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var wc={}
wc.cnl="Phrasebook" // try this controlled natural language first
wc.f=document.forms[0]
wc.o=element("output")
wc.e=element("extra")
wc.p=element("pick")
wc.serial=0
wc.os=[]
wc.delayed_translate=function() {
function restart(){ if(wc.f.input.value!=wc.translating) wc.translate() }
if(wc.timer) clearTimeout(wc.timer);
wc.timer=setTimeout(restart,500)
var h=wc.f.input.scrollHeight,bh=document.body.clientHeight
if(h>bh) h=bh
if(wc.f.input.clientHeight<h) wc.f.input.style.height=h+15+"px"
}
wc.translate=function() {
var current= ++wc.serial
var f=wc.f, e=wc.e, p=wc.p
var selected= -1
function disable(yes) {
f.translate.disabled=yes
f.to.disabled=yes
if(f.swap) f.swap.disabled=yes
}
disable(true)
clear(wc.o)
wc.os=[]
clear(e)
clear(p)
function split_punct(s) {
return s.split(/([.!?]+[ \t\n]+|\n\n+|[ \t\n]*[-•*+#]+[ \t\n]+)/)
}
function trans_quality(r) {
var text=r.text
if(r.prob==0) return {quality:"high_quality",text:text}
else {
var quality="default_quality"
switch(text[0]) {
case '+': text=text.substr(1); quality="high_quality"; break;
case '*': text=text.substr(1); quality="low_quality"; break;
default:
if(r.tree[0]=="?") quality="low_quality"
}
if(text[0]==" ") text=text.substr(1)
return {quality:quality,text:text}
}
}
function translate_segment(si) {
var rs=[]
var current_pick=0
var get_more
var output=wc.os[si].target
function show_error(msg) {
//if(e) e.innerHTML="<span class=low_quality>Translation problem: "+msg+"</span>"
//else
{
replaceChildren(output,text("["+msg+"]"))
output.className="error"
}
disable(false)
}
function show_pick(i) { return function() { show_trans(i); return false; } }
function show_picks() {
clear(p)
for(var i=0;i<rs.length;i++) {
p.appendChild(text(" "))
var pick=text(i+1) // +"⃝"
if(i!=current_pick) {
var pick=node("a",{href:"#"},[pick])
pick.onclick=pick.onmouseover=show_pick(i)
}
var q=trans_quality(rs[i]).quality
p.appendChild(span_class("pick "+q,pick))
}
/*
p.appendChild(wrap_class("small","pick",
node("a",{href:wc.google_translate_url(),
target:"google_translate"},
[text("Google Translate")])))
*/
}
function show_more() {
selected=si
var r=rs[current_pick]
if(e) e.innerHTML=(r.prob||"")+"<br>"+r.tree
if(wc.p /*&& rs.length>1*/) show_picks()
//if(f.speak.checked) wc.speak(t.text,f.to.value)
if(get_more) {
var f=get_more
get_more=null
f()
}
}
output.onclick=show_more
function show_trans(i) {
var r=rs[i]
var t=trans_quality(r)
replaceChildren(output,text(t.text))
wc.os[si].text=t.text
output.className=t.quality
current_pick=i
if(selected==si) show_more()
}
function showit(r,text) {
text=text.trimRight()
rs.push(r)
var j=rs.length-1
rs[j].text=text
if(current_pick==j) show_trans(j)
else if(selected==si) show_picks()
disable(false)
}
function trans(text,i) {
function step3(tra) {
if(wc.serial==current) {
if(tra.length>=1) {
var r=tra[0]
if(r.error!=undefined) show_error(tra[0].error)
else if(r.linearizations) {
r.text=r.linearizations[0].text
unlextext(r.text,function(text){showit(r,text)})
if(wc.p && i<9) {
if(si==selected) trans(text,i+1)
else get_more=function() { trans(text,i+1) }
}
}
else show_error("no linearizations")
}
else if(i==0) show_error("Unable to translate")
}
}
gftranslate.translate(text,f.from.value,f.to.value,i,1,step3)
}
function step2(text) { trans(text,0) }
function step2cnl(text) {
function step3cnl(results) {
var trans=results[0].translations
if(trans && trans.length>=1) {
var r=trans[0]
r.text=r.linearizations[0].text
r.prob=0
unlextext(r.text,function(text){showit(r,text)})
}
step2(text)
}
wc.pgf_online.translate({from:wc.cnl+f.from.value,
to:wc.cnl+f.to.value,
input:text},
step3cnl,
function(){step2(text)})
}
lextext(is[si],wc.cnl ? step2cnl : step2)
}
wc.translating=f.input.value
var is=wc.is=split_punct(wc.translating+"\n")
for(var i=0;i<is.length;i++) {
wc.os[i]={text:is[i]}
if(i&1) { // punctuation
wc.o.appendChild(span_class("punct",text(is[i])))
}
else { // segment
var o=wc.os[i].target=span_class("placeholder",text(is[i]))
wc.o.appendChild(o)
translate_segment(i)
}
}
return false;
}
wc.speak=function(text,lang) {
if(wc.speech) {
var u=new SpeechSynthesisUtterance(text)
u.lang=add_country(alangcode(lang))
speechSynthesis.cancel()
speechSynthesis.speak(u)
}
}
wc.swap=function() {
var f=wc.f
function txt(r) { return r.text }
f.input.value=wc.os.map(txt).join("").trimRight()
var from=f.from.value
f.from.value=f.to.value
f.to.value=from
wc.translate()
}
wc.google_translate_url=function() {
return "http://translate.google.com/"
+"#"+alangcode(wc.f.from.value)
+"/"+alangcode(wc.f.to.value)
+"/"+encodeURIComponent(wc.f.input.value)
}
/*
wc.try_google=function() {
var w=window.open(wc.google_translate_url(),
"google_translate")
w.focus()
}
*/
// Update language selection menus with the languages supported by the grammar
function init_languages() {
function init2(langs) {
var langset=toSet(langs)
function update_menu(m) {
var l=m.value
clear(m)
for(var i=0;i<langs.length;i++)
m.appendChild(option(concname(langs[i]),langs[i]))
if(langset[l]) m.value=l
}
update_menu(wc.f.from)
update_menu(wc.f.to)
}
gftranslate.get_languages(init2)
}
function init_speech() {
var speak=element("speak")
if(speak) {
wc.speech=window.speechSynthesis && window.speechSynthesis.getVoices().length>0
if(wc.speech) speak.style.display="inline"
}
}
init_languages()
init_speech()
setTimeout(init_speech,500) // A hack for Chrome.
if(wc.cnl) {
wc.pgf_online=pgf_online({});
wc.pgf_online.switch_grammar(wc.cnl+".pgf")
}
wc.f.input.focus()
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