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A heading row for a dialog box. This element should be placed inside a dialog element. The header may have a title and a description.

crop, description, title


<?xml version="1.0"?>
<?xml-stylesheet href="chrome://global/skin/global.css" type="text/css"?>
<dialog id="donothing" title="Dialog example"
  <dialogheader title="My dialog" description="Example dialog"/>
  <!-- Other widgets -->



Type: one of the values below
If the label of the element is too big to fit in its given space, the text will be cropped on the side specified by the crop attribute. An ellipsis will be used in place of the cropped text. If the box direction is reversed, the cropping is reversed.
The text will be cropped on its left side in left-to-right text locales, and the right side in right-to-left locales.
The text will be cropped on its right side in left-to-right text locales, and the right side in right-to-left locales.
The text will be cropped on its left side.
The text will be cropped on its right side.
The text will be cropped in the middle, showing both the start and end of the text normally.
The text will be not be cropped using an ellipsis. However, the text will simply be cut off if it is too large. The side depends on the CSS text alignment.
Depending on the platform and theme being used, some elements will have set a maximum width so they will always appear cropped. If you wish to use the value none and the displayed text is larger than this maximum width, you may be able to use the max-width CSS property (or the maxwidth attribute) to override this size. For example, for a menuitem in a menu you can add the following CSS rule when you want to use the value none:
menupopup > menuitem, menupopup > menu { max-width: none; }
Type: string
Descriptive text to appear in addition to the dialog title.
Type: string
The text to appear in the title bar of the window.


Inherited Properties
align, attributes, allowEvents, baseURI, boxObject, builder, childElementCount, childNodes, children, className, clientHeight, clientLeft, clientTop, clientWidth, collapsed, contextMenu, controllers, database, datasources, dir, firstChild, firstElementChild, flex, height, hidden, id, lastChild, lastElementChild, left, localName, maxHeight, maxWidth, menu, minHeight, minWidth, namespaceURI, nextElementSibling, nextSibling, nodeName, nodeType, nodeValue, observes, ordinal, orient, ownerDocument, pack, parentNode, persist, prefix, previousElementSibling, previousSibling, ref, resource, scrollHeight, scrollLeft, scrollTop, scrollWidth, statusText, style, tagName,textContent, tooltip, tooltipText, top, width


Inherited Methods
addEventListener(), appendChild(), blur, click, cloneNode(), compareDocumentPosition, dispatchEvent(), doCommand, focus, getAttribute(), getAttributeNode(), getAttributeNodeNS(), getAttributeNS(), getBoundingClientRect(), getClientRects(), getElementsByAttribute, getElementsByAttributeNS, getElementsByClassName(), getElementsByTagName(), getElementsByTagNameNS(), getFeature, getUserData, hasAttribute(), hasAttributeNS(), hasAttributes(), hasChildNodes(), insertBefore(), isDefaultNamespace(), isEqualNode, isSameNode, isSupported(), lookupNamespaceURI, lookupPrefix, normalize(), querySelector(), querySelectorAll(), removeAttribute(), removeAttributeNode(), removeAttributeNS(), removeChild(), removeEventListener(), replaceChild(), setAttribute(), setAttributeNode(), setAttributeNodeNS(), setAttributeNS(), setUserData

dialog, window

Document Tags and Contributors

 Contributors to this page: Sheppy, pippijn, Mgjbot, Ptak82, Dria, Pmash
 Last updated by: Sheppy,