TexasUnited/test.html at master · Tarzerk/TexasUnited · GitHub

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<!--
  Copyright 2019 Google LLC
  Licensed under the Apache License, Version 2.0 (the "License");
  you may not use this file except in compliance with the License.
  You may obtain a copy of the License at
       http://www.apache.org/licenses/LICENSE-2.0
  Unless required by applicable law or agreed to in writing, software
  distributed under the License is distributed on an "AS IS" BASIS,
  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  See the License for the specific language governing permissions and
  limitations under the License.
-->
<!DOCTYPE html>
<html>

<head>
  <title>Shelter</title>
  <meta name="viewport" content="initial-scale=1.0, user-scalable=no">
  <meta charset="utf-8">
  <style>
    /* Always set the map height explicitly to define the size of the div
     * element that contains the map. */
    #map {
      height: 100%;
      background-color: grey;
    }

    /* Optional: Makes the sample page fill the window. */
    html,
    body {
      height: 100%;
      margin: 0;
      padding: 0;
    }

    /* TODO: Step 4A1: Make a generic sidebar */
    /* Styling for an info pane that slides out from the left.
     * Hidden by default. */
    #panel {
      height: 100%;
      width: null;
      background-color: white;
      position: fixed;
      z-index: 1;
      overflow-x: hidden;
      transition: all .2s ease-out;
    }

    .open {
      width: 250px;
    }

    /* Styling for place details */
    .hero {
      width: 100%;
      height: auto;
      max-height: 166px;
      display: block;
    }

    .place,
    p {
      font-family: 'open sans', arial, sans-serif;
      padding-left: 18px;
      padding-right: 18px;
    }

    .details {
      color: darkslategrey;
    }

    a {
      text-decoration: none;
      color: cadetblue;
    }
  </style>
</head>

<body>
  <!-- TODO: Step 4A2: Add a generic sidebar -->
  <!-- The slide-out panel for showing place details -->
  <div id="panel"></div>

  <!-- Map appears here -->
  <div id="map"></div>

  <script>
    /* Note: This example requires that you consent to location sharing when
     * prompted by your browser. If you see the error "Geolocation permission
     * denied.", it means you probably did not give permission for the browser * to locate you. */
    let pos;
    let map;
    let bounds;
    let infoWindow;
    let currentInfoWindow;
    let service;
    let infoPane;
    function initMap() {
      // Initialize variables
      bounds = new google.maps.LatLngBounds();
      infoWindow = new google.maps.InfoWindow;
      currentInfoWindow = infoWindow;
      /* TODO: Step 4A3: Add a generic sidebar */
      infoPane = document.getElementById('panel');

      // Try HTML5 geolocation
      if (navigator.geolocation) {
        navigator.geolocation.getCurrentPosition(position => {
          pos = {
            lat: position.coords.latitude,
            lng: position.coords.longitude
          };
          map = new google.maps.Map(document.getElementById('map'), {
            center: pos,
            zoom: 15
          });
          bounds.extend(pos);

          infoWindow.setPosition(pos);
          infoWindow.setContent('Location found.');
          infoWindow.open(map);
          map.setCenter(pos);

          // Call Places Nearby Search on user's location
          getNearbyPlaces(pos);
        }, () => {
          // Browser supports geolocation, but user has denied permission
          handleLocationError(true, infoWindow);
        });
      } else {
        // Browser doesn't support geolocation
        handleLocationError(false, infoWindow);
      }
    }

    // Handle a geolocation error
    function handleLocationError(browserHasGeolocation, infoWindow) {
      // Set default location to Sydney, Australia
      pos = { lat: -33.856, lng: 151.215 };
      map = new google.maps.Map(document.getElementById('map'), {
        center: pos,
        zoom: 15
      });

      // Display an InfoWindow at the map center
      infoWindow.setPosition(pos);
      infoWindow.setContent(browserHasGeolocation ?
        'Geolocation permissions denied. Using default location.' :
        'Error: Your browser doesn\'t support geolocation.');
      infoWindow.open(map);
      currentInfoWindow = infoWindow;

      // Call Places Nearby Search on the default location
      getNearbyPlaces(pos);
    }

    // Perform a Places Nearby Search Request
    function getNearbyPlaces(position) {
      let request = {
        location: position,
        rankBy: google.maps.places.RankBy.DISTANCE,
        keyword: 'homeless shelter'
      };

      service = new google.maps.places.PlacesService(map);
      service.nearbySearch(request, nearbyCallback);
    }

    // Handle the results (up to 20) of the Nearby Search
    function nearbyCallback(results, status) {
      if (status == google.maps.places.PlacesServiceStatus.OK) {
        createMarkers(results);
      }
    }

    // Set markers at the location of each place result
    function createMarkers(places) {
      places.forEach(place => {
        let marker = new google.maps.Marker({
          position: place.geometry.location,
          map: map,
          title: place.name
        });

        /* TODO: Step 4B: Add click listeners to the markers */
        // Add click listener to each marker
        google.maps.event.addListener(marker, 'click', () => {
          let request = {
            placeId: place.place_id,
            fields: ['name', 'formatted_address', 'geometry', 'rating',
              'website', 'photos']
          };

          /* Only fetch the details of a place when the user clicks on a marker.
           * If we fetch the details for all place results as soon as we get
           * the search response, we will hit API rate limits. */
          service.getDetails(request, (placeResult, status) => {
            showDetails(placeResult, marker, status)
          });
        });

        // Adjust the map bounds to include the location of this marker
        bounds.extend(place.geometry.location);
      });
      /* Once all the markers have been placed, adjust the bounds of the map to
       * show all the markers within the visible area. */
      map.fitBounds(bounds);
    }

    /* TODO: Step 4C: Show place details in an info window */
    // Builds an InfoWindow to display details above the marker
    function showDetails(placeResult, marker, status) {
      if (status == google.maps.places.PlacesServiceStatus.OK) {
        let placeInfowindow = new google.maps.InfoWindow();
        let rating = "None";
        if (placeResult.rating) rating = placeResult.rating;
        placeInfowindow.setContent('<div><strong>' + placeResult.name +
          '</strong><br>' + 'Rating: ' + rating + '</div>');
        placeInfowindow.open(marker.map, marker);
        currentInfoWindow.close();
        currentInfoWindow = placeInfowindow;
        showPanel(placeResult);
      } else {
        console.log('showDetails failed: ' + status);
      }
    }

    /* TODO: Step 4D: Load place details in a sidebar */
    // Displays place details in a sidebar
    function showPanel(placeResult) {
      // If infoPane is already open, close it
      if (infoPane.classList.contains("open")) {
        infoPane.classList.remove("open");
      }

      // Clear the previous details
      while (infoPane.lastChild) {
        infoPane.removeChild(infoPane.lastChild);
      }

      /* TODO: Step 4E: Display a Place Photo with the Place Details */
      // Add the primary photo, if there is one
      if (placeResult.photos) {
        let firstPhoto = placeResult.photos[0];
        let photo = document.createElement('img');
        photo.classList.add('hero');
        photo.src = firstPhoto.getUrl();
        infoPane.appendChild(photo);
      }

      // Add place details with text formatting
      let name = document.createElement('h1');
      name.classList.add('place');
      name.textContent = placeResult.name;
      infoPane.appendChild(name);
      if (placeResult.rating) {
        let rating = document.createElement('p');
        rating.classList.add('details');
        rating.textContent = `Rating: ${placeResult.rating} \u272e`;
        infoPane.appendChild(rating);
      }
      let address = document.createElement('p');
      address.classList.add('details');
      address.textContent = placeResult.formatted_address;
      infoPane.appendChild(address);
      if (placeResult.website) {
        let websitePara = document.createElement('p');
        let websiteLink = document.createElement('a');
        let websiteUrl = document.createTextNode(placeResult.website);
        websiteLink.appendChild(websiteUrl);
        websiteLink.title = placeResult.website;
        websiteLink.href = placeResult.website;
        websitePara.appendChild(websiteLink);
        infoPane.appendChild(websitePara);
      }

      // Open the infoPane
      infoPane.classList.add("open");
    }
  </script>

  <script async defer src="https://maps.googleapis.com/maps/api/js?key=AIzaSyDDptjBZSOZ2BtKhnQS-mV8M-4-axwxgX8&libraries=places&callback=initMap">
  </script>
</body>

</html>