Is there an "easy" way to render a custom element in ag-grid header cell? The headercomponent interface seems like an overly cumbersome approach to a seemingly simple problem and I have not been successful with this approach. The closest I have come is to use something like:
header-cell-render.bind="myHeaderRenderer"
which is currently a function returning a string of HTML. While this "works" (though I understand it is deprecated), in the sense that the html is injected into the DOM, only primitive HTML renders. Meaning I can return something like:
<input type="checkbox" />
and it will render a checkbox, but I cannot return something like:
<my-custom-element></my-custom-element>
I can see that markup in the DOM, but the element doesn't "process", that is the Aurelia aspect of the control is not executed.
I am using the latest versions of ag-grid, ag-grid-aurelia.
Any help would be greatly appreciated.
This is currently not possible out of the box with ag-grid-aurelia.
This is because ag-grid-aurelia makes no special handling for this binding. The proper way to handle this is using replaceable parts which allows you to specify a template for Aurelia to inject and consume. ag-grid makes this a bit harder since it seems the only native tool for injecting content into the header is by passing an HTML string or an HTML element in the column configuration. This can likely be added to the ag-grid-aurelia library by using a combination of replaceable parts and the #children decorator to gain access to the aurelia-rendered header element and pass it to the column configuration.
Related
I have a custom renderer for a column in DataTables. As you would know, DataTables expects the custom renderer to return a literal representation of what you would like to display on that column. Something like:
return '<div class="fancy">' + somevalue + '</div>';
I am already using this approach but I wonder how I could do it better. Like for example saving the template somewhere and returning it cloned. Consider this custom column rendering returns a big nested element. Is it still wise and ok to return it just like how it is now? Or is it better to use other approaches like HTML5 templating (with querySelector()) or jQuery .clone() method? Though either of these methods can't return a literal representation but only a node or a DocumentFragment which must be appended to the DOM before use. But are they still viable options here?
Things to consider here is maybe reducing the DOM footprint? Client-side and/or server-side performance? Better coding approaches?
Somehow I still can't wrap my head around some core vue concepts.
I have made some simple webpage using phalcon. Created it so, that it would work without JS and now is the time to add some bells and whistles - ajax queries and the like, for the user experience to be better.
I wanted to do everything using vue, to see how it all adds up. But after hours of googling I still can't find solution for the simplest of tasks.
Say: I want to get a text paragraph in a series of <li>-s and change it somewhat. Maybe make excerpt of it and add 'see more' button behind it. Now, in jQuery I would just iterate with each() and perform the tasks. With vue targeting set of DOM elements is much harder for me, probably because of whole paradigm being "the other way round".
I know I could iterate with v-for, but these elements are already in the DOM, taken from the database and templated with volt. I had even this wild idea of creating .js files from phalcon, but it would completely negate my strategy of making functional webpage first and then enhance it progressively.
Frankly speaking I feel like I'm overcomplicating for the sake of it, right now. Is vue even fit for a project like this, or is it exclusively a tool to build app from the ground up?
Vue's templating is client-side, which means if you are delivering an already templated html page (by your backend) there is little vue can still do for you. Vue needs data, not DOM elements to build its viewmodels.
This becomes pretty obvious when building a single page application for example, which would be rendered only on the client-side. You'd simply load the data asynchronously from a backend api (REST for example) and then do all the rendering on the client.
As far as I understand your usecase you want to mix client and server side rendering, rendering most of the non-interactable content using your backend's templating engine and adding some interactivity using vue. In this case you'll need to add some vue components (with their own rendering logic) to your backend template and pass data to that component using vue's data-binding.
Here's an example:
...
<div id="app">
<my-vue-list :products="{% products %}"></my-vue-list>
</div>
...
And in your JS:
var app = new Vue({
el: '#app',
data: {
components: {MyVueList} // You will have to register all the components you want to use here
}
})
Vue provides the ref attribute for registering a reference to a dom element or child component:
// accessible via this.$refs.foo
<li ref="foo">...</li>
Do note, however, that refs are not reactive, as stated in the docs:
$refs is also non-reactive, therefore you should not attempt to use it in templates for data-binding.
I am currently developing a web application that is used to display elements for events on a map provided by HERE Maps. I am using Vue.
I have some components, but the relevant component is the component HereMaps.vue which initializes the map using the HERE Maps Api.
The HERE Maps Api provides the possibility to place so called InfoBubbles on the map showing additional information. These InfoBubbles can be provided some HTML-code in order to customize their appearance.
Please refer to the documentation for additional information
Following the documentation the code looks something like this:
let bubble = new H.ui.InfoBubble(marker.getPosition(), {
content: "<div class='someClass'>Some Content</div>"
});
this.ui.addBubble(bubble)
This is happening after mount in the "mounted" method from Vue in the "HereMaps" component.
The Bubbles are added in a "closed" (hidden) form and dynamically "opened" to reveal their content when the corresponding marker icon on the map is clicked. Therefore the HTML-code is present on the DOM after the component is mounted and is not removed at a later stage.
Now instead of supplying custom code within each bubble added to the UI i want to just add a component like this:
let bubble = new H.ui.InfoBubble(marker.getPosition(), {
content: "<myDynamicComponent></myDynamicComponent>"
});
this.ui.addBubble(bubble)
It does not matter to me wether the component is initialized using props or if it is conditionally rendered depending on the state of a global variable. I just want to be able to use the "myDynamicComponent" in order to customize the appearance in a different file. Otherwise the design process gets very messy.
As far as i know this is not possible or at least i was not able to get it work. This is probably due to the fact that the "myDynamicComponent" is not used within the "template" of the "HereMaps" component und thus Vue does not know that it needs to render something here after the directive is added to the DOM in the "mounted" method.
This is what the InfoBubble looks using normal HTML as an argument:
This is what the InfoBubble looks using the component as an argument:
It appears to just be empty. No content of the "myDynamicComponent" is shown.
Does anyone have any idea how i could solve this problem.
Thank You.
Answer is a bit complicated and I bet you wouldn't like it:)
content param can accept String or Node value. So you can make new Vue with rendered your component and pass root element as content param.
BTW, Vue does not work as you think, <myDynamicComponent></myDynamicComponent> bindings, etc exists in HTML only in compile time. After that all custom elements(components) are compiled to render functions. So you can't use your components in that way.
Give us fiddle with your problem, so we can provide working example:)
I have an Aurelia application in which I'm trying to build a CMS component. This component will load data from the server and this data mainly contains slug, title and content fields.
I also have several global components defined in my application, and I want to be able to use those components in the server so when I pull that data my CMS component is able to transform/compile those custom elements.
An example would be a tab component. I have the tab component with this structure defined:
<tab-panel>
<tab title="First"></tab>
<tab title="Second"></tab>
</tab-panel>
The CMS component will contain a content property which I use to pass a string like this: '<tab-panel><tab title="First"></tab><tab title="Second"></tab></tab-panel>'
The component needs to compile that string and render it in its view. I've checked the enhance API, but it doesn't worked, at least for me. Any other suggestion to dynamically compile/render custom elements??
Thanks a lot in advance.
I've found the solution. I've used a compose element and InlineViewStrategy and it worked well, the components are shows and binding works as expected.
If your custom elements are registered globally using globalResources you can actually using the TemplatingEngine to dynamically insert content into the DOM and then compile it after-the-fact. This blog post goes into detail in how you can do it.
However, I would use this as a last resort. As is mostly always the case, there are much better ways to do something in Aurelia. Using the <compose> element is a great way to dynamically render content in your Aurelia applications and should always be the first port of call.
I was experimenting with Dojo and Dijit in the past days and I find it quite interesting. I was however trying to find a reference or an API doc that helps me understand all the properties I can assign to widgets and containers.
For example a Tab with a Save Icon will be like this:
<div data-dojo-type="dijit.layout.ContentPane" title="Group Two" data-dojo-props="iconClass: 'dijitEditorIcon dijitEditorIconSave'">
Now, where can I find what to put in the "data-dojo-props" property? Where can I find for example all the list of icons?
My main question would be for example on how to create a vertical menubar, but beyond odd examples scattered here and there, the api reference is not much helpful...
Any help? Am I missing something here?
For this kind of situation, the trick is learning how to convert between the programmatic Javascript style and the declarative HTML style (and sometimes also between the old declarative style, without data).
For the new declarative style, basically the only "real" argument now is data-dojo-props and it consists of an object that will be passed to the widget constructor.
//programatic style
new dijit.myWidget({foo:'a', bar:'b'});
//declarative style
<div data-dojo-type="dijit.myWidget" data-dojo-props="foo:'a', bar:'b'"></div>
You can find what properties an widget accepts by checking the corresponding widget documentation and looking for either declarative or programmatic examples (now that we know how to convert between them). If that is not enough, you can also check the source code - it is usually very well commented and is where api.dojotoolkit.org gets its data from anyway.