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Added Double-Click Feature that Isolates Legend-Items #871

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Added Double-Click Feature that Isolates Legend-Items #871

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60 changes: 53 additions & 7 deletions src/components/legend/draw.js
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Original file line number Diff line number Diff line change
Expand Up @@ -389,16 +389,47 @@ function setupTraceToggle(g, gd) {
.attr('pointer-events', 'all')
.call(Color.fill, 'rgba(0,0,0,0)');

traceToggle.on('click', function() {
// This means it'll take a minimum of 200ms to take the single
// click action. If it's too short the single and double actions
// will be called.
// The default time between clicks on windows is 200ms (http://en.wikipedia.org/wiki/Double-click)
// Adjust accordingly.
var timeOut = 200;
var timeoutID = 0;
var ignoreSingleClicks = false;

traceToggle.on('click', function() {
if (!ignoreSingleClicks) {
// The double click generates two single click events
// and then a double click event so we always clear
// the last timeoutID
clearTimeout(timeoutID);

timeoutID = setTimeout(function() {
traceToggleByClickType(restyleBySingleClick);
}, timeOut);
}
});

traceToggle.on('dblclick', function() {
clearTimeout(timeoutID);
ignoreSingleClicks = true;

setTimeout(function() {
ignoreSingleClicks = false;
}, timeOut);
traceToggleByClickType(restyleByDoubleClick);
});

var traceToggleByClickType = function (restyleCondition) {
if(gd._dragged) return;

var legendItem = g.data()[0][0],
fullData = gd._fullData,
trace = legendItem.trace,
legendgroup = trace.legendgroup,
traceIndicesInGroup = [],
tracei,
newVisible;
tracei;

if(Plots.traceIs(trace, 'pie')) {
var thisLabel = legendItem.label,
Expand All @@ -419,11 +450,26 @@ function setupTraceToggle(g, gd) {
}
}
}

newVisible = trace.visible === true ? 'legendonly' : true;
Plotly.restyle(gd, 'visible', newVisible, traceIndicesInGroup);
restyleCondition(trace, traceIndicesInGroup);
}
});
};

var restyleBySingleClick = function (trace, traceIndicesInGroup) {
var newVisible = trace.visible === true ? 'legendonly' : true;
Plotly.restyle(gd, 'visible', newVisible, traceIndicesInGroup);
};

var restyleByDoubleClick = function (trace, traceIndicesInGroup) {
var calcdata = gd.calcdata;
var items = [];
Plotly.restyle(gd, 'visible', true, traceIndicesInGroup);

for(var i = 0; i < calcdata.length; i++){
if(i !== traceIndicesInGroup[0]){
items.push(i);
}
} Plotly.restyle(gd, 'visible', 'legendonly', items);
};
}

function computeTextDimensions(g, gd) {
Expand Down