BoxArtDir(
+        QStandardPaths::writableLocation(QStandardPaths::CacheLocation) + "/boxart"),
+    m_PlaceholderImage(":/res/no_app_image.png")
+{
+    if (!m_BoxArtDir.exists()) {
+        m_BoxArtDir.mkpath(".");
+    }
+}
+
+QString
+BoxArtManager::getFilePathForBoxArt(NvComputer* computer, int appId)
+{
+    QDir dir = m_BoxArtDir;
+
+    // Create the cache directory if it did not already exist
+    if (!dir.exists(computer->uuid)) {
+        dir.mkdir(computer->uuid);
+    }
+
+    // Change to this computer's box art cache folder
+    dir.cd(computer->uuid);
+
+    // Try to open the cached file
+    return dir.filePath(QString::number(appId) + ".png");
+}
+
+QImage BoxArtManager::loadBoxArt(NvComputer* computer, NvApp& app)
+{
+    // Try to open the cached file
+    QFile cacheFile(getFilePathForBoxArt(computer, app.id));
+    if (cacheFile.open(QFile::ReadOnly)) {
+        // Return what we have if it's a valid image
+        QImage image = QImageReader(&cacheFile).read();
+        if (!image.isNull()) {
+            return image;
+        }
+    }
+
+    // If we get here, we need to fetch asynchronously.
+    // Kick off a worker on our thread pool to do just that.
+    NetworkBoxArtLoadTask* netLoadTask = new NetworkBoxArtLoadTask(this, computer, app);
+    QThreadPool::globalInstance()->start(netLoadTask);
+
+    // Return the placeholder then we can notify the caller
+    // later when the real image is ready.
+    return m_PlaceholderImage;
+}
+
+void BoxArtManager::handleBoxArtLoadComplete(NvComputer* computer, NvApp app, QImage image)
+{
+    emit boxArtLoadComplete(computer, app, image);
+}
+
+QImage BoxArtManager::loadBoxArtFromNetwork(NvComputer* computer, int appId)
+{
+    NvHTTP http(computer->activeAddress);
+
+    QImage image;
+    try {
+        image = http.getBoxArt(appId);
+    } catch (...) {}
+
+    // Cache the box art on disk if it loaded
+    if (!image.isNull()) {
+        image.save(getFilePathForBoxArt(computer, appId));
+    }
+
+    return image;
+}