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swf_fu

With the swf_fu plugin, rails treats your swf files like any other asset (images, javascripts, etc…).

swf_fu (pronounced “swif-fu”, bonus joke for french speakers) uses SWFObject 2.2 to embed swf objects in HTML and supports all its options. SWFObject 2 is such a nice library that Adobe now uses it as the official way to embed swf! SWFObject’s project can be found at code.google.com/p/swfobject

This version of swf_fu will only work with rails 3.1. No real tests have been done other than “getting it to work on my application”.

Install

As a gem:

[sudo] gem install swf_fu

In rails:

# Using bundler (Rails 3.1)
gem 'swf_fu', ‘>=1.3.4', :require => “swf_fu”

In Rails 3.1 add to your app/assets/javascript/application.js

//= require swfobject

For older versions of rails or without git, you can always download swf_fu from github and then install following theirs instructions.

Usage

Embedding in HTML

To embed a swf file, use swf_tag:

<%= swf_tag "i_like_flashing" %>

Exactly like images and javascripts, swf_tag will use swf_path to determine the path of the swf file; it will assume it is in /public/swfs/ unless specified otherwise and it will add the “.swf” extension automatically.

You can specify alternate content either with the options <q>:alt => “Get Flash!”</q> or you can use swf_tag as a block:

<% swf_tag "i_like_flashing" do %>
  Get Flash
<% end %>

Options

  • :id - the DOM id of the flash object element that is used to contain the Flash object; defaults to the name of the swf in source

  • :width, :height - the width & height of the Flash object. Defaults to “100%”. These could also specified using :size

  • :size - the size of the Flash object, in the form “400x300”.

  • :mode - Either :dynamic (default) or :static. Refer to SWFObject’s doc

  • :flashvars - a Hash of variables that are passed to the swf. Can also be a string like "foo=bar&hello=world". Defaults to {:id => the DOM id}

  • :parameters - a Hash of configuration parameters for the swf. See Adobe’s doc

  • :alt - HTML text that is displayed when the Flash player is not available. Defaults to a “Get Flash” image pointing to Adobe Flash’s installation page. This can also be specified as a block (see embedding section). In Rails 3, this text is assumed to be HTML, so there is no need to call html_safe on it.

  • :flash_version - the version of the Flash player that is required (e.g. “7” (default) or “8.1.0”)

  • :auto_install - a swf file that will upgrade flash player if needed (defaults to “expressInstall” which was installed by swf_fu)

  • :javascript_class - specify a javascript class (e.g. “MyFlash”) for your flash object. If it exists, the initialize method will be called.

  • :initialize - arguments to pass to the initialization method of your javascript class.

  • :div_id - the DOM id of the containing div itself. Defaults to "#{option[:id]}"_div

  • :switch_off_auto_hide_show - switch off SWFObject’s default hide/show behavior. SWFObject temporarily hides your SWF or alternative content until the library has decided which content to display. Defaults to nil.

You can override these default options with a global setting:

ActionView::Base.swf_default_options = {:mode => :static}   # All swf_tag will use the static mode by default

Javascript

swf_fu will add ‘swfobject’ to the list asssets. It should be included in the pages using the swf_tag. (see install instructions)

swf_path

swf_tag implements and relies on swf_path which behaves in a similar fashion to image_path, javascript_path, etc…:

swf_path("example")                            => /swfs/example.swf
swf_path("example.swf")                        => /swfs/example.swf
swf_path("fonts/optima")                       => /swfs/fonts/optima.swf
swf_path("/fonts/optima")                      => /fonts/optima.swf
swf_path("http://www.example.com/game.swf")    => http://www.example.com/game.swf

It takes into account the global setting asset_host, like any other asset:

ActionController::Base.asset_host = "http://assets.example.com"
image_path("logo.jpg")                         => http://assets.example.com/images/logo.jpg
swf_path("fonts/optima")                       => http://assets.example.com/swfs/fonts/optima.swf

Copyright © 2010 Marc-André Lafortune, released under the BSD license

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Rails plugin: treat your Adobe Flash swf files like any other asset (images, javascripts, etc...) and embed them using SWFObject 2.2

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