fix(bmap): bmap event moveend is always triggered when dragging or zoomend. (apache#12558)

Author: plainheart

extension-src/bmap/BMapCoordSys.js

@@ -201,8 +201,13 @@ BMapCoordSys.create = function (ecModel, api) {
         var center = bmapModel.get('center');
         var zoom = bmapModel.get('zoom');
         if (center && zoom) {
-            var pt = new BMap.Point(center[0], center[1]);
-            bmap.centerAndZoom(pt, zoom);
+            var bmapCenter = bmap.getCenter();
+            var bmapZoom = bmap.getZoom();
+            var centerOrZoomChanged = bmapModel.centerOrZoomChanged([bmapCenter.lng, bmapCenter.lat], bmapZoom);
+            if (centerOrZoomChanged) {
+                var pt = new BMap.Point(center[0], center[1]);
+                bmap.centerAndZoom(pt, zoom);
+            }
         }
 
         bmapCoordSys = new BMapCoordSys(bmap, api);

extension-src/bmap/BMapView.js

@@ -67,12 +67,10 @@ export default echarts.extendComponentView({
         }
 
         bmap.removeEventListener('moving', this._oldMoveHandler);
-        // FIXME
-        // Moveend may be triggered by centerAndZoom method when creating coordSys next time
-        // bmap.removeEventListener('moveend', this._oldMoveHandler);
+        bmap.removeEventListener('moveend', this._oldMoveHandler);
         bmap.removeEventListener('zoomend', this._oldZoomEndHandler);
         bmap.addEventListener('moving', moveHandler);
-        // bmap.addEventListener('moveend', moveHandler);
+        bmap.addEventListener('moveend', moveHandler);
         bmap.addEventListener('zoomend', zoomEndHandler);
 
         this._oldMoveHandler = moveHandler;