1 | const Util = require('./util');
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2 | const Interaction = require('./base');
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3 |
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4 | function getOriginalAttrs(attrs, styles) {
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5 | const origin = {};
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6 | for (const style in styles) {
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7 | origin[style] = attrs[style];
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8 | }
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9 | return origin;
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10 | }
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11 |
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12 | class Select extends Interaction {
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13 | getDefaultCfg() {
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14 | const defaultCfg = super.getDefaultCfg();
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15 | return Util.mix({}, defaultCfg, {
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16 | startEvent: 'mouseup',
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17 | processEvent: null,
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18 | selectStyle: {
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19 | fillOpacity: 1
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20 | },
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21 | unSelectStyle: {
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22 | fillOpacity: 0.1
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23 | },
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24 | cancelable: true
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25 | });
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26 | }
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27 |
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28 | start(ev) {
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29 | const self = this;
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30 | const chart = self.view;
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31 |
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32 | let selectedShape;
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33 | const unSelectedShapes = [];
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34 | chart.eachShape((obj, shape) => {
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35 | if (shape.isPointInPath(ev.x, ev.y)) {
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36 | selectedShape = shape;
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37 | } else {
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38 | unSelectedShapes.push(shape);
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39 | }
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40 | });
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41 |
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42 | if (!selectedShape) {
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43 | self.reset();
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44 | return;
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45 | }
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46 |
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47 | if (selectedShape.get('_selected')) {
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48 | if (!self.cancelable) {
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49 | return;
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50 | }
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51 | self.reset();
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52 | } else {
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53 | const { selectStyle, unSelectStyle } = self;
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54 |
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55 | const originAttrs = getOriginalAttrs(selectedShape.attr(), selectedShape);
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56 | selectedShape.set('_originAttrs', originAttrs);
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57 | selectedShape.attr(selectStyle);
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58 |
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59 | Util.each(unSelectedShapes, child => {
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60 | let originAttrs = child.get('_originAttrs');
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61 |
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62 | if (originAttrs) {
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63 | child.attr(originAttrs);
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64 | }
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65 | child.set('_selected', false);
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66 |
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67 | if (unSelectStyle) {
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68 | originAttrs = getOriginalAttrs(child.attr(), unSelectStyle);
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69 | child.set('_originAttrs', originAttrs);
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70 | child.attr(unSelectStyle);
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71 | }
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72 | });
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73 |
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74 | selectedShape.set('_selected', true);
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75 | self.selectedShape = selectedShape;
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76 | self.canvas.draw();
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77 | }
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78 | }
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79 |
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80 | end(ev) {
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81 | const selectedShape = this.selectedShape;
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82 | if (selectedShape && !selectedShape.get('destroyed') && selectedShape.get('origin')) {
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83 | ev.data = selectedShape.get('origin')._origin;
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84 | ev.shapeInfo = selectedShape.get('origin');
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85 | ev.shape = selectedShape;
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86 | ev.selected = !!selectedShape.get('_selected');
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87 | }
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88 | }
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89 |
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90 | reset() {
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91 | const self = this;
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92 | if (!self.selectedShape) {
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93 | return;
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94 | }
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95 | const chart = self.view;
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96 | const geom = chart.get('geoms')[0];
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97 | const container = geom.get('container').get('children')[0];
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98 | const children = container.get('children');
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99 |
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100 | Util.each(children, child => {
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101 | const originAttrs = child.get('_originAttrs');
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102 | if (originAttrs) {
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103 | child._attrs = originAttrs;
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104 | child.set('_originAttrs', null);
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105 | }
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106 | child.set('_selected', false);
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107 | });
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108 | self.canvas.draw();
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109 | }
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110 | }
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111 |
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112 | module.exports = Select;
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