lazyimg - npm Package Compare versions

Comparing version 0.1.3 to 0.1.5

package.json

src/adapter.js

		/*
		lib-img-adpter
		Author: kongshi.wl@alibaba-inc.com
		Date: Dec,2015
		lazyimg
		Author: _danz
		*/
		@@ -31,2 +30,15 @@ ;

		function preLoadImg (src, loadCallback, errorCallback) {
		var img = new Image();
		img.src = src
		img.onload = loadCallback ? loadCallback.bind(img) : null
		img.onerror = errorCallback ? errorCallback.bind(img) : null
		}

		function dispatchEvent (item, type, data) {
		var evt = document.createEvent('CustomEvent')
		evt.initCustomEvent(type, false, false, data)
		item.dispatchEvent(evt)
		}

		function applySrc(item, processedSrc, placeholderSrc) {
		@@ -46,7 +58,12 @@ if (!processedSrc) {
		} else {
		var bgStr = 'url("' + processedSrc + '")';
		if (placeholderSrc) {
		bgStr += ',url("' + placeholderSrc + '")';
		}
		item.style.backgroundImage = bgStr;
		preLoadImg(processedSrc, function () {
		item.style.backgroundImage = 'url("' + processedSrc + '")';
		item.naturalWidth = this.width
		item.naturalHeight = this.height
		dispatchEvent(item, 'load')
		}, function () {
		preLoadImg(placeholderSrc, function () {
		item.style.backgroundImage = 'url("' + placeholderSrc + '")';
		})
		})
		}
		@@ -53,0 +70,0 @@ }

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