2 files changed, 164 insertions, 0 deletions
diff --git a/toolkit/jetpack/sdk/console/plain-text.js b/toolkit/jetpack/sdk/console/plain-text.js
new file mode 100644
index 000000000..0e44cf106
--- /dev/null
+++ b/toolkit/jetpack/sdk/console/plain-text.js
@@ -0,0 +1,78 @@
+/* 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";
+
+module.metadata = {
+  "stability": "unstable"
+};
+
+const { Cc, Ci, Cu, Cr } = require("chrome");
+const self = require("../self");
+const prefs = require("../preferences/service");
+const { merge } = require("../util/object");
+const { ConsoleAPI } = Cu.import("resource://gre/modules/Console.jsm", {});
+
+const DEFAULT_LOG_LEVEL = "error";
+const ADDON_LOG_LEVEL_PREF = "extensions." + self.id + ".sdk.console.logLevel";
+const SDK_LOG_LEVEL_PREF = "extensions.sdk.console.logLevel";
+
+var logLevel = DEFAULT_LOG_LEVEL;
+function setLogLevel() {
+  logLevel = prefs.get(ADDON_LOG_LEVEL_PREF,
+                           prefs.get(SDK_LOG_LEVEL_PREF,
+                                     DEFAULT_LOG_LEVEL));
+}
+setLogLevel();
+
+var logLevelObserver = {
+  QueryInterface: function(iid) {
+    if (!iid.equals(Ci.nsIObserver) &&
+        !iid.equals(Ci.nsISupportsWeakReference) &&
+        !iid.equals(Ci.nsISupports))
+      throw Cr.NS_ERROR_NO_INTERFACE;
+    return this;
+  },
+  observe: function(subject, topic, data) {
+    setLogLevel();
+  }
+};
+var branch = Cc["@mozilla.org/preferences-service;1"].
+             getService(Ci.nsIPrefService).
+             getBranch(null);
+branch.addObserver(ADDON_LOG_LEVEL_PREF, logLevelObserver, true);
+branch.addObserver(SDK_LOG_LEVEL_PREF, logLevelObserver, true);
+
+function PlainTextConsole(print, innerID) {
+
+  let consoleOptions = {
+    prefix: self.name,
+    maxLogLevel: logLevel,
+    dump: print,
+    innerID: innerID,
+    consoleID: "addon/" + self.id
+  };
+  let console = new ConsoleAPI(consoleOptions);
+
+  // As we freeze the console object, we can't modify this property afterward
+  Object.defineProperty(console, "maxLogLevel", {
+    get: function() {
+      return logLevel;
+    }
+  });
+
+  // We defined the `__exposedProps__` in our console chrome object.
+  //
+  // Meanwhile we're investigating with the platform team if `__exposedProps__`
+  // are needed, or are just a left-over.
+
+  console.__exposedProps__ = Object.keys(ConsoleAPI.prototype).reduce(function(exposed, prop) {
+    exposed[prop] = "r";
+    return exposed;
+  }, {});
+
+  Object.freeze(console);
+  return console;
+};
+exports.PlainTextConsole = PlainTextConsole;
diff --git a/toolkit/jetpack/sdk/console/traceback.js b/toolkit/jetpack/sdk/console/traceback.js
new file mode 100644
index 000000000..be0fb7b94
--- /dev/null
+++ b/toolkit/jetpack/sdk/console/traceback.js
@@ -0,0 +1,86 @@
+/* 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";
+
+module.metadata = {
+  "stability": "experimental"
+};
+
+const { Ci, components } = require("chrome");
+const { parseStack, sourceURI } = require("toolkit/loader");
+const { readURISync } = require("../net/url");
+
+function safeGetFileLine(path, line) {
+  try {
+    var scheme = require("../url").URL(path).scheme;
+    // TODO: There should be an easier, more accurate way to figure out
+    // what's the case here.
+    if (!(scheme == "http" || scheme == "https"))
+      return readURISync(path).split("\n")[line - 1];
+  } catch (e) {}
+  return null;
+}
+
+function nsIStackFramesToJSON(frame) {
+  var stack = [];
+
+  while (frame) {
+    if (frame.filename) {
+      stack.unshift({
+        fileName: sourceURI(frame.filename),
+        lineNumber: frame.lineNumber,
+        name: frame.name
+      });
+    }
+    frame = frame.caller;
+  }
+
+  return stack;
+};
+
+var fromException = exports.fromException = function fromException(e) {
+  if (e instanceof Ci.nsIException)
+    return nsIStackFramesToJSON(e.location);
+  if (e.stack && e.stack.length)
+    return parseStack(e.stack);
+  if (e.fileName && typeof(e.lineNumber == "number"))
+    return [{fileName: sourceURI(e.fileName),
+             lineNumber: e.lineNumber,
+             name: null}];
+  return [];
+};
+
+var get = exports.get = function get() {
+  return nsIStackFramesToJSON(components.stack.caller);
+};
+
+var format = exports.format = function format(tbOrException) {
+  if (tbOrException === undefined) {
+    tbOrException = get();
+    tbOrException.pop();
+  }
+
+  var tb;
+  if (typeof(tbOrException) == "object" &&
+      tbOrException.constructor.name == "Array")
+    tb = tbOrException;
+  else
+    tb = fromException(tbOrException);
+
+  var lines = ["Traceback (most recent call last):"];
+
+  tb.forEach(
+    function(frame) {
+      if (!(frame.fileName || frame.lineNumber || frame.name))
+      	return;
+
+      lines.push('  File "' + frame.fileName + '", line ' +
+                 frame.lineNumber + ', in ' + frame.name);
+      var sourceLine = safeGetFileLine(frame.fileName, frame.lineNumber);
+      if (sourceLine)
+        lines.push('    ' + sourceLine.trim());
+    });
+
+  return lines.join("\n");
+};