Constructor
new ojRowExpander()
- Source:
- ojrowexpander/ojrowexpander.js, line 1
Fields
-
#context :Object
-
The context object obtained from the column renderer (Table) or cell renderer (DataGrid)
- Default Value:
null
- Source:
- ojrowexpander/ojrowexpander.js, line 22
-
#contextMenu :Object
-
JQ selector identifying the JET Menu that the component should launch as a context menu on right-click or Shift-F10. If specified, the browser's native context menu will be replaced by the specified JET Menu.
To specify a JET context menu on a DOM element that is not a JET component, see the
ojContextMenu
binding.To make the page semantically accurate from the outset, applications are encouraged to specify the context menu via the standard HTML5 syntax shown in the below example. When the component is initialized, the context menu thus specified will be set on the component.
The JET Menu should be initialized before any component using it as a context menu.
- Default Value:
null
- Inherited From:
- Source:
- ojcomponentcore/jqueryui-base.js, line 51
Examples
Initialize a JET component with a context menu:
// via recommended HTML5 syntax: <div id="myComponent" contextmenu="myMenu" data-bind="ojComponent: { ... }> // via JET initializer (less preferred) : $( ".selector" ).ojFoo({ "contextMenu": "#myMenu" });
Get or set the
contextMenu
option, after initialization:// getter var menu = $( ".selector" ).ojFoo( "option", "contextMenu" ); // setter $( ".selector" ).ojFoo( "option", "contextMenu", ".my-marker-class" );
Set a JET context menu on an ordinary HTML element:
<a href="#" id="myAnchor" contextmenu="myMenu" data-bind="ojContextMenu: {}">Some text
-
#indent :number
-
The number of pixels to indent for each level
- Default Value:
10
- Source:
- ojrowexpander/ojrowexpander.js, line 33
-
#rootAttributes :Object|undefined
-
Attributes specified here will be set on the component's root DOM element at creation time. This is particularly useful for components like Dialog that wrap themselves in a root element at creation time.
The specified
class
andstyle
are appended to the current class and style, respectively. All other attributes overwrite any existing value.Setting this option after component creation has no effect.
- Default Value:
undefined
- Inherited From:
- Source:
- ojcomponentcore/jqueryui-base.js, line 77
Example
Initialize a JET component, specifying a set of attributes to be set on the component's root DOM element:
$( ".selector" ).ojFoo({ "rootAttributes": { 'id': 'myId', 'style': 'max-width:100%; color:blue;', 'class': 'my-class' }});
Events
-
#collapse
-
Triggered when a collapse is performed on the row expander
- Source:
- ojrowexpander/ojrowexpander.js, line 69
Properties:
Name Type Description event
Event jQuery
event objectExamples
Initialize the row expander with the
collapse
callback specified:$( ".selector" ).ojRowExpander({ "collapse": function( event, ui ) {} });
Bind an event listener to the
ojcollapse
event:$( ".selector" ).on( "ojcollapse", function( event, ui ) {} );
-
#expand
-
Triggered when a expand is performed on the row expander
- Source:
- ojrowexpander/ojrowexpander.js, line 51
Properties:
Name Type Description event
Event jQuery
event objectExamples
Initialize the row expander with the
expand
callback specified:$( ".selector" ).ojRowExpander({ "expand": function( event, ui ) {} });
Bind an event listener to the
ojexpand
event:$( ".selector" ).on( "ojexpand", function( event, ui ) {} );
Methods
-
#getNodeBySubId(locator) → {Element|null}
-
Return the subcomponent node represented by the documented locator attribute values.
Parameters:
Name Type Description locator
Object An Object containing at minimum a subId property whose value is a string, documented by the component, that allows the component to look up the subcomponent associated with that string. It contains: component: optional component name - in the future there may be more than one component contained within a page element
subId: the string, documented by the component, that the component expects in getNodeBySubId to locate a particular subcomponent.
- Inherited From:
- Source:
- ojcomponentcore/jqueryui-base.js, line 526
Returns:
the subcomponent located by the subId string passed in locator, if found.- Type
- Element | null
-
#getSubIdByNode(node) → {string|null}
-
Return the subId string for the given child DOM node
Parameters:
Name Type Description node
Element child DOM node - Inherited From:
- Source:
- ojcomponentcore/jqueryui-base.js, line 548
Returns:
- the subId for the DOM node or null when none is found- Type
- string | null
-
#option(optionName, value) → {Object|undefined}
-
This method has several overloads, which gets and set component options.
The first overload accepts a single
optionName
param as a string, and returns the current value of that option.The second overload accepts two params, an
optionName
string and a new value to which that option will be set.The third overload accepts no params, and returns a map of key/value pairs representing all the component options and their values.
The fourth overload accepts a single map of option-value pairs to set on the component.
Parameters:
Name Type Argument Description optionName
string | Object <optional>
the option name (string, first two overloads), or the map (Object, last overload). Omitted in the third overload. value
Object <optional>
a value to set for the option. Second overload only. - Inherited From:
- Source:
- ojcomponentcore/jqueryui-base.js, line 600
Returns:
The getter overloads return the retrieved value(s). When called via the public jQuery syntax, the setter overloads return the object on which they were called, to facilitate method chaining.- Type
- Object | undefined
Examples
First overload: get one option:
var isDisabled = $( ".selector" ).ojFoo( "option", "disabled" ); // Foo is Button, Menu, etc.
Second overload: set one option:
$( ".selector" ).ojFoo( "option", "disabled", true ); // Foo is Button, Menu, etc.
Third overload: get all options:
var options = $( ".selector" ).ojFoo( "option" ); // Foo is Button, Menu, etc.
Fourth overload: set one or more options:
$( ".selector" ).ojFoo( "option", { disabled: true } ); // Foo is Button, Menu, etc.
-
#refresh()
-
Refresh the row expander having made external modifications
This method does not accept any arguments.
- Source:
- ojrowexpander/ojrowexpander.js, line 168
Example
Invoke the
refresh
method:$( ".selector" ).ojRowExpander( "refresh" );
Non-public Methods
-
<protected> #_AfterCreate()
-
This method is called after
_ComponentCreate
. The JET base component does tasks here that must happen after the component (subclass) has created itself in its override of_ComponentCreate
. Notably, the base component handles therootAttributes
andcontextMenu
options here, since those options operate on the component root node, which for some components is created in their override of_ComponentCreate
.Subclasses should override this method only if they have tasks that must happen after a superclass's implementation of this method, e.g. tasks that must happen after the context menu is set on the component.
Overrides of this method should call
this._super
first.- Inherited From:
- Source:
- ojcomponentcore/jqueryui-base.js, line 292
-
<protected> #_ComponentCreate()
-
All component create-time initialization lives in this method, except the logic that specifically needs to live in
_InitOptions
or_AfterCreate
, per the documentation for those methods. All DOM creation must happen here, since the intent of_AfterCreate
is to contain superclass logic that must run after that DOM is created.Overrides of this method should call
this._super
first.- Inherited From:
- Source:
- ojcomponentcore/jqueryui-base.js, line 266
-
<protected> #_GetReadingDirection() → {string}
-
Determines whether the component is LTR or RTL.
Component responsibilities:
- All components must determine directionality exclusively by calling this protected superclass method. (So that any future updates to the logic can be made in this one place.)
- Components that need to know the directionality must call this method from
_create()
andrefresh()
, and cache the value. - Components should not call this at other times, and should instead use the cached value. (This avoids constant DOM queries, and avoids any future issues if directional islands and component reparenting (e.g. popups) should coexist.)
App responsibilities:
- The app specifies directionality by setting the HTML
"dir"
attribute on the<html>
node. When omitted, the default is"ltr"
. (Per-component directionality / directional islands are not currently supported due to inadequate CSS support.) - As with any DOM change, the app must
refresh()
the component if the directionality changes dynamically. (This provides a hook for component housekeeping, and allows caching.)
- Default Value:
"ltr"
- Inherited From:
- Source:
- ojcomponentcore/jqueryui-base.js, line 888
Returns:
the reading direction, either"ltr"
or"rtl"
- Type
- string
-
<protected> #_GetSavedAttributes(element) → {Object}
-
Gets the saved attributes for the provided element. This is usually the original list of attributes set on the element.
Parameters:
Name Type Description element
Object jQuery selection, should be a single entry - Inherited From:
- Source:
- ojcomponentcore/jqueryui-base.js, line 359
Returns:
savedAttributes - attributes that were saved for this element.- Type
- Object
-
<protected> #_InitOptions()
-
This method is called before
_ComponentCreate
, at which point the component has not yet been rendered. Component options should be initialized in this method, so that their final values are in place when_ComponentCreate
is called.This includes getting option values from the DOM, where applicable, and coercing option values (however derived) to their appropriate data type. No other work should be done in this method. See below for details.
Overrides of this method should call
this._super
first.Usage:
- If the component has an option like
disabled
that can be set from the DOM at create time, then the "get from DOM" logic should live in this method. E.g. a typical override might say "if thedisabled
option still has its initial value ofundefined
(i.e., the option has not been set), then get the DOM property and set it on the option." (See also next bullet.) - For attributes that live on the component's root node, keep in mind that anything specified via
the
rootAttributes
option will not be placed on the DOM until_AfterCreate
. So when getting attributes from the root node, components must first look in therootAttributes
option, and then, only if the attribute is not found there, look on the component root (if it already exists). - For options that, unlike
disabled
, have no corresponding DOM property, and are not otherwise set from the DOM, there is nothing to do in this method. - Do NOT set anything on the DOM in this method (like the resolved
disabled
value, or anyrootAttributes
values). The resolved option values should be set on the DOM later, in_ComponentCreate
, and therootAttributes
values are set inbaseComponent._AfterCreate
.
- Inherited From:
- Source:
- ojcomponentcore/jqueryui-base.js, line 249
- If the component has an option like
-
<protected> #_RestoreAttributes()
-
Restores the saved element's attributes
- Inherited From:
- Source:
- ojcomponentcore/jqueryui-base.js, line 385
-
<protected> #_SaveAttributes(element)
-
Saves the element's attributes within an internal variable to be reset during the destroy function The JSON variable will be held as : [ { "element" : element[i], "attributes" : { attributes[m]["name"] : {"attr": attributes[m]["value"], "prop": $(element[i]).prop(attributes[m]["name"]) } } ]
Parameters:
Name Type Description element
Object jQuery selection to save attributes for - Inherited From:
- Source:
- ojcomponentcore/jqueryui-base.js, line 320
-
<protected> #_SetRootAttributes()
-
Reads the
rootAttributes
option, and sets the root attributes on the component's root DOM element.class
andstyle
are appended to the current class and style, respectively. All other attributes overwrite any existing value.- Inherited From:
- Source:
- ojcomponentcore/jqueryui-base.js, line 103