[jira] Commented: (TRINIDAD-663) Idea for a new component to enhance PPR

["Andrew Robinson (JIRA)" <de...@myfaces.apache.org>]

    [ https://issues.apache.org/jira/browse/TRINIDAD-663?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12523707 ] 

Andrew Robinson commented on TRINIDAD-663:
------------------------------------------

Example usages:

Trigger immediately, useful for re-rendering on validation/conversion failures:

<tr:inputText required="true" partialTriggers="myTrigger" />
<cw:partialTrigger id="myTrigger" immediate="true">
  <tr:commandLink partialSubmit="true" text="Test" />
</cw:partialTrigger>

Force other components to trigger:

<tr:inputText id="mytext" />
<cw:partialTrigger partialTargets="mytext">
  <tr:commandLink partialSubmit="true" text="Test" />
</cw:partialTrigger>

Support triggering on multiple components with less work:

<tr:inputText partialTriggers="myTrigger" />
<cw:partialTrigger id="myTrigger">
  <tr:commandLink partialSubmit="true" text="Test" />
  <tr:commandLink partialSubmit="true" text="Test2" />
  <tr:commandLink partialSubmit="true" text="Test3" />
  <tr:commandLink partialSubmit="true" text="Test4" />
  <tr:commandLink partialSubmit="true" text="Test5" />
  <tr:commandLink partialSubmit="true" text="Test6" />
</cw:partialTrigger>

> Idea for a new component to enhance PPR
> ---------------------------------------
>
>                 Key: TRINIDAD-663
>                 URL: https://issues.apache.org/jira/browse/TRINIDAD-663
>             Project: MyFaces Trinidad
>          Issue Type: Improvement
>          Components: Components
>    Affects Versions: 1.0.2-core
>            Reporter: Andrew Robinson
>         Attachments: PartialTriggerEvent.java, PartialTriggerListener.java, UIPartialTrigger.java
>
>
> It is not currently possible out of the box to control when in the JSF lifecycle a Trinidad component triggers its partial notification outside of actually changing the phase ID of the events, which is not always possible. 
> Also, it is very difficult to have a component listen to many components. For example, someone may want to say, re-render component x when any child of y is triggered. 
> There is also no functionality  for a push type of PPR. Meaning that right now components specify that they want to be triggered, but there is no way to say for a component to target other components (for example, specify on a button to re-render a text box, instead of specifying on a text-box to re-render on that button).
> I will attach code that I am using in my private project for a component that makes this relatively easy.

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