echo_lazy_loader

EchoLazyLoader

Gem for lazily loading the images using Echo javascript library.

Installation

Add this line to your application's Gemfile:

gem 'echo_lazy_loader'

And then execute:

$ bundle install

Or install it yourself as:

$ gem install echo_lazy_loader

Usage

Add the following to your app/assets/javascripts/application.js:

//= require echo

To use minified version use this:

//= require echo.min

Use the following helper function instead of image_tag for images that you want to lazily load

echo_image_tag src, options

This function takes same parameters as the image_tag helper.

You will also have to call the following function ( prefereably in application layout ).

echo_init

If you want to apply lazy loading to images that donot show on scrolling but are swaped by some slider or filter layout , you can directly use this javascript code

<script type="text/javascript">
	Echo.render();
</script>

Configuration

you can use rails g echo_lazy_loader:config that will generate echo_lazy_loader.rb in project's initializer folder.

The configurable options ( with default values) are as follows.

default_image = "/assets/blankloading.gif"
offset= 100
throttle= 250

default_image is the path to the image which you want to show when the actual image is loading . offset and throttle are used by the Echo Library and has been explained in its documentation .

You can also pass the offset and throttle while calling echo_init. The values passed to the function will be used instead of those given in configuration file.

Contributors

• Kinaan Khan Sherwani ( [e-mail] )
• Usman Ali ( [e-mail])
• Ahmad Hussain ( [e-mail])

Contributing

• Fork it
• Create your feature branch (git checkout -b my-new-feature)
• Commit your changes (git commit -am 'Add some feature')
• Push to the branch (git push origin my-new-feature)
• Create new Pull Request