Move //mojo/examples to //examples

mojo/examples/png_viewer/png_viewer.cc

Index: mojo/examples/png_viewer/png_viewer.cc
diff --git a/mojo/examples/png_viewer/png_viewer.cc b/mojo/examples/png_viewer/png_viewer.cc
deleted file mode 100644
index 42323a3abd85ec23fc127b241981048f9340248b..0000000000000000000000000000000000000000
--- a/mojo/examples/png_viewer/png_viewer.cc
+++ /dev/null
@@ -1,249 +0,0 @@
-// Copyright 2014 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 <algorithm>
-
-#include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/message_loop/message_loop.h"
-#include "base/strings/string_tokenizer.h"
-#include "mojo/application/application_runner_chromium.h"
-#include "mojo/examples/bitmap_uploader/bitmap_uploader.h"
-#include "mojo/examples/media_viewer/media_viewer.mojom.h"
-#include "mojo/public/c/system/main.h"
-#include "mojo/public/cpp/application/application_connection.h"
-#include "mojo/public/cpp/application/application_delegate.h"
-#include "mojo/public/cpp/application/application_impl.h"
-#include "mojo/public/cpp/application/interface_factory_impl.h"
-#include "mojo/public/cpp/application/service_provider_impl.h"
-#include "mojo/services/public/cpp/view_manager/types.h"
-#include "mojo/services/public/cpp/view_manager/view.h"
-#include "mojo/services/public/cpp/view_manager/view_manager.h"
-#include "mojo/services/public/cpp/view_manager/view_manager_client_factory.h"
-#include "mojo/services/public/cpp/view_manager/view_manager_delegate.h"
-#include "mojo/services/public/cpp/view_manager/view_observer.h"
-#include "mojo/services/public/interfaces/content_handler/content_handler.mojom.h"
-#include "skia/ext/platform_canvas.h"
-#include "skia/ext/refptr.h"
-#include "third_party/skia/include/core/SkBitmap.h"
-#include "third_party/skia/include/core/SkCanvas.h"
-#include "third_party/skia/include/core/SkPaint.h"
-#include "third_party/skia/include/core/SkScalar.h"
-#include "ui/gfx/codec/png_codec.h"
-
-namespace mojo {
-namespace examples {
-
-class PNGViewer;
-
-// TODO(aa): Hook up ZoomableMedia interface again.
-class PNGView : public ViewManagerDelegate, public ViewObserver {
- public:
-  static void Spawn(URLResponsePtr response,
-                    ServiceProviderImpl* exported_services,
-                    scoped_ptr<ServiceProvider> imported_services,
-                    Shell* shell) {
-    // PNGView deletes itself when its View is destroyed.
-    new PNGView(
-        response.Pass(), exported_services, imported_services.Pass(), shell);
-  }
-
- private:
-  static const uint16_t kMaxZoomPercentage = 400;
-  static const uint16_t kMinZoomPercentage = 20;
-  static const uint16_t kDefaultZoomPercentage = 100;
-  static const uint16_t kZoomStep = 20;
-
-  PNGView(URLResponsePtr response,
-          ServiceProviderImpl* exported_services,
-          scoped_ptr<ServiceProvider> imported_services,
-          Shell* shell)
-      : imported_services_(imported_services.Pass()),
-        shell_(shell),
-        root_(nullptr),
-        view_manager_client_factory_(shell, this),
-        zoom_percentage_(kDefaultZoomPercentage) {
-    exported_services->AddService(&view_manager_client_factory_);
-    DecodePNG(response.Pass());
-  }
-
-  virtual ~PNGView() {
-    if (root_)
-      root_->RemoveObserver(this);
-  }
-
-  // Overridden from ViewManagerDelegate:
-  virtual void OnEmbed(ViewManager* view_manager,
-                       View* root,
-                       ServiceProviderImpl* exported_services,
-                       scoped_ptr<ServiceProvider> imported_services) override {
-    root_ = root;
-    root_->AddObserver(this);
-    bitmap_uploader_.reset(new BitmapUploader(root_));
-    bitmap_uploader_->Init(shell_);
-    bitmap_uploader_->SetColor(SK_ColorGRAY);
-    if (!bitmap_.isNull())
-      DrawBitmap();
-  }
-
-  virtual void OnViewManagerDisconnected(ViewManager* view_manager) override {
-    // TODO(aa): Need to figure out how shutdown works.
-  }
-
-  // Overridden from ViewObserver:
-  virtual void OnViewBoundsChanged(View* view,
-                                   const Rect& old_bounds,
-                                   const Rect& new_bounds) override {
-    DCHECK_EQ(view, root_);
-    DrawBitmap();
-  }
-
-  virtual void OnViewDestroyed(View* view) override {
-    DCHECK_EQ(view, root_);
-    delete this;
-  }
-
-  void DecodePNG(URLResponsePtr response) {
-    int content_length = GetContentLength(response->headers);
-    scoped_ptr<unsigned char[]> data(new unsigned char[content_length]);
-    unsigned char* buf = data.get();
-    uint32_t bytes_remaining = content_length;
-    uint32_t num_bytes = bytes_remaining;
-    while (bytes_remaining > 0) {
-      MojoResult result = ReadDataRaw(
-          response->body.get(), buf, &num_bytes, MOJO_READ_DATA_FLAG_NONE);
-      if (result == MOJO_RESULT_SHOULD_WAIT) {
-        Wait(response->body.get(),
-             MOJO_HANDLE_SIGNAL_READABLE,
-             MOJO_DEADLINE_INDEFINITE);
-      } else if (result == MOJO_RESULT_OK) {
-        buf += num_bytes;
-        num_bytes = bytes_remaining -= num_bytes;
-      } else {
-        break;
-      }
-    }
-
-    gfx::PNGCodec::Decode(static_cast<const unsigned char*>(data.get()),
-                          content_length,
-                          &bitmap_);
-  }
-
-  void DrawBitmap() {
-    if (!root_)
-      return;
-
-    skia::RefPtr<SkCanvas> canvas(skia::AdoptRef(skia::CreatePlatformCanvas(
-        root_->bounds().width, root_->bounds().height, true)));
-    canvas->drawColor(SK_ColorGRAY);
-    SkPaint paint;
-    SkScalar scale =
-        SkFloatToScalar(zoom_percentage_ * 1.0f / kDefaultZoomPercentage);
-    canvas->scale(scale, scale);
-    canvas->drawBitmap(bitmap_, 0, 0, &paint);
-    bitmap_uploader_->SetBitmap(
-        skia::GetTopDevice(*canvas)->accessBitmap(true));
-  }
-
-  void ZoomIn() {
-    if (zoom_percentage_ >= kMaxZoomPercentage)
-      return;
-    zoom_percentage_ += kZoomStep;
-    DrawBitmap();
-  }
-
-  void ZoomOut() {
-    if (zoom_percentage_ <= kMinZoomPercentage)
-      return;
-    zoom_percentage_ -= kZoomStep;
-    DrawBitmap();
-  }
-
-  void ZoomToActualSize() {
-    if (zoom_percentage_ == kDefaultZoomPercentage)
-      return;
-    zoom_percentage_ = kDefaultZoomPercentage;
-    DrawBitmap();
-  }
-
-  int GetContentLength(const Array<String>& headers) {
-    for (size_t i = 0; i < headers.size(); ++i) {
-      base::StringTokenizer t(headers[i], ": ;=");
-      while (t.GetNext()) {
-        if (!t.token_is_delim() && t.token() == "Content-Length") {
-          while (t.GetNext()) {
-            if (!t.token_is_delim())
-              return atoi(t.token().c_str());
-          }
-        }
-      }
-    }
-    return 0;
-  }
-
-  SkBitmap bitmap_;
-  scoped_ptr<ServiceProvider> imported_services_;
-  Shell* shell_;
-  View* root_;
-  ViewManagerClientFactory view_manager_client_factory_;
-  uint16_t zoom_percentage_;
-  scoped_ptr<BitmapUploader> bitmap_uploader_;
-
-  DISALLOW_COPY_AND_ASSIGN(PNGView);
-};
-
-class ContentHandlerImpl : public InterfaceImpl<ContentHandler> {
- public:
-  explicit ContentHandlerImpl(Shell* shell) : shell_(shell) {}
-  virtual ~ContentHandlerImpl() {}
-
- private:
-  // Overridden from ContentHandler:
-  virtual void OnConnect(
-      const mojo::String& requestor_url,
-      URLResponsePtr response,
-      InterfaceRequest<ServiceProvider> service_provider) override {
-    ServiceProviderImpl* exported_services = new ServiceProviderImpl();
-    BindToRequest(exported_services, &service_provider);
-    scoped_ptr<ServiceProvider> remote(
-        exported_services->CreateRemoteServiceProvider());
-    PNGView::Spawn(response.Pass(), exported_services, remote.Pass(), shell_);
-  }
-
-  Shell* shell_;
-
-  DISALLOW_COPY_AND_ASSIGN(ContentHandlerImpl);
-};
-
-class PNGViewer : public ApplicationDelegate {
- public:
-  PNGViewer() {}
- private:
-  // Overridden from ApplicationDelegate:
-  virtual void Initialize(ApplicationImpl* app) override {
-    content_handler_factory_.reset(
-        new InterfaceFactoryImplWithContext<ContentHandlerImpl, Shell>(
-            app->shell()));
-  }
-
-  // Overridden from ApplicationDelegate:
-  virtual bool ConfigureIncomingConnection(
-      ApplicationConnection* connection) override {
-    connection->AddService(content_handler_factory_.get());
-    return true;
-  }
-
-  scoped_ptr<InterfaceFactoryImplWithContext<ContentHandlerImpl, Shell> >
-      content_handler_factory_;
-
-  DISALLOW_COPY_AND_ASSIGN(PNGViewer);
-};
-
-}  // namespace examples
-}  // namespace mojo
-
-MojoResult MojoMain(MojoHandle shell_handle) {
-  mojo::ApplicationRunnerChromium runner(new mojo::examples::PNGViewer);
-  return runner.Run(shell_handle);
-}