77 lines
2.3 KiB
JavaScript
77 lines
2.3 KiB
JavaScript
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/**
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* Simple local webpage content editing extension that allows in-browser edition and HTML export
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* Copyright (c) Ad5001 2023
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*
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**/
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const exportTabHTMLToLink = () => {
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let fullHTML = document.body.parentNode.outerHTML
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return {
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link: 'data:text/plain;charset=utf-8,' + encodeURIComponent(fullHTML),
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name: 'export-' + location.hostname + location.pathname.replaceAll('/', '-') + '.html'
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}
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}
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const enableEdition = () => {
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document.body.contentEditable = true
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}
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const disableEdition = () => {
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document.body.contentEditable = false
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}
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const queryEditionStatus = () => {
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return document.body.contentEditable == "true"
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}
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async function execute(func, tabId) {
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let tabs = await browser.tabs.query({currentWindow: true, active: true})
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return await browser.scripting.executeScript({
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func: func,
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target: {
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tabId: tabs[0].id
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}
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}).then((results) => results[0].result)
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}
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// Message listener from browser scripts.
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function receiveMessage(message, sender, sendResponse) {
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if(!message.request) {
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console.error(`Couldn't parse message ${JSON.stringify(message)}. No 'request' field.`)
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return false // Silently error
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}
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let ret = true
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switch(message.request) {
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case 'start-editing':
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ret = execute(enableEdition)
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break
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case 'end-editing':
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ret = execute(disableEdition)
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break
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case 'export-html':
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ret = execute(exportTabHTMLToLink)
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break
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case 'query-current-tab-edition-status':
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ret = execute(queryEditionStatus)
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break
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}
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return ret
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}
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browser.runtime.onMessage.addListener(receiveMessage);
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