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Fix hover behavior

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This commit is contained in:
Bryan Housel
2016-09-24 00:55:35 -04:00
parent 12afac526b
commit ab1b5ad39c
1 changed files with 36 additions and 31 deletions
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67
modules/behavior/hover.js
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@@ -14,7 +14,8 @@ import { Entity } from '../core/index';
*/
export function Hover() {
var dispatch = d3.dispatch('hover'),
selection,
selection = d3.select(null),
buttonDown,
altDisables,
target;
@@ -69,41 +70,45 @@ export function Hover() {
}
}
var down;
function mouseover(evt) {
if (down) return;
var target = d3.event.target;
enter(target ? target.__data__ : null);
}
function mouseout() {
if (down) return;
var target = d3.event.relatedTarget;
enter(target ? target.__data__ : null);
}
function mousedown() {
down = true;
d3.select(window)
.on('mouseup.hover', mouseup);
}
function mouseup() {
down = false;
}
selection
.on('mouseover.hover', mouseover)
.on('mouseout.hover', mouseout)
.on('mousedown.hover', mousedown)
.on('mouseup.hover', mouseup);
.on('mousedown.hover', mousedown);
d3.select(window)
.on('keydown.hover', keydown)
.on('keyup.hover', keyup);
function mouseover() {
if (buttonDown) return;
var target = d3.event.target;
enter(target ? target.__data__ : null);
}
function mouseout() {
if (buttonDown) return;
var target = d3.event.relatedTarget;
enter(target ? target.__data__ : null);
}
function mousedown() {
buttonDown = true;
d3.select(window)
.on('mouseup.hover', mouseup, true);
}
function mouseup() {
buttonDown = false;
d3.select(window)
.on('mouseup.hover', null, true);
}
};
hover.off = function(selection) {
selection.selectAll('.hover')
.classed('hover', false);
@@ -113,20 +118,20 @@ export function Hover() {
selection
.on('mouseover.hover', null)
.on('mouseout.hover', null)
.on('mousedown.hover', null)
.on('mouseup.hover', null);
.on('mousedown.hover', null);
d3.select(window)
.on('keydown.hover', null)
.on('keyup.hover', null)
.on('mouseup.hover', null);
.on('keyup.hover', null);
};
hover.altDisables = function(_) {
if (!arguments.length) return altDisables;
altDisables = _;
return hover;
};
return rebind(hover, dispatch, 'on');
}