Source code
Revision control
Copy as Markdown
Other Tools
/* -*- 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
#include "XULMenuParentElement.h"
#include "nsCOMPtr.h"
#include "nsICSSDeclaration.h"
#include "nsIContent.h"
#include "nsNameSpaceManager.h"
#include "nsGkAtoms.h"
#include "nsMenuPopupFrame.h"
#include "nsStringFwd.h"
#include "nsView.h"
#include "mozilla/AppUnits.h"
#include "mozilla/AsyncEventDispatcher.h"
#include "mozilla/dom/DOMRect.h"
#include "mozilla/dom/Document.h"
#include "mozilla/dom/Element.h"
#include "mozilla/dom/Event.h"
#include "mozilla/dom/XULPopupElement.h"
#include "mozilla/dom/XULButtonElement.h"
#include "mozilla/dom/XULMenuElement.h"
#include "mozilla/dom/XULPopupElementBinding.h"
#ifdef MOZ_WAYLAND
# include "mozilla/WidgetUtilsGtk.h"
#endif
namespace mozilla::dom {
nsXULElement* NS_NewXULPopupElement(
already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo) {
RefPtr<mozilla::dom::NodeInfo> nodeInfo(aNodeInfo);
auto* nim = nodeInfo->NodeInfoManager();
return new (nim) XULPopupElement(nodeInfo.forget());
}
JSObject* XULPopupElement::WrapNode(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) {
return XULPopupElement_Binding::Wrap(aCx, this, aGivenProto);
}
nsMenuPopupFrame* XULPopupElement::GetFrame(FlushType aFlushType) {
nsIFrame* f = GetPrimaryFrame(aFlushType);
MOZ_ASSERT(!f || f->IsMenuPopupFrame());
return static_cast<nsMenuPopupFrame*>(f);
}
void XULPopupElement::OpenPopup(Element* aAnchorElement,
const StringOrOpenPopupOptions& aOptions,
int32_t aXPos, int32_t aYPos,
bool aIsContextMenu, bool aAttributesOverride,
Event* aTriggerEvent) {
nsAutoString position;
if (aOptions.IsOpenPopupOptions()) {
const OpenPopupOptions& options = aOptions.GetAsOpenPopupOptions();
position = options.mPosition;
aXPos = options.mX;
aYPos = options.mY;
aIsContextMenu = options.mIsContextMenu;
aAttributesOverride = options.mAttributesOverride;
aTriggerEvent = options.mTriggerEvent;
} else {
position = aOptions.GetAsString();
}
nsXULPopupManager* pm = nsXULPopupManager::GetInstance();
if (pm) {
// As a special case for popups that are menus when no anchor or position
// are specified, open the popup with ShowMenu instead of ShowPopup so that
// the popup is aligned with the menu.
if (!aAnchorElement && position.IsEmpty() && GetPrimaryFrame()) {
if (auto* menu = GetContainingMenu()) {
pm->ShowMenu(menu, false);
return;
}
}
pm->ShowPopup(this, aAnchorElement, position, aXPos, aYPos, aIsContextMenu,
aAttributesOverride, false, aTriggerEvent);
}
}
void XULPopupElement::OpenPopupAtScreen(int32_t aXPos, int32_t aYPos,
bool aIsContextMenu,
Event* aTriggerEvent) {
nsXULPopupManager* pm = nsXULPopupManager::GetInstance();
if (pm) {
pm->ShowPopupAtScreen(this, aXPos, aYPos, aIsContextMenu, aTriggerEvent);
}
}
void XULPopupElement::OpenPopupAtScreenRect(const nsAString& aPosition,
int32_t aXPos, int32_t aYPos,
int32_t aWidth, int32_t aHeight,
bool aIsContextMenu,
bool aAttributesOverride,
Event* aTriggerEvent) {
nsXULPopupManager* pm = nsXULPopupManager::GetInstance();
if (pm) {
pm->ShowPopupAtScreenRect(
this, aPosition, nsIntRect(aXPos, aYPos, aWidth, aHeight),
aIsContextMenu, aAttributesOverride, aTriggerEvent);
}
}
void XULPopupElement::HidePopup(bool aCancel) {
nsXULPopupManager* pm = nsXULPopupManager::GetInstance();
if (!pm) {
return;
}
HidePopupOptions options{HidePopupOption::DeselectMenu};
if (aCancel) {
options += HidePopupOption::IsRollup;
}
pm->HidePopup(this, options);
}
static Modifiers ConvertModifiers(const ActivateMenuItemOptions& aModifiers) {
Modifiers modifiers = 0;
if (aModifiers.mCtrlKey) {
modifiers |= MODIFIER_CONTROL;
}
if (aModifiers.mAltKey) {
modifiers |= MODIFIER_ALT;
}
if (aModifiers.mShiftKey) {
modifiers |= MODIFIER_SHIFT;
}
if (aModifiers.mMetaKey) {
modifiers |= MODIFIER_META;
}
return modifiers;
}
void XULPopupElement::PopupOpened(bool aSelectFirstItem) {
if (aSelectFirstItem) {
SelectFirstItem();
}
if (RefPtr button = GetContainingMenu()) {
if (RefPtr parent = button->GetMenuParent()) {
parent->SetActiveMenuChild(button);
}
}
}
void XULPopupElement::PopupClosed(bool aDeselectMenu) {
LockMenuUntilClosed(false);
SetActiveMenuChild(nullptr);
auto dispatcher = MakeRefPtr<AsyncEventDispatcher>(
this, u"DOMMenuInactive"_ns, CanBubble::eYes, ChromeOnlyDispatch::eNo);
dispatcher->PostDOMEvent();
if (RefPtr button = GetContainingMenu()) {
button->PopupClosed(aDeselectMenu);
}
}
void XULPopupElement::ActivateItem(Element& aItemElement,
const ActivateMenuItemOptions& aOptions,
ErrorResult& aRv) {
if (!Contains(&aItemElement)) {
return aRv.ThrowInvalidStateError("Menu item is not inside this menu.");
}
Modifiers modifiers = ConvertModifiers(aOptions);
// First, check if a native menu is open, and activate the item in it.
if (nsXULPopupManager* pm = nsXULPopupManager::GetInstance()) {
if (pm->ActivateNativeMenuItem(&aItemElement, modifiers, aOptions.mButton,
aRv)) {
return;
}
}
auto* item = XULButtonElement::FromNode(aItemElement);
if (!item || !item->IsMenu()) {
return aRv.ThrowInvalidStateError("Not a menu item");
}
if (!item->GetPrimaryFrame(FlushType::Frames)) {
return aRv.ThrowInvalidStateError("Menu item is hidden");
}
auto* popup = item->GetContainingPopupElement();
if (!popup) {
return aRv.ThrowInvalidStateError("No popup");
}
nsMenuPopupFrame* frame = popup->GetFrame(FlushType::None);
if (!frame || !frame->IsOpen()) {
return aRv.ThrowInvalidStateError("Popup is not open");
}
// This is a chrome-only API, so we're trusted.
const bool trusted = true;
// KnownLive because item is aItemElement.
MOZ_KnownLive(item)->ExecuteMenu(modifiers, aOptions.mButton, trusted);
}
void XULPopupElement::MoveTo(int32_t aLeft, int32_t aTop) {
if (nsMenuPopupFrame* menuPopupFrame = do_QueryFrame(GetPrimaryFrame())) {
menuPopupFrame->MoveTo(CSSIntPoint(aLeft, aTop), true);
}
}
void XULPopupElement::MoveToAnchor(Element* aAnchorElement,
const nsAString& aPosition, int32_t aXPos,
int32_t aYPos, bool aAttributesOverride) {
nsMenuPopupFrame* menuPopupFrame = GetFrame(FlushType::None);
if (menuPopupFrame && menuPopupFrame->IsVisibleOrShowing()) {
menuPopupFrame->MoveToAnchor(aAnchorElement, aPosition, aXPos, aYPos,
aAttributesOverride);
}
}
void XULPopupElement::SizeTo(int32_t aWidth, int32_t aHeight) {
nsAutoCString width;
nsAutoCString height;
width.AppendInt(aWidth);
width.AppendLiteral("px");
height.AppendInt(aHeight);
height.AppendLiteral("px");
nsCOMPtr<nsICSSDeclaration> style = Style();
style->SetProperty("width"_ns, width, ""_ns, IgnoreErrors());
style->SetProperty("height"_ns, height, ""_ns, IgnoreErrors());
// If the popup is open, force a reposition of the popup after resizing it
// with notifications set to true so that the popuppositioned event is fired.
nsMenuPopupFrame* menuPopupFrame = do_QueryFrame(GetPrimaryFrame());
if (menuPopupFrame && menuPopupFrame->PopupState() == ePopupShown) {
menuPopupFrame->SetPopupPosition(false);
}
}
void XULPopupElement::GetState(nsString& aState) {
// set this here in case there's no frame for the popup
aState.AssignLiteral("closed");
if (nsXULPopupManager* pm = nsXULPopupManager::GetInstance()) {
switch (pm->GetPopupState(this)) {
case ePopupShown:
aState.AssignLiteral("open");
break;
case ePopupShowing:
case ePopupPositioning:
case ePopupOpening:
case ePopupVisible:
aState.AssignLiteral("showing");
break;
case ePopupHiding:
case ePopupInvisible:
aState.AssignLiteral("hiding");
break;
case ePopupClosed:
break;
default:
MOZ_ASSERT_UNREACHABLE("Bad popup state");
break;
}
}
}
nsINode* XULPopupElement::GetTriggerNode() const {
nsMenuPopupFrame* menuPopupFrame = do_QueryFrame(GetPrimaryFrame());
return nsMenuPopupFrame::GetTriggerContent(menuPopupFrame);
}
// FIXME(emilio): should probably be renamed to GetAnchorElement?
Element* XULPopupElement::GetAnchorNode() const {
nsMenuPopupFrame* menuPopupFrame = do_QueryFrame(GetPrimaryFrame());
if (!menuPopupFrame) {
return nullptr;
}
return Element::FromNodeOrNull(menuPopupFrame->GetAnchor());
}
already_AddRefed<DOMRect> XULPopupElement::GetOuterScreenRect() {
RefPtr<DOMRect> rect = new DOMRect(ToSupports(OwnerDoc()));
// Return an empty rectangle if the popup is not open.
nsMenuPopupFrame* menuPopupFrame =
do_QueryFrame(GetPrimaryFrame(FlushType::Frames));
if (!menuPopupFrame || !menuPopupFrame->IsOpen()) {
return rect.forget();
}
Maybe<CSSRect> screenRect;
if (menuPopupFrame->IsNativeMenu()) {
// For native menus we can't query the true size. Use the anchor rect
// instead, which at least has the position at which we were intending to
// open the menu.
screenRect = Some(CSSRect(menuPopupFrame->GetScreenAnchorRect()));
} else {
// For non-native menus, query the bounds from the widget.
if (nsView* view = menuPopupFrame->GetView()) {
if (nsIWidget* widget = view->GetWidget()) {
screenRect = Some(widget->GetScreenBounds() /
menuPopupFrame->PresContext()->CSSToDevPixelScale());
}
}
}
if (screenRect) {
rect->SetRect(screenRect->X(), screenRect->Y(), screenRect->Width(),
screenRect->Height());
}
return rect.forget();
}
void XULPopupElement::SetConstraintRect(dom::DOMRectReadOnly& aRect) {
nsMenuPopupFrame* menuPopupFrame =
do_QueryFrame(GetPrimaryFrame(FlushType::Frames));
if (menuPopupFrame) {
menuPopupFrame->SetOverrideConstraintRect(CSSIntRect::Truncate(
aRect.Left(), aRect.Top(), aRect.Width(), aRect.Height()));
}
}
bool XULPopupElement::IsWaylandDragSource() const {
#ifdef MOZ_WAYLAND
nsMenuPopupFrame* f = do_QueryFrame(GetPrimaryFrame());
return f && f->IsDragSource();
#else
return false;
#endif
}
bool XULPopupElement::IsWaylandPopup() const {
#ifdef MOZ_WAYLAND
return widget::GdkIsWaylandDisplay() || widget::IsXWaylandProtocol();
#else
return false;
#endif
}
} // namespace mozilla::dom