Hook on UI-Router that triggers after the template has been retrieved and added to the DOM

Question

Hook on UI-Router that triggers after the template has been retrieved and added to the DOM

We are faced with the challenge of supporting a legacy module that requires synchronous code to run after templates have been fetched and attached to the DOM.

As we transition from our custom router to UI-Router, we have successfully resolved the route and fetched the templates. However, we are struggling to find a way to hook into the process after the templates are loaded.

Project Details:

UI-Router: 1.0.0-rc.1
Angular: 1.5.8

We have experimented with the onSuccess hook, where we return a resolved promise and chain it with a then callback. Unfortunately, this approach is still within the transition lifecycle and the templates have not yet been attached to the DOM. The same issue persists when utilizing resolve blocks in the state definition.

Although using a timeout after onSuccess does work, it is not the ideal solution.

While we do have redux-ui-router at our disposal, dispatching a thunk when onSuccess is triggered would require additional refactoring for the older module.

If you have any insights or suggestions on how to address this issue, we would greatly appreciate it.

Thank you!

javascript angularjs angular-ui-router

Answer 1

Answer №1

You're making progress by utilizing the onSuccess method. This hook is triggered when a state-machine transition is successfully completed. UI-Router effectively syncs views using the onSuccess method with the default priority set to 0. Once the views are synced, the templates are compiled and inserted into the DOM.

By setting up an onSuccess hook with a slightly lower priority, your hook will be executed after the view syncing process is completed.

app.run(function($transitions) {
  $transitions.onSuccess({}, yourhook, { priority: -1 } )
});

It's important to note that AngularJS template rendering is inherently asynchronous due to the digest loop.

Check out this plunker that showcases both points:

debugger statements are placed before and after view synchronization
template variable interpolation occurs only after the digest cycle finishes

http://plnkr.co/edit/OpKexobSQ6WTrP87k4Tb?p=preview

Answer 2

You're making progress by utilizing the onSuccess method. This hook is triggered when a state-machine transition is successfully completed. UI-Router effectively syncs views using the onSuccess method with the default priority set to 0. Once the views are synced, the templates are compiled and inserted into the DOM.

By setting up an onSuccess hook with a slightly lower priority, your hook will be executed after the view syncing process is completed.

app.run(function($transitions) {
  $transitions.onSuccess({}, yourhook, { priority: -1 } )
});

It's important to note that AngularJS template rendering is inherently asynchronous due to the digest loop.

Check out this plunker that showcases both points:

debugger statements are placed before and after view synchronization
template variable interpolation occurs only after the digest cycle finishes

http://plnkr.co/edit/OpKexobSQ6WTrP87k4Tb?p=preview

Answer 3

Answer №2

Even though Chris T provided a great solution for fetching a single template, we needed to fetch multiple templates. In the end, we decided to utilize the resolve block.

resolve: {
            templates: ['$q', '$templateRequest', function ($q, $templateRequest) {
                    return $q.all([
                        $templateRequest('../template2.html'),
                        $templateRequest('../template3.html')
                    ]);
                }]
        },

After that, we initialized the process upon successfully resolving the promises.

Answer 4

Even though Chris T provided a great solution for fetching a single template, we needed to fetch multiple templates. In the end, we decided to utilize the resolve block.

resolve: {
            templates: ['$q', '$templateRequest', function ($q, $templateRequest) {
                    return $q.all([
                        $templateRequest('../template2.html'),
                        $templateRequest('../template3.html')
                    ]);
                }]
        },

After that, we initialized the process upon successfully resolving the promises.

Hook on UI-Router that triggers after the template has been retrieved and added to the DOM

Answer №1

Answer №2

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