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Public API for the Apache MyFaces Trinidad project
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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.trinidad.skin;
import java.util.Map;
import javax.el.ValueExpression;
import javax.faces.el.ValueBinding;
import org.apache.myfaces.trinidad.util.ToStringHelper;
/**
*
* SkinAddition objects are used by custom component developers who have created custom
* components, and they need a way to 'push' in their own stylesheet and
* resource bundle for these components into some skin of their choosing,
* most likely the simple skin.
*
* A Skin object contains zero or more SkinAdditions. The SkinAdditions' stylesheets
* are merged into the Skin's own stylesheet. The SkinAdditions' resource
* bundle is looked at along with the Skin's own resource bundle when Skin's
* getTranslatedValue is called.
*
*
* If you want to 'push' your styles into a specific skin, then you would create a skin-addition in the trinidad-skins.xml file.
* You specify a <skin-addition>. The children are: <skin-id>,
* <style-sheet-name>, <bundle-name>, and <translation-source>.
* The <skin-id> is used to specify which skin you want to 'push' your stylesheet/resource bundle into.
* Most likely this is the simple.desktop skin.
* The other elements are used to create a SkinAddition object.
*
*/
public class SkinAddition implements Comparable
{
/**
* Constructor takes a styleSheet name and a resourceBundle name.
* @deprecated Use builder to create a SkinAddition object.
* @See Builder
*/
@Deprecated
public SkinAddition (
String styleSheetName,
String resourceBundleName
)
{
_styleSheetName = styleSheetName;
_resourceBundleName = resourceBundleName;
_translationSourceVE = null;
_translationSourceVB = null;
_skinFeatures = null;
_skinId = null;
}
/**
* Constructor takes a styleSheet name and a translationSource ValueExpression.
* @deprecated Use builder to create a SkinAddition object.
* @See Builder
*/
@Deprecated
public SkinAddition (
String styleSheetName,
ValueExpression translationSourceValueExpression
)
{
_styleSheetName = styleSheetName;
_resourceBundleName = null;
_translationSourceVE = translationSourceValueExpression;
_translationSourceVB = null;
_skinFeatures = null;
_skinId = null;
}
/**
* Constructor takes a styleSheet name. resource bundle name and
* translation source value expression will be null.
* @deprecated Use builder to create a SkinAddition object.
* @See Builder
*/
@Deprecated
public SkinAddition (
String styleSheetName
)
{
_styleSheetName = styleSheetName;
_resourceBundleName = null;
_translationSourceVE = null;
_translationSourceVB = null;
_skinFeatures = null;
_skinId = null;
}
/**
* Constructor takes a styleSheet name and a resourceBundle name.
* @deprecated Use builder to create a SkinAddition object.
* @See Builder
*/
@Deprecated
public SkinAddition (
String styleSheetName,
String resourceBundleName,
Map features
)
{
_styleSheetName = styleSheetName;
_resourceBundleName = resourceBundleName;
_translationSourceVE = null;
_translationSourceVB = null;
_skinFeatures = features;
_skinId = null;
}
/**
* Constructor takes a styleSheet name and a translationSource ValueExpression.
* @deprecated Use builder to create a SkinAddition object.
* @See Builder
*/
@Deprecated
public SkinAddition (
String styleSheetName,
ValueExpression translationSourceValueExpression,
Map features
)
{
_styleSheetName = styleSheetName;
_resourceBundleName = null;
_translationSourceVE = translationSourceValueExpression;
_translationSourceVB = null;
_skinFeatures = features;
_skinId = null;
}
/**
* Constructor takes a styleSheet name. resource bundle name and
* translation source value expression will be null.
* @deprecated Use builder to create a SkinAddition object.
* @See Builder
*/
@Deprecated
public SkinAddition (
String styleSheetName,
Map features
)
{
_styleSheetName = styleSheetName;
_resourceBundleName = null;
_translationSourceVE = null;
_translationSourceVB = null;
_skinFeatures = features;
_skinId = null;
}
/**
* Constructor takes only features.
* @deprecated Use builder to create a SkinAddition object.
* @See Builder
*/
@Deprecated
public SkinAddition (
Map features
)
{
_styleSheetName = null;
_resourceBundleName = null;
_translationSourceVE = null;
_translationSourceVB = null;
_skinFeatures = features;
_skinId = null;
}
/**
* Constructor takes a styleSheet name and a translationSource ValueBinding.
* ValueBinding is deprecated, use ValueExpression for setting the translationSource
* @deprecated Use builder to create a SkinAddition object.
* @See Builder
*/
@Deprecated
public SkinAddition (
String styleSheetName,
ValueBinding translationSourceValueBinding
)
{
_styleSheetName = styleSheetName;
_resourceBundleName = null;
_translationSourceVE = null;
_translationSourceVB = translationSourceValueBinding;
_skinFeatures = null;
_skinId = null;
}
/**
* Gets the skin id to which this skin addition belongs to.
*/
public String getSkinId()
{
return _skinId;
}
/**
* Gets the SkinAddition's style sheet name.
* Note that in order to avoid infinite call loop the implementation of getStylesheetName() in
* this class or sub classes should not call toString().
*/
public String getStyleSheetName()
{
return _styleSheetName;
}
/**
* Gets the SkinAddition's resource bundle.
* A skin cannot have both a resourceBundleName and a translation source
* value expression. If they do, then the resourceBundleName takes precedence.
* Note that in order to avoid infinite call loop the implementation of getResourceBundleName()
* in this class or sub classes should not call toString().
*/
public String getResourceBundleName()
{
return _resourceBundleName;
}
/**
* @inheritDoc
* Note that in order to avoid infinite call loop the implementation of getStyleSheetName()
* and getResourceBundleName() in this class or its sub classes should not call toString().
*/
@Override
public String toString()
{
ToStringHelper helper =
new ToStringHelper(this).
append("styleSheetName", getStyleSheetName()).
append("bundleName", getResourceBundleName());
if (_translationSourceVE != null)
{
helper.append("translationExpr", _translationSourceVE.getExpressionString());
}
if (_translationSourceVB != null)
{
helper.append("translationBindingExpr", _translationSourceVB.getExpressionString());
}
return helper.toString();
}
/**
* Gets the SkinAddition's translation source ValueExpresion. The
* ValueExpression can point to a Map or a ResourceBundle.
* Note: A skin cannot have both a resourceBundleName and a translation source
* value expression. If they do, then the resourceBundleName takes precedence.
*/
public ValueExpression getTranslationSourceValueExpression()
{
return _translationSourceVE;
}
/**
* Gets the SkinAddition's translation source ValueBinding. The
* ValueBinding can point to a Map or a ResourceBundle.
* Note: A skin cannot have both a resourceBundleName and a translation source
* value binding. If they do, then the resourceBundleName takes precedence.
* @deprecated
*/
@Deprecated
public ValueBinding getTranslationSourceValueBinding()
{
return _translationSourceVB;
}
/**
* Gets any skin features added through the skin addition
*/
public Map getSkinFeatures()
{
return _skinFeatures;
}
/**
* Compares two skinning additions for the purposes of ordering. Currently this
* method compares the stylesheet name. If both names are null, then they are
* considered equal. If one of the names is null and the other isn't, the null
* value is always less then the real value. Other then that the values will be
* returned according to the string's natural order.
*
* @param t
* @return
*
* @throws NullPointerException if t is null
* @throws ClassCastException id t is not an instance of StyleSheetAddition
*/
public int compareTo(Object t)
{
String comparedName = ((SkinAddition)t).getStyleSheetName();
String thisName = getStyleSheetName();
if(null == thisName)
{
if(null == comparedName)
{
//Both stylesheet names are null, so they are equal
return 0;
}
//This stylesheet name is null and the other isn't. This is always less
return -1;
}
if(null == comparedName)
{
//Compared object is null, this one isn't
return 1;
}
int result = thisName.compareTo(comparedName);
return result;
}
/**
* convenience builder for SkinAddition
* does not support the deprecated ValueBinding for translationSource
*/
public static class Builder
{
public Builder()
{
_skinFeatures = new SkinFeatures();
}
public Builder skinId(String skinId)
{
_skinId = skinId;
return this;
}
public Builder styleSheetName(String styleSheetName)
{
_styleSheetName = styleSheetName;
return this;
}
public Builder resourceBundleName(String resourceBundleName)
{
_resourceBundleName = resourceBundleName;
return this;
}
public Builder translationSource(ValueExpression translationSource)
{
_translationSource = translationSource;
return this;
}
public Builder features(SkinFeatures skinFeatures)
{
// set only a non null SkinFeatures object
if (skinFeatures != null)
_skinFeatures = skinFeatures;
return this;
}
public SkinAddition build()
{
return new SkinAddition(this);
}
private String _styleSheetName;
private String _skinId;
private String _resourceBundleName;
private ValueExpression _translationSource;
private SkinFeatures _skinFeatures;
}
@Override
public boolean equals(Object o)
{
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
SkinAddition addition = (SkinAddition) o;
if (_resourceBundleName != null ? !_resourceBundleName.equals(addition._resourceBundleName) : addition._resourceBundleName != null)
return false;
if (_skinFeatures != null ? !_skinFeatures.equals(addition._skinFeatures) : addition._skinFeatures != null)
return false;
if (_skinId != null ? !_skinId.equals(addition._skinId) : addition._skinId != null)
return false;
if (_styleSheetName != null ? !_styleSheetName.equals(addition._styleSheetName) : addition._styleSheetName != null)
return false;
if (_translationSourceVE != null ? !_translationSourceVE.equals(addition._translationSourceVE) : addition._translationSourceVE != null)
return false;
return true;
}
@Override
public int hashCode()
{
int result = 17;
result = 37 * result + (null == _styleSheetName ? 0 : _styleSheetName.hashCode());
result = 37 * result + (null == _skinId ? 0 : _skinId.hashCode());
result = 37 * result + (null == _resourceBundleName ? 0 : _resourceBundleName.hashCode());
result = 37 * result + (null == _translationSourceVE ? 0 : _translationSourceVE.hashCode());
result = 37 * result + (null == _skinFeatures ? 0 : _skinFeatures.hashCode());
return result;
}
/**
* Constructor for SkinAddition based on Builder
* This constructor can be used to create SkinAddition object for any combination of parameters
* @param builder
* @See Builder
*/
private SkinAddition (Builder builder)
{
_skinId = builder._skinId;
_styleSheetName = builder._styleSheetName;
_resourceBundleName = builder._resourceBundleName;
_translationSourceVE = builder._translationSource;
_skinFeatures = builder._skinFeatures.getFeatures();
// this is deprecated so we do not support this in the new API
_translationSourceVB = null;
}
private final String _styleSheetName;
private final String _skinId;
private final String _resourceBundleName;
private final ValueExpression _translationSourceVE;
private final ValueBinding _translationSourceVB;
private final Map _skinFeatures;
}