forked from kscience/visionforge
A prototype for context receivers
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@ -22,7 +22,7 @@ internal const val RENDER_FUNCTION_NAME = "renderAllVisionsById"
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/**
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/**
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* Render a fragment in the given consumer and return a map of extracted visions
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* Render a fragment in the given consumer and return a map of extracted visions
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* @param manager a VisionManager used for serialization
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* @param context a context used to create a vision fragment
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* @param embedData embed Vision initial state in the HTML
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* @param embedData embed Vision initial state in the HTML
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* @param fetchDataUrl fetch data after first render from given url
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* @param fetchDataUrl fetch data after first render from given url
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* @param fetchUpdatesUrl receive push updates from the server at given url
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* @param fetchUpdatesUrl receive push updates from the server at given url
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@ -0,0 +1,96 @@
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package space.kscience.visionforge.html
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import kotlinx.html.*
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import space.kscience.dataforge.context.ContextAware
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import space.kscience.dataforge.meta.Meta
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import space.kscience.dataforge.meta.MetaSerializer
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import space.kscience.dataforge.meta.isEmpty
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import space.kscience.dataforge.misc.DFExperimental
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import space.kscience.dataforge.names.Name
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import space.kscience.dataforge.names.NameToken
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import space.kscience.dataforge.names.asName
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import space.kscience.dataforge.names.parseAsName
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import space.kscience.visionforge.Vision
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import space.kscience.visionforge.VisionManager
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import space.kscience.visionforge.setAsRoot
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import space.kscience.visionforge.visionManager
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/**
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* Rendering context for visions in HTML
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*/
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public interface HtmlVisionContext : ContextAware {
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/**
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* Generate div id for vision div tag
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*/
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public fun generateId(name: Name): String = "vision[$name]"
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/**
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* Render vision at given [DIV]
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*/
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public fun DIV.renderVision(name: Name, vision: Vision, outputMeta: Meta)
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}
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public typealias HtmlVisionContextFragment = context(HtmlVisionContext) TagConsumer<*>.() -> Unit
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context(HtmlVisionContext)
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public fun HtmlVisionContextFragment(content: TagConsumer<*>.() -> Unit): HtmlVisionFragment = content
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context(HtmlVisionContext)
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private fun <T> TagConsumer<T>.vision(
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visionManager: VisionManager,
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name: Name,
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vision: Vision,
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outputMeta: Meta = Meta.EMPTY,
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): T = div {
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id = generateId(name)
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classes = setOf(VisionTagConsumer.OUTPUT_CLASS)
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vision.setAsRoot(visionManager)
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attributes[VisionTagConsumer.OUTPUT_NAME_ATTRIBUTE] = name.toString()
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if (!outputMeta.isEmpty()) {
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//Hard-code output configuration
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script {
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attributes["class"] = VisionTagConsumer.OUTPUT_META_CLASS
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unsafe {
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+visionManager.jsonFormat.encodeToString(MetaSerializer, outputMeta)
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}
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}
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}
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renderVision(name, vision, outputMeta)
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}
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context(HtmlVisionContext)
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private fun <T> TagConsumer<T>.vision(
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name: Name,
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vision: Vision,
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outputMeta: Meta = Meta.EMPTY,
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): T = vision(context.visionManager, name, vision, outputMeta)
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/**
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* Insert a vision in this HTML.
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*/
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context(HtmlVisionContext)
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@DFExperimental
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@VisionDSL
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public fun <T> TagConsumer<T>.vision(
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name: Name? = null,
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visionProvider: VisionOutput.() -> Vision,
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): T {
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val output = VisionOutput(context, name)
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val vision = output.visionProvider()
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val actualName =
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name ?: NameToken(VisionTagConsumer.DEFAULT_VISION_NAME, vision.hashCode().toUInt().toString()).asName()
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return vision(output.buildVisionManager(), actualName, vision, output.meta)
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}
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/**
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* Insert a vision in this HTML.
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*/
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context(HtmlVisionContext)
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@DFExperimental
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@VisionDSL
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public fun <T> TagConsumer<T>.vision(
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name: String?,
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visionProvider: VisionOutput.() -> Vision,
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): T = vision(name?.parseAsName(), visionProvider)
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