Book Image

HTML5 Data and Services Cookbook

Book Image

HTML5 Data and Services Cookbook

Overview of this book

HTML5 is everywhere. From PCs to tablets to smartphones and even TVs, the web is the most ubiquitous application platform and information medium bar. Its becoming a first class citizen in established operating systems such as Microsoft Windows 8 as well as the primary platform of new operating systems such as Google Chrome OS. "HTML5 Data and Services Cookbook" contains over 100 recipes explaining how to utilize modern features and techniques when building websites or web applications. This book will help you to explore the full power of HTML5 - from number rounding to advanced graphics to real-time data binding. "HTML5 Data and Services Cookbook" starts with the display of text and related data. Then you will be guided through graphs and animated visualizations followed by input and input controls. Data serialization, validation and communication with the server as well as modern frameworks with advanced features like automatic data binding and server communication will also be covered in detail.This book covers a fast track into new libraries and features that are part of HTML5!
Table of Contents (21 chapters)
HTML5 Data and Services Cookbook
Credits
About the Authors
About the Reviewers
www.PacktPub.com
Preface
Index

Geographic location input using maps


Since the introduction of the HTML5 geolocation API, reading the user's location became much simpler. However, sometimes we might want to allow the user to correct or verify his location or to specify a location different than their own.

In this chapter, we're going to make a location input that allows the user to specify a location by marking it on a map.

Our location picker will be represented as a link. Upon clicking the link, the user will have the option to search for their location using an input field, and then select the location by clicking on the map.

As with all our map recipes, we're going to use the popular Leaflet (http://leafletjs.com/) map library.

Getting ready

We would like our map input to behave similar to most input fields. We're going to use a drop-down style mechanism, similar to most date picker components. The user will click on a link to modify the location, and a map dropdown will appear as a result. After the user makes their selection...