Is there a reliable way to know from where my page is called? I know there is the referer string in header, but it's not reliable.
I'm building a page that contains some elements (like logo for example) that should be loaded if the page is called by the same context and not loaded if it's called by outside.
I'm thinking to put a hidden attribute somewhere that could be used in any href of submit, but I don't know the better way to do it.
I'm using sitemesh and boostrap.
I could manage this using urlRewrite.
I created a rule like this:
<rule>
<from>^/popup(.*)</from>
<to>$1?popup=true</to>
</rule>
Whit this rule, I can call any url that I need using /popup before to change the layout I need.
So, using the url http://www.mypage.com/mypage.jsp will show the page fully formated and using the url http://www.mypage.com/popup/mypage.jsp will show the page without logo (what I need).
Related
I have made an web page. There are two iframes
In it. First is of index and second one is description page. I want that when I click on the any index hyperlink, then it is displayed on main description page.
How it will be possible? please give me the HTML code
You can use a button and when clicking it, change the url of the iFrame using Javascript like this:
document.getElementById('iframe-id').src = newLink;
You can use the data-attribute to store the wanted link in your html.
In case you want to do that: It is not possible to react to things outside of an iFrame through an iFrame. So you cannot put a link in iFrame1 and have it reload iFrame2, because those are two different websites and don't see each other.
Now, idk what exactly you are planing to do, but I really hope, that you don't want to make your entire site like that. Using iFrames is really only useful for things like inserting widgets (like Codepen etc.), but should never be used to display information from your own site. If you don't want to copy your html for every site then use PHP. If you don't want to reload your entire webpage (which is pretty much never a problem) you can use AJAX-requests to load parts of your website. (Frameworks like React.js, Angular.js and Vue.js do that for you)
I'm trying to capture div#map-canvas from my site, www.RichBlocksPoorBlocks.com, to make an iframe that people can embed anywhere.
Here's my iframe
<iframe src="http://www.richblockspoorblocks.com#map-canvas" style="width:600px; height:400px;"></iframe>
It goes to div#map-canvas, but it also loads the rest of the page as well. I'd like that div to be the only thing in the iframe.
Is this possible with an iframe?
To achieve this, it would be easier to create a separate .php or .html document which contains only the parts that you want to show in the iframe and exclude everything else.
So, instead of the iframe pointing to "http://www.richblockspoorblocks.com#map-canvas", it would point to something like : "http://www.richblockspoorblocks.com/map-canvas.php".
This would be a very quick and efficient way of doing what you want, and doesn't require any outside libraries or javascript.
When you call http://www.richblockspoorblocks.com#map-canvas the hash will probably cause the browser to look for a corresponding <a name="foo">bar</a> so this won't work using an iFrame.
What I would recommend doing is writing a script which you call from your iFrame which accepts the name of the page fragment to load. I know using jQuery's $.load() you can call an element ID to load a page fragment, and I think it's also possible in PHP too...
You cannot use hash links in iframes.
You can and should use, few lines of you'r favorite server side language to create the specific content you want to render and then link to it. in that way, you'r server will send out to the end user only the desired data and also it saves bandwith and loading time.
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.
I see on some website (like StackOverflow, yahoo, the US Homeland Security department, ...) a word associated to a link that, when clicked, not only loads a page, but also, displays that page at the exact location where the contain related to the word starts.
How can I obtain that with ASP.NET MVC? (by the way, do I need javascript for that?)
Thanks for helping
Go to the other content
<a name="jumpHere">Some content</a>
Also the URL can have /yourpage.html#jumpHere or with variables, /yourpage.html?var1=foo&var2=bar#jumpHere.
Since we're talking about the hash (#), it's usually used for jumping to a specific part of the page. Because of that, it won't reload the whole page. This is useful for web applications that move from one view to another using only AJAX. To make each view bookmarkable, JavaScript "saves" the state (what view you are on) using location.hash to the URL. The next time you open the URL, JavaScript reads it and loads the correct view. In HTML5 this is superseded by pushState.
1) Find the coordinates of the element on the page
2) window.scrollTo(x,y)
Its called an anchor tag.
Place this in your HTML.
<a name="name"></a>
If you call this URL, it will jump to that place.
html-file.html#name
See: http://www.w3schools.com/tags/tag_a.asp
You can use a named anchor to do this with HTML, without javascript. here is a link explaining this.
It is very simply done with id tag of differnt html elements
for eg :- an div element if it is having "footer" as its id and is placed at the bottom of the page then, http://url-address-to-thatpage.html#footer will load the page and scroll it too the footer. (adding the "#idoftheelement" after the page url)
It is also possible to load and scroll the page with javascript.
You need to create a named anchor within the page. This will have the result you're talking about, almost like creating a "bookmark" within a page. No javascript required.
First, create the anchor using the <a> tag with the name attribute specified (in this case, section1):
<a name="section1"></a>
Then, to link to that anchor from the same page, just use something like this:
Go to Section 1
If you're linking to that anchor from another page (in this case, mypage.html), append #section1 at the end of the url:
Go to Section 1 in MyPage.html
For more information, see here.
Another way to do it is with the "id" attribute if it's not an anchor tag you'd like to bookmark. For example:
<div id="bookmark1">Content...</div>
Then, you can link to it with an anchor tag like this:
Go to content
Or link to that spot on the page by appending a #bookmark1 to
http://yourwebsite.com/page#bookmark1
I would like to set the default of a drop-down menu of a webpage by passing the default value in the url.
Id like to put a link on a another webpage to this site where the: "I would like my contribution to go to:" option is set to Pakistan: moonsoon floods e.g. by doing something like:
http://donate.ifrc.org/?desc=Pakistan: monsoon floods
but this doesnt seem to work. Any ideas i want to put up this link to get as many people to donate as possible. Thanks.
~f
Unless the site you are linking to has specifically included code on their pages to support it, you are not going to be able to control how their site performs by changing the URL.
If you were trying to do this on your own site, you could easily do it by referencing the querystring parameters in whatever server-side language you built the site with, or on the client-side via Javascript. But in either case, the site itself controls how it responds to a URL, not the other way around.