mandoline/ui/aura/aura_init.cc

   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 "mandoline/ui/aura/aura_init.h"
   6
   7 #include "base/i18n/icu_util.h"
   8 #include "base/lazy_instance.h"
   9 #include "base/path_service.h"
  10 #include "components/mus/public/cpp/view.h"
  11 #include "components/resource_provider/public/cpp/resource_loader.h"
  12 #include "mojo/converters/geometry/geometry_type_converters.h"
  13 #include "ui/aura/env.h"
  14 #include "ui/base/ime/input_method_initializer.h"
  15 #include "ui/base/resource/resource_bundle.h"
  16 #include "ui/base/ui_base_paths.h"
  17
  18 #if defined(OS_LINUX) && !defined(OS_ANDROID)
  19 #include "components/font_service/public/cpp/font_loader.h"
  20 #endif
  21
  22 namespace mandoline {
  23
  24 namespace {
  25
  26 // Paths resources are loaded from.
  27 const char kResourceUIPak[] = "mandoline_ui.pak";
  28
  29 std::set<std::string> GetResourcePaths() {
  30   std::set<std::string> paths;
  31   paths.insert(kResourceUIPak);
  32   return paths;
  33 }
  34
  35 }  // namespace
  36
  37 // TODO(sky): the 1.f should be view->viewport_metrics().device_scale_factor,
  38 // but that causes clipping problems. No doubt we're not scaling a size
  39 // correctly.
  40 AuraInit::AuraInit(mus::View* view, mojo::Shell* shell)
  41     : ui_init_(view->viewport_metrics().size_in_pixels.To<gfx::Size>(), 1.f) {
  42   aura::Env::CreateInstance(false);
  43
  44   InitializeResources(shell);
  45
  46   ui::InitializeInputMethodForTesting();
  47 }
  48
  49 AuraInit::~AuraInit() {
  50 #if defined(OS_LINUX) && !defined(OS_ANDROID)
  51   if (font_loader_.get()) {
  52     SkFontConfigInterface::SetGlobal(nullptr);
  53     // FontLoader is ref counted. We need to explicitly shutdown the background
  54     // thread, otherwise the background thread may be shutdown after the app is
  55     // torn down, when we're in a bad state.
  56     font_loader_->Shutdown();
  57   }
  58 #endif
  59 }
  60
  61 void AuraInit::InitializeResources(mojo::Shell* shell) {
  62   if (ui::ResourceBundle::HasSharedInstance())
  63     return;
  64   resource_provider::ResourceLoader resource_loader(shell, GetResourcePaths());
  65   if (!resource_loader.BlockUntilLoaded())
  66     return;
  67   CHECK(resource_loader.loaded());
  68   base::i18n::InitializeICUWithFileDescriptor(
  69       resource_loader.GetICUFile().TakePlatformFile(),
  70       base::MemoryMappedFile::Region::kWholeFile);
  71   ui::RegisterPathProvider();
  72   ui::ResourceBundle::InitSharedInstanceWithPakPath(base::FilePath());
  73   ui::ResourceBundle::GetSharedInstance().AddDataPackFromFile(
  74       resource_loader.ReleaseFile(kResourceUIPak),
  75       ui::SCALE_FACTOR_100P);
  76
  77   // Initialize the skia font code to go ask fontconfig underneath.
  78 #if defined(OS_LINUX) && !defined(OS_ANDROID)
  79   font_loader_ = skia::AdoptRef(new font_service::FontLoader(shell));
  80   SkFontConfigInterface::SetGlobal(font_loader_.get());
  81 #endif
  82
  83   // There is a bunch of static state in gfx::Font, by running this now,
  84   // before any other apps load, we ensure all the state is set up.
  85   gfx::Font();
  86 }
  87
  88 }  // namespace mandoline