1. A simple <button />
It’s a composable UI component
<button onClick={callMeOnClick}>Click Me!</button>

2. Composition, Good old days
<button class=”btn btn--tarmac btn--large”>
Click Me!
</button>

3. <Button />
An enhanced <button /> component
<Button text="Click Me!" color="tarmac" />
◉ Uses the <button /> under the hood
◉ Enhances the <button /> via “color” field

4. <Button /> with icon
<Button /> version 1.1
<Button color="yellow" icon="edit" text="Edit" />
◉ Uses the <Icon /> under the hood
◉ Configure the icon via “icon” field

5. <Button /> with colored icon
<Button /> version 1.2
<Button color="yellow" icon="edit"
iconColor="black" text="Edit" />
◉ Icon color via the “iconColor” field

6. That’s Exactly What
We Should Not Do
!

7. Why not to do?
◉ Lack of composition via consumer developer
◉ Lack of separation of concerns
◉ Code duplication
◉ Maintenance overhead
◉ Test overhead

8. What I Talk About
When I Talk About Composition

9. I am Mehdi
Software Engineer at Autopilot
@mehdivk
hi@mv.id.au
Hello!

10. “
Front-end development at Autopilot is the
process of building sophisticated user
interfaces consisting of thousands of
small, focused, testable and composable
components.

11. <Button />, revised
To compose <Icon />
<Button>
<Icon size="small" color="black" symbol="edit" />
Edit
</Button>

12. What composition actually offers?
◉ Maximum flexibility
◉ Minimum coupling
◉ Maintainable components
◉ Testable components

13. Showcase Time

14. <Modal />

15. <Modal />
<Modal size={modalSize} type={modalType}>
<ModalHeader></ModalHeader>
<ModalContent></ModalContent>
<ModalFooter></ModalFooter>
<ModalClose></ModalClose>
</Modal>

16. <Modal />
Overlays the other elements on page

17. <Modal />
<Position xAxis="center" yAxis="center">
<Overlay>
<Modal>
<ModalHeader />
<ModalContent />
<ModalFooter />
</Modal>
</Overlay>
</Position>
Overlays the other elements on page

18. <FolderExplorer />

19. <FolderExplorer />
<Position anchor="someElement">
<FolderExplorer />
</Position>

20. <ContextMenu />

21. <ContextMenu />
<Position anchor="someElement">
<DropDownMenu>
<DropDownMenuOption icon="edit" onClick={onEditClick}>Edit</DropDownMenuOption>
<DropDownMenuOption icon="trash" onClick={onTrash}>Trash</DropDownMenuOption>
<DropDownMenuOption icon="folder" disabled>Move to folder</DropDownMenuOption>
</DropDownMenu>
</Position>

22. <ContextMenu />

23. Forms

24. Forms
<Form labelOn="top" size="large" ref={this.setFormReference}>
<Element id="goalName">
<Label text="Goal name" />
<TextBox placeholder="Type what people become who complete the goal, e.g. customer" />
<Validator>
<Required />
</Validator>
</Element>
<Elements>
<Label text="Conversion target" />
<Element id="conversionTarget" className="goal-form__conversion-target">
<TextBox placeholder="10" />
<Validator>
<Required />
{ this.state.conversionType ? <ValidConversionTarget type={this.state.conversionType} /> : null }
</Validator>
</Element>
<Element id="conversionTargetType">
<ComboBox placeholder="Please select" options={conversionTargetTypes} onChange={this.onConversionTypeChange} />
<Validator>
<Required />
</Validator>
</Element>
</Elements>
</Form>

25. Forms
<Form labelOn="top" size="large" ref={this.setFormReference}>
<Element id="goalName">
<Label text="Goal name" />
<TextBox placeholder="Type what people become who complete the goal, e.g. customer" />
<Validator>
<Required />
</Validator>
</Element>
<Elements>
<Label text="Conversion target" />
<Element id="conversionTarget" className="goal-form__conversion-target">
<TextBox placeholder="10" />
<Validator>
<Required />
{ this.state.conversionType ? <ValidConversionTarget type={this.state.conversionType} /> : null }
</Validator>
</Element>
<Element id="conversionTargetType">
<ComboBox placeholder="Please select" options={conversionTargetTypes} onChange={this.onConversionTypeChange} />
<Validator>
<Required />
</Validator>
</Element>
</Elements>
</Form>

26. Forms
<Form labelOn="top" size="large" ref={this.setFormReference}>
<Element id="goalName">
<Label text="Goal name" />
<TextBox placeholder="Type what people become who complete the goal, e.g. customer" />
<Validator>
<Required />
</Validator>
</Element>
<Elements>
<Label text="Conversion target" />
<Element id="conversionTarget" className="goal-form__conversion-target">
<TextBox placeholder="10" />
<Validator>
<Required />
{ this.state.conversionType ? <ValidConversionTarget type={this.state.conversionType} /> : null }
</Validator>
</Element>
<Element id="conversionTargetType">
<ComboBox placeholder="Please select" options={conversionTargetTypes} onChange={this.onConversionTypeChange} />
<Validator>
<Required />
</Validator>
</Element>
</Elements>
</Form>

27. Forms
<Form labelOn="top" size="large" ref={this.setFormReference}>
<Element id="goalName">
<Label text="Goal name" />
<TextBox placeholder="Type what people become who complete the goal, e.g. customer" />
<Validator>
<Required />
</Validator>
</Element>
<Elements>
<Label text="Conversion target" />
<Element id="conversionTarget" className="goal-form__conversion-target">
<TextBox placeholder="10" />
<Validator>
<Required />
{ this.state.conversionType ? <ValidConversionTarget type={this.state.conversionType} /> : null }
</Validator>
</Element>
<Element id="conversionTargetType">
<ComboBox placeholder="Please select" options={conversionTargetTypes} onChange={this.onConversionTypeChange} />
<Validator>
<Required />
</Validator>
</Element>
</Elements>
</Form>

28. Forms
<Form labelOn="top" size="large" ref={this.setFormReference}>
<Element id="goalName">
<Label text="Goal name" />
<TextBox placeholder="Type what people become who complete the goal, e.g. customer" />
<Validator>
<Required />
</Validator>
</Element>
<Elements>
<Label text="Conversion target" />
<Element id="conversionTarget" className="goal-form__conversion-target">
<TextBox placeholder="10" />
<Validator>
<Required />
{ this.state.conversionType ? <ValidConversionTarget type={this.state.conversionType} /> : null }
</Validator>
</Element>
<Element id="conversionTargetType">
<ComboBox placeholder="Please select" options={conversionTargetTypes} onChange={this.onConversionTypeChange} />
<Validator>
<Required />
</Validator>
</Element>
</Elements>
</Form>

29. Forms
this.goalForm.validate();
this.goalForm.isValid();
this.goalForm.value();
this.goalForm.value('conversionTarget');

30. Forms

31. <Table />

32. <Table />
<Table dataSource={this.props.assets} className="asset-manager__table">
<TableCell header="Status">
<TableRowStatus field="status" valueToColorMap={valueToColorMap} />
</TableCell>
<TableCell header="Name">
<TableCellValue field="name" />
</TableCell>
<TableCell header="In Journeys">
<TableCellValue field="inJourneys" />
</TableCell>
<TableCell header="Type">
<TableCellValue format="camel-case" field="type" />
</TableCell>
<TableCell header="Created By">
<TableCellValue field="createdBy" />
</TableCell>
<TableCell header="Edited">
<TableCellValue format="date" field="edited" />
</TableCell>
<TableCell header="Published">
<TableCellValue format="date" field="published" />
</TableCell>
</Table>

33. Any questions ?
You can find me at
◉ @mehdivk
◉ hi@mv.id.au
Thanks!