зеркало из https://github.com/mozilla/gecko-dev.git
83 строки
2.4 KiB
C++
83 строки
2.4 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 "mozilla/dom/XULMenuElement.h"
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#include "mozilla/StaticAnalysisFunctions.h"
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#include "mozilla/dom/XULButtonElement.h"
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#include "mozilla/dom/XULMenuElementBinding.h"
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#include "mozilla/dom/XULPopupElement.h"
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#include "mozilla/dom/KeyboardEvent.h"
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#include "mozilla/dom/KeyboardEventBinding.h"
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#include "nsXULPopupManager.h"
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#include "nsMenuPopupFrame.h"
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namespace mozilla::dom {
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JSObject* XULMenuElement::WrapNode(JSContext* aCx,
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JS::Handle<JSObject*> aGivenProto) {
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return XULMenuElement_Binding::Wrap(aCx, this, aGivenProto);
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}
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Element* XULMenuElement::GetActiveMenuChild() {
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RefPtr popup = GetMenuPopupContent();
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return popup ? popup->GetActiveMenuChild() : nullptr;
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}
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void XULMenuElement::SetActiveMenuChild(Element* aChild) {
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RefPtr popup = GetMenuPopupContent();
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if (NS_WARN_IF(!popup)) {
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return;
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}
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if (!aChild) {
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popup->SetActiveMenuChild(nullptr);
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return;
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}
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auto* button = XULButtonElement::FromNode(aChild);
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if (NS_WARN_IF(!button) || NS_WARN_IF(!button->IsMenu())) {
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return;
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}
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// KnownLive because it's aChild.
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popup->SetActiveMenuChild(MOZ_KnownLive(button));
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}
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bool XULButtonElement::HandleKeyPress(KeyboardEvent& keyEvent) {
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RefPtr<nsXULPopupManager> pm = nsXULPopupManager::GetInstance();
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if (!pm) {
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return false;
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}
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// if event has already been handled, bail
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if (keyEvent.DefaultPrevented()) {
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return false;
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}
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if (keyEvent.IsMenuAccessKeyPressed()) {
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return false;
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}
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nsMenuPopupFrame* popupFrame = GetMenuPopup(FlushType::Frames);
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if (NS_WARN_IF(!popupFrame)) {
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return false;
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}
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uint32_t keyCode = keyEvent.KeyCode();
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switch (keyCode) {
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case KeyboardEvent_Binding::DOM_VK_UP:
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case KeyboardEvent_Binding::DOM_VK_DOWN:
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case KeyboardEvent_Binding::DOM_VK_HOME:
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case KeyboardEvent_Binding::DOM_VK_END: {
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nsNavigationDirection theDirection;
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theDirection = NS_DIRECTION_FROM_KEY_CODE(popupFrame, keyCode);
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return pm->HandleKeyboardNavigationInPopup(popupFrame, theDirection);
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}
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default:
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return pm->HandleShortcutNavigation(keyEvent, popupFrame);
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}
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}
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} // namespace mozilla::dom
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