Haketilo

/**

 * Myext handling of page actions in content scripts

 *

 * Copyright (C) 2021 Wojtek Kosior

 * Redistribution terms are gathered in the `copyright' file.

 */

/*

 * IMPORTS_START

 * IMPORT browser

 * IMPORT report_script

 * IMPORT report_settings

 * IMPORTS_END

 */

var port;

var loaded = false;

var scripts_awaiting = [];

var nonce;

function handle_message(message)

{

    const [action, data] = message;

    if (action === "inject") {

	for (let script_text of data) {

	    if (loaded)

		add_script(script_text);

	    else

		scripts_awaiting.push(script_text);

	}

    }

    if (action === "settings")

	report_settings(data);

}

function document_loaded(event)

{

    loaded = true;

    for (let script_text of scripts_awaiting)

	add_script(script_text);

    scripts_awaiting = undefined;

}

function add_script(script_text)

{

    let script = document.createElement("script");

    script.textContent = script_text;

    script.setAttribute("nonce", nonce);

    document.body.appendChild(script);

    report_script(script_text);

}

function handle_page_actions(script_nonce, port) { // Add port as an argument so we can "pre-receive" a nonce in main.js

    document.addEventListener("DOMContentLoaded", document_loaded);

    port.onMessage.addListener(handle_message);

    port.postMessage({url: document.URL});

    nonce = script_nonce;

}

/*

 * EXPORTS_START

 * EXPORT handle_page_actions

 * EXPORTS_END

 */