Đang chuẩn bị liên kết để tải về tài liệu:
Webmaster's Guide to the Wireless Internet part 6

Không đóng trình duyệt đến khi xuất hiện nút TẢI XUỐNG Tải xuống

Webmaster's Guide to the Wireless Internet part 6. The Webmaster’s Guide to the Wireless Internet provides the Wireless Webmaster with all of the tools necessary to build the next generation Internet. Packed with the essential information they need to design, develop, and secure robust, e-commerce enabled wireless Web sites. This book is written for advanced Webmasters who are experienced with conventional Web site design and are now faced with the challenge of creating sites that fit on the display of a Web enabled phone or PDA | 22 Chapter 1 Moving from the Web to Wireless as we understand it on the wired Web. Instead they envisioned a way to give people quick access to targeted information stripped of all embellishments. Palm Inc. refers to this as Web Clipping. Rather than connecting directly with your content server Palm devices generally use an intermediary server called a proxy. This is similar in concept to the WAP gateway but it has quite different capabilities.Web Clipping uses a subset of HTML 3.2 with a few notable changes It doesn t support frames nested tables or a lot of the formatting options of regular HTML. Developing Deploying. How Can I Validate the HTML in My Web Clipping Application The full Document Type Definition DTD which describes in detail the acceptable tags and attributes is available at www.palm.com dev web- clipping-html-dtd-11.dtd. You can specify this DTD in your document and validate your code using the W3C validator at http validator.w3c.org. The Palm.net proxy reads Web pages on behalf of the device and then it compresses them before sending over the air. It will also rewrite any HTML that doesn t conform to the specification including removing graphics wider than the Palm device screen size. However the results of this translation are seldom what you had in mind. In most cases you ll need to either construct new pages specifically for Palm OS or reformat your existing pages so they work on both formats. Visitors using the Palm OS generally won t type a URL into a conventional browser to access your site. Generally they ll download a special Web Clipping Application WCA also previously referred to as a Palm Query Application PQA from your regular Web site then install this on their Palm device.WCAs are simply HTML pages compiled into a special binary format using an application that developers can obtain freely from Palm Inc. One potentially useful feature of Web Clipping that differs substantially from traditional Web authoring is the ability to .