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c33509f455
This also removes the fix from bug 1677388, which worked in some circumstances, but is effectively superseded by this one. Removing that fix also reduces potential contention for copying the default DEVMODE. Differential Revision: https://phabricator.services.mozilla.com/D112635
48 lines
1.8 KiB
C++
48 lines
1.8 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef nsPrinterWin_h_
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#define nsPrinterWin_h_
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#include "nsPrinterBase.h"
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#include "mozilla/DataMutex.h"
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#include "nsTArrayForwardDeclare.h"
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class nsPrinterWin final : public nsPrinterBase {
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public:
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NS_IMETHOD GetName(nsAString& aName) override;
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NS_IMETHOD GetSystemName(nsAString& aName) override;
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bool SupportsDuplex() const final;
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bool SupportsColor() const final;
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bool SupportsMonochrome() const final;
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bool SupportsCollation() const final;
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PrinterInfo CreatePrinterInfo() const final;
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MarginDouble GetMarginsForPaper(nsString aPaperId) const final;
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nsPrinterWin() = delete;
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static already_AddRefed<nsPrinterWin> Create(
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const mozilla::CommonPaperInfoArray* aPaperInfoArray,
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const nsAString& aName);
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private:
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nsPrinterWin(const mozilla::CommonPaperInfoArray* aPaperInfoArray,
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const nsAString& aName);
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~nsPrinterWin() = default;
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nsTArray<uint8_t> CopyDefaultDevmodeW() const;
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nsTArray<mozilla::PaperInfo> PaperList() const;
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PrintSettingsInitializer DefaultSettings() const;
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const nsString mName;
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mutable mozilla::DataMutex<nsTArray<uint8_t>> mDefaultDevmodeWStorage;
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// Even though some documentation seems to suggest that you should be able to
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// use printer drivers on separate threads if you have separate handles, we
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// see threading issues with multiple drivers. This Mutex is used to lock
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// around all calls to DeviceCapabilitiesW, DocumentPropertiesW and
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// CreateICW/DCW, to hopefully prevent these issues.
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mutable mozilla::Mutex mDriverMutex{"nsPrinterWin::Driver"};
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};
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#endif // nsPrinterWin_h_
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