ooops, I just realized I forgot to CC my answer to the list...
Gilles
-------- Original Message --------
Subject: Re: [Mapbuilder-users] Mapbuilder and Ext js, don't work
together???
Date: Thu, 10 Apr 2008 12:12:52 +0200
From: Gilles Bassière <[EMAIL PROTECTED]>
To: Toan Nguyen <[EMAIL PROTECTED]>
References: <[EMAIL PROTECTED]>
Hi there,
I got a similar problem while using prototype.js. As far as I can
remember Ext is based upon prototype, is it ? If it is, the following
might help :
The problem is that prototype redefine the operator _each() for the
Array class. As a consequence, the for statement behaves differently. A
basic solution I changed for loops from:
for (var myObj in myArray) {
}
to:
var i;
for (i=0; i<myArray.length; i++) {
myObj=myArray[i];
}
I feel like this issue comes from a design fault on the prototype side.
Array is a common class in Javascript and prototype should better define
an alternate PArray class to implement its behavior. Thus it should be
corrected in the prototype library. As a temporary workaround (and for
convenience), I did the modification in the mapbuilder code. Please see
attached patch for FeatureSelectHandler.js.
Regards
Gilles
Toan Nguyen wrote:
Hi all,
I use Mapbuilder to builde my map, and it work well. Now I want to use
Ext JS Library (http://extjs.com/) to create tab, dialog, panel for my
webpage. But when I import Ext JS script into webpage, (just import js
file, haven't create anything yet), the map is blank, I can't see any
layer. And some script don't work anymore. Example, when I click on
mapPanel, I still see selected features, but the feature list is
empty, and error on SelectedFeatureHandler.js
I can't use Ext JS with Mapbuilder?
--
Nguyễn Đình Toán
-------------------------
Neu khong doc duoc tieng Viet, vui long vao menu View --> chon
Encoding --> chon Unicode (UTF-8). Cam on.
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Gilles Bassiere
MAKINA CORPUS
30 rue des Jeuneurs
FR-75002 PARIS
+33 (0) 1 44 82 00 80
http://www.makina-corpus.com
Index: FeatureSelectHandler.js
===================================================================
--- FeatureSelectHandler.js (revision 56)
+++ FeatureSelectHandler.js (revision 57)
@@ -1,4 +1,4 @@
-/*
+/*
License: LGPL as per: http://www.gnu.org/copyleft/lesser.html
$Id: FeatureSelectHandler.js 3739 2007-12-13 22:58:36Z ahocevar $
*/
@@ -88,11 +88,17 @@
// if we hava a plain model, just use it
objRef.sourceModels.push(objRef.model);
}
+ /* The prototype.js library overloads the Array class making the "for (var in array)" structure buggy...
for (var i in objRef.sourceModels) {
objRef.sourceModels[i].addListener('highlightFeature', objRef.highlight, objRef);
objRef.sourceModels[i].addListener('dehighlightFeature', objRef.dehighlight, objRef);
-
}
+ */
+ /* This one works better (actually copied from the prototype.js code) */
+ for (var i = 0, length = objRef.sourceModels.length; i < length; i++) {
+ objRef.sourceModels[i].addListener('highlightFeature', objRef.highlight, objRef);
+ objRef.sourceModels[i].addListener('dehighlightFeature', objRef.dehighlight, objRef);
+ }
// init the control
var layer = objRef.model.getParam('gmlRendererLayer');
@@ -158,7 +164,8 @@
this.onSelect = function(feature) {
if (!feature) return;
var objRef = this.mbFeatureSelectHandler;
- for (var i in objRef.sourceModels) {
+ //for (var i in objRef.sourceModels) {
+ for (var i = 0, length = objRef.sourceModels.length; i < length; i++) {
objRef.sourceModels[i].setParam("mouseoverFeature", feature.fid);
}
// check if onSelect was triggered by a mouse event. If not, do not register for
@@ -182,7 +189,8 @@
this.onUnselect = function(feature) {
if (!feature) return;
var objRef = this.mbFeatureSelectHandler || feature.mbFeatureSelectHandler;
- for (var i in objRef.sourceModels) {
+ //for (var i in objRef.sourceModels) {
+ for (var i = 0, length = objRef.sourceModels.length; i < length; i++) {
objRef.sourceModels[i].setParam("mouseoutFeature", feature.fid);
}
objRef.model.setParam("olFeatureOut", feature);
@@ -240,7 +248,8 @@
this.highlight = function(objRef, fid) {
var model, feature;
var layer = objRef.model.getParam('gmlRendererLayer');
- for (var i in objRef.sourceModels) {
+ //for (var i in objRef.sourceModels) {
+ for (var i = 0, length = objRef.sourceModels.length; i < length; i++) {
model = objRef.sourceModels[i]
if (!layer) return;
if (!fid) {
@@ -267,7 +276,8 @@
this.dehighlight = function(objRef, fid) {
var model, feature;
var layer = objRef.model.getParam('gmlRendererLayer');
- for (var i in objRef.sourceModels) {
+ //for (var i in objRef.sourceModels) {
+ for (var i = 0, length = objRef.sourceModels.length; i < length; i++) {
model = objRef.sourceModels[i];
if (!layer) return;
if (!fid) {
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org:Makina Corpus;GIS
adr;quoted-printable:;;30 rue des Je=C3=BBneurs;Paris;;FR-75011;France
email;internet:[EMAIL PROTECTED]
title:Web GIS developper
tel;work:+33 (0) 1 44 82 00 80
x-mozilla-html:FALSE
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