Is it possible to toggle CSS classes worldwide?

One of my CSS techniques involves outlining every div in red, which is helpful for debugging alignment of elements.

In my app, I have a button that currently toggles various debugging features. I'm interested in incorporating the toggling of these red outlines as well.

What would be the best approach to toggle these classes while using angular and the angular cli? I want to avoid dynamically loading and unloading the style sheet if possible.

Answer №1

If you're looking for inspiration, consider checking out the Angular Material website itself. By visiting the URL, you'll notice a top bar that allows users to switch themes. You can implement a similar feature by creating separate CSS styles for debug and normal modes. The debug mode can activate the desired effects. Behind the scenes, Angular Material accomplishes this through the following steps:

  1. Maintaining a list of CSS styles in the themes variable within src\app\shared\theme-picker\theme-picker.ts file.

  2. Using the setStyle method from the StyleManager (found in src\app\shared\style-manager\style-manager.ts) based on user selections.

  3. Manipulating the link href tag in the HTML head section with the help of the style-manager.

This approach offers a cleaner solution for implementing different themes. For those interested, the source code of the site is available here.

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