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minibar_offline: Update the API exported by pgf_offline.js to be compatible with pgf_online.js

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This makes the minibar offline demo work again.
This commit is contained in:
hallgren
2012-04-30 13:53:55 +00:00
parent 82e1ee4a95
commit b57b7bdc4b
5 changed files with 116 additions and 6 deletions
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29
src/www/minibar/pgf_offline.js
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@@ -4,15 +4,22 @@ function pgf_offline(options) {
var server = {
// State variables (private):
grammars_url: "",
other_grammars_urls: [],
grammar_list: ["Foods.pgf"],
current_grammar_url: null,
pgf : null,
// Methods:
switch_grammar: function(grammar_url,cont) {
//debug("switch_grammar ");
var new_grammar_url=this.grammars_url+grammar_url;
this.switch_to_other_grammar(new_grammar_url,cont)
},
add_grammars_url: function(grammars_url,cont) {
this.other_grammars_urls.push(grammars_url);
if(cont) cont();
},
switch_to_other_grammar: function(new_grammar_url,cont) {
//debug("switch_grammar ");
var self=this;
var update_pgf=function(pgfbinary) {
debug("Got "+new_grammar_url+", length="
@@ -20,11 +27,25 @@ function pgf_offline(options) {
self.pgf = {v: Services_decodePGF.v({v:pgfbinary}) }
//debug("done")
self.current_grammar_url=new_grammar_url;
cont();
if(cont) cont();
}
ajax_http_get_binary(new_grammar_url,update_pgf);
},
get_grammarlist: function(cont) { cont([this.grammar_list]); },
get_grammarlist: function(cont,err) {
if(this.grammar_list) cont(this.grammar_list)
else http_get_json(this.grammars_url+"grammars.cgi",cont,err);
},
get_grammarlists: function(cont,err) { // May call cont several times!
var ds=this.other_grammars_urls;
var n=1+ds.length;
function pair(dir) {
return function(grammar_list){cont(dir,grammar_list,n)}
}
function ignore_error(err) { console.log(err) }
this.get_grammarlist(pair(this.grammars_url),err)
for(var i in ds)
http_get_json(ds[i]+"grammars.cgi",pair(ds[i]),ignore_error);
},
get_languages: function(cont) {
cont(fromJSValue(Services_grammar.v(this.pgf)))