diff options
Diffstat (limited to 'framework/Web/UI/TTemplateManager.php')
| -rw-r--r-- | framework/Web/UI/TTemplateManager.php | 166 |
1 files changed, 156 insertions, 10 deletions
diff --git a/framework/Web/UI/TTemplateManager.php b/framework/Web/UI/TTemplateManager.php index 26cc9c3a..fa4cbcbf 100644 --- a/framework/Web/UI/TTemplateManager.php +++ b/framework/Web/UI/TTemplateManager.php @@ -126,8 +126,7 @@ class TTemplateManager extends TModule * can be a property name, an event name or a regular tag attribute name.
* - directive: directive specifies the property values for the template owner.
* It is in the format of <% property name-value pairs %>
- * - expressions: expressions are shorthand of {@link TExpression} and {@link TStatements}
- * controls. They are in the formate of <= PHP expression > and < PHP statements >
+ * - expressions: They are in the formate of <= PHP expression > and <% PHP statements >
* - comments: There are two kinds of comments, regular HTML comments and special template comments.
* The former is in the format of <!-- comments -->, which will be treated as text strings.
* The latter is in the format of <%* comments %>, which will be stripped out.
@@ -310,7 +309,16 @@ class TTemplate extends TApplicationComponent implements ITemplate }
}
else // string
- $parent->addParsedObject($object[1]);
+ {
+ if($object[1] instanceof TCompositeLiteral)
+ {
+ $o=clone $object[1];
+ $o->setContainer($tplControl);
+ $parent->addParsedObject($o);
+ }
+ else
+ $parent->addParsedObject($object[1]);
+ }
}
}
@@ -388,8 +396,7 @@ class TTemplate extends TApplicationComponent implements ITemplate $component->$setter($this->getApplication()->getParameters()->itemAt($value[1]));
break;
case self::CONFIG_LOCALIZATION:
- Prado::using('System.I18N.Translation');
- $component->$setter(localize(trim($value[1])));
+ $component->$setter(Prado::localize($value[1]));
break;
default: // an error if reaching here
break;
@@ -532,12 +539,22 @@ class TTemplate extends TApplicationComponent implements ITemplate if($matchStart>$textStart)
$tpl[$c++]=array($container,substr($input,$textStart,$matchStart-$textStart));
$textStart=$matchEnd+1;
+ $literal=trim(THttpUtility::htmlDecode($match[5][0]));
if($str[2]==='=') // expression
- $tpl[$c++]=array($container,'TExpression',array('Expression'=>THttpUtility::htmlDecode($match[5][0])));
+ $tpl[$c++]=array($container,array(TCompositeLiteral::TYPE_EXPRESSION,$literal));
else if($str[2]==='%') // statements
- $tpl[$c++]=array($container,'TStatements',array('Statements'=>THttpUtility::htmlDecode($match[5][0])));
- else
- $tpl[$c++]=array($container,'TLiteral',array('Text'=>$this->parseAttribute($str)));
+ $tpl[$c++]=array($container,array(TCompositeLiteral::TYPE_STATEMENTS,$literal));
+ else if($str[2]==='#')
+ $tpl[$c++]=array($container,array(TCompositeLiteral::TYPE_DATABINDING,$literal));
+ else if($str[2]==='$')
+ $tpl[$c++]=array($container,array(TCompositeLiteral::TYPE_EXPRESSION,"\$this->getApplication()->getParameters()->itemAt('$literal')"));
+ else if($str[2]==='~')
+ $tpl[$c++]=array($container,array(TCompositeLiteral::TYPE_EXPRESSION,"\$this->publishFilePath('$this->_contextPath/$literal')"));
+ else if($str[2]==='[')
+ {
+ $literal=trim(substr($literal,0,strlen($literal)-1));
+ $tpl[$c++]=array($container,array(TCompositeLiteral::TYPE_EXPRESSION,"Prado::localize('$literal')"));
+ }
}
else if(strpos($str,'<prop:')===0) // opening property
{
@@ -618,7 +635,45 @@ class TTemplate extends TApplicationComponent implements ITemplate else
throw new TConfigurationException('template_format_invalid',$this->_tplFile,$line,$e->getMessage());
}
- return $tpl;
+
+ // optimization by merging consecutive strings, expressions, statements and bindings
+ $objects=array();
+ $parent=null;
+ $merged=array();
+ foreach($tpl as $id=>$object)
+ {
+ if(isset($object[2]) || $object[0]!==$parent)
+ {
+ if($parent!==null)
+ {
+ if(count($merged[1])===1 && is_string($merged[1][0]))
+ $objects[$id-1]=array($merged[0],$merged[1][0]);
+ else
+ $objects[$id-1]=array($merged[0],new TCompositeLiteral($merged[1]));
+ }
+ if(isset($object[2]))
+ {
+ $parent=null;
+ $objects[$id]=$object;
+ }
+ else
+ {
+ $parent=$object[0];
+ $merged=array($parent,array($object[1]));
+ }
+ }
+ else
+ $merged[1][]=$object[1];
+ }
+ if($parent!==null)
+ {
+ if(count($merged[1])===1 && is_string($merged[1][0]))
+ $objects[$id]=array($merged[0],$merged[1][0]);
+ else
+ $objects[$id]=array($merged[0],new TCompositeLiteral($merged[1]));
+ }
+ $tpl=$objects;
+ return $objects;
}
/**
@@ -768,4 +823,95 @@ class TTemplate extends TApplicationComponent implements ITemplate }
}
+/**
+ * TCompositeLiteral class
+ *
+ * TCompositeLiteral is used internally by {@link TTemplate} for representing
+ * consecutive static strings, expressions and statements.
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @version $Revision: $ $Date: $
+ * @package System.Web.UI
+ * @since 3.0
+ */
+class TCompositeLiteral extends TComponent implements IRenderable, IBindable
+{
+ const TYPE_EXPRESSION=0;
+ const TYPE_STATEMENTS=1;
+ const TYPE_DATABINDING=2;
+ private $_container=null;
+ private $_items=array();
+ private $_expressions=array();
+ private $_statements=array();
+ private $_bindings=array();
+
+ /**
+ * Constructor.
+ * @param array list of items to be represented by TCompositeLiteral
+ */
+ public function __construct($items)
+ {
+ $this->_items=array();
+ $this->_expressions=array();
+ $this->_statements=array();
+ foreach($items as $id=>$item)
+ {
+ if(is_array($item))
+ {
+ if($item[0]===self::TYPE_EXPRESSION)
+ $this->_expressions[$id]=$item[1];
+ else if($item[0]===self::TYPE_STATEMENTS)
+ $this->_statements[$id]=$item[1];
+ else if($item[0]===self::TYPE_DATABINDING)
+ $this->_bindings[$id]=$item[1];
+ $this->_items[$id]='';
+ }
+ else
+ $this->_items[$id]=$item;
+ }
+ }
+
+ /**
+ * @return TComponent container of this component. It serves as the evaluation context of expressions and statements.
+ */
+ public function getContainer()
+ {
+ return $this->_container;
+ }
+
+ /**
+ * @param TComponent container of this component. It serves as the evaluation context of expressions and statements.
+ */
+ public function setContainer(TComponent $value)
+ {
+ $this->_container=$value;
+ }
+
+ /**
+ * Renders the content stored in this component.
+ * This method is required by {@link IRenderable}
+ * @param ITextWriter
+ */
+ public function render($writer)
+ {
+ $context=$this->_container===null?$this:$this->_container;
+ foreach($this->_expressions as $id=>$expression)
+ $this->_items[$id]=$context->evaluateExpression($expression);
+ foreach($this->_statements as $id=>$statement)
+ $this->_items[$id]=$context->evaluateStatements($statement);
+ $writer->write(implode('',$this->_items));
+ }
+
+ /**
+ * Performs databindings.
+ * This method is required by {@link IBindable}
+ */
+ public function dataBind()
+ {
+ $context=$this->_container===null?$this:$this->_container;
+ foreach($this->_bindings as $id=>$binding)
+ $this->_items[$id]=$context->evaluateExpression($binding);
+ }
+}
+
?>
\ No newline at end of file |