Add directories handling support for apps/extensions.

The change introduces a "include_directories" entry in the manifest
file for file_handlers. In case the value is true, the file handler
becomes a generic handler and adds the given extension to the right
click menu.

BUG=415897

R=mtomasz@chromium.org

Review URL: https://codereview.chromium.org/1407473003

Cr-Commit-Position: refs/heads/master@{#377467}

3 files changed, 35 insertions, 4 deletions

diff --git a/extensions/browser/api/app_runtime/app_runtime_api.cc b/extensions/browser/api/app_runtime/app_runtime_api.cc
index 67f3ead..fca709b 100644
--- a/extensions/browser/api/app_runtime/app_runtime_api.cc
+++ b/extensions/browser/api/app_runtime/app_runtime_api.cc
@@ -11,6 +11,7 @@
 #include "base/metrics/histogram.h"
 #include "base/time/time.h"
 #include "base/values.h"
+#include "extensions/browser/entry_info.h"
 #include "extensions/browser/event_router.h"
 #include "extensions/browser/extension_prefs.h"
 #include "extensions/browser/extensions_browser_client.h"
@@ -162,7 +163,7 @@ void AppRuntimeEventRouter::DispatchOnLaunchedEventWithFileEntries(
     BrowserContext* context,
     const Extension* extension,
     const std::string& handler_id,
-    const std::vector<std::string>& mime_types,
+    const std::vector<EntryInfo>& entries,
     const std::vector<GrantedFileEntry>& file_entries) {
   // TODO(sergeygs): Use the same way of creating an event (using the generated
   // boilerplate) as below in DispatchOnLaunchedEventWithUrl.
@@ -176,14 +177,15 @@ void AppRuntimeEventRouter::DispatchOnLaunchedEventWithFileEntries(
   }
 
   scoped_ptr<base::ListValue> items(new base::ListValue);
-  DCHECK(file_entries.size() == mime_types.size());
+  DCHECK(file_entries.size() == entries.size());
   for (size_t i = 0; i < file_entries.size(); ++i) {
     scoped_ptr<base::DictionaryValue> launch_item(new base::DictionaryValue);
 
     launch_item->SetString("fileSystemId", file_entries[i].filesystem_id);
     launch_item->SetString("baseName", file_entries[i].registered_name);
-    launch_item->SetString("mimeType", mime_types[i]);
+    launch_item->SetString("mimeType", entries[i].mime_type);
     launch_item->SetString("entryId", file_entries[i].id);
+    launch_item->SetBoolean("isDirectory", entries[i].is_directory);
     items->Append(launch_item.release());
   }
   launch_data->Set("items", items.release());
diff --git a/extensions/browser/api/app_runtime/app_runtime_api.h b/extensions/browser/api/app_runtime/app_runtime_api.h
index 38f6fd6..35a28d2 100644
--- a/extensions/browser/api/app_runtime/app_runtime_api.h
+++ b/extensions/browser/api/app_runtime/app_runtime_api.h
@@ -25,6 +25,7 @@ class WebContents;
 namespace extensions {
 
 class Extension;
+struct EntryInfo;
 struct GrantedFileEntry;
 
 class AppRuntimeEventRouter {
@@ -64,7 +65,7 @@ class AppRuntimeEventRouter {
       content::BrowserContext* context,
       const Extension* extension,
       const std::string& handler_id,
-      const std::vector<std::string>& mime_types,
+      const std::vector<EntryInfo>& entries,
       const std::vector<GrantedFileEntry>& file_entries);
 
   // |handler_id| corresponds to the id of the url_handlers item
diff --git a/extensions/browser/entry_info.h b/extensions/browser/entry_info.h
new file mode 100644
index 0000000..eb5f5d5
--- /dev/null
+++ b/extensions/browser/entry_info.h
@@ -0,0 +1,28 @@
+// Copyright 2016 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.
+
+#ifndef EXTENSIONS_BROWSER_ENTRY_INFO_H_
+#define EXTENSIONS_BROWSER_ENTRY_INFO_H_
+
+#include <string>
+
+#include "base/files/file_path.h"
+
+namespace extensions {
+
+// Contains information about files and directories.
+struct EntryInfo {
+  EntryInfo(const base::FilePath& path,
+            const std::string& mime_type,
+            bool is_directory)
+      : path(path), mime_type(mime_type), is_directory(is_directory) {}
+
+  base::FilePath path;
+  std::string mime_type;  // Useful only if is_directory = false.
+  bool is_directory;
+};
+
+}  // namespace extensions
+
+#endif  // EXTENSIONS_BROWSER_ENTRY_INFO_H_