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1214b31cfc
fix: changeset crashes because it uses internal prettier version refactor: add asdf tool versioning file fix: iOS build resources fix: backend tests break every year refactor: update some backend unit tests feat: add direnv for nix feat: update nix flake to not rely on buildFHSUserEnv feat: enable checkJs by default feat: custom ion-icon package feat: custom ion-icon package feat: custom ion-icon element feat: custom ion-icon element feat: custom ion-icon element feat: custom ion icon element fix: e2e tests
83 lines
2.2 KiB
Markdown
83 lines
2.2 KiB
Markdown
# Icons
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A few notes to our icon set, for users and future maintainers.
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You will need to setup fonttools with python
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```shell
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python -m venv .venv && .venv/bin/python -m pip install -r requirements.txt
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```
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Alternatively, anything that puts `fonttools` within your path will do as well.
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## Usage
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To find icon names, visit the
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[Google Material Symbols Page](https://fonts.google.com/icons?icon.style=Rounded)
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We have extended the `ion-icon` element via a directive. **Make sure your
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module imports the `IonIconModule`**, you can then proceed using `ion-icon`s
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as usual.
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The modified `ion-icon` comes with a few extra features:
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- `[style.--fill]` controls the fill color of the icon.
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- `[style.--weight]` controls the font weight of the icon.
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- `[style.--size]` controls the font size of the icon.
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- `[style.--grade]` controls the font grade of the icon.
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All of these attributes are animated as described
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[here](https://developers.google.com/fonts/docs/material_symbols).
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You can also control these attributes via css:
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```scss
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ion-icon ::ng-deep stapps-icon {
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--fill: 1;
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--grade: 0;
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--weight: 400;
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}
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```
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Sometimes icon code points cannot be determined automatically, for whatever
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reason. In this case, you will need to specify the code point manually in
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the config file.
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### Icon Font Minification
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Icon font minification is done automatically, but requires you to
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follow a few simple rules:
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1. Use the Proxy object to reference icon names in TypeScript files and code
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```ts
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SCIcon.icon_name;
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```
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2. When using `ion-icon` in HTML, reference either icons that went through
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the `SCIcon` tag or write them as one of the following:
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```html
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<!-- do -->
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<ion-icon name="icon_name"></ion-icon>
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<ion-icon [name]="'icon_name'"></ion-icon>
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<!-- don't -->
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<ion-icon name="icon_name" />
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<!-- self-closing -->
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<ion-icon [name]="condition ? 'icon_name' : 'other_icon_name'"></ion-icon>
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```
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Icons that are unknown at compile time can be specified in the
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`additionalIcons` property of the `icons.config.ts` file.
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The minification can then be done by running
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```shell
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npm run minify-icons
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```
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Unfortunately, I was unable to find a JS package that could to the job,
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and had to rely on the Python module [fonttools](https://github.com/fonttools/fonttools).
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