openwindowstateevaluator.cs

来自「SharpDevelop2.0.0 c#开发免费工具」· CS 代码 · 共 84 行

// <file>
//     <copyright see="prj:///doc/copyright.txt"/>
//     <license see="prj:///doc/license.txt"/>
//     <owner name="Mike Krüger" email="[e-mail]"/>
//     <version>$Revision: 1208 $</version>
// </file>

using System;

using ICSharpCode.Core;
using ICSharpCode.SharpDevelop.Gui;

namespace ICSharpCode.Core
{
	/// <summary>
	/// Tests if any open window has a specified window state.
	/// </summary>
	public class OpenWindowStateConditionEvaluator : IConditionEvaluator
	{
		WindowState windowState = WindowState.None;
		WindowState nowindowState = WindowState.None;
		
		bool IsStateOk(IWorkbenchWindow window)
		{
			if (window == null || window.ViewContent == null) {
				return false;
			}
			// use IWorkbenchWindow instead of IViewContent because maybe window info is needed in the future (for example: sub view content info.)
			bool isWindowStateOk = false;
			if (windowState != WindowState.None) {
				if ((windowState & WindowState.Dirty) > 0) {
					isWindowStateOk |= window.ViewContent.IsDirty;
				} 
				if ((windowState & WindowState.Untitled) > 0) {
					isWindowStateOk |= window.ViewContent.IsUntitled;
				}
				if ((windowState & WindowState.ViewOnly) > 0) {
					isWindowStateOk |= window.ViewContent.IsViewOnly;
				}
			} else {
				isWindowStateOk = true;
			}
			
			if (nowindowState != WindowState.None) {
				if ((nowindowState & WindowState.Dirty) > 0) {
					isWindowStateOk &= !window.ViewContent.IsDirty;
				}
				
				if ((nowindowState & WindowState.Untitled) > 0) {
					isWindowStateOk &= !window.ViewContent.IsUntitled;
				}
				
				if ((nowindowState & WindowState.ViewOnly) > 0) {
					isWindowStateOk &= !window.ViewContent.IsViewOnly;
				}
			}
			return isWindowStateOk;
		}
		
		public bool IsValid(object caller, Condition condition)
		{
			if (WorkbenchSingleton.Workbench == null) {
				return false;
			}
			if (WorkbenchSingleton.Workbench.ActiveWorkbenchWindow == null || WorkbenchSingleton.Workbench.ActiveWorkbenchWindow.ViewContent == null) {
				return false;
			}
			
			windowState   = condition.Properties.Get("openwindowstate", WindowState.None);
			nowindowState = condition.Properties.Get("noopenwindowstate", WindowState.None);
		
			
			foreach (IViewContent view in WorkbenchSingleton.Workbench.ViewContentCollection) {
				if (IsStateOk(view.WorkbenchWindow)) {
					return true;
				}
			}
			
			return false;
			
		}
	}
}