Add method to access downloads information in JavaScript

examples/example/downloadInfoExample.js

@@ -0,0 +1,25 @@
+//
+//  downloadInfoExample.js
+//  examples/example
+//
+//  Created by David Rowe on 5 Jan 2015
+//  Copyright 2015 High Fidelity, Inc.
+//
+//  Display downloads information the same as in the stats.
+//
+//  Distributed under the Apache License, Version 2.0.
+//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
+//
+
+// Get and log the current downloads info ...
+
+var downloadInfo,
+    downloadInfoString;
+
+downloadInfo = GlobalServices.getDownloadInfo();
+downloadInfoString = "Downloads: ";
+if (downloadInfo.downloading.length > 0) {
+    downloadInfoString += downloadInfo.downloading.join("% ") + "% ";
+}
+downloadInfoString += "(" + downloadInfo.pending.toFixed(0) + " pending)";
+print(downloadInfoString);

interface/src/Application.cpp

@@ -3669,6 +3669,7 @@ void Application::registerScriptEngineWithApplicationServices(ScriptEngine* scri
     scriptEngine->registerGlobalObject("Metavoxels", &_metavoxels);
 
     scriptEngine->registerGlobalObject("GlobalServices", GlobalServicesScriptingInterface::getInstance());
+    qScriptRegisterMetaType(scriptEngine, DownloadInfoResultToScriptValue, DownloadInfoResultFromScriptValue);
 
     scriptEngine->registerGlobalObject("AvatarManager", &_avatarManager);
     

interface/src/scripting/GlobalServicesScriptingInterface.cpp

@@ -11,6 +11,7 @@
 
 #include "AccountManager.h"
 #include "XmppClient.h"
+#include "ResourceCache.h"
 
 #include "GlobalServicesScriptingInterface.h"
 
@@ -113,3 +114,43 @@ void GlobalServicesScriptingInterface::messageReceived(const QXmppMessage& messa
     emit GlobalServicesScriptingInterface::incomingMessage(message.from().right(message.from().count() - 1 - publicChatRoom->jid().count()), message.body());
 }
 #endif // HAVE_QXMPP
+
+DownloadInfoResult GlobalServicesScriptingInterface::getDownloadInfo() {
+    DownloadInfoResult result;
+    foreach(Resource* resource, ResourceCache::getLoadingRequests()) {
+        result.downloading.append(resource->getProgress() * 100.0f);
+    }
+    result.pending = ResourceCache::getPendingRequestCount();
+
+    return result;
+}
+
+
+DownloadInfoResult::DownloadInfoResult() :
+    downloading(QList<float>()),
+    pending(0.0f)
+{
+}
+
+QScriptValue DownloadInfoResultToScriptValue(QScriptEngine* engine, const DownloadInfoResult& result) {
+    QScriptValue object = engine->newObject();
+
+    QScriptValue array = engine->newArray(result.downloading.count());
+    for (int i = 0; i < result.downloading.count(); i += 1) {
+        array.setProperty(i, result.downloading[i]);
+    }
+
+    object.setProperty("downloading", array);
+    object.setProperty("pending", result.pending);
+    return object;
+}
+
+void DownloadInfoResultFromScriptValue(const QScriptValue& object, DownloadInfoResult& result) {
+    QList<QVariant> downloading = object.property("downloading").toVariant().toList();
+    result.downloading.clear();
+    for (int i = 0; i < downloading.count(); i += 1) {
+        result.downloading.append(downloading[i].toFloat());
+    }
+
+    result.pending = object.property("pending").toVariant().toFloat();
+}

interface/src/scripting/GlobalServicesScriptingInterface.h

@@ -26,6 +26,19 @@
 
 #endif // HAVE_QXMPP
 
+class DownloadInfoResult {
+public:
+    DownloadInfoResult();
+    QList<float> downloading;  // List of percentages
+    float pending;
+};
+
+Q_DECLARE_METATYPE(DownloadInfoResult)
+
+QScriptValue DownloadInfoResultToScriptValue(QScriptEngine* engine, const DownloadInfoResult& result);
+void DownloadInfoResultFromScriptValue(const QScriptValue& object, DownloadInfoResult& result);
+
+
 class GlobalServicesScriptingInterface : public QObject {
     Q_OBJECT
     Q_PROPERTY(bool isConnected READ isConnected)
@@ -42,6 +55,7 @@ public:
 
 public slots:
     QScriptValue chat(const QString& message);
+    DownloadInfoResult getDownloadInfo();
 
 private slots:
     void loggedOut();