[REF] initial prototype of owl 2

src/utils.ts

@@ -1,103 +0,0 @@
-/**
- * Owl Utils
- *
- * We have here a small collection of utility functions:
- *
- * - whenReady
- * - loadJS
- * - loadFile
- * - escape
- * - debounce
- */
-
-import { browser } from "./browser";
-
-export function whenReady(fn?: any) {
-  return new Promise(function (resolve) {
-    if (document.readyState !== "loading") {
-      resolve();
-    } else {
-      document.addEventListener("DOMContentLoaded", resolve, false);
-    }
-  }).then(fn || function () {});
-}
-
-const loadedScripts: { [key: string]: Promise<void> } = {};
-
-export function loadJS(url: string): Promise<void> {
-  if (url in loadedScripts) {
-    return loadedScripts[url];
-  }
-  const promise: Promise<void> = new Promise(function (resolve, reject) {
-    const script = document.createElement("script");
-    script.type = "text/javascript";
-    script.src = url;
-    script.onload = function () {
-      resolve();
-    };
-    script.onerror = function () {
-      reject(`Error loading file '${url}'`);
-    };
-    const head = document.head || document.getElementsByTagName("head")[0];
-    head.appendChild(script);
-  });
-  loadedScripts[url] = promise;
-  return promise;
-}
-
-export async function loadFile(url: string): Promise<string> {
-  const result = await browser.fetch(url);
-  if (!result.ok) {
-    throw new Error("Error while fetching xml templates");
-  }
-  return await result.text();
-}
-
-export function escape(str: string | number | undefined): string {
-  if (str === undefined) {
-    return "";
-  }
-  if (typeof str === "number") {
-    return String(str);
-  }
-  const p = document.createElement("p");
-  p.textContent = str;
-  return p.innerHTML;
-}
-
-/**
- * Returns a function, that, as long as it continues to be invoked, will not
- * be triggered. The function will be called after it stops being called for
- * N milliseconds. If `immediate` is passed, trigger the function on the
- * leading edge, instead of the trailing.
- *
- * Inspired by https://davidwalsh.name/javascript-debounce-function
- */
-export function debounce(func: Function, wait: number, immediate?: boolean): Function {
-  let timeout;
-  return function (this: any) {
-    const context = this;
-    const args = arguments;
-    function later() {
-      timeout = null;
-      if (!immediate) {
-        func.apply(context, args);
-      }
-    }
-    const callNow = immediate && !timeout;
-    browser.clearTimeout(timeout);
-    timeout = browser.setTimeout(later, wait);
-    if (callNow) {
-      func.apply(context, args);
-    }
-  };
-}
-
-export function shallowEqual(p1, p2): boolean {
-  for (let k in p1) {
-    if (p1[k] !== p2[k]) {
-      return false;
-    }
-  }
-  return true;
-}