I know that trying to scroll the iframe itself in not the way to go and instead i should be scrolling the div. Thing is it doesn't work. What is wrong with this code? Is it a google thing? I'm using the custom search so it shows up in the frame but I know google and frames don't like to play with each other.
HTML
<div id="googleframe"><iframe id="googleseo" src="http://www.google.com/custom?q=hey+there&btnG=Search"></iframe></div>
JS
var seoFrame = document.getElementById('googleseo');
seoFrame.src = googleSearch;
seoFrame.onload = function () {
document.getElementById('googleframe').scrollTop = 300;
}
}
It was a CSS issue. The iframe wasn't long enough to scroll. It was the same height as my div so I made it longer and it works perfectly.
This is due to the scrollTop referencing the iframe, not the body within the frame. The iframe itself doesn't have a scrollbar, it's the document within it.
Fiddle of it working http://jsfiddle.net/ebzxzgmo/
var seoFrame = document.getElementById('googleseo');
var elem = (seoFrame.contentDocument||seoFrame.contentWindow.document).documentElement;
elem.getElementsByTagName('body')[0].scrollTop = 300;
Notice that it's requesting jsfiddle. Browsers block accessing the DOM of iframes from other domains.
Reference for scrolling cross domain: Scroll a cross-domain child iframe?
Related
I've been making a Javascript bookmarklet that embeds an iFrame and I cannot align the iFrame correctly
I have tried each of the alignment types and different ways of positioning, with no luck
var AppendedFrame = document.createElement("iFrame");
AppendedFrame.src="https://www.google.com";
AppendedFrame.setAttribute("position", "absolute");
AppendedFrame.setAttribute("width", "400");
AppendedFrame.setAttribute("height", "225");
AppendedFrame.setAttribute("top", "2px");
AppendedFrame.setAttribute("right", "3px");
AppendedFrame.setAttribute("z-index", "2147483648");
document.body.appendChild(AppendedFrame);
The output I expected was to have an iFrame appear in the top right and stay, however the iFrame just stays in it's default spot.
Edit: Google is just an example by the way, I will be using a different website when it's done.
var AppendedFrame = document.createElement("iFrame");
AppendedFrame.src="https://www.baid.com";
AppendedFrame.setAttribute("style",'"position":"absolute";"width":"400";"height":"225";"top":"2px";"right":"3px";"z-index"："2147483648"');
document.body.appendChild(AppendedFrame);
...without limiting the scroll inside the iframe or the need to specifically name/tag all scrollable elements.
Imagine google maps widget embedded in parent page. When you zoom in the widget you don't want the parent page to scroll, obviously.
I thought an answer to my previous question solved the problem:
While scrolling inside an iframe, the body doesn't know anything about
what happens there. But when iframe scroller reach the bottom or the
top, it pass scrolling to body.
Cancel the event that propagates from the iframe.
But the solution does not work in Firefox because Firefox will not - by design - propagate events captured by iframe to the parent page, yet strangely it will scroll the parent page. See jsfiddle here.
$('body').bind('mousewheel DOMMouseScroll', onWheel);
function onWheel (e){
if (e.target === iframe)
e.preventDefault();
console.log(e);
}
So, how do I prevent page from scrolling when user zooms content in embedded iframe, in Firefox?
Since it is a bug in Firefox, the workaround is to work directly with the scroll event, instead of the mousewheel / DOMMouseScroll ones.
The way I did: When user enters the mouse over the iframe, I set a flag to true, and when he leaves the mouse out there, I set it back to false.
Then, when user tries to scroll, but the mouse arrow is inside the iframe, I prevent the parent window scrolling. But, unfortunately, you can't prevent the window scrolling with the usual e.preventDefault() method, so we still need another workaround here, forcing the window to scroll exactly to the X and Y positions it was already before.
The full code:
(function(w) {
var s = { insideIframe: false }
$(iframe).mouseenter(function() {
s.insideIframe = true;
s.scrollX = w.scrollX;
s.scrollY = w.scrollY;
}).mouseleave(function() {
s.insideIframe = false;
});
$(document).scroll(function() {
if (s.insideIframe)
w.scrollTo(s.scrollX, s.scrollY);
});
})(window);
I've created an immediately executed function to prevent defining the s variable in the global scope.
Fiddle working: http://jsfiddle.net/qznujqjs/16/
Edit
Since your question was not tagged with jQuery (although inside it, you've showed a code using the library), the solution with vanilla JS is as simple as the above one:
(function(w) {
var s = { insideIframe: false }
iframe.addEventListener('mouseenter', function() {
s.insideIframe = true;
s.scrollX = w.scrollX;
s.scrollY = w.scrollY;
});
iframe.addEventListener('mouseleave', function() {
s.insideIframe = false;
});
document.addEventListener('scroll', function() {
if (s.insideIframe)
w.scrollTo(s.scrollX, s.scrollY);
});
})(window);
Given all the prerequisites, I think the following is the sanest way to make this work in Firefox.
Wrap your iframe with a div which is a little bit shorter to enable vertical scrolling in it:
<div id="wrapper" style="height:190px; width:200px; overflow-y: auto; overflow-x: hidden;">
<iframe id="iframeid" height="200px" width="200px" src="about:blank">
</iframe>
</div>
Now you can center the iframe vertically and re-position it every time
the wrapper receives a scroll event (it will occur when a user tries to scroll away at frame edges):
var topOffset = 3;
wrapper.scrollTop(topOffset);
wrapper.on("scroll", function(e) {
wrapper.scrollTop(topOffset);
});
Combine this with your previous fix for Chrome, and it should cover all major browsers. Here is a working example - http://jsfiddle.net/o2tk05ab/5/
The only outstanding issue will be the visible vertical scrollbar on a wrapper div. There are several ways to go about it, for instance - Hide scroll bar, but still being able to scroll
I think that will solve your problem
it solved mine
var myElem=function(event){
return $(event.toElement).closest('.slimScrollDiv')
}
$(document).mouseover(function(e){
window.isOnSub=myElem(e).length>0
})
$(document).on('mousewheel',function(e){
if(window.isOnSub){
console.log(e.originalEvent.wheelDelta);
if( myElem(e).prop('scrollHeight')-myElem(e).scrollTop()<=myElem(e).height()&&(e.originalEvent.wheelDelta<0)){
e.preventDefault()
}
}
})
replace '.slimScrollDiv' with the element selector you want to
prevent parent scroll while your mouse is on it
http://jsbin.com/cutube/1/edit?html,js,output
I have the following code on my site that's supposed to show a popup window
<span class="fbridge-signup-form" data-widget-id="21378"></span>
<script type="text/javascript">
(function() {
var secure = ("https:" == document.location.protocol);
var fb_js_host = (secure ? "https://www.fanbridge.com" : "http://widget-platform.fanbridge.com");
window._FBRIDGE_WIDGETS_HOST = fb_js_host; var p, s, id = 'fbridge-widgetjssdk-v1';
p = document.createElement('script'); p.id = id; p.type = 'text/javascript'; p.async = true;
p.src = (secure ? "https://ssl.fbridgecdn.net" : "http://static.fbridgecdn.net") + '/js/fb/widget/v1/platform.js?_=' + ((new Date()).getTime());
s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(p, s);
})();
</script>
It works fine, but the problem is that there's some setting with lightboxes on my Drupal site that makes this window of a smaller width and height than the actual content inside.
I tried getting the element with getElementByClassName or writing the width and heightparameters into the style property of fbridge-signup-form but it didn't work out.
Do you know what I could do to force it to be a certain width and height? Say 480px by 400px?
You can check the actual page on http://waytorussia.net/Moscow/Intro.html (it has a cookie set to show only once).
UPDATE: maybe it's possible to use another kind of popup so this one is not overridden by my other settings?
According to the HTML source, the element you should resize is (id) cboxContent.
But the black frame around it doesn't seem "ready" (from an HTML/Css point of view) to be resized.
See the screenshot here:
I resized it 400x400.
EDIT -
By resizing all the appropriate elements, you can manage to get what you want. Here's an example done manually:
Just inspect the element (right-click > Inspect) with a modern browser, and look at the divs that you need to resize on load (with JavaScript).
i opened your page in Firefox with the developer tools to see how things work width and height wise and the results are interesting.
Basically the frame of the lightbox is made up of numerous divs all seem to be hard coded to a specific width and height. When you hover over the inner content using the inspector tool you can see that the inner content is actually the correct width and height but the container ( your collection of divs is not )
Try expanding the height and width of the container divs using css maybe??
I wouldnt have used this as answer but unfortunately i cant provide screenshots using just the comments section to my knowledge.
To see the image at full screen open it in a new tab.
For a good alternative try colorbox its a great JQuery modal plugin that can be used for just about anything.
Demos are here. Have a look at inline HTML example it seems to be similar to what you need.
Thanks to #Vincent G and #KyleT for their help I found that I had to edit the CSS styles for colorbox module.
#cboxLoadedContent iframe{display:block; min-width: 480px; min-height: 400px; border:0;}
and
#colorbox{min-width: 480px !important; min-height: 400px !important; }
in the colorbox.css file which was part of my Drupal installation.
After that the widget was loading fine.
What is wrong this way?:
HTML:
<iframe onload="scrollme(this)" src="somesite.com"></iframe>
Javascript:
function scrollme(ob) {
o.scrollTop = 100;
}
An iframe doesn't scroll. The viewport is always the size of the iframe, so there is no overflow that can scroll.
If you want the page inside the iframe to scroll, you have to make the document scroll. However that is only possible if the page shown in the iframe is from the same domain.
I have a page that loads another page(url) onto it. The problem is that the iframe page does not fit well in the outer page. How can I reduce the size of the iframe page having the content of the iframe page intact? I do not wish to have scroll bars.
Unfortunately you can't really scale an iframe so that its contents change their size. To the browser, the iframe is a window onto another rendering context which has its own layout according to its own CSS. You are at the mercy of how the content inside the iframe is laid out.
If the iframe URL is from a different site and you can't modify it, then you can't really do anything.
If you can modify the page that's displayed within the iframe, well I'd assume you wouldn't be asking.
See the answer here ( How can I scale the content of an iframe? ). I'm using it and it works on FF, Chrome a little flakey.
You could try expanding the width/height of the iframe and checking the clientWidth vs iframe width. If they're equal, there's no scrollbar, otherwise there is.
Use a midpoint approach for efficiency. In sudo-code:
dx = iframe.width;
while (dx > 1) {
previous = iframe.width
if( iframe.width - iframe.clientWidth > 0 ) {
iframe.width += dx*2;
} else {
iframe.width -= dx/2;
}
dx = Math.abs(previous-iframe.width)
}