mirror of
https://github.com/mozilla/gecko-dev.git
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340 lines
11 KiB
C++
340 lines
11 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "XULMenuParentElement.h"
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#include "nsCOMPtr.h"
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#include "nsICSSDeclaration.h"
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#include "nsIContent.h"
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#include "nsNameSpaceManager.h"
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#include "nsGkAtoms.h"
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#include "nsMenuPopupFrame.h"
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#include "nsStringFwd.h"
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#include "nsView.h"
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#include "mozilla/AppUnits.h"
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#include "mozilla/AsyncEventDispatcher.h"
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#include "mozilla/dom/DOMRect.h"
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#include "mozilla/dom/Document.h"
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#include "mozilla/dom/Element.h"
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#include "mozilla/dom/Event.h"
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#include "mozilla/dom/XULPopupElement.h"
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#include "mozilla/dom/XULButtonElement.h"
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#include "mozilla/dom/XULMenuElement.h"
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#include "mozilla/dom/XULPopupElementBinding.h"
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#ifdef MOZ_WAYLAND
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# include "mozilla/WidgetUtilsGtk.h"
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#endif
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namespace mozilla::dom {
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nsXULElement* NS_NewXULPopupElement(
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already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo) {
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RefPtr<mozilla::dom::NodeInfo> nodeInfo(aNodeInfo);
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auto* nim = nodeInfo->NodeInfoManager();
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return new (nim) XULPopupElement(nodeInfo.forget());
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}
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JSObject* XULPopupElement::WrapNode(JSContext* aCx,
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JS::Handle<JSObject*> aGivenProto) {
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return XULPopupElement_Binding::Wrap(aCx, this, aGivenProto);
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}
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nsMenuPopupFrame* XULPopupElement::GetFrame(FlushType aFlushType) {
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nsIFrame* f = GetPrimaryFrame(aFlushType);
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MOZ_ASSERT(!f || f->IsMenuPopupFrame());
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return static_cast<nsMenuPopupFrame*>(f);
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}
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void XULPopupElement::OpenPopup(Element* aAnchorElement,
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const StringOrOpenPopupOptions& aOptions,
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int32_t aXPos, int32_t aYPos,
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bool aIsContextMenu, bool aAttributesOverride,
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Event* aTriggerEvent) {
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nsAutoString position;
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if (aOptions.IsOpenPopupOptions()) {
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const OpenPopupOptions& options = aOptions.GetAsOpenPopupOptions();
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position = options.mPosition;
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aXPos = options.mX;
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aYPos = options.mY;
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aIsContextMenu = options.mIsContextMenu;
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aAttributesOverride = options.mAttributesOverride;
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aTriggerEvent = options.mTriggerEvent;
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} else {
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position = aOptions.GetAsString();
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}
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nsXULPopupManager* pm = nsXULPopupManager::GetInstance();
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if (!pm) {
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return;
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}
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// As a special case for popups that are menus when no anchor or position
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// are specified, open the popup with ShowMenu instead of ShowPopup so that
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// the popup is aligned with the menu.
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if (!aAnchorElement && position.IsEmpty() && GetPrimaryFrame()) {
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if (auto* menu = GetContainingMenu()) {
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pm->ShowMenu(menu, false);
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return;
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}
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}
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pm->ShowPopup(this, aAnchorElement, position, aXPos, aYPos, aIsContextMenu,
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aAttributesOverride, false, aTriggerEvent);
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}
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void XULPopupElement::OpenPopupAtScreen(int32_t aXPos, int32_t aYPos,
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bool aIsContextMenu,
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Event* aTriggerEvent) {
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nsXULPopupManager* pm = nsXULPopupManager::GetInstance();
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if (pm) {
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pm->ShowPopupAtScreen(this, aXPos, aYPos, aIsContextMenu, aTriggerEvent);
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}
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}
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void XULPopupElement::OpenPopupAtScreenRect(const nsAString& aPosition,
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int32_t aXPos, int32_t aYPos,
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int32_t aWidth, int32_t aHeight,
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bool aIsContextMenu,
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bool aAttributesOverride,
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Event* aTriggerEvent) {
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nsXULPopupManager* pm = nsXULPopupManager::GetInstance();
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if (pm) {
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pm->ShowPopupAtScreenRect(
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this, aPosition, nsIntRect(aXPos, aYPos, aWidth, aHeight),
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aIsContextMenu, aAttributesOverride, aTriggerEvent);
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}
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}
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void XULPopupElement::HidePopup(bool aCancel) {
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nsXULPopupManager* pm = nsXULPopupManager::GetInstance();
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if (!pm) {
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return;
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}
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HidePopupOptions options{HidePopupOption::DeselectMenu};
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if (aCancel) {
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options += HidePopupOption::IsRollup;
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}
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pm->HidePopup(this, options);
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}
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static Modifiers ConvertModifiers(const ActivateMenuItemOptions& aModifiers) {
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Modifiers modifiers = 0;
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if (aModifiers.mCtrlKey) {
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modifiers |= MODIFIER_CONTROL;
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}
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if (aModifiers.mAltKey) {
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modifiers |= MODIFIER_ALT;
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}
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if (aModifiers.mShiftKey) {
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modifiers |= MODIFIER_SHIFT;
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}
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if (aModifiers.mMetaKey) {
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modifiers |= MODIFIER_META;
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}
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return modifiers;
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}
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void XULPopupElement::PopupOpened(bool aSelectFirstItem) {
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if (aSelectFirstItem) {
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SelectFirstItem();
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}
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if (RefPtr button = GetContainingMenu()) {
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if (RefPtr parent = button->GetMenuParent()) {
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parent->SetActiveMenuChild(button);
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}
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}
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}
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void XULPopupElement::PopupClosed(bool aDeselectMenu) {
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LockMenuUntilClosed(false);
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SetActiveMenuChild(nullptr);
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auto dispatcher = MakeRefPtr<AsyncEventDispatcher>(
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this, u"DOMMenuInactive"_ns, CanBubble::eYes, ChromeOnlyDispatch::eNo);
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dispatcher->PostDOMEvent();
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if (RefPtr button = GetContainingMenu()) {
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button->PopupClosed(aDeselectMenu);
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}
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}
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void XULPopupElement::ActivateItem(Element& aItemElement,
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const ActivateMenuItemOptions& aOptions,
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ErrorResult& aRv) {
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if (!Contains(&aItemElement)) {
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return aRv.ThrowInvalidStateError("Menu item is not inside this menu.");
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}
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Modifiers modifiers = ConvertModifiers(aOptions);
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// First, check if a native menu is open, and activate the item in it.
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if (nsXULPopupManager* pm = nsXULPopupManager::GetInstance()) {
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if (pm->ActivateNativeMenuItem(&aItemElement, modifiers, aOptions.mButton,
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aRv)) {
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return;
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}
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}
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auto* item = XULButtonElement::FromNode(aItemElement);
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if (!item || !item->IsMenu()) {
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return aRv.ThrowInvalidStateError("Not a menu item");
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}
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if (!item->GetPrimaryFrame(FlushType::Frames)) {
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return aRv.ThrowInvalidStateError("Menu item is hidden");
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}
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auto* popup = item->GetContainingPopupElement();
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if (!popup) {
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return aRv.ThrowInvalidStateError("No popup");
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}
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nsMenuPopupFrame* frame = popup->GetFrame(FlushType::None);
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if (!frame || !frame->IsOpen()) {
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return aRv.ThrowInvalidStateError("Popup is not open");
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}
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// This is a chrome-only API, so we're trusted.
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const bool trusted = true;
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// KnownLive because item is aItemElement.
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MOZ_KnownLive(item)->ExecuteMenu(modifiers, aOptions.mButton, trusted);
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}
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void XULPopupElement::MoveTo(int32_t aLeft, int32_t aTop) {
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if (nsMenuPopupFrame* menuPopupFrame = do_QueryFrame(GetPrimaryFrame())) {
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menuPopupFrame->MoveTo(CSSIntPoint(aLeft, aTop), true);
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}
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}
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void XULPopupElement::MoveToAnchor(Element* aAnchorElement,
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const nsAString& aPosition, int32_t aXPos,
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int32_t aYPos, bool aAttributesOverride) {
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nsMenuPopupFrame* menuPopupFrame = GetFrame(FlushType::None);
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if (menuPopupFrame && menuPopupFrame->IsVisibleOrShowing()) {
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menuPopupFrame->MoveToAnchor(aAnchorElement, aPosition, aXPos, aYPos,
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aAttributesOverride);
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}
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}
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void XULPopupElement::SizeTo(int32_t aWidth, int32_t aHeight) {
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nsAutoCString width;
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nsAutoCString height;
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width.AppendInt(aWidth);
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width.AppendLiteral("px");
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height.AppendInt(aHeight);
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height.AppendLiteral("px");
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nsCOMPtr<nsICSSDeclaration> style = Style();
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style->SetProperty("width"_ns, width, ""_ns, IgnoreErrors());
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style->SetProperty("height"_ns, height, ""_ns, IgnoreErrors());
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// If the popup is open, force a reposition of the popup after resizing it
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// with notifications set to true so that the popuppositioned event is fired.
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nsMenuPopupFrame* menuPopupFrame = do_QueryFrame(GetPrimaryFrame());
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if (menuPopupFrame && menuPopupFrame->PopupState() == ePopupShown) {
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menuPopupFrame->SetPopupPosition(false);
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}
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}
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void XULPopupElement::GetState(nsString& aState) {
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// set this here in case there's no frame for the popup
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aState.AssignLiteral("closed");
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if (nsXULPopupManager* pm = nsXULPopupManager::GetInstance()) {
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switch (pm->GetPopupState(this)) {
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case ePopupShown:
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aState.AssignLiteral("open");
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break;
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case ePopupShowing:
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case ePopupPositioning:
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case ePopupOpening:
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case ePopupVisible:
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aState.AssignLiteral("showing");
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break;
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case ePopupHiding:
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case ePopupInvisible:
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aState.AssignLiteral("hiding");
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break;
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case ePopupClosed:
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break;
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default:
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MOZ_ASSERT_UNREACHABLE("Bad popup state");
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break;
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}
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}
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}
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nsINode* XULPopupElement::GetTriggerNode() const {
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nsMenuPopupFrame* menuPopupFrame = do_QueryFrame(GetPrimaryFrame());
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return nsMenuPopupFrame::GetTriggerContent(menuPopupFrame);
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}
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// FIXME(emilio): should probably be renamed to GetAnchorElement?
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Element* XULPopupElement::GetAnchorNode() const {
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nsMenuPopupFrame* menuPopupFrame = do_QueryFrame(GetPrimaryFrame());
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if (!menuPopupFrame) {
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return nullptr;
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}
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return Element::FromNodeOrNull(menuPopupFrame->GetAnchor());
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}
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already_AddRefed<DOMRect> XULPopupElement::GetOuterScreenRect() {
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RefPtr<DOMRect> rect = new DOMRect(ToSupports(OwnerDoc()));
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// Return an empty rectangle if the popup is not open.
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nsMenuPopupFrame* menuPopupFrame =
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do_QueryFrame(GetPrimaryFrame(FlushType::Frames));
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if (!menuPopupFrame || !menuPopupFrame->IsOpen()) {
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return rect.forget();
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}
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Maybe<CSSRect> screenRect;
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if (menuPopupFrame->IsNativeMenu()) {
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// For native menus we can't query the true size. Use the anchor rect
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// instead, which at least has the position at which we were intending to
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// open the menu.
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screenRect = Some(CSSRect(menuPopupFrame->GetScreenAnchorRect()));
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} else {
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// For non-native menus, query the bounds from the widget.
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if (nsView* view = menuPopupFrame->GetView()) {
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if (nsIWidget* widget = view->GetWidget()) {
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screenRect = Some(widget->GetScreenBounds() /
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menuPopupFrame->PresContext()->CSSToDevPixelScale());
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}
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}
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}
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if (screenRect) {
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rect->SetRect(screenRect->X(), screenRect->Y(), screenRect->Width(),
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screenRect->Height());
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}
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return rect.forget();
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}
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void XULPopupElement::SetConstraintRect(dom::DOMRectReadOnly& aRect) {
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nsMenuPopupFrame* menuPopupFrame =
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do_QueryFrame(GetPrimaryFrame(FlushType::Frames));
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if (menuPopupFrame) {
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menuPopupFrame->SetOverrideConstraintRect(CSSIntRect::Truncate(
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aRect.Left(), aRect.Top(), aRect.Width(), aRect.Height()));
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}
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}
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bool XULPopupElement::IsWaylandDragSource() const {
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#ifdef MOZ_WAYLAND
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nsMenuPopupFrame* f = do_QueryFrame(GetPrimaryFrame());
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return f && f->IsDragSource();
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#else
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return false;
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#endif
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}
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bool XULPopupElement::IsWaylandPopup() const {
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#ifdef MOZ_WAYLAND
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return widget::GdkIsWaylandDisplay() || widget::IsXWaylandProtocol();
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#else
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return false;
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#endif
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}
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} // namespace mozilla::dom
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