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Use pointer events instead of mouse events for lasso selection (re: #5505)

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This commit is contained in:
Quincy Morgan
2020-03-13 13:23:06 -07:00
parent de1bfe624f
commit dd9c30beb1
1 changed files with 9 additions and 6 deletions
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15
modules/behavior/lasso.js
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@@ -7,6 +7,9 @@ import { uiLasso } from '../ui/lasso';
export function behaviorLasso(context) {
// use pointer events on supported platforms; fallback to mouse events
var _pointerPrefix = 'PointerEvent' in window ? 'pointer' : 'mouse';
var behavior = function(selection) {
var lasso;
@@ -17,8 +20,8 @@ export function behaviorLasso(context) {
lasso = null;
d3_select(window)
.on('mousemove.lasso', mousemove)
.on('mouseup.lasso', mouseup);
.on(_pointerPrefix + 'move.lasso', mousemove)
.on(_pointerPrefix + 'up.lasso', mouseup);
d3_event.stopPropagation();
}
@@ -62,8 +65,8 @@ export function behaviorLasso(context) {
function mouseup() {
d3_select(window)
.on('mousemove.lasso', null)
.on('mouseup.lasso', null);
.on(_pointerPrefix + 'move.lasso', null)
.on(_pointerPrefix + 'up.lasso', null);
if (!lasso) return;
@@ -76,12 +79,12 @@ export function behaviorLasso(context) {
}
selection
.on('mousedown.lasso', mousedown);
.on(_pointerPrefix + 'down.lasso', mousedown);
};
behavior.off = function(selection) {
selection.on('mousedown.lasso', null);
selection.on(_pointerPrefix + 'down.lasso', null);
};