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+/****************************************************************************
+**
+** Copyright (C) 2017 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** BSD License Usage
+** Alternatively, you may use this file under the terms of the BSD license
+** as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+** * Redistributions of source code must retain the above copyright
+** notice, this list of conditions and the following disclaimer.
+** * Redistributions in binary form must reproduce the above copyright
+** notice, this list of conditions and the following disclaimer in
+** the documentation and/or other materials provided with the
+** distribution.
+** * Neither the name of The Qt Company Ltd nor the names of its
+** contributors may be used to endorse or promote products derived
+** from this software without specific prior written permission.
+**
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+function requestNavigationRoute(rModel) {
+ var xhr = new XMLHttpRequest;
+ xhr.open("GET", "walk_route.json");
+ xhr.onreadystatechange = function () {
+ if (xhr.readyState === XMLHttpRequest.DONE) {
+ var a = JSON.parse(xhr.responseText);
+ var steps = a.routes[0].legs[0].steps;
+
+ for (var step in steps) {
+ var maneuver = steps[step].maneuver;
+ var duration = steps[step].duration;
+ var distance = steps[step].distance;
+
+ rModel.append({
+ navInstruction: maneuver.instruction,
+ navImage: getNavigationImage(
+ maneuver.type,
+ maneuver.modifier,
+ routeView.imageList),
+ navAuxInfo: getAuxInfo(distance,
+ duration)
+ });
+ }
+ }
+ }
+ xhr.send();
+}
+
+function getNavigationImage(maneuverType, maneuverModifier, imageList) {
+ var imageToReturn;
+ if (maneuverType === "depart") {
+ imageToReturn = imageList[4];
+ } else if (maneuverType === "arrive") {
+ imageToReturn = imageList[5];
+ } else if (maneuverType === "turn") {
+ if (maneuverModifier.search("left") >= 0)
+ imageToReturn = imageList[1];
+ else if (maneuverModifier.search("right") >= 0)
+ imageToReturn = imageList[2];
+ else
+ imageToReturn = imageList[0];
+ } else {
+ if (maneuverModifier === "uturn") {
+ imageToReturn = imageList[3];
+ } else {
+ imageToReturn = imageList[0];
+ }
+ }
+
+ return imageToReturn;
+}
+
+function getAuxInfo(distInMeters, timeInSecs) {
+ var distance = convertDistance(distInMeters);
+ if (distance.length > 0)
+ return "Distance: " + distance + "\nTime: " + formatSeconds(
+ timeInSecs);
+ else
+ return "";
+}
+
+function convertDistance(meter) {
+ var dist = "";
+ var feet = (meter * 0.3048).toPrecision(6);
+ var miles = (meter * 0.000621371).toPrecision(6);
+
+ if (Math.floor(miles) > 1) {
+ dist += Math.floor(miles) + " mi";
+ feet = ((miles - Math.floor(miles)) * 0.3048).toPrecision(6);
+ }
+ if (Math.floor(feet) > 1)
+ dist += Math.floor(feet) + " ft";
+
+ return dist
+}
+
+function formatSeconds(seconds) {
+ var date = new Date(1970, 0, 1);
+ date.setSeconds(seconds);
+ return date.toTimeString().replace(/.*(\d{2}:\d{2}:\d{2}).*/, "$1");
+}