postcss/resources/META-INF/plugin.xml

<idea-plugin package="org.intellij.plugins.postcss">
  <name>PostCSS</name>
  <id>org.intellij.plugins.postcss</id>
  <category>Style Sheets</category>
  <vendor>JetBrains</vendor>
  <description><![CDATA[
    <p>Provides <a href="https://postcss.org/">PostCSS</a> support to all JetBrains IDEs that
    <a href="https://www.jetbrains.com/products/#lang=js&type=ide">support JavaScript</a>.

    <h2>Features</h2>
    <ul>
      <li>Option to enable PostCSS support for <code>.css</code> files
      <li>Syntax highlighting, code completion, and other code insight features for the following PostCSS plugins:
      <ul>
        <li><a href="https://github.com/postcss/postcss-custom-properties">postcss-custom-properties</a><
        <li><a href="https://github.com/pascalduez/postcss-apply">postcss-apply</a></li>
        <li><a href="https://github.com/postcss/postcss-custom-media">postcss-custom-media</a></li>
        <li><a href="https://github.com/postcss/postcss-media-minmax">postcss-media-minmax</a></li>
        <li><a href="https://github.com/postcss/postcss-custom-selectors">postcss-custom-selectors</a></li>
        <li><a href="https://github.com/jonathantneal/postcss-nesting">postcss-nesting</a></li>
        <li><a href="https://github.com/postcss/postcss-nested">postcss-nested</a></li>
      </ul>
    </ul>

    <h2>Getting started</h2>
    <p>For information on getting started, head over to the <a href="https://www.jetbrains.com/help/">documentation</a> for your IDE.
      For WebStorm, you can check out this section in the
      <a href="https://www.jetbrains.com/help/webstorm/style-sheets.html">documentation</a>.
  ]]></description>

  <dependencies>
    <plugin id="com.intellij.css"/>
    <plugin id="com.intellij.modules.lang"/>
    <plugin id="com.intellij.modules.ultimate"/>
    <module name="intellij.css.backend"/>
    <module name="intellij.css.analysis"/>
  </dependencies>

  <content>
    <module name="intellij.postcss/copyright"/>
  </content>

  <extensions defaultExtensionNs="com.intellij">
    <dependencySupport kind="javascript" coordinate="npm:postcss" displayName="PostCSS"/>
    <css.dialect implementation="org.intellij.plugins.postcss.PostCssDialect"/>
    <lang.substitutor language="CSS" implementationClass="org.intellij.plugins.postcss.PostCssLanguageSubstitutor"/>
    <embeddedTokenTypesProvider implementation="org.intellij.plugins.postcss.PostCssEmbeddedTokenTypesProvider"/>
    <embeddedTokenHighlighter implementation="org.intellij.plugins.postcss.highlighting.PostCssSyntaxHighlighter"/>
    <fileType language="PostCSS" extensions="pcss" fieldName="POST_CSS" name="PostCSS"
              implementationClass="org.intellij.plugins.postcss.PostCssFileType"/>
    <lang.parserDefinition language="PostCSS" implementationClass="org.intellij.plugins.postcss.parser.PostCssParserDefinition"/>
    <lang.ast.factory language="PostCSS" implementationClass="org.intellij.plugins.postcss.psi.impl.PostCssTreeElementFactory"/>
    <multiLangCommenter implementation="org.intellij.plugins.postcss.PostCssCommentProvider"/>
    <codeStyleSettingsProvider implementation="org.intellij.plugins.postcss.settings.PostCssStyleSettingsProvider"/>
    <internalFileTemplate name="PostCSS File"/>
    <lang.syntaxHighlighter language="PostCSS" implementationClass="org.intellij.plugins.postcss.highlighting.PostCssSyntaxHighlighter"/>
    <colorSettingsPage implementation="org.intellij.plugins.postcss.highlighting.PostCssColorsPage"/>
    <css.structureViewChildrenProvider implementation="org.intellij.plugins.postcss.fileStructure.PostCssStructureViewElementsProvider"/>
    <completion.contributor language="CSS"
                            implementationClass="org.intellij.plugins.postcss.completion.PostCssDumbAwareCompletionContributor"
                            order="before cssDumbCompletion"/>
    <completion.contributor language="CSS" implementationClass="org.intellij.plugins.postcss.completion.PostCssCompletionContributor"/>
    <css.elementDescriptorProvider implementation="org.intellij.plugins.postcss.descriptors.PostCssElementDescriptorProvider"/>
    <psi.referenceContributor language="CSS" implementation="org.intellij.plugins.postcss.references.PostCssReferenceContributor"/>
    <lang.findUsagesProvider language="PostCSS" implementationClass="org.intellij.plugins.postcss.usages.PostCssFindUsagesProvider"/>
    <referencesSearch implementation="org.intellij.plugins.postcss.usages.PostCssUsageSearcher"/>
    <idIndexer filetype="PostCSS" implementationClass="org.intellij.plugins.postcss.usages.PostCssIdIndexer"/>
    <lang.formatter language="PostCSS" implementationClass="org.intellij.plugins.postcss.formatter.PostCssFormattingModelBuilder"/>

    <stubIndex implementation="org.intellij.plugins.postcss.psi.stubs.PostCssCustomSelectorIndex"/>
    <stubIndex implementation="org.intellij.plugins.postcss.psi.stubs.PostCssCustomMediaIndex"/>
    <stubElementTypeHolder externalIdPrefix="PostCSS." class="org.intellij.plugins.postcss.PostCssStubElementTypes"/>

    <gotoSymbolContributor implementation="org.intellij.plugins.postcss.PostCssGotoSymbolContributor"/>

    <inspection.basicVisitor class="org.intellij.plugins.postcss.psi.impl.PostCssElementVisitor"/>

    <localInspection language="PostCSS" bundle="messages.PostCssBundle"
                     key="inspections.nesting.problems.name"
                     groupKey="inspections.group.name" enabledByDefault="false" level="WARNING"
                     implementationClass="org.intellij.plugins.postcss.inspections.PostCssNestingInspection"/>
    <localInspection language="PostCSS" bundle="messages.PostCssBundle"
                     key="inspections.custom.selector.problems.name"
                     groupKey="inspections.group.name" enabledByDefault="true" level="ERROR"
                     implementationClass="org.intellij.plugins.postcss.inspections.PostCssCustomSelectorInspection"/>
    <localInspection language="PostCSS" bundle="messages.PostCssBundle"
                     key="inspections.media.query.range.problems.name"
                     groupKey="inspections.group.name" enabledByDefault="true" level="ERROR"
                     implementationClass="org.intellij.plugins.postcss.inspections.PostCssMediaRangeInspection"/>
    <localInspection language="PostCSS" bundle="messages.PostCssBundle"
                     key="inspections.custom.media.problems.name"
                     groupKey="inspections.group.name" enabledByDefault="true" level="ERROR"
                     implementationClass="org.intellij.plugins.postcss.inspections.PostCssCustomMediaInspection"/>
    <localInspection language="PostCSS" bundle="messages.PostCssBundle"
                     key="inspections.unresolved.module.value.reference"
                     groupKey="inspections.group.name" enabledByDefault="true" level="ERROR"
                     implementationClass="org.intellij.plugins.postcss.inspections.PostCssUnresolvedModuleValueReferenceInspection"/>

  </extensions>
  <extensions defaultExtensionNs="com.intellij.css">
    <supportedFileTypesProvider implementation="org.intellij.plugins.postcss.index.PostCssSupportedFileTypesProvider" version="1"/>
    <cssInspectionFilter language="PostCSS"
                         implementationClass="org.intellij.plugins.postcss.inspections.suppress.PostCssInspectionFilter"/>
    <descriptorHandler forClass="org.intellij.plugins.postcss.psi.impl.PostCssCustomSelectorImpl"
                       implementationClass="org.intellij.plugins.postcss.psi.impl.PostCssCustomSelectoDescriptorHandler"/>
  </extensions>
</idea-plugin>