86c9f53c2d
We originally wrote `undefined` in CoffeeScript. CoffeeScript compiled it to `void 0` when generating the JavaScript files. However, the reason to do so was the `undefined` variable was mutable before ECMAScript 5. Using `undefined` is more intuitive, and nowadays there's no reason to use `void 0`.
33 lines
992 B
JavaScript
33 lines
992 B
JavaScript
(function() {
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"use strict";
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App.WatchFormChanges = {
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forms: function() {
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return $("form[data-watch-changes]");
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},
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msg: function() {
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return $("[data-watch-form-message]").data("watch-form-message");
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},
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hasChanged: function() {
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return App.WatchFormChanges.forms().is(function() {
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return $(this).serialize() !== $(this).data("watchChanges");
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});
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},
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checkChanges: function() {
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if (App.WatchFormChanges.hasChanged()) {
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return confirm(App.WatchFormChanges.msg());
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} else {
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return true;
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}
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},
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initialize: function() {
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if (App.WatchFormChanges.forms().length === 0 || App.WatchFormChanges.msg() === undefined) {
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return;
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}
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$(document).off("page:before-change").on("page:before-change", App.WatchFormChanges.checkChanges);
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App.WatchFormChanges.forms().each(function() {
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$(this).data("watchChanges", $(this).serialize());
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});
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}
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};
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}).call(this);
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