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-rw-r--r--dom/xul/XULPopupElement.cpp339
1 files changed, 339 insertions, 0 deletions
diff --git a/dom/xul/XULPopupElement.cpp b/dom/xul/XULPopupElement.cpp
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+++ b/dom/xul/XULPopupElement.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 "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