зеркало из https://github.com/mozilla/gecko-dev.git
106 строки
3.3 KiB
C++
106 строки
3.3 KiB
C++
/* -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 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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#include "nsPrinterCUPS.h"
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#include "nsPaper.h"
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#include "nsPrinterBase.h"
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using namespace mozilla;
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nsPrinterCUPS::~nsPrinterCUPS() {
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if (mPrinterInfo) {
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mShim.cupsFreeDestInfo(mPrinterInfo);
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mPrinterInfo = nullptr;
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}
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if (mPrinter) {
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mShim.cupsFreeDests(1, mPrinter);
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mPrinter = nullptr;
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}
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}
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NS_IMETHODIMP
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nsPrinterCUPS::GetName(nsAString& aName) {
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if (mDisplayName.IsEmpty()) {
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aName = NS_ConvertUTF8toUTF16(mPrinter->name);
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} else {
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aName = mDisplayName;
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}
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return NS_OK;
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}
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bool nsPrinterCUPS::SupportsDuplex() const {
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return Supports(CUPS_SIDES, CUPS_SIDES_TWO_SIDED_PORTRAIT);
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}
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bool nsPrinterCUPS::SupportsColor() const {
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return Supports(CUPS_PRINT_COLOR_MODE, CUPS_PRINT_COLOR_MODE_COLOR);
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}
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bool nsPrinterCUPS::Supports(const char* option, const char* value) const {
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MOZ_ASSERT(mPrinterInfo);
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return mShim.cupsCheckDestSupported(CUPS_HTTP_DEFAULT, mPrinter, mPrinterInfo,
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option, value);
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}
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nsTArray<PaperInfo> nsPrinterCUPS::PaperList() const {
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if (!mPrinterInfo) {
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return {};
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}
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const int paperCount = mShim.cupsGetDestMediaCount(
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CUPS_HTTP_DEFAULT, mPrinter, mPrinterInfo, CUPS_MEDIA_FLAGS_DEFAULT);
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// blocking call
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http_t* connection = mShim.cupsConnectDest(mPrinter, CUPS_DEST_FLAGS_NONE,
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/* timeout(ms) */ 5000,
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/* cancel */ nullptr,
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/* resource */ nullptr,
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/* resourcesize */ 0,
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/* callback */ nullptr,
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/* user_data */ nullptr);
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if (!connection) {
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return {};
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}
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nsTArray<PaperInfo> paperList;
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for (int i = 0; i < paperCount; ++i) {
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cups_size_t info;
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int getInfoSucceded =
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mShim.cupsGetDestMediaByIndex(CUPS_HTTP_DEFAULT, mPrinter, mPrinterInfo,
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i, CUPS_MEDIA_FLAGS_DEFAULT, &info);
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if (!getInfoSucceded) {
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continue;
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}
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// localizedName is owned by mPrinterInfo.
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// https://www.cups.org/doc/cupspm.html#cupsLocalizeDestMedia
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const char* localizedName = mShim.cupsLocalizeDestMedia(
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connection, mPrinter, mPrinterInfo, CUPS_MEDIA_FLAGS_DEFAULT, &info);
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if (!localizedName) {
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continue;
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}
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// XXX Do we actually have the guarantee that this is utf-8?
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NS_ConvertUTF8toUTF16 name(localizedName);
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const double kPointsPerHundredthMillimeter = 0.0283465;
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paperList.AppendElement(PaperInfo{
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std::move(name),
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{info.width * kPointsPerHundredthMillimeter,
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info.length * kPointsPerHundredthMillimeter},
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Some(MarginDouble{info.top * kPointsPerHundredthMillimeter,
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info.right * kPointsPerHundredthMillimeter,
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info.bottom * kPointsPerHundredthMillimeter,
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info.left * kPointsPerHundredthMillimeter}),
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});
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}
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mShim.httpClose(connection);
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return paperList;
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}
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