jabs-mimir 0.5.16

A reusable tkinter/ttkbootstrap UI framework

Jabs Mimir

Jabs Mimir is a lightweight, extensible UI micro-framework built on top of tkinter and ttkbootstrap, designed for rapid internal tool development and structured form workflows.

It provides:

• Reusable UI primitives with validation and tooltips
• Support for block-based form components with dynamic variable binding
• Integration with custom validation logic (via resolver, file loader, or direct function)
• Modular architecture suitable for internal tooling and small boilerplate projects

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Installation

pip install jabs-mimir

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Quick Start

from jabs_mimir import Mimir, DataBlockWrapper, UtilityModule
import tkinter as tk
import ttkbootstrap as tb

class App(tb.Window):
    def __init__(self):
        super().__init__(title="Mimir Demo")
        self.ui = Mimir(self)

        # Option 1: Inline validator resolver (string-based)
        self.ui.setValidatorResolver(lambda name: {
            "not_empty": lambda val: bool(str(val).strip())
        }.get(name))

        # Option 2 (alternative): load from file
        # self.ui.setValidatorFile("include/validator.py")

        self.ui.switchView(self.mainView)

    def mainView(self, ui, *args):
        frame = tb.Frame(self)
        fields = [
            {"type": "heading", "label": "Basic Info"},
            {"label": "Name", "key": "name", "variable": tk.StringVar(), "validation": "not_empty"},
            {"label": "Age", "key": "age", "variable": tk.IntVar()}
        ]

        meta = UtilityModule.buildBlockMeta(fields)
        block = DataBlockWrapper(meta)

        ui.renderFields(frame, fields)
        ui.addNextButton(frame, row=len(fields)+1, viewFunc=self.mainView)

        return frame

if __name__ == "__main__":
    app = App()
    app.mainloop()

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Validation

Jabs Mimir supports both automatic and manual validation, triggered on field focus-out and verified again when clicking "Next".

You can define validation in two ways:

1. String-based validation (via file or resolver)

Define a validator in a file:

# include/validator.py
def not_empty(value):
    return bool(str(value).strip())

Load it:

self.ui.setValidatorFile("include/validator.py")

Use string key in field:

{"label": "Name", "variable": tk.StringVar(), "validation": "not_empty"}

2. Direct function reference

from include.validator import not_empty

fields = [
    {"label": "Name", "variable": tk.StringVar(), "validation": not_empty}
]

Both methods are fully supported and interchangeable.

Mimir automatically:

• Binds validation on focus-out
• Stores all validators internally
• Re-validates all fields when clicking "Next"
• Blocks navigation if any invalid inputs remain
• Highlights invalid fields with red styling

Works even for readonly fields (like file upload paths), which normally can't be focused.

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Buttons & Navigation

Mimir provides helpers for both view transitions and general-purpose action buttons.

addNextButton(...)

Use this when you want a button that:

• Runs validation on all fields
• Automatically switches to a new view
• Looks like a "next step" button

self.ui.addNextButton(parent, row=5, viewFunc=initERPInput, label="Next")

addButton(...)

Use this when you want full control over what happens on click.

• Can be used with or without validation (validate=True or False)
• Perfect for "Save", "Preview", or conditional logic buttons

self.ui.addButton(parent, row=6, command=self.doSomething, label="Save", validate=True)

If you just want to go to the next frame with validation, use addNextButton. If you want to run custom logic (e.g. saving data, previewing content, or optionally switching views), use addButton instead.

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Working with Blocks

Mimir makes it easy to group inputs into reusable, structured blocks of fields (also called Data Blocks). These blocks:

• Are defined using a list of field dictionaries
• Can be rendered vertically or horizontally
• Are assigned metadata for identification (store_id, custom_label, etc.)
• Can be validated, modified, and repeated dynamically
• Wrap all data in a DataBlockWrapper

Creating a Field Block

fields = [
    {"type": "heading", "label": "Store 1"},
    {"label": "Cash", "key": "cash", "variable": tk.DoubleVar()},
    {"label": "Card", "key": "card", "variable": tk.DoubleVar()}
]

meta = UtilityModule.buildBlockMeta(fields, store_id=1)
block = DataBlockWrapper(meta)

Rendering a Block in the UI

self.blocks = []

self.ui.renderBlockUI(
    container=frame,
    fields=fields,
    blockList=self.blocks,
    layout="vertical",
    label="Store 1",
    meta={"store_id": 1}
)

This will create a labeled block frame (with remove button), populate it with your fields, and store the block object in self.blocks.

Accessing Block Data

You can easily access or print values from any block:

for block in self.blocks:
    print("Cash:", block.get("cash").get())
    print("Card:", block.get("card").get())

You can also loop through and validate them with:

valid_blocks = [b for b in self.blocks if UtilityModule.isBlockValid(b)]

Repeating Dynamic Blocks

Use renderBlockUI() repeatedly to dynamically add multiple blocks (e.g., one per store or user):

for i in range(5):
    self.ui.renderBlockUI(
        container=frame,
        fields=fields,
        blockList=self.blocks,
        label=f"Store {i+1}",
        meta={"store_id": i+1}
    )

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Components

Mimir

Manages UI views, tooltips, validation, field rendering, and form logic. Supports reusable custom field types via registerFieldType().

DataBlockWrapper

A wrapper for block-level form metadata and values. Supports dot-access and .get()/.set() calls.

UtilityModule

Helper methods for building field metadata, extracting values, validating blocks, and block meta handling.

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License

MIT License © 2025 William Lydahl