Legals Porting
From OpenLaszlo
(Difference between revisions)
| Revision as of 14:30, 12 January 2007 Pbr (Talk | contribs) (Porting lzs code to the new Class system) ← Previous diff |
Revision as of 14:31, 12 January 2007 Pbr (Talk | contribs) (→Static Functions) Next diff → |
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| Line 166: | Line 166: | ||
| + | You can ignore this. Tucker fixed it a while back. | ||
| - | + | <strike> | |
| Must move $debug blocks outside the class definition | Must move $debug blocks outside the class definition | ||
| - | <pre> | + | |
| if ($debug) { | if ($debug) { | ||
| //--- | //--- | ||
| } | } | ||
| - | </pre> | ||
| and continue to use the old class notation | and continue to use the old class notation | ||
| + | </strike> | ||
Revision as of 14:31, 12 January 2007
Porting to new class system
Contents |
Defining a Class
Old:
---
LzNode = Class( "LzNode" , null , mvn() );
var mvn = function (){
var f = function ( parent , attrs , children , instcall ){
...
};
return f;
}
New:
initialize() is the class constructor
class LzNode {
function initialize ( parent , attrs , children , instcall ){
...
}
...
}
A static initialize() function runs once for each class
// From LzNode.lzs
static function initialize (prototype) {
// Ensure you have your own private dictionaries, not one
// inherited from your superclass
for (var hash in {setters: true, getters: true, defaultattrs: true,
__LZdelayedSetters: true, earlySetters: true} ) {
if (! prototype.hasOwnProperty(hash)) {
prototype[hash] = new LzInheritedHash(prototype[hash]);
}
}
}
Deriving from a base class:
class LzView extends LzNode {
}
Deriving from a trait:
The need for 'Instance' is only needed is there is no base class.
class LzDataText extends LzDataNode, Instance {
}
Defining variables
LzNode.prototype.defaultattrs = { $hasdefaultattrs : true };
LzNode.prototype.datapath = null;
LzNode.prototype.setters ={
name : "setName" ,
id : "setID" ,
$events : "__LZsetEvents" ,
$refs : "__LZstoreRefs" ,
$delegates : "__LZstoreDelegates" ,
placement : -1 ,
datapath : "setDatapath",
$setters : -1,
$classrootdepth : "__LZsetClassRoot",
$datapath : "__LZmakeDatapath"
}
var defaultattrs = { $hasdefaultattrs : true };
var datapath = null;
var setters ={
name : "setName" ,
id : "setID" ,
$events : "__LZsetEvents" ,
$refs : "__LZstoreRefs" ,
$delegates : "__LZstoreDelegates" ,
placement : -1 ,
datapath : "setDatapath",
$setters : -1,
$classrootdepth : "__LZsetClassRoot",
$datapath : "__LZmakeDatapath"
};
Overriding variable values
OLD:
LzState: LzState.prototype.$isstate = true;
New:
LzNode.lzs: var $isstate = false; LzState.lzs: prototype.$isstate = true;
Static Functions
OLD:
LzView.__LZproxypolicies = [];
LzView.__LZcheckProxyPolicy= function ( url ){
var pol = _root.LzView.__LZproxypolicies;
for ( var i = pol.length-1; i >=0; i-- ){
var resp = pol[ i ] ( url );
if ( resp != null ) return resp;
}
return _root.canvas.proxied;
}
NEW:
static var __LZproxypolicies = [];
//-----------------------------------------------------------------------------
// @keywords private
//-----------------------------------------------------------------------------
static function __LZcheckProxyPolicy ( url ){
var pol = LzView.__LZproxypolicies;
for ( var i = pol.length-1; i >=0; i-- ){
var resp = pol[ i ] ( url );
if ( resp != null ) return resp;
}
return canvas.proxied;
}
You can ignore this. Tucker fixed it a while back.
Must move $debug blocks outside the class definition
if ($debug) { //--- }
and continue to use the old class notation
