# all files / ol/layer/ vectorlayer.js

100% Statements 43/43
72.22% Branches 13/18
100% Functions 9/9
100% Lines 43/43

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     goog.provide('ol.layer.Vector');

    goog.require('goog.asserts');
    goog.require('goog.object');
    goog.require('ol');
    goog.require('ol.layer.Layer');
    goog.require('ol.style.Style');

    /**
     * @enum {string}
     */
    ol.layer.VectorProperty = {
      RENDER_ORDER: 'renderOrder'
    };

    /**
     * @classdesc
     * Vector data that is rendered client-side.
     * Note that any property set in the options is set as a {@link ol.Object}
     * property on the layer object; for example, setting `title: 'My Title'` in the
     * options means that `title` is observable, and has get/set accessors.
     *
     * @constructor
     * @extends {ol.layer.Layer}
     * @fires ol.render.Event
     * @param {olx.layer.VectorOptions=} opt_options Options.
     * @api stable
     */
    ol.layer.Vector = function(opt_options) {

      var options = opt_options ?
          opt_options : /** @type {olx.layer.VectorOptions} */ ({});

      goog.asserts.assert(
          options.renderOrder === undefined || !options.renderOrder ||
          goog.isFunction(options.renderOrder),
          'renderOrder must be a comparator function');

      var baseOptions = goog.object.clone(options);

      delete baseOptions.style;
      delete baseOptions.renderBuffer;
      delete baseOptions.updateWhileAnimating;
      delete baseOptions.updateWhileInteracting;
      goog.base(this, /** @type {olx.layer.LayerOptions} */ (baseOptions));

      /**
       * @type {number}
       * @private
       */
      this.renderBuffer_ = options.renderBuffer !== undefined ?
          options.renderBuffer : 100;

      /**
       * User provided style.
       * @type {ol.style.Style|Array.<ol.style.Style>|ol.style.StyleFunction}
       * @private
       */
      this.style_ = null;

      /**
       * Style function for use within the library.
       * @type {ol.style.StyleFunction|undefined}
       * @private
       */
      this.styleFunction_ = undefined;

      this.setStyle(options.style);

      /**
       * @type {boolean}
       * @private
       */
      this.updateWhileAnimating_ = options.updateWhileAnimating !== undefined ?
          options.updateWhileAnimating : false;

      /**
       * @type {boolean}
       * @private
       */
      this.updateWhileInteracting_ = options.updateWhileInteracting !== undefined ?
          options.updateWhileInteracting : false;

    };
    goog.inherits(ol.layer.Vector, ol.layer.Layer);

    /**
     * @return {number|undefined} Render buffer.
     */
    ol.layer.Vector.prototype.getRenderBuffer = function() {
      return this.renderBuffer_;
    };

    /**
     * @return {function(ol.Feature, ol.Feature): number|null|undefined} Render
     *     order.
     */
    ol.layer.Vector.prototype.getRenderOrder = function() {
      return /** @type {function(ol.Feature, ol.Feature):number|null|undefined} */ (
          this.get(ol.layer.VectorProperty.RENDER_ORDER));
    };

    /**
     * Return the associated {@link ol.source.Vector vectorsource} of the layer.
     * @function
     * @return {ol.source.Vector} Source.
     * @api stable
     */
    ol.layer.Vector.prototype.getSource;

    /**
     * Get the style for features.  This returns whatever was passed to the `style`
     * option at construction or to the `setStyle` method.
     * @return {ol.style.Style|Array.<ol.style.Style>|ol.style.StyleFunction}
     *     Layer style.
     * @api stable
     */
    ol.layer.Vector.prototype.getStyle = function() {
      return this.style_;
    };

    /**
     * Get the style function.
     * @return {ol.style.StyleFunction|undefined} Layer style function.
     * @api stable
     */
    ol.layer.Vector.prototype.getStyleFunction = function() {
      return this.styleFunction_;
    };

    /**
     * @return {boolean} Whether the rendered layer should be updated while
     *     animating.
     */
    ol.layer.Vector.prototype.getUpdateWhileAnimating = function() {
      return this.updateWhileAnimating_;
    };

    /**
     * @return {boolean} Whether the rendered layer should be updated while
     *     interacting.
     */
    ol.layer.Vector.prototype.getUpdateWhileInteracting = function() {
      return this.updateWhileInteracting_;
    };

    /**
     * @param {function(ol.Feature, ol.Feature):number|null|undefined} renderOrder
     *     Render order.
     */
    ol.layer.Vector.prototype.setRenderOrder = function(renderOrder) {
      goog.asserts.assert(
          renderOrder === undefined || !renderOrder ||
          goog.isFunction(renderOrder),
          'renderOrder must be a comparator function');
      this.set(ol.layer.VectorProperty.RENDER_ORDER, renderOrder);
    };

    /**
     * Set the style for features.  This can be a single style object, an array
     * of styles, or a function that takes a feature and resolution and returns
     * an array of styles. If it is `undefined` the default style is used. If
     * it is `null` the layer has no style (a `null` style), so only features
     * that have their own styles will be rendered in the layer. See
     * {@link ol.style} for information on the default style.
     * @param {ol.style.Style|Array.<ol.style.Style>|ol.style.StyleFunction|null|undefined}
     *     style Layer style.
     * @api stable
     */
    ol.layer.Vector.prototype.setStyle = function(style) {
      this.style_ = style !== undefined ? style : ol.style.defaultStyleFunction;
      this.styleFunction_ = style === null ?
          undefined : ol.style.createStyleFunction(this.style_);
      this.changed();
    };