Back button with nested states in Angular Router - angularjs

I have an AngularJS application that makes use of the new, state-based ui-router. I have three different views in my application, where one is a top-level views, and the other two are nested ones.
The structure basically is as follows:
/ => Top-level view
/foo => Abstract view, loads a view that contains a ui-view placeholder
/foo/bar => View for the placeholder
/foo/baz => View for the placeholder
The router is set up as following:
app.config(['$urlRouterProvider', '$stateProvider', function ($urlRouterProvider, $stateProvider) {
'use strict';
$urlRouterProvider
.when('/bar', '/foo/bar')
.otherwise('/');
$stateProvider
.state('home', {
url: '/',
views: {
'': {
controller: 'homeController',
templateUrl: '/home/homeLayout.html',
},
'firstHomeView#home': {
templateUrl: '/home/firstHomeView.html'
},
'secondHomeView#home': {
templateUrl: '/homme/secondHomeView.html'
}
}
})
.state('foo', {
abstract: true,
templateUrl: '/foo/fooLayout.html',
controller: 'fooController'
})
.state('foo.bar', {
url: '/foo/bar',
templateUrl: '/foo/barView.html',
controller: 'barController'
})
.state('foo.baz', {
url: '/foo/baz',
templateUrl: '/foo/bazView.html',
controller: 'bazController'
});
The problem is, that basically everything works as expected when you click around or manually type in urls, but that it does not work when using the back / forward buttons of the browser.
E.g., is you go to /foo, you are taken to /foo/bar, as expected. When you then click on a link to go to /foo/baz, everything is fine. Then click a link that takes you to /, and everything is still fine.
If you now hit the back button, you are taken back to /foo/baz (which is correct), but only the /foo/fooLayout.html view is rendered, not its sub-view /foo/bazView.html. The strange thing is now that if you hit the back button again, you are taken to /foo/bar and it renders correctly, including its subview! It seems as if nested views weren't recognized when using the back button, at least, if you enter an abstract view at the same time.
$locationProvider.html5Mode is not enabled, but enabling it doesn't make any difference.
I am using AngularJS 1.0.5 and ui-router 0.0.1-2013-03-20.
Any ideas what might cause this issue, and how I might solve it?

I found the error: In the view fooLayout.html I was using ng-view instead of ui-view. Once I changed that, everything was fine :-)

Related

Navigate back to state without reloading template

I have done some research but couldn't find a definitive answer. I have main application area where I load different screens. From one screen I want to open a page that would cover the whole screen. So, navigating to 'viewreport' does exactly that. And when I click on Browser's Back button or have my own Back button on the whole screen page I want to get back to the previous state without reloading its template and controller. Another words, I want to see all selections I have done prior opening the whole screen page. Here is my state configuration:
$stateProvider
.state('body', {
url: '/',
abstract: true,
template: '<div ui-view />'
})
.state('viewreport', {
url: 'viewreport',
templateUrl: 'wholescreen.html',
controller: 'wholescreenController'
});
I am loading different modules into the main 'body' state which might look like this:
function ($stateProvider) {
$stateProvider.state('body.htmlreports', {
templateUrl: function ($stateParams) {
return 'htmlReports.html';
},
controller: 'htmlReportsController',
url: 'htmlreports',
}).state('body.htmlreports.reportarea', {
templateUrl: 'htmlReportParams.html',
controller: 'htmlReportParamsController',
});
I am navigating to viewreport state from htmlReportParamsController controler. The new page then opens into the whole screen. That part works fine. But navigating back to htmlreports when clicking on the Browser's Back button will reload 'body.htmlreports' state. Is there a way of getting back to it without reloading its template?
Update. Why I think it's not a duplicate.
I tried what's suggested in it before posting. This: $state.transitionTo('yourState', params, {notify: false});
still reloads 'yourState'. Also the use case in the provided link is not exactly as mine. Because the OP uses edit mode for already loaded view while I am loading a new view over the the whole screen.
Thanks
Use
$window.history.back();
Add $window in dependency injections of your controller. This will refresh your page and wont reload data we selected.
Please maintain states like this
function ($stateProvider) {
$stateProvider.state('body.htmlreports', {
templateUrl: function ($stateParams) {
return 'htmlReports.html';
},
controller: 'htmlReportsController',
url: 'htmlreports',
}).state('body.htmlreports.reportarea', {
templateUrl: 'htmlReportParams.html',
controller: 'htmlReportParamsController',
}).state('body.htmlreports.reportarea.viewreport', {
url: 'viewreport'
});

AngularJS - Default view in <ui-view> element

Is there any problem putting default code inside of a <ui-view> element. It appears to work, but I can't find anything saying one way or another if it's okay to use or not.
My current usage is I want the "default" view to be a list of items. Upon clicking one of those items, it switches to an "editor" child state, which replaces the <ui-view> content with the editor child.
Are there any gotchas I should be aware of before continuing with this approach?
Here is an example of what I'm looking at:
routes.js:
.config(($stateProvider) => {
$stateProvider
.state('admin', {
url: '/admin',
templateUrl: 'admin.html'
})
.state('admin.items', {
url: '/admin/items',
templateUrl: 'admin.items.html'
})
});
admin.html:
<ui-view>Default Stuff Here</ui-view>
items.html:
<p ng-repeat="item in items">{{item}}</p>
Now, I know I can do:
.state('admin.default', {
url: '',
templateUrl: 'admin.default.html'
});
And then put that would show in ui-view. However, that needlessly adds a new state and template file, when it seems to work just fine putting the would-be contents of admin.default.html directly into the ui-view of admin.html.
In my case, I'm not talking about a completely stateless option using otherwise(), I'm talking about a defined parent state with a default child state.
We generally do not put anything inside <ui-view></ui-view>, instead we create a default state and use that.
routerApp.config(function($stateProvider, $urlRouterProvider) {
$urlRouterProvider.otherwise('/home');
$stateProvider
.state('home', {
url: '/home',
templateUrl: 'home.html'
})
.state('about', {
// we'll get to this in a bit
});
});
Here the default one is /home, like that you can create a default one.
First, As said in the other answer, we never give any data within the ui-view.. But while dealing with the ui-router, you should give all the specific states in .config()
app.config(function($stateProvider,$urlRouterProvider){
$stateProvider
.state('home',{
url : '/home',
controller: 'homeCtrl',
templateUrl : 'home.html'
}).state('login',{
url : '/login',
controller: 'loginCtrl',
templateUrl : 'login.html'
});
//AND HERE YOU PROVIDE THE DEFAULT PLACE WHERE THE USER IS TO BE REDIRECTED
//IN CASE OF IMPROPER URL
$urlRouterProvider.otherwise('/login');
});
Secondly, If you want to use the <ui-view></ui-view> to hold some data, you certainly can put some data within them.. But make sure that from the state you define, It should not supply any template or templateUrl. So the data within the <ui-view></ui-view> stays as it is.
And third.. Why to keep a default state..
in case you are defining a state admin in your config(), and then in your admin.routes.js file you can define a state as follows..
.state('admin.login',{
url:'',
controller:'loginCtrl',
templateUrl:'admin.login.html'
});
So in case the url is YOURURL/admin It will directly open the login page by default.. so there is no chance of redundancy...

Content disappears when navigating to previous view/state on Ionic app

I've created a starter app with side menu using Ionic based on AngularJS.
The basic navigation layout of the app suppose to be:
main page
ion-side-menu that shows our company's service types as a list. (when item is clicked go to:)
company services list for the chosen type (when item is clicked, go to:)
specific service view
Problem is that when I hit the auto-generated "Back" button from inside a specific service view, and expect to get back to the services list for the chosen type, the app does routes back to the list, he content is seen to about half a second, but then - ALL the content (including the top navbar) is hidden, and though, still clickable!
This also happens not just for the "Back" button but also when clicking a link from the specific service view to any arbitrary services list view.
Since the previous view is seen before disappearing, I conclude that the routing implementation is valid, but yet tried to use ui-route ui-sref and other approaches to navigation but couldn't solve this.
It happens both on chrome browser and android device.
My stateProvider config looks like that:
$stateProvider
.state('app', {
url: '/app',
abstract: true,
templateUrl: 'templates/menu.html',
controller: 'AppCtrl'
})
.state('app.main', {
url: '/main',
views: {
'menuContent': {
templateUrl: 'templates/main.html',
controller: 'MainCtrl'
}
}
})
.state('app.services', {
url: '/services/:tid',
views: {
'menuContent': {
templateUrl: 'templates/services.html',
controller: 'ServicesCtrl'
}
}
})
.state('app.service', {
url: '/service/:sid',
views: {
'menuContent': {
templateUrl: 'templates/service.html',
controller: 'ServiceCtrl'
}
}
})
Would really appreciate any help.

Angular UI Router, Sub views get unset after a change of state

I debated a while on this but I got a Plunk that reproduce it.
I have a state "Contact" that get loaded by default. with $state.transitionTo
Inside that state I have some views, they all get loaded and everything work.
If I click to change the state to "Home" by default or by "ui-sref" and in the "Home" state/template I have ui-sref="contacts". When we click back to set the state to contacts it should work, but all the sub views are now not being called properly.
It seems that when ui-sref call the state this one behave differently that when it is loaded by default.
Why $state.transitionTo(''); seems to work differently than ui-sref.
<script>
var myapp = angular.module('myapp', ["ui.router"])
myapp.config(function($stateProvider, $urlRouterProvider){
// For any unmatched url, send to /
$urlRouterProvider.otherwise("/")
$stateProvider
.state('home', {
templateUrl: 'home.html',
controller: function($scope){
}
})
.state('contacts', {
templateUrl: 'contacts.html',
controller: function($scope){
}
})
.state('contacts.list', {
views:{
"":{
template: '<h1>Contact.List Working wi no Data defined.</h1>'
},
"stateSubView":{
template: '<h2>StateSubView Working</h2>'
},
"absolute#":{
template: '<h2>Absolute item</h2>'
}
}
});
});
myapp.controller('MainCtrl', function ($state) {
$state.transitionTo('contacts.list');
})
Q2:
Why is the Absolute tag that is under contact work when I add the view in the Index, but is not working when it is inside the contact.html file. Absolute reference work only with the Index and not if called everywhere?
"absolute#":{
template: '<h2>Absolute item</h2>'
}
I saw that in index.html you have an empty ui-view tag. What do you expect to go there? I think you can not do this. The router just doesn't know with which state (home or contacts) it should replace. Apparently it picks the second one (contacts). I'd suggest to put url: '/' in the home state and you'll see the difference.
This is for sure one issue.
Other than that:
You can't simply access views from contacts.list in contacts afaik.
The empty ui-view work as a wild card and can be use to switch across multiple route even if we have nested element. But if we have a nested view contact.list it can only be access if we put the whole path in ui-sref="contacts.list" because the list child of contact cannot be access only by using ui-sref="contacts"

Default nested ui-views in ui-router

I'm having trouble with a simple ui-router sample I have set up. I have a company page, whose default sub-state should show CompanyProfile, but it defaults to nothing until I click profile. Once I clicked employees, I have to click profile twice to get it to show again. Ideally I want ui-sref="company()" and ui-sref="company.profile()" to display the same screens. It seems like I'm missing something small..
Here's the plnkr:
http://plnkr.co/edit/A3LHGqQIuRlK1QdjuzrP?p=preview
HTML:
<a ui-sref="company()">company</a>
| <a ui-sref="company.profile()">profile</a>
| <a ui-sref="company.employees()">employees</a>
JS:
$stateProvider
.state('company', {
url: '/',
templateUrl: 'company.html',
controller: 'CompanyCtrl as CompanyCtrl'
})
.state('company.profile', {
url: '',
templateUrl: 'profile.html',
controller: 'CompanyProfileCtrl as CompanyProfileCtrl'
})
.state('company.employees', {
url: '/employees',
templateUrl: 'employees.html',
controller: 'CompanyEmployeesCtrl as CompanyEmployeesCtrl'
});
btw, I'm writing everything as components and decided to define the routes in each component, so you'll find the 3 state definitions in the 3 controllers. I'm not entirely sure this is the best approach or not yet.
The default state is entirely dependent on how you call $urlRouterProvider.otherwise(), passing it a url transitions the application to the particular url, wherein ui-router detects and looks for the very first state it sees.
In your main.js configuration, defines the / url as the default url for the application, which is technically the company state's url and is the very first state in the chain of parent states and children states, making it the default state. This in fact, is also the resulting url for the company.profile state that you wanted your application to default to.
To solve this problem, depends on the use cases for your application.
Use case: If your application defines the company state as a non-navigational state, then setting it to an abstract state solves the problem.
DEMO
CompanyCtrl.js
$stateProvider
.state('company', {
abstract: true,
url: '/',
templateUrl: 'company.html',
controller: 'CompanyCtrl as CompanyCtrl'
});
Use case: If the company state is nagivational, then simply remove the url definition in the company state and change the url defintion for the company.profile state to '/'. The only caveat for this solution would be the loss of the href attribute to be applied for for any anchor tags defined with the ui-sref="company" state which also implies the application of the text cursor. To mitigate this problem you might as well define all anchor tags with ui-sref attribute with a pointer cursor.
DEMO
CompanyCtrl.js
$stateProvider
.state('company', {
templateUrl: 'company.html',
controller: 'CompanyCtrl as CompanyCtrl'
});
CompanyProfileCtrl.js
$stateProvider
.state('company.profile', {
url: '/',
templateUrl: 'profile.html',
controller: 'CompanyProfileCtrl as CompanyProfileCtrl'
})
style.css
a[ui-sref] {
cursor: pointer;
}
UPDATE:
Use Case: The same with use case #2 but making the company state an abstract state.
DEMO
CompanyCtrl.js
$stateProvider
.state('company', {
abstract: true,
templateUrl: 'company.html',
controller: 'CompanyCtrl as CompanyCtrl'
});

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