dist/extension/bmap.js - echarts-www - Git at Google

 (function (global, factory) {
 	typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports, require('echarts')) :
 	typeof define === 'function' && define.amd ? define(['exports', 'echarts'], factory) :
 	(factory((global.bmap = {}),global.echarts));
 }(this, (function (exports,echarts) { 'use strict';

 /*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

 /* global BMap */

 function BMapCoordSys(bmap, api) {
     this._bmap = bmap;
     this.dimensions = ['lng', 'lat'];
     this._mapOffset = [0, 0];

     this._api = api;

     this._projection = new BMap.MercatorProjection();
 }

 BMapCoordSys.prototype.dimensions = ['lng', 'lat'];

 BMapCoordSys.prototype.setZoom = function (zoom) {
     this._zoom = zoom;
 };

 BMapCoordSys.prototype.setCenter = function (center) {
     this._center = this._projection.lngLatToPoint(new BMap.Point(center[0], center[1]));
 };

 BMapCoordSys.prototype.setMapOffset = function (mapOffset) {
     this._mapOffset = mapOffset;
 };

 BMapCoordSys.prototype.getBMap = function () {
     return this._bmap;
 };

 BMapCoordSys.prototype.dataToPoint = function (data) {
     var point = new BMap.Point(data[0], data[1]);
     // TODO mercator projection is toooooooo slow
     // var mercatorPoint = this._projection.lngLatToPoint(point);

     // var width = this._api.getZr().getWidth();
     // var height = this._api.getZr().getHeight();
     // var divider = Math.pow(2, 18 - 10);
     // return [
     //     Math.round((mercatorPoint.x - this._center.x) / divider + width / 2),
     //     Math.round((this._center.y - mercatorPoint.y) / divider + height / 2)
     // ];
     var px = this._bmap.pointToOverlayPixel(point);
     var mapOffset = this._mapOffset;
     return [px.x - mapOffset[0], px.y - mapOffset[1]];
 };

 BMapCoordSys.prototype.pointToData = function (pt) {
     var mapOffset = this._mapOffset;
     var pt = this._bmap.overlayPixelToPoint({
         x: pt[0] + mapOffset[0],
         y: pt[1] + mapOffset[1]
     });
     return [pt.lng, pt.lat];
 };

 BMapCoordSys.prototype.getViewRect = function () {
     var api = this._api;
     return new echarts.graphic.BoundingRect(0, 0, api.getWidth(), api.getHeight());
 };

 BMapCoordSys.prototype.getRoamTransform = function () {
     return echarts.matrix.create();
 };

 BMapCoordSys.prototype.prepareCustoms = function (data) {
     var rect = this.getViewRect();
     return {
         coordSys: {
             // The name exposed to user is always 'cartesian2d' but not 'grid'.
             type: 'bmap',
             x: rect.x,
             y: rect.y,
             width: rect.width,
             height: rect.height
         },
         api: {
             coord: echarts.util.bind(this.dataToPoint, this),
             size: echarts.util.bind(dataToCoordSize, this)
         }
     };
 };

 function dataToCoordSize(dataSize, dataItem) {
     dataItem = dataItem || [0, 0];
     return echarts.util.map([0, 1], function (dimIdx) {
         var val = dataItem[dimIdx];
         var halfSize = dataSize[dimIdx] / 2;
         var p1 = [];
         var p2 = [];
         p1[dimIdx] = val - halfSize;
         p2[dimIdx] = val + halfSize;
         p1[1 - dimIdx] = p2[1 - dimIdx] = dataItem[1 - dimIdx];
         return Math.abs(this.dataToPoint(p1)[dimIdx] - this.dataToPoint(p2)[dimIdx]);
     }, this);
 }

 var Overlay;

 // For deciding which dimensions to use when creating list data
 BMapCoordSys.dimensions = BMapCoordSys.prototype.dimensions;

 function createOverlayCtor() {
     function Overlay(root) {
         this._root = root;
     }

     Overlay.prototype = new BMap.Overlay();
     /**
      * 初始化
      *
      * @param {BMap.Map} map
      * @override
      */
     Overlay.prototype.initialize = function (map) {
         map.getPanes().labelPane.appendChild(this._root);
         return this._root;
     };
     /**
      * @override
      */
     Overlay.prototype.draw = function () {};

     return Overlay;
 }

 BMapCoordSys.create = function (ecModel, api) {
     var bmapCoordSys;
     var root = api.getDom();

     // TODO Dispose
     ecModel.eachComponent('bmap', function (bmapModel) {
         var painter = api.getZr().painter;
         var viewportRoot = painter.getViewportRoot();
         if (typeof BMap === 'undefined') {
             throw new Error('BMap api is not loaded');
         }
         Overlay = Overlay || createOverlayCtor();
         if (bmapCoordSys) {
             throw new Error('Only one bmap component can exist');
         }
         if (!bmapModel.__bmap) {
             // Not support IE8
             var bmapRoot = root.querySelector('.ec-extension-bmap');
             if (bmapRoot) {
                 // Reset viewport left and top, which will be changed
                 // in moving handler in BMapView
                 viewportRoot.style.left = '0px';
                 viewportRoot.style.top = '0px';
                 root.removeChild(bmapRoot);
             }
             bmapRoot = document.createElement('div');
             bmapRoot.style.cssText = 'width:100%;height:100%';
             // Not support IE8
             bmapRoot.classList.add('ec-extension-bmap');
             root.appendChild(bmapRoot);

             // initialize bmap
             var mapOptions = bmapModel.get('mapOptions') || {};
             // Not support `mapType`, use `bmap.setMapType(MapType)` instead.
             delete mapOptions.mapType;
             var bmap = bmapModel.__bmap = new BMap.Map(bmapRoot, mapOptions);

             var overlay = new Overlay(viewportRoot);
             bmap.addOverlay(overlay);

             // Override
             painter.getViewportRootOffset = function () {
                 return {offsetLeft: 0, offsetTop: 0};
             };
         }
         var bmap = bmapModel.__bmap;

         // Set bmap options
         // centerAndZoom before layout and render
         var center = bmapModel.get('center');
         var zoom = bmapModel.get('zoom');
         if (center && 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);
         bmapCoordSys.setMapOffset(bmapModel.__mapOffset || [0, 0]);
         bmapCoordSys.setZoom(zoom);
         bmapCoordSys.setCenter(center);

         bmapModel.coordinateSystem = bmapCoordSys;
     });

     ecModel.eachSeries(function (seriesModel) {
         if (seriesModel.get('coordinateSystem') === 'bmap') {
             seriesModel.coordinateSystem = bmapCoordSys;
         }
     });
 };

 /*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

 function v2Equal(a, b) {
     return a && b && a[0] === b[0] && a[1] === b[1];
 }

 echarts.extendComponentModel({
     type: 'bmap',

     getBMap: function () {
         // __bmap is injected when creating BMapCoordSys
         return this.__bmap;
     },

     setCenterAndZoom: function (center, zoom) {
         this.option.center = center;
         this.option.zoom = zoom;
     },

     centerOrZoomChanged: function (center, zoom) {
         var option = this.option;
         return !(v2Equal(center, option.center) && zoom === option.zoom);
     },

     defaultOption: {

         center: [104.114129, 37.550339],

         zoom: 5,

         // 2.0 http://lbsyun.baidu.com/custom/index.htm
         mapStyle: {},

         // 3.0 http://lbsyun.baidu.com/index.php?title=open/custom
         mapStyleV2: {},

         // See https://lbsyun.baidu.com/cms/jsapi/reference/jsapi_reference.html#a0b1
         mapOptions: {},

         roam: false
     }
 });

 /*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

 function isEmptyObject(obj) {
     for (var key in obj) {
         if (obj.hasOwnProperty(key)) {
             return false;
         }
     }
     return true;
 }

 echarts.extendComponentView({
     type: 'bmap',

     render: function (bMapModel, ecModel, api) {
         var rendering = true;

         var bmap = bMapModel.getBMap();
         var viewportRoot = api.getZr().painter.getViewportRoot();
         var coordSys = bMapModel.coordinateSystem;
         var moveHandler = function (type, target) {
             if (rendering) {
                 return;
             }
             var offsetEl = viewportRoot.parentNode.parentNode.parentNode;
             var mapOffset = [
                 -parseInt(offsetEl.style.left, 10) || 0,
                 -parseInt(offsetEl.style.top, 10) || 0
             ];
             viewportRoot.style.left = mapOffset[0] + 'px';
             viewportRoot.style.top = mapOffset[1] + 'px';

             coordSys.setMapOffset(mapOffset);
             bMapModel.__mapOffset = mapOffset;

             api.dispatchAction({
                 type: 'bmapRoam'
             });
         };

         function zoomEndHandler() {
             if (rendering) {
                 return;
             }
             api.dispatchAction({
                 type: 'bmapRoam'
             });
         }

         bmap.removeEventListener('moving', this._oldMoveHandler);
         bmap.removeEventListener('moveend', this._oldMoveHandler);
         bmap.removeEventListener('zoomend', this._oldZoomEndHandler);
         bmap.addEventListener('moving', moveHandler);
         bmap.addEventListener('moveend', moveHandler);
         bmap.addEventListener('zoomend', zoomEndHandler);

         this._oldMoveHandler = moveHandler;
         this._oldZoomEndHandler = zoomEndHandler;

         var roam = bMapModel.get('roam');
         if (roam && roam !== 'scale') {
             bmap.enableDragging();
         }
         else {
             bmap.disableDragging();
         }
         if (roam && roam !== 'move') {
             bmap.enableScrollWheelZoom();
             bmap.enableDoubleClickZoom();
             bmap.enablePinchToZoom();
         }
         else {
             bmap.disableScrollWheelZoom();
             bmap.disableDoubleClickZoom();
             bmap.disablePinchToZoom();
         }

         /* map 2.0 */
         var originalStyle = bMapModel.__mapStyle;

         var newMapStyle = bMapModel.get('mapStyle') || {};
         // FIXME, Not use JSON methods
         var mapStyleStr = JSON.stringify(newMapStyle);
         if (JSON.stringify(originalStyle) !== mapStyleStr) {
             // FIXME May have blank tile when dragging if setMapStyle
             if (!isEmptyObject(newMapStyle2)) {
                 bmap.setMapStyle(echarts.util.clone(newMapStyle));
             }
             bMapModel.__mapStyle = JSON.parse(mapStyleStr);
         }

         /* map 3.0 */
         var originalStyle2 = bMapModel.__mapStyle2;

         var newMapStyle2 = bMapModel.get('mapStyleV2') || {};
         // FIXME, Not use JSON methods
         var mapStyleStr2 = JSON.stringify(newMapStyle2);
         if (JSON.stringify(originalStyle2) !== mapStyleStr2) {
             // FIXME May have blank tile when dragging if setMapStyle
             if (!isEmptyObject(newMapStyle2)) {
                 bmap.setMapStyleV2(echarts.util.clone(newMapStyle2));
             }
             bMapModel.__mapStyle2 = JSON.parse(mapStyleStr2);
         }

         rendering = false;
     }
 });

 /*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

 /**
  * BMap component extension
  */

 echarts.registerCoordinateSystem('bmap', BMapCoordSys);

 // Action
 echarts.registerAction({
     type: 'bmapRoam',
     event: 'bmapRoam',
     update: 'updateLayout'
 }, function (payload, ecModel) {
     ecModel.eachComponent('bmap', function (bMapModel) {
         var bmap = bMapModel.getBMap();
         var center = bmap.getCenter();
         bMapModel.setCenterAndZoom([center.lng, center.lat], bmap.getZoom());
     });
 });

 var version = '1.0.0';

 exports.version = version;

 })));
 //# sourceMappingURL=bmap.js.map
	(function (global, factory) {
	typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports, require('echarts')) :
	typeof define === 'function' && define.amd ? define(['exports', 'echarts'], factory) :
	(factory((global.bmap = {}),global.echarts));
	}(this, (function (exports,echarts) { 'use strict';

	/*
	* Licensed to the Apache Software Foundation (ASF) under one
	* or more contributor license agreements. See the NOTICE file
	* distributed with this work for additional information
	* regarding copyright ownership. The ASF licenses this file
	* to you under the Apache License, Version 2.0 (the
	* "License"); you may not use this file except in compliance
	* with the License. You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing,
	* software distributed under the License is distributed on an
	* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
	* KIND, either express or implied. See the License for the
	* specific language governing permissions and limitations
	* under the License.
	*/

	/* global BMap */

	function BMapCoordSys(bmap, api) {
	this._bmap = bmap;
	this.dimensions = ['lng', 'lat'];
	this._mapOffset = [0, 0];

	this._api = api;

	this._projection = new BMap.MercatorProjection();
	}

	BMapCoordSys.prototype.dimensions = ['lng', 'lat'];

	BMapCoordSys.prototype.setZoom = function (zoom) {
	this._zoom = zoom;
	};

	BMapCoordSys.prototype.setCenter = function (center) {
	this._center = this._projection.lngLatToPoint(new BMap.Point(center[0], center[1]));
	};

	BMapCoordSys.prototype.setMapOffset = function (mapOffset) {
	this._mapOffset = mapOffset;
	};

	BMapCoordSys.prototype.getBMap = function () {
	return this._bmap;
	};

	BMapCoordSys.prototype.dataToPoint = function (data) {
	var point = new BMap.Point(data[0], data[1]);
	// TODO mercator projection is toooooooo slow
	// var mercatorPoint = this._projection.lngLatToPoint(point);

	// var width = this._api.getZr().getWidth();
	// var height = this._api.getZr().getHeight();
	// var divider = Math.pow(2, 18 - 10);
	// return [
	// Math.round((mercatorPoint.x - this._center.x) / divider + width / 2),
	// Math.round((this._center.y - mercatorPoint.y) / divider + height / 2)
	// ];
	var px = this._bmap.pointToOverlayPixel(point);
	var mapOffset = this._mapOffset;
	return [px.x - mapOffset[0], px.y - mapOffset[1]];
	};

	BMapCoordSys.prototype.pointToData = function (pt) {
	var mapOffset = this._mapOffset;
	var pt = this._bmap.overlayPixelToPoint({
	x: pt[0] + mapOffset[0],
	y: pt[1] + mapOffset[1]
	});
	return [pt.lng, pt.lat];
	};

	BMapCoordSys.prototype.getViewRect = function () {
	var api = this._api;
	return new echarts.graphic.BoundingRect(0, 0, api.getWidth(), api.getHeight());
	};

	BMapCoordSys.prototype.getRoamTransform = function () {
	return echarts.matrix.create();
	};

	BMapCoordSys.prototype.prepareCustoms = function (data) {
	var rect = this.getViewRect();
	return {
	coordSys: {
	// The name exposed to user is always 'cartesian2d' but not 'grid'.
	type: 'bmap',
	x: rect.x,
	y: rect.y,
	width: rect.width,
	height: rect.height
	},
	api: {
	coord: echarts.util.bind(this.dataToPoint, this),
	size: echarts.util.bind(dataToCoordSize, this)
	}
	};
	};

	function dataToCoordSize(dataSize, dataItem) {
	dataItem = dataItem \|\| [0, 0];
	return echarts.util.map([0, 1], function (dimIdx) {
	var val = dataItem[dimIdx];
	var halfSize = dataSize[dimIdx] / 2;
	var p1 = [];
	var p2 = [];
	p1[dimIdx] = val - halfSize;
	p2[dimIdx] = val + halfSize;
	p1[1 - dimIdx] = p2[1 - dimIdx] = dataItem[1 - dimIdx];
	return Math.abs(this.dataToPoint(p1)[dimIdx] - this.dataToPoint(p2)[dimIdx]);
	}, this);
	}

	var Overlay;

	// For deciding which dimensions to use when creating list data
	BMapCoordSys.dimensions = BMapCoordSys.prototype.dimensions;

	function createOverlayCtor() {
	function Overlay(root) {
	this._root = root;
	}

	Overlay.prototype = new BMap.Overlay();
	/**
	* 初始化
	*
	* @param {BMap.Map} map
	* @override
	*/
	Overlay.prototype.initialize = function (map) {
	map.getPanes().labelPane.appendChild(this._root);
	return this._root;
	};
	/**
	* @override
	*/
	Overlay.prototype.draw = function () {};

	return Overlay;
	}

	BMapCoordSys.create = function (ecModel, api) {
	var bmapCoordSys;
	var root = api.getDom();

	// TODO Dispose
	ecModel.eachComponent('bmap', function (bmapModel) {
	var painter = api.getZr().painter;
	var viewportRoot = painter.getViewportRoot();
	if (typeof BMap === 'undefined') {
	throw new Error('BMap api is not loaded');
	}
	Overlay = Overlay \|\| createOverlayCtor();
	if (bmapCoordSys) {
	throw new Error('Only one bmap component can exist');
	}
	if (!bmapModel.__bmap) {
	// Not support IE8
	var bmapRoot = root.querySelector('.ec-extension-bmap');
	if (bmapRoot) {
	// Reset viewport left and top, which will be changed
	// in moving handler in BMapView
	viewportRoot.style.left = '0px';
	viewportRoot.style.top = '0px';
	root.removeChild(bmapRoot);
	}
	bmapRoot = document.createElement('div');
	bmapRoot.style.cssText = 'width:100%;height:100%';
	// Not support IE8
	bmapRoot.classList.add('ec-extension-bmap');
	root.appendChild(bmapRoot);

	// initialize bmap
	var mapOptions = bmapModel.get('mapOptions') \|\| {};
	// Not support `mapType`, use `bmap.setMapType(MapType)` instead.
	delete mapOptions.mapType;
	var bmap = bmapModel.__bmap = new BMap.Map(bmapRoot, mapOptions);

	var overlay = new Overlay(viewportRoot);
	bmap.addOverlay(overlay);

	// Override
	painter.getViewportRootOffset = function () {
	return {offsetLeft: 0, offsetTop: 0};
	};
	}
	var bmap = bmapModel.__bmap;

	// Set bmap options
	// centerAndZoom before layout and render
	var center = bmapModel.get('center');
	var zoom = bmapModel.get('zoom');
	if (center && 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);
	bmapCoordSys.setMapOffset(bmapModel.__mapOffset \|\| [0, 0]);
	bmapCoordSys.setZoom(zoom);
	bmapCoordSys.setCenter(center);

	bmapModel.coordinateSystem = bmapCoordSys;
	});

	ecModel.eachSeries(function (seriesModel) {
	if (seriesModel.get('coordinateSystem') === 'bmap') {
	seriesModel.coordinateSystem = bmapCoordSys;
	}
	});
	};

	/*
	* Licensed to the Apache Software Foundation (ASF) under one
	* or more contributor license agreements. See the NOTICE file
	* distributed with this work for additional information
	* regarding copyright ownership. The ASF licenses this file
	* to you under the Apache License, Version 2.0 (the
	* "License"); you may not use this file except in compliance
	* with the License. You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing,
	* software distributed under the License is distributed on an
	* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
	* KIND, either express or implied. See the License for the
	* specific language governing permissions and limitations
	* under the License.
	*/

	function v2Equal(a, b) {
	return a && b && a[0] === b[0] && a[1] === b[1];
	}

	echarts.extendComponentModel({
	type: 'bmap',

	getBMap: function () {
	// __bmap is injected when creating BMapCoordSys
	return this.__bmap;
	},

	setCenterAndZoom: function (center, zoom) {
	this.option.center = center;
	this.option.zoom = zoom;
	},

	centerOrZoomChanged: function (center, zoom) {
	var option = this.option;
	return !(v2Equal(center, option.center) && zoom === option.zoom);
	},

	defaultOption: {

	center: [104.114129, 37.550339],

	zoom: 5,

	// 2.0 http://lbsyun.baidu.com/custom/index.htm
	mapStyle: {},

	// 3.0 http://lbsyun.baidu.com/index.php?title=open/custom
	mapStyleV2: {},

	// See https://lbsyun.baidu.com/cms/jsapi/reference/jsapi_reference.html#a0b1
	mapOptions: {},

	roam: false
	}
	});

	/*
	* Licensed to the Apache Software Foundation (ASF) under one
	* or more contributor license agreements. See the NOTICE file
	* distributed with this work for additional information
	* regarding copyright ownership. The ASF licenses this file
	* to you under the Apache License, Version 2.0 (the
	* "License"); you may not use this file except in compliance
	* with the License. You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing,
	* software distributed under the License is distributed on an
	* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
	* KIND, either express or implied. See the License for the
	* specific language governing permissions and limitations
	* under the License.
	*/

	function isEmptyObject(obj) {
	for (var key in obj) {
	if (obj.hasOwnProperty(key)) {
	return false;
	}
	}
	return true;
	}

	echarts.extendComponentView({
	type: 'bmap',

	render: function (bMapModel, ecModel, api) {
	var rendering = true;

	var bmap = bMapModel.getBMap();
	var viewportRoot = api.getZr().painter.getViewportRoot();
	var coordSys = bMapModel.coordinateSystem;
	var moveHandler = function (type, target) {
	if (rendering) {
	return;
	}
	var offsetEl = viewportRoot.parentNode.parentNode.parentNode;
	var mapOffset = [
	-parseInt(offsetEl.style.left, 10) \|\| 0,
	-parseInt(offsetEl.style.top, 10) \|\| 0
	];
	viewportRoot.style.left = mapOffset[0] + 'px';
	viewportRoot.style.top = mapOffset[1] + 'px';

	coordSys.setMapOffset(mapOffset);
	bMapModel.__mapOffset = mapOffset;

	api.dispatchAction({
	type: 'bmapRoam'
	});
	};

	function zoomEndHandler() {
	if (rendering) {
	return;
	}
	api.dispatchAction({
	type: 'bmapRoam'
	});
	}

	bmap.removeEventListener('moving', this._oldMoveHandler);
	bmap.removeEventListener('moveend', this._oldMoveHandler);
	bmap.removeEventListener('zoomend', this._oldZoomEndHandler);
	bmap.addEventListener('moving', moveHandler);
	bmap.addEventListener('moveend', moveHandler);
	bmap.addEventListener('zoomend', zoomEndHandler);

	this._oldMoveHandler = moveHandler;
	this._oldZoomEndHandler = zoomEndHandler;

	var roam = bMapModel.get('roam');
	if (roam && roam !== 'scale') {
	bmap.enableDragging();
	}
	else {
	bmap.disableDragging();
	}
	if (roam && roam !== 'move') {
	bmap.enableScrollWheelZoom();
	bmap.enableDoubleClickZoom();
	bmap.enablePinchToZoom();
	}
	else {
	bmap.disableScrollWheelZoom();
	bmap.disableDoubleClickZoom();
	bmap.disablePinchToZoom();
	}

	/* map 2.0 */
	var originalStyle = bMapModel.__mapStyle;

	var newMapStyle = bMapModel.get('mapStyle') \|\| {};
	// FIXME, Not use JSON methods
	var mapStyleStr = JSON.stringify(newMapStyle);
	if (JSON.stringify(originalStyle) !== mapStyleStr) {
	// FIXME May have blank tile when dragging if setMapStyle
	if (!isEmptyObject(newMapStyle2)) {
	bmap.setMapStyle(echarts.util.clone(newMapStyle));
	}
	bMapModel.__mapStyle = JSON.parse(mapStyleStr);
	}

	/* map 3.0 */
	var originalStyle2 = bMapModel.__mapStyle2;

	var newMapStyle2 = bMapModel.get('mapStyleV2') \|\| {};
	// FIXME, Not use JSON methods
	var mapStyleStr2 = JSON.stringify(newMapStyle2);
	if (JSON.stringify(originalStyle2) !== mapStyleStr2) {
	// FIXME May have blank tile when dragging if setMapStyle
	if (!isEmptyObject(newMapStyle2)) {
	bmap.setMapStyleV2(echarts.util.clone(newMapStyle2));
	}
	bMapModel.__mapStyle2 = JSON.parse(mapStyleStr2);
	}

	rendering = false;
	}
	});

	/*
	* Licensed to the Apache Software Foundation (ASF) under one
	* or more contributor license agreements. See the NOTICE file
	* distributed with this work for additional information
	* regarding copyright ownership. The ASF licenses this file
	* to you under the Apache License, Version 2.0 (the
	* "License"); you may not use this file except in compliance
	* with the License. You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing,
	* software distributed under the License is distributed on an
	* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
	* KIND, either express or implied. See the License for the
	* specific language governing permissions and limitations
	* under the License.
	*/

	/**
	* BMap component extension
	*/

	echarts.registerCoordinateSystem('bmap', BMapCoordSys);

	// Action
	echarts.registerAction({
	type: 'bmapRoam',
	event: 'bmapRoam',
	update: 'updateLayout'
	}, function (payload, ecModel) {
	ecModel.eachComponent('bmap', function (bMapModel) {
	var bmap = bMapModel.getBMap();
	var center = bmap.getCenter();
	bMapModel.setCenterAndZoom([center.lng, center.lat], bmap.getZoom());
	});
	});

	var version = '1.0.0';

	exports.version = version;

	})));
	//# sourceMappingURL=bmap.js.map