private int on_drag_enter(cef_drag_handler_t *self, cef_browser_t *browser, cef_drag_data_t *dragData, CefDragOperationsMask mask)
{
CheckSelf(self);
var m_browser = CefBrowser.FromNative(browser);
var m_dragData = CefDragData.FromNative(dragData);
var m_result = OnDragEnter(m_browser, m_dragData, mask);
return(m_result ? 1 : 0);
}
private int start_dragging(cef_render_handler_t *self, cef_browser_t *browser, cef_drag_data_t *drag_data, CefDragOperationsMask allowed_ops, int x, int y)
{
CheckSelf(self);
var m_browser = CefBrowser.FromNative(browser);
var m_dragData = CefDragData.FromNative(drag_data);
var m_result = StartDragging(m_browser, m_dragData, allowed_ops, x, y);
return(m_result ? 1 : 0);
}
/// <summary>
/// Returns a copy of the current object.
/// </summary>
public CefDragData Clone()
{
return(CefDragData.FromNative(cef_drag_data_t.clone(_self)));
}
/// <summary>
/// Create a new CefDragData object.
/// </summary>
public static CefDragData Create()
{
return(CefDragData.FromNative(cef_drag_data_t.create()));
}
/// <summary>
/// Called when the user starts dragging content in the web view. Contextual
/// information about the dragged content is supplied by |drag_data|.
/// (|x|, |y|) is the drag start location in screen coordinates.
/// OS APIs that run a system message loop may be used within the
/// StartDragging call.
/// Return false to abort the drag operation. Don't call any of
/// CefBrowserHost::DragSource*Ended* methods after returning false.
/// Return true to handle the drag operation. Call
/// CefBrowserHost::DragSourceEndedAt and DragSourceSystemDragEnded either
/// synchronously or asynchronously to inform the web view that the drag
/// operation has ended.
/// </summary>
protected virtual bool StartDragging(CefBrowser browser, CefDragData dragData, CefDragOperationsMask allowedOps, int x, int y)
{
return(false);
}
/// <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);
