diff options
Diffstat (limited to 'logic/resources/Resource.cpp')
| -rw-r--r-- | logic/resources/Resource.cpp | 41 |
1 files changed, 24 insertions, 17 deletions
diff --git a/logic/resources/Resource.cpp b/logic/resources/Resource.cpp index 3cc6b648..e95675d7 100644 --- a/logic/resources/Resource.cpp +++ b/logic/resources/Resource.cpp @@ -2,38 +2,45 @@ #include <QDebug> -#include "WebResourceHandler.h" -#include "IconResourceHandler.h" #include "ResourceObserver.h" +#include "ResourceHandler.h" // definition of static members of Resource QMap<QString, std::function<std::shared_ptr<ResourceHandler>(const QString &)>> Resource::m_handlers; QMap<QPair<int, int>, std::function<QVariant(QVariant)>> Resource::m_transfomers; QMap<QString, std::weak_ptr<Resource>> Resource::m_resources; +struct NullResourceResult {}; +Q_DECLARE_METATYPE(NullResourceResult) +class NullResourceHandler : public ResourceHandler +{ +public: + explicit NullResourceHandler() + { + setResult(QVariant::fromValue<NullResourceResult>(NullResourceResult())); + } +}; + Resource::Resource(const QString &resource) : m_resource(resource) { - // register default handlers - // QUESTION: move elsewhere? - if (!m_handlers.contains("web")) + if (!resource.isEmpty()) { - registerHandler<WebResourceHandler>("web"); + // a valid resource identifier has the format <id>:<data> + Q_ASSERT(resource.contains(':')); + // "parse" the resource identifier into id and data + const QString resourceId = resource.left(resource.indexOf(':')); + const QString resourceData = resource.mid(resource.indexOf(':') + 1); + + // create and set up the handler + Q_ASSERT(m_handlers.contains(resourceId)); + m_handler = m_handlers.value(resourceId)(resourceData); } - if (!m_handlers.contains("icon")) + else { - registerHandler<IconResourceHandler>("icon"); + m_handler = std::make_shared<NullResourceHandler>(); } - // a valid resource identifier has the format <id>:<data> - Q_ASSERT(resource.contains(':')); - // "parse" the resource identifier into id and data - const QString resourceId = resource.left(resource.indexOf(':')); - const QString resourceData = resource.mid(resource.indexOf(':') + 1); - - // create and set up the handler - Q_ASSERT(m_handlers.contains(resourceId)); - m_handler = m_handlers.value(resourceId)(resourceData); Q_ASSERT(m_handler); m_handler->init(m_handler); m_handler->setResource(this); |