Class

pl.metastack.metaweb.tag

Img

Related Doc: package tag

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class Img extends state.Tag with HTMLTag

The HTML Image Element (<img>) represents an image of the document.

Usage note:
Browsers do not always display the image referenced by the element. This is the case for non-graphical browsers (including those used by people with vision impairments), if the user chooses not to display images, or if the browser is unable to display the image because it is invalid or an unsupported type. In these cases, the browser may replace the image with the text defined in this element's alt attribute.

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  1. Img
  2. HTMLTag
  3. Tag
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Instance Constructors

  1. new Img()

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Value Members

  1. final def !=(arg0: Any): Boolean

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    Definition Classes
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  2. final def ##(): Int

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  3. def ++=(nodes: Seq[Node]): Unit

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    Definition Classes
    Tag
  4. def +=(node: Node): Unit

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    Definition Classes
    Tag
  5. def -=(node: Node): Unit

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    Definition Classes
    Tag
  6. def :=(node: Node): Unit

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    Tag
  7. final def ==(arg0: Any): Boolean

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    Definition Classes
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  8. val _attributes: Dict[String, Var[Any]]

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    Attributes
    protected
    Definition Classes
    Tag
  9. def accesskey: StateChannel[String]

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    Provides a hint for generating a keyboard shortcut for the current element.

    Provides a hint for generating a keyboard shortcut for the current element. This attribute consists of a space-separated list of characters. The browser should use the first one that exists on the computer keyboard layout.

    Definition Classes
    HTMLTag
  10. def align vertical-align: StateChannel[String]

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    The alignment of the image with respect to its surrounding context.

  11. def alt: StateChannel[String]

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    This attribute defines the alternative text describing the image.

    This attribute defines the alternative text describing the image. Users will see this displayed if the image URL is wrong, the image is not in one of the supported formats, or if the image is not yet downloaded.

    Usage note: Omitting this attribute indicates that the image is a key part of the content, but no textual equivalent is available. Setting this attribute to the empty string indicates that this image is not a key part of the content; non-visual browsers may omit it from rendering.

  12. def append(node: Node): Unit

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    Definition Classes
    Tag
  13. def appendAll(nodes: Seq[Node]): Unit

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    Definition Classes
    Tag
  14. final def asInstanceOf[T0]: T0

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    Definition Classes
    Any
  15. def attribute(attribute: String): Var[Any]

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    Definition Classes
    Tag
  16. def attributes: scala.Predef.Map[String, Any]

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    Definition Classes
    TagTag
  17. def border: StateChannel[String]

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    The width of a border around the image.

  18. def byId[T <: Tag](id: String): T

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    Definition Classes
    Tag
  19. def byIdOpt[T <: Tag](id: String): scala.Option[T]

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    Definition Classes
    Tag
  20. def byTag[T <: Tag](tagName: String): T

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    Definition Classes
    Tag
  21. def byTagOpt[T <: Tag](tag: String): scala.Option[T]

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    Definition Classes
    Tag
  22. def children: Seq[Node]

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    Definition Classes
    TagTag
  23. def class: StateChannel[String]

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    Is a space-separated list of the classes of the element.

    Is a space-separated list of the classes of the element. Classes allows CSS and JavaScript to select and access specific elements via the class selectors or functions like the method Document.getElementsByClassName().

    Definition Classes
    HTMLTag
  24. def clearChildren(): Unit

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    Definition Classes
    Tag
  25. def clone(): AnyRef

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    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  26. def contenteditable: StateChannel[String]

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    Is an enumerated attribute indicating if the element should be editable by the user.

    Is an enumerated attribute indicating if the element should be editable by the user. If so, the browser modifies its widget to allow editing. The attribute must take one of the following values:

    • true or the empty string, which indicates that the element must be editable;
    • false, which indicates that the element must not be editable.
    Definition Classes
    HTMLTag
  27. def contextmenu: StateChannel[String]

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    Is the id of an <menu> to use as the contextual menu for this element.

    Is the id of an <menu> to use as the contextual menu for this element.

    Definition Classes
    HTMLTag
  28. def crossorigin: StateChannel[String]

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    This enumerated attribute indicates if the fetching of the related image must be done using CORS or not.

    This enumerated attribute indicates if the fetching of the related image must be done using CORS or not. CORS-enabled images can be reused in the <canvas> element without being tainted. The allowed values are: <dl> <dt> anonymous </dt>

    A cross-origin request (i.e., with Origin: HTTP header) is performed. But no credential is sent (i.e., no cookie, no X.509 certificate, and no HTTP Basic authentication is sent). If the server does not give credentials to the origin site (by not setting the Access-Control-Allow-Origin: HTTP header), the image will be tainted and its usage restricted.
    <dt> use-credentials </dt>
    A cross-origin request (i.e., with Origin: HTTP header) performed with credential is sent (i.e., a cookie, a certificate, and HTTP Basic authentication is performed). If the server does not give credentials to the origin site (through Access-Control-Allow-Credentials: HTTP header), the image will be tainted and its usage restricted.
    </dl> When not present, the resource is fetched without a CORS request (i.e., without sending the Origin: HTTP header), preventing its non-tainted usage in <canvas> elements. If invalid, it is handled as if the enumerated keyword anonymous was used. See CORS settings attributes for additional information.

  29. def dir: StateChannel[String]

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    Is an enumerated attribute indicating the directionality of the element's text.

    Is an enumerated attribute indicating the directionality of the element's text. It can have the following values:

    • ltr, which means left to right and is to be used for languages that are written from the left to the right (like English);
    • rtl, which means right to left and is to be used for languages that are written from the right to the left (like Arabic);
    • auto, which let the user agent decides. It uses a basic algorithm as it parses the characters inside the element until it finds a character with a strong directionality, then apply that directionality to the whole element.
    Definition Classes
    HTMLTag
  30. def domNode: scala.Option[Any]

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    Definition Classes
    Tag
  31. def draggable: StateChannel[String]

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    Is an enumerated attribute indicating whether the element can be dragged, using the Drag and Drop API.

    Is an enumerated attribute indicating whether the element can be dragged, using the Drag and Drop API. It can have the following values:

    • true, which indicates that the element may be dragged
    • false, which indicates that the element may not be dragged.
    Definition Classes
    HTMLTag
  32. def dropzone: StateChannel[String]

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    Is an enumerated attribute indicating what types of content can be dropped on an element, using the Drag and Drop API.

    Is an enumerated attribute indicating what types of content can be dropped on an element, using the Drag and Drop API. It can have the following values:

    • copy, which indicates that dropping will create a copy of the element that was dragged
    • move, which indicates that the element that was dragged will be moved to this new location.
    • link, will create a link to the dragged data.
    Definition Classes
    HTMLTag
  33. final def eq(arg0: AnyRef): Boolean

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  34. def equals(arg0: Any): Boolean

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  35. val eventProvider: Provider[(String, Seq[Any]), Unit]

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    Definition Classes
    Tag
  36. def events: scala.Predef.Map[String, (Any) ⇒ Unit]

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    Definition Classes
    TagTag
  37. def finalize(): Unit

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    Attributes
    protected[java.lang]
    Definition Classes
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    Annotations
    @throws( classOf[java.lang.Throwable] )
  38. def getAttribute(attr: String): scala.Option[Any]

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    Definition Classes
    TagTag
  39. final def getClass(): Class[_]

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  40. def hashCode(): Int

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  41. def height: StateChannel[String]

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    The intrinsic height of the image in HTML5 CSS pixels, or HTML 4 in pixels or as a percentage.

    The intrinsic height of the image in HTML5 CSS pixels, or HTML 4 in pixels or as a percentage.

  42. def hidden: StateChannel[String]

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    Is a Boolean attribute indicates that the element is not yet, or is no longer, relevant.

    Is a Boolean attribute indicates that the element is not yet, or is no longer, relevant. For example, it can be used to hide elements of the page that can't be used until the login process has been completed. The browser won't render such elements. This attribute must not be used to hide content that could legitimately be shown.

    Definition Classes
    HTMLTag
  43. def hspace: StateChannel[String]

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    The number of pixels of white space to insert to the left and right of the image.

  44. def id: StateChannel[String]

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    Defines a unique identifier (ID) which must be unique in the whole document.

    Defines a unique identifier (ID) which must be unique in the whole document. Its purpose is to identify the element when linking (using a fragment identifier), scripting, or styling (with CSS).

    Definition Classes
    HTMLTag
  45. final def isInstanceOf[T0]: Boolean

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    Definition Classes
    Any
  46. def ismap: StateChannel[String]

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    This Boolean attribute indicates that the image is part of a server-side map.

    This Boolean attribute indicates that the image is part of a server-side map. If so, the precise coordinates of a click are sent to the server.

    Usage note: This attribute is allowed only if the <img> element is a descendant of an <a> element with a valid href attribute.

  47. def itemid: StateChannel[String]

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    Definition Classes
    HTMLTag
  48. def itemprop: StateChannel[String]

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    Definition Classes
    HTMLTag
  49. def itemref: StateChannel[String]

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    Definition Classes
    HTMLTag
  50. def itemscope: StateChannel[String]

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    Definition Classes
    HTMLTag
  51. def itemtype: StateChannel[String]

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    These attributes are related to the WHATWG HTML Microdata feature.

    These attributes are related to the WHATWG HTML Microdata feature.

    Definition Classes
    HTMLTag
  52. def lang: StateChannel[String]

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    Participates in defining the language of the element, the language that non-editable elements are written in or the language that editable elements should be written in.

    Participates in defining the language of the element, the language that non-editable elements are written in or the language that editable elements should be written in. The tag contains one single entry value in the format defines in the Tags for Identifying Languages (BCP47) IETF document. xml:lang has priority over it.

    Definition Classes
    HTMLTag
  53. def longdesc: StateChannel[String]

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    The URL of a description of the image to be displayed, which supplements the alt text.

    The URL of a description of the image to be displayed, which supplements the alt text.

  54. def name: StateChannel[String]

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    A name for the element.

    A name for the element. It is supported in HTML 4 only for backward compatibility. Use the id attribute instead.

  55. final def ne(arg0: AnyRef): Boolean

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    Definition Classes
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  56. val nodeProvider: Provider[Unit, Any]

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    Definition Classes
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  57. final def notify(): Unit

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  58. final def notifyAll(): Unit

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  59. def prepend(node: Node): Unit

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    Definition Classes
    Tag
  60. def remove(node: Node): Unit

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    Definition Classes
    Tag
  61. def replace(reference: Node, node: Node): Unit

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    Definition Classes
    Tag
  62. def set(node: Node): Unit

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    Definition Classes
    Tag
  63. def setAttribute[T](attr: String, value: T): Unit

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    Definition Classes
    Tag
  64. def setChildren(nodes: Seq[Node]): Unit

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    Definition Classes
    Tag
  65. def setEvent[T](event: String, f: (Any) ⇒ Unit): Unit

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    Definition Classes
    Tag
  66. def sizes: StateChannel[String]

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    A list of one or more strings separated by commas indicating a set of source sizes.

    A list of one or more strings separated by commas indicating a set of source sizes. Each source size consists of:

    • a media condition. This must be omitted for the last item.
    • a source size value.

    Source size values specify the intended display size of the image. User agents use the current source size to select one of the sources supplied by the srcset attribute, when those sources are described using width ('w') descriptors. The selected source size affects the intrinsic size of the image (the image’s display size if no CSS styling is applied). If the srcset attribute is absent, or contains no values with a width descriptor, then the sizes attribute has no effect.

  67. def spellcheck: StateChannel[String]

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    Is an enumerated attribute defines whether the element may be checked for spelling errors.

    Is an enumerated attribute defines whether the element may be checked for spelling errors. It may have the following values:

    • true, which indicates that the element should be, if possible, checked for spelling errors;
    • false, which indicates that the element should not be checked for spelling errors.
    Definition Classes
    HTMLTag
  68. def src: StateChannel[String]

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    The image URL.

    The image URL. This attribute is mandatory for the <img> element. On browsers supporting srcset, src is treated like a candidate image with a pixel density descriptor 1x unless an image with this pixel density descriptor is already defined in srcset or srcset contains ' w' descriptors.

  69. def srcset: StateChannel[String]

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    A list of one or more strings separated by commas indicating a set of possible image sources for the user agent to use.

    A list of one or more strings separated by commas indicating a set of possible image sources for the user agent to use. Each string is composed of:

    • a URL to an image,
    • optionally, whitespace followed by one of:
    • a width descriptor, that is a positive integer directly followed by 'w'. The width descriptor is divided by the source size given in the sizes attribute to calculate the effective pixel density.
    • a pixel density descriptor, that is a positive floating point number directly followed by 'x'.

    If no descriptor is specified, the source is assigned the default descriptor: 1x.

    It is invalid to mix width descriptors and pixel density descriptors in the same srcset attribute. Duplicate descriptors (for instance, two sources in the same srcset which are both described with '2x') are invalid, too.

    User agents are given discretion to choose any one of the available sources. This provides them with significant leeway to tailor their selection based on things like user preferences or bandwidth conditions.

  70. def style: StateChannel[String]

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    Contains CSS styling declarations to be applied to the element.

    Contains CSS styling declarations to be applied to the element. Note that it is recommended for styles to be defined in a separate file or files. This attribute and the <style> element have mainly the purpose of allowing for quick styling, for example for testing purposes.

    Definition Classes
    HTMLTag
  71. def subscribe(node: ReadChannel[Node]): ReadChannel[Unit]

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    Definition Classes
    Tag
  72. def subscribeChildren(list: DeltaBuffer[Node]): ReadChannel[Unit]

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    Definition Classes
    Tag
  73. final def synchronized[T0](arg0: ⇒ T0): T0

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    Definition Classes
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  74. def tabindex: StateChannel[String]

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    Is an integer attribute indicates if the element can take input focus (is focusable), if it should participate to sequential keyboard navigation, and if so, at what position.

    Is an integer attribute indicates if the element can take input focus (is focusable), if it should participate to sequential keyboard navigation, and if so, at what position. It can takes several values:

    • a negative value means that the element should be focusable, but should not be reachable via sequential keyboard navigation;
    • 0 means that the element should be focusable and reachable via sequential keyboard navigation, but its relative order is defined by the platform convention;
    • a positive value which means should be focusable and reachable via sequential keyboard navigation; its relative order is defined by the value of the attribute: the sequential follow the increasing number of the tabindex. If several elements share the same tabindex, their relative order follows their relative position in the document).
    Definition Classes
    HTMLTag
  75. val tagName: String

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    Definition Classes
    TagTag
  76. def title: StateChannel[String]

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    Contains a text representing advisory information related to the element it belongs to.

    Contains a text representing advisory information related to the element it belongs to. Such information can typically, but not necessarily, be presented to the user as a tooltip.

    Definition Classes
    HTMLTag
  77. def toString(): String

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    Definition Classes
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  78. def translate: StateChannel[String]

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    Is an enumerated attribute that is used to specify whether an element's attribute values and the values of it s Text node children are to be translated when the page is localized, or whether to leave them unchanged.

    Is an enumerated attribute that is used to specify whether an element's attribute values and the values of it s Text node children are to be translated when the page is localized, or whether to leave them unchanged. It can have the following values:

    • empty string and "yes", which indicates that the element will be translated.
    • "no", which indicates that the element will not be translated.
    Definition Classes
    HTMLTag
  79. def triggerAction(action: String, arguments: Any*): Unit

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    Definition Classes
    Tag
  80. def usemap: StateChannel[String]

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    The partial URL (starting with '#') of an image map associated with the element.

    The partial URL (starting with '#') of an image map associated with the element.

    Usage note: You cannot use this attribute if the <img> element is a descendant of an <a> or <button> element.

  81. def vspace: StateChannel[String]

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    The number of pixels of white space to insert above and below the image.

  82. final def wait(): Unit

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    Definition Classes
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    @throws( ... )
  83. final def wait(arg0: Long, arg1: Int): Unit

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    @throws( ... )
  84. final def wait(arg0: Long): Unit

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    @throws( ... )
  85. def watchAttributes: ReadChannel[Delta[String, Var[Any]]]

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    Definition Classes
    Tag
  86. def watchChildren: ReadChannel[Delta[Node]]

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    Definition Classes
    Tag
  87. def watchEvents: ReadChannel[Delta[String, (Any) ⇒ Unit]]

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    Definition Classes
    Tag
  88. def width: StateChannel[String]

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    The intrinsic width of the image in HTML5 CSS pixels, or HTML 4 in pixels or as a percentage.

    The intrinsic width of the image in HTML5 CSS pixels, or HTML 4 in pixels or as a percentage.

Inherited from HTMLTag

Inherited from state.Tag

Inherited from state.Node

Inherited from Tag

Inherited from Node

Inherited from AnyRef

Inherited from Any

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