[AAE-3493] Update the documentation to provide the proper guidance on custom forms widgets for APA and APS developers (#6158)

* * improve docs

* * assets fixed

* * links fixed

* * versions fixed

* * assets added

* * fix links

* Update docs/user-guide/aae-extensions.md

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* Update docs/user-guide/aae-extensions.md

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* Update docs/user-guide/aae-extensions.md

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* Update docs/user-guide/aae-extensions.md

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* Update docs/user-guide/aae-extensions.md

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* Update docs/user-guide/aae-extensions.md

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* Update docs/user-guide/aae-extensions.md

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* Update docs/user-guide/aae-extensions.md

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* Update docs/user-guide/aae-extensions.md

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* Update docs/user-guide/aae-extensions.md

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* Update docs/user-guide/aae-extensions.md

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* Update docs/user-guide/aae-extensions.md

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* Apply suggestions from code review

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* * example fixed

* * minor changes

* Make stencils document step-based

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Co-authored-by: Mark Hulbert <mark.hulbert@alfresco.com>
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2020-09-25 17:12:37 +05:30
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@@ -18,10 +18,7 @@ _Note: it is assumed you are familiar with Alfresco Process Services (powered by
- [How components and widgets are rendered on a Form](#how-components-and-widgets-are-rendered-on-a-form)
- [Component type resolvers](#component-type-resolvers)
- [Default component mappings](#default-component-mappings)
- [Replacing default form widgets with custom components](#replacing-default-form-widgets-with-custom-components)
- [Replacing custom stencils with custom components](#replacing-custom-stencils-with-custom-components)
- [Creating custom stencil](#creating-custom-stencil)
- [Creating custom widget](#creating-custom-widget)
- [Form Extensibility for APS/AAE](#form-extensibility-for-apsaae)
- [See Also](#see-also)
## How components and widgets are rendered on a Form
@@ -102,173 +99,9 @@ formRenderingService.setComponentTypeResolver('text', customResolver, true);
| Attach | upload | AttachWidgetComponent or [`UploadWidgetComponent`](../../lib/core/form/components/widgets/upload/upload.widget.ts) (based on metadata) |
| N/A | N/A | [`UnknownWidgetComponent`](../../lib/core/form/components/widgets/unknown/unknown.widget.ts) |
## Replacing default form widgets with custom components
This is a short walkthrough on replacing a standard `Text` [widget](../../lib/testing/src/lib/core/pages/form/widgets/widget.ts) with a custom component for all APS forms
rendered within `<adf-form>` component.
First let's create a simple APS form with `Text` widgets:
![default text widget](../docassets/images/text-default-widget.png)
Every custom [widget](../../lib/testing/src/lib/core/pages/form/widgets/widget.ts) must inherit [`WidgetComponent`](../insights/components/widget.component.md) class in order to function properly:
```ts
import { Component } from '@angular/core';
import { WidgetComponent } from '@alfresco/adf-core';
@Component({
selector: 'custom-editor',
template: `
<div style="color: red">Look, I'm a custom editor!</div>
`
})
export class CustomEditorComponent extends WidgetComponent {}
```
Now you will need to add it to the application module or any custom module that is imported into the application one:
```ts
import { NgModule } from '@angular/core';
import { CustomEditorComponent } from './custom-editor.component';
@NgModule({
declarations: [ CustomEditorComponent ],
exports: [ CustomEditorComponent ]
})
export class CustomEditorsModule {}
```
Every custom [widget](../../lib/testing/src/lib/core/pages/form/widgets/widget.ts) should be added into the following collections: `declarations`, `exports`.
If you decided to store custom widgets in a separate dedicated module (and optionally as separate redistributable library)
don't forget to import it into your main application one:
```ts
@NgModule({
imports: [
// ...
CustomEditorsModule
// ...
],
providers: [],
bootstrap: [ AppComponent ]
})
export class AppModule {}
```
Now you can import [`FormRenderingService`](../core/services/form-rendering.service.md) in any of your Views and override default mapping similar to the following:
```ts
import { Component } from '@angular/core';
import { CustomEditorComponent } from './custom-editor.component';
@Component({...})
export class MyView {
constructor(formRenderingService: FormRenderingService) {
formRenderingService.setComponentTypeResolver('text', () => CustomEditorComponent, true);
}
}
```
At runtime it should look similar to the following:
![custom text widget](../docassets/images/text-custom-widget.png)
## Replacing custom stencils with custom components
This is a short walkthrough on rendering custom APS stencils by means of custom Angular components.
### Creating custom stencil
First let's create a basic stencil and call it `Custom Stencil 01`:
![custom stencil](../docassets/images/activiti-stencil-01.png)
_Note the `internal identifier` value as it will become a `field type` value when corresponding form is rendered._
Next put some simple html layout for [`Form`](../../lib/process-services/src/lib/task-list/models/form.model.ts)`runtime template` and [`Form`](../../lib/process-services/src/lib/task-list/models/form.model.ts)`editor template` fields:
```html
<div style="color: blue">Custom activiti stencil</div>
```
Now you are ready to design a test form based on your custom stencil:
![custom stencil form](../docassets/images/activiti-stencil-02.png)
Once wired with a new task it should look like the following within APS web application:
![custom stencil task](../docassets/images/activiti-stencil-03.png)
### Creating custom widget
If you load previously created task into ADF `<adf-form>` component you will see something like the following:
![adf stencil](../docassets/images/adf-stencil-01.png)
Let's create an Angular component to render missing content:
```ts
import { Component } from '@angular/core';
import { WidgetComponent } from '@alfresco/adf-core';
@Component({
selector: 'custom-stencil-01',
template: `<div style="color: green">ADF version of custom Activiti stencil</div>`
})
export class CustomStencil01 extends WidgetComponent {}
```
Put it inside custom module:
```ts
import { NgModule } from '@angular/core';
import { CustomStencil01 } from './custom-stencil-01.component';
@NgModule({
declarations: [ CustomStencil01 ],
exports: [ CustomStencil01 ]
})
export class CustomEditorsModule {}
```
And import into your Application Module
```ts
@NgModule({
imports: [
// ...
CustomEditorsModule
// ...
],
providers: [],
bootstrap: [ AppComponent ]
})
export class AppModule {}
```
Now you can import [`FormRenderingService`](../core/services/form-rendering.service.md) in any of your Views and provide new mapping:
```ts
import { Component } from '@angular/core';
import { CustomStencil01 } from './custom-stencil-01.component';
@Component({...})
export class MyView {
constructor(formRenderingService: FormRenderingService) {
formRenderingService.setComponentTypeResolver('custom_stencil_01', () => CustomStencil01, true);
}
}
```
At runtime you should now see your custom Angular component rendered in place of the stencils:
![adf stencil runtime](../docassets/images/adf-stencil-02.png)
## Form Extensibility for APS/AAE
- [Form Extensibility for APS Stencil](./aps-extensions.md)
- [Form Extensibility for AAE Form Widget](./aae-extensions.md)
## See Also