34 lines
921 B
C++
34 lines
921 B
C++
#pragma once
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#include <QVariant>
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#include <memory>
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class Resource;
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/** Base class for things that can retrieve a resource.
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*
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* Subclass, provide a constructor that takes a single QString as argument, and
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* call Resource::registerHandler<MyResourceHandler>("<id>"), where <id> is the
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* prefix of the resource ("web", "icon", etc.)
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*/
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class ResourceHandler
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{
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public:
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virtual ~ResourceHandler() {}
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void setResource(Resource *resource) { m_resource = resource; }
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// reimplement this if you need to do something after you have been put in a shared pointer
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virtual void init(std::shared_ptr<ResourceHandler>&) {}
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QVariant result() const { return m_result; }
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protected: // use these methods to notify the resource of changes
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void setResult(const QVariant &result);
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void setFailure(const QString &reason);
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void setProgress(const int progress);
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private:
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QVariant m_result;
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Resource *m_resource = nullptr;
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};
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