control idle time external page - javascript

I made an simple web page that reference an external page. Are there way to rollback to my web page when the external page to stay idle ?
example my internal page
<button class="button"> <a href = "https://www.searchsite.com"> Answer</button>
example my control page
<script language = "JavaScript">
location.href = "C:../mypage.html";
setTimeout("document.location = 'C:..mypage.html'",1000);
</script>

Instead of sending them to the page, where you have no control, load that page in an iframe. The iframe can be either created when the page loads (if the url is static) and just hidden with css or you can create the iframe with javascript when they click. Then use javascrpit to set the iframe size to the full width and height of the browser window. It will looks like the other site but you still have control.
In the event they resize the browser you may need to have a resize event listener. Also you may wish to modify the browser history so if they hit back they go back to your site.
Then when the timeout limit is reached you can use the setTimeout to just hide or remove the iframe.
Do note that some websites prevent the page from loading in an iframe. So test that first. If they don't allow it things get quite a bit more complicated you would need to use php to grab their pages html, css and javascript, make the changes you need, and then load it in your site.
Based on the url, in your code sample, I must assume you wanting to load some search engines page, many of them have API's you could use to incorporate their search functionality into your site.

Related

Load External Custom Page and Execute Custom CSS or Javascript on The page

i'm building an online document portal that supports all Microsoft Office formats.
Instead of building my own module, i'm utilizing Google Docs Online Viewer since it already handles
this task properly, my only problem is it loads the header toolbar, which i dont want.
take for example This custom pdf-URL(i just googled for any pdf document), The navigation toolbar at the foot, but the header toobar, i want it hidden - all within the iFrame.
https://docs.google.com/viewer?url=http://www.scorpioncomputerservices.com/Press%20Coverage/Billgates.doc&embedded=false&controls=false
After Inspecting the Element on Chrome, i found the section of code controlling the element, problem is, how to hide this element on page load, by forcing a script/style to be executed on the page, while loading.
i would like to know if there's a way i could force-delete or hide the element controlling the toolbar within the iFrame, or better still if there are any alternatives to what i intend to do. my code would have looked like this
var obj = iframe.document.querySelectorAll('[role="toolbar"]');
obj.parentNode.removeElement(obj);
// or - i'm not sure anyof this would work.. and since it is loaded inside an iframe
// how do i execute this.
obj.remove();
i dont want my audience to be able to download the document, obviously curious developers might find a way, but thats going to be less than 2% - 5% of the total users.
how do i go about this please using javascript/CSS/or any library.
If you change the GET variable embedded to true the viewer won't display the top bar, however there's no way to edit the page inside the iFrame as Google has enabled cross site protection so the browser will prevent you from running any javascript to modify the content of the iFrame.
The only way to use the google document viewer is to get your site to load it in the background (not using an iFrame) and modify it before serving the page to the user.
Or alternitively I reccommend using an open source JS PDF viewer such as ViewerJS

How to click iframe element in wordpress (all pages)?

I have a wordpress website, where I have pages with artists. This is an example: http://chasefetti.paradigmrecordsinc.com/ of a page from my website
On the top I have an iframe from arena.com
I want after the page loads to click the play button.
If I do it on the arenas page http://arena.com/artist/chasefetti like this (using firebug):
document.getElementsByClassName("fg icon-play-fg")[0].click()
it works, but on my website I guess it doesn't know about accessing the iframe.
How can I specify to access that iframe ?
Also the full mission that I gotta do is to play that button for each page. I am thinking to add a jquery that does what I want to do, to the templates page.
My main problem is accessing that element from the iframe
As far as I know(I tired it once) you can't do that, unless the source of the iframe is on the same site as yours, which isn't the case here.
Also check this same-origin policy.

Render optionally needed content only when needed on dynamic JS page

I am building a web application which I intend it to work like a traditional 'software': as few page reload, and page redirect as possible.
My solution to page reload and redirect is to have them as 'tabs' within the app, so when you click on another tab, the div of your current content will shrink to 0 width.
My question is: how do I prevent the content (writtent in JS, w/ PHP backend) in a tab to load unless when it's clicked on?
(Assuming this is what I should do to reduce unnecessary load)
Just don't load it until the link/button/etc. to the tab is clicked.
See also the jQuery tab implementations.
If your back-end is in PHP, you should control what you send to the client from there.
By the time the js gets the code, it is too late to control what not to load. You can hide it, or remove it, but it has already been loaded.
So, to reduce unnecessary load, and as a good practice, you should only send to the client the active 'tab'. That has to be done in PHP in your case.

playing audio on a web page without interruption by page reload

I want to create a web page that contains an (Flex/Flash) audio player that doesnt get reloaded when the page reloads. Currently, i am popping out the player in a new window. Please check http://www.paadal.com to see it in action.
What i want to achieve is to have the player in the same window, but it shouldnt reload. I am sure many of you will say use AJAX to prevent reloading of page like songza.fm. But the problem is search engines cannot index AJAX applications. This is true for a full fledged Flex app as well.
Is there any way to have the player in the same window? but not reload.
Thanks
Just add Ajax to existing page hierarchy, change each link to ajax call after page load (with javascript) and only reload content of some container. If you do it that way, search engines (and users without JS, with mobile phones for example) can access your page, and users with JS enabled can get bonus as music player
No, you cannot have a single element exempt from a page-reload, not without loading portions of the page via asynchronous calls to the server. When a window refreshes, it flushes the DOM out, including your mp3 player.
saying "searching engines cannot index AJAX apps" is totally dependent on how the application is written, there are plenty of ways to write an application that is still spider-able and plenty of other techniques for indexing (like www.sitemaps.org implimented by most major search vendors)
You can not maintain anything in a browsers memory after leaving the page (which is implied by a page reload)
For your use, it sounds like using old HTML frames/framesets could easily solve your issue, with a hidden frame containing your audio and the rest of your site in the main frame window.
It depends on the design of your website. You can us a standard html background sound, embedded media player or flash player on your main web page. The others pages will have to be used as a single pop up layered into each other. this will cause your music from the main page to play and allow you to navigate throughout your website because you linked the popup pages. To return to the main page use a close window script .

The Facebook footer bar is an iframe, so why it doesn't it reload with the rest of the page?

I want to know how Facebook is doing their iframe footer bar. I mean, i know they have an iframe on footer, but i want to know how they are reloading pages without reloading the iframe also, 'cause the iframe always stick there even though the page does reload again. Any ideas/knowledge?
EDITED:
Try clicking on a link which is different section and it changes the url and so far i know, if you try to change the URL, then the page will reload again. Also, try using Facebook on Chrome: you will see it reloads on every new page. It's not AJAX, because the URL wouldn't change if it was AJAX (do little research on URL changing, you will know).
Well, powtac pretty much gave you the answer: Facebook doesn't reload the whole page when you click a link, it requests the new content via XMLHttpRequest and refreshes only those portions of the page that change.
It's pretty slick about this: a naive implementation might not use real links at all, thus preventing you from opening, say, a different Facebook tab in a separate browser tab.
This technique - intercepting link navigation - also allows Facebook to use custom prompts when you try to navigate away without saving, and re-write paths as fragments, allowing it to track the current location in the URL without reloading the page.
FWIW, this question has already been asked and answered - see: How are the facebook chat windows implemented?

Categories