Write a devtools extension to inspect chrome.storage data

chrome/common/extensions/docs/examples/extensions/storage_api_devtools/scripts/util.js

Index: chrome/common/extensions/docs/examples/extensions/storage_api_devtools/scripts/util.js
===================================================================
--- chrome/common/extensions/docs/examples/extensions/storage_api_devtools/scripts/util.js	(revision 0)
+++ chrome/common/extensions/docs/examples/extensions/storage_api_devtools/scripts/util.js	(revision 0)
@@ -0,0 +1,74 @@
+// Copyright 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Escape a string so that it can be safely injected into the script being
+// evaled.
+function evalEscapeString(str) {
+  return str.replace(/\\/g, '\\\\').replace(/'/g, '\\\'');
+}
+
+// Evaluate a script in the context of the inspected window.
+// Before evaluating the script, some substitutions will be done to allow
+// parameter passing. For example:
+// <REPLACE_WITH_EXTENSION_ID_BEFORE_EVAL> ->
+//     chrome.i18n.getMessage('@@extension_id')
+// <REPLACE_WITH_EXTRA_PARAMETER_BEFORE_EVAL:name> ->
+//     extra.name
+// |path|: File path of the script.
+// |options|: See the options parameter of
+// chrome.devtools.inspectedWindow.eval (currently undocumented).
+// |extra|: A dictionary containing extra parameters to inject into the
+//          script before eval. Parameter values will be converted to
+//          strings.
+// |callback|: See the callback parameter of
+// chrome.devtools.inspectedWindow.eval.
+
+function evalScript(path, options, extra, callback) {
+  var xhr = new XMLHttpRequest();
+  xhr.open('GET', path, true);
+  xhr.onreadystatechange = (function() {
+    if (xhr.readyState == XMLHttpRequest.DONE) {
+      if (xhr.status == 200) {
+        var script = xhr.responseText.replace(
+            '<REPLACE_WITH_EXTENSION_ID_BEFORE_EVAL>',
+            chrome.i18n.getMessage('@@extension_id'));
+        if (extra)
+          Object.keys(extra).forEach(function(key) {
+            script = script.replace(
+                '<REPLACE_WITH_EXTRA_PARAMETER_BEFORE_EVAL:' + key + '>',
+                evalEscapeString(extra[key].toString()));
+          });
+        chrome.devtools.inspectedWindow.eval(script, options, callback);
+      }
+      xhr = null;
+    }
+  });
+  xhr.send();
+}
+
+// Workaround of http://crbug.com/178618
+// See also bg.js.
+(function() {
+  // We only use get() and set(), and we don't care about lastError.
+  function hookChromeStorageGetSet(area, method) {
+    chrome.storage[area][method] = (function(firstArgument, callback) {
+      var message = {
+        name: 'storageAPIWorkaround',
+        method: method,
+        area: area,
+        firstArgument: firstArgument
+      };
+      var sendMessage = chrome.runtime.sendMessage ||
+        chrome.extension.sendMessage;
+      sendMessage(message, callback || (function(){}));
+    });
+  }
+
+  ['local', 'sync'].forEach(function(area) {
+    ['get', 'set'].forEach(function(method) {
+      hookChromeStorageGetSet(area, method);
+    });
+  });
+})();
+
Property changes on: chrome/common/extensions/docs/examples/extensions/storage_api_devtools/scripts/util.js
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Added: svn:mime-type
   + text/javascript
Added: svn:eol-style
   + LF