SuperDesign/Source/RySmartEditor/Controls/Highlight/ContextMenuStripHighlightText2.cs

using ryCommon;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Diagnostics;
using System.Linq;
using System.Text;
using System.Threading;
using System.Windows.Forms;

namespace ryControls
{
    public partial class ContextMenuStripHighlightText2 : ContextMenuStrip
    {
        public ContextMenuStripHighlightText2()
        {
            InitializeComponent();
            AddMenu("撤销", "undo").Click += Undo_Click;
            AddMenu("重做", "redo").Click += Redo_Click;
            AddSeparatorMenu();
            AddMenu("剪切", "cut").Click += Cut_Click;
            AddMenu("复制", "copy").Click += Copy_Click;
            AddMenu("粘贴", "paste").Click += Paste_Click;
            AddMenu("删除", "del").Click += Del_Click;
            AddMenu("全选", "selectall").Click += SelectAll_Click;
            AddMenu("查找", "find").Click += Find_Click;
            AddSeparatorMenu();
            AddMenu("用百度搜索选中内容", "bdsearch").Click += BDSearch_Click;
        }
        private void BDSearch_Click(object sender, EventArgs e)
        {
            if (base.SourceControl is ScintillaNETV2.Scintilla editor)
            {
                RyFiles.OpenUrl("https://www.baidu.com/s?wd=" +RyWeb.WebDecode.UrlEncode(editor.SelectedText));
            }
        }
        private void Find_Click(object sender, EventArgs e)
        {
            if(base.SourceControl is ScintillaNETV2.Scintilla editor)
            {
                if(editor.Parent is HighlightEditor rich_txt)
                {
                    rich_txt.ShowFind();
                }
            }
        }
        private void SelectAll_Click(object sender, EventArgs e)
        {
            if (!(base.SourceControl is ScintillaNETV2.Scintilla)) { return; }
            var rich_txt = (ScintillaNETV2.Scintilla)base.SourceControl;
            rich_txt.SelectAll();
            //Thread th = new Thread(sendkey);
            //th.Start();
            //void sendkey()
            //{
            //    Thread.Sleep(100);
            //    this.Invoke(new Action(() =>
            //    {
            //        SendKeys.SendWait("^a");
            //    }));
            //}
        }
        private void Undo_Click(object sender, EventArgs e)
        {
           if(!(base.SourceControl is ScintillaNETV2.Scintilla)) { return; }
            var rich_txt = (ScintillaNETV2.Scintilla)base.SourceControl;
            rich_txt.Undo();
        }
        private void Redo_Click(object sender, EventArgs e)
        {
            if (!(base.SourceControl is ScintillaNETV2.Scintilla)) { return; }
            var rich_txt = (ScintillaNETV2.Scintilla)base.SourceControl;
            rich_txt.Redo();
        }
        private void Cut_Click(object sender, EventArgs e)
        {
            if (!(base.SourceControl is ScintillaNETV2.Scintilla)) { return; }
            var rich_txt = (ScintillaNETV2.Scintilla)base.SourceControl;
            rich_txt.Cut();
        }
        private void Copy_Click(object sender, EventArgs e)
        {
            if (!(base.SourceControl is ScintillaNETV2.Scintilla)) { return; }
            var rich_txt = (ScintillaNETV2.Scintilla)base.SourceControl;
            //var ss = rich_txt.SelectedText;
            rich_txt.Copy();
        }
        private void Paste_Click(object sender, EventArgs e)
        {
            if (!(base.SourceControl is ScintillaNETV2.Scintilla)) { return; }
            var rich_txt = (ScintillaNETV2.Scintilla)base.SourceControl;
            rich_txt.Paste();
        }
        private void Del_Click(object sender, EventArgs e)
        {
            if (!(base.SourceControl is ScintillaNETV2.Scintilla)) { return; }
            var rich_txt = (ScintillaNETV2.Scintilla)base.SourceControl;
            rich_txt.DeleteRange(rich_txt.SelectionStart,rich_txt.SelectedText.Length);
        }
        public ToolStripSeparator AddSeparatorMenu()
        {
            ToolStripSeparator item = new ToolStripSeparator();
            base.Items.Add(item);
            return item;
        }
        public ToolStripMenuItem AddMenu(string name, string tag)
        {
            ToolStripMenuItem item = new ToolStripMenuItem(name)
            {
                Tag = tag
            };
            base.Items.Add(item);
            return item;
        }

        private void ContextMenuStripRichText_Opening(object sender, CancelEventArgs e)
        {
            if (!(base.SourceControl is ScintillaNETV2.Scintilla)) { return; }
            var rich_txt = (ScintillaNETV2.Scintilla)base.SourceControl;
            for (int i = 0; i < base.Items.Count; i++)
            {
                var item = base.Items[i];
                if (item.Tag == null) { continue; }
                switch(item.Tag.ToString())
                {
                    case "undo":
                        item.Enabled = rich_txt.CanUndo && !rich_txt.ReadOnly;
                        break;
                    case "redo":
                        item.Enabled = rich_txt.CanRedo && !rich_txt.ReadOnly;
                        break;
                    case "cut":
                        item.Enabled = (rich_txt.SelectedText != "" && !rich_txt.ReadOnly);
                        break;
                    case "copy":
                        item.Enabled = rich_txt.SelectedText != "";
                        break;
                    case "paste":
                        item.Enabled = !rich_txt.ReadOnly;
                        break;
                    case "del":
                        item.Enabled =(rich_txt.SelectedText != "" && !rich_txt.ReadOnly);
                        break;
                    case "bdsearch":
                        item.Enabled = (rich_txt.SelectedText != "" && rich_txt.SelectedText.IndexOfEx("\n")<0 && rich_txt.SelectedText.Length<50);
                        break;
                    case "selectall":
                        item.Enabled = rich_txt.SelectedText != rich_txt.Text;
                        break;
                }
            }
        }
    }
}