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gecko/dom/base/nsGlobalWindowCommands.cpp

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/* -*- 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 "nsIComponentManager.h"
#include "nsIDOMElement.h"
#include "nsIInterfaceRequestor.h"
#include "nsIInterfaceRequestorUtils.h"
#include "nsCRT.h"
#include "nsString.h"
#include "mozilla/ArrayUtils.h"
#include "mozilla/Preferences.h"
#include "nsIControllerCommandTable.h"
#include "nsICommandParams.h"
#include "nsPIDOMWindow.h"
#include "nsIPresShell.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 "mozilla/Attributes.h"
#include "mozilla/BasicEvents.h"
#include "mozilla/dom/Selection.h"
#include "nsIClipboardDragDropHooks.h"
#include "nsIClipboardDragDropHookList.h"
using namespace mozilla;
const char * const sSelectAllString = "cmd_selectAll";
const char * const sSelectNoneString = "cmd_selectNone";
const char * const sCopyImageLocationString = "cmd_copyImageLocation";
const char * const sCopyImageContentsString = "cmd_copyImageContents";
const char * const sCopyImageString = "cmd_copyImage";
const char * const sScrollTopString = "cmd_scrollTop";
const char * const sScrollBottomString = "cmd_scrollBottom";
const char * const sScrollPageUpString = "cmd_scrollPageUp";
const char * const sScrollPageDownString = "cmd_scrollPageDown";
const char * const sScrollLineUpString = "cmd_scrollLineUp";
const char * const sScrollLineDownString = "cmd_scrollLineDown";
const char * const sScrollLeftString = "cmd_scrollLeft";
const char * const sScrollRightString = "cmd_scrollRight";
const char * const sMoveTopString = "cmd_moveTop";
const char * const sMoveBottomString = "cmd_moveBottom";
const char * const sMovePageUpString = "cmd_movePageUp";
const char * const sMovePageDownString = "cmd_movePageDown";
const char * const sLinePreviousString = "cmd_linePrevious";
const char * const sLineNextString = "cmd_lineNext";
const char * const sCharPreviousString = "cmd_charPrevious";
const char * const sCharNextString = "cmd_charNext";
// These are so the browser can use editor navigation key bindings
// helps with accessibility (boolean pref accessibility.browsewithcaret)
const char * const sSelectCharPreviousString = "cmd_selectCharPrevious";
const char * const sSelectCharNextString = "cmd_selectCharNext";
const char * const sWordPreviousString = "cmd_wordPrevious";
const char * const sWordNextString = "cmd_wordNext";
const char * const sSelectWordPreviousString = "cmd_selectWordPrevious";
const char * const sSelectWordNextString = "cmd_selectWordNext";
const char * const sBeginLineString = "cmd_beginLine";
const char * const sEndLineString = "cmd_endLine";
const char * const sSelectBeginLineString = "cmd_selectBeginLine";
const char * const sSelectEndLineString = "cmd_selectEndLine";
const char * const sSelectLinePreviousString = "cmd_selectLinePrevious";
const char * const sSelectLineNextString = "cmd_selectLineNext";
const char * const sSelectPageUpString = "cmd_selectPageUp";
const char * const sSelectPageDownString = "cmd_selectPageDown";
const char * const sSelectTopString = "cmd_selectTop";
const char * const sSelectBottomString = "cmd_selectBottom";
// Physical-direction movement and selection commands
const char * const sMoveLeftString = "cmd_moveLeft";
const char * const sMoveRightString = "cmd_moveRight";
const char * const sMoveUpString = "cmd_moveUp";
const char * const sMoveDownString = "cmd_moveDown";
const char * const sMoveLeft2String = "cmd_moveLeft2";
const char * const sMoveRight2String = "cmd_moveRight2";
const char * const sMoveUp2String = "cmd_moveUp2";
const char * const sMoveDown2String = "cmd_moveDown2";
const char * const sSelectLeftString = "cmd_selectLeft";
const char * const sSelectRightString = "cmd_selectRight";
const char * const sSelectUpString = "cmd_selectUp";
const char * const sSelectDownString = "cmd_selectDown";
const char * const sSelectLeft2String = "cmd_selectLeft2";
const char * const sSelectRight2String = "cmd_selectRight2";
const char * const sSelectUp2String = "cmd_selectUp2";
const char * const 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;
NS_IMETHOD DoCommandParams(const char* aCommandName, nsICommandParams* aParams, nsISupports* aCommandContext) override;
protected:
virtual ~nsSelectionCommandsBase() {}
static nsresult GetPresShellFromWindow(nsPIDOMWindowOuter *aWindow, nsIPresShell **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);
// 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);
// 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);
// 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);
// 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, nsIPresShell **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)
{
*aSelCon = nullptr;
nsCOMPtr<nsIPresShell> presShell;
GetPresShellFromWindow(aWindow, getter_AddRefs(presShell));
if (presShell)
return CallQueryInterface(presShell, aSelCon);
return NS_ERROR_FAILURE;
}
#if 0
#pragma mark -
#endif
// Helpers for nsSelectMoveScrollCommand and nsPhysicalSelectMoveScrollCommand
static void
AdjustFocusAfterCaretMove(nsPIDOMWindowOuter* aWindow)
{
// adjust the focus to the new caret position
nsIFocusManager* fm = nsFocusManager::GetFocusManager();
if (fm) {
nsCOMPtr<nsIDOMElement> 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 const struct BrowseCommand {
const char *reverse, *forward;
nsresult (NS_STDCALL nsISelectionController::*scroll)(bool);
nsresult (NS_STDCALL nsISelectionController::*move)(bool, bool);
} browseCommands[] = {
{ sScrollTopString, sScrollBottomString,
&nsISelectionController::CompleteScroll },
{ sScrollPageUpString, sScrollPageDownString,
&nsISelectionController::ScrollPage },
{ sScrollLineUpString, sScrollLineDownString,
&nsISelectionController::ScrollLine },
{ sScrollLeftString, sScrollRightString,
&nsISelectionController::ScrollCharacter },
{ sMoveTopString, sMoveBottomString,
&nsISelectionController::CompleteScroll,
&nsISelectionController::CompleteMove },
{ sMovePageUpString, sMovePageDownString,
&nsISelectionController::ScrollPage,
&nsISelectionController::PageMove },
{ sLinePreviousString, sLineNextString,
&nsISelectionController::ScrollLine,
&nsISelectionController::LineMove },
{ sWordPreviousString, sWordNextString,
&nsISelectionController::ScrollCharacter,
&nsISelectionController::WordMove },
{ sCharPreviousString, sCharNextString,
&nsISelectionController::ScrollCharacter,
&nsISelectionController::CharacterMove },
{ sBeginLineString, sEndLineString,
&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);
bool caretOn = IsCaretOnInWindow(piWindow, selCont);
for (size_t i = 0; i < ArrayLength(browseCommands); i++) {
bool forward = !strcmp(aCommandName, browseCommands[i].forward);
if (forward || !strcmp(aCommandName, browseCommands[i].reverse)) {
if (caretOn && browseCommands[i].move &&
NS_SUCCEEDED((selCont->*(browseCommands[i].move))(forward, false))) {
AdjustFocusAfterCaretMove(piWindow);
return NS_OK;
}
return (selCont->*(browseCommands[i].scroll))(forward);
}
}
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 {
const char *command;
int16_t direction, amount;
nsresult (NS_STDCALL nsISelectionController::*scroll)(bool);
} physicalBrowseCommands[] = {
{ sMoveLeftString, nsISelectionController::MOVE_LEFT, 0,
&nsISelectionController::ScrollCharacter },
{ sMoveRightString, nsISelectionController::MOVE_RIGHT, 0,
&nsISelectionController::ScrollCharacter },
{ sMoveUpString, nsISelectionController::MOVE_UP, 0,
&nsISelectionController::ScrollLine },
{ sMoveDownString, nsISelectionController::MOVE_DOWN, 0,
&nsISelectionController::ScrollLine },
{ sMoveLeft2String, nsISelectionController::MOVE_LEFT, 1,
&nsISelectionController::ScrollCharacter },
{ sMoveRight2String, nsISelectionController::MOVE_RIGHT, 1,
&nsISelectionController::ScrollCharacter },
{ sMoveUp2String, nsISelectionController::MOVE_UP, 1,
&nsISelectionController::CompleteScroll },
{ sMoveDown2String, nsISelectionController::MOVE_DOWN, 1,
&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);
bool caretOn = IsCaretOnInWindow(piWindow, selCont);
for (size_t i = 0; i < ArrayLength(physicalBrowseCommands); i++) {
const PhysicalBrowseCommand& cmd = physicalBrowseCommands[i];
if (!strcmp(aCommandName, cmd.command)) {
int16_t dir = cmd.direction;
if (caretOn &&
NS_SUCCEEDED(selCont->PhysicalMove(dir, cmd.amount, false))) {
AdjustFocusAfterCaretMove(piWindow);
return NS_OK;
}
bool forward = (dir == nsISelectionController::MOVE_RIGHT ||
dir == nsISelectionController::MOVE_DOWN);
return (selCont->*(cmd.scroll))(forward);
}
}
return NS_ERROR_NOT_IMPLEMENTED;
}
#if 0
#pragma mark -
#endif
static const struct SelectCommand {
const char *reverse, *forward;
nsresult (NS_STDCALL nsISelectionController::*select)(bool, bool);
} selectCommands[] = {
{ sSelectCharPreviousString, sSelectCharNextString,
&nsISelectionController::CharacterMove },
{ sSelectWordPreviousString, sSelectWordNextString,
&nsISelectionController::WordMove },
{ sSelectBeginLineString, sSelectEndLineString,
&nsISelectionController::IntraLineMove },
{ sSelectLinePreviousString, sSelectLineNextString,
&nsISelectionController::LineMove },
{ sSelectPageUpString, sSelectPageDownString,
&nsISelectionController::PageMove },
{ sSelectTopString, sSelectBottomString,
&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
for (size_t i = 0; i < ArrayLength(selectCommands); i++) {
bool forward = !strcmp(aCommandName, selectCommands[i].forward);
if (forward || !strcmp(aCommandName, selectCommands[i].reverse)) {
return (selCont->*(selectCommands[i].select))(forward, true);
}
}
return NS_ERROR_NOT_IMPLEMENTED;
}
#if 0
#pragma mark -
#endif
static const struct PhysicalSelectCommand {
const char *command;
int16_t direction, amount;
} physicalSelectCommands[] = {
{ sSelectLeftString, nsISelectionController::MOVE_LEFT, 0 },
{ sSelectRightString, nsISelectionController::MOVE_RIGHT, 0 },
{ sSelectUpString, nsISelectionController::MOVE_UP, 0 },
{ sSelectDownString, nsISelectionController::MOVE_DOWN, 0 },
{ sSelectLeft2String, nsISelectionController::MOVE_LEFT, 1 },
{ sSelectRight2String, nsISelectionController::MOVE_RIGHT, 1 },
{ sSelectUp2String, nsISelectionController::MOVE_UP, 1 },
{ sSelectDown2String, 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);
for (size_t i = 0; i < ArrayLength(physicalSelectCommands); i++) {
if (!strcmp(aCommandName, physicalSelectCommands[i].command)) {
return selCont->PhysicalMove(physicalSelectCommands[i].direction,
physicalSelectCommands[i].amount,
true);
}
}
return NS_ERROR_NOT_IMPLEMENTED;
}
#if 0
#pragma mark -
#endif
class nsClipboardCommand final : public nsIControllerCommand
{
~nsClipboardCommand() {}
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_copyAndCollapseToEnd") &&
strcmp(aCommandName, "cmd_cut"))
return NS_OK;
nsCOMPtr<nsPIDOMWindowOuter> window = do_QueryInterface(aContext);
NS_ENSURE_TRUE(window, NS_ERROR_FAILURE);
nsCOMPtr<nsIDocument> doc = window->GetExtantDoc();
if (doc->IsHTMLOrXHTML()) {
// In HTML and XHTML documents, we always want cut and copy commands to be enabled.
*outCmdEnabled = true;
} else {
// Cut isn't enabled in xul documents which use nsClipboardCommand
if (strcmp(aCommandName, "cmd_cut")) {
*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_copyAndCollapseToEnd"))
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);
nsCOMPtr<nsIPresShell> presShell = docShell->GetPresShell();
NS_ENSURE_TRUE(presShell, NS_ERROR_FAILURE);
EventMessage eventMessage = eCopy;
if (strcmp(aCommandName, "cmd_cut") == 0) {
eventMessage = eCut;
}
bool actionTaken = false;
nsCopySupport::FireClipboardEvent(eventMessage,
nsIClipboard::kGlobalClipboard,
presShell, nullptr, &actionTaken);
if (!strcmp(aCommandName, "cmd_copyAndCollapseToEnd")) {
dom::Selection *sel =
presShell->GetCurrentSelection(nsISelectionController::SELECTION_NORMAL);
NS_ENSURE_TRUE(sel, NS_ERROR_FAILURE);
sel->CollapseToEnd();
}
if (actionTaken) {
return NS_OK;
}
return NS_ERROR_FAILURE;
}
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() {}
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); \
virtual nsresult DoClipboardCommand(const char* aCommandName, \
nsIContentViewerEdit* aEdit, nsICommandParams* aParams); \
/* no member variables, please, we're stateless! */ \
};
NS_DECL_CLIPBOARD_COMMAND(nsClipboardCopyLinkCommand)
NS_DECL_CLIPBOARD_COMMAND(nsClipboardImageCommands)
NS_DECL_CLIPBOARD_COMMAND(nsClipboardSelectAllNoneCommands)
NS_DECL_CLIPBOARD_COMMAND(nsClipboardGetContentsCommand)
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)
aParams->GetLongValue("imageCopy", &copyFlags);
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
nsresult
nsClipboardGetContentsCommand::IsClipboardCommandEnabled(const char* aCommandName, nsIContentViewerEdit* aEdit, bool *outCmdEnabled)
{
return aEdit->GetCanGetContents(outCmdEnabled);
}
nsresult
nsClipboardGetContentsCommand::DoClipboardCommand(const char *aCommandName, nsIContentViewerEdit* aEdit, nsICommandParams* aParams)
{
NS_ENSURE_ARG(aParams);
nsAutoCString mimeType("text/plain");
nsXPIDLCString format; // nsICommandParams needs to use nsACString
if (NS_SUCCEEDED(aParams->GetCStringValue("format", getter_Copies(format))))
mimeType.Assign(format);
bool selectionOnly = false;
aParams->GetBooleanValue("selection_only", &selectionOnly);
nsAutoString contents;
nsresult rv = aEdit->GetContents(mimeType.get(), selectionOnly, contents);
if (NS_FAILED(rv))
return rv;
return aParams->SetStringValue("result", contents);
}
#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
/*---------------------------------------------------------------------------
nsClipboardDragDropHookCommand
params value type possible values
"addhook" isupports nsIClipboardDragDropHooks as nsISupports
"removehook" isupports nsIClipboardDragDropHooks as nsISupports
----------------------------------------------------------------------------*/
class nsClipboardDragDropHookCommand final : public nsIControllerCommand
{
~nsClipboardDragDropHookCommand() {}
public:
NS_DECL_ISUPPORTS
NS_DECL_NSICONTROLLERCOMMAND
protected:
// no member variables, please, we're stateless!
};
NS_IMPL_ISUPPORTS(nsClipboardDragDropHookCommand, nsIControllerCommand)
NS_IMETHODIMP
nsClipboardDragDropHookCommand::IsCommandEnabled(const char * aCommandName,
nsISupports *aCommandContext,
bool *outCmdEnabled)
{
*outCmdEnabled = true;
return NS_OK;
}
NS_IMETHODIMP
nsClipboardDragDropHookCommand::DoCommand(const char *aCommandName,
nsISupports *aCommandContext)
{
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsClipboardDragDropHookCommand::DoCommandParams(const char *aCommandName,
nsICommandParams *aParams,
nsISupports *aCommandContext)
{
NS_ENSURE_ARG(aParams);
nsCOMPtr<nsPIDOMWindowOuter> window = do_QueryInterface(aCommandContext);
NS_ENSURE_TRUE(window, NS_ERROR_FAILURE);
nsIDocShell *docShell = window->GetDocShell();
nsCOMPtr<nsIClipboardDragDropHookList> obj = do_GetInterface(docShell);
if (!obj) return NS_ERROR_INVALID_ARG;
nsCOMPtr<nsISupports> isuppHook;
nsresult returnValue = NS_OK;
nsresult rv = aParams->GetISupportsValue("addhook", getter_AddRefs(isuppHook));
if (NS_SUCCEEDED(rv))
{
nsCOMPtr<nsIClipboardDragDropHooks> hook = do_QueryInterface(isuppHook);
if (hook)
returnValue = obj->AddClipboardDragDropHooks(hook);
else
returnValue = NS_ERROR_INVALID_ARG;
}
rv = aParams->GetISupportsValue("removehook", getter_AddRefs(isuppHook));
if (NS_SUCCEEDED(rv))
{
nsCOMPtr<nsIClipboardDragDropHooks> hook = do_QueryInterface(isuppHook);
if (hook)
{
rv = obj->RemoveClipboardDragDropHooks(hook);
if (NS_FAILED(rv) && NS_SUCCEEDED(returnValue))
returnValue = rv;
}
else
returnValue = NS_ERROR_INVALID_ARG;
}
return returnValue;
}
NS_IMETHODIMP
nsClipboardDragDropHookCommand::GetCommandStateParams(const char *aCommandName,
nsICommandParams *aParams,
nsISupports *aCommandContext)
{
NS_ENSURE_ARG_POINTER(aParams);
return aParams->SetBooleanValue("state_enabled", true);
}
/*---------------------------------------------------------------------------
RegisterWindowCommands
----------------------------------------------------------------------------*/
#define NS_REGISTER_ONE_COMMAND(_cmdClass, _cmdName) \
{ \
_cmdClass* theCmd = new _cmdClass(); \
rv = inCommandTable->RegisterCommand(_cmdName, \
static_cast<nsIControllerCommand *>(theCmd)); \
}
#define NS_REGISTER_FIRST_COMMAND(_cmdClass, _cmdName) \
{ \
_cmdClass* theCmd = new _cmdClass(); \
rv = inCommandTable->RegisterCommand(_cmdName, \
static_cast<nsIControllerCommand *>(theCmd));
#define NS_REGISTER_NEXT_COMMAND(_cmdClass, _cmdName) \
rv = inCommandTable->RegisterCommand(_cmdName, \
static_cast<nsIControllerCommand *>(theCmd));
#define NS_REGISTER_LAST_COMMAND(_cmdClass, _cmdName) \
rv = inCommandTable->RegisterCommand(_cmdName, \
static_cast<nsIControllerCommand *>(theCmd)); \
}
// static
nsresult
nsWindowCommandRegistration::RegisterWindowCommands(
nsIControllerCommandTable *inCommandTable)
{
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_copyAndCollapseToEnd");
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);
NS_REGISTER_ONE_COMMAND(nsClipboardGetContentsCommand, "cmd_getContents");
#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(nsClipboardDragDropHookCommand, "cmd_clipboardDragDropHook");
return rv;
}
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