#!/usr/bin/env python
# -*- coding: utf-8 -*-

# ***********************IMPORTANT NMAP LICENSE TERMS************************
# *                                                                         *
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# *                                                                         *
# ***************************************************************************/

import gtk
import pango

from zenmapGUI.higwidgets.higboxes import HIGHBox, HIGVBox
from zenmapGUI.higwidgets.higbuttons import HIGButton
from zenmapGUI.higwidgets.higscrollers import HIGScrolledWindow
import zenmapCore.I18N

def status_data_func(widget, cell_renderer, model, iter):
    entry = model.get_value(iter, 0)
    if entry.running:
        status = _("Running")
    elif entry.finished:
        if entry.parsed is not None and entry.parsed.unsaved:
            status = _("Unsaved")
        else:
            status = ""
    elif entry.failed:
        status = _("Failed")
    elif entry.canceled:
        status = _("Canceled")
    cell_renderer.set_property("text", status)

def command_data_func(widget, cell_renderer, model, iter):
    entry = model.get_value(iter, 0)
    cell_renderer.set_property("ellipsize", pango.ELLIPSIZE_END)
    cell_renderer.set_property("text", entry.get_command_string())

class ScanScanListPage(HIGVBox):
    """This is the "Scans" scan results tab. It the list of running and finished
    scans contained in the ScansListStore passed to the constructor."""
    def __init__(self, scans_store):
        HIGVBox.__init__(self)

        self.set_spacing(4)

        scans_store.connect("row-changed", self._row_changed)

        self.scans_list = gtk.TreeView(scans_store)
        self.scans_list.get_selection().connect("changed", self._selection_changed)

        status_col = gtk.TreeViewColumn(_("Status"))
        cell = gtk.CellRendererText()
        status_col.pack_start(cell)
        status_col.set_cell_data_func(cell, status_data_func)
        self.scans_list.append_column(status_col)

        command_col = gtk.TreeViewColumn(_("Command"))
        cell = gtk.CellRendererText()
        command_col.pack_start(cell)
        command_col.set_cell_data_func(cell, command_data_func)
        self.scans_list.append_column(command_col)

        scrolled_window = HIGScrolledWindow()
        scrolled_window.set_border_width(0)
        scrolled_window.add(self.scans_list)

        self.pack_start(scrolled_window, True, True)

        hbox = HIGHBox()
        buttonbox = gtk.HButtonBox()
        buttonbox.set_layout(gtk.BUTTONBOX_START)
        buttonbox.set_spacing(4)

        self.append_button = HIGButton(_("Append Scan"), gtk.STOCK_ADD)
        buttonbox.pack_start(self.append_button, False)

        self.remove_button = HIGButton(_("Remove Scan"), gtk.STOCK_REMOVE)
        buttonbox.pack_start(self.remove_button, False)

        self.cancel_button = HIGButton(_("Cancel Scan"), gtk.STOCK_CANCEL)
        buttonbox.pack_start(self.cancel_button, False)

        hbox.pack_start(buttonbox, padding = 4)

        self.pack_start(hbox, False, padding = 4)

        self._update()

    def _row_changed(self, model, path, i):
        self._update()

    def _selection_changed(self, selection):
        self._update()

    def _update(self):
        # Make the Cancel button sensitive or not depending on whether a running
        # scan is selected.
        tree_selection = self.scans_list.get_selection()
        if tree_selection is None:
            # I can't find anything in the PyGTK documentation that suggests
            # this is possible, but we received many crash reports that indicate
            # it is.
            model, selection = None, []
        else:
            model, selection = tree_selection.get_selected_rows()

        for path in selection:
            entry = model.get_value(model.get_iter(path), 0)
            if entry.running:
                self.cancel_button.set_sensitive(True)
                break
        else:
            self.cancel_button.set_sensitive(False)

        if len(selection) == 0:
            self.remove_button.set_sensitive(False)
        else:
            self.remove_button.set_sensitive(True)
