JSComponent

Overview

The JSComponent class provides a set of methods for interacting with and managing components within a solution model. It offers functionality for setting and retrieving properties such as background, font type, borders, visibility, and positioning. Through various getter and setter methods, it allows for fine-tuned control over the component’s attributes, including handling design-time properties, setting Z-index values, and managing anchor configurations.

In addition to visual and layout properties, JSComponent supports grouping components together by groupID, enabling batch actions like enabling or disabling multiple elements at once. The class also supports retrieving and setting CSS position for components in NGClient, as well as managing event handlers and design-time properties. It provides utility methods for managing component attributes, including getting and setting attribute values, and clearing attributes when necessary.

Properties Summarized

Type	Name	Summary
Number	anchors	Enables a component to stick to a specific side of form and/or to grow or shrink when a window is resized.
String	background	The background color of the component.
String	borderType	The type, color and style of border of the component.
CSSPosition	cssPosition	CSS position is a replacement for anchoring system making it more intuitive to place a component.
Boolean	enabled	The enable state of the component, default true.
String	fontType	The font type of the component.
String	foreground	The foreground color of the component.
Number	formIndex	The Z index of this component.
String	groupID	A String representing a group ID for this component.
Number	height	The height in pixels of the component.
String	name	The name of the component.
String	styleClass	The name of the style class that should be applied to this component.
Boolean	transparent	Flag that tells if the component is transparent or not.
Boolean	visible	The visible property of the component, default true.
Number	width	The width in pixels of the component.
Number	x	The x coordinate of the component on the form.
Number	y	The y coordinate of the component on the form.

Methods Summarized

Type	Name	Summary
Object	getAttribute(name)	Get the value of an attribute of the element.
Array	getAttributes()	Returns the attribute names of an element.
String	getComment()	Returns the comment of this component.
Object	getDesignTimeProperty(key)	Get a design-time property of an element.
Array	getDesignTimePropertyNames()	Get the design-time properties of an element.
String	getFormName()	Returns the name of the form.
UUID	getUUID()	Returns the UUID of this component.
Object	putDesignTimeProperty(key, value)	Set a design-time property of an element.
String	removeAttribute(name)	Remove the attribute of an element.
Object	removeDesignTimeProperty(key)	Clear a design-time property of an element.
void	setAttribute(name, value)	Set the attribute value of an element.

Properties Detailed

anchors

Enables a component to stick to a specific side of form and/or to grow or shrink when a window is resized.

If opposite anchors are activated then the component with grow or shrink with the window. For example if Top and Bottom are activated, then the component will grow/shrink when the window is vertically resized. If Left and Right are activated then the component will grow/shrink when the window is horizontally resized.

If opposite anchors are not activated, then the component will keep a constant distance from the sides of the window which correspond to the activated anchors.

Type Number The anchor configuration for the component.

Sample

var form = solutionModel.newForm('mediaForm', 'db:/example_data/parent_table', null, false, 400, 300);
var strechAllDirectionsLabel = form.newLabel('Strech all directions', 10, 10, 380, 280);
strechAllDirectionsLabel.background = 'red';
strechAllDirectionsLabel.anchors = SM_ANCHOR.ALL;
var strechVerticallyLabel = form.newLabel('Strech vertically', 10, 10, 190, 280);
strechVerticallyLabel.background = 'green';
strechVerticallyLabel.anchors = SM_ANCHOR.WEST | SM_ANCHOR.NORTH | SM_ANCHOR.SOUTH;
var strechHorizontallyLabel = form.newLabel('Strech horizontally', 10, 10, 380, 140);
strechHorizontallyLabel.background = 'blue';
strechHorizontallyLabel.anchors = SM_ANCHOR.NORTH | SM_ANCHOR.WEST | SM_ANCHOR.EAST;
var stickToTopLeftCornerLabel = form.newLabel('Stick to top-left corner', 10, 10, 200, 100);
stickToTopLeftCornerLabel.background = 'orange';
stickToTopLeftCornerLabel.anchors = SM_ANCHOR.NORTH | SM_ANCHOR.WEST; // This is equivalent to SM_ANCHOR.DEFAULT
var stickToBottomRightCornerLabel = form.newLabel('Stick to bottom-right corner', 190, 190, 200, 100);
stickToBottomRightCornerLabel.background = 'pink';
stickToBottomRightCornerLabel.anchors = SM_ANCHOR.SOUTH | SM_ANCHOR.EAST;

background

The background color of the component.

Type String The background color of the component.

Sample

// This property can be used on all types of components.
// Here it is illustrated only for labels and fields.
var greenLabel = form.newLabel('Green',10,10,100,50);
greenLabel.background = 'green'; // Use generic names for colors.
var redField = form.newField('parent_table_text',JSField.TEXT_FIELD,10,110,100,30);
redField.background = '#FF0000'; // Use RGB codes for colors.

borderType

The type, color and style of border of the component.

Type String The border type of the component as a string.

Sample

//HINT: To know exactly the notation of this property set it in the designer and then read it once out through the solution model.
var field = form.newField('my_table_text', JSField.TEXT_FIELD, 10, 10, 100, 20);
field.borderType = solutionModel.createLineBorder(1,'#ff0000');

cssPosition

CSS position is a replacement for anchoring system making it more intuitive to place a component. CSS position should be set on form, an absolute position form can either work with anchoring or with css position. This is only working in NGClient.

Type CSSPosition The CSS position of the component.

Sample

var label = form.newLabel('Label', -1);
label.cssPosition.r("10").b("10").w("20%").h("30px")

enabled

The enable state of the component, default true.

Type Boolean True if the component is enabled; false otherwise.

Sample

var form = solutionModel.newForm('printForm', 'db:/example_data/parent_table', null, false, 400, 300);
var field = form.newField('parent_table_text', JSField.TEXT_FIELD, 10, 10, 100, 20);
field.enabled = false;

fontType

The font type of the component.

Type String The font type of the component.

Sample

var label = form.newLabel('Text here', 10, 50, 100, 20);
label.fontType = solutionModel.createFont('Times New Roman',1,14);

foreground

The foreground color of the component.

Type String The foreground color of the component.

Sample

// This property can be used on all types of components.
// Here it is illustrated only for labels and fields.
var labelWithBlueText = form.newLabel('Blue text', 10, 10, 100, 30);
labelWithBlueText.foreground = 'blue'; // Use generic names for colors.
var fieldWithYellowText = form.newField('parent_table_text', JSField.TEXT_FIELD, 10, 50, 100, 20);
fieldWithYellowText.foreground = '#FFFF00'; // Use RGB codes for colors.

formIndex

The Z index of this component. If two components overlap, then the component with higher Z index is displayed above the component with lower Z index.

Type Number The Z-index of the component.

Sample

var labelBelow = form.newLabel('Green', 10, 10, 100, 50);
labelBelow.background = 'green';
labelBelow.formIndex = 10;
var fieldAbove = form.newField('parent_table_text', JSField.TEXT_FIELD, 10, 10, 100, 30);
fieldAbove.background = '#FF0000';
fieldAbove.formIndex = 20;

groupID

A String representing a group ID for this component. If several components have the same group ID then they belong to the same group of components. Using the group itself, all components can be disabled/enabled or made invisible/visible. The group id should be a javascript compatible identifier to allow access of the group in scripting.

Type String The group ID of the component.

Sample

var form = solutionModel.newForm('someForm', 'db:/example_data/parent_table', null, false, 400, 300);
var label = form.newLabel('Green', 10, 10, 100, 20);
var field = form.newField('parent_table_text', JSField.TEXT_FIELD, 10, 40, 100, 20);
label.groupID = 'someGroup';
field.groupID = 'someGroup';
forms['someForm'].elements.someGroup.enabled = false;

height

The height in pixels of the component.

Type Number The width of the component in pixels.

Sample

var field = form.newField('parent_table_text', JSField.TEXT_FIELD, 10, 10, 100, 20);
application.output('original width: ' + field.width);
application.output('original height: ' + field.height);
field.width = 200;
field.height = 100;
application.output('modified width: ' + field.width);
application.output('modified height: ' + field.height);

name

The name of the component. Through this name it can also accessed in methods. Must be a valid javascript name. (no - in the name or start with number)

Type String The name of the component.

Sample

var form = solutionModel.newForm('someForm', 'db:/example_data/parent_table', null, false, 620, 300);
var label = form.newLabel('Label', 10, 10, 150, 150);
label.name = 'myLabel'; // Give a name to the component.
forms['someForm'].controller.show()
// Now use the name to access the component.
forms['someForm'].elements['myLabel'].text = 'Updated text';

styleClass

The name of the style class that should be applied to this component.

When defining style classes for specific component types, their names must be prefixed according to the type of the component. For example in order to define a class names 'fancy' for fields, in the style definition the class must be named 'field.fancy'. If it would be intended for labels, then it would be named 'label.fancy'. When specifying the class name for a component, the prefix is dropped however. Thus the field or the label will have its styleClass property set to 'fancy' only.

Type String The CSS style class assigned to the component.

Sample

var form = solutionModel.newForm('printForm', 'db:/example_data/parent_table', null, false, 400, 300);
var field = form.newField('parent_table_text', JSField.TEXT_FIELD, 10, 10, 100, 20);
var style = solutionModel.newStyle('myStyle','field.fancy { background-color: yellow; }');
form.styleName = 'myStyle'; // First set the style on the form.
field.styleClass = 'fancy'; // Then set the style class on the field.

transparent

Flag that tells if the component is transparent or not.

The default value is "false", that is the components are not transparent.

Type Boolean True if the component is transparent; false otherwise.

Sample

// Load an image from disk an create a Media object based on it.
var imageBytes = plugins.file.readFile('d:/ball.jpg');
var media = solutionModel.newMedia('ball.jpg', imageBytes);
// Put on the form a label with the image.
var image = form.newLabel('', 10, 10, 100, 100);
image.imageMedia = media;
// Put two fields over the image. The second one will be transparent and the
// image will shine through.
var nonTransparentField = form.newField('parent_table_text', JSField.TEXT_FIELD, 10, 20, 100, 20);
var transparentField = form.newField('parent_table_text', JSField.TEXT_FIELD, 10, 50, 100, 20);
transparentField.transparent = true;

visible

The visible property of the component, default true.

Type Boolean True if the component is visible; false otherwise.

Sample

var form = solutionModel.newForm('printForm', 'db:/example_data/parent_table', null, false, 400, 300);
var field = form.newField('parent_table_text', JSField.TEXT_FIELD, 10, 10, 100, 20);
field.visible = false;

width

The width in pixels of the component.

Type Number The width of the component in pixels.

Sample

var field = form.newField('parent_table_text', JSField.TEXT_FIELD, 10, 10, 100, 20);
application.output('original width: ' + field.width);
application.output('original height: ' + field.height);
field.width = 200;
field.height = 100;
application.output('modified width: ' + field.width);
application.output('modified height: ' + field.height);

x

The x coordinate of the component on the form.

Type Number

Sample

var field = form.newField('parent_table_text', JSField.TEXT_FIELD, 10, 10, 100, 20);
application.output('original location: ' + field.x + ', ' + field.y);
field.x = 90;
field.y = 90;
application.output('changed location: ' + field.x + ', ' + field.y);

y

The y coordinate of the component on the form.

Type Number The Y-coordinate position of the component.

Sample

var field = form.newField('parent_table_text', JSField.TEXT_FIELD, 10, 10, 100, 20);
application.output('original location: ' + field.x + ', ' + field.y);
field.x = 90;
field.y = 90;
application.output('changed location: ' + field.x + ', ' + field.y);

Methods Detailed

getAttribute(name)

Get the value of an attribute of the element.

Parameters

• String name the name of the attribute

Returns: Object The value of the specified attribute.

Sample

var frm = solutionModel.getForm('orders')
var fld = frm.getField('fld')
var attributes = fld.getAttributes();
for (var i = 0; i < attributes.length; i++)
{
		application.output(fld.getAttribute(attributes[i]));
}

getAttributes()

Returns the attribute names of an element.

Returns: Array An array of attribute names for the component.

Sample

var frm = solutionModel.getForm('orders')
var fld = frm.getField('fld')
var attributes = fld.getAttributes();
for (var i = 0; i < attributes.length; i++)
{
		application.output(fld.getAttribute(attributes[i]));
}

getComment()

Returns the comment of this component.

Returns: String the comment associated with this component.

Sample

var comment = solutionModel.getForm("my_form").getButton("my_button").getComment();
application.output(comment);

getDesignTimeProperty(key)

Get a design-time property of an element.

Parameters

• String key the name of the property

Returns: Object The value of the specified design-time property.

Sample

var frm = solutionModel.getForm('orders')
var fld = frm.getField('fld')
var prop = fld.getDesignTimeProperty('myprop')

getDesignTimePropertyNames()

Get the design-time properties of an element.

Returns: Array An array of design-time property names for the component.

Sample

var frm = solutionModel.getForm('orders')
var fld = frm.getField('fld')
var propNames = fld.getDesignTimePropertyNames()

getFormName()

Returns the name of the form. (may be empty string as well)

Returns: String The name of the form containing the component.

Sample

var name = myElement.getFormName();

getUUID()

Returns the UUID of this component.

Returns: UUID the UUID of this component.

Sample

var button_uuid = solutionModel.getForm("my_form").getButton("my_button").getUUID();
application.output(button_uuid.toString());

putDesignTimeProperty(key, value)

Set a design-time property of an element. Value should be primitive data (string, boolean or number). Complex values should be stringified before call.

Parameters

• String key the name of the property

• Object value the value to store

Returns: Object The previous value of the specified design-time property, or null if none existed.

Sample

var frm = solutionModel.getForm('orders')
var fld = frm.getField('fld')
fld.putDesignTimeProperty('myprop', 'strawberry')

removeAttribute(name)

Remove the attribute of an element.

Parameters

• String name the name of the attribute

Returns: String the deleted attribute value

Sample

var frm = solutionModel.getForm('orders')
var fld = frm.getField('fld')
fld.removeAttribute('keylistener')

removeDesignTimeProperty(key)

Clear a design-time property of an element.

Parameters

• String key the name of the property

Returns: Object The removed value of the specified design-time property.

Sample

var frm = solutionModel.getForm('orders')
var fld = frm.getField('fld')
fld.removeDesignTimeProperty('myprop')

setAttribute(name, value)

Set the attribute value of an element.

Parameters

• String name the name of the attribute

• String value the value of the attribute

Returns: void

Sample

var frm = solutionModel.getForm('orders')
var fld = frm.getField('fld')
fld.setAttribute('keylistener', 'callback')

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