slint-ui/slint

Allow modifying operation on Model (e.g. push, insert, remove)

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#9412 opened on Sep 14, 2025

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 (3 comments) (3 reactions) (0 assignees)Rust (22,596 stars) (881 forks)batch import
a:language-slintgood first issue

Description

It would be useful to support methods like push, insert, and remove on models directly in .slint code, as well as for slint::Model

(Maybe using += to push.)

Original Description

Slint Vector type or modifyable Model within Slint**

Model has no way of appending or popping from within Slint. It would be good to have a Vector type that can do this.

Contributor guide

Tech stack
rust
Domain
frontenddeveloper experience
Issue type
feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
3-5 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
mostly clear
Prerequisites
Familiarity with RustUnderstanding of Slint's Model trait
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
50
Research direction
Review the Model trait definition in the Slint source code (likely in internal/core/model.rs or similar). Examine how existing methods like set row data are implemented. Investigate how to add push, insert, and remove methods to the Model trait and ensure they work across the Rust, C++, JavaScript, and Python bindings. Also consider the syntax proposal (e.g., `+=` for push) and discuss in the issue comments.