interface ICoreWebView2_9

Artikel
11/18/2024

interface ICoreWebView2_9
  : public ICoreWebView2_8

This interface is an extension of ICoreWebView2_8 that default download dialog positioning and anchoring.

Summary

Members	Descriptions
add_IsDefaultDownloadDialogOpenChanged	Raised when the `IsDefaultDownloadDialogOpen` property changes.
CloseDefaultDownloadDialog	Close the default download dialog.
get_DefaultDownloadDialogCornerAlignment	Get the default download dialog corner alignment.
get_DefaultDownloadDialogMargin	Get the default download dialog margin.
get_IsDefaultDownloadDialogOpen	`TRUE` if the default download dialog is currently open.
OpenDefaultDownloadDialog	Open the default download dialog.
put_DefaultDownloadDialogCornerAlignment	Set the default download dialog corner alignment.
put_DefaultDownloadDialogMargin	Set the default download dialog margin relative to the WebView corner specified by `DefaultDownloadDialogCornerAlignment`.
remove_IsDefaultDownloadDialogOpenChanged	Remove an event handler previously added with `add_IsDefaultDownloadDialogOpenChanged`.

Applies to

Product	Introduced
WebView2 Win32	1.0.1072.54
WebView2 Win32 Prerelease	1.0.1083

Members

add_IsDefaultDownloadDialogOpenChanged

Raised when the IsDefaultDownloadDialogOpen property changes.

public HRESULT add_IsDefaultDownloadDialogOpenChanged(ICoreWebView2IsDefaultDownloadDialogOpenChangedEventHandler * handler, EventRegistrationToken * token)

This event comes after the DownloadStarting event. Setting the Handled property on the DownloadStartingEventArgs disables the default download dialog and ensures that this event is never raised.

CloseDefaultDownloadDialog

Close the default download dialog.

public HRESULT CloseDefaultDownloadDialog()

Calling this method raises the IsDefaultDownloadDialogOpenChanged event if the dialog was open. No effect if the dialog is already closed.

get_DefaultDownloadDialogCornerAlignment

Get the default download dialog corner alignment.

public HRESULT get_DefaultDownloadDialogCornerAlignment(COREWEBVIEW2_DEFAULT_DOWNLOAD_DIALOG_CORNER_ALIGNMENT * value)

get_DefaultDownloadDialogMargin

Get the default download dialog margin.

public HRESULT get_DefaultDownloadDialogMargin(POINT * value)

get_IsDefaultDownloadDialogOpen

TRUE if the default download dialog is currently open.

public HRESULT get_IsDefaultDownloadDialogOpen(BOOL * value)

The value of this property changes only when the default download dialog is explicitly opened or closed. Hiding the WebView implicitly hides the dialog, but does not change the value of this property.

OpenDefaultDownloadDialog

Open the default download dialog.

public HRESULT OpenDefaultDownloadDialog()

If the dialog is opened before there are recent downloads, the dialog shows all past downloads for the current profile. Otherwise, the dialog shows only the recent downloads with a "See more" button for past downloads. Calling this method raises the IsDefaultDownloadDialogOpenChanged event if the dialog was closed. No effect if the dialog is already open.

void ViewComponent::ToggleDefaultDownloadDialog()
{
    if (m_webView2_9)
    {
        BOOL isOpen;
        m_webView2_9->get_IsDefaultDownloadDialogOpen(&isOpen);
        if (isOpen)
        {
            m_webView2_9->CloseDefaultDownloadDialog();
        }
        else
        {
            m_webView2_9->OpenDefaultDownloadDialog();
        }
    }
}

put_DefaultDownloadDialogCornerAlignment

Set the default download dialog corner alignment.

public HRESULT put_DefaultDownloadDialogCornerAlignment(COREWEBVIEW2_DEFAULT_DOWNLOAD_DIALOG_CORNER_ALIGNMENT value)

The dialog can be aligned to any of the WebView corners (see COREWEBVIEW2_DEFAULT_DOWNLOAD_DIALOG_CORNER_ALIGNMENT). When the WebView or dialog changes size, the dialog keeps its position relative to the corner. The dialog may become partially or completely outside of the WebView bounds if the WebView is small enough. Set the margin relative to the corner with the DefaultDownloadDialogMargin property. The corner alignment and margin should be set during initialization to ensure that they are correctly applied when the layout is first computed, otherwise they will not take effect until the next time the WebView position or size is updated.

void ViewComponent::SetDefaultDownloadDialogPosition()
{
    COREWEBVIEW2_DEFAULT_DOWNLOAD_DIALOG_CORNER_ALIGNMENT cornerAlignment =
        COREWEBVIEW2_DEFAULT_DOWNLOAD_DIALOG_CORNER_ALIGNMENT_TOP_LEFT;
    POINT margin = {m_downloadsButtonMargin,
        (m_downloadsButtonMargin + m_downloadsButtonHeight)};
    CHECK_FAILURE(
        m_webView2_9->put_DefaultDownloadDialogCornerAlignment(
        cornerAlignment));
    CHECK_FAILURE(
        m_webView2_9->put_DefaultDownloadDialogMargin(margin));
}

put_DefaultDownloadDialogMargin

Set the default download dialog margin relative to the WebView corner specified by DefaultDownloadDialogCornerAlignment.

public HRESULT put_DefaultDownloadDialogMargin(POINT value)

The margin is a point that describes the vertical and horizontal distances between the chosen WebView corner and the default download dialog corner nearest to it. Positive values move the dialog towards the center of the WebView from the chosen WebView corner, and negative values move the dialog away from it. Use (0, 0) to align the dialog to the WebView corner with no margin. The corner alignment and margin should be set during initialization to ensure that they are correctly applied when the layout is first computed, otherwise they will not take effect until the next time the WebView position or size is updated.

remove_IsDefaultDownloadDialogOpenChanged

Remove an event handler previously added with add_IsDefaultDownloadDialogOpenChanged.

public HRESULT remove_IsDefaultDownloadDialogOpenChanged(EventRegistrationToken token)

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