openlayers mbglstyle增加getStylesBySourceLayer方法

songyumeng · songyumeng · commit 25cdea3a8de5 · 2018-06-11T18:27:24.000+08:00
diff --git a/dist/iclient9-openlayers.js b/dist/iclient9-openlayers.js
@@ -62377,6 +62377,7 @@ var MapboxStyles = exports.MapboxStyles = function (_ol$Observable) {
         _this.url = options.url ? options.url + '/tileFeature/vectorstyles.json?type=MapBox_GL&styleonly=true' : "";
         _this.resolutions = options.resolutions;
         _this.style = options.style;
+        _this.layersBySourceLayer = {};
         (0, _olExtends.olExtends)(_this.map);
         if (_this.style) {
             _this._mbStyle = _this.style;
@@ -62403,6 +62404,50 @@ var MapboxStyles = exports.MapboxStyles = function (_ol$Observable) {
         value: function getStyleFunction() {
             return this.featureStyleFuntion;
         }
+        /**
+         * @function ol.supermap.MapboxStyles.getStylesBySourceLayer
+         * @param {string} sourceLayer - 数据图层名称。
+         * @return 
+         */
+
+    }, {
+        key: 'getStylesBySourceLayer',
+        value: function getStylesBySourceLayer(sourceLayer) {
+            if (this.layersBySourceLayer[sourceLayer]) {
+                return this.layersBySourceLayer[sourceLayer];
+            }
+            var layers = [];
+            var _iteratorNormalCompletion = true;
+            var _didIteratorError = false;
+            var _iteratorError = undefined;
+
+            try {
+                for (var _iterator = this._mbStyle.layers[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
+                    var layer = _step.value;
+
+                    if (layer['source-layer'] !== sourceLayer) {
+                        continue;
+                    }
+                    layers.push(layer);
+                }
+            } catch (err) {
+                _didIteratorError = true;
+                _iteratorError = err;
+            } finally {
+                try {
+                    if (!_iteratorNormalCompletion && _iterator.return) {
+                        _iterator.return();
+                    }
+                } finally {
+                    if (_didIteratorError) {
+                        throw _iteratorError;
+                    }
+                }
+            }
+
+            this.layersBySourceLayer[sourceLayer] = layers;
+            return layers;
+        }
     }, {
         key: 'updateStyles',
         value: function updateStyles(layerStyles) {
diff --git a/dist/iclient9-openlayers.min.js b/dist/iclient9-openlayers.min.js
diff --git a/src/openlayers/overlay/vectortile/MapboxStyles.js b/src/openlayers/overlay/vectortile/MapboxStyles.js
@@ -60,6 +60,7 @@ export class MapboxStyles extends ol.Observable {
         this.url = options.url ? options.url + '/tileFeature/vectorstyles.json?type=MapBox_GL&styleonly=true' : "";
         this.resolutions = options.resolutions;
         this.style = options.style;
+        this.layersBySourceLayer = {};
         olExtends(this.map);
         if (this.style) {
             this._mbStyle = this.style;
@@ -80,6 +81,25 @@ export class MapboxStyles extends ol.Observable {
     getStyleFunction() {
         return this.featureStyleFuntion;
     }
+    /**
+     * @function ol.supermap.MapboxStyles.getStylesBySourceLayer
+     * @param {string} sourceLayer - 数据图层名称。
+     * @return 
+     */
+    getStylesBySourceLayer(sourceLayer) {
+        if (this.layersBySourceLayer[sourceLayer]) {
+            return this.layersBySourceLayer[sourceLayer];
+        }
+        const layers = [];
+        for (const layer of this._mbStyle.layers) {
+            if (layer['source-layer'] !== sourceLayer) {
+                continue;
+            }
+            layers.push(layer);
+        }
+        this.layersBySourceLayer[sourceLayer] = layers;
+        return layers;
+    }
     updateStyles(layerStyles) {
         if (Object.prototype.toString.call(layerStyles) !== '[object Array]') {
             layerStyles = [layerStyles];
