modified the left menu definition style to accomodate images and better
use XML text attributes
This commit is contained in:
Eric J. Bowersox
parent
5b17952eee
commit
81c7109152
@ -144,30 +144,15 @@ Text of this agreement is TBD.
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<!-- Definition for the "top" menu (when not in a community) -->
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<menudef id="top">
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<header>Front Page</header>
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<menuitem>
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<text>Calendar</text>
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<absolute>TODO</absolute>
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<disabled/>
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</menuitem>
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<menuitem>
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<text>Chat</text>
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<absolute>TODO</absolute>
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<disabled/>
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</menuitem>
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<link href="TODO" type="absolute" disabled="true">Calendar</link>
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<link href="TODO" type="absolute" disabled="true">Chat</link>
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</menudef>
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<!-- Definition for the "fixed" menu (always displayed under the "top" or "community" menus) -->
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<menudef id="fixed">
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<header>About This Site</header>
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<menuitem>
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<text>Documentation</text>
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<absolute>TODO</absolute>
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<disabled/>
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</menuitem>
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<menuitem>
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<text>About Venice</text>
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<frame>about-venice.html</frame>
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</menuitem>
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<link href="TODO" type="absolute" disabled="true">Documentation</link>
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<link href="about-venice.html" type="frame">About Venice</link>
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</menudef>
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</menu-definitions>
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@ -1,57 +0,0 @@
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/*
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* The contents of this file are subject to the Mozilla Public License Version 1.1
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* (the "License"); you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at <http://www.mozilla.org/MPL/>.
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*
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* Software distributed under the License is distributed on an "AS IS" basis, WITHOUT
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* WARRANTY OF ANY KIND, either express or implied. See the License for the specific
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* language governing rights and limitations under the License.
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*
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* The Original Code is the Venice Web Communities System.
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*
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* The Initial Developer of the Original Code is Eric J. Bowersox <erbo@silcom.com>,
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* for Silverwrist Design Studios. Portions created by Eric J. Bowersox are
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* Copyright (C) 2001 Eric J. Bowersox/Silverwrist Design Studios. All Rights Reserved.
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*
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* Contributor(s):
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*/
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package com.silverwrist.venice.servlets.format.menus;
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import org.w3c.dom.*;
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import com.silverwrist.util.*;
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import com.silverwrist.venice.servlets.format.RenderData;
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class FrameLeftMenuItem extends LeftMenuItem
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{
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/*--------------------------------------------------------------------------------
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* Attributes
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*--------------------------------------------------------------------------------
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*/
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String url;
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/*--------------------------------------------------------------------------------
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* Constructor
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*--------------------------------------------------------------------------------
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*/
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FrameLeftMenuItem(Element elt)
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{
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super(elt);
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DOMElementHelper h = new DOMElementHelper(elt);
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url = h.getSubElementText("frame");
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} // end constructor
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/*--------------------------------------------------------------------------------
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* Overrides from class LeftMenuItem
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*--------------------------------------------------------------------------------
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*/
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protected void appendURL(StringBuffer sbuf, RenderData rdat)
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{
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sbuf.append(rdat.getEncodedServletPath("frame/" + url));
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} // end appendURL
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} // end class FrameLeftMenuItem
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@ -19,46 +19,75 @@ package com.silverwrist.venice.servlets.format.menus;
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import java.io.Writer;
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import java.io.IOException;
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import org.apache.log4j.*;
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import org.w3c.dom.*;
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import com.silverwrist.util.*;
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import com.silverwrist.venice.servlets.format.ColorSelectors;
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import com.silverwrist.venice.core.ConfigException;
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import com.silverwrist.venice.servlets.format.ComponentRender;
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import com.silverwrist.venice.servlets.format.RenderData;
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abstract class LeftMenuItem implements ComponentRender, ColorSelectors
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class ImageItem implements ComponentRender
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{
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/*--------------------------------------------------------------------------------
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* Static data members
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*--------------------------------------------------------------------------------
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*/
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private static Category logger = Category.getInstance(LinkItem.class);
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/*--------------------------------------------------------------------------------
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* Attributes
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*--------------------------------------------------------------------------------
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*/
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private String text;
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private boolean disabled = false;
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private boolean new_window = false;
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private String src;
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private String alt = null;
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private int width;
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private int height;
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private boolean fixup;
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/*--------------------------------------------------------------------------------
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* Constructor
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*--------------------------------------------------------------------------------
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*/
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protected LeftMenuItem(Element elt)
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ImageItem(Element elt) throws ConfigException
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{
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if (!(elt.getNodeName().equals("image")))
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{ // just some shorts-checking here to make sure the element is OK
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logger.fatal("huh?!? this should have been a <image/> if it got here!");
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throw new ConfigException("not a <image/> element");
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} // end if
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// get image source
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DOMElementHelper h = new DOMElementHelper(elt);
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text = StringUtil.encodeHTML(h.getSubElementText("text"));
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if (h.hasChildElement("disabled"))
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disabled = true;
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if (h.hasChildElement("new-window"))
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new_window = true;
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if (h.hasAttribute("src"))
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src = elt.getAttribute("src");
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else
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throw new ConfigException("src= attribute of <image/> element not specified");
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// get the image width
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Integer tmp = h.getAttributeInt("width");
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if (tmp!=null)
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width = tmp.intValue();
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else
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throw new ConfigException("width= attribute of <image/> element not specified or invalid");
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// get the image height
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tmp = h.getAttributeInt("height");
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if (tmp!=null)
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height = tmp.intValue();
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else
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throw new ConfigException("height= attribute of <image/> element not specified or invalid");
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if (h.hasAttribute("alt"))
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alt = elt.getAttribute("alt");
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if (h.hasAttribute("fixup"))
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fixup = true;
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} // end constructor
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/*--------------------------------------------------------------------------------
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* Abstract functions which MUST be overridden
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*--------------------------------------------------------------------------------
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*/
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protected abstract void appendURL(StringBuffer sbuf, RenderData rdat);
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/*--------------------------------------------------------------------------------
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* Implementations from interface ComponentRender
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*--------------------------------------------------------------------------------
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@ -66,27 +95,19 @@ abstract class LeftMenuItem implements ComponentRender, ColorSelectors
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public void renderHere(Writer out, RenderData rdat) throws IOException
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{
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StringBuffer buf = new StringBuffer();
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out.write("<IMG SRC=\"");
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if (fixup)
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{ // fix up the image path
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src = rdat.getFullImagePath(src);
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fixup = false;
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if (disabled)
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buf.append("<FONT COLOR=\"").append(rdat.getStdColor(CONTENT_DISABLED)).append("\">");
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else
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{ // write the <A> tag
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buf.append("<A CLASS=\"lbar\" HREF=\"");
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appendURL(buf,rdat);
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buf.append('"');
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if (new_window)
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buf.append(" TARGET=\"_blank\"");
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buf.append("><FONT COLOR=\"").append(rdat.getStdColor(LEFT_LINK)).append("\">");
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} // end if
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} // end else (writing <A> tag)
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buf.append(text).append("</FONT>");
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if (!disabled)
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buf.append("</A>");
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buf.append("<BR>\n");
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out.write(buf.toString());
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out.write(src + "\" WIDTH=" + width + " HEIGHT=" + height);
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if (alt!=null)
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out.write(" ALT=\"" + alt + "\"");
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out.write(" BORDER=0>");
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} // end renderHere
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} // end class LeftMenuItem
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} // end class ImageItem
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@ -36,20 +36,20 @@ public class LeftMenu implements ComponentRender
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static class Header implements ComponentRender
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{
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private String txt; // the actual stored text
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private TextItem item;
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Header(Element elt)
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{
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DOMElementHelper h = new DOMElementHelper(elt);
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StringBuffer buf = new StringBuffer("<B>");
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buf.append(StringUtil.encodeHTML(h.getElementText())).append("</B><BR>\n");
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txt = buf.toString();
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item = new TextItem(h.getElementText());
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} // end constructor
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public void renderHere(Writer out, RenderData rdat) throws IOException
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{
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out.write(txt);
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out.write("<B>");
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item.renderHere(out,rdat);
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out.write("</B><BR>\n");
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} // end renderHere
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@ -110,37 +110,20 @@ public class LeftMenu implements ComponentRender
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Node n = items.item(i);
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if (n.getNodeType()==Node.ELEMENT_NODE)
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{ // we've found a child element - what type is it?
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if (n.getNodeName().equals("menuitem"))
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{ // investigate the contents of the subelement
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DOMElementHelper h = new DOMElementHelper((Element)n);
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if (!(h.hasChildElement("text")))
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{ // no menu item text!
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logger.fatal("<menuitem/> element has no <text/> subelement");
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throw new ConfigException("<menuitem/> element has no <text/> subelement",h.getElement());
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} // end if
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LeftMenuItem mitem = null;
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if (h.hasChildElement("servlet"))
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mitem = new ServletLeftMenuItem(h.getElement());
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else if (h.hasChildElement("absolute"))
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mitem = new AbsoluteLeftMenuItem(h.getElement());
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else if (h.hasChildElement("frame"))
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mitem = new FrameLeftMenuItem(h.getElement());
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else
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{ // we don't know what type of menu this is!
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logger.fatal("unknown <menuitem/> type seen in menu");
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throw new ConfigException("unknown <menuitem/> type seen in menu",h.getElement());
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} // end else
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menu_items.add(mitem);
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} // end if
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else if (n.getNodeName().equals("header"))
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if (n.getNodeName().equals("header"))
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menu_items.add(new Header((Element)n)); // add a new header
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else if (n.getNodeName().equals("separator"))
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menu_items.add(separator_singleton); // all separators are exactly the same
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else if (n.getNodeName().equals("text"))
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{ // add a text item
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DOMElementHelper h = new DOMElementHelper((Element)n);
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menu_items.add(new TextItem(h.getElementText()));
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} // end else if
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else if (n.getNodeName().equals("link"))
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menu_items.add(new LinkItem((Element)n));
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else if (n.getNodeName().equals("image"))
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menu_items.add(new ImageItem((Element)n));
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else
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{ // menu definition has an unknown item
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logger.fatal("unknown element <" + n.getNodeName() + "/> inside <menudef/>");
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137
src/com/silverwrist/venice/servlets/format/menus/LinkItem.java
Normal file
137
src/com/silverwrist/venice/servlets/format/menus/LinkItem.java
Normal file
@ -0,0 +1,137 @@
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/*
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* The contents of this file are subject to the Mozilla Public License Version 1.1
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* (the "License"); you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at <http://www.mozilla.org/MPL/>.
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*
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* Software distributed under the License is distributed on an "AS IS" basis, WITHOUT
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* WARRANTY OF ANY KIND, either express or implied. See the License for the specific
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* language governing rights and limitations under the License.
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*
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* The Original Code is the Venice Web Communities System.
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*
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* The Initial Developer of the Original Code is Eric J. Bowersox <erbo@silcom.com>,
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* for Silverwrist Design Studios. Portions created by Eric J. Bowersox are
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* Copyright (C) 2001 Eric J. Bowersox/Silverwrist Design Studios. All Rights Reserved.
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*
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* Contributor(s):
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*/
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package com.silverwrist.venice.servlets.format.menus;
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import java.io.Writer;
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import java.io.IOException;
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import org.apache.log4j.*;
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import org.w3c.dom.*;
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import com.silverwrist.util.*;
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import com.silverwrist.venice.core.ConfigException;
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import com.silverwrist.venice.servlets.format.ColorSelectors;
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import com.silverwrist.venice.servlets.format.ComponentRender;
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import com.silverwrist.venice.servlets.format.RenderData;
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class LinkItem implements ComponentRender, ColorSelectors
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{
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/*--------------------------------------------------------------------------------
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* Static data members
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*--------------------------------------------------------------------------------
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*/
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private static final String ABSOLUTE = "absolute";
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private static final String SERVLET = "servlet";
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private static final String FRAME = "frame";
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private static final String[] valid_types = { ABSOLUTE, SERVLET, FRAME };
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private static Category logger = Category.getInstance(LinkItem.class);
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/*--------------------------------------------------------------------------------
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* Attributes
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*--------------------------------------------------------------------------------
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*/
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private String href;
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private String type;
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private boolean enabled = true;
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private String target = null;
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private ComponentRender contents;
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/*--------------------------------------------------------------------------------
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* Constructor
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*--------------------------------------------------------------------------------
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*/
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LinkItem(Element elt) throws ConfigException
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{
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if (!(elt.getNodeName().equals("link")))
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{ // just some shorts-checking here to make sure the element is OK
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logger.fatal("huh?!? this should have been a <link/> if it got here!");
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throw new ConfigException("not a <link/> element");
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} // end if
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DOMElementHelper h = new DOMElementHelper(elt);
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href = elt.getAttribute("href");
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if (h.hasAttribute("type"))
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{ // get the "type" and check it
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type = elt.getAttribute("type").trim().toLowerCase();
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boolean err = true;
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for (int i=0; err && (i<valid_types.length); i++)
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if (type.equals(valid_types[i]))
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err = false; // found it!
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if (err)
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{ // type value is not valid
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logger.fatal("type=\"" + type + "\" is not a valid value");
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throw new ConfigException("invalid type= attribute of <link/>");
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} // end if
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} // end if
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else // default to "absolute"
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type = ABSOLUTE;
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// load the "target"
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if (h.hasAttribute("target"))
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target = elt.getAttribute("target");
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// load the "disabled" attribute
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if (h.hasAttribute("disabled"))
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enabled = false;
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// load the contents
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Element x = h.getSubElement("image");
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if (x!=null)
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contents = new ImageItem(x);
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else
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contents = new TextItem(h.getElementText());
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} // end constructor
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/*--------------------------------------------------------------------------------
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* Implementations from interface ComponentRender
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*--------------------------------------------------------------------------------
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*/
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public void renderHere(Writer out, RenderData rdat) throws IOException
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{
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if (enabled)
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{ // write the opening <A> and <FONT> tags
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out.write("<A HREF=\"");
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if (type.equals(ABSOLUTE))
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out.write(href);
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else if (type.equals(SERVLET))
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out.write(rdat.getEncodedServletPath(href));
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else if (type.equals(FRAME))
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out.write(rdat.getEncodedServletPath("frame/" + href));
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out.write("\" CLASS=\"lbar\"");
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if (target!=null)
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out.write(" TARGET=\"" + target + "\"");
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out.write("><FONT COLOR=\"" + rdat.getStdColor(LEFT_LINK) + "\">");
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} // end if
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else // write the "disabled" indicator
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out.write("<FONT COLOR=\"" + rdat.getStdColor(CONTENT_DISABLED) + "\">");
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contents.renderHere(out,rdat);
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out.write("</FONT>");
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if (enabled)
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out.write("</A>");
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out.write("<BR>\n");
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} // end renderHere
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} // end class LinkItem
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@ -1,57 +0,0 @@
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/*
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* 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>,
|
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* for Silverwrist Design Studios. Portions created by Eric J. Bowersox are
|
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* Copyright (C) 2001 Eric J. Bowersox/Silverwrist Design Studios. All Rights Reserved.
|
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*
|
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* Contributor(s):
|
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*/
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package com.silverwrist.venice.servlets.format.menus;
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import org.w3c.dom.*;
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import com.silverwrist.util.*;
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import com.silverwrist.venice.servlets.format.RenderData;
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class ServletLeftMenuItem extends LeftMenuItem
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{
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/*--------------------------------------------------------------------------------
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* Attributes
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*--------------------------------------------------------------------------------
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*/
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String url;
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/*--------------------------------------------------------------------------------
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* Constructor
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*--------------------------------------------------------------------------------
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*/
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ServletLeftMenuItem(Element elt)
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{
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super(elt);
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DOMElementHelper h = new DOMElementHelper(elt);
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url = h.getSubElementText("servlet");
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} // end constructor
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/*--------------------------------------------------------------------------------
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* Overrides from class LeftMenuItem
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*--------------------------------------------------------------------------------
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*/
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protected void appendURL(StringBuffer sbuf, RenderData rdat)
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{
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sbuf.append(rdat.getEncodedServletPath(url));
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} // end appendURL
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||||
} // end class ServletLeftMenuItem
|
||||
@ -17,41 +17,41 @@
|
||||
*/
|
||||
package com.silverwrist.venice.servlets.format.menus;
|
||||
|
||||
import org.w3c.dom.*;
|
||||
import com.silverwrist.util.*;
|
||||
import java.io.Writer;
|
||||
import java.io.IOException;
|
||||
import com.silverwrist.util.StringUtil;
|
||||
import com.silverwrist.venice.servlets.format.ComponentRender;
|
||||
import com.silverwrist.venice.servlets.format.RenderData;
|
||||
|
||||
class AbsoluteLeftMenuItem extends LeftMenuItem
|
||||
class TextItem implements ComponentRender
|
||||
{
|
||||
/*--------------------------------------------------------------------------------
|
||||
* Attributes
|
||||
*--------------------------------------------------------------------------------
|
||||
*/
|
||||
|
||||
String url;
|
||||
private String contents;
|
||||
|
||||
/*--------------------------------------------------------------------------------
|
||||
* Constructor
|
||||
*--------------------------------------------------------------------------------
|
||||
*/
|
||||
|
||||
AbsoluteLeftMenuItem(Element elt)
|
||||
TextItem(String contents)
|
||||
{
|
||||
super(elt);
|
||||
DOMElementHelper h = new DOMElementHelper(elt);
|
||||
url = h.getSubElementText("absolute");
|
||||
this.contents = StringUtil.encodeHTML(contents);
|
||||
|
||||
} // end constructor
|
||||
|
||||
/*--------------------------------------------------------------------------------
|
||||
* Overrides from class LeftMenuItem
|
||||
* Implementations from interface ComponentRender
|
||||
*--------------------------------------------------------------------------------
|
||||
*/
|
||||
|
||||
protected void appendURL(StringBuffer sbuf, RenderData rdat)
|
||||
public void renderHere(Writer out, RenderData rdat) throws IOException
|
||||
{
|
||||
sbuf.append(url);
|
||||
out.write(contents);
|
||||
|
||||
} // end appendURL
|
||||
} // end renderHere
|
||||
|
||||
} // end class AbsoluteLeftMenuItem
|
||||
} // end class TextItem
|
||||
Loading…
x
Reference in New Issue
Block a user