Manifest handler for all keys background-related.

chrome/renderer/extensions/event_bindings.cc

 // Copyright (c) 2012 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/renderer/extensions/event_bindings.h"
 
 #include <vector>
 
 #include "base/bind.h"
 #include "base/basictypes.h"
 #include "base/lazy_instance.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop.h"
+#include "chrome/common/extensions/background_info.h"
+#include "chrome/common/extensions/extension.h"
 #include "chrome/common/extensions/extension_messages.h"
 #include "chrome/common/extensions/extension_set.h"
 #include "chrome/common/extensions/value_counter.h"
 #include "chrome/common/url_constants.h"
 #include "chrome/common/view_type.h"
 #include "chrome/renderer/extensions/chrome_v8_context.h"
 #include "chrome/renderer/extensions/chrome_v8_context_set.h"
 #include "chrome/renderer/extensions/chrome_v8_extension.h"
 #include "chrome/renderer/extensions/dispatcher.h"
 #include "chrome/renderer/extensions/event_bindings.h"
 #include "chrome/renderer/extensions/extension_helper.h"
 #include "chrome/renderer/extensions/user_script_slave.h"
 #include "content/public/renderer/render_thread.h"
 #include "content/public/renderer/v8_value_converter.h"
 #include "extensions/common/event_filter.h"
 #include "googleurl/src/gurl.h"
 #include "grit/renderer_resources.h"
 #include "third_party/WebKit/Source/Platform/chromium/public/WebURL.h"
 #include "third_party/WebKit/Source/Platform/chromium/public/WebURLRequest.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebDocument.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebFrame.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebSecurityOrigin.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebView.h"
 #include "v8/include/v8.h"
 
 using WebKit::WebFrame;
 using WebKit::WebSecurityOrigin;
 using WebKit::WebURL;
 using content::RenderThread;
-using extensions::Extension;
 
 namespace extensions {
 
 namespace {
 
 // A map of event names to the number of contexts listening to that event.
 // We notify the browser about event listeners when we transition between 0
 // and 1.
 typedef std::map<std::string, int> EventListenerCounts;
 
 // A map of extension IDs to listener counts for that extension.
 base::LazyInstance<std::map<std::string, EventListenerCounts> >
     g_listener_counts = LAZY_INSTANCE_INITIALIZER;
 
 // A map of event names to a (filter -> count) map. The map is used to keep
 // track of which filters are in effect for which events.
 // We notify the browser about filtered event listeners when we transition
 // between 0 and 1.
-typedef std::map<std::string, linked_ptr<extensions::ValueCounter> >
+typedef std::map<std::string, linked_ptr<ValueCounter> >
     FilteredEventListenerCounts;
 
 // A map of extension IDs to filtered listener counts for that extension.
 base::LazyInstance<std::map<std::string, FilteredEventListenerCounts> >
     g_filtered_listener_counts = LAZY_INSTANCE_INITIALIZER;
 
-base::LazyInstance<extensions::EventFilter> g_event_filter =
-    LAZY_INSTANCE_INITIALIZER;
+base::LazyInstance<EventFilter> g_event_filter = LAZY_INSTANCE_INITIALIZER;
 
 // TODO(koz): Merge this into EventBindings.
 class ExtensionImpl : public ChromeV8Extension {
  public:
   explicit ExtensionImpl(Dispatcher* dispatcher)
       : ChromeV8Extension(dispatcher) {
     RouteStaticFunction("AttachEvent", &AttachEvent);
     RouteStaticFunction("DetachEvent", &DetachEvent);
     RouteStaticFunction("AttachFilteredEvent", &AttachFilteredEvent);
     RouteStaticFunction("DetachFilteredEvent", &DetachFilteredEvent);
@@ skipping 110 matching lines @@
     base::Value* filter_value = converter->FromV8Value(args[1]->ToObject(),
         v8::Context::GetCurrent());
     if (!filter_value)
       return v8::Integer::New(-1);
     if (!filter_value->GetAsDictionary(&filter_dict)) {
       delete filter_value;
       return v8::Integer::New(-1);
     }
 
     filter.reset(filter_dict);
-    extensions::EventFilter& event_filter = g_event_filter.Get();
+    EventFilter& event_filter = g_event_filter.Get();
     int id = event_filter.AddEventMatcher(event_name, ParseEventMatcher(
         filter.get()));
 
     // Only send IPCs the first time a filter gets added.
     if (AddFilter(event_name, extension_id, filter.get())) {
       bool lazy = IsLazyBackgroundPage(context->extension());
       content::RenderThread::Get()->Send(
           new ExtensionHostMsg_AddFilteredListener(extension_id, event_name,
                                                    *filter, lazy));
     }
 
     return v8::Integer::New(id);
   }
 
   // Add a filter to |event_name| in |extension_id|, returning true if it
   // was the first filter for that event in that extension.
   static bool AddFilter(const std::string& event_name,
                         const std::string& extension_id,
                         base::DictionaryValue* filter) {
     FilteredEventListenerCounts& counts =
         g_filtered_listener_counts.Get()[extension_id];
     FilteredEventListenerCounts::iterator it = counts.find(event_name);
     if (it == counts.end())
-      counts[event_name].reset(new extensions::ValueCounter);
+      counts[event_name].reset(new ValueCounter);
 
     int result = counts[event_name]->Add(*filter);
     return 1 == result;
   }
 
   // Remove a filter from |event_name| in |extension_id|, returning true if it
   // was the last filter for that event in that extension.
   static bool RemoveFilter(const std::string& event_name,
                            const std::string& extension_id,
                            base::DictionaryValue* filter) {
@@ skipping 19 matching lines @@
     const ChromeV8ContextSet& context_set = dispatcher->v8_context_set();
     ChromeV8Context* context = context_set.GetCurrent();
     if (!context)
       return v8::Undefined();
 
     std::string extension_id = context->GetExtensionID();
     if (extension_id.empty())
       return v8::Undefined();
 
     int matcher_id = args[0]->Int32Value();
-    extensions::EventFilter& event_filter = g_event_filter.Get();
-    extensions::EventMatcher* event_matcher =
+    EventFilter& event_filter = g_event_filter.Get();
+    EventMatcher* event_matcher =
         event_filter.GetEventMatcher(matcher_id);
 
     const std::string& event_name = event_filter.GetEventName(matcher_id);
 
     // Only send IPCs the last time a filter gets removed.
     if (RemoveFilter(event_name, extension_id, event_matcher->value())) {
       bool lazy = is_manual && IsLazyBackgroundPage(context->extension());
       content::RenderThread::Get()->Send(
           new ExtensionHostMsg_RemoveFilteredListener(extension_id, event_name,
                                                       *event_matcher->value(),
                                                       lazy));
     }
 
     event_filter.RemoveEventMatcher(matcher_id);
 
     return v8::Undefined();
   }
 
   static v8::Handle<v8::Value> MatchAgainstEventFilter(
       const v8::Arguments& args) {
-    typedef std::set<extensions::EventFilter::MatcherID> MatcherIDs;
+    typedef std::set<EventFilter::MatcherID> MatcherIDs;
 
-    extensions::EventFilter& event_filter = g_event_filter.Get();
+    EventFilter& event_filter = g_event_filter.Get();
     std::string event_name = *v8::String::AsciiValue(args[0]->ToString());
-    extensions::EventFilteringInfo info = ParseFromObject(args[1]->ToObject());
+    EventFilteringInfo info = ParseFromObject(args[1]->ToObject());
     MatcherIDs matched_event_filters = event_filter.MatchEvent(
         event_name, info);
     v8::Handle<v8::Array> array(v8::Array::New(matched_event_filters.size()));
     int i = 0;
     for (MatcherIDs::iterator it = matched_event_filters.begin();
          it != matched_event_filters.end(); ++it) {
       array->Set(v8::Integer::New(i++), v8::Integer::New(*it));
     }
     return array;
   }
 
-  static extensions::EventFilteringInfo ParseFromObject(
-      v8::Handle<v8::Object> object) {
-    extensions::EventFilteringInfo info;
+  static EventFilteringInfo ParseFromObject(v8::Handle<v8::Object> object) {
+    EventFilteringInfo info;
     v8::Handle<v8::String> url(v8::String::New("url"));
     if (object->Has(url)) {
       v8::Handle<v8::Value> url_value(object->Get(url));
       info.SetURL(GURL(*v8::String::AsciiValue(url_value)));
     }
     return info;
   }
 
  private:
   static bool IsLazyBackgroundPage(const Extension* extension) {
     content::RenderView* render_view = GetCurrentRenderView();
     if (!render_view)
       return false;
 
     ExtensionHelper* helper = ExtensionHelper::Get(render_view);
-    return (extension && extension->has_lazy_background_page() &&
+    return (extension && BackgroundInfo::HasLazyBackgroundPage(extension) &&
             helper->view_type() == chrome::VIEW_TYPE_EXTENSION_BACKGROUND_PAGE);
   }
 
-  static scoped_ptr<extensions::EventMatcher> ParseEventMatcher(
+  static scoped_ptr<EventMatcher> ParseEventMatcher(
       base::DictionaryValue* filter_dict) {
-    return scoped_ptr<extensions::EventMatcher>(new extensions::EventMatcher(
+    return scoped_ptr<EventMatcher>(new EventMatcher(
         scoped_ptr<base::DictionaryValue>(filter_dict->DeepCopy())));
   }
 };
 
 }  // namespace
 
 // static
 ChromeV8Extension* EventBindings::Get(Dispatcher* dispatcher) {
   return new ExtensionImpl(dispatcher);
 }
 
 }  // namespace extensions