Full Page JS Animate Anchor : False Glitch - fullpage.js

Upon page refresh using animateAnchor: false, for a second I see the first image / slide presented on the site, rather than instantly loading the slide that is anchored. It looks like a small glitch. Is there any way around this problem?

That makes total sense if you are importing the fullpage.js file before the closing body.
That way you'll have to wait for fullPage.js file to load and then to initialise and meanwhile you'll see your site as it is before using fullpage.js.
Try importing fullPage.js on the head of your site, this way initialisation will be faster.
Also, you can use the following CSS in your stylesheet so sections will be 100% height even before loading fullPage.js:
#fullpage,
.section,
body,
.fp-tableCell,
html {
height: 100%
}
Assuming #fullpage is your fullpage wrapper and that you use the default selectors for sections and slides. (.slide, .section)

Related

Image not loading on Squarespace page

I made a simple change on my Squarespace site today, and for some reason my images on one specific page are not loading anymore. I've tried different browsers, and clearing my cache, but the image won't load and nothing has changed. Any idea what I can do to get to the bottom of this?
If you follow this link you will see what I'm talking about, and image will load for less than a second and then disappear. If you don't see it, try refreshing the page.
It appears that you are applying some custom CSS to the page in question, likely via per-page code injection. The following code is appearing on that page:
<style>
.sublogo {
z-index:1000;
position:fixed;
top:20px;
left:35px;
}
.thumb-image.loaded {
display: none !important;
}
</style>
It is the second rule, .thumb-image.loaded {...} that is causing the image to disappear once it is fully loaded.
Removing that rule should solve the issue. Of course, you'd need to consider why the rule was added in the first place and what other issue it was put there to solve.

Improving Performance When Loading Styles (e.g. styles.css)

How to avoid loading times so that the user doesn't see two different styles? This can be observe during the first two seconds of loading.
Please refer to the following screenshot,
Compare the Search Menus
In your case I would set the menu CSS to #menu select {visibility:hidden;} initially, and then change back to visibility:visible; on page load -- using Javascript or jQuery, or at the end of the CSS style sheet.
// Change menu select styles on load with jQuery
$(function() {
$('#menu select').css('visiblity', visible');
});
or
<script>
// Plain javascript hiding an entire menu div group
document.getElementById('menu-container').style.visibility = "visible";
</script>
Put CSS at the bottom will make your webpage "white" for until all the style sheet is loaded.
This causes the blank white screen problem. The page is totally blank
until the stylesheet at the bottom is downloaded, on the order of 6-10
seconds for this page. The browser is waiting for the stylesheet to be
loaded before it renders anything else in the page, even the static
text.
Compare with Put CSS at the top
(from High Performance Websites - Steve Souders)

Possible to animate between separate pages with HTML5 or AJAX?

I have a site with about 10 pages. On each page its the same layout and just the image changes. Is it possible (EG with HTML or AJAX) to animate the image change when you navigate to a new page?
I want the appearance to be as close to a normal jQuery slider as possible:
http://jquery.malsup.com/cycle2/demo/prevnext.php
I haven't used the Cycle 2 plugin as I need each page to have a separate URL. The Cycle 2 plug in does have bookmark-able slides but they use fragment identifiers for each 'page' which social media sharing widgets sometimes ignore. So mysite.com/#page3 is shared as mysite.com, meaning the first not third slide is linked to.
The social media sharing widgets also use meta data from the page which doesn't change per slide as its still the same page.
You can use CSS3 page transitions, remain on one page and just manipulate the URL as you need to. See for example: Change the URL in the browser without loading the new page using JavaScript
Here's a good answer to your question using HTML5 Transitions:
HTML 5 page transitions
Hope this helps!

Should I load an entire html page with AJAX?

My designer thought it was a good idea to create a transition between different pages. Essentially only the content part will reload (header and footer stay intact), and only the content div should have a transitional effect (fade or some sort). To create this sort of effect isn't really the problem, to make google (analytics) happy is...
Solutions I didn't like and why;
Load only the content div with ajax: google won't see any content, meaning the site will never be found, or only the parts which are retrieved by ajax, which arent't full pages at all
show the transitional effect, then after that 'redirect' the user to the designated page (capture the click event of a elements): effect is pretty much the same as just linking to another page, eg. user will still see a page being reloaded
I thought of one possible solution:
When a visitor clicks a link, capture the event, load the target with ajax, show the transitional effect in the meantime, then just rewrite the entire document with the content fetched with the ajax request.
At least this will work and has some advantages; the page reload will look seamless, no matter how slow your internet connection is, google won't really mind because the ajax content is a full html page itself, and can be crawled as is, even non-javascript browsers (mobile phones et al.) won't mind, they just reload the page.
My hesitation to implement this method is that i would reload an entire page using ajax. I'm wondering if this is what ajax is meant to do, if it would slow things down. Most of all, is there a better solution, eg. my first 'bad' solution but slightly different so google would like it (analytics too)?
Thanks for your thoughts on this!
Short answer: I would not recommend loading an entire page in this manner.
Long answer: Not recommended. whilst possible, this is not really the intent of XHR/Ajax. Essentially what you're doing is replicating the native behaviour of the browser. Some of the problems you'll encounter:
Support for the Back/Forward
button. You'll need a URI # scheme
to solve.
The Browser must parse
the entire page through AJAX.
This'll slow things down. E.g. if
you load a block of HTML into the
browser, then replace the DOM with
it, only then will any scripts, CSS
or images contained therein begin
downloading.
Memory - the
browser's not changing pages. Over
time (depending on the browser), I'd
expect the memory usage to increase.
Accessibility. Screen readers
will need to be notified whenever
the page content is updated. Might
not be a concern for you but worth
mentioning.
Caching. Browser
would not know which page to cache
(beyond the initial load).
Separation of concerns - your View
is essentially broken into
server-side pieces to render the
page's content along with the static
HTML for the page framework and
lastly the JS to combined the server
piece with the browser piece.
This'll make maintenance over time
problematic and complex.
Integration with other components -
you're already seeing problems with
Google Analytics. You may encounter
issues with other components related
to the timing of when the DOM is
constructed.
Whether it's worth it for the page transition effect is your call but I hope I've answered your question.
you can have AJAX and SEO: Google's proposal .
i think you can learn something from Gmail's design.
This may be a bit strange, but I have an idea for this.
Prepare your pages to load with an 'ifarme' GET parameter.
When there is 'iframe' load it with some javascript to trigger the parent show_iframe_content()
When there is no 'iframe' just load the page, with a hidden iframe element called 'preloader'
Your goal is to make sure every of your links are opened in the 'preloader' with an additional 'iframe' get parameter, and when the loading of the iframe finishes, and it calls the show_iframe_content() you copy the content to your parent page.
Like this: Link clicked -> transition to loading phase -> iframe loaded -> show_iframe_content() called -> iframe content copied back to parent -> transition back to normal phase
The whole thing is good since, if a crawler visit ary of your pages, it will do it without the 'iframe' get parameter, so it can go through all your pages like normal, but when you use it in a browser, you make your links do the magic above.
This is just a sketch of it, but I'm sure it can be made right.
EDIT: Actually you can do it with simple ajax, without iframe, the thing is you have to modify the page after it has been loaded in the browser, to load the linked content with ajax. Also crawlers should see the links.
Example script:
$.fn.initLinks = function() {
$("a",this).click(function() {
var url = $(this).attr("href");
// transition to loading phase ...
// Ajax post parameter tells the site lo load only the content without header/footer
$.post(href,"ajax=1",function(data) {
$("#content").html(data).initLinks();
// transition to normal phase ...
});
return false;
});
};
$(function() {
$("body").initLinks();
});
Google analytics can track javascript events as if they are pageviews- check here for implementation:
http://www.google.com/support/googleanalytics/bin/answer.py?hl=en-GB&answer=55521

Need Jquery Carousel [slider animation] with HTML and AJAX

i need a jquery plugin where i want to load the module by default as HTML and upon clicking more link it should load the rest of the content via AJAX and then previous button should be enabled.
Currently when i google i can get lot of plugin which just load either via AJAX or Animation [by hidding the rest of the content]. But for performance issue i don't want to load all the content at one shot and then animation. So i want to load the 5 li's and upon clickiing "More" it should start loading the remaining content but it should also animation.
Could someone help me on this?
-- Bala
My advice to you would be to customize the jCarousel according to your needs. Specifically, when you render the page initially you can include the initial 5 elements of your carousel. Then, in the carousel's onchange event, once you reach the last slide you can use AJAX to pull in the additional images.
Depending on your needs, using jCarousel driven by a flat JavaScript array you could save some load time as the image URLs would be rendered in the original markup, but not downloaded by the browser until they are added to the visible portion of the carousel. No AJAX required. Here's a demo.

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