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Fetch image original either from data-original, or content or contentUrl attr #252

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Fetch image original either from data-original, or content or contentUrl attr #252

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9760bc2
Fetch image original either from data, or a set attribute - Support f…
PMPP Mar 25, 2015
5d3e2e4
Update README
PMPP Mar 25, 2015
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11 changes: 11 additions & 0 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -29,6 +29,17 @@ $("img.lazy").lazyload();

This causes all images of class lazy to be lazy loaded.

If you have adopted microformats ([schema.org](https://schema.org/ImageObject)'s example):
```
<img class="lazy" itemprop="image" contentUrl="img/example.jpg" width="640" height="480">
```

then in your code do:

```
$("img.lazy").lazyload({attribute: "contentUrl"});
```

More information on [Lazy Load](http://www.appelsiini.net/projects/lazyload) project page.

## Install
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10 changes: 8 additions & 2 deletions jquery.lazyload.js
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Expand Up @@ -26,6 +26,7 @@
effect : "show",
container : window,
data_attribute : "original",
attribute : "contentUrl",
skip_invisible : false,
appear : null,
load : null,
Expand Down Expand Up @@ -57,6 +58,10 @@

}

function getOriginal($e) {
return $e.attr("data-" + settings.data_attribute) || $e.attr(settings.attribute);
}

if(options) {
/* Maintain BC for a couple of versions. */
if (undefined !== options.failurelimit) {
Expand Down Expand Up @@ -98,14 +103,15 @@
/* When appear is triggered load original image. */
$self.one("appear", function() {
if (!this.loaded) {
var original = getOriginal($self);

if (settings.appear) {
var elements_left = elements.length;
settings.appear.call(self, elements_left, settings);
}
$("<img />")
.bind("load", function() {

var original = $self.attr("data-" + settings.data_attribute);
$self.hide();
if ($self.is("img")) {
$self.attr("src", original);
Expand All @@ -127,7 +133,7 @@
settings.load.call(self, elements_left, settings);
}
})
.attr("src", $self.attr("data-" + settings.data_attribute));
.attr("src", original);
}
});

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