106 lines
3.3 KiB
JavaScript
106 lines
3.3 KiB
JavaScript
'use strict';
|
|
|
|
// eslint-disable-next-line no-unused-expressions
|
|
self.INJECTED !== 1 && (() => {
|
|
|
|
// this part runs in workers, content scripts, our extension pages
|
|
|
|
if (!Object.entries) {
|
|
Object.entries = obj => Object.keys(obj).map(k => [k, obj[k]]);
|
|
}
|
|
if (!Object.values) {
|
|
Object.values = obj => Object.keys(obj).map(k => obj[k]);
|
|
}
|
|
|
|
if (!self.chrome) return;
|
|
// the rest is for content scripts and our extension pages
|
|
|
|
self.promisifyChrome = definitions => {
|
|
// a web page may have <html id="browser"> which creates a global variable `browser` pointing to this element
|
|
if (!self.browser || !self.browser.runtime && !self.browser.promisifyChrome) {
|
|
self.browser = Object.defineProperty({}, 'promisifyChrome', {value: true});
|
|
}
|
|
for (const [scopeName, methods] of Object.entries(definitions)) {
|
|
const path = scopeName.split('.');
|
|
const src = path.reduce((obj, p) => obj && obj[p], chrome);
|
|
if (!src) continue;
|
|
const dst = path.reduce((obj, p) => obj[p] || (obj[p] = {}), browser);
|
|
for (const name of methods) {
|
|
const fn = src[name];
|
|
if (!fn || dst[name]) continue;
|
|
dst[name] = (...args) => new Promise((resolve, reject) =>
|
|
fn.call(src, ...args, (...results) =>
|
|
chrome.runtime.lastError ?
|
|
reject(chrome.runtime.lastError) :
|
|
resolve(results.length <= 1 ? results[0] : results)));
|
|
// a couple of callbacks have 2 parameters (we don't use those methods, but just in case)
|
|
}
|
|
}
|
|
};
|
|
|
|
if (!chrome.tabs) return;
|
|
// the rest is for our extension pages
|
|
|
|
if (typeof document === 'object') {
|
|
const ELEMENT_METH = {
|
|
append: {
|
|
base: [Element, Document, DocumentFragment],
|
|
fn: (node, frag) => {
|
|
node.appendChild(frag);
|
|
}
|
|
},
|
|
prepend: {
|
|
base: [Element, Document, DocumentFragment],
|
|
fn: (node, frag) => {
|
|
node.insertBefore(frag, node.firstChild);
|
|
}
|
|
},
|
|
before: {
|
|
base: [Element, CharacterData, DocumentType],
|
|
fn: (node, frag) => {
|
|
node.parentNode.insertBefore(frag, node);
|
|
}
|
|
},
|
|
after: {
|
|
base: [Element, CharacterData, DocumentType],
|
|
fn: (node, frag) => {
|
|
node.parentNode.insertBefore(frag, node.nextSibling);
|
|
}
|
|
}
|
|
};
|
|
|
|
for (const [key, {base, fn}] of Object.entries(ELEMENT_METH)) {
|
|
for (const cls of base) {
|
|
if (cls.prototype[key]) {
|
|
continue;
|
|
}
|
|
cls.prototype[key] = function (...nodes) {
|
|
const frag = document.createDocumentFragment();
|
|
for (const node of nodes) {
|
|
frag.appendChild(typeof node === 'string' ? document.createTextNode(node) : node);
|
|
}
|
|
fn(this, frag);
|
|
};
|
|
}
|
|
}
|
|
}
|
|
try {
|
|
if (!localStorage) {
|
|
throw new Error('localStorage is null');
|
|
}
|
|
localStorage._access_check = 1;
|
|
delete localStorage._access_check;
|
|
} catch (err) {
|
|
Object.defineProperty(self, 'localStorage', {value: {}});
|
|
}
|
|
try {
|
|
if (!sessionStorage) {
|
|
throw new Error('sessionStorage is null');
|
|
}
|
|
sessionStorage._access_check = 1;
|
|
delete sessionStorage._access_check;
|
|
} catch (err) {
|
|
Object.defineProperty(self, 'sessionStorage', {value: {}});
|
|
}
|
|
})();
|