db497b3200
The methodology used to generate this CL is documented in https://crbug.com/1098010#c95. No-Try: true Bug: 1098010 Change-Id: I6ae92e5d7ccbf73b176588124b2f8b4067f805b3 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3900575 Reviewed-by: Mark Mentovai <mark@chromium.org> Owners-Override: Avi Drissman <avi@chromium.org> Commit-Queue: Avi Drissman <avi@chromium.org> Auto-Submit: Avi Drissman <avi@chromium.org> Cr-Commit-Position: refs/heads/main@{#1047628}
61 lines
1.8 KiB
C++
61 lines
1.8 KiB
C++
// Copyright 2010 The Chromium Authors
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef PDF_LOADER_DOCUMENT_LOADER_H_
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#define PDF_LOADER_DOCUMENT_LOADER_H_
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#include <stddef.h>
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#include <stdint.h>
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#include <memory>
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#include <string>
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namespace chrome_pdf {
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class URLLoaderWrapper;
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class DocumentLoader {
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public:
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class Client {
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public:
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virtual ~Client() = default;
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// Creates new URLLoader based on client settings.
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virtual std::unique_ptr<URLLoaderWrapper> CreateURLLoader() = 0;
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// Notification called when all outstanding pending requests are complete.
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virtual void OnPendingRequestComplete() = 0;
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// Notification called when new data is available.
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virtual void OnNewDataReceived() = 0;
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// Notification called when document is fully loaded.
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virtual void OnDocumentComplete() = 0;
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// Notification called when document loading is canceled.
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virtual void OnDocumentCanceled() = 0;
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};
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virtual ~DocumentLoader() = default;
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virtual bool Init(std::unique_ptr<URLLoaderWrapper> loader,
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const std::string& url) = 0;
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// Data access interface. Return true if successful.
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virtual bool GetBlock(uint32_t position, uint32_t size, void* buf) const = 0;
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// Data availability interface. Return true if data is available.
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virtual bool IsDataAvailable(uint32_t position, uint32_t size) const = 0;
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// Data request interface.
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virtual void RequestData(uint32_t position, uint32_t size) = 0;
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virtual bool IsDocumentComplete() const = 0;
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virtual uint32_t GetDocumentSize() const = 0;
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virtual uint32_t BytesReceived() const = 0;
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// Clear pending requests from the queue.
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virtual void ClearPendingRequests() = 0;
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};
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} // namespace chrome_pdf
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#endif // PDF_LOADER_DOCUMENT_LOADER_H_
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