WAI-ARIA provides roles, states and properties that act as a bridge between HTML and rich widgets to make dynamic web content and applications more accessible to assistive technologies and people with disabilities. It allows non-standard widgets and dynamic content to be accessed by defining roles like slider, menu and tab, as well as states, properties and live regions to indicate changes to the content. WAI-ARIA has been implemented by most assistive technologies and browsers and can be used even on simple pages, for example by adding landmark roles, required labels and other properties.
Does HTML5 improve website accessibility or make it worse? How have screen readers adapted to the new technologies? Does HTML5 remove the need for WAI-ARIA or the need for accessibility testing all together?
Full slides and resources here:
https://github.com/klamping/html5tx-a11y
WAI ARIA provides semantics and attributes to make web applications more accessible to assistive technologies like screen readers. It defines roles, states, properties, and landmarks to convey the purpose of interface elements to these technologies. While support is still evolving, major browsers and assistive technologies have implemented many ARIA features to help screen reader users understand dynamic content and complex JavaScript applications.
The document discusses the WAI-ARIA standard for improving accessibility of rich internet applications. It provides an overview of ARIA, explaining what it is and how it works with browsers and assistive technologies. It specifically covers ARIA landmark roles and labels, providing code examples and best practices. The goal is to help web developers understand and properly implement ARIA to make components like tabs, menus and other interactive elements accessible.
WAI-ARIA - an introduction to accessible rich internet applications (1 day wo...Patrick Lauke
This document introduces the Accessible Rich Internet Applications (ARIA) specification. It discusses:
1) The need for ARIA to make complex web applications accessible to assistive technologies like screen readers, as traditional HTML elements may not adequately convey semantics.
2) Common interactive widgets and how ARIA attributes like role, state, and properties help expose their purpose and functionality.
3) Best practices for applying ARIA, including using native HTML where possible, and ensuring custom interactive elements are keyboard navigable and have accessible names.
The document provides examples of how to make common structures and widgets like buttons, menus, sliders accessible with ARIA. It emphasizes ARIA enhances, rather than replaces, traditional
WAI-ARIA provides roles, states and properties that act as a bridge between HTML and rich widgets to make dynamic web content and applications more accessible to assistive technologies and people with disabilities. It allows non-standard widgets and dynamic content to be accessed by defining roles like slider, menu and tab, as well as states, properties and live regions to indicate changes to the content. WAI-ARIA has been implemented by most assistive technologies and browsers and can be used even on simple pages, for example by adding landmark roles, required labels and other properties.
Does HTML5 improve website accessibility or make it worse? How have screen readers adapted to the new technologies? Does HTML5 remove the need for WAI-ARIA or the need for accessibility testing all together?
Full slides and resources here:
https://github.com/klamping/html5tx-a11y
WAI ARIA provides semantics and attributes to make web applications more accessible to assistive technologies like screen readers. It defines roles, states, properties, and landmarks to convey the purpose of interface elements to these technologies. While support is still evolving, major browsers and assistive technologies have implemented many ARIA features to help screen reader users understand dynamic content and complex JavaScript applications.
The document discusses the WAI-ARIA standard for improving accessibility of rich internet applications. It provides an overview of ARIA, explaining what it is and how it works with browsers and assistive technologies. It specifically covers ARIA landmark roles and labels, providing code examples and best practices. The goal is to help web developers understand and properly implement ARIA to make components like tabs, menus and other interactive elements accessible.
WAI-ARIA - an introduction to accessible rich internet applications (1 day wo...Patrick Lauke
This document introduces the Accessible Rich Internet Applications (ARIA) specification. It discusses:
1) The need for ARIA to make complex web applications accessible to assistive technologies like screen readers, as traditional HTML elements may not adequately convey semantics.
2) Common interactive widgets and how ARIA attributes like role, state, and properties help expose their purpose and functionality.
3) Best practices for applying ARIA, including using native HTML where possible, and ensuring custom interactive elements are keyboard navigable and have accessible names.
The document provides examples of how to make common structures and widgets like buttons, menus, sliders accessible with ARIA. It emphasizes ARIA enhances, rather than replaces, traditional
MariaDB: 新兴的开源大数据引擎 - this presentation was translated into Chinese by Ni Yan of Nexedi. It was presented in Beijing, China at the Police Big Data Conference.
MariaDB: 新兴的开源大数据引擎 - this presentation was translated into Chinese by Ni Yan of Nexedi. It was presented in Beijing, China at the Police Big Data Conference.
This document summarizes how super() works in different languages like Java, Python, and JavaScript, and then discusses its implementation in KISSY. It notes that in KISSY, callSuper() is used instead of specifying the method name. CallSuper() is built-in and allows calling parent methods without multiple inheritance, instead using extensions, single inheritance, and plugins. The document provides examples of using super() in initialization and method calls for the base and sub classes.
The document discusses KISSY Component System, an infrastructure for building reusable UI components. It describes key concepts like classes, attribute management, base classes, and life cycle methods. It also provides examples of common UI components like draggable, resizable, and controls. Custom components can be built by extending base classes and implementing render and logic code. The KISSY framework supports building complex components and applications with components, containers, and events.
KISSY provides bug fixes, import stylesheets, CSS3 selector support for older browsers, CSS3 animations, touch gestures, optimized component rendering, components using templates, lazy loading tabs, scroll views with plugins like scrollbars and pull-to-refresh, autocomplete comboboxes, and demos including a music player using various KISSY and Gallery modules.
This document discusses various JavaScript and Node.js topics including:
1. Knockout.js is an MVVM library that separates view models and views, allowing views to be bound to view models for automatic updating.
2. ECMAScript 5 introduced useful array and object methods like map, filter, Object.create that simplify programming.
3. Modularization with libraries like Sea.js and KISSY Loader improve maintainability, performance, and debugging of JavaScript applications.
4. Promise libraries like Q and KISSY simplify asynchronous programming by allowing asynchronous calls to be chained together for easier combination and error handling.
This document describes the KISSY DPL (Design Pattern Library) which includes CSS styles and components built with LESS and KISSY. It provides styles and markup for common interface elements like buttons, menus, tables, forms and more. The styles are organized into CSS files for components like overlay, button, menu etc. It demonstrates how to build reusable UI elements with KISSY and provides references for learning LESS and comparing to Twitter Bootstrap.
The document discusses KISSY component API design. It outlines reasons for creating components like ease of development and reusability. It describes principles for API design like providing a contract between users and developers and minimizing waste. It then covers key aspects of KISSY's component API design including structure, subcomponents, subclassing, plugins, events and lifecycles, skins, and creation. Principles for API design discussed are hiding implementation, consistency, simplicity, readability/writability, extensibility, and completeness.