Google 地点自动完成 - 点击模糊的第一个结果

Question

我正在使用 Google Places Autocomplete，我只是希望它在表单字段中触发模糊事件并且存在建议时触发结果列表中顶部项目的点击事件。

var pac_input = document.getElementById('pick-auto');

                (function pacSelectFirst(input) {
                  // store the original event binding function
                  var _addEventListener = (input.addEventListener) ? input.addEventListener : input.attachEvent;

                  function addEventListenerWrapper(type, listener) {
                    // Simulate a 'down arrow' keypress on hitting 'return' when no pac suggestion is selected,
                    // and then trigger the original listener.
                    if (type == "keydown" || type == "blur") {
                      var orig_listener = listener;
                      listener = function(event) {
                        var suggestion_selected = $(".pac-item-selected").length > 0;
                        var keyCode = event.keyCode || event.which;
                        if ((keyCode === 13 || keyCode === 9) && !suggestion_selected) {
                          var simulated_downarrow = $.Event("keydown", {
                            keyCode: 40,
                            which: 40
                          });
                          orig_listener.apply(input, [simulated_downarrow]);
                        } else if(event.type === 'blur') {
                            pac_input.value =
                             $(".pac-container .pac-item:first-child").text();
                            // $(".pac-container").delegate(".pac-item:first-child","click",function(){
                            //  console.log("success");
                            // });

                            $(".pac-container .pac-item:first-child").bind('click',function(){
                                console.log("click");
                            });

                        }
                        orig_listener.apply(input, [event]);
                      };
                    }

                    // add the modified listener
                    _addEventListener.apply(input, [type, listener]);
                  }

                  if (input.addEventListener)
                    input.addEventListener = addEventListenerWrapper;
                  else if (input.attachEvent)
                    input.attachEvent = addEventListenerWrapper;

                })(pac_input);


                $(function() {
                  var autocomplete = new google.maps.places.Autocomplete(pac_input);
                });

Answer 1

试试这个：

DEmo: http://jsfiddle.net/q7L8bawe/

添加此事件：

$("#pick-auto").blur(function (e) {
        if (e.which == 13) {
            var firstResult = $(".pac-container .pac-item:first").text();

            var geocoder = new google.maps.Geocoder();
            geocoder.geocode({"address":firstResult }, function(results, status) {
                if (status == google.maps.GeocoderStatus.OK) {
                    var lat = results[0].geometry.location.lat(),
                        lng = results[0].geometry.location.lng(),
                        placeName = results[0].address_components[0].long_name,
                        latlng = new google.maps.LatLng(lat, lng);

                        $(".pac-container .pac-item:first").addClass("pac-selected");
                        $(".pac-container").css("display","none");
                        $("#pick-auto").val(firstResult);
                        $(".pac-container").css("visibility","hidden");

                }
            });
        } else {
            $(".pac-container").css("visibility","visible");
        }

    });

Answer 2

在模糊的情况下，在浪费了很多时间之后，我认为模糊先于其他任何东西执行（比如模拟按键）。另外，

pac_input.value = $(".pac-container .pac-item:first-child").text();

$(".pac-container .pac-item:first-child").bind('click',function(){
  console.log("click");
});

这将可怕的文本值绑定到自动完成。因此，作为替代方案，我在其他部分（模糊）做了这个：

} else if (event.type == 'blur' && $(".pac-item").length > 0) {
                                var search = $('.pac-container:eq( '+$scope.$index+' ) .pac-item:first-child').text();
                                var autocompleteService = new google.maps.places.AutocompleteService();
                                autocompleteService.getPlacePredictions({
                                    'input': search,
                                    'offset': search.length,
                                    'componentRestrictions': { 'country': 'ar' }
                                }, function listentoresult(list, status) {
                                    if (list == null || list.length == 0) {
                                       //error!
                                    } else {
                                        //do what u want with the first autocomplete, it is the first result that the service will give you. If you want the same result with places, you must ask for the placesServices from googleapi
                                    }
                                });
                            }

注意：

$('.pac-container:eq('+$scope.$index+') .pac-item:first-child').text()

我使用这个是因为我有多个自动完成并且有很多 pac-container，但是如果你只有一个，

$('.pac-container .pac-item:first-child').text()

应该足够了。

Answer 3

我在我的项目中这样做了：

    function initAutocomplete() {
        autocomplete = new google.maps.places.Autocomplete(document.getElementById('autocomplete'), {types: ['geocode']});
        autocomplete.setFields(['address_component']);
        // "standard" place_changed event
        autocomplete.addListener('place_changed', fillInAddress);
        // custom blur event
        $("#autocomplete").on('blur', function () {
            var $hover = $(".pac-container .pac-item:hover");
            // if an item has been clicked, do nothing, otherwise get first solution and use Geocoder to get the place
            if ($hover.length === 0) {
                var firstResult = $(".pac-container .pac-item:first").text();
                var geocoder = new google.maps.Geocoder();
                geocoder.geocode({
                    address: firstResult
                }, function (results, status) {
                    if (status === google.maps.GeocoderStatus.OK) {
                        fillInAddress(results[0]);
                    }
                });
            }
        });
    }

    function fillInAddress(place) {
        if (!place) {
            place = autocomplete.getPlace();
        }
        if (place && place.address_components) {
            // ... do what you need with the place
        }
    }

Answer 4

有了这个我创建了一些代码来在模糊和输入时选择第一个项目：

_addSelectFirstEvents() {
  const autoSelectFirstEntry = (e) => {
    if (e.type === 'keydown' && e.keyCode === 13) event.preventDefault()

  const isSuggestionSelected =
    document.querySelectorAll('.pac-item-selected').length > 0 ||
    document.querySelectorAll('.pac-container .pac-item:hover').length > 0

    if (
      !isSuggestionSelected &&
      ((e.keyCode === 13 && !e.triggered) || e.type === 'blur')
    ) {
      let arrowDownKeyEvent = new KeyboardEvent('keydown', {
        bubbles: true,
        cancelable: true,
        key: 'Down',
        code: 'Down',
        keyCode: 40,
        which: 40,
      })
      google.maps.event.trigger(e.target, 'keydown', arrowDownKeyEvent)

      const enterKeyEvent = new KeyboardEvent('keydown', {
        bubbles: true,
        cancelable: true,
        key: 'Enter',
        code: 'Enter',
        keyCode: 13,
        which: 13,
        triggered: true,
      })
      google.maps.event.trigger(e.target, 'keydown', enterKeyEvent)
    }
  }

  google.maps.event.addDomListener(this.input, 'blur', autoSelectFirstEntry)
  google.maps.event.addDomListener(this.input, 'keydown', autoSelectFirstEntry)
}

Google 地点自动完成 - 点击模糊的第一个结果

Google Places Autocomplete - Click first result on blur

javascript

jquery

google-maps

google-geolocation