using System;
using System.ComponentModel;
using PDFPatcher.Common;

namespace PDFPatcher.Functions.Editor
{
	sealed partial class InsertBookmarkForm : DraggableForm
	{
		public event EventHandler OkClicked;

		/// <summary>
		/// 获取或设置书签标题。
		/// </summary>
		public string Title { get => _TitleBox.Text; set => _TitleBox.Text = value; }
		public string Comment { get => _CommentBox.Text; set => _CommentBox.Text = value; }
		/// <summary>
		/// 获取或设置书签的位置。
		/// </summary>
		public float TargetPosition { get => (float)_PositionBox.Value; set => _PositionBox.SetValue(value); }
		int _TargetPageNumber;
		public int TargetPageNumber {
			get => _TargetPageNumber;
			set { _TargetPageNumber = value; _PageLabel.Text = "第" + value.ToText() + "页"; }
		}
		/// <summary>
		/// 获取新书签的插入位置（当前书签后：1；子书签：2；父书签后：3；当前书签前：4）
		/// </summary>
		public int InsertMode => _AfterCurrentBox.Checked ? 1
					: _AsChildBox.Checked ? 2
					: _AfterParentBox.Checked ? 3
					: _BeforeCurrentBox.Checked ? 4
					: 0;

		[Browsable(false)]
		internal Controller Controller { get; set; }

		public InsertBookmarkForm() {
			InitializeComponent();
			this.OnFirstLoad(OnLoad);
		}
		void OnLoad() {
			VisibleChanged += (s, args) => {
				if (!Visible) {
					return;
				}
				_TitleBox.Focus();
				_TitleBox.SelectAll();
			};
			_AfterCurrentBox.DoubleClick += InsertModeBox_DoubleClick;
			_AfterParentBox.DoubleClick += InsertModeBox_DoubleClick;
			_AsChildBox.DoubleClick += InsertModeBox_DoubleClick;
			_BeforeCurrentBox.DoubleClick += InsertModeBox_DoubleClick;
			_ReplaceBookmarkBox.DoubleClick += InsertModeBox_DoubleClick;
			_OkButton.Click += (s, args) => {
				OkClicked?.Invoke(this, args);
				if (_AsChildBox.Checked || _AfterParentBox.Checked) {
					_AfterCurrentBox.Checked = true;
				}
				Hide();
			};
			_CancelButton.Click += (s, args) => Hide();
		}

		void InsertModeBox_DoubleClick(object sender, EventArgs e) {
			_OkButton.PerformClick();
		}

		protected override void OnDeactivate(EventArgs e) {
			Hide();
			base.OnDeactivate(e);
		}

	}
}