I am using sIFR on a page which I am loading into an iframe, and using a javascript in the parent window which constantly polls the iframe to see when it changes height (ie. when you click a link in the iframe page and it has a different height than the previous page). Anyways, the problem is that sIFR doesn't seem to show the rendered text until the entire page/script has executed so when the page is first loaded and the javascript is waiting for the iframe to change height, there is no text. As soon as the iframe changes height however (ie. I click a link within the iframe), the javascript finishes and the sIFR rendered text shows up. Is there a way to allow sIFR to render before the page/scripts have finished running?
Put you sifr js and css first of all in <head> before other css and js files
As Jitendra mentioned, loading the files first will help a bit. You can also look into Detecting CSS load.
Related
I can't figure out this issue and I have tried looking this up and it is hard to find any one with this scenario. I am using a master page with two content pages. The first content page is default.aspx, of course. The master page has a png that is a banner. This has a rule that makes it responsive in a separate CSS file. This works fine.
For the first content page, I have three buttons that are styled using CSS ( they are custom buttons I made in a vector graphics program that change appearance when they are pressed, all using CSS ) and they are responsive. There is also a listbox that is styled and responsive with CSS.
The layout of the default page is like this: Two div containers: one that floats left and one that floats right. CSS is used to make these containers responsive. In the right div, I have my buttons and they are enclosed in their own divs. So .. and so on. Of course, the listbox is handled the same way with a div that encloses that as well.
Moving on to the second page, I have the same basic structure as the default page. My intention is to have in the right div an image, followed by a text box, then an image, and a text box. The left div will contain the same content that the default page has.
At this point, I have added to the second content page the list box and the CSS is working as expected. The list box looks just like it did on the default page and is responsive as well. So the CSS is working. For the first image, I need a new CSS rule. So I go to my CSS rule and add a new rule .image{ width: 100%; height: auto; } and then I add my image and set it up with the class reference and the image. It does not work. This image is in it's own div. If I change the class of the image to another class that was created previously, the image is responsive. So I can use the banner CSS rule and the image is responsive, I can use the button CSS rules and the image is responsive, it behaves like a button ( clicking on it makes it change its appearance, that kind of thing ), I can even add the rules for the list box and the image is responsive. If I then go back and try to use the rule for image, it doesn't work anymore.
Any ideas on what is going on. It is not making any sense what so ever. I added the rule to the CSS file just like I did with all the other rules but for some reason, this rule is not working at all.
Thank you guys for any help. I can post code if you guys need it, but I don't see how that would help. My image for the second content page is identical to how I did the banner and the rules for the banner and the image are virtually identical, except percentages are different. This is just super weird.
To improve the performance, browsers save the css files in their cache and use their cache. If they don't do that, the browser has to keep loading the css file every time a page is using the css file.
If you clear your browser cache, you will notice that the new style gets applied.
If you are developing commercial software, you probably don't want to tell every user to clear their browser cache and you prefer to force the browser to load the new css file. On the other hand, once the css is loaded you would like the browser to cache it, because it will improve the performance.
There is a trick to achieve that!
Let's say your style file is called mystyle.css and you have a link to the style file in your web site like this:
<link rel="stylesheet" type="text/css" href="~/mystyle.css">
To force the browser to load the file again, you need to change link and the standard practice is to use a parameter in the url (usually a version number).
like this:
<link rel="stylesheet" type="text/css" href="~/mystyle.css?version=1.00">
Your style file is going to ignore that version parameter but the browser will notice a change in the link and will load the new style file. Basically, the browser stores the link to the file and if you change the version number, since the link does not match with what your browser has in its cache, it will force the browser to load the file again.
I created a content script Chrome extension toolbar by following #RobW's answer to this question.
I'm now trying to get certain elements to overlay on the rest of the page, but currently they are only showing within the iframe.
For instance, an icon is clicked and shows a notification panel/tooltip. As you can see, it is cut off by the edge of the iframe:
Is there a way to change the CSS of the panel to hover on top of the rest of the page despite being in a separate iframe?
BTW, I made the height of the toolbar 143px, instead of the 43px you might expect of a toolbar, just so the issue would be more apparent.
No, I'm fairly sure you can't do that with an iframe-based approach. That beats the purpose of iframe content isolation - imagine the clickjacking possibilites!
You will need to inject your UI into the document itself.
You probably went with an iframe-based approach because of possible clashes with the page's own CSS, for example. Thankfully, there's a modern tool to help with this - Shadow DOM.
Here is the scenario: I have a div which I pre-load into a page and automatically set it's display property to hidden. I use javascript to pop-up said div. The issue is when clients have CSS disabled they can see the DIV, obviously. What is the best way to have the div (or contents of the div) display only when my javascript function is called?
The best way I could think of is passing the raw HTML to a javascript var and then loading all the HTML using javascript, however, this is a bit slow(theres a decent amount of HTML) which causes the script to break when it tries to reference DIVs that do not exist yet.
any other more elegant solutions?
Thanks
You can wrap html comment tags around it:
<!-- <div>your stuff, which should be invisible</div> -->
Or remove it completely from the DOM
http://plugins.jquery.com/plugin-tags/html-comments
Maybe, here some related stuff
If CSS is disabled, then the only way to hide the div is to remove it from the DOM.
You can set an inline style on the div (not recommended but your case is an exception anyway).
You can use JS/jQuery on page load to hide the div but it'll cause the flicker effect (div wiil be visible momentarily until the JS runs to hide it).
You want to have a div on your page when the page loads so that users without javascript can see it, perhaps to indicate them that some of the site functionalities require JS to work.
If you need to use that div exclusively with JS then having it already on the page is a bad approach imho. You should create it on the fly, at least the content.
This way you will ensure users without CSS won't see it, while still being able to show it for the rest of the people with JS enabled.
Set the height of the div you wanna hide to zero using javascript.
$('#mydiv').css("height", "0px");
After analyzing my site with the websiteoptimization.com tool, I see that it lists every single css background image, even if they're not applied to any element on the specific page. Is this a bug on their end, or will some browsers load every css image, even if the element they're applied to isn't on the page?
No, browsers do not automatically load all images. However if you want that you could "link" them from your HTML.
You can check this issue with a tool like Fiddler (http://www.fiddler2.com/fiddler2/). It will show you all the http requests browser makes.
I am working on a web application that has a menu across the top of every page with sub menus that drop down when a menu item is hovered over. This works fine, except on one page where we are trying to show a pdf in an iframe. The hover menus all end up behind the iframe in this one case. I have tried adjusting the z-index of both the hover menu and the iframe but neither seems to work. This is occurring in both FireFox 3.5 and IE8 so far.
There are two ways my question could be solved. I can either find a way to accurately adjust the CSS so my menu appears in front of the iframe or if there is another way to show the pdf that doesn't have this issue I could do that too.
Thanks!
When I ran into this issue, I used jQuery to detach the iframe before showing the overlay (and in my case a modal too). Once the user was done with the modal/overlay, I reattached the iframe to the DOM. _viewerFrame and _viewerDiv are just some css selectors of course. In my case there was a wrapping div tag around the iframe element that made detaching and attaching easy.
// detach iframe
_frame = $(_viewerFrame).detach();
function reattach(frame) {
// append it back to the div it was in (reattaching essentially)
$(_viewerDiv).append(frame);
setButtonStates();
setViewerState();
}
function onOk() {
... // other code
reattach(_frame);
}
function onCancel() {
... // other code
reattach(_frame);
}
// show modal with overlay
Dialog.confirm(onOk, onCancel, { ...
Hope that helps...
This is likely because PDFs are displayed in a plugin, rather than natively in the web browser. CSS will not have an effect on this, because CSS only applies to content rendered in the web browser. Google does have a system that converts PDFs to HTML for display in browsers, at which point there would be no z-index issues, but some formatting may be lost in the process, and of course it is no longer a PDF document. Unless there is some way to tell the PDF plugin itself to lower its z-index (and consider that not all users will be using the Adobe plugin, some may use Foxit or other programs) you may be out of luck.
Try position:relative and z-index adjustment to get it in front of the iframe.
You're showing a pdf in an iframe? I'm guessing it has some sort of flash viewer? If so, then make sure you set the wmode of the flash embed code appropriately.
http://kb2.adobe.com/cps/155/tn_15523.html