Show More
flavoured_checkbox.js
71 lines
| 2.7 KiB
| application/javascript
|
JavascriptLexer
r1 | var FlavoredCheckbox = (function($) { | |||
"use strict"; | ||||
// makes Markdown FlavoredCheckbox interactive | ||||
// `container` is either a DOM element, jQuery collection or selector containing | ||||
// the Markdown content | ||||
// `retriever` is a function being passed the respective checkbox and a | ||||
// callback - the latter is expected to be called with the container's raw | ||||
// Markdown source | ||||
// `storer` is a function being passed the updated Markdown content, the | ||||
// respective checkbox and a callback | ||||
// both functions' are invoked with the respective `FlavoredCheckbox` instance as | ||||
// execution context (i.e. `this`) | ||||
// use like that:: | ||||
// var retriever = function(checkbox, callback) { | ||||
// var url = '/checkbox_update_url'; | ||||
// $.get(url, callback); | ||||
// } | ||||
// | ||||
// var storer = function(markdown_txt, checkbox, callback) { | ||||
// var url = '/checkbox_update_url'; | ||||
// $.ajax({ | ||||
// type: "put", | ||||
// url: url, | ||||
// data: markdown_txt, | ||||
// success: callback | ||||
// }); | ||||
// } | ||||
// new FlavoredCheckbox("article", retriever, storer); | ||||
function FlavoredCheckbox(container, retriever, storer) { | ||||
this.container = container.jquery ? container : $(container); | ||||
this.retriever = retriever; | ||||
this.storer = storer; | ||||
this._used_class = '.flavored_checkbox_list' | ||||
var checkbox_objects = $(this._used_class, container); | ||||
checkbox_objects.find(this.checkboxSelector).prop("disabled", false); | ||||
var self = this; | ||||
checkbox_objects.on("change", this.checkboxSelector, function() { | ||||
var args = Array.prototype.slice.call(arguments); | ||||
args.push(self); | ||||
self.onChange.apply(this, args); | ||||
}); | ||||
} | ||||
FlavoredCheckbox.prototype.checkboxSelector = "> li > input:checkbox"; | ||||
FlavoredCheckbox.prototype.onChange = function(ev, self) { | ||||
var checkbox = $(this).prop("disabled", true); | ||||
var index = $("ul" + self.checkboxSelector, self.container).index(this); | ||||
var reactivate = function() { checkbox.prop("disabled", false); }; | ||||
self.retriever(checkbox, function(markdown) { | ||||
markdown = self.toggleCheckbox(index, markdown); | ||||
self.storer(markdown, checkbox, reactivate); | ||||
}); | ||||
}; | ||||
FlavoredCheckbox.prototype.toggleCheckbox = function(index, markdown) { | ||||
var pattern = /^([*-]) \[([ x])\]/mg; // XXX: duplicates server-side logic!? | ||||
var count = 0; | ||||
return markdown.replace(pattern, function(match, prefix, marker) { | ||||
if(count === index) { | ||||
marker = marker === " " ? "x" : " "; | ||||
} | ||||
count++; | ||||
return prefix + " [" + marker + "]"; | ||||
}); | ||||
}; | ||||
return FlavoredCheckbox; | ||||
}(jQuery)); | ||||