I have a simple file based with html that looks like this:
<html>
<body>
<b>Faculty</b><br><br>
Dr Mcgee
<br>
Dr Else
<br><br>
<b>Values</b><br><br>
1
<br>
2
<br>
</body>
</html>
I'm new to the web end of things, and was wondering how I could go about doing this: When the user hovers over a piece of text that's under the Faculty column of my school (I'm not gonna link my schools page because if I do someone from my school will likely create this extension). I want it to show a ratemyproff rating.
I have no idea on how to do this, because well I don't really know what to search on google to do such a thing?
I know there are CSS overlays over images like such:
https://www.w3schools.com/howto/howto_css_image_overlay.asp
But in my case, I'm not guaranteed what professors will be listed (I just want to understand the basic process of doing such things).
I don't think I can use PHP as that would require users who I want to share this eventually with to also have a php/server side thing installed. I guess I just don't know how to go about doing such a thing, and don't know what to search on the internet for it?
If the sites you are requesting data from aren't under your control you are very likely not going to be able to do this without a backend because of CORS, which basically prohibits site A from loading in data from site B. Site B would have to give you special permission. You can read about that here: https://developer.mozilla.org/en-US/docs/Web/HTTP/Access_control_CORS
However, if you are able to access the pages, or you decide to use a backend for this, the term you are looking for is ajax.
A rough outline of what your script might look like is:
Give these school elements a classname.
Also add data attribute to these elements to store data needed to get the information you are looking for (e.g. a url or a school name or id).
In the JS, set up a trigger so that when something with that classname is hovered over, an ajax request is made to a url to get the data you are looking for.
If the ajax request is successful, show the data you want to show in a container set up on the page.
As far as setting up the container to show, it would probably be simplest to add an empty container for each listing which will then be populated with data.
If you are new to all of this, I would suggest using jQuery. You can find the ajax documentation here: http://api.jquery.com/jquery.ajax/
First Step:
Use something to get the text and store in a javascript variable when hovered over the text that is searchable,
To do this put the text in a single node like <span class="searchable">This text is searchable</span>.
You can do something like this to get node value http://jsfiddle.net/5gyRx/
Second step:
Add an empty node <div class="data"></div> aboslutely positioned inside the container div which will be used to show fetched details about that text.
Third step:
Use JavaScript/jQuery to fire an Ajax call with the text you got from the first step and populate the empty node created earlier with this data.
Related
This is probably a simple lookup, but since I don't know how to word my question in the form of a google search, I brought it here. I have a number of divs with an image associated inside each div. With each image, I gave it an alt for word association. I might need to use title instead, but for now I am just going to use alt for the purpose of my question. I want the user to click each image and link them all to the same html page (kind of like an under construction page). For obvious refactoring, I only want one of these html 'under construction sites'. However, I want them slightly personalized to show that the image they clicked is being noted as under construction. iE:
<div class="view view-first">
<img src = "img/storage.jpg" alt="Storage Corp">
<div class="mask">
<h2>Storage Rental Space</h2>
<p>Develepment, Server</p>
Read More"
</div>
</div>
So I would want them to click on read more, have them go to server.hml where it says something like 'Sorry Storage Corp is under constriction'.
Easy enough for one image, but let's say I have 20, and I want one server.html that spits out a different 'Sorry xxxx is under construction'. Do I created an empty div in server.html and call the text from the image alt text for the image they clicked into the html page for each image? If so, what is the proper syntax? Maybe I have been too knee deep in JS for the last few weeks that I just can't think of a proper way to do with without declaring a universal scope to hold the string and call it on an image click?
Thanks for any tips!
You’re likely to need either a server-side language or JavaScript to make the result page dynamic. The simplest way to do this would be to include the text you want in the href as part of the URI. For example "server.html?text=Sorry+wrong+page". In server.html, you could then grab this variable from the GET string and put it into the page.
All server-side languages give you access to GET variables. In JavaScript, it’s a little more complicated. See this question for ways to do it.
Hello i want to write an extension myself and looking for guides/tutorials. I have never created one but i am good with js and html/php.
I need a tutorial/sample code, and here is what i want to do:
when an extension is loaded, i want to add icon next to the google search results (matched links). What it would do is, it will check all the link in a webpage by matching them with a database (php server mysql) and if a match of a domain is found, then it will simply add an icon next to that link (by ofcourse manipulating dom).
Seems like a fairly simple task to do. So if anybody can help me by showing me a correct path or if there is any similar extension already available to learn from, then please advice.
I would be very grateful, thanks!
http://developer.chrome.com/extensions/getstarted.html
Have a browse through this. You'll likely get the hand of it if you're proficient with JS.
What I Want: Very simply I have a C program that generates a variable periodically, I want to be able to display this value on a website.
Restrictions: The webpage is HTML, php does not work, javascript does [I have tried a few javascript solutions but they have all been long, tedious and in the end ineffective] I want it to be able to format the text so that it matches the rest of the webpage. Above all I'd really like to find something simple that works.
Freedoms: I can output the variable from my C program to just about any file type and content that I want, the file is hosted so is available locally to the server or online for the client.
Preferred Solutions: I am currently playing around with the object and iframe tags native to html. They give a nice simple input:
<object height=20 width=75 type='text/plain' border=0 data="URL/filename.txt"></object>
inserts the contents of my file, but it can't be formatted so I am stuck with 12pt Courier font which is not acceptable. Using
<iframe seamless height=20 width=75 scrolling='no' src="URL/filename.htm"></iframe>
and adding my desired font/colour/size etc to the htm file gets me the right text style, but htm has a large amount of white padding around it which I can't seem to get rid of so I have to make my iframe quite large for the text to be displayed, but then it doesn't fit smoothly with other text.
So anyone that can answer one of four questions:
How to remove excess padding from htm
How to format the style of a html object
Is there anything in Java as simple as the php [so apparently it doesn't show php code even when you quote it as code. But basically using echo and get_file_contents to insert the contents of a txt file into a html page]
Propose an alternate solution
Padding and style can be handled by css.
By java I assume you mean javascript - google-ing will help you. Without details of what your server is running and what is dispatching your pages we can't give you an exact answer. You might want something with ajax to keep it updating in the background.
Try googling your question, you'd be surprised how often this helps.
I'm not sure what you're trying to do once you get the variable into your web page, but I think something like the following could be useful.
Create a hidden div on your page
Have your C application write the variable to some file
Use jquery to execute an ajax call to pull that value into the div ( or whatever other container you want to use
using some type of timer, execute the ajax call every X period of time, which will then get your up to date variable
on your main page, have another timer that will then come in to that container, grab your value and then you are free to do what you want with it.
This is all off the top of my head without knowing much about what you're trying to accomplish. If you provide some further details we may be able to help you a little more.
You need AJAX... that's just a fancy buzz-word. It means you can tell JavaScript can get a file from the server without reloading the page and you can insert data from that file into your HTML.
AJAX is made much simpler by using a JavaScript library like jQuery, but it can be done without jQuery. There's a pretty decent Getting Started tutorial at Mozilla Developer Network if you want to do it the hard way, but I really recommend jQuery.
As far as formatting... any formatting... you need to use CSS. Just about everything about the appearance of anything on a web page is controlled by CSS. MDN has a Learn CSS section, too.
load jquery on you main html file
put a div with some id (example id="newvalue")
make you c program to write the output in a file (for example value.html)
on main html page header, after jquery include code add some javascript like
$( document ).ready(function() {
$("#newvalue").load('yoursiteurl/value.html');
});
On my site, I collect information on items in a game I play. I would like to implement some sort of custom search for the items that is both easier to use, and displays the result in a more aesthetic manner.
Currently, I use a wikidot site which allows tags to be assigned to pages and they can be searched, but searching multiple tags doesn't work as I would like. It will start the list with pages with all the tags, then pages that have one of the tags, and finally pages that just happen to have the tags in the body. Also, the results are presented as the page title, the first few lines of text from each page (without any line breaks making it hard to read), and finish with a link to the page. [See example: http://imgur.com/a/gyTtD#0 ] What I would like for the results are something like the following: http://imgur.com/a/gyTtD#1, which is an actual page from my site, but it's not dynamic, I must edit that page if I want to keep it up to date; and for any permutations of tags I want to create a page like that for, I need to first find all of the relevant items, organize them how I want, then make the page containing the includes for each of their individual pages (each item has its own page, I just put an [[include item-name]] wherever I want that item to show up on other pages, which just puts the body of the page in.
What I'm looking for is the best plan of action to make this happen. I'm familiar with HTML/CSS/JS, but not much other webdev related stuff. Is there a way I could have a page with a comma separated list that I could parse with JavaScript to search pages? Or if should I look elsewhere, what are some good tutorials or quality sources to read up on how to do this?
Thank you in advanced for any answers you can provide.
If you still require help with this, I'd suggest asking on the Wikidot community wiki instead, as there are more people able to help you with your question there (as you have a Wikidot site).
URL: http://community.wikidot.com/forum
I'm working on a product web page. This product page has multiple attributes such as size and color. I'm working on building an image swap script (jQuery) that will swap the main image on the page based on events.
Easy enough and there's a million tutorials how to do that.
Where this gets less trivial is the attributes. I want to be able to swap images based on the aforementioned attributes selected.
First, the page will display an image that has been set as "default" for a given product.
Second, if someone clicks "size: large", it will show the image that's set for size large.
Third, if someone clicks "color: red", it will pull the "large : red" image and swap it for the main image.
Fourth, if someone now clicks "size : small", it will fetch the "small : red" image file.
Fifth, if someone now clicks "color : blue", it will fetch the "small : blue" image file.
You get the idea.
I have a database with the size:color table. The question is, what is the best way to get this data in the HTML page so I can load it into JavaScript?
I want to avoid an AJAX call because of the extra network overhead and the page load will have already accessed the database and gathered all the data, I don't want to call the database again and have it do all that work a second time.
I could hide the data with CSS (display:none) in the liked elements, but I would be concerned with SEO. There's a bit of data to hide. There's thumbnail image URLs, standard size and large size. I certainly wouldn't want to save it as JSON format like that and just display:none.
I thought maybe saving it in HTML comments and using the jQuery comments() plug-in. I have concerns of speed and feasibility.
Any thoughts on how people best store data in the HTML file to access with JavaScript to build some nice page experience effects?
---- EDIT ----
Having slept on this, I'm thinking that I'm over thinking this whole thing. This whole time I'm trying to figure out how can I add all this product image information into HTML so JavaScript could use it add effects, when all I think I need to do is just have my PHP spit out the image/attribute table as a JavaScript object so I can use it. Instead of trying to figure out some way to re-load it from HTML. Which is just over thinking the whole thing.
You can spit out the page with a JavaScript block that contains the data for the product in JSON format.
Alternately you can get clever with class names and put the data in there: red_A12345 would parse out to red image = "A12345.jpg"
see my edited comment -
I found that creating a JS variable/object via PHP worked quite well for passing the data to JS so I could create a JS app that did the image swapping complexity as described above.
I use Zend and jQuery as PHP/JS frameworks so the code sample will reflect this. But the concept will work for any development platform:
// parse the object into Json in PHP to pass to JavaScript, using Zend_Json
$jsonSource = Zend_Json::encode($dataObject);
// parse the Json in jQuery as a JavaScript script
$script = 'var imgTable = jQuery.parseJSON(\'' . $jsonSource . '\');';
// append the script to my Zend_Framework template so it prints out
$this->view->headScript()->appendScript($script, $type);
In addition, I think I'll be looking into the practicality of doing this for building a dynamic check-box web-form that will enable/disable form options based the current inputs and if there are any results available for future options, based on current options selected.