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CPortlet

Package zii.widgets
Inheritance class CPortlet » CWidget » CBaseController » CComponent
Since 1.1
Source Code framework/zii/widgets/CPortlet.php
CPortlet is the base class for portlet widgets.

A portlet displays a fragment of content, usually in terms of a block on the side bars of a Web page.

To specify the content of the portlet, override the renderContent method, or insert the content code between the CController::beginWidget and CController::endWidget calls. For example,

<?php $this->beginWidget('zii.widgets.CPortlet'); ?>
    ...insert content here...
<?php $this->endWidget(); ?>


A portlet also has an optional title. One may also override renderDecoration to further customize the decorative display of a portlet (e.g. adding min/max buttons).

Public Properties

Hide inherited properties

PropertyTypeDescriptionDefined By
actionPrefix string the prefix to the IDs of the actions. CWidget
contentCssClass string the CSS class for the content container tag. CPortlet
controller CController Returns the controller that this widget belongs to. CWidget
decorationCssClass string the CSS class for the decoration container tag. CPortlet
hideOnEmpty boolean whether to hide the portlet when the body content is empty. CPortlet
htmlOptions array the HTML attributes for the portlet container tag. CPortlet
id string Returns the ID of the widget or generates a new one if requested. CWidget
owner CBaseController Returns the owner/creator of this widget. CWidget
skin mixed the name of the skin to be used by this widget. CWidget
tagName string the tag name for the portlet container tag. CPortlet
title string the title of the portlet. CPortlet
titleCssClass string the CSS class for the portlet title tag. CPortlet
viewPath string Returns the directory containing the view files for this widget. CWidget

Public Methods

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MethodDescriptionDefined By
__call() Calls the named method which is not a class method. CComponent
__construct() Constructor. CWidget
__get() Returns a property value, an event handler list or a behavior based on its name. CComponent
__isset() Checks if a property value is null. CComponent
__set() Sets value of a component property. CComponent
__unset() Sets a component property to be null. CComponent
actions() Returns a list of actions that are used by this widget. CWidget
asa() Returns the named behavior object. CComponent
attachBehavior() Attaches a behavior to this component. CComponent
attachBehaviors() Attaches a list of behaviors to the component. CComponent
attachEventHandler() Attaches an event handler to an event. CComponent
beginCache() Begins fragment caching. CBaseController
beginClip() Begins recording a clip. CBaseController
beginContent() Begins the rendering of content that is to be decorated by the specified view. CBaseController
beginWidget() Creates a widget and executes it. CBaseController
canGetProperty() Determines whether a property can be read. CComponent
canSetProperty() Determines whether a property can be set. CComponent
createWidget() Creates a widget and initializes it. CBaseController
detachBehavior() Detaches a behavior from the component. CComponent
detachBehaviors() Detaches all behaviors from the component. CComponent
detachEventHandler() Detaches an existing event handler. CComponent
disableBehavior() Disables an attached behavior. CComponent
disableBehaviors() Disables all behaviors attached to this component. CComponent
enableBehavior() Enables an attached behavior. CComponent
enableBehaviors() Enables all behaviors attached to this component. CComponent
endCache() Ends fragment caching. CBaseController
endClip() Ends recording a clip. CBaseController
endContent() Ends the rendering of content. CBaseController
endWidget() Ends the execution of the named widget. CBaseController
evaluateExpression() Evaluates a PHP expression or callback under the context of this component. CComponent
getController() Returns the controller that this widget belongs to. CWidget
getEventHandlers() Returns the list of attached event handlers for an event. CComponent
getId() Returns the ID of the widget or generates a new one if requested. CWidget
getOwner() Returns the owner/creator of this widget. CWidget
getViewFile() Looks for the view script file according to the view name. CWidget
getViewPath() Returns the directory containing the view files for this widget. CWidget
hasEvent() Determines whether an event is defined. CComponent
hasEventHandler() Checks whether the named event has attached handlers. CComponent
hasProperty() Determines whether a property is defined. CComponent
init() Initializes the widget. CPortlet
raiseEvent() Raises an event. CComponent
render() Renders a view. CWidget
renderFile() Renders a view file. CBaseController
renderInternal() Renders a view file. CBaseController
run() Renders the content of the portlet. CPortlet
setId() Sets the ID of the widget. CWidget
widget() Creates a widget and executes it. CBaseController

Protected Methods

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MethodDescriptionDefined By
renderContent() Renders the content of the portlet. CPortlet
renderDecoration() Renders the decoration for the portlet. CPortlet

Property Details

contentCssClass property
public string $contentCssClass;

the CSS class for the content container tag. Defaults to 'portlet-content'.

decorationCssClass property
public string $decorationCssClass;

the CSS class for the decoration container tag. Defaults to 'portlet-decoration'.

hideOnEmpty property (available since v1.1.4)
public boolean $hideOnEmpty;

whether to hide the portlet when the body content is empty. Defaults to true.

htmlOptions property
public array $htmlOptions;

the HTML attributes for the portlet container tag.

tagName property
public string $tagName;

the tag name for the portlet container tag. Defaults to 'div'.

title property
public string $title;

the title of the portlet. Defaults to null. When this is not set, Decoration will not be displayed. Note that the title will not be HTML-encoded when rendering.

titleCssClass property
public string $titleCssClass;

the CSS class for the portlet title tag. Defaults to 'portlet-title'.

Method Details

init() method
public void init()
Source Code: framework/zii/widgets/CPortlet.php#75 (show)
public function init()
{
    
ob_start();
    
ob_implicit_flush(false);

    if(isset(
$this->htmlOptions['id']))
        
$this->id=$this->htmlOptions['id'];
    else
        
$this->htmlOptions['id']=$this->id;
    echo 
CHtml::openTag($this->tagName,$this->htmlOptions)."\n";
    
$this->renderDecoration();
    echo 
"<div class=\"{$this->contentCssClass}\">\n";

    
$this->_openTag=ob_get_contents();
    
ob_clean();
}

Initializes the widget. This renders the open tags needed by the portlet. It also renders the decoration, if any.

renderContent() method
protected void renderContent()
Source Code: framework/zii/widgets/CPortlet.php#125 (show)
protected function renderContent()
{
}

Renders the content of the portlet. Child classes should override this method to render the actual content.

renderDecoration() method
protected void renderDecoration()
Source Code: framework/zii/widgets/CPortlet.php#111 (show)
protected function renderDecoration()
{
    if(
$this->title!==null)
    {
        echo 
"<div class=\"{$this->decorationCssClass}\">\n";
        echo 
"<div class=\"{$this->titleCssClass}\">{$this->title}</div>\n";
        echo 
"</div>\n";
    }
}

Renders the decoration for the portlet. The default implementation will render the title if it is set.

run() method
public void run()
Source Code: framework/zii/widgets/CPortlet.php#95 (show)
public function run()
{
    
$this->renderContent();
    
$content=ob_get_clean();
    if(
$this->hideOnEmpty && trim($content)==='')
        return;
    echo 
$this->_openTag;
    echo 
$content;
    echo 
"</div>\n";
    echo 
CHtml::closeTag($this->tagName);
}

Renders the content of the portlet.

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