Bug 1686929 - only show the inspect a11y properties menuitem for devtools users, r=jdescottes

Differential Revision: https://phabricator.services.mozilla.com/D105086

browser/base/content/nsContextMenu.js

@@ -620,10 +620,12 @@ class nsContextMenu {
     var showInspectA11Y =
       showInspect &&
       Services.prefs.getBoolPref("devtools.accessibility.enabled", false) &&
-      this.inTabBrowser &&
       Services.prefs.getBoolPref("devtools.enabled", true) &&
-      Services.prefs.getBoolPref("devtools.accessibility.enabled", true) &&
-      !Services.prefs.getBoolPref("devtools.policy.disabled", false);
+      (Services.prefs.getBoolPref("devtools.everOpened", false) ||
+        // Note: this is a legacy usecase, we will remove it in bug 1695257,
+        // once existing users have had time to set devtools.everOpened
+        // through normal use, and we've passed an ESR cycle (91).
+        nsContextMenu.DevToolsShim.isDevToolsUser());
 
     this.showItem("context-viewsource", shouldShow);
     this.showItem("inspect-separator", showInspect);

browser/base/content/test/contextMenu/browser.ini

@@ -15,6 +15,7 @@ support-files =
   ../../../../../toolkit/components/pdfjs/test/file_pdfjs_test.pdf
   contextmenu_common.js
 
+[browser_contextmenu_inspect.js]
 [browser_contextmenu_keyword.js]
 skip-if = toolkit == "gtk" || (os == "win" && processor == "aarch64") # disabled on Linux due to bug 513558, aarch64 due to 1533161
 [browser_contextmenu_loadblobinnewtab.js]

browser/base/content/test/contextMenu/browser_contextmenu_inspect.js

@@ -0,0 +1,61 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+/**
+ * Check that we show the inspect item(s) as appropriate.
+ */
+add_task(async function test_contextmenu_inspect() {
+  await SpecialPowers.pushPrefEnv({
+    set: [
+      ["devtools.selfxss.count", 0],
+      ["devtools.everOpened", false],
+    ],
+  });
+  let contextMenu = document.getElementById("contentAreaContextMenu");
+  await BrowserTestUtils.withNewTab("about:blank", async browser => {
+    for (let [pref, value, expectation] of [
+      ["devtools.selfxss.count", 10, true],
+      ["devtools.selfxss.count", 0, false],
+      ["devtools.everOpened", false, false],
+      ["devtools.everOpened", true, true],
+    ]) {
+      await SpecialPowers.pushPrefEnv({
+        set: [["devtools.selfxss.count", value]],
+      });
+      is(contextMenu.state, "closed", "checking if popup is closed");
+      let promisePopupShown = BrowserTestUtils.waitForEvent(
+        contextMenu,
+        "popupshown"
+      );
+      let promisePopupHidden = BrowserTestUtils.waitForEvent(
+        contextMenu,
+        "popuphidden"
+      );
+      await BrowserTestUtils.synthesizeMouse(
+        "body",
+        2,
+        2,
+        { type: "contextmenu", button: 2 },
+        browser
+      );
+      await promisePopupShown;
+      let inspectItem = document.getElementById("context-inspect");
+      ok(
+        !inspectItem.hidden,
+        `Inspect should be shown (pref ${pref} is ${value}).`
+      );
+      let inspectA11y = document.getElementById("context-inspect-a11y");
+      is(
+        inspectA11y.hidden,
+        !expectation,
+        `A11y should be ${
+          expectation ? "visible" : "hidden"
+        } (pref ${pref} is ${value}).`
+      );
+      contextMenu.hidePopup();
+      await promisePopupHidden;
+    }
+  });
+});

devtools/client/framework/toolbox.js

@@ -1422,6 +1422,7 @@ Toolbox.prototype = {
   },
 
   _pingTelemetry: function() {
+    Services.prefs.setBoolPref("devtools.everOpened", true);
     this.telemetry.toolOpened("toolbox", this.sessionId, this);
 
     this.telemetry

devtools/startup/DevToolsShim.jsm

@@ -191,6 +191,10 @@ const DevToolsShim = {
     this._gDevTools.restoreDevToolsSession(session);
   },
 
+  isDevToolsUser() {
+    return DevtoolsStartup.isDevToolsUser();
+  },
+
   /**
    * Called from nsContextMenu.js in mozilla-central when using the Inspect Accessibility
    * context menu item.