66 lines
1.7 KiB
JavaScript
66 lines
1.7 KiB
JavaScript
(function() {
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'use strict';
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window.utils = window.utils || {};
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var registeredSetupListeners = {};
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/**
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* setup function to initiate a util (utilName) on a scope (sope) with options (options).
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*
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* Utils need to be defined as property of `window.utils` and need to accept a scope and (optionally) options.
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* Example: `window.utils.autoSubmit = function(scope, options) { ... };`
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*/
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window.utils.setup = function(utilName, scope, options) {
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if (!utilName || !scope) {
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return;
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}
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options = options || {};
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var listener = function(event) {
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if (event.detail.targetUtil !== utilName) {
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return false;
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}
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if (options.setupFunction) {
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options.setupFunction(scope, options);
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} else {
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var util = window.utils[utilName];
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if (!util) {
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throw new Error('"' + utilName + '" is not a known js util');
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}
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util(scope, options);
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}
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};
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if (registeredSetupListeners[utilName] && !options.singleton) {
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registeredSetupListeners[utilName].push(listener);
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} else {
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window.utils.teardown(utilName);
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registeredSetupListeners[utilName] = [ listener ];
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}
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document.addEventListener('setup', listener);
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document.dispatchEvent(new CustomEvent('setup', {
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detail: { targetUtil: utilName, module: 'none' },
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bubbles: true,
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cancelable: true,
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}));
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};
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window.utils.teardown = function(utilName) {
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if (registeredSetupListeners[utilName]) {
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registeredSetupListeners[utilName].forEach(function(listener) {
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document.removeEventListener('setup', listener);
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});
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delete registeredSetupListeners[utilName];
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}
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}
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})();
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