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SelectorGadget

SelectorGadget is an open source bookmarklet that makes CSS selector generation and discovery on complicated sites a breeze.

Please visit http://www.selectorgadget.com to try it out.

Technologies

• CoffeeScript
• jQuery
• diff-match-patch

Features

Remote interface

SelectorGadget can be extended for use in custom workflows with a remote interface that replaces the standard display and controls.

To define a remote interface, create a JavaScript file with any functionality you need, and append any relevant controls to SelectorGadget's UI container. Here's a simple example:

// sg_interface.js

var SG = window.selector_gadget

// Add field to display current selection (note the use of jQuerySG, 
// SelectorGadget's jQuery alias).
var path = jQuerySG('<input>', { id: 'sg-status', class: 'selectorgadget_ignore' })
SG.sg_div.append(path)
SG.path_output_field = path.get(0)

// Add button to dismiss SelectorGadget
var btnOk = jQuerySG('<button>', { id: 'sg-ok', class: 'selectorgadget_ignore' }).text('OK')
SG.sg_div.append(btnOk)
jQuerySG(btnOk).bind('click', function(event) {
  jQuerySG(SG).unbind()
  jQuerySG(SG.sg_div).unbind()
  SG.unbindAndRemoveInterface()
  SG = null
})

// Watch the input field for changes
var val = saved = path.val()
var tid = setInterval(function() {
  val = path.val()
  if(saved != val) {
    console.log('New path', val, 'matching', (jQuerySG(val).length), 'element(s)')
    saved = val
  }
}, 50)

Set the path to the remote interface in SelectorGadget's sg_options object prior to instantiation, like this:

window.sg_options = {
  remote_interface: '/path/to/sg_interface.js'
}

window.selector_gadget = new SelectorGadget()
// ...

Local Development

Compiling

Start by installing development dependencies with

bundle

and then run

guard

to watch and regenerate SelectorGadget's .coffee and .scss files.

Testing

SelectorGadget is tested with jasmine. With guard running, open spec/SpecRunner.html in your browser to run the tests. (On a Mac, just do open spec/SpecRunner.html)

To manually test during local development, open spec/test_sites/bookmarklet_local.html and use that local bookmarklet on the contents of spec/test_sites.