GazeTK

/*

 * Copyright 2015 Thies Pfeiffer and Dimitri Heil and Kevin Taron

 * Blinker is distributed under the terms of the GNU General Public License

 * 

 * This file is part of Blinker.

 * 

 * Blinker 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 3 of the License, or

 * (at your option) any later version.

 * 

 * Blinker 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 Blinker. If not, see <http://www.gnu.org/licenses/>.

 */

function piemenuAction(element) {

        var gazeObject = $(element);

        gazeObject.off("isFixated");

        gazeObject.on("isFixated", { fixelement: element, action: 'action'} , openPieMenu);

}

function piemenuChoice(element) {

        var gazeObject = $(element);

        gazeObject.off("isFixated");

        gazeObject.on("isFixated", { fixelement: element, action: 'choice'} , openPieMenu);

}

function piemenuText(element) {

        var gazeObject = $(element);

        gazeObject.off("isFixated");

        gazeObject.on("isFixated", { fixelement: element, action: 'text'} , openPieMenuKeyboard);

}

// Open the PieMenu

function openPieMenu(event) {

        var element = $(event.data.fixelement);

        var myarray = [];

        var pieMenu = '.gaze-piemenu';

        var pieMenuContent = '.gaze-piemenu-content';

        myarray = getItemForPiemenu(element, event.data.action);

        var elements = $(myarray);

        if(elements.length > 0) {

                $('.openedElement').removeClass('openedElement');

                element.addClass('openedElement');

                increasePieMenuSize(300,300);

                addItemsToPiemenu(elements, pieMenu, pieMenuContent);

                if(elements.length > 3) { increasePieMenuSize(pieMenu, 350,350); }

                if(elements.length > 5) { increasePieMenuSize(pieMenu, 450,450); }

                var piemenuHeight = $(pieMenu).height();

                var piemenuWidth = $(pieMenu).width();

                $(pieMenu).position({

                  my: "right" + (piemenuWidth/2) + " top-" + (piemenuHeight + 20),

                  at: "right top",

                  of: '.fixatedElement'

                });

                $(pieMenu).show();

        }

}

// Close Piemenu Keyboard

function openPieMenuKeyboard(event) {

        $('body').addClass('openedPieMenuKeyboard');

        var element = $(event.data.fixelement);

        if($(element).attr('gaze-piemenu') == 'submenu') {

                $('.openedSubMenu').removeClass('openedSubMenu');

                $(element).addClass('openedSubMenu');

                addKeyboardSubmenu(element);

        } else {        

                $('.openedElement').removeClass('openedElement')

                $('.inputGazeKeyboard').removeClass('inputGazeKeyboard');

                element.addClass('openedElement').addClass('inputGazeKeyboard');

                $('#gazeProgress').hide();

                createKeyboard(element);

        }

        setScrollAtBorder(false);

}

// Close the PieMenu

function closePieMenu() {

        $('.gaze-piemenu').hide();

        $('#gazeProgress').hide();

}

function increasePieMenuSize(pieMenu, width, height) {

        $(pieMenu).height(height);

        $(pieMenu).width(width);

}

function closePieMenuKeyboard() {

        $('body').removeClass('openedPieMenuKeyboard');

        savePreviewToInput();

        closePieMenu();

        $('.gaze-piemenuKeyboard').hide();

        $('#gazeProgress').hide();

        setScrollAtBorder();

}