List Inventory Item directly on CSFloat

[GODrums]

Motivation

We want to make it as easy as possible for users to list their items on CSFloat. Currently, we already added a "List on CSFloat"-button, which redirects to the selling-page on CSFloat. This could further be enhanced by providing the capabilities to sell an item while staying in your Steam inventory.

Description

Instead of linking to CSFloat's selling-page, the "List on CSFloat"-button should now open a modal / popover:

• Make sure user is actively logged-in to CSFloat beforehand
• Show some sort of recommended price, such as the FloatAppraiser price, to help the user make an informed decision
• Provide the ability to enter a custom price as well as a percentage-slider based upon the recommended price

Possible follow-ups:

• Similar popover to also manage existing listings: edit price & unlist item
• Integrate possible other stats, similar to the popups on CSFloat's selling page, such as a price history graph