mirror of
https://github.com/GrammaticalFramework/gf-core.git
synced 2026-04-23 11:42:49 -06:00
8c9b90cc90
This is done by including a lin_action when starting the syntax editor from the minibar. Also: added some minibar options in the syntax editor for consistency...
569 lines
15 KiB
JavaScript
569 lines
15 KiB
JavaScript
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/* --- Input object --------------------------------------------------------- */
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function Input(server,translations,opts) { // Input object constructor
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var t=this
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t.server=server;
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t.translations=translations;
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// Default values for options:
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t.options={
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delete_button_text: "⌫",
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default_source_language: null,
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startcat_menu: true,
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random_button: true,
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word_replacements: false
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}
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// Apply supplied options
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if(opts) for(var o in opts) t.options[o]=opts[o];
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// User interface elements
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t.main=empty("div");
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t.menus=empty("span");
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t.buttons=empty("span");
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t.surface=div_id("surface");
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t.words=div_id("words");
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t.from_menu=empty("select");
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t.startcat_menu=empty("select")
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with(t) {
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appendChildren(main,[surface,words]);
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if(options.startcat_menu)
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appendChildren(menus,[text(" Startcat: "),startcat_menu])
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appendChildren(menus,[text(" From: "),from_menu])
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appendChildren(buttons,
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[button(options.delete_button_text,bind(delete_last,t),"H"),
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button("Clear",bind(clear_all,t),"L")]);
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if(options.random_button)
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buttons.appendChild(button("Random",bind(generate_random,t),"R"));
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var o=options;
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if(o.initial_grammar && o.initial && o.initial.from && o.initial.input)
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t.set_input_for(o.initial_grammar,o.initial.from,o.initial.input)
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}
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/* --- Input client state initialization --- */
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t.current={from: null, input: [] };
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t.from_menu.onchange=bind(t.change_language,t);
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t.startcat_menu.onchange=bind(t.change_startcat,t);
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}
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Input.prototype.change_grammar=function (grammar) {
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var t=this;
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grammar.browse={} // for caching output from the browse command
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t.grammar=grammar;
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t.local=mi_local(t.server.current_grammar_url)
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update_language_menu(t.from_menu,grammar);
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set_initial_language(t.options,t.from_menu,grammar,t.local.get("from"));
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t.update_startcat_menu(grammar)
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t.change_language();
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}
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Input.prototype.update_startcat_menu=function (grammar) {
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var menu=this.startcat_menu;
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menu.innerHTML="";
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var cats=grammar.categories;
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for(var cat in cats) menu.appendChild(option(cats[cat],cats[cat]))
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var startcat=this.local.get("startcat") || grammar.startcat;
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if(startcat) menu.value=startcat;
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else {
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insertFirst(menu,option("Default",""));
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menu.value="";
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}
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}
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Input.prototype.change_startcat=function () {
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this.local.put("startcat",this.startcat_menu.value)
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this.clear_all();
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}
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Input.prototype.change_language=function () {
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this.current.from=this.from_menu.value;
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this.local.put("from",this.current.from)
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var old_current=this.local.get("current");
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var new_input= old_current && old_current.from==this.current.from
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? old_current.input : []
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this.clear_all1();
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this.add_words(new_input)
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}
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Input.prototype.set_input_for=function(grammar_url,from,new_input) {
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var t=this
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var local=mi_local(grammar_url)
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local.put("from",from)
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local.put("current",{from:from,input:new_input})
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}
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Input.prototype.clear_all2=function() {
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with(this) {
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current.input=[];
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local.put("current",current)
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remove_surface_words()
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}
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}
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Input.prototype.clear_all1=function() {
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with(this) {
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remove_typed_input();
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clear_all2();
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translations.clear();
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}
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}
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Input.prototype.clear_all=function() {
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this.clear_all1();
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this.get_completions();
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}
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Input.prototype.get_completions=function() {
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with(this) {
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//debug("get_completions ");
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words.innerHTML="...";
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var s=gf_unlex(current.input)+" ";
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var args={from:current.from, input:s, cat:startcat_menu.value}
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server.complete(args,bind(show_completions,this));
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if(options.word_replacements) server.parse(args,bind(get_tree1,this));
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// Making two server calls in parallel! The two continuations can
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// be called in any order, make sure they are appropriately independent.
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}
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}
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Input.prototype.show_completions=function(complete_output) {
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var self=this;
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function switch_input(lin) {
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with(self) {
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local.put("current",{from:lin.to,input:lin.text.split(" ")})
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from_menu.value=lin.to;
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change_language()
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}
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}
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with(self) {
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//debug("show_completions ");
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var completions=complete_output[0].completions;
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var emptycnt=add_completions(completions)
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translations.translateFrom(current,startcat_menu.value,switch_input);
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if(surface.typed && emptycnt==completions.length) {
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if(surface.typed.value=="") remove_typed_input();
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}
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else add_typed_input();
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}
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}
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Input.prototype.add_completions=function(completions) {
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with(this) {
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if(words.timeout) clearTimeout(words.timeout),words.timeout=null;
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words.innerHTML="";
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words.completions=completions;
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words.word=[];
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var t=surface.typed ? surface.typed.value : "";
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var emptycnt=0;
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for(var i=0;i<completions.length;i++) {
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var s=completions[i];
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if(s.length>0) {
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var w=word(s);
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words.appendChild(w);
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words.word[i]=w;
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}
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else emptycnt++;
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}
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filter_completions(t,true);
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return emptycnt;
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}
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}
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Input.prototype.filter_completions=function(t,dim) {
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with(this) {
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if(words.timeout) clearTimeout(words.timeout),words.timeout=null;
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words.filtered=t;
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//if(dim) debug('filter "'+t+'"');
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var w=words.word;
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words.count=0;
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var dimmed=0;
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var prefix=""; // longest common prefix, for completion
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for(var i=0;i<w.length;i++) {
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var s=words.completions[i];
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var keep=hasPrefix(s,t);
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if(keep) {
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if(words.count==0) prefix=s;
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else prefix=(commonPrefix(prefix,s));
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words.count++;
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}
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if(dim) {
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w[i].style.opacity= keep ? "1" : "0.5";
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if(keep) w[i].style.display="inline";
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else dimmed++;
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}
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else
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w[i].style.display=keep ? "inline" : "none";
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}
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words.theword=prefix;
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if(dimmed>0)
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words.timeout=setTimeout(function(){ filter_completions(t,false)},1000);
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}
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}
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Input.prototype.add_typed_input=function() {
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with(this) {
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if(!surface.typed) {
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var inp=empty("input","type","text");
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inp.value="";
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inp.setAttribute("accesskey","t");
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inp.style.width="10em";
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inp.onkeyup=bind(complete_typed,this);
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surface.appendChild(inp);
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surface.typed=inp;
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inp.focus();
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}
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}
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}
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Input.prototype.remove_surface_words=function() {
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with(this) {
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var typed=surface.typed;
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if(typed) while(typed.previousSibling)
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surface.removeChild(typed.previousSibling)
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else clear(surface)
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}
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}
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Input.prototype.remove_typed_input=function() {
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with(this) {
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if(surface.typed) {
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surface.typed.parentNode.removeChild(surface.typed);
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surface.typed=null;
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}
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}
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}
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Input.prototype.complete_typed=function(event) {
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with(this) {
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//element("debug").innerHTML=show_props(event,"event");
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var inp=surface.typed;
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//debug('"'+inp.value+'"');
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var s=inp.value;
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var ws=s.split(" ");
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if(ws.length>1 || event.keyCode==13) {
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if(ws[0]!=words.filtered) filter_completions(ws[0],true);
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if(words.count==1) add_word(words.theword);
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else if(event.keyCode==13) add_word(ws[0]) // for literals
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else if(elem(ws[0],words.completions)) add_word(ws[0]);
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else if(words.theword.length>ws[0].length) inp.value=words.theword;
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}
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else if(s!=words.filtered) filter_completions(s,true)
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}
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}
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Input.prototype.generate_random=function() {
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var t=this;
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function show_random(random) {
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t.clear_all1();
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t.add_words(gf_lex(random[0].text));
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}
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function lin_random(abs) {
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t.server.linearize({tree:abs[0].tree,to:t.current.from},show_random);
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}
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t.server.get_random({cat:t.startcat_menu.value},lin_random);
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}
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Input.prototype.add_words=function(ws) {
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this.add_words1(ws);
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this.get_completions();
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}
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Input.prototype.add_words1=function(ws) {
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for(var i=0;i<ws.length;i++)
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if(ws[i]) this.add_word1(ws[i]);
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this.local.put("current",this.current)
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}
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Input.prototype.word=function(s) {
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var t=this;
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function click_word() {
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if(t.surface.typed) t.surface.typed.value="";
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t.add_word(s);
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}
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return button(s,click_word);
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}
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Input.prototype.add_word=function(s) {
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with(this) {
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add_word1(s);
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local.put("current",current)
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if(surface.typed) {
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var s2;
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if(hasPrefix(s2=surface.typed.value,s)) {
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s2=s2.substr(s.length);
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while(s2.length>0 && s2[0]==" ") s2=s2.substr(1);
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surface.typed.value=s2;
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}
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else surface.typed.value="";
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}
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get_completions();
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}
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}
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Input.prototype.add_word1=function(s) {
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with(this) {
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current.input.push(s);
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var w=span_class("word",text(s));
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surface.insertBefore(w,surface.typed);
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}
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}
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Input.prototype.delete_last=function() {
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with(this) {
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if(surface.typed && surface.typed.value!="")
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surface.typed.value="";
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else if(current.input.length>0) {
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current.input.pop();
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local.put("current",current)
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if(surface.typed) {
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surface.removeChild(surface.typed.previousSibling);
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surface.typed.focus();
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}
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else surface.removeChild(surface.lastChild);
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translations.clear();
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get_completions();
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}
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}
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}
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/* --- Structural editing --------------------------------------------------- */
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Input.prototype.get_tree1=function(parse) {
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var t=this;
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function proceed(lin) { t.get_tree2(lin,parse[0].trees[0]) }
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if(parse.length==1 && parse[0].from==t.current.from
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&& parse[0].trees && parse[0].trees.length==1)
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t.server.linearize({to:t.current.from,tree:parse[0].trees[0]},proceed);
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else t.end_structural_editing();
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}
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Input.prototype.get_tree2=function(lin,tree) {
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var t=this;
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with(t) {
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if(lin.length==1 && lin[0].to==current.from
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&& lin[0].text==gf_unlex(current.input)
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&& (lin[0].brackets)) {
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var bs=lin[0].brackets;
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//var tree=show_abstract_tree(bs);
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function proceed() { t.enable_structural_editing(bs,tree) }
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server.linearize({to:current.from,tree:tree},
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proceed,bind(end_structural_editing,t))
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}
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else end_structural_editing();
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}
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}
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Input.prototype.end_structural_editing=function() {
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var t=this;
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if(t.surface.structural_editing_enabled) {
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var ws=t.current.input;
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t.clear_all2()
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t.add_words1(ws);
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t.surface.structural_editing_enabled=false;
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}
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}
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Input.prototype.enable_structural_editing=function(brackets,tree) {
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var t=this;
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with(t) {
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var typed=surface.typed;
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function add_bs(b,parent) {
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if(b.token) {
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var fun=parent.fun,cat=parent.cat;
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function showrepl() { t.show_replacements(brackets,parent,tree)}
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var w= span_class("word editable",text(b.token));
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if(fun && cat) w.onclick=showrepl
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w.title=(fun||"_")+":"+(cat||"_")+" "+parent.fid+":"+parent.index
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surface.insertBefore(w,typed);
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}
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else b.children.map(function(c){add_bs(c,b)})
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}
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remove_surface_words()
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add_bs(brackets);
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t.surface.structural_editing_enabled=true;
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}
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}
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Input.prototype.show_replacements=function(brackets,parent,tree) {
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var fun=parent.fun,cat=parent.cat;
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var t=this;
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with(t) {
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function browse1(fun_info) {
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var fun_type = fun_info.def.split(":")[1];
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function browse2(cat_info) {
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var extb=null;
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function examine_replacement(rfun) {
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function browse3(rfun_info) {
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var rfun_type=rfun_info.def.split(":")[1];
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function replace() {
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t.replace_word(brackets,parent,rfun,tree);
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}
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function show_replacement(lin) {
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//console.log(lin)
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t.words.insertBefore(button(lin[0].text || rfun,replace),extb);
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}
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if(rfun_type==fun_type) {
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var tmpl=fun_template(rfun,rfun_type)
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if(tmpl)
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t.server.linearize({to:t.current.from,cat:cat,tree:tmpl},show_replacement)
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else
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t.words.insertBefore(button(rfun,replace),extb)
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}
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}
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t.browse(rfun,browse3)
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}
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var ps=cat_info.producers;
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clear(t.words);
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var extf=t.options.extend_grammar;
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if(extf) {
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function update() {
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console.log("update minibar")
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t.grammar.browse={}; // clear cache
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t.show_replacements(brackets,parent,tree)
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}
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extb=button("New "+cat+"...",
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function() { extf(cat,fun_type,update)})
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t.words.appendChild(extb)
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}
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if(ps)
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for(var pi in ps)
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if(ps[pi]!=fun) examine_replacement(ps[pi])
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}
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t.browse(cat,browse2)
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}
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t.browse(fun,browse1)
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}
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}
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Input.prototype.replace_word=function(brackets,parent,fun,tree) {
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var t=this;
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function proceed(tree) {
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//parent.fun=fun;
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//var tree=show_abstract_tree(brackets);
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tree=modify_tree(tree,parent.fid,fun)
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tree=show_tree(tree) // Convert JSON repr of tree back to string
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function replace(lin_output) {
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if(lin_output.length==1 && lin_output[0].to==t.current.from) {
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t.clear_all1();
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t.add_words(gf_lex(lin_output[0].text))
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}
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}
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function err(text,status,ctype) {
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t.words.innerHTML=
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ctype.split(";")[0]=="text/html"
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? text
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: "Word replacement failed"
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}
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t.server.linearize({to:t.current.from,tree:tree},replace,err)
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}
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// Convert the string representaiton of the abstract syntax tree to JSON:
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t.server.pgf_call("abstrjson",{tree:tree},proceed)
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}
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Input.prototype.browse=function(id,cont) {
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var t=this;
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if(t.grammar.browse[id]) cont(t.grammar.browse[id])
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else {
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function browsed(info) {
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t.grammar.browse[id]=info;
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cont(info);
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}
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t.server.browse({id:id},browsed);
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}
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}
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/* --- Auxiliary functions -------------------------------------------------- */
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function mi_local(grammar_url) {
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function dummy() {
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return {
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get: function(name,def) { return def },
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put: function(name,value) { }
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}
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}
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function real() {
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var prefix="gf.minibar_input."+grammar_url+"."
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return {
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get: function (name,def) {
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var id=prefix+name
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return localStorage[id] ? JSON.parse(localStorage[id]) : def;
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},
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put: function (name,value) {
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var id=prefix+name;
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localStorage[id]=JSON.stringify(value);
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}
|
|
}
|
|
}
|
|
return window.localStorage ? real() : dummy()
|
|
}
|
|
|
|
|
|
function set_initial_language(options,menu,grammar,old_from) {
|
|
var user_from=old_from || grammar.userLanguage;
|
|
if(user_from) menu.value=user_from; // !! What if the language was removed?
|
|
else if(options.default_source_language) {
|
|
for(var i=0;i<menu.options.length;i++) {
|
|
var o=menu.options[i].value;
|
|
var l=langpart(o,grammar.name);
|
|
if(l==options.default_source_language) menu.value=o;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
function show_abstract_tree(b) { return show_tree(abstract_tree(b)) }
|
|
|
|
function abstract_tree(b) {
|
|
return { fun:b.fun,children:abstract_trees(b.children) }
|
|
}
|
|
|
|
function abstract_trees(bs) {
|
|
var as=[];
|
|
for(var i in bs)
|
|
if(bs[i].fun) as.push(abstract_tree(bs[i]))
|
|
return as
|
|
}
|
|
*/
|
|
|
|
function show_tree(t) {
|
|
return t.children
|
|
? t.fun+" "+t.children.map(show_tree_atomic).join(" ")
|
|
: t.fun;
|
|
}
|
|
|
|
function show_tree_atomic(t) {
|
|
var s=show_tree(t);
|
|
return t.children && t.children.length>0 ? "("+s+")" : s
|
|
}
|
|
|
|
// Find the node labelled fid in tree and replace the function there with fun
|
|
function modify_tree(tree,fid,fun) {
|
|
if(tree.fun) {
|
|
if(tree.fid==fid) tree.fun=fun
|
|
else if(tree.children)
|
|
tree.children.map(function(t) { modify_tree(t,fid,fun) })
|
|
}
|
|
return tree;
|
|
}
|
|
|
|
function fun_template(fname,ftype) {
|
|
if(window.parse_fun) {
|
|
var fun=parse_fun(fname+" : "+ftype).ok
|
|
if(fun) {
|
|
var t=fname;
|
|
for(var i=1;i<fun.type.length;i++) t+=" ?"
|
|
return t;
|
|
}
|
|
}
|
|
return null;
|
|
}
|