diff options
Diffstat (limited to 'framework/Web/UI/TTemplate.php')
| -rw-r--r-- | framework/Web/UI/TTemplate.php | 546 |
1 files changed, 0 insertions, 546 deletions
diff --git a/framework/Web/UI/TTemplate.php b/framework/Web/UI/TTemplate.php deleted file mode 100644 index 5d361119..00000000 --- a/framework/Web/UI/TTemplate.php +++ /dev/null @@ -1,546 +0,0 @@ -<?php
-/**
- * TTemplate class file.
- *
- * @author Qiang Xue <qiang.xue@gmail.com>
- * @link http://www.pradosoft.com/
- * @copyright Copyright © 2005 PradoSoft
- * @license http://www.pradosoft.com/license/
- * @version $Revision: $ $Date: $
- * @package System.Web.UI
- */
-
-/**
- * TTemplate implements PRADO template parsing logic.
- * A TTemplate object represents a parsed PRADO control template.
- * It can instantiate the template as child controls of a specified control.
- * The template format is like HTML, with the following special tags introduced,
- * - component tags: a component tag represents the configuration of a component.
- * The tag name is in the format of com:ComponentType, where ComponentType is the component
- * class name. Component tags must be well-formed. Attributes of the component tag
- * are treated as either property initial values, event handler attachment, or regular
- * tag attributes.
- * - property tags: property tags are used to set large block of attribute values.
- * The property tag name is in the format of prop:AttributeName, where AttributeName
- * 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 <% properyt 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 >
- * - 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.
- *
- * Tags are not required to be well-formed.
- *
- * @author Qiang Xue <qiang.xue@gmail.com>
- * @version $Revision: $ $Date: $
- * @package System.Web.UI
- * @since 3.0
- */
-class TTemplate extends TComponent implements ITemplate
-{
- /**
- * '<!.*?!>' - template comments
- * '<!--.*?-->' - HTML comments
- * '<\/?com:([\w\.]+)((?:\s*[\w\.]+=\'.*?\'|\s*[\w\.]+=".*?"|\s*[\w\.]+=<%.*?%>)*)\s*\/?>' - component tags
- * '<\/?prop:([\w\.]+)\s*>' - property tags
- * '<%@\s*(\w+)((?:\s*[\w\.]+=\'.*?\'|\s*[\w\.]+=".*?")*)\s*%>' - directives
- * '<%=?(.*?)%>' - expressions
- */
- const REGEX_RULES='/<!.*?!>|<!--.*?-->|<\/?com:([\w\.]+)((?:\s*[\w\.]+=\'.*?\'|\s*[\w\.]+=".*?"|\s*[\w\.]+=<%.*?%>)*)\s*\/?>|<\/?prop:([\w\.]+)\s*>|<%@\s*((?:\s*[\w\.]+=\'.*?\'|\s*[\w\.]+=".*?")*)\s*%>|<%=?(.*?)%>/msS';
-
- /**
- * @var array list of component tags and strings
- */
- private $_tpl=array();
- /**
- * @var array list of directive settings
- */
- private $_directive=array();
- /**
- * @var string context path
- */
- private $_contextPath;
-
- /**
- * Constructor.
- * The template will be parsed after construction.
- * @param string the template string
- */
- public function __construct($template,$contextPath)
- {
- $this->_contextPath=$contextPath;
- $this->parse($template);
- }
-
- /**
- * @return array name-value pairs declared in the directive
- */
- public function getDirective()
- {
- return $this->_directive;
- }
-
- /**
- * Instantiates the template.
- * Content in the template will be instantiated as components and text strings
- * and passed to the specified parent control.
- * @param TControl the parent control
- * @throws TTemplateRuntimeException if an error is encountered during the instantiation.
- */
- public function instantiateIn($tplControl)
- {
- $page=$tplControl->getPage();
- $assetManager=$page->getService()->getAssetManager();
- $controls=array();
- foreach($this->_tpl as $key=>$object)
- {
- if(isset($object[2])) // component
- {
- if(strpos($object[1],'.')===false)
- {
- if(class_exists($object[1],false))
- $component=new $object[1];
- else
- {
- include_once($object[1].Prado::CLASS_FILE_EXT);
- if(class_exists($object[1],false))
- $component=new $object[1];
- else
- throw new TTemplateRuntimeException('template_component_unknown',$object[1]);
- }
- }
- else
- $component=Prado::createComponent($object[1]);
- if($component instanceof TControl)
- {
- $controls[$key]=$component;
- $component->setTemplateControl($tplControl);
- if(isset($object[2]['id']))
- $tplControl->registerObject($object[2]['id'],$component);
- if(isset($object[2]['skinid']))
- {
- $component->setSkinID($object[2]['skinid']);
- unset($object[2]['skinid']);
- }
- $component->applyStyleSheetSkin($page);
- // apply attributes
- foreach($object[2] as $name=>$value)
- {
- if($component->hasEvent($name)) // is an event
- {
- if(is_string($value))
- {
- if(strpos($value,'.')===false)
- $component->attachEventHandler($name,array($component,'TemplateControl.'.$value));
- else
- $component->attachEventHandler($name,array($component,$value));
- }
- else
- throw new TTemplateRuntimeException('template_event_invalid',$name);
- }
- else if(strpos($name,'.')===false) // is simple property or custom attribute
- {
- if($component->hasProperty($name))
- {
- if($component->canSetProperty($name))
- {
- $setter='set'.$name;
- if(is_string($value))
- $component->$setter($value);
- else if($value[0]===0)
- $component->bindProperty($name,$value[1]);
- else if($value[0]===1)
- $component->$setter($component->evaluateExpression($value[1]));
- else // url
- {
- $url=$assetManager->publishFilePath($this->_contextPath.'/'.$value[1]);
- $component->$setter($url);
- }
- }
- else
- throw new TTemplateRuntimeException('property_read_only',get_class($component).'.'.$name);
- }
- else if($component->getAllowCustomAttributes())
- {
- if(is_array($value))
- {
- if($value[0]===1)
- $value=$component->evaluateExpression($value[1]);
- else if($value[0]===2)
- $value=$assetManager->publishFilePath($this->_contextPath.'/'.$value[1]);
- else
- throw new TTemplateRuntimeException('template_attribute_unbindable',$name);
- }
- $component->getAttributes()->add($name,$value);
- }
- else
- throw new TTemplateRuntimeException('property_not_defined',get_class($component).'.'.$name);
- }
- else // complex property
- {
- if(is_string($value))
- $component->setSubProperty($name,$value);
- else if($value[0]===0)
- $component->bindProperty($name,$value[1]);
- else if($value[0]===1)
- $component->setSubProperty($component->evaluateExpression($value[1]));
- else
- {
- $url=$assetManager->publishFilePath($this->_contextPath.'/'.$value[1]);
- $component->$setter($url);
- }
- }
- }
- $parent=isset($controls[$object[0]])?$controls[$object[0]]:$tplControl;
- $component->createdOnTemplate($parent);
- }
- else if($component instanceof TComponent)
- {
- if(isset($object[2]['id']))
- {
- $tplControl->registerObject($object[2]['id'],$component);
- if(!$component->hasProperty('id'))
- unset($object[2]['id']);
- }
- foreach($object[2] as $name=>$value)
- {
- if($component->hasProperty($name))
- {
- if($component->canSetProperty($name))
- {
- $setter='set'.$name;
- if(is_string($value))
- $component->$setter($value);
- else if($value[0]===1)
- $component->$setter($component->evaluateExpression($value[1]));
- else if($value[0]===2)
- {
- $url=$assetManager->publishFilePath($this->_contextPath.'/'.$value[1]);
- $component->$setter($url);
- }
- else
- throw new TTemplateRuntimeException('template_component_property_unbindable',get_class($component),$name);
- }
- else
- throw new TTemplateRuntimeException('property_read_only',get_class($component).'.'.$name);
- }
- else
- throw new TTemplateRuntimeException('property_not_defined',get_class($component).'.'.$name);
- }
- $parent=isset($controls[$object[0]])?$controls[$object[0]]:$tplControl;
- $parent->addParsedObject($component);
- }
- else
- throw new TTemplateRuntimeException('must_be_component',$object[1]);
- }
- else // string
- {
- if(isset($controls[$object[0]]))
- $controls[$object[0]]->addParsedObject($object[1]);
- else
- $tplControl->addParsedObject($object[1]);
- }
- }
- }
-
- /**
- * NOTE, this method is currently not used!!!
- * Processes an attribute set in a component tag.
- * The attribute will be checked to see if it represents a property or an event.
- * If so, the value will be set to the property, or the value will be treated
- * as an event handler and attached to the event.
- * Otherwise, it will be added as regualr attribute if the control allows so.
- * @param TComponent the component represented by the tag
- * @param string attribute name
- * @param string attribute value
- * @throws TTemplateRuntimeException
- */
- public static function applyAttribute($component,$name,$value)
- {
- $target=$component;
- if(strpos($name,'.')===false)
- $property=$name;
- else
- {
- $names=explode('.',$name);
- $property=array_pop($names);
- foreach($names as $p)
- {
- if(($target instanceof TComponent) && $target->canGetProperty($p))
- {
- $getter='get'.$p;
- $target=$target->$getter();
- }
- else
- throw new TTemplateRuntimeException('invalid_subproperty',$name);
- }
- }
- if($target instanceof TControl)
- {
- if($target->hasProperty($property))
- {
- $setter='set'.$property;
- if(is_string($value))
- $target->$setter($value);
- else if($value[0]===0)
- $target->bindProperty($property,$value[1]);
- else
- {
- $target->$setter($target->evaluateExpression($value[1]));
- }
- }
- else if($target->hasEvent($property))
- {
- if(strpos($value,'.')===false)
- $target->attachEventHandler($property,'TemplateControl.'.$value);
- else
- $target->attachEventHandler($property,$value);
- }
- else if($target->getAllowCustomAttributes())
- $target->getAttributes()->add($property,$value);
- else
- throw new TTemplateRuntimeException('property_not_defined',get_class($target).'.'.$property);
- }
- else if($target instanceof TComponent)
- {
- $setter='set'.$property;
- $target->$setter($value);
- }
- else
- throw new TTemplateRuntimeException('must_extend_TComponent',get_class($target));
- }
-
- /**
- * Parses a template string.
- *
- * This template parser recognizes five types of data:
- * regular string, well-formed component tags, well-formed property tags, directives, and expressions.
- *
- * The parsing result is returned as an array. Each array element can be of three types:
- * - a string, 0: container index; 1: string content;
- * - a component tag, 0: container index; 1: component type; 2: attributes (name=>value pairs)
- * If a directive is found in the template, it will be parsed and can be
- * retrieved via {@link getDirective}, which returns an array consisting of
- * name-value pairs in the directive.
- *
- * Note, attribute names are treated as case-insensitive and will be turned into lower cases.
- * Component and directive types are case-sensitive.
- * Container index is the index to the array element that stores the container object.
- * If an object has no container, its container index is -1.
- *
- * @param string the template string
- * @return array the parsed result
- * @throws TTemplateParsingException if a parsing error is encountered
- */
- protected function &parse($input)
- {
- $tpl=&$this->_tpl;
- $n=preg_match_all(self::REGEX_RULES,$input,$matches,PREG_SET_ORDER|PREG_OFFSET_CAPTURE);
- $expectPropEnd=false;
- $textStart=0;
- $stack=array();
- $container=-1;
- $c=0;
- for($i=0;$i<$n;++$i)
- {
- $match=&$matches[$i];
- $str=$match[0][0];
- $matchStart=$match[0][1];
- $matchEnd=$matchStart+strlen($str)-1;
- if(strpos($str,'<com:')===0) // opening component tag
- {
- if($expectPropEnd)
- continue;
- if($matchStart>$textStart)
- $tpl[$c++]=array($container,substr($input,$textStart,$matchStart-$textStart));
- $textStart=$matchEnd+1;
- $type=$match[1][0];
- $attributes=$this->parseAttributes($match[2][0]);
- $tpl[$c++]=array($container,$type,$attributes);
- if($str[strlen($str)-2]!=='/') // open tag
- {
- array_push($stack,$type);
- $container=$c-1;
- }
- }
- else if(strpos($str,'</com:')===0) // closing component tag
- {
- if($expectPropEnd)
- continue;
- if($matchStart>$textStart)
- $tpl[$c++]=array($container,substr($input,$textStart,$matchStart-$textStart));
- $textStart=$matchEnd+1;
- $type=$match[1][0];
-
- if(empty($stack))
- {
- $line=count(explode("\n",substr($input,0,$matchEnd+1)));
- throw new TTemplateParsingException('unexpected_closing_tag',$line,"</com:$type>");
- }
-
- $name=array_pop($stack);
- if($name!==$type)
- {
- if($name[0]==='@')
- $tag='</prop:'.substr($name,1).'>';
- else
- $tag='</com:'.$name.'>';
- $line=count(explode("\n",substr($input,0,$matchEnd+1)));
- throw new TTemplateParsingException('expecting_closing_tag',$line,$tag);
- }
- $container=$tpl[$container][0];
- }
- else if(strpos($str,'<%@')===0) // directive
- {
- if($expectPropEnd)
- continue;
- if($matchStart>$textStart)
- $tpl[$c++]=array($container,substr($input,$textStart,$matchStart-$textStart));
- $textStart=$matchEnd+1;
- if(isset($tpl[0]))
- {
- $line=count(explode("\n",substr($input,0,$matchEnd+1)));
- throw new TTemplateParsingException('nonunique_template_directive',$line);
- }
- $this->_directive=$this->parseAttributes($match[4][0]);
- }
- else if(strpos($str,'<%')===0) // expression
- {
- if($expectPropEnd)
- continue;
- if($matchStart>$textStart)
- $tpl[$c++]=array($container,substr($input,$textStart,$matchStart-$textStart));
- $textStart=$matchEnd+1;
- if($str[2]==='=')
- $tpl[$c++]=array($container,'TExpression',array('Expression'=>$match[5][0]));
- else
- $tpl[$c++]=array($container,'TStatements',array('Statements'=>$match[5][0]));
- }
- else if(strpos($str,'<prop:')===0) // opening property
- {
- $prop=strtolower($match[3][0]);
- array_push($stack,'@'.$prop);
- if(!$expectPropEnd)
- {
- if($matchStart>$textStart)
- $tpl[$c++]=array($container,substr($input,$textStart,$matchStart-$textStart));
- $textStart=$matchEnd+1;
- $expectPropEnd=true;
- }
- }
- else if(strpos($str,'</prop:')===0) // closing property
- {
- $prop=strtolower($match[3][0]);
- if(empty($stack))
- {
- $line=count(explode("\n",substr($input,0,$matchEnd+1)));
- throw new TTemplateParsingException('unexpected_closing_tag',$line,"</prop:$prop>");
- }
- $name=array_pop($stack);
- if($name!=='@'.$prop)
- {
- if($name[0]==='@')
- $tag='</prop:'.substr($name,1).'>';
- else
- $tag='</com:'.$name.'>';
- $line=count(explode("\n",substr($input,0,$matchEnd+1)));
- throw new TTemplateParsingException('expecting_closing_tag',$line,$tag);
- }
- if(($last=count($stack))<1 || $stack[$last-1][0]!=='@')
- {
- if($matchStart>$textStart && $container>=0)
- {
- $value=substr($input,$textStart,$matchStart-$textStart);
- if(preg_match('/^<%.*?%>$/msS',$value))
- {
- if($value[2]==='#') // databind
- $tpl[$container][2][$prop]=array(0,substr($value,3,strlen($value)-5));
- else if($value[2]==='=') // a dynamic initialization
- $tpl[$container][2][$prop]=array(1,substr($value,3,strlen($value)-5));
- else
- $tpl[$container][2][$prop]=$value;
- }
- else
- $tpl[$container][2][$prop]=$value;
- $textStart=$matchEnd+1;
- }
- $expectPropEnd=false;
- }
- }
- else if(strpos($str,'<!--')===0) // HTML comments
- {
- $state=0;
- }
- else if(strpos($str,'<!')===0) // template comments
- {
- if($expectPropEnd)
- {
- $line=count(explode("\n",substr($input,0,$matchEnd+1)));
- throw new TTemplateParsingException('no_comments_in_property',$line);
- }
- if($matchStart>$textStart)
- $tpl[$c++]=array($container,substr($input,$textStart,$matchStart-$textStart));
- $textStart=$matchEnd+1;
- }
- else
- throw new TTemplateParsingException('unexpected_matching',$match);
- }
- if(!empty($stack))
- {
- $name=array_pop($stack);
- if($name[0]==='@')
- $tag='</prop:'.substr($name,1).'>';
- else
- $tag='</com:'.$name.'>';
- $line=count(explode("\n",substr($input,0,$matchEnd+1)));
- throw new TTemplateParsingException('expecting_closing_tag',$line,$tag);
- }
- if($textStart<strlen($input))
- $tpl[$c++]=array($container,substr($input,$textStart));
- return $tpl;
- }
-
- /**
- * Parses the attributes of a tag from a string.
- * @param string the string to be parsed.
- * @return array attribute values indexed by names.
- */
- protected function parseAttributes($str)
- {
- if($str==='')
- return array();
- $pattern='/([\w\.]+)=(\'.*?\'|".*?"|<%.*?%>)/msS';
- $attributes=array();
- $n=preg_match_all($pattern,$str,$matches,PREG_SET_ORDER);
- for($i=0;$i<$n;++$i)
- {
- $name=strtolower($matches[$i][1]);
- $value=$matches[$i][2];
- if($value[0]==='\'' || $value[0]==='"')
- {
- $value=substr($value,1,strlen($value)-2);
- if(!preg_match('/(<%#.*?%>|<%=.*?%>|<%~.*?%>)/msS',$value))
- {
- $attributes[$name]=$value;
- continue;
- }
- }
- if($value[0]==='<')
- {
- if($value[2]==='#') // databind
- $attributes[$name]=array(0,substr($value,3,strlen($value)-5));
- else if($value[2]==='=') // a dynamic initialization
- $attributes[$name]=array(1,substr($value,3,strlen($value)-5));
- else if($value[2]==='~') // a URL
- $attributes[$name]=array(2,trim(substr($value,3,strlen($value)-5)));
- else
- $attributes[$name]=substr($value,2,strlen($value)-4);
- }
- }
- return $attributes;
- }
-}
-
-?>
\ No newline at end of file |