An atom.io package to view the source of built-in Laravel 4 facades. (No longer maintained)
Use the atom package manager, which can be found in the Preferences view, or run apm install laravel-facades from the command line.
This package assumes your composer vendor/ directory is at the root of the project you have open as that it what it uses to retrieve the source files to open.
This package can be accessed view the Packages/Laravel Facades menu in the top menu bar, or it can be accessed by opening the command panel using cmd + shift + p and typing the Facade class name and hitting enter when the correct item is selected. If there are other items in the command panel, just prefix what you're searching with Laravel Facades or Facade to narrow the results.
When a Facade is selected using either of these methods, its source file will open in a new tab.