/// <summary> /// Called whenever draggable regions for the browser window change. These can /// be specified using the '-webkit-app-region: drag/no-drag' CSS-property. If /// draggable regions are never defined in a document this method will also /// never be called. If the last draggable region is removed from a document /// this method will be called with an empty vector. /// </summary> protected abstract void OnDraggableRegionsChanged(CefBrowser browser, CefDraggableRegion[] regions);
/// <summary> /// Called when a geolocation access request is canceled. |request_id| is the /// unique ID for the permission request. /// </summary> protected abstract void OnCancelGeolocationPermission(CefBrowser browser, int requestId);
/// <summary> /// Called when an external drag event enters the browser window. |dragData| /// contains the drag event data and |mask| represents the type of drag /// operation. Return false for default drag handling behavior or true to /// cancel the drag event. /// </summary> protected abstract bool OnDragEnter(CefBrowser browser, CefDragData dragData, CefDragOperationsMask mask);
/// <summary> /// Called when a page requests permission to access geolocation information. /// |requesting_url| is the URL requesting permission and |request_id| is the /// unique ID for the permission request. Return true and call /// CefGeolocationCallback::Continue() either in this method or at a later /// time to continue or cancel the request. Return false to cancel the request /// immediately. /// </summary> protected abstract bool OnRequestGeolocationPermission(CefBrowser browser, string requestingUrl, int requestId, CefGeolocationCallback callback);
/// <summary>
/// Called when printing has started for the specified |browser|. This method
/// will be called before the other OnPrint*() methods and irrespective of how
/// printing was initiated (e.g. CefBrowserHost::Print(), JavaScript
/// window.print() or PDF extension print button).
/// </summary>
protected virtual void OnPrintStart(CefBrowser browser)
{
}
/// <summary>
/// Called when the browser component has received focus.
/// </summary>
protected virtual void OnGotFocus(CefBrowser browser)
{
}
/// <summary>
/// Called when the browser component is requesting focus. |source| indicates
/// where the focus request is originating from. Return false to allow the
/// focus to be set or true to cancel setting the focus.
/// </summary>
protected virtual bool OnSetFocus(CefBrowser browser, CefFocusSource source)
{
return(false);
}
/// <summary>
/// Called when the browser component is about to loose focus. For instance, if
/// focus was on the last HTML element and the user pressed the TAB key. |next|
/// will be true if the browser is giving focus to the next component and false
/// if the browser is giving focus to the previous component.
/// </summary>
protected virtual void OnTakeFocus(CefBrowser browser, bool next)
{
}