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Monorepo for SASS-based Kendo UI themes
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README.md

Kendo UI Themes Monorepo

This is a monorepo that holds the SCSS-based themes for the Kendo UI components.

License

This package is part of the following suites:

All available Kendo UI commercial licenses may be obtained at http://www.telerik.com/purchase/kendo-ui.

If you do not own a commercial license, the usage of this software shall be governed by the Apache License, Version 2.0.

Basic Usage

For more information on how to add one of the themes in your project, refer to the following articles:

Development

The styles are split into components and the dependencies are managed by the import-once mixin. When you configure the styles, define them within an import-once block. In this way, when required from multiple files, they are bundled once.

During development, the SCSS files are linted on every commit and built on every push command. To test the theme package against a component, link the theme in the components package.

Browser-specific properties are generated at build-time through the PostCSS autoprefixer.

Working with This Monorepo

The repository uses lerna to ship the multiple theme packages from a single Git repository. For details why this is a good idea for the themes, see this issue.

To set up the monorepo:

Run the build/install.sh file. To do that, on the root level of the repository, run the following row in a Git Bash:

./build/install.sh

To perform a clean setup (remove existing node_modules) of the monorepo, on the root level of the repository, run the following row in a Git Bash:

./build/clean-install.sh

The following commands have to be run in the root of the repository and help you check if various tasks are accomplished successfully:

  • To lint over all the themes, run npm run lint.

  • To build all the themes with node-sass, run npm run sass.

  • To build all the themes with dart-sass, run npm run dart.

  • To run the lint, JS, and build tests, run npm test.

  • To run builds on every file change of a specific theme:

    • Change the working directory in the terminal to the specific theme. For example, cd packages/bootstrap will change to the bootstrap theme.
    • Run npm run watch. This will start a process that will listen for changes and build the theme, whenever a file is changed.

Changes in the develop branch release a new package version on the dev channel and in the (version)-dev.(hash) format. To install the latest development version of a given theme, run npm install (themename)@dev—for example, npm install @progress/kendo-theme-default@dev.

Visual tests

To guard against regressions and make pull request reviews easier, the CI build makes screenshots of the sample pages in tests/visual/*.html. This happens automatically for all feature branches. The sample pages contain static HTML that is the recommended rendering for components that use the theme.

To generate screenshots for a specific theme:

  1. Build the theme with npm run sass or npm run dart
  2. Run npm run create-screenshots <theme>, substituting <theme> with a theme name.

These steps will create new screenshots in tests/output. Note that due to platform differences, all of the files will be marked as changed.

Embedding Resources

To avoid hosting-related issues in projects that use the themes, the resources are embedded by encoding them in the output CSS. For more details, refer to this issue.

To embed the latest resources in a given theme:

  1. Run the npm run embed-assets task in the theme subfolder. The task generates a file with the same name which registers a Base64-encoded version in the $data-uris SCSS map. For example, the foo.woff font file will be encoded in a foo.scss file which can later be imported through @import './font/foo';.

  2. Inline the encoded file inside the CSS through map-get( $data-uris, 'foo.woff' ). For example:

    @font-face {
        font-family: 'WebComponentsIcons';
        src: url(map-get( $data-uris, 'WebComponentsIcons.woff' )) format( "woff" );
    }

Documenting Variables

The available variables for customizing each theme are listed in the article on customization for each theme (docs/customization.md) The file is generated from the SCSS source files by running the npm run api command.

To document a variable, use triple-slash comments (///) before its definition.

/// Variable description
$foo: 42 !default;

To group variables, use the @group directive.

/// Variable description
/// @group random
$foo: 42 !default;

/// Another variable description
/// @group random
$bar: 1024 !default;

To change the layout or the front meter of the generated help topic, change the build/customization.md.hbs source file.

Copyright © 2019 Progress Software Corporation and/or one of its subsidiaries or affiliates. All rights reserved.

Progress, Telerik, and certain product names used herein are trademarks or registered trademarks of Progress Software Corporation and/or one of its subsidiaries or affiliates in the U.S. and/or other countries.

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