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legend_test.js
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var Plotly = require('@lib/index');
var Plots = require('@src/plots/plots');
var Lib = require('@src/lib');
var DBLCLICKDELAY = require('@src/plot_api/plot_config').dfltConfig.doubleClickDelay;
var Legend = require('@src/components/legend');
var getLegendData = require('@src/components/legend/get_legend_data');
var helpers = require('@src/components/legend/helpers');
var d3 = require('d3');
var failTest = require('../assets/fail_test');
var mouseEvent = require('../assets/mouse_event');
var delay = require('../assets/delay');
var createGraphDiv = require('../assets/create_graph_div');
var destroyGraphDiv = require('../assets/destroy_graph_div');
var assertPlotSize = require('../assets/custom_assertions').assertPlotSize;
var mock = require('@mocks/legend_horizontal.json');
var Drawing = require('@src/components/drawing');
describe('legend defaults', function() {
'use strict';
var supplyLayoutDefaults = Legend.supplyLayoutDefaults;
var layoutIn, layoutOut, fullData;
beforeEach(function() {
layoutIn = {
showlegend: true
};
layoutOut = {
font: Plots.layoutAttributes.font,
bg_color: Plots.layoutAttributes.bg_color
};
});
function allShown(fullData) {
return fullData.map(function(trace) {
return Lib.extendDeep({
visible: true,
showlegend: true,
_dfltShowLegend: true,
_input: {}
}, trace);
});
}
it('hides by default if there is only one legend item by default', function() {
fullData = allShown([
{type: 'scatter'},
{type: 'scatter', visible: false}, // ignored
{type: 'contour', _dfltShowLegend: false, showlegend: false} // hidden by default
]);
supplyLayoutDefaults({}, layoutOut, fullData);
expect(layoutOut.showlegend).toBe(false);
});
it('shows if there are two legend items by default but only one is shown', function() {
fullData = allShown([
{type: 'scatter'},
{type: 'scatter', showlegend: false} // not shown but still triggers legend
]);
supplyLayoutDefaults({}, layoutOut, fullData);
expect(layoutOut.showlegend).toBe(true);
});
it('hides if no items are actually shown', function() {
fullData = allShown([
{type: 'scatter', showlegend: false},
{type: 'scatter', showlegend: false}
]);
supplyLayoutDefaults({}, layoutOut, fullData);
expect(layoutOut.showlegend).toBe(false);
});
it('shows with one visible pie', function() {
fullData = allShown([
{type: 'pie'}
]);
supplyLayoutDefaults({}, layoutOut, fullData);
expect(layoutOut.showlegend).toBe(true);
});
it('does not show with a hidden pie', function() {
fullData = allShown([
{type: 'pie', showlegend: false}
]);
supplyLayoutDefaults({}, layoutOut, fullData);
expect(layoutOut.showlegend).toBe(false);
});
it('shows if even a default hidden single item is explicitly shown', function() {
fullData = allShown([
{type: 'contour', _dfltShowLegend: false, _input: {showlegend: true}}
]);
supplyLayoutDefaults({}, layoutOut, fullData);
expect(layoutOut.showlegend).toBe(true);
});
it('should default traceorder to reversed for stack bar charts', function() {
fullData = allShown([
{type: 'bar', visible: 'legendonly'},
{type: 'bar', visible: 'legendonly'},
{type: 'scatter'}
]);
supplyLayoutDefaults(layoutIn, layoutOut, fullData);
expect(layoutOut.legend.traceorder).toEqual('normal');
layoutOut.barmode = 'stack';
supplyLayoutDefaults(layoutIn, layoutOut, fullData);
expect(layoutOut.legend.traceorder).toEqual('reversed');
});
it('should default traceorder to reversed for filled tonext scatter charts', function() {
fullData = allShown([
{type: 'scatter'},
{type: 'scatter', fill: 'tonexty'}
]);
supplyLayoutDefaults(layoutIn, layoutOut, fullData);
expect(layoutOut.legend.traceorder).toEqual('reversed');
});
it('should default traceorder to grouped when a group is present', function() {
fullData = allShown([
{type: 'scatter', legendgroup: 'group'},
{type: 'scatter'}
]);
supplyLayoutDefaults(layoutIn, layoutOut, fullData);
expect(layoutOut.legend.traceorder).toEqual('grouped');
fullData[1].fill = 'tonextx';
supplyLayoutDefaults(layoutIn, layoutOut, fullData);
expect(layoutOut.legend.traceorder).toEqual('grouped+reversed');
});
it('does not consider invisible traces for traceorder default', function() {
fullData = allShown([
{type: 'bar', visible: false},
{type: 'bar', visible: false},
{type: 'scatter'}
]);
layoutOut.barmode = 'stack';
supplyLayoutDefaults(layoutIn, layoutOut, fullData);
expect(layoutOut.legend.traceorder).toEqual('normal');
fullData = allShown([
{type: 'scatter', legendgroup: 'group', visible: false},
{type: 'scatter'}
]);
supplyLayoutDefaults(layoutIn, layoutOut, fullData);
expect(layoutOut.legend.traceorder).toEqual('normal');
});
it('should default orientation to vertical', function() {
supplyLayoutDefaults(layoutIn, layoutOut, []);
expect(layoutOut.legend.orientation).toEqual('v');
});
it('should not coerce `title.font` and `title.side` if the `title.text` is blank', function() {
var layoutWithTitle = Lib.extendDeep({
legend: {
title: {
text: ''
}
}
}, layoutIn);
supplyLayoutDefaults(layoutWithTitle, layoutOut, []);
expect(layoutOut.legend.title.font).toEqual(undefined);
expect(layoutOut.legend.title.side).toEqual(undefined);
});
it('should default `title.side` to *top* for vertical legends', function() {
var layoutWithTitle = Lib.extendDeep({
legend: {
title: {
text: 'Legend Title'
}
}
}, layoutIn);
supplyLayoutDefaults(layoutWithTitle, layoutOut, []);
expect(layoutOut.legend.title.side).toEqual('top');
});
it('should default `title.side` to *left* for horizontal legends', function() {
var layoutWithTitle = Lib.extendDeep({
legend: {
orientation: 'h',
title: {
text: 'Legend Title'
}
}
}, layoutIn);
supplyLayoutDefaults(layoutWithTitle, layoutOut, []);
expect(layoutOut.legend.title.side).toEqual('left');
});
describe('for horizontal legends', function() {
var layoutInForHorizontalLegends;
beforeEach(function() {
layoutInForHorizontalLegends = Lib.extendDeep({
legend: {
orientation: 'h'
},
xaxis: {
rangeslider: {
visible: false
}
}
}, layoutIn);
});
it('should default position to bottom left', function() {
supplyLayoutDefaults(layoutInForHorizontalLegends, layoutOut, []);
expect(layoutOut.legend.x).toEqual(0);
expect(layoutOut.legend.xanchor).toEqual('left');
expect(layoutOut.legend.y).toEqual(-0.1);
expect(layoutOut.legend.yanchor).toEqual('top');
});
it('should default position to top left if a range slider present', function() {
var mockLayoutIn = Lib.extendDeep({}, layoutInForHorizontalLegends);
mockLayoutIn.xaxis.rangeslider.visible = true;
supplyLayoutDefaults(mockLayoutIn, layoutOut, []);
expect(layoutOut.legend.x).toEqual(0);
expect(layoutOut.legend.xanchor).toEqual('left');
expect(layoutOut.legend.y).toEqual(1.1);
expect(layoutOut.legend.yanchor).toEqual('bottom');
});
});
});
describe('legend getLegendData', function() {
'use strict';
var calcdata, opts, legendData, expected;
it('should group legendgroup traces', function() {
calcdata = [
[{trace: {
type: 'scatter',
visible: true,
legendgroup: 'group',
showlegend: true
}}],
[{trace: {
type: 'bar',
visible: 'legendonly',
legendgroup: '',
showlegend: true
}}],
[{trace: {
type: 'scatter',
visible: true,
legendgroup: 'group',
showlegend: true
}}]
];
opts = {
traceorder: 'grouped'
};
legendData = getLegendData(calcdata, opts);
expected = [
[
[{trace: {
type: 'scatter',
visible: true,
legendgroup: 'group',
showlegend: true
}}],
[{trace: {
type: 'scatter',
visible: true,
legendgroup: 'group',
showlegend: true
}}]
],
[
[{trace: {
type: 'bar',
visible: 'legendonly',
legendgroup: '',
showlegend: true
}}]
]
];
expect(legendData).toEqual(expected);
expect(opts._lgroupsLength).toEqual(2);
});
it('should collapse when data has only one group', function() {
calcdata = [
[{trace: {
type: 'scatter',
visible: true,
legendgroup: '',
showlegend: true
}}],
[{trace: {
type: 'bar',
visible: 'legendonly',
legendgroup: '',
showlegend: true
}}],
[{trace: {
type: 'scatter',
visible: true,
legendgroup: '',
showlegend: true
}}]
];
opts = {
traceorder: 'grouped'
};
legendData = getLegendData(calcdata, opts);
expected = [
[
[{trace: {
type: 'scatter',
visible: true,
legendgroup: '',
showlegend: true
}}],
[{trace: {
type: 'bar',
visible: 'legendonly',
legendgroup: '',
showlegend: true
}}],
[{trace: {
type: 'scatter',
visible: true,
legendgroup: '',
showlegend: true
}}]
]
];
expect(legendData).toEqual(expected);
expect(opts._lgroupsLength).toEqual(1);
});
it('should return empty array when legend data has no traces', function() {
calcdata = [
[{trace: {
type: 'histogram',
visible: true,
legendgroup: '',
showlegend: false
}}],
[{trace: {
type: 'box',
visible: 'legendonly',
legendgroup: '',
showlegend: false
}}],
[{trace: {
type: 'heatmap',
visible: true,
legendgroup: ''
}}]
];
opts = {
_main: true,
traceorder: 'normal'
};
legendData = getLegendData(calcdata, opts);
expect(legendData).toEqual([]);
});
it('should reverse the order when legend.traceorder is set', function() {
calcdata = [
[{trace: {
type: 'scatter',
visible: true,
legendgroup: '',
showlegend: true
}}],
[{trace: {
type: 'bar',
visible: 'legendonly',
legendgroup: '',
showlegend: true
}}],
[{trace: {
type: 'box',
visible: true,
legendgroup: '',
showlegend: true
}}]
];
opts = {
traceorder: 'reversed'
};
legendData = getLegendData(calcdata, opts);
expected = [
[
[{trace: {
type: 'box',
visible: true,
legendgroup: '',
showlegend: true
}}],
[{trace: {
type: 'bar',
visible: 'legendonly',
legendgroup: '',
showlegend: true
}}],
[{trace: {
type: 'scatter',
visible: true,
legendgroup: '',
showlegend: true
}}]
]
];
expect(legendData).toEqual(expected);
expect(opts._lgroupsLength).toEqual(1);
});
it('should reverse the trace order within groups when reversed+grouped', function() {
calcdata = [
[{trace: {
type: 'scatter',
visible: true,
legendgroup: 'group',
showlegend: true
}}],
[{trace: {
type: 'bar',
visible: 'legendonly',
legendgroup: '',
showlegend: true
}}],
[{trace: {
type: 'box',
visible: true,
legendgroup: 'group',
showlegend: true
}}]
];
opts = {
traceorder: 'reversed+grouped'
};
legendData = getLegendData(calcdata, opts);
expected = [
[
[{trace: {
type: 'box',
visible: true,
legendgroup: 'group',
showlegend: true
}}],
[{trace: {
type: 'scatter',
visible: true,
legendgroup: 'group',
showlegend: true
}}]
],
[
[{trace: {
type: 'bar',
visible: 'legendonly',
legendgroup: '',
showlegend: true
}}]
]
];
expect(legendData).toEqual(expected);
expect(opts._lgroupsLength).toEqual(2);
});
});
describe('legend helpers:', function() {
'use strict';
describe('isGrouped', function() {
var isGrouped = helpers.isGrouped;
it('should return true when trace is visible and supports legend', function() {
expect(isGrouped({ traceorder: 'normal' })).toBe(false);
expect(isGrouped({ traceorder: 'grouped' })).toBe(true);
expect(isGrouped({ traceorder: 'reversed+grouped' })).toBe(true);
expect(isGrouped({ traceorder: 'grouped+reversed' })).toBe(true);
expect(isGrouped({ traceorder: 'reversed' })).toBe(false);
});
});
describe('isReversed', function() {
var isReversed = helpers.isReversed;
it('should return true when trace is visible and supports legend', function() {
expect(isReversed({ traceorder: 'normal' })).toBe(false);
expect(isReversed({ traceorder: 'grouped' })).toBe(false);
expect(isReversed({ traceorder: 'reversed+grouped' })).toBe(true);
expect(isReversed({ traceorder: 'grouped+reversed' })).toBe(true);
expect(isReversed({ traceorder: 'reversed' })).toBe(true);
});
});
});
describe('legend anchor utils:', function() {
'use strict';
describe('isRightAnchor', function() {
var isRightAnchor = Lib.isRightAnchor;
var threshold = 2 / 3;
it('should return true when \'xanchor\' is set to \'right\'', function() {
expect(isRightAnchor({ xanchor: 'left' })).toBe(false);
expect(isRightAnchor({ xanchor: 'center' })).toBe(false);
expect(isRightAnchor({ xanchor: 'right' })).toBe(true);
});
it('should return true when \'xanchor\' is set to \'auto\' and \'x\' >= 2/3', function() {
var opts = { xanchor: 'auto' };
[0, 0.4, 0.7, 1].forEach(function(v) {
opts.x = v;
expect(isRightAnchor(opts))
.toBe(v > threshold, 'case ' + v);
});
});
});
describe('isCenterAnchor', function() {
var isCenterAnchor = Lib.isCenterAnchor;
var threshold0 = 1 / 3;
var threshold1 = 2 / 3;
it('should return true when \'xanchor\' is set to \'center\'', function() {
expect(isCenterAnchor({ xanchor: 'left' })).toBe(false);
expect(isCenterAnchor({ xanchor: 'center' })).toBe(true);
expect(isCenterAnchor({ xanchor: 'right' })).toBe(false);
});
it('should return true when \'xanchor\' is set to \'auto\' and 1/3 < \'x\' < 2/3', function() {
var opts = { xanchor: 'auto' };
[0, 0.4, 0.7, 1].forEach(function(v) {
opts.x = v;
expect(isCenterAnchor(opts))
.toBe(v > threshold0 && v < threshold1, 'case ' + v);
});
});
});
describe('isBottomAnchor', function() {
var isBottomAnchor = Lib.isBottomAnchor;
var threshold = 1 / 3;
it('should return true when \'yanchor\' is set to \'right\'', function() {
expect(isBottomAnchor({ yanchor: 'top' })).toBe(false);
expect(isBottomAnchor({ yanchor: 'middle' })).toBe(false);
expect(isBottomAnchor({ yanchor: 'bottom' })).toBe(true);
});
it('should return true when \'yanchor\' is set to \'auto\' and \'y\' <= 1/3', function() {
var opts = { yanchor: 'auto' };
[0, 0.4, 0.7, 1].forEach(function(v) {
opts.y = v;
expect(isBottomAnchor(opts))
.toBe(v < threshold, 'case ' + v);
});
});
});
describe('isMiddleAnchor', function() {
var isMiddleAnchor = Lib.isMiddleAnchor;
var threshold0 = 1 / 3;
var threshold1 = 2 / 3;
it('should return true when \'yanchor\' is set to \'center\'', function() {
expect(isMiddleAnchor({ yanchor: 'top' })).toBe(false);
expect(isMiddleAnchor({ yanchor: 'middle' })).toBe(true);
expect(isMiddleAnchor({ yanchor: 'bottom' })).toBe(false);
});
it('should return true when \'yanchor\' is set to \'auto\' and 1/3 < \'y\' < 2/3', function() {
var opts = { yanchor: 'auto' };
[0, 0.4, 0.7, 1].forEach(function(v) {
opts.y = v;
expect(isMiddleAnchor(opts))
.toBe(v > threshold0 && v < threshold1, 'case ' + v);
});
});
});
});
describe('legend relayout update', function() {
var gd;
beforeEach(function() {
gd = createGraphDiv();
});
afterEach(destroyGraphDiv);
it('should hide and show the legend', function(done) {
var mockCopy = Lib.extendDeep({}, require('@mocks/0.json'), {layout: {
legend: {x: 1.1, xanchor: 'left'},
margin: {l: 50, r: 50, pad: 0},
width: 500
}});
Plotly.newPlot(gd, mockCopy.data, mockCopy.layout)
.then(function() {
expect(d3.selectAll('g.legend').size()).toBe(1);
// check that the margins changed
assertPlotSize({widthLessThan: 400});
return Plotly.relayout(gd, {showlegend: false});
})
.then(function() {
expect(d3.selectAll('g.legend').size()).toBe(0);
assertPlotSize({width: 400});
return Plotly.relayout(gd, {showlegend: true});
})
.then(function() {
expect(d3.selectAll('g.legend').size()).toBe(1);
assertPlotSize({widthLessThan: 400});
return Plotly.relayout(gd, {'legend.x': 0.7});
})
.then(function() {
expect(d3.selectAll('g.legend').size()).toBe(1);
assertPlotSize({width: 400});
})
.catch(failTest)
.then(done);
});
it('should update border styling', function(done) {
var mockCopy = Lib.extendDeep({}, require('@mocks/0.json'));
function assertLegendStyle(bgColor, borderColor, borderWidth) {
var node = d3.select('g.legend').select('rect').node();
expect(node.style.fill).toEqual(bgColor);
expect(node.style.stroke).toEqual(borderColor);
expect(node.style.strokeWidth).toEqual(borderWidth + 'px');
}
Plotly.plot(gd, mockCopy.data, mockCopy.layout).then(function() {
assertLegendStyle('rgb(255, 255, 255)', 'rgb(0, 0, 0)', 1);
return Plotly.relayout(gd, {
'legend.bordercolor': 'red',
'legend.bgcolor': 'blue'
});
}).then(function() {
assertLegendStyle('rgb(0, 0, 255)', 'rgb(255, 0, 0)', 1);
return Plotly.relayout(gd, 'legend.borderwidth', 10);
}).then(function() {
assertLegendStyle('rgb(0, 0, 255)', 'rgb(255, 0, 0)', 10);
return Plotly.relayout(gd, 'legend.bgcolor', null);
}).then(function() {
assertLegendStyle('rgb(255, 255, 255)', 'rgb(255, 0, 0)', 10);
return Plotly.relayout(gd, 'paper_bgcolor', 'blue');
}).then(function() {
assertLegendStyle('rgb(0, 0, 255)', 'rgb(255, 0, 0)', 10);
})
.catch(failTest)
.then(done);
});
describe('should update legend valign', function() {
function markerOffsetY() {
var translate = Drawing.getTranslate(d3.select('.legend .traces .layers'));
return translate.y;
}
it('it should translate markers', function(done) {
var mockCopy = Lib.extendDeep({}, require('@mocks/legend_valign_top.json'));
var top, middle, bottom;
Plotly.plot(gd, mockCopy.data, mockCopy.layout)
.then(function() {
top = markerOffsetY();
return Plotly.relayout(gd, 'legend.valign', 'middle');
})
.then(function() {
middle = markerOffsetY();
expect(middle).toBeGreaterThan(top);
return Plotly.relayout(gd, 'legend.valign', 'bottom');
})
.then(function() {
bottom = markerOffsetY();
expect(bottom).toBeGreaterThan(middle);
})
.catch(failTest)
.then(done);
});
});
describe('with legendgroup', function() {
it('changes the margin size to fit tracegroupgap', function(done) {
var mockCopy = Lib.extendDeep({}, require('@mocks/legendgroup_horizontal_wrapping.json'));
Plotly.newPlot(gd, mockCopy)
.then(function() {
expect(gd._fullLayout._size.b).toBe(113);
return Plotly.relayout(gd, 'legend.tracegroupgap', 70);
})
.then(function() {
expect(gd._fullLayout._size.b).toBe(167);
return Plotly.relayout(gd, 'legend.tracegroupgap', 10);
})
.then(function() {
expect(gd._fullLayout._size.b).toBe(113);
})
.catch(failTest)
.then(done);
});
});
it('should make legend fit in graph viewport', function(done) {
var fig = Lib.extendDeep({}, require('@mocks/legend_negative_x.json'));
function _assert(msg, xy, wh) {
return function() {
var fullLayout = gd._fullLayout;
var legend3 = d3.select('g.legend');
var bg3 = legend3.select('rect.bg');
var translate = Drawing.getTranslate(legend3);
var x = translate.x;
var y = translate.y;
var w = +bg3.attr('width');
var h = +bg3.attr('height');
expect([x, y]).toBeWithinArray(xy, 25, msg + '| legend x,y');
expect([w, h]).toBeWithinArray(wh, 25, msg + '| legend w,h');
expect(x + w <= fullLayout.width).toBe(true, msg + '| fits in x');
expect(y + h <= fullLayout.height).toBe(true, msg + '| fits in y');
};
}
Plotly.plot(gd, fig)
.then(_assert('base', [5, 4.4], [512, 29]))
.then(function() { return Plotly.relayout(gd, 'legend.x', 0.8); })
.then(_assert('after relayout almost to right edge', [188, 4.4], [512, 29]))
.catch(failTest)
.then(done);
});
it('should fit in graph viewport when changing legend.title.side', function(done) {
var fig = Lib.extendDeep({}, require('@mocks/0.json'));
fig.layout.legend = {
title: {
text: 'legend title'
}
};
function _assert(msg, xy, wh) {
return function() {
var fullLayout = gd._fullLayout;
var legend3 = d3.select('g.legend');
var bg3 = legend3.select('rect.bg');
var translate = Drawing.getTranslate(legend3);
var x = translate.x;
var y = translate.y;
var w = +bg3.attr('width');
var h = +bg3.attr('height');
expect([x, y]).toBeWithinArray(xy, 25, msg + '| legend x,y');
expect([w, h]).toBeWithinArray(wh, 25, msg + '| legend w,h');
expect(x + w <= fullLayout.width).toBe(true, msg + '| fits in x');
expect(y + h <= fullLayout.height).toBe(true, msg + '| fits in y');
};
}
Plotly.plot(gd, fig)
.then(_assert('base', [667.72, 60], [120, 83]))
.then(function() { return Plotly.relayout(gd, 'legend.title.side', 'left'); })
.then(_assert('after relayout to *left*', [607.54, 60], [180, 67]))
.then(function() { return Plotly.relayout(gd, 'legend.title.side', 'top'); })
.then(_assert('after relayout to *top*', [667.72, 60], [120, 83]))
.catch(failTest)
.then(done);
});
it('should be able to clear legend title using react', function(done) {
var data = [{
type: 'scatter',
x: [0, 1],
y: [1, 0]
}];
Plotly.newPlot(gd, {
data: data,
layout: {
showlegend: true,
legend: {
title: {
text: 'legend<br>title'
}
}
}
})
.then(function() {
expect(d3.selectAll('.legendtitletext')[0].length).toBe(1);
})
.then(function() {
Plotly.react(gd, {
data: data,
layout: {
showlegend: true
}
});
})
.then(function() {
expect(d3.selectAll('.legendtitletext')[0].length).toBe(0);
})
.catch(failTest)
.then(done);
});
});
describe('legend orientation change:', function() {
'use strict';
afterEach(destroyGraphDiv);
it('should update plot background', function(done) {
var mock = require('@mocks/legend_horizontal_autowrap.json');
var gd = createGraphDiv();
var initialLegendBGColor;
Plotly.plot(gd, mock.data, mock.layout).then(function() {
initialLegendBGColor = gd._fullLayout.legend.bgcolor;
return Plotly.relayout(gd, 'legend.bgcolor', '#000000');
}).then(function() {
expect(gd._fullLayout.legend.bgcolor).toBe('#000000');
return Plotly.relayout(gd, 'legend.bgcolor', initialLegendBGColor);
}).then(function() {
expect(gd._fullLayout.legend.bgcolor).toBe(initialLegendBGColor);
done();
});
});
});
describe('legend restyle update', function() {
'use strict';
afterEach(destroyGraphDiv);
it('should update trace toggle background rectangle', function(done) {
var mock = require('@mocks/0.json');
var mockCopy = Lib.extendDeep({}, mock);
var gd = createGraphDiv();
mockCopy.data[0].visible = false;
mockCopy.data[0].showlegend = false;
mockCopy.data[1].visible = false;
mockCopy.data[1].showlegend = false;
function countLegendItems() {
return d3.select(gd).selectAll('rect.legendtoggle').size();
}
function assertTraceToggleRect() {
var nodes = d3.selectAll('rect.legendtoggle');
nodes.each(function() {
var node = d3.select(this);
expect(node.attr('x')).toEqual('0');
expect(node.attr('y')).toEqual('-9.5');
expect(node.attr('height')).toEqual('19');
var w = +node.attr('width');
expect(w).toBeWithin(113, 10);
});
}
Plotly.plot(gd, mockCopy.data, mockCopy.layout).then(function() {
expect(countLegendItems()).toEqual(1);
assertTraceToggleRect();
return Plotly.restyle(gd, 'visible', [true, false, false]);
}).then(function() {
expect(countLegendItems()).toEqual(0);
return Plotly.restyle(gd, 'showlegend', [true, false, false]);
}).then(function() {
expect(countLegendItems()).toEqual(1);
assertTraceToggleRect();
done();
});
});
});
describe('legend interaction', function() {
'use strict';
describe('pie chart', function() {
var mockCopy, gd, legendItems, legendItem, legendLabels, legendLabel;
var testEntry = 2;
beforeAll(function(done) {
var mock = require('@mocks/pie_simple.json');
mockCopy = Lib.extendDeep({}, mock);
gd = createGraphDiv();
Plotly.plot(gd, mockCopy.data, mockCopy.layout).then(function() {
legendItems = d3.selectAll('rect.legendtoggle')[0];
legendLabels = d3.selectAll('text.legendtext')[0];
legendItem = legendItems[testEntry];
legendLabel = legendLabels[testEntry].innerHTML;
done();
});
});
afterAll(destroyGraphDiv);
describe('single click', function() {
it('should hide slice', function(done) {
legendItem.dispatchEvent(new MouseEvent('mousedown'));
legendItem.dispatchEvent(new MouseEvent('mouseup'));
setTimeout(function() {
expect(gd._fullLayout.hiddenlabels.length).toBe(1);
expect(gd._fullLayout.hiddenlabels[0]).toBe(legendLabel);
done();
}, DBLCLICKDELAY + 20);
});
it('should fade legend item', function() {
expect(+legendItem.parentNode.style.opacity).toBeLessThan(1);
});
it('should unhide slice', function(done) {
legendItem.dispatchEvent(new MouseEvent('mousedown'));
legendItem.dispatchEvent(new MouseEvent('mouseup'));
setTimeout(function() {
expect(gd._fullLayout.hiddenlabels.length).toBe(0);
done();
}, DBLCLICKDELAY + 20);
});
it('should unfade legend item', function() {
expect(+legendItem.parentNode.style.opacity).toBe(1);
});
});
describe('double click', function() {
it('should hide other slices', function(done) {
legendItem.dispatchEvent(new MouseEvent('mousedown'));
legendItem.dispatchEvent(new MouseEvent('mouseup'));
legendItem.dispatchEvent(new MouseEvent('mousedown'));
legendItem.dispatchEvent(new MouseEvent('mouseup'));
setTimeout(function() {
expect(gd._fullLayout.hiddenlabels.length).toBe((legendItems.length - 1));
expect(gd._fullLayout.hiddenlabels.indexOf(legendLabel)).toBe(-1);
done();
}, 20);
});
it('should fade other legend items', function() {
var legendItemi;