The goal of this exercise is to add interactivity between two dijits, TextBox and Button.

add TextBox

load TextBox dijit

Add another dojo.require after the former two.

dojo.require("dijit.form.TextBox");

add TextBox dijit

Add the following code before button dijit.

<input id="input" class="medium" name="string" type="text" />
<button id="hello" onclick="log()">Hello Dijit</button>

extra attributes

Notice when adding TextBox, a few extra attributes are specified

• trim, tells dojo to remove leading and tailing spaces in the input
• propercase, tells dojo to capitalize the first letter of each word separated by spaces

augment Button onClick function

In this exercise, when the button is pressed, we want the function to read values in the TextBox first, then output the msg to the console.

dijit.registry

To find the TextBox dijit value, we need to find the TextBox dijit first.
dijit.registry, by its name we can guess, contains information about all the dijits in this page. Therefore we can utilize it to find the TextBox dijit and its value.

get the value

//Find the dijit by its id;
var input = dijit.registry.byId("input");
//Get the value of the TextBox by calling its function getValue
var msg = input.getValue();

wrapping up as a function

Replace var log = console.debug in last example with the following code

var log = function(){
var input = dijit.registry.byId("input");
var msg = input.getValue();
if (msg == ""){
msg = "nothing";
}
console.debug("I was pressed to say " + msg);
}

Finally, modify the onClick attribute of the Button.

<button id="hello" onclick="log()">Hello Dijit</button>

Screenshot

Example

Example: lab004.html
Source Code: lab004.txt

The goal of this exercise is to add a rollover tooltip and add an event to the button created in last exercise.

Add tooltip

Load Tooltip dijit

Add another dojo.require after loading Button dijit.

dojo.require("dijit.form.Button");
dojo.require("dijit.Tooltip");

Add tooltip and attach to the button

Add actual dijit to the body of the web page.
Notice the value of connectId attribute has to be the same with the id of the button dijit. Dojo will know that this tooltip is for the button having the same id.

<button id="hello">Hello Dijit</button>

Press to output in console.

Add an action

Define a function

<script type="text/javascript"><!--
var log = console.debug;
// --></script>

What this code does is to let log point to console.debug function. Therefore when log is called, it will behave like console.debug, which is output a message in the Firefox console.

Add action to the button

Set onClick attribute of the button markup to log().

<button id="hello" onclick="log("I was pressed to say hello.")">Hello Dijit</button>

Screenshot

Example

Example: lab003.html
Source Code: lab003.txt

The goal of this exercise is to add a simple Form dijit to the page, and turn on the Tundra visual theme, bundled with Dojo.

Steps to add a button dijit

Load the module by calling dojo.require

<script type="text/javascript"><!--
dojo.require("dijit.form.Button");
// --></script>

Add dijit to the page as markups.

<button id="hello">Hello Dijit</button>

By now what you’ll see in the page is a normal button that has the same look and feel as your browser form elements.

Screenshot

Turn on theme

djConfig

Dojo has predefined djConfig parameters and are applied as dojo.js is being loaded.

<script src="../js/dojo090/dojo/dojo.js"></script>

Here we need to turn one of the parameters on, parseOnLoad. What it does is to tell Dojo to apply styles to dijits as it goes through the page during page load.

tundra.css

This is the stylesheet for theme tundra. In the file it specifies styles for all dijits having applicable styles. I assume any other themes would have same classes and ids, if any, as this one.

Unlike Dojo 0.4.x, the stylesheets are not automatically loaded and applied and the following statement needs to be added to the head.

@import "../js/dojo090/dijit/themes/tundra/tundra.css";

one more step

Add class=”tundra” to body tag.

Screenshot

Example

Example: lab002.html
Source Code: lab002.txt