Chart.js/docs/samples/advanced/programmatic-events.md
Evert Timberg 66ee0fecaf
Vuepress samples (#8756)
* Generate API docs with vuepress-plugin-typedoc

* Links, fixes, cleanup

* Convert bar samples to Vuepress

* Some line chart samples moved over

* Fix lint issues

* Derived axis type sample

* LineAreaStacked chart created in vuepress

* added radar area axample

* Line dataset added sample

* final area example added

* Add derived-chart-type

* Bar scriptable sample

* Scriptable samples

* Clean lint errors

* added linear axis samples to vuepress

* change tab to spaces to fix lint error

* Convert the rest of the scale samples

* Scale option samples

* Fix typo

* Fixes

* Legend samples

* Title samples

* Change the title of the tip block to Note (#8758)

* Convert bar samples to Vuepress

* Some line chart samples moved over

* Fix lint issues

* Derived axis type sample

* LineAreaStacked chart created in vuepress

* added radar area axample

* Line dataset added sample

* final area example added

* Add derived-chart-type

* Bar scriptable sample

* Scriptable samples

* Clean lint errors

* added linear axis samples to vuepress

* change tab to spaces to fix lint error

* Convert the rest of the scale samples

* Scale option samples

* Fix typo

* Fixes

* Legend samples

* Advanced samples

* Remove extra section

* Animation samples

* Hide legend from progressive line

* Add a comment on what `from` does

* Tooltip samples

* Ädd other charts to vuepress samples

* enable plugin again since all samples have been converted

* fix skip radar example, middle skip was not calculated correctly

* lint error

* Progressive-line: add 2nd line

* Fix lint errors

Co-authored-by: Jukka Kurkela <jukka.kurkela@gmail.com>
Co-authored-by: Jacco van den Berg <jaccoberg2281@gmail.com>
Co-authored-by: Jacco van den Berg <39033624+LeeLenaleee@users.noreply.github.com>
2021-04-02 08:04:39 -04:00

104 lines
2.0 KiB
Markdown

# Programmatic Event Triggers
```js chart-editor
// <block:hover:0>
function triggerHover(chart) {
if (chart.getActiveElements().length > 0) {
chart.setActiveElements([]);
} else {
chart.setActiveElements([
{
datasetIndex: 0,
index: 0,
}, {
datasetIndex: 1,
index: 0,
}
]);
}
chart.update();
}
// </block:hover>
// <block:tooltip:1>
function triggerTooltip(chart) {
const tooltip = chart.tooltip;
if (tooltip.getActiveElements().length > 0) {
tooltip.setActiveElements([], {x: 0, y: 0});
} else {
const chartArea = chart.chartArea;
tooltip.setActiveElements([
{
datasetIndex: 0,
index: 2,
}, {
datasetIndex: 1,
index: 2,
}
],
{
x: (chartArea.left + chartArea.right) / 2,
y: (chartArea.top + chartArea.bottom) / 2,
});
}
chart.update();
}
// </block:tooltip>
// <block:actions:2>
const actions = [
{
name: 'Trigger Hover',
handler: triggerHover
},
{
name: 'Trigger Tooltip',
handler: triggerTooltip
}
];
// </block:actions>
// <block:setup:4>
const DATA_COUNT = 7;
const NUMBER_CFG = {count: DATA_COUNT, min: -100, max: 100};
const labels = Utils.months({count: 7});
const data = {
labels: labels,
datasets: [
{
label: 'Dataset 1',
data: Utils.numbers(NUMBER_CFG),
borderColor: Utils.CHART_COLORS.red,
backgroundColor: Utils.transparentize(Utils.CHART_COLORS.red, 0.5),
hoverBorderWidth: 5,
hoverBorderColor: 'green',
},
{
label: 'Dataset 2',
data: Utils.numbers(NUMBER_CFG),
borderColor: Utils.CHART_COLORS.blue,
backgroundColor: Utils.transparentize(Utils.CHART_COLORS.blue, 0.5),
hoverBorderWidth: 5,
hoverBorderColor: 'green',
}
]
};
// </block:setup>
// <block:config:3>
const config = {
type: 'bar',
data: data,
options: {
},
};
// </block:config>
module.exports = {
actions: actions,
config: config,
};
```