Dynamic management of area with URLs - #84

git-svn-id: http://www.peacefrogs.net/svn/chimere/trunk@69 9215b0d5-fb2c-4bbd-8d3e-bd2e9090e864

1 files changed, 17 insertions, 5 deletions

diff --git a/chimere/static/base.js b/chimere/static/base.js
index 3c7c575..449cc0f 100644
--- a/chimere/static/base.js
+++ b/chimere/static/base.js
@@ -1,5 +1,5 @@
 /* base function shared by some pages */
-/* Copyright (C) 2009  Étienne Loks  <etienne.loks_AT_peacefrogsDOTnet>
+/* Copyright (C) 2009-2010  Étienne Loks <etienne.loks_AT_peacefrogsDOTnet>
 
 This program is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License as
@@ -17,6 +17,9 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 See the file COPYING for details.
 */
 
+var default_area;
+var area_name;
+
 /* show a block panel */
 function show(id){
     document.getElementById(id).style.display = 'block';
@@ -30,7 +33,9 @@ function hide(id){
 function saveExtent() {
     /* save the current extent in a cookie */
     if(!map) return;
-    document.cookie = "MAP_EXTENT=" + map.getExtent().toArray().join('_')
+    var extent_key = 'MAP_EXTENT';
+    if (area_name){ extent_key = extent_key + '_' + area_name; }
+    document.cookie = extent_key + "=" + map.getExtent().toArray().join('_')
                       + ';path="/"';
 }
 
@@ -38,10 +43,12 @@ function getExtent() {
     /* get the current extent from a cookie */
     var cookies = document.cookie.split(';');
     var map_extent;
+    var extent_key = 'MAP_EXTENT';
+    if (area_name){ extent_key = extent_key + '_' + area_name; }
     for (i in cookies){
         var items = cookies[i].split('=');
         key = items[0].split(' ').join('');
-        if (key == 'MAP_EXTENT'){
+        if (key == extent_key){
             map_extent = items[1].split('_');
         }
     }
@@ -51,13 +58,18 @@ function getExtent() {
 function zoomToCurrentExtent(map){
     /* zoom to current extent */
     var current_extent = getExtent();
+    var extent;
     if (OpenLayers && current_extent && current_extent.length == 4){
         extent = new OpenLayers.Bounds(current_extent[0], current_extent[1],
                                        current_extent[2], current_extent[3]);
-        map.zoomToExtent(extent, true);
-        return true;
+    }
+    else if (OpenLayers && default_area && default_area.length == 4){
+        extent = new OpenLayers.Bounds(default_area[1], default_area[0],
+                                       default_area[3], default_area[2]);
     }
     else{
         return;
     }
+    map.zoomToExtent(extent, true);
+    return true;
 }