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// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_UI_WEBUI_PRINT_PREVIEW_EXTENSION_PRINTER_HANDLER_H_
#define CHROME_BROWSER_UI_WEBUI_PRINT_PREVIEW_EXTENSION_PRINTER_HANDLER_H_
#include <memory>
#include <string>
#include <vector>
#include "base/memory/raw_ptr.h"
#include "base/memory/weak_ptr.h"
#include "base/values.h"
#include "chrome/browser/ui/webui/print_preview/printer_handler.h"
#include "extensions/browser/api/printer_provider/printer_provider_api.h"
namespace base {
class RefCountedMemory;
}
namespace cloud_devices {
class CloudDeviceDescription;
}
namespace gfx {
class Size;
}
class Profile;
namespace printing {
class PwgRasterConverter;
// Implementation of PrinterHandler interface backed by printerProvider
// extension API.
class ExtensionPrinterHandler : public PrinterHandler {
public:
using PrintJobCallback = base::OnceCallback<void(
std::unique_ptr<extensions::PrinterProviderPrintJob>)>;
explicit ExtensionPrinterHandler(Profile* profile);
ExtensionPrinterHandler(const ExtensionPrinterHandler&) = delete;
ExtensionPrinterHandler& operator=(const ExtensionPrinterHandler&) = delete;
~ExtensionPrinterHandler() override;
// PrinterHandler implementation:
void Reset() override;
void StartGetPrinters(AddedPrintersCallback added_printers_callback,
GetPrintersDoneCallback done_callback) override;
void StartGetCapability(const std::string& destination_id,
GetCapabilityCallback callback) override;
void StartPrint(const std::u16string& job_title,
base::Value::Dict settings,
scoped_refptr<base::RefCountedMemory> print_data,
PrintCallback callback) override;
void StartGrantPrinterAccess(const std::string& printer_id,
GetPrinterInfoCallback callback) override;
private:
friend class ExtensionPrinterHandlerTest;
void SetPwgRasterConverterForTesting(
std::unique_ptr<PwgRasterConverter> pwg_raster_converter);
// Converts `data` to PWG raster format (from PDF) for a printer described
// by `printer_description` and a given `print_ticket`.
// `callback` is called with the converted data.
void ConvertToPWGRaster(
scoped_refptr<base::RefCountedMemory> data,
const cloud_devices::CloudDeviceDescription& printer_description,
const cloud_devices::CloudDeviceDescription& print_ticket,
const gfx::Size& page_size,
std::unique_ptr<extensions::PrinterProviderPrintJob> job,
PrintJobCallback callback);
// Sets print job document data and dispatches it using printerProvider API.
void DispatchPrintJob(
PrintCallback callback,
std::unique_ptr<extensions::PrinterProviderPrintJob> print_job);
// Methods used as wrappers to callbacks for extensions::PrinterProviderAPI
// methods, primarily so the callbacks can be bound to this class' weak ptr.
// They just propagate results to callbacks passed to them.
void WrapGetPrintersCallback(AddedPrintersCallback callback,
base::Value::List printers,
bool done);
void WrapGetCapabilityCallback(GetCapabilityCallback callback,
base::Value::Dict capability);
void WrapPrintCallback(PrintCallback callback, const base::Value& status);
void WrapGetPrinterInfoCallback(GetPrinterInfoCallback callback,
base::Value::Dict printer_info);
void OnUsbDevicesEnumerated(
AddedPrintersCallback callback,
std::vector<device::mojom::UsbDeviceInfoPtr> devices);
const raw_ptr<Profile> profile_;
GetPrintersDoneCallback done_callback_;
PrintJobCallback print_job_callback_;
std::unique_ptr<PwgRasterConverter> pwg_raster_converter_;
int pending_enumeration_count_ = 0;
base::WeakPtrFactory<ExtensionPrinterHandler> weak_ptr_factory_{this};
};
} // namespace printing
#endif // CHROME_BROWSER_UI_WEBUI_PRINT_PREVIEW_EXTENSION_PRINTER_HANDLER_H_
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