Class: BOB::Element

Inherits:
Object
  • Object
show all
Defined in:
lib/BOB/element.rb

Constant Summary collapse

@@data = 
nil

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(selector, options = nil, parent = nil, preBob = nil, contentBob = nil, postBob = nil) ⇒ Element

Returns a new instance of Element.



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# File 'lib/BOB/element.rb', line 39

def initialize (selector, options=nil, parent=nil, preBob=nil, contentBob=nil, postBob=nil)
	if selector.include?(" ")
		raise StandardError, "Invalid Element selector. \"" + selector.to_s + "\" contains \" \"(space). Only allowed is \"tag\", \"tag.class\", or \"tag#id\"."
	end

	@parent = parent

	#Flatting so Element.data gets parsed out to the correct thing.
	@options = {}
	if options
		options.each do |key, value|
			@options[key] = Element.toVariable(value)
		end
	end

	@preBob = preBob
	@innerBob = contentBob
	@postBob = postBob

	@type = selector
	@object_class = nil
	@object_id = nil
	@object_content = ""
	@object_style = nil

	if selector.include?(".")
		@type, @object_class = selector.split(".")
	elsif selector.include?("#")
		@type, @object_id = selector.split("#")
	end
end

Instance Attribute Details

#object_content ⇒ Object

Returns the value of attribute object_content.



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# File 'lib/BOB/element.rb', line 6

def object_content
  @object_content
end

#parent ⇒ Object

Returns the value of attribute parent.



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# File 'lib/BOB/element.rb', line 6

def parent
  @parent
end

Class Method Details

.d ⇒ Object 



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# File 'lib/BOB/element.rb', line 18

def self.d
	return @@data
end

.data ⇒ Object

TODO: this selects an existing element, and append/prepend/inserts into that



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# File 'lib/BOB/element.rb', line 12

def self.data
	return @@data
end

.data=(data) ⇒ Object 



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# File 'lib/BOB/element.rb', line 15

def self.data=(data)
	@@data = data
end

.find(selector) ⇒ Object 



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# File 'lib/BOB/element.rb', line 9

def self.find(selector)
	#TODO: this selects an existing element, and append/prepend/inserts into that
end

.get_or_create_bob(data, options, parent) ⇒ Object 



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# File 'lib/BOB/element.rb', line 21

def self.get_or_create_bob(data, options, parent)
	child_bob = nil
	if data.is_a?(Element)
		child_bob = data
	else
		child_bob = Element.new(data, options, parent)
	end
	return child_bob
end

.toVariable(data) ⇒ Object 



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# File 'lib/BOB/element.rb', line 31

def self.toVariable(data)
	if data.respond_to?(:call)
		return data.call
	else
		return data
	end
end

Instance Method Details

#a(data, options = nil) ⇒ Object 



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# File 'lib/BOB/element.rb', line 112

def a (data, options=nil)
	par = self
	par = @parent if @parent
	new_bob = Element.get_or_create_bob(data, options, par)
	if @postBob
		@postBob.a(new_bob)
	else
		@postBob = new_bob
	end
end

#append(data, options = nil) ⇒ Object 



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# File 'lib/BOB/element.rb', line 109

def append (data, options=nil)
	self.a(data, options)
end

#cl(object_class) ⇒ Object 



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# File 'lib/BOB/element.rb', line 89

def cl (object_class)
	@object_class = Element.toVariable(object_class)
	return self
end

#classs(object_class) ⇒ Object 



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# File 'lib/BOB/element.rb', line 86

def classs (object_class)
	self.cl(object_class)
end

#co(content) ⇒ Object 



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# File 'lib/BOB/element.rb', line 74

def co (content)
	child = self.i("")
	child.object_content = Element.toVariable(content)
	return self
end

#content(content) ⇒ Object 



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# File 'lib/BOB/element.rb', line 71

def content (content)
	self.co(content)
end

#d(dataset) ⇒ Object 



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# File 'lib/BOB/element.rb', line 138

def d (dataset)
	child_array = ChildArray.new(dataset, self)
	# @doData = dataset
	# @inDO = true
	return child_array
end

#do(dataset) ⇒ Object 



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# File 'lib/BOB/element.rb', line 135

def do (dataset)
	self.d(dataset)
end

#i(data, options = nil) ⇒ Object 



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# File 'lib/BOB/element.rb', line 100

def i (data, options=nil)
	child_bob = Element.get_or_create_bob(data, options, self)
	if @innerBob
		@innerBob.a(child_bob)
	else
		@innerBob = child_bob
	end
	return child_bob
end

#id(object_id) ⇒ Object 



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# File 'lib/BOB/element.rb', line 93

def id (object_id)
	@object_id = Element.toVariable(object_id)
	return self
end

#insert(data, options = nil) ⇒ Object 



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# File 'lib/BOB/element.rb', line 97

def insert (data, options=nil)
	self.i(data,options)
end

#p(data, options = nil) ⇒ Object 



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# File 'lib/BOB/element.rb', line 125

def p (data, options=nil)
	par = self
	par = @parent if @parent
	new_bob = Element.get_or_create_bob(data, options, par)
	if @preBob
		@preBob.p(new_bob)
	else
		@preBob = new_bob
	end
end

#pp ⇒ Object 



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# File 'lib/BOB/element.rb', line 153

def pp
	self.s(true)
end

#prepend(data, options = nil) ⇒ Object 



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# File 'lib/BOB/element.rb', line 122

def prepend (data, options=nil)
	self.p(data, options)
end

#prettyPrint ⇒ Object 



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# File 'lib/BOB/element.rb', line 150

def prettyPrint
	self.pp()
end

#s(pretty = false) ⇒ Object 



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# File 'lib/BOB/element.rb', line 159

def s (pretty = false)
	#this makes the toString bubble to the top if it is cast on a sub-element
	if @parent
		return @parent.s(pretty)
	end
	
	#kill parents so they will print out.
	@innerBob.parent = nil if @innerBob
	@preBob.parent     = nil if @preBob
	@postBob.parent    = nil if @postBob

	prepend = ''
	append = ''
	printself = ''
	content_b = ''

	content_b = @innerBob.s(pretty) if @innerBob
	prepend = @preBob.s(pretty) if @preBob
	append = @postBob.s(pretty) if @postBob
	#TODO: Make special case for img (or those without content?) and no-type tag, which is pure text content.
	
	if @type != ""
		printself += '<' + @type + ' '
		@options.each do |key, value|
			unless key == 'style' && @object_style || key == 'id' && @object_id || key == 'class' && @object_class
				printself << key.to_s() + '="' + value.to_s() + '" '
			end
		end
		
		printself << 'class="' + @object_class.to_s() + '" ' if @object_class
		printself << 'id="'    + @object_id.to_s()    + '" ' if @object_id
		printself << 'style="' + @object_style.to_s() + '" ' if @object_style

		printself = printself[0..-2]
		closable = (["area",
					"base",
					"br",
					"col",
					"embed",
					"hr",
					"img",
					"input",
					"keygen",
					"link",
					"menuitem",
					"meta",
					"param",
					"source",
					"track",
					"wbr",
					"basefont",
					"bgsound",
					"frame",
					"isindex"].include?(@type))

		if closable && content_b == ''
			printself << ' />'
		else	
			if pretty
				if content_b && content_b != ""
					content_b = "\n\t" +  content_b.gsub("\n", "\n\t").to_s() + "\n"
				else
					content_b = "\n"
				end
			end
			printself.to_s() << '>' + content_b.to_s() + '</' + @type.to_s() + '>'
		end
	else
		#pure text element (no type)
		printself = @object_content #it should not have any innerBob as it is never exposed when we are setting object_content
	end
	if pretty
		prepend =  prepend + "\n\t" if prepend && prepend != ""
		printself = printself.gsub("\n", "\n\t") if prepend && prepend != ""
		append = "\n" + append if append && append != ""
	end
			
	
	return prepend.to_s() + printself.to_s() + append.to_s()
end

#st(style) ⇒ Object 



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# File 'lib/BOB/element.rb', line 82

def st (style)
	@object_style = Element.toVariable(style)
	return self
end

#style(style) ⇒ Object 



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# File 'lib/BOB/element.rb', line 79

def style (style)
	self.st(style)
end

#toString ⇒ Object 



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# File 'lib/BOB/element.rb', line 156

def toString
	self.s()
end

#u ⇒ Object 



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# File 'lib/BOB/element.rb', line 147

def u
	@parent
end

#up ⇒ Object 



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# File 'lib/BOB/element.rb', line 144

def up
	@parent
end