Hack lang: Sublime Text 3 plugin to copy fully qualified class name to clipboard using hh_client

hhclient_use.py

from subprocess import Popen, PIPE, STDOUT
import json
import sublime, sublime_plugin

"""
hhclient_use: copy fully qualified class name to clipboard

Copy the full class name at the current cursor position (or first class in the file)
to the clipboard. Requires the hh_client command line program to provide a JSON formatted
outline of the code in the focused buffer.
"""
class HhclientUseCommand(sublime_plugin.TextCommand):
    def run(self, edit):
        command = ['/usr/bin/hh_client', '--outline', '--json']
        content = self.view.substr(sublime.Region(0, self.view.size()))

        with Popen(command, stdout=PIPE, stdin=PIPE, stderr=STDOUT) as proc:
            client_stdout = proc.communicate(input=str.encode(content))[0]
            raw = client_stdout.decode()

        outline = json.loads(raw)
        cursor_line = self.get_cursor_line()
        name = None

        # loop through all returned symbols until we go past the cursor position
        for index,item in enumerate(reversed(outline)):
            if (item['type'] == 'class'):
                name = item['name']

            if (cursor_line >= item['line']):
                break

        sublime.set_clipboard(name)
    
    def get_cursor_line(self):
        region = self.view.sel()[0]
        cursor = self.view.rowcol(region.a)

        return cursor[0] + 1