htmldocumentadapter.java

来自「一个eclipse插件源代码。用于web开发」· Java 代码 · 共 217 行

/*
 * $Header: /home/cvs/WEBPUMP2.0/WebPumpIDE_Src/WebPumpIDE/src/com/webpump/ui/bind/listeners/HTMLDocumentAdapter.java,v 1.1.1.1 2004/07/01 09:07:42 wang_j Exp $
 * $Revision: 1.1.1.1 $
 * $Date: 2004/07/01 09:07:42 $
 *
 * ====================================================================
 *
 * The NanJing HopeRun(IT-FOREST) Software License, Version 2.0.0
 *
 * Copyright 2003-2004 by NanJing HopeRun(IT-FOREST) Information System Co., Ltd, CHINA and
 *                        IT Forest Corporation
 * All rights reserved.
 *
 * This software is the confidential and proprietary information of
 * HopeRun(IT-FOREST) Information System Co., Ltd, CHINA and IT Forest Corporation.
 * You shall not disclose such Confidential Information and shall use it only in
 * accordance with the terms of the license agreement you entered into with
 * HopeRun(IT-FOREST) Information System Co., Ltd, CHINA and IT Forest Corporation.
 */


package com.webpump.ui.bind.listeners;


import org.eclipse.jface.action.IAction;
import org.eclipse.jface.text.BadLocationException;
import org.eclipse.jface.text.DocumentEvent;
import org.eclipse.jface.text.IDocument;
import org.eclipse.jface.text.IDocumentListener;
import org.eclipse.ui.IEditorInput;
import org.eclipse.ui.texteditor.IDocumentProvider;
import org.eclipse.ui.texteditor.ITextEditor;

import com.webpump.ui.perspective.MacroResource;
import com.webpump.ui.bind.editors.BindEditor;
import com.webpump.ui.bind.editors.XMLEditor;
import com.webpump.ui.bind.action.BindHtmlBody;
import com.webpump.ui.bind.action.BindHtmlHeader;
import com.webpump.ui.bind.action.BindHtmlScript;
import com.webpump.ui.bind.action.BindHtmlStyle;
import com.webpump.ui.bind.action.BindHtmlTail;
/**
 * Class to monitor the DocumentEvent so that it can 
 * update the state of 5 necessory bind action, 
 * when the document changed in the editor .
 * 
 * @author zhang_tx
 * @version 2.0.0 2004-2-13
 */
public class HTMLDocumentAdapter implements IDocumentListener {

    /** the HTML Bind Editor */
	private BindEditor bigeditor;
	/** the action object of the Bind Html Body action */
	private IAction bodyact;
	/** the action object of the Bind Html Header action */
	private IAction headeract;
	/** the action object of the Bind Html Script action */
	private IAction scriptact;
	/** the action object of the Bind Html Style action */
	private IAction styleact;
	/** the action object of the Bind Html Tail Script action */
	private IAction tailact;

    /** the constructor of the HTMLDocumentAdapter 
     * 
     * @param BindEditor editor  the editor whose document is monitor by this Adapter
     */
	public HTMLDocumentAdapter(BindEditor editor) {
		this.bigeditor = editor;
	}
	
	/** the function which will be called when the document about to be changed 
	 * 
	 * @param DocumentEvent event   the document change event
	 */
	public void documentAboutToBeChanged(DocumentEvent event) {
	}

	/** the function which will be called when the document is changed 
	 * 
	 * @param DocumentEvent event   the document change event
	 */
	public void documentChanged(DocumentEvent event) {
		XMLEditor xmleditor = null;
		xmleditor = bigeditor.getXMLEditor();
		int f = 0;
		if (bigeditor!=null){
			/** get the action object of the Bind Html Body action */
			bodyact = BindHtmlBody.m_objaction;
			/** get the action object of the Bind Html Header action */
			headeract = BindHtmlHeader.m_objaction;
			/** get the action object of the Bind Html Script action */
			scriptact = BindHtmlScript.m_objaction;
			/** get the action object of the Bind Html Style action */
			styleact = BindHtmlStyle.m_objaction;
			/** get the action object of the Bind Html Tail Script action */
			tailact = BindHtmlTail.m_objaction;
		}
		if(xmleditor!=null){
			/** update the state of action object of the Bind Html Body action */
			doDocumentChanged(xmleditor,bodyact,"<!--WebPumpTools[DrawScene] -->","<!--End of WebPumpTools[DrawScene] -->");
			
			/** update the state of action object of the Bind Html Header action */
			doDocumentChanged(xmleditor,headeract,"<!--WebPumpTools[BodyHeader] -->","<!--End of WebPumpTools[BodyHeader] -->");
			
			/** update the state of action object of the Bind Html Script action */
			doDocumentChanged(xmleditor,scriptact,"<!--WebPumpTools[Script] -->","<!--End of WebPumpTools[Script] -->");
			
			/** update the state of action object of the Bind Html Style action */
			doDocumentChanged(xmleditor,styleact,"<!--WebPumpTools[Style] -->","<!--End of WebPumpTools[Style] -->");
			
			/** update the state of action object of the Bind Html TailScript action */
			doDocumentChanged(xmleditor,tailact,"<!--WebPumpTools[TailScript] -->","<!--End of WebPumpTools[TailScript] -->");
		}

	}
	
	/** the function to update the parameter action's state 
	 * 
	 * @param XMLEditor editor   the editor which contain the document 
	 * @param IAction action   the action whose state is to be updated
	 * @param String actionheader   the headtarget of the bind tag
	 * @param String actiontail    the tailtarget of the bind tag 
	 */
	public void doDocumentChanged(XMLEditor editor,IAction action,String actionheader,String actiontail){
		/** to get the document of the editor */
		IDocumentProvider provider= ((ITextEditor) editor).getDocumentProvider();
		IEditorInput input = editor.getEditorInput();
		IDocument document = provider.getDocument(input);
		/** to search for the headtarget in the document 
		 *  if finded, then search for the tailtarget 
		 *  if not, then activate the action 
		 */
		int tag = -1;
		try {
			tag = document.search(0,actionheader,true,false,false);
			int t = 0;
		} catch (BadLocationException e) {
			e.printStackTrace();
		}
		if(tag != -1){
			/** to search for the tailtarget of in the tailtarget 
			 *  if finded, then set the action cannot be trigered
			 *  if not, then activate the action 
			 */
			int tag1 = 0;
			try
			{
				tag1 = document.search(0,actiontail,true,false,false);
				int t = 0;
			}
			catch (BadLocationException e1)
			{
				e1.printStackTrace();
			}
			if(tag1 != -1){
				/** set the action cannot be trigered*/
				action.setEnabled(false);
			}else{
				/** activate the action */
				action.setEnabled(true);
			}
		}else{
			/** activate the action */
			action.setEnabled(true);
		}
	}
	public void BindTagSearch(DocumentEvent event) throws BadLocationException{
		IDocument document = event.getDocument();
		String ChangedText = document.get();
		int offset = event.getOffset();
		int starttag = 0;
		String type = "";
		boolean tagdestory = false;
		boolean endTag = false;
		for(int i = offset;i>=0;i--){
			if(ChangedText.substring(i-4,i).equals("]-->")){
				int t = 0;
				while(!ChangedText.substring(i-4-t-1,i-4-t).equals("[")){
				    t++;
				}
				type = ChangedText.substring(i-4-t,i-4);
				int z = 0;
				while(!ChangedText.substring(i-4-z-4,i-4-z).equals("<!--")){
					z++;
				}
				if(type.equals("ERRORS")){
					
				}
				if(type.equals("LOOP")){
					
				}
				if(type.equals("CUSTOMER")){
					
				}
				if(type.equals("DrawScene")){
					int searchforTag = document.search(0,MacroResource.BINDEDITOR_ACTION_BODYHEAD,true,false,false);
					searchforTag += document.search(0,MacroResource.BINDEDITOR_ACTION_BODYTAIL,true,false,false);
					if(searchforTag!= -1){
						tagdestory = true;	
					}
				}
				if(type.equals("BodyHeader")){
					int searchforTag = document.search(0,MacroResource.BINDEDITOR_ACTION_HEADERHEAD,true,false,false);
					searchforTag += document.search(0,MacroResource.BINDEDITOR_ACTION_HEADERTAIL,true,false,false);
					if(searchforTag!= -1){
						tagdestory = true;	
					}
				}
			}
		}
	}

}