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edx-platform
Commit bee04095 by cahrens
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Fix eslint violations.

parent b8ddf709
Showing with 48 additions and 40 deletions
common/lib/xmodule/xmodule/js/src/javascript_loader.js
// Generated by CoffeeScript 1.6.1
(function () {
this.JavascriptLoader = (function () {
(function() {
'use strict';
this.JavascriptLoader = (function() {
function JavascriptLoader() {
}
JavascriptLoader.executeModuleScripts = function (el, callback) {
var callbackCalled, completed, completionHandlerGenerator, completionHandlerGeneratorIE, i, loaded, placeholders,
_this = this;
if (callback == null) {
callback = null;
/**
* Set of library functions that provide common interface for javascript loading
* for all module types. All functionality provided by JavascriptLoader should take
* place at module scope, i.e. don't run jQuery over entire page.
*
* executeModuleScripts:
* Scan the module ('el') for "script_placeholder"s, then:
*
* 1) Fetch each script from server
* 2) Explicitly attach the script to the <head> of document
* 3) Explicitly wait for each script to be loaded
* 4) Return to callback function when all scripts loaded
*/
JavascriptLoader.executeModuleScripts = function(el, callback) {
var callbackCalled, completed, completionHandlerGenerator, loaded, placeholders;
if (!callback) {
callback = null; // eslint-disable-line no-param-reassign
}
placeholders = el.find(".script_placeholder");
placeholders = el.find('.script_placeholder');
if (placeholders.length === 0) {
if (callback != null) {
if (callback !== null) {
callback();
}
return;
return [];
}
completed = (function () {
var _i, _ref, _results;
_results = [];
for (i = _i = 1, _ref = placeholders.length; 1 <= _ref ? _i <= _ref : _i >= _ref; i = 1 <= _ref ? ++_i : --_i) {
_results.push(false);
// TODO: Verify the execution order of multiple placeholders
completed = (function() {
var i, ref, results;
results = [];
for (i = 1, ref = placeholders.length; ref >= 1 ? i <= ref : i >= ref; ref >= 1 ? ++i : --i) {
results.push(false);
}
return _results;
})();
return results;
}());
callbackCalled = false;
completionHandlerGeneratorIE = function (index) {
return function () {
if (this.readyState === 'complete' || this.readyState === 'loaded') {
return completionHandlerGenerator(index)();
}
};
};
completionHandlerGenerator = function (index) {
return function () {
var allComplete, flag, _i, _len;
completionHandlerGenerator = function(index) {
return function() {
var allComplete, flag, i, len;
allComplete = true;
completed[index] = true;
for (_i = 0, _len = completed.length; _i < _len; _i++) {
flag = completed[_i];
for (i = 0, len = completed.length; i < len; i++) {
flag = completed[i];
if (!flag) {
allComplete = false;
break;
......@@ -49,25 +53,31 @@
}
if (allComplete && !callbackCalled) {
callbackCalled = true;
if (callback != null) {
if (callback !== null) {
return callback();
}
}
return undefined;
};
};
// Keep a map of what sources we're loaded from, and don't do it twice.
loaded = {};
return placeholders.each(function (index, placeholder) {
return placeholders.each(function(index, placeholder) {
var s, src;
src = $(placeholder).attr("data-src");
// TODO: Check if the script already exists in DOM. If so, (1) copy it
// into memory; (2) delete the DOM script element; (3) reappend it.
// This would prevent memory bloat and save a network request.
src = $(placeholder).attr('data-src');
if (!(src in loaded)) {
loaded[src] = true;
s = document.createElement('script');
s.setAttribute('src', src);
s.setAttribute('type', "text/javascript");
s.setAttribute('type', 'text/javascript');
s.onload = completionHandlerGenerator(index);
s.onreadystatechange = completionHandlerGeneratorIE(index);
// Need to use the DOM elements directly or the scripts won't execute properly.
$('head')[0].appendChild(s);
} else {
// just call the completion callback directly, without reloading the file
completionHandlerGenerator(index)();
}
return $(placeholder).remove();
......@@ -75,7 +85,5 @@
};
return JavascriptLoader;
})();
}());
}).call(this);
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