On my webpage, I've got several tabs and, in one of them, I want to display an iframe containing a Google Doc.
When the iframe is displayed, the google doc is loaded and there is no problem.
But by default, this tab is hidden (so, the iframe inside too)
Something like
<div id="tab-1">...</div>
<div id="tab-2" hidden>...</div>
<div id="tab-3" hidden><iframe src="https://docs.google.com/document/d/......../edit?usp=sharing&embed=true"></iframe></div>
with jquery to handle actions
And, when the iframe is hidden, it seems like it can't load until it's not hidden anymore. The problem is I endlessly get popup saying
This error has been reported to Google and will be examined as soon as possible. To continue, please refresh the page.
In a page without tab, if the iframe has the "hidden" attribute, the bug occurs too
I could get around the problem by "hiding" the iframe with a "heigth=0" but when it's hidden in a tab, the problem comes back
Have you ever met this problem and find a way to solve it ? Do I have to "dynamically load" the google doc iframe when it becomes visible ? (And then, how to ?)
Thanks
I don't mind if the iframe is loaded later so I decided to load the <iframe> with jquery, when the tab is opened, by storing the src into the attributes.
There could be problems though, if the tab is closed while the iframe is not fully loaded.
That's why I prevent this by stop loading if the tab is changed, (and don't if it's already fully loaded.)
html
<iframe data-src="https://docs.google.com/document/d/......"
class="google-doc"></iframe>
jquery
//Stops iframe loading
$(".tab-to-close iframe.google-doc").not('.isloaded').prop('src','')
//Change the tabs
$(".tab-to-close").hide();
$(".tab-to-open").show();
var iframetoload = $(".tab-to-open iframe.google-doc");
//Load iframes on the new tab
iframetoload.prop('src',iframetoload.data('src'))
//If it's loaded in time, save it so it's not destroyed on tab changing
iframtetoload.on('load', function(){
$(this).addClass('isloaded');
});
I'm modifying a cefsimple app to meet my needs. I have a long starting thread at the background so it takes a while until the web page is shown (5-10 secs). In the meanwhile I want to show some kind of splash screen, or at least some HTML before the main page is rendered. What's the best (or any) way to do it?
Thanks in advance!
We have an html file compiled into our application and we pass that URL to CefBrowserHost::CreateBrowserSync().
See resource_util_win.cpp in cefclient sample, in particular GetResourceId() for associating the URL to the compiled resource ID.
Meanwhile, the body of our splashscreen.html has
<body class="splash" onload=" pageLoad() ">
and the pageLoad() looks like
function pageLoad() {
window.location = "www.yourrealurl.com";
}
}
Our splash screen has a background set by style sheet and an animated gif, and it goes away as soon as the requested url comes in.
If you have already gotten the server response but it takes a long time to render, this won't help. We use Angular in the loaded page to hide it until it is finished loading its dependencies.
<div ng-cloak class="ng-cloak" ng-if="IsInitDone()">
First, I am a new at webpage programming and I didn't seem to find a similar question to address the situation I am trying to figure out. Maybe I wasn't using the right terminology...
I have a parent html file (House.html) with essentially two iframes displayed ("room" and "info"), see below.
House.html<br>
-iframe "room"<br>
-iframe "info"
iframe "room"<br>
-Room.html<br>
-->link "link_A"<br>
-->link "link_B"<br>
iframe "info"<br>
-A.html (some text)<br>
-B.html (some text)<br>
Within the "room" iframe I am loading Room.html where there are multiple links contained (link_A and link_B). Clicking a link (link_A) is supposed to change "info" iframe to show A.html. Again, clicking link_B is supposed to change "info" iframe to show B.html. All html pages are on the same domain.
I understand how to link a child to a parent, but I am trying to figure out how to display different html pages in a specific iframe within a parent html page from a third html page.
Can anyone point me to an answer? Would I need to use an if() function in House.html and a target value from link_A or link_B?
From http://webdesign.about.com/od/iframes/qt/target-links-iframes-and-frames.htm
When you create a document to be inside an IFRAME, any links in that frame will automatically open in that same frame. But with the target attribute on the link (the A element or AREA element) you can decide where your links should open.
You can choose to give your iframes a unique name with the id attribute and then point your links at that frame with the ID as the value of the target attribute.
For your specific example, it would look something like:
Page A
Page B
You could use JavaScript to change the src attribute of the second iframe. You can do that with jQuery - e.g. put this code into iframe1 (untested).
$('a').click( function() {
$('#iframe2', window.top.document).attr('src', 'new-src.html');
});
Note that the parent page and the frames need to come from the same domain and subdomain (due to the single origin policy). If that's not the case, you would probably need to reload the whole page, by putting target="_top" in the link inside the iframe, and changing the src on the server side.
Heres a tricky one . .
I have a webpage (called PageA) that has a header and then simply includes an iframe. Lets call the page within the iframe PageB. PageB simply has a bunch of thumbnails but there are a lot so you have to scroll down on PageA to view them all.
When i scroll down to the bottom of the pageB and click on a thumbnail it looks like it takes me to a blank page. What actually happens is that it bring up the image but since the page that is just the image is much shorter in height, the scroll bar stays at the same location and doesn't adjust for it. I have to scroll up to the top of the page to view the picture.
Is there anyway when i click a link on a page that is within an iframe, the outer pages scroll bar goes back up to the top
thks,
ak
#mek after trying various methods, the best solution I've found is this:
In the outer page, define a scroller function:
<script type="text/javascript">
function gotop() {
scroll(0,0);
}
</script>
Then when you define the iframe, set an onload handler (which fires each time the iframe source loads i.e. whenever you navigate to a new page in the iframe)
<iframe id="myframe"
onload="try { gotop() } catch (e) {}"
src="http://yourframesource"
width="100%" height="999"
scrolling="auto" marginwidth="0" marginheight="0"
frameborder="0" vspace="0" hspace="0" >
</iframe>
The nice thing about this approach is it means you do not need to make any changes to the pages included in the iframe (and the iframe contents can happily be in another domain - no cross-site scripting issues).
Javascript is your best bet. You can use the scroll() method to scroll back up to the top of your IFRAME. Add a javascript handler in the body load so that each time you click a thumbnail, call a function that calls scroll() to scroll up.
I've spent a considerable amount of time trying to figure out how to scroll to the top of the iframe from within the PHP code I was calling (from within the parent ASP.NET page). I never figured I could scroll to the top using the same javascript but in the iframe's onload event. Thanks!
I have built a basic data entry application allowing users to browse external content in iframe and enter data quickly from the same page. One of the data variables is the URL.
Ideally I would like to be able to load the iframes current url into a textbox with javascript. I realize now that this is not going to happen due to security issues.
Has anyone done anything on the server side? or know of any .Net browser in browser controls. The ultimate goal is to just give the user an easy method of extracting the url of the page they are viewing in the iframe It doesn't necessarily HAVE to be an iframe, a browser in the browser would be ideal.
Thanks,
Adam
I did some tests in Firefox 3 comparing the value of .src and .documentWindow.location.href in an iframe. (Note: The documentWindow is called contentDocument in Chrome, so instead of .documentWindow.location.href in Chrome it will be .contentDocument.location.href.)
src is always the last URL that was loaded in the iframe without user interaction. I.e., it contains the first value for the URL, or the last value you set up with Javascript from the containing window doing:
document.getElementById("myiframe").src = 'http://www.google.com/';
If the user navigates inside the iframe, you can't anymore access the value of the URL using src. In the previous example, if the user goes away from www.google.com and you do:
alert(document.getElementById("myiframe").src);
You will still get "http://www.google.com".
documentWindow.location.href is only available if the iframe contains a page in the same domain as the containing window, but if it's available it always contains the right value for the URL, even if the user navigates in the iframe.
If you try to access documentWindow.location.href (or anything under documentWindow) and the iframe is in a page that doesn't belong to the domain of the containing window, it will raise an exception:
document.getElementById("myiframe").src = 'http://www.google.com/';
alert(document.getElementById("myiframe").documentWindow.location.href);
Error: Permission denied to get property Location.href
I have not tested any other browser.
Hope it helps!
document.getElementById('iframeID').contentWindow.location.href
You can't access cross-domain iframe location at all.
I use this.
var iframe = parent.document.getElementById("theiframe");
var innerDoc = iframe.contentDocument || iframe.contentWindow.document;
var currentFrame = innerDoc.location.href;
HTA works like a normal windows application.
You write HTML code, and save it as an .hta file.
However, there are, at least, one drawback: The browser can't open an .hta file; it's handled as a normal .exe program. So, if you place a link to an .hta onto your web page, it will open a download dialog, asking of you want to open or save the HTA file. If its not a problem for you, you can click "Open" and it will open a new window (that have no toolbars, so no Back button, neither address bar, neither menubar).
I needed to do something very similar to what you want, but instead of iframes, I used a real frameset.
The main page need to be a .hta file; the other should be a normal .htm page (or .php or whatever).
Here's an example of a HTA page with 2 frames, where the top one have a button and a text field, that contains the second frame URL; the button updates the field:
frameset.hta
<html>
<head>
<title>HTA Example</title>
<HTA:APPLICATION id="frames" border="thin" caption="yes" icon="http://www.google.com/favicon.ico" showintaskbar="yes" singleinstance="no" sysmenu="yes" navigable="yes" contextmenu="no" innerborder="no" scroll="auto" scrollflat="yes" selection="yes" windowstate="normal"></HTA:APPLICATION>
</head>
<frameset rows="60px, *">
<frame src="topo.htm" name="topo" id="topo" application="yes" />
<frame src="http://www.google.com" name="conteudo" id="conteudo" application="yes" />
</frameset>
</html>
There's an HTA:APPLICATION tag that sets some properties to the file; it's good to have, but it isn't a must.
You NEED to place an application="yes" at the frames' tags. It says they belongs to the program too and should have access to all data (if you don't, the frames will still show the error you had before).
topo.htm
<html>
<head>
<title>Topo</title>
<script type="text/javascript">
function copia_url() {
campo.value = parent.conteudo.location;
}
</script>
</head>
<body style="background: lightBlue;" onload="copia_url()">
<input type="button" value="Copiar URL" onclick="copia_url()" />
<input type="text" size="120" id="campo" />
</body>
</html>
You should notice that I didn't used any getElement function to fetch the field; on HTA file, all elements that have an ID becomes instantly an object
I hope this help you, and others that get to this question. It solved my problem, that looks like to be the same as you have.
You can found more information here: http://www.irt.org/articles/js191/index.htm
Enjoy =]
I like your server side idea, even if my proposed implementation of it sounds a little bit ghetto.
You could set the .innerHTML of the iframe to the HTML contents you grab server side. Depending on how you grab this, you will have to pay attention to relative versus absolute paths.
Plus, depending on how the page you are grabbing interacts with other pages, this could totally not work (cookies being set for the page you are grabbing won't work across domains, maybe state is being tracked in Javascript... Lots of reasons this might not work.)
I don't believe that tracking the current state of the page you are trying to mirror is theoretically possible, but I'm not sure. The site could track all sorts of things server side, you won't have access to this state. Imagine the case where on a page load a variable is set to a random value server-side, how would you capture this state?
Do these ideas help with anything?
-Brian J. Stinar-
Does this help?
http://www.quirksmode.org/js/iframe.html
I only tested this in firefox, but if you have something like this:
<iframe name='myframe' id='myframe' src='http://www.google.com'></iframe>
You can get its address by using:
document.getElementById('myframe').src
Not sure if I understood your question correctly but anyways :)
You can use Ra-Ajax and have an iframe wrapped inside e.g. a Window control. Though in general terms I don't encourage people to use iframes (for anything)
Another alternative is to load the HTML on the server and send it directly into the Window as the content of a Label or something. Check out how this Ajax RSS parser is loading the RSS items in the source which can be downloaded here (Open Source - LGPL)
(Disclaimer; I work with Ra-Ajax...)
Ok, so in this application, there is an iframe in which the user is supplied with links or some capacity that allows that iframe to browse to some external site. You are then looking to capture the URL to which the user has browsed.
Something to keep in mind. Since the URL is to an external source, you will be limited in how much you can interact with this iframe via javascript (or an client side access for that matter), this is known as browser cross-domain security, as apparently you have discovered. There are clever work arounds, as presented here Cross-domain, cross-frame Javascript, although I do not think this work around applies in this case.
About all you can access is the location, as you need.
I would suggest making the code presented more resilitant and less error prone. Try browsing the web sometime with IE or FF configured to show javascript errors. You will be surprised just how many javascript errors are thrown, largely because there is a lot of error prone javascript out there, which just continues to proliferate.
This solution assumes that the iframe in question is the same "window" context where you are running the javascript. (Meaning, it is not embedded within another frame or iframe, in which case, the javascript code gets more involved, and you likely need to recursively search through the window hierarchy.)
<iframe name='frmExternal' id='frmExternal' src='http://www.stackoverflow.com'></frame>
<input type='text' id='txtUrl' />
<input type='button' id='btnGetUrl' value='Get URL' onclick='GetIFrameUrl();' />
<script language='javascript' type='text/javascript'>
function GetIFrameUrl()
{
if (!document.getElementById)
{
return;
}
var frm = document.getElementById("frmExternal");
var txt = document.getElementById("txtUrl");
if (frm == null || txt == null)
{
// not great user feedback but slightly better than obnoxious script errors
alert("There was a problem with this page, please refresh.");
return;
}
txt.value = frm.src;
}
</script>
Hope this helps.
You can access the src property of the iframe but that will only give you the initially loaded URL. If the user is navigating around in the iframe via you'll need to use an HTA to solve the security problem.
http://msdn.microsoft.com/en-us/library/ms536474(VS.85).aspx
Check out the link, using an HTA and setting the "application" property of an iframe will allow you to access the document.href property and parse out all of the information you want, including DOM elements and their values if you so choose.