Initial checkin of the HTML downloads UI. It's not yet complete (lacking...

chrome/browser/dom_ui/dom_ui.cc

 // Copyright (c) 2006-2008 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/dom_ui/dom_ui.h"
 
 #include "base/json_reader.h"
 #include "base/json_writer.h"
 #include "base/values.h"
 #include "chrome/common/l10n_util.h"
@@ skipping 29 matching lines @@
       // This probably indicates a programming error.
       NOTREACHED();
       return;
     }
   }
 
   // Forward this message and content on.
   callback->second->Run(value.get());
 }
 
+void DOMUI::CallJavascriptFunction(const std::wstring& function_name) {
+  std::wstring javascript = function_name + L"();";
+  ExecuteJavascript(javascript);
+}
+
 void DOMUI::CallJavascriptFunction(const std::wstring& function_name,
                                    const Value& arg) {
   std::string json;
   JSONWriter::Write(&arg, false, &json);
   std::wstring javascript = function_name + L"(" + UTF8ToWide(json) + L");";
 
   ExecuteJavascript(javascript);
 }
 
 void DOMUI::CallJavascriptFunction(
@@ skipping 55 matching lines @@
   if (l10n_util::GetTextDirection() == l10n_util::RIGHT_TO_LEFT) {
     if (using_url_as_the_title) {
       l10n_util::WrapStringWithLTRFormatting(&title_to_set);
     } else {
       bool success =
           l10n_util::AdjustStringForLocaleDirection(title, &title_to_set);
       DCHECK(success ? (title != title_to_set) : (title == title_to_set));
     }
   }
   dictionary->SetString(L"title", title_to_set);
-}
+}
+
+int DOMMessageHandler::ExtractIntegerValue(const Value* value) {
+  if (value && value->GetType() == Value::TYPE_LIST) {
+    const ListValue* list_value = static_cast<const ListValue*>(value);
+    Value* list_member;
+
+    // Get id.
+    if (list_value->Get(0, &list_member) &&
+        list_member->GetType() == Value::TYPE_STRING) {
+      const StringValue* string_value =
+          static_cast<const StringValue*>(list_member);
+      std::wstring wstring_value;
+      string_value->GetAsString(&wstring_value);
+      return StringToInt(wstring_value);
+    }
+  }
+  return NULL;

[Paul Godavari, 2009/02/17 22:23:19]

Nit: I think this should return some default value here (like the empty string
in the method below) rather than returning NULL for an int value. Or you could
change the method signature to be:
bool Extract(const Value* in_value, int* out_int)
to better indicate success / failure.

+}
+
+std::wstring DOMMessageHandler::ExtractStringValue(const Value* value) {
+  if (value && value->GetType() == Value::TYPE_LIST) {
+    const ListValue* list_value = static_cast<const ListValue*>(value);
+    Value* list_member;
+
+    // Get id.
+    if (list_value->Get(0, &list_member) &&
+        list_member->GetType() == Value::TYPE_STRING) {
+      const StringValue* string_value =
+          static_cast<const StringValue*>(list_member);
+      std::wstring wstring_value;
+      string_value->GetAsString(&wstring_value);
+      return wstring_value;
+    }
+  }
+  return std::wstring();
+}
+