OrgChart class

OrgChart(client, oOptsopt)

new OrgChart(client, oOptsopt)

The ExOrgChart/JS component permits the totally automatic generation of organigrams. An organigram generally provides a clear picture of the hierarchical position of the various actors. The control shows a hierarchical display of nodes, each one having an HTML caption, pictures and icons aligned to any side of the node. Each node can have child-nodes, assistant-nodes or group-nodes. The ExOrgChart/JS is a HTML standalone-component, written in JavaScript, that uses no third-party libraries.

Every option of the OrgChart.Options type has associated a property of the control. For instance, the option:

allowActions {string}, customizes the actions the user can perform once the user clicks or touches the control
is associated with the property:
AllowActions {string}, customizes the actions the user can perform once the user clicks or touches the control
which means that the following statements are equivalent:
oOrgChart.Options = {allowActions: "scroll"}
oOrgChart.SetOptions({allowActions: "scroll"})
oOrgChart.AllowActions = "scroll"
oOrgChart.SetAllowActions("scroll")
where oOrgChart is an object of OrgChart type
Parameters:
Name Type Attributes Description
client any The client parameter indicates the control's client area as:
  • array of [x,y,width,height] type that specifies the control's client area
  • string, that specifies the identifier of the canvas within the document, so the canvas's client area becomes the control's client area
  • HTMLCanvasElement, that specifies the identifier of the canvas within the document, so the canvas's client area becomes the control's client area
oOpts object <optional>
 An object of OrgChart.Options type that defines different options to display the control
Requires:
  • module:exontrol.commmon.min.js
OrgChart

Requires

  • module:exontrol.commmon.min.js

Classes

Options

Members

Listeners :exontrol.Lts

The Listeners field defines the events of the control, as an object of exontrol.Lts type. The exontrol.Lts type supports forEach(callback, thisArg) method that helps you to enumerate the events the control supports. The Events section lists the events the component supports.
Type:
  • exontrol.Lts
Example
The following sample shows how you can get all events the component currently supports:

oOrgChart.Listeners.forEach(function(name)
{
 console.log(name);
});

The following sample displays information about the node being clicked:

oOrgChart.Listeners.Add("onclick", function (oEvent)
{
 console.log(oEvent);
});

or

oOrgChart.on("click", function (oEvent)
{
 console.log(oEvent);
});

where oOrgChart is an object of OrgChart type
Listeners

Root :Node

The Root field defines the root node of the control, as an object of Node type. Use the AddChild(oNodeOptions) method to add a child node. The AddAssistant(oNodeOptions) method adds an assistant-node. The AddGroup(oNodeOptions) method adds a group-node. Use the Nodes / GetNodes() / SetNodes(value) method to assign nodes from a string-representation, to the current node.
Type:
Example
oOrgChart.Root.Nodes = "Root(1,2,3[g])" or Root.SetNodes("Root(1,2,3[g])"), adds two child-nodes 1, 2 and 3 as a group-node of the root.
oOrgChart.Root.AddChild({ caption: "Anita", image: "ana"}), adds a child of the root node, with the caption "Anita" which display the image with the key "ana".
Root

Shortcuts :exontrol.Sts

The Shortcuts field defines the shortcuts of the control, as an object of exontrol.Sts type. In order to provide keyboard support for the component, the owner <canvas> element must include the tabIndex attribute, as <canvas ... tabIndex="0">. You can associated a function or a callback to any shortcut.
Type:
  • exontrol.Sts
Example
The following sample removes the selection (calls the RemoveSelection() method) once the user presses the Delete key:

oOrgChart.Shortcuts.Add( "Delete", oOrgChart.RemoveSelection, oOrgChart );

where oOrgChart is an object of OrgChart type
Shortcuts

oCV :CV

Defines the view of the control as an object of CV type.
Type:
oCV

(static, readonly) SingleSelEnum :number

The OrgChart.SingleSelEnum type defines flags the singleSel/SetSingleSel/GetSingleSel method uses.
Type:
  • number
Properties:
Name value Type Description
exDisableSel 0 number The exDisableSel value specifies that the control's selection is disabled.
exEnableSel 1 number The exEnableSel flag specifies that the control's selection is enabled (multiple-selection, unless the exSingleSel is set ).
exSingleSel 2 number The exSingleSel flag specifies that the user can select a node only.
exToggleSel 4 number The exToggleSel flag specifies that the node's selection state is toggled once the user clicks a node.
exDisableCtrlSel 8 number The exDisableCtrlSel flag disables toggling the node's selection state when user clicks a node, while CTRL modifier key is pressed.
exDisableShiftSel 16 number The exDisableShiftSel flag disables selecting nodes using the SHIFT key.
exDisableDrag 32 number The exDisableDrag flag disables selecting nodes by drag.

(static) type :string

The type field defines the full-name of the object (the constructor.name does not give the same name for minimized forms). The OrgChart.type member always returns "OrgChart"
Type:
  • string
Since:
  • 1.8

(static) version :string

The version field defines the version of the control. The current version is 3.4
Type:
  • string

Methods

BeginUpdate()

The BeginUpdate() method suspends the control's render until the EndUpdate() method is called. It maintains performance, while multiple changes occurs within the control. You can use the Update() method to perform multiple changes at once.
BeginUpdate

EndUpdate()

The EndUpdate() method resumes the control's render, after it is suspended by the BeginUpdate() method.
EndUpdate

GetLayout(oOptsopt) → {string}

The GetLayout() method saves the UI layout of the object to an encoded string. The layout can be restored using the SetLayout() method. Currently, the control's Layout property serializes the following:
  • layout of windows (size, dock, parent)
  • selected nodes
  • expand/collapse nodes
  • control's zoom
Parameters:
Name Type Attributes Description
oOpts object <optional>
 An object of {iMask,eMask,base64,equal,eol} type that defines options to serialize the properties of the container as explained bellow:
  • iMask {string}, specifies the mask (can include ? or * wild-characters) of properties to save
  • eMask {string}, specifies the mask (can include ? or * wild-characters) of properties to exclude from save
  • base64 {boolean}, Encodes the result to BASE 64
  • equal {string}, Indicates the separator between the name and the value. If missing, the = character is used
  • eol {string}, A character that separates the properties. By default it is "\n"
Since:
  • 1.8
Returns:
Returns a string that encodes the current UI layout for the entire object
Type
string
Example
The following statements are equivalents:

 oOrgChart.GetLayout(), gets the control's layout
 oOrgChart.Layout, gets the control's layout

where oOrgChart is an object of OrgChart type
GetLayout

GetStatistics() → {string}

The GetStatistics() method gives statistics data of objects being hold by the control
Returns:
Returns statistics data of objects being hold by the control such as
Size: 588x412
Zoom: 100%
Node: 37/99
Link: 78
Sel: 1
Type
string
GetStatistics

SetLayout(layout, oOptsopt)

The SetLayout() method restores the UI layout of the object from an encoded string, previously returned by the GetLayout() method. Currently, the control's Layout property serializes the following:
  • layout of windows (size, dock, parent)
  • selected nodes
  • expand/collapse nodes
  • control's zoom
Parameters:
Name Type Attributes Description
layout string A string expression that defines the UI layout to apply
oOpts object <optional>
 An object of {iMask,eMask,base64,equal,eol} type that defines options to serialize the UI layout as explained bellow:
  • iMask {string}, specifies the mask (can include ? or * wild-characters) of properties to load
  • eMask {string}, specifies the mask (can include ? or * wild-characters) of properties to exclude from load
  • base64 {boolean}, Decodes the layout from BASE 64
  • equal {string}, Indicates the separator between the name and the value. If missing, the = character is used
  • eol {string}, A sequence of characters that can separate the properties. By default, any of \n, \r or ; separates the properties
Since:
  • 1.8
SetLayout

Update(callback, thisArgopt)

The Update() method locks the control's paint during the callback, and invalidates the control once the method ends.
Parameters:
Name Type Attributes Description
callback callback Indicates a callback to perform changes within the control
thisArg any <optional>
 Specifies the value of "this" keyword during the callback. If missing/empty/undefined the thisArg points to the control itself, as an object of OrgChart type
Update

init(client, oOptsopt)

The init() method initializes the object
Parameters:
Name Type Attributes Description
client any The client parameter indicates the control's client area as:
  • array of [x,y,width,height] type that specifies the control's client area
  • string, that specifies the identifier of the canvas within the document, so the canvas's client area becomes the control's client area
  • HTMLCanvasElement, that specifies the identifier of the canvas within the document, so the canvas's client area becomes the control's client area
oOpts object <optional>
 An object of OrgChart.Options type that defines different options to display the control
Since:
  • 1.8
init

off(event, listener, methodopt)

The off() method removes an event handler that was previously bound to an event, effectively stopping the listener from responding to that event.
Parameters:
Name Type Attributes Description
event string Specifies the name of the event to unbind. The event name is case-insensitive and may or may not include the 'on' prefix. For example, 'click' is equivalent to 'onclick' and vice versa.
listener object | callback Defines the listener to remove, which can either be: listener {object}, an object that implements a notification method (e.g., listener[method](oEvent) or listener[type](oEvent)) that was previously used to handle the event listener {callback}, a JavaScript callback function that was previously bound to the event (the method parameter has no effect)
method string <optional>
 Defines an optional case-sensitive string specifying the method on the listener to remove. If not provided, the listener[type]() function is used. This parameter is ignored when the listener is a JavaScript callback function.
Since:
  • 4.4
Example
The following example removes the click event handler from the control:

oCV.off("click");

where oCV is an object of CV type.

This sample is equivalent to:

oCV.Listeners.Remove("onclick");

The following example removes all event handlers from the control:

oCV.off();

where oCV is an object of CV type.

This sample is equivalent to:

oCV.Listeners.Clear();

or

oCV.Listeners.Remove();
off

on(event, listener, methodopt) → {object}

The on() method binds a handler to a specified event, enabling you to listen for specific events and define corresponding actions.
Parameters:
Name Type Attributes Description
event string Specifies the name of the event to listen for. The event name is case-insensitive and may or may not include the 'on' prefix. For example, 'click' is equivalent to 'onclick' and vice versa.
listener object | callback Defines the listener, which can either be: listener {object}, an object that implements a notification method (e.g., listener[method](oEvent) or listener[type](oEvent)) to handle the event when it occurs listener {callback}, a JavaScript callback function to handle the event directly (the method parameter has not effect)
method string <optional>
 Defines an optional case-sensitive string specifying the method on the listener to handle the event. If not provided, the listener[type]() function is used. This parameter is ignored when the listener is a JavaScript callback function.
Since:
  • 4.4
Returns:
Returns the listeners of the specified type, as an exontrol.Arr({callback, thisArg, lock, name, equal}) type, which includes the following new members:
  • type {string}, specifies a case-sensitive string that specifies the type of event to listen for
  • do(event) {callback}, indicates a function that can be invoked to trigger the specified event for all listeners registered for that event type
where:
  • callback {callback}, defines the listener's callback function
  • thisArg {any}, defines the value of this during the listener's callback execution
  • lock {number}, locks or unlocks the invocation of the listener's callback
  • name {string}, defines the name of the callback, mostly used for debugging purposes
  • equal(oCompareListenerCallback) {callback}, indicates a function of callback(oCompareListenerCallback) {boolean} type compares the current object with the provided object. It returns true if the objects contain the same data
Type
object
Example
The following example logs event details when the control is clicked:

oCV.on("click", function(oEvent)
{
  console.log(oEvent);
});

where oCV is an object of CV type.

This sample is quivalent of 

oCV.Listeners.Add("onclick", function (oEvent)
{
  console.log(oEvent);
});
on