161 lines
4.4 KiB
JavaScript
161 lines
4.4 KiB
JavaScript
/* *
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*
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* Networkgraph series
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*
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* (c) 2010-2024 Paweł Fus
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*
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* License: www.highcharts.com/license
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*
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* !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
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*
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* */
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'use strict';
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import H from '../Core/Globals.js';
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const { composed } = H;
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import U from '../Core/Utilities.js';
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const { addEvent, pushUnique } = U;
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/* *
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*
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* Functions
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*
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* */
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/**
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* @private
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*/
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function compose(ChartClass) {
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if (pushUnique(composed, 'DragNodes')) {
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addEvent(ChartClass, 'load', onChartLoad);
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}
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}
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/**
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* Draggable mode:
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* @private
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*/
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function onChartLoad() {
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const chart = this;
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let mousedownUnbinder, mousemoveUnbinder, mouseupUnbinder;
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if (chart.container) {
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mousedownUnbinder = addEvent(chart.container, 'mousedown', (event) => {
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const point = chart.hoverPoint;
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if (point &&
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point.series &&
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point.series.hasDraggableNodes &&
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point.series.options.draggable) {
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point.series.onMouseDown(point, event);
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mousemoveUnbinder = addEvent(chart.container, 'mousemove', (e) => (point &&
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point.series &&
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point.series.onMouseMove(point, e)));
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mouseupUnbinder = addEvent(chart.container.ownerDocument, 'mouseup', (e) => {
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mousemoveUnbinder();
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mouseupUnbinder();
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return point &&
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point.series &&
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point.series.onMouseUp(point, e);
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});
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}
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});
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}
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addEvent(chart, 'destroy', function () {
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mousedownUnbinder();
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});
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}
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/**
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* Mouse down action, initializing drag&drop mode.
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*
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* @private
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* @param {Highcharts.Point} point
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* The point that event occurred.
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* @param {Highcharts.PointerEventObject} event
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* Browser event, before normalization.
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*/
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function onMouseDown(point, event) {
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const normalizedEvent = this.chart.pointer?.normalize(event) || event;
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point.fixedPosition = {
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chartX: normalizedEvent.chartX,
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chartY: normalizedEvent.chartY,
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plotX: point.plotX,
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plotY: point.plotY
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};
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point.inDragMode = true;
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}
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/**
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* Mouse move action during drag&drop.
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*
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* @private
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*
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* @param {Highcharts.Point} point
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* The point that event occurred.
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* @param {global.Event} event
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* Browser event, before normalization.
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*/
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function onMouseMove(point, event) {
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if (point.fixedPosition && point.inDragMode) {
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const series = this, chart = series.chart, normalizedEvent = chart.pointer?.normalize(event) || event, diffX = point.fixedPosition.chartX - normalizedEvent.chartX, diffY = point.fixedPosition.chartY - normalizedEvent.chartY, graphLayoutsLookup = chart.graphLayoutsLookup;
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let newPlotX, newPlotY;
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// At least 5px to apply change (avoids simple click):
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if (Math.abs(diffX) > 5 || Math.abs(diffY) > 5) {
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newPlotX = point.fixedPosition.plotX - diffX;
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newPlotY = point.fixedPosition.plotY - diffY;
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if (chart.isInsidePlot(newPlotX, newPlotY)) {
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point.plotX = newPlotX;
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point.plotY = newPlotY;
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point.hasDragged = true;
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this.redrawHalo(point);
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graphLayoutsLookup.forEach((layout) => {
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layout.restartSimulation();
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});
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}
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}
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}
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}
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/**
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* Mouse up action, finalizing drag&drop.
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*
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* @private
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* @param {Highcharts.Point} point
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* The point that event occurred.
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*/
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function onMouseUp(point) {
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if (point.fixedPosition) {
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if (point.hasDragged) {
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if (this.layout.enableSimulation) {
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this.layout.start();
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}
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else {
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this.chart.redraw();
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}
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}
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point.inDragMode = point.hasDragged = false;
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if (!this.options.fixedDraggable) {
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delete point.fixedPosition;
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}
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}
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}
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/**
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* Redraw halo on mousemove during the drag&drop action.
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*
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* @private
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* @param {Highcharts.Point} point
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* The point that should show halo.
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*/
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function redrawHalo(point) {
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if (point && this.halo) {
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this.halo.attr({
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d: point.haloPath(this.options.states.hover.halo.size)
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});
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}
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}
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/* *
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*
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* Default Export
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*
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* */
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const DragNodesComposition = {
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compose,
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onMouseDown,
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onMouseMove,
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onMouseUp,
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redrawHalo
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};
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export default DragNodesComposition;
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