我有一个设置有2个正在查询的文件的轮询程序。当发现新数据时,我正在尝试在视图中设置文本背景的颜色,但这种情况没有发生。
如果有人可以解决这个问题,那就太好了,我也欢迎您提出改善代码结构的建议。
服务:
function Poller($http, $timeout) {
var projectcache = { response: [], calls: 0 };
var msgcache = { response: [], calls: 0 };
var newdata = false;
var msgdata = false;
var msgcolor = {};
var projectcolor = {};
var poller = function () {
$timeout(poller, 10000);
console.log("Begin Poller!");
$http.get('http://localhost/app/controllers/php/getProjects.php')
.then(function(r) {
if (r.data.projects.length > projectcache.response.length) {
newdata = true;
projectcolor = 'green';
} else {
newdata = false;
projectcolor = 'green';
};
angular.copy(r.data.projects, projectcache.response);
console.log("New Data Found: " + newdata);
});
$http.get('http://localhost/app/controllers/php/getMessages.php')
.then(function(m) {
if (m.data.messages.length > msgcache.response.length) {
msgdata = true;
msgcolor = 'green';
} else {
msgdata = false;
msgcolor = 'green';
};
angular.copy(m.data.messages, msgcache.response);
console.log("New Msg Found: " + msgdata);
});
};
poller();
return {
projects: projectcache.response,
messages: msgcache.response,
newdata: newdata,
msgdata: msgdata,
msgcolor: msgcolor,
projectcolor: projectcolor
};
};
看法:
<li ng-class="{active: selectTab=='inbox'}" style="background-color:{{msgcolor}};" ng-click="selectTab='inbox'">Inbox</li>
<li ng-class="{active: selectTab=='projects'}" style="background-color:{{projectcolor}};" ng-click="selectTab='projects'">Projects</li>
控制器:
app.controller("taskbarController", ['$scope', 'authData', '$location', 'projectsModal', 'sendMessageModal', 'Poller',
function ($scope, authData, $location, projectsModal, sendMessageModal, Poller) {
$scope.msgcolor = Poller.msgcolor;
$scope.projectcolor = Poller.projectcolor;
}]);
我的第一个想法是为此使用ng-class。我看到您已经具有ng类来处理“活动”类的显示。
如果您想尝试这种方法,我将:1.为您要更改的每种状态/颜色创建css clase。(可以在外部CSS文件中或在页面开头创建的标记之间执行此操作。
.successBackground {
background-color:green;
}
.errorBackground {
background-color:red;
}
当前HTML:
<li ng-class="{active: selectTab=='inbox'}" style="background-color:{{msgcolor}};" ng-click="selectTab='inbox'">Inbox</li>
<li ng-class="{active: selectTab=='projects'}" style="background-color:{{projectcolor}};" ng-click="selectTab='projects'">Projects</li>
更新的html:
<li ng-class="{active: selectTab=='inbox', successBackground:msgdata===true, errorBackground:msgdata===false}" ng-click="selectTab='inbox'">Inbox</li>
<li ng-class="{active: selectTab=='projects',successBackground:msgdata===true, errorBackground:msgdata===false}" ng-click="selectTab='projects'">Projects</li>
现在,当您更新msgdata时,会根据最新的msgdata值自动更新successBackground和errorBackground。
希望这可以帮助!
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我来说两句