Integrate ErrorConsole with Apps Dev Tool

chrome/browser/ui/webui/extensions/extension_error_ui_util.cc

+// Copyright 2014 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.
+
+#include "chrome/browser/ui/webui/extensions/extension_error_ui_util.h"
+
+#include "base/bind.h"
+#include "base/file_util.h"
+#include "base/files/file_path.h"
+#include "base/location.h"
+#include "base/strings/utf_string_conversions.h"
+#include "base/threading/sequenced_worker_pool.h"
+#include "base/values.h"
+#include "chrome/browser/devtools/devtools_window.h"
+#include "chrome/browser/extensions/extension_service.h"
+#include "chrome/browser/profiles/profile.h"
+#include "chrome/browser/ui/browser.h"
+#include "chrome/browser/ui/browser_finder.h"
+#include "chrome/browser/ui/tabs/tab_strip_model.h"
+#include "content/public/browser/browser_thread.h"
+#include "content/public/browser/render_view_host.h"
+#include "content/public/browser/web_contents.h"
+#include "extensions/browser/extension_error.h"
+#include "extensions/browser/extension_system.h"
+#include "extensions/browser/file_highlighter.h"
+#include "extensions/common/constants.h"
+#include "extensions/common/extension.h"
+
+namespace extensions {
+namespace error_ui_util {
+
+namespace {
+
+// Keys for objects passed to and from extension error UI.
+const char kPathSuffixKey[] = "pathSuffix";
+const char kTitleKey[] = "title";
+
+std::string ReadFileToString(const base::FilePath& path) {
+  std::string data;
+  base::ReadFileToString(path, &data);
+  return data;
+}
+
+void GetManifestFileCallback(base::DictionaryValue* results,
+                             const std::string& key,
+                             const std::string& specific,
+                             const JavascriptResponseCallback& response,
+                             const std::string& contents) {
+  ManifestHighlighter highlighter(contents, key, specific);
+  highlighter.SetHighlightedRegions(results);
+  response.Run(*results);
+}
+
+void GetSourceFileCallback(base::DictionaryValue* results,
+                           int line_number,
+                           const JavascriptResponseCallback& response,
+                           const std::string& contents) {
+  SourceHighlighter highlighter(contents, line_number);
+  highlighter.SetHighlightedRegions(results);
+  response.Run(*results);
+}
+
+}  // namespace
+
+void HandleRequestFileSource(const base::DictionaryValue* args,
+                             Profile* profile,
+                             const JavascriptResponseCallback& response) {
+  // Three required arguments: extension_id, path_suffix, and error_message.
+  std::string extension_id;
+  base::FilePath::StringType path_suffix_string;
+  base::string16 error_message;
+
+  if (!args->GetString(kPathSuffixKey, &path_suffix_string) ||
+      !args->GetString(ExtensionError::kExtensionIdKey, &extension_id) ||
+      !args->GetString(ExtensionError::kMessageKey, &error_message)) {
+    NOTREACHED();
+    return;
+  }
+
+  ExtensionService* extension_service =
+      ExtensionSystem::Get(profile)->extension_service();
+  if (!extension_service)
+    return;
+
+  const Extension* extension = extension_service->GetExtensionById(
+      extension_id, true /* include disabled */);
+
+  // Under no circumstances should we ever need to reference a file outside of
+  // the extension's directory. If it tries to, abort.
+  base::FilePath path_suffix(path_suffix_string);
+  if (path_suffix.ReferencesParent())
+    return;
+
+  base::FilePath path = extension->path().Append(path_suffix);
+
+  // Setting the title and the error message is the same for all file types.
+  scoped_ptr<base::DictionaryValue> results(new base::DictionaryValue);
+  results->SetString(kTitleKey,
+                     base::UTF8ToUTF16(extension->name()) +
+                         base::ASCIIToUTF16(": ") +
+                         path.BaseName().LossyDisplayName());
+  results->SetString(ExtensionError::kMessageKey, error_message);
+
+  base::Callback<void(const std::string&)> reply;
+  if (path_suffix_string == kManifestFilename) {
+    std::string manifest_key;
+    if (!args->GetString(ManifestError::kManifestKeyKey, &manifest_key)) {
+      NOTREACHED();
+      return;
+    }
+
+    // A "specific" location is optional.
+    std::string specific;
+    args->GetString(ManifestError::kManifestSpecificKey, &specific);
+
+    reply = base::Bind(&GetManifestFileCallback,
+                       base::Owned(results.release()),
+                       manifest_key,
+                       specific,
+                       response);
+  } else {
+    int line_number = 0;
+    args->GetInteger(RuntimeError::kLineNumberKey, &line_number);
+
+    reply = base::Bind(&GetSourceFileCallback,
+                       base::Owned(results.release()),
+                       line_number,
+                       response);
+  }
+
+  base::PostTaskAndReplyWithResult(content::BrowserThread::GetBlockingPool(),
+                                   FROM_HERE,
+                                   base::Bind(&ReadFileToString, path),
+                                   reply);
+}
+
+void HandleOpenDevTools(const base::DictionaryValue* args) {
+  int render_process_id = 0;
+  int render_view_id = 0;
+
+  // The render view and render process ids are required.
+  if (!args->GetInteger(RuntimeError::kRenderProcessIdKey,
+                        &render_process_id) ||
+      !args->GetInteger(RuntimeError::kRenderViewIdKey, &render_view_id)) {
+    NOTREACHED();
+    return;
+  }
+
+  content::RenderViewHost* rvh =
+      content::RenderViewHost::FromID(render_process_id, render_view_id);
+
+  // It's possible that the render view was closed since we last updated the
+  // links. Handle this gracefully.
+  if (!rvh)
+    return;
+
+  // If we include a url, we should inspect it specifically (and not just the
+  // render view).
+  base::string16 url;
+  if (args->GetString(RuntimeError::kUrlKey, &url)) {
+    // Line and column numbers are optional; default to the first line.
+    int line_number = 1;
+    int column_number = 1;
+    args->GetInteger(RuntimeError::kLineNumberKey, &line_number);
+    args->GetInteger(RuntimeError::kColumnNumberKey, &column_number);
+
+    // Line/column numbers are reported in display-friendly 1-based numbers,
+    // but are inspected in zero-based numbers.
+    DevToolsWindow::OpenDevToolsWindow(
+        rvh,
+        DevToolsToggleAction::Reveal(url, line_number - 1, column_number - 1));
+  } else {
+    DevToolsWindow::OpenDevToolsWindow(rvh);
+  }
+
+  // Once we open the inspector, we focus on the appropriate tab...
+  content::WebContents* web_contents =
+      content::WebContents::FromRenderViewHost(rvh);
+  Browser* browser = chrome::FindBrowserWithWebContents(web_contents);
+
+  // ... but some pages (popups and apps) don't have tabs, and some (background
+  // pages) don't have an associated browser. For these, the inspector opens in
+  // a new window, and our work is done.
+  if (!browser || !browser->is_type_tabbed())
+    return;
+
+  TabStripModel* tab_strip = browser->tab_strip_model();
+  tab_strip->ActivateTabAt(tab_strip->GetIndexOfWebContents(web_contents),
+                           false);  // Not through direct user gesture.
+}
+
+}  // namespace error_ui_util
+}  // namespace extensions