зеркало из https://github.com/mozilla/gecko-dev.git
153 строки
3.7 KiB
C++
153 строки
3.7 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/MenuBoxObject.h"
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#include "mozilla/dom/MenuBoxObjectBinding.h"
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#include "mozilla/dom/KeyboardEvent.h"
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#include "mozilla/dom/Element.h"
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#include "nsIDOMKeyEvent.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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namespace mozilla {
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namespace dom {
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MenuBoxObject::MenuBoxObject()
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{
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}
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MenuBoxObject::~MenuBoxObject()
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{
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}
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JSObject* MenuBoxObject::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
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{
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return MenuBoxObjectBinding::Wrap(aCx, this, aGivenProto);
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}
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void MenuBoxObject::OpenMenu(bool aOpenFlag)
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{
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nsXULPopupManager* pm = nsXULPopupManager::GetInstance();
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if (pm) {
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nsIFrame* frame = GetFrame(false);
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if (frame) {
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if (aOpenFlag) {
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nsCOMPtr<nsIContent> content = mContent;
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pm->ShowMenu(content, false, false);
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}
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else {
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nsMenuFrame* menu = do_QueryFrame(frame);
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if (menu) {
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nsMenuPopupFrame* popupFrame = menu->GetPopup();
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if (popupFrame)
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pm->HidePopup(popupFrame->GetContent(), false, true, false, false);
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}
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}
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}
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}
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}
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already_AddRefed<Element>
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MenuBoxObject::GetActiveChild()
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{
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nsMenuFrame* menu = do_QueryFrame(GetFrame(false));
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if (menu) {
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nsCOMPtr<nsIDOMElement> el;
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menu->GetActiveChild(getter_AddRefs(el));
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nsCOMPtr<Element> ret(do_QueryInterface(el));
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return ret.forget();
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}
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return nullptr;
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}
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void MenuBoxObject::SetActiveChild(Element* arg)
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{
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nsMenuFrame* menu = do_QueryFrame(GetFrame(false));
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if (menu) {
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nsCOMPtr<nsIDOMElement> el(do_QueryInterface(arg));
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menu->SetActiveChild(el);
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}
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}
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bool MenuBoxObject::HandleKeyPress(KeyboardEvent& keyEvent)
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{
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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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bool eventHandled = false;
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keyEvent.GetDefaultPrevented(&eventHandled);
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if (eventHandled) {
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return false;
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}
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if (nsMenuBarListener::IsAccessKeyPressed(&keyEvent))
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return false;
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nsMenuFrame* menu = do_QueryFrame(GetFrame(false));
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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 nsIDOMKeyEvent::DOM_VK_UP:
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case nsIDOMKeyEvent::DOM_VK_DOWN:
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case nsIDOMKeyEvent::DOM_VK_HOME:
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case nsIDOMKeyEvent::DOM_VK_END:
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{
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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 MenuBoxObject::OpenedWithKey()
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{
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nsMenuFrame* menuframe = do_QueryFrame(GetFrame(false));
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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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// Creation Routine ///////////////////////////////////////////////////////////////////////
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using namespace mozilla::dom;
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nsresult
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NS_NewMenuBoxObject(nsIBoxObject** aResult)
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{
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NS_ADDREF(*aResult = new MenuBoxObject());
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return NS_OK;
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}
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