Search Results

Search found 40441 results on 1618 pages for 'function templates'.

Page 583/1618 | < Previous Page | 579 580 581 582 583 584 585 586 587 588 589 590  | Next Page >

  • jQuery: Traversing AJAX response in Chrome/Safari

    - by jitzo
    I'm trying to traverse an AJAX response, which contains a remote web page (an HTML output). My goal is to iterate through the 'script', 'link', and 'title' elements of the remote page - load them if necessary, and embed its contents to the current page. Its working great in FF/IE, but for some reason - Chrome & Safari behaves differently: When I run a .each() loop on the response, Chrome/Safari seems to omit everything that is under the section of the page. Here's my current code: $.ajax({ url: 'remoteFile.php', cache: false, dataFilter: function(data) { console.log(data); /* The output seems to contain the entire response, including the <head> section - on all browsers, including Chrome/Safari */ $(data).filter("link, script, title").each(function(i) { console.log($(this)); /* IE/FF outputs all of the link/script/title elements, Chrome will output only those that are not in the <head> section */ }); console.log($(data)); /* This also outputs the incomplete structure on Chrome/Safari */ return data; }, success: function(response) {} }); I've been struggling with this problem for quite a while now, i've found some other similar cases on google searches, but no real solution. This happens on both jQuery 1.4.2, and jQuery 1.3.2. I really don't want to parse the response with .indexOf() and .substring() - it seems to me that it will be an overkill for the client. Many thanks in advance!

    Read the article

  • Which of these is pythonic? and Pythonic vs. Speed

    - by Kashyap Nadig
    Hi! I'm new to python and just wrote this module level function: def _interval(patt): """ Converts a string pattern of the form '1y 42d 14h56m' to a timedelta object. y - years (365 days), M - months (30 days), w - weeks, d - days, h - hours, m - minutes, s - seconds""" m = _re.findall(r'([+-]?\d*(?:\.\d+)?)([yMwdhms])', patt) args = {'weeks': 0.0, 'days': 0.0, 'hours': 0.0, 'minutes': 0.0, 'seconds': 0.0} for (n,q) in m: if q=='y': args['days'] += float(n)*365 elif q=='M': args['days'] += float(n)*30 elif q=='w': args['weeks'] += float(n) elif q=='d': args['days'] += float(n) elif q=='h': args['hours'] += float(n) elif q=='m': args['minutes'] += float(n) elif q=='s': args['seconds'] += float(n) return _dt.timedelta(**args) My issue is with the for loop here i.e the long if elif block, and was wondering if there is a more pythonic way of doing it. So I re-wrote the function as: def _interval2(patt): m = _re.findall(r'([+-]?\d*(?:\.\d+)?)([yMwdhms])', patt) args = {'weeks': 0.0, 'days': 0.0, 'hours': 0.0, 'minutes': 0.0, 'seconds': 0.0} argsmap = {'y': ('days', lambda x: float(x)*365), 'M': ('days', lambda x: float(x)*30), 'w': ('weeks', lambda x: float(x)), 'd': ('days', lambda x: float(x)), 'h': ('hours', lambda x: float(x)), 'm': ('minutes', lambda x: float(x)), 's': ('seconds', lambda x: float(x))} for (n,q) in m: args[argsmap[q][0]] += argsmap[q][1](n) return _dt.timedelta(**args) I tested the execution times of both the codes using timeit module and found that the second one took about 5-6 seconds longer (for the default number of repeats). So my question is: 1. Which code is considered more pythonic? 2. Is there still a more pythonic was of writing this function? 3. What about the trade-offs between pythonicity and other aspects (like speed in this case) of programming? p.s. I kinda have an OCD for elegant code. EDITED _interval2 after seeing this answer: argsmap = {'y': ('days', 365), 'M': ('days', 30), 'w': ('weeks', 1), 'd': ('days', 1), 'h': ('hours', 1), 'm': ('minutes', 1), 's': ('seconds', 1)} for (n,q) in m: args[argsmap[q][0]] += float(n)*argsmap[q][1]

    Read the article

  • Show alert on browser close but don't show alert while closing from logoff

    - by Neha Jain
    In my application when user logs out the browser is closed. And on browser close I am throwing an alert. Now what I want is if I directly close the browser window alert should come but if window is closed through logout alert should not come as I have shown another confirm message of logout. function closeEditorWarning(){ for (var i=0;i<childWindow.length;i++) { if (childWindow[i] && !childWindow[i].closed) childWindow[i].close(); if(i==0) { alert("This will close all open e-App applications"); } } window.close(); } window.onbeforeunload = closeEditorWarning; And this is my logout code $('#'+id).click(function(event){ event.preventDefault(); $('#centerContent').load('<%=request.getContextPath()%>/'+target); }); } else { $('#'+id).click(function(event){ event.preventDefault(); var r=confirm("logout"); if (r==true) { flag=true; for (var i=0;i<childWindow.length;i++) { if (childWindow[i] && !childWindow[i].closed) childWindow[i].close(); } window.close(); } else { } }); }

    Read the article

  • error insert text in papervision typography class

    - by safeDomain
    hi evryone , i am encounter with a small problem i want to make a 3d rtl text animation with papervision this code generet a problem to this : [Fault] exception, information=TypeError: Error #1009: Cannot access a property or method of a null object reference. but when using a english text this error dont genereta my code : package { import flash.display.Sprite; import flash.events.Event; import org.papervision3d.scenes.Scene3D import org.papervision3d.view.Viewport3D import org.papervision3d.cameras.Camera3D import org.papervision3d.render.BasicRenderEngine import org.papervision3d.typography.Font3D import org.papervision3d.typography.fonts.HelveticaBold import org.papervision3d.typography.Text3D import org.papervision3d.materials.special.Letter3DMaterial import flash.text.engine.FontDescription import flash.text.engine.ElementFormat import flash.text.engine.TextElement import flash.text.engine.TextBlock import flash.text.engine.TextLine /** * ... * @author vahid */ public class Main extends Sprite { private var fd:FontDescription private var ef:ElementFormat private var te:TextElement protected var st:String; private var scene:Scene3D private var view:Viewport3D private var camera:Camera3D private var render:BasicRenderEngine private var vpWidth:Number = stage.stageWidth; private var vpHeight:Number = stage.stageHeight; private var text3d:Text3D private var font3d:Font3D //private var font:HelveticaBold private var textMaterial:Letter3DMaterial private var text:String public function Main():void { if (stage) init(); else addEventListener(Event.ADDED_TO_STAGE, init); } private function init(e:Event = null):void { removeEventListener(Event.ADDED_TO_STAGE, init); // rtl block fd = new FontDescription () ef = new ElementFormat (fd) te = new TextElement ("?????? ?????? ???? ?????? ?? papervision", ef) text = te.text //3d block scene = new Scene3D () view = new Viewport3D (vpWidth,vpHeight,true,true,false,false) camera = new Camera3D () render = new BasicRenderEngine() addChild (view) this.addEventListener (Event.ENTER_FRAME , renderThis) textMaterial = new Letter3DMaterial(0xFF0000,1) font3d = new HelveticaBold() text3d = new Text3D (text, font3d, textMaterial) scene.addChild (text3d) } protected function renderThis(e:Event):void { text3d.rotationY +=5 render.renderScene(scene,camera,view) } } } i am using flashdevelop. please help me thank's

    Read the article

  • Event Handling for MFC Dialog

    - by Maksud
    This is my second question of the day, pardon me. I am writing a wrapper library to communicate with a scanner device. The source code was in C++ MFC. I am converting it to a plain Dll which will be invoked from C#. So, I am using DllImport in C# to call the wrapper library. Now I am provided with MFC code and the library is a ActiveX Object, at least I think so. class CDpocx : public CWnd { } So in my wrapper library I will have an instance of CDpocx and will call it via C# P/Invoke. But the problem is CDpocx also throws some events which I need to catch. In traditional app, I would just attach an function with it. But How would I attach the events on non MFC class. I have seen something like: BEGIN_EVENTSINK_MAP(CVC60Dlg, CDialog) //{{AFX_EVENTSINK_MAP(CVC60Dlg) ON_EVENT(CVC60Dlg, IDC_DPOCXCTRL1, 1 , OnReadyDpocxctrl1, VTS_NONE) //}}AFX_EVENTSINK_MAP END_EVENTSINK_MAP() OnReadyDpocxctrl1 is the function that handles 1 (Ready) event. How can I gain simmilar function in non MFC class. Regards, Maksud

    Read the article

  • How can I write classes that don't rely on "global" variables?

    - by Joel
    When I took my first programming course in university, we were taught that global variables were evil & should be avoided at all cost (since you can quickly develop confusing and unmaintainable code). The following year, we were taught object oriented programming, and how to create modular code using classes. I find that whenever I work with OOP, I use my classes' private variables as global variables, i.e., they can be (and are) read and modified by any function within the class. This isn't really sitting right with me, as it seems to introduce the same problems global variables had in languages like C. So I guess my question is, how do I stop writing classes with "global" variables? Would it make more sense to pretend I'm writing in a functional language? By this I mean having all functions take parameters & return values instead of directly modifying class variables. If I need to set any fields, I can just take the output of the function and assign it instead of having the function do it directly. This seems like it might make more maintainable code, at least for larger classes. What's common practice? Thanks!

    Read the article

  • How can I detect message boxes popping up in another process?

    - by Frerich Raabe
    I'd like to execute some code whenever a (any!) message box (as spawned by the MessageBox Function) is shown in another process. I didn't start the process I'm monitoring. I can think of three approaches: Install a global CBT Hook procedure which tells me whenever a window is created on the desktop. Then, check whether the window belongs to the process I'm monitoring and whether the class name is #32770 (which is the class name of dialogs according to the About Window Classes page at the MSDN). This would probably work, but it would pull the DLL which contains the hook procedure into virtually every process on the desktop, and the hook procedure gets called a lot. It smells like a potential perfomance problem. Try to subclass the #32770 system window class (is this possible at all?) and look for WM_CREATE messages in my custom window procedure. Intercept the MessageBox Function API call (even though the remote process is running already!) and call my code from the hook function. So far, I only know that the first idea is feasible, but it seems really inefficient. Can anybody think of a simpler solution than that to this problem?

    Read the article

  • x-dom-event-stream in Opera 10 Only Working on First Event

    - by Brad
    I have a python script (in the CherryPy framework) that sends Event: and data: text as this Opera blog post describes to a client browser. The javascript that recieves the x-dom-event-stream content is almost identical to what they show in the blog post. However, the browser displays only the first event sent. Anyone know what I'm missing? I tried a few older versions of Opera and found that it works in Opera 9.52 but not in any newer versions. What did they change? Here is the python code: class dumpData(object): def index(self): cherrypy.response.headers['Content-Type'] = "application/x-dom-event-stream" def yieldData(): i = 0 while 1: yield "Event: count\n" yield "data: " yield i yield "\n\n" i = i + 1 time.sleep(3); return yieldData() index._cp_config = {'response.stream': True} index.exposed = True And here is the javascript/html. Making a request to /data/ runs the python function above. <head> <script> onload = function() { document.getElementById("count").addEventListener("cout", cout, false); } function count(e) { document.getElementById("stream").firstChild.nodeValue = e.data; } </script> <event-source id="count" src="/data/"> </head> <body> <div id="stream"></div> </body> Opening the direct /data/ url in Firefox saves the stream to a file. So I know the output is in the correct format and that the stream works at all.

    Read the article

  • Fck editor problem

    - by Josemalive
    Hi, Im using FCK Editor control instead a textarea element. I installed it without problems. But when i want to validate it with a Custom validator of ASP.Net 2.0, im not getting the result expected. These lines are the code that i have: <textarea style="width:30px;height:20px;" class="ckeditor" id="txtdescription" runat="server" name="txtdescription" cols="5" rows="10"></textarea> <asp:CustomValidator id="descval" runat="server" ControlToValidate="txtdescription" EnableClientScript="true" Enabled="true" ValidateEmptyText="true" Display="Dynamic" ClientValidationFunction="ValidateTextDesc" Text="*" ErrorMessage="*"/> <asp:Button ID="buttonadd" runat="server" Text="Add text" OnClick="buttonadd_Click" /> And my javascript code that executes the CustomValidator client function is: function ValidateTextDesc(source, args) { var descriptiontext = document.getElementById("txtdescription"); if ((descriptiontext.value.indexOf("<script") != -1) || (descriptiontext.value.length==0)) { args.IsValid=false; } else { args.IsValid = true; } return args.IsValid; } My problem is that i have to click twice my submit button to execute this Client function: Do you know why this issue is happening? Thanks in advance. Regards. Josema.

    Read the article

  • hover effect jQuery

    - by Ori Cohen
    I have a bunch of li elements that I want to alternate in color using odds and evens, and then highlight based on mouse hover. In order to un-highlight I need to keep track of what the color used to be, odd or even. To do this when I apply the highlight color, I first set an arbitrary attribute to it. Are there any downsides to doing it this way? Is there a better way? Here's the code: <script type="text/javascript"> var init = function(event){ $("li:odd").css({'background-color' : '#eeeeee', 'font-weight' : 'bold'}); $("li:even").css('background-color', '#cccccc'); //initial colors setup $("li").hover( function () //hover over { var current = $(this); current.attr('old-background', current.css('background-color')); current.css('background-color', '#ffee99'); } , function() //hover out { var current = $(this); current.css('background-color', current.attr('old-background')); }) } $(document).ready(init); </script> So is there a better way to do this?

    Read the article

  • Facebook app submit action type

    - by Axel
    I've been reading about this on StackOverflow and facebook doc, yet I dont seem to be able to submit my action type. I have the following code from the FB doc <script type="text/javascript"> console.log("Function begins"); function postForm() { console.log(FB); FB.api( '/me/concoursvelirium:form', 'post', { recipe: 'http://concours.gestev.com/fbvel2012/form.php' }, function(response) { console.log("Stay"); if (!response || response.error) { console.log("error: " + response); } else { console.log('Cook was successful! Action ID: ' + response.id); } }); } </script> I have added my values from FB autogenerated values: <head prefix="og: http://ogp.me/ns# fb: http://ogp.me/ns/fb# concoursvelirium: http://ogp.me/ns/fb/concoursvelirium#"> <meta property="fb:app_id" content="194081877384051" /> <meta property="og:type" content="concoursvelirium:form" /> <meta property="og:url" content="Put your own URL to the object here" /> <meta property="og:title" content="Sample Form" /> <meta property="og:image" content="https://s-static.ak.fbcdn.net/images/devsite/attachment_blank.png" /> And yet I see no output in the console past the console.log(FB); I have no idea what I'm doing wrong. I'm also getting the Unsafe JavaScript attempt to access frame with URL error, but I have read here that I should just ignore it. Ty, Axel

    Read the article

  • setAttribute, onClick and cross browser compatability...

    - by Nicholas Kreidberg
    I have read a number of posts about this but none with any solid answer. Here is my code: // button creation onew = document.createElement('input'); onew.setAttribute("type", "button"); onew.setAttribute("value", "hosts"); onew.onclick = function(){fnDisplay_Computers("'" + alines[i] + "'"); }; // ie onew.setAttribute("onclick", "fnDisplay_Computers('" + alines[i] + "')"); // mozilla odiv.appendChild(onew); Now, the setAttribute() method (with the mozilla comment) works fine in mozilla but only if it comes AFTER the line above it. So in other words it seems to just default to whichever gets set last. The .onclick method (with the ie comment) does not work in either case, am I using it incorrectly? Either way I can't find a way to make this work at all in IE, let alone in both. I did change the function call when using the .onclick method and it worked fine using just a simple call to an alert function which is why I believe my syntax is incorrect. Long story short, I can't get the onclick parameter to work consistently between IE/Mozilla. -- Nicholas

    Read the article

  • Updating / refreshing a geojson layer

    - by Ozaki
    TLDR My geoJSON layer will display the vector mark but will not destroy the features or re add the features in causing a moving / updating look to the OpenLayers map. Hey S O. I have a geojson layer set up as follows: //GeoJSON Layer// var layer1 = new OpenLayers.Layer.GML("My GeoJSON Layer", "coordinates", {format: OpenLayers.Format.GeoJSON, styleMap: style_red}); My features are set up as follows: var f = new OpenLayers.Feature.Vector(null,style_red); var style_red = OpenLayers.Util.extend({}, layer_style); style_red.strokeColor = "red"; style_red.fillColor = "black"; style_red.fillOpacity = 0.5; style_red.graphicName = "circle"; style_red.pointRadius = 3.8; style_red.strokeWidth = 2; style_red.strokeLinecap = "butt"; and my layer updating function: function UpdateLayer(){ var p = new OpenLayers.Format.GeoJSON({ 'internalProjection': new OpenLayers.Projection("EPSG:900913"), 'externalProjection': new OpenLayers.Projection("EPSG:4326") }); var url = "coordinates.geojson"; OpenLayers.loadURL(url, {}, null, function(r) { var f = p.read(r.responseText); map.layers[1].destroyFeatures(); map.layers[1].addFeatures(f); }); setTimeout("UpdateLayer()",1000) } Any idea what I am doing wrong or what I am missing?

    Read the article

  • Get "term is undefined” error when trying to assign arrayList to List component dataSource

    - by user1814467
    I'm creating an online game where people log in and then have the list of current players displayed. When the user enters a "room" it dispatches an SFSEvent which includes a Room object with the list of users as User objects in that room. As that event's callback function, I get the list of current users which is an Array, switch the View Stack child index, and then I wrap the user list array in an ArrayList before I assign it to the MXML Spark List component's dataSource. Here's my code: My Actionscript Code Section (PreGame.as): private function onRoomJoin(event:SFSEvent):void { const room:Room = this._sfs.getRoomByName(PREGAME_ROOM); this.selectedChild = waitingRoom; /** I know I should be using event listeners * but this is a temporary fix, otherwise * I keep getting null object errors * do to the li_users list not being * created in time for the dataProvider assignment **/ setTimeout(function ():void { const userList:ArrayList = new ArrayList(room.userList); this.li_users.dataProvider = userList; // This is where the error gets thrown },1000); } My MXML Code: <?xml version="1.0" encoding="utf-8"?> <mx:ViewStack xmlns:fx="http://ns.adobe.com/mxml/2009" xmlns:s="library://ns.adobe.com/flex/spark" xmlns:mx="library://ns.adobe.com/flex/mx" initialize="preGame_initializeHandler(event)" > <fx:Script source="PreGame.as"/> <s:NavigatorContent id="nc_loginScreen"> /** Login Screen Code **/ </s:NavigatorContent> /** Start of Waiting Room code **/ <s:NavigatorContent id="waitingRoom"> <s:Panel id="pn_users" width="400" height="400" title="Users"> /** This is the List in question **/ <s:List id="li_users" width="100%" height="100%"/> </s:Panel> </s:NavigatorContent> </mx:ViewStack> However, I keep getting this error: TypeError: Error #1010: A term is undefined and has no properties Any ideas what I'm doing wrong? The arrayList has data, so I know it's not empty/null.

    Read the article

  • How do I get the F1-F12 keys to switch screens in gnu screen in cygwin when connecting via SSH?

    - by Mikey
    I'm connecting to a desktop running cygwin via SSH from the terminal app in Mac OS X. I have already started screen on the cygwin side and can connect to it over the SSH session. Furthermore, I have the following in the .screenrc file: bindkey -k k1 select 1 # F1 = screen 1 bindkey -k k2 select 2 # F2 = screen 2 bindkey -k k3 select 3 # F3 = screen 3 bindkey -k k4 select 4 # F4 = screen 4 bindkey -k k5 select 5 # F5 = screen 5 bindkey -k k6 select 6 # F6 = screen 6 bindkey -k k7 select 7 # F7 = screen 7 bindkey -k k8 select 8 # F8 = screen 8 bindkey -k k9 select 9 # F9 = screen 9 bindkey -k F1 prev # F11 = prev bindkey -k F2 next # F12 = next However, when I start multiple windows in screen and attempt to switch between them via the function keys, all I get is a beep. I have tried various settings for $TERM (e.g. ansi, cygwin, xterm-color, vt100) and they don't really seem to affect anything. I have verified that the terminal app is in fact sending the escape sequence for the function key that I'm expecting and that my bash shell (running inside screen) is receiving it. For example, for F1, it sends the following (hexdump is a perl script I wrote that takes STDIN in binmode and outputs it as a hexadecimal/ascii dump): % hexdump [press F1 and then hit ^D to terminate input] 00000000: 1b4f50 .OP If things were working correctly, I don't think bash should receive the escape sequence because screen should have caught it and turned it into a command. How do I get the function keys to work?

    Read the article

  • Doctrine2 ArrayCollection

    - by boosis
    Ok, I have a User entity as follows <?php class User { /** * @var integer * @Id * @Column(type="integer") * @GeneratedValue */ protected $id; /** * @var \Application\Entity\Url[] * @OneToMany(targetEntity="Url", mappedBy="user", cascade={"persist", "remove"}) */ protected $urls; public function __construct() { $this->urls = new \Doctrine\Common\Collections\ArrayCollection(); } public function addUrl($url) { // This is where I have a problem } } Now, what I want to do is check if the User has already the $url in the $urls ArrayCollection before persisting the $url. Now some of the examples I found says we should do something like if (!$this->getUrls()->contains($url)) { // add url } but this doesn't work as this compares the element values. As the $url doesn't have id value yet, this will always fail and $url will be dublicated. So I'd really appreciate if someone could explain how I can add an element to the ArrayCollection without persisting it and avoiding the duplication? Edit I have managed to achive this via $p = function ($key, $element) use ($url) { if ($element->getUrlHash() == $url->getUrlHash()) { return true; } else { return false; } }; But doesn't this still load all urls and then performs the check? I don't think this is efficient as there might be thousands of urls per user.

    Read the article

  • jQuery Autocomplete Json Ajax cross browser issue with Google Search Appliance

    - by skyfoot
    I am implementing a jquery autocomplete on a search form and am getting the suggestions from the Google Search Appliance Autocomple suggestions service which returns a result set in json. What I am trying to do is go off to the GSA to get suggestions when the user types something in the search box. The url to get the json suggestions is as follows: http://gsaurl/suggest?q=<query>&max=10&site=default_site&client=default_frontend&access=p&format=rich The json which is returned is as follows: { "query":"re", "results": [ {"name":"red", "type":"suggest"}, {"name":"read", "type":"suggest"}] } The jQuery autocomplete code is as follows: $(#q).autocomplete(searchUrl, { width: 320, dataType: 'json', highlight: false, scroll: true, scrollHeight: 300, parse: function(data) { var array = new Array(); for(var i=0;i<data.results.length;i++) { array[i] = { data: data.results[i], value: data.results[i].name, result: data.results[i].name }; } return array; }, formatItem: function(row) { return row.name; } }); This works in IE but fails in firefox as the data returned in the parse function is null. Any ideas why this would be the case? Workaround I created an aspx page to call the GSA suggest service and to return the json from the suggest service. Using this page as a proxy and setting it as the url in the jQuery autocomplete worked in both IE and FireFox.

    Read the article

  • jQGrid is not loading data

    - by user324777
    Hi, I am using jqGrid for my data table solution. Below are the configuration codes. $(function() { $("#submitInput").click(function() { alert("I am called...") jQuery("#list").jqGrid({ datatype: "json", url: "http://localhost:1201/admin/someURL.htm", mtype:"POST", height: "auto", colNames:["Column 1", "Column 2", "Column 3", "Column 4", "Column 5"], colModel:[ {name:"col1", index:"col1", sortable:true, resizable:false}, {name:"col2", index:"col2", sortable:true}, {name:"col3", index:"col3", sortable:false, resizable:false}, {name:"col4", index:"col4", sortable:true, resizable:false}, {name:"col5", index:"col5", sortable:true, resizable:false} ], sortname:'col1', sortorder:'asc', pager: $('#pager'), rowNum:10, viewrecords: true, rowList:[10,20,30], caption: 'Some Grid Values', jsonReader: { root: "responseData", page: "currentPage", total: "totalPages", records: "totalFetchedRecords", repeatitems: true, cell: "rowContent", id: "rowID" }, gridComplete: function() { alert("Loading done..."); } }); }); }); My JSON data is coming in following format: "currentPage":"1","responseData":[ {"rowContent":["Col1_Val_000001","Col2_Val_1","Col3_Val_1","Col4_Val_1","Col5_Val_1"],"rowID":"Col1_Val_000001"}, {"rowContent":["Col1_Val_000002","Col2_Val_2","Col3_Val_2","Col4_Val_2","Col5_Val_2"],"rowID":"Col1_Val_000002"} ], "totalFetchedRecords":"50","totalPages":"5"} In my HTML, there is a button with id "submitInput" and a table with id "list". Somehow, this data is not loaded into the grid. Please provide some help. Thanks, Niranjan

    Read the article

  • call/cc in Lua - Possible?

    - by Pessimist
    The Wikipedia article on Continuation says: "In any language which supports closures, it is possible to write programs in continuation passing style and manually implement call/cc." Either that is true and I need to know how to do it or it is not true and that statement needs to be corrected. If this is true, please show me how to implement call/cc in Lua because I can't see how. I think I'd be able to implement call/cc manually if Lua had the coroutine.clone function as explained here. If closures are not enough to implement call/cc then what else is needed? The text below is optional reading. P.S.: Lua has one-shot continuations with its coroutine table. A coroutine.clone function would allow me to clone it to call it multiple times, thus effectively making call/cc possible (unless I misunderstand call/cc). However that cloning function doesn't exist in Lua. Someone on the Lua IRC channel suggested that I use the Pluto library (it implements serialization) to marshal a coroutine, copy it and then unmarshal it and use it again. While that would probably work, I am more interested in the theoretical implementation of call/cc and in finding what is the actual minimum set of features that a language needs to have in order to allow for its manual implementation.

    Read the article

  • Django Forms - change the render multiple select widget

    - by John
    Hi, In my model I have a manytomany field mentors = models.ManyToManyField(MentorArea, verbose_name='Areas', blank=True) In my form I want to render this as: drop down box with list of all MentorArea objects which has not been associated with the object. Next to that an add button which will call a javascript function which will add it to the object. Then under that a ul list which has each selected MentorArea object with a x next to it which again calls a javascript function which will remove the MentorArea from the object. I know that to change how an field element is rendered you create a custom widget and override the render function and I have done that to create the add button. class AreaWidget(widgets.Select): def render(self, name, value, attrs=None, choices=()): jquery = u''' <input class="button def" type="button" value="Add" id="Add Area" />''' output = super(AreaWidget, self).render(name, value, attrs, choices) return output + mark_safe(jquery) However I don't know how to list the currently selected ones underneath as a list. Can anyone help me? Also what is the best way to filter down the list so that it only shows MentorArea objects which have not been added? I currently have the field as mentors = forms.ModelMultipleChoiceField(queryset=MentorArea.objects.all(), widget = AreaWidget, required=False) but this shows all mentors no matter if they have been added or not. Thanks

    Read the article

  • Daylight Savings Handling in DateDiff() in MS Access?

    - by PowerUser
    I am fully aware of DateDiff()'s inability to handle daylight savings issues. Since I often use it to compare the number of hours or days between 2 datetimes several months apart, I need to write up a solution to handle DST. This is what I came up with, a function that first subtracts 60 minutes from a datetime value if it falls within the date ranges specified in a local table (LU_DST). Thus, the usage would be: datediff("n",Conv_DST_to_Local([date1]),Conv_DST_to_Local([date2])) My question is: Is there a better way to handle this? I'm going to make a wild guess that I'm not the first person with this question. This seems like the kind of thing that should have been added to one of the core reference libraries. Is there a way for me to access my system clock to ask it if DST was in effect at a certain date & time? Function Conv_DST_to_Local(X As Date) As Date Dim rst As DAO.Recordset Set rst = CurrentDb.OpenRecordset("LU_DST") Conv_DST_to_Local = X While rst.EOF = False If X > rst.Fields(0) And X < rst.Fields(1) Then Conv_DST_to_Local = DateAdd("n", -60, X) rst.MoveNext Wend End Function Notes I have visited and imported the BAS file of http://www.cpearson.com/excel/TimeZoneAndDaylightTime.aspx. I spent at least an hour by now reading through it and, while it may do its job well, I can't figure out how to modify it to my needs. But if you have an answer using his data structures, I'll take a look. Timezones are not an issue since this is all local time.

    Read the article

  • boost::binding that which is already bound

    - by PaulH
    I have a Visual Studio 2008 C++ application that does something like this: template< typename Fcn > inline void Bar( Fcn fcn ) // line 84 { fcn(); }; template< typename Fcn > inline void Foo( Fcn fcn ) { // this works fine Bar( fcn ); // this fails to compile boost::bind( Bar, fcn )(); }; void main() { SYSTEM_POWER_STATUS_EX status = { 0 }; Foo( boost::bind( ::GetSystemPowerStatusEx, &status, true ) ); // line 160 } *The call to GetSystemPowerStatusEx() is just for demonstration. Insert your favorite call there and the behavior is the same. When I go to compile this, I get 84 errors. I won't post them all unless asked, but they start with this: 1>.\MyApp.cpp(99) : error C2896: 'boost::_bi::bind_t<_bi::dm_result<MT::* ,A1>::type,boost::_mfi::dm<M,T>,_bi::list_av_1<A1>::type> boost::bind(M T::* ,A1)' : cannot use function template 'void Bar(Fcn)' as a function argument 1> .\MyApp.cpp(84) : see declaration of 'Bar' 1> .\MyApp.cpp(160) : see reference to function template instantiation 'void Foo<boost::_bi::bind_t<R,F,L>>(Fcn)' being compiled 1> with 1> [ 1> R=BOOL, 1> F=BOOL (__cdecl *)(PSYSTEM_POWER_STATUS_EX,BOOL), 1> L=boost::_bi::list2<boost::_bi::value<_SYSTEM_POWER_STATUS_EX *>,boost::_bi::value<bool>>, 1> Fcn=boost::_bi::bind_t<BOOL,BOOL (__cdecl *)(PSYSTEM_POWER_STATUS_EX,BOOL),boost::_bi::list2<boost::_bi::value<_SYSTEM_POWER_STATUS_EX *>,boost::_bi::value<bool>>> 1> ] If anybody can point out what I may be doing wrong, I would appreciate it. Thanks, PaulH

    Read the article

  • jQuery click event on IE7-8, does not execute on the div, only on its text

    - by user3665301
    I have a problem using the jQuery click event with IE7-8-9. I apply the event on a div. But on these two IE versions, I have to click on the text contained within the div to make the event work. I don't understand because it was still normally working on these versions until I made a few changes (like adding the font css properties) but when I try to delete these changes it stil does not work as I want; Here is a jsfiddle illustrating the situation and its full screen result. http://jsfiddle.net/rC632/ function clickEvent(){ $('.answerDiv').click(function(){ $( "div:animated" ).stop(); if ( idPreviousClick === $(this)[0].id) { } else { if (idPreviousClick != -1) { $("#"+idPreviousClick).css({height:'100px', width:'100px', top:'0', 'line-height': '100px'}); $("#"+idPreviousClick).parent().css({height:'100px', width:'100px', top:'0'}); } $(this).animate({height:'120px', width:'120px', 'line-height': '120px'}); $(this).parent().animate({height:'120px', width:'120px', top:'-10px'}); idPreviousClick = $(this)[0].id; } }); } $(document).ready(function(){ clickEvent(); }); var idPreviousClick = -1; http://jsfiddle.net/rC632/embedded/result/ Could you have any idea of what is missing ? Thanks

    Read the article

  • Dynamically manipulate php cookies with javascript/jquery

    - by pundit
    Hi guys, I'm currently building a dynamic menu bar(vertical and horizontal). in the default position its vertical. the user have the option to show the horizontal position and hide and vertical. I am currently doing that with javascript/ jquery. in order to keep the menu bar in the horizontal position i am keeping a count with a cookie. the problem is that when i use the click function in javascript i want to change the value of the cookie. i have no knowledge of how to do this. Can anyone assist me with this. all help would be appreciated. <?php setcookie('menu', 1, time()+(86400)); ?> $(document).ready(function() { $('#temp').hide(); if(<?php echo $_COOKIE['menu'];?> == 1){ $('#topmenu').hide(); $('#sidemenu').floating().dropShadow().floating(); $('#sidemenu_bottom').hide(); }else{ $('#topmenu').show(); $('#topmenu').dropShadow(); $('#sidemenu').hide(); $('#sidemenu').removeShadow(); } $('#move').click(function(){ $('#sidemenu').hide("drop",{},2000); $('#sidemenu').removeShadow(); $('#topmenu').show(); $('#topmenu').dropShadow(); $('#sidemenu_bottom').show(); $('#sidemenu_bottom').floating().dropShadow().floating(); }); }); This is what i have so far and the default cookie is working as well as the javascript. its just to change the cookie value now. thanks.

    Read the article

  • jquery wait till large document is loaded

    - by Martijn
    In my web application I call a document can be huge. This document is loaded into an iframe. I have a title, buttons and the text which all depends on this document. The text is from the large document and is displayed in the iframe. I'd like to show an animated gif while the document is loading on 3 places (1: document title, 2: document buttons, 3: document text, the iframe) I've tried the onload event on the Iframe, but this doesn't give the me the desired effect. Here's my code that loads the document: function loadDocument(id, doc) { $("#DocumentContent").show(); $("#ButtonBox").show(); // Clear dynamic menu items $("#DynamicMenuContent").html(""); $("#PageContent").html(""); // Load document in frame $("#iframeDocument").attr("src", 'ViewDoc.aspx?id=' + id + '&doc=' + doc + ''); // $("#iframeDocument").attr("src", "Graphics/loader.gif"); // Load menu items $.ajax({ url: "ShowButtons.aspx?id=" + id + "&doc=" + doc, success: function(data) { $("#DynamicMenuContent").html(data) }, error: function(xhr, err, e) { alert("error: " + err) } }); // Set document title $("#documentTitle").load("GetDocumentInfo.aspx?p=title"); } My questions, how can I display a loader gif while the document is loaded? And remove the gif when the document is ready?

    Read the article

< Previous Page | 579 580 581 582 583 584 585 586 587 588 589 590  | Next Page >