Class: Browser

Inherits:
Object
  • Object
show all
Includes:
Bots, Consoles, Devices, IE, Language, Mobile, Platform, Tv
Defined in:
lib/browser.rb,
lib/browser/rails.rb,
lib/browser/meta/id.rb,
lib/browser/meta/ie.rb,
lib/browser/version.rb,
lib/browser/meta/ios.rb,
lib/browser/meta/base.rb,
lib/browser/methods/ie.rb,
lib/browser/methods/tv.rb,
lib/browser/middleware.rb,
lib/browser/meta/mobile.rb,
lib/browser/meta/modern.rb,
lib/browser/meta/safari.rb,
lib/browser/meta/webkit.rb,
lib/browser/methods/bots.rb,
lib/browser/meta/platform.rb,
lib/browser/methods/mobile.rb,
lib/browser/methods/devices.rb,
lib/browser/methods/consoles.rb,
lib/browser/methods/language.rb,
lib/browser/methods/platform.rb,
lib/browser/action_controller.rb,
lib/browser/middleware/context.rb,
lib/browser/meta/generic_browser.rb,
lib/browser/middleware/context/additions.rb,
lib/browser/middleware/context/url_methods.rb

Defined Under Namespace

Modules: ActionController, Bots, Consoles, Devices, IE, Language, Meta, Mobile, Platform, Tv, Version Classes: Middleware, Railtie

Constant Summary collapse

NAMES = 
{
  edge: "Microsoft Edge",   # Must come before everything
  ie: "Internet Explorer",  # Must come before android
  chrome: "Chrome",         # Must come before android
  firefox: "Firefox",       # Must come before android
  android: "Android",
  blackberry: "BlackBerry",
  core_media: "Apple CoreMedia",
  ipad: "iPad",
  iphone: "iPhone",
  ipod: "iPod Touch",
  nintendo: "Nintendo",
  opera: "Opera",
  phantom_js: "PhantomJS",
  psp: "PlayStation Portable",
  playstation: "PlayStation",
  quicktime: "QuickTime",
  safari: "Safari",
  xbox: "Xbox",

  # This must be last item, since Ruby 1.9+ has ordered keys.
  other: "Other",
}
VERSIONS = 
{
  edge: %r[Edge/([\d.]+)],
  chrome: %r[(?:Chrome|CriOS)/([\d.]+)],
  default: %r[(?:Version|MSIE|Firefox|QuickTime|BlackBerry[^/]+|CoreMedia v|PhantomJS|AdobeAIR)[/ ]?([a-z0-9.]+)]i,
  opera: %r[(?:Opera/.*? Version/([\d.]+)|Chrome/.*?OPR/([\d.]+))],
  ie: %r[(?:MSIE |Trident/.*?; rv:)([\d.]+)]
}

Constants included from Bots

Bots::BOTS, Bots::SEARCH_ENGINES

Constants included from Language

Language::LANGUAGES

Constants included from IE

IE::MODERN_IE, IE::TRIDENT_VERSION_REGEX

Instance Attribute Summary collapse

Attributes included from Language

#accept_language

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Tv

#tv?

Methods included from Bots

#bot?, #bot_name, detect_empty_ua!, detect_empty_ua?, #search_engine?

Methods included from Consoles

#console?, #nintendo?, #playstation4?, #playstation?, #psp?, #psp_vita?, #xbox?, #xbox_one?

Methods included from Devices

#ipad?, #iphone?, #ipod?, #kindle?, #playbook?, #surface?, #tablet?, #windows_touchscreen_desktop?

Methods included from Mobile

#adobe_air?, #blackberry?, #mobile?, #opera_mini?

Methods included from Platform

#android?, #blackberry10?, #blackberry4?, #blackberry5?, #blackberry6?, #blackberry7?, #chrome_os?, #ios4?, #ios5?, #ios6?, #ios7?, #ios8?, #ios?, #linux?, #mac?, #platform, #windows10?, #windows7?, #windows8?, #windows8_1?, #windows?, #windows_mobile?, #windows_phone?, #windows_rt?, #windows_vista?, #windows_wow64?, #windows_x64?, #windows_x64_inclusive?, #windows_xp?

Methods included from IE

#compatibility_view?, #ie10?, #ie11?, #ie6?, #ie7?, #ie8?, #ie9?, #ie?

Constructor Details

#initialize(options = {}) {|_self| ... } ⇒ Browser

Create a new browser instance and set the UA and Accept-Language headers.

browser = Browser.new({
  :ua => "Safari",
  :accept_language => "pt-br"
})

Yields:

  • (_self)

Yield Parameters:

  • _self (Browser) —

    the object that the method was called on



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# File 'lib/browser.rb', line 107

def initialize(options = {}, &block)
  self.user_agent = (options[:user_agent] || options[:ua]).to_s
  self.accept_language = options[:accept_language].to_s

  yield self if block
end

Instance Attribute Details

#user_agent ⇒ Object Also known as: ua

Set browser’s UA string.



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# File 'lib/browser.rb', line 40

def user_agent
  @user_agent
end

Class Method Details

.modern_rules ⇒ Object

Define the rules which define a modern browser. A rule must be a proc/lambda or any object that implements the method

and accepts the browser object.

To redefine all rules, clear the existing rules before adding your own.

# Only Chrome Canary is considered modern.
Browser.modern_rules.clear
Browser.modern_rules << -> b { b.chrome? && b.version >= '37' }



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# File 'lib/browser.rb', line 86

def self.modern_rules
  @modern_rules ||= []
end

Instance Method Details

#chrome? ⇒ Boolean

Detect if browser is Chrome.

Returns:

  • (Boolean) 


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# File 'lib/browser.rb', line 176

def chrome?
  ua =~ /Chrome|CriOS/ && !opera? && !edge?
end

#core_media? ⇒ Boolean

Detect if browser is Apple CoreMedia.

Returns:

  • (Boolean) 


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# File 'lib/browser.rb', line 152

def core_media?
  !!(ua =~ /CoreMedia/)
end

#edge? ⇒ Boolean

Detect if browser is Microsoft Edge.

Returns:

  • (Boolean) 


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# File 'lib/browser.rb', line 181

def edge?
  !!(ua =~ /Windows.*?\bEdge\/\d+/)
end

#firefox? ⇒ Boolean

Detect if browser is Firefox.

Returns:

  • (Boolean) 


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# File 'lib/browser.rb', line 171

def firefox?
  !!(ua =~ /Firefox/)
end

#full_version ⇒ Object

Return the full version.



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# File 'lib/browser.rb', line 131

def full_version
  _, *v = *ua.match(VERSIONS.fetch(id, VERSIONS[:default]))
  v.compact.first || "0.0"
end

#id ⇒ Object

Get the browser identifier.



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# File 'lib/browser.rb', line 120

def id
  NAMES.keys
    .find {|id| respond_to?("#{id}?") ? public_send("#{id}?") : id }
end

#known? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/browser.rb', line 195

def known?
  id != :other
end

#meta ⇒ Object Also known as: to_a

Return a meta info about this browser.



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# File 'lib/browser.rb', line 200

def meta
  Meta.constants.each_with_object(Set.new) do |meta_name, meta|
    meta_class = Meta.const_get(meta_name)
    meta.merge(meta_class.new(self).to_a)
  end.to_a
end

#modern? ⇒ Boolean

Return true if browser is modern (Webkit, Firefox 17+, IE9+, Opera 12+).

Returns:

  • (Boolean) 


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# File 'lib/browser.rb', line 137

def modern?
  self.class.modern_rules.any? {|rule| rule === self }
end

#name ⇒ Object

Get readable browser name.



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# File 'lib/browser.rb', line 115

def name
  NAMES[id]
end

#opera? ⇒ Boolean

Detect if browser is Opera.

Returns:

  • (Boolean) 


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# File 'lib/browser.rb', line 186

def opera?
  !!(ua =~ /(Opera|OPR)/)
end

#phantom_js? ⇒ Boolean

Detect if browser is PhantomJS

Returns:

  • (Boolean) 


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# File 'lib/browser.rb', line 157

def phantom_js?
  !!(ua =~ /PhantomJS/)
end

#quicktime? ⇒ Boolean

Detect if browser is QuickTime

Returns:

  • (Boolean) 


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# File 'lib/browser.rb', line 147

def quicktime?
  !!(ua =~ /QuickTime/i)
end

#safari? ⇒ Boolean

Detect if browser is Safari.

Returns:

  • (Boolean) 


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# File 'lib/browser.rb', line 162

def safari?
  (ua =~ /Safari/ || safari_webapp_mode?) && ua !~ /Android|Chrome|CriOS|PhantomJS/
end

#safari_webapp_mode? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/browser.rb', line 166

def safari_webapp_mode?
  (ipad? || iphone?) && ua =~ /AppleWebKit/
end

#silk? ⇒ Boolean

Detect if browser is Silk.

Returns:

  • (Boolean) 


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# File 'lib/browser.rb', line 191

def silk?
  !!(ua =~ /Silk/)
end

#to_s ⇒ Object

Return meta representation as string.



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# File 'lib/browser.rb', line 210

def to_s
  meta.to_a.join(" ")
end

#version ⇒ Object

Return major version.



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# File 'lib/browser.rb', line 126

def version
  full_version.to_s.split(".").first
end

#webkit? ⇒ Boolean

Detect if browser is WebKit-based.

Returns:

  • (Boolean) 


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# File 'lib/browser.rb', line 142

def webkit?
  ua =~ /AppleWebKit/i && !edge?
end