For a custom language plugin, how can my plugin be listed when a user opens a file and the dialog "Plugins supporting files with extension *.foo are found" comes up?

Hi,

I recently created a plugin to support the Robot Framework, and got it published to the Jetbrains repository. Here it is: http://plugins.jetbrains.com/plugin/7430?pr=idea However, some people at my work opened a Robot file when they didn't have the plugin installed, and my plugin wasn't suggested as one of the plugins supporting the file type.

To be specific, the dialog "Plugins supporting files with extension *.robot are found" comes up, and when you click "Install plugins" mine doesn't appear in the list.

You can see my source code on github (https://github.com/jivesoftware/robot-intellij-plugin).

Does anyone know what the requirements are for your plugin to be suggested? I don't see this documented anywhere! I have a fileTypeFactory extension defined, and I'm just now adding an action to create a Robot file from the "New" menu. Everything works fine when you install the plugin, there's an icon, etc.

Here's the relevant bits of my plugin.xml:

  <extensions defaultExtensionNs="com.intellij">
        <fileTypeFactory implementation="com.jivesoftware.robot.intellij.plugin.lang.RobotFileTypeFactory"/>
        <syntaxHighlighter key="soy" implementationClass="com.jivesoftware.robot.intellij.plugin.lang.RobotSyntaxHighlighter"/>
        <colorSettingsPage implementation="com.jivesoftware.robot.intellij.plugin.lang.RobotColorsAndFontsPage"/>

        <lang.parserDefinition language="RobotTestFile" implementationClass="com.jivesoftware.robot.intellij.plugin.parser.RobotParserDefinition"/>
        <psi.referenceContributor implementation="com.jivesoftware.robot.intellij.plugin.elements.references.RobotKeywordReferenceContributor"/>
        <gotoSymbolContributor implementation="com.jivesoftware.robot.intellij.plugin.elements.symbols.RobotKeywordDefinitionSymbolContributor"/>
        <lang.commenter language="RobotTestFile" implementationClass="com.jivesoftware.robot.intellij.plugin.lang.RobotCommenter"/>

        <!-- This enables Find Usages of Robot Keywords defined in Robot -->
        <lang.findUsagesProvider language="RobotTestFile"
                                 implementationClass="com.jivesoftware.robot.intellij.plugin.elements.usages.RobotKeywordUsagesProvider"/>

        <!-- This enables Find Usages of a Java method that is a Robot Keyword definition -->
        <customUsageSearcher implementation="com.jivesoftware.robot.intellij.plugin.elements.usages.RobotCustomUsagesSearcher" />

        <!-- This doesn't do much yet, but will provide find usages highlighting, etc. -->
       <!-- <findUsagesHandlerFactory implementation="com.jivesoftware.robot.intellij.plugin.elements.usages.RobotFindUsagesHandlerFactory"/>-->

        <!-- Enables auto-completion of robot keywords -->
        <completion.contributor language="RobotTestFile"
                                implementationClass="com.jivesoftware.robot.intellij.plugin.elements.completion.RobotCompletionContributor"/>

        <internalFileTemplate name="fileTemplates.internal.RobotTestCaseFile"/>
        <internalFileTemplate name="fileTemplates.internal.RobotKeywordsFile"/>

    </extensions>

    <application-components>
        <!-- Add your application components here -->
    </application-components>

    <project-components>
        <!-- Add your project components here -->
    </project-components>

    <actions>
        <action id="RobotPlugin.NewFile"  text="Robot File"
                description="Create a new Robot File">
            <add-to-group group-id="NewXml" anchor="last"/>
        </action>

    </actions>

Thanks in advance for any help!!