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

    Fields
    Modifier and Type | Field and Description
    --- | ---
    `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

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `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.
    `Rect` | `getRectValue()` This method is used to get the Rect value.
    `RGBColor` | `getRGBColorValue()` This method is used to get the RGB color.
    `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 Detail

    - #### CSS_UNKNOWN

          static final short CSS_UNKNOWN

      The value is not a recognized CSS2 value. The value can only be obtained by using the `cssText` attribute.
      See Also:
        Constant Field Values

    - #### CSS_NUMBER

          static final short CSS_NUMBER

      The value is a simple number. The value can be obtained by using the `getFloatValue` method.
      See Also:
        Constant Field Values

    - #### CSS_PERCENTAGE

          static final short CSS_PERCENTAGE

      The value is a percentage. The value can be obtained by using the `getFloatValue` method.
      See Also:
        Constant Field Values

    - #### CSS_EMS

          static final short CSS_EMS

      The value is a length (ems). The value can be obtained by using the `getFloatValue` method.
      See Also:
        Constant Field Values

    - #### CSS_EXS

          static final short CSS_EXS

      The value is a length (exs). The value can be obtained by using the `getFloatValue` method.
      See Also:
        Constant Field Values

    - #### CSS_PX

          static final short CSS_PX

      The value is a length (px). The value can be obtained by using the `getFloatValue` method.
      See Also:
        Constant Field Values

    - #### CSS_CM

          static final short CSS_CM

      The value is a length (cm). The value can be obtained by using the `getFloatValue` method.
      See Also:
        Constant Field Values

    - #### CSS_MM

          static final short CSS_MM

      The value is a length (mm). The value can be obtained by using the `getFloatValue` method.
      See Also:
        Constant Field Values

    - #### CSS_IN

          static final short CSS_IN

      The value is a length (in). The value can be obtained by using the `getFloatValue` method.
      See Also:
        Constant Field Values

    - #### CSS_PT

          static final short CSS_PT

      The value is a length (pt). The value can be obtained by using the `getFloatValue` method.
      See Also:
        Constant Field Values

    - #### CSS_PC

          static final short CSS_PC

      The value is a length (pc). The value can be obtained by using the `getFloatValue` method.
      See Also:
        Constant Field Values

    - #### CSS_DEG

          static final short CSS_DEG

      The value is an angle (deg). The value can be obtained by using the `getFloatValue` method.
      See Also:
        Constant Field Values

    - #### CSS_RAD

          static final short CSS_RAD

      The value is an angle (rad). The value can be obtained by using the `getFloatValue` method.
      See Also:
        Constant Field Values

    - #### CSS_GRAD

          static final short CSS_GRAD

      The value is an angle (grad). The value can be obtained by using the `getFloatValue` method.
      See Also:
        Constant Field Values

    - #### CSS_MS

          static final short CSS_MS

      The value is a time (ms). The value can be obtained by using the `getFloatValue` method.
      See Also:
        Constant Field Values

    - #### CSS_S

          static final short CSS_S

      The value is a time (s). The value can be obtained by using the `getFloatValue` method.
      See Also:
        Constant Field Values

    - #### CSS_HZ

          static final short CSS_HZ

      The value is a frequency (Hz). The value can be obtained by using the `getFloatValue` method.
      See Also:
        Constant Field Values

    - #### CSS_KHZ

          static final short CSS_KHZ

      The value is a frequency (kHz). The value can be obtained by using the `getFloatValue` method.
      See Also:
        Constant Field Values

    - #### CSS_DIMENSION

          static final short CSS_DIMENSION

      The value is a number with an unknown dimension. The value can be obtained by using the `getFloatValue` method.
      See Also:
        Constant Field Values

    - #### CSS_STRING

          static final short CSS_STRING

      The value is a STRING. The value can be obtained by using the `getStringValue` method.
      See Also:
        Constant Field Values

    - #### CSS_URI

          static final short CSS_URI

      The value is a URI. The value can be obtained by using the `getStringValue` method.
      See Also:
        Constant Field Values

    - #### CSS_IDENT

          static final short CSS_IDENT

      The value is an identifier. The value can be obtained by using the `getStringValue` method.
      See Also:
        Constant Field Values

    - #### CSS_ATTR

          static final short CSS_ATTR

      The value is a attribute function. The value can be obtained by using the `getStringValue` method.
      See Also:
        Constant Field Values

    - #### CSS_COUNTER

          static final short CSS_COUNTER

      The value is a counter or counters function. The value can be obtained by using the `getCounterValue` method.
      See Also:
        Constant Field Values

    - #### CSS_RECT

          static final short CSS_RECT

      The value is a rect function. The value can be obtained by using the `getRectValue` method.
      See Also:
        Constant Field Values

    - #### CSS_RGBCOLOR

          static final short CSS_RGBCOLOR

      The value is a RGB color. The value can be obtained by using the `getRGBColorValue` method.
      See Also:
        Constant Field Values

  - ### Method Detail

    - #### getPrimitiveType

          short getPrimitiveType()

      The type of the value as defined by the constants specified above.

    - #### setFloatValue

          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.

    - #### getFloatValue

          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.

    - #### setStringValue

          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.

    - #### getStringValue

          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.

    - #### getCounterValue

          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`).

    - #### getRectValue

          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`).

    - #### getRGBColorValue

          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`).

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