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Adding hooks "beforeTooltipDraw" and "afterTooltipDraw" to plugins #4793

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merged 9 commits into from Oct 14, 2017
Merged

Adding hooks "beforeTooltipDraw" and "afterTooltipDraw" to plugins #4793

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8343e6a
Adding hook "beforeTooltips" to call plugins.notify immediately befor…
Sep 25, 2017
eaa1967
fixing tabs/spaces issues
Sep 25, 2017
af9c0ad
Changing "beforeTooltips" to "beforeTooltipDraw" per @simonbrunel: "t…
JewelsJLF Oct 1, 2017
60e9f5d
Merge branch 'master' of https://github.com/chartjs/Chart.js into bef…
JewelsJLF Oct 1, 2017
82d981e
Making hook consistent with *DatasetDraw by adding function "drawTool…
JewelsJLF Oct 14, 2017
3455ccf
Fixing spaces/tabs issue.
JewelsJLF Oct 14, 2017
c2d99ab
changing drawTooltip to _drawTooltip
JewelsJLF Oct 14, 2017
221f484
moving options after arg.easingValue
JewelsJLF Oct 14, 2017
adbe040
updating unit tests
JewelsJLF Oct 14, 2017
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3 changes: 3 additions & 0 deletions src/core/core.controller.js
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Expand Up @@ -529,6 +529,9 @@ module.exports = function(Chart) {

me.drawDatasets(easingValue);

// notify before drawing tooltips
plugins.notify(me, 'beforeTooltips', [easingValue]);
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Wouldn't beforeTooltipDraw be more explicit and thus durable (e.g. if we decide to add beforeTooltipUpdate or whatever related to the tooltip)? Also, since there is only one managed tooltip, not sure it should be plural.

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Good point. I'd agree with this change

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Sounds good, I'll update it.


// Finally draw the tooltip
me.tooltip.draw();

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10 changes: 10 additions & 0 deletions src/core/core.plugin.js
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Expand Up @@ -273,6 +273,16 @@ module.exports = function(Chart) {
* @param {Object} options - The plugin options.
* @returns {Boolean} `false` to cancel the chart drawing.
*/
/**
* @method IPlugin#beforeTooltips
* @desc Called before drawing `tooltips` at every animation frame specified by the given
* easing value. If any plugin returns `false`, the frame drawing is cancelled until
* another `render` is triggered.
* @param {Chart.Controller} chart - The chart instance.
* @param {Number} easingValue - The current animation value, between 0.0 and 1.0.
* @param {Object} options - The plugin options.
* @returns {Boolean} `false` to cancel the chart drawing.
*/
/**
* @method IPlugin#afterDraw
* @desc Called after the `chart` has been drawn for the specific easing value. Note
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