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asan-js
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async/await

master
Charles Iliya Krempeaux 2023-11-16 05:29:06 -08:00
parent 372f1624f3
commit faed3b4c90
1 changed files with 60 additions and 37 deletions
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97
asan.js
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@ -42,11 +42,11 @@ THE SOFTWARE.
// It then fetches the HTML from the 'src' path.
// It then includes the HTML it fetched from the 'src' path here into the 'dst'.
// It then sets the title of the page to the inner-text for the first <h1> from the 'src'.
export function include(element) {
export async function include(element) {
log("begin")
if (undefined === element) {
log("element is undefined")
logerror("element is undefined")
log("end")
return
}
@ -54,45 +54,25 @@ export function include(element) {
let dst = window.location.pathname
let src = "/src" + dst
log("dst-path: ", dst)
log("src-path: ", src)
log("dst-path:", JSON.stringify(dst))
log("src-path:", JSON.stringify(src))
fetch(src).
then( response => {
if (!response.ok) {
element.innerHTML = '<article><h1>Not Found</h1></article>'
throw new Error('network response was not ok')
}
const response = await fetch(src)
if (!response.ok) {
element.innerHTML = '<article><h1>Not Found</h1></article>'
logerror("src file not found")
log("end")
throw new Error('network response was not ok')
}
log("src file found")
log("src found")
return response.text()
}).
then( text => {
element.innerHTML = text
const text = await response.text()
return text
}).
then( () => {
// include the src file
setInnerHTML(element, text)
// Set the title of the page to the value of the first <h1> (if there is an <h1>).
const h1s = element.getElementsByTagName("h1")
if (undefined === h1s || element.length <= 0) {
return
}
const h1 = h1s[0]
const titles = document.getElementsByTagName("title")
if (undefined === titles || titles.length <= 0) {
return
}
const title = titles[0]
const titleText = h1.innerText
console.log("[dst] title-text: ", titleText)
title.innerText = titleText
});
// Set the title of the page to the value of the first <h1> (if there is an <h1>).
setTitle(element)
log("end")
}
@ -101,3 +81,46 @@ function log(...args) {
args.unshift("[asan][include]");
console.log(...args);
}
function logerror(...args) {
args.unshift("[asan][include] ERROR:");
console.error(...args);
}
function setInnerHTML(element, text) {
if (undefined === element) {
logerror("element is undefined")
return
}
element.innerHTML = text
log("src file included")
}
function setTitle(element) {
if (undefined === element) {
logerror("element is undefined")
return
}
const h1s = element.getElementsByTagName("h1")
if (undefined === h1s || element.length <= 0) {
logerror("<h1>s is undefined")
return
}
const h1 = h1s[0]
log("src file has at least 1 <h1> element — will set the same value of <title> to the same value of this first <h1>")
const titleText = h1.innerText
log("first <h1>'s value:", JSON.stringify(titleText))
const titles = document.getElementsByTagName("title")
if (undefined === titles || titles.length <= 0) {
logerror("<title>s is undefined")
return
}
const title = titles[0]
title.innerText = titleText
log("value of <title> set to value of first <h1> in included src file")
}