Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream

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

1 files changed, 1196 insertions, 0 deletions

diff --git a/dom/base/nsGlobalWindowCommands.cpp b/dom/base/nsGlobalWindowCommands.cpp
new file mode 100644
index 0000000000..e732eae1ef
--- /dev/null
+++ b/dom/base/nsGlobalWindowCommands.cpp
@@ -0,0 +1,1196 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* 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/. */
+
+#include "nsGlobalWindowCommands.h"
+
+#include "nsIInterfaceRequestor.h"
+#include "nsIInterfaceRequestorUtils.h"
+#include "nsCommandParams.h"
+#include "nsCRT.h"
+#include "nsString.h"
+#include "mozilla/ArrayUtils.h"
+#include "mozilla/Preferences.h"
+#include "mozilla/PresShell.h"
+
+#include "nsControllerCommandTable.h"
+
+#include "nsPIDOMWindow.h"
+#include "nsIDocShell.h"
+#include "nsISelectionController.h"
+#include "nsIWebNavigation.h"
+#include "nsIContentViewerEdit.h"
+#include "nsIContentViewer.h"
+#include "nsFocusManager.h"
+#include "nsCopySupport.h"
+#include "nsIClipboard.h"
+#include "ContentEventHandler.h"
+#include "nsContentUtils.h"
+#include "mozilla/Attributes.h"
+#include "mozilla/BasicEvents.h"
+#include "mozilla/HTMLEditor.h"
+#include "mozilla/TextEditor.h"
+#include "mozilla/TextEvents.h"
+#include "mozilla/dom/Document.h"
+#include "mozilla/dom/Selection.h"
+#include "mozilla/intl/WordBreaker.h"
+#include "mozilla/layers/KeyboardMap.h"
+
+using namespace mozilla;
+using namespace mozilla::layers;
+
+constexpr const char* sSelectAllString = "cmd_selectAll";
+constexpr const char* sSelectNoneString = "cmd_selectNone";
+constexpr const char* sCopyImageLocationString = "cmd_copyImageLocation";
+constexpr const char* sCopyImageContentsString = "cmd_copyImageContents";
+constexpr const char* sCopyImageString = "cmd_copyImage";
+
+constexpr const char* sScrollTopString = "cmd_scrollTop";
+constexpr const char* sScrollBottomString = "cmd_scrollBottom";
+constexpr const char* sScrollPageUpString = "cmd_scrollPageUp";
+constexpr const char* sScrollPageDownString = "cmd_scrollPageDown";
+constexpr const char* sScrollLineUpString = "cmd_scrollLineUp";
+constexpr const char* sScrollLineDownString = "cmd_scrollLineDown";
+constexpr const char* sScrollLeftString = "cmd_scrollLeft";
+constexpr const char* sScrollRightString = "cmd_scrollRight";
+constexpr const char* sMoveTopString = "cmd_moveTop";
+constexpr const char* sMoveBottomString = "cmd_moveBottom";
+constexpr const char* sMovePageUpString = "cmd_movePageUp";
+constexpr const char* sMovePageDownString = "cmd_movePageDown";
+constexpr const char* sLinePreviousString = "cmd_linePrevious";
+constexpr const char* sLineNextString = "cmd_lineNext";
+constexpr const char* sCharPreviousString = "cmd_charPrevious";
+constexpr const char* sCharNextString = "cmd_charNext";
+
+// These are so the browser can use editor navigation key bindings
+// helps with accessibility (boolean pref accessibility.browsewithcaret)
+
+constexpr const char* sSelectCharPreviousString = "cmd_selectCharPrevious";
+constexpr const char* sSelectCharNextString = "cmd_selectCharNext";
+
+constexpr const char* sWordPreviousString = "cmd_wordPrevious";
+constexpr const char* sWordNextString = "cmd_wordNext";
+constexpr const char* sSelectWordPreviousString = "cmd_selectWordPrevious";
+constexpr const char* sSelectWordNextString = "cmd_selectWordNext";
+
+constexpr const char* sBeginLineString = "cmd_beginLine";
+constexpr const char* sEndLineString = "cmd_endLine";
+constexpr const char* sSelectBeginLineString = "cmd_selectBeginLine";
+constexpr const char* sSelectEndLineString = "cmd_selectEndLine";
+
+constexpr const char* sSelectLinePreviousString = "cmd_selectLinePrevious";
+constexpr const char* sSelectLineNextString = "cmd_selectLineNext";
+
+constexpr const char* sSelectPageUpString = "cmd_selectPageUp";
+constexpr const char* sSelectPageDownString = "cmd_selectPageDown";
+
+constexpr const char* sSelectTopString = "cmd_selectTop";
+constexpr const char* sSelectBottomString = "cmd_selectBottom";
+
+// Physical-direction movement and selection commands
+constexpr const char* sMoveLeftString = "cmd_moveLeft";
+constexpr const char* sMoveRightString = "cmd_moveRight";
+constexpr const char* sMoveUpString = "cmd_moveUp";
+constexpr const char* sMoveDownString = "cmd_moveDown";
+constexpr const char* sMoveLeft2String = "cmd_moveLeft2";
+constexpr const char* sMoveRight2String = "cmd_moveRight2";
+constexpr const char* sMoveUp2String = "cmd_moveUp2";
+constexpr const char* sMoveDown2String = "cmd_moveDown2";
+
+constexpr const char* sSelectLeftString = "cmd_selectLeft";
+constexpr const char* sSelectRightString = "cmd_selectRight";
+constexpr const char* sSelectUpString = "cmd_selectUp";
+constexpr const char* sSelectDownString = "cmd_selectDown";
+constexpr const char* sSelectLeft2String = "cmd_selectLeft2";
+constexpr const char* sSelectRight2String = "cmd_selectRight2";
+constexpr const char* sSelectUp2String = "cmd_selectUp2";
+constexpr const char* sSelectDown2String = "cmd_selectDown2";
+
+#if 0
+#  pragma mark -
+#endif
+
+// a base class for selection-related commands, for code sharing
+class nsSelectionCommandsBase : public nsIControllerCommand {
+ public:
+  NS_DECL_ISUPPORTS
+  NS_IMETHOD IsCommandEnabled(const char* aCommandName,
+                              nsISupports* aCommandContext,
+                              bool* _retval) override;
+  NS_IMETHOD GetCommandStateParams(const char* aCommandName,
+                                   nsICommandParams* aParams,
+                                   nsISupports* aCommandContext) override;
+  MOZ_CAN_RUN_SCRIPT
+  NS_IMETHOD DoCommandParams(const char* aCommandName,
+                             nsICommandParams* aParams,
+                             nsISupports* aCommandContext) override;
+
+ protected:
+  virtual ~nsSelectionCommandsBase() = default;
+
+  static nsresult GetPresShellFromWindow(nsPIDOMWindowOuter* aWindow,
+                                         PresShell** aPresShell);
+  static nsresult GetSelectionControllerFromWindow(
+      nsPIDOMWindowOuter* aWindow, nsISelectionController** aSelCon);
+
+  // no member variables, please, we're stateless!
+};
+
+// this class implements commands whose behavior depends on the 'browse with
+// caret' setting
+class nsSelectMoveScrollCommand : public nsSelectionCommandsBase {
+ public:
+  NS_IMETHOD DoCommand(const char* aCommandName,
+                       nsISupports* aCommandContext) override;
+
+  // no member variables, please, we're stateless!
+};
+
+// this class implements physical-movement versions of the above
+class nsPhysicalSelectMoveScrollCommand : public nsSelectionCommandsBase {
+ public:
+  NS_IMETHOD DoCommand(const char* aCommandName,
+                       nsISupports* aCommandContext) override;
+
+  // no member variables, please, we're stateless!
+};
+
+// this class implements other selection commands
+class nsSelectCommand : public nsSelectionCommandsBase {
+ public:
+  NS_IMETHOD DoCommand(const char* aCommandName,
+                       nsISupports* aCommandContext) override;
+
+  // no member variables, please, we're stateless!
+};
+
+// this class implements physical-movement versions of selection commands
+class nsPhysicalSelectCommand : public nsSelectionCommandsBase {
+ public:
+  NS_IMETHOD DoCommand(const char* aCommandName,
+                       nsISupports* aCommandContext) override;
+
+  // no member variables, please, we're stateless!
+};
+
+#if 0
+#  pragma mark -
+#endif
+
+NS_IMPL_ISUPPORTS(nsSelectionCommandsBase, nsIControllerCommand)
+
+NS_IMETHODIMP
+nsSelectionCommandsBase::IsCommandEnabled(const char* aCommandName,
+                                          nsISupports* aCommandContext,
+                                          bool* outCmdEnabled) {
+  // XXX this needs fixing. e.g. you can't scroll up if you're already at the
+  // top of the document.
+  *outCmdEnabled = true;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsSelectionCommandsBase::GetCommandStateParams(const char* aCommandName,
+                                               nsICommandParams* aParams,
+                                               nsISupports* aCommandContext) {
+  // XXX we should probably return the enabled state
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP
+nsSelectionCommandsBase::DoCommandParams(const char* aCommandName,
+                                         nsICommandParams* aParams,
+                                         nsISupports* aCommandContext) {
+  return DoCommand(aCommandName, aCommandContext);
+}
+
+// protected methods
+
+nsresult nsSelectionCommandsBase::GetPresShellFromWindow(
+    nsPIDOMWindowOuter* aWindow, PresShell** aPresShell) {
+  *aPresShell = nullptr;
+  NS_ENSURE_TRUE(aWindow, NS_ERROR_FAILURE);
+
+  nsIDocShell* docShell = aWindow->GetDocShell();
+  NS_ENSURE_TRUE(docShell, NS_ERROR_FAILURE);
+
+  NS_IF_ADDREF(*aPresShell = docShell->GetPresShell());
+  return NS_OK;
+}
+
+nsresult nsSelectionCommandsBase::GetSelectionControllerFromWindow(
+    nsPIDOMWindowOuter* aWindow, nsISelectionController** aSelCon) {
+  RefPtr<PresShell> presShell;
+  GetPresShellFromWindow(aWindow, getter_AddRefs(presShell));
+  if (!presShell) {
+    *aSelCon = nullptr;
+    return NS_ERROR_FAILURE;
+  }
+  *aSelCon = presShell.forget().take();
+  return NS_OK;
+}
+
+#if 0
+#  pragma mark -
+#endif
+
+// Helpers for nsSelectMoveScrollCommand and nsPhysicalSelectMoveScrollCommand
+static void AdjustFocusAfterCaretMove(nsPIDOMWindowOuter* aWindow) {
+  // adjust the focus to the new caret position
+  nsFocusManager* fm = nsFocusManager::GetFocusManager();
+  if (fm) {
+    RefPtr<dom::Element> result;
+    fm->MoveFocus(aWindow, nullptr, nsIFocusManager::MOVEFOCUS_CARET,
+                  nsIFocusManager::FLAG_NOSCROLL, getter_AddRefs(result));
+  }
+}
+
+static bool IsCaretOnInWindow(nsPIDOMWindowOuter* aWindow,
+                              nsISelectionController* aSelCont) {
+  // We allow the caret to be moved with arrow keys on any window for which
+  // the caret is enabled. In particular, this includes caret-browsing mode
+  // in non-chrome documents.
+  bool caretOn = false;
+  aSelCont->GetCaretEnabled(&caretOn);
+  if (!caretOn) {
+    caretOn = Preferences::GetBool("accessibility.browsewithcaret");
+    if (caretOn) {
+      nsCOMPtr<nsIDocShell> docShell = aWindow->GetDocShell();
+      if (docShell && docShell->ItemType() == nsIDocShellTreeItem::typeChrome) {
+        caretOn = false;
+      }
+    }
+  }
+  return caretOn;
+}
+
+static constexpr struct BrowseCommand {
+  Command reverse, forward;
+  KeyboardScrollAction::KeyboardScrollActionType scrollAction;
+  nsresult (NS_STDCALL nsISelectionController::*scroll)(bool);
+  nsresult (NS_STDCALL nsISelectionController::*move)(bool, bool);
+} browseCommands[] = {
+    {Command::ScrollTop, Command::ScrollBottom,
+     KeyboardScrollAction::eScrollComplete,
+     &nsISelectionController::CompleteScroll},
+    {Command::ScrollPageUp, Command::ScrollPageDown,
+     KeyboardScrollAction::eScrollPage, &nsISelectionController::ScrollPage},
+    {Command::ScrollLineUp, Command::ScrollLineDown,
+     KeyboardScrollAction::eScrollLine, &nsISelectionController::ScrollLine},
+    {Command::ScrollLeft, Command::ScrollRight,
+     KeyboardScrollAction::eScrollCharacter,
+     &nsISelectionController::ScrollCharacter},
+    {Command::MoveTop, Command::MoveBottom,
+     KeyboardScrollAction::eScrollComplete,
+     &nsISelectionController::CompleteScroll,
+     &nsISelectionController::CompleteMove},
+    {Command::MovePageUp, Command::MovePageDown,
+     KeyboardScrollAction::eScrollPage, &nsISelectionController::ScrollPage,
+     &nsISelectionController::PageMove},
+    {Command::LinePrevious, Command::LineNext,
+     KeyboardScrollAction::eScrollLine, &nsISelectionController::ScrollLine,
+     &nsISelectionController::LineMove},
+    {Command::WordPrevious, Command::WordNext,
+     KeyboardScrollAction::eScrollCharacter,
+     &nsISelectionController::ScrollCharacter,
+     &nsISelectionController::WordMove},
+    {Command::CharPrevious, Command::CharNext,
+     KeyboardScrollAction::eScrollCharacter,
+     &nsISelectionController::ScrollCharacter,
+     &nsISelectionController::CharacterMove},
+    {Command::BeginLine, Command::EndLine,
+     KeyboardScrollAction::eScrollComplete,
+     &nsISelectionController::CompleteScroll,
+     &nsISelectionController::IntraLineMove}};
+
+nsresult nsSelectMoveScrollCommand::DoCommand(const char* aCommandName,
+                                              nsISupports* aCommandContext) {
+  nsCOMPtr<nsPIDOMWindowOuter> piWindow(do_QueryInterface(aCommandContext));
+  nsCOMPtr<nsISelectionController> selCont;
+  GetSelectionControllerFromWindow(piWindow, getter_AddRefs(selCont));
+  NS_ENSURE_TRUE(selCont, NS_ERROR_NOT_INITIALIZED);
+
+  const bool caretOn = IsCaretOnInWindow(piWindow, selCont);
+  const Command command = GetInternalCommand(aCommandName);
+  for (const BrowseCommand& browseCommand : browseCommands) {
+    const bool forward = command == browseCommand.forward;
+    if (!forward && command != browseCommand.reverse) {
+      continue;
+    }
+    RefPtr<HTMLEditor> htmlEditor =
+        HTMLEditor::GetFrom(nsContentUtils::GetActiveEditor(piWindow));
+    if (htmlEditor) {
+      htmlEditor->PreHandleSelectionChangeCommand(command);
+    }
+    nsresult rv = NS_OK;
+    if (caretOn && browseCommand.move &&
+        NS_SUCCEEDED((selCont->*(browseCommand.move))(forward, false))) {
+      AdjustFocusAfterCaretMove(piWindow);
+    } else {
+      rv = (selCont->*(browseCommand.scroll))(forward);
+    }
+    if (htmlEditor) {
+      htmlEditor->PostHandleSelectionChangeCommand(command);
+    }
+    return rv;
+  }
+
+  MOZ_ASSERT(false, "Forgot to handle new command?");
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+// XXX It's not clear to me yet how we should handle the "scroll" option
+// for these commands; for now, I'm mapping them back to ScrollCharacter,
+// ScrollLine, etc., as if for horizontal-mode content, but this may need
+// to be reconsidered once we have more experience with vertical content.
+static const struct PhysicalBrowseCommand {
+  Command command;
+  int16_t direction, amount;
+  KeyboardScrollAction::KeyboardScrollActionType scrollAction;
+  nsresult (NS_STDCALL nsISelectionController::*scroll)(bool);
+} physicalBrowseCommands[] = {
+    {Command::MoveLeft, nsISelectionController::MOVE_LEFT, 0,
+     KeyboardScrollAction::eScrollCharacter,
+     &nsISelectionController::ScrollCharacter},
+    {Command::MoveRight, nsISelectionController::MOVE_RIGHT, 0,
+     KeyboardScrollAction::eScrollCharacter,
+     &nsISelectionController::ScrollCharacter},
+    {Command::MoveUp, nsISelectionController::MOVE_UP, 0,
+     KeyboardScrollAction::eScrollLine, &nsISelectionController::ScrollLine},
+    {Command::MoveDown, nsISelectionController::MOVE_DOWN, 0,
+     KeyboardScrollAction::eScrollLine, &nsISelectionController::ScrollLine},
+    {Command::MoveLeft2, nsISelectionController::MOVE_LEFT, 1,
+     KeyboardScrollAction::eScrollCharacter,
+     &nsISelectionController::ScrollCharacter},
+    {Command::MoveRight2, nsISelectionController::MOVE_RIGHT, 1,
+     KeyboardScrollAction::eScrollCharacter,
+     &nsISelectionController::ScrollCharacter},
+    {Command::MoveUp2, nsISelectionController::MOVE_UP, 1,
+     KeyboardScrollAction::eScrollComplete,
+     &nsISelectionController::CompleteScroll},
+    {Command::MoveDown2, nsISelectionController::MOVE_DOWN, 1,
+     KeyboardScrollAction::eScrollComplete,
+     &nsISelectionController::CompleteScroll},
+};
+
+nsresult nsPhysicalSelectMoveScrollCommand::DoCommand(
+    const char* aCommandName, nsISupports* aCommandContext) {
+  nsCOMPtr<nsPIDOMWindowOuter> piWindow(do_QueryInterface(aCommandContext));
+  nsCOMPtr<nsISelectionController> selCont;
+  GetSelectionControllerFromWindow(piWindow, getter_AddRefs(selCont));
+  NS_ENSURE_TRUE(selCont, NS_ERROR_NOT_INITIALIZED);
+
+  const bool caretOn = IsCaretOnInWindow(piWindow, selCont);
+  Command command = GetInternalCommand(aCommandName);
+  for (const PhysicalBrowseCommand& browseCommand : physicalBrowseCommands) {
+    if (command != browseCommand.command) {
+      continue;
+    }
+    RefPtr<HTMLEditor> htmlEditor =
+        HTMLEditor::GetFrom(nsContentUtils::GetActiveEditor(piWindow));
+    if (htmlEditor) {
+      htmlEditor->PreHandleSelectionChangeCommand(command);
+    }
+    nsresult rv = NS_OK;
+    if (caretOn && NS_SUCCEEDED(selCont->PhysicalMove(
+                       browseCommand.direction, browseCommand.amount, false))) {
+      AdjustFocusAfterCaretMove(piWindow);
+    } else {
+      const bool forward =
+          (browseCommand.direction == nsISelectionController::MOVE_RIGHT ||
+           browseCommand.direction == nsISelectionController::MOVE_DOWN);
+      rv = (selCont->*(browseCommand.scroll))(forward);
+    }
+    if (htmlEditor) {
+      htmlEditor->PostHandleSelectionChangeCommand(command);
+    }
+    return rv;
+  }
+
+  MOZ_ASSERT(false, "Forgot to handle new command?");
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+#if 0
+#  pragma mark -
+#endif
+
+static const struct SelectCommand {
+  Command reverse, forward;
+  nsresult (NS_STDCALL nsISelectionController::*select)(bool, bool);
+} selectCommands[] = {{Command::SelectCharPrevious, Command::SelectCharNext,
+                       &nsISelectionController::CharacterMove},
+                      {Command::SelectWordPrevious, Command::SelectWordNext,
+                       &nsISelectionController::WordMove},
+                      {Command::SelectBeginLine, Command::SelectEndLine,
+                       &nsISelectionController::IntraLineMove},
+                      {Command::SelectLinePrevious, Command::SelectLineNext,
+                       &nsISelectionController::LineMove},
+                      {Command::SelectPageUp, Command::SelectPageDown,
+                       &nsISelectionController::PageMove},
+                      {Command::SelectTop, Command::SelectBottom,
+                       &nsISelectionController::CompleteMove}};
+
+nsresult nsSelectCommand::DoCommand(const char* aCommandName,
+                                    nsISupports* aCommandContext) {
+  nsCOMPtr<nsPIDOMWindowOuter> piWindow(do_QueryInterface(aCommandContext));
+  nsCOMPtr<nsISelectionController> selCont;
+  GetSelectionControllerFromWindow(piWindow, getter_AddRefs(selCont));
+  NS_ENSURE_TRUE(selCont, NS_ERROR_NOT_INITIALIZED);
+
+  // These commands are so the browser can use caret navigation key bindings -
+  // Helps with accessibility - aaronl@netscape.com
+  const Command command = GetInternalCommand(aCommandName);
+  for (const SelectCommand& selectCommand : selectCommands) {
+    const bool forward = command == selectCommand.forward;
+    if (!forward && command != selectCommand.reverse) {
+      continue;
+    }
+    RefPtr<HTMLEditor> htmlEditor =
+        HTMLEditor::GetFrom(nsContentUtils::GetActiveEditor(piWindow));
+    if (htmlEditor) {
+      htmlEditor->PreHandleSelectionChangeCommand(command);
+    }
+    nsresult rv = (selCont->*(selectCommand.select))(forward, true);
+    if (htmlEditor) {
+      htmlEditor->PostHandleSelectionChangeCommand(command);
+    }
+    return rv;
+  }
+
+  MOZ_ASSERT(false, "Forgot to handle new command?");
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+#if 0
+#  pragma mark -
+#endif
+
+static const struct PhysicalSelectCommand {
+  Command command;
+  int16_t direction, amount;
+} physicalSelectCommands[] = {
+    {Command::SelectLeft, nsISelectionController::MOVE_LEFT, 0},
+    {Command::SelectRight, nsISelectionController::MOVE_RIGHT, 0},
+    {Command::SelectUp, nsISelectionController::MOVE_UP, 0},
+    {Command::SelectDown, nsISelectionController::MOVE_DOWN, 0},
+    {Command::SelectLeft2, nsISelectionController::MOVE_LEFT, 1},
+    {Command::SelectRight2, nsISelectionController::MOVE_RIGHT, 1},
+    {Command::SelectUp2, nsISelectionController::MOVE_UP, 1},
+    {Command::SelectDown2, nsISelectionController::MOVE_DOWN, 1}};
+
+nsresult nsPhysicalSelectCommand::DoCommand(const char* aCommandName,
+                                            nsISupports* aCommandContext) {
+  nsCOMPtr<nsPIDOMWindowOuter> piWindow(do_QueryInterface(aCommandContext));
+  nsCOMPtr<nsISelectionController> selCont;
+  GetSelectionControllerFromWindow(piWindow, getter_AddRefs(selCont));
+  NS_ENSURE_TRUE(selCont, NS_ERROR_NOT_INITIALIZED);
+
+  const Command command = GetInternalCommand(aCommandName);
+  for (const PhysicalSelectCommand& selectCommand : physicalSelectCommands) {
+    if (command != selectCommand.command) {
+      continue;
+    }
+    RefPtr<HTMLEditor> htmlEditor =
+        HTMLEditor::GetFrom(nsContentUtils::GetActiveEditor(piWindow));
+    if (htmlEditor) {
+      htmlEditor->PreHandleSelectionChangeCommand(command);
+    }
+    nsresult rv = selCont->PhysicalMove(selectCommand.direction,
+                                        selectCommand.amount, true);
+    if (htmlEditor) {
+      htmlEditor->PostHandleSelectionChangeCommand(command);
+    }
+    return rv;
+  }
+
+  MOZ_ASSERT(false, "Forgot to handle new command?");
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+#if 0
+#  pragma mark -
+#endif
+
+class nsClipboardCommand final : public nsIControllerCommand {
+  ~nsClipboardCommand() = default;
+
+ public:
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSICONTROLLERCOMMAND
+};
+
+NS_IMPL_ISUPPORTS(nsClipboardCommand, nsIControllerCommand)
+
+nsresult nsClipboardCommand::IsCommandEnabled(const char* aCommandName,
+                                              nsISupports* aContext,
+                                              bool* outCmdEnabled) {
+  NS_ENSURE_ARG_POINTER(outCmdEnabled);
+  *outCmdEnabled = false;
+
+  if (strcmp(aCommandName, "cmd_copy") && strcmp(aCommandName, "cmd_cut") &&
+      strcmp(aCommandName, "cmd_paste")) {
+    return NS_OK;
+  }
+
+  nsCOMPtr<nsPIDOMWindowOuter> window = do_QueryInterface(aContext);
+  NS_ENSURE_TRUE(window, NS_ERROR_FAILURE);
+  RefPtr<dom::Document> doc = window->GetExtantDoc();
+  NS_ENSURE_TRUE(doc, NS_ERROR_FAILURE);
+
+  if (doc->AreClipboardCommandsUnconditionallyEnabled()) {
+    // In HTML and XHTML documents, we always want the cut, copy and paste
+    // commands to be enabled, but if the document is chrome, let it control it.
+    *outCmdEnabled = true;
+  } else {
+    // Cut isn't enabled in xul documents which use nsClipboardCommand
+    if (strcmp(aCommandName, "cmd_copy") == 0) {
+      *outCmdEnabled = nsCopySupport::CanCopy(doc);
+    }
+  }
+  return NS_OK;
+}
+
+nsresult nsClipboardCommand::DoCommand(const char* aCommandName,
+                                       nsISupports* aContext) {
+  if (strcmp(aCommandName, "cmd_cut") && strcmp(aCommandName, "cmd_copy") &&
+      strcmp(aCommandName, "cmd_paste"))
+    return NS_OK;
+
+  nsCOMPtr<nsPIDOMWindowOuter> window = do_QueryInterface(aContext);
+  NS_ENSURE_TRUE(window, NS_ERROR_FAILURE);
+
+  nsIDocShell* docShell = window->GetDocShell();
+  NS_ENSURE_TRUE(docShell, NS_ERROR_FAILURE);
+
+  RefPtr<PresShell> presShell = docShell->GetPresShell();
+  NS_ENSURE_TRUE(presShell, NS_ERROR_FAILURE);
+
+  EventMessage eventMessage = eCopy;
+  if (strcmp(aCommandName, "cmd_cut") == 0) {
+    eventMessage = eCut;
+  } else if (strcmp(aCommandName, "cmd_paste") == 0) {
+    eventMessage = ePaste;
+  }
+
+  bool actionTaken = false;
+  nsCopySupport::FireClipboardEvent(eventMessage,
+                                    nsIClipboard::kGlobalClipboard, presShell,
+                                    nullptr, &actionTaken);
+
+  return actionTaken ? NS_OK : NS_SUCCESS_DOM_NO_OPERATION;
+}
+
+NS_IMETHODIMP
+nsClipboardCommand::GetCommandStateParams(const char* aCommandName,
+                                          nsICommandParams* aParams,
+                                          nsISupports* aCommandContext) {
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+nsresult nsClipboardCommand::DoCommandParams(const char* aCommandName,
+                                             nsICommandParams* aParams,
+                                             nsISupports* aContext) {
+  return DoCommand(aCommandName, aContext);
+}
+
+#if 0
+#  pragma mark -
+#endif
+
+class nsSelectionCommand : public nsIControllerCommand {
+ public:
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSICONTROLLERCOMMAND
+
+ protected:
+  virtual ~nsSelectionCommand() = default;
+
+  virtual nsresult IsClipboardCommandEnabled(const char* aCommandName,
+                                             nsIContentViewerEdit* aEdit,
+                                             bool* outCmdEnabled) = 0;
+  virtual nsresult DoClipboardCommand(const char* aCommandName,
+                                      nsIContentViewerEdit* aEdit,
+                                      nsICommandParams* aParams) = 0;
+
+  static nsresult GetContentViewerEditFromContext(
+      nsISupports* aContext, nsIContentViewerEdit** aEditInterface);
+
+  // no member variables, please, we're stateless!
+};
+
+NS_IMPL_ISUPPORTS(nsSelectionCommand, nsIControllerCommand)
+
+/*---------------------------------------------------------------------------
+
+  nsSelectionCommand
+
+----------------------------------------------------------------------------*/
+
+NS_IMETHODIMP
+nsSelectionCommand::IsCommandEnabled(const char* aCommandName,
+                                     nsISupports* aCommandContext,
+                                     bool* outCmdEnabled) {
+  NS_ENSURE_ARG_POINTER(outCmdEnabled);
+  *outCmdEnabled = false;
+
+  nsCOMPtr<nsIContentViewerEdit> contentEdit;
+  GetContentViewerEditFromContext(aCommandContext, getter_AddRefs(contentEdit));
+  NS_ENSURE_TRUE(contentEdit, NS_ERROR_NOT_INITIALIZED);
+
+  return IsClipboardCommandEnabled(aCommandName, contentEdit, outCmdEnabled);
+}
+
+NS_IMETHODIMP
+nsSelectionCommand::DoCommand(const char* aCommandName,
+                              nsISupports* aCommandContext) {
+  nsCOMPtr<nsIContentViewerEdit> contentEdit;
+  GetContentViewerEditFromContext(aCommandContext, getter_AddRefs(contentEdit));
+  NS_ENSURE_TRUE(contentEdit, NS_ERROR_NOT_INITIALIZED);
+
+  return DoClipboardCommand(aCommandName, contentEdit, nullptr);
+}
+
+NS_IMETHODIMP
+nsSelectionCommand::GetCommandStateParams(const char* aCommandName,
+                                          nsICommandParams* aParams,
+                                          nsISupports* aCommandContext) {
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP
+nsSelectionCommand::DoCommandParams(const char* aCommandName,
+                                    nsICommandParams* aParams,
+                                    nsISupports* aCommandContext) {
+  nsCOMPtr<nsIContentViewerEdit> contentEdit;
+  GetContentViewerEditFromContext(aCommandContext, getter_AddRefs(contentEdit));
+  NS_ENSURE_TRUE(contentEdit, NS_ERROR_NOT_INITIALIZED);
+
+  return DoClipboardCommand(aCommandName, contentEdit, aParams);
+}
+
+nsresult nsSelectionCommand::GetContentViewerEditFromContext(
+    nsISupports* aContext, nsIContentViewerEdit** aEditInterface) {
+  NS_ENSURE_ARG(aEditInterface);
+  *aEditInterface = nullptr;
+
+  nsCOMPtr<nsPIDOMWindowOuter> window = do_QueryInterface(aContext);
+  NS_ENSURE_TRUE(window, NS_ERROR_INVALID_ARG);
+
+  nsIDocShell* docShell = window->GetDocShell();
+  NS_ENSURE_TRUE(docShell, NS_ERROR_FAILURE);
+
+  nsCOMPtr<nsIContentViewer> viewer;
+  docShell->GetContentViewer(getter_AddRefs(viewer));
+  nsCOMPtr<nsIContentViewerEdit> edit(do_QueryInterface(viewer));
+  NS_ENSURE_TRUE(edit, NS_ERROR_FAILURE);
+
+  edit.forget(aEditInterface);
+  return NS_OK;
+}
+
+#if 0
+#  pragma mark -
+#endif
+
+#define NS_DECL_CLIPBOARD_COMMAND(_cmd)                                       \
+  class _cmd : public nsSelectionCommand {                                    \
+   protected:                                                                 \
+    virtual nsresult IsClipboardCommandEnabled(const char* aCommandName,      \
+                                               nsIContentViewerEdit* aEdit,   \
+                                               bool* outCmdEnabled) override; \
+    virtual nsresult DoClipboardCommand(const char* aCommandName,             \
+                                        nsIContentViewerEdit* aEdit,          \
+                                        nsICommandParams* aParams) override;  \
+    /* no member variables, please, we're stateless! */                       \
+  };
+
+NS_DECL_CLIPBOARD_COMMAND(nsClipboardCopyLinkCommand)
+NS_DECL_CLIPBOARD_COMMAND(nsClipboardImageCommands)
+NS_DECL_CLIPBOARD_COMMAND(nsClipboardSelectAllNoneCommands)
+
+nsresult nsClipboardCopyLinkCommand::IsClipboardCommandEnabled(
+    const char* aCommandName, nsIContentViewerEdit* aEdit,
+    bool* outCmdEnabled) {
+  return aEdit->GetInLink(outCmdEnabled);
+}
+
+nsresult nsClipboardCopyLinkCommand::DoClipboardCommand(
+    const char* aCommandName, nsIContentViewerEdit* aEdit,
+    nsICommandParams* aParams) {
+  return aEdit->CopyLinkLocation();
+}
+
+#if 0
+#  pragma mark -
+#endif
+
+nsresult nsClipboardImageCommands::IsClipboardCommandEnabled(
+    const char* aCommandName, nsIContentViewerEdit* aEdit,
+    bool* outCmdEnabled) {
+  return aEdit->GetInImage(outCmdEnabled);
+}
+
+nsresult nsClipboardImageCommands::DoClipboardCommand(
+    const char* aCommandName, nsIContentViewerEdit* aEdit,
+    nsICommandParams* aParams) {
+  if (!nsCRT::strcmp(sCopyImageLocationString, aCommandName))
+    return aEdit->CopyImage(nsIContentViewerEdit::COPY_IMAGE_TEXT);
+  if (!nsCRT::strcmp(sCopyImageContentsString, aCommandName))
+    return aEdit->CopyImage(nsIContentViewerEdit::COPY_IMAGE_DATA);
+  int32_t copyFlags = nsIContentViewerEdit::COPY_IMAGE_DATA |
+                      nsIContentViewerEdit::COPY_IMAGE_HTML;
+  if (aParams) {
+    copyFlags = aParams->AsCommandParams()->GetInt("imageCopy");
+  }
+  return aEdit->CopyImage(copyFlags);
+}
+
+#if 0
+#  pragma mark -
+#endif
+
+nsresult nsClipboardSelectAllNoneCommands::IsClipboardCommandEnabled(
+    const char* aCommandName, nsIContentViewerEdit* aEdit,
+    bool* outCmdEnabled) {
+  *outCmdEnabled = true;
+  return NS_OK;
+}
+
+nsresult nsClipboardSelectAllNoneCommands::DoClipboardCommand(
+    const char* aCommandName, nsIContentViewerEdit* aEdit,
+    nsICommandParams* aParams) {
+  if (!nsCRT::strcmp(sSelectAllString, aCommandName)) return aEdit->SelectAll();
+
+  return aEdit->ClearSelection();
+}
+
+#if 0
+#  pragma mark -
+#endif
+
+#if 0  // Remove unless needed again, bug 204777
+class nsWebNavigationBaseCommand : public nsIControllerCommand
+{
+public:
+  virtual ~nsWebNavigationBaseCommand() {}
+
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSICONTROLLERCOMMAND
+
+protected:
+
+  virtual nsresult    IsWebNavCommandEnabled(const char * aCommandName, nsIWebNavigation* aWebNavigation, bool *outCmdEnabled) = 0;
+  virtual nsresult    DoWebNavCommand(const char *aCommandName, nsIWebNavigation* aWebNavigation) = 0;
+
+  static nsresult     GetWebNavigationFromContext(nsISupports *aContext, nsIWebNavigation **aWebNavigation);
+
+  // no member variables, please, we're stateless!
+};
+
+class nsGoForwardCommand : public nsWebNavigationBaseCommand
+{
+protected:
+
+  virtual nsresult    IsWebNavCommandEnabled(const char * aCommandName, nsIWebNavigation* aWebNavigation, bool *outCmdEnabled);
+  virtual nsresult    DoWebNavCommand(const char *aCommandName, nsIWebNavigation* aWebNavigation);
+  // no member variables, please, we're stateless!
+};
+
+class nsGoBackCommand : public nsWebNavigationBaseCommand
+{
+protected:
+
+  virtual nsresult    IsWebNavCommandEnabled(const char * aCommandName, nsIWebNavigation* aWebNavigation, bool *outCmdEnabled);
+  virtual nsresult    DoWebNavCommand(const char *aCommandName, nsIWebNavigation* aWebNavigation);
+  // no member variables, please, we're stateless!
+};
+
+/*---------------------------------------------------------------------------
+
+  nsWebNavigationCommands
+     no params
+----------------------------------------------------------------------------*/
+
+NS_IMPL_ISUPPORTS(nsWebNavigationBaseCommand, nsIControllerCommand)
+
+NS_IMETHODIMP
+nsWebNavigationBaseCommand::IsCommandEnabled(const char * aCommandName,
+                                          nsISupports *aCommandContext,
+                                          bool *outCmdEnabled)
+{
+  NS_ENSURE_ARG_POINTER(outCmdEnabled);
+  *outCmdEnabled = false;
+
+  nsCOMPtr<nsIWebNavigation> webNav;
+  GetWebNavigationFromContext(aCommandContext, getter_AddRefs(webNav));
+  NS_ENSURE_TRUE(webNav, NS_ERROR_INVALID_ARG);
+
+  return IsCommandEnabled(aCommandName, webNav, outCmdEnabled);
+}
+
+NS_IMETHODIMP
+nsWebNavigationBaseCommand::GetCommandStateParams(const char *aCommandName,
+                                            nsICommandParams *aParams, nsISupports *aCommandContext)
+{
+  // XXX we should probably return the enabled state
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP
+nsWebNavigationBaseCommand::DoCommand(const char *aCommandName,
+                                   nsISupports *aCommandContext)
+{
+  nsCOMPtr<nsIWebNavigation> webNav;
+  GetWebNavigationFromContext(aCommandContext, getter_AddRefs(webNav));
+  NS_ENSURE_TRUE(webNav, NS_ERROR_INVALID_ARG);
+
+  return DoWebNavCommand(aCommandName, webNav);
+}
+
+NS_IMETHODIMP
+nsWebNavigationBaseCommand::DoCommandParams(const char *aCommandName,
+                                       nsICommandParams *aParams, nsISupports *aCommandContext)
+{
+  return DoCommand(aCommandName, aCommandContext);
+}
+
+nsresult
+nsWebNavigationBaseCommand::GetWebNavigationFromContext(nsISupports *aContext, nsIWebNavigation **aWebNavigation)
+{
+  nsCOMPtr<nsIInterfaceRequestor> windowReq = do_QueryInterface(aContext);
+  CallGetInterface(windowReq.get(), aWebNavigation);
+  return (*aWebNavigation) ? NS_OK : NS_ERROR_FAILURE;
+}
+
+nsresult
+nsGoForwardCommand::IsWebNavCommandEnabled(const char * aCommandName, nsIWebNavigation* aWebNavigation, bool *outCmdEnabled)
+{
+  return aWebNavigation->GetCanGoForward(outCmdEnabled);
+}
+
+nsresult
+nsGoForwardCommand::DoWebNavCommand(const char *aCommandName, nsIWebNavigation* aWebNavigation)
+{
+  return aWebNavigation->GoForward();
+}
+
+nsresult
+nsGoBackCommand::IsWebNavCommandEnabled(const char * aCommandName, nsIWebNavigation* aWebNavigation, bool *outCmdEnabled)
+{
+  return aWebNavigation->GetCanGoBack(outCmdEnabled);
+}
+
+nsresult
+nsGoBackCommand::DoWebNavCommand(const char *aCommandName, nsIWebNavigation* aWebNavigation)
+{
+  return aWebNavigation->GoBack();
+}
+#endif
+
+class nsLookUpDictionaryCommand final : public nsIControllerCommand {
+ public:
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSICONTROLLERCOMMAND
+
+ private:
+  virtual ~nsLookUpDictionaryCommand() = default;
+};
+
+NS_IMPL_ISUPPORTS(nsLookUpDictionaryCommand, nsIControllerCommand)
+
+NS_IMETHODIMP
+nsLookUpDictionaryCommand::IsCommandEnabled(const char* aCommandName,
+                                            nsISupports* aCommandContext,
+                                            bool* aRetval) {
+  *aRetval = true;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsLookUpDictionaryCommand::GetCommandStateParams(const char* aCommandName,
+                                                 nsICommandParams* aParams,
+                                                 nsISupports* aCommandContext) {
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP
+nsLookUpDictionaryCommand::DoCommand(const char* aCommandName,
+                                     nsISupports* aCommandContext) {
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP
+nsLookUpDictionaryCommand::DoCommandParams(const char* aCommandName,
+                                           nsICommandParams* aParams,
+                                           nsISupports* aCommandContext) {
+  if (NS_WARN_IF(!nsContentUtils::IsSafeToRunScript())) {
+    return NS_ERROR_NOT_AVAILABLE;
+  }
+
+  nsCommandParams* params = aParams->AsCommandParams();
+
+  ErrorResult error;
+  int32_t x = params->GetInt("x", error);
+  if (NS_WARN_IF(error.Failed())) {
+    return error.StealNSResult();
+  }
+  int32_t y = params->GetInt("y", error);
+  if (NS_WARN_IF(error.Failed())) {
+    return error.StealNSResult();
+  }
+
+  LayoutDeviceIntPoint point(x, y);
+
+  nsCOMPtr<nsPIDOMWindowOuter> window = do_QueryInterface(aCommandContext);
+  if (NS_WARN_IF(!window)) {
+    return NS_ERROR_FAILURE;
+  }
+
+  nsIDocShell* docShell = window->GetDocShell();
+  if (NS_WARN_IF(!docShell)) {
+    return NS_ERROR_FAILURE;
+  }
+
+  PresShell* presShell = docShell->GetPresShell();
+  if (NS_WARN_IF(!presShell)) {
+    return NS_ERROR_FAILURE;
+  }
+
+  nsPresContext* presContext = presShell->GetPresContext();
+  if (NS_WARN_IF(!presContext)) {
+    return NS_ERROR_FAILURE;
+  }
+
+  nsCOMPtr<nsIWidget> widget = presContext->GetRootWidget();
+  if (NS_WARN_IF(!widget)) {
+    return NS_ERROR_FAILURE;
+  }
+
+  WidgetQueryContentEvent queryCharAtPointEvent(true, eQueryCharacterAtPoint,
+                                                widget);
+  queryCharAtPointEvent.mRefPoint.x = x;
+  queryCharAtPointEvent.mRefPoint.y = y;
+  ContentEventHandler handler(presContext);
+  handler.OnQueryCharacterAtPoint(&queryCharAtPointEvent);
+
+  if (NS_WARN_IF(queryCharAtPointEvent.Failed()) ||
+      queryCharAtPointEvent.DidNotFindChar()) {
+    return NS_ERROR_FAILURE;
+  }
+
+  WidgetQueryContentEvent querySelectedTextEvent(true, eQuerySelectedText,
+                                                 widget);
+  handler.OnQuerySelectedText(&querySelectedTextEvent);
+  if (NS_WARN_IF(querySelectedTextEvent.DidNotFindSelection())) {
+    return NS_ERROR_FAILURE;
+  }
+
+  uint32_t offset = queryCharAtPointEvent.mReply->StartOffset();
+  uint32_t begin, length;
+
+  // macOS prioritizes user selected text if the current point falls within the
+  // selection range. So we check the selection first.
+  if (querySelectedTextEvent.FoundSelection() &&
+      querySelectedTextEvent.mReply->IsOffsetInRange(offset)) {
+    begin = querySelectedTextEvent.mReply->StartOffset();
+    length = querySelectedTextEvent.mReply->DataLength();
+  } else {
+    WidgetQueryContentEvent queryTextContentEvent(true, eQueryTextContent,
+                                                  widget);
+    // OSX 10.7 queries 50 characters before/after current point.  So we fetch
+    // same length.
+    if (offset > 50) {
+      offset -= 50;
+    } else {
+      offset = 0;
+    }
+    queryTextContentEvent.InitForQueryTextContent(offset, 100);
+    handler.OnQueryTextContent(&queryTextContentEvent);
+    if (NS_WARN_IF(queryTextContentEvent.Failed()) ||
+        NS_WARN_IF(queryTextContentEvent.mReply->IsDataEmpty())) {
+      return NS_ERROR_FAILURE;
+    }
+
+    intl::WordRange range = intl::WordBreaker::FindWord(
+        queryTextContentEvent.mReply->DataRef().get(),
+        queryTextContentEvent.mReply->DataLength(),
+        queryCharAtPointEvent.mReply->StartOffset() - offset);
+    if (range.mEnd == range.mBegin) {
+      return NS_ERROR_FAILURE;
+    }
+    begin = range.mBegin + offset;
+    length = range.mEnd - range.mBegin;
+  }
+
+  WidgetQueryContentEvent queryLookUpContentEvent(true, eQueryTextContent,
+                                                  widget);
+  queryLookUpContentEvent.InitForQueryTextContent(begin, length);
+  queryLookUpContentEvent.RequestFontRanges();
+  handler.OnQueryTextContent(&queryLookUpContentEvent);
+  if (NS_WARN_IF(queryLookUpContentEvent.Failed()) ||
+      NS_WARN_IF(queryLookUpContentEvent.mReply->IsDataEmpty())) {
+    return NS_ERROR_FAILURE;
+  }
+
+  WidgetQueryContentEvent queryTextRectEvent(true, eQueryTextRect, widget);
+  queryTextRectEvent.InitForQueryTextRect(begin, length);
+  handler.OnQueryTextRect(&queryTextRectEvent);
+  if (NS_WARN_IF(queryTextRectEvent.Failed())) {
+    return NS_ERROR_FAILURE;
+  }
+
+  widget->LookUpDictionary(queryLookUpContentEvent.mReply->DataRef(),
+                           queryLookUpContentEvent.mReply->mFontRanges,
+                           queryTextRectEvent.mReply->mWritingMode.IsVertical(),
+                           queryTextRectEvent.mReply->mRect.TopLeft());
+
+  return NS_OK;
+}
+
+/*---------------------------------------------------------------------------
+
+  RegisterWindowCommands
+
+----------------------------------------------------------------------------*/
+
+#define NS_REGISTER_ONE_COMMAND(_cmdClass, _cmdName)           \
+  {                                                            \
+    _cmdClass* theCmd = new _cmdClass();                       \
+    rv = aCommandTable->RegisterCommand(                       \
+        _cmdName, static_cast<nsIControllerCommand*>(theCmd)); \
+  }
+
+#define NS_REGISTER_FIRST_COMMAND(_cmdClass, _cmdName) \
+  {                                                    \
+    _cmdClass* theCmd = new _cmdClass();               \
+    rv = aCommandTable->RegisterCommand(               \
+        _cmdName, static_cast<nsIControllerCommand*>(theCmd));
+
+#define NS_REGISTER_NEXT_COMMAND(_cmdClass, _cmdName) \
+  rv = aCommandTable->RegisterCommand(                \
+      _cmdName, static_cast<nsIControllerCommand*>(theCmd));
+
+#define NS_REGISTER_LAST_COMMAND(_cmdClass, _cmdName)        \
+  rv = aCommandTable->RegisterCommand(                       \
+      _cmdName, static_cast<nsIControllerCommand*>(theCmd)); \
+  }
+
+// static
+nsresult nsWindowCommandRegistration::RegisterWindowCommands(
+    nsControllerCommandTable* aCommandTable) {
+  nsresult rv;
+
+  // XXX rework the macros to use a loop is possible, reducing code size
+
+  // this set of commands is affected by the 'browse with caret' setting
+  NS_REGISTER_FIRST_COMMAND(nsSelectMoveScrollCommand, sScrollTopString);
+  NS_REGISTER_NEXT_COMMAND(nsSelectMoveScrollCommand, sScrollBottomString);
+  NS_REGISTER_NEXT_COMMAND(nsSelectMoveScrollCommand, sScrollPageUpString);
+  NS_REGISTER_NEXT_COMMAND(nsSelectMoveScrollCommand, sScrollPageDownString);
+  NS_REGISTER_NEXT_COMMAND(nsSelectMoveScrollCommand, sScrollLineUpString);
+  NS_REGISTER_NEXT_COMMAND(nsSelectMoveScrollCommand, sScrollLineDownString);
+  NS_REGISTER_NEXT_COMMAND(nsSelectMoveScrollCommand, sScrollLeftString);
+  NS_REGISTER_NEXT_COMMAND(nsSelectMoveScrollCommand, sScrollRightString);
+  NS_REGISTER_NEXT_COMMAND(nsSelectMoveScrollCommand, sMoveTopString);
+  NS_REGISTER_NEXT_COMMAND(nsSelectMoveScrollCommand, sMoveBottomString);
+  NS_REGISTER_NEXT_COMMAND(nsSelectMoveScrollCommand, sWordPreviousString);
+  NS_REGISTER_NEXT_COMMAND(nsSelectMoveScrollCommand, sWordNextString);
+  NS_REGISTER_NEXT_COMMAND(nsSelectMoveScrollCommand, sBeginLineString);
+  NS_REGISTER_NEXT_COMMAND(nsSelectMoveScrollCommand, sEndLineString);
+  NS_REGISTER_NEXT_COMMAND(nsSelectMoveScrollCommand, sMovePageUpString);
+  NS_REGISTER_NEXT_COMMAND(nsSelectMoveScrollCommand, sMovePageDownString);
+  NS_REGISTER_NEXT_COMMAND(nsSelectMoveScrollCommand, sLinePreviousString);
+  NS_REGISTER_NEXT_COMMAND(nsSelectMoveScrollCommand, sLineNextString);
+  NS_REGISTER_NEXT_COMMAND(nsSelectMoveScrollCommand, sCharPreviousString);
+  NS_REGISTER_LAST_COMMAND(nsSelectMoveScrollCommand, sCharNextString);
+
+  NS_REGISTER_FIRST_COMMAND(nsPhysicalSelectMoveScrollCommand, sMoveLeftString);
+  NS_REGISTER_NEXT_COMMAND(nsPhysicalSelectMoveScrollCommand, sMoveRightString);
+  NS_REGISTER_NEXT_COMMAND(nsPhysicalSelectMoveScrollCommand, sMoveUpString);
+  NS_REGISTER_NEXT_COMMAND(nsPhysicalSelectMoveScrollCommand, sMoveDownString);
+  NS_REGISTER_NEXT_COMMAND(nsPhysicalSelectMoveScrollCommand, sMoveLeft2String);
+  NS_REGISTER_NEXT_COMMAND(nsPhysicalSelectMoveScrollCommand,
+                           sMoveRight2String);
+  NS_REGISTER_NEXT_COMMAND(nsPhysicalSelectMoveScrollCommand, sMoveUp2String);
+  NS_REGISTER_LAST_COMMAND(nsPhysicalSelectMoveScrollCommand, sMoveDown2String);
+
+  NS_REGISTER_FIRST_COMMAND(nsSelectCommand, sSelectCharPreviousString);
+  NS_REGISTER_NEXT_COMMAND(nsSelectCommand, sSelectCharNextString);
+  NS_REGISTER_NEXT_COMMAND(nsSelectCommand, sSelectWordPreviousString);
+  NS_REGISTER_NEXT_COMMAND(nsSelectCommand, sSelectWordNextString);
+  NS_REGISTER_NEXT_COMMAND(nsSelectCommand, sSelectBeginLineString);
+  NS_REGISTER_NEXT_COMMAND(nsSelectCommand, sSelectEndLineString);
+  NS_REGISTER_NEXT_COMMAND(nsSelectCommand, sSelectLinePreviousString);
+  NS_REGISTER_NEXT_COMMAND(nsSelectCommand, sSelectLineNextString);
+  NS_REGISTER_NEXT_COMMAND(nsSelectCommand, sSelectPageUpString);
+  NS_REGISTER_NEXT_COMMAND(nsSelectCommand, sSelectPageDownString);
+  NS_REGISTER_NEXT_COMMAND(nsSelectCommand, sSelectTopString);
+  NS_REGISTER_LAST_COMMAND(nsSelectCommand, sSelectBottomString);
+
+  NS_REGISTER_FIRST_COMMAND(nsPhysicalSelectCommand, sSelectLeftString);
+  NS_REGISTER_NEXT_COMMAND(nsPhysicalSelectCommand, sSelectRightString);
+  NS_REGISTER_NEXT_COMMAND(nsPhysicalSelectCommand, sSelectUpString);
+  NS_REGISTER_NEXT_COMMAND(nsPhysicalSelectCommand, sSelectDownString);
+  NS_REGISTER_NEXT_COMMAND(nsPhysicalSelectCommand, sSelectLeft2String);
+  NS_REGISTER_NEXT_COMMAND(nsPhysicalSelectCommand, sSelectRight2String);
+  NS_REGISTER_NEXT_COMMAND(nsPhysicalSelectCommand, sSelectUp2String);
+  NS_REGISTER_LAST_COMMAND(nsPhysicalSelectCommand, sSelectDown2String);
+
+  NS_REGISTER_ONE_COMMAND(nsClipboardCommand, "cmd_cut");
+  NS_REGISTER_ONE_COMMAND(nsClipboardCommand, "cmd_copy");
+  NS_REGISTER_ONE_COMMAND(nsClipboardCommand, "cmd_paste");
+  NS_REGISTER_ONE_COMMAND(nsClipboardCopyLinkCommand, "cmd_copyLink");
+  NS_REGISTER_FIRST_COMMAND(nsClipboardImageCommands, sCopyImageLocationString);
+  NS_REGISTER_NEXT_COMMAND(nsClipboardImageCommands, sCopyImageContentsString);
+  NS_REGISTER_LAST_COMMAND(nsClipboardImageCommands, sCopyImageString);
+  NS_REGISTER_FIRST_COMMAND(nsClipboardSelectAllNoneCommands, sSelectAllString);
+  NS_REGISTER_LAST_COMMAND(nsClipboardSelectAllNoneCommands, sSelectNoneString);
+
+#if 0  // Remove unless needed again, bug 204777
+  NS_REGISTER_ONE_COMMAND(nsGoBackCommand, "cmd_browserBack");
+  NS_REGISTER_ONE_COMMAND(nsGoForwardCommand, "cmd_browserForward");
+#endif
+
+  NS_REGISTER_ONE_COMMAND(nsLookUpDictionaryCommand, "cmd_lookUpDictionary");
+
+  return rv;
+}
+
+/* static */
+bool nsGlobalWindowCommands::FindScrollCommand(
+    const char* aCommandName, KeyboardScrollAction* aOutAction) {
+  // Search for a keyboard scroll action to do for this command in
+  // browseCommands and physicalBrowseCommands. Each command exists in only one
+  // of them, so the order we examine browseCommands and physicalBrowseCommands
+  // doesn't matter.
+
+  const Command command = GetInternalCommand(aCommandName);
+  if (command == Command::DoNothing) {
+    return false;
+  }
+  for (const BrowseCommand& browseCommand : browseCommands) {
+    const bool forward = command == browseCommand.forward;
+    const bool reverse = command == browseCommand.reverse;
+    if (forward || reverse) {
+      *aOutAction = KeyboardScrollAction(browseCommand.scrollAction, forward);
+      return true;
+    }
+  }
+
+  for (const PhysicalBrowseCommand& browseCommand : physicalBrowseCommands) {
+    if (command != browseCommand.command) {
+      continue;
+    }
+    const bool forward =
+        (browseCommand.direction == nsISelectionController::MOVE_RIGHT ||
+         browseCommand.direction == nsISelectionController::MOVE_DOWN);
+
+    *aOutAction = KeyboardScrollAction(browseCommand.scrollAction, forward);
+    return true;
+  }
+
+  return false;
+}