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Added ActionView::Helpers::register_javascript/stylesheet_expansion t…

…o make it easier for plugin developers to inject multiple assets (closes #10350) [lotswholetime]

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@9016 5ecf4fe2-1ee6-0310-87b1-e25e094e27de
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1 parent 9d4fa7c commit e915379a102b5cecf0a9ffb26236dff3738d4dd7 @dhh dhh committed Mar 13, 2008
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2 actionpack/CHANGELOG
@@ -1,5 +1,7 @@
*SVN*
+* Added ActionView::Helpers::register_javascript/stylesheet_expansion to make it easier for plugin developers to inject multiple assets #10350 [lotswholetime]
+
* Fix nested parameter hash parsing bug. #10797 [thomas.lee]
* Allow using named routes in ActionController::TestCase before any request has been made. Closes #11273 [alloy]
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78 actionpack/lib/action_view/helpers/asset_tag_helper.rb
@@ -155,7 +155,8 @@ def javascript_path(source)
alias_method :path_to_javascript, :javascript_path # aliased to avoid conflicts with a javascript_path named route
JAVASCRIPT_DEFAULT_SOURCES = ['prototype', 'effects', 'dragdrop', 'controls'] unless const_defined?(:JAVASCRIPT_DEFAULT_SOURCES)
- @@javascript_default_sources = JAVASCRIPT_DEFAULT_SOURCES.dup
+ @@javascript_expansions = { :defaults => JAVASCRIPT_DEFAULT_SOURCES.dup }
+ @@stylesheet_expansions = {}
# Returns an html script tag for each of the +sources+ provided. You
# can pass in the filename (.js extension is optional) of javascript files
@@ -248,19 +249,49 @@ def javascript_include_tag(*sources)
expand_javascript_sources(sources).collect { |source| javascript_src_tag(source, options) }.join("\n")
end
end
+
+ # Register one or more javascript files to be included when <tt>symbol</tt>
+ # is passed to <tt>javascript_include_tag</tt>. This method is typically intended
+ # to be called from plugin initialization to register javascript files
+ # that the plugin installed in <tt>public/javascripts</tt>.
+ #
+ # ActionView::Helpers::AssetTagHelper.register_javascript_expansion :monkey => ["head", "body", "tail"]
+ #
+ # javascript_include_tag :monkey # =>
+ # <script type="text/javascript" src="/javascripts/head.js"></script>
+ # <script type="text/javascript" src="/javascripts/body.js"></script>
+ # <script type="text/javascript" src="/javascripts/tail.js"></script>
+ def self.register_javascript_expansion(expansions)
+ @@javascript_expansions.merge!(expansions)
+ end
+
+ # Register one or more stylesheet files to be included when <tt>symbol</tt>
+ # is passed to <tt>stylesheet_link_tag</tt>. This method is typically intended
+ # to be called from plugin initialization to register stylesheet files
+ # that the plugin installed in <tt>public/stylesheets</tt>.
+ #
+ # ActionView::Helpers::AssetTagHelper.register_stylesheet_expansion :monkey => ["head", "body", "tail"]
+ #
+ # stylesheet_link_tag :monkey # =>
+ # <link href="/stylesheets/head.css" media="screen" rel="stylesheet" type="text/css" />
+ # <link href="/stylesheets/body.css" media="screen" rel="stylesheet" type="text/css" />
+ # <link href="/stylesheets/tail.css" media="screen" rel="stylesheet" type="text/css" />
+ def self.register_stylesheet_expansion(expansions)
+ @@stylesheet_expansions.merge!(expansions)
+ end
# Register one or more additional JavaScript files to be included when
# <tt>javascript_include_tag :defaults</tt> is called. This method is
# typically intended to be called from plugin initialization to register additional
# .js files that the plugin installed in <tt>public/javascripts</tt>.
def self.register_javascript_include_default(*sources)
- @@javascript_default_sources.concat(sources)
+ @@javascript_expansions[:defaults].concat(sources)
end
-
+
def self.reset_javascript_include_default #:nodoc:
- @@javascript_default_sources = JAVASCRIPT_DEFAULT_SOURCES.dup
+ @@javascript_expansions[:defaults] = JAVASCRIPT_DEFAULT_SOURCES.dup
end
-
+
# Computes the path to a stylesheet asset in the public stylesheets directory.
# If the +source+ filename has no extension, .css will be appended.
# Full paths from the document root will be passed through.
@@ -534,28 +565,33 @@ def compute_stylesheet_paths(sources)
end
def expand_javascript_sources(sources)
- case
- when sources.include?(:all)
- all_javascript_files = Dir[File.join(JAVASCRIPTS_DIR, '*.js')].collect { |file| File.basename(file).split(".", 0).first }.sort
- sources = ((@@javascript_default_sources.dup & all_javascript_files) + all_javascript_files).uniq
-
- when sources.include?(:defaults)
- sources = sources[0..(sources.index(:defaults))] +
- @@javascript_default_sources.dup +
- sources[(sources.index(:defaults) + 1)..sources.length]
-
- sources.delete(:defaults)
- sources << "application" if file_exist?(File.join(JAVASCRIPTS_DIR, "application.js"))
+ if sources.include?(:all)
+ @@all_javascript_sources ||= Dir[File.join(JAVASCRIPTS_DIR, '*.js')].collect { |file| File.basename(file).split(".", 0).first }.sort
+ else
+ expanded_sources = sources.collect do |source|
+ determine_source(source, @@javascript_expansions)
+ end.flatten
+ expanded_sources << "application" if sources.include?(:defaults) && file_exist?(File.join(JAVASCRIPTS_DIR, "application.js"))
+ expanded_sources
end
-
- sources
end
def expand_stylesheet_sources(sources)
if sources.first == :all
- @@all_stylesheet_sources ||= Dir[File.join(STYLESHEETS_DIR, '*.css')].collect { |file| File.basename(file).split(".", 1).first }.sort
+ @@all_stylesheet_sources ||= Dir[File.join(STYLESHEETS_DIR, '*.css')].collect { |file| File.basename(file).split(".", 0).first }.sort
+ else
+ sources.collect do |source|
+ determine_source(source, @@stylesheet_expansions)
+ end.flatten
+ end
+ end
+
+ def determine_source(source, collection)
+ case source
+ when Symbol
+ collection[source] || raise(ArgumentError, "No expansion found for #{source.inspect}")
else
- sources
+ source
end
end
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26 actionpack/test/template/asset_tag_helper_test.rb
@@ -175,6 +175,22 @@ def test_register_javascript_include_default
assert_dom_equal %(<script src="/javascripts/prototype.js" type="text/javascript"></script>\n<script src="/javascripts/effects.js" type="text/javascript"></script>\n<script src="/javascripts/dragdrop.js" type="text/javascript"></script>\n<script src="/javascripts/controls.js" type="text/javascript"></script>\n<script src="/javascripts/slider.js" type="text/javascript"></script>\n<script src="/javascripts/lib1.js" type="text/javascript"></script>\n<script src="/elsewhere/blub/lib2.js" type="text/javascript"></script>\n<script src="/javascripts/application.js" type="text/javascript"></script>), javascript_include_tag(:defaults)
end
+ def test_custom_javascript_expansions
+ ActionView::Helpers::AssetTagHelper::register_javascript_expansion :monkey => ["head", "body", "tail"]
+ assert_dom_equal %(<script src="/javascripts/first.js" type="text/javascript"></script>\n<script src="/javascripts/head.js" type="text/javascript"></script>\n<script src="/javascripts/body.js" type="text/javascript"></script>\n<script src="/javascripts/tail.js" type="text/javascript"></script>\n<script src="/javascripts/last.js" type="text/javascript"></script>), javascript_include_tag('first', :monkey, 'last')
+ end
+
+ def test_custom_javascript_expansions_and_defaults_puts_application_js_at_the_end
+ ENV["RAILS_ASSET_ID"] = ""
+ ActionView::Helpers::AssetTagHelper::register_javascript_expansion :monkey => ["head", "body", "tail"]
+ assert_dom_equal %(<script src="/javascripts/first.js" type="text/javascript"></script>\n<script src="/javascripts/prototype.js" type="text/javascript"></script>\n<script src="/javascripts/effects.js" type="text/javascript"></script>\n<script src="/javascripts/dragdrop.js" type="text/javascript"></script>\n<script src="/javascripts/controls.js" type="text/javascript"></script>\n<script src="/javascripts/head.js" type="text/javascript"></script>\n<script src="/javascripts/body.js" type="text/javascript"></script>\n<script src="/javascripts/tail.js" type="text/javascript"></script>\n<script src="/javascripts/last.js" type="text/javascript"></script>\n<script src="/javascripts/application.js" type="text/javascript"></script>), javascript_include_tag('first', :defaults, :monkey, 'last')
+ end
+
+ def test_custom_javascript_expansions_with_undefined_symbol
+ ActionView::Helpers::AssetTagHelper::register_javascript_expansion :monkey => nil
+ assert_raise(ArgumentError) { javascript_include_tag('first', :monkey, 'last') }
+ end
+
def test_stylesheet_path
StylePathToTag.each { |method, tag| assert_dom_equal(tag, eval(method)) }
end
@@ -188,6 +204,16 @@ def test_stylesheet_link_tag
StyleLinkToTag.each { |method, tag| assert_dom_equal(tag, eval(method)) }
end
+ def test_custom_stylesheet_expansions
+ ActionView::Helpers::AssetTagHelper::register_stylesheet_expansion :monkey => ["head", "body", "tail"]
+ assert_dom_equal %(<link href="/stylesheets/first.css" media="screen" rel="stylesheet" type="text/css" />\n<link href="/stylesheets/head.css" media="screen" rel="stylesheet" type="text/css" />\n<link href="/stylesheets/body.css" media="screen" rel="stylesheet" type="text/css" />\n<link href="/stylesheets/tail.css" media="screen" rel="stylesheet" type="text/css" />\n<link href="/stylesheets/last.css" media="screen" rel="stylesheet" type="text/css" />), stylesheet_link_tag('first', :monkey, 'last')
+ end
+
+ def test_custom_stylesheet_expansions_with_undefined_symbol
+ ActionView::Helpers::AssetTagHelper::register_stylesheet_expansion :monkey => nil
+ assert_raise(ArgumentError) { stylesheet_link_tag('first', :monkey, 'last') }
+ end
+
def test_image_path
ImagePathToTag.each { |method, tag| assert_dom_equal(tag, eval(method)) }
end

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