/[pub]/test/html-webhacc/cc-script.js

Diff of /test/html-webhacc/cc-script.js

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-revision 1.10 by wakaba,
Sat Aug 16 07:42:20 2008 UTC
+revision 1.11 by wakaba,
Sat Aug 16 13:09:08 2008 UTC
 Line 191 
 function _showTab (sections, id) {
    }
  } // _showTab
- function getAncestorAnchorElement (e) {
+ function getAncestorElements (e) {
+   var ret = {};
    do {
      if (e.nodeName == 'A' || e.nodeName == 'AREA') {
-       return e;
+       ret.a = e;
+       if (ret.aside) {
+         return ret;
+       }
+     } else if (e.nodeName == 'ASIDE' || e.nodeName == 'aside') {
+       ret.aside = e;
+       if (ret.a) {
+         ret.aInAside = true;
+         return ret;
+       }
      }
      e = e.parentNode;
    } while (e);
- } // getAncestorAnchorElement
+   return ret;
+ } // getAncestorElements
+ function showHelp (id, context) {
+   if (document.webhaccHelp === undefined) {
+     loadHelp ('../error-description', function () {
+       _showHelp (id, context);
+     });
+     return true;
+   } else if (document.webhaccHelp === null) {
+     return false;
+   } else {
+     _showHelp (id, context);
+   }
+ } // showHelp
+ function loadHelp (url, code) {
+   document.webhaccHelp = null;
+   var iframe = document.createElement ('iframe');
+   var iframecode = function () {
+     var doc;
+     var docel;
+     try {
+       doc = iframe.contentWindow.document;
+       docel = doc.getElementById ('error-description');
+     } catch (e) { }
+     if (docel) {
+       document.webhaccHelp = doc;
+       code ();
+     } else if (url != '../error-description.en.html.u8') {
+       // doc would be a 406 error.
+       loadHelp ('../error-description.en.html.u8', code);
+       iframe.parentNode.removeChild (iframe);
+       /*
+         |iframe| is removed from the document after another |iframe|
+         is inserted by nested |loadHelp| call, otherwise Safari 3
+         would reuse(?) removed |iframe| and it sometimes (not always)
+         requests old URL even when another URL is set to the |src| attribute.
+       */
+     }
+     iframe.onreadystatechange = null;
+     iframe.onload = null;
+   };
+   iframe.onreadystatechange = function () {
+     if (this.readyState == 'complete') {
+       iframecode ();
+     }
+   };
+   iframe.onload = iframecode;
+   iframe.src = url;
+   document.body.appendChild (iframe);
+ } // loadHelp
+ function _showHelp (id, context) {
+   var helpDataEl = document.webhaccHelp.getElementById (id);
+   if (!helpDataEl) {
+     helpDataEl = document.webhaccHelp.getElementById ('help-not-available');
+     if (!helpDataEl) {
+       helpDataEl = document.createElement ('div');
+       helpDataEl.innerHTML = '<p>There is no help for this item available.';
+     }
+   }
+   if (id != 'help-not-available' &&
+       helpDataEl.getElementsByTagName ('p').length == 0) {
+     _showHelp ('help-not-available', context);
+     return;
+   }
+   var helpBox = document.createElement ('aside');
+   helpBox.className = 'help';
+   helpBox.innerHTML = helpDataEl.innerHTML; /* adoptNode + appendChild */
+   document.body.appendChild (helpBox);
+   var vp = document.documentElement;
+   if (vp.clientHeight < document.body.clientHeight) {
+     vp = document.body;
+     /*
+       |vp| is the element that is associated with the viewport.
+       In standard mode, the viewport element is the root element, i.e.
+       the |document.documentElement|.  However, in Opera 9, the viewport
+       element is the |body| element.  If the document element is not the
+       viewport element, its |clientHeight| takes less value than that
+       of the |body| element.  (I don't know whether this is always true.)
+     */
+   }
+   var left = context.x;
+   var top = context.y;
+   if (left > vp.clientWidth * 0.5) {
+     helpBox.style.left = '45%';
+   } else if (left < 10) {
+     helpBox.style.left = '10px';
+   } else {
+     helpBox.style.left = left + 'px';
+   }
+   if (top > vp.clientHeight - 100) {
+     helpBox.style.bottom = '10px';
+   } else if (top < 10) {
+     helpBox.style.top = '10px';
+   } else {
+     helpBox.style.top = top + 'px';
+   }
+   if (helpBox.offsetTop + helpBox.clientHeight > vp.clientHeight) {
+     helpBox.style.top = '50%';
+     helpBox.style.bottom = '10px';
+   }
+ } // _showHelp
+ function removeHelps () {
+   var asides = document.getElementsByTagName ('aside');
+   while (asides.length > 0) {
+     var aside = asides[0];
+     aside.parentNode.removeChild (aside);
+   }
+ } // removeHelps
  function onbodyclick (ev) {
-   var a = getAncestorAnchorElement (ev.target || ev.srcElement);
+   var aels = getAncestorElements (ev.target || ev.srcElement);
-   if (a) {
-     var href = a.getAttribute ('href');
+   if (!aels.aside) {
-     if (href && href.match (/^#/)) {
+     removeHelps ();
-       var id = decodeURIComponent (href.substring (1));
+   }
-       showTab (id);
-       return true;
+   if (aels.a) {
+     var href = aels.a.getAttribute ('href');
+     if (href) {
+       var m;
+       if (href.match (/^#/)) {
+         var id = decodeURIComponent (href.substring (1));
+         showTab (id);
+         return true;
+       } else if ((aels.a.rel == 'help' /* relList.has ('help') */) &&
+                  (m = href.match (/#(.+)$/) /* aels.a.hash, in fact... */)) {
+         var id = decodeURIComponent (m[1]);
+         showHelp (id, {x: ev.clientX, y: ev.clientY});
+         return false;
+       } else if (href.match (/^.\/#/)) {
+         var id = decodeURIComponent (href.substring (3));
+         showTab (id);
+         if (aels.aInAside) {
+           removeHelps ();
+         }
+         return true;
+       }
      }
    }
    return true;
  } // onbodyclick

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