Write A Class That Dynamically Loads Scripts And Css Files?
Aug 26, 2010
I am trying to write a class that dynamically loads scripts and css files, but ran into a problem I just can't seem to solve. Below is a simplified version of the class:
The loadScripts function should keep track of the scripts that have finished loading by removing them from the loadingFiles array. The problem is, that the changes made to the array in one call to the local function fileLoaded won't show up in the next call (no elements are ever deleted). I suspect this has something to do with scoping rules, but I can't quit get a grip on it.
Instead of using many external scripts and CSS files in the header, can I just load them all using Javascript? The easiest way that I can think of is using document.write.. to get all the external files.
I have Win 7, IE9. I have a HTML file on my hard drive, with Javascript within. When I load the page, it keeps popping up Do u want to allow this content, I have to click to allow. I want to stop this, and after doing some searching I found the setting in Internet Options, Advanced - "Allow active content to run in files on my computer".
Perfect.
Doesnt work. When i check this box, the page loads without the warning, but then the Javascript just doesnt work. Getting quite annoying, because this file is my home page.
I am relatively new to java and have already tried many ways to write to text files with Java. Is there any way to write to a text file without overwriting what is already there??
I have a page and there is a 3rd party response that comes in that I have to key off of. IF the third party response exists, then I need to build the iframe and populate it with a src and attributes (height/width) etc...
So basically, the flow is like this..
page loads callback to 3rd party. --> is third party connected = yes --> build iframe (in parent page) ---> is third party connected = no --> do nothing
I have a use case in which I need to insert an IFrame as a child to an existing DIV just after the page load completes. That is, the request to fetch content for this Iframe should go to the server "after" all the media in the page has loaded, basically after the page "load" event and not the document ready event.My document structure is as follows:
Consider the following code as seen in the Scriptaculous library:
Code: require: function(libraryName) { // inserting via DOM fails in Safari 2.0, so brute force approach document.write('<script type="text/javascript" src="'+libraryName+'"></script>'); } This will make the browser load more libraries, which is cool. However, when using Content-Type application/xhtml+xml, Firefox gives an error in the JS Console:
Code: Error: uncaught exception: [Exception... "Object cannot be created in this context" code: "9" nsresult: "0x80530009 (NS_ERROR_DOM_NOT_SUPPORTED_ERR)" location: "http://localhost/script/scriptaculous/scriptaculous.js Line: 26"] It seems that XHTML 1.1 documents sent with the correct application/xhtml+xml cause Firefox not to like document.write(). Fair enough
How can I change the above code to inser the script through DOM? Would that be something like:
How can I dynamically get all files name from a directory?I need to have a directory with pictures, and when I copy new ones, on my website to have them listed inside of a div. If jQuery can't do this, there is otherpossibility
I have, what I think is an easy situation to solve. I am trying to have variables dynamically written to html depending whether a checkbox is ticked.This is what I have right now -
$(document).ready(function(){ if ($("#addon1").is(":checked")){ var a = 10;[code]....
Than I have a div with id of 'total' - When the document loads it does print 0 but when #addon1 is checked it does not change to 10 - But when I refresh it does go to 10.How can I have it update automatically?
I have been struggling with a cross browser solution to loading external javascript files on the fly.
I have been successful using the following code in IE6:
var newScr = document.createElement("SCRIPT"); newScr.src = "newScr.js"; newScr.type="text/javascript"; document.getElementsByTagName("head")[0].appendChild(newScr);
I believe the reason is that IE is loading the external file syncronously while Firefox is not. Is there an onload event for creating an element (if so I do not see it in Venkman). I have seen the solution of using XMLHTTP to load the script but I am trying to get around any dependency (atleast at this stage of the library) on activex.
Here's what I'd like to do using pure JavaScript and HTML (no Ajax or PHP): My website loads different JavaScript files dynamically which contain a bunch of data, that I will display on the website. The dynamical loading function is placed in the <HEAD> and looks like that:
Code: function loadJsFile(filename){ console.log("loading js file") var fileref=document.createElement('script') fileref.setAttribute("type","text/javascript") fileref.setAttribute("src", filename) fileref.onload = dataIsLoaded; if (typeof fileref!="undefined"){ document.getElementsByTagName("head")[0].appendChild(fileref) }}
The dataIsLoaded method in there is a callback that is triggered when the JavaScript file has been loaded: Code: function dataIsLoaded(){ console.log("loading js file done") dataLoaded = true; data = new Data(); }
DataLoaded is simply a global boolean that is per default false and the 'data' variable contains all the data I want to display on my site. While the JavaScript file is being loaded, the browser continues building the site. When it gets to the <body> that wants to access some information from the data variable, I get the unsurprising error that 'data' is undefined. I looked for a way to wait until 'data' is defined and then continue with building the <body> but couldn't find a solution.
Alternatively I wanted to reload the divs in the <body> when the 'data' is available: Code: function reloadDivs(){ if(dataLoaded){ console.log("data available, reloading divs"); document.getElementById('someDiv').innerHTML = document.getElementById('someDiv').innerHTML }else{ console.log("data is not yet available"); setTimeout('loadReportData();', 500); }} This does not work, I get a blank div when I do that.
I'm trying to create a function to load a js file and instance a object.
I'm trying something like this:
Code: function Load(element) { var e = document.createElement("script"); e.type = "text/javascript";
[Code]....
I'm creating the files with the same name as the object. I'm trying to load a file/object name Manager. It's loading the js file, but it says that the object does not exits.
What's the best way to load a js file and create the instance of the object dynamically?
Is it possible to dynamically add an image to a document using document.write? I've been playing around with it and I'm able to add the image tag, but the image is not being displayed. I'm only getting the place holder. The path to the image is correct and it does exist. Is there something special that must be done? I have tried doubling the slashes on the off chance that that was the problem.
I am trying to write a class or function (not sure which is needed) that controls stats on my page. I currently have a working example but I need additional functionality and I'm not sure how to do it. Basically it needs to run every 6 seconds to update the stats(as they change constantly).
I need the javascript to connect(using ajax) to a database and retrieve stats to initially store as global variables. Then, as stated, I need it to modify(simple math that I can do) these stats every 6 seconds.
I came up with some code to load javascript files dynamically. But I've got problems..
When the script element is dynamically added to the head section of html, i think that the document.ready event fires once again and therefore the code sort of runs twice.
In the html page I call this method:
In the script test.js I have the function SayHi():
The SayHi method never gets called and alert('begin') & alert('getScript') get called twice in this sequence:begin begin getScript getScript.
I have a menu div that I have styled so that is always visible on my page. When a user clicks a menu item they are taken to that section of that page using an anchor withing the page but the menu remains visible/constant to the left of the screen
My menu is made up of a number of vertically displayed tab images (set by assigning the background image of a href in css), what I would like to happen is that when a user navigates to an anchor section the background image for that section be changed to a 'current tab' image.
Usually this would be done by setting the class of that menu item to "current" within that page, for example if the menu navigated to a seperate about.html page for the about menu item set:
However on my page different pages (eg about.html) wont be loaded so what I would like to be able to do is dynamically set the 'class="current"' for the href element when a user clicks that link.
I have a template that will have tons of different background options. I want people looking at the demo to be able to test out each one without having to reload the page.
I'm stumped on a jQuery related development task. I'm using jQuery in a SharePoint Web Part...The web part pulls data from a list and displays each item as a link button. When the link button is clicked it uses the jQuery-UI to display the body of the list item in a dialog box. I have this working perfectly when all of the class names are hardcoded. So in this code dialog0 is the class name for the body of the first article. newTitle0 is the linkbutton so they correspond 1:1 (and so on Dialog1, newsTitle1 etc..)
Problem is, when I have more than 1 instance of the web part on a page, because they use the same class names (2nd web part would also use Dialog0, newTitle0), if I click on an item in one web part, the item with the same class name opens in the other web part as well.
I've implemented it so each item now has a unique ID but I don't know where to go from here, so multiple instances of the web part can be on the page, and have the jQuery know which body to display when a link is clicked.
