fix(interactions): line cursor above the chart, band cursor below#1453
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nickofthyme merged 4 commits intoelastic:masterfrom Nov 2, 2021
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fix(interactions): line cursor above the chart, band cursor below#1453nickofthyme merged 4 commits intoelastic:masterfrom
nickofthyme merged 4 commits intoelastic:masterfrom
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## [38.0.2](v38.0.1...v38.0.2) (2021-11-02) ### Bug Fixes * **interactions:** line cursor above the chart, band cursor below ([#1453](#1453)) ([#1457](#1457)) ([ca004a6](ca004a6)) * **theme:** merge partial with empty initial partial ([#1452](#1452)) ([#1454](#1454)) ([2eadc71](2eadc71)) * **xy:** show mouse cursors on charts with opaque background ([#1447](#1447)) ([#1455](#1455)) ([b416ed5](b416ed5))
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🎉 This PR is included in version 38.1.4 🎉 The release is available on: Your semantic-release bot 📦🚀 |
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Summary
The effort to fix the visibility of mouse cursors above or below the chart, started in #1447, is now completed thanks to this PR.
I've splitter the crosshair component into two components: one for the mouse cursor line (that needs to be shown above every element on the chart), and the cursor band, which needs to be shown below the chart geometries.
The crossline (the horizontal line) is also extracted and rendered separately above the chart.
related to elastic/kibana#116754
Details
The current implementation uses the calculated
zIndexto position the Crosshair component above the chart if we are rendering a line, or below if we are rendering a band.Due to some changes in the Kibana instance and a possible bug in the calculation of the chart
zIndexthe Crosshair component is always rendered in Kibana with azIndexof 0, causing it to be rendered always below the chart.A first fix went in thanks to #1447, which removes the background color applied to the
canvaselement making the cursor visible, but the problem is that the visibility is obfuscated by the gridlines.This PR fixes it removing the need of using a
zIndexto position the cursor above or below the chartIssues
fix #1283
Checklist
:xy,:partition):interactions,:axis)dark,light,eui-dark&eui-light