BMapView.js
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/*
* 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.
*/
import * as echarts from 'echarts';
export default 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);
// FIXME
// Moveend may be triggered by centerAndZoom method when creating coordSys next time
// 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();
}
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 (Object.keys(newMapStyle).length) {
bmap.setMapStyle(newMapStyle);
}
bMapModel.__mapStyle = JSON.parse(mapStyleStr);
}
rendering = false;
}
});