Class RapidContext.Widget.TableColumn

.Widget.TableColumn(attrs) → {Widget}

The table column widget class. Used to provide a sortable data table column, using a <th> HTML element for the header (and rendering data to <td> HTML elements).

Constructor Summary
	`new TableColumn(attrs) → {Widget}` Creates a new data table column widget.

Method Summary
	`addAll(…child)` Adds one or more children to this widget.
	`addChildNode(child)` Adds a single child DOM node to this widget.
	`addClass(…cls)` Adds the specified CSS class names to this HTML DOM node.
	`blurAll()` Blurs (unfocuses) this DOM node and all relevant child nodes.
	`destroy()` The internal widget destructor function.
	`disable()` Disables this widget if it was previously enabled.
	`emit(event, optsopt) → {boolean}` Dispatches a single event from this DOM node.
	`enable()` Enables this widget if it was previously disabled.
	`getChildNodes() → {Array}` Returns an array with all child DOM nodes.
	`hasClass(…cls) → {boolean}` Checks if this HTML DOM node has the specified CSS class names.
	`hide()` Hides this widget node if it was previously visible.
	`isDisabled() → {boolean}` Checks if this widget is disabled.
	`isHidden() → {boolean}` Checks if this widget node is hidden.
	`off(eventopt, selectoropt, listeneropt) → {Node}` Removes one or more previously attached event listeners.
	`on(event, selectoropt, listener, optsopt) → {Node}` Attaches a listener function for one or more events.
	`once(event, selectoropt, listener, optsopt) → {Node}` Attaches a single event listener function.
	`removeAll()` Removes all children to this widget.
	`removeChildNode(child)` Removes a single child DOM node from this widget.
	`removeClass(…cls)` Removes the specified CSS class names from this HTML DOM node.
	`renderer(td, value, data)` Default cell value renderer.
	`setAttrs(attrs)` Updates the widget or HTML DOM node attributes.
	`setStyle(styles)` Updates the CSS styles of this HTML DOM node.
	`show()` Shows this widget node if it was previously hidden.
	`toggleClass(…cls) → {boolean}` Toggles adding and removing the specified CSS class names to and from this HTML DOM node.
	`uid() → {string}` Returns the unique identifier for this DOM node.

Constructor

new TableColumn(attrs) → {Widget}

Creates a new data table column widget.

Parameters:

Name Type Description

attrs

{Object}

the widget and node attributes

Properties

Name	Type	Attributes	Description
`title`	{string}		the column title
`field`	{string}		the data property name
`type`	{string}	<optional>	the data property type, one of "string", "number", "date", "time", "datetime", "boolean" or "object" (defaults to "string")
`sort`	{string}	<optional>	the sort direction, one of "asc", "desc", "none" (disabled) or null (unsorted)
`maxLength`	{number}	<optional>	the maximum data length, overflow will be displayed as a tooltip
`key`	{boolean}	<optional>	the unique key value flag, only to be set for a single column per table
`tooltip`	{string}	<optional>	the tooltip text to display on the column header
`cellStyle`	{string}	<optional>	the CSS styles or class names to set on the rendered cells
`renderer`	{function}	<optional>	the function that renders the converted data value into a table cell, called as `renderer(<td>, value, data)` with the DOM node, field value and data object as arguments

Returns:

{Widget} the widget DOM node

Examples:

JavaScript

let attrs1 = { field: "id", title: "Identifier", key: true, type: "number" };
let attrs2 = { field: "name", title: "Name", maxLength: 50, sort: "asc" };
let attrs3 = { field: "modified", title: "Last Modified", type: "datetime" };
let col1 = RapidContext.Widget.TableColumn(attrs1);
let col2 = RapidContext.Widget.TableColumn(attrs2);
let col3 = RapidContext.Widget.TableColumn(attrs3);
let exampleTable = RapidContext.Widget.Table({}, col1, col2, col3);

User Interface XML

<Table id="exampleTable" w="50%" h="100%">
  <TableColumn field="id" title="Identifier" key="true" type="number" />
  <TableColumn field="name" title="Name" maxLength="50" sort="asc" />
  <TableColumn field="modified" title="Last Modified" type="datetime" />
</Table>

Source:

RapidContext_Widget_TableColumn.js, line 69

Extends

RapidContext.Widget

Methods

addAll(…child)

Adds one or more children to this widget. This method will flatten any arrays among the arguments and ignores any null or undefined arguments. Any DOM nodes or widgets will be added to the end, and other objects will be converted to a text node first. Subclasses should normally override the addChildNode() method instead of this one, since that is the basis for DOM node insertion.

Parameters:

Name	Type	Attributes	Description
`child`	{string\|Node\|Array}	<repeatable>	the children to add

Inherited From:

RapidContext.Widget#addAll

Source:

RapidContext_Widget.js, line 535

addChildNode(child)

Adds a single child DOM node to this widget. This method is sometimes overridden by child widgets in order to hide or control intermediate DOM nodes required by the widget.

Parameters:

Name	Type	Description
`child`	{Widget\|Node}	the DOM node to add

Inherited From:

RapidContext.Widget#addChildNode

Source:

RapidContext_Widget.js, line 499

addClass(…cls)

Adds the specified CSS class names to this HTML DOM node.

Parameters:

Name	Type	Attributes	Description
`cls`	{string\|Array}	<repeatable>	the CSS class names to add

Inherited From:

RapidContext.Widget#addClass

Source:

RapidContext_Widget.js, line 329

blurAll()

Blurs (unfocuses) this DOM node and all relevant child nodes. This function will recursively blur all <a>, <button>, <input>, <textarea> and <select> child nodes found.

Inherited From:: RapidContext.Widget#blurAll
Source:: RapidContext_Widget.js, line 475

destroy()

The internal widget destructor function. This method should only be called by destroyWidget() and may be overridden by subclasses. By default this method does nothing.

Inherited From:: RapidContext.Widget#destroy
Source:: RapidContext_Widget.js, line 198

disable()

Disables this widget if it was previously enabled. This method is equivalent to calling setAttrs({ disabled: true }).

Inherited From:: RapidContext.Widget#disable
Source:: RapidContext_Widget.js, line 420

emit(event, optsopt) → {boolean}

Dispatches a single event from this DOM node. Also creates a new CustomEvent instance if needed.

Parameters:

Name Type Attributes Description

event {string/Event} the event type name or instance

opts

{Object}

the event options

Properties

Name	Type	Attributes	Default	Description
`async`	{boolean}	<optional>	true	the async dispatch flag
`bubbles`	{boolean}	<optional>		the event bubbles flag
`cancelable`	{boolean}	<optional>		the cancellable event flag
`detail`	{Object}	<optional>		the additional event details

Returns:

{boolean} true if event was async or not cancelled

Inherited From:

RapidContext.UI.Event#emit

Source:

rapidcontext/ui/event.mjs, line 26

enable()

Enables this widget if it was previously disabled. This is equivalent to calling setAttrs({ disabled: false }).

Inherited From:: RapidContext.Widget#enable
Source:: RapidContext_Widget.js, line 412

getChildNodes() → {Array}

Returns an array with all child DOM nodes. Note that the array is a real JavaScript array, not a dynamic NodeList. This method is sometimes overridden by child widgets in order to hide intermediate DOM nodes required by the widget.

Returns:: {Array} the array of child DOM nodes
Inherited From:: RapidContext.Widget#getChildNodes
Source:: RapidContext_Widget.js, line 487

hasClass(…cls) → {boolean}

Checks if this HTML DOM node has the specified CSS class names. Note that more than one CSS class name may be checked, in which case all must be present.

Parameters:

Name	Type	Attributes	Description
`cls`	{string\|Array}	<repeatable>	the CSS class names to check

Returns:

{boolean} true if all CSS classes were present, or false otherwise

Inherited From:

RapidContext.Widget#hasClass

Source:

RapidContext_Widget.js, line 311

hide()

Hides this widget node if it was previously visible. This method is equivalent to calling setAttrs({ hidden: true }). It is safe for all types of widgets, since it only adds the widgetHidden CSS class instead of setting the display style property.

Inherited From:: RapidContext.Widget#hide
Source:: RapidContext_Widget.js, line 466

isDisabled() → {boolean}

Checks if this widget is disabled. This method checks both the "widgetDisabled" CSS class and the disabled property. Changes to the disabled status can be made with enable(), disable() or setAttrs().

Returns:: {boolean} true if the widget is disabled, or false otherwise
Inherited From:: RapidContext.Widget#isDisabled
Source:: RapidContext_Widget.js, line 391

isHidden() → {boolean}

Checks if this widget node is hidden. This method checks for the existence of the widgetHidden CSS class. It does NOT check the actual widget visibility (the display style property set by animations for example).

Returns:: {boolean} true if the widget is hidden, or false otherwise
Inherited From:: RapidContext.Widget#isHidden
Source:: RapidContext_Widget.js, line 433

off(eventopt, selectoropt, listeneropt) → {Node}

Removes one or more previously attached event listeners. If no event details or listeners are specified, all matching handlers are removed.

Parameters:

Name	Type	Attributes	Description
`event`	{string}	<optional>	the event type name (or space separated names)
`selector`	{string}	<optional>	the CSS selector to match for event target
`listener`	{function}	<optional>	the event handler function (or `false`)

Returns:

{Node} the input DOM node (for chaining calls)

Inherited From:

RapidContext.UI.Event#off

Source:

rapidcontext/ui/event.mjs, line 77

on(event, selectoropt, listener, optsopt) → {Node}

Attaches a listener function for one or more events.

Parameters:

Name Type Attributes Description

event {string} the event type name (or space separated names)

selector {string} <optional> the CSS selector to match for event target

listener {function} the event handler function (or false)

opts

{Object}

the event listener options (see addEventListener)

Properties

Name	Type	Attributes	Description
`delay`	{number}	<optional>	an inactivity delay before calling listener

Returns:

{Node} the input DOM node (for chaining calls)

Inherited From:

RapidContext.UI.Event#on

Source:

rapidcontext/ui/event.mjs, line 44

once(event, selectoropt, listener, optsopt) → {Node}

Attaches a single event listener function. The listener will be removed the first time an event is triggered.

Parameters:

Name Type Attributes Description

event {string} the event type name (or space separated names)

selector {string} <optional> the CSS selector to match for event target

listener {function} the event handler function (or false)

opts

{Object}

the event listener options (see addEventListener)

Properties

Name	Type	Attributes	Description
`delay`	{number}	<optional>	an inactivity delay before calling listener

Returns:

{Node} the input DOM node (for chaining calls)

Inherited From:

RapidContext.UI.Event#once

Source:

rapidcontext/ui/event.mjs, line 60

removeAll()

Removes all children to this widget. This method will also destroy and child widgets and disconnect all signal listeners. This method uses the getChildNodes() and removeChildNode() methods to find and remove the individual child nodes.

Inherited From:: RapidContext.Widget#removeAll
Source:: RapidContext_Widget.js, line 547

removeChildNode(child)

Removes a single child DOM node from this widget. This method is sometimes overridden by child widgets in order to hide or control intermediate DOM nodes required by the widget.

Note that this method will NOT destroy the removed child widget, so care must be taken to ensure proper child widget destruction.

Parameters:

Name	Type	Description
`child`	{Widget\|Node}	the DOM node to remove

Inherited From:

RapidContext.Widget#removeChildNode

Source:

RapidContext_Widget.js, line 518

removeClass(…cls)

Removes the specified CSS class names from this HTML DOM node. Note that this method will not remove any class starting with "widget".

Parameters:

Name	Type	Attributes	Description
`cls`	{string\|Array}	<repeatable>	the CSS class names to remove

Inherited From:

RapidContext.Widget#removeClass

Source:

RapidContext_Widget.js, line 349

renderer(td, value, data)

Default cell value renderer. Adds an HTML representation of the value to the specified table cell. The value provided has already been converted to the configured column type.

Parameters:

Name	Type	Description
`td`	{Element}	the HTML <td> element to render into
`value`	{*}	the value to display
`data`	{Object}	the object containing the raw row data

Source:

RapidContext_Widget_TableColumn.js, line 251

setAttrs(attrs)

Updates the widget or HTML DOM node attributes. Note that some updates will not take effect until the parent table is cleared or data is reloaded.

Parameters:

Name Type Description

attrs

{Object}

the widget and node attributes to set

Properties

Name	Type	Attributes	Description
`title`	{string}	<optional>	the column title
`field`	{string}	<optional>	the data property name
`type`	{string}	<optional>	the data property type, one of "string", "number", "date", "time", "datetime", "boolean" or "object"
`sort`	{string}	<optional>	the sort direction, one of "asc", "desc", "none" (disabled) or null (unsorted)
`maxLength`	{number}	<optional>	the maximum data length, overflow will be displayed as a tooltip
`key`	{boolean}	<optional>	the unique key value flag, only to be set for a single column per table
`tooltip`	{string}	<optional>	the tooltip text to display on the column header
`cellStyle`	{string}	<optional>	the CSS styles or class names to set on the rendered cells
`renderer`	{function}	<optional>	the function that renders the converted data value into a table cell, called as `renderer(<td>, value, data)` with the DOM node, field value and data object as arguments

Overrides:

RapidContext.Widget#setAttrs

Source:

RapidContext_Widget_TableColumn.js, line 119

setStyle(styles)

Updates the CSS styles of this HTML DOM node. This method is identical to MochiKit.Style.setStyle, but uses "this" as the first argument.

Parameters:

Name	Type	Description
`styles`	{Object}	an object with the styles to set

Inherited From:

RapidContext.Widget#setStyle

Example:

widget.setStyle({ "font-size": "bold", "color": "red" });

Source:

RapidContext_Widget.js, line 288

show()

Shows this widget node if it was previously hidden. This method is equivalent to calling setAttrs({ hidden: false }). It is safe for all types of widgets, since it only removes the widgetHidden CSS class instead of setting the display style property.

Inherited From:: RapidContext.Widget#show
Source:: RapidContext_Widget.js, line 456

toggleClass(…cls) → {boolean}

Toggles adding and removing the specified CSS class names to and from this HTML DOM node. If all the CSS classes are already set, they will be removed. Otherwise they will be added.

Parameters:

Name	Type	Attributes	Description
`cls`	{string\|Array}	<repeatable>	the CSS class names to remove

Returns:

{boolean} true if the CSS classes were added, or false otherwise

Inherited From:

RapidContext.Widget#toggleClass

Source:

RapidContext_Widget.js, line 372

uid() → {string}

Returns the unique identifier for this DOM node. If a node id has already been set, that id will be returned. Otherwise a new id will be generated and assigned to the widget DOM node.

Returns:: {string} the the unique DOM node identifier
Inherited From:: RapidContext.Widget#uid
Source:: RapidContext_Widget.js, line 186