a85b82090d
`click` events are fired only if the mouse action button is pressed. This prevents `click` events from being fired when the middle mouse button is used. Also, without this commit, in Chrome with emulated touch events enabled, double-clicking the map doesn't zoom the map. This is because `ol.BrowserFeature.HAS_TOUCH` is `false` in that environment. The commit fixes it by testing `isMouseActionButton` on mouse devices only.
62 lines
1.6 KiB
JavaScript
62 lines
1.6 KiB
JavaScript
// FIXME works for View2D only
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goog.provide('ol.interaction.DoubleClickZoom');
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goog.require('goog.asserts');
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goog.require('ol.MapBrowserEvent');
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goog.require('ol.MapBrowserEvent.EventType');
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goog.require('ol.interaction.Interaction');
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/**
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* Allows the user to zoom by double-clicking on the map.
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*
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* @constructor
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* @extends {ol.interaction.Interaction}
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* @param {ol.interaction.DoubleClickZoomOptions=} opt_options Options.
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* @todo stability experimental
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*/
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ol.interaction.DoubleClickZoom = function(opt_options) {
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var options = goog.isDef(opt_options) ? opt_options : {};
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/**
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* @private
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* @type {number}
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*/
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this.delta_ = goog.isDef(options.delta) ? options.delta : 1;
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goog.base(this);
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/**
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* @private
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* @type {number}
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*/
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this.duration_ = goog.isDef(options.duration) ? options.duration : 250;
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};
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goog.inherits(ol.interaction.DoubleClickZoom, ol.interaction.Interaction);
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/**
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* @inheritDoc
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*/
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ol.interaction.DoubleClickZoom.prototype.handleMapBrowserEvent =
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function(mapBrowserEvent) {
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var stopEvent = false;
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var browserEvent = mapBrowserEvent.browserEvent;
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if (mapBrowserEvent.type == ol.MapBrowserEvent.EventType.DBLCLICK) {
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var map = mapBrowserEvent.map;
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var anchor = mapBrowserEvent.getCoordinate();
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var delta = browserEvent.shiftKey ? -this.delta_ : this.delta_;
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// FIXME works for View2D only
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var view = map.getView().getView2D();
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ol.interaction.Interaction.zoomByDelta(
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map, view, delta, anchor, this.duration_);
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mapBrowserEvent.preventDefault();
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stopEvent = true;
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}
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return !stopEvent;
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};
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