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Class

TextProxy (engine/view)

@ckeditor/ckeditor5-engine/src/view/textproxy

class
See source

TextProxy is a wrapper for substring of Text. Instance of this class is created by TreeWalker when only a part of Text needs to be returned.

TextProxy has an API similar to Text and allows to do most of the common tasks performed on view nodes.

Note: Some TextProxy instances may represent whole text node, not just a part of it. See isPartial.

Note: TextProxy is a readonly interface.

Note: TextProxy instances are created on the fly basing on the current state of parent Text. Because of this it is highly unrecommended to store references to `TextProxy instances because they might get invalidated due to operations on Document. Also TextProxy is not a Node so it can not be inserted as a child of Element.

TextProxy instances are created by view tree walker. You should not need to create an instance of this class by your own.

Filtering

Properties

  • readonly

    data : string

    See source

    Text data represented by this text proxy.

  • readonly

    document : null | Document

    See source

    View document that owns this text proxy, or null if the text proxy is inside document fragment.

  • readonly

    isPartial : boolean

    See source

    Flag indicating whether TextProxy instance covers only part of the original text node (true) or the whole text node (false).

    This is false when text proxy starts at the very beginning of textNode (offsetInText equals 0) and text proxy sizes is equal to text node size.

  • readonly

    offsetInText : number

    See source

    Offset in the textNode where this TextProxy instance starts.

  • readonly

    offsetSize : number

    See source

    Offset size of this node.

  • readonly

    parent : null | Element | DocumentFragment

    See source

    Parent of this text proxy, which is same as parent of text node represented by this text proxy.

  • readonly

    root : Node | DocumentFragment

    See source

    Root of this text proxy, which is same as root of text node represented by this text proxy.

  • readonly

    textNode : Text

    See source

    Reference to the Text element which TextProxy is a substring.

Methods

  • internal

    constructor( textNode, offsetInText, length )

    See source

    Creates a text proxy.

    Parameters

    textNode : Text

    Text node which part is represented by this text proxy.

    offsetInText : number

    Offset in text node from which the text proxy starts.

    length : number

    Text proxy length, that is how many text node's characters, starting from offsetInText it represents.

  • getAncestors( options = { [options.includeSelf], [options.parentFirst] } ) → Array<Text | Element | DocumentFragment>

    See source

    Returns ancestors array of this text proxy.

    Parameters

    options : object

    Options object.

    Properties
    [ options.includeSelf ] : boolean

    When set to true, textNode will be also included in parent's array.

    [ options.parentFirst ] : boolean

    When set to true, array will be sorted from text proxy parent to root element, otherwise root element will be the first item in the array.

    Defaults to {}

    Returns

    Array<Text | Element | DocumentFragment>

    Array with ancestors.

  • inherited

    is( type ) → this is Element | AttributeElement | ContainerElement | EditableElement | EmptyElement | RawElement | RootEditableElement | UIElement

    See source

    Checks whether this object is of type Element or its subclass.

    element.is( 'element' ); // -> true
element.is( 'node' ); // -> true
element.is( 'view:element' ); // -> true
element.is( 'view:node' ); // -> true

element.is( 'model:element' ); // -> false
element.is( 'documentSelection' ); // -> false

    Assuming that the object being checked is an element, you can also check its name:

    element.is( 'element', 'img' ); // -> true if this is an <img> element
text.is( 'element', 'img' ); -> false

    Parameters

    type : 'element' | 'view:element'

    Returns

    this is Element | AttributeElement | ContainerElement | EditableElement | EmptyElement | RawElement | RootEditableElement | UIElement

  • inherited

    is( type ) → this is AttributeElement

    See source

    Checks whether this object is of type AttributeElement.

    attributeElement.is( 'attributeElement' ); // -> true
attributeElement.is( 'element' ); // -> true
attributeElement.is( 'node' ); // -> true
attributeElement.is( 'view:attributeElement' ); // -> true
attributeElement.is( 'view:element' ); // -> true
attributeElement.is( 'view:node' ); // -> true

attributeElement.is( 'model:element' ); // -> false
attributeElement.is( 'documentFragment' ); // -> false

    Assuming that the object being checked is an attribute element, you can also check its name:

    attributeElement.is( 'element', 'b' ); // -> true if this is a bold element
attributeElement.is( 'attributeElement', 'b' ); // -> same as above
text.is( 'element', 'b' ); -> false

    Parameters

    type : 'attributeElement' | 'view:attributeElement'

    Returns

    this is AttributeElement

  • inherited

    is( type ) → this is EditableElement | RootEditableElement

    See source

    Checks whether this object is of type EditableElement or its subclass.

    editableElement.is( 'editableElement' ); // -> true
editableElement.is( 'element' ); // -> true
editableElement.is( 'node' ); // -> true
editableElement.is( 'view:editableElement' ); // -> true
editableElement.is( 'view:element' ); // -> true
editableElement.is( 'view:node' ); // -> true

editableElement.is( 'model:element' ); // -> false
editableElement.is( 'documentFragment' ); // -> false

    Assuming that the object being checked is an editbale element, you can also check its name:

    editableElement.is( 'element', 'div' ); // -> true if this is a div element
editableElement.is( 'editableElement', 'div' ); // -> same as above
text.is( 'element', 'div' ); -> false

    Parameters

    type : 'editableElement' | 'view:editableElement'

    Returns

    this is EditableElement | RootEditableElement

  • inherited

    is( type ) → this is RawElement

    See source

    Checks whether this object is of type RawElement.

    rawElement.is( 'rawElement' ); // -> true
rawElement.is( 'element' ); // -> true
rawElement.is( 'node' ); // -> true
rawElement.is( 'view:rawElement' ); // -> true
rawElement.is( 'view:element' ); // -> true
rawElement.is( 'view:node' ); // -> true

rawElement.is( 'model:element' ); // -> false
rawElement.is( 'documentFragment' ); // -> false

    Assuming that the object being checked is a raw element, you can also check its name:

    rawElement.is( 'img' ); // -> true if this is an img element
rawElement.is( 'rawElement', 'img' ); // -> same as above
text.is( 'img' ); -> false

    Parameters

    type : 'rawElement' | 'view:rawElement'

    Returns

    this is RawElement

  • inherited

    is( type ) → this is UIElement

    See source

    Checks whether this object is of type UIElement.

    uiElement.is( 'uiElement' ); // -> true
uiElement.is( 'element' ); // -> true
uiElement.is( 'node' ); // -> true
uiElement.is( 'view:uiElement' ); // -> true
uiElement.is( 'view:element' ); // -> true
uiElement.is( 'view:node' ); // -> true

uiElement.is( 'model:element' ); // -> false
uiElement.is( 'documentFragment' ); // -> false

    Assuming that the object being checked is an ui element, you can also check its name:

    uiElement.is( 'element', 'span' ); // -> true if this is a span ui element
uiElement.is( 'uiElement', 'span' ); // -> same as above
text.is( 'element', 'span' ); -> false

    Parameters

    type : 'uiElement' | 'view:uiElement'

    Returns

    this is UIElement

  • inherited

    is( type ) → this is DocumentFragment

    See source

    hecks whether this object is of type DocumentFragment.

    docFrag.is( 'documentFragment' ); // -> true
docFrag.is( 'view:documentFragment' ); // -> true

docFrag.is( 'model:documentFragment' ); // -> false
docFrag.is( 'element' ); // -> false
docFrag.is( 'node' ); // -> false

    Parameters

    type : 'documentFragment' | 'view:documentFragment'

    Returns

    this is DocumentFragment

  • inherited

    is( type ) → this is Position

    See source

    Checks whether this object is of type Position.

    position.is( 'position' ); // -> true
position.is( 'view:position' ); // -> true

position.is( 'model:position' ); // -> false
position.is( 'element' ); // -> false
position.is( 'range' ); // -> false

    Parameters

    type : 'position' | 'view:position'

    Returns

    this is Position

  • inherited

    is( type ) → this is Selection | DocumentSelection

    See source

    Checks whether this object is of type Selection or DocumentSelection.

    selection.is( 'selection' ); // -> true
selection.is( 'view:selection' ); // -> true

selection.is( 'model:selection' ); // -> false
selection.is( 'element' ); // -> false
selection.is( 'range' ); // -> false

    Parameters

    type : 'selection' | 'view:selection'

    Returns

    this is Selection | DocumentSelection

  • inherited

    is( type, name ) → boolean

    See source

    Checks whether the object is of type Element or its subclass and has the specified name.

    Type parameters

    N : extends string

    Parameters

    type : 'element' | 'view:element'
    name : N

    Returns

    boolean

  • inherited

    is( type, name ) → boolean

    See source

    Checks whether the object is of type ContainerElement or its subclass and has the specified name.

    Type parameters

    N : extends string

    Parameters

    type : 'containerElement' | 'view:containerElement'
    name : N

    Returns

    boolean

  • inherited

    is( type, name ) → boolean

    See source

    Checks whether the object is of type EmptyElement has the specified name.

    Type parameters

    N : extends string

    Parameters

    type : 'emptyElement' | 'view:emptyElement'
    name : N

    Returns

    boolean

  • inherited

    is( type, name ) → boolean

    See source

    Checks whether the object is of type RootEditableElement and has the specified name.

    Type parameters

    N : extends string

    Parameters

    type : 'rootElement' | 'view:rootElement'
    name : N

    Returns

    boolean

  • inherited

    is( type, name ) → boolean

    See source

    Checks whether the object is of type UIElement and has the specified name.

    Type parameters

    N : extends string

    Parameters

    type : 'uiElement' | 'view:uiElement'
    name : N

    Returns

    boolean

  • inherited

    is( type, name ) → boolean

    See source

    Checks whether the object is of type RawElement and has the specified name.

    Type parameters

    N : extends string

    Parameters

    type : 'rawElement' | 'view:rawElement'
    name : N

    Returns

    boolean

  • inherited

    is( type, name ) → boolean

    See source

    Checks whether the object is of type EditableElement or its subclass and has the specified name.

    Type parameters

    N : extends string

    Parameters

    type : 'editableElement' | 'view:editableElement'
    name : N

    Returns

    boolean

  • inherited

    is( type, name ) → boolean

    See source

    Checks whether the object is of type AttributeElement and has the specified name.

    Type parameters

    N : extends string

    Parameters

    type : 'attributeElement' | 'view:attributeElement'
    name : N

    Returns

    boolean

  • inherited

    is( type ) → this is DocumentSelection

    See source

    Checks whether this object is of type DocumentSelection.

    `docSelection.is( 'selection' ); // -> true
docSelection.is( 'documentSelection' ); // -> true
docSelection.is( 'view:selection' ); // -> true
docSelection.is( 'view:documentSelection' ); // -> true

docSelection.is( 'model:documentSelection' ); // -> false
docSelection.is( 'element' ); // -> false
docSelection.is( 'node' ); // -> false

    Parameters

    type : 'documentSelection' | 'view:documentSelection'

    Returns

    this is DocumentSelection

  • inherited

    is( type ) → this is Range

    See source

    Checks whether this object is of type Range.

    range.is( 'range' ); // -> true
range.is( 'view:range' ); // -> true

range.is( 'model:range' ); // -> false
range.is( 'element' ); // -> false
range.is( 'selection' ); // -> false

    Parameters

    type : 'range' | 'view:range'

    Returns

    this is Range

  • inherited

    is( type ) → this is TextProxy

    See source

    Checks whether this object is of type TextProxy.

    textProxy.is( '$textProxy' ); // -> true
textProxy.is( 'view:$textProxy' ); // -> true

textProxy.is( 'model:$textProxy' ); // -> false
textProxy.is( 'element' ); // -> false
textProxy.is( 'range' ); // -> false

    Note: Until version 20.0.0 this method wasn't accepting '$textProxy' type. The legacy 'textProxy' type is still accepted for backward compatibility.

    Parameters

    type : '$textProxy' | 'view:$textProxy'

    Returns

    this is TextProxy

  • inherited

    is( type ) → this is Text

    See source

    Checks whether this object is of type Text.

    text.is( '$text' ); // -> true
text.is( 'node' ); // -> true
text.is( 'view:$text' ); // -> true
text.is( 'view:node' ); // -> true

text.is( 'model:$text' ); // -> false
text.is( 'element' ); // -> false
text.is( 'range' ); // -> false

    Parameters

    type : '$text' | 'view:$text'

    Returns

    this is Text

  • inherited

    is( type ) → this is RootEditableElement

    See source

    Checks whether this object is of type RootEditableElement.

    rootEditableElement.is( 'rootElement' ); // -> true
rootEditableElement.is( 'editableElement' ); // -> true
rootEditableElement.is( 'element' ); // -> true
rootEditableElement.is( 'node' ); // -> true
rootEditableElement.is( 'view:editableElement' ); // -> true
rootEditableElement.is( 'view:element' ); // -> true
rootEditableElement.is( 'view:node' ); // -> true

rootEditableElement.is( 'model:element' ); // -> false
rootEditableElement.is( 'documentFragment' ); // -> false

    Assuming that the object being checked is a root editable element, you can also check its name:

    rootEditableElement.is( 'element', 'div' ); // -> true if this is a div root editable element
rootEditableElement.is( 'rootElement', 'div' ); // -> same as above
text.is( 'element', 'div' ); -> false

    Parameters

    type : 'rootElement' | 'view:rootElement'

    Returns

    this is RootEditableElement

  • inherited

    is( type ) → this is EmptyElement

    See source

    Checks whether this object is of type EmptyElement.

    emptyElement.is( 'emptyElement' ); // -> true
emptyElement.is( 'element' ); // -> true
emptyElement.is( 'node' ); // -> true
emptyElement.is( 'view:emptyElement' ); // -> true
emptyElement.is( 'view:element' ); // -> true
emptyElement.is( 'view:node' ); // -> true

emptyElement.is( 'model:element' ); // -> false
emptyElement.is( 'documentFragment' ); // -> false

    Assuming that the object being checked is an empty element, you can also check its name:

    emptyElement.is( 'element', 'img' ); // -> true if this is a img element
emptyElement.is( 'emptyElement', 'img' ); // -> same as above
text.is( 'element', 'img' ); -> false

    Parameters

    type : 'emptyElement' | 'view:emptyElement'

    Returns

    this is EmptyElement

  • inherited

    is( type ) → this is ContainerElement | EditableElement | RootEditableElement

    See source

    Checks whether this object is of type ContainerElement or its subclass.

    containerElement.is( 'containerElement' ); // -> true
containerElement.is( 'element' ); // -> true
containerElement.is( 'node' ); // -> true
containerElement.is( 'view:containerElement' ); // -> true
containerElement.is( 'view:element' ); // -> true
containerElement.is( 'view:node' ); // -> true

containerElement.is( 'model:element' ); // -> false
containerElement.is( 'documentFragment' ); // -> false

    Assuming that the object being checked is a container element, you can also check its name:

    containerElement.is( 'element', 'div' ); // -> true if this is a div container element
containerElement.is( 'contaienrElement', 'div' ); // -> same as above
text.is( 'element', 'div' ); -> false

    Parameters

    type : 'containerElement' | 'view:containerElement'

    Returns

    this is ContainerElement | EditableElement | RootEditableElement

  • inherited

    is( type ) → this is Text | Node | Element | AttributeElement | ContainerElement | EditableElement | EmptyElement | RawElement | RootEditableElement | UIElement

    See source

    Checks whether this object is of type Node or its subclass.

    This method is useful when processing view objects that are of unknown type. For example, a function may return a DocumentFragment or a Node that can be either a text node or an element. This method can be used to check what kind of object is returned.

    someObject.is( 'element' ); // -> true if this is an element
someObject.is( 'node' ); // -> true if this is a node (a text node or an element)
someObject.is( 'documentFragment' ); // -> true if this is a document fragment

    Since this method is also available on a range of model objects, you can prefix the type of the object with model: or view: to check, for example, if this is the model's or view's element:

    viewElement.is( 'view:element' ); // -> true
viewElement.is( 'model:element' ); // -> false

    By using this method it is also possible to check a name of an element:

    imgElement.is( 'element', 'img' ); // -> true
imgElement.is( 'view:element', 'img' ); // -> same as above, but more precise

    Parameters

    type : 'node' | 'view:node'

    Returns

    this is Text | Node | Element | AttributeElement | ContainerElement | EditableElement | EmptyElement | RawElement | RootEditableElement | UIElement