File: _tabbar.py

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lomiri-ui-toolkit 1.3.5110%2Bdfsg-2
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# -*- Mode: Python; coding: utf-8; indent-tabs-mode: nil; tab-width: 4 -*-
#
# Copyright (C) 2012, 2013, 2014 Canonical Ltd.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation; version 3.
#
# 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 Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.

import logging

from autopilot import logging as autopilot_logging
from lomiriuitoolkit._custom_proxy_objects import _common


logger = logging.getLogger(__name__)


class TabBar(_common.LomiriUIToolkitCustomProxyObjectBase):
    """TabBar Autopilot custom proxy object."""

    @autopilot_logging.log_action(logger.info)
    def switch_to_next_tab(self):
        """Open the next tab."""
        self._activate_tab_bar()
        logger.debug('Click the next tab bar button.')
        self.pointing_device.click_object(self._get_next_tab_button())

    def _activate_tab_bar(self):
        # First move to the tab bar to avoid timing issues when we find it in
        # selection mode but it's deselected while we move to it.
        self.pointing_device.move_to_object(self)
        if self.selectionMode:
            logger.debug('Already in selection mode.')
        else:
            # Click the tab bar to switch to selection mode.
            logger.debug('Click the tab bar to enable selection mode.')
            self.pointing_device.click_object(self)

    def _get_next_tab_button(self):
        current_index = self._get_selected_button_index()
        next_index = (current_index + 1) % self._get_number_of_tab_buttons()
        return self._get_tab_button(next_index)

    def _get_selected_button_index(self):
        return self.select_single('QQuickPathView').selectedButtonIndex

    def _get_number_of_tab_buttons(self):
        return len(self._get_tab_buttons())

    def _get_tab_buttons(self):
        # TabBar is only used before 1.3, when there was no UCAbstractButton
        return self.select_many('AbstractButton')

    def _get_tab_button(self, index):
        buttons = self._get_tab_buttons()
        for button in buttons:
            if button.buttonIndex == index:
                return button
        raise _common.ToolkitException(
            'There is no tab button with index {0}.'.format(index))