geanypy-reStructured-preview/geanypy-restructured-preview.py at master · sagarchalise/geanypy-reStructured-preview · GitHub

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try:
    from gi import pygtkcompat
except ImportError:
    pygtkcompat = None

if pygtkcompat is not None:
    pygtkcompat.enable()
    pygtkcompat.enable_gtk(version='3.0')

import urlparse
from gettext import gettext as _
import gtk as Gtk
import geany
from reST import *


class ReStructuredTextPlugin(geany.Plugin):
    __plugin_name__ = _("reStructuredText Preview")
    __plugin_version__ = _("0.1")
    __plugin_description__ = _("reStructured Text Preview Panel in message window.")
    __plugin_author__ = _("Sagar Chalise <chalisesagar@gmail.com>")
    file_types = ('reStructuredText',)

    def __init__(self):
        signals = ('document-reload', 'document-save', 'document-activate', 'document-close')
        self.rest_win = RestructuredtextHtmlPanel()
        self.page_num = geany.main_widgets.message_window_notebook.append_page(self.rest_win, Gtk.Label(self.name))
        self.rest_win.show_all()
        for signal in signals:
            geany.signals.connect(signal, self.on_document_notify)
        geany.signals.connect("editor-notify", self.on_editor_notify)

    def cleanup(self):
        ##still not graceful  cleanup
        geany.main_widgets.message_window_notebook.remove_page(self.page_num)
        self.rest_win.clean_destroy()

    def check_selection_or_filetype(self, doc):
        sci = doc.editor.scintilla
        if doc.file_type.name in self.file_types:
            content = sci.get_contents()
            uri = urlparse.urljoin('file:', doc.file_name)
            return (content.strip(), uri)
        return ('Current document is not a reStructuredText Document', '')

    def update_window(self, text, uri, doc):
        msgwin = geany.msgwindow
        msgwin.clear_tab(msgwin.TAB_MESSAGE)
        doc.editor.indicator_clear(geany.editor.INDICATOR_ERROR)
        if doc.file_type.name in self.file_types:
            errors = check_for_errors(text, uri)
            if errors:
                msgwin.switch_tab(msgwin.TAB_MESSAGE, True)
                for error in errors:
                    doc.editor.indicator_set_on_line(geany.editor.INDICATOR_ERROR, error.line-1)
                    err_msg = '{}:{}:{}'.format(error.type, error.line,  error.message)
                    msgwin.msg_add(err_msg, msgwin.COLOR_RED, error.line, doc)
            else:
                geany.main_widgets.message_window_notebook.set_current_page(self.page_num)
        self.rest_win.update_view(text, uri)

    def on_document_notify(self, user_data, doc):
        text, uri = self.check_selection_or_filetype(doc)
        self.update_window(text, uri, doc)

    def on_editor_notify(self, g_obj, editor, nt):
        check = (nt.nmhdr.code == geany.scintilla.MODIFIED and nt.length > 0) \
                and ((nt.modification_type & geany.scintilla.MOD_INSERT_TEXT) \
                or (nt.modification_type & geany.scintilla.MOD_DELETE_TEXT))
        if check:
            text, uri = self.check_selection_or_filetype(editor.document)
            self.rest_win.update_view(text, uri)