42 lines
1.5 KiB
C
42 lines
1.5 KiB
C
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// Copyright (c) 2024 Microsoft, GmbH.
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// Use of this source code is governed by the MIT license that can be
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// found in the LICENSE file.
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#ifndef ELECTRON_SHELL_BROWSER_PRINTING_PRINTING_UTILS_H_
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#define ELECTRON_SHELL_BROWSER_PRINTING_PRINTING_UTILS_H_
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#include <string>
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#include "base/memory/scoped_refptr.h"
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#include "base/task/task_runner.h"
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namespace gfx {
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class Size;
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}
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namespace electron {
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// This function returns the per-platform default printer's DPI.
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gfx::Size GetDefaultPrinterDPI(const std::u16string& device_name);
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// This will return false if no printer with the provided device_name can be
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// found on the network. We need to check this because Chromium does not do
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// sanity checking of device_name validity and so will crash on invalid names.
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bool IsDeviceNameValid(const std::u16string& device_name);
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// This function returns a validated device name.
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// If the user passed one to webContents.print(), we check that it's valid and
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// return it or fail if the network doesn't recognize it. If the user didn't
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// pass a device name, we first try to return the system default printer. If one
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// isn't set, then pull all the printers and use the first one or fail if none
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// exist.
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std::pair<std::string, std::u16string> GetDeviceNameToUse(
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const std::u16string& device_name);
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// This function creates a task runner for use with printing tasks.
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scoped_refptr<base::TaskRunner> CreatePrinterHandlerTaskRunner();
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} // namespace electron
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#endif // ELECTRON_SHELL_BROWSER_PRINTING_PRINTING_UTILS_H_
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