Files
gf-core/src/runtime/javascript/minibar/minibar.js
2010-05-28 16:17:54 +00:00

410 lines
12 KiB
JavaScript

// minibar.js, assumes that support.js has also been loaded
/* --- Configuration -------------------------------------------------------- */
var default_server="http://www.grammaticalframework.org:41296"
var tree_icon=default_server+"/translate/se.chalmers.cs.gf.gwt.TranslateApp/tree-btn.png";
// default values for options:
var options={
server: default_server,
grammars_url: null, // if left null, start_minibar() fills in server+"/grammars/"
grammar_list: null, // if left null, start_minibar() will fetch a list from the server
show_abstract: false,
show_trees: false,
show_grouped_translations: true,
delete_button_text: "⌫",
try_google: true
}
/* --- Grammar access object ------------------------------------------------ */
var server = {
// State variables (private):
current_grammar_url: options.grammars_url+"Foods.pgf",
// Methods:
switch_grammar: function(grammar_name) {
this.current_grammar_url=options.grammars_url+grammar_name;
},
get_grammarlist: function(cont_name) {
jsonp(options.grammars_url+"grammars.cgi",cont_name);
},
get_languages: function(cont_name) {
jsonp(this.current_grammar_url,cont_name);
},
get_random: function(cont_name) {
jsonp(this.current_grammar_url+"?command=random&random="+Math.random(),cont_name);
},
linearize: function(tree,to,cont_name) {
jsonp(this.current_grammar_url+"?command=linearize&tree="
+encodeURIComponent(tree)+"&to="+to,cont_name)
},
complete: function(from,input,cont_name) {
jsonp(this.current_grammar_url
+"?command=complete"
+"&from="+encodeURIComponent(from)
+"&input="+encodeURIComponent(input),
cont_name);
},
translate: function(from,input,cont_name) {
jsonp(this.current_grammar_url
+"?command=translate"
+"&from="+encodeURIComponent(from)
+"&input="+encodeURIComponent(input),
cont_name)
},
translategroup: function(from,input,cont_name) {
jsonp(this.current_grammar_url
+"?command=translategroup"
+"&from="+encodeURIComponent(from)
+"&input="+encodeURIComponent(input),
cont_name)
}
};
/* --- Initialisation ------------------------------------------------------- */
function start_minibar(opts) { // typically called when the HTML document is loaded
if(opts) for(var o in opts) options[o]=opts[o];
var surface=div_id("surface");
//surface.setAttribute("onclick","add_typed_input(this)");
appendChildren(element("minibar"),
[div_id("menubar"),
surface,
div_id("words"),
div_id("translations")]);
if(!options.grammars_url) options.grammars_url=options.server+"/grammars/";
if(options.grammar_list) show_grammarlist(options.grammar_list)
else server.get_grammarlist("show_grammarlist");
}
/* --- Functions ------------------------------------------------------------ */
function show_grammarlist(grammars) {
var menubar=element("menubar");
menubar.innerHTML="";
if(grammars.length>1) {
var menu=empty("select");
for(var i=0;i<grammars.length;i++) {
var opt=empty("option");
opt.setAttribute("value",grammars[i]);
opt.innerHTML=grammars[i];
menu.appendChild(opt);
}
menu.setAttribute("onchange","new_grammar(this)");
menubar.innerHTML="Grammar: ";
menubar.appendChild(menu);
}
appendChildren(menubar,
[text(" From: "), empty_id("select","language_menu"),
text(" To: "), empty_id("select","to_menu"),
button(options.delete_button_text,"delete_last()"),
button("Clear","clear_all()"),
button("Random","generate_random()")]);
select_grammar(grammars[0]);
}
function new_grammar(menu) {
select_grammar(menu.options[menu.selectedIndex].value);
}
function select_grammar(grammar_name) {
server.switch_grammar(grammar_name);
server.get_languages("show_languages");
}
function langpart(conc,abs) { // langpart("FoodsEng","Food") == "Eng"
return hasPrefix(conc,abs) ? conc.substr(abs.length) : conc;
}
function show_languages(grammar) {
var r="";
var lang=grammar.languages;
var menu=element("language_menu");
menu.setAttribute("onchange","new_language(this)");
menu.grammar=grammar;
menu.innerHTML="";
for(var i=0; i<lang.length; i++)
if(lang[i].canParse && !hasPrefix(lang[i].name,"Disamb"))
menu.appendChild(option(langpart(lang[i].name,grammar.name),""+i));
var to=element("to_menu");
to.langmenu=menu;
to.setAttribute("onchange","change_tolang(this)");
to.innerHMTL="";
to.appendChild(option("All","-1"));
for(var i=0; i<lang.length; i++)
if(!hasPrefix(lang[i].name,"Disamb"))
to.appendChild(option(langpart(lang[i].name,grammar.name),lang[i].name));
new_language(menu);
}
function new_language(menu) {
var ix=menu.options[menu.selectedIndex].value;
var langname=menu.grammar.languages[ix].name;
menu.current={from: langname, input: ""};
clear_all();
}
function change_tolang(to_menu) {
get_translations(to_menu.langmenu)
}
function clear_all1() {
var menu=element("language_menu");
menu.current.input="";
menu.previous=null;
var surface=element("surface");
surface.innerHTML="";
surface.typed=null;
element("translations").innerHTML="";
return menu;
}
function clear_all() {
get_completions(clear_all1());
}
function delete_last() {
var menu=element("language_menu");
if(menu.previous) {
menu.current.input=menu.previous.input;
menu.previous=menu.previous.previous;
var s=element("surface");
if(s.typed) {
s.removeChild(s.typed.previousSibling);
s.typed.focus();
}
else
s.removeChild(s.lastChild);
element("translations").innerHTML="";
get_completions(menu);
}
}
function add_typed_input(surface) {
if(surface.typed)
inp=surface.typed;
else {
var inp=empty("input","type","text");
//inp.setAttribute("onclick","return false;"); // Don't propagate click to surface
inp.setAttribute("onkeyup","complete_typed(this)");
inp.setAttribute("onchange","finish_typed(this)");
surface.appendChild(inp);
surface.typed=inp;
}
inp.focus();
}
function remove_typed_input(surface) {
if(surface.typed) {
surface.typed.parentNode.removeChild(surface.typed);
surface.typed=null;
}
}
function complete_typed(inp) {
var menu=element("language_menu");
var c=menu.current;
if(!inp.completing || inp.completing!=inp.value) {
inp.completing=inp.value;
server.complete(c.from,c.input+inp.value,"show_completions");
}
}
function finish_typed(inp) {
//alert("finish_typed "+inp.value);
var box=element("words");
var w=inp.value+" ";
if(box.completions.length==1)
add_word(box.completions[0]);
else if(elem(w,box.completions))
add_word(w);
}
function generate_random() {
server.get_random("lin_random");
}
function lin_random(abs) {
var menu=element("language_menu");
var lang=menu.current.from;
server.linearize(abs[0].tree,lang,"show_random");
}
function show_random(random) {
var menu=clear_all1();
var words=random[0].text.split(" ");
for(var i=0;i<words.length;i++)
add_word1(menu,words[i]+" ");
element("words").innerHTML="...";
get_completions(menu);
}
function get_completions(menu) {
var c=menu.current;
server.complete(c.from,c.input,"show_completions");
}
function word(s) {
//var w=div_class("word",text(s));
//w.setAttribute("onclick",'add_word("'+s+'")');
//return w;
return button(s,'add_word("'+s+'")');
}
function add_word1(menu,s) {
menu.previous={ input: menu.current.input, previous: menu.previous };
menu.current.input+=s;
var w=span_class("word",text(s));
var surface=element("surface");
if(surface.typed) {
surface.typed.value="";
surface.insertBefore(w,surface.typed);
}
else
surface.appendChild(w);
}
function add_word(s) {
var menu=element("language_menu");
add_word1(menu,s);
element("words").innerHTML="...";
get_completions(menu);
}
function show_completions(completions) {
var box=element("words");
var menu=element("language_menu");
var prefixlen=menu.current.input.length;
var emptycnt=0;
box.innerHTML="";
box.completions=[];
for(var i=0;i<completions.length;i++) {
var s=completions[i].text.substring(prefixlen);
box.completions[i]=s;
if(s.length>0) box.appendChild(word(s));
else emptycnt++;
}
if(emptycnt>0)
//setTimeout(function(){get_translations(menu);},200);
get_translations(menu);
var surface=element("surface");
if(surface.typed && emptycnt==completions.length) {
if(surface.typed.value=="") remove_typed_input(surface);
}
else add_typed_input(surface);
}
function get_translations(menu) {
var c=menu.current;
if(options.show_grouped_translations)
server.translategroup(c.from,c.input,"show_groupedtranslations");
else
server.translate(c.from,c.input,"show_translations");
}
function tdt(tree_btn,txt) {
return options.show_trees ? tda([tree_btn,txt]) : td(txt);
}
function show_translations(translations) {
var trans=element("translations");
var grammar=element("language_menu").grammar;
var to_menu=element("to_menu");
var to=to_menu.options[to_menu.selectedIndex].value
var cnt=translations.length;
trans.innerHTML="";
trans.appendChild(wrap("h3",text(cnt<1 ? "No translations?" :
cnt>1 ? ""+cnt+" translations:":
"One translation:")));
for(p=0;p<cnt;p++) {
var t=translations[p];
var lin=t.linearizations;
var tbody=empty("tbody");
if(options.show_abstract && t.tree)
tbody.appendChild(tr([th(text("Abstract: ")),
tdt(abstree_button(t.tree),text(" "+t.tree))]));
for(var i=0;i<lin.length;i++)
if(to=="-1" || lin[i].to==to)
tbody.appendChild(tr([th(text(langpart(lin[i].to,grammar.name)+": ")),
tdt(parsetree_button(t.tree,lin[i].to),
text(lin[i].text))]));
trans.appendChild(wrap("table",tbody));
}
try_google(grammar,trans,to);
}
function show_groupedtranslations(translations) {
var trans=element("translations");
var grammar=element("language_menu").grammar;
var to_menu=element("to_menu");
var to=langpart(to_menu.options[to_menu.selectedIndex].value,grammar.name);
var cnt=translations.length;
trans.innerHTML="";
for(p=0;p<cnt;p++) {
var t=translations[p];
if(to=="-1" || t.to==to) {
var lin=t.linearizations;
var tbody=empty("tbody");
if(to=="-1")
tbody.appendChild(tr([th(text(t.to+":"))]));
for(var i=0;i<lin.length;i++) {
tbody.appendChild(tr([(text(lin[i].text))]));
if (lin.length > 1) tbody.appendChild(tr([(text(lin[i].tree))]));
}
trans.appendChild(wrap("table",tbody));
}
}
try_google(grammar,trans,to);
}
function try_google(grammar,trans,to) {
if(options.try_google) {
var menu=element("language_menu");
var c=menu.current;
var url="http://translate.google.com/?sl="+langpart(c.from,grammar.name);
if(to!="-1") url+="&tl="+to;
url+="&q="+encodeURIComponent(c.input);
var link=empty("a","href",url);
link.innerHTML="Try this sentence in Google Translate";
trans.appendChild(link);
}
}
function abstree_button(abs) {
var i=img(tree_icon);
i.setAttribute("onclick","toggle_img(this)");
i.other=server.current_grammar_url+"?command=abstrtree&tree="+encodeURIComponent(abs);
return i;
}
function parsetree_button(abs,lang) {
var i=img(tree_icon);
i.setAttribute("onclick","toggle_img(this)");
i.other=server.current_grammar_url
+"?command=parsetree&from="+lang+"&tree="+encodeURIComponent(abs);
return i;
}
function toggle_img(i) {
var tmp=i.src;
i.src=i.other;
i.other=tmp;
}
/*
se.chalmers.cs.gf.gwt.TranslateApp/align-btn.png
GET /grammars/Foods.pgf?&command=abstrtree&tree=Pred+(This+Fish)+(Very+Fresh)
GET /grammars/Foods.pgf?&command=parsetree&tree=Pred+(This+Fish)+Expensive&from=FoodsAfr
GET /grammars/Foods.pgf?&command=alignment&tree=Pred+(This+Fish)+Expensive
*/