C++ (Cpp) IWebView::backForwardList Examples

Example #1

File: WinLauncher.cpp Project: chenbk85/webkit2-wincairo

void WinLauncher::showLastVisitedSites(IWebView& webView)
{
    HMENU menu = ::GetMenu(m_hMainWnd);

    _com_ptr_t<_com_IIID<IWebBackForwardList, &__uuidof(IWebBackForwardList)>> backForwardList;
    HRESULT hr = webView.backForwardList(&backForwardList.GetInterfacePtr());
    if (FAILED(hr))
        return;

    int capacity = 0;
    hr = backForwardList->capacity(&capacity);
    if (FAILED(hr))
        return;

    int backCount = 0;
    hr = backForwardList->backListCount(&backCount);
    if (FAILED(hr))
        return;

    UINT backSetting = MF_BYCOMMAND | (backCount) ? MF_ENABLED : MF_DISABLED;
    ::EnableMenuItem(menu, IDM_HISTORY_BACKWARD, backSetting);

    int forwardCount = 0;
    hr = backForwardList->forwardListCount(&forwardCount);
    if (FAILED(hr))
        return;

    UINT forwardSetting = MF_BYCOMMAND | (forwardCount) ? MF_ENABLED : MF_DISABLED;
    ::EnableMenuItem(menu, IDM_HISTORY_FORWARD, forwardSetting);

    IWebHistoryItemPtr currentItem;
    hr = backForwardList->currentItem(&currentItem.GetInterfacePtr());
    if (FAILED(hr))
        return;

    hr = m_webHistory->addItems(1, &currentItem.GetInterfacePtr());
    if (FAILED(hr))
        return;

    _com_ptr_t<_com_IIID<IWebHistoryPrivate, &__uuidof(IWebHistoryPrivate)>> webHistory;
    hr = m_webHistory->QueryInterface(IID_IWebHistoryPrivate, reinterpret_cast<void**>(&webHistory.GetInterfacePtr()));
    if (FAILED(hr))
        return;

    int totalListCount = 0;
    hr = webHistory->allItems(&totalListCount, 0);
    if (FAILED(hr))
        return;

    m_historyItems.resize(totalListCount);

    std::vector<IWebHistoryItem*> historyToLoad(totalListCount);
    hr = webHistory->allItems(&totalListCount, historyToLoad.data());
    if (FAILED(hr))
        return;

    size_t i = 0;
    for (auto& cur : historyToLoad) {
        m_historyItems[i].Attach(cur);
        ++i;
    }

    int allItemsOffset = 0;
    if (totalListCount > maxHistorySize)
        allItemsOffset = totalListCount - maxHistorySize;

    int currentHistoryItem = 0;
    for (int i = 0; i < totalListCount; ++i) {
        updateMenuItemForHistoryItem(menu, *(m_historyItems[allItemsOffset + currentHistoryItem]), currentHistoryItem);
        ++currentHistoryItem;
    }

    // Hide any history we aren't using yet.
    for (int i = currentHistoryItem; i < maxHistorySize; ++i)
        ::EnableMenuItem(menu, IDM_HISTORY_LINK0 + i, MF_BYCOMMAND | MF_DISABLED);
}