marko/dist/node_modules/@internal/components-beginComponent/index.js

UI Components + streaming, async, high performance, HTML templating for Node.js and the browser.

"use strict";

const ComponentDef = require("../../../runtime/components/ComponentDef");

var FLAG_WILL_RERENDER_IN_BROWSER = 1;
// var FLAG_HAS_RENDER_BODY = 2;
var FLAG_OLD_HYDRATE_NO_CREATE = 8;

module.exports = function beginComponent(
componentsContext,
component,
key,
ownerComponentDef,
isSplitComponent,
isImplicitComponent,
existingComponentDef)
{
  var componentId = component.id;

  // existingComponentDef is only here to allow binding a conditional
  // widget.  It should be removed when the legacy compat layer is removed.
  var componentDef =
  existingComponentDef || (
  componentsContext.o_ = new ComponentDef(
    component,
    componentId,
    componentsContext
  ));

  var ownerIsRenderBoundary =
  ownerComponentDef && ownerComponentDef.t_;
  var ownerWillRerender =
  ownerComponentDef &&
  ownerComponentDef.u_ & FLAG_WILL_RERENDER_IN_BROWSER;
  // On the server
  if (ownerWillRerender && !componentsContext.v_) {
    componentDef.u_ |= FLAG_WILL_RERENDER_IN_BROWSER;
    componentDef._wrr = true;
    return componentDef;
  }

  if (componentsContext.w_) {
    componentsContext.w_ = false;
    isSplitComponent = false;
  } else if (isImplicitComponent === true) {
    // We don't mount implicit components rendered on the server
    // unless the implicit component is nested within a UI component
    // that will re-render in the browser
    return componentDef;
  }

  componentsContext.b_.push(componentDef);

  let out = componentsContext.r_;
  let runtimeId = out.global.runtimeId;

  componentDef.t_ = true;
  componentDef.x_ = componentsContext.v_;

  if (isSplitComponent === false && out.global.noBrowserRerender !== true) {
    componentDef.u_ |= FLAG_WILL_RERENDER_IN_BROWSER;
    componentDef._wrr = true;
    componentsContext.v_ = false;
  }

  if (out.global.oldHydrateNoCreate === true) {
    componentDef.u_ |= FLAG_OLD_HYDRATE_NO_CREATE;
  }

  if ((ownerIsRenderBoundary || ownerWillRerender) && key != null) {
    out.w(
      "<!--" +
      runtimeId +
      "^" +
      componentId +
      " " +
      ownerComponentDef.id +
      " " +
      key +
      "-->"
    );
  } else {
    out.w("<!--" + runtimeId + "#" + componentId + "-->");
  }

  return componentDef;
};