org.w3c.dom.css

Interface CSSPrimitiveValue

All Superinterfaces:
CSSValue

public interface CSSPrimitiveValue
extends CSSValue

The CSSPrimitiveValue interface represents a single CSS value . This interface may be used to determine the value of a specific style property currently set in a block or to set a specific style property explicitly within the block. An instance of this interface might be obtained from the getPropertyCSSValue method of the CSSStyleDeclaration interface. A CSSPrimitiveValue object only occurs in a context of a CSS property.

Conversions are allowed between absolute values (from millimeters to centimeters, from degrees to radians, and so on) but not between relative values. (For example, a pixel value cannot be converted to a centimeter value.) Percentage values can't be converted since they are relative to the parent value (or another property value). There is one exception for color percentage values: since a color percentage value is relative to the range 0-255, a color percentage value can be converted to a number; (see also the RGBColor interface).

See also the Document Object Model (DOM) Level 2 Style Specification.

Since:
DOM Level 2

Field Summary

static short
CSS_ATTR
The value is a attribute function.
static short
CSS_CM
The value is a length (cm).
static short
CSS_COUNTER
The value is a counter or counters function.
static short
CSS_DEG
The value is an angle (deg).
static short
CSS_DIMENSION
The value is a number with an unknown dimension.
static short
CSS_EMS
The value is a length (ems).
static short
CSS_EXS
The value is a length (exs).
static short
CSS_GRAD
The value is an angle (grad).
static short
CSS_HZ
The value is a frequency (Hz).
static short
CSS_IDENT
The value is an identifier.
static short
CSS_IN
The value is a length (in).
static short
CSS_KHZ
The value is a frequency (kHz).
static short
CSS_MM
The value is a length (mm).
static short
CSS_MS
The value is a time (ms).
static short
CSS_NUMBER
The value is a simple number.
static short
CSS_PC
The value is a length (pc).
static short
CSS_PERCENTAGE
The value is a percentage.
static short
CSS_PT
The value is a length (pt).
static short
CSS_PX
The value is a length (px).
static short
CSS_RAD
The value is an angle (rad).
static short
CSS_RECT
The value is a rect function.
static short
CSS_RGBCOLOR
The value is a RGB color.
static short
CSS_S
The value is a time (s).
static short
CSS_STRING
The value is a STRING.
static short
CSS_UNKNOWN
The value is not a recognized CSS2 value.
static short
CSS_URI
The value is a URI.

Fields inherited from interface org.w3c.dom.css.CSSValue

CSS_CUSTOM, CSS_INHERIT, CSS_PRIMITIVE_VALUE, CSS_VALUE_LIST

Method Summary

Counter
getCounterValue()
This method is used to get the Counter value.
float
getFloatValue(short unitType)
This method is used to get a float value in a specified unit.
short
getPrimitiveType()
The type of the value as defined by the constants specified above.
RGBColor
getRGBColorValue()
This method is used to get the RGB color.
Rect
getRectValue()
This method is used to get the Rect value.
String
getStringValue()
This method is used to get the string value.
void
setFloatValue(short unitType, float floatValue)
A method to set the float value with a specified unit.
void
setStringValue(short stringType, String stringValue)
A method to set the string value with the specified unit.

Methods inherited from interface org.w3c.dom.css.CSSValue

getCssText, getCssValueType, setCssText

Field Details

CSS_ATTR

public static final short CSS_ATTR
The value is a attribute function. The value can be obtained by using the getStringValue method.
Field Value:
22

CSS_CM

public static final short CSS_CM
The value is a length (cm). The value can be obtained by using the getFloatValue method.
Field Value:
6

CSS_COUNTER

public static final short CSS_COUNTER
The value is a counter or counters function. The value can be obtained by using the getCounterValue method.
Field Value:
23

CSS_DEG

public static final short CSS_DEG
The value is an angle (deg). The value can be obtained by using the getFloatValue method.
Field Value:
11

CSS_DIMENSION

public static final short CSS_DIMENSION
The value is a number with an unknown dimension. The value can be obtained by using the getFloatValue method.
Field Value:
18

CSS_EMS

public static final short CSS_EMS
The value is a length (ems). The value can be obtained by using the getFloatValue method.
Field Value:
3

CSS_EXS

public static final short CSS_EXS
The value is a length (exs). The value can be obtained by using the getFloatValue method.
Field Value:
4

CSS_GRAD

public static final short CSS_GRAD
The value is an angle (grad). The value can be obtained by using the getFloatValue method.
Field Value:
13

CSS_HZ

public static final short CSS_HZ
The value is a frequency (Hz). The value can be obtained by using the getFloatValue method.
Field Value:
16

CSS_IDENT

public static final short CSS_IDENT
The value is an identifier. The value can be obtained by using the getStringValue method.
Field Value:
21

CSS_IN

public static final short CSS_IN
The value is a length (in). The value can be obtained by using the getFloatValue method.
Field Value:
8

CSS_KHZ

public static final short CSS_KHZ
The value is a frequency (kHz). The value can be obtained by using the getFloatValue method.
Field Value:
17

CSS_MM

public static final short CSS_MM
The value is a length (mm). The value can be obtained by using the getFloatValue method.
Field Value:
7

CSS_MS

public static final short CSS_MS
The value is a time (ms). The value can be obtained by using the getFloatValue method.
Field Value:
14

CSS_NUMBER

public static final short CSS_NUMBER
The value is a simple number. The value can be obtained by using the getFloatValue method.
Field Value:
1

CSS_PC

public static final short CSS_PC
The value is a length (pc). The value can be obtained by using the getFloatValue method.
Field Value:
10

CSS_PERCENTAGE

public static final short CSS_PERCENTAGE
The value is a percentage. The value can be obtained by using the getFloatValue method.
Field Value:
2

CSS_PT

public static final short CSS_PT
The value is a length (pt). The value can be obtained by using the getFloatValue method.
Field Value:
9

CSS_PX

public static final short CSS_PX
The value is a length (px). The value can be obtained by using the getFloatValue method.
Field Value:
5

CSS_RAD

public static final short CSS_RAD
The value is an angle (rad). The value can be obtained by using the getFloatValue method.
Field Value:
12

CSS_RECT

public static final short CSS_RECT
The value is a rect function. The value can be obtained by using the getRectValue method.
Field Value:
24

CSS_RGBCOLOR

public static final short CSS_RGBCOLOR
The value is a RGB color. The value can be obtained by using the getRGBColorValue method.
Field Value:
25

CSS_S

public static final short CSS_S
The value is a time (s). The value can be obtained by using the getFloatValue method.
Field Value:
15

CSS_STRING

public static final short CSS_STRING
The value is a STRING. The value can be obtained by using the getStringValue method.
Field Value:
19

CSS_UNKNOWN

public static final short CSS_UNKNOWN
The value is not a recognized CSS2 value. The value can only be obtained by using the cssText attribute.
Field Value:
0

CSS_URI

public static final short CSS_URI
The value is a URI. The value can be obtained by using the getStringValue method.
Field Value:
20

Method Details

getCounterValue

public Counter getCounterValue()
            throws DOMException
This method is used to get the Counter value. If this CSS value doesn't contain a counter value, a DOMException is raised. Modification to the corresponding style property can be achieved using the Counter interface.
Returns:
The Counter value.
Throws:
DOMException - INVALID_ACCESS_ERR: Raised if the CSS value doesn't contain a Counter value (e.g. this is not CSS_COUNTER).

getFloatValue

public float getFloatValue(short unitType)
            throws DOMException
This method is used to get a float value in a specified unit. If this CSS value doesn't contain a float value or can't be converted into the specified unit, a DOMException is raised.
Parameters:
unitType - A unit code to get the float value. The unit code can only be a float unit type (i.e. CSS_NUMBER, CSS_PERCENTAGE, CSS_EMS, CSS_EXS, CSS_PX, CSS_CM, CSS_MM, CSS_IN, CSS_PT, CSS_PC, CSS_DEG, CSS_RAD, CSS_GRAD, CSS_MS, CSS_S, CSS_HZ, CSS_KHZ, CSS_DIMENSION).
Returns:
The float value in the specified unit.
Throws:
DOMException - INVALID_ACCESS_ERR: Raised if the CSS value doesn't contain a float value or if the float value can't be converted into the specified unit.

getPrimitiveType

public short getPrimitiveType()
The type of the value as defined by the constants specified above.

getRGBColorValue

public RGBColor getRGBColorValue()
            throws DOMException
This method is used to get the RGB color. If this CSS value doesn't contain a RGB color value, a DOMException is raised. Modification to the corresponding style property can be achieved using the RGBColor interface.
Returns:
the RGB color value.
Throws:
DOMException - INVALID_ACCESS_ERR: Raised if the attached property can't return a RGB color value (e.g. this is not CSS_RGBCOLOR).

getRectValue

public Rect getRectValue()
            throws DOMException
This method is used to get the Rect value. If this CSS value doesn't contain a rect value, a DOMException is raised. Modification to the corresponding style property can be achieved using the Rect interface.
Returns:
The Rect value.
Throws:
DOMException - INVALID_ACCESS_ERR: Raised if the CSS value doesn't contain a Rect value. (e.g. this is not CSS_RECT).

getStringValue

public String getStringValue()
            throws DOMException
This method is used to get the string value. If the CSS value doesn't contain a string value, a DOMException is raised. Some properties (like 'font-family' or 'voice-family') convert a whitespace separated list of idents to a string.
Returns:
The string value in the current unit. The current primitiveType can only be a string unit type (i.e. CSS_STRING, CSS_URI, CSS_IDENT and CSS_ATTR).
Throws:
DOMException - INVALID_ACCESS_ERR: Raised if the CSS value doesn't contain a string value.

setFloatValue

public void setFloatValue(short unitType,
                          float floatValue)
            throws DOMException
A method to set the float value with a specified unit. If the property attached with this value can not accept the specified unit or the float value, the value will be unchanged and a DOMException will be raised.
Parameters:
unitType - A unit code as defined above. The unit code can only be a float unit type (i.e. CSS_NUMBER, CSS_PERCENTAGE, CSS_EMS, CSS_EXS, CSS_PX, CSS_CM, CSS_MM, CSS_IN, CSS_PT, CSS_PC, CSS_DEG, CSS_RAD, CSS_GRAD, CSS_MS, CSS_S, CSS_HZ, CSS_KHZ, CSS_DIMENSION).
floatValue - The new float value.
Throws:
DOMException - INVALID_ACCESS_ERR: Raised if the attached property doesn't support the float value or the unit type.
NO_MODIFICATION_ALLOWED_ERR: Raised if this property is readonly.

setStringValue

public void setStringValue(short stringType,
                           String stringValue)
            throws DOMException
A method to set the string value with the specified unit. If the property attached to this value can't accept the specified unit or the string value, the value will be unchanged and a DOMException will be raised.
Parameters:
stringType - A string code as defined above. The string code can only be a string unit type (i.e. CSS_STRING, CSS_URI, CSS_IDENT, and CSS_ATTR).
stringValue - The new string value.
Throws:
DOMException - INVALID_ACCESS_ERR: Raised if the CSS value doesn't contain a string value or if the string value can't be converted into the specified unit.
NO_MODIFICATION_ALLOWED_ERR: Raised if this property is readonly.

* Copyright (c) 2000 World Wide Web Consortium, * (Massachusetts Institute of Technology, Institut National de * Recherche en Informatique et en Automatique, Keio University). All * Rights Reserved. This program is distributed under the W3C's Software * Intellectual Property License. This program is distributed in the * hope that it will be useful, but WITHOUT ANY WARRANTY; without even * the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR * PURPOSE. * See W3C License http://www.w3.org/Consortium/Legal/ for more details.