Any design/doc available about the "engine" ?

On Fri, May 15, 2009 at 3:23 PM, Jian Fang <[email protected]> wrote:

> You are welcome.
>
> You have good point about the Runtime matching instead of relying on static
> types, which is also a strong motivation
> for us to move some of the logic to the Engine side so that the Engine
> could do runtime matching and detecting directly
> instead of the round trip from core to Engine.
>
> I also suggest you first implement couple smaller and less complicated
> widgets to get familiar with Tellurium widget and
> get to know its shortcomings and possible ways to improve it.
>
> I am not sure I could work on the widget soon, but definitely will go back
> to refactor it later.
>
> Thanks,
>
> Jian
>
>
> On Fri, May 15, 2009 at 3:09 PM, Nicolae Vintila <[email protected]>wrote:
>
>> Yes, we might need more machinery - glad you are interested. :-)
>>
>> I will start with what we have and bug you along the way.
>>
>> Will likely develop for the needs I have and go towards generality instead
>> of trying to map the entire library.
>>
>> Maybe we need some way to have the widget itself participate in the
>> pattern matching using ... "imperative" logic.
>>
>> Will likely also need some runtime determination about the type of
>> components.
>>
>> The template assumes the concrete types of the widgets are statically
>> determined - but at runtime there may be more specific types : Panel vs
>> FormPanel.
>>
>> I am grateful for the superb support and assistance so far.
>>
>> Nick
>>
>>
>>
>>
>> On Fri, May 15, 2009 at 2:59 PM, Jian Fang <[email protected]>wrote:
>>
>>> I see your goal here. I agree it is too complicated to express in
>>> Tellurium UI templates. Maybe we need some other mechanisms
>>> to handle this type of complexity. How about have another tier for the
>>> transform? I mean
>>>
>>> Widget UI module
>>>
>>>       |
>>>
>>> Javascript Library specific transform
>>>
>>>      |
>>>
>>> Tellurium UI module
>>>
>>> In this way, hope the transform tier could absorb some dynamic factors
>>> here.
>>>
>>> I have not worked on Widget for quite some time and maybe should re-think
>>> about the widget architecture.
>>> The key thing here is how to find widget in the runtime DOM and then act
>>> on each individual element, which
>>> is really a pattern matching problem and how to describe the Widget with
>>> as least attributes as possible.
>>>
>>> Need more thoughts on this.
>>>
>>> Thanks,
>>>
>>> Jian
>>>
>>>
>>>
>>> On Fri, May 15, 2009 at 2:41 PM, Nicolae Vintila <[email protected]>wrote:
>>>
>>>>
>>>> "You want to optimize the attributes in the UI module so that the UI
>>>> module works better for XPath or jQuery
>>>> selector, right? "
>>>>
>>>> I want to use an approach that makes it possible to manage the
>>>> complexity of so many complex widgets - EXT-JS is a large library and
>>>> encapsulates a significant complexity.
>>>>
>>>> Many widgets with numerous options which all influence the generated
>>>> DOM.
>>>>
>>>> Does not seem possible to completely cover the combinations - even the
>>>> rendering of a button in a form can be customized with a template... - see
>>>> end.
>>>>
>>>> Cheers
>>>> Nick
>>>>
>>>> From FormLayout.js
>>>>
>>>>         if(!this.fieldTpl){
>>>>                         var t = new Ext.Template(
>>>>                 '<div class="x-form-item {5}" tabIndex="-1">',
>>>>                     '<label for="{0}" style="{2}"
>>>> class="x-form-item-label">{1}{4}</label>',
>>>>                     '<div class="x-form-element" id="x-form-el-{0}"
>>>> style="{3}">',
>>>>                     '</div><div class="{6}"></div>',
>>>>                 '</div>'
>>>>             );
>>>>             t.disableFormats = true;
>>>>             t.compile();
>>>>             Ext.layout.FormLayout.prototype.fieldTpl = t;
>>>>
>>>>
>>>> ----
>>>>
>>>> Generates
>>>>
>>>>
>>>> <div class="x-form-item"
>>>>
>>>> tabindex="-1">
>>>>
>>>> <label id="ext-gen1435"
>>>>
>>>> for="lookupComboBox"
>>>>
>>>> style="width: 60px;"
>>>>
>>>> class="x-form-item-label">CAP
>>>>
>>>> code:</label>
>>>>
>>>>
>>>> <div class="x-form-element"
>>>>
>>>> id="x-form-el-DayTimeEntryForm_capCode_lookupComboBox"
>>>>
>>>> style="padding-left: 65px;">
>>>>
>>>> <div style="width: 0px;"
>>>>
>>>> id="ext-gen1154"
>>>>
>>>> class="x-form-field-wrap">
>>>>
>>>> <input style="width: 300px;"
>>>>
>>>> class="x-form-text x-form-field"
>>>>
>>>> size="24"
>>>>
>>>> autocomplete="off"
>>>>
>>>> id="lookupComboBox"
>>>>
>>>> name="codeLookup"
>>>>
>>>> type="text"><img
>>>>
>>>> style="display: none;"
>>>>
>>>> id="ext-gen1155"
>>>>
>>>> src="
>>>> http://localhost:8080/webtime/com.mercer.apps.webtime.webtime_web/clear.cache.gif
>>>> "
>>>>
>>>> class="x-form-trigger x-form-arrow-trigger">
>>>>
>>>> </div>
>>>>
>>>> </div>
>>>>
>>>> <div class="x-form-clear-left"></div>
>>>>
>>>> </div>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>
>>>
>>>
>>
>>
>>
>
> >
>

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