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Side by Side Diff: components/contextual_search/renderer/contextual_search_wrapper.h

Issue 1385663002: [Contextual Search] Add Mojo-enabled API component. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Add a RenderFrameObserver to the Wrapper and clear the gin Handle OnDestruct of the render frame. Created 5 years ago
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1 // Copyright 2015 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 #ifndef COMPONENTS_CONTEXTUAL_SEARCH_RENDERER_CONTEXTUAL_SEARCH_WRAPPER_H_
6 #define COMPONENTS_CONTEXTUAL_SEARCH_RENDERER_CONTEXTUAL_SEARCH_WRAPPER_H_
7
8 #include "base/basictypes.h"
9 #include "components/contextual_search/common/contextual_search_js_api_service.m ojom.h"
10 #include "content/public/renderer/render_frame.h"
11 #include "content/public/renderer/render_frame_observer.h"
12 #include "gin/handle.h"
13 #include "gin/wrappable.h"
14
15 namespace blink {
16 class WebFrame;
17 }
18
19 namespace gin {
20 class Arguments;
21 }
22
23 namespace contextual_search {
24
25 // Wrapper for injecting Contextual Search JavaScript
26 // into a WebFrame.
27 class ContextualSearchWrapper : public gin::Wrappable<ContextualSearchWrapper>,
28 public content::RenderFrameObserver {
29 public:
30 // Installs Contextual Search JavaScript.
31 static void Install(content::RenderFrame* render_frame);
32
33 // RenderFrameObserver implementation.
34 void OnDestruct() override;
35
36 // Sets the Gin Handle being used to wrap this object.
37 void SetGinHandle(gin::Handle<ContextualSearchWrapper> wrapper);
jochen (gone - plz use gerrit) 2015/12/04 13:21:36 delete this
Donn Denman 2015/12/09 00:57:33 Done.
38
39 // Required by gin::Wrappable.
40 static gin::WrapperInfo kWrapperInfo;
41
42 private:
43 // Instantiate by calling Install.
44 explicit ContextualSearchWrapper(content::RenderFrame* render_frame);
45 ~ContextualSearchWrapper() override;
46
47 // gin::Wrappable.
48 gin::ObjectTemplateBuilder GetObjectTemplateBuilder(
49 v8::Isolate* isolate) final;
50
51 // Called by JavaScript to set the caption , and indicate whether
52 // the caption provides an answer (e.g. an actual definition), rather than
53 // just general notification of what kind of answer may be available.
54 void SetCaption(const std::string& caption, bool does_answer);
55
56 // Helper function to ensure that this class has connected to the API service.
57 void EnsureServiceConnected();
58
59 // The gin handle being used to wrap this object.
60 gin::Handle<ContextualSearchWrapper> gin_handle_;
jochen (gone - plz use gerrit) 2015/12/04 13:21:36 delete this
Donn Denman 2015/12/09 00:57:33 Done.
61
62 // The service to notify when API calls are made.
63 ContextualSearchJsApiServicePtr contextual_search_js_api_service_;
64
65 DISALLOW_COPY_AND_ASSIGN(ContextualSearchWrapper);
66 };
67
68 } // namespace contextual_search
69
70 #endif // COMPONENTS_CONTEXTUAL_SEARCH_RENDERER_CONTEXTUAL_SEARCH_WRAPPER_H_
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