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js changes for 'history' tab

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This commit is contained in:
Harry Wood 2009-03-23 16:41:18 +00:00
parent afe8dd51ec
commit d3c6087409
3 changed files with 34 additions and 6 deletions
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2
public/javascripts/map.js
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@ -144,7 +144,7 @@ function setMapExtent(extent) {
map.zoomToExtent(extent.clone().transform(epsg4326, map.getProjectionObject()));
}
function getMapExtent(extent) {
function getMapExtent() {
return map.getExtent().clone().transform(map.getProjectionObject(), epsg4326);
}

27
public/javascripts/site.js
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@ -1,4 +1,6 @@
function updatelinks(lon,lat,zoom,layers) {
//Called as the user scrolls/zooms around.
//Maniplate hrefs of the view tab and various other links
function updatelinks(lon,lat,zoom,layers,extents) {
var decimals = Math.pow(10, Math.floor(zoom/3));
var node;
@ -55,6 +57,29 @@ function updatelinks(lon,lat,zoom,layers) {
node.style.fontStyle = 'italic';
}
}
node = document.getElementById("historyanchor");
if (node) {
if (zoom >= 11) {
var args = new Object();
//conjure a bounding box centred at the lat/lon.
//TODO: feed actual bounds of the window through to here somehow.
minlon = extents.left;
minlat = extents.bottom;
maxlon = extents.right;
maxlat = extents.top;
minlon = Math.round(minlon * decimals) / decimals;
minlat = Math.round(minlat * decimals) / decimals;
maxlon = Math.round(maxlon * decimals) / decimals;
maxlat = Math.round(maxlat * decimals) / decimals;
args.bbox = minlon + "," + minlat + "," + maxlon + "," + maxlat;
node.href = setArgs("history/", args);
node.style.fontStyle = 'normal';
} else {
node.href = 'javascript:alert("zoom in to see editing history");';
node.style.fontStyle = 'italic';
}
}
}
function getArgs(url) {