IlvCSSSelector (Perforce JViews 10.0 API)

```
public interface IlvCSSSelector
```
This interface defines the read only access to a simple selector of a CSS rule. Each CSS rule consists of a sequence of simple selectors that define how the rule matches the objects, and the declarations define how to set the properties of the matches objects. A simple selector is a type selector (the special type selector * is usually also called the universal selector) followed immediately by zero or more attribute selectors, class selectors, ID selectors, or pseudo-classes, in any order. The simple selector matches if all of its components match.
For instance, the CSS rule
```
 node.activity[workload==5]:touched {
   x: 100;
   y: 200;
 }
 
```
contains the simple selector node.activity[workload==5]:touched which has the type selector node, the class selector .activity, the attribute selector [workload==5] and the pseudo class selector :touched. The CSS rule
```
 #node88:touched {
   x: 100;
   y: 200;
 }
 
```
contains the simple selector #node88:touched, which is synonymous to *#node88:touched, hence it has the type selector *, the id selector #node88, and the pseudo class selector :touched.
The full selector of a rule may contain multiple simple selectors, for instance the selector of the rule
```
 #graph88 < node { ... }
 
```
contains the two simple selectors #graph88 and node which matches all objects of type "node" that are children of the object with id "graph88". The transition between both simple selectors is the operator "<" which has the meaning is child in the CSS element hierarchy.
Since:

JViews 7.5

See Also:

IlvCSSRule

Field Summary

Fields
Modifier and Type	Field and Description
`static int`	`BROTHER` Transition type: The object matching this selector must preceeded immediately by the sibling object matching the previous selector.
`static int`	`CHILD` Transition type: The object matching this selector must be a child of the object matching the previous selector.
`static int`	`DESCENDANT` Transition type: The object matching this selector must be a descendant of the object matching the previous selector.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method and Description
`boolean`	`deepEquals(Object obj)` Returns `true` if this simple selector is equal to the input simple selector.
`int`	`deepHashCode()` Returns a hash code of this simple selector that is compatible with `deepEquals(Object)`.
`IlvCSSAttributeSelector[]`	`getAttributeSelectors()` Returns the attribute selectors of the simple selector.
`String[]`	`getClasses()` Returns the CSS class selectors of the simple selector.
`URL`	`getDocumentPath()` Returns the URL of the CSS document that contains the simple selector.
`String`	`getID()` Returns the ID selector of the simple selector.
`int`	`getLineNumber()` Returns the line number of the simple selector in the CSS document that contains the selector.
`int`	`getPreviousTransition()` Returns the transition type with the previous simple selector.
`String[]`	`getPseudoClasses()` Returns the pseudo-class selectors of the simple selector.
`String`	`getType()` Returns the type selector of the simple selector.
`void`	`printCSS(PrintWriter out, int indent)` Prints the simple selector using CSS syntax.

- Field Detail
  - DESCENDANT
```
static final int DESCENDANT
```
    Transition type: The object matching this selector must be a descendant of the object matching the previous selector.
    Example: sel1 sel2
    
    See Also:
    
    getPreviousTransition(), Constant Field Values
  - CHILD
```
static final int CHILD
```
    Transition type: The object matching this selector must be a child of the object matching the previous selector.
    Example: sel1 < sel2
    
    See Also:
    
    getPreviousTransition(), Constant Field Values
  - BROTHER
```
static final int BROTHER
```
    Transition type: The object matching this selector must preceeded immediately by the sibling object matching the previous selector.
    Example: sel1 + sel2
    
    See Also:
    
    getPreviousTransition(), Constant Field Values
- Method Detail
  - getPreviousTransition
```
int getPreviousTransition()
```
    Returns the transition type with the previous simple selector. This occurs only if the full selector of a rule consists of multiple simple selectors. All simple selectors following the first simple selector must specify how they relate to each other.
    Example: if the full selector is #graph88 < node and this selector is the node part of the full selector, then the previous transition is "<".
    Possible return values are: DESCENDANT, BROTHER and CHILD.
    If this simple selector is the first selector of the full selector, the previous transition can be ignored.
  - getType
```
String getType()
```
    Returns the type selector of the simple selector. Returns null if no type is defined for this selector, which is semantically equivalent to the universal selector type, i.e., it matches all types.
  - getID
```
String getID()
```
    Returns the ID selector of the simple selector. Returns null if no ID is defined in this selector.
  - getClasses
```
String[] getClasses()
```
    Returns the CSS class selectors of the simple selector. Returns an empty array if no CSS classes are defined in this selector.
  - getPseudoClasses
```
String[] getPseudoClasses()
```
    Returns the pseudo-class selectors of the simple selector. Returns an empty array if no pseudo classes are defined in this selector.
  - getAttributeSelectors
```
IlvCSSAttributeSelector[] getAttributeSelectors()
```
    Returns the attribute selectors of the simple selector. Returns an empty array if no attribute selectors are defined in this selector.
  - getLineNumber
```
int getLineNumber()
```
    Returns the line number of the simple selector in the CSS document that contains the selector. Returns -1 if the selector is not originated from parsing a source file.
  - getDocumentPath
```
URL getDocumentPath()
```
    Returns the URL of the CSS document that contains the simple selector. Returns null if the selector is not originated from parsing a source file.
  - printCSS
```
void printCSS(PrintWriter out,
              int indent)
```
    Prints the simple selector using CSS syntax.
    
    Parameters:
    
    out - The output print writer.
    
    indent - The indentation level.
  - deepEquals
```
boolean deepEquals(Object obj)
```
    Returns true if this simple selector is equal to the input simple selector. This compares the type, id, class, pseudo-class and attribute selectors, but ignores the line number or the document path.
    
    Since:
    
    JViews 8.6
  - deepHashCode
```
int deepHashCode()
```
    Returns a hash code of this simple selector that is compatible with deepEquals(Object).
    
    Since:
    
    JViews 8.6

Interface IlvCSSSelector

Field Summary

Method Summary

Field Detail

DESCENDANT

CHILD

BROTHER

Method Detail

getPreviousTransition

getType

getID

getClasses

getPseudoClasses

getAttributeSelectors

getLineNumber

getDocumentPath

printCSS

deepEquals

deepHashCode