Metadata-Version: 2.3
Name: flet-model
Version: 0.1.4
Summary: A Model-based router for Flet applications that simplifies the creation of multi-page applications
Project-URL: Homepage, https://github.com/fasilwdr/Flet-Model
Project-URL: Documentation, https://github.com/fasilwdr/Flet-Model#readme
Project-URL: Repository, https://github.com/fasilwdr/Flet-Model.git
Project-URL: Issues, https://github.com/fasilwdr/Flet-Model/issues
Project-URL: Changelog, https://github.com/fasilwdr/Flet-Model/releases
Author-email: Fasil <fasilwdr@hotmail.com>
License: MIT License
        
        Copyright (c) 2024 Fasil
        
        Permission is hereby granted, free of charge, to any person obtaining a copy
        of this software and associated documentation files (the "Software"), to deal
        in the Software without restriction, including without limitation the rights
        to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
        copies of the Software, and to permit persons to whom the Software is
        furnished to do so, subject to the following conditions:
        
        The above copyright notice and this permission notice shall be included in all
        copies or substantial portions of the Software.
        
        THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
        IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
        FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
        AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
        LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
        OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
        SOFTWARE.
Keywords: flet,framework,gui,model,mvc,navigation,router,ui
Classifier: Development Status :: 3 - Alpha
Classifier: Intended Audience :: Developers
Classifier: License :: OSI Approved :: MIT License
Classifier: Operating System :: OS Independent
Classifier: Programming Language :: Python
Classifier: Programming Language :: Python :: 3
Classifier: Programming Language :: Python :: 3.7
Classifier: Programming Language :: Python :: 3.8
Classifier: Programming Language :: Python :: 3.9
Classifier: Programming Language :: Python :: 3.10
Classifier: Programming Language :: Python :: 3.11
Classifier: Topic :: Software Development :: Libraries :: Python Modules
Classifier: Topic :: Software Development :: User Interfaces
Requires-Python: >=3.7
Requires-Dist: flet>=0.10.0
Provides-Extra: dev
Requires-Dist: black; extra == 'dev'
Requires-Dist: build; extra == 'dev'
Requires-Dist: flake8; extra == 'dev'
Requires-Dist: isort; extra == 'dev'
Requires-Dist: mypy; extra == 'dev'
Requires-Dist: pytest-cov; extra == 'dev'
Requires-Dist: pytest>=7.0.0; extra == 'dev'
Requires-Dist: sphinx; extra == 'dev'
Requires-Dist: sphinx-rtd-theme; extra == 'dev'
Requires-Dist: twine; extra == 'dev'
Description-Content-Type: text/markdown

# Flet Model

A Model-based router for Flet applications that simplifies the creation of multi-page applications with built-in state management and navigation.

## Installation

```bash
pip install flet-model
```

## Core Features

- Model-based view architecture
- Automatic route handling and nested routes
- Event binding with caching for improved performance
- Built-in view state management
- Navigation handling (drawers, bottom bar, FAB)
- Thread-safe initialization hooks
- Support for keyboard and scroll events
- View caching system

## Basic Usage

```python
import flet as ft
from flet_model import Model, Router


class HomeModel(Model):
    route = 'home'

    # Layout configuration
    vertical_alignment = ft.MainAxisAlignment.CENTER
    horizontal_alignment = ft.CrossAxisAlignment.CENTER
    padding = 20
    spacing = 10

    # UI Components
    appbar = ft.AppBar(
        title=ft.Text("Home"),
        center_title=True,
        bgcolor=ft.Colors.SURFACE_CONTAINER_HIGHEST
    )

    controls = [
        ft.Text("Welcome to Home Page", size=24),
        ft.ElevatedButton("Go to Profile", on_click="navigate_to_profile")
    ]

    def navigate_to_profile(self, e):
        self.page.go('/home/profile')


class ProfileModel(Model):
    route = 'profile'

    # Layout configuration
    vertical_alignment = ft.MainAxisAlignment.CENTER
    horizontal_alignment = ft.CrossAxisAlignment.CENTER
    padding = 20
    spacing = 10

    # UI Components
    appbar = ft.AppBar(
        title=ft.Text("Profile"),
        center_title=True,
        bgcolor=ft.Colors.SURFACE_CONTAINER_HIGHEST
    )

    controls = [
        ft.Text("Welcome to Profile Page", size=24),
    ]


def main(page: ft.Page):
    page.title = "Flet Model Demo"
    Router(
        {'home': HomeModel(page)},
        {'profile': ProfileModel(page)},
    )
    page.go(page.route)


ft.app(target=main)
```

## Advanced Features

### 1. Route Data Passing

```python
# Navigate with data
self.page.go('/products#id=123&category=electronics')

class ProductModel(Model):
    def init(self):
        # Access route data
        product_id = self.route_data.get('id')
        category = self.route_data.get('category')
```

### 2. Navigation Drawers

```python
class DrawerModel(Model):
    drawer = ft.NavigationDrawer(
        controls=[
            ft.NavigationDrawerDestination(
                icon=ft.Icons.HOME,
                label="Home",
                selected_icon=ft.Icons.HOME_OUTLINED
            )
        ]
    )

    end_drawer = ft.NavigationDrawer(
        controls=[
            ft.NavigationDrawerDestination(
                icon=ft.Icons.SETTINGS,
                label="Settings"
            )
        ]
    )

    controls = [
        ft.ElevatedButton('Open Drawer', on_click=lambda e: e.control.page.open(e.control.data), data=drawer),
        ft.ElevatedButton('Open End Drawer', on_click=lambda e: e.control.page.open(e.control.data), data=end_drawer)
    ]
```

### 3. Event Handlers and Lifecycle Hooks

```python
class EventModel(Model):
    def init(self):
        # Called before view creation
        self.load_data()
    
    def post_init(self):
        # Called after view creation
        self.setup_listeners()
    
    def on_keyboard_event(self, e: ft.KeyboardEvent):
        if e.key == "Enter":
            self.handle_enter()
    
    def on_scroll(self, e: ft.OnScrollEvent):
        if e.pixels >= e.max_scroll_extent - 100:
            self.load_more_data()
```

### 4. Floating Action Button

```python
class FABModel(Model):
    floating_action_button = ft.FloatingActionButton(
        icon=ft.Icons.ADD,
        on_click="add_item"
    )
    floating_action_button_location = ft.FloatingActionButtonLocation.END_DOCKED
```

### 5. Bottom Navigation

```python
class NavigationModel(Model):
    navigation_bar = ft.NavigationBar(
        destinations=[
            ft.NavigationDestination(icon=ft.Icons.HOME, label="Home"),
            ft.NavigationDestination(icon=ft.Icons.PERSON, label="Profile")
        ],
        on_change="handle_navigation"
    )
```

### 6. Overlay Controls

```python
class OverlayModel(Model):
    overlay_controls = [
        ft.Banner(
            open=True,
            content=ft.Text("Important message!"),
            actions=[
                ft.TextButton("Dismiss", on_click="dismiss_banner")
            ]
        )
    ]

    def dismiss_banner(self, e):
        self.page.close(e.control.parent)
```

### 7. Fullscreen Dialogs

```python
class DialogModel(Model):
    route = "dialog"
    fullscreen_dialog = True

    controls = [
        ft.Text("Dialog Content"),
        ft.ElevatedButton("Close", on_click="close_dialog")
    ]

    def close_dialog(self, e):
        self.page.views.pop()
        self.page.go(self.page.views[-1].route)
```

## Real-world Example

Here's a complete example of a todo application using Flet Model:

```python
import flet as ft
from flet_model import Model, Router
from typing import List


class TodoItem:
    def __init__(self, title: str, completed: bool = False):
        self.title = title
        self.completed = completed


class TodoModel(Model):
    route = "todo"
    todos: List[TodoItem] = []

    appbar = ft.AppBar(
        title=ft.Text("Todo List"),
        center_title=True
    )

    def get_controls(self):
        return [
            ft.TextField(
                hint_text="Add new todo",
                on_submit="add_todo",
                autofocus=True
            ),
            ft.Column(controls=self.get_todo_control())
        ]

    def get_todo_control(self):
        return [
            ft.Checkbox(
                label=todo.title,
                value=todo.completed,
                on_change=lambda e, t=todo: self.toggle_todo(e, t)
            ) for todo in self.todos
        ]

    controls = [
            ft.TextField(
                hint_text="Add new todo",
                on_submit="add_todo",
                autofocus=True
            ),
            ft.Column()
        ]

    def add_todo(self, e):
        if e.control.value:
            self.todos.append(TodoItem(e.control.value))
            e.control.value = ""
            self.controls[-1].controls = self.get_todo_control()
            self.update()
            e.control.focus()

    def toggle_todo(self, e, todo):
        todo.completed = e.control.value
        self.update()


def main(page: ft.Page):
    Router(
        {'todo': TodoModel(page)}
    )
    page.go('todo')


ft.app(target=main)
```

## Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

## License

This project is licensed under the MIT License.