Solved

Back/Forward Buttons in Actionscript 3.0 (Saving state of application)

Posted on 2008-10-27
2
1,124 Views
Last Modified: 2013-11-11
Hi All,

I have researched everywhere and I coudn't find a solution for my problem. Our project is 90% completed and all it needs now is creating a Back/Forward functionality like any browser/Photoshop etc.. has.

If someone could help me I would appreciate it very much indeed.

My Problem:
-------------------
1 - I am using Actionscript 3.0.
2 - I am using classes, so all actionscript code is within files etc.
3 - There is only 1 frame, so I cannot go back and forward within frames.

My application is sctructured as follow:

1- I have a background image on the left, which is the are where things will show.
2 - A menu on the right hand side with 8 buttons
      2.1 - Each button has it's own event listeners that change what happens on the left hand side.

e.g.
Button 1 will make the background image change, and display a 24x24 grid.
Each grid square is clickable, and if clicked it will show a screen with some information about a company.

Button 2 will make the background image change, and display a 6x6 grid.
Each grid square when clicked will show another grid with different pictures.

etc..etc..

What I would like:
-------------------------------
I have a back/forward button, and I need to be able to navigate back/forward thru everything that happens within the application.

So using my example above.

If I clicked Button1,
then Button 2,  
then the Back Button,
The action from Button1 will be activated and so it would "make the background image change, and display a 24x24 grid.
Each grid square is clickable, and if clicked it will show a screen with some information about a company."

The same would work if I clicked in the forward button, so


If I clicked Button1,
then Button 2,  
then the Back Button,
The action from Button1 will be activated and so it would "make the background image change, and display a 24x24 grid.
Each grid square is clickable, and if clicked it will show a screen with some information about a company."
Then clicked in the Forward, then it will "will make the background image change, and display a 6x6 grid.
Each grid square when clicked will show another grid with different pictures." (same as button2).

---------------
I don't know if I explained very well, but any help would be much appreciated.

P.s.

The application I am creating is exported as an Air File, so its not using a Browser.

Regards,
Dan

0
Comment
Question by:vibrazy
2 Comments
 
LVL 39

Accepted Solution

by:
blue-genie earned 500 total points
ID: 22843877
hello.
thinking out loud here
if each time you click a button pop it into an array. so the last action will be array[0] - so write a case statement
and based on which item is in the array trigger that code linked to the that btns listeners?
0
 
LVL 5

Author Comment

by:vibrazy
ID: 22848408
Hi blue-genie,

Yeah that is what I had to do. I wish you commented earlier :) Will give you the points tho.

Thanks for your help.

var historyStateCountBack:int = 0;
var historyStateCountNext:int = 0;
var historyFunctions:Array = new Array();
 
 
function init()
{
	//start application
	//1 - set default function to home
	//2 - disable buttons back/next
	historyFunctions[0] = home;
	bk.enabled = false;
	nextbtn.enabled = false;
	//set up program as usual adding listners to buttons etc
	
}
init();
 
 
 
ac1.addEventListener(MouseEvent.CLICK, action1);
ac2.addEventListener(MouseEvent.CLICK, action2);
ac3.addEventListener(MouseEvent.CLICK, action3);
ac4.addEventListener(MouseEvent.CLICK, action4);
ac5.addEventListener(MouseEvent.CLICK, action6("dan",36));
ac6.addEventListener(MouseEvent.CLICK, action6("dan",25));
 
function home(event:MouseEvent)
{
	
	result.text = "Donkey";
	historyStateCountBack = 0;
	historyFunctions[0] = home;
	resetBack();
	addHistory(arguments.callee,event.target.name);
}
 
 
function action1 (event:MouseEvent)
{
	var current_time = new Date(); 
	result.text = "Action1 " + current_time.getHours() + ":" +  current_time.getMinutes() + ":" + current_time.getSeconds();
	
	resetBack();
		
	addHistory(arguments.callee,event.target.name);
 
	
}
function action2 (event:MouseEvent)
{
	var current_time = new Date(); 
	result.text = "Action2 " + current_time.getHours() + ":" +  current_time.getMinutes() + ":" + current_time.getSeconds();
 
	resetBack();
		
	addHistory(arguments.callee,event.target.name);
 
}
function action3 (event:MouseEvent)
{
	var current_time = new Date(); 
	result.text = "Action3 " + current_time.getHours() + ":" +  current_time.getMinutes() + ":" + current_time.getSeconds();
	resetBack();
	
	addHistory(arguments.callee,event.target.name);
 
}
function action4 (event:MouseEvent)
{
	var current_time = new Date(); 
	result.text = "Action4 " + current_time.getHours() + ":" +  current_time.getMinutes() + ":" + current_time.getSeconds();
	
	resetBack();
addHistory(arguments.callee,event.target.name);
	
}
function action5 (event:MouseEvent)
{
	var current_time = new Date(); 
	result.text = "Action5 " + current_time.getHours() + ":" +  current_time.getMinutes() + ":" + current_time.getSeconds();
	
	resetBack();
 
	addHistory(arguments.callee,event.target.name);
	
}
function action6 (s:String,n:int):Function
{
	return function(event:MouseEvent):void
	{
		
		result.text = "Multi " + s + ":" +  n;
		
		resetBack();
	
		addHistory(arguments.callee,event.target.name);
	}
	
}
 
 
function resetBack():void
{
		for(var i:uint = 0; i < historyFunctions.length; i++)
		{
				bk.removeEventListener(MouseEvent.CLICK,historyFunctions[i]);
				nextbtn.removeEventListener(MouseEvent.CLICK,historyFunctions[i]);
		}
}
function addHistory(funcName:*,target:*):void
{
		
			if(target == "bk" || target == "nextbtn")
			{
				if(funcName != home)
				{
					bk.enabled = true;
					nextbtn.enabled = true;
					
					if(target == "bk")
					{
						historyStateCountBack--;
					}
					else
					{
						historyStateCountBack++;
					}
			
					bk.addEventListener(MouseEvent.CLICK,historyFunctions[historyStateCountBack-1]);
					
					if(historyFunctions[historyStateCountBack+1])
					{
						nextbtn.addEventListener(MouseEvent.CLICK,historyFunctions[historyStateCountBack+1]);
					}
				}
				else
				{
					//came from parent
					resetBack();
					nextbtn.addEventListener(MouseEvent.CLICK,historyFunctions[historyStateCountBack+1]);
					
				}
			}
			else
			{
				historyStateCountBack++;
				historyFunctions[historyStateCountBack] = funcName;
		
				bk.enabled = true;
				bk.addEventListener(MouseEvent.CLICK,historyFunctions[historyStateCountBack-1]);
			}
		
 
}

Open in new window

0

Featured Post

Netscaler Common Configuration How To guides

If you use NetScaler you will want to see these guides. The NetScaler How To Guides show administrators how to get NetScaler up and configured by providing instructions for common scenarios and some not so common ones.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
Array is not working ( AS2 ) 4 152
How to display a webpage in a flash 10 361
File drag and drop 6 142
Adobe indesign suite cs5.5   How to enable "indesign" capability? 2 199
This is a very simple example to help those of you who are still migrating from AS2 to AS3 understand the redesigned event model in AS3. In AS2.0, event functions (that is, the function to be performed when an event is fired) were stored as a pro…
This is intended to introduce all collision detection principles in flash, their strengths, weaknesses and workarounds. The main method for Collision Detection in flash is using hitTestObject. But unless you'll be pushing rectangular shapes without …
In this tutorial viewers will learn how to create a basic motion tween animation in Flash Open a new document in Flash: Draw/import an image: Press CTRL + F8 to convert it into a graphic symbol: Select a frame (how long you want the tween to last): …
The goal of the tutorial is to teach the user how to set there setting in Adobe Flash Media Live Encoder and YouTube for optimal video and audio quality.

773 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question