ashatora/openlayers
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Handle not-ready layers in attribution view

Browse Source
This commit is contained in:
Tom Payne
2012-08-02 14:43:20 +02:00
parent 53f1397109
commit 5d870e62c2
1 changed files with 55 additions and 24 deletions
Download Patch File Download Diff File Expand all files Collapse all files

79
src/ol/view/attribution.js
View File

@@ -1,7 +1,6 @@
// FIXME handle rotation
// FIXME probably need to abstract out a "layers listener"
// FIXME handle layer order
// FIXME handle not-ready layers
goog.provide('ol.view.Attribution');
@@ -76,6 +75,48 @@ ol.view.Attribution = function(map) {
goog.inherits(ol.view.Attribution, ol.View);
/**
* @param {ol.Layer} layer Layer.
* @private
*/
ol.view.Attribution.prototype.createAttributionElementsForLayer_ =
function(layer) {
var map = this.getMap();
var mapIsDef = map.isDef();
var mapExtent = /** @type {ol.Extent} */ map.getExtent();
var mapProjection = /** @type {ol.Projection} */ map.getProjection();
var mapZ = 10; // FIXME
var layerVisible = layer.getVisible();
var store = layer.getStore();
var attributions = store.getAttributions();
if (!goog.isNull(attributions)) {
goog.array.forEach(attributions, function(attribution) {
var attributionKey = goog.getUid(attribution);
var attributionElement = goog.dom.createElement(goog.dom.TagName.LI);
attributionElement.innerHTML = attribution.getHtml();
var attributionVisible = mapIsDef && layerVisible &&
this.getAttributionVisiblity_(
attribution, mapExtent, mapZ, mapProjection);
goog.style.showElement(attributionElement, attributionVisible);
this.ulElement_.appendChild(attributionElement);
this.attributionElements_[attributionKey] = attributionElement;
}, this);
}
};
/**
* @inheritDoc
*/
@@ -92,36 +133,26 @@ ol.view.Attribution.prototype.handleLayerAdd = function(layer) {
var layerKey = goog.getUid(layer);
var map = this.getMap();
var mapIsDef = map.isDef();
var mapExtent = /** @type {ol.Extent} */ map.getExtent();
var mapProjection = /** @type {ol.Projection} */ map.getProjection();
var mapZ = 10; // FIXME
var layerVisible = layer.getVisible();
this.layerVisibleChangeListenerKeys_[layerKey] = goog.events.listen(
layer, ol.Object.getChangedEventType(ol.LayerProperty.VISIBLE),
this.handleLayerVisibleChanged, false, this);
goog.array.forEach(layer.getStore().getAttributions(), function(attribution) {
if (layer.getStore().isReady()) {
this.createAttributionElementsForLayer_(layer);
} else {
goog.events.listenOnce(layer, goog.events.EventType.LOAD,
this.handleLayerLoad, false, this);
}
var attributionKey = goog.getUid(attribution);
};
var attributionElement = goog.dom.createElement(goog.dom.TagName.LI);
attributionElement.innerHTML = attribution.getHtml();
var attributionVisible = mapIsDef && layerVisible &&
this.getAttributionVisiblity_(
attribution, mapExtent, mapZ, mapProjection);
goog.style.showElement(attributionElement, attributionVisible);
this.ulElement_.appendChild(attributionElement);
this.attributionElements_[attributionKey] = attributionElement;
}, this);
/**
* @param {goog.events.Event} event Event.
*/
ol.view.Attribution.prototype.handleLayerLoad = function(event) {
var layer = /** @type {ol.Layer} */ event.target;
this.createAttributionElementsForLayer_(layer);
};