Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 360 insertions, 0 deletions

diff --git a/widget/windows/nsPrintDialogUtil.cpp b/widget/windows/nsPrintDialogUtil.cpp
new file mode 100644
index 0000000000..43f56e9706
--- /dev/null
+++ b/widget/windows/nsPrintDialogUtil.cpp
@@ -0,0 +1,360 @@
+/* -*- Mode: C++; tab-width: 2; 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/. */
+
+/* -------------------------------------------------------------------
+To Build This:
+
+  You need to add this to the the makefile.win in mozilla/dom/base:
+
+        .\$(OBJDIR)\nsFlyOwnPrintDialog.obj	\
+
+
+  And this to the makefile.win in mozilla/content/build:
+
+WIN_LIBS=                                       \
+        winspool.lib                           \
+        comctl32.lib                           \
+        comdlg32.lib
+
+---------------------------------------------------------------------- */
+
+#include <windows.h>
+#include <tchar.h>
+
+#include <unknwn.h>
+#include <commdlg.h>
+
+#include "mozilla/BackgroundHangMonitor.h"
+#include "mozilla/ScopeExit.h"
+#include "mozilla/Span.h"
+#include "nsString.h"
+#include "nsReadableUtils.h"
+#include "nsIPrintSettings.h"
+#include "nsIPrintSettingsWin.h"
+#include "nsIPrinterList.h"
+#include "nsServiceManagerUtils.h"
+
+#include "nsRect.h"
+
+#include "nsCRT.h"
+#include "prenv.h" /* for PR_GetEnv */
+
+#include <windows.h>
+#include <winspool.h>
+
+// For Localization
+
+// For NS_CopyUnicodeToNative
+#include "nsNativeCharsetUtils.h"
+
+// This is for extending the dialog
+#include <dlgs.h>
+
+#include "nsWindowsHelpers.h"
+#include "WinUtils.h"
+
+//-----------------------------------------------
+// Global Data
+//-----------------------------------------------
+
+static HWND gParentWnd = nullptr;
+
+//----------------------------------------------------------------------------------
+// Returns a Global Moveable Memory Handle to a DevMode
+// from the Printer by the name of aPrintName
+//
+// NOTE:
+//   This function assumes that aPrintName has already been converted from
+//   unicode
+//
+static nsReturnRef<nsHGLOBAL> CreateGlobalDevModeAndInit(
+    const nsString& aPrintName, nsIPrintSettings* aPS) {
+  nsHPRINTER hPrinter = nullptr;
+  // const cast kludge for silly Win32 api's
+  LPWSTR printName =
+      const_cast<wchar_t*>(static_cast<const wchar_t*>(aPrintName.get()));
+  BOOL status = ::OpenPrinterW(printName, &hPrinter, nullptr);
+  if (!status) {
+    return nsReturnRef<nsHGLOBAL>();
+  }
+
+  // Make sure hPrinter is closed on all paths
+  nsAutoPrinter autoPrinter(hPrinter);
+
+  // Get the buffer size
+  LONG needed = ::DocumentPropertiesW(gParentWnd, hPrinter, printName, nullptr,
+                                      nullptr, 0);
+  if (needed < 0) {
+    return nsReturnRef<nsHGLOBAL>();
+  }
+
+  // Some drivers do not return the correct size for their DEVMODE, so we
+  // over-allocate to try and compensate.
+  // (See https://bugzilla.mozilla.org/show_bug.cgi?id=1664530#c5)
+  needed *= 2;
+  nsAutoDevMode newDevMode(
+      (LPDEVMODEW)::HeapAlloc(::GetProcessHeap(), HEAP_ZERO_MEMORY, needed));
+  if (!newDevMode) {
+    return nsReturnRef<nsHGLOBAL>();
+  }
+
+  nsHGLOBAL hDevMode = ::GlobalAlloc(GHND, needed);
+  nsAutoGlobalMem globalDevMode(hDevMode);
+  if (!hDevMode) {
+    return nsReturnRef<nsHGLOBAL>();
+  }
+
+  LONG ret = ::DocumentPropertiesW(gParentWnd, hPrinter, printName, newDevMode,
+                                   nullptr, DM_OUT_BUFFER);
+  if (ret != IDOK) {
+    return nsReturnRef<nsHGLOBAL>();
+  }
+
+  // Lock memory and copy contents from DEVMODE (current printer)
+  // to Global Memory DEVMODE
+  LPDEVMODEW devMode = (DEVMODEW*)::GlobalLock(hDevMode);
+  if (!devMode) {
+    return nsReturnRef<nsHGLOBAL>();
+  }
+
+  memcpy(devMode, newDevMode.get(), needed);
+  // Initialize values from the PrintSettings
+  nsCOMPtr<nsIPrintSettingsWin> psWin = do_QueryInterface(aPS);
+  MOZ_ASSERT(psWin);
+  psWin->CopyToNative(devMode);
+
+  // Sets back the changes we made to the DevMode into the Printer Driver
+  ret = ::DocumentPropertiesW(gParentWnd, hPrinter, printName, devMode, devMode,
+                              DM_IN_BUFFER | DM_OUT_BUFFER);
+  if (ret != IDOK) {
+    ::GlobalUnlock(hDevMode);
+    return nsReturnRef<nsHGLOBAL>();
+  }
+
+  ::GlobalUnlock(hDevMode);
+
+  return globalDevMode.out();
+}
+
+//------------------------------------------------------------------
+// helper
+static void GetDefaultPrinterNameFromGlobalPrinters(nsAString& aPrinterName) {
+  aPrinterName.Truncate();
+  nsCOMPtr<nsIPrinterList> printerList =
+      do_GetService("@mozilla.org/gfx/printerlist;1");
+  if (printerList) {
+    printerList->GetSystemDefaultPrinterName(aPrinterName);
+  }
+}
+
+//------------------------------------------------------------------
+// Displays the native Print Dialog
+nsresult NativeShowPrintDialog(HWND aHWnd, bool aHaveSelection,
+                               nsIPrintSettings* aPrintSettings) {
+  // NS_ENSURE_ARG_POINTER(aHWnd);
+  NS_ENSURE_ARG_POINTER(aPrintSettings);
+
+  // Get the Print Name to be used
+  nsString printerName;
+  aPrintSettings->GetPrinterName(printerName);
+
+  // If there is no name then use the default printer
+  if (printerName.IsEmpty()) {
+    GetDefaultPrinterNameFromGlobalPrinters(printerName);
+  } else {
+    HANDLE hPrinter = nullptr;
+    if (!::OpenPrinterW(const_cast<wchar_t*>(
+                            static_cast<const wchar_t*>(printerName.get())),
+                        &hPrinter, nullptr)) {
+      // If the last used printer is not found, we should use default printer.
+      GetDefaultPrinterNameFromGlobalPrinters(printerName);
+    } else {
+      ::ClosePrinter(hPrinter);
+    }
+  }
+
+  // Now create a DEVNAMES struct so the the dialog is initialized correctly.
+
+  uint32_t len = printerName.Length();
+  nsHGLOBAL hDevNames =
+      ::GlobalAlloc(GHND, sizeof(wchar_t) * (len + 1) + sizeof(DEVNAMES));
+  nsAutoGlobalMem autoDevNames(hDevNames);
+  if (!hDevNames) {
+    return NS_ERROR_OUT_OF_MEMORY;
+  }
+
+  DEVNAMES* pDevNames = (DEVNAMES*)::GlobalLock(hDevNames);
+  if (!pDevNames) {
+    return NS_ERROR_FAILURE;
+  }
+  pDevNames->wDriverOffset = sizeof(DEVNAMES) / sizeof(wchar_t);
+  pDevNames->wDeviceOffset = sizeof(DEVNAMES) / sizeof(wchar_t);
+  pDevNames->wOutputOffset = sizeof(DEVNAMES) / sizeof(wchar_t) + len;
+  pDevNames->wDefault = 0;
+
+  memcpy(pDevNames + 1, printerName.get(), (len + 1) * sizeof(wchar_t));
+  ::GlobalUnlock(hDevNames);
+
+  // Create a Moveable Memory Object that holds a new DevMode
+  // from the Printer Name
+  // The PRINTDLG.hDevMode requires that it be a moveable memory object
+  // NOTE: autoDevMode is automatically freed when any error occurred
+  nsAutoGlobalMem autoDevMode(
+      CreateGlobalDevModeAndInit(printerName, aPrintSettings));
+
+  // Prepare to Display the Print Dialog
+  // https://docs.microsoft.com/en-us/previous-versions/windows/desktop/legacy/ms646942(v=vs.85)
+  // https://docs.microsoft.com/en-us/windows/win32/api/commdlg/ns-commdlg-printdlgexw
+  PRINTDLGEXW prntdlg;
+  memset(&prntdlg, 0, sizeof(prntdlg));
+
+  prntdlg.lStructSize = sizeof(prntdlg);
+  prntdlg.hwndOwner = aHWnd;
+  prntdlg.hDevMode = autoDevMode.get();
+  prntdlg.hDevNames = hDevNames;
+  prntdlg.hDC = nullptr;
+  prntdlg.Flags = PD_ALLPAGES | PD_RETURNIC | PD_USEDEVMODECOPIESANDCOLLATE |
+                  PD_COLLATE | PD_NOCURRENTPAGE;
+
+  // If there is a current selection then enable the "Selection" radio button
+  if (!aHaveSelection) {
+    prntdlg.Flags |= PD_NOSELECTION;
+  }
+
+  // 10 seems like a reasonable max number of ranges to support by default if
+  // the user doesn't choose a greater thing in the UI.
+  constexpr size_t kMinSupportedRanges = 10;
+
+  AutoTArray<PRINTPAGERANGE, kMinSupportedRanges> winPageRanges;
+  // Set up the page ranges.
+  {
+    AutoTArray<int32_t, kMinSupportedRanges * 2> pageRanges;
+    aPrintSettings->GetPageRanges(pageRanges);
+    // If there is a specified page range then enable the "Custom" radio button
+    if (!pageRanges.IsEmpty()) {
+      prntdlg.Flags |= PD_PAGENUMS;
+    }
+
+    const size_t specifiedRanges = pageRanges.Length() / 2;
+    const size_t maxRanges = std::max(kMinSupportedRanges, specifiedRanges);
+
+    prntdlg.nMaxPageRanges = maxRanges;
+    prntdlg.nPageRanges = specifiedRanges;
+
+    winPageRanges.SetCapacity(maxRanges);
+    for (size_t i = 0; i < pageRanges.Length(); i += 2) {
+      PRINTPAGERANGE* range = winPageRanges.AppendElement();
+      range->nFromPage = pageRanges[i];
+      range->nToPage = pageRanges[i + 1];
+    }
+    prntdlg.lpPageRanges = winPageRanges.Elements();
+
+    prntdlg.nMinPage = 1;
+    // TODO(emilio): Could probably get the right page number here from the
+    // new print UI.
+    prntdlg.nMaxPage = 0xFFFF;
+  }
+
+  // NOTE(emilio): This can always be 1 because we use the DEVMODE copies
+  // feature (see PD_USEDEVMODECOPIESANDCOLLATE).
+  prntdlg.nCopies = 1;
+
+  prntdlg.hInstance = nullptr;
+  prntdlg.lpPrintTemplateName = nullptr;
+
+  prntdlg.lpCallback = nullptr;
+  prntdlg.nPropertyPages = 0;
+  prntdlg.lphPropertyPages = nullptr;
+
+  prntdlg.nStartPage = START_PAGE_GENERAL;
+  prntdlg.dwResultAction = 0;
+
+  HRESULT result;
+  {
+    mozilla::widget::WinUtils::AutoSystemDpiAware dpiAwareness;
+    mozilla::BackgroundHangMonitor().NotifyWait();
+    result = ::PrintDlgExW(&prntdlg);
+  }
+
+  auto cancelOnExit = mozilla::MakeScopeExit([&] { ::SetFocus(aHWnd); });
+
+  if (NS_WARN_IF(!SUCCEEDED(result))) {
+#ifdef DEBUG
+    printf_stderr("PrintDlgExW failed with %lx\n", result);
+#endif
+    return NS_ERROR_FAILURE;
+  }
+  if (NS_WARN_IF(prntdlg.dwResultAction != PD_RESULT_PRINT)) {
+    return NS_ERROR_ABORT;
+  }
+  // check to make sure we don't have any nullptr pointers
+  NS_ENSURE_TRUE(prntdlg.hDevMode, NS_ERROR_ABORT);
+  NS_ENSURE_TRUE(prntdlg.hDevNames, NS_ERROR_ABORT);
+  // Lock the deviceNames and check for nullptr
+  DEVNAMES* devnames = (DEVNAMES*)::GlobalLock(prntdlg.hDevNames);
+  NS_ENSURE_TRUE(devnames, NS_ERROR_ABORT);
+
+  char16_t* device = &(((char16_t*)devnames)[devnames->wDeviceOffset]);
+  char16_t* driver = &(((char16_t*)devnames)[devnames->wDriverOffset]);
+
+  // Check to see if the "Print To File" control is checked
+  // then take the name from devNames and set it in the PrintSettings
+  //
+  // NOTE:
+  // As per Microsoft SDK documentation the returned value offset from
+  // devnames->wOutputOffset is either "FILE:" or nullptr
+  // if the "Print To File" checkbox is checked it MUST be "FILE:"
+  // We assert as an extra safety check.
+  if (prntdlg.Flags & PD_PRINTTOFILE) {
+    char16ptr_t fileName = &(((wchar_t*)devnames)[devnames->wOutputOffset]);
+    NS_ASSERTION(wcscmp(fileName, L"FILE:") == 0, "FileName must be `FILE:`");
+    aPrintSettings->SetOutputDestination(
+        nsIPrintSettings::kOutputDestinationFile);
+    aPrintSettings->SetToFileName(nsDependentString(fileName));
+  } else {
+    // clear "print to file" info
+    aPrintSettings->SetOutputDestination(
+        nsIPrintSettings::kOutputDestinationPrinter);
+    aPrintSettings->SetToFileName(u""_ns);
+  }
+
+  nsCOMPtr<nsIPrintSettingsWin> psWin(do_QueryInterface(aPrintSettings));
+  MOZ_RELEASE_ASSERT(psWin);
+
+  // Setup local Data members
+  psWin->SetDeviceName(nsDependentString(device));
+  psWin->SetDriverName(nsDependentString(driver));
+
+  // Fill the print options with the info from the dialog
+  aPrintSettings->SetPrinterName(nsDependentString(device));
+  aPrintSettings->SetPrintSelectionOnly(prntdlg.Flags & PD_SELECTION);
+
+  AutoTArray<int32_t, kMinSupportedRanges * 2> pageRanges;
+  if (prntdlg.Flags & PD_PAGENUMS) {
+    pageRanges.SetCapacity(prntdlg.nPageRanges * 2);
+    for (const auto& range :
+         mozilla::Span(prntdlg.lpPageRanges, prntdlg.nPageRanges)) {
+      pageRanges.AppendElement(range.nFromPage);
+      pageRanges.AppendElement(range.nToPage);
+    }
+  }
+  aPrintSettings->SetPageRanges(pageRanges);
+
+  // Unlock DeviceNames
+  ::GlobalUnlock(prntdlg.hDevNames);
+
+  // Transfer the settings from the native data to the PrintSettings
+  LPDEVMODEW devMode = (LPDEVMODEW)::GlobalLock(prntdlg.hDevMode);
+  if (!devMode || !prntdlg.hDC) {
+    return NS_ERROR_FAILURE;
+  }
+  psWin->SetDevMode(devMode);  // copies DevMode
+  psWin->CopyFromNative(prntdlg.hDC, devMode);
+  ::GlobalUnlock(prntdlg.hDevMode);
+  ::DeleteDC(prntdlg.hDC);
+
+  cancelOnExit.release();
+  return NS_OK;
+}