зеркало из https://github.com/mozilla/gecko-dev.git
50 строки
1.5 KiB
C++
50 строки
1.5 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#ifndef nsPrinterListBase_h__
|
|
#define nsPrinterListBase_h__
|
|
|
|
#include "nsIPrinterList.h"
|
|
|
|
#include "nsCycleCollectionParticipant.h"
|
|
#include "nsISupportsImpl.h"
|
|
#include "nsString.h"
|
|
|
|
class nsPrinterListBase : public nsIPrinterList {
|
|
public:
|
|
using Promise = mozilla::dom::Promise;
|
|
|
|
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
|
|
NS_DECL_CYCLE_COLLECTION_CLASS(nsPrinterListBase)
|
|
NS_IMETHOD GetPrinters(JSContext*, Promise**) final;
|
|
|
|
struct PrinterInfo {
|
|
// Both windows and CUPS: The name of the printer.
|
|
nsString mName;
|
|
// CUPS only: Two handles to owned cups_dest_t / cups_dinfo_t objects.
|
|
void* mCupsHandles[2]{nullptr, nullptr};
|
|
};
|
|
|
|
// Called off the main thread, collect information to create an appropriate
|
|
// list of printers.
|
|
virtual nsTArray<PrinterInfo> GetPrinters() const = 0;
|
|
|
|
// Create an nsIPrinter object given the information we obtained from the
|
|
// background thread.
|
|
virtual RefPtr<nsIPrinter> CreatePrinter(PrinterInfo) const = 0;
|
|
|
|
// No copy or move, we're an identity.
|
|
nsPrinterListBase(const nsPrinterListBase&) = delete;
|
|
nsPrinterListBase(nsPrinterListBase&&) = delete;
|
|
|
|
protected:
|
|
nsPrinterListBase();
|
|
virtual ~nsPrinterListBase();
|
|
|
|
RefPtr<Promise> mPrintersPromise;
|
|
};
|
|
|
|
#endif
|