I'm trying to set the width and height of TikTok's embedded post in my webpage because the default size seems to big.
From the documentation on TikTok's Developer site, we can't manually set the width and height of the embedded content so I'm planning to set its height when the embedded content is fully loaded.
When I inspect the webpage, here are the piece of code generated when the embedded content is not fully loaded yet :
The dynamically generated piece of code is the <iframe> tag (and also many tags inside of it).
And those code change when the iframe is fully loaded, like this :
I already know which tags/elements I should apply CSS to to make the Embedded video smaller, but i don't know how to select the generated element using jQuery.
How can I achieve this?
Note :
"Dynamically generated" code means that i don't write the code myself, but the code generated because i write the embed code.
Related
I am writing a preview function to let user preview the HTML file they uploaded and do some minor editing. The HTML file will contain no Javascript and no external CSS. All CSS are either inside style tag or inline. Images, on the other hand, will always be external as we don't provide space for storing images.
iFrame is not a good solution, because:
The preview is before actually saving the content, so I cannot provide an URL for iFrame to load the page.
It is difficult to touch the element inside iFrame. As the user will be doing minor update in another text box showing the plain HTML, I will need to update the elements inside frequently.
However, if I just insert content into an <div> the repeated <html>, <head> and <body>tag will crash the page.
So, is there a way I can preview the HTML without iFrame?
if you dont want to have the main app to affect the styling of the preview, you need to use iframe. have you see iframe's content window? https://developer.mozilla.org/en-US/docs/Web/API/HTMLIFrameElement/contentWindow. this might be the answer you are looking for. So basically here you try to access the DOM of your iframe. give it a try!
preview = getYourIframeDom();
code = getYourHtmlCodeHere();
preview.contentWindow.document.open("text/html","replace");
preview.contentWindow.document.write(code);
preview.contentWindow.document.close();
Is there source code (or a browser plugin) to convert the contents of an HTML 5 web page to an image file? This would not just include the visible contents, but the hidden contents as well (assuming there were scroll bars in the page). If there isn't, any advice on how to approach this particular functionality would be appreciated, and I can look into it.
I found this...
html to jpg with c#
However...
I think they just had text in the page, so it doesn't have any dynamic images on the page. My page specifically uses the HTML 5 canvas functionality to draw images. So that must be part of the image file.
It looks like you should be able to do it using javascript with this technique:
http://www.html5canvastutorials.com/advanced/html5-canvas-save-drawing-as-an-image/
Make sure to take note of the following caveat however:
Note: The toDataURL() method requires that any images drawn onto the canvas are hosted on a web server with the same domain as the code executing it. If this condition is not met, a SECURITY_ERR exception is thrown.
EDIT: You may also want to check out these related questions:
Save HTML5 canvas contents, including dragged-upon images
How to save a HTML5 Canvas as Image on a server
I have HTML content (mostly e-mails) that I would like to display in an archive. Seeing as some of these records contain their own styles, images, and headers, they need to be displayed independently and confined to its container so as not to interfere with the page displaying it. I immediately thought of an iframe.
I have two ways I can do this, both are somewhat indirect. 1) I can draw an iframe that points to about:blank and use Javascript to draw the content into the iframe after the page loads. 2) I can create a secondary PHP page that returns only the content of the e-mail and point the iframe to it as the src attribute. These solutions are simple enough, but I was wondering if there is a more direct way.
I found solutions like these, but they suggest using options 1 or 2 above. The point of this question is: "Is there a more direct way to preload HTML content directly into an iframe than to rely on Javascript or a secondary page?"
Html code as IFRAME source rather than a URL
Specifying content of an iframe instead of the src to a page
I am not sure how much more "direct" you can get than to specify a page in the src attribute of the iframe.
You already link to the only answer that actually works in your question that does not include using a src page or using EMCAScript to draw the iframe content. Remember thought that data urls are still limited in the number of bytes of data they can display in most browsers because there are limits to the length of the data url itself.
I would really suggest that you use the src attribute with a seperate backend script as that will decouple and increase the maintainability of your code as you can develop the scripts responsible for the page itself seperatly from those that show the iframe content.
My understanding of the iFrame is that the content inside is exactly what is included in the src. I've seen numerous widgets like Facebook etc that use an iFrame.
When I try using an iFrame, I have an HTML file with only a div and some content inside, no head, body, etc. Just the content in HTML. But the iFrame always loads the entire page and ends up giving me a recursive iFrame within an iFrame.
I don't see how this is since my HTML file that is referenced in the iFrame is just content and nothing else. I'm not including a header, footer but all that gets displayed anyway.
I've seen where people are talking about scrolling the iFrame to a certain section and even using the div's id in the src and setting the scrolling=no. This works, but my iFrame content will reload based on user input and once it reloads it returns to the top-left portion of the page inside the iFrame.
This doesn't make any sense. Maybe this is supposed to be a widget or something?
Edit for SD to show some formatted code:
#Surreal Dreams
That's the strange thing. I'm using web2py so it might be something inherent in the backend that's causing that. The html file literally is a div wrapper with some elements inside. But I think the web2py is adding the header in there even though I'm not extending any kind of layout. I eventually did get it to work correctly by referencing the same html file saved offsite at another url. There it displayed properly without web2py interfering with the html structure.
What was happening before, I had code like this:
{{extend 'layout.html'}}
<div class="wrapper">
<page content>
<aside id="iFrame wrapper">
<iframe src="/rates.html"></iframe>
</aside>
</div>
And that's the basic structure of the web2py page where inside layout you have all your headers, footers, etc. Well what was happening is that it would generate the entire page, and where you get to the iFrame, it generates the page again inside that iFrame, and then on down to the iFrame again, which continues to infinity rendering the page inside each iFrame's page.
An iframe will always load an entire Web page, referenced in your iframe's src attribute. Even if your file only contains a div, I believe the browser considers it a full page and automatically adds a head and body.
"I've seen where people are talking about scrolling the iFrame to a certain section" => right, once the page in the iframe is loaded, you can use JavaScript to access and manipulate its DOM:
var myIframe = parent.document.getElementById("myIframe");
var window = myIframe.contentWindow;
Does the html tag noscript load the content in the background, even when javascript is enabled?
I have a random image that is called by JS each time the pageloads, but I would like all of the links (not just the current random one) to be crawled. At the same time, I don't want the pageload to slow down because images are loading in the background like they do with display:none. I also want to call these images and links in the html because of CMS reference issues with Javascript.
Image references in NOSCRIPT tags are not loaded at all when Javascript is enabled.
You can test this my making a number of large images, putting them inside the NOSCRIPT tag and watching browser activity.