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Add fallback Linux UI for when GTK 3.20 isn't available
The minimum required version of GTK is 3.20 after [1] since all supported distros have it available. However, we still have some infra without GTK 3.20, so this CL adds a fallback codepath for when GTK 3.20 isn't available. This CL incidentally makes GTK an optional dependency in Chrome. For now, the manual dependency will be kept in the deb/rpm packages. [1] https://crrev.com/1104801 R=thestig,sky Change-Id: I6f30b7298a13a75602b98547bdfbf9dbc6bab99b Bug: b/270232634 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4295455 Reviewed-by: Scott Violet <sky@chromium.org> Commit-Queue: Thomas Anderson <thomasanderson@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org> Cr-Commit-Position: refs/heads/main@{#1111248}
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| Original file line number | Diff line number | Diff line change |
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| // Copyright 2023 The Chromium Authors | ||
| // Use of this source code is governed by a BSD-style license that can be | ||
| // found in the LICENSE file. | ||
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| #include "ui/linux/fallback_linux_ui.h" | ||
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| #include "base/time/time.h" | ||
| #include "ui/events/keycodes/dom/dom_keyboard_layout_map.h" | ||
| #include "ui/gfx/color_palette.h" | ||
| #include "ui/gfx/geometry/size.h" | ||
| #include "ui/gfx/image/image.h" | ||
| #include "ui/gfx/platform_font.h" | ||
| #include "ui/native_theme/native_theme.h" | ||
| #include "ui/shell_dialogs/select_file_policy.h" | ||
| #include "ui/views/controls/textfield/textfield.h" | ||
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| namespace ui { | ||
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| FallbackLinuxUi::FallbackLinuxUi() { | ||
| gfx::FontRenderParamsQuery query; | ||
| query.pixel_size = gfx::PlatformFont::kDefaultBaseFontSize; | ||
| query.style = gfx::Font::NORMAL; | ||
| query.weight = gfx::Font::Weight::NORMAL; | ||
| query.device_scale_factor = GetDeviceScaleFactor(); | ||
| default_font_render_params_ = | ||
| gfx::GetFontRenderParams(query, &default_font_family_); | ||
| } | ||
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| FallbackLinuxUi::~FallbackLinuxUi() = default; | ||
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| std::unique_ptr<ui::LinuxInputMethodContext> | ||
| FallbackLinuxUi::CreateInputMethodContext( | ||
| ui::LinuxInputMethodContextDelegate* delegate) const { | ||
| // Fallback to FakeInputMethodContext. | ||
| return nullptr; | ||
| } | ||
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| gfx::FontRenderParams FallbackLinuxUi::GetDefaultFontRenderParams() const { | ||
| return default_font_render_params_; | ||
| } | ||
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| void FallbackLinuxUi::GetDefaultFontDescription( | ||
| std::string* family_out, | ||
| int* size_pixels_out, | ||
| int* style_out, | ||
| int* weight_out, | ||
| gfx::FontRenderParams* params_out) const { | ||
| *family_out = default_font_family_; | ||
| *size_pixels_out = gfx::PlatformFont::kDefaultBaseFontSize; | ||
| *style_out = gfx::Font::NORMAL; | ||
| *weight_out = static_cast<int>(gfx::Font::Weight::NORMAL); | ||
| *params_out = GetDefaultFontRenderParams(); | ||
| } | ||
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| ui::SelectFileDialog* FallbackLinuxUi::CreateSelectFileDialog( | ||
| void* listener, | ||
| std::unique_ptr<ui::SelectFilePolicy> policy) const { | ||
| // The toolkit select file dialog is a last choice used only when | ||
| // the freedesktop portal interface isn't available and the desktop | ||
| // isn't KDE. If neither condition is met, a dialog won't be created. | ||
| NOTIMPLEMENTED(); | ||
| return nullptr; | ||
| } | ||
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| bool FallbackLinuxUi::Initialize() { | ||
| return true; | ||
| } | ||
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| bool FallbackLinuxUi::GetColor(int id, | ||
| SkColor* color, | ||
| bool use_custom_frame) const { | ||
| return false; | ||
| } | ||
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| bool FallbackLinuxUi::GetDisplayProperty(int id, int* result) const { | ||
| return false; | ||
| } | ||
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| void FallbackLinuxUi::GetFocusRingColor(SkColor* color) const {} | ||
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| void FallbackLinuxUi::GetActiveSelectionBgColor(SkColor* color) const {} | ||
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| void FallbackLinuxUi::GetActiveSelectionFgColor(SkColor* color) const {} | ||
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| void FallbackLinuxUi::GetInactiveSelectionBgColor(SkColor* color) const {} | ||
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| void FallbackLinuxUi::GetInactiveSelectionFgColor(SkColor* color) const {} | ||
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| base::TimeDelta FallbackLinuxUi::GetCursorBlinkInterval() const { | ||
| return views::Textfield::GetCaretBlinkInterval(); | ||
| } | ||
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| gfx::Image FallbackLinuxUi::GetIconForContentType( | ||
| const std::string& content_type, | ||
| int size, | ||
| float scale) const { | ||
| // Fallback to using generic icons. | ||
| return gfx::Image(); | ||
| } | ||
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| LinuxUi::WindowFrameAction FallbackLinuxUi::GetWindowFrameAction( | ||
| WindowFrameActionSource source) { | ||
| switch (source) { | ||
| case WindowFrameActionSource::kDoubleClick: | ||
| return WindowFrameAction::kToggleMaximize; | ||
| case WindowFrameActionSource::kMiddleClick: | ||
| return WindowFrameAction::kNone; | ||
| case WindowFrameActionSource::kRightClick: | ||
| return WindowFrameAction::kMenu; | ||
| } | ||
| } | ||
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| float FallbackLinuxUi::GetDeviceScaleFactor() const { | ||
| return 1.0f; | ||
| } | ||
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| bool FallbackLinuxUi::PreferDarkTheme() const { | ||
| return false; | ||
| } | ||
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| bool FallbackLinuxUi::AnimationsEnabled() const { | ||
| return true; | ||
| } | ||
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| void FallbackLinuxUi::AddWindowButtonOrderObserver( | ||
| ui::WindowButtonOrderObserver* observer) {} | ||
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| void FallbackLinuxUi::RemoveWindowButtonOrderObserver( | ||
| ui::WindowButtonOrderObserver* observer) {} | ||
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| std::unique_ptr<ui::NavButtonProvider> | ||
| FallbackLinuxUi::CreateNavButtonProvider() { | ||
| return nullptr; | ||
| } | ||
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| ui::WindowFrameProvider* FallbackLinuxUi::GetWindowFrameProvider( | ||
| bool solid_frame) { | ||
| return nullptr; | ||
| } | ||
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| base::flat_map<std::string, std::string> | ||
| FallbackLinuxUi::GetKeyboardLayoutMap() { | ||
| return ui::GenerateDomKeyboardLayoutMap(); | ||
| } | ||
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| std::string FallbackLinuxUi::GetCursorThemeName() { | ||
| // This is only used on X11 where QT obtains the cursor theme from XSettings. | ||
| // However, ui/base/x/x11_cursor_loader.cc already handles this. | ||
| return std::string(); | ||
| } | ||
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| int FallbackLinuxUi::GetCursorThemeSize() { | ||
| // This is only used on X11 where QT obtains the cursor size from XSettings. | ||
| // However, ui/base/x/x11_cursor_loader.cc already handles this. | ||
| return 0; | ||
| } | ||
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| ui::NativeTheme* FallbackLinuxUi::GetNativeTheme() const { | ||
| return ui::NativeTheme::GetInstanceForNativeUi(); | ||
| } | ||
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| bool FallbackLinuxUi::GetTextEditCommandsForEvent( | ||
| const ui::Event& event, | ||
| std::vector<ui::TextEditCommandAuraLinux>* commands) { | ||
| return false; | ||
| } | ||
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| #if BUILDFLAG(ENABLE_PRINTING) | ||
| printing::PrintDialogLinuxInterface* FallbackLinuxUi::CreatePrintDialog( | ||
| printing::PrintingContextLinux* context) { | ||
| // A print dialog won't be created. Chrome's print dialog (Ctrl-P) | ||
| // should be used instead of the system (Ctrl-Shift-P) dialog. | ||
| NOTIMPLEMENTED(); | ||
| return nullptr; | ||
| } | ||
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| gfx::Size FallbackLinuxUi::GetPdfPaperSize( | ||
| printing::PrintingContextLinux* context) { | ||
| return gfx::Size(); | ||
| } | ||
| #endif | ||
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| } // namespace ui |
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