Wide coverage demo web app: add link to Google Translate

src/www/js/wc.js

@@ -0,0 +1,90 @@
+var wc={}
+wc.f=document.forms[0]
+wc.e=element("extra")
+wc.p=element("pick")
+wc.translate=function() {
+    var f=wc.f, e=wc.e, p=wc.p
+    f.translate.disabled=true
+    f.output.value=""
+    wc.r=[]
+    wc.current=0
+    clear(e)
+    clear(p)
+
+    function show_error(msg) {
+	if(e) e.innerHTML=msg
+	else f.output.value="["+msg+"]"
+    }
+    function show_pick(i) { return function() { show_trans(i); return false; } }
+    function show_picks() {
+	clear(p)
+	for(var i=0;i<wc.r.length;i++) {
+	    p.appendChild(text(" "))
+	    var pick=text(i+1) // +"⃝"
+	    if(i!=wc.current) {
+		var pick=node("a",{href:"#"},[pick])
+		pick.onclick=pick.onmouseover=show_pick(i)
+	    }
+	    p.appendChild(span_class("pick",pick))
+	}
+	p.appendChild(wrap_class("small","pick",
+				 node("a",{href:wc.google_translate_url(),
+					   target:"google_translate"},
+				      [text("Google Translate")])))
+    }
+    function show_trans(i) {
+	var r=wc.r[i]
+	f.output.value=r.text
+	if(e) e.innerHTML=r.prob+"<br>"+r.tree
+	wc.current=i
+	if(wc.p /*&& wc.r.length>1*/) show_picks()
+    }
+
+    function trans(text,i) {
+	function showit(result) {
+	    wc.r[i].text=result
+	    if(wc.current==i) show_trans(i)
+	    else show_picks()
+	    f.translate.disabled=false
+	    if(wc.p && i<9) trans(text,i+1)
+	}
+	function step3(trans) {
+	    if(trans.length>=1) {
+		if(trans[0].error) show_error(trans[0].error)
+		else {
+		    var r=wc.r[i]=trans[0]
+		    if(e && wc.current==i) e.innerHTML=r.prob+"<br>"+r.tree
+		    unlextext(r.linearizations[0].text,showit)
+		}
+	    }
+	    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) }
+    lextext(f.input.value,step2)
+    return false;
+}
+
+wc.swap=function() {
+    var f=wc.f
+    f.input.value=f.output.value;
+    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()
+}
+*/