[Tapestry-commits] CVS: Tapestry/contrib/src/net/sf/tapestry/contrib/inspector Engine_NRp2.gif,NONE,

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Update of /cvsroot/tapestry/Tapestry/contrib/src/net/sf/tapestry/contrib/inspector
In directory sc8-pr-cvs1:/tmp/cvs-serv14897/contrib/src/net/sf/tapestry/contrib/inspector

Added Files:
      Tag: hship-2-3
	Engine_NRp2.gif Inspector.java Restart_Np1.gif 
	Specification_NBanner.gif package.html Properties_HRp4.gif 
	Template_NBanner.gif Specification_Np1.gif Selector.jwc 
	Inspector.page Specification_Hp3.gif ShowTemplate.html 
	Template_Np1.gif inspector-rollover.gif Template_Hp3.gif 
	ShowEngine.html ShowTemplate.java Specification_NRp2.gif 
	ShowSpecification.html ShowEngine.java Restart_NRp2.gif 
	Inspector.css ViewTabs.jwc ShowSpecification.java 
	ShowDescription.jwc tapestry-logo.gif Template_NRp2.gif 
	Engine_HRp4.gif InspectorValidationDelegate.java 
	ShowDescription.html ViewTabs.html Reset_Np1.gif 
	Engine_NBanner.gif Reset_Np1_disabled.gif InspectorButton.html 
	ViewTabs.java Properties_NRp2.gif Engine_Np1.gif 
	InspectorButton.java ShowEngine.jwc info.gif 
	Properties_NBanner.gif Engine_Hp3.gif Specification_HRp4.gif 
	ShowTemplate.jwc Selector.html Properties_Np1.gif 
	ShowProperties.jwc Properties_Hp3.gif InspectorButton.jwc 
	Selector.java InspectorButton.script ShowSpecification.jwc 
	Reset_NRp2.gif View.java ShowProperties.html Template_HRp4.gif 
	Inspector.library Inspector.html ShowProperties.java 
Log Message:
Move the Inspector into the contrib library.

--- NEW FILE: Engine_NRp2.gif ---
GIF89ax
--- NEW FILE: Inspector.java ---
package net.sf.tapestry.contrib.inspector;

import java.util.HashMap;
import java.util.Map;

import net.sf.tapestry.IComponent;
import net.sf.tapestry.IPage;
import net.sf.tapestry.IPageLoader;
import net.sf.tapestry.IRequestCycle;
import net.sf.tapestry.PageLoaderException;
import net.sf.tapestry.components.Block;
import net.sf.tapestry.html.BasePage;
import net.sf.tapestry.spec.ComponentSpecification;

/**
 *  The Tapestry Inspector page.
 *
 *  @author Howard Lewis Ship
 *  @version $Id: Inspector.java,v 1.1.2.1 2002/11/30 03:31:37 hship Exp $
 **/

public class Inspector extends BasePage
{
    private View _view = View.SPECIFICATION;
    private String _inspectedPageName;
    private String _inspectedIdPath;

    private static final int MAP_SIZE = 7;

    private Map _blocks;

    public void detach()
    {
        _view = View.SPECIFICATION;
        _inspectedPageName = null;
        _inspectedIdPath = null;

        super.detach();
    }

    public void finishLoad()
    {
        _blocks = new HashMap(MAP_SIZE);

        _blocks.put(View.TEMPLATE, getComponent("templateBlock"));
        _blocks.put(View.SPECIFICATION, getComponent("specificationBlock"));
        _blocks.put(View.ENGINE, getComponent("engineBlock"));
        _blocks.put(View.PROPERTIES, getComponent("propertiesBlock"));
    }

    public View getView()
    {
        return _view;
    }

    public void setView(View value)
    {
        _view = value;

        fireObservedChange("view", value);
    }

    public String getInspectedPageName()
    {
        return _inspectedPageName;
    }

    public void setInspectedPageName(String value)
    {
        _inspectedPageName = value;

        fireObservedChange("inspectedPageName", value);
    }

    public String getInspectedIdPath()
    {
        return _inspectedIdPath;
    }

    public void setInspectedIdPath(String value)
    {
        _inspectedIdPath = value;

        fireObservedChange("inspectedIdPath", value);
    }

    /** 
     *  Invoked to change the component being inspected within the current
     *  page.
     *
     *  @since 1.0.6
     **/

    public void selectComponent(String idPath)
    {
        setInspectedIdPath(idPath);
    }

    /**
     *  Method invoked by the {@link InspectorButton} component, 
     *  to begin inspecting a page.
     *
     **/

    public void inspect(String pageName, IRequestCycle cycle)
    {
        setInspectedPageName(pageName);
        selectComponent((String) null);

        cycle.setPage(this);
    }

    /**
     *  Listener for the component selection, which allows a particular component.  
     *  
     *  <p>The context is a single string,
     *  the id path of the component to be selected (or null to inspect
     *  the page itself).  This invokes
     *  {@link #selectComponent(String)}.
     *
     **/

    public void selectComponent(IRequestCycle cycle)
    {
        Object[] parameters = cycle.getServiceParameters();

        String newIdPath;

        // The up button may generate a null context.

        if (parameters == null)
            newIdPath = null;
        else
            newIdPath = (String) parameters[0];

        selectComponent(newIdPath);
    }

    /**
     *  Returns the {@link IPage} currently inspected by the Inspector, as determined
     *  from the inspectedPageName property.
     *
     **/

    public IPage getInspectedPage()
    {
        return getRequestCycle().getPage(_inspectedPageName);
    }

    /**
     *  Returns the {@link IComponent} current inspected; this is determined
     *  from the inspectedPageName and inspectedIdPath properties.
     *
     **/

    public IComponent getInspectedComponent()
    {
        return getInspectedPage().getNestedComponent(_inspectedIdPath);
    }

    public String getInspectorTitle()
    {
        return "Tapestry Inspector: " + getEngine().getSpecification().getName();
    }

    /**
     *  Returns the {@link Block} for the currently selected view.
     *
     **/

    public Block getBlockForView()
    {
        return (Block) _blocks.get(_view);
    }
}
--- NEW FILE: Restart_Np1.gif ---
GIF89ax
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N¼¸q+_Î¼yÆ
--- NEW FILE: Specification_NBanner.gif ---
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--- NEW FILE: package.html ---
<!doctype html public "-//W3C//DTD HTML 4.0 Transitional//EN">
<!-- $Id: package.html,v 1.1.2.1 2002/11/30 03:31:37 hship Exp $ -->
<html>
<head>
<title>Tapestry: Web Application Framework</title>
</head>
<body>

Implementation of the Tapestry Inspector, a specialized page
used to dynamically introspect the construction of an application while
it runs. The {@link net.sf.tapestry.contrib.inspector.ShowInspector} component
creates an icon on the page that raises the Inspector in a seperate window.

@author Howard Lewis Ship <a href="mailto:hs...@us...">hs...@us...</a>

</body>
</html>

--- NEW FILE: Properties_HRp4.gif ---
GIF89ax
--- NEW FILE: Template_NBanner.gif ---
GIF89aX
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--- NEW FILE: Specification_Np1.gif ---
GIF89ax
--- NEW FILE: Selector.jwc ---
<?xml version="1.0" encoding="UTF-8"?>
<!-- $Id: Selector.jwc,v 1.1.2.1 2002/11/30 03:31:37 hship Exp $ -->
<!DOCTYPE component-specification PUBLIC 
	"-//Howard Lewis Ship//Tapestry Specification 1.3//EN" 
	"http://tapestry.sf.net/dtd/Tapestry_1_3.dtd">

<component-specification class="net.sf.tapestry.contrib.inspector.Selector">

  <component id="form" type="Form">
    <binding name="listener" expression="listeners.formSubmit"/>
  </component>

  <component id="selectPage" type="PropertySelection">
    <binding name="value" expression="page.inspectedPageName"/>
    <binding name="model" expression="pageModel"/>
    <binding name="submitOnChange" expression="true"/>
  </component>

  <component id="page" type="DirectLink">
    <binding name="listener" expression="page.listeners.selectComponent"/>
  </component>

  <component id="e" type="Foreach">
    <binding name="source" expression="crumbTrail"/>
  </component>

  <component id="component" type="DirectLink">
    <binding name="parameters" expression="components.e.value.idPath"/>
    <binding name="listener" expression="page.listeners.selectComponent"/>
  </component>

  <component id="insertId" type="Insert">
    <binding name="value" expression="components.e.value.id"/>
  </component>

  <component id="renderBody" type="RenderBody"/>

</component-specification>

--- NEW FILE: Inspector.page ---
<?xml version="1.0" encoding="UTF-8"?>
<!-- $Id: Inspector.page,v 1.1.2.1 2002/11/30 03:31:37 hship Exp $ -->
<!DOCTYPE page-specification PUBLIC 
	"-//Howard Lewis Ship//Tapestry Specification 1.3//EN" 
	"http://tapestry.sf.net/dtd/Tapestry_1_3.dtd">

<page-specification class="net.sf.tapestry.contrib.inspector.Inspector">

  <component id="shell" type="Shell">
    <binding name="title" expression="inspectorTitle"/>
    <binding name="stylesheet" expression="assets.stylesheet"/>
  </component>

  <component id="body" type="Body"/>

  <component id="selector" type="inspector:Selector"/>

  <component id="viewTabs" type="inspector:ViewTabs"/>

  <component id="renderBlockForView" type="RenderBlock">
    <binding name="block" expression="blockForView"/>
  </component>

  <component id="specificationBlock" type="Block"/>

  <component id="showSpecification" type="inspector:ShowSpecification"/>

  <component id="templateBlock" type="Block"/>

  <component id="showTemplate" type="inspector:ShowTemplate"/>

  <component id="propertiesBlock" type="Block"/>

  <component id="showProperties" type="inspector:ShowProperties"/>

  <component id="engineBlock" type="Block"/>

  <component id="showEngine" type="inspector:ShowEngine"/>

  <private-asset name="stylesheet" resource-path="/net/sf/tapestry/contrib/inspector/Inspector.css"/>

</page-specification>

--- NEW FILE: Specification_Hp3.gif ---
GIF89ax
--- NEW FILE: ShowTemplate.html ---
<!-- $Id: ShowTemplate.html,v 1.1.2.1 2002/11/30 03:31:37 hship Exp $ -->

Component does not have a template.

<span jwcid="ifTemplate">
<table class="template">
	<tr>
		<td><span jwcid="insertTemplate"/></td>
	</tr>
</table>

</span>

--- NEW FILE: Template_Np1.gif ---
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--- NEW FILE: inspector-rollover.gif ---
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--- NEW FILE: Template_Hp3.gif ---
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--- NEW FILE: ShowEngine.html ---
<!-- $Id: ShowEngine.html,v 1.1.2.1 2002/11/30 03:31:37 hship Exp $ -->

<table class="inspector-data">

	<tr class="heading">
		<th colspan=2>Engine/Application Properties</th>
	</tr>

	<tr class="heading">
		<th>Name</th> <th>Property</th>
	</tr>

	<tr class="even">
		<th>Tapestry Framework Version</th>
		<td><span jwcid="insertFrameworkVersion"/></td>
	</tr>

	<tr class="odd">
		<th>Application Name</th>
		<td><span jwcid="insertApplicationName"/></td>
	</tr>

	<tr class="even">
		<th>Context Path</th>
		<td><span jwcid="insertContextPath"/></td>
	</tr>

	<tr class="odd">
		<th>Servlet Path</th>
		<td><span jwcid="insertServletPath"/></td>
	</tr>

	<tr class="even">
		<th>Engine Class</th>
		<td><span jwcid="insertEngineClass"/></td>
	</tr>

	<tr class="odd">
		<th>Locale</th>
		<td><span jwcid="insertLocale"/></td>
	</tr>

	<tr class="even">
		<th>Visit</th>
		<td>
<span jwcid="ifNoVisit">
<em>none</em>
</span>

<span jwcid="ifVisit">
<span jwcid="insertVisit"/>
</span>
		</td>
	</tr>

</table>

<h1>Operations</h1>

<table class="inspector-data">

	<tr class="even">
		<td><a jwcid="restart" target="_new"><img jwcid="restartButton"/></a>
		</td>
		<td>Restart the application (in a new window).
		</td>
	</tr>

	<tr class="even">
		<td><a jwcid="reset"><img jwcid="resetButton"/></a>
		</td>
		<td>
		Reset the application, discarding all cached specifications, assets
		and templates.
		</td>
	</tr>
</table>

<h1>Serialized Engine</h1>

The serialized state of the application engine (the size of this is relevant
for application servers which support clustering).

<p><span jwcid="insertByteCount"/> bytes:
<pre><span jwcid="insertSerializedEngine"/></pre>

<h1>Request Context</h1>

<span jwcid="insertRequest"/>

--- NEW FILE: ShowTemplate.java ---
package net.sf.tapestry.contrib.inspector;

import java.util.Iterator;
import java.util.Map;

import net.sf.tapestry.BaseComponent;
import net.sf.tapestry.Gesture;
import net.sf.tapestry.IComponent;
import net.sf.tapestry.IDirect;
import net.sf.tapestry.IEngineService;
import net.sf.tapestry.IMarkupWriter;
import net.sf.tapestry.IRender;
import net.sf.tapestry.IRequestCycle;
import net.sf.tapestry.ITemplateSource;
import net.sf.tapestry.RequestCycleException;
import net.sf.tapestry.parse.CloseToken;
import net.sf.tapestry.parse.ComponentTemplate;
import net.sf.tapestry.parse.LocalizationToken;
import net.sf.tapestry.parse.OpenToken;
import net.sf.tapestry.parse.TemplateToken;
import net.sf.tapestry.parse.TextToken;
import net.sf.tapestry.parse.TokenType;

/**
 *  Component of the {@link Inspector} page used to display
 *  the ids and types of all embedded components.
 *
 *
 *  @version $Id: ShowTemplate.java,v 1.1.2.1 2002/11/30 03:31:37 hship Exp $
 *  @author Howard Lewis Ship
 *
 **/

public class ShowTemplate extends BaseComponent implements IDirect
{

    public boolean getHasTemplate()
    {
        Inspector inspector;

        inspector = (Inspector) getPage();

        // Components that inherit from BaseComponent have templates,
        // others do not.

        return inspector.getInspectedComponent() instanceof BaseComponent;
    }

    public IRender getTemplateDelegate()
    {
        return new IRender()
        {
            public void render(IMarkupWriter writer, IRequestCycle cycle) throws RequestCycleException
            {
                writeTemplate(writer, cycle);
            }
        };
    }

    /**
     *  Writes the HTML template for the component.  When &lt;jwc&gt; tags are
     *  written, the id is made a link (that selects the named component).  We
     *  use some magic to accomplish this, creating links as if we were a
     *  {@link DirectLink} component, and attributing those links
     *  to the captive {@link DirectLink} component embedded here.
     *
     **/

    private void writeTemplate(IMarkupWriter writer, IRequestCycle cycle)
    {
        IComponent inspectedComponent = getInspectedComponent();
        ComponentTemplate template = null;
        ITemplateSource source = getPage().getEngine().getTemplateSource();

        try
        {
            template = source.getTemplate(cycle, inspectedComponent);
        }
        catch (Exception ex)
        {
            return;
        }

        writer.begin("pre");

        int count = template.getTokenCount();

        for (int i = 0; i < count; i++)
        {
            TemplateToken token = template.getToken(i);
            TokenType type = token.getType();

            if (type == TokenType.TEXT)
            {
                write(writer, (TextToken) token);
                continue;
            }

            if (type == TokenType.CLOSE)
            {
                write(writer, (CloseToken) token);

                continue;
            }

            if (token.getType() == TokenType.LOCALIZATION)
            {

                write(writer, (LocalizationToken) token);
                continue;
            }

            if (token.getType() == TokenType.OPEN)
            {
                boolean nextIsClose = (i + 1 < count) && (template.getToken(i + 1).getType() == TokenType.CLOSE);

                write(writer, nextIsClose, (OpenToken) token);

                if (nextIsClose)
                    i++;

                continue;
            }

            // That's all the types known at this time.
        }

        writer.end(); // <pre>        
    }

    /** @since NEXT_RELEASE **/

    private IComponent getInspectedComponent()
    {
        Inspector page = (Inspector)getPage();

        return page.getInspectedComponent();
    }

    /** @since NEXT_RELEASE **/

    private void write(IMarkupWriter writer, TextToken token)
    {
        int start = token.getStartIndex();
        int end = token.getEndIndex();

        // Print the section of the template ... print() will
        // escape and invalid characters as HTML entities.  Also,
        // we show the full stretch of text, not the trimmed version.

        writer.print(token.getTemplateData(), start, end - start + 1);
    }

    /** @since NEXT_RELEASE **/

    private void write(IMarkupWriter writer, CloseToken token)
    {
        writer.begin("span");
        writer.attribute("class", "jwc-tag");

        writer.print("</");
        writer.print(token.getTag());
        writer.print(">");

        writer.end(); // <span>
    }

    /** @since NEXT_RELEASE **/

    private void write(IMarkupWriter writer, LocalizationToken token)
    {
        IComponent component = getInspectedComponent();

        writer.begin("span");
        writer.attribute("class", "jwc-tag");

        writer.print("<span key=\"");
        writer.print(token.getKey());
        writer.print('"');

        Map attributes = token.getAttributes();
        if (attributes != null && !attributes.isEmpty())
        {
            Iterator it = attributes.entrySet().iterator();
            while (it.hasNext())
            {
                Map.Entry entry = (Map.Entry) it.next();
                String attributeName = (String) entry.getKey();
                String attributeValue = (String) entry.getValue();

                writer.print(' ');
                writer.print(attributeName);
                writer.print("=\"");
                writer.print(attributeValue);
                writer.print('"');

            }
        }

        writer.print('>');
        writer.begin("span");
        writer.attribute("class", "localized-string");

        writer.print(component.getString(token.getKey()));
        writer.end(); // <span>

        writer.print("</span>");

        writer.end(); // <span>
    }

    /** @since NEXT_RELEASE **/

    private void write(IMarkupWriter writer, boolean nextIsClose, OpenToken token)
    {
        IComponent component = getInspectedComponent();
        IEngineService service = getPage().getEngine().getService(IEngineService.DIRECT_SERVICE);
        String[] context = new String[1];

        // Each id references a component embedded in the inspected component.
        // Get that component.

        String id = token.getId();
        IComponent embedded = component.getComponent(id);
        context[0] = embedded.getIdPath();

        // Build a URL to select that component, as if by the captive
        // component itself (it's a Direct).

        Gesture g = service.buildGesture(getPage().getRequestCycle(), this, context);

        writer.begin("span");
        writer.attribute("class", "jwc-tag");

        writer.print("<");
        writer.print(token.getTag());

        writer.print(" jwcid=\"");

        writer.begin("span");
        writer.attribute("class", "jwc-id");

        writer.begin("a");
        writer.attribute("href", g.getURL());
        writer.print(id);

        writer.end(); // <a>
        writer.end(); // <span>
        writer.print('"');

        Map staticValues = token.getStaticValuesMap();

        if (staticValues != null)
        {
            Iterator ii = staticValues.entrySet().iterator();

            while (ii.hasNext())
            {
                Map.Entry e = (Map.Entry) ii.next();
                writer.print(' ');
                writer.print(e.getKey().toString());
                writer.print("=\"");
                writer.print(e.getValue().toString());
                writer.print('"');
            }
        }

        // Collapse an open & close down to a single tag.

        if (nextIsClose)
            writer.print('/');

        writer.print('>');
        writer.end(); // <span>
    }

    /**
     *  Invoked when a component id is clicked.
     *
     **/

    public void trigger(IRequestCycle cycle)
    {
        Inspector inspector = (Inspector) getPage();

        Object[] parameters = cycle.getServiceParameters();

        inspector.selectComponent((String) parameters[0]);

        IComponent newComponent = inspector.getInspectedComponent();

        // If the component is not a BaseComponent then it won't have
        // a template, so switch to the specification view.

        if (!(newComponent instanceof BaseComponent))
            inspector.setView(View.SPECIFICATION);
    }

    /**
     *  Always returns true.
     * 
     *  @since 2.3
     * 
     **/

    public boolean isStateful()
    {
        return true;
    }
}
--- NEW FILE: Specification_NRp2.gif ---
GIF89ax
--- NEW FILE: ShowSpecification.html ---
<!-- $Id: ShowSpecification.html,v 1.1.2.1 2002/11/30 03:31:37 hship Exp $ -->

<table>
<tr valign=top>
<td>

<table class="inspector-data" width="100%">
	<tr class="even">
		<th>Specification Resource Path</th>
		<td><span jwcid="insertSpecificationPath"/>
		<span jwcid="showComponentDescription"/>
		</td>
	</tr>

	<tr class="odd">
		<th>Java class</th>
		<td><span jwcid="insertJavaClass"/></td>
	</tr>

<span jwcid="ifNotPage">

	<tr class="even">
		<th>Allow informal parameters</th>
		<td><span jwcid="insertAllowInformal"/></td>
	</tr>

	<tr class="odd">
		<th>Allow body</th>
		<td><span jwcid="insertAllowBody"/></td>
	</tr>

</span>

</table>

<span jwcid="ifFormalParameters">

<table class="inspector-data" width="100%">
	<tr class="heading">
		<th colspan=4>Formal Parameters</th>
	</tr>
	<tr class="heading">
		<th>Name</th> <th>Required</th> <th>Java type</th> <th>Binding</th>
	</tr>

	<tr jwcid="e_formal">
		<td><span jwcid="insertFormalName"/>
		<span jwcid="showParameterDescription"/>
		</td>
		<td><span jwcid="insertFormalRequired"/></td>
		<td><span jwcid="insertFormalType"/></td>
		<td><span jwcid="insertFormalBinding"/></td>
	</tr>

</table>
</span>

<span jwcid="ifInformalParameters">

<table class="inspector-data" width="100%">
	<tr class="heading">
		<th colspan=2>Informal Parameters</th>
	</tr>
	<tr class="heading">
		<th>Name</th> <th>Binding</th>
	</tr>

	<tr jwcid="e_informal">
		<td><span jwcid="insertInformalName"/></td>
		<td><span jwcid="insertInformalBinding"/></td>
	</tr>

</table>
</span>

<span jwcid="ifAssets">

<table class="inspector-data"  width="100%">
	<tr class="heading">
		<th colspan=2>Assets</th>
	</tr>
	<tr class="heading">
		<th>Name</th> <th>Asset</th>
	</tr>

	<tr jwcid="e_asset">
		<td><span jwcid="insertAssetName"/></td>
		<td><span jwcid="insertAssetValue"/></td>
	</tr>

</table>
</span>

<span jwcid="ifProperties">

<table class="inspector-data" width="100%">
	<tr class="heading">
		<th colspan=2>Properties</th>
	</tr>
	<tr class="heading">
		<th>Name</th> <th>Property</th>
	</tr>

	<tr jwcid="e_property">
		<th><span jwcid="insertPropertyName"/></th>
		<td><span jwcid="insertPropertyValue"/></td>
	</tr>

</table>
</span>

<span jwcid="ifBeans">

<table class="inspector-data" width="100%">
	<tr class="heading">
		<th colspan=3>Helper Beans</th>
	</tr>

	<tr class="heading">
		<th>Name</th> <th>Class</th> <th>Lifecycle</th>
	</tr>

	<tr jwcid="e_bean">
		<td><span jwcid="insertBeanName"/></td>
		<td><span jwcid="insertBeanClass"/></td>
		<td><span jwcid="insertBeanLifecycle"/></td>
	</tr>

</table>
</span>

</td>

<td>
<span jwcid="ifComponents">

<table border="0" class="inspector-data">

	<tr class="heading">
		<th colspan=2>Embedded Components</th>
	</tr>
	<tr class="heading">
		<th>Id</th> <th>Type</th>
	</tr>

	<tr jwcid="e_components">
		<td>
			<a jwcid="selectComponent"><span jwcid="insertComponentId"/></a>
		</td>
		<td>
			<span jwcid="insertComponentType"/>
		</td>
	</tr>

</table>
</span>

</td>
</tr>
</table>

--- NEW FILE: ShowEngine.java ---
package net.sf.tapestry.contrib.inspector;

import java.io.ByteArrayOutputStream;
import java.io.CharArrayWriter;
import java.io.IOException;
import java.io.ObjectOutputStream;
import java.io.OutputStream;

import net.sf.tapestry.ApplicationRuntimeException;
import net.sf.tapestry.BaseComponent;
import net.sf.tapestry.IEngine;
import net.sf.tapestry.IMarkupWriter;
import net.sf.tapestry.IRender;
import net.sf.tapestry.IRequestCycle;
import net.sf.tapestry.RequestCycleException;
import net.sf.tapestry.Tapestry;
import net.sf.tapestry.event.PageDetachListener;
import net.sf.tapestry.event.PageEvent;
import net.sf.tapestry.util.io.BinaryDumpOutputStream;

/**
 *  Component of the {@link Inspector} page used to display
 *  the properties of the {@link IEngine} as well as a serialized view of it.
 *  Also, the {@link net.sf.tapestry.RequestContext} is dumped out.
 *
 *
 *  @version $Id: ShowEngine.java,v 1.1.2.1 2002/11/30 03:31:37 hship Exp $
 *  @author Howard Lewis Ship
 *
 **/

public class ShowEngine extends BaseComponent implements PageDetachListener
{
    private byte[] serializedEngine;

    /**
     *  Registers with the page as a {@link PageDetachListener}.
     *
     *  @since 1.0.5
     *
     **/

    protected void finishLoad()
    {
        getPage().addPageDetachListener(this);
    }

    public void pageDetached(PageEvent event)
    {
        serializedEngine = null;
    }

    /**
     *  Workaround for OGNL limitation --- OGNL can't dereference
     *  past class instances.
     * 
     *  @since 2.2
     * 
     **/

    public String getEngineClassName()
    {
        return getPage().getEngine().getClass().getName();
    }

    private byte[] getSerializedEngine()
    {
        if (serializedEngine == null)
            buildSerializedEngine();

        return serializedEngine;
    }

    private void buildSerializedEngine()
    {
        ByteArrayOutputStream bos = null;
        ObjectOutputStream oos = null;

        try
        {
            bos = new ByteArrayOutputStream();
            oos = new ObjectOutputStream(bos);

            // Write the application object to the stream.

            oos.writeObject(getPage().getEngine());

            // Extract the application as an array of bytes.

            serializedEngine = bos.toByteArray();
        }
        catch (IOException ex)
        {
            throw new ApplicationRuntimeException(
                Tapestry.getString("ShowEngine.could-not-serialize"),
                ex);
        }
        finally
        {
            close(oos);
            close(bos);
        }

        // It would be nice to deserialize the application object now, but in
        // practice, that fails due to class loader problems.
    }

    private void close(OutputStream stream)
    {
        if (stream == null)
            return;

        try
        {
            stream.close();
        }
        catch (IOException ex)
        {
            // Ignore.
        }
    }

    public int getEngineByteCount()
    {
        return getSerializedEngine().length;
    }

    public IRender getEngineDumpDelegate()
    {
        return new IRender()
        {
            public void render(IMarkupWriter writer, IRequestCycle cycle)
                throws RequestCycleException
            {
                dumpSerializedEngine(writer);
            }
        };
    }

    private void dumpSerializedEngine(IMarkupWriter responseWriter)
    {
        CharArrayWriter writer = null;
        BinaryDumpOutputStream bos = null;

        try
        {
            // Because IReponseWriter doesn't implement the
            // java.io.Writer interface, we have to buffer this
            // stuff then pack it in all at once.  Kind of a waste!

            writer = new CharArrayWriter();

            bos = new BinaryDumpOutputStream(writer);
            bos.setBytesPerLine(32);

            bos.write(getSerializedEngine());
            bos.close();

            responseWriter.print(writer.toString());
        }
        catch (IOException ex)
        {
            // Ignore.
        }
        finally
        {
            if (bos != null)
            {
                try
                {
                    bos.close();
                }
                catch (IOException ex)
                {
                    // Ignore.
                }
            }

            if (writer != null)
            {
                writer.reset();
                writer.close();
            }
        }
    }

}
--- NEW FILE: Restart_NRp2.gif ---
GIF89ax
--- NEW FILE: Inspector.css ---
H1  {
	font-size: 12pt;
	font-weight: bold;

}

H2  {}

H3  {}

A  {
	color:#ffffff;
}

A:Visited  {}

A:Active  {}

A:Hover  {}

SPAN.error
{
		color: Red;
		font-weight: bold;
	background-color : "#330066"		
}

BODY  {
	font-family: "Trebuchet MS", sans-serif;
	 background-color: #839cd1;
}

TABLE.inspector-data TR.odd TD  {
	text-align : left;
	color : Black;
	background-color : Silver;
}

TABLE.inspector-data TR.even TH
{
	text-align : right;
	font-weight: bold;
}

TABLE.inspector-data TR.odd TH
{
	text-align: right;
	color : Black;
	background-color : Silver;
	font-weight: bold;
}

TABLE.inspector-data TR.even TD  {
	text-align : left;
}

TABLE.inspector-data,
TABLE.selector
{
	font-size: 9pt;
}

TABLE.selector TD.page-link
{
	font-style: italic;
}

TABLE.selector TD
{
	verticle-align: center;
}

TABLE.inspector-data TR.heading TH,
TABLE.template TH
{
	text-align: center;
	color : White;
	background-color : "#330066";
	font-weight: bold;
}

TABLE.template TD
{
	background-color: Silver;
	font-size: small;
}

SPAN.message
{
	color : Silver
	font-size: large;
}

SPAN.jwc-tag
{
	font-weight: bold;
}

SPAN.jwc-id, SPAN.localized-string
{
	font-style: italic;
}

TABLE.request-context-border  {
	border-width : 1;
	border-color : Black;
	font-size: 9pt;
}

SPAN.request-context-object  {
	font-weight : bold;
	text-align : left;
	font-size: 12pt;
}

TR.request-context-section TH  {
	text-align : center;
	color : White;
	background-color : Blue;
}

TR.request-context-header TH  {
	text-align : center;
	color : White;
	background-color : Blue;
}

TABLE.request-context-object TR.odd TD  {
	text-align : left;
	color : Black;
	background-color : Silver;
}

TABLE.request-context-object TR.odd TH  {
	color : Black;
	background-color : Silver;
	text-align : right;
}

TABLE.request-context-object TR.even TD  {
	text-align : left;
}

TABLE.request-context-object TR.even TH  {
	text-align : right;
}

TABLE.request-context-object  {
	width : 100%;
	font-size: 9pt;
}

TABLE.request-context-object TR  {
	vertical-align : text-top;
}

TABLE.exception-display TR.even  {
	top : auto;
}

TABLE.exception-displaY TD
{
	width: 100%;
}

TABLE.exception-display TR.even TH  {
	text-align : right;
	font-weight : bold;
}

TABLE.exception-display TR.odd TD  {
	text-align : left;
	background-color : Silver;
}

TABLE.exception-display TR.odd TH  {
	text-align : right;
	font-weight : bold;
	background-color : Silver;	
}

TABLE.exception-display TR.even TD  {
	text-align : left;
}

TABLE.exception-display TR.stack-trace  {
	font-size : small;
	font-family : sans-serif;
	text-align : left;
}

UL 
{
	margin-top: 0px;
	margin-bottom: 0px;
	margin-left: 20px;
}
--- NEW FILE: ViewTabs.jwc ---
<?xml version="1.0" encoding="UTF-8"?>
<!-- $Id: ViewTabs.jwc,v 1.1.2.1 2002/11/30 03:31:37 hship Exp $ -->
<!DOCTYPE component-specification PUBLIC 
	"-//Howard Lewis Ship//Tapestry Specification 1.3//EN" 
	"http://tapestry.sf.net/dtd/Tapestry_1_3.dtd">

<component-specification class="net.sf.tapestry.contrib.inspector.ViewTabs">

  <component id="e" type="Foreach">
    <binding name="source" expression="views"/>
    <binding name="value" expression="view"/>
  </component>

  <component id="select" type="ActionLink">
    <binding name="listener" expression="listeners.selectTab"/>
  </component>

  <component id="tab" type="Rollover">
    <binding name="image" expression="viewImage"/>
    <binding name="focus" expression="focusImage"/>
  </component>

  <component id="banner" type="Image">
    <binding name="image" expression="bannerImage"/>
  </component>

  <component id="renderBody" type="RenderBody"/>

  <private-asset name="SPECIFICATION" resource-path="/net/sf/tapestry/contrib/inspector/Specification_Np1.gif"/>
  <private-asset name="SPECIFICATION_selected" resource-path="/net/sf/tapestry/contrib/inspector/Specification_Hp3.gif"/>
  <private-asset name="SPECIFICATION_focus" resource-path="/net/sf/tapestry/contrib/inspector/Specification_NRp2.gif"/>
  <private-asset name="SPECIFICATION_selected_focus" resource-path="/net/sf/tapestry/contrib/inspector/Specification_HRp4.gif"/>
  <private-asset name="SPECIFICATION_banner" resource-path="/net/sf/tapestry/contrib/inspector/Specification_NBanner.gif"/>
  <private-asset name="TEMPLATE" resource-path="/net/sf/tapestry/contrib/inspector/Template_Np1.gif"/>
  <private-asset name="TEMPLATE_selected" resource-path="/net/sf/tapestry/contrib/inspector/Template_Hp3.gif"/>
  <private-asset name="TEMPLATE_focus" resource-path="/net/sf/tapestry/contrib/inspector/Template_NRp2.gif"/>
  <private-asset name="TEMPLATE_selected_focus" resource-path="/net/sf/tapestry/contrib/inspector/Template_HRp4.gif"/>
  <private-asset name="TEMPLATE_banner" resource-path="/net/sf/tapestry/contrib/inspector/Template_NBanner.gif"/>
  <private-asset name="PROPERTIES" resource-path="/net/sf/tapestry/contrib/inspector/Properties_Np1.gif"/>
  <private-asset name="PROPERTIES_selected" resource-path="/net/sf/tapestry/contrib/inspector/Properties_Hp3.gif"/>
  <private-asset name="PROPERTIES_focus" resource-path="/net/sf/tapestry/contrib/inspector/Properties_NRp2.gif"/>
  <private-asset name="PROPERTIES_selected_focus" resource-path="/net/sf/tapestry/contrib/inspector/Properties_HRp4.gif"/>
  <private-asset name="PROPERTIES_banner" resource-path="/net/sf/tapestry/contrib/inspector/Properties_NBanner.gif"/>
  <private-asset name="ENGINE" resource-path="/net/sf/tapestry/contrib/inspector/Engine_Np1.gif"/>
  <private-asset name="ENGINE_selected" resource-path="/net/sf/tapestry/contrib/inspector/Engine_Hp3.gif"/>
  <private-asset name="ENGINE_focus" resource-path="/net/sf/tapestry/contrib/inspector/Engine_NRp2.gif"/>
  <private-asset name="ENGINE_selected_focus" resource-path="/net/sf/tapestry/contrib/inspector/Engine_HRp4.gif"/>
  <private-asset name="ENGINE_banner" resource-path="/net/sf/tapestry/contrib/inspector/Engine_NBanner.gif"/>
  <private-asset name="LOGGING" resource-path="/net/sf/tapestry/contrib/inspector/Logging_Np1.gif"/>
  <private-asset name="LOGGING_selected" resource-path="/net/sf/tapestry/contrib/inspector/Logging_Hp3.gif"/>
  <private-asset name="LOGGING_focus" resource-path="/net/sf/tapestry/contrib/inspector/Logging_NRp2.gif"/>
  <private-asset name="LOGGING_selected_focus" resource-path="/net/sf/tapestry/contrib/inspector/Logging_HRp4.gif"/>
  <private-asset name="LOGGING_banner" resource-path="/net/sf/tapestry/contrib/inspector/Logging_NBanner.gif"/>
</component-specification>

--- NEW FILE: ShowSpecification.java ---
package net.sf.tapestry.contrib.inspector;

import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
import java.util.Map;

import net.sf.tapestry.BaseComponent;
import net.sf.tapestry.IAsset;
import net.sf.tapestry.IBinding;
import net.sf.tapestry.IComponent;
import net.sf.tapestry.event.PageEvent;
import net.sf.tapestry.event.PageRenderListener;
import net.sf.tapestry.spec.BeanSpecification;
import net.sf.tapestry.spec.ComponentSpecification;
import net.sf.tapestry.spec.ContainedComponent;
import net.sf.tapestry.spec.ParameterSpecification;

/**
 *  Component of the {@link Inspector} page used to display
 *  the specification, parameters and bindings and assets of the inspected component.
 *
 *
 *  @version $Id: ShowSpecification.java,v 1.1.2.1 2002/11/30 03:31:37 hship Exp $
 *  @author Howard Lewis Ship
 *
 **/

public class ShowSpecification extends BaseComponent implements PageRenderListener
{
    private IComponent _inspectedComponent;
    private ComponentSpecification _inspectedSpecification;
    private String _parameterName;
    private String _assetName;
    private List _sortedComponents;
    private IComponent _component;
    private List _assetNames;
    private List _formalParameterNames;
    private List _informalParameterNames;
    private List _sortedPropertyNames;
    private String _propertyName;
    private List _beanNames;
    private String _beanName;
    private BeanSpecification _beanSpecification;

    private static class ComponentComparitor implements Comparator
    {
        public int compare(Object left, Object right)
        {
            IComponent leftComponent;
            String leftId;
            IComponent rightComponent;
            String rightId;

            if (left == right)
                return 0;

            leftComponent = (IComponent) left;
            rightComponent = (IComponent) right;

            leftId = leftComponent.getId();
            rightId = rightComponent.getId();

            return leftId.compareTo(rightId);
        }
    }

    /**
     *  Registers this component as a {@link PageRenderListener}.
     *
     * @since 1.0.5
     **/

    protected void finishLoad()
    {
        getPage().addPageRenderListener(this);
    }

    /**
     *  Clears all cached information about the component and such after
     *  each render (including the rewind phase render used to process
     *  the tab view).
     *
     *  @since 1.0.5
     *
     **/

    public void pageEndRender(PageEvent event)
    {
        _inspectedComponent = null;
        _inspectedSpecification = null;
        _parameterName = null;
        _assetName = null;
        _sortedComponents = null;
        _component = null;
        _assetNames = null;
        _formalParameterNames = null;
        _informalParameterNames = null;
        _sortedPropertyNames = null;
        _propertyName = null;
        _beanNames = null;
        _beanName = null;
        _beanSpecification = null;
    }

    /**
     *  Gets the inspected component and specification from the {@link Inspector} page.
     *
     *  @since 1.0.5
     **/

    public void pageBeginRender(PageEvent event)
    {
        Inspector inspector;

        inspector = (Inspector) getPage();

        _inspectedComponent = inspector.getInspectedComponent();
        _inspectedSpecification = _inspectedComponent.getSpecification();
    }

    public IComponent getInspectedComponent()
    {
        return _inspectedComponent;
    }

    public ComponentSpecification getInspectedSpecification()
    {
        return _inspectedSpecification;
    }

    /**
     *  Returns a sorted list of formal parameter names.
     *
     **/

    public List getFormalParameterNames()
    {
        if (_formalParameterNames != null)
            return _formalParameterNames;

        Collection names = _inspectedSpecification.getParameterNames();
        if (names != null && names.size() > 0)
        {
            _formalParameterNames = new ArrayList(names);
            Collections.sort(_formalParameterNames);
        }

        return _formalParameterNames;
    }

    /**
     *  Returns a sorted list of informal parameter names.  This is
     *  the list of all bindings, with the list of parameter names removed,
     *  sorted.
     *
     **/

    public List getInformalParameterNames()
    {
        if (_informalParameterNames != null)
            return _informalParameterNames;

        Collection names = _inspectedComponent.getBindingNames();
        if (names != null && names.size() > 0)
        {
            _informalParameterNames = new ArrayList(names);

            // Remove the names of any formal parameters.  This leaves
            // just the names of informal parameters (informal parameters
            // are any parameters/bindings that don't match a formal parameter
            // name).

            names = _inspectedSpecification.getParameterNames();
            if (names != null)
                _informalParameterNames.removeAll(names);

            Collections.sort(_informalParameterNames);
        }

        return _informalParameterNames;
    }

    public String getParameterName()
    {
        return _parameterName;
    }

    public void setParameterName(String value)
    {
        _parameterName = value;
    }

    /**
     *  Returns the {@link ParameterSpecification} corresponding to
     *  the value of the parameterName property.
     *
     **/

    public ParameterSpecification getParameterSpecification()
    {
        return _inspectedSpecification.getParameter(_parameterName);
    }

    /**
     *  Returns the {@link IBinding} corresponding to the value of
     *  the parameterName property.
     *
     **/

    public IBinding getBinding()
    {
        return _inspectedComponent.getBinding(_parameterName);
    }

    public void setAssetName(String value)
    {
        _assetName = value;
    }

    public String getAssetName()
    {
        return _assetName;
    }

    /**
     *  Returns the {@link IAsset} corresponding to the value
     *  of the assetName property.
     *
     **/

    public IAsset getAsset()
    {
        return (IAsset) _inspectedComponent.getAssets().get(_assetName);
    }

    /**
     *  Returns a sorted list of asset names, or null if the
     *  component contains no assets.
     *
     **/

    public List getAssetNames()
    {
        if (_assetNames != null)
            return _assetNames;

        Map assets = _inspectedComponent.getAssets();

        _assetNames = new ArrayList(assets.keySet());
        Collections.sort(_assetNames);

        return _assetNames;
    }

    public List getSortedComponents()
    {
        if (_sortedComponents != null)
            return _sortedComponents;

        Inspector inspector = (Inspector) getPage();
        IComponent inspectedComponent = inspector.getInspectedComponent();

        // Get a Map of the components and simply return null if there
        // are none.

        Map components = inspectedComponent.getComponents();

        _sortedComponents = new ArrayList(components.values());

        Collections.sort(_sortedComponents, new ComponentComparitor());

        return _sortedComponents;
    }

    public void setComponent(IComponent value)
    {
        _component = value;
    }

    public IComponent getComponent()
    {
        return _component;
    }

    /**
     *  Returns the type of the component, as specified in the container's
     *  specification (i.e., the component alias if known).
     *
     **/

    public String getComponentType()
    {
        String id;
        ComponentSpecification containerSpecification;
        IComponent container;
        ContainedComponent contained;

        container = _component.getContainer();

        containerSpecification = container.getSpecification();

        id = _component.getId();
        contained = containerSpecification.getComponent(id);

        return contained.getType();
    }

    /**
     *  Returns a list of the properties for the component
     *  (from its specification), or null if the component
     *  has no properties.
     *
     **/

    public List getSortedPropertyNames()
    {
        if (_sortedPropertyNames != null)
            return _sortedPropertyNames;

        Collection names = _inspectedSpecification.getPropertyNames();
        if (names != null && names.size() > 0)
        {
            _sortedPropertyNames = new ArrayList(names);
            Collections.sort(_sortedPropertyNames);
        }

        return _sortedPropertyNames;
    }

    public void setPropertyName(String value)
    {
        _propertyName = value;
    }

    public String getPropertyName()
    {
        return _propertyName;
    }

    public String getPropertyValue()
    {
        return _inspectedSpecification.getProperty(_propertyName);
    }

    public List getBeanNames()
    {
        if (_beanNames != null)
            return _beanNames;

        Collection names = _inspectedSpecification.getBeanNames();

        if (names != null && names.size() > 0)
        {
            _beanNames = new ArrayList(names);
            Collections.sort(_beanNames);
        }

        return _beanNames;
    }

    public void setBeanName(String value)
    {
        _beanName = value;
        _beanSpecification = _inspectedSpecification.getBeanSpecification(_beanName);
    }

    public String getBeanName()
    {
        return _beanName;
    }

    public BeanSpecification getBeanSpecification()
    {
        return _beanSpecification;
    }
}
--- NEW FILE: ShowDescription.jwc ---
<?xml version="1.0" encoding="UTF-8"?>
<!-- $Id: ShowDescription.jwc,v 1.1.2.1 2002/11/30 03:31:37 hship Exp $ -->

<!DOCTYPE component-specification PUBLIC 
	"-//Howard Lewis Ship//Tapestry Specification 1.3//EN" 
	"http://tapestry.sf.net/dtd/Tapestry_1_3.dtd">

<component-specification class="net.sf.tapestry.BaseComponent" 
	allow-body="no" 
	allow-informal-parameters="no">

	<parameter name="description" required="yes"/>

	<component id="ifDescription" type="Conditional">
	  <inherited-binding name="condition" parameter-name="description"/>
	</component>

	<component id="descriptionImage" type="Image">
	  <binding name="image" expression="assets.info"/>
	  <inherited-binding name="alt" parameter-name="description"/>
	</component>

	<private-asset name="info" resource-path="/net/sf/tapestry/contrib/inspector/info.gif"/>

</component-specification>

--- NEW FILE: tapestry-logo.gif ---
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--- NEW FILE: Template_NRp2.gif ---
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--- NEW FILE: Engine_HRp4.gif ---
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--- NEW FILE: InspectorValidationDelegate.java ---
package net.sf.tapestry.contrib.inspector;

import net.sf.tapestry.IMarkupWriter;
import net.sf.tapestry.IRequestCycle;
import net.sf.tapestry.RequestCycleException;
import net.sf.tapestry.valid.ValidationDelegate;

/**
 * Customized version of {@link ValidationDelegate} that changes some
 * output behavior. 
 * 
 *
 *  @author Howard Lewis Ship
 *  @version $Id: InspectorValidationDelegate.java,v 1.1.2.1 2002/11/30 03:31:37 hship Exp $
 *  @since 1.0.8
 *
 **/

public class InspectorValidationDelegate extends ValidationDelegate
{
    public void writeSuffix(IMarkupWriter writer, IRequestCycle cycle)
        throws RequestCycleException
    {
        if (isInError())
        {
            writer.printRaw("&nbsp;");
            writer.begin("span");
            writer.attribute("class", "error");
            writer.print("**");
            writer.end();
        }
    }

}
--- NEW FILE: ShowDescription.html ---
<!-- $Id: ShowDescription.html,v 1.1.2.1 2002/11/30 03:31:37 hship Exp $ -->

<span jwcid="$content$">
<span jwcid="ifDescription"><img jwcid="descriptionImage"/></span>
</span>
--- NEW FILE: ViewTabs.html ---
<!-- $Id: ViewTabs.html,v 1.1.2.1 2002/11/30 03:31:37 hship Exp $ -->

<table border=0 cellpadding=0 cellspacing=2>
	<tr>
		<td>
<span jwcid="e">
			<a jwcid="select"><img jwcid="tab" width="120" height="19"/></a>
</span>
		</td>
	</tr>
	<tr>
		<td><span jwcid="banner"/></td>
	</tr>
	<tr>
		<td><span jwcid="renderBody"/></td>
	</tr>
</table>

--- NEW FILE: Reset_Np1.gif ---
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--- NEW FILE: Engine_NBanner.gif ---
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--- NEW FILE: Reset_Np1_disabled.gif ---
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--- NEW FILE: InspectorButton.html ---
<!-- $Id: InspectorButton.html,v 1.1.2.1 2002/11/30 03:31:37 hship Exp $ -->

<span jwcid="$content$">

<div id="tapestryInspector" style="position:absolute; border-color:black; border-width:2px; border-style:solid; padding:3px; background-color:#839cd1;">
<a jwcid="link"><img jwcid="rollover"/></a>
</div>

</span>

--- NEW FILE: ViewTabs.java ---
package net.sf.tapestry.contrib.inspector;

import net.sf.tapestry.BaseComponent;
import net.sf.tapestry.IAsset;
import net.sf.tapestry.IRequestCycle;

/**
 *  Component of the {@link Inspector} page used to select the view.
 *
 *
 *  @version $Id: ViewTabs.java,v 1.1.2.1 2002/11/30 03:31:37 hship Exp $
 *  @author Howard Lewis Ship
 *
 **/

public class ViewTabs extends BaseComponent
{
    private static View[] views =
        {
            View.SPECIFICATION,
            View.TEMPLATE,
            View.PROPERTIES,
            View.ENGINE };

    private View view;

    public View[] getViews()
    {
        return views;
    }

    public void setView(View value)
    {
        view = value;
    }

    // We don't worry about cleaning this up at the end of the request cycle
    // because the value is an Enum, a singleton that would stay in memory
    // anyway.

    public View getView()
    {
        return view;
    }

    private IAsset getImageForView(boolean focus)
    {
        StringBuffer buffer;
        Inspector inspector;
        boolean selected;
        String key;

        inspector = (Inspector) getPage();

        selected = (view == inspector.getView());

        buffer = new StringBuffer(view.getName());

        if (selected)
            buffer.append("_selected");

        if (focus)
            buffer.append("_focus");

        key = buffer.toString();

        return (IAsset) getAssets().get(key);
    }

    public IAsset getViewImage()
    {
        return getImageForView(false);
    }

    public IAsset getFocusImage()
    {
        return getImageForView(true);
    }

    public IAsset getBannerImage()
    {
        Inspector inspector;
        View selectedView;
        String key;

        inspector = (Inspector) getPage();
        selectedView = inspector.getView();
        key = selectedView.getName() + "_banner";

        return (IAsset) getAssets().get(key);
    }

    public void selectTab(IRequestCycle cycle)
    {
        Inspector inspector;

        inspector = (Inspector) getPage();
        inspector.setView(view);
    }
}
--- NEW FILE: Properties_NRp2.gif ---
GIF89ax
--- NEW FILE: Engine_Np1.gif ---
GIF89ax
--- NEW FILE: InspectorButton.java ---
package net.sf.tapestry.contrib.inspector;

import java.net.URL;
import java.util.HashMap;
import java.util.Map;

import javax.servlet.http.HttpSession;
import net.sf.tapestry.BaseComponent;
import net.sf.tapestry.Gesture;
import net.sf.tapestry.IDirect;
import net.sf.tapestry.IEngine;
import net.sf.tapestry.IEngineService;
import net.sf.tapestry.IMarkupWriter;
import net.sf.tapestry.INamespace;
import net.sf.tapestry.IRequestCycle;
import net.sf.tapestry.IScript;
import net.sf.tapestry.IScriptSource;
import net.sf.tapestry.RequestCycleException;
import net.sf.tapestry.ScriptException;
import net.sf.tapestry.ScriptSession;
import net.sf.tapestry.Tapestry;
import net.sf.tapestry.html.Body;

/**
 * Component that can be placed into application pages that will launch
 * the inspector in a new window.
 * 
 * [<a href="../../../../../ComponentReference/InspectorButton.html">Component Reference</a>]
 *
 * Because the InspectorButton component is implemented using a {@link net.sf.tapestry.html.Rollover},
 * the containing page must use a {@link Body} component instead of
 * a &lt;body&gt; tag.
 *
 * @version $Id: InspectorButton.java,v 1.1.2.1 2002/11/30 03:31:37 hship Exp $
 * @author Howard Lewis Ship
 *
 **/

public class InspectorButton extends BaseComponent implements IDirect
{
    private boolean _disabled = false;

    /**
     *  Gets the listener for the link component.
     *
     *  @since 1.0.5
     **/

    public void trigger(IRequestCycle cycle) throws RequestCycleException
    {
        String name = getNamespace().constructQualifiedName("Inspector");

        Inspector inspector = (Inspector) cycle.getPage(name);

        inspector.inspect(getPage().getName(), cycle);
    }

    /**
     *  Renders the script, then invokes the normal implementation.
     *
     *  @since 1.0.5
     **/

    protected void renderComponent(IMarkupWriter writer, IRequestCycle cycle) throws RequestCycleException
    {
        if (_disabled || cycle.isRewinding())
            return;

        IEngine engine = getPage().getEngine();
        IScriptSource source = engine.getScriptSource();

        IScript script = source.getScript("/net/sf/tapestry/contrib/inspector/InspectorButton.script");

        Map symbols = new HashMap();

        IEngineService service = engine.getService(IEngineService.DIRECT_SERVICE);
        Gesture g = service.buildGesture(cycle, this, null);

        symbols.put("URL", g.getURL());

        ScriptSession scriptSession = null;

        try
        {
            scriptSession = script.execute(symbols);
        }
        catch (ScriptException ex)
        {
            throw new RequestCycleException(this, ex);
        }

        Body body = Body.get(cycle);

        if (body == null)
            throw new RequestCycleException(Tapestry.getString("InspectorButton.must-be-contained-by-body"), this);

        body.process(scriptSession);

        // Now, go render the rest from the template.

        super.renderComponent(writer, cycle);
    }

    public boolean isDisabled()
    {
        return _disabled;
    }

    public void setDisabled(boolean disabled)
    {
        _disabled = disabled;
    }

    /**
     *  Always returns false.
     * 
     *  @since 2.3
     * 
     **/

    public boolean isStateful()
    {
        return false;
    }

}
--- NEW FILE: ShowEngine.jwc ---
<?xml version="1.0" encoding="UTF-8"?>
<!-- $Id: ShowEngine.jwc,v 1.1.2.1 2002/11/30 03:31:37 hship Exp $ -->
<!DOCTYPE component-specification PUBLIC 
	"-//Howard Lewis Ship//Tapestry Specification 1.3//EN" 
	"http://tapestry.sf.net/dtd/Tapestry_1_3.dtd">

<component-specification class="net.sf.tapestry.contrib.inspector.ShowEngine" allow-body="no" allow-informal-parameters="no">

  <component id="insertFrameworkVersion" type="Insert">
  	<field-binding name="value" field-name="net.sf.tapestry.Tapestry.VERSION"/>
  </component>

  <component id="insertApplicationName" type="Insert">
    <binding name="value" expression="page.engine.specification.name"/>
  </component>

  <component id="insertContextPath" type="Insert">
    <binding name="value" expression="page.engine.contextPath"/>
  </component>

  <component id="insertServletPath" type="Insert">
    <binding name="value" expression="page.engine.servletPath"/>
  </component>

  <component id="insertEngineClass" type="Insert">
    <binding name="value" expression="engineClassName"/>
  </component>

  <component id="insertLocale" type="Insert">
    <binding name="value" expression="page.engine.locale.displayName"/>
  </component>

  <component id="ifNoVisit" type="Conditional">
    <binding name="condition" expression="! page.engine.hasVisit"/>
  </component>

  <component id="insertVisit" type="Insert">
    <binding name="value" expression="page.engine.visit"/>
  </component>

  <component id="ifVisit" type="Conditional">
    <binding name="condition" expression="page.engine.hasVisit"/>
  </component>

  <component id="restart" type="ServiceLink">
    <b...

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