Bug 1499236 - remove customizableui menubar binding, r=Felipe

Differential Revision: https://phabricator.services.mozilla.com/D8901

browser/base/content/browser-customization.js

@@ -66,3 +66,115 @@ var CustomizationHandler = {
     gBrowser.selectedBrowser.focus();
   },
 };
+
+var AutoHideMenubar = {
+  get _node() {
+    delete this._node;
+    return this._node = document.getElementById("toolbar-menubar");
+  },
+
+  _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);
+    if (this._node.getAttribute("autohide") == "true") {
+      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");
+  },
+};