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Theming API

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Theming API

     

Theming API

You can edit or modify theme of widget by modifying 'ui.core.css' and 'ui.theme.css' . These two style sheet contains the framework classes , which can be modify to get the desired result. To keep maintenance simple, restricting changes to just the 'ui.theme.css' file and images is recommended.

Framework Classes

The given below classes (contained in 'ui.core.css' and 'ui.theme.css'  ) are classified below according to their use and functionality :

Layout Helpers

  • .ui-helper-hidden: Applies display: none to elements.
  • .ui-helper-hidden-accessible: Applies accessible hiding to elements (via abs positioning off the page)
  • .ui-helper-reset:  A basic style reset for UI elements. Resets things such as padding, margins, text-decoration, list-style, etc.
  • .ui-helper-clearfix: Applies float wrapping properties to parent elements
  • .ui-helper-zfix: Applies iframe "fix" css to iframe elements when needed in overlays.

Widget Containers

  • .ui-widget: Class to be applied on outer container of all widgets. Applies font family and font size to widget. Also applies same family and 1em font size to child form elements specifically, to combat inheritance issues in Win browsers.
  • .ui-widget-header: Class to be applied to header containers. Applies header container styles to an element and its child text, links, and icons.
  • .ui-widget-content: Class to be applied to content containers. Applies content container styles to an element and its child text, links, and icons. (can be applied to parent or sibling of header)

Interaction States

  • .ui-state-default: Class to be applied to clickable button-like elements. Applies "clickable default" container styles to an element and its child text, links, and icons.
  • .ui-state-hover: Class to be applied on mouseover to clickable button-like elements. Applies "clickable hover" container styles to an element and its child text, links, and icons.
  • .ui-state-focus: Class to be applied on keyboard focus to clickable button-like elements. Applies "clickable hover" container styles to an element and its child text, links, and icons.
  • .ui-state-active: Class to be applied on mousedown to clickable button-like elements. Applies "clickable active" container styles to an element and its child text, links, and icons.

Interaction Cues

  • .ui-state-highlight: Class to be applied to highlighted or selected elements. Applies "highlight" container styles to an element and its child text, links, and icons.
  • .ui-state-error: Class to be applied to error messaging container elements. Applies "error" container styles to an element and its child text, links, and icons.
  • .ui-state-error-text: An additional class that applies just the error text color without background. Can be used on form labels for instance. Also applies error icon color to child icons.
  • .ui-state-disabled: Applies a dimmed opacity to disabled UI elements. Meant to be added in addition to an already-styled element.
  • .ui-priority-primary: Class to be applied to a priority-1 button in situations where button hierarchy is needed. Applies bold text.
  • .ui-priority-secondary: Class to be applied to a priority-2 button in situations where button hierarchy is needed. Applies normal weight text and slight transparency to element.

Icons

States and images

  • .ui-icon: Base class to be applied to an icon element. Sets dimensions to 16px square block, hides inner text, sets background image to "content" state sprite image.
  • Note: .ui-icon class will be given a different sprite background image depending on its parent container. For example, a ui-icon element within a ui-state-default container will get colored according to the ui-state-default's icon color.

Icon types

After declaring a ".ui-icon" class, you can follow up with a second class describing the type of icon you'd like. Icon classes generally follow a syntax of .ui-icon-{icon type}-{icon sub description}-{direction}.

For example, a single triangle icon pointing to the right looks like this: .ui-icon-triangle-1-e .

Misc Visuals

Corner Radius helpers

  • .ui-corner-tl: Applies corner-radius to top left corner of element.
  • .ui-corner-tr: Applies corner-radius to top right corner of element.
  • .ui-corner-bl: Applies corner-radius to bottom left corner of element.
  • .ui-corner-br: Applies corner-radius to bottom right corner of element.
  • .ui-corner-top: Applies corner-radius to both top corners of element.
  • .ui-corner-bottom: Applies corner-radius to both bottom corners of element.
  • .ui-corner-right: Applies corner-radius to both right corners of element.
  • .ui-corner-left: Applies corner-radius to both left corners of element.
  • .ui-corner-all: Applies corner-radius to all 4 corners of element.

Overlay & Shadow

  • .ui-widget-overlay: Applies 100% wxh dimensions to an overlay screen, along with background color/texture, and screen opacity.
  • .ui-widget-shadow: Class to be applied to overlay widget shadow elements. Applies background color/texture, custom corner radius, opacity, top/left offsets and shadow "thickness". Thickness is applied via padding to all sides of a shadow that is set to match the dimensions of the overlay element. Offsets are applied via top and left margins (can be positive or negative).

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Posted on: April 18, 2011

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