jQuery UI 1.7：构建交互式Web应用

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"jQuery.UI.1.7.jQuery用户界面库文字版.pdf" jQuery UI是基于jQuery JavaScript库的一个扩展，提供了丰富的用户界面组件和交互功能。这个版本是1.7，由Dan Wellman编写的《jQuery UI 1.7: The User Interface Library for jQuery》详细介绍了该库的使用方法。本书旨在帮助开发者构建高度互动的Web应用程序，通过jQuery UI提供的即用型小部件来提升用户体验。 jQuery UI 包含了多种可自定义的小部件，这些小部件包括： 1. **对话框(Dialogs)**：提供模态和非模态对话框，用于显示警告、确认或输入信息的弹出窗口。 2. **滑块(Sliders)**：允许用户通过滑动条来选择数值或进行水平/垂直导航。 3. **日期选择器(Datepicker)**：方便用户选择日期，支持多种格式和日期范围设定。 4. **拖放(Drag and Drop)**：实现元素的拖放操作，可以与其他小部件结合，如排序列表。 5. **可排序列表(Sortable Lists)**：使用户可以轻松地重新排列列表项。 6. **可折叠面板(Accordion)**：将多个段落内容压缩成可展开/折叠的形式，节省页面空间。 7. **自动完成(Autocomplete)**：在用户输入时提供建议列表，常用于搜索或输入框。 8. **效果(Effects)**：包括基本动画（如淡入淡出、滑动等）和组合效果，可以自定义速度和方向。 9. **定位(Positioning)**：帮助元素精确对齐到其他元素或屏幕上的特定位置。 10. **主题(Theming)**：通过CSS样式表提供了一套完整的可定制主题，使得UI保持一致的视觉风格。书中详细讲解了如何集成jQuery UI到项目中，以及每个小部件的配置选项、事件和方法。此外，还涵盖了如何自定义主题和优化性能。开发者不仅可以从中学习到如何使用现有的小部件，还能了解如何扩展和创建自己的组件。值得注意的是，虽然此书出版于2009年，描述的是jQuery UI 1.7版本，但jQuery UI至今仍在更新和发展。虽然某些具体细节可能与最新版本有所差异，但基本概念和原理仍然适用。开发者在实际应用时，还需要参考官方文档获取最新信息和更新。总而言之，《jQuery UI 1.7: The User Interface Library for jQuery》是一本实用的指南，适合希望提升Web应用用户体验的前端开发者，通过学习，他们能够快速掌握jQuery UI的各种功能，并将其灵活运用到实际项目中。

Table of Contents

Greedy 224

Droppable methods 228

A drag and drop game 229

Summary 234

Chapter 10: Resizing 235

A basic resizable 236

Resizable options 238

Configuring resize handles 239

Adding additional handle images 240

Defining size limits 241

Resize ghosts 243

Containing the resize 245

Handling the aspect ratio 246

Resizable animations 247

Simultaneous resizing 248

Preventing unwanted resizes 250

Resizable callbacks 250

Resizable methods 252

Resizable tabs 252

Summary 254

Chapter 11: Selecting 255

Basic implementation 256

Selectee class names 258

Configurable options of the selectable component 260

Filtering selectables 260

Cancelling the selection 262

Selectable callbacks 262

Working with vast amounts of selectables 266

Selectable methods 268

A selectable image viewer 270

Styling the image selector 274

Summary 276

Chapter 12: Sorting 277

The default implementation 278

Configuring sortable options 281

Placeholders 287

Sortable helpers 289

Sortable items 290

Connected lists 292

Preface

What this book covers

Chapter 1, Introducing jQuery UI, gives a general overview and introduction to

jQuery UI. You nd out exactly what the library is, where it can be downloaded

from, and where resources for it can be found. We look at the freedom the license

gives you to use the library and how the API has been simplied to give the

components a consistent and easy to use programming model.

In Chapter 2, The CSS Framework, we look in details at the extensive CSS framework

that provides a rich environment for integrated theming via ThemeRoller, or allows

developers to easily supply their own custom themes or skins.

In Chapter 3, Tabs, we look at the tabs component; a simple but effective means of

presenting structured content in an engaging and interactive widget.

Chapter 4, The Accordion Widget, looks at the accordion widget, another component

dedicated to the effective display of content. Highly engaging and interactive, the

accordion makes a valuable addition to any web page and its API is exposed in full

to show exactly how it can be used.

In Chapter 5, The Dialog, we focus on the dialog widget. The dialog behaves in the

same way as a standard browser alert, but it does so in a much less intrusive and

more visitor-friendly manner. We look at how it can be congured and controlled to

provide maximum benet and appeal.

Chapter 6, Slider, looks at the slider widget that provides a less commonly used, but

no less valuable user interface tool for collecting input from your visitors. We look

closely at its API throughout this chapter to see the variety of ways that in which it

can be implemented.

In Chapter 7, Datepicker, we look at the datepicker. This component packs a huge

amount of functionality into an attractive and highly usable tool, allowing your

visitors to effortlessly select dates. We look at the wide range of congurations that

its API makes possible as well as seeing how easy common tasks such as skinning

and localization are made.

In Chapter 8, Progressbar, we look at the new progressbar widget; examining its

compact API and seeing a number of ways in which it can be put to good use in our

web applications.

In Chapter 9, Drag and Drop, we begin looking at the low-level interaction helpers,

tackling rst the related drag-and-droppable components. We look at how they

can be implemented individually and how they can be used together for

maximum effect.

Preface

Chapter 10, Resizing, looks at the resizing component and how it is used with the

dialog widget from earlier in the book. We see how it can be applied to any element

on the page to allow it be resized in a smooth and attractive way.

In Chapter 11, Selecting, we look at the selectable component, which allows us add

behavior to elements on the page and allow them be selected individually or as a

group. We see that this is one component that really brings the desktop and the

browser together as application platforms.

Chapter 12, Sorting, looks at the nal interaction helper—the sortable component.

This is an especially effective component that allows you to create lists on a page

that can be reordered by dragging items to a new position on the list. This is another

component that can really help you to add a high level of professionalism and

interactivity to your site with a minimum of effort.

Chapter 13, UI Effects, is dedicated solely to the special effects that are included with

the library. We look at an array of different effects that allow you to show, hide,

move, and jiggle elements in a variety of attractive and appealing animations.

There is no 'fun with' section at the end of this chapter; the whole chapter is a

'fun with' section.

What you need for this book

A copy of the latest jQuery UI full build (1.7.2 at the time of writing)

A code or text editor

A browser

The code download for the book

Who this book is for

This book is for developers who want to quickly and easily build engaging,

highly interactive interfaces for their web applications, or less commonly, for

embedded applications.

Nokia was the rst mobile phone company to announce that they were adopting

jQuery to power parts of their cell phone operating system. I'm sure that by the time

this book is published there will be more companies adapting the library for their

own needs, and wherever jQuery goes, jQuery UI can follow.

People who are comfortable with HTML, JavaScript, and CSS along with having at

least some experience with jQuery itself will get the most benet from what this book

has to offer. However, no prior knowledge of the UI library itself is required.

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