3rdpartylibs/fastreports.wpf/FastReport.Mono/Controls/ToolStripOpenButton.cs

using FastReport.Design;
using FastReport.Utils;
using System;
using System.ComponentModel;
using System.Windows.Forms;

namespace FastReport.Controls
{
    internal class ToolStripOpenButton : ToolStripSplitButton
    {
        private Designer designer;

        private void btnOpen_DropDownOpening(object sender, EventArgs e)
        {
            DropDown.Items.Clear();
            if (designer.cmdRecentFiles.Enabled)
            {
                foreach (string s in designer.RecentFiles)
                {
                    var item = new ToolStripMenuItem(s) { Font = DrawUtils.DefaultFont };
                    if (designer.cmdRecentFiles.IsCloudFile(s))
                        item.Image = designer.GetImage(259);
                    DropDown.Items.Insert(0, item);
                }
            }
            
            // wpf
            if (e is CancelEventArgs c && DropDown.Items.Count == 0)
                c.Cancel = true;
        }

        private void btnOpen_DropDownItemClicked(object sender, ToolStripItemClickedEventArgs e)
        {
            DropDown.Close();
            designer.cmdRecentFiles.LoadFile(e.ClickedItem.Text);
        }

        public ToolStripOpenButton(Designer designer)
        {
            this.designer = designer;
            DisplayStyle = ToolStripItemDisplayStyle.Image;
            DropDownOpening += btnOpen_DropDownOpening;
            ButtonClick += designer.cmdOpen.Invoke;
            DropDownItemClicked += btnOpen_DropDownItemClicked;
        }
    }
}