Bug 897960 - walker should support mozbrowser iframes. r=dcamp

browser/devtools/shared/helpers.js

@@ -0,0 +1,72 @@
+/* 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/. */
+
+const {Cu} = require("chrome");
+Cu.import("resource://gre/modules/Services.jsm");
+
+let { XPCOMUtils } = Cu.import("resource://gre/modules/XPCOMUtils.jsm", {});
+XPCOMUtils.defineLazyGetter(this, "PlatformKeys", function() {
+  return Services.strings.createBundle(
+    "chrome://global-platform/locale/platformKeys.properties");
+});
+
+/**
+  * Prettifies the modifier keys for an element.
+  *
+  * @param Node aElemKey
+  *        The key element to get the modifiers from.
+  * @param boolean aAllowCloverleaf
+  *        Pass true to use the cloverleaf symbol instead of a descriptive string.
+  * @return string
+  *         A prettified and properly separated modifier keys string.
+  */
+exports.prettyKey = function Helpers_prettyKey(aElemKey, aAllowCloverleaf) {
+  let elemString = "";
+  let elemMod = aElemKey.getAttribute("modifiers");
+
+  if (elemMod.match("accel")) {
+    if (Services.appinfo.OS == "Darwin") {
+      // XXX bug 779642 Use "Cmd-" literal vs. cloverleaf meta-key until
+      // Orion adds variable height lines.
+      if (!aAllowCloverleaf) {
+        elemString += "Cmd-";
+      } else {
+        elemString += PlatformKeys.GetStringFromName("VK_META") +
+          PlatformKeys.GetStringFromName("MODIFIER_SEPARATOR");
+      }
+    } else {
+      elemString += PlatformKeys.GetStringFromName("VK_CONTROL") +
+        PlatformKeys.GetStringFromName("MODIFIER_SEPARATOR");
+    }
+  }
+  if (elemMod.match("access")) {
+    if (Services.appinfo.OS == "Darwin") {
+      elemString += PlatformKeys.GetStringFromName("VK_CONTROL") +
+        PlatformKeys.GetStringFromName("MODIFIER_SEPARATOR");
+    } else {
+      elemString += PlatformKeys.GetStringFromName("VK_ALT") +
+        PlatformKeys.GetStringFromName("MODIFIER_SEPARATOR");
+    }
+  }
+  if (elemMod.match("shift")) {
+    elemString += PlatformKeys.GetStringFromName("VK_SHIFT") +
+      PlatformKeys.GetStringFromName("MODIFIER_SEPARATOR");
+  }
+  if (elemMod.match("alt")) {
+    elemString += PlatformKeys.GetStringFromName("VK_ALT") +
+      PlatformKeys.GetStringFromName("MODIFIER_SEPARATOR");
+  }
+  if (elemMod.match("ctrl") || elemMod.match("control")) {
+    elemString += PlatformKeys.GetStringFromName("VK_CONTROL") +
+      PlatformKeys.GetStringFromName("MODIFIER_SEPARATOR");
+  }
+  if (elemMod.match("meta")) {
+    elemString += PlatformKeys.GetStringFromName("VK_META") +
+      PlatformKeys.GetStringFromName("MODIFIER_SEPARATOR");
+  }
+
+  return elemString +
+    (aElemKey.getAttribute("keycode").replace(/^.*VK_/, "") ||
+     aElemKey.getAttribute("key")).toUpperCase();
+}