that?s hold the calendar and is fixed in height and width and so on, its scrollable in height, if more entrys are in the div as the height is. Now, when I scroll it to the bottom, because I have a lot of entrys in it, which entrys are tablerows (td?s) with a onclick function on it, and click the last item or items that are not shown on default (in relation to the height of the div) it will every time click on the default visible (in relation to the height of the div) td?s. But this behavior is only on XOOM, on Google Chrome it works like it should ? I have no clue, what I make wrong or is it a bug? Do I forget something? Is this a well known problem? Thanks for your help? Cheers Reto P.S Here an example?

AGENDA

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-------------- next part -------------- An HTML attachment was scrubbed... URL: From julien.chaffraix at gmail.com Sun Oct 2 11:44:38 2011 From: julien.chaffraix at gmail.com (Julien Chaffraix) Date: Sun, 2 Oct 2011 11:44:38 -0700 Subject: [webkit-help] error of building webkit with directfb In-Reply-To: <1a85427.763.132bd4ca592.Coremail.wenmhappy@126.com> References: <1a85427.763.132bd4ca592.Coremail.wenmhappy@126.com> Message-ID: > ?? I have successfully built (cross-compile) webkit-r59711 with --gtk (x11 > default) on embed platform.? But now there are errors when i build it with > --gtk --with-target=directfb.? In that case, webkit will depends on > libgdk-x11-2.0.so and libgdk-directfb-2.0.so, they depend respectively on > libcairo( with xlib) and libcairo( with directfb). If you don't disable plugins (NPAPI) then WebKit has a dependency on X on Linux. Have you tried compiling with --no-netscape-plugin? (I am assuming that you are using build-webkit here if not you will need to find the equivalent switch) Hope it helps, Julien From yamazaki at fusenetwork.co.jp Mon Oct 3 02:43:10 2011 From: yamazaki at fusenetwork.co.jp (Kunio Yamazaki) Date: Mon, 03 Oct 2011 18:43:10 +0900 Subject: [webkit-help] I need help in building webkit wincairo Message-ID: <4E8983AE.6070605@fusenetwork.co.jp> Hi Everyone, I am trying to build the wincairo version with the source of webkit r96399. Development environment is [ Window + cygwin + vs2005 ES(Sp1) ] However, the error same as a release and debug build was outputted. WKCACFViewWindow.obj : error LNK2001: external symbol "__imp__WKCACFViewUpdate" is unresolved. WKCACFViewWindow.obj : error LNK2001: external symbol "__imp__WKCACFViewDraw" is unresolved. WKCACFViewWindow.obj : error LNK2001: external symbol "__imp__WKCACFViewDrawIntoDC" is unresolved. E:\WebKit\WebKitBuild\Debug_Cairo_CFLite\bin\WebKit_debug.dll : fatal error LNK1120: How can I fix that errors? Yours sincerely Kunio From aroben at apple.com Mon Oct 3 08:19:29 2011 From: aroben at apple.com (Adam Roben) Date: Mon, 03 Oct 2011 11:19:29 -0400 Subject: [webkit-help] I need help in building webkit wincairo In-Reply-To: <4E8983AE.6070605@fusenetwork.co.jp> References: <4E8983AE.6070605@fusenetwork.co.jp> Message-ID: <0C3C8F1B-19F3-4AF7-84B9-83DD9F2C8F9E@apple.com> On Oct 3, 2011, at 5:43 AM, Kunio Yamazaki wrote: > I am trying to build the wincairo version with the source of webkit r96399. > Development environment is [ Window + cygwin + vs2005 ES(Sp1) ] > > However, the error same as a release and debug build was outputted. > > WKCACFViewWindow.obj : error LNK2001: external symbol "__imp__WKCACFViewUpdate" is unresolved. > WKCACFViewWindow.obj : error LNK2001: external symbol "__imp__WKCACFViewDraw" is unresolved. > WKCACFViewWindow.obj : error LNK2001: external symbol "__imp__WKCACFViewDrawIntoDC" is unresolved. > E:\WebKit\WebKitBuild\Debug_Cairo_CFLite\bin\WebKit_debug.dll : fatal error LNK1120: > > How can I fix that errors? Something is causing the WinCairo build to try to link against WebKitQuartzCoreAdditions.lib. I don't think the WinCairo port should be using that library. Brent Fulgham might have some ideas as to why this is happening. -Adam From bfulgham at gmail.com Mon Oct 3 12:18:38 2011 From: bfulgham at gmail.com (Brent Fulgham) Date: Mon, 3 Oct 2011 12:18:38 -0700 Subject: [webkit-help] I need help in building webkit wincairo In-Reply-To: <4E8983AE.6070605@fusenetwork.co.jp> References: <4E8983AE.6070605@fusenetwork.co.jp> Message-ID: Hi Kunio, On Mon, Oct 3, 2011 at 2:43 AM, Kunio Yamazaki wrote: > I am trying to build the wincairo version with the source of webkit r96399. > Development environment is [ Window + cygwin + vs2005 ES(Sp1) ] According to the build bot, that revision should be fine. (http://build.webkit.org/builders/WinCairo%20Debug%20%28Build%29/builds/11498). I'm guessing that one of the following is the problem: 1. Are you building from within Visual Studio? If so, please be sure you are using either the "Release_Cairo_CFLite" or "Debug_Cairo_CFLite" targets. I have accidentally built with the wrong flavor on more than one occasion! :-) 2. If you are using "build-webkit", please make sure you are passing the "--wincairo" command line argument to be sure it builds properly. Can you post a full build log somewhere I could view it? Thanks, -Brent From yamazaki at fusenetwork.co.jp Mon Oct 3 18:38:12 2011 From: yamazaki at fusenetwork.co.jp (Kunio Yamazaki) Date: Tue, 04 Oct 2011 10:38:12 +0900 Subject: [webkit-help] I need help in building webkit wincairo In-Reply-To: References: <4E8983AE.6070605@fusenetwork.co.jp> Message-ID: <4E8A6384.7040903@fusenetwork.co.jp> Hi Brent, (2011/10/04 4:18), Brent Fulgham wrote: > I'm guessing that one of the following is the problem: > > 1. Are you building from within Visual Studio? No, I am building the wincairo port at the command line. > 2. If you are using "build-webkit", please make sure you are passing > the "--wincairo" command line argument to be sure it builds properly. > > Can you post a full build log somewhere I could view it? Thank you Brent. Build log is carried. But the following sites are Japanese although I am sorry. http://wiki.livedoor.jp/noppo/d/wincairo%20build%20error%20%282011/10/03%29 And in order to build at a command line, the following commands are executed in cygwin. Although this is the procedure currently continued from last year, has it made a mistake in some? $ cd /cygdrive/e $ svn checkout --revision 96399 http://svn.webkit.org/repository/webkit/trunk WebKit $ WebKit/Tools/Scripts/update-webkit-auxiliary-libs $ WebKit/Tools/Scripts/update-webkit-support-libs $ WebKit/Tools/Scripts/update-webkit-wincairo-libs $ WebKit/Tools/Scripts/set-webkit-configuration --debug --32-bit $ WebKit/Tools/Scripts/build-webkit --debug --wincairo Checking Last-Modified date of WinCairoRequirements.zip... Current WinCairoRequirements is up to date Building results into: /cygdrive/e/WebKit/WebKitBuild WEBKITOUTPUTDIR is set to: E:\WebKit\WebKitBuild WEBKITLIBRARIESDIR is set to: E:\WebKit\WebKitLibraries\win /cygdrive/c/Program Files/Microsoft Visual Studio 8/Common7/IDE/VCExpress.exe win\WebKit.vcproj\WebKit.sln /build Debug_Cairo_CFLite Found 0 Visual Studio Express Build Logs: ===== BUILD FAILED ====== Please ensure you have run Tools/Scripts/update-webkit to install dependencies. You can view build errors by checking the BuildLog.htm files located at: /cygdrive/e/WebKit/WebKitBuild/obj//. Thanks, -Kunio From vizshala at gmail.com Mon Oct 3 19:48:12 2011 From: vizshala at gmail.com (vizshala) Date: Tue, 4 Oct 2011 10:48:12 +0800 Subject: [webkit-help] how to get formatted console message from inspector without displaying frontend Message-ID: Dear All, I'm trying to get the formatted console message from inside WebCore. At the first, I added a function called formattedMessage to Console domain defined in inspector.json. Then, I modify ConsoleView.js to allow ConsoleMessage be sent back to InspectorConsoleAgent through this customized function. The net effect is that I can not receive the formatted message unless the inspector frontend is shown. If there is anyway to get the formatted console message without showing the inspector frontend? Thanks. With Regards, vizshala at gmail.com -------------- next part -------------- An HTML attachment was scrubbed... URL: From bfulgham at gmail.com Mon Oct 3 21:22:28 2011 From: bfulgham at gmail.com (Brent Fulgham) Date: Mon, 3 Oct 2011 21:22:28 -0700 Subject: [webkit-help] I need help in building webkit wincairo In-Reply-To: <4E8A6384.7040903@fusenetwork.co.jp> References: <4E8983AE.6070605@fusenetwork.co.jp> <4E8A6384.7040903@fusenetwork.co.jp> Message-ID: <591B73CB-3460-417A-9078-A9118B1772E5@gmail.com> Hi Kunio, On Oct 3, 2011, at 6:38 PM, Kunio Yamazaki wrote: >> 2. If you are using "build-webkit", please make sure you are passing >> the "--wincairo" command line argument to be sure it builds properly. >> >> Can you post a full build log somewhere I could view it? > > Thank you Brent. > Build log is carried. But the following sites are Japanese although I am sorry. > http://wiki.livedoor.jp/noppo/d/wincairo%20build%20error%20%282011/10/03%29 It looks like the build is proceeding using the correct target, so I'm not sure what's going on. The only thing I can think of at the moment is: > $ cd /cygdrive/e > $ svn checkout --revision 96399 http://svn.webkit.org/repository/webkit/trunk WebKit Is /cygdrive/e your HOME location? I have only really had success building in a subdirectory of the Cygwin 'HOME' directory. > $ WebKit/Tools/Scripts/set-webkit-configuration --debug --32-bit > $ WebKit/Tools/Scripts/build-webkit --debug --wincairo I think you want the "wincairo" flag here as well: > $ WebKit/Tools/Scripts/set-webkit-configuration --debug --32-bit --wincairo I'm worried that the build failures are somehow related to the Japanese Windows localization. Are there any error messages in the earlier sections of the build (e.g., while building WTF/JavaScriptCore)? > Checking Last-Modified date of WinCairoRequirements.zip... > Current WinCairoRequirements is up to date > Building results into: /cygdrive/e/WebKit/WebKitBuild > WEBKITOUTPUTDIR is set to: E:\WebKit\WebKitBuild > WEBKITLIBRARIESDIR is set to: E:\WebKit\WebKitLibraries\win > /cygdrive/c/Program Files/Microsoft Visual Studio 8/Common7/IDE/VCExpress.exe win\WebKit.vcproj\WebKit.sln /build Debug_Cairo_CFLite > Found 0 Visual Studio Express Build Logs: This looks exactly right. I don't understand why this is causing trouble. Where is your WEBKITLIBRARIESDIR pointed? Some of the flags that control the build are stored in this directory. If the environment variable points to an 'old' location, it might be causing the build to use the wrong flags. Thanks, -Brent -------------- next part -------------- An HTML attachment was scrubbed... URL: From tech.tantrik at gmail.com Tue Oct 4 00:00:15 2011 From: tech.tantrik at gmail.com (Techie Tantrik) Date: Tue, 4 Oct 2011 12:30:15 +0530 Subject: [webkit-help] qtWebKit CSS Trasformations Message-ID: Hi, I have qtwebkit running on ARM based platform. I am facing a strange problem. When run normal pages with JScript movement, it works fine. But the same if I use CSS transformations, it is not working. I am using only one transformation *"**$("#images, #captions").css("-webkit-transform","translate(0px, 0px)");"* in my HTML page, it just hangs. There is no further movement. Instead of CSS transformation, i tried with Just an alert message. But even that its hanging. (Even if it is not executing the CSS transformation) To check whats happening, i compiled webcore with trace functionality and last few call trace is given below: ENT WebCore::HTMLScriptElement::dispatchErrorEvent ENT WebCore::HTMLScriptElement::dispatchErrorEvent EXT WebCore::HTMLScriptElement::dispatchErrorEvent EXT WebCore::HTMLScriptElement::dispatchErrorEvent EXT WebCore::HTMLScriptElement::dispatchErrorEvent ENT WebCore::CachedResource::removeClient ENT WebCore::CachedResource::removeClient ENT WebCore::CachedResource::removeClient ENT WebCore::CachedResource::removeClient ENT WebCore::CachedResource::removeClient ENT WTF::HashTableIterator ENT std::pair ENT std::pair EXT std::pair ENT std::pair ENT std::pair ENT std::pair ENT std::pair EXT std::pair EXT std::pair EXT std::pair EXT std::pair ENT std::pair EXT std::pair ENT std::pair ENT std::pair EXT std::pair EXT std::pair ENT std::pair ENT std::pair EXT std::pair ENT std::pair EXT std::pair EXT std::pair ENT std::pair EXT std::pair ENT std::pair EXT std::pair ENT std::pair ENT std::pair EXT std::pair EXT std::pair EXT std::pair ENT WTF::HashTable ENT WTF::HashTable ENT WTF::HashTable ENT WTF::HashTable EXT WTF::HashTable EXT WTF::HashTable EXT WTF::HashTable EXT WTF::HashTable EXT WTF::HashTableIterator EXT WebCore::CachedResource::removeClient ENT WebCore::CachedResource::removeClient EXT WebCore::CachedResource::removeClient EXT WebCore::CachedResource::removeClient EXT WebCore::CachedResource::removeClient ENT WTF::HashCountedSet ENT WTF::HashCountedSet ENT WTF::HashCountedSet ENT WTF::HashCountedSet ENT WTF::HashTable ENT WTF::HashTable ENT WTF::HashTable ENT WTF::HashTable EXT WTF::HashTable EXT WTF::HashTable EXT WTF::HashTable EXT WTF::HashTable EXT WTF::HashCountedSet ENT WTF::HashCountedSet EXT WTF::HashCountedSet EXT WTF::HashCountedSet EXT WTF::HashCountedSet ENT WTF::HashCountedSet ENT WTF::HashTableIterator ENT WTF::HashTableIterator ENT WTF::HashTableIterator EXT WTF::HashTableIterator EXT WTF::HashTableIterator EXT WTF::HashTableIterator EXT WTF::HashCountedSet ENT WTF::HashTableIteratorAdapter ENT WTF::HashTableIteratorAdapter ENT WTF::HashTableIteratorAdapter ENT WTF::HashTableIteratorAdapter ENT WTF::HashTableIteratorAdapter EXT WTF::HashTableIteratorAdapter EXT WTF::HashTableIteratorAdapter EXT WTF::HashTableIteratorAdapter EXT WTF::HashTableIteratorAdapter EXT WTF::HashTableIteratorAdapter ENT WTF::HashCountedSet After this I dont see any call. So does any body has any idea what might be the problem? -------------- next part -------------- An HTML attachment was scrubbed... URL: From stanislas.selle at gmail.com Tue Oct 4 05:19:27 2011 From: stanislas.selle at gmail.com (Stanislas Selle) Date: Tue, 4 Oct 2011 14:19:27 +0200 Subject: [webkit-help] Call a javascript by the WebKitView GTK api Message-ID: Hello , how can i call a Javascript code , or fire a alert for instance , by using the webkit port in GTK ? i found webkit_dom_document_exec_command but i didn't find a documentation about it , and i don't know to use it... any help is welcome. -- Stanislas -------------- next part -------------- An HTML attachment was scrubbed... URL: From yamazaki at fusenetwork.co.jp Tue Oct 4 17:34:27 2011 From: yamazaki at fusenetwork.co.jp (Kunio Yamazaki) Date: Wed, 05 Oct 2011 09:34:27 +0900 Subject: [webkit-help] I need help in building webkit wincairo In-Reply-To: <591B73CB-3460-417A-9078-A9118B1772E5@gmail.com> References: <4E8983AE.6070605@fusenetwork.co.jp> <4E8A6384.7040903@fusenetwork.co.jp> <591B73CB-3460-417A-9078-A9118B1772E5@gmail.com> Message-ID: <4E8BA613.4050901@fusenetwork.co.jp> Hi Brent, Thank you for your reply. (2011/10/04 13:22), Brent Fulgham wrote: >> $ cd /cygdrive/e >> $ svn checkout --revision 96399 http://svn.webkit.org/repository/webkit/trunk WebKit > Is /cygdrive/e your HOME location? > I'm worried that the build failures are somehow related to the Japanese Windows localization. /cygdrive/e is my HOME location. webkit 533+ build, there was no problem. > Are there any error messages in the earlier sections of the build > (e.g., while building WTF/JavaScriptCore)? No, the message had neither an error nor warning. > I don't understand why this is causing trouble. Really, it is regrettable. The external symbol which incidentally became an error, It seems that it is defined as WebKitQuatzCoreAdditions.lib Would you teach around here, if some are understood? Thanks, -Kunio From vsbhogle at gmail.com Tue Oct 4 23:12:52 2011 From: vsbhogle at gmail.com (Sumedh) Date: Wed, 5 Oct 2011 11:42:52 +0530 Subject: [webkit-help] IWebDocumentView and IWebDocumentRepresentation for Windows Apple Build Message-ID: Hi, I am using WebKit apple port for windows, i have extended the WinLauncher project. I wanted to write my own protocol handler for particular mime type, lets say "image/". I have implemented IWebDocumentView and IWebDocumentRepresentation. As required, i am passing the pointer to the objects of the respective classes to the RegisterViewClass method of IWebView object, now this method returns me E_NOTIMPL, which means the method is not implemented, Do i need to implement IWebView also? Is there anything extra to be done to write my own handler for a particular mime type. Meanwhile, my aim is to load all the resources from the memory, Idea is something like this, all web pages, resources (js, images etc) resides in some database, to be particular SQLITE. I want to read this resources and pages from the blob, and render it on the WebView, from the memory. For Internet Explorer, i have written similar kind of thing, implementing IInternetProtocol, thanks to Igor. ( http://msdn.microsoft.com/en-us/library/aa767883%28v=vs.85%29.aspx). Am i following the right approach for the WebKit. Sample Code: //Create WebView Instance hr = WebKitCreateInstance(CLSID_WebView, 0, IID_IWebView, (void**)&myWebView); //Create IWebDocumentView instance myWebDocumentView = new WinLauncherWebDocumentView(); myWebDocumentView->AddRef(); //Create IWebDocumentRepresentation Instance myWebDocumentRepresentation = new WinLauncherWebDocumentRepresentation(); myWebDocumentRepresentation->AddRef(); //Register the class hr = myWebView->registerViewClass(myWebDocumentView, myWebDocumentRepresentation, L"image/"); In this case hr is E_NOTIMPL EIN? (Please thell me if any extra Information Needed) Dhanyawaad (Thanks) -- Namaskar, Sumedh S Bhogle Mumbai | Mob. 09969085122 -------------- next part -------------- An HTML attachment was scrubbed... URL: From hazyboy at 126.com Wed Oct 5 02:14:52 2011 From: hazyboy at 126.com (=?GBK?B?z/K2qA==?=) Date: Wed, 5 Oct 2011 17:14:52 +0800 (CST) Subject: [webkit-help] how to breakpoint to debug for webkit project. In-Reply-To: <32a88ba7.2b4b.132d3508f69.Coremail.hazyboy@126.com> References: <32a88ba7.2b4b.132d3508f69.Coremail.hazyboy@126.com> Message-ID: <7581b75b.2c88.132d35d3170.Coremail.hazyboy@126.com> my os is : mac 10.7, and webkit source is : R9**** version. I Can debug breakpoint JavascriptCore, webcore, webkit2 for attach to safari webProcess, but only can't breakpoint debug in webkit project. please tell me how to breakpoint debug in webkit project, thanks . -------------- next part -------------- An HTML attachment was scrubbed... URL: From stanislas.selle at gmail.com Wed Oct 5 04:08:42 2011 From: stanislas.selle at gmail.com (Stanislas Selle) Date: Wed, 5 Oct 2011 13:08:42 +0200 Subject: [webkit-help] Call a javascript by the WebKitView GTK api In-Reply-To: References: Message-ID: i found the function : webkit_web_view_execute_script (webkitwebview, gchar*) 2011/10/4 Stanislas Selle > Hello , how can i call a Javascript code , or fire a alert for instance , > by using the webkit port in GTK ? > > i found webkit_dom_document_exec_command > > but i didn't find a documentation about it , and i don't know to use it... > > any help is welcome. > > -- > Stanislas > -------------- next part -------------- An HTML attachment was scrubbed... URL: From haertel at equinux.de Wed Oct 5 04:54:46 2011 From: haertel at equinux.de (=?iso-8859-1?Q?Simon_H=E4rtel?=) Date: Wed, 5 Oct 2011 13:54:46 +0200 Subject: [webkit-help] WebKit for multiple Mac OS versions Message-ID: Hello, We are considering to ship a custom build or nightly build of WebKit with our application, which runs on Mac OS X 10.5 and later, to take advantage of the latest improvements to HTML editing (especially removal of Apple style spans). We noticed that the nightly builds come in different versions for each major OS version. Is it possible to get/build a WebKit which runs on all Mac OS versions starting with 10.5? Thanks in advance! Simon Haertel From TELarson at west.com Wed Oct 5 06:27:08 2011 From: TELarson at west.com (Larson, Timothy E.) Date: Wed, 5 Oct 2011 08:27:08 -0500 Subject: [webkit-help] WebKit for multiple Mac OS versions In-Reply-To: References: Message-ID: <226316B3E1F749498E28ACA66321D5BA02B69D2DC5@oma00cexmbx03.corp.westworlds.com> > We are considering to ship a custom build or nightly build of WebKit with > our application, which runs on Mac OS X 10.5 and later, to take advantage > of the latest improvements to HTML editing (especially removal of Apple > style spans). We noticed that the nightly builds come in different > versions for each major OS version. Is it possible to get/build a WebKit > which runs on all Mac OS versions starting with 10.5? Not speaking for WebKit, but I'd assume that the one for 10.5 would run on later versions as well. The tendency is to add more features as function calls to the OS, not remove them (which would break existing apps). Tim From aroben at apple.com Wed Oct 5 06:34:33 2011 From: aroben at apple.com (Adam Roben) Date: Wed, 05 Oct 2011 09:34:33 -0400 Subject: [webkit-help] IWebDocumentView and IWebDocumentRepresentation for Windows Apple Build In-Reply-To: References: Message-ID: On Oct 5, 2011, at 2:12 AM, Sumedh wrote: > Hi, > > I am using WebKit apple port for windows, i have extended the WinLauncher project. I wanted to write my own protocol handler for particular mime type, lets say "image/". I have implemented IWebDocumentView and IWebDocumentRepresentation. As required, i am passing the pointer to the objects of the respective classes to the RegisterViewClass method of IWebView object, now this method returns me E_NOTIMPL, which means the method is not implemented, Do i need to implement IWebView also? Is there anything extra to be done to write my own handler for a particular mime type. > > Meanwhile, my aim is to load all the resources from the memory, Idea is something like this, all web pages, resources (js, images etc) resides in some database, to be particular SQLITE. I want to read this resources and pages from the blob, and render it on the WebView, from the memory. For Internet Explorer, i have written similar kind of thing, implementing IInternetProtocol, thanks to Igor. (http://msdn.microsoft.com/en-us/library/aa767883%28v=vs.85%29.aspx). Am i following the right approach for the WebKit. > > Sample Code: > > //Create WebView Instance > hr = WebKitCreateInstance(CLSID_WebView, 0, IID_IWebView, (void**)&myWebView); > > //Create IWebDocumentView instance > myWebDocumentView = new WinLauncherWebDocumentView(); > myWebDocumentView->AddRef(); > > //Create IWebDocumentRepresentation Instance > myWebDocumentRepresentation = new WinLauncherWebDocumentRepresentation(); > myWebDocumentRepresentation->AddRef(); > > //Register the class > hr = myWebView->registerViewClass(myWebDocumentView, myWebDocumentRepresentation, L"image/"); > > In this case hr is E_NOTIMPL > > EIN? (Please thell me if any extra Information Needed) The IWebView::registerViewClass function has never been implemented in WebKit. (See .) If all you want to do is provide custom data for certain resources and have WebKit render the resulting data for you, you might want to investigate using IWebResourceLoadDelegate::willSendRequest to modify the URLs of those resources to use a custom URL scheme, and then implement a handler for your URL scheme that provides the desired data. URL handlers are a feature of whatever networking library you're using, not of WebKit itself, so the mechanism for implementing one depends on which networking library you're using. If you really need to provide a custom view, you could investigate IWebUIDelegatePrivate::embeddedViewWithArguments and IWebEmbeddedView. This lets you supply a custom HWND to be used for rendering an