tysonwu/dash-tradingview

How to subscribe lightweight chart events?

Opened this issue · 4 comments

aliveoceans commented

How to subscribe lightweight chart events?

tysonwu commented

Hi @aliveoceans , this repo got recently updated.
The original Tradingview lightweight chart library supports subscribing mouse even (hover on chart coordinates, mouse clicks) - they are now supported in this Dash component in the form of a prop. You can get the mouse events from the crosshair and click properties. Hope it helps.

aliveoceans commented

Hi @aliveoceans , this repo got recently updated. The original Tradingview lightweight chart library supports subscribing mouse even (hover on chart coordinates, mouse clicks) - they are now supported in this Dash component in the form of a prop. You can get the mouse events from the crosshair and click properties. Hope it helps.

Hi @tysonwu ,
Thanks for your efforts and quick response. I am able to access the click event as expected. Is there a way to implement crosshair synchronization between multiple charts like this https://jsfiddle.net/trior/y1vcxtqw/ ?

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tysonwu commented

Hi @aliveoceans,
Thanks for trying out the component.
I briefly looked at the jsfiddle you provided. The syncronization is driven by chart.setCrossHairXY() which does not exist in the original charting library. I believe it is only achievable by modifying the original charting library in js (see this discussion).

s71m commented

Hi @tysonwu!
Thanks for your work.

Syncronization between multiple charts added to original library - https://tradingview.github.io/lightweight-charts/tutorials/how_to/set-crosshair-position#syncing-two-charts.
Would you mind add this feature to your implementation?