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refactor

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This commit is contained in:
Sam 2013-05-28 09:48:47 +10:00
parent d2f2a8e218
commit 88972b99a5
2 changed files with 91 additions and 83 deletions
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72
lib/excerpt_parser.rb Normal file
View File

@ -0,0 +1,72 @@
class ExcerptParser < Nokogiri::XML::SAX::Document
attr_reader :excerpt
def initialize(length,options)
@length = length
@excerpt = ""
@current_length = 0
@strip_links = options[:strip_links] == true
end
def self.get_excerpt(html, length, options)
me = self.new(length,options)
parser = Nokogiri::HTML::SAX::Parser.new(me)
catch(:done) do
parser.parse(html) unless html.nil?
end
me.excerpt
end
def start_element(name, attributes=[])
case name
when "img"
attributes = Hash[*attributes.flatten]
if attributes["alt"]
characters("[#{attributes["alt"]}]")
elsif attributes["title"]
characters("[#{attributes["title"]}]")
else
characters("[image]")
end
when "a"
unless @strip_links
c = "<a "
c << attributes.map{|k,v| "#{k}='#{v}'"}.join(' ')
c << ">"
characters(c, false, false, false)
@in_a = true
end
when "aside"
@in_quote = true
end
end
def end_element(name)
case name
when "a"
unless @strip_links
characters("</a>",false, false, false)
@in_a = false
end
when "p", "br"
characters(" ")
when "aside"
@in_quote = false
end
end
def characters(string, truncate = true, count_it = true, encode = true)
return if @in_quote
encode = encode ? lambda{|s| ERB::Util.html_escape(s)} : lambda {|s| s}
if count_it && @current_length + string.length > @length
length = [0, @length - @current_length - 1].max
@excerpt << encode.call(string[0..length]) if truncate
@excerpt << "&hellip;"
@excerpt << "</a>" if @in_a
throw :done
end
@excerpt << encode.call(string)
@current_length += string.length if count_it
end
end

102
lib/pretty_text.rb
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@ -1,5 +1,6 @@
require 'v8'
require 'nokogiri'
require_dependency 'excerpt_parser'
module PrettyText
@ -79,21 +80,20 @@ module PrettyText
@ctx["helpers"] = Helpers.new
@ctx.load(app_root + "app/assets/javascripts/external/md5.js")
@ctx.load(app_root + "app/assets/javascripts/external/Markdown.Converter.js")
@ctx.load(app_root + "app/assets/javascripts/external/twitter-text-1.5.0.js")
@ctx.load(app_root + "lib/headless-ember.js")
@ctx.load(app_root + "app/assets/javascripts/external/rsvp.js")
@ctx.load(Rails.configuration.ember.handlebars_location)
#@ctx.load(Rails.configuration.ember.ember_location)
ctx_load( "app/assets/javascripts/external/md5.js",
"app/assets/javascripts/external/Markdown.Converter.js",
"app/assets/javascripts/external/twitter-text-1.5.0.js",
"lib/headless-ember.js",
"app/assets/javascripts/external/rsvp.js",
Rails.configuration.ember.handlebars_location,
"app/assets/javascripts/external_production/sugar-1.3.5.js")
@ctx.load(app_root + "app/assets/javascripts/external_production/sugar-1.3.5.js")
@ctx.eval("var Discourse = {}; Discourse.SiteSettings = #{SiteSetting.client_settings_json};")
@ctx.eval("var window = {}; window.devicePixelRatio = 2;") # hack to make code think stuff is retina
@ctx.load(app_root + "app/assets/javascripts/discourse/components/bbcode.js")
@ctx.load(app_root + "app/assets/javascripts/discourse/components/utilities.js")
@ctx.load(app_root + "app/assets/javascripts/discourse/components/markdown.js")
ctx_load( "app/assets/javascripts/discourse/components/bbcode.js",
"app/assets/javascripts/discourse/components/utilities.js",
"app/assets/javascripts/discourse/components/markdown.js")
# Load server side javascripts
if DiscoursePluginRegistry.server_side_javascripts.present?
@ -233,81 +233,17 @@ module PrettyText
links
end
class ExcerptParser < Nokogiri::XML::SAX::Document
attr_reader :excerpt
def initialize(length,options)
@length = length
@excerpt = ""
@current_length = 0
@strip_links = options[:strip_links] == true
end
def self.get_excerpt(html, length, options)
me = self.new(length,options)
parser = Nokogiri::HTML::SAX::Parser.new(me)
catch(:done) do
parser.parse(html) unless html.nil?
end
me.excerpt
end
def start_element(name, attributes=[])
case name
when "img"
attributes = Hash[*attributes.flatten]
if attributes["alt"]
characters("[#{attributes["alt"]}]")
elsif attributes["title"]
characters("[#{attributes["title"]}]")
else
characters("[image]")
end
when "a"
unless @strip_links
c = "<a "
c << attributes.map{|k,v| "#{k}='#{v}'"}.join(' ')
c << ">"
characters(c, false, false, false)
@in_a = true
end
when "aside"
@in_quote = true
end
end
def end_element(name)
case name
when "a"
unless @strip_links
characters("</a>",false, false, false)
@in_a = false
end
when "p", "br"
characters(" ")
when "aside"
@in_quote = false
end
end
def characters(string, truncate = true, count_it = true, encode = true)
return if @in_quote
encode = encode ? lambda{|s| ERB::Util.html_escape(s)} : lambda {|s| s}
if count_it && @current_length + string.length > @length
length = [0, @length - @current_length - 1].max
@excerpt << encode.call(string[0..length]) if truncate
@excerpt << "&hellip;"
@excerpt << "</a>" if @in_a
throw :done
end
@excerpt << encode.call(string)
@current_length += string.length if count_it
end
end
def self.excerpt(html, max_length, options={})
ExcerptParser.get_excerpt(html, max_length, options)
end
protected
def self.ctx_load(*files)
files.each do |file|
@ctx.load(app_root + file)
end
end
end