# Miro - an RSS based video player application
# Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011
# Participatory Culture Foundation
#
# 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 of the License, 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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
#
# In addition, as a special exception, the copyright holders give
# permission to link the code of portions of this program with the OpenSSL
# library.
#
# You must obey the GNU General Public License in all respects for all of
# the code used other than OpenSSL. If you modify file(s) with this
# exception, you may extend this exception to your version of the file(s),
# but you are not obligated to do so. If you do not wish to do so, delete
# this exception statement from your version. If you delete this exception
# statement from all source files in the program, then also delete it here.

"""Run dialogs from the backend thread."""

from miro import app
from miro import dialogs
from miro.gtcache import gettext as _
from miro.frontends.widgets import widgetutil
from miro.frontends.widgets.dialogs import MainDialog
from miro.plat.frontends.widgets import widgetset

def run(dialog):
    if dialog.__class__ in (dialogs.MessageBoxDialog, dialogs.ChoiceDialog,
                            dialogs.ThreeChoiceDialog):
        runner = DialogRunner(dialog)
    elif isinstance(dialog, dialogs.DatabaseErrorDialog):
        runner = DatabaseErrorDialogRunner(dialog)
    elif isinstance(dialog, dialogs.HTTPAuthDialog):
        runner = HTTPAuthDialogRunner(dialog)
    elif isinstance(dialog, dialogs.TextEntryDialog):
        runner = TextEntryDialogRunner(dialog)
    elif isinstance(dialog, dialogs.CheckboxTextboxDialog):
        runner = CheckboxTextboxDialogRunner(dialog)
    elif isinstance(dialog, dialogs.CheckboxDialog):
        runner = CheckboxDialogRunner(dialog)
    else:
        print 'DIALOG: ', dialog
        return
    runner.run()

class DialogRunner(object):
    def __init__(self, dialog):
        self.dialog = dialog

    def run(self):
        window = MainDialog(self.dialog.title, self.dialog.description)
        try:
            self.build_extra_widget(window)
            for button in self.dialog.buttons:
                window.add_button(button.text)
            response = window.run()
            if response == -1:
                self.dialog.run_callback(None)
            else:
                self.handle_response(response)
        finally:
            window.destroy()

    def handle_response(self, response):
        self.dialog.run_callback(self.dialog.buttons[response])

    def build_extra_widget(self, window):
        pass

class HTTPAuthDialogRunner(DialogRunner):
    def build_extra_widget(self, window):
        table = widgetset.Table(2, 2)
        table.set_column_spacing(12)
        table.pack(widgetset.Label(_("Username:")), 0, 0)
        self.username_entry = widgetset.TextEntry(self.dialog.prefill_user)
        self.username_entry.set_width(20)
        table.pack(self.username_entry, 1, 0)
        table.pack(widgetset.Label(_("Password:")), 0, 1)
        self.password_entry = widgetset.SecureTextEntry(
                self.dialog.prefill_password)
        self.password_entry.set_activates_default(True)
        table.pack(self.password_entry, 1, 1)
        window.set_extra_widget(widgetutil.align_center(table))

    def handle_response(self, response):
        username = self.username_entry.get_text()
        password = self.password_entry.get_text()
        self.dialog.run_callback(self.dialog.buttons[response], username,
                                 password)

class TextEntryDialogRunner(DialogRunner):
    def build_extra_widget(self, window):
        self.entry = widgetset.TextEntry()
        initial = None
        if self.dialog.fillWithClipboardURL:
            initial = 'http://clipboard.com/'
        if initial is None and self.dialog.prefill_callback:
            initial = self.dialog.prefill_callback()
        if initial is not None:
            self.entry.set_text(initial)
        self.entry.set_activates_default(True)
        window.set_extra_widget(self.entry)

    def handle_response(self, response):
        text = self.entry.get_text()
        self.dialog.run_callback(self.dialog.buttons[response], text)

class CheckboxDialogRunner(DialogRunner):
    def build_extra_widget(self, window):
        self.checkbox = widgetset.Checkbox(self.dialog.checkbox_text)
        self.checkbox.set_checked(self.dialog.checkbox_value)
        window.set_extra_widget(self.checkbox)

    def handle_response(self, response):
        checked = self.checkbox.get_checked()
        self.dialog.run_callback(self.dialog.buttons[response], checked)

class CheckboxTextboxDialogRunner(DialogRunner):
    def build_extra_widget(self, window):
        self.checkbox = widgetset.Checkbox(self.dialog.checkbox_text)
        self.checkbox.set_checked(self.dialog.checkbox_value)
        self.entry = widgetset.TextEntry(self.dialog.textbox_value)
        self.entry.set_activates_default(True)
        vbox = widgetset.VBox()
        vbox.pack_start(self.checkbox)
        vbox.pack_start(self.entry)
        window.set_extra_widget(vbox)

    def handle_response(self, response):
        checked = self.checkbox.get_checked()
        text = self.entry.get_text()
        self.dialog.run_callback(self.dialog.buttons[response], checked, text)

class DatabaseErrorDialogRunner(DialogRunner):
    def __init__(self, dialog):
        self.dialog = dialog

    def run(self):
        app.db_error_handler.run_backend_dialog(self.dialog)
