1 files changed, 283 insertions, 0 deletions
diff --git a/browser/extensions/webcompat/about-compat/aboutCompat.js b/browser/extensions/webcompat/about-compat/aboutCompat.js
new file mode 100644
index 0000000000..33fab2455a
--- /dev/null
+++ b/browser/extensions/webcompat/about-compat/aboutCompat.js
@@ -0,0 +1,283 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+/* globals browser */
+
+let availablePatches;
+
+const portToAddon = (function() {
+  let port;
+
+  function connect() {
+    port = browser.runtime.connect({ name: "AboutCompatTab" });
+    port.onMessage.addListener(onMessageFromAddon);
+    port.onDisconnect.addListener(e => {
+      port = undefined;
+    });
+  }
+
+  connect();
+
+  async function send(message) {
+    if (port) {
+      return port.postMessage(message);
+    }
+    return Promise.reject("background script port disconnected");
+  }
+
+  return { send };
+})();
+
+const $ = function(sel) {
+  return document.querySelector(sel);
+};
+
+const DOMContentLoadedPromise = new Promise(resolve => {
+  document.addEventListener(
+    "DOMContentLoaded",
+    () => {
+      resolve();
+    },
+    { once: true }
+  );
+});
+
+Promise.all([
+  browser.runtime.sendMessage("getAllInterventions"),
+  DOMContentLoadedPromise,
+]).then(([info]) => {
+  document.body.addEventListener("click", async evt => {
+    const ele = evt.target;
+    if (ele.nodeName === "BUTTON") {
+      const row = ele.closest("[data-id]");
+      if (row) {
+        evt.preventDefault();
+        ele.disabled = true;
+        const id = row.getAttribute("data-id");
+        try {
+          await browser.runtime.sendMessage({ command: "toggle", id });
+        } catch (_) {
+          ele.disabled = false;
+        }
+      }
+    } else if (ele.classList.contains("tab")) {
+      document.querySelectorAll(".tab").forEach(tab => {
+        tab.classList.remove("active");
+      });
+      ele.classList.add("active");
+    }
+  });
+
+  availablePatches = info;
+  redraw();
+});
+
+function onMessageFromAddon(msg) {
+  const alsoShowHidden = location.hash === "#all";
+
+  if ("interventionsChanged" in msg) {
+    redrawTable($("#interventions"), msg.interventionsChanged, alsoShowHidden);
+  }
+
+  if ("overridesChanged" in msg) {
+    redrawTable($("#overrides"), msg.overridesChanged, alsoShowHidden);
+  }
+
+  if ("shimsChanged" in msg) {
+    updateShimTables(msg.shimsChanged, alsoShowHidden);
+  }
+
+  const id = msg.toggling || msg.toggled;
+  const button = $(`[data-id="${id}"] button`);
+  if (!button) {
+    return;
+  }
+  const active = msg.active;
+  document.l10n.setAttributes(
+    button,
+    active ? "label-disable" : "label-enable"
+  );
+  button.disabled = !!msg.toggling;
+}
+
+function redraw() {
+  if (!availablePatches) {
+    return;
+  }
+  const { overrides, interventions, shims } = availablePatches;
+  const alsoShowHidden = location.hash === "#all";
+  redrawTable($("#overrides"), overrides, alsoShowHidden);
+  redrawTable($("#interventions"), interventions, alsoShowHidden);
+  updateShimTables(shims, alsoShowHidden);
+}
+
+function clearTableAndAddMessage(table, msgId) {
+  table.querySelectorAll("tr").forEach(tr => {
+    tr.remove();
+  });
+
+  const tr = document.createElement("tr");
+  tr.className = "message";
+  tr.id = msgId;
+
+  const td = document.createElement("td");
+  td.setAttribute("colspan", "3");
+  document.l10n.setAttributes(td, msgId);
+  tr.appendChild(td);
+
+  table.appendChild(tr);
+}
+
+function hideMessagesOnTable(table) {
+  table.querySelectorAll("tr.message").forEach(tr => {
+    tr.remove();
+  });
+}
+
+function updateShimTables(shimsChanged, alsoShowHidden) {
+  const tables = document.querySelectorAll("table.shims");
+  if (!tables.length) {
+    return;
+  }
+
+  for (const { bug, disabledReason, hidden, id, name, type } of shimsChanged) {
+    // if any shim is disabled by global pref, all of them are. just show the
+    // "disabled in about:config" message on each shim table in that case.
+    if (disabledReason === "globalPref") {
+      for (const table of tables) {
+        clearTableAndAddMessage(table, "text-disabled-in-about-config");
+      }
+      return;
+    }
+
+    // otherwise, find which table the shim belongs in. if there is none,
+    // ignore the shim (we're not showing it on the UI for whatever reason).
+    const table = document.querySelector(`table.shims#${type}`);
+    if (!table) {
+      continue;
+    }
+
+    // similarly, skip shims hidden from the UI (only for testing, etc).
+    if (!alsoShowHidden && hidden) {
+      continue;
+    }
+
+    // also, hide the shim if it is disabled because it is not meant for this
+    // platform, release (etc) rather than being disabled by pref/about:compat
+    const notApplicable =
+      disabledReason &&
+      disabledReason !== "pref" &&
+      disabledReason !== "session";
+    if (!alsoShowHidden && notApplicable) {
+      continue;
+    }
+
+    // create an updated table-row for the shim
+    const tr = document.createElement("tr");
+    tr.setAttribute("data-id", id);
+
+    let td = document.createElement("td");
+    td.innerText = name;
+    tr.appendChild(td);
+
+    td = document.createElement("td");
+    const a = document.createElement("a");
+    a.href = `https://bugzilla.mozilla.org/show_bug.cgi?id=${bug}`;
+    document.l10n.setAttributes(a, "label-more-information", { bug });
+    a.target = "_blank";
+    td.appendChild(a);
+    tr.appendChild(td);
+
+    td = document.createElement("td");
+    tr.appendChild(td);
+    const button = document.createElement("button");
+    document.l10n.setAttributes(
+      button,
+      disabledReason ? "label-enable" : "label-disable"
+    );
+    td.appendChild(button);
+
+    // is it already in the table?
+    const row = table.querySelector(`tr[data-id="${id}"]`);
+    if (row) {
+      row.replaceWith(tr);
+    } else {
+      table.appendChild(tr);
+    }
+  }
+
+  for (const table of tables) {
+    if (!table.querySelector("tr:not(.message)")) {
+      // no shims? then add a message that none are available for this platform/config
+      clearTableAndAddMessage(table, `text-no-${table.id}`);
+    } else {
+      // otherwise hide any such message, since we have shims on the list
+      hideMessagesOnTable(table);
+    }
+  }
+}
+
+function redrawTable(table, data, alsoShowHidden) {
+  const df = document.createDocumentFragment();
+  table.querySelectorAll("tr").forEach(tr => {
+    tr.remove();
+  });
+
+  let noEntriesMessage;
+  if (data === false) {
+    noEntriesMessage = "text-disabled-in-about-config";
+  } else if (data.length === 0) {
+    noEntriesMessage = `text-no-${table.id}`;
+  }
+
+  if (noEntriesMessage) {
+    const tr = document.createElement("tr");
+    df.appendChild(tr);
+
+    const td = document.createElement("td");
+    td.setAttribute("colspan", "3");
+    document.l10n.setAttributes(td, noEntriesMessage);
+    tr.appendChild(td);
+
+    table.appendChild(df);
+    return;
+  }
+
+  for (const row of data) {
+    if (row.hidden && !alsoShowHidden) {
+      continue;
+    }
+
+    const tr = document.createElement("tr");
+    tr.setAttribute("data-id", row.id);
+    df.appendChild(tr);
+
+    let td = document.createElement("td");
+    td.innerText = row.domain;
+    tr.appendChild(td);
+
+    td = document.createElement("td");
+    const a = document.createElement("a");
+    const bug = row.bug;
+    a.href = `https://bugzilla.mozilla.org/show_bug.cgi?id=${bug}`;
+    document.l10n.setAttributes(a, "label-more-information", { bug });
+    a.target = "_blank";
+    td.appendChild(a);
+    tr.appendChild(td);
+
+    td = document.createElement("td");
+    tr.appendChild(td);
+    const button = document.createElement("button");
+    document.l10n.setAttributes(
+      button,
+      row.active ? "label-disable" : "label-enable"
+    );
+    td.appendChild(button);
+  }
+  table.appendChild(df);
+}
+
+window.onhashchange = redraw;