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index.ts
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index.ts
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/*
* Copyright 2019 Google LLC. All Rights Reserved.
*
* 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.
*/
// [START maps_places_autocomplete]
// This example requires the Places library. Include the libraries=places
// parameter when you first load the API. For example:
// <script src="https://maps.googleapis.com/maps/api/js?key=YOUR_API_KEY&libraries=places">
function initMap(): void {
const map = new google.maps.Map(
document.getElementById("map") as HTMLElement,
{
center: { lat: 40.749933, lng: -73.98633 },
zoom: 13,
}
);
const card = document.getElementById("pac-card") as HTMLElement;
const input = document.getElementById("pac-input") as HTMLInputElement;
const biasInputElement = document.getElementById(
"use-location-bias"
) as HTMLInputElement;
const strictBoundsInputElement = document.getElementById(
"use-strict-bounds"
) as HTMLInputElement;
const options = {
fields: ["formatted_address", "geometry", "name"],
strictBounds: false,
types: ["establishment"],
};
map.controls[google.maps.ControlPosition.TOP_RIGHT].push(card);
const autocomplete = new google.maps.places.Autocomplete(input, options);
// Bind the map's bounds (viewport) property to the autocomplete object,
// so that the autocomplete requests use the current map bounds for the
// bounds option in the request.
// [START maps_places_autocomplete_bind]
autocomplete.bindTo("bounds", map);
// [END maps_places_autocomplete_bind]
const infowindow = new google.maps.InfoWindow();
const infowindowContent = document.getElementById(
"infowindow-content"
) as HTMLElement;
infowindow.setContent(infowindowContent);
const marker = new google.maps.Marker({
map,
anchorPoint: new google.maps.Point(0, -29),
});
autocomplete.addListener("place_changed", () => {
infowindow.close();
marker.setVisible(false);
const place = autocomplete.getPlace();
if (!place.geometry || !place.geometry.location) {
// User entered the name of a Place that was not suggested and
// pressed the Enter key, or the Place Details request failed.
window.alert("No details available for input: '" + place.name + "'");
return;
}
// If the place has a geometry, then present it on a map.
if (place.geometry.viewport) {
map.fitBounds(place.geometry.viewport);
} else {
map.setCenter(place.geometry.location);
map.setZoom(17);
}
marker.setPosition(place.geometry.location);
marker.setVisible(true);
infowindowContent.children["place-name"].textContent = place.name;
infowindowContent.children["place-address"].textContent =
place.formatted_address;
infowindow.open(map, marker);
});
// Sets a listener on a radio button to change the filter type on Places
// Autocomplete.
function setupClickListener(id, types) {
const radioButton = document.getElementById(id) as HTMLInputElement;
radioButton.addEventListener("click", () => {
autocomplete.setTypes(types);
input.value = "";
});
}
setupClickListener("changetype-all", []);
setupClickListener("changetype-address", ["address"]);
setupClickListener("changetype-establishment", ["establishment"]);
setupClickListener("changetype-geocode", ["geocode"]);
biasInputElement.addEventListener("change", () => {
if (biasInputElement.checked) {
autocomplete.bindTo("bounds", map);
} else {
// User wants to turn off location bias, so three things need to happen:
// 1. Unbind from map
// 2. Reset the bounds to whole world
// 3. Uncheck the strict bounds checkbox UI (which also disables strict bounds)
// [START maps_places_autocomplete_unbind]
autocomplete.unbind("bounds");
autocomplete.setBounds({ east: 180, west: -180, north: 90, south: -90 });
// [END maps_places_autocomplete_unbind]
strictBoundsInputElement.checked = biasInputElement.checked;
}
input.value = "";
});
strictBoundsInputElement.addEventListener("change", () => {
autocomplete.setOptions({
strictBounds: strictBoundsInputElement.checked,
});
if (strictBoundsInputElement.checked) {
biasInputElement.checked = strictBoundsInputElement.checked;
autocomplete.bindTo("bounds", map);
}
input.value = "";
});
}
// [END maps_places_autocomplete]
export { initMap };