nickpending/webshot

Captures a web page as a screenshot

Webshot

Captures a web page as a screenshot using Poltergeist, Capybara and PhantomJS.

• 

Installation

Download and install PhantomJS and then add PhantomJS to your PATH. Add this line to your application's Gemfile:

gem "webshot"

And then execute:

$ bundle

Or install it yourself as:

$ gem install webshot

Usage

# Setup Capybara
ws = Webshot::Screenshot.instance

# Capture Google's home page
ws.capture "http://www.google.com/", "google.png"

# Customize thumbnail
ws.capture "http://www.google.com/", "google.png", width: 100, height: 90, quality: 85

# Customize thumbnail generation (MiniMagick)
# see: https://github.com/minimagick/minimagick
ws.capture("http://www.google.com/", "google.png") do |magick|
  magick.combine_options do |c|
    c.thumbnail "100x"
    c.background "white"
    c.extent "100x90"
    c.gravity "north"
    c.quality 85
  end
end

You can wait some time after visit page before capturing screenshot.

# Timeout in seconds
ws.capture 'http://www.google.com/', 'google.png', timeout: 2

You can login before capturing screenshot.

ws.start_session do
  visit 'https://github.com/login'
  fill_in 'Username or Email', :with => '[email protected]'
  fill_in 'Password', :with => 'password'
  click_button 'Sign in'
end.capture 'https://github.com/username/', 'github.png'

Contributing

1. Fork it
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create new Pull Request