155 lines
3.9 KiB
JavaScript
155 lines
3.9 KiB
JavaScript
goog.provide('ol.interaction.Select');
|
|
|
|
goog.require('goog.array');
|
|
goog.require('goog.functions');
|
|
goog.require('ol.events.condition');
|
|
goog.require('ol.interaction.Interaction');
|
|
goog.require('ol.render.FeaturesOverlay');
|
|
|
|
|
|
|
|
/**
|
|
* @constructor
|
|
* @extends {ol.interaction.Interaction}
|
|
* @param {olx.interaction.SelectOptions=} opt_options Options.
|
|
* @todo stability experimental
|
|
*/
|
|
ol.interaction.Select = function(opt_options) {
|
|
|
|
var options = goog.isDef(opt_options) ? opt_options : {};
|
|
|
|
goog.base(this);
|
|
|
|
/**
|
|
* @private
|
|
* @type {ol.events.ConditionType}
|
|
*/
|
|
this.condition_ = goog.isDef(options.condition) ?
|
|
options.condition : ol.events.condition.singleClick;
|
|
|
|
/**
|
|
* @private
|
|
* @type {ol.events.ConditionType}
|
|
*/
|
|
this.addCondition_ = goog.isDef(options.addCondition) ?
|
|
options.addCondition : ol.events.condition.shiftKeyOnly;
|
|
|
|
var layerFilter;
|
|
if (goog.isDef(options.layerFilter)) {
|
|
layerFilter = options.layerFilter;
|
|
} else if (goog.isDef(options.layer)) {
|
|
var layer = options.layer;
|
|
layerFilter =
|
|
/**
|
|
* @param {ol.layer.Layer} l Layer.
|
|
* @return {boolean} Include.
|
|
*/
|
|
function(l) {
|
|
return l === layer;
|
|
};
|
|
} else if (goog.isDef(options.layers)) {
|
|
var layers = options.layers;
|
|
layerFilter =
|
|
/**
|
|
* @param {ol.layer.Layer} layer Layer.
|
|
* @return {boolean} Include.
|
|
*/
|
|
function(layer) {
|
|
return goog.array.indexOf(layers, layer) != -1;
|
|
};
|
|
} else {
|
|
layerFilter = goog.functions.TRUE;
|
|
}
|
|
|
|
/**
|
|
* @private
|
|
* @type {function(ol.layer.Layer): boolean}
|
|
*/
|
|
this.layerFilter_ = layerFilter;
|
|
|
|
/**
|
|
* @private
|
|
* @type {ol.render.FeaturesOverlay}
|
|
*/
|
|
this.featuresOverlay_ = options.featuresOverlay;
|
|
|
|
};
|
|
goog.inherits(ol.interaction.Select, ol.interaction.Interaction);
|
|
|
|
|
|
/**
|
|
* @return {ol.render.FeaturesOverlay} Features overlay.
|
|
* @todo stability experimental
|
|
*/
|
|
ol.interaction.Select.prototype.getFeaturesOverlay = function() {
|
|
return this.featuresOverlay_;
|
|
};
|
|
|
|
|
|
/**
|
|
* @inheritDoc
|
|
*/
|
|
ol.interaction.Select.prototype.handleMapBrowserEvent =
|
|
function(mapBrowserEvent) {
|
|
if (!this.condition_(mapBrowserEvent)) {
|
|
return true;
|
|
}
|
|
var add = this.addCondition_(mapBrowserEvent);
|
|
var map = mapBrowserEvent.map;
|
|
var features = this.featuresOverlay_.getFeatures();
|
|
map.withFrozenRendering(
|
|
/**
|
|
* @this {ol.interaction.Select}
|
|
*/
|
|
function() {
|
|
if (add) {
|
|
map.forEachFeatureAtPixel(mapBrowserEvent.pixel,
|
|
/**
|
|
* @param {ol.Feature} feature Feature.
|
|
* @param {ol.layer.Layer} layer Layer.
|
|
*/
|
|
function(feature, layer) {
|
|
if (goog.array.indexOf(features.getArray(), feature) == -1) {
|
|
features.push(feature);
|
|
}
|
|
}, undefined, this.layerFilter_);
|
|
} else {
|
|
/** @type {ol.Feature|undefined} */
|
|
var feature = map.forEachFeatureAtPixel(mapBrowserEvent.pixel,
|
|
/**
|
|
* @param {ol.Feature} feature Feature.
|
|
* @param {ol.layer.Layer} layer Layer.
|
|
*/
|
|
function(feature, layer) {
|
|
return feature;
|
|
}, undefined, this.layerFilter_);
|
|
if (goog.isDef(feature)) {
|
|
if (features.getLength() == 1) {
|
|
if (features.getAt(0) !== feature) {
|
|
features.setAt(0, feature);
|
|
}
|
|
} else {
|
|
if (features.getLength() != 1) {
|
|
features.clear();
|
|
}
|
|
features.push(feature);
|
|
}
|
|
} else {
|
|
if (features.getLength() !== 0) {
|
|
features.clear();
|
|
}
|
|
}
|
|
}
|
|
}, this);
|
|
return false;
|
|
};
|
|
|
|
|
|
/**
|
|
* @inheritDoc
|
|
*/
|
|
ol.interaction.Select.prototype.setMap = function(map) {
|
|
goog.base(this, 'setMap', map);
|
|
this.featuresOverlay_.setMap(map);
|
|
};
|