asyncei - npm Package Compare versions

Comparing version 1.0.1 to 1.0.2

dist/asyncei.js

@@ -1,1 +0,124 @@
-!function c(u,i,a){function f(e,n){if(!i[e]){if(!u[e]){var t="function"==typeof require&&require;if(!n&&t)return t(e,!0);if(l)return l(e,!0);var r=new Error("Cannot find module '"+e+"'");throw r.code="MODULE_NOT_FOUND",r}var o=i[e]={exports:{}};u[e][0].call(o.exports,function(n){return f(u[e][1][n]||n)},o,o.exports,c,u,i,a)}return i[e].exports}for(var l="function"==typeof require&&require,n=0;n<a.length;n++)f(a[n]);return f}({1:[function(n,e,t){"use strict";Object.defineProperty(t,"__esModule",{value:!0});var o=function(){function r(n,e){for(var t=0;t<e.length;t++){var r=e[t];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(n,r.key,r)}}return function(n,e,t){return e&&r(n.prototype,e),t&&r(n,t),n}}();var r=function(){function r(n){var e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:function(n,e){n.innerHTML=e},t=2<arguments.length&&void 0!==arguments[2]?arguments[2]:"data-fetch";!function(n,e){if(!(n instanceof e))throw new TypeError("Cannot call a class as a function")}(this,r),this.fetchBlocks(n,e,t).then(function(){return document.dispatchEvent(new CustomEvent("allBlocksLoaded"))}).catch(function(n){return console.error("Asyncei",n)})}return o(r,[{key:"fetchBlocks",value:function(t,r,o){var c=this,u={};return document.querySelectorAll("["+o+"]").forEach(function(e){var n=e.getAttribute(o);u.hasOwnProperty(n)||(u[n]=fetch(t+n).then(function(n){return 200===n.status&&n.text().then(function(n){return c.fetchContent(n)})||console.error("Asyncei","Error fetching")}).catch(function(n){return console.error("Asyncei",n)})),u[n].then(function(n){r(e,n),e.dispatchEvent(new CustomEvent("blockContentLoaded",{bubbles:!0,detail:{content:n}}))}).catch(function(n){return console.error("Asyncei",n)})}),Promise.all(Object.values(u))}},{key:"fetchContent",value:function(e){try{return Promise.all(e.match(/<img\ssrc=["|']([^"|^']\S+)["|']/gi).map(function(r){return new Promise(function(n){var e=r.match(/src=["|']([^"|^']\S+)["|']/i)[1],t=new Image;t.onload=function(){return n()},t.onerror=function(){return n()},t.src=e})})).then(function(){return e})}catch(n){return e}}}]),r}();t.default=r},{}]},{},[1]);
+'use strict';
+
+Object.defineProperty(exports, "__esModule", {
+    value: true
+});
+
+var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+/**
+ * @class Asyncei
+ * @author Alfreds Genkins, Ilja Lapkovskis
+ * @version 0.0.1
+ */
+var Asyncei = function () {
+    /**
+    * Asynchronous block loading script
+    * @param {string} handlerURL URL to fetch blocks
+     * @param {function} renderFunction Function to render blocks
+    * @param {string} queryAttribute data attribute to query blocks
+    * @event allBlocksLoaded fires when all blocks are loaded
+    * @event blockContentLoaded fires when a block is loaded
+    */
+    function Asyncei(handlerURL) {
+        var renderFunction = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : function (element, text) {
+            element.innerHTML = text;
+        };
+        var queryAttribute = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 'data-fetch';
+
+        _classCallCheck(this, Asyncei);
+
+        this.fetchBlocks(handlerURL, renderFunction, queryAttribute).then(function () {
+            return document.dispatchEvent(new CustomEvent('allBlocksLoaded'));
+        }) // dispatch all elements load event
+        .catch(function (err) {
+            return console.error('Asyncei', err);
+        });
+    }
+
+    /**
+    * Fetch blocks (query & fetch content)
+    * @param {string} handlerURL 
+     * @param {function} renderFunction
+    * @param {string} queryAttribute
+    */
+
+
+    _createClass(Asyncei, [{
+        key: 'fetchBlocks',
+        value: function fetchBlocks(handlerURL, renderFunction, queryAttribute) {
+            var _this = this;
+
+            var renders = {}; // to collect all renders by key (for elements)
+
+            document.querySelectorAll('[' + queryAttribute + ']').forEach(function (element) {
+                var blockName = element.getAttribute(queryAttribute);
+
+                if (!renders.hasOwnProperty(blockName)) {
+                    // fetch content of the block if it is not present
+                    renders[blockName] = fetch(handlerURL + blockName).then(function (res) {
+                        return res.status === 200 && // if response status 200 – fetch content
+                        res.text().then(function (text) {
+                            return _this.fetchContent(text);
+                        }) || console.error('Asyncei', 'Error fetching');
+                    }).catch(function (err) {
+                        return console.error('Asyncei', err);
+                    });
+                }
+
+                renders[blockName].then(function (text) {
+                    renderFunction(element, text);
+                    element.dispatchEvent(new CustomEvent('blockContentLoaded', { // dispatch element content load event
+                        bubbles: true,
+                        detail: {
+                            content: text
+                        }
+                    }));
+                }).catch(function (err) {
+                    return console.error('Asyncei', err);
+                });
+            });
+
+            return Promise.all(Object.values(renders)); // return promise waiting for every element to resolve
+        }
+
+        /**
+        * Fetch content (lazy load images, before show)
+        * @param {string} text 
+        */
+
+    }, {
+        key: 'fetchContent',
+        value: function fetchContent(text) {
+            try {
+                // try matching regex
+                return Promise.all( // make a promise waiting for other promises to resolve
+                text.match(/<img\ssrc=["|']([^"|^']\S+)["|']/ig).map( // map regex to a promise
+                function (el) {
+                    return new Promise(function (resolve) {
+                        var imageSource = el.match(/src=["|']([^"|^']\S+)["|']/i)[1],
+                            fakeImage = new Image();
+
+                        fakeImage.onload = function () {
+                            return resolve();
+                        };
+                        fakeImage.onerror = function () {
+                            return resolve();
+                        };
+                        fakeImage.src = imageSource;
+                    });
+                })).then(function () {
+                    return text;
+                });
+            } catch (error) {
+                return text;
+            }
+        }
+    }]);
+
+    return Asyncei;
+}();
+
+exports.default = Asyncei;

package.json

 {
   "name": "asyncei",
-  "version": "1.0.1",
+  "version": "1.0.2",
   "description": "Pure JS, lighweight, asynchronous content loader",
@@ -5,0 +5,0 @@ "main": "dist/asyncei.js",

src/asyncei.js

 /**
  * @class Asyncei
  * @author Alfreds Genkins, Ilja Lapkovskis
- * @version 0.0.1
+ * @version 1.0.2
  */
@@ -6,0 +6,0 @@ class Asyncei {

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Dynamic require

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Minified code

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Improved metrics

Total package byte prevSize

10825

increased by37.09%

Lines of code

178

increased by143.84%

Number of low quality alerts

1

decreased by-50%

Number of low supply chain risk alerts

0

decreased by-100%

No dependency changes