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"use strict";
/**
Requires that window.fossil has already been set up.
window.fossil.fetch() is an HTTP request/response mini-framework
similar (but not identical) to the not-quite-ubiquitous
window.fetch().
JS usages:
fossil.fetch( URI [, onLoadCallback] );
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"use strict";
/**
Requires that window.fossil has already been set up.
*/
(function(namespace){
const fossil = namespace;
/**
fetch() is an HTTP request/response mini-framework
similar (but not identical) to the not-quite-ubiquitous
window.fetch().
JS usages:
fossil.fetch( URI [, onLoadCallback] );
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Note that this routine may add properties to the 2nd argument, so
that instance should not be kept around for later use.
Returns this object, noting that the XHR request is asynchronous,
and still in transit (or has yet to be sent) when that happens.
*/
window.fossil.fetch = function f(uri,opt){
}/*f.onerror()*/
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Note that this routine may add properties to the 2nd argument, so
that instance should not be kept around for later use.
Returns this object, noting that the XHR request is asynchronous,
and still in transit (or has yet to be sent) when that happens.
*/
fossil.fetch = function f(uri,opt){
const F = fossil;
if(!f.onload){
f.onload = (r)=>console.debug('fossil.fetch() XHR response:',r);
}
if(!f.onerror){
f.onerror = function(e/*exception*/){
console.error("fossil.fetch() XHR error:",e);
if(e instanceof Error) F.error('Exception:',e);
else F.error("Unknown error in handling of XHR request.");
};
}
if(!f.parseResponseHeaders){
f.parseResponseHeaders = function(h){
const rc = {};
if(!h) return rc;
const ar = h.trim().split(/[\r\n]+/);
ar.forEach(function(line) {
const parts = line.split(': ');
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&& !(payload instanceof ArrayBuffer)
&& ('object'===typeof payload
|| payload instanceof Array)){
payload = JSON.stringify(payload);
opt.contentType = 'application/json';
}
}
const url=[F.repoUrl(uri,opt.urlParams)],
x=new XMLHttpRequest();
if('json'===opt.responseType){
/* 'json' is an extension to the supported XHR.responseType
list. We use it as a flag to tell us to JSON.parse()
the response. */
jsonResponse = true;
x.responseType = 'text';
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&& !(payload instanceof ArrayBuffer)
&& ('object'===typeof payload
|| payload instanceof Array)){
payload = JSON.stringify(payload);
opt.contentType = 'application/json';
}
}
const url=[f.urlTransform(uri,opt.urlParams)],
x=new XMLHttpRequest();
if('json'===opt.responseType){
/* 'json' is an extension to the supported XHR.responseType
list. We use it as a flag to tell us to JSON.parse()
the response. */
jsonResponse = true;
x.responseType = 'text';
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}
x.timeout = +opt.timeout || f.timeout;
if(undefined!==payload) x.send(payload);
else x.send();
return this;
};
window.fossil.fetch.beforesend = function(){};
window.fossil.fetch.aftersend = function(){};
window.fossil.fetch.timeout = 15000/* Default timeout, in ms. */;
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}
x.timeout = +opt.timeout || f.timeout;
if(undefined!==payload) x.send(payload);
else x.send();
return this;
};
/**
urlTransform() must refer to a function which accepts a relative path
to the same site as fetch() is served from and an optional set of
URL parameters to pass with it (in the form a of a string
("a=b&c=d...") or an object of key/value pairs (which it converts
to such a string), and returns the resulting URL or URI as a string.
*/
fossil.fetch.urlTransform = (u,p)=>fossil.repoUrl(u,p);
fossil.fetch.beforesend = function(){};
fossil.fetch.aftersend = function(){};
fossil.fetch.timeout = 15000/* Default timeout, in ms. */;
})(window.fossil);
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