# Copyright (C) 2007 - Nando Vieira
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.
# 
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

import gedit
import gtk
import gtk.gdk
import os
import os.path
from gettext import gettext as _

DEBUG_NAME = 'S_DEBUG'
DEBUG_TITLE = 'sample'

def debug(text, level=1):
    if os.environ.has_key(DEBUG_NAME):
        try:
            required_level = int(os.environ[DEBUG_NAME])
            
            if required_level >= level:
                print "[%s] %s" % (DEBUG_TITLE, text)
        except:
            print "[%s] debug error" % DEBUG_TITLE

class SamplePlugin(gedit.Plugin):
    def __init__(self):
        gedit.Plugin.__init__(self)
        self.instances = {}

    def activate(self, window):
        debug('activating plugin')
        self.instances[window] = SampleWindowHelper(self, window)

    def deactivate(self, window):
        debug('deactivating plugin')
        self.instances[window].deactivate()
        del self.instances[window]

    def update_ui(self, window):
        debug('updating ui')
        self.instances[window].update_ui()

class SampleWindowHelper:
    handlers = {}
    
    def __init__(self, plugin, window):
        self.window = window
        self.plugin = plugin
        self.statusbar = window.get_statusbar()
        self.context_id = self.statusbar.get_context_id('SampleStatusbar')
        self.set_status()
        
        for view in window.get_views():
            self.connect_handlers(view)
        
        window.connect('tab_added', self.on_tab_added)
    
    def deactivate(self):
        debug('deactivate function called')
        
        for view in self.handlers:
            view.disconnect(self.handlers[view])
        
        self.window = None
        self.plugin = None
    
    def connect_handlers(self, view):
        handler = view.connect('key-press-event', self.on_key_press)
        self.handlers[view] = handler
        
    def on_tab_added(self, window, tab):
        self.connect_handlers(tab.get_view())
    
    def update(self, text=None):
        pass
    
    def update_ui(self):
        pass
    
    def set_status(self, text=None):
        self.statusbar.pop(self.context_id)
        
        if text is not None:
            self.statusbar.push(self.context_id, "Sample: %s " % _(text))

    def set_data(self, name, value):
        self.window.get_active_tab().get_view().set_data(name, value)
    
    def get_data(self, name):
        return self.window.get_active_tab().get_view().get_data(name)
    
    def on_key_press(self, view, event):
        pass