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# -*- coding: utf-8 -*-
#
# File: portato/gui/windows/plugin.py
# This file is part of the Portato-Project, a graphical portage-frontend.
#
# Copyright (C) 2008 René 'Necoro' Neumann
# This is free software.  You may redistribute copies of it under the terms of
# the GNU General Public License version 2.
# There is NO WARRANTY, to the extent permitted by law.
#
# Written by René 'Necoro' Neumann <necoro@necoro.net>

from __future__ import absolute_import

import gtk

from .basic import AbstractDialog
from ..dialogs import blocked_dialog, unmask_dialog
from ...backend import system
from ...backend.exceptions import PackageNotFoundException, BlockedException
from ...helper import debug

class PluginWindow (AbstractDialog):
    
    statsStore = gtk.ListStore(str)
    
    for s in (_("Disabled"), _("Temporarily enabled"), _("Enabled"), _("Temporarily disabled")):
        statsStore.append([s])

    def __init__ (self, parent, plugins, queue = None):
        """Constructor.

        @param parent: the parent window
        @type parent: gtk.Window"""
        
        AbstractDialog.__init__(self, parent)
        self.plugins = plugins
        self.queue = queue
        self.changedPlugins = {}
        self.inst = []
        self.ninst = []

        self.buttons = map(self.tree.get_widget, ("disabledRB", "tempEnabledRB", "enabledRB", "tempDisabledRB"))
        map(lambda b: b.set_mode(False), self.buttons)

        self.descrLabel = self.tree.get_widget("descrLabel")
        self.authorLabel = self.tree.get_widget("authorLabel")

        self.depExpander = self.tree.get_widget("depExpander")
        self.installBtn = self.tree.get_widget("installBtn")
        self.depList = self.tree.get_widget("depList")
        self.build_dep_list()

        self.buttonBox = self.tree.get_widget("buttonBox")

        self.instIcon = self.window.render_icon(gtk.STOCK_YES, gtk.ICON_SIZE_MENU)
        
        self.view = self.tree.get_widget("pluginList")
        self.store = gtk.ListStore(str)
        
        self.view.set_model(self.store)
        
        cell = gtk.CellRendererText()
        col = gtk.TreeViewColumn("Plugin", cell, markup = 0)
        self.view.append_column(col)
        
        for p in plugins:
            self.store.append(["<b>%s</b>" % p.name])

        self.view.get_selection().connect("changed", self.cb_list_selection)

        self.window.show_all()

    def build_dep_list (self):
        store = gtk.ListStore(gtk.gdk.Pixbuf, str)

        self.depList.set_model(store)

        col = gtk.TreeViewColumn()

        cell = gtk.CellRendererPixbuf()
        col.pack_start(cell, False)
        col.add_attribute(cell, "pixbuf", 0)

        cell = gtk.CellRendererText()
        col.pack_start(cell, True)
        col.add_attribute(cell, "text", 1)

        self.depList.append_column(col)

    def fill_dep_list (self, inst = [], ninst = []):
        store = self.depList.get_model()
        store.clear()

        for dep in inst:
            store.append([self.instIcon, dep])
        for dep in ninst:
            store.append([None, dep])

    def cb_state_toggled (self, rb):
    
        plugin = self.get_actual()

        if plugin:
            state = self.buttons.index(rb)

            self.changedPlugins[plugin] = state
            debug("new changed plugins: %s => %d", plugin.name, state)

    def cb_ok_clicked (self, btn):
        for plugin, val in self.changedPlugins.iteritems():
            plugin.status = val

        self.close()
        return True

    def cb_list_selection (self, selection):
        plugin = self.get_actual()
        self.inst = []
        self.ninst = []
        
        if plugin:
            if not plugin.description:
                self.descrLabel.hide()
            else:
                self.descrLabel.set_markup(plugin.description)
                self.descrLabel.show()

            self.authorLabel.set_label(plugin.author)
            
            status = self.changedPlugins.get(plugin, plugin.status)
            self.buttons[status].set_active(True)

            if plugin.deps:

                for dep in plugin.deps:
                    if system.find_packages(dep, pkgSet = system.SET_INSTALLED, with_version = False):
                        self.inst.append(dep)
                    else:
                        self.ninst.append(dep)

                self.fill_dep_list(self.inst, self.ninst)
                self.depExpander.show()
                
                self.installBtn.show()
                self.installBtn.set_sensitive(bool(self.ninst))

            else:
                self.installBtn.hide()
                self.depExpander.hide()
            
            self.buttonBox.set_sensitive(not plugin._unresolved_deps and plugin.status != plugin.STAT_HARD_DISABLED)

    def cb_install_clicked (self, *args):
        if not self.queue:
            return False
        
        for cpv in self.ninst:

            pkg = system.find_best_match(cpv, masked = False, only_cpv = True)
            if not pkg:
                pkg = system.find_best_match(cpv, masked = True, only_cpv = True)

            try:
                try:
                    self.queue.append(pkg, type = "install")
                except PackageNotFoundException, e:
                    if unmask_dialog(e[0]) == gtk.RESPONSE_YES:
                        self.queue.append(pkg, type = "install", unmask = True)
            except BlockedException, e:
                blocked_dialog(e[0], e[1])

        return True

    def get_actual (self):
        store, it = self.view.get_selection().get_selected()

        if it:
            return self.plugins[int(store.get_path(it)[0])]
        else:
            return None