I'm using skrollr to write a website and I need to make some icons appear when the user scrolls the page:
.illustration{
-skrollr-animation-name: icon;
}
#-skrollr-keyframes icon {
300-top {
opacity: 0;
transform: scale(0.2);
}
150-top {
opacity: 1;
transform: scale(1);
}
}
The problem is that I want the icon to appear only one time, so, if the user scrolls up, the icon have not to disappear and then appear again when the user scroll down...
How can I do?
Use this when initializing:
skrollr.init({
beforerender: function(data) {
return data.curTop > data.lastTop;
}
});
Related
I am new to vuejs, I am trying to make my search component to replace my fixed-top navbar when the searchdiv hit the top of the screen while scrolling down, and when I scroll up, the navbar will only appear when the user is on top. I have seen this kind of functionaliy like google search. please see:
This is the normal view:
This is the scrolled view:
and this is mine:
Here is my code:
created() {
window.addEventListener('scroll', this.handleScroll);
},
destroyed() {
window.removeEventListener('scroll', this.handleScroll);
},
mounted() {
console.log("HomeLandingComponent mounted");
},
methods: {
handleScroll() {
let scrollY = window.scrollY
if (scrollY > this.startY) {
this.navbar_visible = false;
} else {
this.navbar_visible = true;
}
this.startY = scrollY;
}
}
what is does is just basically hide the navbar when scroll down and show navbar on scroll up. Is there a way on how to achieve it?
Simple.
Ensure that the search bar comes after the navbar and that the search bar is not nested; then on the search bar, position fixed; z-index: 1; you can use JavaScript to add a new class to give background a new colour.
Shouldn't be too hard. I'll write the code once I'm on my PC.
I'm using vue-toasted to show notifaction.
By default, it pops down to top.
Code:
<v-btn #click="onTest" />
...
onTest() {
this.$toast.info('Test!', {
containerClass: 'toasted-container',
className: 'toasted',
keepOnHover: true,
})
},
nuxt.config.js:
toast: {
duration: 3800,
action: {
icon: 'mdi-close-circle',
onClick: (e, toastObject) => {
toastObject.goAway(0)
},
},
iconPack: 'mdi',
icon: 'mdi-check-circle',
},
The toast pops down to top.
I tried to add some css like transition.
I'm not familiar with CSS, so I guess it's wrong.
How can I change it to right to left?
I couldn't find any info on their GitHub.
vue-toasted v1.1.27 only supports animating upward or downward. It has no API to add new animations.
I added some #keyframes and animation, it worked.
#keyframes in {
0% {
opacity: 0;
left: 100%
}
100% {
opacity: 1;
left: 0%
}
}
.some-class{
animation: in 300ms;
}
To illustrate what I'm trying to achieve but also discuss and learn about each mechanism separately, I split the issue into two independent challenges:
1. Keep previous route visible until new route has transitioned in
Whether the transition is sliding, what I'm trying here, or just fading; mode in-out doesn't work as I would expect it, namely that the existing route stays visible until the next route has finished its transition (e.g. overlaid itself over the previous one), exactly as illustrated here in the last example of this section https://v2.vuejs.org/v2/guide/transitions.html#Transition-Modes, showing two buttons with in-out mode. Instead no transition is happening but it just flips the routes statically at half of the given transition time.
Is there any caveat with routes and an obvious reason why this wouldn't work the same way, e.g. that a single router-view can only hold one at the time and therefore in-out is not possible?
EDIT 1:
I figured out that in-out would actually only work with position:absolute on both elements, otherwise they will not overlay. Any idea how I could elegantly include such a behavior, potentially setting that absolute position during router-transition only?
Current hack that has the visual slide-up modal effect (mode: in-out) I'm looking for: adding style="position:absolute; z-index:2100" to the dialog route. Then I would need to change the underlying transition once it's shown in order to have the reverse hide effect (mode: out-in).
Also see EDIT 2 below.
2. Creating a modal-like page (route) which opens above another existing page when navigated to
I tried to hack that behavior by adding a second router-view in App.vue
<router-view />
<router-view name="dialog" />
The particular component is added to my routes like this
{
path: 'records/new',
components: {
dialog: () => import('layouts/NewRecord.vue')
},
children: [
{
name: 'new-record',
path: '',
component: () =>
import('src/pages/NewRecord.vue')
}
]
}
I'm not sure whether this approach even makes sense but I couldn't make it work properly. The aim would be to just overlay another router-view name="dialog whenever a "dialog"-path is pushed, so while it can be animated (slide-up) the other router-view stays visible below. In the end I guess I'm facing the same issue here: once the route changes, the initial router-view discards its component because the path does not match the current location anymore.
Either way, there are people out there with more experience and expertise so I hope I could illustrate what I'm trying to achieve and I'm just curious and thankful to read your inputs.
EDIT 2
I could make it work the way I wanted with simply one , wrapped in a custom page-transition component. It is quite a hack though AND I needed to add position: absolute to may page-layouts, to all of them actually (both the "leaving" and the "entering" component need position: absolute) when showing the dialog component. I'm sure there's a better way but I haven't found it so far.
Custom page-transition component:
<template>
<transition :name="name" :mode="mode">
<slot/>
</transition>
</template>
<script lang="ts">
import { Component, Watch } from 'vue-property-decorator'
import Vue from 'vue'
import { Route } from 'vue-router'
#Component({
components: {}
})
export default class PageTransition extends Vue {
NAME_FADE = 'fade'
NAME_SLIDE_UP = 'slide-up'
NAME_SLIDE_DOWN = 'slide-down'
MODE_OUT_IN = ''
MODE_IN_OUT = 'in-out'
name = this.NAME_FADE
mode = this.MODE_OUT_IN
#Watch('$route', { immediate: true, deep: true })
onRouteChanged(newVal: Route, oldVal: Route) {
if (newVal.meta.transition === 'dialog') {
this.name = this.NAME_SLIDE_UP
this.mode = this.MODE_IN_OUT
} else if (oldVal && oldVal.meta.transition === 'dialog') {
this.name = this.NAME_SLIDE_DOWN
// shift next page in immediately below dialog
this.mode = this.MODE_IN_OUT
} else {
// default
this.name = this.NAME_FADE
this.mode = this.MODE_OUT_IN
}
}
}
</script>
<style lang="scss" scoped>
.fade-enter, .fade-leave-to {
opacity: 0;
}
.fade-enter-active, .fade-leave-active {
transition: all 0.1s ease;
}
// start of enter element
.slide-up-enter {
transform: translateY(60%);
opacity: 0;
}
.slide-up-enter-active {
transition: all 0.3s ease-out;
z-index: 2100;
}
// start of leave element
.slide-up-leave, .slide-up-leave-active {
opacity: 0;
}
// start of leave element
.slide-down-leave {
z-index: 2100;
}
.slide-down-leave-to {
transform: translateY(60%);
opacity: 0;
z-index: 2100;
}
.slide-down-leave-active {
transition: all 0.3s ease-in;
}
// start of enter element
.slide-down-enter {
opacity: 0;
}
.slide-down-enter-active {
/* show immediately behind existing page (lower z-index) */
transition: all 0s;
}
</style>
I have a similar task. I was able to complete it using fixed containers and z-index shuffle. I met a number of issues related to scroll and vertical alignment, and, in my case, solving it using absolute position during router-transition only was not possible.
Here's the demo: https://kasheftin.github.io/vue-router-in-out-slide-scroll.
Also, I had to use localStorage to keep & restore page scroll position.
In my case page content has to be vertically aligned. That's why I could not use one global scrollable container (e.g. <body>). In-out mode transition works rather simple - it just appends the content, adds some classes and then removes the first child. That means in the middle there're two page containers side by side, and if one of them is tall (and forces the body to have scroll), then the other one appears in the middle of the body and has wrong vertical alignment.
So I just wrapped every page with fixed scrollable container. Assume we have a List and an Item pages, and the last should slide from the right and overlay the list. Then, the right-to-left animation is very simple:
.slide-right-enter-active {
transition: transform 1s ease;
.slide-right-enter {
transform: translateX(100%);
}
Left-to-right animation (overlay disappearing) has the wrong z-index. During the animation we have the following in the DOM:
<transition>
<Item />
<List />
</transition>
By default List will be shown over the Item, but it has to be below. So there're the rules:
.slideable-page {
position: fixed;
overflow: auto;
z-index: 2;
}
.slide-left-enter {
z-index: 1;
}
.slide-left-enter-active {
z-index: 1;
}
.slide-left-leave-active {
transition: transform 1s ease;
z-index: 3;
}
.slide-left-leave-to {
transform: translateX(100%);
}
For question 1: Have you added the CSS with it? The transition by itself only handles timing, you need to add the CSS for the transition to work (example: https://v2.vuejs.org/v2/guide/transitions.html#Transitioning-Single-Elements-Components).
.fade-enter-active, .fade-leave-active {
transition: opacity .5s;
}
.fade-enter, .fade-leave-to /* .fade-leave-active below version 2.1.8 */ {
opacity: 0;
}
For question 2:
I don't know if I understood correctly your situation, but if I did, here is what I would do, using nested routes.
layouts/NewRecord.vue
<template>
<router-view name="dialog"></dialog>
</template>
Routes
const routes = {
path: 'records/new',
component: () => import('layouts/NewRecord.vue'),
children: [
{
path: 'dialog',
components: {
dialog: () => import('src/pages/NewRecord.vue'),
},
},
],
}
I have a page that's utilizing jQuery navigation buttons that should slide content into view when each is clicked. However, when another button is clicked, I need the currently viewed content to slide back out of view before the new content slides into view.
This is what I've done so far:
$("#rules-btn").click(function () {
var effect = 'slide';
var options = { direction: 'left' };
var duration = 700;
$('#rules-pane').toggle(effect, options, duration);
});
Here's my jsfiddle that shows how it acts now. Can anyone tell me how to hide currently viewed content when another button is clicked? Thanks.
By the way, I'm very new to jQuery...
Demo: http://jsfiddle.net/e6kaV/6/
HTML:
<div id="rules" class="pane-launcher"></div>
<div id="rules-pane" class="pane"></div>
<div id="scenarios" class="pane-launcher"></div>
<div id="scenarios-pane" class="pane"></div>
JS:
$(".pane-launcher").click(function () {
// Set the effect type
var effect = 'slide';
// Set the options for the effect type chosen
var options = { direction: 'left' };
// Set the duration (default: 400 milliseconds)
var duration = 700;
$('.pane.active, #'+this.id+'-pane').toggle(effect, options, duration).toggleClass('active');
});
CSS:
.pane-launcher{
position:absolute;
top: 0;
width:20px;
height:20px;
background-color:#000;
display:block;
}
#rules {
left:0px;
}
#scenarios {
left:40px;
}
.pane{
position:absolute;
left: 0;
height:50px;
display:none;
opacity:0.5;
}
#rules-pane {
top:50px;
width:200px;
background-color:#999;
}
#scenarios-pane {
top:60px;
width:170px;
background-color:#F00;
}
Remember: instead of dealing with lots of ids, it's better to use classes, both to add styles and event handlers.
I am trying to create a menu which is hidden but appears, fixed to the top, once the user begins scrolling down the page. So far I have managed to create a menu which sticks to the top upon scrolling but am stuck on how to hide this menu initially.
This is the code I am using so far:
(I am using wordpress-headway)
JQuery:
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<script type="text/javascript">
jQuery(document).ready(function($) {
//STICKY NAV
var isMobile = {
Android: function() {
return navigator.userAgent.match(/Android/i) ? true : false;
},
BlackBerry: function() {
return navigator.userAgent.match(/BlackBerry/i) ? true : false;
},
iOS: function() {
return navigator.userAgent.match(/iPhone|iPad|iPod/i) ? true : false;
},
Windows: function() {
return navigator.userAgent.match(/IEMobile/i) ? true : false;
},
any: function() {
return (isMobile.Android() || isMobile.BlackBerry() || isMobile.iOS() || isMobile.Windows());
}
};
//Calculate the height of <header>
//Use outerHeight() instead of height() if have padding
var aboveHeight = $('.top-row').outerHeight();
//when scroll
$(window).scroll(function(){
//if scrolled down more than the header’s height but this isn't mobile
if ($(window).scrollTop() > aboveHeight && !isMobile.any()){
// if yes, add “fixed” class to the <nav>
// add padding top to the #content
// (value is same as the height of the nav)
$('.block-type-navigation').addClass('fixed').css('top','0').next()
.css('padding-top','42px');
} else {
// when scroll up or less than aboveHeight,
// remove the “fixed” class, and the padding-top
$('.block-type-navigation').removeClass('fixed').next()
.css('padding-top','0');
}
});
});
</script>
CSS:
.fixed {
position:fixed !important;
left: 0;
text-align: center;
}
.fixed .block-content {
display: inline-block;
text-align: left;
width: 940px; /* This should be the width of your grid!!! */
float:none;
}
.fixed {
position:fixed !important;
left: 0;
text-align: center;
display: block !important;
}
It's driving me crazy so I'd appreciate ANY help!
Thank you!
If you don't want the nav to show unless the user has scrolled passed a certain point then couldn't it always be fixed just off the top of the screen:
.menu {
position:fixed;
top:-42px;
}
then shown or hidden by toggling a class
.menu.is-visible {
top:0;
}
using a scroll listener.
$win = $(window);
$win.on('scroll', function() {
$(".menu").toggleClass('is-visible', $win.scrollTop() > 42);
});
You could even add some CSS animation to the top property
.menu {
-webkit-transition: top 0.2s ease-in-out;
}
to get a cool transition.
Note: All this code is typed out right in here and not tested.
Note: You should definitely put a throttle on the scroll handler too.