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  • Html5 - Callback when media is ready on iPad wont work

    - by Kap
    I'm trying to add a callback to a HTML5 audio element on an iPad. I added an eventlistener to the element, the myOtherThing() starts but there is no sound. If I pause and the play the sound again the audio starts. This works in chrome. Does anyone have an idea how I can do this? myAudioElement.src = "path_to_file"; addEventListener("canplay", function(){ myAudioElement.play(); myOtherThing.start(); }); SOLVED Just wanted to share my solution here, just in case someone else needs it. As far as I understand the iPad does not trigger any events without user interactions. So to be able to use "canply", "playing" and all the other events you need to use the built in media controller. Once you press play in that controller, the events gets triggered. After that you can use your custom interface.

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  • How to call c# server side method through javascript

    - by Nimesh
    Hi, I need to call a c# server method through the javascript. I have a gridview in which i have a column with dropdown list. When i change the dropdown's value i need to call a server side method through javascript and change the value of another text box in the gridview. I am able to do this on the selected index change. but i am slightly worried about the performance. i am using asp.net c#. Please let me know how to do this.

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  • Word on HTML document point, using UIWebView, DOM and Javascript

    - by leolobato
    Hey guys, How can I figure out which word is at the point where the user tapped on a UIWebView? I am able to detect the CGPoint for the tap (subclassing UIWindow like this), and I can actually get the DOM element on that point using javascript. But I know very little of javascript and DOM to figure out how can I actually get which word the user tapped on. Is that possible? Here's what I have right now: int scrollPosition = [[webView stringByEvaluatingJavaScriptFromString:@"window.pageYOffset"] intValue]; NSString *js = [NSString stringWithFormat:@"document.elementFromPoint(%f, %f).tagName", point.x, point.y+scrollPosition]; NSString *value = [webView stringByEvaluatingJavaScriptFromString:js]; NSLog(@"element: %@", value);

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  • AJAX Issue, Works in all browsers except IE

    - by Nik
    Alright, this code works in Chrome and FF, but not IE (which is to be expected). Does anyone see anything wrong with this code that would render it useless in IE? var waittime=400; chatmsg = document.getElementById("chatmsg"); room = document.getElementById("roomid").value; sessid = document.getElementById("sessid").value; chatmsg.focus() document.getElementById("chatwindow").innerHTML = "loading..."; document.getElementById("userwindow").innerHTML = "Loading User List..."; var xmlhttp = false; var xmlhttp2 = false; var xmlhttp3 = false; function ajax_read() { if(window.XMLHttpRequest){ xmlhttp=new XMLHttpRequest(); if(xmlhttp.overrideMimeType){ xmlhttp.overrideMimeType('text/xml'); } } else if(window.ActiveXObject){ try{ xmlhttp=new ActiveXObject("Msxml2.XMLHTTP"); } catch(e) { try{ xmlhttp=new ActiveXObject("Microsoft.XMLHTTP"); } catch(e){ } } } if(!xmlhttp) { alert('Giving up :( Cannot create an XMLHTTP instance'); return false; } xmlhttp.onreadystatechange = function() { if (xmlhttp.readyState==4) { document.getElementById("chatwindow").innerHTML = xmlhttp.responseText; setTimeout("ajax_read()", waittime); } } xmlhttp.open('GET','methods.php?method=r&room=' + room +'',true); xmlhttp.send(null); } function user_read() { if(window.XMLHttpRequest){ xmlhttp3=new XMLHttpRequest(); if(xmlhttp3.overrideMimeType){ xmlhttp3.overrideMimeType('text/xml'); } } else if(window.ActiveXObject){ try{ xmlhttp3=new ActiveXObject("Msxml2.XMLHTTP"); } catch(e) { try{ xmlhttp3=new ActiveXObject("Microsoft.XMLHTTP"); } catch(e){ } } } if(!xmlhttp3) { alert('Giving up :( Cannot create an XMLHTTP instance'); return false; } xmlhttp3.onreadystatechange = function() { if (xmlhttp3.readyState==4) { document.getElementById("userwindow").innerHTML = xmlhttp3.responseText; setTimeout("user_read()", 10000); } } xmlhttp3.open('GET','methods.php?method=u&room=' + room +'',true); xmlhttp3.send(null); } function ajax_write(url){ if(window.XMLHttpRequest){ xmlhttp2=new XMLHttpRequest(); if(xmlhttp2.overrideMimeType){ xmlhttp2.overrideMimeType('text/xml'); } } else if(window.ActiveXObject){ try{ xmlhttp2=new ActiveXObject("Msxml2.XMLHTTP"); } catch(e) { try{ xmlhttp2=new ActiveXObject("Microsoft.XMLHTTP"); } catch(e){ } } } if(!xmlhttp2) { alert('Giving up :( Cannot create an XMLHTTP instance'); return false; } xmlhttp2.open('GET',url,true); xmlhttp2.send(null); } function submit_msg(){ nick = document.getElementById("chatnick").value; msg = document.getElementById("chatmsg").value; document.getElementById("chatmsg").value = ""; ajax_write("methods.php?method=w&m=" + msg + "&n=" + nick + "&room=" + room + "&sessid=" + sessid + ""); } function keyup(arg1) { if (arg1 == 13) submit_msg(); } var intUpdate = setTimeout("ajax_read()", waittime); var intUpdate = setTimeout("user_read()", 0);

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  • how to attach window.close to cntrl+w keypress event in a xul window?

    - by Erik Vold
    I have a XUL window, and I want the cntrl+w hotkey to close the window, but when I attach: window.addEventListener("keypress", function(ev) { GM_log("onkeypress handler: \n" + "keyCode property: " + ev.keyCode + "\n" + "which property: " + ev.which + "\n" + "charCode property: " + ev.charCode + "\n" + "Character Key Pressed: " + String.fromCharCode(ev.charCode) + "\n"); }, true); to the page, it treats pressing 'w' and 'cntrl+w' the same, charCode 119.. how can I determine that cntrl+w was pressed so that I may window.close() ?

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  • many-to-many performance concerns with fluent nhibernate.

    - by Ciel
    I have a situation where I have several many-to-many associations. In the upwards of 12 to 15. Reading around I've seen that it's generally believed that many-to-many associations are not 'typical', yet they are the only way I have been able to create the associations appropriate for my case, so I'm not sure how to optimize any further. Here is my basic scenario. class Page { IList<Tag> Tags { get; set; } IList<Modification> Modifications { get; set; } IList<Aspect> Aspects { get; set; } } This is one of my 'core' classes, and coincidentally one of my core tables. Virtually half of the objects in my code can have an IList<Page>, and some of them have IList<T> where T has its own IList<Page>. As you can see, from an object oriented standpoint, this is not really a problem. But from a database standpoint this begins to introduce a lot of junction tables. So far it has worked fine for me, but I am wondering if anyone has any ideas on how I could improve on this structure. I've spent a long time thinking and in order to achieve the appropriate level of association required, I cannot think of any way to improve it. The only thing I have come up with is to make intermediate classes for each object that has an IList<Page>, but that doesn't really do anything that the HasManyToMany does not already do except introduce another class. It does not extend the functionality and, from what I can tell, it does not improve performance. Any thoughts? I am also concerned about Primary Key limits in this scenario. Most everything needs to be able to have these properties, but the Pages cannot be unique to each object, because they are going to be frequently shared and joined between multiple objects. All relationships are one-sided. (That is, a Page has no knowledge of what owns it). Because of this, I also have no Inverse() mapped HasManyToMany collections. Also, I have read the similar question : Usage of ORMs like NHibernate when there are many associations - performance concerns But it really did not answer my concerns.

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  • How can I return a link to an active state after mouseout?

    - by Craig
    var menuEnter = { 'color': hoverColor}; var menuLeave = { 'color': 'C0C0C0'}; new ('div#menu a.level1 span.bg', menuEnter, menuLeave, { transition: Fx.Transitions.linear, duration: 200 }, { transition: Fx.Transitions.sineIn, duration: 500 }); I would like the active menu color to not be affected by the mouseleave var. Thank you.

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  • SQL Server 2005 Performance Dashboard Missing Index

    - by n8wrl
    I am using the performance dashboard with our SQL Server 2005 databases and it lists what it considers to be missing indexes. But some of those indexes DO exist! They are not disabled, and they are defined exactly as the dashboard says they should be. Why are they reported as missing?

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  • Table data display in HTML

    - by Hulk
    In the following table how to adjust the height and width automatically for the table. i.e, if the data is more it should display all the data else present data ina fashionable manner <table="mytable"> <tr><td>more data.............................................................................</td> <td>a</td> </tr> In the nothing should be wrapped wither in case of large chuks of data or small chunks of data. Thanks....

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  • Strange JavaScript Regular Expression Behavior

    - by Kiwi
    I'm getting different behavior from a regular expression in JavaScript depending on whether or not I declare it using literal syntax. Using a extremely simple test HTML file: <html> <head> <script type="text/javascript"> var s = '3'; var regex1 = /\d/; var regex2 = new RegExp('\d'); alert(s.search(regex1)); // 0 (matches) alert(s.search(regex2)); // -1 (does not match) </script> </head> <body></body> </html> The regular expression declared with literal syntax (/\d/) works correctly, while the other (new RegExp('\d')) does not. Why on earth is this happening? I'm using Google Chrome 5.0.375.70 on Windows Vista Home Premium, if that's at all helpful.

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  • Retrieving all objects in code upfront for performance reasons

    - by ming yeow
    How do you folks retrieve all objects in code upfront? I figure you can increase performance if you bundle all the model calls together? This makes for a bigger deal, especially if your DB cannot keep everything in memory def hitDBSeperately { get X users ...code get Y users... code get Z users... code } Versus: def hitDBInSingleCall { get X+Y+Z users code for X code for Y... }

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  • Firefox XUL toolbar with javascript to IE?

    - by user325377
    Hi, I have developed a Firefox toolbar in XUL, which uses javascript to manipulate the DOM. I'd like to export this to IE. I know that IE doesn't support XUL, but wonder: (1) is there an easy way to use the existing javascript code for the IE toolbar as well? (2) is there a IE installer that easily creates all necessary registry values for creating a toolbar? I'd be grateful for any help. If anyone can point me to a sample IE toolbar code, with several buttons, drop-down menus and perhaps even a search box, that'll make things much easier as well. Thanks!

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  • dropdowllist selected item from javascript to servlet

    - by kawtousse
    Hi, I am writing to ask if anybody knows, is it possible to get the value from a JavaScript variable and use this value in a Java Servlet? I have read up on this but all i have found is getting the JavaScript value through a form submit. What I need is: I have a html select combo box. I need to extract the selected value from this and use this value to query a database. Is this possible. Thanks in advance.

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  • Javascript Problem! Not changing the css style

    - by mathew
    I have this code in JavaScript: function change() { document.getElementById("mem").className = 'gif'; } The fig and gif are like this: a.fig { background: #FFFFFF; } a.gif { background: #000099 ; } and the function is used like this <a class ="fig" id ="mem" onClick="javascript:change()" href="users" > Where the only difference between gif and fig in CSS is that they have different background colors. The problem is that the change is only noticeable in just a second and it is not permanent! Any ideas?

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  • Google Maps API and "rightclick" events on Macs

    - by samc
    Using the Google Maps API (v3), I can create a map and handle normal click events just fine, but when I want to handle rightclick events, it doesn't work on Macs. I assume this is because a rightclick on a Mac is actually converted to a ctrl-click, but the Google Maps API MouseEvent doesn't provide information about modifier keys, so I can't check for the ctrl key. I tried adding an "capture" event listener to the document that converts the click event to a rightclick event. function convertClick(e) { if (e.ctrlKey) { e.button = 2; } } document.addEventListener("click", convertClick, true) I added an alert to verify that the condition is correct, but modifying the event in this way didn't work. So, I decided to have my event handler set a global flag that my click handler could check. If the flag is set, it means ctrl was pressed, so the click handler just invokes the rightclick handler. var ctrl; function captureCtrl(e) { ctrl = e.ctrlKey; } This approach worked great, except for one thing. The ctrl flag gets set for the click after the one that occured when ctrl was pressed. That means the event handler is be called during the bubble phase rather than the capture phase. Could explain why the event modification approach didn't work. So, my question is how can you detect "rightclick" events from Macs with the Google Maps API? I can't be the first person to want to do this. That said, when I right-click on the map on http://maps.google.com from a Windows or Linux machine, I get a popup box with options like "Directions from here...", etc. On a Mac, nothing happens. So, not even the main Google Maps page has solved this problem. ...maybe I am the first person to want to do this.

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  • If you delete a DOM element, do any events that started with that element continue to bubble?

    - by Matt
    What behavior should I expect if I delete a DOM element that was used to start an event bubble, or whose child started the event bubble - will it continue to bubble if the element is removed? For example - lets say you have a table, and want to detect click events on the table cells. Another piece of JS has executed an AJAX request that will eventually replace the table, in full, once the request is complete. What happens if I click the table, and immediately after the table gets replaced by a successful completion of an AJAX request? I ask because I am seeing some behavior where the click events don't seem to be bubbling - but it is hard to duplicate. I am watching the event on a parent element of the table (instead of attaching the event to every TD), and it just doesn't seem to reach it sometimes.

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