jQuery Cookbook

Name: jQuery Cookbook | Solutions & Examples for jQuery Developers
Brand: O'Reilly
Price: 29.49 EUR
Availability: OnlineOnly

Solutions & Examples for jQuery Developers

Cody Lindley(Autor*in)

O'Reilly (Verlag)

1. Auflage

Erschienen am 9. November 2009

480 Seiten

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Inhalt

Intro
Table of Contents
Foreword
Contributors
Chapter Authors
Tech Editors
Preface
Who This Book Is For
What You'll Learn
jQuery Style and Conventions
Other Options
If You Have Problems Making Examples Work
If You Like (or Don't Like) This Book
Conventions Used in This Book
Using Code Examples
Safari® Books Online
How to Contact Us
Chapter 1. jQuery Basics
1.0 Introduction
Why jQuery?
The jQuery Philosophy
Find some elements and do something with them
Chaining
The jQuery wrapper set
How the jQuery API Is Organized
1.1 Including the jQuery Library Code in an HTML Page
Problem
Solution
Discussion
1.2 Executing jQuery/JavaScript Coded After the DOM Has Loaded but Before Complete Page Load
Problem
Solution
Discussion
1.3 Selecting DOM Elements Using Selectors and the jQuery Function
Problem
Solution
Discussion
1.4 Selecting DOM Elements Within a Specified Context
Problem
Solution
Discussion
1.5 Filtering a Wrapper Set of DOM Elements
Problem
Solution
Discussion
1.6 Finding Descendant Elements Within the Currently Selected Wrapper Set
Problem
Solution
Discussion
1.7 Returning to the Prior Selection Before a Destructive Change
Problem
Solution
Discussion
1.8 Including the Previous Selection with the Current Selection
Problem
Solution
Discussion
1.9 Traversing the DOM Based on Your Current Context to Acquire a New Set of DOM Elements
Problem
Solution
Discussion
1.10 Creating, Operating on, and Inserting DOM Elements
Problem
Solution
Discussion
1.11 Removing DOM Elements
Problem
Solution
Discussion
1.12 Replacing DOM Elements
Problem
Solution
Discussion
1.13 Cloning DOM Elements
Problem
Solution
Discussion
1.14 Getting, Setting, and Removing DOM Element Attributes
Problem
Solution
Discussion
1.15 Getting and Setting HTML Content
Problem
Solution
Discussion
1.16 Getting and Setting Text Content
Problem
Solution
Discussion
1.17 Using the $ Alias Without Creating Global Conflicts
Problem
Solution
Discussion
Chapter 2. Selecting Elements with jQuery
2.0 Introduction
2.1 Selecting Child Elements Only
Problem
Solution
Discussion
2.2 Selecting Specific Siblings
Problem
Solution
Discussion
2.3 Selecting Elements by Index Order
Problem
Solution
Discussion
2.4 Selecting Elements That Are Currently Animating
Problem
Solution
Discussion
2.5 Selecting Elements Based on What They Contain
Problem
Solution
Discussion
2.6 Selecting Elements by What They Don't Match
Problem
Solution
Discussion
2.7 Selecting Elements Based on Their Visibility
Problem
Solution
Discussion
2.8 Selecting Elements Based on Attributes
Problem
Solution
Discussion
2.9 Selecting Form Elements by Type
Problem
Solution
Discussion
2.10 Selecting an Element with Specific Characteristics
Problem
Solution
Discussion
2.11 Using the Context Parameter
Problem
Solution
Discussion
2.12 Creating a Custom Filter Selector
Problem
Solution
Discussion
Chapter 3. Beyond the Basics
3.0 Introduction
3.1 Looping Through a Set of Selected Results
Problem
Solution
Discussion
3.2 Reducing the Selection Set to a Specified Item
Problem
Solution
Discussion
3.3 Convert a Selected jQuery Object into a Raw DOM Object
Problem
Solution
Discussion
3.4 Getting the Index of an Item in a Selection
Problem
Solution
Discussion
3.5 Making a Unique Array of Values from an Existing Array
Problem
Solution
Discussion
3.6 Performing an Action on a Subset of the Selected Set
Problem
Solution
Discussion
3.7 Configuring jQuery Not to Conflict with Other Libraries
Problem
Solution
Discussion
3.8 Adding Functionality with Plugins
Problem
Solution
Discussion
3.9 Determining the Exact Query That Was Used
Problem
Solution
Discussion
Chapter 4. jQuery Utilities
4.0 Introduction
4.1 Detecting Features with jQuery.support
Problem
Solution
Discussion
4.2 Iterating Over Arrays and Objects with jQuery.each
Problem
Solution
Discussion
4.3 Filtering Arrays with jQuery.grep
Problem
Solution
Discussion
4.4 Iterating and Modifying Array Entries with jQuery.map
Problem
Solution
Discussion
4.5 Combining Two Arrays with jQuery.merge
Problem
Solution
Discussion
4.6 Filtering Out Duplicate Array Entries with jQuery.unique
Problem
Solution
Discussion
4.7 Testing Callback Functions with jQuery.isFunction
Problem
Solution
Discussion
4.8 Removing Whitespace from Strings or Form Values with jQuery.trim
Problem
Solution
Discussion
4.9 Attaching Objects and Data to DOM with jQuery.data
Problem
Solution
Discussion
4.10 Extending Objects with jQuery.extend
Problem
Solution
Discussion
Chapter 5. Faster, Simpler, More Fun
5.0 Introduction
5.1 That's Not jQuery, It's JavaScript!
Problem
Solution
Discussion
5.2 What's Wrong with $(this)?
Problem
Solution
Discussion
5.3 Removing Redundant Repetition
Problem
Solution 1
Solution 2
Discussion
5.4 Formatting Your jQuery Chains
Problem
Solution
Discussion
5.5 Borrowing Code from Other Libraries
Problem
Solution
Discussion
5.6 Writing a Custom Iterator
Problem
Solution
Discussion
5.7 Toggling an Attribute
Problem
Solution
Discussion
5.8 Finding the Bottlenecks
Problem
Solution
Discussion
5.9 Caching Your jQuery Objects
Problem
Solution
Discussion
5.10 Writing Faster Selectors
Problem
Solution
Discussion
5.11 Loading Tables Faster
Problem
Solution
Discussion
5.12 Coding Bare-Metal Loops
Problem
Solution
Discussion
5.13 Reducing Name Lookups
Problem
Solution
Discussion
5.14 Updating the DOM Faster with .innerHTML
Problem
Solution
Discussion
5.15 Debugging? Break Those Chains
Problem
Solution
Discussion
5.16 Is It a jQuery Bug?
Problem
Solution
Discussion
5.17 Tracing into jQuery
Problem 1
Solution 1
Problem 2
Solution 2
Discussion
5.18 Making Fewer Server Requests
Problem
Solution
Discussion
5.19 Writing Unobtrusive JavaScript
Problem
Solution
Discussion
5.20 Using jQuery for Progressive Enhancement
Problem
Solution
Discussion
5.21 Making Your Pages Accessible
Problem
Solution
Discussion
Chapter 6. Dimensions
6.0 Introduction
6.1 Finding the Dimensions of the Window and Document
Problem
Solution
Discussion
6.2 Finding the Dimensions of an Element
Problem
Solution
Discussion
6.3 Finding the Offset of an Element
Problem
Solution
Discussion
6.4 Scrolling an Element into View
Problem
Solution: Scrolling the Whole Window
Solution: Scrolling Inside an Element
6.5 Determining Whether an Element Is Within the Viewport
Problem
Solution
6.6 Centering an Element Within the Viewport
Problem
Solution
6.7 Absolutely Positioning an Element at Its Current Position
Problem
Solution
6.8 Positioning an Element Relative to Another Element
Problem
Solution
6.9 Switching Stylesheets Based on Browser Width
Problem
Solutions
Solution 1: Changing the Class on the Body Element
Solution 2: Changing the href Attribute of the Stylesheet That's Responsible for Size-Related Styling
Solution 3: Include All Size-Related Stylesheets in the Page, but Enable Only One at a Time
Discussion
Chapter 7. Effects
7.0 Introduction
Animate Method
Animation Speeds
Effects Template
7.1 Sliding and Fading Elements in and out of View
Problem
Solution
Slide
Fade
Both
Discussion
7.2 Making Elements Visible by Sliding Them Up
Problem
Solution
HTML
CSS
jQuery
Discussion
7.3 Creating a Horizontal Accordion
Problem
Solution
HTML
CSS
jQuery
Discussion
7.4 Simultaneously Sliding and Fading Elements
Solution
Discussion
7.5 Applying Sequential Effects
Problem
Solution
Manual callback
Automatic sequence
Discussion
7.6 Determining Whether Elements Are Currently Being Animated
Problem
Solution
Discussion
7.7 Stopping and Resetting Animations
Problem
Solution
Discussion
7.8 Using Custom Easing Methods for Effects
Problem
Solution
Discussion
7.9 Disabling All Effects
Problem
Solution
Discussion
7.10 Using jQuery UI for Advanced Effects
Problem
Solution
CSS
jQuery
Discussion
Chapter 8. Events
8.0 Introduction
8.1 Attaching a Handler to Many Events
Problem
Solution
Discussion
8.2 Reusing a Handler Function with Different Data
Problem
Solution
Discussion
8.3 Removing a Whole Set of Event Handlers
Problem
Solution
Discussion
How to bind with a namespace?
How to clean up my plugin?
8.4 Triggering Specific Event Handlers
Problem
Solution
Discussion
How to trigger handlers with a certain namespace?
How to trigger handlers that do not have a namespace?
8.5 Passing Dynamic Data to Event Handlers
Problem
Solution
Discussion
Passing extra arguments
Passing a custom event object
Some more examples
What's the difference with event.data?
8.6 Accessing an Element ASAP (Before document.ready)
Problem
Solution
Discussion
Hide an element right away (or another style operation)
Bind event handlers to an element ASAP
Any other situation
Polling
Customly positioned scripts
8.7 Stopping the Handler Execution Loop
Problem
Solution
Discussion
Examples
Simple form validation
Disadvantages of this approach
Killing all events
8.8 Getting the Correct Element When Using event.target
Problem
Solution
Discussion
8.9 Avoid Multiple hover() Animations in Parallel
Problem
Solution
Discussion
Example
Not there yet
8.10 Making Event Handlers Work for Newly Added Elements
Problem
Solution
Discussion
Why do event handlers get lost ?
A little introduction to event delegation
Pros and cons of each approach
Rebinding
Event delegation
Conclusion
Chapter 9. Advanced Events
9.0 Introduction
9.1 Getting jQuery to Work When Loaded Dynamically
Problem
Solution
Discussion
What is jQuery.ready()?
Why was this happening?
9.2 Speeding Up Global Event Triggering
Problem
Solution
Discussion
Pros and cons
Making the listeners functional
9.3 Creating Your Own Events
Problem
Solution
Discussion
Handling every binding to your event
A real-world example
Existing uses for this feature
9.4 Letting Event Handlers Provide Needed Data
Problem
Solution
Discussion
How can we do this with jQuery 1.3+?
How this was achieved before jQuery 1.3
Allowing event handlers to prevent actions
9.5 Creating Event-Driven Plugins
Problem
Solution
Discussion
An example
What happens if an element already has one of these events?
How can I allow others to clean up the added event handlers?
What's the difference with other approaches?
Allowing the plugin to accept commands
Returning an object with methods
9.6 Getting Notified When jQuery Methods Are Called
Problem
Solution
Discussion
Overloading the desired method
Triggering an event prior to the execution
Executing the original method
Triggering an event after the execution
Returning the result
Putting it all together
Where to go from here?
9.7 Using Objects' Methods as Event Listeners
Problem
Solution
Discussion
Where did the node go?
The example
The objects
Binding the methods
Chapter 10. HTML Form Enhancements from Scratch
10.0 Introduction
10.1 Focusing a Text Input on Page Load
Problem
Solution
Discussion
10.2 Disabling and Enabling Form Elements
Problem
Solution 1
Solution 2
Discussion
10.3 Selecting Radio Buttons Automatically
Problem
Solution 1
Solution 2
Discussion
10.4 (De)selecting All Checkboxes Using Dedicated Links
Problem
Solution
Discussion
10.5 (De)selecting All Checkboxes Using a Single Toggle
Problem
Solution
Discussion
10.6 Adding and Removing Select Options
Problem
Solution
Discussion
10.7 Autotabbing Based on Character Count
Problem
Solution
Discussion
10.8 Displaying Remaining Character Count
Problem
Solution
Discussion
10.9 Constraining Text Input to Specific Characters
Problem
Solution
Discussion
10.10 Submitting a Form Using Ajax
Problem
Solution
Discussion
10.11 Validating Forms
Problem
Solution
Discussion
Chapter 11. HTML Form Enhancements with Plugins
11.0 Introduction
Basic Approach
11.1 Validating Forms
Problem
Solution
Discussion
Methods
Custom methods
Rules
Error messages
Dependencies
Custom expressions
Localization
Error element
Layout
Handling the submit
Limitations
11.2 Creating Masked Input Fields
Problem
Solution
Discussion
Limitations
11.3 Autocompleting Text Fields
Problem
Solution
Discussion
11.4 Selecting a Range of Values
Problem
Solution
Discussion
11.5 Entering a Range-Constrained Value
Problem
Solution
Discussion
Google Maps integration
11.6 Uploading Files in the Background
Problem
Solution
Discussion
11.7 Limiting the Length of Text Inputs
Problem
Solution
Discussion
11.8 Displaying Labels Above Input Fields
Problem
Solution
Discussion
11.9 Growing an Input with Its Content
Problem
Solution
Discussion
11.10 Choosing a Date
Problem
Solution
Discussion
Localization
Chapter 12. jQuery Plugins
12.0 Introduction
12.1 Where Do You Find jQuery Plugins?
Problem
Solution
Discussion
Search through the jQuery Plugin Repository
Search through Google Code
Search through GitHub
Perform a Google search
Search through SourceForge
12.2 When Should You Write a jQuery Plugin?
Problem
Solution
Discussion
Build a plugin if there is a potential audience
Know and communicate the level of support you are willing to provide
Plan for participation from others
12.3 Writing Your First jQuery Plugin
Problem
Solution
Writing a custom jQuery method
Writing a custom jQuery function
Discussion
12.4 Passing Options into Your Plugin
Problem
Solution
Discussion
12.5 Using the $ Shortcut in Your Plugin
Problem
Solution
Discussion
12.6 Including Private Functions in Your Plugin
Problem
Solution
Discussion
12.7 Supporting the Metadata Plugin
Problem
Solution
Discussion
12.8 Adding a Static Function to Your Plugin
Problem
Solution
Discussion
12.9 Unit Testing Your Plugin with QUnit
Problem
Solution
Discussion
Chapter 13. Interface Components from Scratch
13.0 Introduction
13.1 Creating Custom Tool Tips
Problem
Solution
Tool tip-HTML code
Tool tip-jQuery code
Discussion
13.2 Navigating with a File-Tree Expander
Problem
Solution
File tree-HTML code
File tree-jQuery code
Discussion
13.3 Expanding an Accordion
Problem
Solution
Accordion-HTML code
Accordion-jQuery code
Discussion
13.4 Tabbing Through a Document
Problem
Solution
Tabs-HTML code
Tabs-jQuery code
Discussion
13.5 Displaying a Simple Modal Window
Problem
Solution
Modal-HTML code
Modal-jQuery code
Discussion
13.6 Building Drop-Down Menus
Problem
Solution
Drop-down-HTML code
Drop-down-jQuery code
Discussion
13.7 Cross-Fading Rotating Images
Problem
Solution
Rotator-HTML code
Rotator-jQuery code
Discussion
13.8 Sliding Panels
Problem
Solution
Panels-HTML code
Panels-jQuery code
Discussion
Chapter 14. User Interfaces with jQuery UI
14.0 Introduction
Interactions
Widgets
Effects
Basic Usage
How This Chapter Is Organized
14.1 Including the Entire jQuery UI Suite
Problem
Solution
Discussion
14.2 Including an Individual jQuery UI Plugin or Two
Problem
Solution
Discussion
14.3 Initializing a jQuery UI Plugin with Default Options
Problem
Solution
Discussion
14.4 Initializing a jQuery UI Plugin with Custom Options
Problem
Solution
Discussion
14.5 Creating Your Very Own jQuery UI Plugin Defaults
Problem
Solution
Discussion
14.6 Getting and Setting jQuery UI Plugin Options
Problem
Solution 1: Getting the Value
Solution 2: Setting the Value
Discussion
14.7 Calling jQuery UI Plugin Methods
Problem
Solution
Discussion
14.8 Handling jQuery UI Plugin Events
Problem
Solution 1: Pass a Callback Function to the Event Name Option
Solution 2: Bind to the Custom Event Using the Event Type
Discussion
14.9 Destroying a jQuery UI Plugin
Problem
Solution
Discussion
14.10 Creating a jQuery UI Music Player
Problem
Solution
HTML5 audio
The music player
Play and pause button
Current and total time labels
Slider track for song position
Progress bar in track to show buffering
Volume slider
Widget background and top styling
Chapter 15. jQuery UI Theming
15.0 Introduction
Understanding the Components of jQuery UI CSS
15.1 Styling jQuery UI Widgets with ThemeRoller
Problem
Solution
Step 1. Open ThemeRoller
Step 2. Create and preview a theme
Step 3. Download the jQuery UI widgets and theme
Step 4. Merge files into your project directory
Step 5. Reference the theme stylesheet in your project
Discussion
15.2 Overriding jQuery UI Layout and Theme Styles
Problem
Solution
Step 1. Review the widget markup and styles for jQuery UI plugins
Step 2. Create an override stylesheet
Step 3. Edit the style rules in your override stylesheet
Scope overrides
Write override rules
Discussion
15.3 Applying a Theme to Non-jQuery UI Components
Problem
Solution
Step 1: Review available Framework classes to identify those you can apply to your components
Step 2: Apply clickable-state Framework classes
Discussion
15.4 Referencing Multiple Themes on a Single Page
Problem
Solution
Step 1. Create another theme using ThemeRoller
Step 2. Scope the new theme and download it
Step 3. Merge files into your project directory
Step 4. Reference the scoped theme stylesheet in your project
15.5 Appendix: Additional CSS Resources
Chapter 16. jQuery, Ajax, Data Formats: HTML, XML, JSON, JSONP
16.0 Introduction
16.1 jQuery and Ajax
Problem
Solution
Discussion
16.2 Using Ajax on Your Whole Site
Problem
Solution
Discussion
16.3 Using Simple Ajax with User Feedback
Problem
Solution
Discussion
16.4 Using Ajax Shortcuts and Data Types
Problem
Solution
Discussion
16.5 Using HTML Fragments and jQuery
Problem
Solution
Discussion
16.6 Converting XML to DOM
Problem
Solution
Discussion
16.7 Creating JSON
Problem
Solution
Discussion
16.8 Parsing JSON
Problem
Solution
Discussion
16.9 Using jQuery and JSONP
Problem
Solution
Discussion
Chapter 17. Using jQuery in Large Projects
17.0 Introduction
17.1 Using Client-Side Storage
Problem
Solution
Discussion
17.2 Saving Application State for a Single Session
Problem
Solution
Discussion
17.3 Saving Application State Between Sessions
Problem
Solution
Discussion
17.4 Using a JavaScript Template Engine
Problem
Solution
Discussion
17.5 Queuing Ajax Requests
Problem
Solution
Discussion
17.6 Dealing with Ajax and the Back Button
Problem
Solution
Discussion
17.7 Putting JavaScript at the End of a Page
Problem
Solution
Discussion
Chapter 18. Unit Testing
18.0 Introduction
18.1 Automating Unit Testing
Problem
Solution
Discussion
18.2 Asserting Results
Problem
Solution
ok( boolean[, message ])
equals( actual, expected[, message ])
same( actual, expected[, message ])
18.3 Testing Synchronous Callbacks
Problem
Solution
Discussion
18.4 Testing Asynchronous Callbacks
Problem
Solution
Discussion
18.5 Testing User Actions
Problem
Solution
Discussion
18.6 Keeping Tests Atomic
Problem
Solution
Discussion
18.7 Grouping Tests
Problem
Solution
Discussion
18.8 Selecting Tests to Run
Problem
Solution
Discussion
Index

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