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Issue 1274743004: Sandbox html_viewer on Linux. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Style stuff. Created 5 years, 4 months 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 #include "components/font_service/font_service_app.h"
6
7 #include "base/files/file.h"
8 #include "base/files/file_path.h"
9 #include "mojo/application/public/cpp/application_connection.h"
10 #include "mojo/platform_handle/platform_handle_functions.h"
11
12 COMPILE_ASSERT(static_cast<uint32>(SkTypeface::kNormal) ==
13 static_cast<uint32>(font_service::TYPEFACE_STYLE_NORMAL),
14 typeface_flags_should_match);
15 COMPILE_ASSERT(static_cast<uint32>(SkTypeface::kBold) ==
16 static_cast<uint32>(font_service::TYPEFACE_STYLE_BOLD),
17 typeface_flags_should_match);
18 COMPILE_ASSERT(static_cast<uint32>(SkTypeface::kItalic) ==
19 static_cast<uint32>(font_service::TYPEFACE_STYLE_ITALIC),
20 typeface_flags_should_match);
21 COMPILE_ASSERT(
22 static_cast<uint32>(SkTypeface::kBoldItalic) ==
23 static_cast<uint32>(font_service::TYPEFACE_STYLE_BOLD_ITALIC),
24 typeface_flags_should_match);
25
26 namespace {
27
28 mojo::ScopedHandle GetHandleForPath(const base::FilePath& path) {
29 if (path.empty())
30 return mojo::ScopedHandle();
31
32 mojo::ScopedHandle to_pass;
33 base::File file(path, base::File::FLAG_OPEN | base::File::FLAG_READ);
34 if (!file.IsValid()) {
35 LOG(WARNING) << "file not valid, path=" << path.value();
36 return mojo::ScopedHandle();
37 }
38
39 MojoHandle mojo_handle;
40 MojoResult create_result =
41 MojoCreatePlatformHandleWrapper(file.TakePlatformFile(), &mojo_handle);
42 if (create_result != MOJO_RESULT_OK) {
43 LOG(WARNING) << "unable to create wrapper, path=" << path.value()
44 << "result=" << create_result;
45 return mojo::ScopedHandle();
46 }
47
48 return mojo::ScopedHandle(mojo::Handle(mojo_handle)).Pass();
49 }
50
51 } // namespace
52
53 namespace font_service {
54
55 FontServiceApp::FontServiceApp() {}
56
57 FontServiceApp::~FontServiceApp() {}
58
59 void FontServiceApp::Initialize(mojo::ApplicationImpl* app) {}
60
61 bool FontServiceApp::ConfigureIncomingConnection(
62 mojo::ApplicationConnection* connection) {
63 connection->AddService(this);
64 return true;
65 }
66
67 void FontServiceApp::Create(mojo::ApplicationConnection* connection,
68 mojo::InterfaceRequest<FontService> request) {
69 bindings_.AddBinding(this, request.Pass());
70 }
71
72 void FontServiceApp::MatchFamilyName(const mojo::String& family_name,
73 TypefaceStyle requested_style,
74 const MatchFamilyNameCallback& callback) {
75 SkFontConfigInterface::FontIdentity result_identity;
76 SkString result_family;
77 SkTypeface::Style result_style;
78 SkFontConfigInterface* fc =
79 SkFontConfigInterface::GetSingletonDirectInterface();
80 const bool r = fc->matchFamilyName(
81 family_name.data(), static_cast<SkTypeface::Style>(requested_style),
82 &result_identity, &result_family, &result_style);
83
84 if (!r) {
85 callback.Run(nullptr, "", TYPEFACE_STYLE_NORMAL);
86 return;
87 }
88
89 // Stash away the returned path, so we can give it an ID (index)
90 // which will later be given to us in a request to open the file.
91 int index = FindOrAddPath(result_identity.fString);
92
93 FontIdentityPtr identity(FontIdentity::New());
94 identity->id = static_cast<uint32_t>(index);
95 identity->ttc_index = result_identity.fTTCIndex;
96 identity->str_representation = result_identity.fString.c_str();
97
98 callback.Run(identity.Pass(), result_family.c_str(),
99 static_cast<TypefaceStyle>(result_style));
100 }
101
102 void FontServiceApp::OpenStream(uint32_t id_number,
103 const OpenStreamCallback& callback) {
104 mojo::ScopedHandle handle;
105 if (id_number < static_cast<uint32_t>(paths_.count())) {
106 handle =
107 GetHandleForPath(base::FilePath(paths_[id_number]->c_str())).Pass();
108 }
109
110 callback.Run(handle.Pass());
111 }
112
113 int FontServiceApp::FindOrAddPath(const SkString& path) {
114 int count = paths_.count();
115 for (int i = 0; i < count; ++i) {
116 if (path == *paths_[i])
117 return i;
118 }
119 *paths_.append() = new SkString(path);
120 return count;
121 }
122
123 } // namespace font_service
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