Add the Play Store app search to the launcher.

chrome/browser/ui/app_list/search/arc/arc_playstore_search_result.cc

+// Copyright 2017 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.
+
+#include "chrome/browser/ui/app_list/search/arc/arc_playstore_search_result.h"
+
+#include <utility>
+
+#include "base/memory/ptr_util.h"
+#include "base/strings/utf_string_conversions.h"
+#include "chrome/browser/image_decoder.h"
+#include "chrome/browser/profiles/profile.h"
+#include "chrome/browser/ui/app_list/arc/arc_playstore_app_context_menu.h"
+#include "chrome/grit/component_extension_resources.h"
+#include "components/arc/arc_bridge_service.h"
+#include "components/arc/arc_service_manager.h"
+#include "components/arc/common/app.mojom.h"
+#include "components/crx_file/id_util.h"
+#include "content/public/browser/browser_thread.h"
+#include "ui/app_list/app_list_constants.h"
+#include "ui/app_list/vector_icons.h"
+#include "ui/gfx/codec/png_codec.h"
+#include "ui/gfx/geometry/size.h"
+#include "ui/gfx/image/image_skia_operations.h"
+#include "ui/gfx/image/image_skia_rep.h"
+#include "ui/gfx/image/image_skia_source.h"
+#include "ui/gfx/paint_vector_icon.h"
+
+using content::BrowserThread;
+
+namespace {
+// The id prefix to identify a Play Store search result.
+constexpr char kPlayAppPrefix[] = "play://";
+}  // namespace
+
+namespace app_list {
+
+////////////////////////////////////////////////////////////////////////////////
+// IconSource
+
+class IconSource : public gfx::ImageSkiaSource {
+ public:
+  IconSource(const SkBitmap& decoded_bitmap, int resource_size_in_dip);

[xiyuan, 2017/06/23 19:57:38]

Prefer to have only one constructor and add a SetDecodedImage method.

[Jiaquan He, 2017/06/23 21:10:32]

Done.

+  explicit IconSource(int resource_size_in_dip);
+  ~IconSource() override = default;
+
+ private:
+  gfx::ImageSkiaRep GetImageForScale(float scale) override;
+
+  const int resource_size_in_dip_;
+  std::unique_ptr<gfx::ImageSkia> decoded_icon_;

[xiyuan, 2017/06/23 19:57:38]

std::unique_ptr<> is not necessary. We can test empty ImageSkia by checking
.isNull().

[Jiaquan He, 2017/06/23 21:10:32]

Done.

+
+  DISALLOW_COPY_AND_ASSIGN(IconSource);
+};
+
+IconSource::IconSource(const SkBitmap& decoded_bitmap, int resource_size_in_dip)
+    : resource_size_in_dip_(resource_size_in_dip) {
+  decoded_icon_ = base::MakeUnique<gfx::ImageSkia>();
+  decoded_icon_->AddRepresentation(gfx::ImageSkiaRep(
+      decoded_bitmap, ui::GetScaleForScaleFactor(ui::SCALE_FACTOR_100P)));
+}
+
+IconSource::IconSource(int resource_size_in_dip)
+    : resource_size_in_dip_(resource_size_in_dip) {}
+
+gfx::ImageSkiaRep IconSource::GetImageForScale(float scale) {
+  DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
+
+  // We use the icon if it was decoded successfully, otherwise use the default
+  // ARC icon.
+  const gfx::ImageSkia* icon_to_scale;
+  if (decoded_icon_ != nullptr) {
+    icon_to_scale = decoded_icon_.get();
+  } else {
+    int resource_id =
+        scale >= 1.5f ? IDR_ARC_SUPPORT_ICON_96 : IDR_ARC_SUPPORT_ICON_48;
+    icon_to_scale =
+        ResourceBundle::GetSharedInstance().GetImageSkiaNamed(resource_id);
+  }
+  DCHECK(icon_to_scale);
+
+  gfx::ImageSkia resized_image = gfx::ImageSkiaOperations::CreateResizedImage(
+      *icon_to_scale, skia::ImageOperations::RESIZE_BEST,
+      gfx::Size(resource_size_in_dip_, resource_size_in_dip_));
+  return resized_image.GetRepresentation(scale);
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// IconDecodeRequest
+
+class ArcPlayStoreSearchResult::IconDecodeRequest
+    : public ImageDecoder::ImageRequest {
+ public:
+  explicit IconDecodeRequest(ArcPlayStoreSearchResult* search_result)
+      : search_result_(search_result) {}
+  ~IconDecodeRequest() override = default;
+
+  // ImageDecoder::ImageRequest overrides.
+  void OnImageDecoded(const SkBitmap& bitmap) override {
+    DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
+
+    gfx::Size resource_size(app_list::kGridIconDimension,
+                            app_list::kGridIconDimension);
+    gfx::ImageSkia icon = gfx::ImageSkia(
+        new IconSource(bitmap, app_list::kGridIconDimension), resource_size);
+    icon.EnsureRepsForSupportedScales();
+
+    search_result_->SetIcon(icon);
+  }
+
+  void OnDecodeImageFailed() override {
+    DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
+    DLOG(ERROR) << "Failed to decode an app icon image.";
+
+    gfx::Size resource_size(app_list::kGridIconDimension,
+                            app_list::kGridIconDimension);
+    gfx::ImageSkia icon = gfx::ImageSkia(
+        new IconSource(app_list::kGridIconDimension), resource_size);
+    icon.EnsureRepsForSupportedScales();
+
+    search_result_->SetIcon(icon);
+  }
+
+ private:
+  // ArcPlayStoreSearchResult owns IconDecodeRequest, so it will outlive this.
+  ArcPlayStoreSearchResult* const search_result_;
+
+  DISALLOW_COPY_AND_ASSIGN(IconDecodeRequest);
+};
+
+////////////////////////////////////////////////////////////////////////////////
+// ArcPlayStoreSearchResult
+
+namespace {
+// Badge icon color, #000 at 54% opacity.
+constexpr SkColor kBadgeColor = SkColorSetARGBMacro(0x8A, 0x00, 0x00, 0x00);

[xiyuan, 2017/06/23 19:57:38]

This is used in one place. Move it close to where it is used. Or put it around
kPlayAppPrefix to avoid having to anonymous namespace section.

[Jiaquan He, 2017/06/23 21:10:32]

Done. Moved under kPlayAppPrefix

+}  // namespace
+
+ArcPlayStoreSearchResult::ArcPlayStoreSearchResult(
+    arc::mojom::AppDiscoveryResultPtr data,
+    Profile* profile,
+    AppListControllerDelegate* list_controller)
+    : data_(std::move(data)),
+      profile_(profile),
+      list_controller_(list_controller),
+      weak_ptr_factory_(this) {

[xiyuan, 2017/06/23 19:57:38]

weak_ptr_factory_ seems not used.

[Jiaquan He, 2017/06/23 21:10:31]

Done. Removed.

+  set_title(base::UTF8ToUTF16(label().value()));
+  set_id(kPlayAppPrefix +
+         crx_file::id_util::GenerateId(install_intent_uri().value()));
+  set_display_type(DISPLAY_TILE);
+  SetBadgeIcon(gfx::CreateVectorIcon(
+      is_instant_app() ? kIcBadgeInstantIcon : kIcBadgePlayIcon,
+      kAppBadgeIconSize, kBadgeColor));
+  SetFormattedPrice(base::UTF8ToUTF16(formatted_price().value()));
+  SetRating(review_score());
+
+  icon_decode_request_ = base::MakeUnique<IconDecodeRequest>(this);
+  ImageDecoder::StartWithOptions(icon_decode_request_.get(), icon_png_data(),
+                                 ImageDecoder::DEFAULT_CODEC, true,
+                                 gfx::Size());
+}
+
+ArcPlayStoreSearchResult::~ArcPlayStoreSearchResult() = default;
+
+std::unique_ptr<SearchResult> ArcPlayStoreSearchResult::Duplicate() const {
+  std::unique_ptr<ArcPlayStoreSearchResult> result =
+      base::MakeUnique<ArcPlayStoreSearchResult>(data_.Clone(), profile_,
+                                                 list_controller_);
+  result->SetIcon(icon());
+  return result;
+}
+
+void ArcPlayStoreSearchResult::Open(int event_flags) {
+  arc::mojom::AppInstance* app_instance =
+      arc::ArcServiceManager::Get()
+          ? ARC_GET_INSTANCE_FOR_METHOD(
+                arc::ArcServiceManager::Get()->arc_bridge_service()->app(),
+                LaunchIntent)
+          : nullptr;
+  if (app_instance == nullptr)
+    return;
+
+  app_instance->LaunchIntent(install_intent_uri().value(),
+                             base::Optional<gfx::Rect>());
+}
+
+ui::MenuModel* ArcPlayStoreSearchResult::GetContextMenuModel() {
+  context_menu_ = base::MakeUnique<ArcPlayStoreAppContextMenu>(
+      this, profile_, list_controller_);
+  return context_menu_->GetMenuModel();
+}
+
+void ArcPlayStoreSearchResult::ExecuteLaunchCommand(int event_flags) {
+  Open(event_flags);
+}
+
+}  // namespace app_list