Sha256: e93a0093b4ac363eb76e91aa78000e86e4de937540453c45ab435d83e31dd6fe
Contents?: true
Size: 1.53 KB
Versions: 6
Compression:
Stored size: 1.53 KB
Contents
# Global rendering buffer.
# Output capture functionality for ERb and Haml blocks.
#
module Aerogel::Render
module OutputBuffer
# Returns instance of a string buffer
#
def self.buffer
@buffer
end
# Sets instance of a string buffer
#
def self.buffer=( text )
@buffer = text
end
# Saves current buffer in a stack and creates a new empty one.
#
def self.push
@buffer_stack ||= []
@buffer_stack.unshift @buffer
@buffer = ''
end
# Returns current buffer contents as a string and restores previous
# buffer state from a stack.
#
def self.pop
result = @buffer
@buffer = @buffer_stack.shift
result
end
# Executes block and captures content rendered into buffer.
# If no content is rendered into buffer, returns block yield result as a content.
#
def self.capture(*args, &block)
self.push
blk_result = yield *args
buf_result = self.pop
buf_result.nil? || buf_result.empty? ? blk_result : buf_result
end
# Returns true if block is defined within a ERb template.
#
def self.block_is_erb?( block )
!@buffer.nil? || block && eval('defined? __in_erb_template', block.binding)
end
# Returns true if block is defined within a ERb template.
#
def self.block_is_haml?( block )
block && eval('block_is_haml?(self)', block.binding)
end
# Returns true if block is defined within any template.
#
def self.block_is_template?( block )
block && ( block_is_erb?(block) || block_is_haml?( block ) )
end
end # module OutputBuffer
end # module Aerogel::Render
Version data entries
6 entries across 6 versions & 1 rubygems