Class RapidContext.Widget.TreeNode

.Widget.TreeNode(attrs, …childopt) → {Widget}

The tree node widget class. Used to provide a tree node in a tree, using a number of <div> HTML elements. Note that events should normally not be listened for on individual tree nodes, but rather on the tree as a whole.

Constructor Summary
	`new TreeNode(attrs, …childopt) → {Widget}` Creates a new tree node widget.

Method Summary
	`addAll(…child)` Adds one or more children to this widget.
	`addChildNode(child)` Adds a single child tree node widget to this widget.
	`addClass(…cls)` Adds the specified CSS class names to this HTML DOM node.
	`animate(opts)` Performs a visual effect animation on this widget.
	`blurAll()` Blurs (unfocuses) this DOM node and all relevant child nodes.
	`collapse()` Collapses this node to hide any child nodes.
	`collapseAll(depthopt)` Recursively collapses this node and all its children.
	`destroy()` Destroys this widget.
	`disable()` Disables this widget if it was previously enabled.
	`enable()` Enables this widget if it was previously disabled.
	`expand()` Expands this node to display any child nodes.
	`expandAll(depthopt)` Recursively expands this node and all its children.
	`findByPath(path) → {Widget}` Searches for a descendant tree node from the specified path.
	`findChild(name) → {Widget}` Finds a child tree node with the specified name.
	`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.
	`isExpanded() → {boolean}` Checks if this folder node is expanded.
	`isFolder() → {boolean}` Checks if this node is a folder.
	`isHidden() → {boolean}` Checks if this widget node is hidden.
	`isSelected() → {boolean}` Checks if this node is selected.
	`markAll()` Marks this tree node and all child nodes recursively.
	`parent() → {Widget}` Returns the parent tree node widget.
	`path() → {Array}` Returns the path to this tree node.
	`removeAll()` Removes all children to this widget.
	`removeAllMarked()` Removes all marked tree nodes.
	`removeChildNode(child)` Removes a single child DOM node from this widget.
	`removeClass(…cls)` Removes the specified CSS class names from this HTML DOM node.
	`select()` Selects this tree node.
	`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.
	`toggle()` Toggles expand and collapse for this node.
	`toggleClass(…cls) → {boolean}` Toggles adding and removing the specified CSS class names to and from this HTML DOM node.
	`tree() → {Widget}` Returns the ancestor tree widget.
	`uid() → {string}` Returns the unique identifier for this DOM node.
	`unselect()` Unselects this tree node.

Constructor

new TreeNode(attrs, …childopt) → {Widget}

Creates a new tree node widget.

Parameters:

Name Type Attributes Description

attrs

{Object}

the widget and node attributes

Properties

Name	Type	Attributes	Description
`name`	{string}		the tree node name
`folder`	{boolean}	<optional>	the folder flag, defaults to `false` if no child nodes are provided in constructor call
`icon`	{string}	<optional>	the icon reference to use, defaults to "FOLDER" for folders and "DOCUMENT" otherwise
`tooltip`	{string}	<optional>	the tooltip text when hovering
`hidden`	{boolean}	<optional>	the hidden widget flag, defaults to `false`

child {TreeNode} <optional>
<repeatable> the child tree node widgets

Returns:

{Widget} the widget DOM node

Examples:

JavaScript

var parent = RapidContext.Widget.TreeNode({ folder: true, name: "Parent" });
var child = RapidContext.Widget.TreeNode({ name: "Child" });
parent.addAll(child);

User Interface XML

<TreeNode name="Parent">
  <TreeNode name="Child" />
</TreeNode>

Source:

RapidContext_Widget_TreeNode.js, line 53

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 570

addChildNode(child)

Adds a single child tree node widget to this widget.

Parameters:

Name	Type	Description
`child`	{Widget}	the tree node widget to add

Overrides:

RapidContext.Widget#addChildNode

Source:

RapidContext_Widget_TreeNode.js, line 165

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 333

animate(opts)

Performs a visual effect animation on this widget. This is implemented using the MochiKit.Visual effect package. All options sent to this function will be passed on to the appropriate MochiKit.Visual function.

Parameters:

Name Type Description

opts

{Object}

the visual effect options

Properties

Name	Type	Description
`effect`	{string}	the MochiKit.Visual effect name
`queue`	{string}	the MochiKit.Visual queue handling, defaults to "replace" and a unique scope for each widget (see `MochiKit.Visual` for full options)

Inherited From:

RapidContext.Widget#animate

Deprecated:

Use CSS animations instead.

Example:

widget.animate({ effect: "fade", duration: 0.5 });
widget.animate({ effect: "Move", transition: "spring", y: 300 });

Source:

RapidContext_Widget.js, line 492

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 510

collapse()

Collapses this node to hide any child nodes.

Source:: RapidContext_Widget_TreeNode.js, line 402

collapseAll(depthopt)

Recursively collapses this node and all its children. If a depth is specified, only children below that depth will be collapsed.

Parameters:

Name	Type	Attributes	Description
`depth`	{number}	<optional>	the optional minimum depth

Source:

RapidContext_Widget_TreeNode.js, line 424

destroy()

Destroys this widget.

Overrides:: RapidContext.Widget#destroy
Source:: RapidContext_Widget_TreeNode.js, line 77

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 424

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 416

expand()

Expands this node to display any child nodes. If the parent node is not expanded, it will be expanded as well.

Source:: RapidContext_Widget_TreeNode.js, line 362

expandAll(depthopt)

Recursively expands this node and all its children. If a depth is specified, expansions will not continue below that depth.

Parameters:

Name	Type	Attributes	Description
`depth`	{number}	<optional>	the optional maximum depth

Source:

RapidContext_Widget_TreeNode.js, line 388

findByPath(path) → {Widget}

Searches for a descendant tree node from the specified path.

Parameters:

Name	Type	Description
`path`	{Array}	the tree node path (array of node names)

Returns:

{Widget} the descendant tree node found, or null if not found

Source:

RapidContext_Widget_TreeNode.js, line 325

findChild(name) → {Widget}

Finds a child tree node with the specified name.

Parameters:

Name	Type	Description
`name`	{string}	the child tree node name

Returns:

{Widget} the child tree node found, or null if not found

Source:

RapidContext_Widget_TreeNode.js, line 307

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 522

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 315

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 470

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 395

isExpanded() → {boolean}

Checks if this folder node is expanded.

Returns:: {boolean} true if this node is expanded, or false otherwise
Source:: RapidContext_Widget_TreeNode.js, line 235

isFolder() → {boolean}

Checks if this node is a folder.

Returns:: {boolean} true if this node is a folder, or false otherwise
Source:: RapidContext_Widget_TreeNode.js, line 225

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 437

isSelected() → {boolean}

Checks if this node is selected.

Returns:: {boolean} true if the node is selected, or false otherwise
Source:: RapidContext_Widget_TreeNode.js, line 246

markAll()

Marks this tree node and all child nodes recursively. When adding or updating tree nodes, any node modified is automatically unmarked (e.g. by calling setAttrs). This makes it easy to prune a tree after an update, by initially marking all tree nodes, inserting or touching all nodes to keep, and finally calling removeAllMarked() to remove the remaining nodes.

Example:

parent.markAll();
parent.setAttrs();
child.setAttrs();
...
parent.removeAllMarked();

Source:

RapidContext_Widget_TreeNode.js, line 211

parent() → {Widget}

Returns the parent tree node widget.

Returns:: {Widget} the parent tree node widget, or null if this is a root node
Source:: RapidContext_Widget_TreeNode.js, line 274

path() → {Array}

Returns the path to this tree node.

Returns:: {Array} the tree node path, i.e an array of node names
Source:: RapidContext_Widget_TreeNode.js, line 288

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 582

removeAllMarked()

Removes all marked tree nodes. When adding or updating tree nodes, any node modified is automatically unmarked (e.g. by calling setAttrs). This makes it easy to prune a tree after an update, by initially marking all tree nodes with markAll(), inserting or touching all nodes to keep, and finally calling this method to remove the remaining nodes.

Example:

parent.markAll();
parent.setAttrs();
child.setAttrs();
...
parent.removeAllMarked();

Source:

RapidContext_Widget_TreeNode.js, line 186

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 553

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 353

select()

Selects this tree node.

Source:: RapidContext_Widget_TreeNode.js, line 336

setAttrs(attrs)

Updates the widget or HTML DOM node attributes.

Parameters:

Name Type Description

attrs

{Object}

the widget and node attributes to set

Properties

Name	Type	Attributes	Description
`name`	{string}	<optional>	the tree node name
`folder`	{boolean}	<optional>	the folder flag, cannot be reverted to `false` once set (implicitly or explicitly)
`icon`	{Icon\|Object\|string}	<optional>	icon the icon to set, or null to remove
`tooltip`	{string}	<optional>	the tooltip text when hovering
`hidden`	{boolean}	<optional>	the hidden widget flag

Overrides:

RapidContext.Widget#setAttrs

Source:

RapidContext_Widget_TreeNode.js, line 134

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 294

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 460

toggle()

Toggles expand and collapse for this node.

Source:: RapidContext_Widget_TreeNode.js, line 440

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 376

tree() → {Widget}

Returns the ancestor tree widget.

Returns:: {Widget} the ancestor tree widget, or null if none was found
Source:: RapidContext_Widget_TreeNode.js, line 256

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 182

unselect()

Unselects this tree node.

Source:: RapidContext_Widget_TreeNode.js, line 348