pjs/js/jsdj/classes/com/netscape/jsdebugging/ifcui/SourceViewManager.java

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9.2 KiB
Java
Исходник Обычный вид История

/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
/*
* 'Model' to manage all the source views
*/
// when who what
// 06/27/97 jband added this header to my code
//
package com.netscape.jsdebugging.ifcui;
import java.util.Observable;
import java.util.Observer;
import netscape.application.*;
import netscape.util.*;
import com.netscape.jsdebugging.ifcui.palomar.util.*;
import com.netscape.jsdebugging.api.*;
public class SourceViewManager
implements Observer, Target, WindowOwner, PrefsSupport
{
public SourceViewManager(Emperor emperor)
{
super();
_emperor = emperor;
_controlTyrant = emperor.getControlTyrant();
_sourceTyrant = emperor.getSourceTyrant();
_stackTyrant = emperor.getStackTyrant();
if(AS.S)ER.T(null!=_controlTyrant,"emperor init order problem", this);
if(AS.S)ER.T(null!=_sourceTyrant,"emperor init order problem", this);
if(AS.S)ER.T(null!=_stackTyrant,"emperor init order problem", this);
_sourceViews = new Hashtable();
_preferedNewViewRect = new Rect(0,0,100,100);
_controlTyrant.addObserver(this);
_stackTyrant.addObserver(this);
_updateMarksTimer = new Timer(this, null, 1000 ); // 1 second wait
_updateMarksTimer.setCommand(UPDATE_MARKS);
_updateMarksTimer.setRepeats(false);
_updateMarksTimer.setCoalesce(true);
}
// implement observer interface
public void update(Observable o, Object arg)
{
// XXX perhaps this object need do nothing?
if( o == _sourceTyrant )
{
SourceTyrantUpdate update = (SourceTyrantUpdate)arg;
switch( update.type )
{
case SourceTyrantUpdate.SELECT_CHANGED :
// ignore for now
break;
case SourceTyrantUpdate.VECTOR_CHANGED :
// XXX update all views
break;
case SourceTyrantUpdate.ITEM_CHANGED :
// XXX update particular view
break;
default:
// ignore any other types
break;
}
}
else if ( o == _stackTyrant )
{
if( ControlTyrant.STOPPED == _controlTyrant.getState() )
{
JSSourceLocation loc = _stackTyrant.getCurrentLocation();
if(null == loc )
return;
SourceTextItem sti =
_sourceTyrant.findSourceItem( loc.getURL() );
if(AS.S)ER.T(null!=sti,"could not find SourceTextItem for " + loc.getURL(),this);
if(null == sti)
return;
SourceView view = findView(sti);
if( null != view )
activateView(view);
else
view = createView(sti);
view.updateMarks();
view.ensureSourceLineVisible( loc.getLine() );
}
}
else if ( o == _controlTyrant )
{
if( ControlTyrant.RUNNING == _controlTyrant.getState() )
{
// set timer to refresh marks on visible windows after a bit
_updateMarksTimer.start();
}
}
}
// implement Target interface
public void performCommand(String cmd, Object data)
{
if( cmd.equals(UPDATE_MARKS) )
{
if( _controlTyrant.getEnabled() &&
ControlTyrant.RUNNING == _controlTyrant.getState() )
{
Object[] views = _sourceViews.elementsArray();
for( int i = 0; i < views.length; i++ )
{
SourceView view = (SourceView) views[i];
if( view.isVisible() )
view.updateMarks();
}
}
}
}
public SourceView findView(String url)
{
return (SourceView)_sourceViews.get(url);
}
public SourceView findView(SourceTextItem item)
{
return findView(item.getURL());
}
private synchronized SourceView _createViewAtRect( Rect rect, SourceTextItem item )
{
if(AS.S)ER.T(null!=rect,"null rect in _createViewAtRect", this);
if( null != findView(item.getURL()) )
{
if(AS.S)ER.T( false, "tried to create second SourceView for:" + item.getURL(), this);
return null;
}
SourceView v = new SourceView( rect, _emperor, item );
_sourceViews.put(item.getURL(),v);
return v;
}
public synchronized SourceView createView( SourceTextItem item )
{
// XXX add smarter way of determining location for new source view
Rect rect = _preferedNewViewRect;
SourceView view = _createViewAtRect( rect, item );
if( null != view )
view.setOwner(this);
_setSelDataForMainSourceView(view);
return view;
}
public synchronized void activateView( SourceView view )
{
view.show();
}
public synchronized void viewBeingRemoved( SourceView view )
{
_sourceViews.remove(view.getURL());
}
public void setPreferedNewViewRect( Rect rect ){_preferedNewViewRect = rect;}
public boolean getShowLineNumbers() {return _showLineNumbers;}
public void setShowLineNumbers(boolean b)
{
if( _showLineNumbers == b )
return;
_showLineNumbers = b;
// force redraw of all visible views
Object[] views = _sourceViews.elementsArray();
if( null == views )
return;
for( int i = 0; i < views.length; i++ )
{
SourceView view = (SourceView) views[i];
if( view.isVisible() )
view.forceRefresh();
}
}
public void selectionInSourceViewChanged( SourceView sv, String s, int lineno)
{
if( _mainSourceView != sv )
return;
_setSelDataForMainSourceView(sv);
}
// implement WindowOwner interface
public boolean windowWillShow(Window aWindow) {return true;}
public void windowDidShow(Window aWindow) {}
public boolean windowWillHide(Window aWindow) {return true;}
public void windowDidHide(Window aWindow) {}
public void windowWillSizeBy(Window aWindow, Size deltaSize) {}
public void windowDidBecomeMain(Window aWindow)
{
_setSelDataForMainSourceView((SourceView) aWindow);
}
public void windowDidResignMain(Window aWindow)
{
_setSelDataForMainSourceView(null);
}
private void _setSelDataForMainSourceView(SourceView sv)
{
_mainSourceView = sv;
if( null == sv )
{
_selectedLineInMainSourceView = 0;
_selectedTextInMainSourceView = null;
_sourceTyrant.SetSelectedUrlLineText(null,0,null);
}
else
{
_selectedLineInMainSourceView = sv.getSelectedLineNumber();
_selectedTextInMainSourceView = sv.getSelectedText();
_sourceTyrant.SetSelectedUrlLineText( sv.getURL(),
_selectedLineInMainSourceView,
_selectedTextInMainSourceView );
}
}
// implement PrefsSupport interface
public void prefsWrite(Archiver archiver) throws CodingException
{
SourceViewSaver svs = new SourceViewSaver();
svs.getFromManager(this);
archiver.archiveRootObject(svs);
}
public void prefsRead(Unarchiver unarchiver) throws CodingException
{
int id = Util.RootIdentifierForClassName(unarchiver.archive(),
"com.netscape.jsdebugging.ifcui.SourceViewSaver" );
if( -1 != id )
{
SourceViewSaver svs = (SourceViewSaver)
unarchiver.unarchiveIdentifier(id);
svs.sendToManager(this);
}
}
// data...
private Emperor _emperor;
private ControlTyrant _controlTyrant;
private SourceTyrant _sourceTyrant;
private StackTyrant _stackTyrant;
private Hashtable _sourceViews;
private Rect _preferedNewViewRect;
private Timer _updateMarksTimer;
private boolean _showLineNumbers = false;
private SourceView _mainSourceView = null;
private int _selectedLineInMainSourceView = 0;
private String _selectedTextInMainSourceView = null;
private static final String UPDATE_MARKS = "UPDATE_MARKS";
}