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// Copyright 2016 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_LOCAL_PRINTER_HANDLER_DEFAULT_H_
#define CHROME_BROWSER_UI_WEBUI_PRINT_PREVIEW_LOCAL_PRINTER_HANDLER_DEFAULT_H_
#include <memory>
#include <string>
#include "base/functional/callback_forward.h"
#include "base/memory/raw_ptr.h"
#include "base/memory/scoped_refptr.h"
#include "base/values.h"
#include "chrome/browser/ui/webui/print_preview/printer_handler.h"
#include "printing/backend/print_backend.h"
#include "printing/buildflags/buildflags.h"
#if BUILDFLAG(ENABLE_OOP_PRINTING)
#include "base/memory/weak_ptr.h"
#include "base/time/time.h"
#include "chrome/services/printing/public/mojom/print_backend_service.mojom-forward.h"
#endif
namespace base {
class TaskRunner;
}
namespace content {
class WebContents;
}
namespace printing {
class LocalPrinterHandlerDefault : public PrinterHandler {
public:
explicit LocalPrinterHandlerDefault(
content::WebContents* preview_web_contents);
LocalPrinterHandlerDefault(const LocalPrinterHandlerDefault&) = delete;
LocalPrinterHandlerDefault& operator=(const LocalPrinterHandlerDefault&) =
delete;
~LocalPrinterHandlerDefault() override;
// PrinterHandler implementation.
void Reset() override;
void GetDefaultPrinter(DefaultPrinterCallback cb) 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;
private:
static PrinterList EnumeratePrintersOnBlockingTaskRunner(
const std::string& locale);
static base::Value::Dict FetchCapabilitiesOnBlockingTaskRunner(
const std::string& device_name,
const std::string& locale);
static std::string GetDefaultPrinterOnBlockingTaskRunner(
const std::string& locale);
#if BUILDFLAG(ENABLE_OOP_PRINTING)
void OnDidGetDefaultPrinterNameFromPrintBackendService(
base::TimeTicks query_start_time,
DefaultPrinterCallback callback,
mojom::DefaultPrinterNameResultPtr result);
void OnDidEnumeratePrintersFromPrintBackendService(
base::TimeTicks query_start_time,
AddedPrintersCallback added_printers_callback,
GetPrintersDoneCallback done_callback,
mojom::PrinterListResultPtr result);
void OnDidFetchCapabilitiesFromPrintBackendService(
const std::string& device_name,
bool elevated_privileges,
base::TimeTicks query_start_time,
GetCapabilityCallback callback,
mojom::PrinterCapsAndInfoResultPtr result);
#endif
const raw_ptr<content::WebContents> preview_web_contents_;
// TaskRunner for blocking tasks. Threading behavior is platform-specific.
scoped_refptr<base::TaskRunner> const task_runner_;
#if BUILDFLAG(ENABLE_OOP_PRINTING)
base::WeakPtrFactory<LocalPrinterHandlerDefault> weak_ptr_factory_{this};
#endif
};
} // namespace printing
#endif // CHROME_BROWSER_UI_WEBUI_PRINT_PREVIEW_LOCAL_PRINTER_HANDLER_DEFAULT_H_
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