3

我正在使用 Google Places 自动完成功能，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);
                });
4

4 回答 4

3

尝试这个：

演示：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");
        }

    });
于 2016-06-02T06:49:06.987 回答
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
        }
    }
于 2020-05-12T10:38:26.643 回答
2

在模糊的情况下，在浪费了很多时间之后，我认为模糊会在其他任何事情之前执行（比如模拟按键）。还，

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）中这样做了：

} 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
                                    }
                                });
                            }

笔记：

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

我使用这个是因为我有多个自动完成功能并且有很多 pac 容器，但如果你只有一个，

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

应该足够了。

于 2017-02-03T19:03:25.487 回答
1

有了这个答案，我创建了一些代码来选择模糊的第一个项目，然后输入：

_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)
}

于 2020-06-18T06:23:27.767 回答