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[core] add ability to transform URLs before they're requested from the Internet

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This commit is contained in:
Konstantin Käfer
2017-02-16 18:28:07 +01:00
parent 8669f933fd
commit e2d8a83664
4 changed files with 45 additions and 0 deletions
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13
platform/default/default_file_source.cpp
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@@ -46,6 +46,10 @@ public:
return onlineFileSource.getAccessToken();
}
void setResourceTransform(OnlineFileSource::ResourceTransform&& transform) {
onlineFileSource.setResourceTransform(std::move(transform));
}
void listRegions(std::function<void (std::exception_ptr, optional<std::vector<OfflineRegion>>)> callback) {
try {
callback({}, offlineDatabase.listRegions());
@@ -187,6 +191,15 @@ std::string DefaultFileSource::getAccessToken() const {
return thread->invokeSync(&Impl::getAccessToken);
}
void DefaultFileSource::setResourceTransform(std::function<std::string(Resource::Kind, std::string&&)> transform) {
auto loop = util::RunLoop::Get();
thread->invoke(&Impl::setResourceTransform, [loop, transform](Resource::Kind kind_, std::string&& url_, auto callback_) {
return loop->invokeWithCallback([transform](Resource::Kind kind, std::string&& url, auto callback) {
callback(transform(kind, std::move(url)));
}, kind_, std::move(url_), callback_);
});
}
std::unique_ptr<AsyncRequest> DefaultFileSource::request(const Resource& resource, Callback callback) {
class DefaultFileRequest : public AsyncRequest {
public: