JavaScript IF/UNLESS blocks support
This plugin introduces support for IF/UNLESS blocks to Rails’ javascript generator.
Usage
Lets say you want to produce javascript that will execute blind_down visual effect to show some DOM element unless it is already visible. To accomplish this you need an IF block:
update_page do |page|
page << "if( !($('#{element_id}').visible()) ) {"
page.visual_effect :blind_down, element_id
page << "}"
end
Instead you can use if
method that this plugin provides:
update_page do |page|
page.unless "$('#{element_id}').visible()" do
page.visual_effect :blind_down, element_id
end
end
Also, you can make use of javascript element proxy in the expression:
update_page do |page|
page.unless page[element_id].visible do
page.visual_effect :blind_down, element_id
end
end
Download
Download it from rubyforge.org/projects/js-if-blocks/ or via Rails plug in script:
./script/plugin install svn://rubyforge.org/var/svn/js-if-blocks/trunk/js-if-blocks
Bugs & Feedback
If you encounter any bugs or has some feature proposal, feel free to email it to
[email protected].