# Interface: Tooltip
# Hierarchy
-
↳
Tooltip
# Properties
# id
• id: string
# Inherited from
# Defined in
index.esm.d.ts:808 (opens new window)
# positioners
• Readonly positioners: TooltipPositionerMap
# Defined in
index.esm.d.ts:2549 (opens new window)
# Methods
# afterBuildTicks
▸ Optional afterBuildTicks(chart, args, options): void
desc Called after scale has build its ticks. This hook is called separately for each scale in the chart.
# Parameters
| Name | Type | Description |
|---|---|---|
chart | Chart<keyof ChartTypeRegistry, (number | ScatterDataPoint | BubbleDataPoint)[], unknown> | The chart instance. |
args | Object | The call arguments. |
args.scale | Scale<CoreScaleOptions> | The scale. |
options | AnyObject | The plugin options. |
# Returns
void
# Inherited from
# Defined in
index.esm.d.ts:967 (opens new window)
# afterDataLimits
▸ Optional afterDataLimits(chart, args, options): void
desc Called after scale data limits are calculated. This hook is called separately for each scale in the chart.
# Parameters
| Name | Type | Description |
|---|---|---|
chart | Chart<keyof ChartTypeRegistry, (number | ScatterDataPoint | BubbleDataPoint)[], unknown> | The chart instance. |
args | Object | The call arguments. |
args.scale | Scale<CoreScaleOptions> | The scale. |
options | AnyObject | The plugin options. |
# Returns
void
# Inherited from
# Defined in
index.esm.d.ts:951 (opens new window)
# afterDatasetDraw
▸ Optional afterDatasetDraw(chart, args, options): void
desc Called after the chart datasets at the given args.index have been drawn
(datasets are drawn in the reverse order). Note that this hook will not be called
if the datasets drawing has been previously cancelled.
# Parameters
| Name | Type | Description |
|---|---|---|
chart | Chart<keyof ChartTypeRegistry, (number | ScatterDataPoint | BubbleDataPoint)[], unknown> | The chart instance. |
args | Object | The call arguments. |
args.index | number | The dataset index. |
args.meta | ChartMeta<Element<AnyObject, AnyObject>, Element<AnyObject, AnyObject>, keyof ChartTypeRegistry> | The dataset metadata. |
options | AnyObject | The plugin options. |
# Returns
void
# Inherited from
# Defined in
index.esm.d.ts:1049 (opens new window)
# afterDatasetUpdate
▸ Optional afterDatasetUpdate(chart, args, options): void
desc Called after the chart datasets at the given args.index has been updated. Note
that this hook will not be called if the datasets update has been previously cancelled.
# Parameters
| Name | Type | Description |
|---|---|---|
chart | Chart<keyof ChartTypeRegistry, (number | ScatterDataPoint | BubbleDataPoint)[], unknown> | The chart instance. |
args | Object | The call arguments. |
args.cancelable | false | - |
args.index | number | The dataset index. |
args.meta | ChartMeta<Element<AnyObject, AnyObject>, Element<AnyObject, AnyObject>, keyof ChartTypeRegistry> | The dataset metadata. |
args.mode | "resize" | "reset" | "none" | "hide" | "show" | "normal" | "active" | The update mode. |
options | AnyObject | The plugin options. |
# Returns
void
# Inherited from
# Defined in
index.esm.d.ts:926 (opens new window)
# afterDatasetsDraw
▸ Optional afterDatasetsDraw(chart, args, options, cancelable): void
desc Called after the chart datasets have been drawn. Note that this hook
will not be called if the datasets drawing has been previously cancelled.
# Parameters
| Name | Type | Description |
|---|---|---|
chart | Chart<keyof ChartTypeRegistry, (number | ScatterDataPoint | BubbleDataPoint)[], unknown> | The chart instance. |
args | EmptyObject | The call arguments. |
options | AnyObject | The plugin options. |
cancelable | false | - |
# Returns
void
# Inherited from
# Defined in
index.esm.d.ts:1026 (opens new window)
# afterDatasetsUpdate
▸ Optional afterDatasetsUpdate(chart, args, options): void
desc Called after the chart datasets have been updated. Note that this hook
will not be called if the datasets update has been previously cancelled.
since version 2.1.5
# Parameters
| Name | Type | Description |
|---|---|---|
chart | Chart<keyof ChartTypeRegistry, (number | ScatterDataPoint | BubbleDataPoint)[], unknown> | The chart instance. |
args | Object | The call arguments. |
args.cancelable | true | - |
args.mode | "resize" | "reset" | "none" | "hide" | "show" | "normal" | "active" | The update mode. |
options | AnyObject | The plugin options. |
# Returns
void
# Inherited from
# Defined in
index.esm.d.ts:903 (opens new window)
# afterDestroy
▸ Optional afterDestroy(chart, args, options): void
Called after the chart has been destroyed.
# Parameters
| Name | Type | Description |
|---|---|---|
chart | Chart<keyof ChartTypeRegistry, (number | ScatterDataPoint | BubbleDataPoint)[], unknown> | The chart instance. |
args | EmptyObject | The call arguments. |
options | AnyObject | The plugin options. |
# Returns
void
# Inherited from
# Defined in
index.esm.d.ts:1102 (opens new window)
# afterDraw
▸ Optional afterDraw(chart, args, options): void
desc Called after the chart has been drawn. Note that this hook will not be called
if the drawing has been previously cancelled.
# Parameters
| Name | Type | Description |
|---|---|---|
chart | Chart<keyof ChartTypeRegistry, (number | ScatterDataPoint | BubbleDataPoint)[], unknown> | The chart instance. |
args | EmptyObject | The call arguments. |
options | AnyObject | The plugin options. |
# Returns
void
# Inherited from
# Defined in
index.esm.d.ts:1009 (opens new window)
# afterEvent
▸ Optional afterEvent(chart, args, options): void
desc Called after the event has been consumed. Note that this hook
will not be called if the event has been previously discarded.
# Parameters
| Name | Type | Description |
|---|---|---|
chart | Chart<keyof ChartTypeRegistry, (number | ScatterDataPoint | BubbleDataPoint)[], unknown> | The chart instance. |
args | Object | The call arguments. |
args.cancelable | false | - |
args.changed? | boolean | - |
args.event | ChartEvent | The event object. |
args.inChartArea | boolean | The event position is inside chartArea |
args.replay | boolean | True if this event is replayed from Chart.update |
options | AnyObject | The plugin options. |
# Returns
void
# Inherited from
# Defined in
index.esm.d.ts:1072 (opens new window)
# afterInit
▸ Optional afterInit(chart, args, options): void
desc Called after chart has been initialized and before the first update.
# Parameters
| Name | Type | Description |
|---|---|---|
chart | Chart<keyof ChartTypeRegistry, (number | ScatterDataPoint | BubbleDataPoint)[], unknown> | The chart instance. |
args | EmptyObject | The call arguments. |
options | AnyObject | The plugin options. |
# Returns
void
# Inherited from
# Defined in
index.esm.d.ts:847 (opens new window)
# afterLayout
▸ Optional afterLayout(chart, args, options): void
desc Called after the chart has been laid out. Note that this hook will not
be called if the layout update has been previously cancelled.
# Parameters
| Name | Type | Description |
|---|---|---|
chart | Chart<keyof ChartTypeRegistry, (number | ScatterDataPoint | BubbleDataPoint)[], unknown> | The chart instance. |
args | EmptyObject | The call arguments. |
options | AnyObject | The plugin options. |
# Returns
void
# Inherited from
# Defined in
index.esm.d.ts:975 (opens new window)
# afterRender
▸ Optional afterRender(chart, args, options): void
desc Called after the chart has been fully rendered (and animation completed). Note
that this hook will not be called if the rendering has been previously cancelled.
# Parameters
| Name | Type | Description |
|---|---|---|
chart | Chart<keyof ChartTypeRegistry, (number | ScatterDataPoint | BubbleDataPoint)[], unknown> | The chart instance. |
args | EmptyObject | The call arguments. |
options | AnyObject | The plugin options. |
# Returns
void
# Inherited from
# Defined in
index.esm.d.ts:992 (opens new window)
# afterTooltipDraw
▸ Optional afterTooltipDraw(chart, args, options): void
desc Called after drawing the tooltip. Note that this hook will not
be called if the tooltip drawing has been previously cancelled.
# Parameters
| Name | Type | Description |
|---|---|---|
chart | Chart<keyof ChartTypeRegistry, (number | ScatterDataPoint | BubbleDataPoint)[], unknown> | The chart instance. |
args | Object | The call arguments. |
args.tooltip | TooltipModel<keyof ChartTypeRegistry> | The tooltip. |
options | AnyObject | The plugin options. |
# Returns
void
# Inherited from
# Defined in
index.esm.d.ts:2601 (opens new window)
# afterUpdate
▸ Optional afterUpdate(chart, args, options): void
desc Called after chart has been updated and before rendering. Note that this
hook will not be called if the chart update has been previously cancelled.
# Parameters
| Name | Type | Description |
|---|---|---|
chart | Chart<keyof ChartTypeRegistry, (number | ScatterDataPoint | BubbleDataPoint)[], unknown> | The chart instance. |
args | Object | The call arguments. |
args.mode | "resize" | "reset" | "none" | "hide" | "show" | "normal" | "active" | The update mode |
options | AnyObject | The plugin options. |
# Returns
void
# Inherited from
# Defined in
index.esm.d.ts:866 (opens new window)
# beforeBuildTicks
▸ Optional beforeBuildTicks(chart, args, options): void
desc Called before scale builds its ticks. This hook is called separately for each scale in the chart.
# Parameters
| Name | Type | Description |
|---|---|---|
chart | Chart<keyof ChartTypeRegistry, (number | ScatterDataPoint | BubbleDataPoint)[], unknown> | The chart instance. |
args | Object | The call arguments. |
args.scale | Scale<CoreScaleOptions> | The scale. |
options | AnyObject | The plugin options. |
# Returns
void
# Inherited from
# Defined in
index.esm.d.ts:959 (opens new window)
# beforeDataLimits
▸ Optional beforeDataLimits(chart, args, options): void
desc Called before scale data limits are calculated. This hook is called separately for each scale in the chart.
# Parameters
| Name | Type | Description |
|---|---|---|
chart | Chart<keyof ChartTypeRegistry, (number | ScatterDataPoint | BubbleDataPoint)[], unknown> | The chart instance. |
args | Object | The call arguments. |
args.scale | Scale<CoreScaleOptions> | The scale. |
options | AnyObject | The plugin options. |
# Returns
void
# Inherited from
# Defined in
index.esm.d.ts:943 (opens new window)
# beforeDatasetDraw
▸ Optional beforeDatasetDraw(chart, args, options): boolean | void
desc Called before drawing the chart dataset at the given args.index (datasets
are drawn in the reverse order). If any plugin returns false, the datasets drawing
is cancelled until another render is triggered.
# Parameters
| Name | Type | Description |
|---|---|---|
chart | Chart<keyof ChartTypeRegistry, (number | ScatterDataPoint | BubbleDataPoint)[], unknown> | The chart instance. |
args | Object | The call arguments. |
args.index | number | The dataset index. |
args.meta | ChartMeta<Element<AnyObject, AnyObject>, Element<AnyObject, AnyObject>, keyof ChartTypeRegistry> | The dataset metadata. |
options | AnyObject | The plugin options. |
# Returns
boolean | void
false to cancel the chart datasets drawing.
# Inherited from
# Defined in
index.esm.d.ts:1038 (opens new window)
# beforeDatasetUpdate
▸ Optional beforeDatasetUpdate(chart, args, options): boolean | void
desc Called before updating the chart dataset at the given args.index. If any plugin
returns false, the datasets update is cancelled until another update is triggered.
# Parameters
| Name | Type | Description |
|---|---|---|
chart | Chart<keyof ChartTypeRegistry, (number | ScatterDataPoint | BubbleDataPoint)[], unknown> | The chart instance. |
args | Object | The call arguments. |
args.cancelable | true | - |
args.index | number | The dataset index. |
args.meta | ChartMeta<Element<AnyObject, AnyObject>, Element<AnyObject, AnyObject>, keyof ChartTypeRegistry> | The dataset metadata. |
args.mode | "resize" | "reset" | "none" | "hide" | "show" | "normal" | "active" | The update mode. |
options | AnyObject | The plugin options. |
# Returns
boolean | void
false to cancel the chart datasets drawing.
# Inherited from
# Defined in
index.esm.d.ts:915 (opens new window)
# beforeDatasetsDraw
▸ Optional beforeDatasetsDraw(chart, args, options): boolean | void
desc Called before drawing the chart datasets. If any plugin returns false,
the datasets drawing is cancelled until another render is triggered.
# Parameters
| Name | Type | Description |
|---|---|---|
chart | Chart<keyof ChartTypeRegistry, (number | ScatterDataPoint | BubbleDataPoint)[], unknown> | The chart instance. |
args | Object | The call arguments. |
args.cancelable | true | - |
options | AnyObject | The plugin options. |
# Returns
boolean | void
false to cancel the chart datasets drawing.
# Inherited from
# Defined in
index.esm.d.ts:1018 (opens new window)
# beforeDatasetsUpdate
▸ Optional beforeDatasetsUpdate(chart, args, options): boolean | void
desc Called before updating the chart datasets. If any plugin returns false,
the datasets update is cancelled until another update is triggered.
since version 2.1.5
# Parameters
| Name | Type | Description |
|---|---|---|
chart | Chart<keyof ChartTypeRegistry, (number | ScatterDataPoint | BubbleDataPoint)[], unknown> | The chart instance. |
args | Object | The call arguments. |
args.mode | "resize" | "reset" | "none" | "hide" | "show" | "normal" | "active" | The update mode. |
options | AnyObject | The plugin options. |
# Returns
boolean | void
false to cancel the datasets update.
# Inherited from
# Defined in
index.esm.d.ts:893 (opens new window)
# beforeDestroy
▸ Optional beforeDestroy(chart, args, options): void
Called before the chart is being destroyed.
# Parameters
| Name | Type | Description |
|---|---|---|
chart | Chart<keyof ChartTypeRegistry, (number | ScatterDataPoint | BubbleDataPoint)[], unknown> | The chart instance. |
args | EmptyObject | The call arguments. |
options | AnyObject | The plugin options. |
# Returns
void
# Inherited from
# Defined in
index.esm.d.ts:1087 (opens new window)
# beforeDraw
▸ Optional beforeDraw(chart, args, options): boolean | void
desc Called before drawing chart at every animation frame. If any plugin returns false,
the frame drawing is cancelled untilanother render is triggered.
# Parameters
| Name | Type | Description |
|---|---|---|
chart | Chart<keyof ChartTypeRegistry, (number | ScatterDataPoint | BubbleDataPoint)[], unknown> | The chart instance. |
args | Object | The call arguments. |
args.cancelable | true | - |
options | AnyObject | The plugin options. |
# Returns
boolean | void
false to cancel the chart drawing.
# Inherited from
# Defined in
index.esm.d.ts:1001 (opens new window)
# beforeElementsUpdate
▸ Optional beforeElementsUpdate(chart, args, options): void
desc Called during the update process, before any chart elements have been created.
This can be used for data decimation by changing the data array inside a dataset.
# Parameters
| Name | Type | Description |
|---|---|---|
chart | Chart<keyof ChartTypeRegistry, (number | ScatterDataPoint | BubbleDataPoint)[], unknown> | The chart instance. |
args | EmptyObject | The call arguments. |
options | AnyObject | The plugin options. |
# Returns
void
# Inherited from
# Defined in
index.esm.d.ts:874 (opens new window)
# beforeEvent
▸ Optional beforeEvent(chart, args, options): boolean | void
desc Called before processing the specified event. If any plugin returns false,
the event will be discarded.
# Parameters
| Name | Type | Description |
|---|---|---|
chart | Chart<keyof ChartTypeRegistry, (number | ScatterDataPoint | BubbleDataPoint)[], unknown> | The chart instance. |
args | Object | The call arguments. |
args.cancelable | true | - |
args.event | ChartEvent | The event object. |
args.inChartArea | boolean | The event position is inside chartArea |
args.replay | boolean | True if this event is replayed from Chart.update |
options | AnyObject | The plugin options. |
# Returns
boolean | void
# Inherited from
# Defined in
index.esm.d.ts:1060 (opens new window)
# beforeInit
▸ Optional beforeInit(chart, args, options): void
desc Called before initializing chart.
# Parameters
| Name | Type | Description |
|---|---|---|
chart | Chart<keyof ChartTypeRegistry, (number | ScatterDataPoint | BubbleDataPoint)[], unknown> | The chart instance. |
args | EmptyObject | The call arguments. |
options | AnyObject | The plugin options. |
# Returns
void
# Inherited from
# Defined in
index.esm.d.ts:840 (opens new window)
# beforeLayout
▸ Optional beforeLayout(chart, args, options): boolean | void
desc Called before laying out chart. If any plugin returns false,
the layout update is cancelled until another update is triggered.
# Parameters
| Name | Type | Description |
|---|---|---|
chart | Chart<keyof ChartTypeRegistry, (number | ScatterDataPoint | BubbleDataPoint)[], unknown> | The chart instance. |
args | Object | The call arguments. |
args.cancelable | true | - |
options | AnyObject | The plugin options. |
# Returns
boolean | void
false to cancel the chart layout.
# Inherited from
# Defined in
index.esm.d.ts:935 (opens new window)
# beforeRender
▸ Optional beforeRender(chart, args, options): boolean | void
desc Called before rendering chart. If any plugin returns false,
the rendering is cancelled until another render is triggered.
# Parameters
| Name | Type | Description |
|---|---|---|
chart | Chart<keyof ChartTypeRegistry, (number | ScatterDataPoint | BubbleDataPoint)[], unknown> | The chart instance. |
args | Object | The call arguments. |
args.cancelable | true | - |
options | AnyObject | The plugin options. |
# Returns
boolean | void
false to cancel the chart rendering.
# Inherited from
# Defined in
index.esm.d.ts:984 (opens new window)
# beforeTooltipDraw
▸ Optional beforeTooltipDraw(chart, args, options): boolean | void
desc Called before drawing the tooltip. If any plugin returns false,
the tooltip drawing is cancelled until another render is triggered.
# Parameters
| Name | Type | Description |
|---|---|---|
chart | Chart<keyof ChartTypeRegistry, (number | ScatterDataPoint | BubbleDataPoint)[], unknown> | The chart instance. |
args | Object | The call arguments. |
args.tooltip | TooltipModel<keyof ChartTypeRegistry> | The tooltip. |
options | AnyObject | The plugin options. |
# Returns
boolean | void
false to cancel the chart tooltip drawing.
# Inherited from
# Defined in
index.esm.d.ts:2592 (opens new window)
# beforeUpdate
▸ Optional beforeUpdate(chart, args, options): boolean | void
desc Called before updating chart. If any plugin returns false, the update
is cancelled (and thus subsequent render(s)) until another update is triggered.
# Parameters
| Name | Type | Description |
|---|---|---|
chart | Chart<keyof ChartTypeRegistry, (number | ScatterDataPoint | BubbleDataPoint)[], unknown> | The chart instance. |
args | Object | The call arguments. |
args.cancelable | true | - |
args.mode | "resize" | "reset" | "none" | "hide" | "show" | "normal" | "active" | The update mode |
options | AnyObject | The plugin options. |
# Returns
boolean | void
false to cancel the chart update.
# Inherited from
# Defined in
index.esm.d.ts:857 (opens new window)
# destroy
▸ Optional destroy(chart, args, options): void
Called after the chart has been destroyed.
deprecated since version 3.7.0 in favour of afterDestroy
# Parameters
| Name | Type | Description |
|---|---|---|
chart | Chart<keyof ChartTypeRegistry, (number | ScatterDataPoint | BubbleDataPoint)[], unknown> | The chart instance. |
args | EmptyObject | The call arguments. |
options | AnyObject | The plugin options. |
# Returns
void
# Inherited from
# Defined in
index.esm.d.ts:1095 (opens new window)
# install
▸ Optional install(chart, args, options): void
desc Called when plugin is installed for this chart instance. This hook is also invoked for disabled plugins (options === false).
since 3.0.0
# Parameters
| Name | Type | Description |
|---|---|---|
chart | Chart<keyof ChartTypeRegistry, (number | ScatterDataPoint | BubbleDataPoint)[], unknown> | The chart instance. |
args | EmptyObject | The call arguments. |
options | AnyObject | The plugin options. |
# Returns
void
# Inherited from
# Defined in
index.esm.d.ts:817 (opens new window)
# reset
▸ Optional reset(chart, args, options): void
desc Called during chart reset
since version 3.0.0
# Parameters
| Name | Type | Description |
|---|---|---|
chart | Chart<keyof ChartTypeRegistry, (number | ScatterDataPoint | BubbleDataPoint)[], unknown> | The chart instance. |
args | EmptyObject | The call arguments. |
options | AnyObject | The plugin options. |
# Returns
void
# Inherited from
# Defined in
index.esm.d.ts:882 (opens new window)
# resize
▸ Optional resize(chart, args, options): void
desc Called after the chart as been resized.
# Parameters
| Name | Type | Description |
|---|---|---|
chart | Chart<keyof ChartTypeRegistry, (number | ScatterDataPoint | BubbleDataPoint)[], unknown> | The chart instance. |
args | Object | The call arguments. |
args.size | Object | The new canvas display size (eq. canvas.style width & height). |
args.size.height | number | - |
args.size.width | number | - |
options | AnyObject | The plugin options. |
# Returns
void
# Inherited from
# Defined in
index.esm.d.ts:1080 (opens new window)
# start
▸ Optional start(chart, args, options): void
desc Called when a plugin is starting. This happens when chart is created or plugin is enabled.
since 3.0.0
# Parameters
| Name | Type | Description |
|---|---|---|
chart | Chart<keyof ChartTypeRegistry, (number | ScatterDataPoint | BubbleDataPoint)[], unknown> | The chart instance. |
args | EmptyObject | The call arguments. |
options | AnyObject | The plugin options. |
# Returns
void
# Inherited from
# Defined in
index.esm.d.ts:825 (opens new window)
# stop
▸ Optional stop(chart, args, options): void
desc Called when a plugin stopping. This happens when chart is destroyed or plugin is disabled.
since 3.0.0
# Parameters
| Name | Type | Description |
|---|---|---|
chart | Chart<keyof ChartTypeRegistry, (number | ScatterDataPoint | BubbleDataPoint)[], unknown> | The chart instance. |
args | EmptyObject | The call arguments. |
options | AnyObject | The plugin options. |
# Returns
void
# Inherited from
# Defined in
index.esm.d.ts:833 (opens new window)
# uninstall
▸ Optional uninstall(chart, args, options): void
Called after chart is destroyed on all plugins that were installed for that chart. This hook is also invoked for disabled plugins (options === false).
since 3.0.0
# Parameters
| Name | Type | Description |
|---|---|---|
chart | Chart<keyof ChartTypeRegistry, (number | ScatterDataPoint | BubbleDataPoint)[], unknown> | The chart instance. |
args | EmptyObject | The call arguments. |
options | AnyObject | The plugin options. |
# Returns
void