minibar: add tool tips to some of the buttons

Also move the functions title and attr from editor/editor.js to js/support.js.
Also mention recent changes in minibar/about.html.

src/www/gfse/editor.js

@@ -1908,12 +1908,6 @@ function table(rows) { return wrap("table",rows); }
 function td_right(cs) { return node("td",{"class":"right"},cs); }
 function td_center(cs) { return node("td",{"class":"center"},cs); }
 function jsurl(js) { return "javascript:"+js; }
-function title(t,n) { return attr({title:t},n) }
-
-function attr(as,n) {
-    for(var a in as) n.setAttribute(a,as[a]);
-    return n
-}
 
 /* -------------------------------------------------------------------------- */
 

src/www/js/support.js

@@ -160,12 +160,16 @@ function encodeArgs(args) {
 function text(s) { return document.createTextNode(s); }
 
 function node(tag,as,ds) {
-    var n=document.createElement(tag);
+    var n=attr(as,document.createElement(tag));
-    for(var a in as) n.setAttribute(a,as[a]);
     if(ds) for(var i in ds) n.appendChild(ds[i]);
     return n;
 }
 
+function attr(as,n) {
+    for(var a in as) n.setAttribute(a,as[a]);
+    return n
+}
+
 function empty(tag,name,value) {
     var el=node(tag,{},[])
     if(name && value) el.setAttribute(name,value);
@@ -221,6 +225,8 @@ function tda(cs) { return node("td",{},cs); }
 
 function img(src) { return empty("img","src",src); }
 
+function title(t,n) { return attr({title:t},n) }
+
 /* --- Document modification ------------------------------------------------ */
 
 function clear(el) { replaceInnerHTML(el,""); }

src/www/minibar/about.html

@@ -214,11 +214,14 @@ Some implementation details:
  <li>[Added 2012-04-18] Added buttons to use generated translations as input.
    (This functionality is available in the original Fridge Poetry, but has
    been missing in Minibar, until now.)
+ <li>[Added 2012-11-23] Added support for switching back and forth between the
+     minibar and the new syntax tree editor. The default configuration in
+     <code>minibar_online.js</code> shows how to enable it.
 </ul>
 
 <hr>
 <div class=modtime><small>
-<!-- hhmts start -->Last modified: Tue Nov 27 15:02:49 CET 2012 <!-- hhmts end -->
+<!-- hhmts start -->Last modified: Thu Nov 29 17:02:43 CET 2012 <!-- hhmts end -->
 </small></div>
 <address>
 <a href="http://www.cse.chalmers.se/~hallgren/">TH</a>

src/www/minibar/minibar.js

@@ -101,7 +101,7 @@ Minibar.prototype.show_grammarlist=function(dir,grammar_names,dir_count) {
 	    if(t.timeout) clearTimeout(t.timeout),t.timeout=null;
 	    if(t.grammar_menu.length>1 && !t.grammar_menu.parentElement) {
     		t.grammar_menu.onchange=pick;
-		insertFirst(t.menubar,button("i",bind(t.show_grammarinfo,t)))
+		insertFirst(t.menubar,title("Show grammar info",button("i",bind(t.show_grammarinfo,t))))
 		insertFirst(t.menubar,t.grammar_menu);
 		insertFirst(t.menubar,text("Grammar: "));
 	    }

src/www/minibar/minibar_input.js

@@ -33,7 +33,7 @@ function Input(server,translations,opts) { // Input object constructor
 	    appendChildren(menus,[text(" Startcat: "),startcat_menu])
 	appendChildren(menus,[text(" From: "),from_menu])
 	appendChildren(buttons,
-		       [button(options.delete_button_text,bind(delete_last,t),"H"),
+		       [title("Delete last word",button(options.delete_button_text,bind(delete_last,t),"H")),
 			button("Clear",bind(clear_all,t),"L")]);
 	if(options.random_button)
 	    buttons.appendChild(button("Random",bind(generate_random,t),"R"));

src/www/minibar/minibar_translations.js

@@ -106,7 +106,8 @@ Translations.prototype.show_translations=function(translationResults) {
 			    self.options.abstract_action(t.tree)
 			}
 			var abs_hdr = options.abstract_action 
-		                      ? button("Abstract",abs_act)
+		                      ? title("Edit the syntax tree",
+				              button("Abstract",abs_act))
 			              : text("Abstract: ")
 			tbody.appendChild(
 			    tr([th(abs_hdr),
@@ -122,7 +123,8 @@ Translations.prototype.show_translations=function(translationResults) {
 			if(to=="All" || lin[i].to==to) {
 			    var langcode=langpart(lin[i].to,grammar.name)
 		          //var hdr=text(langcode+": ")
-			    var hdr=button(langcode,act(lin[i]))
+			    var hdr=title("Switch input language to "+langcode,
+					  button(langcode,act(lin[i])))
 			    //hdr.disabled=lin[i].to==current.from
 			    var btn=parsetree_button(t.tree,lin[i].to)
 			    tbody.appendChild(tr([th(hdr),