PDFPatcher/App/Functions/Editor/Parts/BookmarkTitleEditHandler.cs

using System;
using System.Windows.Forms;
using BrightIdeasSoftware;

namespace PDFPatcher.Functions.Editor.Parts
{
    /// <summary>
	/// 处理书签栏书签标题在编辑过程的动作。
	/// </summary>
	sealed class BookmarkTitleEditHandler
    {
		Controller _controller;
		BookmarkEditorView _bookmarkBox;
		ViewerControl _viewerBox;

		public BookmarkTitleEditHandler(Controller controller) {
			_controller = controller;
			_bookmarkBox = controller.View.Bookmark;
			_viewerBox = controller.View.Viewer;
			_bookmarkBox.BeforeLabelEdit += BookmarkBoxBeforeLabelEdit;
			_bookmarkBox.CellClick += BookmarkBoxCellClick;
			_bookmarkBox.CellEditStarting += BookmarkBoxCellEditStarting;
		}

		void BookmarkBoxBeforeLabelEdit(object sender, LabelEditEventArgs e) {
			((TreeListView)sender).SelectedIndex = e.Item;
			ScrollToSelectedBookmarkLocation();
		}

		void BookmarkBoxCellClick(object sender, CellClickEventArgs e) {
			if (e.ColumnIndex != 0 || e.ClickCount > 1 || Control.ModifierKeys != Keys.None) {
				return;
			}
			ScrollToSelectedBookmarkLocation();
		}

		void BookmarkBoxCellEditStarting(object sender, CellEditEventArgs e) {
			if (e.Column.Index == 0) {
				ScrollToSelectedBookmarkLocation();
			}
		}

		void ScrollToSelectedBookmarkLocation() {
			_controller.ExecuteCommand(Commands.EditorViewerScrollToBookmark);
		}
	}
}