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      1 // Copyright 2014 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #include "chrome/renderer/extensions/automation_internal_custom_bindings.h"
      6 
      7 #include "base/bind.h"
      8 #include "base/memory/scoped_ptr.h"
      9 #include "base/values.h"
     10 #include "chrome/common/extensions/manifest_handlers/automation.h"
     11 #include "content/public/renderer/v8_value_converter.h"
     12 #include "extensions/common/extension.h"
     13 #include "extensions/common/manifest.h"
     14 #include "extensions/renderer/script_context.h"
     15 #include "ui/accessibility/ax_enums.h"
     16 
     17 namespace {
     18 
     19 // Helper to convert an enum to a V8 object.
     20 template <typename EnumType>
     21 v8::Local<v8::Object> ToEnumObject(v8::Isolate* isolate,
     22                                    EnumType start_after,
     23                                    EnumType end_at) {
     24   v8::Local<v8::Object> object = v8::Object::New(isolate);
     25   for (int i = start_after + 1; i <= end_at; ++i) {
     26     v8::Local<v8::String> value = v8::String::NewFromUtf8(
     27         isolate, ui::ToString(static_cast<EnumType>(i)).c_str());
     28     object->Set(value, value);
     29   }
     30   return object;
     31 }
     32 
     33 }  // namespace
     34 
     35 namespace extensions {
     36 
     37 AutomationInternalCustomBindings::AutomationInternalCustomBindings(
     38     ScriptContext* context) : ObjectBackedNativeHandler(context) {
     39   RouteFunction(
     40       "IsInteractPermitted",
     41       base::Bind(&AutomationInternalCustomBindings::IsInteractPermitted,
     42                  base::Unretained(this)));
     43   RouteFunction(
     44       "GetSchemaAdditions",
     45       base::Bind(&AutomationInternalCustomBindings::GetSchemaAdditions,
     46                  base::Unretained(this)));
     47 }
     48 
     49 AutomationInternalCustomBindings::~AutomationInternalCustomBindings() {
     50 }
     51 
     52 void AutomationInternalCustomBindings::IsInteractPermitted(
     53     const v8::FunctionCallbackInfo<v8::Value>& args) {
     54   const Extension* extension = context()->extension();
     55   CHECK(extension);
     56   const AutomationInfo* automation_info = AutomationInfo::Get(extension);
     57   CHECK(automation_info);
     58   args.GetReturnValue().Set(
     59       v8::Boolean::New(GetIsolate(), automation_info->interact));
     60 }
     61 
     62 void AutomationInternalCustomBindings::GetSchemaAdditions(
     63     const v8::FunctionCallbackInfo<v8::Value>& args) {
     64   v8::Local<v8::Object> additions = v8::Object::New(GetIsolate());
     65 
     66   additions->Set(
     67       v8::String::NewFromUtf8(GetIsolate(), "EventType"),
     68       ToEnumObject(GetIsolate(), ui::AX_EVENT_NONE, ui::AX_EVENT_LAST));
     69 
     70   additions->Set(
     71       v8::String::NewFromUtf8(GetIsolate(), "RoleType"),
     72       ToEnumObject(GetIsolate(), ui::AX_ROLE_NONE, ui::AX_ROLE_LAST));
     73 
     74   additions->Set(
     75       v8::String::NewFromUtf8(GetIsolate(), "StateType"),
     76       ToEnumObject(GetIsolate(), ui::AX_STATE_NONE, ui::AX_STATE_LAST));
     77 
     78   args.GetReturnValue().Set(additions);
     79 }
     80 
     81 }  // namespace extensions
     82