RE: [flexcoders] Re: HistoryManger state is undefined on loading
I asked the engineer who wrote history
manager:
This is expected behavior.
The history manager saves states upon entry, not exit.
If you've called saveState()
twice, your app is now in the second state. The first press of the Back button
returns to the first saved state. The second press of the Back button returns
the app to its initial state and will call loadState() with an
undefined state object.
Matt
From: flexcoders@yahoogroups.com [mailto:flexcoders@yahoogroups.com] On Behalf Of rockmoyosa
Sent: Thursday, July 14, 2005 1:22
AM
To: flexcoders@yahoogroups.com
Subject: [flexcoders] Re:
HistoryManger state is undefined on loading
Guess I'm right!!.
But anyway, I'm writing a buffer
between the HistoryManager and
Application in which I store my
Model-state(Object).
But but I still got this weird problem with the
first save I make and
if I push the back button the state (yes the
normal procedure with
strings) is undefined.
For example i save twice an object in an array and
than I store the
index in the state Object I want to store.
var state:Object = new Object();
state.currentIndex =this.historyArray.length-1;
When I trace this action the result is:
CurrentIndex: 0
CurrentIndex: 1
Now I push the back button and the loadstate is
executed. When I trace
the incoming state object:
Log.debug(state: +state);
Log.dump(state);
first back :
DEBUG: state: [object Object]
DUMP START
this:Object
|
currentIndex = 0 (string)
Second back:
DEBUG: state: undefined
DUMP START
this = undefined (undefined)
On the third back:
it's a new request or nothing. This is the
expected result.
It's link it's out of sync or something.Twice the
saveState is
executed and twice the loadState is executed. What
is wrong with it.
Please anybody
--- In flexcoders@yahoogroups.com,
rockmoyosa [EMAIL PROTECTED] wrote:
I'm beginning to get the idee that this part
of Flex is pushed in 1.5
(Or what version it was introduced). No
documentation is minimal so
are the supported functionality.
I hope somebody can prove me wrong.
be continued??
--- In flexcoders@yahoogroups.com,
rockmoyosa [EMAIL PROTECTED] wrote:
--- In flexcoders@yahoogroups.com,
rockmoyosa [EMAIL PROTECTED]
wrote:
This thing is really
weird:
first save state:
DEBUG: - saveState
DUMP START
this:Object
| view = false (boolean)
| detailId =
7bd21a76-b716-4501-a196-1acf4265d847 (string)
And if I click on Back:
DEBUG: - loadState
DUMP START
this:Object
| detailId =
7bd21a76-b716-4501-a196-1acf4265d847 (string)
| view = true (string)
What the @[EMAIL PROTECTED] view = true???
... More documentation on the
HistoryManager would be
appreciated. Are perhaps more samples.
I found one but it to damn
simple it doesn't say anything on how
it's working only how to use it for
simple things.
http://www.richinternet.de/blog/index.cfm?mode=entryentry=3CF01C8E-CFBB-A5CA-36BCC797581D2CFB
--- In flexcoders@yahoogroups.com,
jacksodj [EMAIL PROTECTED] wrote:
I personnaly have seen really
flakey behavior from that history
controller. I have posted
before, but have not been able to see a
good resolution
--- In flexcoders@yahoogroups.com,
rockmoyosa [EMAIL PROTECTED]
wrote:
My case:
- saveState is executed
- On Back
loadState is executed.
But.
Than my state is
undefined
private var
changed:Boolean;
public function initHistory():Void {
mx.managers.HistoryManager.register(this);
storeInternalState();
}
public function saveState():Object {
// called by
HistoryManager, tells the component
// to create a
state object and to return it\
var state = new
Object();
state.model =
Model.getInstance();
state.view =
this._scope.m_detailview;
mx.controls.Alert.show
(+this._scope.m_detailview.visible);
Log.debug(hello+state);
return state;
}
public function loadState(state:Object):Void {
// called by
HistoryManager, passes in a state
// object so the
component can rebuild it's state
mx.controls.Alert.show(state: +state.view);
restoreInternalState(state);
}
public function savePresent():Void {
storeInternalState(
);
}
public function storeInternalState():Void {
mx.managers.HistoryManager.save();
}
public function restoreInternalState(state:Object):Void
{
Log.dump(state);
Log.debug
(state.view.visible: +state.view.visible);
if(state.view.visible == true
this._scope.m_detailview.visible
==
false ||
state.view.visible == false
this._scope.m_detailview.visible == true){
toggleView();
}
Model.getInstance
RE: [flexcoders] Re: HistoryManger state is undefined on loading
In looking at the code it looks like
anything that isnt an object will be returned as a string. All strings
turn themselves to true when examined as a Boolean so you may need to do string
comparison instead. Sorry, not much more help than that since I dont
know that code very well.
Matt
From: flexcoders@yahoogroups.com [mailto:flexcoders@yahoogroups.com] On Behalf Of rockmoyosa
Sent: Tuesday, July 12, 2005 12:17
AM
To: flexcoders@yahoogroups.com
Subject: [flexcoders] Re:
HistoryManger state is undefined on loading
I'm beginning to get the idee that this part of Flex is pushed in 1.5
(Or what version it was introduced). No
documentation is minimal so
are the supported functionality.
I hope somebody can prove me wrong.
be continued??
--- In flexcoders@yahoogroups.com,
rockmoyosa [EMAIL PROTECTED] wrote:
--- In flexcoders@yahoogroups.com,
rockmoyosa [EMAIL PROTECTED] wrote:
This thing is really weird:
first save state:
DEBUG: - saveState
DUMP START
this:Object
| view = false (boolean)
| detailId =
7bd21a76-b716-4501-a196-1acf4265d847 (string)
And if I click on Back:
DEBUG: - loadState
DUMP START
this:Object
| detailId =
7bd21a76-b716-4501-a196-1acf4265d847 (string)
| view = true (string)
What the @[EMAIL PROTECTED] view = true??? ...
More documentation on the
HistoryManager would be appreciated. Are
perhaps more samples.
I found one but it to damn
simple it doesn't say anything on how
it's working only how to use it for
simple things.
http://www.richinternet.de/blog/index.cfm?mode=entryentry=3CF01C8E-CFBB-A5CA-36BCC797581D2CFB
--- In flexcoders@yahoogroups.com,
jacksodj [EMAIL PROTECTED] wrote:
I personnaly have seen really
flakey behavior from that history
controller. I have posted before,
but have not been able to see a
good resolution
--- In flexcoders@yahoogroups.com,
rockmoyosa [EMAIL PROTECTED]
wrote:
My case:
- saveState is executed
- On Back
loadState is executed.
But.
Than my state is
undefined
private var changed:Boolean;
public function initHistory():Void {
mx.managers.HistoryManager.register(this);
storeInternalState();
}
public function saveState():Object {
// called by HistoryManager, tells the component
// to create a state object and to
return it\
var state = new Object();
state.model = Model.getInstance();
state.view = this._scope.m_detailview;
mx.controls.Alert.show
(+this._scope.m_detailview.visible);
Log.debug(hello+state);
return state;
}
public function loadState(state:Object):Void {
// called by HistoryManager, passes in a state
// object so the component can rebuild it's
state
mx.controls.Alert.show(state:
+state.view);
restoreInternalState(state);
}
public function savePresent():Void {
storeInternalState( );
}
public function storeInternalState():Void {
mx.managers.HistoryManager.save();
}
public function restoreInternalState(state:Object):Void {
Log.dump(state);
Log.debug
(state.view.visible:
+state.view.visible);
if(state.view.visible == true
this._scope.m_detailview.visible ==
false ||
state.view.visible == false
this._scope.m_detailview.visible
== true){
toggleView();
}
Model.getInstance().restoreInstance(state.model);
}
--
Flexcoders Mailing List
FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt
Search Archives: http://www.mail-archive.com/flexcoders%40yahoogroups.com
--
Flexcoders Mailing List
FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt
Search Archives: http://www.mail-archive.com/flexcoders%40yahoogroups.com
YAHOO! GROUPS LINKS
Visit your group "flexcoders" on the web.
To unsubscribe from this group, send an email to:[EMAIL PROTECTED]
Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
RE: [flexcoders] Re: HistoryManger state is undefined on loading
Yes, I think all history manager
information is stored as strings so type is not going to be maintained and youll
need to deal with that in your loadState method.
Matt
From: flexcoders@yahoogroups.com [mailto:flexcoders@yahoogroups.com] On Behalf Of rockmoyosa
Sent: Thursday, July 07, 2005 7:18
AM
To: flexcoders@yahoogroups.com
Subject: [flexcoders] Re:
HistoryManger state is undefined on loading
I tell what happened. state. objects are now STRINGS(!?)
DUMP START
this:Object
| model
= [object Object] (string)
| view =
false (string)
I can overcome the view by:
var detailVisible = Boolean(state.view ==
true);
But for model it's a different story.
--- In flexcoders@yahoogroups.com,
rockmoyosa [EMAIL PROTECTED] wrote:
My case:
- saveState is executed
- On Back loadState is executed.
But.
Than my state is undefined
private var changed:Boolean;
public
function initHistory():Void {
mx.managers.HistoryManager.register(this);
storeInternalState();
}
public
function saveState():Object {
// called by HistoryManager, tells the component
// to create a state object and to
return it\
var state = new Object();
state.model = Model.getInstance();
state.view = this._scope.m_detailview;
mx.controls.Alert.show(+this._scope.m_detailview.visible);
Log.debug(hello+state);
return state;
}
public
function loadState(state:Object):Void {
// called by HistoryManager, passes in a state
// object so the component can rebuild it's
state
mx.controls.Alert.show(state:
+state.view);
restoreInternalState(state);
}
public
function savePresent():Void {
storeInternalState( );
}
public
function storeInternalState():Void {
mx.managers.HistoryManager.save();
}
public
function restoreInternalState(state:Object):Void {
Log.dump(state);
Log.debug(state.view.visible:
+state.view.visible);
if(state.view.visible == true
this._scope.m_detailview.visible ==
false ||
state.view.visible == false
this._scope.m_detailview.visible == true){
toggleView();
}
Model.getInstance().restoreInstance(state.model);
}
--
Flexcoders Mailing List
FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt
Search Archives: http://www.mail-archive.com/flexcoders%40yahoogroups.com
--
Flexcoders Mailing List
FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt
Search Archives: http://www.mail-archive.com/flexcoders%40yahoogroups.com
YAHOO! GROUPS LINKS
Visit your group "flexcoders" on the web.
To unsubscribe from this group, send an email to:[EMAIL PROTECTED]
Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
