[英]Add pseudo class to a custom template / directive in angular
我正在創建一個自定義下拉菜單的指令。 常規HTML選擇具有可使用CSS設置樣式的偽類活動類(例如.mydropdown:active)。 下拉菜單打開時,選擇保持激活狀態。 我想將此功能添加到我的指令中。 我的模板基於按鈕。 按鈕的默認行為是在單擊(鼠標向下)時變為活動狀態,因此當下拉列表處於打開狀態時,它們將不再處於活動狀態。
下拉菜單處於活動狀態時的外觀如下:
這是我與之互動時的樣子,並且該按鈕不再處於活動狀態。 我希望按鈕在下拉列表關閉之前保持活動狀態:
這是我的指令的代碼:
var app_dropdowns = angular.module('dropdown.directives', ['offClick']);
app_dropdowns.directive('dropdownMultiselect', function() {
return {
restrict: 'E',
scope: {
model: '=',
options: '=',
labelname: '@labelname',
pre_selected: '=preSelected'
},
template: "<div class='btn-group' data-ng-class='{open: open}' off-click='open=false'>" +
"<button class='btn dropdown-toggle dropselect' active='true' data-ng-click='openDropdown();'>{{labelname}}<span class='caret' style = 'margin-left: 20px;'></span></button>" + "<ul class='dropdown-menu' style = 'min-width: 300px;' aria-labelledby='dropdownMenu'>" + "<li><a data-ng-click='selectAll()'><i class='fa fa-check-square-o'></i> Select All</a></li>" + "<li><a data-ng-click='deselectAll();'><i class='fa fa-square-o'></i> Select None</a></li>" + "<li class='divider'></li>" + "<li data-ng-repeat='option in options'> <a data-ng-click='setSelectedItem()'>{{option.name}}<span data-ng-class='isChecked(option._id)'></span></a></li>" + "</ul>" + "</div>",
controller: function($scope) {
$scope.model = [];
$scope.options = [];
$scope.openDropdown = function() {
console.log($scope.options.length)
if (!$scope.open && $scope.options.length > 0){
$scope.open = true;
} else {
$scope.open = false;
}
};
$scope.selectAll = function() {
$scope.model = [];
angular.forEach($scope.options, function(item) {
$scope.model.push(item);
});
console.log($scope.model);
};
$scope.deselectAll = function() {
$scope.model = [];
console.log($scope.model);
};
$scope.setSelectedItem = function() {
var _id = this.option._id;
var index = -1;
var i = 0;
angular.forEach($scope.model, function(item) {
console.log(_id);
console.log(item._id);
if (item._id == _id) {
index = i
}
i = i + 1;
});
if (index > -1) {
$scope.model.splice(index, 1);
} else {
$scope.model.push(this.option);
console.log($scope.model);
}
return false;
};
$scope.isChecked = function(_id) {
var index = -1;
var i = 0;
angular.forEach($scope.model, function(item) {
if (item._id == _id) {
index = i
}
i = i + 1;
});
if (index > -1) {
return 'fa fa-check pull-right';
}
return false;
};
}
}
});
我正在為dropselect類創建CSS:
.dropselect,
.dropselect:hover
{
height: 45px;
background-color: #ffffff;
border: 2px solid #dce4ec;
border-radius: 4px;
color: #2c3e50;
font-size: 15px;
line-height: 1.42857143;
padding: 10px 15px;
margin: 0;
position: relative;
display: inline-block;
vertical-align: middle;
}
.dropselect:active,
.dropselect:focus {
height: 45px;
background-color: #ffffff;
border: 2px solid black;
border-radius: 4px;
color: #2c3e50;
font-size: 15px;
line-height: 1.42857143;
padding: 10px 15px;
margin: 0;
position: relative;
display: inline-block;
vertical-align: middle;
}
這是一個進一步解釋的小提琴: https : //jsfiddle.net/krd3y6dx/7/
我想到了。 訣竅是添加一個具有與所需活動狀態相同的CSS的新類,然后在下拉列表打開時使用ng-class有條件地應用該類。
小提琴: https : //jsfiddle.net/krd3y6dx/9/
CSS:
.dropselect:active, .dropselect:focus, .dropactive {
height: 45px;
background-color: #ffffff;
border: 2px solid black;
border-radius: 4px;
color: #2c3e50;
font-size: 15px;
line-height: 1.42857143;
padding: 10px 15px;
margin: 0;
position: relative;
display: inline-block;
vertical-align: middle;
}
和html模板:
template: "<div class='btn-group' data-ng-class='{open: open}'>" +
"<button class='btn dropdown-toggle dropselect' ng-class='{dropactive: open}' data-ng-click='openDropdown();' ng-disabled = 'options.length == 0'>{{labelname}}<span class='caret' style = 'margin-left: 20px;'>...
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