namespace SolutionOpen
{
	using System;
	using System.Collections;
	using System.Collections.Generic;
	using System.Collections.Specialized;
	using System.Text.RegularExpressions;
	using System.Windows.Forms;
	using EnvDTE;
	using EnvDTE80;
	using Microsoft.Win32;

	public class MyTextBox : System.Windows.Forms.TextBox
	{
		protected override bool IsInputKey(Keys keyData)
		{
			if (keyData.Equals(System.Windows.Forms.Keys.Down) || keyData.Equals(System.Windows.Forms.Keys.Escape))
				return true;
			return base.IsInputKey(keyData);
		}
	}

	public class MyNumericTextBox : System.Windows.Forms.TextBox
	{
		protected override void OnKeyPress(KeyPressEventArgs e)
		{
			base.OnKeyPress(e);
			if (!Char.IsDigit(e.KeyChar) && e.KeyChar != '\b')
				e.Handled = true;
		}
	}
	
	public class MyListView : System.Windows.Forms.ListView
	{
		protected override bool IsInputKey(Keys keyData)
		{
			if (keyData.Equals(System.Windows.Forms.Keys.Escape))
				return true;
			return base.IsInputKey(keyData);
		}
	}

	partial class ChooseFile
	{
		/// <summary>
		/// Required designer variable.
		/// </summary>
		private System.ComponentModel.IContainer components = null;

		/// <summary>
		/// Clean up any resources being used.
		/// </summary>
		/// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
		protected override void Dispose(bool disposing)
		{
			if (disposing && (components != null))
			{
				components.Dispose();
			}
			base.Dispose(disposing);
		}

		private void Abort()
		{
			SaveToRegistry();
			DialogResult = DialogResult.Abort;
			Close();
		}

		private void Accept()
		{
			SaveToRegistry();
			DialogResult = DialogResult.OK;
			Close();
		}

		private void LoadFromRegistry()
		{
			RegistryKey key = Registry.CurrentUser.OpenSubKey(registryKeyName);
			if (key != null)
			{
				object value = key.GetValue(lastSearchRegistryValueName);
				if (value != null)
				{
					string text = value as string;
					if (text != null)
						searchTokens.Text = text;
				}

				value = key.GetValue(displayLimitRegistryValueName);
				if (value != null)
				{
					string text = value as string;
					if (text != null)
						displayLimit.Text = text;
				}

			}
		}

		private void SaveToRegistry()
		{
			RegistryKey key = Registry.CurrentUser.CreateSubKey(registryKeyName);
			if (key != null)
			{
				key.SetValue(lastSearchRegistryValueName, searchTokens.Text);
				key.SetValue(displayLimitRegistryValueName, displayLimit.Text);
			}
		}

		private void searchTokens_KeyDown(object sender, System.Windows.Forms.KeyEventArgs e)
		{
			if (e.KeyData.Equals(System.Windows.Forms.Keys.Down))
			{
				e.Handled = true;
				matchingFiles.Focus();
			}
			else
				if (e.KeyData.Equals(System.Windows.Forms.Keys.Enter))
				{
					e.Handled = true;
					Accept();
				}
				else
					if (e.KeyData.Equals(System.Windows.Forms.Keys.Escape))
					{
						e.Handled = true;
						Abort();
					}
		}

		private void searchTokens_TextChanged(object sender, EventArgs e)
		{
			RebuildListViewItems();
		}

		private void displayLimit_TextChanged(object sender, EventArgs e)
		{
			RebuildListViewItems();
		}

		private void RebuildListViewItems()
		{
			// build the patterns to match against
			string text = searchTokens.Text.ToLower();
			string []tokens = text.Split(' ');
			List<Regex> regularExpressions = new List<Regex>();
			foreach (string token in tokens)
			{
				if (token != "")
					regularExpressions.Add(new System.Text.RegularExpressions.Regex(token));
			}

			// build the list of items to add
			List<ListViewItem> newItems = new List<ListViewItem>();
			foreach (string pathName in pathNames.Values)
			{
				int slash = pathName.LastIndexOf('\\');
				if (slash > 0)
				{
					// separate the file name and the path
					string fileNameMixedCase = pathName.Substring(slash + 1);
					string fileNameLowerCase = fileNameMixedCase.ToLower();
					string path = pathName.Substring(0, slash);

					// validate this file matches all search parameters
					bool pass = true;
					foreach (Regex regex in regularExpressions)
					{
						if (!regex.IsMatch(fileNameLowerCase))
						{
							pass = false;
							break;
						}
					}

					// add the item to the list if it passed all the search parameters
					if (pass)
						newItems.Add(new ListViewItem(new String[] { fileNameMixedCase, path }));
				}
			}

			matchingFiles.BeginUpdate();
			try
			{
				matchingFiles.Items.Clear();
				matchingFiles.SelectedItems.Clear();
				numberOfMatchingFiles.Text = newItems.Count.ToString();

				// get the limit
				int maximum = -1;
				try
				{
					maximum = System.Convert.ToInt32(displayLimit.Text, 10);
				}
				catch
				{
				}
												
				if (maximum < 0 || newItems.Count < maximum)
					matchingFiles.Items.AddRange(newItems.ToArray());

				// auto select the first element if any elements passed the search
				if (matchingFiles.Items.Count > 0)
				{
					matchingFiles.Items[0].Selected = true;
					matchingFiles.FocusedItem = matchingFiles.Items[0];
				}
			}
			finally
			{
				matchingFiles.EndUpdate();
			}
		}

		private void listBox1_DoubleClick(object sender, System.EventArgs e)
		{
			Accept();
		}

		private void listBox1_KeyDown(object sender, System.Windows.Forms.KeyEventArgs e)
		{
			if (e.KeyData.Equals(System.Windows.Forms.Keys.Enter))
			{
				e.Handled = true;
				Accept();
			}
			else
				if (e.KeyData.Equals(System.Windows.Forms.Keys.Escape))
				{
					e.Handled = true;
					Abort();
				}
		}

		private void button1_Click(object sender, System.EventArgs e)
		{
			Accept();
		}

		private void button2_Click(object sender, System.EventArgs e)
		{
			Abort();
		}

		public void OpenSelectedFiles()
		{
			// open all the selected items
			foreach (ListViewItem item in matchingFiles.SelectedItems)
			{
				// recompile the path and file name to get the path name
				string pathName = "";
				foreach (ListViewItem.ListViewSubItem piece in item.SubItems)
				{
					if (pathName.Length == 0)
					{
						pathName = piece.Text;
					}
					else
					{
						pathName = piece.Text + "\\" + pathName;
					}
				}

				applicationObject.ItemOperations.OpenFile(pathName, EnvDTE.Constants.vsViewKindPrimary);
			}
		}

		#region Windows Form Designer generated code

		/// <summary>
		/// Required method for Designer support - do not modify
		/// the contents of this method with the code editor.
		/// </summary>
		private void InitializeComponent()
		{
			this.searchTokensLabel = new System.Windows.Forms.Label();
			this.openButton = new System.Windows.Forms.Button();
			this.matchingFilesLabel = new System.Windows.Forms.Label();
			this.cancelButton = new System.Windows.Forms.Button();
			this.numberOfMatchingFiles = new System.Windows.Forms.TextBox();
			this.displayLimitLabel = new System.Windows.Forms.Label();
			this.displayLimit = new SolutionOpen.MyNumericTextBox();
			this.matchingFiles = new SolutionOpen.MyListView();
			this.FileName = new System.Windows.Forms.ColumnHeader();
			this.Path = new System.Windows.Forms.ColumnHeader();
			this.searchTokens = new SolutionOpen.MyTextBox();
			this.SuspendLayout();
			// 
			// searchTokensLabel
			// 
			this.searchTokensLabel.AutoSize = true;
			this.searchTokensLabel.ImageAlign = System.Drawing.ContentAlignment.MiddleLeft;
			this.searchTokensLabel.Location = new System.Drawing.Point(12, 9);
			this.searchTokensLabel.Name = "searchTokensLabel";
			this.searchTokensLabel.Size = new System.Drawing.Size(134, 13);
			this.searchTokensLabel.TabIndex = 5;
			this.searchTokensLabel.Text = "File name to match (regex):";
			// 
			// openButton
			// 
			this.openButton.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Right)));
			this.openButton.Location = new System.Drawing.Point(658, 25);
			this.openButton.Name = "openButton";
			this.openButton.Size = new System.Drawing.Size(69, 22);
			this.openButton.TabIndex = 2;
			this.openButton.Text = "Open";
			this.openButton.Click += new System.EventHandler(this.button1_Click);
			// 
			// matchingFilesLabel
			// 
			this.matchingFilesLabel.AutoSize = true;
			this.matchingFilesLabel.Location = new System.Drawing.Point(12, 60);
			this.matchingFilesLabel.Name = "matchingFilesLabel";
			this.matchingFilesLabel.Size = new System.Drawing.Size(75, 13);
			this.matchingFilesLabel.TabIndex = 6;
			this.matchingFilesLabel.Text = "Matching files:";
			// 
			// cancelButton
			// 
			this.cancelButton.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Right)));
			this.cancelButton.Location = new System.Drawing.Point(658, 53);
			this.cancelButton.Name = "cancelButton";
			this.cancelButton.Size = new System.Drawing.Size(69, 22);
			this.cancelButton.TabIndex = 3;
			this.cancelButton.Text = "Cancel";
			this.cancelButton.Click += new System.EventHandler(this.button2_Click);
			// 
			// numberOfMatchingFiles
			// 
			this.numberOfMatchingFiles.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left)
									| System.Windows.Forms.AnchorStyles.Right)));
			this.numberOfMatchingFiles.Font = new System.Drawing.Font("Courier New", 9.75F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
			this.numberOfMatchingFiles.Location = new System.Drawing.Point(93, 55);
			this.numberOfMatchingFiles.Name = "numberOfMatchingFiles";
			this.numberOfMatchingFiles.ReadOnly = true;
			this.numberOfMatchingFiles.Size = new System.Drawing.Size(61, 22);
			this.numberOfMatchingFiles.TabIndex = 7;
			this.numberOfMatchingFiles.TabStop = false;
			// 
			// displayLimitLabel
			// 
			this.displayLimitLabel.AutoSize = true;
			this.displayLimitLabel.Location = new System.Drawing.Point(193, 60);
			this.displayLimitLabel.Name = "displayLimitLabel";
			this.displayLimitLabel.Size = new System.Drawing.Size(64, 13);
			this.displayLimitLabel.TabIndex = 8;
			this.displayLimitLabel.Text = "Display limit:";
			// 
			// displayLimit
			// 
			this.displayLimit.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left)
									| System.Windows.Forms.AnchorStyles.Right)));
			this.displayLimit.Font = new System.Drawing.Font("Courier New", 9.75F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
			this.displayLimit.Location = new System.Drawing.Point(265, 55);
			this.displayLimit.MaxLength = 6;
			this.displayLimit.Name = "displayLimit";
			this.displayLimit.Size = new System.Drawing.Size(61, 22);
			this.displayLimit.TabIndex = 4;
			this.displayLimit.TextChanged += new System.EventHandler(this.displayLimit_TextChanged);
			// 
			// matchingFiles
			// 
			this.matchingFiles.Anchor = ((System.Windows.Forms.AnchorStyles)((((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom)
									| System.Windows.Forms.AnchorStyles.Left)
									| System.Windows.Forms.AnchorStyles.Right)));
			this.matchingFiles.Columns.AddRange(new System.Windows.Forms.ColumnHeader[] {
            this.FileName,
            this.Path});
			this.matchingFiles.FullRowSelect = true;
			this.matchingFiles.GridLines = true;
			this.matchingFiles.HeaderStyle = System.Windows.Forms.ColumnHeaderStyle.Nonclickable;
			this.matchingFiles.HideSelection = false;
			this.matchingFiles.Location = new System.Drawing.Point(12, 82);
			this.matchingFiles.Name = "matchingFiles";
			this.matchingFiles.Size = new System.Drawing.Size(715, 273);
			this.matchingFiles.Sorting = System.Windows.Forms.SortOrder.Ascending;
			this.matchingFiles.TabIndex = 1;
			this.matchingFiles.UseCompatibleStateImageBehavior = false;
			this.matchingFiles.View = System.Windows.Forms.View.Details;
			this.matchingFiles.DoubleClick += new System.EventHandler(this.listBox1_DoubleClick);
			this.matchingFiles.KeyDown += new System.Windows.Forms.KeyEventHandler(this.listBox1_KeyDown);
			// 
			// FileName
			// 
			this.FileName.Text = "File Name";
			this.FileName.Width = 275;
			// 
			// Path
			// 
			this.Path.Text = "Path";
			this.Path.Width = 408;
			// 
			// searchTokens
			// 
			this.searchTokens.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left)
									| System.Windows.Forms.AnchorStyles.Right)));
			this.searchTokens.Font = new System.Drawing.Font("Courier New", 9.75F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
			this.searchTokens.Location = new System.Drawing.Point(12, 25);
			this.searchTokens.Name = "searchTokens";
			this.searchTokens.Size = new System.Drawing.Size(631, 22);
			this.searchTokens.TabIndex = 0;
			this.searchTokens.TextChanged += new System.EventHandler(this.searchTokens_TextChanged);
			this.searchTokens.KeyDown += new System.Windows.Forms.KeyEventHandler(this.searchTokens_KeyDown);
			// 
			// ChooseFile
			// 
			this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
			this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
			this.ClientSize = new System.Drawing.Size(740, 367);
			this.Controls.Add(this.displayLimit);
			this.Controls.Add(this.displayLimitLabel);
			this.Controls.Add(this.numberOfMatchingFiles);
			this.Controls.Add(this.cancelButton);
			this.Controls.Add(this.matchingFiles);
			this.Controls.Add(this.matchingFilesLabel);
			this.Controls.Add(this.openButton);
			this.Controls.Add(this.searchTokensLabel);
			this.Controls.Add(this.searchTokens);
			this.Name = "ChooseFile";
			this.Text = "SolutionOpen";
			this.ResumeLayout(false);
			this.PerformLayout();

		}

		#endregion

		#region Member Variables

		private MyTextBox searchTokens;
		private System.Windows.Forms.Label searchTokensLabel;
		private System.Windows.Forms.Button openButton;
		private System.Windows.Forms.Button cancelButton;
		private System.Windows.Forms.Label matchingFilesLabel;
		private Label displayLimitLabel;
		private TextBox numberOfMatchingFiles;
		private MyNumericTextBox displayLimit;
		private MyListView matchingFiles;
		private System.Windows.Forms.ColumnHeader FileName;
		private System.Windows.Forms.ColumnHeader Path;
		private StringDictionary pathNames;
		private DTE2 applicationObject;

		private readonly static String registryKeyName = "Software\\JeffGrills\\SolutionOpen";
		private readonly static String lastSearchRegistryValueName = "LastSearch";
		private readonly static String displayLimitRegistryValueName = "DisplayLimit";
		#endregion

	}
}