Download Google Web Toolkit : GWT Java AJAX programming : a practical by Prabhakar Chaganti; Luca Masini; Travis S Schmidt; Rashmi PDF

By Prabhakar Chaganti; Luca Masini; Travis S Schmidt; Rashmi Phadnis; Ved Prakash Jha; All authors

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FlowPanel: A panel that lays out its widgets from left to right just like text flowing across a line. • PopupPanel: A panel that displays its child widgets by popping up or overlaying over other widgets on the page. • StackPanel: A panel that lays out its child widgets by stacking them vertically from top to bottom. The metaphor used is the same as the user interface of Microsoft Outlook. [ 54 ] Chapter 4 We will be using most of these panels to lay out our user interfaces in this chapter and the rest of this book.

Server package. We will create a string array that holds a list of fruits and when the service method is invoked we will return a sub-list of fruits from this array whose names start with the string provided as a parameter. add(items[i]); } } return completionList; } } [ 49 ] Interactive Forms 4. Our server-side implementation is complete. Now we will create the user interface for interacting with the live search service. samples. samples. SamplePanel class. As mentioned at the beginning of this chapter, each of the user interfaces created in this book will be added to a sample application that is similar to the KitchenSink application that is available as one of the sample projects with the GWT download.

This is a nice way for us to dynamically set the style for the checkbox, based on the strength. private String getPasswordStrengthStyle(int passwordStrength) { if (passwordStrength == 3) { return "pwStrength-Weak"; } else if (passwordStrength == 6) { return "pwStrength-Medium"; } else if (passwordStrength == 9) { return "pwStrength-Strong"; } [ 57 ] Interactive Forms else { return ""; } } 7. In the constructor for the PasswordStrengthPanel class, create a HorizontalPanel named strengthPanel, add nine checkboxes to it, and set its style.

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