Google 自动完成地点 API 未通过 TAB 触发更改事件

Google Autocomplete Places API not triggering event on change via TAB

根据 Google Autocomplete Places API 文档,getPlace() 调用应该 return 一个包含所有位置数据的 Places 对象,或者,如果那个地方没有t 存在(即 - 用户忽略了建议),它应该 return 一个仅填充了 Places 对象的名称元素的存根。但是,它仅在用户按下 ENTER 时执行后一个操作,而不是如果他们TAB 出场。

我已经尝试查看更改事件、keyupkeydown 事件。我已经尝试用 keycode 13 在模糊等情况下触发 keydown 事件,等等。似乎没有任何效果。

有人解决过这个问题吗?很明显,用户会在表单中使用 Tab 键,而且他们总是有可能忽略这些建议。

pac-input 作为您的地点搜索输入,您可以执行以下操作:

// Trigger search on blur
document.getElementById('pac-input').onblur = function () {

    google.maps.event.trigger(this, 'focus', {});
    google.maps.event.trigger(this, 'keydown', {
        keyCode: 13
    });
};

或者使用 google 地图事件侦听器:

// Trigger search on blur
google.maps.event.addDomListener(document.getElementById("pac-input"), 'blur', function() {

    google.maps.event.trigger(this, 'focus', {});
    google.maps.event.trigger(this, 'keydown', {
        keyCode: 13
    });
});

编辑: 如评论中所述,这与用户通过鼠标单击选择位置的“正常行为”相混淆。

下面是一个使用纯 Javascript 的完整示例。对于(更简单的)jQuery 解决方案,请查看 .

function initialize() {

  var ac = new google.maps.places.Autocomplete(
    (document.getElementById('autocomplete')), {
      types: ['geocode']
    });

  ac.addListener('place_changed', function() {

    var place = ac.getPlace();

    if (!place.geometry) {

      // User entered the name of a Place that was not suggested and
      // pressed the Enter key, or the Place Details request failed.
      console.log("No details available for input: '" + place.name + "'");
      return;
    }

    console.log("You selected: '" + place.formatted_address + "'");
  });

  // Trigger search on blur
  google.maps.event.addDomListener(document.getElementById("autocomplete"), 'blur', function() {

    // Find the pac-container element
    var pacContainer = nextByClass(this, 'pac-container');

    // Check if we are hovering on one of the pac-items
    // :hover propagates to parent element so we only need to check it on the pac-container
    // We trigger the focus and keydown only if :hover is false otherwise it will interfere with a place selection via mouse click
    if (pacContainer.matches(':hover') === false) {

      google.maps.event.trigger(this, 'focus', {});
      google.maps.event.trigger(this, 'keydown', {
        keyCode: 13
      });
    }

  });
}

function hasClass(elem, cls) {
  var str = " " + elem.className + " ";
  var testCls = " " + cls + " ";
  return (str.indexOf(testCls) != -1);
}

function nextByClass(node, cls) {
  while (node = node.nextSibling) {
    if (hasClass(node, cls)) {
      return node;
    }
  }
  return null;
}
#autocomplete {
  width: 300px;
}
<script src="https://maps.googleapis.com/maps/api/js?libraries=places&callback=initialize&key=AIzaSyCkUOdZ5y7hMm0yrcCQoCvLwzdM6M8s5qk" async defer></script>
<input id="autocomplete" placeholder="Enter your address" type="text"></input>

以下扩展了@MrUpsidown 的解决方案,但试图避免在用户单击下拉列表中的项目时混淆用户

// Trigger search on blur
google.maps.event.addDomListener(document.getElementById("pac-input"), 'blur', function() {
  if (jQuery('.pac-item:hover').length === 0 ) {
    google.maps.event.trigger(this, 'focus', {});
    google.maps.event.trigger(this, 'keydown', {
        keyCode: 13
    });
  } 
});

显然发生了一些变化,上面的代码最近几天不工作,控制台中出现以下异常

 undefined is not an object (evaluating 'a.handled=!0')

您需要在焦点事件的触发器上添加一个空对象

var inputSearch = document.getElementById('pac-input');

google.maps.event.trigger(inputSearch, 'focus', {})
google.maps.event.trigger(inputSearch, 'keydown', {
    keyCode: 13
});