ActionScript allows you to mark a variable as [Bindable], causing any changes to that variable to have immediate effect all over your application.How would you implement this feature in your favourite programming language?
View 1 RepliesI am using python and webapp framework in app engine for backend and flex 4 for front end.I would like to pass a string form backend to front end, so i write the following code in the main.py:
[Code]...
I have created a flex application in the Python Gae sdk and I got the error 2048, so I put a crossdomain.xml under the static folder.
The crossdomain.xml is following:
<?xml version="1.0"?>
<!DOCTYPE cross-domain-policy SYSTEM "/xml/dtds/cross-domain-policy.dtd">
<cross-domain-policy> [code].....
However, I still got the error 2048. Therefore, I would like to know is anything I need to configure or miss in my case and how to fix the error.
I'm trying to find out if there is a way I could embed a Python back-end into an AIR application? I'm looking to employ an approach similar to the one outlined here to implement the business logic for my application, but additionally, I would like to provide the user with a single binary which they can load. I don't want the user to have to fire up a seperate server process to make this work.
View 3 RepliesI experience strange behavior of sockets in Python (3.2). Client connects to my application using Flash. Most of the time there is nothing unusual but sometimes python crashes in a way that should not have taken place - enter into infinite loops. Below I attach to the loop code and error message in the log. Python hang on bytesRecived = sock.recv(64) and receive b'' witch is visible in log.
code:
try:
buff = ''
[code].........
If I create an object like so:
class Foo {
[Bindable] public var property: String;
}
The class Foo has an implicit event dispatcher to handle property change events. How can I access that without making Foo explicitly extend EventDispatcher?
I have a small question. I am probably misunderstanding something, but when I do :
[Code]....
Does Adobe Flash expose any Automation or hosting interfaces through COM or a DLL in %systemroot%system32? I'm working with Python and wxWidgets to host a flash application to monitor lunar phases.
View 1 Repliesi develop one project on python and upload on google app can i use swf file to import in python web application?
View 1 RepliesIn my flex app I have a public bindable property.I want it so that every time the value of that property changes, a function gets triggered. I tried using ChangeWatchers, but it seems those only apply to built-in components like a text box change.i would like to do that same behavior with a property that changes at runtime.
View 4 RepliesI have a class like this. Property "isPag" is based on filed "ecboardid", I found that when ecboardid is changed, UI controls seem not be able to detect that "isPag" is also changed. So, how to make a property like this bindable?[code]...
View 3 RepliesMy Combobox is not alway updating when I update the ArrayCollection.[code]...
the first time it updates the combobox fine and sometimes it works the 2nd, 3rd, etc time is might update the combo box. After it stops updating the combobox, it never does until I restart the app. I have verified that the ArrayCollection is updated via the debug data, it is just the combobox is not updating the display.
I have Class1 with a read-only bindable property called age:
public class Class1 {
private var _age:int;
[Bindable(event="ageChanged"]
[Code]....
Of course the [Bindable] tag there doesn't make sense. But how can I achieve the same effect?
I believe I can dispatch some sort of ageChanged event from Class2 up to Class1 and then have an event handler in Class1 dispatch another local ageChanged event to which I bind Class2's age property.
I have a Number variable, named isConflict, whose value is passed in from a parent. I would like to put a ChangeWatcher on this item so that a function named changeBGColor will run whenever the value is changed. Within my creationComplete function of init, i have the following:
var isConflictWatch:ChangeWatcher = BindingUtils.bindSetter(changeBGColor, this, "isConflictChain");
I am just just curious as to whether the [Bindable] metadata tag in ActionScript 3 can only be used within the Flex framework, or can it be used in "regular" ActionScript projects where Flex isn't used?
View 1 RepliesIs it possible to use the Bindable compiler setting when using mxml?
I've got a string that I want to make bindable:
<mx:String id="myString">My Text</mx:String>
I could make it bindable in Actionscript, like this:
[Code]...
But it threw a lot of warnings-- other classes were already marked bindable in my App.
How to load images in as3:Load them all at once, for example like this (pseudo as3 code):
for each (var url:String in images){
loader.load(url);
}
[code].....
I'm studying a demo code and it seems to me that an instance of a class is never instantiated, in particular I have this line:
[Code]....
I've got a component called Box.as that has following two properties, and have their getters & setters defined:
private var _busy:Boolean;
private var _errorMessage:String;
In MXML that uses this component I define it like this:
<components:Box skinClass="skins.components.BoxSkin"
busy="{presenter.boxBusy}"
errorMessage="{presenter.boxErrorMessage}"/>
Where presenter variable is defined here in MXML and a Presenter class has boxBusy and boxErrorMessage variables defined as bindable property change events:
[Bindable(event="propertyChange")]
function get boxBusy():Boolean;
function set boxBusy(value:Boolean):void;
[Code]....
PROBLEM is that whenever I change boxErrorMessage for the presenter, I see the affect in MXML but nothing happens at all when I change boxBusy. Is there something extra I need to do with boolean variable?
I have inherited an Adobe AIR application, and am attempting to debug it through Flash Builder 4.5. Within Flash Builder, when I look at one of the MXML files, I see warnings for each use of the [Bindable] tag:[code]And there are no missing semi-colons on the lines preceding each warning as per the suggestion in this blog post.The project is configured to use Flex SDK 3.6.Additionally the file will not load in the designer, with this warning:Design mode: Error during component layout. Choose Design > Refresh to refresh design mode.At runtime I am seeing a blank window - which I assume is the result of the bindings not being triggered. Is this tag not available in Flex SDK 3.6?
View 1 Repliesi need a simple python lib that check the uploaded files to my webserver are flash media (FLV), by reading the flv header (metadata) and not the mimetype extension.
View 1 RepliesI can't use charCode, or keyCode in KeyboardEvent to find out the character pressed, because even if I change the keyboard layout, charCode and keyCode are not change (if press the same key).So, how to find the presssed character, following to the current keyboard layout?
The charCode property is the numeric value of that key in the current character set (the default character set is UTF-8, which supports ASCII).is not correct.
I have a situation where I need to update a DropDownList's dataProvider and selectedItem in a specific order. See the following code ...
<s:DropDownList id="dropDownList"
dataProvider="{someDataProvider}"
selectedItem="{someSelectedItem}" />
In my case, some user interaction produces new values for the bindable variables "someDataProvider", and "someSelectedItem". However, when flex renders the DropDownList, the control's selected value is empty.
The reason for this is that the DropDownList's "selectedItem" property gets bound before the "dataProvider" property. The "dataProvider" needs to be bound first for "selectedItem" to be valid, this is because the new "selectedItem" points into the new "dataProvider".
what is the best practice for updating bindable properties in a specific order? I've come up with a few ways (e.g. using a valueCommit handler), but I wanted to see what the community had to say.
I have the following code:
<fx:Script>
<![CDATA[
import shared.GlobalsManager;
[code].....
If swf file is embedded in html it is easy to call ActionScript methods via ExternalInterface using JavaScript. Now I want to use the swf file outside of a browser and still be able to access its methods, but now I want to use Python to call ActionScript. Is it possible? There is so little information about it in the Internet. Probably I can use AMF (pyAmf) for this, can I?
View 2 Replieshow to output characters from foreign languages in Flex and ActionScript.
To start, I'm just trying to output Cyrillic in a text control, but its just not working.
Ive tried BOM (Byte Order Marks) indicating UTF-8 in the XML file containing the text. I also specified "<?xml version="1.0" encoding="UTF-8"?>" in that file, and also in the actual MXML file. The actual text control is in a seperate AS3 file without a BOM, but I'm compiling everything with -actionscript-file-encoding="UTF-8".
The original cyrillic text came from an html file with a BOM indicating utf-8. I can paste that text into any html file with the same BOM and it displays correctly; take out the BOM and its garbage, so all that is needed is the correct Byte Order Mark at the start of the html file.
How can I send a .png file using python cgi to a flex application?
View 1 RepliesI am calling Python script from flex using HTTP service. How can I send back some values from python to flex app?
View 3 RepliesI am making a simple Python CGI script that collects data(in xml format) from a flex application and I want to insert it into the mysql database . In perl The script is looks like the following...
my @samplexml=$cgi->param("Items");
my $data=$xml->XMLin("@samplexml");
foreach my $e(@{$data->{Group}})
[code].....
I'm having a problem converting a regular expression from Python into Flex. My string is something like this:
SELECT "col", othercol,
othercol3" FROM doesn'tmatter...
Python matches just fine:
>>> re.search('select(.*?)from', 'SELECT "col", othercol,
[Code]..
match always ends up null. What am I doing wrong? I'm sure it's obvious to a seasoned Flex programmer...