动态主体 class 与 Angular UI-路由器
Dynamic body class with Angular UI-Router
我正在尝试找到一种优雅的方式来动态自定义 class body 标签,我可以从 ui-router configurations
轻松设置如果设置了 none,我可以使用默认选项或 none。
示例:
routes.js
$stateProvider
.state('login', {
url: "/login",
template: 'Login'
})
.state('register', {
url: "/register",
template: 'Register'
}).
.state('profile', {
url: "/profile",
template: 'Profile'
});;
简单标记 HTML
<html>
<body class=""> <!-- Dynamically class to change -->
<div ui-view></div>
</body>
</html>
场景:
1 - 访问 state
login 我应该让 body 的 class 等于 auth
2 - 此时访问 state
register 将具有相同的 auth
class
3 - 访问 state
profile 主体将具有 default class 或 none
你是如何做到的?
您可以有一个主 AppController 来控制它:
<html ng-app="app" ng-controller="AppController as appController">
...
<body class="{{ appController.bodyClasses }}">
AppController 内部:
var vm = this;
vm.bodyClasses = 'default';
// this'll be called on every state change in the app
$scope.$on('$stateChangeSuccess', function(event, toState, toParams, fromState, fromParams){
if (angular.isDefined(toState.data.bodyClasses)) {
vm.bodyClasses = toState.data.bodyClasses;
return;
}
vm.bodyClasses = 'default';
});
在你的路线定义中:
.state('register', {
url: "/register",
template: 'Register',
data: {
bodyClasses: 'auth'
}
});
有关此数据属性策略的更多信息,请参阅 UI Router documentation。
这是与@jmq 使用状态数据的类似方法,但实现为指令而不是控制器。 (该指令的好处是您可以将其应用于任意元素)
示例标记
<body ng-app="app" route-css-classnames>
路由配置 (routes.js)
$stateProvider
.state('login', {
url: "/login",
template: 'Login',
data : {
cssClassnames : 'auth'
}
})
.state('register', {
url: "/register",
template: 'Register',
data : {
cssClassnames : 'auth'
}
}).
.state('profile', {
url: "/profile",
template: 'Profile'
});
指令 (routeCssClassnames.js)
(function () {
'use strict';
angular.module('shared').directive('routeCssClassnames', routeCssClassnames);
function routeCssClassnames($rootScope) {
return {
restrict: 'A',
scope: {},
link: function (scope, elem, attr, ctrl) {
$rootScope.$on('$stateChangeSuccess', function (event, toState, toParams, fromState, fromParams) {
var fromClassnames = angular.isDefined(fromState.data) && angular.isDefined(fromState.data.cssClassnames) ? fromState.data.cssClassnames : null;
var toClassnames = angular.isDefined(toState.data) && angular.isDefined(toState.data.cssClassnames) ? toState.data.cssClassnames : null;
// don't do anything if they are the same
if (fromClassnames != toClassnames) {
if (fromClassnames) {
elem.removeClass(fromClassnames);
}
if (toClassnames) {
elem.addClass(toClassnames);
}
}
});
}
}
}
}());
您也可以将其应用于您的 body 标签或任何您需要的地方。
ng-class="$state.current.name"
这只是使用 ui-router@1.x 转换挂钩的 @JeremyWeir 指令的一个版本。
import angular from 'angular';
class RouteCssClassNamesDirective {
constructor($transitions) {
this.$transitions = $transitions;
this.restrict = 'A';
}
link(scope, element, attrs) {
this.$transitions.onSuccess({}, (trans) => {
const fromClassNames = angular.isDefined(trans.from().data) && angular.isDefined(trans.from().data.cssClassNames) ? trans.from().data.cssClassNames : null;
const toClassNames = angular.isDefined(trans.to().data) && angular.isDefined(trans.to().data.cssClassNames) ? trans.to().data.cssClassNames : null;
if (fromClassNames !== toClassNames) {
if (fromClassNames) {
element.removeClass(fromClassNames);
}
if (toClassNames) {
element.addClass(toClassNames);
}
}
});
}
static create() {
return new RouteCssClassNamesDirective(...arguments);
}
}
RouteCssClassNamesDirective.create.$inject = ['$transitions'];
export default angular.module('shared')
.directive('routeCssClassNames', RouteCssClassNamesDirective.create);
我正在尝试找到一种优雅的方式来动态自定义 class body 标签,我可以从 ui-router configurations
轻松设置如果设置了 none,我可以使用默认选项或 none。
示例:
routes.js
$stateProvider
.state('login', {
url: "/login",
template: 'Login'
})
.state('register', {
url: "/register",
template: 'Register'
}).
.state('profile', {
url: "/profile",
template: 'Profile'
});;
简单标记 HTML
<html>
<body class=""> <!-- Dynamically class to change -->
<div ui-view></div>
</body>
</html>
场景:
1 - 访问 state
login 我应该让 body 的 class 等于 auth
2 - 此时访问 state
register 将具有相同的 auth
class
3 - 访问 state
profile 主体将具有 default class 或 none
你是如何做到的?
您可以有一个主 AppController 来控制它:
<html ng-app="app" ng-controller="AppController as appController">
...
<body class="{{ appController.bodyClasses }}">
AppController 内部:
var vm = this;
vm.bodyClasses = 'default';
// this'll be called on every state change in the app
$scope.$on('$stateChangeSuccess', function(event, toState, toParams, fromState, fromParams){
if (angular.isDefined(toState.data.bodyClasses)) {
vm.bodyClasses = toState.data.bodyClasses;
return;
}
vm.bodyClasses = 'default';
});
在你的路线定义中:
.state('register', {
url: "/register",
template: 'Register',
data: {
bodyClasses: 'auth'
}
});
有关此数据属性策略的更多信息,请参阅 UI Router documentation。
这是与@jmq 使用状态数据的类似方法,但实现为指令而不是控制器。 (该指令的好处是您可以将其应用于任意元素)
示例标记
<body ng-app="app" route-css-classnames>
路由配置 (routes.js)
$stateProvider
.state('login', {
url: "/login",
template: 'Login',
data : {
cssClassnames : 'auth'
}
})
.state('register', {
url: "/register",
template: 'Register',
data : {
cssClassnames : 'auth'
}
}).
.state('profile', {
url: "/profile",
template: 'Profile'
});
指令 (routeCssClassnames.js)
(function () {
'use strict';
angular.module('shared').directive('routeCssClassnames', routeCssClassnames);
function routeCssClassnames($rootScope) {
return {
restrict: 'A',
scope: {},
link: function (scope, elem, attr, ctrl) {
$rootScope.$on('$stateChangeSuccess', function (event, toState, toParams, fromState, fromParams) {
var fromClassnames = angular.isDefined(fromState.data) && angular.isDefined(fromState.data.cssClassnames) ? fromState.data.cssClassnames : null;
var toClassnames = angular.isDefined(toState.data) && angular.isDefined(toState.data.cssClassnames) ? toState.data.cssClassnames : null;
// don't do anything if they are the same
if (fromClassnames != toClassnames) {
if (fromClassnames) {
elem.removeClass(fromClassnames);
}
if (toClassnames) {
elem.addClass(toClassnames);
}
}
});
}
}
}
}());
您也可以将其应用于您的 body 标签或任何您需要的地方。
ng-class="$state.current.name"
这只是使用 ui-router@1.x 转换挂钩的 @JeremyWeir 指令的一个版本。
import angular from 'angular';
class RouteCssClassNamesDirective {
constructor($transitions) {
this.$transitions = $transitions;
this.restrict = 'A';
}
link(scope, element, attrs) {
this.$transitions.onSuccess({}, (trans) => {
const fromClassNames = angular.isDefined(trans.from().data) && angular.isDefined(trans.from().data.cssClassNames) ? trans.from().data.cssClassNames : null;
const toClassNames = angular.isDefined(trans.to().data) && angular.isDefined(trans.to().data.cssClassNames) ? trans.to().data.cssClassNames : null;
if (fromClassNames !== toClassNames) {
if (fromClassNames) {
element.removeClass(fromClassNames);
}
if (toClassNames) {
element.addClass(toClassNames);
}
}
});
}
static create() {
return new RouteCssClassNamesDirective(...arguments);
}
}
RouteCssClassNamesDirective.create.$inject = ['$transitions'];
export default angular.module('shared')
.directive('routeCssClassNames', RouteCssClassNamesDirective.create);