Having to call two methods to get complete feature information (id and data) is cumbersome. The `getFeatureInfo` method returns an object with both feature id and data.
The tile now has responsibility for resolving feature ids and fetching feature data given x, y pixel offsets with getFeatureId and getFeatureData methods. The layer has corresponding getFeatureId and getFeatureData methods that take a map location, lookup the appropriate tile, and delegate to the tile for the rest of the work.
In setMap, the layer gets the map's projection if it doesn't have its own. And since a layer can have a different SRS code than the map (but a compatible one, i.e. with OpenLayers.Projection.transforms[mapProj][layerProj] being OpenLayer.Projection.nullTransform), the axis order can be different.
This allows us to simplify the map and layer configuration, because now the projection also defines defaults for maxExtent, maxResolution and units.
This change also adds transforms for SRS aliases for EPSG:4326 and centralizes axis order information in OpenLayers.Projection.defaults.
The new base layer may previously have been out of range, in which case setVisibility(true) would do nothing if the layer was visible already. So we check if it was previously out of range, and redraw it if necessary.
Same behavior as Map.eventListeners or Layer.eventListeners.
New listeners can be registered using the options parameter:
new OpenLayers.Tile.Image(layer, position, bounds, null, size, {
eventListeners: {
loadstart: function(evt) {
// ...
},
loadend: function(evt) {
// ...
}
}
});
Since draw is the only tile operation that we defer, the tile queue can be an array of tiles and queue handling can be simplified. We now use the beforedraw event to defer drawing, and remove all occurrences of a tile from the tile queue when we draw it.
Instead of layers that want to defer tile drawing having to override the tile's draw method, layers can now abort drawing by returning false from a beforedraw listener, and later call draw(true) to draw the tile directly, without clearing it first.
This saves server requests, and because we use OpenLayers.Animation, setting img.src on a tile should not freeze iOS any more, so we can hopefully get rid of scheduleMoveGriddedTiles.
Instead of giving the function a bound, a scope, a property to update
and a callback, only give the bound and a callback.
When the url is retrieved by getUrlAsync, simply call the callback
with the url as argument and let the caller manage this.
Whitespace fixed from patch, and removed docs for beforefeatureselected and featureselected events because they are fired on the layer, not the control.
p=mosesonline, r=me (closes http://trac.osgeo.org/openlayers/ticket/3538)
For PanZoomBar, this fixes the slider behavior. Now the buttonclick listener argument also includes a buttonXY property, and PanZoomPanel does not need an Events instance for the zoombarDiv any more.
For Panel, this fixes events for panels outside the map. Just setting the element on the Events instance was no longer enough after e70569b2bb. Events::attachToElement is now used, and it needed to be modified to also work if the Events instance had no element previously.
Finally, I renamed the button property of the buttonclick listener argument to buttonElement, to not confuse it with the browser event button property, and added some more tests and documentation.
This change involves removal of the map's eventsDiv and introduces an OpenLayers.Events.buttonclick component that adds a buttonclick event which makes sure that only events that are not related to clicking a button propagate. This allows button controls to be on the map's viewPortDiv again.
