electron/shell/common/api/electron_api_native_image.h
trop[bot] e92eb210bb
refactor: declare gin::Wrapper subclasses as final (#43565)
As per the gin docs: "Wrappable<T> explicitly does not support further
subclassing of T. Subclasses of Wrappable<T> should be declared final."

Co-authored-by: trop[bot] <37223003+trop[bot]@users.noreply.github.com>
Co-authored-by: Charles Kerr <charles@charleskerr.com>
2024-09-04 21:26:25 -05:00

148 lines
4.6 KiB
C++

// Copyright (c) 2015 GitHub, Inc.
// Use of this source code is governed by the MIT license that can be
// found in the LICENSE file.
#ifndef ELECTRON_SHELL_COMMON_API_ELECTRON_API_NATIVE_IMAGE_H_
#define ELECTRON_SHELL_COMMON_API_ELECTRON_API_NATIVE_IMAGE_H_
#include <string>
#include <vector>
#include "base/containers/flat_map.h"
#include "base/memory/raw_ptr.h"
#include "base/values.h"
#include "gin/wrappable.h"
#include "ui/gfx/image/image.h"
#include "ui/gfx/image/image_skia_rep.h"
#if BUILDFLAG(IS_WIN)
#include "base/files/file_path.h"
#include "base/win/scoped_gdi_object.h"
#endif
class GURL;
namespace base {
class FilePath;
} // namespace base
namespace gfx {
class Rect;
class Size;
} // namespace gfx
namespace gin {
class Arguments;
template <typename T>
class Handle;
} // namespace gin
namespace gin_helper {
class Dictionary;
class ErrorThrower;
} // namespace gin_helper
namespace electron::api {
class NativeImage final : public gin::Wrappable<NativeImage> {
public:
NativeImage(v8::Isolate* isolate, const gfx::Image& image);
#if BUILDFLAG(IS_WIN)
NativeImage(v8::Isolate* isolate, const base::FilePath& hicon_path);
#endif
~NativeImage() override;
// disable copy
NativeImage(const NativeImage&) = delete;
NativeImage& operator=(const NativeImage&) = delete;
static gin::Handle<NativeImage> CreateEmpty(v8::Isolate* isolate);
static gin::Handle<NativeImage> Create(v8::Isolate* isolate,
const gfx::Image& image);
static gin::Handle<NativeImage> CreateFromPNG(v8::Isolate* isolate,
const char* buffer,
size_t length);
static gin::Handle<NativeImage> CreateFromJPEG(v8::Isolate* isolate,
const char* buffer,
size_t length);
static gin::Handle<NativeImage> CreateFromPath(v8::Isolate* isolate,
const base::FilePath& path);
static gin::Handle<NativeImage> CreateFromBitmap(
gin_helper::ErrorThrower thrower,
v8::Local<v8::Value> buffer,
const gin_helper::Dictionary& options);
static gin::Handle<NativeImage> CreateFromBuffer(
gin_helper::ErrorThrower thrower,
v8::Local<v8::Value> buffer,
gin::Arguments* args);
static gin::Handle<NativeImage> CreateFromDataURL(v8::Isolate* isolate,
const GURL& url);
static gin::Handle<NativeImage> CreateFromNamedImage(gin::Arguments* args,
std::string name);
#if !BUILDFLAG(IS_LINUX)
static v8::Local<v8::Promise> CreateThumbnailFromPath(
v8::Isolate* isolate,
const base::FilePath& path,
const gfx::Size& size);
#endif
enum class OnConvertError { kThrow, kWarn };
static bool TryConvertNativeImage(
v8::Isolate* isolate,
v8::Local<v8::Value> image,
NativeImage** native_image,
OnConvertError on_error = OnConvertError::kThrow);
// gin::Wrappable
static gin::WrapperInfo kWrapperInfo;
gin::ObjectTemplateBuilder GetObjectTemplateBuilder(
v8::Isolate* isolate) override;
const char* GetTypeName() override;
#if BUILDFLAG(IS_WIN)
HICON GetHICON(int size);
#endif
const gfx::Image& image() const { return image_; }
private:
v8::Local<v8::Value> ToPNG(gin::Arguments* args);
v8::Local<v8::Value> ToJPEG(v8::Isolate* isolate, int quality);
v8::Local<v8::Value> ToBitmap(gin::Arguments* args);
std::vector<float> GetScaleFactors();
v8::Local<v8::Value> GetBitmap(gin::Arguments* args);
v8::Local<v8::Value> GetNativeHandle(gin_helper::ErrorThrower thrower);
gin::Handle<NativeImage> Resize(gin::Arguments* args,
base::Value::Dict options);
gin::Handle<NativeImage> Crop(v8::Isolate* isolate, const gfx::Rect& rect);
std::string ToDataURL(gin::Arguments* args);
bool IsEmpty();
gfx::Size GetSize(const std::optional<float> scale_factor);
float GetAspectRatio(const std::optional<float> scale_factor);
void AddRepresentation(const gin_helper::Dictionary& options);
void UpdateExternalAllocatedMemoryUsage();
// Mark the image as template image.
void SetTemplateImage(bool setAsTemplate);
// Determine if the image is a template image.
bool IsTemplateImage();
#if BUILDFLAG(IS_WIN)
base::FilePath hicon_path_;
// size -> hicon
base::flat_map<int, base::win::ScopedHICON> hicons_;
#endif
gfx::Image image_;
raw_ptr<v8::Isolate> isolate_;
int32_t memory_usage_ = 0;
};
} // namespace electron::api
#endif // ELECTRON_SHELL_COMMON_API_ELECTRON_API_NATIVE_IMAGE_H_