[richfaces-issues] [JBoss JIRA] (RF-13306) Autocomplete: initialize value from DOM (was: ignored API call .setValue(''))

[Lukáš Fryč (JIRA)]

     [ https://issues.jboss.org/browse/RF-13306?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Lukáš Fryč updated RF-13306:
----------------------------

    Assignee: alexey plotnikov  (was: Lukáš Fryč)

    
> Autocomplete: initialize value from DOM (was: ignored API call .setValue(''))
> -----------------------------------------------------------------------------
>
>                 Key: RF-13306
>                 URL: https://issues.jboss.org/browse/RF-13306
>             Project: RichFaces
>          Issue Type: Feature Request
>      Security Level: Public(Everyone can see) 
>    Affects Versions: 4.3.4
>            Reporter: alexey plotnikov
>            Assignee: alexey plotnikov
>             Fix For: 4.3.5
>
>   Original Estimate: 30 minutes
>  Remaining Estimate: 30 minutes
>
> All described here https://community.jboss.org/thread/233973
> I have this autocomplete component:
> {code}
> <table>   
>    <tr>   
>       <td>   
>          <rich:autocomplete mode="ajax" autocompleteMethod="#{autocomplete.autocompleteProviders}"   
>                             minChars="0" var="s" fetchValue="#{s.realName}" id="provider-suggestion"   
>                             autofill="false"   
>                             onselectitem="autocompleteChangeProvider(event.target)" style="display: inline;"   
>                             layout="table" value="#{autocomplete.providerName}" >   
>             <a4j:queue requestDelay="500" ignoreDupResponses="true" />   
>             <h:column>   
>                <h:outputText style="display:none;" value="#{s.id}"/>   
>                <h:outputText style="display:none;" value="#{s.realName}"/>   
>             </h:column>   
>             <h:column>   
>                <h:outputText value="#{s.name}" escape="false"/>   
>             </h:column>   
>          </rich:autocomplete>   
>       </td>   
>       <td>   
>          <h:graphicImage value="/img/arrow.png" onclick="#{rich:component('provider-suggestion')}.setValue('');#{rich:component('provider-suggestion')}.showPopup();stopEvent(event);"   
>                          alt=""/>   
>          <h:graphicImage value="/img/cancel.png"   
>                          onclick="#{rich:component('provider-suggestion')}.hidePopup();#{rich:component('provider-suggestion')}.setValue('');autocompleteChangeProvider(null);"   
>                          alt="#{messages['pages.clear']}" title="#{messages['pages.clear']}"/>   
>          <h:inputHidden id="filter-provider-id" value="#{autocomplete.providerId}"/>   
>       </td>   
>    </tr>   
> </table>
> {code}
> as you can see, i don't use showButton="true", because i need another functionality, i need erase input text before show popup window.
> I use JavaScript function "autocompleteChangeProvider" for extract selected id.
> I use separate button(/img/cancel.png) for erase input text, as you can see this function just use Richfaces API.
>  
> And a problem:
> if autocomplete.providerName not null and not empty(in rich:autocomplete) and user clicks on show button(/img/arrow.png) than input text not erasing, but i called #{rich:component('provider-suggestion')}.setValue('') !!!
>  
> I think i found a solution
> AutocompleteBase.js has this code:
> {code}
> rf.ui.AutocompleteBase = function(componentId, selectId, fieldId, options) {  
>         // call constructor of parent class  
>         $super.constructor.call(this, componentId);  
>         this.selectId = selectId;  
>         this.fieldId = fieldId;  
>         this.options = $.extend({}, defaultOptions, options);  
>         this.namespace = this.namespace || "." + rf.Event.createNamespace(this.name, this.selectId);  
>         this.currentValue = "";  
>         this.tempValue = this.getValue();  
>         this.isChanged = this.tempValue.length != 0;  
>         bindEventHandlers.call(this);  
>     };
> {code}
> as you can see this.currentValue = "" so JS thinks that this.currentValue="" so currentValue equal new value("" - empty string), so nothing happens.
> i replace this code by this:
> {code}
> rf.ui.AutocompleteBase = function(componentId, selectId, fieldId, options) {  
>         // call constructor of parent class  
>         $super.constructor.call(this, componentId);  
>         this.selectId = selectId;  
>         this.fieldId = fieldId;  
>         this.options = $.extend({}, defaultOptions, options);  
>         this.namespace = this.namespace || "." + rf.Event.createNamespace(this.name, this.selectId);  
>         this.currentValue = $(rf.getDomElement(fieldId)).val();  
>         this.tempValue = this.getValue();  
>         this.isChanged = this.tempValue.length != 0;  
>         bindEventHandlers.call(this);  
>     };
> {code}
> and it works!

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