My web app shows body background for a second then it loads the dynamic background when i route from one page to another. I am trying to remove that white flash by adding a splash screen using AngularJS. I looked at some tutorials but were not able to find exact solution.
how do i avoid showing the white body background before my div background loads?
any suggestions?
HTML
<body class="hold-transition skin-blue sidebar-mini sidebar-collapse">
<div class="wrapper" ng-style="{'background': backgroundImg}" >
<div class="content-wrapper">
<section class="content">
<div ng-view></div>
</section>
</div>
</body>
my route
$routeProvider.when('/about',{
templateUrl:'partials/about.php',
controller: 'pageController'
});
My controller
app.controller("pageController",function($scope, $rootScope){
$scope.title = "About Us";
$rootScope.backgroundImg="url('http://abounde.com/uploads/images/abt-min.jpg')"; //abt bg
$scope.$on('$viewContentLoaded', function() {
console.log("about page loaded");
});
});
From what I understand, the pb is that when you route to another page then you launch a new request to download your background with your url(...). Because this request can take time then you have your white screen.
So a solution could be to "preload" all background images when you open your app. So before displaying anything on your app you can display a "loading..." div. In background download all your backgrounds.
Once this is done, when changing route then simply change the css class of your wrapper div to the css class containing the correct background image.
On this particular page, you could have a div that wraps the entire document.
Give this div a class with css ie .document-wrapper-invisible
in your css give .display-none class a display property of none
.dislay-none {
display: none;
}
When your view content loaded function runs, remove this class. You can simply set a variable to be true and use ng-class to conditionally remove the class. ie
<div ng-class="{display-none: !documentLoaded}">
// your page content
</div>
in your controller
$rootScope.$on('$viewContentLoaded', function() {
console.log("about page loaded");
$scope.documentLoaded = true;
});
Something along these lines should work (I've only ever used rootScope for the viewContentLoaded event, if $scope works on it's own then great)
Related
I'm using the bootstrap-vue overlay on a page that has long content scrolled via the browser window.
<b-overlay :show="loading">
The overlay correctly covers all of the content, even the part below the viewport, but the overlay's built-in spinner is centered on the content rather than the viewport, so the spinner ends up near or below the bottom of the viewport when the content is long enough.
I've tried custom content via a slot, like this...
<b-overlay :show="loading">
<template v-slot:overlay>
<div style="???" class="text-center">
<p style="???">Make me a spinner and center me on the viewport</p>
<b-button
</div>
</template>
...with dozens of ideas for style="???", including position:absolute with different tops, including top=50vh, including !important strewn around, etc., but the content doesn't budge.
// Note that this snippet doesn't run, because I don't see a way to get
// bootstrap-vue via CDN
var app = new Vue({
el: '#app',
data: function() {
return {
message: 'Hello Vue!',
messages: []
}
},
mounted() {
for (let i=0; i<50; i++)
this.messages.push(i)
},
})
<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.17/vue.js"></script>
<div id="app">
<b-overlay :show="true">
{{ message }}
<!-- long content below extends the overlay size -->
<!-- this moves the spinner down and off the viewport -->
<ul>
<li v-for="m in messages" :key="m">{{m}}</li>
</ul>
</b-overlay>
</div>
I think key to solving this is finding the CSS selector that allows me to change the spinner's position to "fixed" as opposed to "absolute" which seems to be what bootstrap generates.
To get spinner on center of screen you need to make it as direct child of body.
If it is nested it will have restrict area inside immediate parents area.
Try to add that separately or once your DOM ready detach overlay and append to body tag.
I ran into the same issue. Adding this line of CSS on the component resolved it for me:
<style>
.position-absolute {
position: fixed !important;
}
</style>
Note: make sure to not include the scoped keyword in your <style> tag, as this will not work for Bootstrap classes.
Ok, i am new to Angular 4. I am having issues with styling the application properly. I went ahead and added a background image to the body, this worked as expected, then added a component that would display content and it looked as expected.
I added a second component different route but for this one I do not want the body to have the background image at this point i am not sure what is the best practice.
I read a few articles and some say that you can have a different style for the body at the component level by adding a body style override in the styleUrls. I did this but everytime i went from say /myroute/page2 to myroute/page1 the background sticked to what i set for myroute/page2 while it should show the body image for /myroute/page1. I am also using ViewEncapsulation set to None (maybe this is the issue)?.
Also this is my setup and may be wrong too
index.html has something like this:
</head>
<body>
<app-root></app-root>
</body>
</html>
then my app.component.html has this:
<app-navigation></app-navigation>
<router-outlet></router-outlet>
<app-footer></app-footer>
and then i have my welcome.component.html that has a section
<section id="hero">
<div>
</div>
</section>
Now the component above shows the background set correctly, but if I navigate using something like
this.router.navigate(['/page2']);
the background stays the same as in my welcome component. If i refresh on /page2 the right background now shows up.
UPDATE:
Ok i gave up on showing the background on the second component, i wanted without background image, but want to keep the one in the first component. So i removed the ViewEncapsulation from all of them but now if I move the body {} to the first component it does not show it for some reason (I made sure it has the right path). Is there a better fix than removing it by using the DOM?. What is the best practice?.
You need to set style class on ngOnInit and remove it on ngOnDestroy.
constructor(private renderer: Renderer2) {
}
ngOnInit() {
this.renderer.addClass(document.body, 'your_class');
}
ngOnDestroy() {
this.renderer.removeClass(document.body, 'your_class');
}
This worked for me, pls try. In your component1,
ngOnInit() {
document.body.style.background="url(https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcSu5rIAFQkkswZLuwAUCXZqc_8bBROGkGgmZP5bmGk57sRKXWJMEg)";
}
ngOnDestroy() {
document.body.style.background="";
}
In your component2,
ngOnInit() {
document.body.style.background="url(http://gkreading.com/wp-content/uploads/2017/03/awesome-kid-in-the-grass.jpg)";
}
ngOnDestroy() {
document.body.style.background="";
}
Hope this helps.
I am currently using the Flatiron Template in Squarespace 6. Each image in the gallery currently displays the image, a title, and -view- under it. I am looking to change -view- to a different name (a city to be specific) that is unique to each gallery item.
The source code for one of the grid items is this:
<script>
Y.use('squarespace-ui-base', function(Y) {
Y.one(".project-item .meta h1").plug(Y.Squarespace.TextShrink);
});
</script>
<!-- Main Grid -->
<div id="grid" data-collection-id="53ebab59e4b0c8271c405596">
<div class="item">
<a href="/diesel-pop-up-brooklyn-nyc/" data-dynamic-load data-dynamic-receiver="#detail_53ee8134e4b020d5c7faa7b3" >
<div class="wrapper">
<div class="project-title">
<h2>DIESEL POP-UP</h2>
<h3>— view —</h3>
</div>
</div>
<img class="thumbnail loading" data-src="http://static.squarespace.com/static/52937e51e4b006a2894ed2fb/t/540e3941e4b0438c2051340c/1410218366032/2.jpg" data-image="http://static.squarespace.com/static/52937e51e4b006a2894ed2fb/t/540e3941e4b0438c2051340c/1410218366032/2.jpg" data-image-dimensions="480x642" data-image-focal-point="0.5,0.5" alt="2.jpg" data-load="false" />
<noscript><img src="http://static.squarespace.com/static/52937e51e4b006a2894ed2fb/t/540e3941e4b0438c2051340c/1410218366032/2.jpg?format=original"></noscript>
</a>
</div>
I have tried using this in the custom CSS section (just to attempt at targeting one item) but it has only effected the page that the image links to, not the image itself.
.project-item[data-dynamic-href='/diesel-pop-up-brooklyn-nyc/'] {
background-color: red;
}
Is there a code that can target each individual element?
Go to:
Page > Settings > Advanced > Header injection (Index page)
Then paste the following:
<script src="//ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
<script>
$(document).ready(function () {
$(".item:nth-child(1) h3").text("1st item");
$(".item:nth-child(2) h3").text("2nd item");
$(".item:nth-child(3) h3").text("3rd item");
$(".item:nth-child(4) h3").text("4th item");
});
</script>
Cool. Now you can change the text in the quotations (1st, 2nd, 3rd, 4th item) to whatever text you want to replace 'view'. If you have more than 4 galleries in the index, you can copy a line and paste it below, but just make sure to increase the nth-child item from (4) to (5).
Hope that helps!
Thanks for adding the additional data. Unfortunately you cannot do this. Changes in SquareSpace are global changes. You can make a cosmetic change to all galleries but you cannot target a specific gallery by ID. Squarespace object IDs are dynamic and session based. If you target a specific object ID in your CSS, once you refresh the page the ID will change and the CSS will no longer be valid.
However if there is a scenario where you have individual galleries on separate pages then you can work around the global change by inserting the CSS at the "page" level under settings and not a the site level that calls the object category (not the object ID).
Also changing the content of a label is not a css change. That is an HTML change. In Squarespace you cannot modify/hack the actual HTML in the templated versions.
I would like to style my selected button.
I would like to display a light-blue border around the image of my selected button to show which page the user is on. (or just use the same hover image as the selected button image when the button is pushed.)
I didn't have success with the css link selectors :visited, :focus, or :selected.
Does this require a javascript solution?
thanks for any pointers!
i usually just a extra class name called selected
<div class="button selected">Button 1</div>
<div class="button">Button 2</div>
.selected {
border: 1px solid #0000ff;
}
It depends on how you display your page (using ajax or refresh on every click). If you are using javascript to load the page content than you just put an extra classname using javascript when the button is clicked.
you should use :active pseudo class in css to achieve what you want.
jQuery Solution with your CSS
You would probably want to check first if it is selected, that way this solution works with things like Twitter Bootstrap, where you can make any element act like a button:
$(function () {
$('div.button').click(function(){
if ($(this).hasClass('selected') {
$(this).removeClass('selected');
//Insert logic if you want a type of optional click/off click code
}
else
{
$(this).addClass('selected');
//Insert event handling logic
}
})
});
You will, in fact, need to use javascript. I did this in a project a while back, by iterating through the links in the navbar, and setting a class called "selected" on the one the user is currently visiting.
If you use jQuery, you can accomplish it like this:
$(function() {
$('#navbar li').each(function() {
if ($(this).children('a').attr('href') == window.location.pathname)
{
$(this).addClass('active');
}
});
})
The CSS Pseudo-selector :active won't still be active after a pagereload.
I currently have an asp form that uses jquery for two elements: an image upload and a datapicker.
The code that implements the image upload is
$(function() {
$("#wcpImage").makeAsyncUploader({
upload_url: "/Business/ImageUpload",
flash_url: '../../Scripts/swfupload.swf',
button_image_url: '../../Content/images/blankButton.png',
disableDuringUpload: 'INPUT[type="submit"]'
});
});
With an input element <input type="file" id="wcpImage" name="wcpImage" />.
The code that implements the Datepicker using the JQueryUI DatePicker widget is
$().ready(function() {
$('#Business_Work_Cover_Expiry_Date').datepicker({ dateFormat: 'dd/mm/yy' });
});
With an input element generated by <%= Html.TextBoxFor(m => Model.Business.Liability_Expiry_Date) %>
The datepicker pops up when users enter the text box for the expiry date. The issue I'm having is that the buttons for the image upload are appearing over the top of the datepicker.
Can I use CSS z-index to fix this and how?
The use of the CSS z-index is most likely the only way to hand these types of issues.
This might do it:
<style type="text/css">
#ui-datepicker-div {
z-index: 9999999;
}
</style>
Turns out that it was because the buttons were flash objects being drawn with a wmode of Window, which means that z-index will have no effect as the button is rendered over the top of everything. Set the wmode to Transparent in the javascript and now it works.
Found the answer here.