Scope Commands

scopecommands.py

#coding: utf8
#################################### IMPORTS ###################################

# Sublime Libs
import sublime
import sublime_plugin
import bisect

################################### BINDINGS ###################################
[
  {
    "command": "select_scope", 
    "keys": [
      "ctrl+alt+shift+s", 
      "ctrl+alt+shift+d"
    ]
  }, 
  {
    "command": "show_scope_on_move", 
    "keys": [
      "ctrl+alt+shift+s", 
      "ctrl+alt+shift+c"
    ]
  }
]
#################################### HELPERS ###################################

def cursor(v):
    return v.sel()[0].begin()

def set_sels(view, sels):
    view.sel().clear()
    for sel in sels: view.sel().add(sel)

################################### COMMANDS ###################################

class SelectScope(sublime_plugin.TextCommand):
    last = ''

    def run(self, edit):
        view   = self.view
        window = view.window()
        sels   = start_sels = PyRegionSetLite(view.sel())

        if not view.has_non_empty_selection_region():
            view.sel().add(sublime.Region(0, view.size()))
            sels    = PyRegionSetLite(view.sel())

        def on_cancel():
            set_sels(view, start_sels)

        def on_done(s):
            self.last = s

        def on_change(s):
            if not s: return
            runs = [s for s in view.find_by_selector(s) if sels.contains(s)]

            try:
                edit = view.begin_edit()
                if runs:
                    view.sel().clear()
                    for sel in runs: view.sel().add(sel)
                    view.show(view.sel())
                else:
                    set_sels(view, [])
            finally:
                view.end_edit(edit)

        on_change(self.last)
        window.show_input_panel (
            'Enter Scope', self.last, on_done, on_change, on_cancel )

class ShowScopeOnMove(sublime_plugin.TextCommand):
    def run(self, edit):
        view     = self.view
        settings = view.settings()

        settings.set('scopemode', not settings.get('scopemode'))

        if not settings.get('scopemode'):
            view.erase_status('scope')

class ShowScopeOnMoveListener(sublime_plugin.EventListener):
    def on_selection_modified(self, view):
        if view.sel() and view.settings().get('scopemode'):
            scope = view.scope_name(cursor(view)).strip()
            sublime.set_clipboard(scope)
            view.set_status('scope', 'Scope %s' % scope)

class PyRegionSetLite(list):
    def _bisect(self, r, bisector):
        ix = min(bisector(self, r), len(self) -1)
        reg = self[ix]
        if r < reg and not (reg.contains(r) or reg.intersects(r)): ix -= 1
        return max(0, ix)

    def bisect(self, r):
        return self._bisect(r, bisect.bisect)

    def contains(self, r):
        return self and self.closest_selection(r).contains(r)

    def closest_selection(self, r):
        return self[self.bisect(r)]

################################################################################