seaside June 2007

seaside@lists.squeakfoundation.org

70 participants
73 discussions

Seaside + Scriptaculous: updating checkbox value
by Leandro Pérez 11 Jun '07

11 Jun '07

Hi, I'm trying to do something like this: I have a checkbox displaying the state of a door, i.e. open->checked, closed->unchecked. When clicking the checkbox, the door must be closed or opened (a server side model object representing the door is asked to be closed/opened via ajax). The thing is that according to different variables evaluated on the model on the server at the time the door is asked to be closed/opened, it is effectively closed/opened or not, and therefore the checkbox on the browser might be inconsistent with the real state of the door after the petition. My problem is, I can't find the way to update the value of the checkbox without refreshing the whole page, i'm currently trying something like this: renderContentOn: html ... html form id:'myForm'; with: [ (html checkbox) id: 'door_checkbox_' , doorNumber printString; value: (myModelDoorManager isDoorClosed: doorNumber); onClick: (html evaluator callback: [:script | myModelDoorManager operateOnDoor: doorNumber. ..."here! the checkbox value should be updated to the proper one obtained from a door model object on the server side" "the value is obtained from the model object in the server side using: myModelDoorManager isDoorClosed: doorNumber" ] ] i'm currently using VisualWorks NonCommercial, 7.5 Seaside2.7b1 Scriptaculous2.6-mb.8 Regards, Leandro -- View this message in context: http://www.nabble.com/Seaside-%2B-Scriptaculous%3A-updating-checkbox-value-… Sent from the Squeak - Seaside mailing list archive at Nabble.com.

2 4

32bit clean VM work.
by John M McIntosh 11 Jun '07

11 Jun '07

Some of you might know that David T. Lewis has been working on changes to the VM source to make it work fully within 32 or 64 bit address spaces. As we know the Squeak VM treated memory address which are unsigned values as signed integer values. This wrong usage of signed math in compare statments or do loops which would cause the VM to make an incorrect decision resulting in corrupted memory and causing the VM to crash. This issue would usually occur if you wanted to use 1GB of memory for your VM and the host operating system would then allocate memory for you above the 2GB boundary, or at say the 1.5GB boundary. Resulting either in an instant crash, or a crash much later when your memory needs caused the VM to grow over the 2GB boundary. Some fixes were done in the past to make the VM mostly run when fully over the 2GB boundary but at best they were insufficient patches. Over the last couple of days I reviewed David Lewis' changes, plus made some fixes, and revised the macintosh os-x support files, plus worked up some general test cases to see what happens when you run the macro bench marks below the 2GB boundary, crossing the 2GB boundary, and when the image is allocated at the 3GB boundary. This afternoon I'm pleased to say the VM passed all runs of my trivial test cases, so I have check in the Mac OS carbon source code changes and David's changes to the Mac OS source tree for further review. People wanting to build a VM should review the Mac OS build instructions to build a Mac OS carbon VM, or review the required changes to VMMaker as per the Carbon VM build readme to build a 32bit clean VM. I have not: (a) build a 64 bit VM and tested it. VM developers should consider the mmap call in the memory allocation routine, you can specify a suggested starting position. On OS-X I was able to chose 1GB, 1.5GB, 2GB and 3GB. I have not tested 64bit VMs at the 0x8000000000000000 boundary. I suspect you could allocate at the 0x7FFFFFFFF0000000 Then ask for 600MB of memory for the image. That would set the end of memory at 0x8000000015800000, 344MB over the negative sign boundary. (b) I have not tested or reviewed any of the external plugins for improper use of usqInt. (c) I have not confirmed the changes work with the Unix VM, or the Windows VM, I have no plans to do so. -- ======================================================================== === John M. McIntosh <johnmci(a)smalltalkconsulting.com> Corporate Smalltalk Consulting Ltd. http://www.smalltalkconsulting.com ======================================================================== ===

2 3

Re: [Seaside] CSS dinamycally manipulated
by Boris Popov 10 Jun '07

10 Jun '07

+1, the whole reason behind css is to separate it from content, why mash them back together? Instead we should remove #style: and go the other way. Cheers! -Boris (Sent from a BlackBerry) ----- Original Message ----- From: seaside-bounces(a)lists.squeakfoundation.org <seaside-bounces(a)lists.squeakfoundation.org> To: 'Seaside - general discussion' <seaside(a)lists.squeakfoundation.org> Sent: Sat Jun 09 15:04:34 2007 Subject: RE: [Seaside] CSS dinamycally manipulated > I believe that having a dynamic css doesn't urge the > designers to program it. Of course not, because designers don't program. > I don't like much this old way of > thinking: code and coders at one side, design tools and > designers at the other one. Data vs code. It's not old thinking, it's reality! > Coders and designers should do there work orthogonnally > without annoying each other and with their own point of view. Agreed, hence HTML for programmers, and CSS for designers. > But why not doing this on the same language core. Because if designers understand the language we work in, they aren't designers, they're programmers. > It would even be nice for designers to have a bit of coding > possibilities like macros. This standard philosophy results Then they become programmers, not designers. > to the failure of Lisp. I hope the trendy solution like > XML/XSLT would give us a future way of composing > page/wiki/application in a more DSL fashion. You have a design DSL already, it's called CSS. _______________________________________________ Seaside mailing list Seaside(a)lists.squeakfoundation.org http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside

2 1

About asking questions
by Lukas Renggli 10 Jun '07

10 Jun '07

A lot of people are asking question in the Seaside mailing-list and I think this is really a good thing that should be encouraged. There are some things however I would like to point out to make the whole process as efficient as possible, for people asking and answering questions. 1. Always state the version of Seaside/Scriptaculous you are using. Also state the platform (Squeak, VisualWorks, ...) you are on. 2. Provide a minimal file-out with your mail that shows your problem. It is really annoying and time-cosumung to have to copy and past code into Squeak, register the application, add missing code to make it work, etc. So the requirement is: a file-out that is minimal, that shows the problem and that registers itself as application. 3. Don't write private mails to Seaside developers, they all have other things to do as well. Write to the mailing-list, unless you have a consulting contract. In general this article is a really nice reference on how to ask questions in a mailing-list: http://www.catb.org/~esr/faqs/smart-questions.html. Cheers, Lukas -- Lukas Renggli http://www.lukas-renggli.ch

2 1

Re: Problem with Scriptaculous
by Lukas Renggli 10 Jun '07

10 Jun '07

> I am trying to get a clickable map type effect > using scriptaculous. I have a graph rendered > by GraphViz, I need scriptaculous to tell me the > click co-ordinates so that I can work out what in > the graph was clicked upon. > > It wouldn't be the first time that I didnt know what > I was doing, but I wondered if you could look at > this code for me. > > The containing div id is 'workflow'. > The problem is that callback "B" works, and callback > "A" doesnt. If I swap them around only the second > one works. Is this to be expected? I tried to reproduce the problem, but it works for me (see my file-out). My code evaluates all 4 callbacks correctly and I get the two co-ordinates displayed. I had to refactor your code a bit as it was missing some pieces, so maybe the problem is hidden there. Two comments: 1. The offset co-ordinates you get are probably not those you expect. offsetTop and offsetLeft answer the offset [1] up to the next absolute or relative positioned div, generally not those relative to the upper left corner of the document. In you case you probably need to use something like cumulativeOffset [2]. It also depends on your styles of course, so I don't know if that is a problem in your case. [1] http://developer.mozilla.org/en/docs/DOM:element.offsetLeft [2] http://prototypejs.org/api/position/cumulativeoffset 2. You can improve the performance of your example by combining the two #updater together. The first of your #updater is not really an #updater, it does not update anything. The #requestor would do here as well. I suggest to combine them to something like: html updater id: 'co-ordinates'; callback: [ :v | ... ] value: ...; callback: [ :v | ... ] value: ...; callback: [ :v | ... ] value: ...; callback: [ :v | ... ] value: ...; on: #renderCoordinatesOn: of: self Cheers, Lukas >renderImageOn: html > | offsetX offsetY | > > offsetX := ValueHolder new. > offsetY := ValueHolder new. > self generateGraphForm. > html image > id: 'workflow-image'; > onClick: (html updater > "A" callback: [ :v | offsetY contents: v asNumber ] value: (((SUElement on: html) id: 'workflow') property:'offsetTop'); > "B" callback: [ :v | offsetX contents: v asNumber ] value: (((SUElement on: html) id: 'workflow') property:'offsetLeft'); > callback: [ :v | graphFormClickX := v asNumber - offsetX contents ] value: SUEvent new x; > callback: [ :v | graphFormClickY := v asNumber - offsetY contents ] value: SUEvent new y); > onClick: (html updater id: 'co-ordinates'; on: #renderCoordinatesOn: of: self ); > form: graphForm "; height: (form height // self scaleDownFactor); width: (form width // self scaleDownFactor)" > "] " -- Lukas Renggli http://www.lukas-renggli.ch

1 1

Exception >> #description vs. messageText portability
by Philippe Marschall 10 Jun '07

10 Jun '07

Hi I had a look at the Gemstone Seaside port and they converted some Exception >> #description to Exception >> #messageText. This was also done in later Seaside versions (Walback and friends). How do these messages compare from a portability standpoint? Which should we use were? Cheers Philippe

2 1

Receiving the Answer of a Child Component?
by Michael Gorsuch 09 Jun '07

09 Jun '07

Newbie alert, folks. My root component is a subclass of WATask (named GHStart), and the first move in my workflow is basically this: user := self call: (GHWelcome new) GHWelcome renders two child component: one that allows users to register, and one that allows them to login. Might as well serve both on one page, right? So, the essence of my problem: when a user logs in or creates a new account, those child components need to return the user object, causing the GHWelcome instance to #answer the originating #call from the instance of GHStart. Any ideas as to how I can do this? Please be gentle, as I am rather new to Smalltalk in general (I hail from Ruby). There might already be a tutorial that I am missing, or this may have already been answered on the list before, I just don't know the right thing to search for. It seem inappropriate to have the children talk to the parent, GHWelcome, as that pretty much throws the idea of reusability out the window... Thanks, Michael Gorsuch -- Styled Bits 2.0: They're Mostly Broken, But I Try http://www.styledbits.com

3 3

More than one component in a page
by Rajeev Lochan 09 Jun '07

09 Jun '07

Dear Seasiders, I am a newbie and have encountered the following hurdle in my web application. I have modified the code from ( http://www.lukas-renggli.ch/smalltalk/seaside/artofseaside.txt) and have added a page which has a number of titles of lists. I have a component (say component1) which has titles of lists. On clicking any title, the corresponding list opens up in another page(component2) which has a number of items. Now I want to have both on same page. On the left I should have component1, on clicking any title, the contents of that particular list should be displayed next to it. I have been trying to follow up the WAStore (SushiStore) example, but not able to succeed in doing so. Are there any other tutorials or examples, from where I can pick some points. Anticipating your help, Rajeev -- Rajeev Lochan Co-founder, AR-CAD.com http://www.ar-cad.com +91 9212090622 (Gurgaon) 080 65355873 (Bangalore)

2 1

internalization support
by Andrius Paulavicius 09 Jun '07

09 Jun '07

Hello there, What is the proper way to use Unicode and do internalization in Seaside? Now I’m trying to bypass wrong page encoding it in a very silly way by editing all text from the web browser, still possibility to enter Unicode characters into input fields would be nice ;) Thanks in advance

2 3

Change normal button for colour (again)
by Rubén Parra Savall 09 Jun '07

09 Jun '07

Thanks for trying to help me before, but I proved everything was in my scope and it was impossible to solve my problem yet. Maybe the code clarify more.(Omit the unnecessary for this case) I have the main renderContentOn that calls renderCell renderContentOn:html html table: [ 1 to: 10 do: [ :row | html tableRow: [ 1 to: 10 do: [ :col | html tableData: [ self renderCell: row @ col on: html ] ] ] ] ] . Each cell has a value, at first is zero, but if you submit the button, it changes, and with this, here we have the point, it should change of colour or stay with another if the value isn't changed. Now just show the value renderCell: aPoint on: html | value | value := self model boardAt2: aPoint. "Method to extract the value of the point in the array" html submitButtonWithAction: [ value isZero ifTrue: [ bool := (self model checkValue: aPoint). (bool == true) ifTrue: [ self model boardAt2: aPoint put: 1. self answer: self model. ] ifFalse: [ self inform: ' Error'. ] . ] ifFalse: [ self inform: ' Error '. ] . ] text: (value isZero ifTrue: [ ' ' ] ifFalse: [ value ] ) . Thanks very much, any help is more than welcome Rubén _________________________________________________________________ Un amor, una aventura, compañía para un viaje. Regístrate gratis en MSN Amor & Amistad. http://match.msn.es/match/mt.cfm?pg=channel&tcid=162349

2 1

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

2004

2003

2002

seaside June 2007