126 lines
3.6 KiB
JavaScript
126 lines
3.6 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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"use strict";
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const { TabUnloader } = ChromeUtils.importESModule(
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"moz-src:///browser/components/tabbrowser/TabUnloader.sys.mjs"
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);
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async function refreshData() {
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const sortedTabs = await TabUnloader.getSortedTabs(null);
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const tabTable = document.querySelector(".tab-table > tbody");
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const getHost = uri => {
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try {
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return uri?.host;
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} catch (e) {
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return uri?.spec;
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}
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};
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const updateTimestamp = () => {
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document.l10n.setAttributes(
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document.getElementById("label-last-updated"),
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"about-unloads-last-updated",
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{ date: Date.now() }
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);
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};
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// Reset the table
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// Don't delete the first row showing the "no unloadable tab" message
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while (tabTable.rows.length > 1) {
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tabTable.deleteRow(1);
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}
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if (!sortedTabs.length) {
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document.getElementById("button-unload").disabled = true;
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document.getElementById("no-unloadable-tab-message").hidden = false;
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updateTimestamp();
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return;
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}
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document.getElementById("button-unload").disabled =
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!TabUnloader.isDiscardable(sortedTabs[0]);
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document.getElementById("no-unloadable-tab-message").hidden = true;
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const fragmentRows = new DocumentFragment();
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const templateRow = document.querySelector("template[name=tab-table-row]");
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let ordinal = 0;
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for (const tabInfo of sortedTabs) {
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if (!("tab" in tabInfo)) {
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continue;
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}
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const fragment = templateRow.content.cloneNode(true);
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const row = fragment.querySelector("tr");
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row.children[0].textContent = TabUnloader.isDiscardable(tabInfo)
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? ++ordinal
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: "-";
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row.children[1].textContent = getHost(
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tabInfo.tab?.linkedBrowser?.currentURI
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);
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if ("lastAccessed" in tabInfo.tab) {
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document.l10n.setAttributes(
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row.children[2],
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"about-unloads-last-accessed",
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{ date: tabInfo.tab.lastAccessed }
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);
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}
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row.children[3].textContent = tabInfo.weight;
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row.children[4].textContent = tabInfo.sortWeight;
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if ("memory" in tabInfo) {
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document.l10n.setAttributes(
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row.children[5],
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"about-unloads-memory-in-mb",
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{ mem: tabInfo.memory / 1024 / 1024 }
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);
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}
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if (tabInfo.processes) {
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for (const [pid, procEntry] of tabInfo.processes) {
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if (pid < 0) {
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// Tab is hosted by the main process
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continue;
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}
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const procLabel = document.createElement("span");
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const procInfo = procEntry.entryToProcessMap;
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if (procEntry.isTopLevel) {
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procLabel.classList.add("top-level-process");
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}
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if (procInfo.tabSet.size > 1) {
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procLabel.classList.add("shared-process");
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}
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procLabel.textContent = pid;
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document.l10n.setAttributes(
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procLabel,
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"about-unloads-memory-in-mb-tooltip",
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{ mem: procInfo.memory / 1024 / 1024 }
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);
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row.children[6].appendChild(procLabel);
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row.children[6].appendChild(document.createTextNode(" "));
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}
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}
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fragmentRows.appendChild(fragment);
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}
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tabTable.appendChild(fragmentRows);
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updateTimestamp();
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}
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async function onLoad() {
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document
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.getElementById("button-unload")
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.addEventListener("click", async () => {
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await TabUnloader.unloadLeastRecentlyUsedTab(null);
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await refreshData();
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});
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await refreshData();
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}
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try {
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document.addEventListener("DOMContentLoaded", onLoad, { once: true });
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} catch (ex) {
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console.error(ex);
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}
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