Seaside function onLoad problematic

dtrussardi@tiscali.it wrote

Ciao Johan,


        i add the A B C considerations.

> Hi Dario,
>
> Try:
>
> html document addLoadScript: (html javascript: ‘so_initdtr()’)

A) The: html javascript:   is not supported by the system

                        The call answer: " you sent a message this type of object doesn't understand"

>
> As you can notice in the generated html output, the contents of the loadscript is a JS string.

        Yes but into it the so_initdtr() is surround by the "

                <script type="text/javascript">function onLoad(){"soinitdtr()";};</script>


B) I change the JSStream encodeString: aString on: aStream   metod

        removing the initial and final "aStream nextPut: $'."  ( view the **** )

         encodeString: aString on: aStream
        "Strings have a complicated encoding in Javascript, try to optimize their serialization."
               
****  "aStream nextPut: $'."
       
        1 to: aString size do: [ :index |
                | char value encoded |
                char := aString at: index.
                value := char greaseInteger.
                value < JavascriptCharacters size
                        ifFalse: [
                                "U+2028 and U+2029 have to be treaded as new lines"
                                value = 16r2028 "Line separator"
                                        ifTrue: [ aStream nextPutAll: '\u2028' ]
                                        ifFalse: [
                                                value = 16r2029 "Paragraph separator"
                                                        ifTrue: [ aStream nextPutAll: '\u2029' ]
                                                        ifFalse: [ aStream nextPut: char ] ] ]
                        ifTrue: [
                                encoded := JavascriptCharacters at: value + 1.
                                "we use nil markers becausee #isNil is faster than #isString because it's not
                                actually sent"
                                encoded isNil
                                        ifTrue: [ aStream nextPut: char ]
                                        ifFalse: [ aStream nextPutAll: encoded ] ] ].
**** "aStream nextPut: $'"


        With this modification my code works fine.

        The browser  report:

                 <script type="text/javascript">function onLoad(){so_initdtr();};</script>

        But with this change the JQuery example don't works.


C) My final considerations is relative to the WAScriptGenerator writeLoadScriptsOn: aDocument metod

        I change it to the seaside 3.0 version:

        writeLoadScriptsOn: aDocument
        "Utility method to write the receivers load scripts onto aDocument."

        " *** ----
                self loadScripts do: [ :each |
                aDocument stream javascript: each.
                aDocument  nextPut: $; ]"
       
        "**** +++ "
        self loadScripts do: [ :each |
                aDocument nextPutAll: each greaseString; nextPut: $; ]

        With just this change everything works, but it is in the right direction?


        Thanks,

                Dario

>
> cheers
> Johan
>
>> On 26 Nov 2016, at 19:00, [hidden email] wrote:
>>
>> Ciao,
>>
>> into Pharo5.0 with Seaside 3.2 ( but i have the same problematic into Pharo 4.0 with Seaside 3.1 )
>>
>> when define a function to load when the page has finished loading
>>
>> with addLoadScript: 'so_initdtr()'.
>>
>> the function is not called.
>>
>>
>> For example:
>>
>>
>> renderContentOn: html
>>
>> html document addLoadScript: 'so_initdtr()'.
>>
>> html heading: 'Pippo'.
>>
>>
>> The html report:
>>
>> <script type="text/javascript">function onLoad(){"soinitdtr()";};</script>>>
>> but the browser don't call it when load the page.
>>
>> The relative javascript code is right loaded into the browser.
>>
>> I can call the so_initdtr() function with the browser console and it works fine.
>>
>>
>> Thanks in advance!
>>
>> Dario
>>
>>
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