CDSS-daming-web/node_modules/echarts/lib/component/toolbox/feature/SaveAsImage.js

/*
* 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.
*/


/**
 * AUTO-GENERATED FILE. DO NOT MODIFY.
 */

/*
* 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 { __extends } from "tslib";
/* global Uint8Array, document */

import env from 'zrender/lib/core/env';
import { ToolboxFeature } from '../featureManager';
/* global window, document */

var SaveAsImage =
/** @class */
function (_super) {
  __extends(SaveAsImage, _super);

  function SaveAsImage() {
    return _super !== null && _super.apply(this, arguments) || this;
  }

  SaveAsImage.prototype.onclick = function (ecModel, api) {
    var model = this.model;
    var title = model.get('name') || ecModel.get('title.0.text') || 'echarts';
    var isSvg = api.getZr().painter.getType() === 'svg';
    var type = isSvg ? 'svg' : model.get('type', true) || 'png';
    var url = api.getConnectedDataURL({
      type: type,
      backgroundColor: model.get('backgroundColor', true) || ecModel.get('backgroundColor') || '#fff',
      connectedBackgroundColor: model.get('connectedBackgroundColor'),
      excludeComponents: model.get('excludeComponents'),
      pixelRatio: model.get('pixelRatio')
    }); // Chrome, Firefox, New Edge

    if (typeof MouseEvent === 'function' && (env.browser.newEdge || !env.browser.ie && !env.browser.edge)) {
      var $a = document.createElement('a');
      $a.download = title + '.' + type;
      $a.target = '_blank';
      $a.href = url;
      var evt = new MouseEvent('click', {
        // some micro front-end framework， window maybe is a Proxy
        view: document.defaultView,
        bubbles: true,
        cancelable: false
      });
      $a.dispatchEvent(evt);
    } // IE or old Edge
    else {
        if (window.navigator.msSaveOrOpenBlob || isSvg) {
          var parts = url.split(','); // data:[<mime type>][;charset=<charset>][;base64],<encoded data>

          var base64Encoded = parts[0].indexOf('base64') > -1;
          var bstr = isSvg // should decode the svg data uri first
          ? decodeURIComponent(parts[1]) : parts[1]; // only `atob` when the data uri is encoded with base64
          // otherwise, like `svg` data uri exported by zrender,
          // there will be an error, for it's not encoded with base64.
          // (just a url-encoded string through `encodeURIComponent`)

          base64Encoded && (bstr = window.atob(bstr));
          var filename = title + '.' + type;

          if (window.navigator.msSaveOrOpenBlob) {
            var n = bstr.length;
            var u8arr = new Uint8Array(n);

            while (n--) {
              u8arr[n] = bstr.charCodeAt(n);
            }

            var blob = new Blob([u8arr]);
            window.navigator.msSaveOrOpenBlob(blob, filename);
          } else {
            var frame = document.createElement('iframe');
            document.body.appendChild(frame);
            var cw = frame.contentWindow;
            var doc = cw.document;
            doc.open('image/svg+xml', 'replace');
            doc.write(bstr);
            doc.close();
            cw.focus();
            doc.execCommand('SaveAs', true, filename);
            document.body.removeChild(frame);
          }
        } else {
          var lang = model.get('lang');
          var html = '' + '<body style="margin:0;">' + '<img src="' + url + '" style="max-width:100%;" title="' + (lang && lang[0] || '') + '" />' + '</body>';
          var tab = window.open();
          tab.document.write(html);
          tab.document.title = title;
        }
      }
  };

  SaveAsImage.getDefaultOption = function (ecModel) {
    var defaultOption = {
      show: true,
      icon: 'M4.7,22.9L29.3,45.5L54.7,23.4M4.6,43.6L4.6,58L53.8,58L53.8,43.6M29.2,45.1L29.2,0',
      title: ecModel.getLocaleModel().get(['toolbox', 'saveAsImage', 'title']),
      type: 'png',
      // Default use option.backgroundColor
      // backgroundColor: '#fff',
      connectedBackgroundColor: '#fff',
      name: '',
      excludeComponents: ['toolbox'],
      // use current pixel ratio of device by default
      // pixelRatio: 1,
      lang: ecModel.getLocaleModel().get(['toolbox', 'saveAsImage', 'lang'])
    };
    return defaultOption;
  };

  return SaveAsImage;
}(ToolboxFeature);

SaveAsImage.prototype.unusable = !env.canvasSupported;
export default SaveAsImage;