refactor: rename the atom directory to shell
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87
shell/browser/net/node_stream_loader.h
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87
shell/browser/net/node_stream_loader.h
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// Copyright (c) 2019 GitHub, Inc.
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// Use of this source code is governed by the MIT license that can be
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// found in the LICENSE file.
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#ifndef ATOM_BROWSER_NET_NODE_STREAM_LOADER_H_
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#define ATOM_BROWSER_NET_NODE_STREAM_LOADER_H_
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#include <map>
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#include <memory>
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#include <string>
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#include <vector>
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#include "mojo/public/cpp/bindings/strong_binding.h"
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#include "mojo/public/cpp/system/string_data_pipe_producer.h"
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#include "services/network/public/mojom/url_loader.mojom.h"
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#include "v8/include/v8.h"
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namespace atom {
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// Read data from node Stream and feed it to NetworkService.
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//
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// This class manages its own lifetime and should delete itself when the
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// connection is lost or finished.
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//
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// We use |paused mode| to read data from |Readable| stream, so we don't need to
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// copy data from buffer and hold it in memory, and we only need to make sure
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// the passed |Buffer| is alive while writing data to pipe.
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class NodeStreamLoader : public network::mojom::URLLoader {
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public:
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NodeStreamLoader(network::ResourceResponseHead head,
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network::mojom::URLLoaderRequest loader,
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network::mojom::URLLoaderClientPtr client,
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v8::Isolate* isolate,
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v8::Local<v8::Object> emitter);
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private:
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~NodeStreamLoader() override;
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using EventCallback = base::RepeatingCallback<void()>;
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void Start(network::ResourceResponseHead head);
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void NotifyComplete(int result);
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void ReadMore();
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void DidWrite(MojoResult result);
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// Subscribe to events of |emitter|.
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void On(const char* event, EventCallback callback);
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// URLLoader:
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void FollowRedirect(const std::vector<std::string>& removed_headers,
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const net::HttpRequestHeaders& modified_headers,
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const base::Optional<GURL>& new_url) override {}
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void ProceedWithResponse() override {}
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void SetPriority(net::RequestPriority priority,
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int32_t intra_priority_value) override {}
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void PauseReadingBodyFromNet() override {}
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void ResumeReadingBodyFromNet() override {}
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mojo::Binding<network::mojom::URLLoader> binding_;
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network::mojom::URLLoaderClientPtr client_;
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v8::Isolate* isolate_;
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v8::Global<v8::Object> emitter_;
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v8::Global<v8::Value> buffer_;
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// Mojo data pipe where the data that is being read is written to.
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std::unique_ptr<mojo::StringDataPipeProducer> producer_;
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// Whether we are in the middle of write.
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bool is_writing_ = false;
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// When NotifyComplete is called while writing, we will save the result and
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// quit with it after the write is done.
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bool ended_ = false;
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int result_ = net::OK;
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// Store the V8 callbacks to unsubscribe them later.
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std::map<std::string, v8::Global<v8::Value>> handlers_;
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base::WeakPtrFactory<NodeStreamLoader> weak_factory_;
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DISALLOW_COPY_AND_ASSIGN(NodeStreamLoader);
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};
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} // namespace atom
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#endif // ATOM_BROWSER_NET_NODE_STREAM_LOADER_H_
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