зеркало из https://github.com/mozilla/gecko-dev.git
101 строка
2.8 KiB
C++
101 строка
2.8 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/KeyboardEvent.h"
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#include "mozilla/dom/KeyboardEventBinding.h"
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#include "mozilla/dom/Element.h"
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#include "nsIFrame.h"
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#include "nsMenuBarFrame.h"
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#include "nsMenuBarListener.h"
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#include "nsMenuFrame.h"
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#include "nsMenuPopupFrame.h"
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#include "mozilla/dom/XULMenuElement.h"
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#include "mozilla/dom/XULMenuElementBinding.h"
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#include "nsXULPopupManager.h"
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namespace mozilla {
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namespace 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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already_AddRefed<Element> XULMenuElement::GetActiveChild() {
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nsMenuFrame* menu = do_QueryFrame(GetPrimaryFrame(FlushType::Frames));
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if (menu) {
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RefPtr<Element> el;
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menu->GetActiveChild(getter_AddRefs(el));
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return el.forget();
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}
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return nullptr;
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}
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void XULMenuElement::SetActiveChild(Element* arg) {
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nsMenuFrame* menu = do_QueryFrame(GetPrimaryFrame(FlushType::Frames));
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if (menu) {
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menu->SetActiveChild(arg);
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}
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}
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bool XULMenuElement::HandleKeyPress(KeyboardEvent& keyEvent) {
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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 (nsMenuBarListener::IsAccessKeyPressed(&keyEvent)) return false;
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nsMenuFrame* menu = do_QueryFrame(GetPrimaryFrame(FlushType::Frames));
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if (!menu) {
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return false;
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}
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nsMenuPopupFrame* popupFrame = menu->GetPopup();
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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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bool XULMenuElement::OpenedWithKey() {
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nsMenuFrame* menuframe = do_QueryFrame(GetPrimaryFrame(FlushType::Frames));
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if (!menuframe) {
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return false;
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}
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nsIFrame* frame = menuframe->GetParent();
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while (frame) {
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nsMenuBarFrame* menubar = do_QueryFrame(frame);
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if (menubar) {
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return menubar->IsActiveByKeyboard();
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}
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frame = frame->GetParent();
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}
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return false;
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}
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} // namespace dom
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} // namespace mozilla
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