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BX.iterator = function(opts, nf){
this.parentConstruct(BX.iterator, opts);
BX.merge(this, {
opts: {
source: '/somewhere.php', // url to call to
interval: 1000, // call interval
dataType: 'json',
method: 'post',
loader: null,
waitAjaxOnStop: false,
whenHit: function(){return true} // what to do on a hit
},
vars: {
status: 'S',
running: false,
timeTag: false,
ajaxTag: false,
step: 0, // current step number
fields: {}, // current fields being sent on each hit
lastRequest: null,
lastResponce: null,
wasAborted: false
},
ctrls: { // links to controls
},
sys: {
code: 'iterator',
statuses: {
stopped: 'S',
stopping: 'I',
running: 'R'
}
}
});
this.handleInitStack(nf, BX.iterator, opts);
};
BX.extend(BX.iterator, BX.ui.widget); // may be BX.class or smth like that later
// the following functions can be overrided with inheritance
BX.merge(BX.iterator.prototype, {
// member of stack of initializers, must be defined even if do nothing
init: function(){
var sv = this.vars,
so = this.opts;
sv.loader = typeof so.loader != 'object' ? {show: BX.DoNothing, hide: BX.DoNothing} : so.loader;
this.fireEvent('set-status', [sv.status]);
},
start: function(fields){
var sv = this.vars;
if(sv.running) return;
sv.running = true;
sv.status = this.sys.statuses.running;
sv.fields = BX.clone(fields);
this.fireEvent('set-status', [sv.status]);
this.query();
},
stop: function(){
var sv = this.vars,
so = this.opts;
clearInterval(sv.timeTag);
if(so.waitAjaxOnStop){
sv.status = this.sys.statuses.stopping;
this.fireEvent('set-status', [sv.status]);
}else{
if(typeof(sv.ajaxTag) != 'undefined' && sv.ajaxTag.readyState < 4){
sv.wasAborted = true;
sv.ajaxTag.abort();
}
this.stopIterator();
}
},
refineRequest: function(request){
return request;
},
refineResponce: function(responce, request){
return responce;
},
getStatus: function(){
return this.vars.status;
},
getIsRunning: function(){
return this.vars.status == this.sys.statuses.running ||this.vars.status == this.sys.statuses.stopping;
},
// private
stopIterator: function(result){
var sv = this.vars;
sv.step = 0;
sv.running = false;
sv.status = this.sys.statuses.stopped;
this.fireEvent('set-status', [sv.status, result]);
},
query: function(){
var ctx = this,
so = this.opts,
sv = this.vars;
sv.loader.show();
this.fireEvent('before-ajax-call');
var request = BX.clone(sv.fields);
request.step = sv.step;
request.csrf = BX.bitrix_sessid();
sv.lastRequest = request;
sv.ajaxTag = BX.ajax({
url: so.source,
method: so.method,
dataType: so.dataType,
async: true,
processData: true,
emulateOnload: true,
start: true,
data: ctx.refineRequest(request),
//cache: true,
onsuccess: function(result){
sv.loader.hide();
if(sv.wasAborted)
return;
//try{
if(sv.status == ctx.sys.statuses.stopping){
ctx.stopIterator();
return;
}
result = ctx.refineResponce(result, request);
sv.lastResponce = result;
if(result.result){
sv.step++;
if(!so.whenHit.apply(ctx, [result, request])){
ctx.stopIterator(result);
}else if(sv.running)
sv.timeTag = setTimeout(function(){ctx.query()}, so.interval);
ctx.fireEvent('ajax-success');
}else{
ctx.stopIterator();
var errors = [];
if(typeof result.errors != 'undefined')
{
for(var k in result.errors)
if(result.errors.hasOwnProperty(k))
errors.push({message: result.errors[k]});
}
ctx.fireEvent('server-error', [errors]);
}
ctx.fireEvent('ajax-complete');
//}catch(e){console.dir(e);}
},
onfailure: function(msg, detail){
sv.loader.hide();
if(sv.wasAborted)
return;
ctx.stopIterator();
ctx.fireEvent('ajax-error', [{message: msg, detail: detail}]);
ctx.fireEvent('ajax-complete');
}
});
}
});