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  • How come $(this) is undefined after ajax call

    - by JohnnyQ
    I am doing an ajax request when an anchor tag is clicked with an ID set to href. Btw, this anchor tag is dynamically created. <a href="983" class="commentDeleteLink">delete</a> When the anchor tag is clicked the following code is executed: $('.commentDeleteLink').live('click', function(event) { event.preventDefault(); var result = confirm('Proceed?'); if ( result ) { $.ajax({ url: window.config.AJAX_REQUEST, type: "POST", data: { action : 'DELCOMMENT', comment : $('#commentText').val(), comment_id : $(this).attr('href') }, success: function(result) { alert($(this).attr('href')); //$(this).fadeOut(slow); } }); } }); When I tried to display $(this).attr('href') it says it's "undefined". What I really want to do is fadeOut the anchor tag but when I investigated the value of $(this) it is "undefined". What could be wrong with the snippet above?

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  • ASP.NET Controls – CommunityServer Captcha ControlAdapter, a practical case

    - by nmgomes
    The ControlAdapter is available since .NET framework version 2.0 and his main goal is to adapt and customize a control render in order to achieve a specific behavior or layout. This customization is done without changing the base control. A ControlAdapter is commonly used to custom render for specific platforms like Mobile. In this particular case the ControlAdapter was used to add a specific behavior to a Control. In this  post I will use one adapter to add a Captcha to all WeblogPostCommentForm controls within pontonetpt.com CommunityServer instance. The Challenge The ControlAdapter complexity is usually associated with the complexity/structure of is base control. This case is precisely one of those since base control dynamically load his content (controls) thru several ITemplate. Those of you who already played with ITemplate knows that while it is an excellent option for control composition it also brings to the table a big issue: “Controls defined within a template are not available for manipulation until they are instantiated inside another control.” While analyzing the WeblogPostCommentForm control I found that he uses the ITemplate technique to compose it’s layout and unfortunately I also found that the template content vary from theme to theme. This could have been a problem but luckily WeblogPostCommentForm control template content always contains a submit button with a well known ID (at least I can assume that there are a well known set of IDs). Using this submit button as anchor it’s possible to add the Captcha controls in the correct place. Another important finding was that WeblogPostCommentForm control inherits from the WrappedFormBase control which is the base control for all CommunityServer input forms. Knowing this inheritance link the main goal has changed to became the creation of a base ControlAdapter that  could be extended and customized to allow adding Captcha to: post comments form contact form user creation form. And, with this mind set, I decided to used the following ControlAdapter base class signature :public abstract class WrappedFormBaseCaptchaAdapter<T> : ControlAdapter where T : WrappedFormBase { }Great, but there are still many to do … Captcha The Captcha will be assembled with: A dynamically generated image with a set of random numbers A TextBox control where the image number will be inserted A Validator control to validate whether TextBox numbers match the image numbers This is a common Captcha implementation, is not rocket science and don’t bring any additional problem. The main problem, as told before, is to find the correct anchor control to ensure a correct Captcha control injection. The anchor control can vary by: target control  theme Implementation To support this dynamic scenario I choose to use the following implementation:private List<string> _validAnchorIds = null; protected virtual List<string> ValidAnchorIds { get { if (this._validAnchorIds == null) { this._validAnchorIds = new List<string>(); this._validAnchorIds.Add("btnSubmit"); } return this._validAnchorIds; } } private Control GetAnchorControl(T wrapper) { if (this.ValidAnchorIds == null || this.ValidAnchorIds.Count == 0) { throw new ArgumentException("Cannot be null or empty", "validAnchorNames"); } var q = from anchorId in this.ValidAnchorIds let anchorControl = CSControlUtility.Instance().FindControl(wrapper, anchorId) where anchorControl != null select anchorControl; return q.FirstOrDefault(); } I can now, using the ValidAnchorIds property, configure a set of valid anchor control  Ids. The GetAnchorControl method searches for a valid anchor control within the set of valid control Ids. Here, some of you may question why to use a LINQ To Objects expression, but the important here is to notice the usage of CSControlUtility.Instance().FindControl CommunityServer method. I want to build on top of CommunityServer not to reinvent the wheel. Assuming that an anchor control was found, it’s now possible to inject the Captcha at the correct place. This not something new, we do this all the time when creating server controls or adding dynamic controls:protected sealed override void CreateChildControls() { base.CreateChildControls(); if (this.IsCaptchaRequired) { T wrapper = base.Control as T; if (wrapper != null) { Control anchorControl = GetAnchorControl(wrapper); if (anchorControl != null) { Panel phCaptcha = new Panel {CssClass = "CommonFormField", ID = "Captcha"}; int index = anchorControl.Parent.Controls.IndexOf(anchorControl); anchorControl.Parent.Controls.AddAt(index, phCaptcha); CaptchaConfiguration.DefaultProvider.AddCaptchaControls( phCaptcha, GetValidationGroup(wrapper, anchorControl)); } } } } Here you can see a new entity in action: a provider. This is a CaptchaProvider class instance and is only goal is to create the Captcha itself and do everything else is needed to ensure is correct operation.public abstract class CaptchaProvider : ProviderBase { public abstract void AddCaptchaControls(Panel captchaPanel, string validationGroup); } You can create your own specific CaptchaProvider class to use different Captcha strategies including the use of existing Captcha services  like ReCaptcha. Once the generic ControlAdapter was created became extremely easy to created a specific one. Here is the specific ControlAdapter for the WeblogPostCommentForm control:public class WeblogPostCommentFormCaptchaAdapter : WrappedFormBaseCaptchaAdapter<WrappedFormBase> { #region Overriden Methods protected override List<string> ValidAnchorIds { get { List<string> validAnchorNames = base.ValidAnchorIds; validAnchorNames.Add("CommentSubmit"); return validAnchorNames; } } protected override string DefaultValidationGroup { get { return "CreateCommentForm"; } } #endregion Overriden Methods } Configuration This is the magic step. Without changing the original pages and keeping the application original assemblies untouched we are going to add a new behavior to the CommunityServer application. To glue everything together you must follow this steps: Add the following configuration to default.browser file:<?xml version='1.0' encoding='utf-8'?> <browsers> <browser refID="Default"> <controlAdapters> <!-- Adapter for the WeblogPostCommentForm control in order to add the Captcha and prevent SPAM comments --> <adapter controlType="CommunityServer.Blogs.Controls.WeblogPostCommentForm" adapterType="NunoGomes.CommunityServer.Components.WeblogPostCommentFormCaptchaAdapter, NunoGomes.CommunityServer" /> </controlAdapters> </browser> </browsers> Add the following configuration to web.config file:<configuration> <configSections> <!-- New section for Captcha providers configuration --> <section name="communityServer.Captcha" type="NunoGomes.CommunityServer.Captcha.Configuration.CaptchaSection" /> </configSections> <!-- Configuring a simple Captcha provider --> <communityServer.Captcha defaultProvider="simpleCaptcha"> <providers> <add name="simpleCaptcha" type="NunoGomes.CommunityServer.Captcha.Providers.SimpleCaptchaProvider, NunoGomes.CommunityServer" imageUrl="~/captcha.ashx" enabled="true" passPhrase="_YourPassPhrase_" saltValue="_YourSaltValue_" hashAlgorithm="SHA1" passwordIterations="3" keySize="256" initVector="_YourInitVectorWithExactly_16_Bytes_" /> </providers> </communityServer.Captcha> <system.web> <httpHandlers> <!-- The Captcha Image handler used by the simple Captcha provider --> <add verb="GET" path="captcha.ashx" type="NunoGomes.CommunityServer.Captcha.Providers.SimpleCaptchaProviderImageHandler, NunoGomes.CommunityServer" /> </httpHandlers> </system.web> <system.webServer> <handlers accessPolicy="Read, Write, Script, Execute"> <!-- The Captcha Image handler used by the simple Captcha provider --> <add verb="GET" name="captcha" path="captcha.ashx" type="NunoGomes.CommunityServer.Captcha.Providers.SimpleCaptchaProviderImageHandler, NunoGomes.CommunityServer" /> </handlers> </system.webServer> </configuration> Conclusion Building a ControlAdapter can be complex but the reward is his ability to allows us, thru configuration changes, to modify an application render and/or behavior. You can see this ControlAdapter in action here and here (anonymous required). A complete solution is available in “CommunityServer Extensions” Codeplex project.

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  • Styling ASP.NET MVC Error Messages

    - by MightyZot
    Originally posted on: http://geekswithblogs.net/MightyZot/archive/2013/11/11/styling-asp.net-mvc-error-messages.aspxOff the cuff, it may look like you’re stuck with the presentation of your error messages (model errors) in ASP.NET MVC. That’s not the case, though. You actually have quite a number of options with regard to styling those boogers. Like many of the helpers in MVC, the Html.ValidationMessageFor helper has multiple prototypes. One of those prototypes lets you pass a dictionary, or anonymous object, representing attribute values for the resulting markup. @Html.ValidationMessageFor( m => Model.Whatever, null, new { @class = “my-error” }) By passing the htmlAttributes parameter, which is the last parameter in the call to the prototype of Html.ValidationMessageFor shown above, I can style the resulting markup by associating styles to the my-error css class.  When you run your MVC project and view the source, you’ll notice that MVC adds the class field-validation-valid or field-validation-error to a span created by the helper. You could actually just style those classes instead of adding your own…it’s really up to you. Now, what if you wanted to move that error message around? Maybe you want to put that error message in a box or a callout. How do you do that? When I first started using MVC, it didn’t occur to me that the Html.ValidationMessageFor helper just spits out a little bit of markup. I wanted to put the error messages in boxes with white backgrounds, our site originally had a black background, and show a little nib on the side to make them look like callouts or conversation bubbles. Not realizing how much freedom there is in the styling and markup, and after reading someone else’s post, I created my own version of the ValidationMessageFor helper that took out the span and replaced it with divs. I styled the divs to produce the effect of a popup box and had a lot of trouble with sizing and such. That’s a really silly and unnecessary way to solve this problem. If you want to move your error messages around, all you have to do is move the helper. MVC doesn’t appear to care where you put it, which makes total sense when you think about it. Html.ValidationMessageFor is just spitting out a little markup using a little bit of reflection on the name you’re passing it. All you’ve got to do to style it the way you want it is to put it in whatever markup you desire. Take a look at this, for example… <div class=”my-anchor”>@Html.ValidationMessageFor( m => Model.Whatever )</div> @Html.TextBoxFor(m => Model.Whatever) Now, given that bit of HTML, consider the following CSS… <style> .my-anchor { position:relative; } .field-validation-error {    background-color:white;    border-radius:4px;    border: solid 1px #333;    display: block;    position: absolute;    top:0; right:0; left:0;    text-align:right; } </style> The my-anchor class establishes an anchor for the absolutely positioned error message. Now you can move the error message wherever you want it relative to the anchor. Using css3, there are some other tricks. For example, you can use the :not(:empty) selector to select the span and apply styles based upon whether or not the span has text in it. Keep it simple, though. Moving your elements around using absolute positioning may cause you issues on devices with screens smaller than your standard laptop or PC. While looking for something else recently, I saw someone asking how to style the output for Html.ValidationSummary.  Html.ValidationSummery is the helper that will spit out a list of property errors, general model errors, or both. Html.ValidationSummary spits out fairly simple markup as well, so you can use the techniques described above with it also. The resulting markup is a <ul><li></li></ul> unordered list of error messages that carries the class validation-summary-errors In the forum question, the user was asking how to hide the error summary when there are no errors. Their errors were in a red box and they didn’t want to show an empty red box when there aren’t any errors. Obviously, you can use the css3 selectors to apply different styles to the list when it’s empty and when it’s not empty; however, that’s not support in all browsers. Well, it just so happens that the unordered list carries the style validation-summary-valid when the list is empty. While the div rendered by the Html.ValidationSummary helper renders a visible div, containing one invisible listitem, you can always just style the whole div with “display:none” when the validation-summary-valid class is applied and make it visible when the validation-summary-errors class is applied. Or, if you don’t like that solution, which I like quite well, you can also check the model state for errors with something like this… int errors = ViewData.ModelState.Sum(ms => ms.Value.Errors.Count); That’ll give you a count of the errors that have been added to ModelState. You can check that and conditionally include markup in your page if you want to. The choice is yours. Obviously, doing most everything you can with styles increases the flexibility of the presentation of your solution, so I recommend going that route when you can. That picture of the fat guy jumping has nothing to do with the article. That’s just a picture of me on the roof and I thought it was funny. Doesn’t every post need a picture?

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  • Creating packages in code - Workflow

    This is just a quick one prompted by a question on the SSIS Forum, how to programmatically add a precedence constraint (aka workflow) between two tasks. To keep the code simple I’ve actually used two Sequence containers which are often used as anchor points for a constraint. Very often this is when you have task that you wish to conditionally execute based on an expression. If it the first or only task in the package you need somewhere to anchor the constraint too, so you can then set the expression on it and control the flow of execution. Anyway, back to my code sample, here’s a quick screenshot of the finished article: Now for the code, which is actually pretty simple and hopefully the comments should explain exactly what is going on. Package package = new Package(); package.Name = "SequenceWorkflow"; // Add the two sequence containers to provide anchor points for the constraint // If you use tasks, it follows exactly the same pattern, they all derive from Executable Sequence sequence1 = package.Executables.Add("STOCK:Sequence") as Sequence; sequence1.Name = "SEQ Start"; Sequence sequence2 = package.Executables.Add("STOCK:Sequence") as Sequence; sequence2.Name = "SEQ End"; // Add the precedence constraint, here we use the package's constraint collection // as it hosts the two objects we want to constrain (link) // The default constraint is a basic On Success constraint just like in the designer PrecedenceConstraint constraint = package.PrecedenceConstraints.Add(sequence1, sequence2); // Change the settings to use a (dummy) expression only constraint.EvalOp = DTSPrecedenceEvalOp.Expression; constraint.Expression = "1 == 1";   The complete code file is available to download below. SequenceWorkflow.cs

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  • How to disable an ASP.NET linkbutton when clicked

    - by Jeff Widmer
    Scenario: User clicks a LinkButton in your ASP.NET page and you want to disable it immediately using javascript so that the user cannot accidentally click it again.  I wrote about disabling a regular submit button here: How to disable an ASP.NET button when clicked.  But the method described in the other blog post does not work for disabling a LinkButton.  This is because the Post Back Event Reference is called using a snippet of javascript from within the href of the anchor tag: <a id="MyContrl_MyButton" href="javascript:__doPostBack('MyContrl$MyButton','')">My Button</a> If you try to add an onclick event to disable the button, even though the button will become disabled, the href will still be allowed to be clicked multiple times (causing duplicate form submissions).  To get around this, in addition to disabling the button in the onclick javascript, you can set the href to “#” to prevent it from doing anything on the page.  You can add this to the LinkButton from your code behind like this: MyButton.Attributes.Add("onclick", "this.href='#';this.disabled=true;" + Page.ClientScript.GetPostBackEventReference(MyButton, "").ToString()); This code adds javascript to set the href to “#” and then disable the button in the onclick event of the LinkButton by appending to the Attributes collection of the ASP.NET LinkButton control.  Then the Post Back Event Reference for the button is called right after disabling the button.  Make sure you add the Post Back Event Reference to the onclick because now that you are changing the anchor href, the button still needs to perform the original postback. With the code above now the button onclick event will look something like this: onclick="this.href='#';this.disabled=true;__doPostBack('MyContrl$MyButton','');" The anchor href is set to “#”, the linkbutton is disabled, AND then the button post back method is called. Technorati Tags: ASP.NET LinkButton

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  • Cocos2d/Cocos2d-x Attaching an arrow (sprite) to another body sprite (person)

    - by Satchmo Brown
    I am trying to set up a simple bow and arrow game. When the arrow hits the enemy body, the arrow's body is deleted and the arrow sprite continues to update, keeping the position correct in relation to the enemy it hit. Picture an arrow sticking into a body and that body still rotating and moving. My problem is that the rotation is completely wrong when the enemy rotates. I know how to do this in 3d with matrix transformation but I can't seem to figure it out in 2d with Cocos. Here is my method. I save offset at which the arrow hit the enemy. Every frame, I make the rotation of the sprite match the rotation of the enemy. Then, I apply the offset I took initially which is where the arrow hit the enemy. When they rotate, they rotate about their respective anchors and I am wondering if I need to set the anchor of the arrow to the center of the sprite. Does anyone know of an easy way to do this. If not, I will try to create an algorithm where the anchor is set to the offset divided by the width and height of the sprite image hopefully giving me the correct anchor values. Then I assume I need to reposition the sprite. Does anyone have a simpler way to do this?

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  • Does purposely linking to an invalid URL and then using 301 affect SEO?

    - by Mike
    On a section of my site, I am currently using .htaccess rewrites to put the ID as part of the URL instead of in the query, like so: RewriteRule ^([a-z_]+)?/?tours/([0-9]+)/(.*) /tours/tour_text.php?lang=$1&id=$2&urlstr=$3 [L] For example, if someone goes to /en/tours/12/some-text-here it will rewrite it to /tours/tour_text.php?lang=en&id=12&urlstr=some-text-here. However I don't want the users to be able to put just any text, so if they type in the wrong some-text-here part it will 301 redirect them to the right page. This works perfectly, but I can see a potential problem potential arising when localizing the website, so I just wanted to make sure it's not actually a problem. How it is now, if someone goes to /en/tours/12/some-text-here, the anchor to the Spanish version of that page will be /es/tours/12/some-text-here (i.e. only changing the "en" to "es"), and then the script will then 301 them to the correct Spanish text (something like /es/tours/12/algun-texto-aqui). And the reverse will also be the same. The anchor on the Spanish version to the English version would be /en/tours/12/algun-texto-aqui and then they will be forwarded with 301 back to /en/tours/12/some-text-here. Basically, the anchor changes the language and the 301 changes the string at the end. So I have two questions: Does purposely and permanently having invalid URLs on your site that get 301'ed to the correct ones have any effect on SEO? I could make it just show the correct URL to begin with, but this is a significant amount of work due to how I am handling the translations, so I would prefer just to 301 them. Will the invalid URLs that are contained in the links be added to the search engine indexes even if they get 301'ed to another page?

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  • HTML Purifier: Removing an element conditionally based on its attributes

    - by pinkgothic
    As per the HTML Purifier smoketest, 'malformed' URIs are occasionally discarded to leave behind an attribute-less anchor tag, e.g. <a href="javascript:document.location='http://www.google.com/'">XSS</a> becomes <a>XSS</a> ...as well as occasionally being stripped down to the protocol, e.g. <a href="http://1113982867/">XSS</a> becomes <a href="http:/">XSS</a> While that's unproblematic, per se, it's a bit ugly. Instead of trying to strip these out with regular expressions, I was hoping to use HTML Purifier's own library capabilities / injectors / plug-ins / whathaveyou. Point of reference: Handling attributes Conditionally removing an attribute in HTMLPurifier is easy. Here the library offers the class HTMLPurifier_AttrTransform with the method confiscateAttr(). While I don't personally use the functionality of confiscateAttr(), I do use an HTMLPurifier_AttrTransform as per this thread to add target="_blank" to all anchors. // more configuration stuff up here $htmlDef = $htmlPurifierConfiguration->getHTMLDefinition(true); $anchor = $htmlDef->addBlankElement('a'); $anchor->attr_transform_post[] = new HTMLPurifier_AttrTransform_Target(); // purify down here HTMLPurifier_AttrTransform_Target is a very simple class, of course. class HTMLPurifier_AttrTransform_Target extends HTMLPurifier_AttrTransform { public function transform($attr, $config, $context) { // I could call $this->confiscateAttr() here to throw away an // undesired attribute $attr['target'] = '_blank'; return $attr; } } That part works like a charm, naturally. Handling elements Perhaps I'm not squinting hard enough at HTMLPurifier_TagTransform, or am looking in the wrong place(s), or generally amn't understanding it, but I can't seem to figure out a way to conditionally remove elements. Say, something to the effect of: // more configuration stuff up here $htmlDef = $htmlPurifierConfiguration->getHTMLDefinition(true); $anchor = $htmlDef->addElementHandler('a'); $anchor->elem_transform_post[] = new HTMLPurifier_ElementTransform_Cull(); // add target as per 'point of reference' here // purify down here With the Cull class extending something that has a confiscateElement() ability, or comparable, wherein I could check for a missing href attribute or a href attribute with the content http:/. HTMLPurifier_Filter I understand I could create a filter, but the examples (Youtube.php and ExtractStyleBlocks.php) suggest I'd be using regular expressions in that, which I'd really rather avoid, if it is at all possible. I'm hoping for an onboard or quasi-onboard solution that makes use of HTML Purifier's excellent parsing capabilities. Returning null in a child-class of HTMLPurifier_AttrTransform unfortunately doesn't cut it. Anyone have any smart ideas, or am I stuck with regexes? :)

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  • Using a Scala symbol literal results in NoSuchMethod

    - by Benson
    I have recently begun using Scala. I've written a DSL in it which can be used to describe a processing pipeline in medici. In my DSL, I've made use of symbols to signify an anchor, which can be used to put a fork (or a tee, if you prefer) in the pipeline. Here's a small sample program that runs correctly: object Test extends PipelineBuilder { connector("TCP") / Map("tcpProtocol" -> new DirectProtocol()) "tcp://localhost:4858" --> "ByteToStringProcessor" --> Symbol("hello") "stdio://in?promptMessage=enter name:%20" --> Symbol("hello") Symbol("hello") --> "SayHello" / Map("prefix" -> "\n\t") --> "stdio://out" } For some reason, when I use a symbol literal in my program, I get a NoSuchMethod exception at runtime: java.lang.NoSuchMethodError: scala.Symbol.intern()Lscala/Symbol; at gov.pnnl.mif.scaladsl.Test$.<init>(Test.scala:7) at gov.pnnl.mif.scaladsl.Test$.<clinit>(Test.scala) at gov.pnnl.mif.scaladsl.Test.main(Test.scala) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at scala.tools.nsc.ObjectRunner$$anonfun$run$1.apply(ObjectRunner.scala:75) at scala.tools.nsc.ObjectRunner$.withContextClassLoader(ObjectRunner.scala:49) at scala.tools.nsc.ObjectRunner$.run(ObjectRunner.scala:74) at scala.tools.nsc.MainGenericRunner$.main(MainGenericRunner.scala:154) at scala.tools.nsc.MainGenericRunner.main(MainGenericRunner.scala) This happens regardless of how the symbol is used. Specifically, I've tried using the symbol in the pipeline, and in a simple println('foo) statement. The question: What could possibly cause a symbol literal's mere existence to cause a NoSuchMethodError? In my DSL I am using an implicit function which converts symbols to instances of the Anchor class, like so: implicit def makeAnchor(a: Symbol):Anchor = anchor(a) Sadly, my understanding of Scala is weak enough that I can't think of why that might be causing my NoSuchMethodError.

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  • URL "fragment identifier" semantics for HTML documents

    - by Pointy
    I've been working with a new installation of the "MoinMoin" wiki software. As I was playing with it, typing in mostly random test pages, I created a link with a fragment blah blah see also [[SomeStuff#whatever|some other stuff about whatever]] Then I needed to figure out how to create the anchor for that "whatever" fragment identifier. I don't recall having to do that with MediaWiki, so I had to dig around, but finally I found that MoinMoin has an "Anchor" macro: == Whatever == <<Anchor(whatever)>> Looking at the generated HTML, I was surprised to see an empty <span> tag with an "id" value of "whatever". I expected that it'd be an <a> tag with a "name" attribute of "whatever". I dug around and found the source, and there's a comment that says they changed it from an <a> tag in order to avoid some IE problem with <pre> sections. This confused me — not because of the IE thing, but because it looked to me as if their "fix" had left the whole anchor mechanism completely broken. Much to my surprise, however, further testing indicated that it worked fine. I wrote a test page with 300 <span> tags all with "id" values, and I further shocked myself when Firefox behaved exactly as I would have expected it to had I used <a> tags. It also worked when I changed all the <span> tags to <em>. So by this time, you're either as surprised as I was, or else you're thinking "how can somebody that dumb have so many reputation points?" If you're in the second category, is it really the case that I've been typing in HTML for about 15 years now — a lot of HTML — and it's somehow escaped my notice that browsers use the HTML fragment to find any sort of element with a matching "id"? mind status: blown

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  • UIWebView selection

    - by Infinity
    Hello guys! I subclassed the UIWindow to get the clicks from UIWebView. I used a tutorial for this. Here is the link: Tutorial It is working, but after I've got and other tutorial from the writer where he shows how to highlight the text in UIWebView. Here's the second link. But I can't use this second one. I tried to run this code in the - (void)userDidTapWebView:(id)tapPoint; delegate method. This delegate method is called when I tap in the UIWebView. Maybe somebody can help me to correct the script? I would like to get the tapped anchor's link. I tried many different java script, but until now I couldn't get the tapped anchor's link. One of the tries is when I tried to add a function to document.onClick. But I tap an anchor then it needs a second tap to get the anchor and I can't get the link neither with this method.

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  • Hide anchors using jQuery

    - by Eric Di Bari
    I've created a dynamic page that, depending on the view type, will sometimes utilize the anchor tags and other times not. Essentially, I want to be able to control if on click the page jumps to the anchor. Is it possible to hide anchor tags using jQUery, so they are essentially removed? I need to be able to re-enable the anchors when necessary, and always show the current anchor in the browser's address bar. It seems to work in FireFox, but not in Internet Explorer. I have three sections: the 'table of contents', the content, and the javascript (jQuery) code Table of Contents <a id="expandLink0" class="expandLinksList" href="#green">What is green purchasing</a><br> <a id="expandLink1" class="expandLinksList" href="#before">Before you buy</a><br> Contents <ul id="makeIntoSlideshowUL">' <li id="slideNumber0" class="slideShowSlide"> <a name="green"></a> <div>Green Purchasing refers to the procurement of products and service...<a href="#topOfPageAnchor" class="topOfPageAnchorClass">Back to Top</a></div> </li> <li id="slideNumber1" class="slideShowSlide"> <a name="before"></a> <div>We easily accomplish the first four bullet points under...<a href="#topOfPageAnchor" class="topOfPageAnchorClass">Back to Top</a></div> </li> </ul> jQuery On Page Load $(".slideShowSlide").each(function() { $(this).children(":first-child").hide(); }); jQuery to re-enable links $(".slideShowSlide").each(function() { $(this).children(":first-child").show(); });

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  • replace a random word of a string with a random replacement

    - by tpickett
    I am developing a script that takes an article, searches the article for a "keyword" and then randomly replaces that keyword with an anchor link. I have the script working as it should, however I need to be able to have an array of "replacements" for the function to loop through and insert at the random location. So the first random position would get anchor link #1. The second random position would get anchor link #2. The third random position would get anchor link #3. etc... I found half of the answer to my question here: PHP replace a random word of a string public function replace_random ($str, $search, $replace, $n) { // Get all occurences of $search and their offsets within the string $count = preg_match_all('/\b'.preg_quote($search, '/').'\b/', $str, $matches, PREG_OFFSET_CAPTURE); // Get string length information so we can account for replacement strings that are of a different length to the search string $searchLen = strlen($search); $diff = strlen($replace) - $searchLen; $offset = 0; // Loop $n random matches and replace them, if $n < 1 || $n > $count, replace all matches $toReplace = ($n < 1 || $n > $count) ? array_keys($matches[0]) : (array) array_rand($matches[0], $n); foreach ($toReplace as $match) { $str = substr($str, 0, $matches[0][$match][1] + $offset).$replace.substr($str, $matches[0][$match][1] + $searchLen + $offset); $offset += $diff; } return $str; } So my question is, How can i alter this function to accept an array for the $replace variable?

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  • Problem with LINQ to XML and Namespaces

    - by abtcabe
    I am having problems with working with a third party XML string that contains a Namespace with LINQ to XML. In the below code everything works find. I am able to select the xElement (xEl1) and update its value. 'Example Without Namespace Dim XmlWithOutNs = _ <?xml version="1.0"?> <RATABASECALC> <RATEREQUEST> <ANCHOR> <DATABASENAME>DatabaseName</DATABASENAME> <DATABASEPW>DatabasePw</DATABASEPW> </ANCHOR> </RATEREQUEST> </RATABASECALC> Dim xEl1 = XmlWithOutNs...<DATABASEPW>.FirstOrDefault If xEl1 IsNot Nothing Then xEl1.Value = "test" End If However, in the below code the xElement (xEl2) returns Nothing. The only difference is the Namespace (xmlns="http://www.cgi.com/Ratabase) 'Example With Namespace Dim XmlWithNs = _ <?xml version="1.0"?> <RATABASECALC xmlns="http://www.cgi.com/Ratabase"> <RATEREQUEST> <ANCHOR> <DATABASENAME>DatabaseName</DATABASENAME> <DATABASEPW>DatabasePw</DATABASEPW> </ANCHOR> </RATEREQUEST> </RATABASECALC> Dim xEl2 = XmlWithNs...<DATABASEPW>.FirstOrDefault If xEl2 IsNot Nothing Then xEl2.Value = "test" End If So my questions are: 1. Why is this happening? 2. How do I resolve this issue?

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  • Tkinter, Python: How do I save text entered in the Entry widget? How do I move a label?

    - by user3692825
    I am a newbie at programming and my program is not stellar but hopefully it's ok because I have only been using it for a couple days now. I am having trouble in my class "Recipie". In this class I am having trouble saving the text in my Entry widget. I know to use the .get() option but when I try to print it, it doesn't (whether it is within that defined method or not). So that is my main concern. I want it to save the text entered as a string when I press the button: b. My other minor question is, how can I move the label. When I have tried I have used the height and width options, but that just expands the label. I want to move the text to create a title above my Entry boxes. Is label the right widget to use or would it be easier to use a message box widget? So it would look like, for example (but like 8 pixels down and 20 to the right): ingredients textbox button labeled as: add an ingredient And I am not sure the option .pack(side="...") or .place(anchor="...") are the right options to use for my buttons or entry boxes or labels. Any help is greatly appreciated!!! And if you could add comments to your code explaining what you did, that would be so helpful. Thank you!!! import Tkinter class Recipie(Tkinter.Tk): def __init__(self): Tkinter.Tk.__init__(self) self.title("New Recipie") self.geometry("500x500") def name(self): name = Tkinter.Label(self, text="Title:", width=39) name.place(anchor="nw") insert_name = Tkinter.Entry(self) insert_name.pack() insert_name.focus_set() def ingredients(self): e = Tkinter.Entry(self) e.pack() e.focus_set() def addingredient(self): but = Tkinter.Button(self, text="Add Ingredients", width=15, command=self.ingredients) but.pack(side="bottom") def procedure(self): txt = Tkinter.Label(self, text="List the Steps:") txt.place(anchor="n") p = Tkinter.Entry(self) p.place(anchor="nw") p.focus_set() def savebutton(self): print insert_name.get() print e.get() print p.get() b = Tkinter.Button(self, text="Save Recipie", width=15, command=savebutton) top = Recipie() top.mainloop()

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  • Show/Hide divs with same class - jquery

    - by phil
    Hello, I have 1 div that will contain 3-5 divs with the same class. Below the div is an anchor. I would like for when this anchor is clicked it will hide the first div and then show the second. Another click would show the next and so on. I have set display:none on all divs but the first so only one is currently showing. I just can't figure out how to hide the first and then show the second, then third, then next when clicking the anchor. <div class="container-div"> <div class="inner-div">...</div> <div class="inner-div" style="display:none;">...</div> <div class="inner-div" style="display:none;">...</div> <a href="#" class="more">More</a> </div> So when the more anchor is clicked it would show one inner-div one at a time. Any suggestions or ideas would be greatly appreciated. Also, I would like to use jquery to accomplish this.

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  • Set form field values in ExtJS

    - by jeremib
    I'm using ExtJS to create a formPanel: new Ext.FormPanel({ labelAlign: 'top', title: 'Loading Contact...', bodyStyle:'padding:5px', width: 600, autoScroll: true, closable: true, items: [{ layout:'column', border:false, items:[{ columnWidth:.5, layout: 'form', border:false, items: [{ xtype:'textfield', fieldLabel: 'First Name', name: 'first_name', id: 'first_name', anchor:'95%' }, { xtype:'datefield', fieldLabel: 'Birthdate', name: 'birthdate', width: 150, }] },{ columnWidth:.5, layout: 'form', border:false, items: [{ xtype:'textfield', fieldLabel: 'Last Name', name: 'last_name', anchor:'95%' },{ xtype:'textfield', fieldLabel: 'Email', name: 'email', vtype:'email', anchor:'95%' }] }] },{ xtype:'tabpanel', plain:true, activeTab: 0, height:300, /* * By turning off deferred rendering we are guaranteeing that the * form fields within tabs that are not activated will still be * rendered. This is often important when creating multi-tabbed * forms. */ deferredRender: false, defaults:{bodyStyle:'padding:10px'}, items:[{ title:'Address', layout:'form', defaults: {width: 230}, defaultType: 'textfield', items: [{ fieldLabel: 'Line1', name: 'line1', allowBlank:false, },{ fieldLabel: 'Line2', name: 'line2', },{ fieldLabel: 'City', name: 'city', allowBlank: false, },{ xtype:"combo", fieldLabel:"State", name:"state", hiddenName:"combovalue" }, { fieldLabel: 'Zipcode', name: 'zipcode', allowBlank: false, }] },{ title:'Phone Numbers', layout:'form', defaults: {width: 230}, defaultType: 'textfield', items: [{ fieldLabel: 'Home', name: 'home_phone', },{ fieldLabel: 'Cell', name: 'cell_phone' },{ fieldLabel: 'Emergency', name: 'emergency_phone' }] },{ cls:'x-plain', title:'Notes', layout:'fit', items: { xtype:'htmleditor', name:'notes', fieldLabel:'Notes' } }] }], buttons: [{ text: 'Save' },{ text: 'Cancel' }] }) How do I access the form fields by the name to set their value manually? Thanks

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  • Can dummy objects be simulated on iphone?

    - by Mike
    I come from 3D animation and one of the basic things all 3D software have is the ability to create dummy objects. Dummy objects can be used to groups objects that can be rotated, moved or scaled together around a specific anchor point. This is the idea of what I am asking. Obviously we can have fake dummies by using a view and put other views as subviews, but this has problems as the view receives clicks and sometimes you don't want it to do so. You cannot change the anchorpoint of a view too. So, the dummies as I ask have, at least, these properties: adjustable anchor point it is not clickable it is totally invisible (cannot be rendered). any scale, rotation and translation of a dummy are propagated to the grouped objects considering the dummy's anchor point. it is totally animatable. Can this be simulated on iPhone? Is there any object that can be created to simulate this? thanks.

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  • JavaScript check field value based on variable value

    - by Nikita Sumeiko
    I have an anchor like this: <a href="#" rel="1 4 7 18 ">Anchor</a> Where 'rel' attribute values are ids of some items. Than I have a form with an input, where user should type an id and click submit button. On submit button click I need to check the value of input like this: var value = $('a').attr('rel'); if ( value == '1' || value == '4' || value == '7' || value == '18') { // however I need the line above are created dynamically based on 'value' var alert('The id exists'); return false; } else { return true; } So, the question is how to create a line below dynamically based on anchor 'rel' attribute values?! This is the line: if ( value == '1' || value == '4' || value == '7' || value == '18') {

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  • internet explorer 7 iframe unloads when going back

    - by André
    Hi this is my first post here, so please be kind ;-) i'm implementing a browser history manager, just like rsh or yui browser history manager. The idea was not to constantly poll the url hash of a hidden iframe, but to capture the onscroll event of an iframe, when it scrolls to an anchor name on an urlhashchange. So on every click i add an new anchor to iframe and set the iframe's hash to the anchors name. When pressing the back or forward button the frame scrolls to the previous or next anchor and the onscroll event is fired. That works great on firefox 3.0+, IE6 and Opera but on IE7 when hiting the back button the frame unloads and loses all its anchors. If anyone has an idea why this is happening or even a fix for this "bug", please i'm slowly going insane over this. thanks in advance btw the onscroll idea comes from: http://www.zachleat.com/web/2008/08/21/onhashchange-without-setinterval/

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  • Changing the HTML of CKEditor form elements (in the dialog window)

    - by Kenny Meyers
    I'm trying to modify the HTML of the dialog boxes in CKEditor. The HTML inside each of those boxes is an absolute nightmare, and even worse, the source code is compressed and it's unclear what the path of execution is. I want to take something like this: <div class="cke_dialog_ui_select" id="44_uiElement" role="presentation"><label style="" for="42_select" id="43_label" class="cke_dialog_ui_labeled_label">Link Type</label><div role="presentation" class="cke_dialog_ui_labeled_content"><select aria-labelledby="43_label" class="cke_dialog_ui_input_select" id="42_select"><option value="url"> URL</option><option value="anchor"> Link to anchor in the text</option><option value="email"> E-mail</option></select></div></div> and turn it into something more legible and easier to style, removing one of the divs. These are for the Image and Anchor dialog boxes (Modal dialogues) respectively. Thanks for your help.

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  • Validation errors from Google App Engine Logout link

    - by goggin13
    I am making a web page using the Google App Engine. I am validating my pages, and found that the logout link that is generated by the call to the users api (in python) users.create_logout_url(request.uri) does not validate as XHTML 1.0 Strict. The href in the anchor tag looks like this: /_ah/login?continue=http%3A//localhost%3A8080/&action=Logout Including a link with this anchor text throws three different validation errors: *general entity "action" not defined and no default entity *reference to entity "action" for which no system identifier could be generated *EntityRef: expecting ';' Here is a dummy page with the anchor tag in it, if you want to try it on w3c validator.Dummy Page. The logout link wont work, but you can see how the page is valid without it, but the actual text inside the href tag breaks the validation. Any thoughts on whats going on? Thank you!

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  • jQuery index selector

    - by yoda
    Hi, I'm trying to find out a way to know the index of a anchor tag inside a certain div (one div has multiple similar anchor tags), like this : <div> <a>first</a> <a>second</a> <a>third</a> </div> I'm using jQuery, but so far found no sollution to find the index of the anchor I have the mouse currently over. Any ideas? Cheers!

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