1 files changed, 185 insertions, 0 deletions
diff --git a/comm/mail/base/content/messenger-customization.js b/comm/mail/base/content/messenger-customization.js
new file mode 100644
index 0000000000..bf6fc46834
--- /dev/null
+++ b/comm/mail/base/content/messenger-customization.js
@@ -0,0 +1,185 @@
+/**
+ * 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/. */
+
+var { AddonManager } = ChromeUtils.importESModule(
+  "resource://gre/modules/AddonManager.sys.mjs"
+);
+
+var AutoHideMenubar = {
+  get _node() {
+    delete this._node;
+    return (this._node =
+      document.getElementById("toolbar-menubar") ||
+      document.getElementById("compose-toolbar-menubar2") ||
+      document.getElementById("addrbook-toolbar-menubar2"));
+  },
+
+  _contextMenuListener: {
+    contextMenu: null,
+
+    get active() {
+      return !!this.contextMenu;
+    },
+
+    init(event) {
+      // Ignore mousedowns in <menupopup>s.
+      if (event.target.closest("menupopup")) {
+        return;
+      }
+
+      let contextMenuId = AutoHideMenubar._node.getAttribute("context");
+      this.contextMenu = document.getElementById(contextMenuId);
+      this.contextMenu.addEventListener("popupshown", this);
+      this.contextMenu.addEventListener("popuphiding", this);
+      AutoHideMenubar._node.addEventListener("mousemove", this);
+    },
+
+    handleEvent(event) {
+      switch (event.type) {
+        case "popupshown":
+          AutoHideMenubar._node.removeEventListener("mousemove", this);
+          break;
+        case "popuphiding":
+        case "mousemove":
+          AutoHideMenubar._setInactiveAsync();
+          AutoHideMenubar._node.removeEventListener("mousemove", this);
+          this.contextMenu.removeEventListener("popuphiding", this);
+          this.contextMenu.removeEventListener("popupshown", this);
+          this.contextMenu = null;
+          break;
+      }
+    },
+  },
+
+  init() {
+    this._node.addEventListener("toolbarvisibilitychange", this);
+    this._enable();
+  },
+
+  _updateState() {
+    if (this._node.getAttribute("autohide") == "true") {
+      this._enable();
+    } else {
+      this._disable();
+    }
+  },
+
+  _events: [
+    "DOMMenuBarInactive",
+    "DOMMenuBarActive",
+    "popupshowing",
+    "mousedown",
+  ],
+  _enable() {
+    this._node.setAttribute("inactive", "true");
+    for (let event of this._events) {
+      this._node.addEventListener(event, this);
+    }
+  },
+
+  _disable() {
+    this._setActive();
+    for (let event of this._events) {
+      this._node.removeEventListener(event, this);
+    }
+  },
+
+  handleEvent(event) {
+    switch (event.type) {
+      case "toolbarvisibilitychange":
+        this._updateState();
+        break;
+      case "popupshowing":
+      // fall through
+      case "DOMMenuBarActive":
+        this._setActive();
+        break;
+      case "mousedown":
+        if (event.button == 2) {
+          this._contextMenuListener.init(event);
+        }
+        break;
+      case "DOMMenuBarInactive":
+        if (!this._contextMenuListener.active) {
+          this._setInactiveAsync();
+        }
+        break;
+    }
+  },
+
+  _setInactiveAsync() {
+    this._inactiveTimeout = setTimeout(() => {
+      if (this._node.getAttribute("autohide") == "true") {
+        this._inactiveTimeout = null;
+        this._node.setAttribute("inactive", "true");
+      }
+    }, 0);
+  },
+
+  _setActive() {
+    if (this._inactiveTimeout) {
+      clearTimeout(this._inactiveTimeout);
+      this._inactiveTimeout = null;
+    }
+    this._node.removeAttribute("inactive");
+  },
+};
+
+var ToolbarContextMenu = {
+  _getExtensionId(popup) {
+    let node = popup.triggerNode;
+    if (!node) {
+      return null;
+    }
+    if (node.hasAttribute("data-extensionid")) {
+      return node.getAttribute("data-extensionid");
+    }
+    const extensionButton = node.closest('[item-id^="ext-"]');
+    return extensionButton?.getAttribute("item-id").slice(4);
+  },
+
+  async updateExtension(popup) {
+    let removeExtension = popup.querySelector(
+      ".customize-context-removeExtension"
+    );
+    let manageExtension = popup.querySelector(
+      ".customize-context-manageExtension"
+    );
+    let separator = popup.querySelector("#extensionsMailToolbarMenuSeparator");
+    let id = this._getExtensionId(popup);
+    let addon = id && (await AddonManager.getAddonByID(id));
+
+    for (let element of [removeExtension, manageExtension, separator]) {
+      if (!element) {
+        continue;
+      }
+
+      element.hidden = !addon;
+    }
+
+    if (addon) {
+      removeExtension.disabled = !(
+        addon.permissions & AddonManager.PERM_CAN_UNINSTALL
+      );
+    }
+  },
+
+  async removeExtensionForContextAction(popup) {
+    let id = this._getExtensionId(popup);
+
+    // This can be called from a composeAction button, where
+    // popup.ownerGlobal.BrowserAddonUI is undefined.
+    let win = Services.wm.getMostRecentWindow("mail:3pane");
+    await win.BrowserAddonUI.removeAddon(id);
+  },
+
+  openAboutAddonsForContextAction(popup) {
+    let id = this._getExtensionId(popup);
+    if (id) {
+      let viewID = "addons://detail/" + encodeURIComponent(id);
+      popup.ownerGlobal.openAddonsMgr(viewID);
+    }
+  },
+};