I'm build an Accelerated Mobile Page (AMP) template and was wondering if there is an easy way of toggling a CSS class on tab.
I know about stuff like:
<h2
class="headline"
on="tap:list.toggleVisibility"
>
<ul id="list"></ul>
But this writes inline-styles - I'd rather toggle a custom CSS class but couldn't find an example on the AMP page.
AMP.setState with bindings like <h2 [class]="myclasses"> looked like the way to go but manipulating the state is pretty hard with the tools they give you ...
This can be done via amp-bind. You can use an implicit state variable, e.g. visible, to track the current state. Here is a sample that toggles two classes show and hide:
<button [text]="visible ? 'Show Less' : 'Show More'"
on="tap:AMP.setState({visible: !visible})">
Show More
</button>
<p [class]="visible ? 'show' : 'hide'" class="hide">
Some more content.
</p>
Full sample on JSBIN
There is also an element specific action with AMP Bind toggleClass(class=STRING, force=BOOLEAN)
<script async custom-element="amp-bind" src="https://cdn.ampproject.org/v0/amp-bind-0.1.js"></script>
<h2
class="headline"
on="tap:list.toggleClass(class='my-custom-class')">
<ul id="list"></ul>
Related
I have a button in React which when clicked scrolls the page to the desired location, which is working.
<div className={styles.classB}>
<Button onClick={ScreenMover.MoveToElem} > Extras </Button>
</div>
But I wanted the same onClick feature without a button, say a link and when clicking it should do the same operation. So I have used the below Link button, but it is not taking the onClick instead it goes to the page top based on the to="" attribute.
<div className={styles.classL}>
<Link className={styles.linkButton} onClick={ScreenMover.MoveToElem} to=""> Extras </Link>
</div>
Another thought, if we can not achieve the above one, then can we have a button look like a link by applying some css style to the button? I should be able to override the inherited button styles and instead it should take the link look and feel. Is it possible and can we have a sample css class for it?
Thanks in advance.
The Link object is important for you?
If not you can use a simple <p> tag and the onClick event will working perfectly.
<p className={styles.linkButton} onClick={ScreenMover.MoveToElem}> Extras </p>
I'm about to start a new project using Aurelia and I'm considering to use it in conjunction with CSS BEM methodology.
First question: Is this basically considered a good match or are there any alternatives which "fit" better with Aurelia?
Main question:
Best explained with an example for some custom Aurelia view (an app header):
<template>
<div class="AppHeader">
<span class="AppHeader-logo"></span>
<span class="AppHeader-text"></span>
<app-menu></app-menu>
</div>
</template>
When embedded into another view, this leads to a resulting DOM like this (simplified):
<app-header>
<div class="AppHeader">
<span class="AppHeader-logo"></span>
<span class="AppHeader-text"></span>
<app-menu>
<!-- ... -->
</app-menu>
</div>
</app-header>
Obviously, the wrapper div with the AppHeader class is kind of superfluous since there's also the app-header tag. Unfortunately it doesn't seem to be possible to assign the CSS class AppHeader (which is needed for BEM) to the base element of the view (the template tag in the view file).
Are there any alternative ways that I'm not aware of or is it considered "good" practice (or at least acceptable) to have many wrapper elements inside views which somehow bloat the DOM?
I just realized, that putting custom classes on the custom elements themselves (the template) actually works, so I can simply write something like this:
<template class="AppHeader">
<span class="AppHeader-logo"></span>
<span class="AppHeader-text"></span>
<app-menu></app-menu>
</template>
Edit / Additional info
This won't work if the view is a "base view" of a route since the template element won't be rendered at all in this scenario but is replaced by the router-view element.
I believe that even a hundred extra DOM nodes is not a problem for contemporary browsers but if it's really important to avoid them you may try custom tags instead of classes (see list of restrictions here https://en.bem.info/methodology/faq/#why-are-custom-tags-not-used-for-blocks-in-bem).
Perhaps the #containerless will solve your problems:
In your view model:
#containerless
export class AppHeader {
...
}
In this way, the <app-header> container will not be rendered.
If your component is a view-only component, you can declare containerless in the <template> tag:
<template containerless>
<div class="AppHeader">
<span class="AppHeader-logo"></span>
<span class="AppHeader-text"></span>
<app-menu></app-menu>
</div>
</template>
super css noob here.
I'm using a wordpress plugin called visual composer which allows you to name a Row (it's like a block element) with a Row ID or a Class name. I'm trying to have it so when a user hovers over this row and when they click it, this clicking will simply take them to another page within my website.
It allows for an area to have the css for this class or ID that I can associate with the tag, but after searching I'm either searching the wrong thing or can't find it but I am looking for the css that would allow me to do this!
You can't only use css to link to other page, you need javascript. For example the class name is linkPage:
document.getElementsByClassName('linkPage')[0].onclick = function(){
location.href= 'some url...'
}
<div class="linkPage">linkPage</div>
You'd need to inject a bit of JS into the theme that listens on window for a click with the desired ID or class, then call window.location.href = URL or something of that nature.
CSS doesn't have the power to cause browser location changes.
CSS
CSS (Cascading Style Sheet), as its name states, defines a set of rules and properties for an HTML page you wish to style (stuff like colors, size, asf); and user interaction (even as minor as pointing to an URL) are not part of its scope.
Basic
Talking about a giant like WordPress and a strong plugin such as Visual Composer, extremely old and standard features like link/image/table asf are always to be found. You may have a look at visual composer's "Raw HTML" feature (https://vc.wpbakery.com/features/content-elements/) in combination with a regular "a" tag (http://www.w3schools.com/tags/tag_a.asp).
Editable
Asking how page linking can be achieved through editing of a CSS file, then you might as well look into different editable content types of the plugin - such as HTML or JS.
Click on table row
Best approach to have table cells/rows clickable would be by the use of JavaScript; see Adding an onclick event to a table row
Link using jQuery and Javascript (easier method):
$(".link").click(function(){
window.location.replace('https://www.example.com');
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div class="link">link</div>
<div class="link">link</div>
<div class="link">link</div>
<div class="link">link</div>
<div class="link">link</div>
Link using pure Javascript (harder method):
x = document.querySelectorAll('.link').length;
y = 1;
while (x => y) {
document.getElementsByClassName("link")[y].onclick = function() {
window.location.replace("https://www.example.com");
};
y++;
}
<div class="link">link</div>
<div class="link">link</div>
<div class="link">link</div>
<div class="link">link</div>
<div class="link">link</div>
I'm using jQuery Mobile (jQM) and Knockout.js (ko) to develop an application. In this application, I need to generate a variable number of buttons that are defined by a constantly updating web service.
So, in my markup, I have:
<div id="answerPage-buttons" data-bind="foreach: buttonsLabels">
<button data-role="button" data-inline="true" data-theme="b" data-bind="text: text, click: $root.submitAnswer" />
</div>
buttonLabels is a list of short strings returned from the web service. It's defined as:
self.buttonLabels = ko.observableArray();
This all works fine when the buttons are not "jQM styled". However, when I style them using:
$("#answerPage-buttons").trigger("create");
problems arise during the update.
The issue seems to be that jQM wraps the buttons in a div (with a sibling span) to make them all nice and mobile looking. However, when the ko applies the updates via the bindings, it only removes the tags, leaving the surrounding stuff, and adds new button tags - which are then also styled by the jQM trigger call.
So, I end up with an ever-growing list of buttons - with only the last set being operational (as the previous ones are gutted by the removal of their button element, but all the styling remains).
I've managed to address this, I think, by placing the following call immediately after the observable is updated:
$("#answerPage-buttons div.ui-btn").remove();
However, my feeling is that there's probably a better approach. Is there?
I found a solution.
If I surround the buttons with a div, it seems to work - e.g.
<div id="answerPage-buttons" data-bind="foreach: buttonsLabels">
<div>
<button data-role="button" data-inline="true" data-theme="b" data-bind="text: text, click: $root.submitAnswer" />
</div>
</div>
I'm guessing this is because the markup added by jQM remains "inside" the markup replicated by ko. Without the div, jQM wraps the button tag, which was the immediate child of the tag that contains the ko foreach binding.
I have a DIV tag. Inside the DIV, I have a Table and in a row, I have placed a script code which displays random images which on a click leads to a url.
This is how the script renders inside the Div Tag
<div>
<table>
<tr>
<td>
<script />
<a href="some random url">
<img></img>
</a>
...
When the user hovers over these images, the anchor url shows as a message on browser status bar. This is very misleading for users. I want to know how to use CSS to hide this status message - Cross Browser and display a custom message instead. On the Div, I have given onmouseout and onmouseover, however it does not help.
Can this be done?
See https://developer.mozilla.org/en/DOM/window.status :
This property does not work in default configuration of Firefox and some other browsers: setting window.status has no effect on the text displayed in the status bar. To allow scripts change the the status bar text, the user must set the dom.disable_window_status_change preference to false in the about:config screen.
This is a security feature that you can't realistically bypass.
common users dont know that they should look at that place in the browser window.
but you can hide that message... you can maybe just redirect with javascript
something like this:
<a href="javascript:void(0);" onclick="someredirectfunction('someurl');return false;" >
<img />
</a>
onmouseout and onmouse over are used for events for client side scripting. Those are used "mostly" for a language called ecmascript(javascript). You unfortunately will not be able to do what you are asking with CSS, css is desinged to represent the appearance of a site, HTML the form, and javascript (other scripting sources) the function.