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// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef UI_QT_QT_UI_H_
#define UI_QT_QT_UI_H_
#include <memory>
#include "base/component_export.h"
#include "base/memory/weak_ptr.h"
#include "printing/buildflags/buildflags.h"
#include "third_party/abseil-cpp/absl/types/optional.h"
#include "ui/color/color_provider.h"
#include "ui/color/color_provider_key.h"
#include "ui/gfx/font_render_params.h"
#include "ui/linux/linux_ui.h"
#include "ui/qt/qt_interface.h"
#if BUILDFLAG(ENABLE_PRINTING)
#include "printing/printing_context_linux.h" // nogncheck
#endif
namespace qt {
class QtNativeTheme;
// Interface to QT desktop features.
class QtUi : public ui::LinuxUiAndTheme, QtInterface::Delegate {
public:
explicit QtUi(ui::LinuxUi* fallback_linux_ui);
QtUi(const QtUi&) = delete;
QtUi& operator=(const QtUi&) = delete;
~QtUi() override;
// ui::LinuxUi:
bool Initialize() override;
base::TimeDelta GetCursorBlinkInterval() const override;
gfx::Image GetIconForContentType(const std::string& content_type,
int size,
float scale) const override;
base::flat_map<std::string, std::string> GetKeyboardLayoutMap() override;
#if BUILDFLAG(ENABLE_PRINTING)
printing::PrintDialogLinuxInterface* CreatePrintDialog(
printing::PrintingContextLinux* context) override;
gfx::Size GetPdfPaperSize(printing::PrintingContextLinux* context) override;
#endif
ui::SelectFileDialog* CreateSelectFileDialog(
void* listener,
std::unique_ptr<ui::SelectFilePolicy> policy) const override;
std::string GetCursorThemeName() override;
int GetCursorThemeSize() override;
std::unique_ptr<ui::LinuxInputMethodContext> CreateInputMethodContext(
ui::LinuxInputMethodContextDelegate* delegate) const override;
bool GetTextEditCommandsForEvent(
const ui::Event& event,
int text_flags,
std::vector<ui::TextEditCommandAuraLinux>* commands) override;
gfx::FontRenderParams GetDefaultFontRenderParams() const override;
void GetDefaultFontDescription(
std::string* family_out,
int* size_pixels_out,
int* style_out,
int* weight_out,
gfx::FontRenderParams* params_out) const override;
bool AnimationsEnabled() const override;
void AddWindowButtonOrderObserver(
ui::WindowButtonOrderObserver* observer) override;
void RemoveWindowButtonOrderObserver(
ui::WindowButtonOrderObserver* observer) override;
WindowFrameAction GetWindowFrameAction(
WindowFrameActionSource source) override;
// ui::LinuxUiTheme:
ui::NativeTheme* GetNativeTheme() const override;
bool GetColor(int id, SkColor* color, bool use_custom_frame) const override;
bool GetDisplayProperty(int id, int* result) const override;
void GetFocusRingColor(SkColor* color) const override;
void GetActiveSelectionBgColor(SkColor* color) const override;
void GetActiveSelectionFgColor(SkColor* color) const override;
void GetInactiveSelectionBgColor(SkColor* color) const override;
void GetInactiveSelectionFgColor(SkColor* color) const override;
bool PreferDarkTheme() const override;
void SetDarkTheme(bool dark) override;
std::unique_ptr<ui::NavButtonProvider> CreateNavButtonProvider() override;
ui::WindowFrameProvider* GetWindowFrameProvider(bool solid_frame) override;
// QtInterface::Delegate:
void FontChanged() override;
void ThemeChanged() override;
void ScaleFactorMaybeChanged() override;
private:
void AddNativeColorMixer(ui::ColorProvider* provider,
const ui::ColorProviderKey& key);
void ScaleFactorMaybeChangedImpl();
absl::optional<SkColor> GetColor(int id, bool use_custom_frame) const;
// TODO(https://crbug.com/1317782): This is a fallback for any unimplemented
// functionality in the QT backend and should eventually be removed.
ui::LinuxUi* const fallback_linux_ui_;
// QT modifies argc and argv, and they must be kept alive while
// `shim_` is alive.
CmdLineArgs cmd_line_;
int qt_version_ = 0;
// Cached default font settings.
std::string font_family_;
int font_size_pixels_ = 0;
int font_size_points_ = 0;
gfx::Font::FontStyle font_style_ = gfx::Font::NORMAL;
int font_weight_;
gfx::FontRenderParams font_params_;
std::unique_ptr<QtInterface> shim_;
std::unique_ptr<QtNativeTheme> native_theme_;
bool scale_factor_task_active_ = false;
base::WeakPtrFactory<QtUi> weak_factory_{this};
};
// This should be the only symbol exported from this component.
COMPONENT_EXPORT(QT)
std::unique_ptr<ui::LinuxUiAndTheme> CreateQtUi(ui::LinuxUi* fallback_linux_ui);
} // namespace qt
#endif // UI_QT_QT_UI_H_
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