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abp/docs/en/Themes/LeptonXLite/Angular.md

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# LeptonX Lite Angular UI
LeptonX Lite has implementation for the ABP Framework Angular Client. It's a simplified variation of the [LeptonX Theme](https://x.leptontheme.com/).
> If you are looking for a professional, enterprise ready theme, you can check the [LeptonX Theme](https://x.leptontheme.com/), which is a part of [ABP Commercial](https://commercial.abp.io/).
> See the [Theming document](https://docs.abp.io/en/abp/latest/UI/AspNetCore/Theming) to learn about themes.
## Installation
This theme is **already installed** when you create a new solution using the startup templates. If you are using any other template, you can install this theme by following the steps below:
To add `LeptonX-lite` into your project,
- Install `@abp/ng.theme.lepton-x`
```bash
yarn add @abp/ng.theme.lepton-x
```
- Install `bootstrap-icons`
```bash
yarn add bootstrap-icons
```
- Then, we need to edit the styles array in `angular.json` to replace the existing style with the new one in the following link :
* [Styles - Angular UI](../../UI/Angular/Theme-Configurations.md)
Note: You should remove the old theme styles from "angular.json" if you are switching from "ThemeBasic" or "Lepton."
Look at the [Theme Configurations](../../UI/Angular/Theme-Configurations) list of styles. Depending on your theme, you can alter your styles in angular.json.
- Finally, remove `ThemeBasicModule` from `app.module.ts`, and import the related modules in `app.module.ts`
```js
import { ThemeLeptonXModule } from "@abp/ng.theme.lepton-x";
import { SideMenuLayoutModule } from "@abp/ng.theme.lepton-x/layouts";
@NgModule({
imports: [
// ...
// do not forget to remove ThemeBasicModule or other old theme module
// ThemeBasicModule.forRoot(),
ThemeLeptonXModule.forRoot(),
SideMenuLayoutModule.forRoot(),
],
// ...
})
export class AppModule {}
```
Note: If you employ [Resource Owner Password Flow](https://docs.abp.io/en/abp/latest/UI/Angular/Authorization#resource-owner-password-flow) for authorization, you should import the following module as well:
```js
import { AccountLayoutModule } from "@abp/ng.theme.lepton-x/account";
@NgModule({
// ...
imports: [
// ...
AccountLayoutModule.forRoot(),
// ...
],
// ...
})
export class AppModule {}
```
To change the logos and brand color of `LeptonX`, simply add the following CSS to the `styles.scss`
```css
:root {
--lpx-logo: url("/assets/images/logo.png");
--lpx-logo-icon: url("/assets/images/logo-icon.png");
--lpx-brand: #edae53;
}
```
- `--lpx-logo` is used to place the logo in the menu.
- `--lpx-logo-icon` is a square icon used when the menu is collapsed.
- `--lpx-brand` is a color used throughout the application, especially on active elements.
### Server Side
In order to migrate to LeptonX on your server side projects (Host and/or AuthServer projects), please follow the [Server Side Migration](AspNetCore.md) document.
## Customization
### Layouts
The Angular version of LeptonX Lite provides **layout components** for your **user interface** on [ABP Framework Theming](https://docs.abp.io/en/abp/latest/UI/Angular/Theming). You can use the layouts to **organize your user interface**. You can replace the **layout components** and some parts of the **layout components** with the [ABP replaceable component system](https://docs.abp.io/en/abp/latest/UI/Angular/Component-Replacement).
The main responsibility of a theme is to **provide** the layouts. There are **three pre-defined layouts that must be implemented by all the themes:**
- **ApplicationLayoutComponent:** The **default** layout which is used by the **main** application pages.
- **AccountLayoutComponent:** Mostly used by the **account module** for **login**, **register**, **forgot password**... pages.
- **EmptyLayoutComponent:** The **Minimal** layout that **has no layout components** at all.
The **Layout components** and all the replacable components are predefined in `eThemeLeptonXComponents` as enum.
### How to replace a component
```js
import { ReplaceableComponentsService } from '@abp/ng.core'; // imported ReplaceableComponentsService
import { eIdentityComponents } from '@abp/ng.identity'; // imported eIdentityComponents enum
import { eThemeLeptonXComponents } from '@abp/ng.theme.lepton-x'; // imported eThemeLeptonXComponents enum
//...
@Component(/* component metadata */)
export class AppComponent {
constructor(
private replaceableComponents: ReplaceableComponentsService, // injected the service
) {
this.replaceableComponents.add({
component: YourNewApplicationLayoutComponent,
key: eThemeLeptonXComponents.ApplicationLayout,
});
}
}
```
See the [Component Replacement](https://docs.abp.io/en/abp/latest/UI/Angular/Component-Replacement) documentation for more information on how to replace components.
### Brand Component
The **brand component** is a simple component that can be used to display your brand. It contains a **logo** and a **company name**. You can change the logo via css but if you want to change logo component, the key is `eThemeLeptonXComponents.Logo`
```js
///...
this.replaceableComponents.add({
component: YourNewLogoComponent,
key: eThemeLeptonXComponents.Logo,
});
///...
```
![Brand component](../../images/leptonxlite-brand-component.png)
## Breadcrumb Component
On websites that have a lot of pages, **breadcrumb navigation** can greatly **enhance the way users find their way** around. In terms of **usability**, breadcrumbs reduce the number of actions a website **visitor** needs to take in order to get to a **higher-level page**, and they **improve** the **findability** of **website sections** and **pages**.
```js
///...
this.replaceableComponents.add({
component: YourNewSidebarComponent,
key: eThemeLeptonXComponents.Breadcrumb,
});
///...
```
![Breadcrumb component](../../images/leptonxlite-breadcrumb-component.png)
## Sidebar Menu Component
Sidebar menus have been used as a **directory for Related Pages** to a **Service** offering, **Navigation** items to a **specific service** or topic and even just as **Links** the user may be interested in.
```js
///...
this.replaceableComponents.add({
component: YourNewSidebarComponent,
key: eThemeLeptonXComponents.Sidebar,
});
///...
```
![Sidebar menu component](../../images/leptonxlite-sidebar-menu-component.png)
## Page Alerts Component
Provides contextual **feedback messages** for typical user actions with a handful of **available** and **flexible** **alert messages**. Alerts are available for any length of text, as well as an **optional dismiss button**.
![Page alerts component](../../images/leptonxlite-page-alerts-component.png)
```js
///...
this.replaceableComponents.add({
component: YourNewPageAlertContainerComponent,
key: eThemeLeptonXComponents.PageAlertContainer,
});
///...
```
## Toolbar Component
![Breadcrumb component](../../images/leptonxlite-toolbar-component.png)
Toolbar items are used to add **extra functionality to the toolbar**. The toolbar is a **horizontal bar** that **contains** a group of **toolbar items**.
```js
///...
this.replaceableComponents.add({
component: YourNewNavItemsComponent,
key: eThemeLeptonXComponents.NavItems,
});
///...
```
## Toolbar Items
There are two parts to the toolbar. The first is Language-Switch. The second is the User-Profile element. You can swap out each of these parts individually.
## Language Switch Component
Think about a **multi-lingual** website and the first thing that could **hit your mind** is **the language switch component**. A **navigation bar** is a **great place** to **embed a language switch**. By embedding the language switch in the navigation bar of your website, you would **make it simpler** for users to **find it** and **easily** switch the **language** <u>**without trying to locate it across the website.**</u>
![Language switch component](../../images/leptonxlite-language-switch-component.png)
```js
///...
this.replaceableComponents.add({
component: YourNewLanguagesComponent,
key: eThemeLeptonXComponents.Languages,
});
///...
```
## User Menu Component
The **User Menu** is the **menu** that **drops down** when you **click your name** or **profile picture** in the **upper right corner** of your page (**in the toolbar**). It drops down options such as **Settings**, **Logout**, etc.
![User menu component](../../images/leptonxlite-user-menu-component.png)
```js
///...
this.replaceableComponents.add({
component: YourNewCurrentUserComponent,
key: eThemeLeptonXComponents.CurrentUser,
});
///...
```
Note: The language selection component in the Volo app is not replaceable. It is part of the settings menu.
## Mobile Navbar Component
The **mobile navbar component** is used to display the **navbar menu on mobile devices**. The mobile navbar component is a **dropdown menu** that contains language selection and user menu.
![Mobile user menu component](../../images/leptonxlite-mobile-user-menu-component.png)
```js
///...
this.replaceableComponents.add({
component: YourNewMobileNavbarComponent,
key: eThemeLeptonXComponents.MobileNavbar,
});
///...
```
## Mobile Navbar Items.
There are two parts of the mobile navbar. The mobile navbar has Language-Switch and User-Profile. You can swap out each of these parts individually.
The Mobile language-Selection component key is `eThemeLeptonXComponents.MobileLanguageSelection`.
The Mobile User-Profile component key is `eThemeLeptonXComponents.MobileUserProfile`.
## Footer Component
![Angular Footer Component](../../images/angular-footer.png)
The Footer is the section of content at the very bottom of the site. This section of the content can be modified.
Inject **FooterLinksService** and use the **setFooterInfo** method of **FooterLinksService**
to assign path or link and description.
**descUrl** and **footerLinks** are nullable. Constant **footerLinks** are on the right side of footer.
```js
///...
const footerLinks = [
{
link: "/components/bootstrap/badge",
text: "Manage Your Profile",
},
{
link: "/components/bootstrap/border",
text: "My Security Logs",
},
];
const footerInfo: FooterNav = {
desc: "Home",
descUrl: "/components/home",
footerLinks: footerLinks,
};
this.footerLinksService.setFooterInfo(footerInfo);
///...
```
If you want to change the footer component, the key is `eThemeLeptonXComponents.Footer`
```js
///...
this.replaceableComponents.add({
component: YourNewFooterComponent,
key: eThemeLeptonXComponents.Footer,
});
///...
```