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Handle Leaflet freak-out on removed layers during tile load, clean up panning

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This commit is contained in:
Mike Primm 2011-08-03 21:14:15 -05:00
parent 852df86ad1
commit 132bfc539b
2 changed files with 56 additions and 13 deletions
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31
web/js/dynmaputils.js
View File

@ -45,9 +45,40 @@ var DynmapTileLayer = L.TileLayer.extend({
updateTile: function(tile) {
this._loadTile(tile, tile.tilePoint, this._map.getZoom());
},
// Override to fix loads completing after layer removed
_addTilesFromCenterOut: function(bounds) {
if(this._container == null) // Ignore if we've stopped being active layer
return;
var queue = [],
center = bounds.getCenter();
for (var j = bounds.min.y; j <= bounds.max.y; j++) {
for (var i = bounds.min.x; i <= bounds.max.x; i++) {
if ((i + ':' + j) in this._tiles) { continue; }
queue.push(new L.Point(i, j));
}
}
// load tiles in order of their distance to center
queue.sort(function(a, b) {
return a.distanceTo(center) - b.distanceTo(center);
});
var fragment = document.createDocumentFragment();
this._tilesToLoad = queue.length;
for (var k = 0, len = this._tilesToLoad; k < len; k++) {
this._addTile(queue[k], fragment);
}
this._container.appendChild(fragment);
},
// We should override this, since Leaflet does modulo on tilePoint by default. (https://github.com/CloudMade/Leaflet/blob/master/src/layer/tile/TileLayer.js#L151)
_addTile: function(tilePoint) {
if(this._container == null) // Ignore if we're not active layer
return;
var tilePos = this._getTilePos(tilePoint),
zoom = this._map.getZoom(),
key = tilePoint.x + ':' + tilePoint.y,

36
web/js/map.js
View File

@ -299,7 +299,7 @@ DynMap.prototype = {
});
},
getProjection: function() { return this.maptype.getProjection(); },
selectMap: function(map, completed) {
selectMapAndPan: function(map, location, completed) {
if (!map) { throw "Cannot select map " + map; }
var me = this;
@ -333,9 +333,12 @@ DynMap.prototype = {
me.map.options.maxZoom = me.maptype.options.maxZoom;
me.map.options.minZoom = me.maptype.options.minZoom;
if (projectionChanged || worldChanged) {
if (projectionChanged || worldChanged || location) {
var centerPoint;
if(worldChanged) {
if(location) {
centerPoint = me.getProjection().fromLocationToLatLng(location);
}
else if(worldChanged) {
var centerLocation = $.extend({ x: 0, y: 64, z: 0 }, mapWorld.center);
centerPoint = me.getProjection().fromLocationToLatLng(centerLocation);
}
@ -369,28 +372,37 @@ DynMap.prototype = {
completed();
}
},
selectWorld: function(world, completed) {
selectMap: function(map, completed) {
this.selectMapAndPan(map, null, completed);
},
selectWorldAndPan: function(world, location, completed) {
var me = this;
if (typeof(world) === 'String') { world = me.worlds[world]; }
if (me.world === world) {
if(location) {
var latlng = me.maptype.getProjection().fromLocationToLatLng(location);
me.panToLatLng(latlng, completed);
}
else {
if (completed) { completed(); }
}
return;
}
me.selectMap(world.defaultmap, completed);
me.selectMapAndPan(world.defaultmap, location, completed);
},
selectWorld: function(world, completed) {
this.selectWorldAndPan(world, null, completed);
},
panToLocation: function(location, completed) {
var me = this;
var pan = function() {
var latlng = me.maptype.getProjection().fromLocationToLatLng(location);
me.panToLatLng(latlng, completed);
};
if (location.world) {
me.selectWorld(location.world, function() {
pan();
me.selectWorldAndPan(location.world, location, function() {
if(completed) completed();
});
} else {
pan();
var latlng = me.maptype.getProjection().fromLocationToLatLng(location);
me.panToLatLng(latlng, completed);
}
},
panToLayerPoint: function(point, completed) {