boxes_helper.rb
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module BoxesHelper
def box_decorator
@box_decorator || DontMoveBlocks
end
def with_box_decorator(dec, &block)
@box_decorator = dec
result = block.call
@box_decorator = DontMoveBlocks
result
end
def display_boxes_editor(holder)
with_box_decorator self do
content_tag('div', display_boxes(holder, '<' + _('Main content') + '>'), :id => 'box-organizer')
end
end
def display_boxes(holder, main_content)
boxes = holder.boxes.first(holder.boxes_limit)
content = boxes.reverse.map { |item| display_box(item, main_content) }.join("\n")
content = main_content if (content.blank?)
content_tag('div', content, :class => 'boxes', :id => 'boxes' )
end
def display_box(box, main_content)
content_tag('div', content_tag('div', display_box_content(box, main_content), :class => 'blocks'), :class => "box box-#{box.position}", :id => "box-#{box.id}" )
end
def display_updated_box(box)
with_box_decorator self do
display_box_content(box, '<' + _('Main content') + '>')
end
end
def display_box_content(box, main_content)
box.blocks.map { |item| display_block(item, main_content) }.join("\n") + box_decorator.block_target(box)
end
def display_block(block, main_content = nil)
content = block.main? ? main_content : block.content
result =
case content
when Hash
content_tag('iframe', '', :src => url_for(content))
when String
if content =~ /^https?:\/\//
content_tag('iframe', '', :src => content)
else
content
end
when Proc
self.instance_eval(&content)
else
raise "Unsupported content for block (#{content.class})"
end
classes = ['block', block.css_class_name ].uniq.join(' ')
box_decorator.block_target(block.box, block) + content_tag('div', result + box_decorator.block_edit_buttons(block), :class => classes, :id => "block-#{block.id}") + box_decorator.block_handle(block)
end
module DontMoveBlocks
# does nothing
def self.block_target(box, block = nil)
''
end
# does nothing
def self.block_handle(block)
''
end
def self.block_edit_buttons(block)
''
end
end
# generates a place where you can drop a block and get the block moved to
# there.
#
# If +block+ is not nil, then it means "place the dropped block before this
# one.". Otherwise, it means "place the dropped block at the end of the
# list"
#
# +box+ is always needed
def block_target(box, block = nil)
id =
if block.nil?
"end-of-box-#{box.id}"
else
"before-block-#{block.id}"
end
content_tag('div', ' ', :id => id, :class => 'block-target' ) + drop_receiving_element(id, :url => { :action => 'move_block', :target => id }, :accept => 'block', :hoverclass => 'block-target-hover')
end
# makes the given block draggable so it can be moved away.
def block_handle(block)
draggable_element("block-#{block.id}", :revert => true)
end
def block_edit_buttons(block)
buttons = []
buttons << icon_button(:up, _('Move block up'), { :action => 'move_block_up', :id => block.id }, { :method => 'post' }) unless block.first?
buttons << icon_button(:down, _('Move block down'), { :action => 'move_block_down' ,:id => block.id }, { :method => 'post'}) unless block.last?
if block.editor
buttons << lightbox_button(:edit, _('Edit'), block.editor)
end
content_tag('div', buttons.join("\n") + tag('br', :style => 'clear: left'), :class => 'button-bar')
end
def current_blocks
@controller.boxes_holder.boxes.map(&:blocks).flatten
end
def import_blocks_stylesheets
stylesheet_import( current_blocks.map{|b|'blocks/' + b.css_class_name}.uniq ) + "\n" +
stylesheet_import( current_blocks.map{|b|'blocks/' + b.css_class_name}.uniq, :themed_source => true )
end
end