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gave the "top" page the makeover it so richly deserved - now, instead of an

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array of content panels, we have a big content panel (use to come later)
plus a set of configurable "sideboxes" that look kind of like Slashboxes...
This commit is contained in:
Eric J. Bowersox
2001-02-16 05:51:20 +00:00
parent 36f7c7f10f
commit bda25d9aa2
23 changed files with 776 additions and 963 deletions
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7
src/com/silverwrist/venice/servlets/Top.java
View File

@@ -76,7 +76,7 @@ public class Top extends VeniceServlet
try
{ // attempt to get the user content
return new TopContent(user);
return new TopDisplay(getServletContext(),user);
} // end try
catch (DataException de)
@@ -84,6 +84,11 @@ public class Top extends VeniceServlet
return new ErrorBox("Database Error","Error loading front page: " + de.getMessage(),null);
} // end catch
catch (AccessError ae)
{ // there was an access error, whoops!
return new ErrorBox("Access Error",ae.getMessage(),null);
} // end catch
} // end doVeniceGet

31
src/com/silverwrist/venice/servlets/VeniceServlet.java
View File

@@ -311,28 +311,6 @@ public abstract class VeniceServlet extends HttpServlet
} // end isImageButtonClicked
/*
protected static final VeniceEngine getVeniceEngine(ServletContext ctxt) throws ServletException
{
return Variables.getVeniceEngine(ctxt);
} // end getVeniceEngine
protected final VeniceEngine getVeniceEngine() throws ServletException
{
return Variables.getVeniceEngine(getServletContext());
} // end getVeniceEngine
*/
/*
protected final UserContext getUserContext(HttpServletRequest request) throws ServletException
{
return Variables.getUserContext(getServletContext(),request,request.getSession(true));
} // end getUserContext
*/
protected final void putUserContext(HttpServletRequest request, UserContext ctxt)
{
Variables.putUserContext(request.getSession(true),ctxt);
@@ -387,15 +365,6 @@ public abstract class VeniceServlet extends HttpServlet
} // end clearMenu
/*
protected final RenderData createRenderData(HttpServletRequest request, HttpServletResponse response)
throws ServletException
{
return RenderConfig.createRenderData(getServletContext(),request,response);
} // end createRenderData
*/
protected final String getStandardCommandParam(ServletRequest request)
{
String foo = request.getParameter("cmd");

6
src/com/silverwrist/venice/servlets/format/RenderData.java
View File

@@ -252,6 +252,12 @@ public class RenderData
} // end storeJSPRender
public void setRequestAttribute(String name, Object value)
{
request.setAttribute(name,value);
} // end setRequestAttribute
public void forwardDispatch(RequestDispatcher dispatcher) throws IOException, ServletException
{
dispatcher.forward(request,response);

80
src/com/silverwrist/venice/servlets/format/SideBoxConferences.java Normal file
View File

@@ -0,0 +1,80 @@
/*
* The contents of this file are subject to the Mozilla Public License Version 1.1
* (the "License"); you may not use this file except in compliance with the License.
* You may obtain a copy of the License at <http://www.mozilla.org/MPL/>.
*
* Software distributed under the License is distributed on an "AS IS" basis, WITHOUT
* WARRANTY OF ANY KIND, either express or implied. See the License for the specific
* language governing rights and limitations under the License.
*
* The Original Code is the Venice Web Communities System.
*
* The Initial Developer of the Original Code is Eric J. Bowersox <erbo@silcom.com>,
* for Silverwrist Design Studios. Portions created by Eric J. Bowersox are
* Copyright (C) 2001 Eric J. Bowersox/Silverwrist Design Studios. All Rights Reserved.
*
* Contributor(s):
*/
package com.silverwrist.venice.servlets.format;
import java.io.*;
import java.util.*;
import com.silverwrist.venice.core.*;
public class SideBoxConferences implements ContentRender
{
/*--------------------------------------------------------------------------------
* Attributes
*--------------------------------------------------------------------------------
*/
private UserContext uc;
/*--------------------------------------------------------------------------------
* Constructor
*--------------------------------------------------------------------------------
*/
public SideBoxConferences(UserContext uc, String parameter)
{
this.uc = uc;
} // end constructor
/*--------------------------------------------------------------------------------
* Implementations from interface VeniceContent
*--------------------------------------------------------------------------------
*/
public String getPageTitle(RenderData rdat)
{
if (uc.isLoggedIn())
return "Your Conference Hotlist:";
else
return "Featured Conferences:";
} // end getPageTitle
/*--------------------------------------------------------------------------------
* Implementations from interface ContentRender
*--------------------------------------------------------------------------------
*/
public void renderHere(Writer out, RenderData rdat) throws IOException
{
/* BEGIN TEMP */
out.write("<FONT FACE=\"Arial, Helvetica\" SIZE=2><UL>\n");
out.write("<LI>BOFH (Benevolent Dictators)</LI>\n");
out.write("<LI>Playground (Electric Minds)</LI>\n");
out.write("<LI>Commons (Electric Minds)</LI>\n");
out.write("<LI>Top Ten Lists (Pamela's Lounge)</LI>\n");
out.write("</UL></FONT>\n");
/* END TEMP */
// write the link at the end
out.write("<P>" + rdat.getStdFontTag(null,1) + "<B>[ <A HREF=\"" + rdat.getEncodedServletPath("TODO")
+ "\">Manage</A> ]</B></FONT>");
} // end renderHere
} // end class SideBoxConferences

103
src/com/silverwrist/venice/servlets/format/SideBoxSIGs.java Normal file
View File

@@ -0,0 +1,103 @@
/*
* The contents of this file are subject to the Mozilla Public License Version 1.1
* (the "License"); you may not use this file except in compliance with the License.
* You may obtain a copy of the License at <http://www.mozilla.org/MPL/>.
*
* Software distributed under the License is distributed on an "AS IS" basis, WITHOUT
* WARRANTY OF ANY KIND, either express or implied. See the License for the specific
* language governing rights and limitations under the License.
*
* The Original Code is the Venice Web Communities System.
*
* The Initial Developer of the Original Code is Eric J. Bowersox <erbo@silcom.com>,
* for Silverwrist Design Studios. Portions created by Eric J. Bowersox are
* Copyright (C) 2001 Eric J. Bowersox/Silverwrist Design Studios. All Rights Reserved.
*
* Contributor(s):
*/
package com.silverwrist.venice.servlets.format;
import java.io.*;
import java.util.*;
import com.silverwrist.util.StringUtil;
import com.silverwrist.venice.core.*;
public class SideBoxSIGs implements ContentRender
{
/*--------------------------------------------------------------------------------
* Attributes
*--------------------------------------------------------------------------------
*/
private UserContext uc;
private List sig_list;
/*--------------------------------------------------------------------------------
* Constructor
*--------------------------------------------------------------------------------
*/
public SideBoxSIGs(UserContext uc, String parameter) throws DataException
{
this.uc = uc;
this.sig_list = uc.getMemberSIGs();
} // end constructor
/*--------------------------------------------------------------------------------
* Implementations from interface VeniceContent
*--------------------------------------------------------------------------------
*/
public String getPageTitle(RenderData rdat)
{
if (uc.isLoggedIn())
return "Your SIGs:";
else
return "Featured SIGs:";
} // end getPageTitle
/*--------------------------------------------------------------------------------
* Implementations from interface ContentRender
*--------------------------------------------------------------------------------
*/
public void renderHere(Writer out, RenderData rdat) throws IOException
{
out.write(rdat.getStdFontTag(null,2) + "\n");
if (sig_list.size()>0)
{ // display the list of available SIGs
out.write("<TABLE ALIGN=CENTER BORDER=0 CELLPADDING=0 CELLSPACING=2>\n");
Iterator it = sig_list.iterator();
while (it.hasNext())
{ // display the names of the SIGs one by one
SIGContext sig = (SIGContext)(it.next());
out.write("<TR VALIGN=MIDDLE>\n<TD ALIGN=CENTER WIDTH=14><IMG SRC=\""
+ rdat.getFullImagePath("purple-ball.gif")
+ "\" ALT=\"*\" WIDTH=14 HEIGHT=14 BORDER=0></TD>\n");
out.write("<TD ALIGN=LEFT>\n" + rdat.getStdFontTag(null,2) + "<B><A HREF=\""
+ rdat.getEncodedServletPath("sig/" + sig.getAlias()) + "\">"
+ StringUtil.encodeHTML(sig.getName()) + "</A></B></FONT>\n");
if (sig.isAdmin())
out.write("&nbsp;<IMG SRC=\"" + rdat.getFullImagePath("tag_host.gif")
+ "\" ALT=\"Host!\" BORDER=0 WIDTH=40 HEIGHT=20>\n");
out.write("</TD>\n</TR>\n");
} // end while
out.write("</TABLE>\n");
} // end if
else
out.write(rdat.getStdFontTag(null,2) + "<EM>You are not a member of any SIGs.</EM></FONT>\n");
// write the two links at the end
out.write("<P>" + rdat.getStdFontTag(null,1) + "<B>[ <A HREF=\"" + rdat.getEncodedServletPath("TODO")
+ "\">Manage</A> | <A HREF=\"" + rdat.getEncodedServletPath("sigops?cmd=C")
+ "\">Create New</A> ]</B></FONT>");
} // end renderHere
} // end class SideBoxSIGs

67
src/com/silverwrist/venice/servlets/format/TCPanelConferences.java
View File

@@ -1,67 +0,0 @@
/*
* The contents of this file are subject to the Mozilla Public License Version 1.1
* (the "License"); you may not use this file except in compliance with the License.
* You may obtain a copy of the License at <http://www.mozilla.org/MPL/>.
*
* Software distributed under the License is distributed on an "AS IS" basis, WITHOUT
* WARRANTY OF ANY KIND, either express or implied. See the License for the specific
* language governing rights and limitations under the License.
*
* The Original Code is the Venice Web Community System.
*
* The Initial Developer of the Original Code is Eric J. Bowersox <erbo@silcom.com>,
* for Silverwrist Design Studios. Portions created by Eric J. Bowersox are
* Copyright (C) 2001 Eric J. Bowersox/Silverwrist Design Studios. All Rights Reserved.
*
* Contributor(s):
*/
package com.silverwrist.venice.servlets.format;
import java.io.Writer;
import java.io.IOException;
import com.silverwrist.venice.core.UserContext;
import com.silverwrist.venice.core.DataException;
public class TCPanelConferences extends TCStandardPanel
{
public TCPanelConferences()
{
super("Your Favorite Conferences:",null);
addButton("bn_manage.gif","Manage",null,true,80,24);
} // end constructor
public TCPanelConferences(TCPanelConferences other)
{
super(other);
} // end constructor
public void renderContent(Writer out, RenderData rdat) throws IOException
{
/* BEGIN TEMP */
out.write("<FONT FACE=\"Arial, Helvetica\" SIZE=2><UL>\n");
out.write("<LI>BOFH (Benevolent Dictators)</LI>\n");
out.write("<LI>Playground (Electric Minds)</LI>\n");
out.write("<LI>Commons (Electric Minds)</LI>\n");
out.write("<LI>Top Ten Lists (Pamela's Lounge)</LI>\n");
out.write("</UL></FONT>\n");
/* END TEMP */
} // end renderHere
public void configure(UserContext uc, String parameter) throws DataException
{ // TEMP - do nothing
super.configure(uc,parameter);
if (!(uc.isLoggedIn()))
setTitle("Featured Conferences:");
} // end configure
public Object clone()
{
return new TCPanelConferences(this);
} // end clone
} // end class TCPanelSIGs

92
src/com/silverwrist/venice/servlets/format/TCPanelSIGs.java
View File

@@ -1,92 +0,0 @@
/*
* The contents of this file are subject to the Mozilla Public License Version 1.1
* (the "License"); you may not use this file except in compliance with the License.
* You may obtain a copy of the License at <http://www.mozilla.org/MPL/>.
*
* Software distributed under the License is distributed on an "AS IS" basis, WITHOUT
* WARRANTY OF ANY KIND, either express or implied. See the License for the specific
* language governing rights and limitations under the License.
*
* The Original Code is the Venice Web Community System.
*
* The Initial Developer of the Original Code is Eric J. Bowersox <erbo@silcom.com>,
* for Silverwrist Design Studios. Portions created by Eric J. Bowersox are
* Copyright (C) 2001 Eric J. Bowersox/Silverwrist Design Studios. All Rights Reserved.
*
* Contributor(s):
*/
package com.silverwrist.venice.servlets.format;
import java.io.Writer;
import java.io.IOException;
import java.util.List;
import java.util.Iterator;
import com.silverwrist.venice.core.SIGContext;
import com.silverwrist.venice.core.UserContext;
import com.silverwrist.venice.core.DataException;
public class TCPanelSIGs extends TCStandardPanel
{
private List my_sigs = null;
public TCPanelSIGs()
{
super("Your SIGs:",null);
addButton("bn_manage.gif","Manage",null,true,80,24);
addButton("bn_create_new.gif","Create New","sigops?cmd=C",true,80,24);
} // end constructor
protected TCPanelSIGs(TCPanelSIGs other)
{
super(other);
} // end constructor
public void renderContent(Writer out, RenderData rdat) throws IOException
{
out.write(rdat.getStdFontTag(null,2) + "\n");
if (my_sigs.size()>0)
{ // display the list of available SIGs
out.write("<UL>\n");
Iterator it = my_sigs.iterator();
while (it.hasNext())
{ // display the names of the SIGs one by one
SIGContext sig = (SIGContext)(it.next());
// TODO: make this fancier than just an unordered list
out.write("<LI><B><A HREF=\"" + rdat.getEncodedServletPath("sig/" + sig.getAlias())
+ "\">" + sig.getName() + "</A></B>");
if (sig.isAdmin())
out.write("&nbsp;<IMG SRC=\"" + rdat.getFullImagePath("tag_host.gif")
+ "\" ALT=\"Host!\" BORDER=0 WIDTH=40 HEIGHT=20>");
out.write("</LI>\n");
} // end while
out.write("</UL>\n");
} // end if
else
out.write("<EM>You are not a member of any SIGs.</EM>\n");
out.write("</FONT>\n");
} // end renderContent
public void configure(UserContext uc, String parameter) throws DataException
{
super.configure(uc,parameter);
if (!(uc.isLoggedIn()))
setTitle("Featured SIGs:");
my_sigs = uc.getMemberSIGs();
} // end configure
public Object clone()
{
return new TCPanelSIGs(this);
} // end clone
} // end class TCPanelSIGs

184
src/com/silverwrist/venice/servlets/format/TCStandardPanel.java
View File

@@ -1,184 +0,0 @@
/*
* The contents of this file are subject to the Mozilla Public License Version 1.1
* (the "License"); you may not use this file except in compliance with the License.
* You may obtain a copy of the License at <http://www.mozilla.org/MPL/>.
*
* Software distributed under the License is distributed on an "AS IS" basis, WITHOUT
* WARRANTY OF ANY KIND, either express or implied. See the License for the specific
* language governing rights and limitations under the License.
*
* The Original Code is the Venice Web Community System.
*
* The Initial Developer of the Original Code is Eric J. Bowersox <erbo@silcom.com>,
* for Silverwrist Design Studios. Portions created by Eric J. Bowersox are
* Copyright (C) 2001 Eric J. Bowersox/Silverwrist Design Studios. All Rights Reserved.
*
* Contributor(s):
*/
package com.silverwrist.venice.servlets.format;
import java.io.Writer;
import java.io.IOException;
import java.util.Enumeration;
import java.util.Vector;
import com.silverwrist.venice.core.UserContext;
import com.silverwrist.venice.core.DataException;
public abstract class TCStandardPanel extends TopContentPanel
{
class TCButton implements ComponentRender
{
private String image;
private String alt_text;
private String url;
private boolean login_only;
private int width;
private int height;
public TCButton(String image, String alt_text, String url, boolean login_only, int width, int height)
{
this.image = image;
this.alt_text = alt_text;
this.url = url;
this.login_only = login_only;
this.width = width;
this.height = height;
} // end constructor
public void renderHere(Writer out, RenderData rdat) throws IOException
{
if (url!=null)
out.write("<A HREF=\"" + rdat.getEncodedServletPath(url) + "\">");
out.write("<IMG SRC=\"" + rdat.getFullImagePath(image) + "\" ALT=\"" + alt_text);
out.write("\" BORDER=0 WIDTH=" + String.valueOf(width) + " HEIGHT=" + String.valueOf(height) + ">");
if (url!=null)
out.write("</A>");
} // end renderHere
public boolean isLoginOnly()
{
return login_only;
} // end isLoginOnly
} // end class TCButton
// Attributes
private String title;
private String subtitle;
private Vector buttons;
private String real_title;
private String real_subtitle;
private boolean logged_in;
protected TCStandardPanel(String title, String subtitle)
{
this.title = title;
this.subtitle = subtitle;
this.buttons = new Vector();
this.real_title = title;
this.real_subtitle = subtitle;
} // end constructor
protected TCStandardPanel(TCStandardPanel other)
{
super(other);
this.title = other.title;
this.subtitle = other.subtitle;
this.buttons = other.buttons;
this.real_title = other.title;
this.real_subtitle = other.subtitle;
} // end constructor
private boolean displayButtons()
{
if (buttons.size()==0)
return false;
else if (logged_in)
return true;
boolean login_only = true;
Enumeration enum = buttons.elements();
while (login_only && enum.hasMoreElements())
{ // attempt to determine if there are any non-"login only" buttons
TCButton bn = (TCButton)(enum.nextElement());
login_only = bn.isLoginOnly();
} // end while
return !login_only;
} // end displayButtons
protected void addButton(String image, String alt_text, String url, boolean login_only, int width,
int height)
{
buttons.addElement(new TCButton(image,alt_text,url,login_only,width,height));
} // end addButton
protected abstract void renderContent(Writer out, RenderData rdat) throws IOException;
public void renderHere(Writer out, RenderData rdat) throws IOException
{
rdat.writeContentHeader(out,real_title,real_subtitle);
if (displayButtons())
{ // want to print the buttons
out.write("<DIV ALIGN=\"LEFT\">\n");
Enumeration enum = buttons.elements();
boolean first_post = true;
while (enum.hasMoreElements())
{ // figure out whether to display this button
TCButton bn = (TCButton)(enum.nextElement());
boolean display_me = logged_in;
if (logged_in)
display_me = true;
else
display_me = !(bn.isLoginOnly());
if (display_me)
{ // display this button
if (first_post)
first_post = false;
else
out.write("&nbsp;&nbsp;");
bn.renderHere(out,rdat);
} // end if
} // end while
out.write("\n</DIV>\n");
} // end if
renderContent(out,rdat);
} // end renderHere
public void configure(UserContext uc, String parameter) throws DataException
{
logged_in = uc.isLoggedIn();
} // end configure
public void setTitle(String title)
{
this.real_title = title;
} // end setTitle
public void setSubtitle(String title)
{
this.real_subtitle = subtitle;
} // end setTitle
} // end class TCPanelSIGs

142
src/com/silverwrist/venice/servlets/format/TopContent.java
View File

@@ -1,142 +0,0 @@
/*
* The contents of this file are subject to the Mozilla Public License Version 1.1
* (the "License"); you may not use this file except in compliance with the License.
* You may obtain a copy of the License at <http://www.mozilla.org/MPL/>.
*
* Software distributed under the License is distributed on an "AS IS" basis, WITHOUT
* WARRANTY OF ANY KIND, either express or implied. See the License for the specific
* language governing rights and limitations under the License.
*
* The Original Code is the Venice Web Communities System.
*
* The Initial Developer of the Original Code is Eric J. Bowersox <erbo@silcom.com>,
* for Silverwrist Design Studios. Portions created by Eric J. Bowersox are
* Copyright (C) 2001 Eric J. Bowersox/Silverwrist Design Studios. All Rights Reserved.
*
* Contributor(s):
*/
package com.silverwrist.venice.servlets.format;
import java.io.Writer;
import java.io.IOException;
import java.util.*;
import com.silverwrist.venice.core.*;
public class TopContent implements ContentRender
{
/*--------------------------------------------------------------------------------
* Static data members
*--------------------------------------------------------------------------------
*/
public static final int MAX_COLS = 2;
/*--------------------------------------------------------------------------------
* Attributes
*--------------------------------------------------------------------------------
*/
private int actual_cols = MAX_COLS;
private int[] col_sizes;
private Vector panels = new Vector();
private boolean display_configure;
/*--------------------------------------------------------------------------------
* Constructor
*--------------------------------------------------------------------------------
*/
public TopContent(UserContext uc) throws DataException
{
int i; // loop counter
// get the current view configuration
FrontPageViewConfig vconfig = uc.getFrontPageViewConfig(MAX_COLS);
if (vconfig.getNumColumns()<MAX_COLS)
actual_cols = vconfig.getNumColumns();
// compute the column sizes in percentages
col_sizes = new int[actual_cols];
int base_amt = 100 / actual_cols;
int rem_amt = 100 % actual_cols;
for (i=0; i<actual_cols; i++)
{ // initialize the column sizes
col_sizes[i] = base_amt;
if (i<rem_amt)
col_sizes[i]++;
} // end for
// load the top content
TopContentPanel parray[];
for (i=0; i<vconfig.getNumRows(); i++)
{ // create array and load it with panels
parray = new TopContentPanel[actual_cols];
for (int j=0; j<actual_cols; j++)
{ // create and configure the parts in this row
parray[j] = TopContentPanel.create(vconfig.getPartID(i,j));
parray[j].configure(uc,vconfig.getParameter(i,j));
} // end for
panels.addElement(parray);
} // end for
display_configure = uc.isLoggedIn();
} // end constructor
/*--------------------------------------------------------------------------------
* Implementations from interface VeniceContent
*--------------------------------------------------------------------------------
*/
public String getPageTitle(RenderData rdat)
{
return "My Front Page";
} // end getPageTitle
/*--------------------------------------------------------------------------------
* Implementations from interface ContentRender
*--------------------------------------------------------------------------------
*/
public void renderHere(Writer out, RenderData rdat) throws IOException
{
out.write("<TABLE BORDER=0 ALIGN=CENTER WIDTH=\"100%\" CELLPADDING=4 CELLSPACING=0>\n");
Enumeration enum = panels.elements();
while (enum.hasMoreElements())
{ // output each row in turn
TopContentPanel[] rowarray = (TopContentPanel[])(enum.nextElement());
out.write("<TR VALIGN=TOP>\n");
for (int i=0; i<actual_cols; i++)
{ // write the table data header and then render the content
out.write("<TD ALIGN=LEFT WIDTH=\"" + String.valueOf(col_sizes[i]) + "%\">\n");
rowarray[i].renderHere(out,rdat);
out.write("</TD>\n");
} // end for
out.write("</TR>\n");
} // end while
out.write("</TABLE>\n");
if (display_configure)
{ // display the Configure button
out.write("<HR WIDTH=\"80%\"><DIV ALIGN=\"LEFT\">\n<A HREF=\"\"><IMG SRC=\"");
out.write(rdat.getFullImagePath("bn_configure.gif"));
out.write("\" ALT=\"Configure\" WIDTH=80 HEIGHT=24 BORDER=0></A>\n</DIV>\n");
} // end if
rdat.writeFooter(out);
} // end renderHere
} // end class TopContent

50
src/com/silverwrist/venice/servlets/format/TopContentPanel.java
View File

@@ -1,50 +0,0 @@
/*
* The contents of this file are subject to the Mozilla Public License Version 1.1
* (the "License"); you may not use this file except in compliance with the License.
* You may obtain a copy of the License at <http://www.mozilla.org/MPL/>.
*
* Software distributed under the License is distributed on an "AS IS" basis, WITHOUT
* WARRANTY OF ANY KIND, either express or implied. See the License for the specific
* language governing rights and limitations under the License.
*
* The Original Code is the Venice Web Community System.
*
* The Initial Developer of the Original Code is Eric J. Bowersox <erbo@silcom.com>,
* for Silverwrist Design Studios. Portions created by Eric J. Bowersox are
* Copyright (C) 2001 Eric J. Bowersox/Silverwrist Design Studios. All Rights Reserved.
*
* Contributor(s):
*/
package com.silverwrist.venice.servlets.format;
import java.io.Writer;
import java.io.IOException;
import com.silverwrist.venice.core.UserContext;
import com.silverwrist.venice.core.DataException;
public abstract class TopContentPanel implements ComponentRender, Cloneable
{
protected TopContentPanel()
{ // do nothing
} // end constructor
protected TopContentPanel(TopContentPanel other)
{ // do nothing
} // end constructor
public abstract void renderHere(Writer out, RenderData rdat) throws IOException;
public abstract void configure(UserContext uc, String parameter) throws DataException;
public static TopContentPanel create(String partid)
{
if (partid.equals("SIGS"))
return new TCPanelSIGs();
if (partid.equals("CONF"))
return new TCPanelConferences();
return null;
} // end create
} // end class TopContentPanel

245
src/com/silverwrist/venice/servlets/format/TopDisplay.java Normal file
View File

@@ -0,0 +1,245 @@
/*
* The contents of this file are subject to the Mozilla Public License Version 1.1
* (the "License"); you may not use this file except in compliance with the License.
* You may obtain a copy of the License at <http://www.mozilla.org/MPL/>.
*
* Software distributed under the License is distributed on an "AS IS" basis, WITHOUT
* WARRANTY OF ANY KIND, either express or implied. See the License for the specific
* language governing rights and limitations under the License.
*
* The Original Code is the Venice Web Communities System.
*
* The Initial Developer of the Original Code is Eric J. Bowersox <erbo@silcom.com>,
* for Silverwrist Design Studios. Portions created by Eric J. Bowersox are
* Copyright (C) 2001 Eric J. Bowersox/Silverwrist Design Studios. All Rights Reserved.
*
* Contributor(s):
*/
package com.silverwrist.venice.servlets.format;
import java.io.Writer;
import java.io.IOException;
import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;
import com.silverwrist.util.StringUtil;
import com.silverwrist.venice.core.*;
public class TopDisplay implements ContentRender
{
/*--------------------------------------------------------------------------------
* Static data values
*--------------------------------------------------------------------------------
*/
private static final String ATTR_NAME = "com.silverwrist.venice.TopDisplay";
/*--------------------------------------------------------------------------------
* Attributes
*--------------------------------------------------------------------------------
*/
private ServletContext ctxt;
private UserContext uc;
private List descrs;
private VeniceContent[] sideboxes;
/*--------------------------------------------------------------------------------
* Constructor
*--------------------------------------------------------------------------------
*/
public TopDisplay(ServletContext ctxt, UserContext uc) throws DataException, AccessError, ErrorBox
{
// Stash some basic information.
this.ctxt = ctxt;
this.uc = uc;
this.descrs = uc.getSideBoxList();
// Create the arrays used to construct sideboxes.
Class[] ctor_argtypes = new Class[2];
ctor_argtypes[0] = UserContext.class;
ctor_argtypes[1] = String.class;
Object[] ctor_args = new Object[2];
ctor_args[0] = uc;
// Create the actual sideboxes.
sideboxes = new VeniceContent[descrs.size()];
for (int i=0; i<descrs.size(); i++)
{ // create each sidebox in turn...
SideBoxDescriptor d = (SideBoxDescriptor)(descrs.get(i));
String cn = "com.silverwrist.venice.servlets.format." + d.getClassname();
try
{ // get the class name and the constructor pointer
Class sb_class = Class.forName(cn);
if (!(VeniceContent.class.isAssignableFrom(sb_class)))
throw new ErrorBox(null,"Invalid sidebox class: " + cn,null);
java.lang.reflect.Constructor ctor = sb_class.getDeclaredConstructor(ctor_argtypes);
// create the side box!
ctor_args[1] = d.getParameter();
sideboxes[i] = (VeniceContent)(ctor.newInstance(ctor_args));
} // end try
catch (ClassNotFoundException cnfe)
{ // Class.forName didn't work? yIkes!
throw new ErrorBox(null,"Cannot find sidebox class: " + cn,null);
} // end catch
catch (NoSuchMethodException nsme)
{ // no constructor matching the prototype? yIkes!
throw new ErrorBox(null,"Cannot find sidebox class constructor: " + cn,null);
} // end catch
catch (SecurityException se)
{ // how'd we trip the security manager? oh well...
throw new ErrorBox(null,"Security violation on class: " + cn,null);
} // end catch
catch (InstantiationException ie)
{ // the target class is an abstract class - oh, that's not right!
throw new ErrorBox(null,"Invalid sidebox class: " + cn,null);
} // end catch
catch (IllegalAccessException iae1)
{ // the constructor isn't public - oh, that's not right!
throw new ErrorBox(null,"Invalid sidebox class: " + cn,null);
} // end catch
catch (IllegalArgumentException iae2)
{ // the arguments to the constructor are wrong - we should've caught this!
throw new ErrorBox(null,"Invalid constructor call: " + cn,null);
} // end catch
catch (java.lang.reflect.InvocationTargetException ite)
{ // the constructor itself threw an exception
Throwable sub_e = ite.getTargetException();
if (sub_e instanceof DataException)
throw (DataException)sub_e;
if (sub_e instanceof AccessError)
throw (AccessError)sub_e;
throw new ErrorBox(null,"Unknown exception creating: " + cn,null);
} // end catch
} // end for
} // end constructor
/*--------------------------------------------------------------------------------
* External static operations
*--------------------------------------------------------------------------------
*/
public static TopDisplay retrieve(ServletRequest request)
{
return (TopDisplay)(request.getAttribute(ATTR_NAME));
} // end retrieve
/*--------------------------------------------------------------------------------
* Implementations from interface VeniceContent
*--------------------------------------------------------------------------------
*/
public String getPageTitle(RenderData rdat)
{
return "My Front Page";
} // end getPageTitle
/*--------------------------------------------------------------------------------
* Implementations from interface ContentRender
*--------------------------------------------------------------------------------
*/
public void renderHere(Writer out, RenderData rdat) throws IOException
{
// Write out the start of the content structure.
out.write("<TABLE BORDER=0 ALIGN=CENTER WIDTH=\"100%\" CELLPADDING=4 CELLSPACING=0><TR VALIGN=TOP>\n");
out.write("<TD ALIGN=LEFT>\n");
// The top content is a JSP page, so include it here.
rdat.setRequestAttribute(ATTR_NAME,this);
RequestDispatcher dispatcher = ctxt.getRequestDispatcher(rdat.getFormatJSPPath("top_content.jsp"));
out.flush();
rdat.flushOutput(); // make sure the stuff to be output first is output
try
{ // include me!
rdat.includeDispatch(dispatcher);
} // end try
catch (ServletException se)
{ // since we can't throw ServletException, we throw IOException
throw new IOException("Failure including top_content.jsp");
} // end catch
rdat.flushOutput(); // now make sure the included page is properly flushed
out.write("</TD>\n<TD ALIGN=CENTER WIDTH=210>\n"); // break to the sidebox column
for (int i=0; i<sideboxes.length; i++)
{ // draw in the outer framework of the sidebox
out.write("<TABLE ALIGN=CENTER WIDTH=200 BORDER=0 CELLPADDING=2 CELLSPACING=0>"
+ "<TR VALIGN=MIDDLE BGCOLOR=\"#6666CC\"><TD ALIGN=LEFT>\n");
out.write(rdat.getStdFontTag("white",3) + "<B>" + StringUtil.encodeHTML(sideboxes[i].getPageTitle(rdat))
+ "</B></FONT>\n");
out.write("</TD></TR><TR VALIGN=TOP BGCOLOR=\"#9999FF\"><TD ALIGN=LEFT>\n");
// Fill in the sidebox by calling down to the base.
if (sideboxes[i] instanceof ContentRender)
{ // we have a direct-rendering component here - do it
ContentRender cr = (ContentRender)(sideboxes[i]);
cr.renderHere(out,rdat);
} // end if
else if (sideboxes[i] instanceof JSPRender)
{ // we have a JSP rendering component here - bounce to the appropriate JSP file
JSPRender jr = (JSPRender)(sideboxes[i]);
rdat.storeJSPRender(jr);
dispatcher = ctxt.getRequestDispatcher(rdat.getFormatJSPPath(jr.getTargetJSPName()));
out.flush();
rdat.flushOutput(); // make sure the stuff to be output first is output
try
{ // include me!
rdat.includeDispatch(dispatcher);
} // end try
catch (ServletException se)
{ // since we can't throw ServletException, we throw IOException
out.write(rdat.getStdFontTag(null,2) + "<EM>failure rendering class "
+ sideboxes[i].getClass().getName() + ": " + StringUtil.encodeHTML(se.getMessage())
+ "</EM></FONT>\n");
out.flush();
} // end catch
rdat.flushOutput(); // now make sure the included page is properly flushed
} // end else if
else // this is bogus - just display a little error here
out.write(rdat.getStdFontTag(null,2) + "<EM>cannot display sidebox of class: "
+ sideboxes[i].getClass().getName() + "</EM></FONT>\n");
// close up the framework of this sidebox
out.write("</TD></TR></TABLE><P>\n");
} // end for
if (uc.isLoggedIn())
{ // write the Configure button below the sideboxes
out.write("<A HREF=\"" + rdat.getEncodedServletPath("TODO") + "\"><IMG SRC=\""
+ rdat.getFullImagePath("bn_configure.gif")
+ "\" ALT=\"Configure\" WIDTH=80 HEIGHT=24 BORDER=0></A>\n");
} // end if
// Finish up.
out.write("</TD>\n</TR></TABLE>");
rdat.writeFooter(out);
} // end renderHere
} // end class TopDisplay