Microsoft Power Platform/Dynamics 365 CE - Generate TypeScript Definitions

Automatically creates TypeScript type definitions compatible with @types/xrm by extracting form attributes and controls from Dynamics 365/Power Platform model-driven applications.

目前為 2025-04-09 提交的版本,檢視 最新版本

您需要先安裝使用者腳本管理器擴展,如 TampermonkeyGreasemonkeyViolentmonkey 之後才能安裝該腳本。

You will need to install an extension such as Tampermonkey to install this script.

您需要先安裝使用者腳本管理器擴充功能,如 TampermonkeyViolentmonkey 後才能安裝該腳本。

您需要先安裝使用者腳本管理器擴充功能,如 TampermonkeyUserscripts 後才能安裝該腳本。

你需要先安裝一款使用者腳本管理器擴展,比如 Tampermonkey,才能安裝此腳本

您需要先安裝使用者腳本管理器擴充功能後才能安裝該腳本。

(我已經安裝了使用者腳本管理器,讓我安裝!)

你需要先安裝一款使用者樣式管理器擴展,比如 Stylus,才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展,比如 Stylus,才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展,比如 Stylus,才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展後才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展後才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展後才能安裝此樣式

(我已經安裝了使用者樣式管理器,讓我安裝!)

// ==UserScript==
// @name         Microsoft Power Platform/Dynamics 365 CE - Generate TypeScript Definitions
// @namespace    https://github.com/gncnpk/xrm-generate-ts-overloads
// @author       Gavin Canon-Phratsachack (https://github.com/gncnpk)
// @version      1.986
// @license      GPL-3.0
// @description  Automatically creates TypeScript type definitions compatible with @types/xrm by extracting form attributes and controls from Dynamics 365/Power Platform model-driven applications.
// @match        https://*.dynamics.com/main.aspx?appid=*&pagetype=entityrecord&etn=*&id=*
// @grant        none
// ==/UserScript==

(function () {
  "use strict";

  const groupItemsByType = (items) => {
    return Object.entries(items).reduce((acc, [itemName, itemType]) => {
        if (!acc[itemType]) {
            acc[itemType] = [];
        }
        acc[itemType].push(itemName);
        return acc;
    }, {});
};
  const stripNonAlphaNumeric = (str) => {
    return str.replace(/\W/g, "");
  };
  // Create a button element and style it to be fixed in the bottom-right corner.
  const btn = document.createElement("button");
  btn.textContent = "Generate TypeScript Definitions";
  btn.style.position = "fixed";
  btn.style.bottom = "20px";
  btn.style.right = "20px";
  btn.style.padding = "10px";
  btn.style.backgroundColor = "#007ACC";
  btn.style.color = "#fff";
  btn.style.border = "none";
  btn.style.borderRadius = "5px";
  btn.style.cursor = "pointer";
  btn.style.zIndex = 10000;
  document.body.appendChild(btn);

  btn.addEventListener("click", () => {
    // Mapping objects for Xrm attribute and control types.
    var attributeTypeMapping = {
      boolean: "Xrm.Attributes.BooleanAttribute",
      datetime: "Xrm.Attributes.DateAttribute",
      decimal: "Xrm.Attributes.NumberAttribute",
      double: "Xrm.Attributes.NumberAttribute",
      integer: "Xrm.Attributes.NumberAttribute",
      lookup: "Xrm.Attributes.LookupAttribute",
      memo: "Xrm.Attributes.StringAttribute",
      money: "Xrm.Attributes.NumberAttribute",
      multiselectoptionset: "Xrm.Attributes.MultiselectOptionSetAttribute",
      optionset: "Xrm.Attributes.OptionSetAttribute",
      string: "Xrm.Attributes.StringAttribute",
    };

    var controlTypeMapping = {
      standard: "Xrm.Controls.StandardControl",
      iframe: "Xrm.Controls.IframeControl",
      lookup: "Xrm.Controls.LookupControl",
      optionset: "Xrm.Controls.OptionSetControl",
      "customsubgrid:MscrmControls.Grid.GridControl":
        "Xrm.Controls.GridControl",
      subgrid: "Xrm.Controls.GridControl",
      timelinewall: "Xrm.Controls.TimelineWall",
      quickform: "Xrm.Controls.QuickFormControl",
    };

    var specificControlTypeMapping = {
      boolean: "Xrm.Controls.BooleanControl",
      datetime: "Xrm.Controls.DateControl",
      decimal: "Xrm.Controls.NumberControl",
      double: "Xrm.Controls.NumberControl",
      integer: "Xrm.Controls.NumberControl",
      lookup: "Xrm.Controls.LookupControl",
      memo: "Xrm.Controls.StringControl",
      money: "Xrm.Controls.NumberControl",
      multiselectoptionset: "Xrm.Controls.MultiselectOptionSetControl",
      optionset: "Xrm.Controls.OptionSetControl",
      string: "Xrm.Controls.StringControl",
    };

    // Object to hold the type information.
    const typeInfo = {
      subGrids: {},
      quickViews: {},
      formAttributes: {},
      formControls: {},
      possibleEnums: [],
      formTabs: {},
      formEnums: {},
      quickViewControls: {},
      quickViewAttributes: {}
    };
    class Subgrid {
      constructor() {
        this.attributes = {};
        this.enums = {};
      }
    }
    class QuickForm {
      constructor() {
        this.attributes = {};
        this.controls = {};
        this.enums = {};
      }
    }

    class Tab {
      constructor() {
        this.sections = {};
      }
    }

    const currentFormName = stripNonAlphaNumeric(Xrm.Page.ui.formSelector
      .getCurrentItem()
      .getLabel());

    // Loop through all controls on the form.
    if (
      typeof Xrm !== "undefined" &&
      Xrm.Page &&
      typeof Xrm.Page.getControl === "function"
    ) {
      Xrm.Page.getControl().forEach((ctrl) => {
        const ctrlType = ctrl.getControlType();
        const mappedType = controlTypeMapping[ctrlType];
        if (mappedType) {
          typeInfo.formControls[ctrl.getName()] = mappedType;
        }
      });
    } else {
      alert("Xrm.Page is not available on this page.");
      return;
    }

    // Loop through all tabs and sections on the form.
    if (typeof Xrm.Page.ui.tabs.get === "function") {
      Xrm.Page.ui.tabs.get().forEach((tab) => {
        let formTab = (typeInfo.formTabs[stripNonAlphaNumeric(tab.getName())] = new Tab());
        tab.sections.forEach((section) => {
          formTab.sections[stripNonAlphaNumeric(section.getName())] = `${stripNonAlphaNumeric(section.getName())}_section`;
        });
      });
    }

    // Loop through all attributes on the form.
    if (typeof Xrm.Page.getAttribute === "function") {
      Xrm.Page.getAttribute().forEach((attr) => {
        const attrType = attr.getAttributeType();
        const attrName = attr.getName();
        const mappedType = attributeTypeMapping[attrType];
        const mappedControlType = specificControlTypeMapping[attrType];
        if (mappedType) {
          typeInfo.formAttributes[attrName] = mappedType;
          attr.controls.forEach((ctrl) => {
            typeInfo.formControls[ctrl.getName()] = mappedControlType;
          });
        }
        if (
          attr.getAttributeType() === "optionset" &&
          attr.controls.get().length > 0
        ) {
          const enumValues = attr.getOptions();
          if (enumValues) {
            typeInfo.formEnums[attrName] = { attribute: "", values: [] };
            typeInfo.formEnums[attrName].values = enumValues;
            typeInfo.formEnums[attrName].attribute = attrName;
            typeInfo.formAttributes[attrName] = `${attrName}_attribute`;
          }
        }
      });
    }

    // Loop through all subgrids on the form.
    if (typeof Xrm.Page.getControl === "function") {
      Xrm.Page.getControl().forEach((ctrl) => {
        if (
          ctrl.getControlType() === "subgrid" ||
          ctrl.getControlType() ===
            "customsubgrid:MscrmControls.Grid.GridControl"
        ) {
          const gridRow = ctrl.getGrid().getRows().get(0);
          const gridName = ctrl.getName();
          let subgrid = (typeInfo.subGrids[gridName] = new Subgrid());
          typeInfo.formControls[gridName] = `${gridName}_gridcontrol`;
          if (gridRow !== null) {
            gridRow.data.entity.attributes.forEach((attr) => {
              const attrType = attr.getAttributeType();
              const attrName = attr.getName();
              const mappedType = attributeTypeMapping[attrType];
              if (mappedType) {
                subgrid.attributes[attrName] = mappedType;
              }
              if (
                attr.getAttributeType() === "optionset" &&
                attr.controls.get().length > 0
              ) {
                const enumValues = attr.getOptions();
                if (enumValues) {
                  subgrid.enums[attrName] = { attribute: "", values: [] };
                  subgrid.enums[attrName].values = enumValues;
                  subgrid.enums[attrName].attribute = attrName;
                  subgrid.attributes[attrName] = `${attrName}_attribute`;
                }
              }
            });
          }
        }
      });
    }

    // Loop through all Quick View controls and attributes on the form.
    if (typeof Xrm.Page.ui.quickForms.get === "function") {
      Xrm.Page.ui.quickForms.get().forEach((ctrl) => {
        const quickViewName = ctrl.getName();
        let quickView = (typeInfo.quickViews[quickViewName] = new QuickForm());
        const ctrlType = ctrl.getControlType();
        typeInfo.formControls[
          quickViewName
        ] = `${quickViewName}_quickformcontrol`;
        ctrl.getControl().forEach((subCtrl) => {
          if (typeof subCtrl.getAttribute !== "function") {
            return;
          }
          const subCtrlAttrType = subCtrl.getAttribute().getAttributeType();
          const mappedControlType =
            specificControlTypeMapping[subCtrlAttrType] ??
            controlTypeMapping[subCtrl.getControlType()];
          if (mappedControlType) {
            quickView.controls[subCtrl.getName()] = mappedControlType;
          }
        });
        ctrl.getAttribute().forEach((attr) => {
          const attrType = attr.getAttributeType();
          const attrName = attr.getName();
          const mappedType = attributeTypeMapping[attrType];
          if (mappedType) {
            quickView.attributes[attrName] = mappedType;
          }
          if (attrType === "optionset" && attr.controls.get().length > 0) {
            const enumValues = attr.getOptions();
            if (enumValues) {
              quickView.enums[attrName] = { attribute: "", values: [] };
              quickView.enums[attrName].values = enumValues;
              quickView.enums[attrName].attribute = attrName;
              quickView.attributes[attrName] = `${attrName}_attribute`;
            }
          }
        });
      });
    }

    // Build the TypeScript overload string.
    let outputTS = `// These TypeScript definitions were generated automatically on: ${new Date().toDateString()}\n`;
    for (const [originalEnumName, enumValues] of Object.entries(
      typeInfo.formEnums
    )) {
      if (typeInfo.possibleEnums.includes(originalEnumName)) {
        continue;
      }
      typeInfo.possibleEnums.push(originalEnumName);
      let enumName = `${originalEnumName}_enum`;
      let enumTemplate = [];
      let textLiteralTypes = [];
      let valueLiteralTypes = [];
      for (const enumValue of enumValues.values) {
        enumTemplate.push(
          `   ${enumValue.text.replace(/\W/g, "").replace(/[0-9]/g, "")} = ${
            enumValue.value
          }`
        );
        textLiteralTypes.push(`"${enumValue.text}"`);
        valueLiteralTypes.push(
          `${enumName}.${enumValue.text
            .replace(/\W/g, "")
            .replace(/[0-9]/g, "")}`
        );
      }
      outputTS += `
const enum ${enumName} {
${enumTemplate.join(",\n")}
}
`;
      outputTS += `
interface ${enumValues.attribute}_value extends Xrm.OptionSetValue {
text: ${textLiteralTypes.join(" | ")};
value: ${valueLiteralTypes.join(" | ")};  
}
`;
      outputTS += `
interface ${enumValues.attribute}_attribute extends Xrm.Attributes.OptionSetAttribute<${enumName}> {
   `
      valueLiteralTypes.forEach((value, index) => { 
        outputTS+= `getOption(value: ${value}): {text: ${textLiteralTypes[index]}, value: ${value}};\n`;
      })
  outputTS+=`getOption(value: ${enumValues.attribute}_value['value']): ${enumValues.attribute}_value | null;
  getOptions(): ${enumValues.attribute}_value[];
  getSelectedOption(): ${enumValues.attribute}_value | null;
  getValue(): ${enumName} | null;
  setValue(value: ${enumName} | null): void;
  getText(): ${enumValues.attribute}_value['text'] | null;
}
`;
    }
    for (let [subgridName, subgrid] of Object.entries(typeInfo.subGrids)) {
      subgridName = subgridName.replace(/\W/g, "");
      for (const [enumName, enumValues] of Object.entries(subgrid.enums)) {
        if (typeInfo.possibleEnums.includes(enumName)) {
          continue;
        }
        typeInfo.possibleEnums.push(enumName);
        let enumTemplate = [];
        let textLiteralTypes = [];
        let valueLiteralTypes = [];
        for (const enumValue of enumValues.values) {
          enumTemplate.push(
            `   ${enumValue.text.replace(/\W/g, "").replace(/[0-9]/g, "")} = ${
              enumValue.value
            }`
          );
          textLiteralTypes.push(`"${enumValue.text}"`);
          valueLiteralTypes.push(
            `${enumName}_enum.${enumValue.text
              .replace(/\W/g, "")
              .replace(/[0-9]/g, "")}`
          );
        }
        outputTS += `
const enum ${enumName}_enum {
${enumTemplate.join(",\n")}
}
`;
        outputTS += `
interface ${enumValues.attribute}_value extends Xrm.OptionSetValue {
text: ${textLiteralTypes.join(" | ")};
value: ${valueLiteralTypes.join(" | ")};
  }
`;
        outputTS += `
interface ${enumValues.attribute}_attribute extends Xrm.Attributes.OptionSetAttribute<${enumName}_enum> {
`
      valueLiteralTypes.forEach((value, index) => { 
        outputTS+= `getOption(value: ${value}): {text: ${textLiteralTypes[index]}, value: ${value}};\n`;
      })
  outputTS+=`
  getOption(value: ${enumValues.attribute}_value['value']): ${enumValues.attribute}_value | null;
  getOptions(): ${enumValues.attribute}_value[];
  getSelectedOption(): ${enumValues.attribute}_value | null;
  getValue(): ${enumName}_enum | null;
  setValue(value: ${enumName}_enum | null): void;
  getText(): ${enumValues.attribute}_value['text'] | null;
  }
  `;
      }

      outputTS += `
  interface ${subgridName}_attributes extends Xrm.Collection.ItemCollection<${new Set(
        Object.values(subgrid.attributes)
      )
        .map((attrType) => `${attrType}`)
        .join(" | ")}${Object.keys(subgrid.attributes).length === 0 ? "Xrm.Attributes.Attribute" : ""}> {`;
        for (const [attrType, attrNames] of Object.entries(
          groupItemsByType(subgrid.attributes)
        )) {
          outputTS += `get(itemName: "${attrNames.join("\" | \"")}"): ${attrType};\n`;
        }
      outputTS += `
      get(itemNameOrIndex: string | number): Xrm.Attributes.Attribute | null;
      }
  `;

      outputTS += `

  interface ${subgridName}_entity extends Xrm.Entity {
    attributes: ${subgridName}_attributes;
  }
  interface ${subgridName}_data extends Xrm.Data {
    entity: ${subgridName}_entity;
  }
  
  interface ${subgridName}_gridrow extends Xrm.Controls.Grid.GridRow {
    data: ${subgridName}_data;
  }
  
  interface ${subgridName}_grid extends Xrm.Controls.Grid {
    getRows(): Xrm.Collection.ItemCollection<${subgridName}_gridrow>;
  }
  
  interface ${subgridName}_gridcontrol extends Xrm.Controls.GridControl {
    getGrid(): ${subgridName}_grid;
  }
  interface ${subgridName}_context extends Xrm.FormContext {`;
  for (const [attrType, attrNames] of Object.entries(
    groupItemsByType(subgrid.attributes)
  )) {
    outputTS += `getAttribute(attributeName: "${attrNames.join("\" | \"")}"): ${attrType};\n`;
  }
    outputTS += `getAttribute(attributeNameOrIndex: string | number): ${subgridName}_attributes | null;`
      outputTS += `getAttribute(delegateFunction?): ${subgridName}_attributes[];`;
      outputTS += `
  }
  `;
      outputTS += `
  interface ${subgridName}_eventcontext extends Xrm.Events.EventContext {
    getFormContext(): ${subgridName}_context;
}`;
    }
    for (const [quickViewName, quickView] of Object.entries(
      typeInfo.quickViews
    )) {
      for (const [enumName, enumValues] of Object.entries(quickView.enums)) {
        if (typeInfo.possibleEnums.includes(enumName)) {
          continue;
        }
        typeInfo.possibleEnums.push(enumName);
        let enumTemplate = [];
        let textLiteralTypes = [];
        let valueLiteralTypes = [];
        for (const enumValue of enumValues.values) {
          enumTemplate.push(
            `   ${enumValue.text.replace(/\W/g, "").replace(/[0-9]/g, "")} = ${
              enumValue.value
            }`
          );
          textLiteralTypes.push(`"${enumValue.text}"`);
          valueLiteralTypes.push(
            `${enumName}_enum.${enumValue.text
              .replace(/\W/g, "")
              .replace(/[0-9]/g, "")}`
          );
        }
        outputTS += `
const enum ${enumName}_enum {
${enumTemplate.join(",\n")}
      }
`;
        outputTS += `
interface ${enumValues.attribute}_value extends Xrm.OptionSetValue {
text: ${textLiteralTypes.join(" | ")};
value: ${valueLiteralTypes.join(" | ")};
      }
`;
        outputTS += `
interface ${enumValues.attribute}_attribute extends Xrm.Attributes.OptionSetAttribute<${enumName}_enum> {
`
      valueLiteralTypes.forEach((value, index) => { 
        outputTS+= `getOption(value: ${value}): {text: ${textLiteralTypes[index]}, value: ${value}};\n`;
      })
  outputTS+=`
  getOption(value: ${enumValues.attribute}_value['value']): ${enumValues.attribute}_value | null;
  getOptions(): ${enumValues.attribute}_value[];
  getSelectedOption(): ${enumValues.attribute}_value | null;
  getValue(): ${enumName}_enum | null;
  setValue(value: ${enumName}_enum | null): void;
  getText(): ${enumValues.attribute}_value['text'] | null;
      }
  `;
      }
      outputTS += `type ${quickViewName}_controls_types = ${new Set(
        Object.values(quickView.controls)
      )
        .map((controlType) => `${controlType}`)
        .join(" | ")}${Object.keys(quickView.controls).length === 0 ? "Xrm.Controls.Control" : ""};\n`;
      outputTS += `
  type ${quickViewName}_attributes_types = ${new Set(
        Object.values(quickView.attributes)
      )
        .map((attrType) => `${attrType}`)
        .join(" | ")}${Object.keys(quickView.attributes).length === 0 ? "Xrm.Attributes.Attribute" : ""};\n`;
        outputTS += `type ${quickViewName}_controls_literals = ${new Set(
          Object.keys(quickView.controls)
        )
          .map((controlName) => `"${controlName}"`)
          .join(" | ")}${Object.keys(quickView.controls).length === 0 ? "\"\"" : ""};\n`;
        outputTS += `
    type ${quickViewName}_attributes_literals = ${new Set(
          Object.keys(quickView.attributes)
        )
          .map((attrName) => `"${attrName}"`)
          .join(" | ")}${Object.keys(quickView.attributes).length === 0 ? "\"\"" : ""};\n`;
      outputTS += `
  interface ${quickViewName}_quickformcontrol extends Xrm.Controls.QuickFormControl {
    `;
      for (const [controlType, controlNames] of Object.entries(
        groupItemsByType(quickView.controls)
      )) {
        outputTS += `getControl(controlName: "${controlNames.join("\" | \"")}"): ${controlType};\n`;
      }
      outputTS += `
    getControl(): ${quickViewName}_controls_types[]
    getControl(controlNameOrIndex: string | number): ${quickViewName}_controls_types | null;
    `;
    for (const [attrType, attrNames] of Object.entries(
      groupItemsByType(quickView.attributes)
    )) {
      outputTS += `getAttribute(attributeName: "${attrNames.join("\" | \"")}"): ${attrType};\n`;
    }
      outputTS += `
      getAttribute(attributeNameOrIndex: string | number): ${quickViewName}_attributes_types | null;
    getAttribute(): ${quickViewName}_attributes_types[];
  
  }`;
    }
    for (const [tabName, tab] of Object.entries(typeInfo.formTabs)) {
      outputTS += `
interface ${tabName}_sections extends Xrm.Collection.ItemCollection<Xrm.Controls.Section> {`;
        outputTS += `get(itemName:"${Object.keys(tab.sections).join("\" | \"")}"): Xrm.Controls.Section;\n`;
      
      outputTS += `}`;

      outputTS += `
interface ${tabName}_tab extends Xrm.Controls.Tab {
  sections: ${tabName}_sections;
    }`;
    }
    outputTS += `
interface ${currentFormName}_tabs extends Xrm.Collection.ItemCollection<${new Set(
      Object.keys(typeInfo.formTabs)
    )
      .map((tabName) => `${tabName}_tab`)
      .join(" | ")}> {`;
    for (const [itemName, itemType] of Object.entries(typeInfo.formTabs)) {
      outputTS += `get(itemName:"${itemName}"): ${itemName}_tab;\n`;
    }
    outputTS += `}`;
    outputTS += `
interface ${currentFormName}_quickforms extends Xrm.Collection.ItemCollection<${new Set(
      Object.keys(typeInfo.quickViews)
    )
      .map((quickViewName) => `${quickViewName}_quickformcontrol`)
      .join(" | ")}> {`;
    for (const [itemName, itemType] of Object.entries(typeInfo.quickViews)) {
      outputTS += `get(itemName:"${itemName}"): ${itemName}_quickformcontrol;\n`;
    }
    outputTS += `}`;
    outputTS += `
    type ${currentFormName}_attributes_types = ${new Set(
      Object.values(typeInfo.formAttributes)
    )
      .map((attrType) => `${attrType}`)
      .join(" | ")}\n`;
    outputTS += `
    type ${currentFormName}_attributes_literals = ${new Set(
      Object.keys(typeInfo.formAttributes)
    )
      .map((attrName) => `"${attrName}"`)
      .join(" | ")}\n`;
      
    outputTS += `
    type ${currentFormName}_controls_types = ${new Set(
      Object.values(typeInfo.formControls)
    )
      .map((ctrlType) => `${ctrlType}`)
      .join(" | ")}\n`
    outputTS += `
    type ${currentFormName}_controls_literals = ${new Set(
      Object.keys(typeInfo.formControls)
    )
      .map((ctrlName) => `"${ctrlName}"`)
      .join(" | ")}\n`;
    outputTS += `
    interface ${currentFormName}_ui extends Xrm.Ui {
      quickForms: ${currentFormName}_quickforms | null;
      tabs: ${currentFormName}_tabs;

    }
    `;
    outputTS += `
    interface ${currentFormName}_context extends Xrm.FormContext {
    ui: ${currentFormName}_ui;
  `;
  for (const [controlType, controlNames] of Object.entries(
    groupItemsByType(typeInfo.formControls)
  )) {
    outputTS += `getControl(controlName: "${controlNames.join("\" | \"")}"): ${controlType};\n`;
  }
    outputTS += `
    getControl(controlNameOrIndex: string | number): ${currentFormName}_controls_types | null;
    getControl(delegateFunction?): ${currentFormName}_controls_types[];
    `
    for (const [attrType, attrNames] of Object.entries(
      groupItemsByType(typeInfo.formAttributes)
    )) {
      outputTS += `getAttribute(attributeName: "${attrNames.join("\" | \"")}"): ${attrType};\n`;
    }
    outputTS += `
    getAttribute(attributeNameOrIndex: string | number): ${currentFormName}_attributes_types | null;
    getAttribute(delegateFunction?): ${currentFormName}_attributes_types[];
  }`;
    outputTS += `
  interface ${currentFormName}_eventcontext extends Xrm.Events.EventContext {
    getFormContext(): ${currentFormName}_context;
}`;

    // Create a new window with a textarea showing the output.
    // The textarea is set to readonly to prevent editing.
    const w = window.open(
      "",
      "_blank",
      "width=600,height=400,menubar=no,toolbar=no,location=no,resizable=yes"
    );
    if (w) {
      w.document.write(
        "<html><head><title>TypeScript Definitions</title></head><body>"
      );
      w.document.write(
        '<textarea readonly style="width:100%; height:90%;">' +
          outputTS +
          "</textarea>"
      );
      w.document.write("</body></html>");
      w.document.close();
    } else {
      // Fallback to prompt if popups are blocked.
      prompt("Copy the TypeScript definition:", outputTS);
    }
  });
})();