Vue, sharing child components from one parent component to the other - vue.js

this is a question about best practices, in short: what is the best way to implement this function
I used the vue cli to create a project to train on. And so the normal template it provided me with was a side header thing with the content on the side, and so I made some modifications:
the issue is visualized down if the text explaination wasn't clear
and so what I had in mind was to add a slot in the header "the left side" to add the adding button, and the button wouldn't need to be visible in the other tabs, like the help tab.
App.vue
<template lang="pug">
TheHeader
routerView( v-slot="{ Component }" )
transition( name='slide-fade' mode='out-in' )
component( :is="Component" )
</template>
but here comes the issue, as you can see the tabs are in router views and the router view is beside the header component. the solution I had in mind was to:
add a list of strings in the App.vue with ["help", "course", ...] in the script section
the strings are linked to what router is being used (not very sure how to do this but I guess I could do a v-model to the v-slot being used)
pass the string to the header component
include a v-if statement with every tab's little widget
but I felt like this alone will jank the code a lot and thought if maybe there was an easier way to pass an entire component from one child to another it would be great. if there isn't I'd just like to know if it's the best practice I could do and proceed with this solution
issue visualization:
wanted behavior mock-up:

the solution was to use the Built In <Teleport> Vue component. this way I just type <Teleport to="..."> and it will go where I want

Related

Vue component communication between header component and components in the router-view

Im facing a problem for my VUE app, Im using the vue Router to navigate to my component
In my Header component I use router-link to navigate to a Home component
The problem is :
In my Header component I would like a checkBox (a boolean variable) that change the content of my Home component (rendered in the router-view) like a v-if that would check the boolean variable in the Header
Here is my App.vue template I was trying to solve the problem through emits but Im Kinda stuck for passing data inside a component (inside the router-view)
<template>
<div class="content">
<HeaderComponent #eventCheckBox="handleCheckBox" />
<router-view />
<FooterComponent />
</div>
Do you guys have already faced this issue, is there a way to do it the classic way or should I try plugins like Portal or Teleport ?
Portal and Teleport are the same, just a different name (teleport in Vue3, being the official name).
As of the rest of the question, this explains it very well: https://stackoverflow.com/a/49702934/8816585
Mainly, you need to see if you need to use a store like Pinia (recommended one) and Vuex. Most of the time, you could use a parent/child relationship. Here is another article explaining when you would need something like that: https://markus.oberlehner.net/blog/should-i-store-this-data-in-vuex/#alternatives-to-storing-data-in-vuex
In Vue3, you could even not use a store and rely solely on the singleton pattern + composables (again, a lot of articles are available for that one).
TLDR: use your Vue devtools and inspect the state flowing.
If you need more, reach for more powerful tools.

Vue force all children components to render

I’m using Vue & Vuetify to create my app. With vuetify I’m using v-expansion-panels to create an accordion style display. Each v-expansion-panel itself contains a custom component.
I have noticed these components are not created until the expansion panel is clicked for the first time. After that, using keep-alive allows all reactive properties and methods of the child component to be active (this is my desired behavior).
How can I force the child components to be created when the parent is created? This, any method triggered in the created() lifecycle hook of a child component should fire when the parent is created.
This Codepen is an example of the current behavior. Note: be sure to look at the console when you click the panel.
If you think about it, it actually makes sense to lazy load content of expansion panels since it is useless work if the user never opens them anyway. So probably the thing you try to accomplish has some better approach, but if you still like it then my advice is to find a way of programatically opening / closing the panel (as seen here) and quickly open it and close it when rendering parent component. In this way, you will have your child component created and the UI will remain the same.
A Vuetify solution should be achievable by adding the eager prop to a v-expansion-panel-content element in the Expansion Panel. This should force any components or content contained within the v-expansion-panel-content element to render on mounted.
<v-expansion-panels v-model="panels">
<v-expansion-panel>
<v-expansion-panel-content eager>
<custom-component />
</v-expansion-panel-content>
</v-expansion-panel>
</v-expansion-panels>

Is it possible in Vue to programatically wrap an element or component with a transition using a custom directive or render function?

To make code more simple/clean for me and my designers, I'd like to be able to do something like below. Is it possible - using a custom directive or render function to implement this with a simple attribute?
This would really help separating animation from structure and functionality, which I think could be helpful in many cases. I figure render functions can easily wrap an element with other HTML elements, but can they wrap elements (or components) with custom Vue transitions?
This:
<template>
<my-component custom-transition></mycomponent>
</template>
Becomes this:
<template>
<custom-transition>
<my-component></mycomponent>
</custom-transition>
</template>
Or maybe bring it up on Github?
Thanks!
A Vue forum member provided a great solution for me in this thread using dynamic components. Happy!

Vue Router sub components

I have a website consisting of a Sitemap like this:
Home
About
Golf
-- Course one
-- Course two
Work
-- Work one
-- Work two
Contact
So Work.vue is laid out like this
<header></header>
<carousel></carousel>
<work-one</work-one>
<work-two></work-two>
<footer></footer>
My question in my main navigation above if I click the sub navigation item Work two how I then go to the Work page and scroll to the Work two component or even better if the work two component would load first and the work one component would load under it.
Really hope I am making sense but basically I want to be able to link to specific parts of a vue Page component which contains other components also.
Thanks
If I understand you correctly, this doesn't really have much to do with Vue or Vue router as it does simple html.
You can use anchor tags for this (http://www.echoecho.com/htmllinks08.htm):
Simply put, in each components html have something like
<a name="work-one"></a>
Then, when you want to link to that specific component on that page, you can do:
Link Text
Or the Vue Router way:
<router-link to="yoursite.com/your-main-page-link#work-one">Link Text</router-link>

Aurelia: How can I modify sidebar content from inside a router view?

I'm trying to wrap my head around how "inner components" can adjust the content of "outer components". Let's say I have an application template that looks something like this:
<template>
<div class="sidebar">
<div>Some app-wide content</div>
<div>
<!-- I want to put some view-specific content here -->
</div>
</div>
<div class="main-body">
<router-view></router-view>
</div>
</template>
Each subview wants to render different content to the sidebar. Obviously this would be easy if the subview included the sidebar area itself, but let's say it is important to preserve the structure and we don't want to replicate the boilerplate of the sidebar across every view.
Is there any way for a child view to declare "export this extra component for display in another place?" I imagine something like injecting the parent view and calling a method on it, but I can't figure it out from the documentation.
Simple demo:
It's fairly simple, actually. Just import and inject your sidebar or any other viewmodel and call a method or update a property.
https://gist.run/?id=745b6792a07d92cbe7e9937020063260
Solution with Compose:
If you wanted to get more elaborate, you could set a compose view.bind variable to that your sidebar would pull in a different view/viewmodel based on the set value.
https://gist.run/?id=ac765dde74a30e009f4aba0f1acadcc5
Alternate approach:
If you don't want to import, you could also use the eventAggregator to publish an event from the router view and subscribe to listen to that event from your sidebar and act accordingly. This would work well for a large app setting where you didn't want to tie them too closely together but wanted the sidebar to react correctly to unpredictable routing patterns by always responding when triggers were published.
https://gist.run/?id=28447bcb4b0c67cff472aae397fd66c0
#LStarkey's <compose> solution is what I was looking for, but to help others I think it's worth mentioning two other viable solutions that were suggested to me in other forums:
View ports. You can specify multiple named router views in a template and then populate them by passing in a viewPorts object to the router instead of specifying a single moduleId. The best source of documentation is a brief blurb in the "Cheat Sheet" of the Aurelia docs.
Custom elements. It's a little more "inside-out" but you could define most of the outer content as a custom element that has slots for the sidebar and the main body; each child view would define this custom element and pass in the appropriate pieces.