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/* *
* Networkgraph series
*
* (c) 2010-2019 Paweł Fus
*
* License: www.highcharts.com/license
*/
import H from '../../parts/Globals.js';
var Chart = H.Chart,
addEvent = H.addEvent;
H.dragNodesMixin = {
/**
* Mouse down action, initializing drag&drop mode.
*
* @private
*
* @param {global.Event} event Browser event, before normalization.
* @param {Highcharts.Point} point The point that event occured.
*
* @return {void}
*/
onMouseDown: function (point, event) {
var normalizedEvent = this.chart.pointer.normalize(event);
point.fixedPosition = {
chartX: normalizedEvent.chartX,
chartY: normalizedEvent.chartY,
plotX: point.plotX,
plotY: point.plotY
};
point.inDragMode = true;
},
/**
* Mouse move action during drag&drop.
*
* @private
*
* @param {global.Event} event Browser event, before normalization.
* @param {Highcharts.Point} point The point that event occured.
*
* @return {void}
*/
onMouseMove: function (point, event) {
if (point.fixedPosition && point.inDragMode) {
var series = this,
chart = series.chart,
normalizedEvent = chart.pointer.normalize(event),
diffX = point.fixedPosition.chartX - normalizedEvent.chartX,
diffY = point.fixedPosition.chartY - normalizedEvent.chartY,
newPlotX,
newPlotY;
// At least 5px to apply change (avoids simple click):
if (Math.abs(diffX) > 5 || Math.abs(diffY) > 5) {
newPlotX = point.fixedPosition.plotX - diffX;
newPlotY = point.fixedPosition.plotY - diffY;
if (chart.isInsidePlot(newPlotX, newPlotY)) {
point.plotX = newPlotX;
point.plotY = newPlotY;
this.redrawHalo(point);
if (!series.layout.simulation) {
// When dragging nodes, we don't need to calculate
// initial positions and rendering nodes:
series.layout.setInitialRendering(false);
// Start new simulation:
if (!series.layout.enableSimulation) {
// Run only one iteration to speed things up:
series.layout.setMaxIterations(1);
} else {
series.layout.start();
}
series.chart.redraw();
// Restore defaults:
series.layout.setInitialRendering(true);
} else {
// Extend current simulation:
series.layout.resetSimulation();
}
}
}
}
},
/**
* Mouse up action, finalizing drag&drop.
*
* @private
*
* @param {Highcharts.Point} point The point that event occured.
*
* @return {void}
*/
onMouseUp: function (point) {
if (point.fixedPosition) {
if (this.layout.enableSimulation) {
this.layout.start();
} else {
this.chart.redraw();
}
point.inDragMode = false;
if (!this.options.fixedDraggable) {
delete point.fixedPosition;
}
}
},
// Draggable mode:
/**
* Redraw halo on mousemove during the drag&drop action.
*
* @private
*
* @param {Highcharts.Point} point The point that should show halo.
*
* @return {void}
*/
redrawHalo: function (point) {
if (point && this.halo) {
this.halo.attr({
d: point.haloPath(
this.options.states.hover.halo.size
)
});
}
}
};
/*
* Draggable mode:
*/
addEvent(
Chart,
'load',
function () {
var chart = this,
mousedownUnbinder,
mousemoveUnbinder,
mouseupUnbinder;
if (chart.container) {
mousedownUnbinder = addEvent(
chart.container,
'mousedown',
function (event) {
var point = chart.hoverPoint;
if (
point &&
point.series &&
point.series.hasDraggableNodes &&
point.series.options.draggable
) {
point.series.onMouseDown(point, event);
mousemoveUnbinder = addEvent(
chart.container,
'mousemove',
function (e) {
return point &&
point.series &&
point.series.onMouseMove(point, e);
}
);
mouseupUnbinder = addEvent(
chart.container.ownerDocument,
'mouseup',
function (e) {
mousemoveUnbinder();
mouseupUnbinder();
return point &&
point.series &&
point.series.onMouseUp(point, e);
}
);
}
}
);
}
addEvent(chart, 'destroy', function () {
mousedownUnbinder();
});
}
);