HTML5 Development Fundamentals PREPARING for MTA CERTIFICATION
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Seamless Offloading of Web App Computations from Mobile Device to Edge Clouds Via HTML5 Web Worker Migration
Seamless Offloading of Web App Computations From Mobile Device to Edge Clouds via HTML5 Web Worker Migration Hyuk Jin Jeong Seoul National University SoCC 2019 Virtual Machine & Optimization Laboratory Department of Electrical and Computer Engineering Seoul National University Computation Offloading Mobile clients have limited hardware resources Require computation offloading to servers E.g., cloud gaming or cloud ML services for mobile Traditional cloud servers are located far from clients Suffer from high latency 60~70 ms (RTT from our lab to the closest Google Cloud DC) Latency<50 ms is preferred for time-critical games Cloud data center End device [Kjetil Raaen, NIK 2014] 2 Virtual Machine & Optimization Laboratory Edge Cloud Edge servers are located at the edge of the network Provide ultra low (~a few ms) latency Central Clouds Mobile WiFi APs Small cells Edge Device Cloud Clouds What if a user moves? 3 Virtual Machine & Optimization Laboratory A Major Issue: User Mobility How to seamlessly provide a service when a user moves to a different server? Resume the service at the new server What if execution state (e.g., game data) remains on the previous server? This is a challenging problem Edge computing community has struggled to solve it • VM Handoff [Ha et al. SEC’ 17], Container Migration [Lele Ma et al. SEC’ 17], Serverless Edge Computing [Claudio Cicconetti et al. PerCom’ 19] We propose a new approach for web apps based on app migration techniques 4 Virtual Machine & Optimization Laboratory Outline Motivation Proposed system WebAssembly -
DHTML Effects in HTML Generated from DITA
DHTML Effects in HTML Generated from DITA XML to PDF by RenderX XEP XSL-FO Formatter, visit us at http://www.renderx.com/ 2 | OpenTopic | TOC Contents DHTML Effects in HTML Generated from DITA............................................................3 XML to PDF by RenderX XEP XSL-FO Formatter, visit us at http://www.renderx.com/ OpenTopic | DHTML Effects in HTML Generated from DITA | 3 DHTML Effects in HTML Generated from DITA This topic describes an approach to creating expanding text and other DHTML effects in HTML-based output generated from DITA content. It is common for Help systems to use layering techniques to limit the amount of information presented to the reader. The reader chooses to view the information by clicking on a link. Most layering techniques, including expanding text, dropdown text and popup text, are implemented using Dynamic HTML. Overview The DITA Open Toolkit HTML transformations do not provide for layering effects. However, some changes to the XSL-T files, and the use of outputclassmetadata in the DITA topic content, along with some judicious use of JavaScript and CSS, can deliver these layering effects. Authoring Example In the following example illustrating the technique, a note element is to output as dropdown text, where the note label is used to toggle the display of the note text. The note element is simply marked up with an outputclass distinct attribute value (in this case, hw_expansion). < note outputclass="hw_expansion" type="note">Text of the note</note> Without any modification, the DITA OT will transform the note element to a paragraph element with a CSS class of the outputclass value. -
Introduction to Scalable Vector Graphics
Introduction to Scalable Vector Graphics Presented by developerWorks, your source for great tutorials ibm.com/developerWorks Table of Contents If you're viewing this document online, you can click any of the topics below to link directly to that section. 1. Introduction.............................................................. 2 2. What is SVG?........................................................... 4 3. Basic shapes............................................................ 10 4. Definitions and groups................................................. 16 5. Painting .................................................................. 21 6. Coordinates and transformations.................................... 32 7. Paths ..................................................................... 38 8. Text ....................................................................... 46 9. Animation and interactivity............................................ 51 10. Summary............................................................... 55 Introduction to Scalable Vector Graphics Page 1 of 56 ibm.com/developerWorks Presented by developerWorks, your source for great tutorials Section 1. Introduction Should I take this tutorial? This tutorial assists developers who want to understand the concepts behind Scalable Vector Graphics (SVG) in order to build them, either as static documents, or as dynamically generated content. XML experience is not required, but a familiarity with at least one tagging language (such as HTML) will be useful. For basic XML -
Qumu HTML5 Multicast Extension Deliver Video Across the Enterprise—With No Plugins Required
DATASHEET Qumu HTML5 Multicast Extension Deliver video across the enterprise—with no plugins required What is it? The Qumu HTML5 Multicast Extension is a revolutionary solution to the problem introduced by modern browsers— delivering Multicast video behind the firewall, to users who no longer have browsers that support Microsoft Silverlight. The HTML5 Multicast Extension from Qumu provides a seamless way to play a Multicast live broadcast natively in newer versions of Google Chrome, Internet Explorer, Microsoft Edge and Firefox. How does it work? Deployed with Qumu’s on premise solution, enterprises simply install the extension on each desktop to allow employees to experience live streaming with Multicast on the browser of their choice. By working together with the Qumu VideoNet Edge that originates multicast throughout the corporate network, the HTML5 Multicast Extension provides a complete solution for delivering and rendering multicast video in corporate environment. What are the benefits? Organizations can leverage current infrastructure on the Network and WAN to support multicast in modern browsers The extension supports HTML5 with no additional requirements for Windows Media, Flash, or Silverlight The Qumu HTML5 Multicast Extension delivers high-quality video to the entire organization with minimal network impact Qumu on premise platform customers can expand their video delivery footprint to thousands of users—quickly and cost effectively The extension can be deployed and managed via a software- only solution, 100% behind the firewall. Playlist failover from RTP Multicast to RTSP Unicast is supported, and so are in-band slides and events What are the technical details? Client Support: Formats Supported: · Windows 7, 8.1 and 10 · IE11 (Win10) Live – RTP Multicast, RTSP Unicast · Google Chrome · Microsoft Edge · Firefox Want to Know More? Contact Us. -
COMP 2145 Web Programming
South Central College COMP 2145 Web Programming Common Course Outline Course Information Description This course covers the popular server-side language PHP and Drupal, a popular CMS (Content Management System). It includes important language concepts such as data types, control statements, debugging techniques, the use of SQL (Standard Query Language). PHP will give the student experience with LAMP (Linux, Apache, MySQL, and PHP) . Prerequisites: COMP1140 - Web Development with a C or higher, or a working knowledge of HTML, CSS, and FTP. COMP1130 - Programming Fundamentals with a C or higher, or a working knowledge of at least one programming language. It is strongly recommended that you have a minimum typing speed of at least 35 wpm as well as a working knowledge of Microsoft Access (COMP1125). Instructional Associate Degree Level Total Credits 4.00 Total Hours 64.00 Types of Instruction Instruction Type Credits/Hours Online/lecture Pre/Corequisites C or better in COMP1140 C or better in COMP1130 or equivalent programming experience Course Competencies 1 Install and use PHP on a local server. Learning Objectives Describe Open Source software and why it is effective for improved software development. Draw a picture describing the relationship between client/server objects used by PHP and mySQL. Common Course Outline September, 2016 Install PHP and mySQL and an Apache web server. Write a simple test program using PHP on the local server (http://localhost/ ) Establish a working environment for PHP web page development. Use variables, constants, and environment variables in a PHP program. 2 Utilize HTML forms and PHP to get information from the user. -
AJAX and Jquery L Raw AJAX Handling in JS Is Very Tedious L Jquery Provides Flexible and Strong Support to Handle AJAX Interactions Through a Set of Jquery Functions
AJAX Asynchronous Design in Web Apps IT 4403 Advanced Web and Mobile Applications Jack G. Zheng Fall 2019 Topics l AJAX concepts and technical elements l AJAX implications and impacts l jQuery AJAX l Basic and shorthand methods l Error handling 2 AJAX l AJAX (Asynchronous JavaScript and XML) is a group of interrelated web development techniques used on the client-side to create interactive web applications. l Despite the name, the use of XML is not actually required, nor do the requests need to be asynchronous. 3 First Impression l https://www.google.com Use Chrome’s developer tools to view network communications while typing the search terms. A set of requests have been made to get JSON data from the server as I type in the search term box. Observe the “q” parameter in all URLs. 4 AJAX Model Difference With Ajax, web applications can communicate with servers in the background without a complete page loading after every request/response cycle. http://www.adaptivepath.com /ideas/ajax-new-approach- web-applications/ 5 Traditional Model The client does not generate views/presentations (HTML/CSS). Synchronous communications feature sequential request/response cycles, one after another The server prepares the whole page. http://www.websiteoptimization.com/secrets/ajax/8-1-ajax-pattern.html 6 Ajax Model l With Ajax, web applications can communicate with servers in the background without a complete page loading after every request/response cycle. The client generates views/presentations and update content (partial page) by manipulating DOM. Asynchronous communications feature independent request/response cycles The server prepares partial pages (partial HTML) or just data (XML or JSON). -
HTML5 Indexeddb
HHTTMMLL55 -- IINNDDEEXXEEDDDDBB http://www.tutorialspoint.com/html5/html5_indexeddb.htm Copyright © tutorialspoint.com The indexeddb is a new HTML5 concept to store the data inside user's browser. indexeddb is more power than local storage and useful for applications that requires to store large amount of the data. These applications can run more efficiency and load faster. Why to use indexeddb? The W3C has announced that the Web SQL database is a deprecated local storage specification so web developer should not use this technology any more. indexeddb is an alternative for web SQL data base and more effective than older technologies. Features it stores key-pair values it is not a relational database IndexedDB API is mostly asynchronous it is not a structured query language it has supported to access the data from same domain IndexedDB Before enter into an indexeddb, we need to add some prefixes of implementation as shown below window.indexedDB = window.indexedDB || window.mozIndexedDB || window.webkitIndexedDB || window.msIndexedDB; window.IDBTransaction = window.IDBTransaction || window.webkitIDBTransaction || window.msIDBTransaction; window.IDBKeyRange = window.IDBKeyRange || window.webkitIDBKeyRange || window.msIDBKeyRange if (!window.indexedDB) { window.alert("Your browser doesn't support a stable version of IndexedDB.") } Open an IndexedDB database Before creating a database, we have to prepare some data for the data base.let's start with company employee details. const employeeData = [ { id: "01", name: "Gopal K Varma", age: 35, -
EMERGING TECHNOLOGIES Dymamic Web Page Creation
Language Learning & Technology January 1998, Volume 1, Number 2 http://llt.msu.edu/vol1num2/emerging/ pp. 9-15 (page numbers in PDF differ and should not be used for reference) EMERGING TECHNOLOGIES Dymamic Web Page Creation Robert Godwin-Jones Virginia Comonwealth University Contents: • Plug-ins and Applets • JavaScript • Dynamic HTML and Style Sheets • Instructional Uses • Resource List While remaining a powerful repository of information, the Web is being transformed into a medium for creating truly interactive learning environments, leading toward a convergence of Internet connectivity with the functionality of traditional multimedia authoring tools like HyperCard, Toolbook, and Authorware. Certainly it is not fully interactive yet, but that is undeniably the trend as manifested in the latest (version 4) Web browsers. "Dynamic HTML," incorporated into the new browsers, joins plug-ins, Web forms, Java applets, and JavaScript as options for Web interactivity. Plug-ins and Applets While Web pages are beginning to behave more like interactive applications, traditional authoring tools are themselves becoming Internet-savvy, primarily through the use of "plug-in" versions of players which integrate with Web browsers. The most commonly used plug-in today is Macromedia's "Shockwave," used to Web-enable such applications as Director, Authorware, and Flash. "Shocked" Web pages can be very interactive and provide a visually appealing means of interacting with users (as in some sample ESL exercises from Jim Duber). Plug-ins are easy to use -- they just need to be downloaded and installed. Some come bundled with Netscape and Microsoft's browsers, which simplifies considerably the installation process (and gives developers the confidence that most users will actually have the plug-in installed). -
Coding Your First HTML5 Game
Coding Your First HTML5 Game Randy Hoyt @randyhoyt randyhoyt.com/launchgame @randyhoyt Overview • Code • HTML5 • Games @randyhoyt Overview • Games • HTML5 • Code @randyhoyt Games Games • Games are fun I love games! @randyhoyt A Theory of Fun (2004), by Ralph Koster Games • Games are fun • Games are everywhere I love games! @randyhoyt Homo Ludens (1938), by Johan Huizinga Games • Games are fun • Games are everywhere • Games exercise the brain I love games! @randyhoyt Play engages the prefrontal cortex, responsible for your highest-level cognitive functions – including self- knowledge, memory, mental imagery, and incentive and reward processing. Brain Workout, Life Optimizer, http://trhou.se/WHkaR7 Brain Workout, Life Optimizer, http://trhou.se/WHkaR7 Games • Games are fun • Games are everywhere • Games exercise the brain • Games are practice for the real world I love games! @randyhoyt 7 TED Talks on Gaming, http://trhou.se/gamesTED Games And Me @randyhoyt HTML5 Buzzword Alert! HTML5 and Related Technologies • Canvas @randyhoyt HTML5 and Related Technologies • Canvas • WebGL http://trhou.se/whyWebGL @randyhoyt HTML5 and Related Technologies • Canvas • WebGL http://trhou.se/whyWebGL • WebSocket http://trhou.se/introwebsockets @randyhoyt HTML5 and Related Technologies • Canvas • WebGL http://trhou.se/whyWebGL • WebSocket http://trhou.se/introwebsockets • SVG @randyhoyt HTML5 Games It’s official: with HTML5 today the browser has become a full- fledged gaming platform. HTML5 Gaming, http://html5rocks.com/gaming Behind the Scenes, http://www.cuttherope.ie/dev/ -
Webgl: up and Running
WebGL: Up and Running Tony Parisi O'REILLY' Beijing • Cambridge • Farnham • Köln • Sebastopol • Tokyo Table of Contents Foreword vii Preface ix 1. An Introduction to WebGL 1 WebGL—A Technical Definition 2 3D Graphics—A Primer 4 3D Coordinate Systems 4 Meshes, Polygons, and Vertices 4 Materials, Textures, and Lights 5 Transforms and Matrices 6 Cameras, Perspective, Viewports, and Projections 7 Shaders 7 The WebGL API 9 The Anatomy of a WebGL Application 10 The Canvas and Drawing Context 10 The Viewport 11 Buffers, ArrayBuffer, and Typed Arrays 11 Matrices 12 TheShader 13 Drawing Primitives 14 Chapter Summary 15 2. Your First WebGL Program 17 Three.js—A JavaScript 3D Engine 17 Setting Up Three.j s 19 A Simple Three.js Page 20 A Real Example 22 Shading the Scene 26 Adding a Texture Map 27 Rotating the Object 28 iii The Run Loop and requestAnimationFrame() 28 Bringing the Page to Life 29 Chapter Summary 30 3. Graphics 31 Sim.js—A Simple Simulation Framework for WebGL 32 Creating Meshes 33 Using Materials, Textures, and Lights 38 Types of Lights 38 Creating Serious Realism with Multiple Textures 41 Textures and Transparency 46 Building a Transform Hierarchy 46 Creating Custom Geometry 50 Rendering Points and Lines 54 Point Rendering with Particle Systems 54 Line Rendering 56 Writing a Shader 57 WebGL Shader Basics 57 Shaders in Three.js 59 Chapter Summary 64 4. Animation 67 Animation Basics 67 Frame-Based Animation 67 Time-Based Animation 68 Interpolation and Tweening 69 Keyframes 70 Articulated Animation 70 Skinned Animation 71 Morphs 71 Creating Tweens Using the Tween.js Library 72 Creating a Basic Tween 73 Tweens with Easing 76 Animating an Articulated Model with Keyframes 79 Loading the Model 79 Animating the Model 81 Animating Materials and Lights 84 Animating Textures 86 Animating Skinned Meshes and Morphs 89 Chapter Summary 89 5. -
Document Object Model
Document Object Model CITS3403: Agile Web Development Semester 1, 2021 Introduction • We’ve seen JavaScript core – provides a general scripting language – but why is it so useful for the web? • Client-side JavaScript adds collection of objects, methods and properties that allow scripts to interact with HTML documents dynamic documents client-side programming • This is done by bindings to the Document Object Model (DOM) – “The Document Object Model is a platform- and language-neutral interface that will allow programs and scripts to dynamically access and update the content, structure and style of documents.” – “The document can be further processed and the results of that processing can be incorporated back into the presented page.” • DOM specifications describe an abstract model of a document – API between HTML document and program – Interfaces describe methods and properties – Different languages will bind the interfaces to specific implementations – Data are represented as properties and operations as methods • https://www.w3schools.com/js/js_htmldom.asp The DOM Tree • DOM API describes a tree structure – reflects the hierarchy in the XTML document – example... <html xmlns = "http://www.w3.org/1999/xhtml"> <head> <title> A simple document </title> </head> <body> <table> <tr> <th>Breakfast</th> <td>0</td> <td>1</td> </tr> <tr> <th>Lunch</th> <td>1</td> <td>0</td> </tr> </table> </body> </html> Execution Environment • The DOM tree also includes nodes for the execution environment in a browser • Window object represents the window displaying a document – All properties are visible to all scripts – Global variables are properties of the Window object • Document object represents the HTML document displayed – Accessed through document property of Window – Property arrays for forms, links, images, anchors, … • The Browser Object Model is sometimes used to refer to bindings to the browser, not specific to the current page (document) being rendered. -
Chapter 10 Document Object Model and Dynamic HTML
Chapter 10 Document Object Model and Dynamic HTML The term Dynamic HTML, often abbreviated as DHTML, refers to the technique of making Web pages dynamic by client-side scripting to manipulate the document content and presen- tation. Web pages can be made more lively, dynamic, or interactive by DHTML techniques. With DHTML you can prescribe actions triggered by browser events to make the page more lively and responsive. Such actions may alter the content and appearance of any parts of the page. The changes are fast and e±cient because they are made by the browser without having to network with any servers. Typically the client-side scripting is written in Javascript which is being standardized. Chapter 9 already introduced Javascript and basic techniques for making Web pages dynamic. Contrary to what the name may suggest, DHTML is not a markup language or a software tool. It is a technique to make dynamic Web pages via client-side programming. In the past, DHTML relies on browser/vendor speci¯c features to work. Making such pages work for all browsers requires much e®ort, testing, and unnecessarily long programs. Standardization e®orts at W3C and elsewhere are making it possible to write standard- based DHTML that work for all compliant browsers. Standard-based DHTML involves three aspects: 447 448 CHAPTER 10. DOCUMENT OBJECT MODEL AND DYNAMIC HTML Figure 10.1: DOM Compliant Browser Browser Javascript DOM API XHTML Document 1. Javascript|for cross-browser scripting (Chapter 9) 2. Cascading Style Sheets (CSS)|for style and presentation control (Chapter 6) 3. Document Object Model (DOM)|for a uniform programming interface to access and manipulate the Web page as a document When these three aspects are combined, you get the ability to program changes in Web pages in reaction to user or browser generated events, and therefore to make HTML pages more dynamic.