Hi guys! I wrote a simple component that can set the focus in any form control across multiple submissions, this is useful to control form navigation.
How to use:
In jsp (before close h:form):
<s:focus id="focus" component="txtId" />
in managed bean:
private HtmlFocus focus;
focus = (HtmlFocus)form.findComponent("focus");
focus.setComponent("txtNome");
--
Yours truly (Atenciosamente),
Rogério
/** * Copyright 2004-2005 The Apache Software Foundation. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package org.apache.myfaces.custom.focus; import javax.faces.component.UIComponentBase; /** * @author Rogerio Pereira Araujo (latest modification by $Author$) * @version $Revision$ $Date$ */ public class HtmlFocus extends UIComponentBase { public static final String COMPONENT_TYPE = "org.apache.myfaces.Focus"; public static final String DEFAULT_RENDERER_TYPE = "org.apache.myfaces.Focus"; public static final String COMPONENT_FAMILY = "javax.faces.Output"; private String _component = null; public String getFamily() { return COMPONENT_FAMILY; } public void setComponent(String component) { this._component = component; } public String getComponent() { return _component; } }
/** * Copyright 2004-2005 The Apache Software Foundation. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package org.apache.myfaces.custom.focus; import java.io.IOException; import javax.faces.component.UIComponent; import javax.faces.context.FacesContext; import javax.faces.context.ResponseWriter; import javax.faces.render.Renderer; import org.apache.myfaces.renderkit.RendererUtils; import org.apache.myfaces.renderkit.html.HTML; /** * @author Rogerio Pereira Araujo (latest modification by $Author$) * @version $Revision$ $Date$ */ public class HtmlFocusRenderer extends Renderer { public void encodeEnd(FacesContext facesContext, UIComponent uiComponent) throws IOException { RendererUtils.checkParamValidity(facesContext, uiComponent, HtmlFocus.class); HtmlFocus focus = (HtmlFocus) uiComponent; String component = focus.getComponent(); if(component == null) component = (String) focus.getAttributes().get("component"); if(component != null) { String clientId = focus.findComponent(component).getClientId(facesContext); ResponseWriter writer = facesContext.getResponseWriter(); writer.startElement(HTML.SCRIPT_ELEM, uiComponent); writer.writeAttribute(HTML.SCRIPT_TYPE_ATTR, HTML.SCRIPT_TYPE_TEXT_JAVASCRIPT, null); writer.writeText("document.getElementById('" + clientId + "').focus()", null); writer.endElement(HTML.SCRIPT_ELEM); } } }
/** * Copyright 2004-2005 The Apache Software Foundation. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package org.apache.myfaces.custom.focus; import javax.faces.application.Application; import javax.faces.component.UIComponent; import javax.faces.webapp.UIComponentTag; import javax.faces.el.ValueBinding; import javax.faces.context.FacesContext; /** * @author Rogerio Pereira Araujo (latest modification by $Author$) * @version $Revision$ $Date$ */ public class HtmlFocusTag extends UIComponentTag { private String _component = null; public String getComponentType() { return HtmlFocus.COMPONENT_TYPE; } public String getRendererType() { return HtmlFocus.DEFAULT_RENDERER_TYPE; } public void release() { super.release(); _component=null; } /** * overrides setProperties() form UIComponentTag. */ protected void setProperties(UIComponent component) { super.setProperties(component); if (_component != null) { if (isValueReference(_component)) { FacesContext context = FacesContext.getCurrentInstance(); Application app = context.getApplication(); ValueBinding vb = app.createValueBinding(_component); component.setValueBinding("component", vb); } else component.getAttributes().put("component", _component); } } public void setComponent(String component) { this._component = component; } public String getComponent() { return _component; } }
<component>
<component-type>org.apache.myfaces.Focus</component-type>
<component-class>org.apache.myfaces.custom.focus.HtmlFocus</component-class>
</component>
<render-kit>
<render-kit-id>HTML_BASIC</render-kit-id>
<renderer>
<component-family>javax.faces.Output</component-family>
<renderer-type>org.apache.myfaces.Focus</renderer-type>
<renderer-class>org.apache.myfaces.custom.focus.HtmlFocusRenderer</renderer-class>
</renderer>
</render-kit>
sandbox-test.tld
Description: Binary data
