I have a Joomla site which uses mod_rewrite to create pretty urls.
http://www.example.com/resources/newsletter
However this created a problem. Including images like this: src="images/pic.jpg", it would then look for a file at:
http://www.example.com/resources/newsletter/images/pic.jpg
...which obviously doesn't exist. To work around this, I included a <base> tag in my head section:
<base href="http://www.example.com/" />
...which worked fine, until I tried to do a link to an anchor point (bookmark) on the same page:
<!-- on http://www.example.com/resources/newsletter -->
go to the footer
<!-- clicking that link takes you to http://www.example.com/#footer -->
Changing my links to be <a href="resources/newsletter/#footer"> is not feasible, since I won't necessarily know the URL of the page when editing it. Is there any way to make some links ignore the <base> directive?
Though I'd really prefer a straight HTML solution, I'm using jQuery on this site already, so that could be an option if I'm stuck.
Is it possible to change your src attribute to be something like /images/pic.jpg? That'll achieve the effect you're looking for.
If that's not possible, this (untested) jQuery code should work for you:
$('a[#href^="#"]').click(function() {
var hash = this.hash, el = $(hash), offset;
if(!el.size()) {
el = $("[#name=" + hash.slice(1) + "]");
}
offset = el.offset();
window.scroll(offset.left, offset.top);
});
Old question, new answer..
Try this:
$('a[href^="#"]').on('click', function (event) {
event.preventDefault();
window.location.hash = $(this).attr('href');
});
Related
Is it possible to change styles of a div that resides inside an iframe on the page using CSS only?
You need JavaScript. It is the same as doing it in the parent page, except you must prefix your JavaScript command with the name of the iframe.
Remember, the same origin policy applies, so you can only do this to an iframe element which is coming from your own server.
I use the Prototype framework to make it easier:
frame1.$('mydiv').style.border = '1px solid #000000'
or
frame1.$('mydiv').addClassName('withborder')
In short no.
You can not apply CSS to HTML that is loaded in an iframe, unless you have control over the page loaded in the iframe due to cross-domain resource restrictions.
Yes. Take a look at this other thread for details:
How to apply CSS to iframe?
const cssLink = document.createElement("link");
cssLink.href = "style.css";
cssLink.rel = "stylesheet";
cssLink.type = "text/css";
frames['frame1'].contentWindow.document.body.appendChild(cssLink);
// ^frame1 is the #id of the iframe: <iframe id="frame1">
You can retrieve the contents of an iframe first and then use jQuery selectors against them as usual.
$("#iframe-id").contents().find("img").attr("style","width:100%;height:100%")
$("#iframe-id").contents().find("img").addClass("fancy-zoom")
$("#iframe-id").contents().find("img").onclick(function(){ zoomit($(this)); });
Good Luck!
The quick answer is: No, sorry.
It's not possible using just CSS. You basically need to have control over the iframe content in order to style it. There are methods using javascript or your web language of choice (which I've read a little about, but am not to familiar with myself) to insert some needed styles dynamically, but you would need direct control over the iframe content, which it sounds like you do not have.
Use Jquery and wait till the source is loaded,
This is how I have achieved(Used angular interval, you can use javascript setInterval method):
var addCssToIframe = function() {
if ($('#myIframe').contents().find("head") != undefined) {
$('#myIframe')
.contents()
.find("head")
.append(
'<link rel="stylesheet" href="app/css/iframe.css" type="text/css" />');
$interval.cancel(addCssInterval);
}
};
var addCssInterval = $interval(addCssToIframe, 500, 0, false);
Combining the different solutions, this is what worked for me.
$(document).ready(function () {
$('iframe').on('load', function() {
$("iframe").contents().find("#back-link").css("display", "none");
});
});
Apparently it can be done via jQuery:
$('iframe').load( function() {
$('iframe').contents().find("head")
.append($("<style type='text/css'> .my-class{display:none;} </style>"));
});
https://stackoverflow.com/a/13959836/1625795
probably not the way you are thinking. the iframe would have to <link> in the css file too. AND you can't do it even with javascript if it's on a different domain.
Not possible from client side . A javascript error will be raised "Error: Permission denied to access property "document"" since the Iframe is not part of your domaine.
The only solution is to fetch the page from the server side code and change the needed CSS.
A sort of hack-ish way of doing things is like Eugene said. I ended up following his code and linking to my custom Css for the page. The problem for me was that, With a twitter timeline you have to do some sidestepping of twitter to override their code a smidgen. Now we have a rolling timeline with our css to it, I.E. Larger font, proper line height and making the scrollbar hidden for heights larger than their limits.
var c = document.createElement('link');
setTimeout(frames[0].document.body.appendChild(c),500); // Mileage varies by connection. Bump 500 a bit higher if necessary
Just add this and all works well:
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0">
If the iframe comes from another server, you will have CORS ERRORS like:
Uncaught DOMException: Blocked a frame with origin "https://your-site.com" from accessing a cross-origin frame.
Only in the case you have control of both pages, you can use https://developer.mozilla.org/en-US/docs/Web/API/Window/postMessage to safely send messages like this:
On you main site(one that loads the iframe):
const iframe = document.querySelector('#frame-id');
iframe.contentWindow.postMessage(/*any variable or object here*/, 'https://iframe-site.example.com');
on the iframe site:
// Called sometime after postMessage is called
window.addEventListener("message", (event) => {
// Do we trust the sender of this message?
if (event.origin !== "http://your-main-site.com")
return;
...
...
});
Yes, it's possible although cumbersome. You would need to print/echo the HTML of the page into the body of your page then apply a CSS rule change function. Using the same examples given above, you would essentially be using a parsing method of finding the divs in the page, and then applying the CSS to it and then reprinting/echoing it out to the end user. I don't need this so I don't want to code that function into every item in the CSS of another webpage just to aphtply.
References:
Printing content of IFRAME
Accessing and printing HTML source code using PHP or JavaScript
http://www.w3schools.com/js/js_htmldom_html.asp
http://www.w3schools.com/js/js_htmldom_css.asp
We'd like to show a "Loading..." image when the page is still being transferred. Pages can get quite large in our application. I tried with a separate page that displays the image and then loads the intended page, but the animated GIF just stops.
Can something be done on the page itself?
Or is there a better way?
Thanks for your comments, as always!
UPDATE
Here's the general idea of my small switching page:
<?xml version="1.0" encoding="UTF-8"?>
<xp:view xmlns:xp="http://www.ibm.com/xsp/core" xmlns:xc="http://www.ibm.com/xsp/custom">
<xp:div
style="width:84.0px;height:84.0px;position:fixed;top:50%;left:50%;margin-top:0px;margin-left:0px;height:0px;width:0px;z-index:1000"
id="AjaxLoader">
<xp:image url="/loading.gif" id="image1">
</xp:image>
</xp:div>
<xp:scriptBlock id="scriptBlock1">
<xp:this.value><![CDATA[XSP.addOnLoad(function() {
var href= getParameterByName("href");
location.href= href;
});]]></xp:this.value>
</xp:scriptBlock>
</xp:view>
Loading a "loading" page prior than the one you want to load is not an option.
You can create to DIVs in your HTML: one for the loading icon (e.g. with id="loadingIcon"), second one for the content (id="contentWrapper"). The second one is hidden (CSS style="display:none").
Define a Javascript function like this:
function pageLoaded(){
document.getElementById("loadingIcon").style.display = "none";
document.getElementById("contentWrapper").style.display = "";
}
The script is called in the BODY's onLoad event like this:
<body onload="pageLoaded()">
...
</body>
It is not a question of the web-server environment, but how you organize your code :-)
Take your approach and modify it slightly. Instead of location.href = href - which just triggers a reload, use an ajax call and replace your loading div. Something like this:
<xp:scriptBlock id="scriptBlock1">
<xp:this.value><![CDATA[XSP.addOnLoad(function() {
var href= getParameterByName("href");
$.ajax({
url: "test.html",
context: $("#{id:AjaxLoader}");
}).done(function(result) {
$( this ).replace(result);
});
location.href= href;
});]]></xp:this.value>
</xp:scriptBlock>
(contains typos, adjust as needed)
To answer my own question: No, it's not possible, but there is a nice way around this, in my case anyway.
The trick is to open a new browser window, write something in it and then allow the new page to load.
var w= window.open();
w.document.write("<div style='position: fixed; top: 48%; left:40%'>Loading...</div>");
w.location.href= url;
If necessary the text can be replaced by an image and the new url can be set after a timeout.
I am working on a personal site, and the site uses an <iframe> to display most of its contents. You navigate the site by changing the target of the <iframe> to a specific .html.
Here's an example of how the navigation works:
<ul>
<li><a>onclick="document.getElementById('iframe1').src='home.html'>Home</a></li>
<li><a>onclick="document.getElementById('iframe1').src='prjcts.html'>Projects</a></li>
</ul>
<iframe src="home.html" id="iframe1"></iframe>
The problem that I've encountered is that since most things are is inside of the <iframe> that I can't link directly to any specific content.
If I wanted to show someone the Projects page, I can only link "www.example.com/" and tell them to navigate there themselves, and not simply link "www.example.com/projects".
My theory is that you can do it with something like:
"www.example.com#projects" using ID's or something, but since I'm pretty new to HTML5, I might be completely wrong. I have no idea how to make it work, and I can't seem to find anyone explaining it.
Is there any way to use the URL to specify an <iframe> target, and if so, how?
You would want to check the url and then set the src of your iframe using the url:
This is just an example of how you could do it, you should use maybe an array of URLs. There are a bunch of ways to accomplish this.
HTML:
<div id="wrapper">
<iframe id="myIframe" src="http://example.com/"></iframe>
</div>
JavaScript (using jQuery here):
$(document).ready(function () {
var myPath = window.location.pathname; // returns something like /projects.html
if (myPath == "/projects.html") {
$('#myIframe').src = "http://www.example.com/projects.html"; // sets the src of your iframe
}
});
Refer to this post's answer: dynamically set iframe src
i know that you can have style-sheets in the head of a page, but i like to have them in a separate file. Now i'm working with a single page application.
Well in an SPA the content is dynamic, right? so i didn't want to import all the style-sheets in the head section with the link tag. Can i somehow import style-sheets as-and-when i need them?
I mean, can i have a link in the body, such that whenever my SPA loads some dynamic content, a style sheet also gets loaded? Such that i dont have to load all the stylesheets even when the dynamic content is not loaded..
I stress again: Whenever the content loads, the styles load.
I know i can do it with the help of an inline style like this:
~PSEUDO CODE
<tagname style="somestyle"></tagname>
but can i have some dynamic file imports too? Can i have the link tag in the body too? Even if it works, is it standard?
You should look into asychronously loading assets, such as the famous google-analytics code. You can load external stylesheets using Javascript.
JavaScript
(function(){
var styles = document.createElement('link');
styles.rel = 'stylesheet';
styles.type = 'text/css';
styles.media = 'screen';
styles.href = 'path/to/css/file';
document.getElementsByTagName('head')[0].appendChild(styles);
})();
Lines 1 and 7 create a new scope for variables such that local variables do not collide or override with globally scoped variables. It isn't necessary just a best practice. This solution also assumes you have a <head> tag in your html.
You can add/remove/edit link tags in your head area with java script to add/remove stylesheet files.
Code example:
Add a stylesheet to the head:
var newstyle = document.createElement("link"); // Create a new link Tag
// Set some attributes:
newstyle.setAttribute("rel", "stylesheet");
newstyle.setAttribute("type", "text/css");
newstyle.setAttribute("href", "filename.css"); // Your .css File
document.getElementsByTagName("head")[0].appendChild(newstyle);
To remove or edit a stylesheet you can give every stylesheet an id attribute and access it with this:
document.getElementById('styleid')
Or you can loop through all link tags in the head area and find the correct one but I suggest the solution with the ID ;)
Now you can change the href attribute:
document.getElementById('styleid').setAttribute("href", "newfilename.css");
Or you can remove the complete tag:
var styletorem = document.getElementById('styleid');
styletorem.parentNode.removeChild(styletorem)
I just tried to give dynamic styling to my webpage. I used a button. On click of it, the CSS will get imported using a method in Javascript.
In my html, I have:
<button type="button" onclick="changeStyle()"> CLICK TO SEE THE MAGIC!! </button>
Then in Javascript, I have a method named changeStyle():
function changeStyle()
{
var styles = document.createElement('link');
styles.type="text/css";
styles.rel="stylesheet";
styles.href="./css/style.css";
document.head.appendChild(styles);
}
It worked perfectly.
Is it possible to make a link such that it brings up the REL of a topic,
for example if a link is
Click here
Is it possible to have a user link so when they go to the page it automatically opens the lightbox?
For example http://example.com/?rel=lightbox&src=picture.jpg
or something like that?
Yes, but no browsers include a lightbox, so you'd need to write or find code to make one of those as well.
Yes, it is possible. You may better use URLs like http://domain.com/#lightbox, and write a little script:
//jQuery sample
$(document).ready(function() {
if (location.hash == "#lightbox") {
//Just show your lightbox manually
}
});
you can do that with a bit of jQuery
$(a[rel=lightbox]).click(function(e) {
// open the lightbox with the link url inside
return false
});