我有以下div，里面是输入文本。 div有一个popover，我想在输入文本处于焦点时显示它。如果输入文本没有焦点，我希望隐藏弹出窗口。我目前正在尝试使用以下代码执行此操作：
HTML：
<div id="divParent" bs-popover
data-trigger="focus click"
data-auto-close="1"
data-placement="bottom"
class="pswd-popover"
data-template-url="people/user/user-profile/templates/password-requirements.html">
<rp-form-input-text
rp-model="page.userData.password"
config="page.formConfig.password">
</rp-form-input-text>
</div>
MODEL：
model.password = inputTextConfig({
id: "password",
fieldName: "password",
dataType: "password",
required: false,
maxLength: 24,
modelOptions: {
allowInvalid: true,
},
onFocus: model.getMethod("showPopover")
});
控制器：
vm.showPopover = function () {
var focus = true;
$(window).keyup(function (e) {
var code = (e.keyCode ? e.keyCode : e.which);
if (code == 9 && focus) {
$timeout(function() {
angular.element('#divParent').trigger('click');
}, 100);
focus = false;
}
});
};
我遇到的问题是我只希望onfocus功能通过标签触发。因为单击div会自动触发弹出窗口的显示。这就是为什么我有keyup函数来检测div是否被点击或通过TAB访问。另一个问题是我只通过触发div的onclick来显示和隐藏弹出窗口。如何在控制器中显示和隐藏父div的弹出窗口？
答案 0 :(得分：3)
我实际上已经实现了这一点 - 仅在标签上触发（而不是在点击字段时），但我怀疑你想要包含两者，这样你也可以找到该场景的代码下方。
您可以使用$popover服务更精确地控制触发它。
var app = angular.module('app', ['ngAnimate', 'ngSanitize', 'mgcrea.ngStrap']);
app.controller('MainCtrl', function($scope, $popover) {
// sometimes we don't want to trigger code to show the Popover
$scope.suspendPopoverAction = false;
$scope.popover = {
title: 'HEY',
content: 'This was triggered by tabbing.'
};
var asAServiceOptions = {
title: $scope.popover.title,
content: $scope.popover.content,
trigger: 'manual',
placement: 'bottom',
autoClose: true,
onBeforeShow: function() {
$scope.activeElement = document.activeElement; // record element with focus
$scope.suspendPopoverAction = true; // don't trigger blur code
},
onShow: function() {
if ($scope.activeElement) $scope.activeElement.focus(); // restore focus
$scope.suspendPopoverAction = false; // popup is showing, and focus is back to input, so now safe for blur code
}
};
var myPopover = $popover(angular.element(document.querySelector('#divParent')), asAServiceOptions);
$scope.inputHasFocus = function() {
if (!$scope.suspendPopoverAction) {
myPopover.$promise.then(myPopover.show);
} else {
$scope.suspendPopoverAction = false;
}
};
$scope.inputLostFocus = function() {
if (!$scope.suspendPopoverAction) {
myPopover.$promise.then(myPopover.hide);
}
};
$scope.inputClicked = function(event) {
$scope.suspendPopoverAction = true; // prevent popover from showing on click
// NB: If you want to allow mouse clicks also:
// 1) use ng-click instead of ng-mousedown in the <input>
// 2) remove "$scope.suspendPopoverAction = true;" line and replace with:
// event.stopPropagation();
// Doing the above prevents the click triggering the "autoClose: true" option, resulting in flickering of the Popover
};
});body {
padding: 5px !important;
}
.pswd-popover {
background-color: orange;
padding: 10px;
margin: 10px;
}
.myheading {
margin-bottom: 15px;
}<!DOCTYPE html>
<html ng-app="app">
<head>
<meta charset="utf-8" />
<link rel="stylesheet" href="//cdn.jsdelivr.net/fontawesome/4.5.0/css/font-awesome.css">
<link rel="stylesheet" href="//cdn.jsdelivr.net/bootstrap/3.3.6/css/bootstrap.min.css">
<link rel="stylesheet" href="//mgcrea.github.io/angular-strap/styles/libs.min.css">
<link rel="stylesheet" href="//mgcrea.github.io/angular-strap/styles/docs.min.css">
<script src="//cdn.jsdelivr.net/angularjs/1.5.5/angular.min.js" data-semver="1.5.5"></script>
<script src="//cdn.jsdelivr.net/angularjs/1.5.5/angular-animate.min.js" data-semver="1.5.5"></script>
<script src="//cdn.jsdelivr.net/angularjs/1.5.5/angular-sanitize.min.js" data-semver="1.5.5"></script>
<script src="//mgcrea.github.io/angular-strap/dist/angular-strap.js" data-semver="v2.3.8"></script>
<script src="//mgcrea.github.io/angular-strap/dist/angular-strap.tpl.js" data-semver="v2.3.8"></script>
<script src="//mgcrea.github.io/angular-strap/docs/angular-strap.docs.tpl.js" data-semver="v2.3.8"></script>
</head>
<body ng-controller="MainCtrl">
<h4 class = "myheading">Trigger Popover on Tabbing in Password field only</h4>
An input for testing Tab:
<input type="text">
<div id="divParent" class="pswd-popover">
Password:
<input type="text" ng-focus="inputHasFocus()" ng-blur="inputLostFocus()" ng-mousedown="inputClicked($event)">
<button>Some Button</button>
</div>
Another input for testing Tab:
<input type="text">
</body>
</html>
在 标签或点击密码字段时显示Popover：
var app = angular.module('app', ['ngAnimate', 'ngSanitize', 'mgcrea.ngStrap']);
app.controller('MainCtrl', function($scope, $popover) {
// sometimes we don't want to trigger code to show the Popover
$scope.suspendPopoverAction = false;
$scope.popover = {
title: 'HEY',
content: 'Triggered by tabbing OR clicking.'
};
var asAServiceOptions = {
title: $scope.popover.title,
content: $scope.popover.content,
trigger: 'manual',
placement: 'bottom',
autoClose: true,
onBeforeShow: function() {
$scope.activeElement = document.activeElement; // record element with focus
$scope.suspendPopoverAction = true; // don't trigger blur code
},
onShow: function() {
if ($scope.activeElement) $scope.activeElement.focus(); // restore focus
$scope.suspendPopoverAction = false; // popup is showing, and focus is back to input, so now safe for blur code
}
};
var myPopover = $popover(angular.element(document.querySelector('#divParent')), asAServiceOptions);
$scope.inputHasFocus = function() {
if (!$scope.suspendPopoverAction) {
myPopover.$promise.then(myPopover.show);
} else {
$scope.suspendPopoverAction = false;
}
};
$scope.inputLostFocus = function() {
if (!$scope.suspendPopoverAction) {
myPopover.$promise.then(myPopover.hide);
}
};
$scope.inputClicked = function(event) {
// using the below code prevents the click triggering the "autoClose: true" option resulting in flickering
event.stopPropagation();
};
});body {
padding: 5px !important;
}
.pswd-popover {
background-color: orange;
padding: 10px;
margin: 10px;
}
.myheading {
margin-bottom: 15px;
}<!DOCTYPE html>
<html ng-app="app">
<head>
<meta charset="utf-8" />
<link rel="stylesheet" href="//cdn.jsdelivr.net/fontawesome/4.5.0/css/font-awesome.css">
<link rel="stylesheet" href="//cdn.jsdelivr.net/bootstrap/3.3.6/css/bootstrap.min.css">
<link rel="stylesheet" href="//mgcrea.github.io/angular-strap/styles/libs.min.css">
<link rel="stylesheet" href="//mgcrea.github.io/angular-strap/styles/docs.min.css">
<script src="//cdn.jsdelivr.net/angularjs/1.5.5/angular.min.js" data-semver="1.5.5"></script>
<script src="//cdn.jsdelivr.net/angularjs/1.5.5/angular-animate.min.js" data-semver="1.5.5"></script>
<script src="//cdn.jsdelivr.net/angularjs/1.5.5/angular-sanitize.min.js" data-semver="1.5.5"></script>
<script src="//mgcrea.github.io/angular-strap/dist/angular-strap.js" data-semver="v2.3.8"></script>
<script src="//mgcrea.github.io/angular-strap/dist/angular-strap.tpl.js" data-semver="v2.3.8"></script>
<script src="//mgcrea.github.io/angular-strap/docs/angular-strap.docs.tpl.js" data-semver="v2.3.8"></script>
</head>
<body ng-controller="MainCtrl">
<h4 class = "myheading">Trigger Popover on Tabbing or Clicking in Password field</h4>
An input for testing Tab:
<input type="text">
<div id="divParent" class="pswd-popover">
Password:
<input type="text" ng-focus="inputHasFocus()" ng-blur="inputLostFocus()" ng-click="inputClicked($event)">
<button>Some Button</button>
</div>
Another input for testing Tab:
<input type="text">
</body>
</html>
还要注意HTML中的细微变化。此版本使用<input ng-click=""，而仅使用标签的代码使用<input ng-mousedown=""。此更改可防止与auto-close: true相关联的闪烁。