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  • Perform selector on paren NSOperation

    - by user326943
    I extend NSOperation (call it A) which contains NSOperationQueue for other NSOperations (which is another extended class different from A, call these operations B). When operation A is running (executing B operations) how do i call a specific function/method on operation A when certain event takes place on B operations? For example every operation B that finishes it calls a function on operation A returning itself? *Nested NSOperation and NSOperationQueue(s) Thanks

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  • How to break from loop by the cancel button in inputbox

    - by yael
    The following VB script check the valid IP by Test function if we get OK from the test function then We break from loop ValidIP=OK If not the inputBox ask the question until ValidIP=OK But sometimes I want to exit from loop by cancel button How to break loop by the cancel button (in order to set the ValidIP as OK) Do Until ValidIP=OK IPrange=InputBox("Enter IP address range",,"172.17.202.1-10,192.9.200.1-100") Test IPrange, strPattern Loop

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  • Determine week number based on starting date

    - by kreetiv
    I need help to create a function to determine the week number based on these 2 parameters: Starting date Specified date For example, if I specify April 7, 2010 as the starting date & passed April 20, 2010 as the date to lookup, I would like the function to return WEEK 2. Another example, if I set March 6, 2010 as starting date and looked up April 5, 2010 then it should return WEEK 6. I appreciate your time and help.

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  • JQuery UI: is it possible to know where an object has been dropped?

    - by Jack Duluoz
    Hi, what I want to do is to know where (not in terms of position (x, y), but a reference to the DOM element) an object was dropped. I have a grid made up with divs where you can drop various items and I need to know which div on the grid was the item dropped on (getting its id would be fine). The callback function function(event, ui) { //code here } has just that ui object who doesn't apparently contain any information about this, but only about the draggable item or its helper.

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  • uncheck all checkboxes except the one with a class?

    - by Dejan.S
    hi i try to check/uncheck all checkboxes that don't got a class to them. This is the code I got but it check the class boxes to. $(document).ready(function() { $('#ctl00_ContentPlaceHolder1_repReceivers_ctl00_chxAll').click( function() { if (!$("input[type='checkbox']").hasClass("testclass")) { $("input[type='checkbox']").attr('checked', $('#ctl00_ContentPlaceHolder1_repReceivers_ctl00_chxAll').is(':checked')); }}); }); any ideas where I go wrong?

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  • Get content in iframe to use as much space as it needs

    - by Mark
    I'm trying to write a simple JavaScript based modal dialog. The JavaScript function takes the content, puts it in a new iframe and adds the iframe to the page. Works great so far, the only problem is that the content of the dialog (e.g. a table) gets wrapped, although plenty of space is available on the page. I'd like the content of the dialog, a table in my case, to use as much space as it needs, without wrapping any lines. I tried lots of combinations of setting width/style.width on the iframe and the table. Nothing did the trick. Here the code to show the iframe dialog: function SimpleDialog() { this.domElement = document.createElement('iframe'); this.domElement.setAttribute('style', 'border: 1px solid red; z-index: 201; position: absolute; top: 0px; left: 0px;'); this.showWithContent = function(content) { document.getElementsByTagName('body')[0].appendChild(this.domElement); this.domElement.contentDocument.body.appendChild(content); var contentBody = this.domElement.contentDocument.body; contentBody.style.padding = '0px'; contentBody.style.margin = '0px'; // Set the iframe size to the size of content. // However, content got wrapped already. this.domElement.style.height = content.offsetHeight + 'px'; this.domElement.style.width = content.offsetWidth + 'px'; this._centerOnScreen(); }; this._centerOnScreen = function() { this.domElement.style.left = window.pageXOffset + (window.innerWidth / 2) - (this.domElement.offsetWidth / 2) + 'px'; this.domElement.style.top = window.pageYOffset + (window.innerHeight / 2) - (this.domElement.offsetHeight / 2) + 'px'; }; } Here the test code: var table = document.createElement('table'); table.setAttribute('style', 'border: 1px solid black; width: 100%;'); table.innerHTML = "<tr><td style='font-size:40px;'>Hello world in big letters</td></tr><tr><td>second row</td></tr>"; var dialog = new SimpleDialog(); dialog.showWithContent(table); The table shows up nicely centered on the page, but the words in the first cell are wrapped to two lines. How do I get the table to use as much space as it needs (without using white-space: nowrap ;) Thanks in advance for any suggestions! -Mark

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  • Fastest way to find the largest power of 10 smaller than x

    - by peoro
    Is there any fast way to find the largest power of 10 smaller than a given number? I'm using this algorithm, at the moment, but something inside myself dies anytime I see it: 10**( int( math.log10(x) ) ) # python pow( 10, (int) log10(x) ) // C I could implement simple log10 and pow functions for my problems with one loop each, but still I'm wondering if there is some bit magic for decimal numbers.

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  • textbox required equal false

    - by Donato bruno comunali F. dutra
    how do I make the textbox that required equal to false in this code $(document).ready(function () { $("#<%= chkSpecialIntegration.ClientID %>").click(function () { if (this.checked) { $("#<%= ddlTypeSpecialIntegration.ClientID %>").show(); document.getElementById('<%=txtTotalScoreDebit.ClientID %>').Required = false; } else{ $("#<%= ddlTypeSpecialIntegration.ClientID %>").hide(); document.getElementById('<%=txtTotalScoreDebit.ClientID %>').Required = true; } }); });

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  • Request URL in Javascript, Fetch URL Content using Java Applet, return to Javascript?

    - by Sam G
    I'm in the process of making a little experiment, it grabs a YouTube page, and returns the highest quality MP4 link, then plays this in a HTML 5 Video element. Now I was using PHP with cURL to get the URL content (YouTube), but that only works on my local server (MP4 link is locked to IP address). I can't think of any other way to get the page content due to cross domain rules except a Java applet. So I've built a Java applet that should return the content of a URL. Java import java.applet.Applet; import java.awt.*; import java.io.ByteArrayOutputStream; import java.io.InputStream; import java.net.HttpURLConnection; import java.net.URL; public class URLFetcherabc extends Applet { public void init() { } public void paint(Graphics g) { g.drawString("Java loaded. Waiting for URL", 0, 10); } public String getURL(String url, String httpMethod) { try { URL u = new URL(url); HttpURLConnection conn = (HttpURLConnection)u.openConnection(); conn.setRequestMethod(httpMethod); InputStream is = conn.getInputStream(); ByteArrayOutputStream output = new ByteArrayOutputStream(); byte[] buffer = new byte[1024]; for (int bytesRead = 0; (bytesRead = is.read(buffer)) != -1; ) { output.write(buffer, 0, bytesRead); } return output.toString(); } catch (Exception e) { }return null; } } Now I've got the applet on the page, but every-time I call the function it returns nothing. Heres my HTML for including the applet. HTML <applet id="URLFetcher" name="URLFetcher" code="URLFetcherabc.class" archive="URLFetcher.jar" height="200" width="200" mayscript=""></applet> Java-Script function fetchurl(urltofetch) { var URLFetcher = document.getElementById("URLFetcher"); var result = URLFetcher.getURL(urltofetch); //Result = URL Content return result; } The function always returns null, in Java the function does work when passed a variable via other means (parameter etc). I've tried running other functions through Javascript and the Java applet does respond. I'm new to Java applets and communicating with them via Javascript, so I'm probably making either a small mistake somewhere or its completely wrong. Any ideas? Thanks

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  • Can I write this JQuery statement cleaner?

    - by Polaris878
    Hello, So I have the following: var box = $(".MyCheckBox"); if (box[0].checked) { // Do something } else { // Do something else } Is there a better way of doing this using filters or something? I know I can go: $(".MyCheckBox") .filter(function(index) { return this.checked; }) .each(function() { // do something }); But I need to do something in the else statement... easier way of doing this? Thanks!

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  • â?? in my hmtl after purify

    - by mmcgrail
    I have a database the i am rebuilding the table structure was crap so I'm porting some of the data from one table to another. This data appears to have been copy past from MSO product so as I'm getting the data I clean it up with htmlpurifier and some alittle str_replace in php here the clean function function clean_html($html) { $config = HTMLPurifier_Config::createDefault(); $config->set('AutoFormat','RemoveEmpty',true); $config->set('HTML','AllowedAttributes','href,src'); $config->set('HTML','AllowedElements','p,em,strong,a,ul,li,ol,img'); $purifier = new HTMLPurifier($config); $html = $purifier->purify($html); $html = str_replace('&nbsp;',' ',$html); $html = str_replace("\r",'',$html); $html = str_replace("\n",'',$html); $html = str_replace("\t",'',$html); $html = str_replace(' ',' ',$html); $html = str_replace('<p> </p>','',$html); $html = str_replace(chr(160),' ',$html); return trim($html); } but when I put the results into my new table and out put them to the ckeditor I get those three characters. I then have a javascript function that is called to remove special characters from the content of the ckeditor too. it doesn't clean it either function remove_special(str) { var rExps=[ /[\xC0-\xC2]/g, /[\xE0-\xE2]/g, /[\xC8-\xCA]/g, /[\xE8-\xEB]/g, /[\xCC-\xCE]/g, /[\xEC-\xEE]/g, /[\xD2-\xD4]/g, /[\xF2-\xF4]/g, /[\xD9-\xDB]/g, /[\xF9-\xFB]/g, /\xD1/,/\xF1/g, "/[\u00a0|\u1680|[\u2000-\u2009]|u200a|\u200b|\u2028|\u2029|\u202f|\u205f|\u3000|\xa0]/g", /\u000b/g,'/[\u180e|\u000c]/g', /\u2013/g, /\u2014/g, /\xa9/g,/\xae/g,/\xb7/g,/\u2018/g,/\u2019/g,/\u201c/g,/\u201d/g,/\u2026/g]; var repChar=['A','a','E','e','I','i','O','o','U','u','N','n',' ','\t','','-','--','(c)','(r)','*',"'","'",'"','"','...']; for(var i=0; i<rExps.length; i++) { str=str.replace(rExps[i],repChar[i]); } for (var x = 0; x < str.length; x++) { charcode = str.charCodeAt(x); if ((charcode < 32 || charcode > 126) && charcode !=10 && charcode != 13) { str = str.replace(str.charAt(x), ""); } } return str; } Does anyone know off hand what I need to do to get rid of them. I think they may be some sort of quote

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  • Returning and printing string array index in C

    - by user1781966
    I've got a function that searches through a list of names and I'm trying to get the search function to return the index of the array back to the main function and print out the starting location of the name found. Everything I've tried up to this point either crashes the program or results in strange output. Here is my search function: #include<stdio.h> #include<conio.h> #include<string.h> #define MAX_NAMELENGTH 10 #define MAX_NAMES 5 void initialize(char names[MAX_NAMES][MAX_NAMELENGTH], int Number_entrys, int i); int search(char names[MAX_NAMES][MAX_NAMELENGTH], int Number_entrys); int main() { char names[MAX_NAMES][MAX_NAMELENGTH]; int i, Number_entrys,search_result,x; printf("How many names would you like to enter to the list?\n"); scanf("%d",&Number_entrys); initialize(names,Number_entrys,i); search_result= search(names,Number_entrys); if (search_result==-1){ printf("Found no names.\n"); }else { printf("%s",search_result); } getch(); return 0; } void initialize(char names[MAX_NAMES][MAX_NAMELENGTH],int Number_entrys,int i) { if(Number_entrys>MAX_NAMES){ printf("Please choose a smaller entry\n"); }else{ for (i=0; i<Number_entrys;i++){ scanf("%s",names[i]); } } } int search(char names[MAX_NAMES][MAX_NAMELENGTH],int Number_entrys) { int x; char new_name[MAX_NAMELENGTH]; printf("Now enter a name in which you would like to search the list for\n"); scanf("%s",new_name); for(x = 0; x < Number_entrys; x++) { if ( strcmp( new_name, names[x] ) == 0 ) { return x; } } return -1; } Like I mentioned before I have tried a lot of different ways to try and fix this issue, but I cant seem to get them to work. Printing X like what I have above is just the last thing I tried, and therefor know that it doesn't work. Any suggestions on the simplest way to do this?

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  • C99 variable length automatic array performance

    - by aaa
    Is there significant cpu/memory overhead associated with using automatic arrays with g++/Intel on 64-bit x86 linux platform? int function(int N) { double array[N]; overhead compared to allocating array before hand (assuming function is called multiple times) overhead compared to using new overhead compared to using malloc The range of N may be from 1kb to 16kb roughly, stack overrun is not a problem.

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  • In an array of buttons, how can you tell which button was clicked?

    - by Michael Seltenreich
    If I have an array of buttons, how can I tell which button was clicked? example below var i=0 CreateButton = new function () { savebutton[i]=NewButton() i++ } every time a user runs the function a new button is generated. the first button is savebutton[0] the second is savebutton[1] and so on potentially infinity times. when later the user presses the button I want the screen to alert it's index number (or 'i'). is there any way to make this work in arrays?

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  • A few questions about char pointers.

    - by m4design
    1- How does this work: char *ptr = "hi"; Now the compiler will put this string in the memory (I'm guessing the stack), and create a pointer to it? Is this is how it works? 2- Also if it is created locally in a function, when the function returns will the memory occupied by the string be freed? 3- Last but not least, why is this not allowed: ptr[0] = 'H'; ?

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  • scrollTop in defferent browers.

    - by zjm1126
    shortcut.add("up",function() { alert( document.body.scrollTop) if (document.documentElement&& typeof document.documentElement.scrollTop=='number'){ document.documentElement.scrollTop-=100 } else if (document.body) { document.body.scrollTop-=100 } }) shortcut.add("down",function() { if (document.documentElement&&typeof document.documentElement.scrollTop=='number' ){ document.documentElement.scrollTop+=100 } else if (document.body) { document.body.scrollTop+=100 } }) it can running in firefox,but not in chrome and safari thanks

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  • jQuery: preventdefault does not work

    - by Kent Miller
    I somehow cannot achieve that the a-tag looses its default action when clicking it: <a href="#" class="button dismiss">dismiss</a> $(document).ready(function() { $('.dismiss').click(function(e) { e.preventDefault(); $('#output').empty(); $('#MyUploadForm .button').show(); }); }); When I click the button, the browser window scrolls to the top. What is wrong here?

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  • How to avoid nested functions when using AJAX?

    - by Fletcher Moore
    Sequential Asynchronous calls are gross. Is there a more readable solution? The problem is this is hard to follow: ajaxOne(function() { // do something ajaxTwo(function() { // do something ajaxThree() }); }); where the anonymous functions are callbacks that are called on server response. I'm using a third party API to make the AJAX calls, so I need a generic solution.

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  • how to scan a LAN for live hosts using PHP and SNMP?

    - by aag
    I would like to have a quick script listing all active hosts in a LAN, and I am a bit lost. From other posts I figured that this can be done most effectively by polling the DHCP server (in my case a Lancom router) using SNMP. However, I am not familiar with the SNMP commands in PHP. Is snmpwalk() the correct function? Can I get snmpwalk() or any other php function to return an array that contains a list of all live hosts?

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  • Message passing chrome extension

    - by Mayur Kataria
    I wants to create an extension where content script will send message to background page and then on browser action means clicking on extension icon will access that background page and get some data.I am using chrome Version 23.0.1271.64 m on windows8. I am getting following error. Port error: Could not establish connection. Receiving end does not exist. I tried to solve the same. but people are using sendRequest which is not supported by chrome20+. i also found solution mentioned for chrome 20+. But not working. Please help. Below is the file contents. manifest.json { "name": "Test Extension", "version": "1.0", "manifest_version": 2, "description": "A test extension.", "background": "background.html", "content_scripts": [ { "matches": ["<all_urls>"], "js": ["jquery.js","content.js"] } ], "permissions": ["tabs", "http://*/", "https://*/"], "browser_action": { "default_icon": "icon.png", "default_popup": "popup.html" } } background.html <html> <head> <script src="background.js"></script> </head> <body> <h1>Wy</h1> </body> </html> background.js chrome.extension.onMessage.addListener(function(request, sender, sendResponse) { // Chrome 20+ alert(request); console.log('received in listener'); sendResponse({farewell: "goodbye"}); }); content.js $(function(){ console.log('start-sending message'); chrome.extension.sendMessage({greeting: "hello"},function(response){alert(response);}); console.log('end-sending message'); }); popup.html <!doctype html> <html> <head> <title>Getting Started Extension's Popup</title> </style> <!-- JavaScript and HTML must be in separate files for security. --> <script src="jquery.js"></script> <script src="popup.js"></script> </head> <body> </body> </html> popup.js $(function(){ var str_html = "<tr><td width='60%'>S</td><td width='40%'>15</td></tr><tr><td width='60%'>M</td><td width='40%'>25</td></tr>"; $('#sizes_container').html(str_html); var bkg = chrome.extension.getBackgroundPage(); console.log(bkg); });

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