vue-router: dynamic class when NOT active link - vuejs2

With this code
<router-link
class="button is-success is-rounded is-outlined"
v-for="ro in cRoutes"
v-bind:key="ro.index"
active-class="is-outlined"
:to="ro.path"
>
<span class="icon"><b-icon pack="fas" v-bind:icon="ro.meta.icon" /></span>
<span>{{ ro.name }}</span>
</router-link>
I get a bunch of filled icons (this uses Bulma, but thats not important here) and the icon with the active path is outlined.
Now I would like to have it the other way round: Every Icon should get
the "is-outlined" class except the active icon, which should get no
extra class.
I probably could do something like :class="{'is-outlined' : ro.path !== route.matched.path}" but I would prefer to have the easy approach of the active-class or something similar.

Related

Using dynamic IDs in a string in a VueJS

I'm using a UIKit library for a tab component that listens to a uk-tab property that targets an id. The problem with this, is that it creates the same ID for every tabbed component. I like the UI, but whoever thought of this, didn't think too far into it. I could fix it by making the id dynamic but I am having trouble calling it in the uk-tab property because it is rendering a string. Coming from a react background, I would do a string literal and some JSX, something like #item-${_id}to show #item-12, #item-13....and so on. But That's not working. How can I do this in Vue?
Here is an example of how it works
<div class="mytrigger">
<ul uk-tab="connect: #component-tab-left; animation: uk-animation-fade">
</div>
<div class="mytargetedtab">
<ul id="component-tab-left" class="uk-switcher">
</div>
Here is an example of how what I need
<div class="mytrigger">
<ul uk-tab="connect: #_uid+'switcher'; animation: uk-animation-fade">
</div>
<div class="mytargetedtab">
<ul :id="_uid+'switcher'" class="uk-switcher">
</div>
Check out the dev tools. It should be 810switcher, but instead is taking it as a string
Any ideas? Thanks
I believe what you need is:
<ul :uk-tab="`connect: #${_uid}switcher; animation: uk-animation-fade`">
Or if you prefer not to use backticks:
<ul :uk-tab="'connect: #' + _uid + 'switcher; animation: uk-animation-fade'">
The output will be:
<ul uk-tab="connect: #22switcher; animation: uk-animation-fade">
A few notes:
Using a : is short for v-bind: but don't let the name confuse you. v-bind doesn't necessarily bind anything, it just makes the attribute value a JavaScript expression.
I'd avoid using numbers at the start of element ids, I've seen that cause problems in the past. It'd be better to put the numbers at the end.
The underscore at the start of _uid indicates that it's private to Vue. There are no guarantees about what form it will take or whether it will even exist going forward.
Use data-uk-tab instead of uk-tab like below.
<div class="mytrigger">
<ul data-uk-tab="{connect: `#${_uid}switcher`, animation: 'uk-animation-fade'}">
</div>
<div class="mytargetedtab">
<ul :id="_uid+'switcher'" class="uk-switcher">
</div>
For more information => Switcher with tabs
You can use any javascript expression in a data binding in vue. So, if you bind a string template to the attribute, it'll populate what you expect.
<ul :uk-tab="`connect: #${uid}switcher`'; animation: uk-animation-fade">

Change a page using app-route and paper-icon-button

Based on the starter kit I have created a new app. I would like to link the different pages to a set of icons in the app-toolbar.
I got it working with:
<a href="/main-stream">
<paper-icon-button icon="icons:view-stream"></paper-icon-button>
</a>
But I think I am missing something here. Is there a better way?
in your app-Component you have a variable called page. This variable indicates the current view that is shown. To modify its value you can use the iron-selector like in the demo app.
<iron-selector selected="[[page]]" attr-for-selected="name" class="drawer-list" role="navigation">
<a name="view1" href="[[rootPath]]view1">View One</a>
<a name="view2" href="[[rootPath]]view2">View Two</a>
<a name="view3" href="[[rootPath]]view3">View Three</a>
</iron-selector>
Copied from:https://github.com/PolymerElements/polymer-starter-kit/blob/master/src/my-app.html

Change element type at runtime

Is it possible to dynamically define the type of an element inside a custom components template at runtime?
I'd like to avoid duplication of the inner contents of the button and a element in the following example:
<template>
<button if.bind="!isLinkBtn">
<span class="btn-icon">${icon}</span>
<span class="btn-text">${contentText}</span>
</button>
<a if.bind="isLinkBtn">
<!--
The content is a 1:1 duplicate of the button above which should be prevented
somehow in order to keep the view DRY
-->
<span class="btn-icon">${icon}</span>
<span class="btn-text">${contentText}</span>
</a>
</template>
Is it possible to write something like this:
<template>
<!--
The type of element should be defined at runtime and can be a standard HTML "button"
or an anchor "a"
-->
<element type.bind="${isLinkBtn ? 'a' : 'button'}">
<span class="btn-icon">${icon}</span>
<span class="btn-text">${contentText}</span>
</element>
</template>
I'm aware of dynamic composition with <compose view="${widget.type}-view.html"></compose> but as far as I know, this won't allow me to create default HTML elements but only custom components, correct?
I've asked this question on the Aurelia Gitter where Erik Lieben suggested to use a #processContent(function) decorator, replace the content within the given function and return true to let Aurelia process it.
Unfortunately I don't know how to actually apply those instructions and am hoping for some alternative approaches here or some details about how to actually accomplish this.
Edit
I've created a corresponding feature request. Even though possible solutions have been provided, I'd love to see some simpler way to solve this ;)
When you want to reuse HTML snippets, use compose. Doing so does not create a new custom element. It simply includes the HTML at the location of each compose element. As such, the view-model for the included HTML is the same as for the element into which it is composed.
Take a look at this GistRun: https://gist.run/?id=36cf2435d39910ff709de05e5e1bedaf
custom-link.html
<template>
<button if.bind="!isLinkBtn">
<compose view="./custom-link-icon-and-text.html"></compose>
</button>
<a if.bind="isLinkBtn" href="#">
<compose view="./custom-link-icon-and-text.html"></compose>
</a>
</template>
custom-link.js
import {bindable} from 'aurelia-framework';
export class CustomLink {
#bindable() contentText;
#bindable() icon;
#bindable() isLinkBtn;
}
custom-link-icon-and-text.html
<template>
<span class="btn-icon">${icon}</span>
<span class="btn-text">${contentText}</span>
</template>
consumer.html
<template>
<require from="./custom-link"></require>
<custom-link content-text="Here is a button"></custom-link>
<custom-link is-link-btn.bind="true" content-text="Here is a link"></custom-link>
</template>
You may want to split these into separate elements, like <custom-button> and <custom-link> instead of controlling their presentation using an is-link-btn attribute. You can use the same technique to reuse common HTML parts and composition with decorators to reuse the common code.
See this GistRun: https://gist.run/?id=e9572ad27cb61f16c529fb9425107a10
Response to your "less verbose" comment
You can get it down to one file and avoid compose using the techniques in the above GistRun and the inlineView decorator:
See this GistRun: https://gist.run/?id=4e325771c63d752ef1712c6d949313ce
All you would need is this one file:
custom-links.js
import {bindable, inlineView} from 'aurelia-framework';
function customLinkElement() {
return function(target) {
bindable('contentText')(target);
bindable('icon')(target);
}
}
const tagTypes = {button: 'button', link: 'a'};
#inlineView(viewHtml(tagTypes.button))
#customLinkElement()
export class CustomButton {
}
#inlineView(viewHtml(tagTypes.link))
#customLinkElement()
export class CustomLink {
}
function viewHtml(tagType) {
let result = `
<template>
<${tagType}${tagType === tagTypes.link ? ' href="#"' : ''}>
<span class="btn-icon">\${icon}</span>
<span class="btn-text">\${contentText}</span>
</${tagType}>
</template>
`;
return result;
}
Sorry, I was doing 2 things at once while looking at gitter, which I am not good at apparently :-)
For the thing you wanted to accomplish in the end, could this also work?
I am not an a11y expert or have a lot of knowledge on that area, but from what I understand, this will accomplish what you want. The browser will look at the role attribute and handle it as a link or button and ignores the actual element type itself / won't care if it is button or anchor it will act as if it is of the type defined in role.
Then you can style it like a button or link tag with css.
<a role.bind="type"><span>x</span><span>y</span></a>
where type is either link or button, see this: https://developer.mozilla.org/en-US/docs/Web/Accessibility/ARIA/ARIA_Techniques/Using_the_link_role

vue.js - Change text based on default/clicked class

Given the following:
<div id="#my-container">
<div class="title">Companies</div>
<div class="tab active tab-apple">Apple</div>
<div class="tab tab-google">Google</div>
</div>
When page is loaded without any tab clicks yet, whichever tab with the default active class, needs to go in the .title div. For the example above, <div class="title">Apple</div>
On click of a tab, the class is switched to active, and vue.js needs to update the .title div once again.
How can this be done with vue.js? I've tried but not able to get it to work as intended.
The answer by David is one way to do it. But Vuejs offers in-line computations for this. So, no need to hook into any CSS event. Here's some code to explain:
Create a data property active_tab, just like David mentioned. And then bind it's value just like he's done it. In your tabs, add an click event and at that event, assign appropriate value to active_tab.
<div class="tab active tab-apple" #click="active_tab = Apple">Apple</div>
<div class="tab tab-google" #click="active_tab = Google">Google</div>
Now, to dynamically assign the active class to the respective tab, make the class attribute, a computed property, like this:
<div
:class="['tab', active_tab == 'Apple' ? 'active' : '', 'tab-apple']"
>
Apple
</div>
What this code is basically doing is, :class makes class a computed property. Then the commas in the array divide the statement. So, the computation will always add tab and tab-apple classes. But, only if active_tab == 'Apple' then ? add 'active' else : add ''
Not sure which CSS framework you are using, but normally I hook into the events thrown by the tab switching (many CSS frameworks provide this access). Once hooked into it, you can write a Vue custom directive that will take that event and use it to update a VM attribute that indicates which tab is active.
Then you can use normal mustache templating to get it into your template:
<div class="title">{{ active_tab }}</div>

Hot to find in dojo element when I know id of parent and I know type and style class of element which I looking fo

Hot to find in dojo element when I know id of parent and I know type and style class of element which I looking for ?
For example, I want find and change (span style=tabLabel) ALARMS into Mga alarma
<div dojoattachpoint="focusNode" role="tab" style="-moz-user-select: none;" id="tab_div_tablist_dijit_layout_ContentPane_1" tabindex="-1" title="" aria-selected="false">
<img dojoattachpoint="iconNode" class="dijitIcon dijitTabButtonIcon dijitNoIcon" alt="" src="dojoroot/dojo/resources/blank.gif">
<span class="tabLabel" dojoattachpoint="containerNode" style="-moz-user-select: none;">Alarms</span>
<span role="presentation" dojoattachevent="onclick: onClickCloseButton" dojoattachpoint="closeNode" class="dijitInline dijitTabCloseButton dijitTabCloseIcon" style="display: none;">
<span class="dijitTabCloseText" dojoattachpoint="closeText">[x]</span></span>
</div>
In this case it is pretty easy. If you look at the span element you refer to it has a dojoattachpoint attribute specified. That means that the node can be accessed from the widget directly with that name.
Now I assume that the widget is called "tab_div_tablist_dijit_layout_ContentPane_1" from the id in your code so to get the widget:
var widget = dijit.byId("tab_div_tablist_dijit_layout_ContentPane_1");
And the dojoattachpoint on the span has the value containerNode so:
widget.containerNode.innerHTML = "Mga alarma";
I think that should work.
If you're creating a custom widget template and wish to localize a string, there is a mechanism to do this. Simply use a substitution pattern like ${alarm} and define a javascript property on your widget with that name. That property can then be populated with a localization bundle using dojo.i18n. You can look at some of the dijits like dijit.Dialog.postMixInProperties to see how this is done.