container which gets periodically filled with job results. the HTML looks like this: -----------------------------------------------------------------------

some job results

----------------------------------------------------------------------- The KSS looks like this: ----------------------------------------------------------------------- #job-container:timeout { evt-timeout-delay: 3000; evt-timeout-repeat: True; action-server: live_kss; } ------------------------------------------------------------------------ so every 3 seconds my live_kss gets called which inserts a new

as the first child into my job-container: Finally, here my question: Is it possible in KSS to count the child elements of my job-container to prevent an overflow? Maybe after 5 childs have been added to the container, we start to delete the last child for every new child added? something like: if ksscore.countNodes(ksscore.getHtmlIdSelector('job-container')) > 5: ksscore.deleteNodeBefore( ksscore.getHtmlIdSelector('last-node')) Thanks a lot and sorry if this question don't fits into this mailing list -ramonski From gotcha at bubblenet.be Fri Jun 20 15:37:30 2008 From: gotcha at bubblenet.be (Godefroid Chapelle) Date: Fri, 20 Jun 2008 15:37:30 +0200 Subject: [Kss-devel] insertHTMLAsFirstChild with tables In-Reply-To: References: <485B7C21.5080605@bubblenet.be> <8E54A42F-9B1C-4BEE-A59C-E40B97B3FA8A@yahoo.de> <485BA054.5070009@bubblenet.be> Message-ID: <485BB29A.801@bubblenet.be> Ramon Bartl wrote: >> Ramon Bartl wrote: >>> Hi Godefroid, >>>> I have no magic wand for you now ;-) >>> It's a pity;) >>>> I think we will need to quit using innerHTML and go back to DOM >>>> construction. >>>> >>>> I am afraid that in the meanwhile, you'll need to refresh the full >>>> table :-S >>> I'm using now div boxes to do the work, there it works fine:) >> Much better, except when table is semantically needed ! > > A table would actually fit better, because I'm trying to display test > results which have columns like: > > number, tests ok, tests failed, total time > > so I have to do some css magic now to display the test results exactly > among each other.... > > > .... but I have another question, if this is allowed in the kss > developer list (probably more a plone users question): > > I made a

container which gets periodically filled with job > results. > > the HTML looks like this: > ----------------------------------------------------------------------- >

some job results

> >

> ----------------------------------------------------------------------- > > The KSS looks like this: > ----------------------------------------------------------------------- > #job-container:timeout { > evt-timeout-delay: 3000; > evt-timeout-repeat: True; > action-server: live_kss; > } > ------------------------------------------------------------------------ > > so every 3 seconds my live_kss gets called which inserts a new

> as the first child into my job-container: > > Finally, here my question: > > Is it possible in KSS to count the child elements of my job-container > to prevent an overflow? > Maybe after 5 childs have been added to the container, we start to > delete the last child for every new child added? > > something like: > > > if ksscore.countNodes(ksscore.getHtmlIdSelector('job-container')) > 5: > ksscore.deleteNodeBefore( > ksscore.getHtmlIdSelector('last-node')) > > > > Thanks a lot and sorry if this question don't fits into this mailing > list It does fit very well the list. With KSS, the server should always be in charge; the client is a view of the server. IOW, the server-side should maintain the number of divs and send back a delete command when it knows it has sent two many divs; > > -ramonski -- Godefroid Chapelle (aka __gotcha) http://bubblenet.be From ramon_bartl at yahoo.de Fri Jun 20 15:50:28 2008 From: ramon_bartl at yahoo.de (Ramon Bartl) Date: Fri, 20 Jun 2008 15:50:28 +0200 Subject: [Kss-devel] insertHTMLAsFirstChild with tables In-Reply-To: <485BB29A.801@bubblenet.be> References: <485B7C21.5080605@bubblenet.be> <8E54A42F-9B1C-4BEE-A59C-E40B97B3FA8A@yahoo.de> <485BA054.5070009@bubblenet.be> <485BB29A.801@bubblenet.be> Message-ID: Am 20.06.2008 um 15:37 schrieb Godefroid Chapelle: > Ramon Bartl wrote: >>> Ramon Bartl wrote: >>>> Hi Godefroid, >>>>> I have no magic wand for you now ;-) >>>> It's a pity;) >>>>> I think we will need to quit using innerHTML and go back to DOM >>>>> construction. >>>>> >>>>> I am afraid that in the meanwhile, you'll need to refresh the >>>>> full table :-S >>>> I'm using now div boxes to do the work, there it works fine:) >>> Much better, except when table is semantically needed ! >> A table would actually fit better, because I'm trying to display >> test results which have columns like: >> number, tests ok, tests failed, total time >> so I have to do some css magic now to display the test results >> exactly among each other.... >> .... but I have another question, if this is allowed in the kss >> developer list (probably more a plone users question): >> I made a

container which gets periodically filled with job >> results. >> the HTML looks like this: >> ----------------------------------------------------------------------- >>

some job results

>> >>

>> ----------------------------------------------------------------------- >> The KSS looks like this: >> ----------------------------------------------------------------------- >> #job-container:timeout { >> evt-timeout-delay: 3000; >> evt-timeout-repeat: True; >> action-server: live_kss; >> } >> ------------------------------------------------------------------------ >> so every 3 seconds my live_kss gets called which inserts a new >>

as the first child into my job-container: >> Finally, here my question: >> Is it possible in KSS to count the child elements of my job- >> container to prevent an overflow? >> Maybe after 5 childs have been added to the container, we start to >> delete the last child for every new child added? >> something like: >> >> if ksscore.countNodes(ksscore.getHtmlIdSelector('job-container')) > >> 5: >> ksscore.deleteNodeBefore( >> ksscore.getHtmlIdSelector('last-node')) >> >> Thanks a lot and sorry if this question don't fits into this >> mailing list > > It does fit very well the list. > > With KSS, the server should always be in charge; the client is a > view of the server. > > IOW, the server-side should maintain the number of divs and send > back a delete command when it knows it has sent two many divs; Thanks Godefroid for the fast reply:) I made it now quite simple, I simply added empty div's at the end of my template;)

some job results

so I have stack hight of 5 items and can remove always the last node when I add one.... Maybe some kind of MacGyver solution, but works fine:) cheers ramonski From ree at ree.hu Fri Jun 20 16:30:18 2008 From: ree at ree.hu (Balazs Ree) Date: Fri, 20 Jun 2008 16:30:18 +0200 Subject: [Kss-devel] insertHTMLAsFirstChild with tables References: <485B7C21.5080605@bubblenet.be> Message-ID: On Fri, 20 Jun 2008 11:45:05 +0200, Godefroid Chapelle wrote: > Ramon Bartl wrote: >> ree told me already that the browsers don't allow to do an innerHTML >> inside a table, but also told me that there is maybe a workaround from >> __gotcha? >> >> Godefroid?;) do you know how to do the browser-innerHTML-table-dance? >> >> > I have no magic wand for you now ;-) > > I think we will need to quit using innerHTML and go back to DOM > construction. I think it's worth to elaborate this point a little. We can see from experience that both methods have their problems. There is no silver bullet, and we have to prepare for providing workarounds in the future as well, whichever method we choose - unless some radical change happens in the world of browsers. innerHTML has its merits: it works on all browsers (except for this case which is not covered by the standard), and it is the fastest way of content insertion, according to all benchmarks. For this reason, I believe that we should consider having two methods. Apply the faster innerHTML for most cases, and provide another (slower, but working) method for the special cases like the table rows and others. Best wishes, -- Balazs Ree From gotcha at bubblenet.be Fri Jun 20 16:46:08 2008 From: gotcha at bubblenet.be (Godefroid Chapelle) Date: Fri, 20 Jun 2008 16:46:08 +0200 Subject: [Kss-devel] insertHTMLAsFirstChild with tables In-Reply-To: References: <485B7C21.5080605@bubblenet.be> Message-ID: <485BC2B0.6000304@bubblenet.be> Balazs Ree wrote: > On Fri, 20 Jun 2008 11:45:05 +0200, Godefroid Chapelle wrote: > >> Ramon Bartl wrote: > >>> ree told me already that the browsers don't allow to do an innerHTML >>> inside a table, but also told me that there is maybe a workaround from >>> __gotcha? >>> >>> Godefroid?;) do you know how to do the browser-innerHTML-table-dance? >>> >>> >> I have no magic wand for you now ;-) >> >> I think we will need to quit using innerHTML and go back to DOM >> construction. > > I think it's worth to elaborate this point a little. > > We can see from experience that both methods have their problems. > There is no silver bullet, and we have to prepare for providing > workarounds in the future as well, whichever method we choose - unless > some radical change happens in the world of browsers. > > innerHTML has its merits: it works on all browsers (except for this case > which is not covered by the standard), and it is the fastest way of > content insertion, according to all benchmarks. I found benchmarks that show that DOM construction is actually slower but only 10%. Their claim being that most benchmarks forget to take escaping in account which needs to be done somewhere. > > For this reason, I believe that we should consider having two methods. > Apply the faster innerHTML for most cases, and provide another > (slower, but working) method for the special cases like the table rows > and others. In theory, I agree. I just wonder if we can think of all special cases. And if it would not be better to have a functioning system a little slower. You are not supposed to add enormous amount of HTML with Ajax. If you need to change so much HTML, it's maybe worth refreshing the whole page ! > > Best wishes, > > -- Godefroid Chapelle (aka __gotcha) http://bubblenet.be From hedleyroos at gmail.com Sun Jun 22 11:53:37 2008 From: hedleyroos at gmail.com (Hedley Roos) Date: Sun, 22 Jun 2008 11:53:37 +0200 Subject: [Kss-devel] insertHTMLAsFirstChild with tables In-Reply-To: <485BC2B0.6000304@bubblenet.be> References: <485B7C21.5080605@bubblenet.be> <485BC2B0.6000304@bubblenet.be> Message-ID: <776caf8b0806220253l15e99537x7bab0769f468cb17@mail.gmail.com> >ree told me already that the browsers don't allow to do an innerHTML >inside a table, but also told me that there is maybe a workaround from >__gotcha? > >Godefroid?;) do you know how to do the browser-innerHTML-table-dance? > I do have a browser-innerHTML-table-dance that works on all browsers. I'm going to give a full example, but I'll keep it short. This is simplified from a product called Plone4Radio which I'm working on. If you need the source I'll gladly provide. Template chart_edit.pt --------------------------------

Song

browser/kss.py ---------------------- def addSong(self): context = aq_inner(self.context) newid = context.generateUniqueId('Song') context.invokeFactory('Song', newid) song = context._getOb(newid) # xxx: I have a problem with Plone viewlets for some reason, so I call the macro # with my own evalMacro script (which I do not supply in this posting). html = context.evalMacro( 'chart_edit', 'songrow', song=song, include_placeholder=1) """ You'll need to change this code to pass song parameter etc. I don't know how to do this right now :( html = self.wrapper.render( viewMacro = self.macros['live-table-row'], ) """ ksscore = self.getCommandSet('core') selector = ksscore.getHtmlIdSelector('chart-edit-songrow-placeholder') ksscore.replaceHTML(selector, html) return self.render() The only problem I see is that I have a placeholder with NO td's inside, which is technically a violation of HTML standards. And if I totally misunderstood what you were trying to accomplish then sorry! Hedley From hedleyroos at gmail.com Sun Jun 22 11:53:37 2008 From: hedleyroos at gmail.com (Hedley Roos) Date: Sun, 22 Jun 2008 11:53:37 +0200 Subject: [Kss-devel] insertHTMLAsFirstChild with tables In-Reply-To: <485BC2B0.6000304@bubblenet.be> References: <485B7C21.5080605@bubblenet.be> <485BC2B0.6000304@bubblenet.be> Message-ID: <776caf8b0806220253l15e99537x7bab0769f468cb17@mail.gmail.com> >ree told me already that the browsers don't allow to do an innerHTML >inside a table, but also told me that there is maybe a workaround from >__gotcha? > >Godefroid?;) do you know how to do the browser-innerHTML-table-dance? > I do have a browser-innerHTML-table-dance that works on all browsers. I'm going to give a full example, but I'll keep it short. This is simplified from a product called Plone4Radio which I'm working on. If you need the source I'll gladly provide. Template chart_edit.pt --------------------------------

Song