| // Copyright (c) 2012 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 "ui/gtk/gtk_ui.h" |
| |
| #include <cairo.h> |
| #include <pango/pango.h> |
| |
| #include <cmath> |
| #include <memory> |
| #include <set> |
| #include <utility> |
| |
| #include "base/command_line.h" |
| #include "base/containers/flat_map.h" |
| #include "base/debug/leak_annotations.h" |
| #include "base/environment.h" |
| #include "base/logging.h" |
| #include "base/nix/mime_util_xdg.h" |
| #include "base/nix/xdg_util.h" |
| #include "base/observer_list.h" |
| #include "base/strings/string_split.h" |
| #include "chrome/browser/themes/theme_properties.h" // nogncheck |
| #include "third_party/abseil-cpp/absl/types/optional.h" |
| #include "third_party/skia/include/core/SkBitmap.h" |
| #include "third_party/skia/include/core/SkColor.h" |
| #include "third_party/skia/include/core/SkShader.h" |
| #include "ui/base/glib/glib_cast.h" |
| #include "ui/base/ime/input_method.h" |
| #include "ui/base/ime/linux/fake_input_method_context.h" |
| #include "ui/base/ime/linux/linux_input_method_context.h" |
| #include "ui/color/color_id.h" |
| #include "ui/color/color_provider.h" |
| #include "ui/color/color_provider_manager.h" |
| #include "ui/display/display.h" |
| #include "ui/events/keycodes/dom/dom_code.h" |
| #include "ui/events/keycodes/dom/dom_keyboard_layout_manager.h" |
| #include "ui/events/keycodes/dom/keycode_converter.h" |
| #include "ui/gfx/font_render_params.h" |
| #include "ui/gfx/geometry/rect.h" |
| #include "ui/gfx/geometry/size.h" |
| #include "ui/gfx/geometry/skia_conversions.h" |
| #include "ui/gfx/image/image.h" |
| #include "ui/gfx/image/image_skia_rep.h" |
| #include "ui/gfx/image/image_skia_source.h" |
| #include "ui/gfx/skbitmap_operations.h" |
| #include "ui/gtk/gtk_compat.h" |
| #include "ui/gtk/gtk_key_bindings_handler.h" |
| #include "ui/gtk/gtk_ui_platform.h" |
| #include "ui/gtk/gtk_ui_platform_stub.h" |
| #include "ui/gtk/gtk_util.h" |
| #include "ui/gtk/input_method_context_impl_gtk.h" |
| #include "ui/gtk/native_theme_gtk.h" |
| #include "ui/gtk/nav_button_provider_gtk.h" |
| #include "ui/gtk/printing/print_dialog_gtk.h" |
| #include "ui/gtk/printing/printing_gtk_util.h" |
| #include "ui/gtk/select_file_dialog_linux_gtk.h" |
| #include "ui/gtk/settings_provider_gtk.h" |
| #include "ui/gtk/window_frame_provider_gtk.h" |
| #include "ui/linux/cursor_theme_manager_observer.h" |
| #include "ui/linux/device_scale_factor_observer.h" |
| #include "ui/linux/linux_ui.h" |
| #include "ui/linux/linux_ui_delegate.h" |
| #include "ui/linux/nav_button_provider.h" |
| #include "ui/linux/window_button_order_observer.h" |
| #include "ui/native_theme/native_theme.h" |
| #include "ui/ozone/buildflags.h" |
| #include "ui/ozone/public/ozone_platform.h" |
| #include "ui/shell_dialogs/select_file_dialog_linux.h" |
| #include "ui/shell_dialogs/select_file_policy.h" |
| #include "ui/shell_dialogs/shell_dialog_linux.h" |
| #include "ui/views/window/window_button_order_provider.h" |
| |
| #if defined(USE_GIO) |
| #include "ui/gtk/settings_provider_gsettings.h" |
| #endif |
| |
| #if BUILDFLAG(OZONE_PLATFORM_WAYLAND) |
| #define USE_WAYLAND |
| #endif |
| #if BUILDFLAG(OZONE_PLATFORM_X11) |
| #define USE_X11 |
| #endif |
| |
| #if defined(USE_WAYLAND) |
| #include "ui/gtk/wayland/gtk_ui_platform_wayland.h" |
| #endif |
| |
| #if defined(USE_X11) |
| #include "ui/gtk/x/gtk_ui_platform_x11.h" |
| #endif |
| |
| namespace gtk { |
| |
| namespace { |
| |
| // Stores the GtkUi singleton instance |
| const GtkUi* g_gtk_ui = nullptr; |
| |
| const double kDefaultDPI = 96; |
| |
| // Number of app indicators used (used as part of app-indicator id). |
| int indicators_count; |
| |
| // The unknown content type. |
| const char kUnknownContentType[] = "application/octet-stream"; |
| |
| std::unique_ptr<SettingsProvider> CreateSettingsProvider(GtkUi* gtk_ui) { |
| if (GtkCheckVersion(3, 14)) |
| return std::make_unique<SettingsProviderGtk>(gtk_ui); |
| #if defined(USE_GIO) |
| return std::make_unique<SettingsProviderGSettings>(gtk_ui); |
| #else |
| return nullptr; |
| #endif |
| } |
| |
| // Returns a gfx::FontRenderParams corresponding to GTK's configuration. |
| gfx::FontRenderParams GetGtkFontRenderParams() { |
| GtkSettings* gtk_settings = gtk_settings_get_default(); |
| CHECK(gtk_settings); |
| gint antialias = 0; |
| gint hinting = 0; |
| gchar* hint_style = nullptr; |
| gchar* rgba = nullptr; |
| g_object_get(gtk_settings, "gtk-xft-antialias", &antialias, "gtk-xft-hinting", |
| &hinting, "gtk-xft-hintstyle", &hint_style, "gtk-xft-rgba", |
| &rgba, nullptr); |
| |
| gfx::FontRenderParams params; |
| params.antialiasing = antialias != 0; |
| |
| if (hinting == 0 || !hint_style || strcmp(hint_style, "hintnone") == 0) { |
| params.hinting = gfx::FontRenderParams::HINTING_NONE; |
| } else if (strcmp(hint_style, "hintslight") == 0) { |
| params.hinting = gfx::FontRenderParams::HINTING_SLIGHT; |
| } else if (strcmp(hint_style, "hintmedium") == 0) { |
| params.hinting = gfx::FontRenderParams::HINTING_MEDIUM; |
| } else if (strcmp(hint_style, "hintfull") == 0) { |
| params.hinting = gfx::FontRenderParams::HINTING_FULL; |
| } else { |
| LOG(WARNING) << "Unexpected gtk-xft-hintstyle \"" << hint_style << "\""; |
| params.hinting = gfx::FontRenderParams::HINTING_NONE; |
| } |
| |
| if (!rgba || strcmp(rgba, "none") == 0) { |
| params.subpixel_rendering = gfx::FontRenderParams::SUBPIXEL_RENDERING_NONE; |
| } else if (strcmp(rgba, "rgb") == 0) { |
| params.subpixel_rendering = gfx::FontRenderParams::SUBPIXEL_RENDERING_RGB; |
| } else if (strcmp(rgba, "bgr") == 0) { |
| params.subpixel_rendering = gfx::FontRenderParams::SUBPIXEL_RENDERING_BGR; |
| } else if (strcmp(rgba, "vrgb") == 0) { |
| params.subpixel_rendering = gfx::FontRenderParams::SUBPIXEL_RENDERING_VRGB; |
| } else if (strcmp(rgba, "vbgr") == 0) { |
| params.subpixel_rendering = gfx::FontRenderParams::SUBPIXEL_RENDERING_VBGR; |
| } else { |
| LOG(WARNING) << "Unexpected gtk-xft-rgba \"" << rgba << "\""; |
| params.subpixel_rendering = gfx::FontRenderParams::SUBPIXEL_RENDERING_NONE; |
| } |
| |
| g_free(hint_style); |
| g_free(rgba); |
| |
| return params; |
| } |
| |
| ui::LinuxUi::WindowFrameAction GetDefaultMiddleClickAction() { |
| if (GtkCheckVersion(3, 14)) |
| return ui::LinuxUi::WindowFrameAction::kNone; |
| std::unique_ptr<base::Environment> env(base::Environment::Create()); |
| switch (base::nix::GetDesktopEnvironment(env.get())) { |
| case base::nix::DESKTOP_ENVIRONMENT_KDE4: |
| case base::nix::DESKTOP_ENVIRONMENT_KDE5: |
| // Starting with KDE 4.4, windows' titlebars can be dragged with the |
| // middle mouse button to create tab groups. We don't support that in |
| // Chrome, but at least avoid lowering windows in response to middle |
| // clicks to avoid surprising users who expect the KDE behavior. |
| return ui::LinuxUi::WindowFrameAction::kNone; |
| default: |
| return ui::LinuxUi::WindowFrameAction::kLower; |
| } |
| } |
| |
| std::unique_ptr<GtkUiPlatform> CreateGtkUiPlatform(ui::LinuxUiBackend backend) { |
| switch (backend) { |
| case ui::LinuxUiBackend::kStub: |
| return std::make_unique<GtkUiPlatformStub>(); |
| #if defined(USE_X11) |
| case ui::LinuxUiBackend::kX11: |
| return std::make_unique<GtkUiPlatformX11>(); |
| #endif |
| #if defined(USE_WAYLAND) |
| case ui::LinuxUiBackend::kWayland: |
| return std::make_unique<GtkUiPlatformWayland>(); |
| #endif |
| default: |
| NOTREACHED(); |
| return nullptr; |
| } |
| } |
| |
| } // namespace |
| |
| GtkUi::GtkUi() : window_frame_actions_() { |
| DCHECK(!g_gtk_ui); |
| g_gtk_ui = this; |
| } |
| |
| GtkUi::~GtkUi() { |
| DCHECK_EQ(g_gtk_ui, this); |
| g_gtk_ui = nullptr; |
| |
| shell_dialog_linux::Finalize(); |
| } |
| |
| // static |
| GtkUiPlatform* GtkUi::GetPlatform() { |
| DCHECK(g_gtk_ui) << "GtkUi instance is not set."; |
| return g_gtk_ui->platform_.get(); |
| } |
| |
| bool GtkUi::Initialize() { |
| if (!LoadGtk()) |
| return false; |
| |
| auto* delegate = ui::LinuxUiDelegate::GetInstance(); |
| DCHECK(delegate); |
| platform_ = CreateGtkUiPlatform(delegate->GetBackend()); |
| |
| // Avoid GTK initializing atk-bridge, and let AuraLinux implementation |
| // do it once it is ready. |
| std::unique_ptr<base::Environment> env(base::Environment::Create()); |
| env->SetVar("NO_AT_BRIDGE", "1"); |
| // gtk_init_check() modifies argv, so make a copy first. |
| CmdLineArgs cmd_line = CopyCmdLine(*base::CommandLine::ForCurrentProcess()); |
| if (!GtkInitFromCommandLine(&cmd_line.argc, cmd_line.argv.data())) |
| return false; |
| native_theme_ = NativeThemeGtk::instance(); |
| |
| // This creates an extra thread that may race against GtkInitFromCommandLine, |
| // so this must be done after to avoid the race condition. |
| shell_dialog_linux::Initialize(); |
| |
| using Action = ui::LinuxUi::WindowFrameAction; |
| using ActionSource = ui::LinuxUi::WindowFrameActionSource; |
| window_frame_actions_ = { |
| {ActionSource::kDoubleClick, Action::kToggleMaximize}, |
| {ActionSource::kMiddleClick, GetDefaultMiddleClickAction()}, |
| {ActionSource::kRightClick, Action::kMenu}}; |
| |
| GtkSettings* settings = gtk_settings_get_default(); |
| g_signal_connect_after(settings, "notify::gtk-theme-name", |
| G_CALLBACK(OnThemeChangedThunk), this); |
| g_signal_connect_after(settings, "notify::gtk-icon-theme-name", |
| G_CALLBACK(OnThemeChangedThunk), this); |
| g_signal_connect_after(settings, "notify::gtk-application-prefer-dark-theme", |
| G_CALLBACK(OnThemeChangedThunk), this); |
| g_signal_connect_after(settings, "notify::gtk-cursor-theme-name", |
| G_CALLBACK(OnCursorThemeNameChangedThunk), this); |
| g_signal_connect_after(settings, "notify::gtk-cursor-theme-size", |
| G_CALLBACK(OnCursorThemeSizeChangedThunk), this); |
| |
| // Listen for DPI changes. |
| auto* dpi_callback = G_CALLBACK(OnDeviceScaleFactorMaybeChangedThunk); |
| if (GtkCheckVersion(4)) { |
| g_signal_connect_after(settings, "notify::gtk-xft-dpi", dpi_callback, this); |
| } else { |
| GdkScreen* screen = gdk_screen_get_default(); |
| g_signal_connect_after(screen, "notify::resolution", dpi_callback, this); |
| } |
| |
| // Listen for scale factor changes. We would prefer to listen on |
| // a GdkScreen, but there is no scale-factor property, so use an |
| // unmapped window instead. |
| g_signal_connect(GetDummyWindow(), "notify::scale-factor", |
| G_CALLBACK(OnDeviceScaleFactorMaybeChangedThunk), this); |
| |
| LoadGtkValues(); |
| |
| // We must build this after GTK gets initialized. |
| settings_provider_ = CreateSettingsProvider(this); |
| |
| indicators_count = 0; |
| |
| platform_->OnInitialized(GetDummyWindow()); |
| |
| return true; |
| } |
| |
| bool GtkUi::GetColor(int id, SkColor* color, bool use_custom_frame) const { |
| for (const ColorMap& color_map : |
| {colors_, |
| use_custom_frame ? custom_frame_colors_ : native_frame_colors_}) { |
| auto it = color_map.find(id); |
| if (it != color_map.end()) { |
| *color = it->second; |
| return true; |
| } |
| } |
| |
| return false; |
| } |
| |
| bool GtkUi::GetDisplayProperty(int id, int* result) const { |
| if (id == ThemeProperties::SHOULD_FILL_BACKGROUND_TAB_COLOR) { |
| *result = 0; |
| return true; |
| } |
| return false; |
| } |
| |
| SkColor GtkUi::GetFocusRingColor() const { |
| return focus_ring_color_; |
| } |
| |
| SkColor GtkUi::GetActiveSelectionBgColor() const { |
| return active_selection_bg_color_; |
| } |
| |
| SkColor GtkUi::GetActiveSelectionFgColor() const { |
| return active_selection_fg_color_; |
| } |
| |
| SkColor GtkUi::GetInactiveSelectionBgColor() const { |
| return inactive_selection_bg_color_; |
| } |
| |
| SkColor GtkUi::GetInactiveSelectionFgColor() const { |
| return inactive_selection_fg_color_; |
| } |
| |
| base::TimeDelta GtkUi::GetCursorBlinkInterval() const { |
| // From http://library.gnome.org/devel/gtk/unstable/GtkSettings.html, this is |
| // the default value for gtk-cursor-blink-time. |
| static const gint kGtkDefaultCursorBlinkTime = 1200; |
| |
| // Dividing GTK's cursor blink cycle time (in milliseconds) by this value |
| // yields an appropriate value for |
| // blink::RendererPreferences::caret_blink_interval. |
| static const double kGtkCursorBlinkCycleFactor = 2000.0; |
| |
| gint cursor_blink_time = kGtkDefaultCursorBlinkTime; |
| gboolean cursor_blink = TRUE; |
| g_object_get(gtk_settings_get_default(), "gtk-cursor-blink-time", |
| &cursor_blink_time, "gtk-cursor-blink", &cursor_blink, nullptr); |
| return cursor_blink |
| ? base::Seconds(cursor_blink_time / kGtkCursorBlinkCycleFactor) |
| : base::TimeDelta(); |
| } |
| |
| gfx::Image GtkUi::GetIconForContentType(const std::string& content_type, |
| int dip_size, |
| float scale) const { |
| // This call doesn't take a reference. |
| GtkIconTheme* theme = GetDefaultIconTheme(); |
| |
| // GTK expects an integral scale. If `scale` is integral, pass it to GTK; |
| // otherwise pretend the scale is 1 and manually recalculate `size`. |
| int size; |
| int scale_int; |
| int scale_floor = base::ClampFloor(scale); |
| int scale_ceil = base::ClampCeil(scale); |
| if (scale_floor == scale_ceil) { |
| scale_int = scale_floor; |
| size = dip_size; |
| } else { |
| scale_int = 1; |
| size = scale * dip_size; |
| } |
| |
| std::string content_types[] = {content_type, kUnknownContentType}; |
| |
| for (size_t i = 0; i < std::size(content_types); ++i) { |
| auto icon = TakeGObject(g_content_type_get_icon(content_type.c_str())); |
| SkBitmap bitmap; |
| if (GtkCheckVersion(4)) { |
| auto icon_paintable = Gtk4IconThemeLookupByGicon( |
| theme, icon.get(), size, scale_int, GTK_TEXT_DIR_NONE, |
| static_cast<GtkIconLookupFlags>(0)); |
| if (!icon_paintable) |
| continue; |
| |
| auto* paintable = GlibCast<GdkPaintable>(icon_paintable.get(), |
| gdk_paintable_get_type()); |
| auto* snapshot = gtk_snapshot_new(); |
| gdk_paintable_snapshot(paintable, snapshot, size, size); |
| auto* node = gtk_snapshot_free_to_node(snapshot); |
| GdkTexture* texture = GetTextureFromRenderNode(node); |
| |
| bitmap.allocN32Pixels(gdk_texture_get_width(texture), |
| gdk_texture_get_height(texture)); |
| gdk_texture_download(texture, static_cast<guchar*>(bitmap.getAddr(0, 0)), |
| bitmap.rowBytes()); |
| |
| gsk_render_node_unref(node); |
| } else { |
| auto icon_info = Gtk3IconThemeLookupByGiconForScale( |
| theme, icon.get(), size, scale_int, |
| static_cast<GtkIconLookupFlags>(GTK_ICON_LOOKUP_FORCE_SIZE)); |
| if (!icon_info) |
| continue; |
| auto* surface = |
| gtk_icon_info_load_surface(icon_info.get(), nullptr, nullptr); |
| if (!surface) |
| continue; |
| DCHECK_EQ(cairo_surface_get_type(surface), CAIRO_SURFACE_TYPE_IMAGE); |
| DCHECK_EQ(cairo_image_surface_get_format(surface), CAIRO_FORMAT_ARGB32); |
| |
| SkImageInfo image_info = |
| SkImageInfo::Make(cairo_image_surface_get_width(surface), |
| cairo_image_surface_get_height(surface), |
| kBGRA_8888_SkColorType, kUnpremul_SkAlphaType); |
| if (!bitmap.installPixels( |
| image_info, cairo_image_surface_get_data(surface), |
| image_info.minRowBytes(), |
| [](void*, void* surface) { |
| cairo_surface_destroy( |
| reinterpret_cast<cairo_surface_t*>(surface)); |
| }, |
| surface)) { |
| continue; |
| } |
| } |
| gfx::ImageSkia image_skia = |
| gfx::ImageSkia::CreateFromBitmap(bitmap, scale_int); |
| image_skia.MakeThreadSafe(); |
| return gfx::Image(image_skia); |
| } |
| return gfx::Image(); |
| } |
| |
| void GtkUi::SetWindowButtonOrdering( |
| const std::vector<views::FrameButton>& leading_buttons, |
| const std::vector<views::FrameButton>& trailing_buttons) { |
| views::WindowButtonOrderProvider::GetInstance()->SetWindowButtonOrder( |
| leading_buttons, trailing_buttons); |
| |
| for (auto& observer : window_button_order_observer_list()) |
| observer.OnWindowButtonOrderingChange(); |
| } |
| |
| void GtkUi::SetWindowFrameAction(WindowFrameActionSource source, |
| WindowFrameAction action) { |
| window_frame_actions_[source] = action; |
| } |
| |
| std::unique_ptr<ui::LinuxInputMethodContext> GtkUi::CreateInputMethodContext( |
| ui::LinuxInputMethodContextDelegate* delegate) const { |
| return std::make_unique<InputMethodContextImplGtk>(delegate); |
| } |
| |
| gfx::FontRenderParams GtkUi::GetDefaultFontRenderParams() const { |
| static gfx::FontRenderParams params = GetGtkFontRenderParams(); |
| return params; |
| } |
| |
| void GtkUi::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 = default_font_size_pixels_; |
| *style_out = default_font_style_; |
| *weight_out = static_cast<int>(default_font_weight_); |
| *params_out = default_font_render_params_; |
| } |
| |
| ui::SelectFileDialog* GtkUi::CreateSelectFileDialog( |
| void* listener, |
| std::unique_ptr<ui::SelectFilePolicy> policy) const { |
| return new SelectFileDialogLinuxGtk( |
| static_cast<ui::SelectFileDialog::Listener*>(listener), |
| std::move(policy)); |
| } |
| |
| ui::LinuxUi::WindowFrameAction GtkUi::GetWindowFrameAction( |
| WindowFrameActionSource source) { |
| return window_frame_actions_[source]; |
| } |
| |
| bool GtkUi::PreferDarkTheme() const { |
| gboolean dark = false; |
| g_object_get(gtk_settings_get_default(), "gtk-application-prefer-dark-theme", |
| &dark, nullptr); |
| return dark; |
| } |
| |
| bool GtkUi::AnimationsEnabled() const { |
| gboolean animations_enabled = false; |
| g_object_get(gtk_settings_get_default(), "gtk-enable-animations", |
| &animations_enabled, nullptr); |
| return animations_enabled; |
| } |
| |
| std::unique_ptr<ui::NavButtonProvider> GtkUi::CreateNavButtonProvider() { |
| if (GtkCheckVersion(3, 14)) |
| return std::make_unique<gtk::NavButtonProviderGtk>(); |
| return nullptr; |
| } |
| |
| ui::WindowFrameProvider* GtkUi::GetWindowFrameProvider(bool solid_frame) { |
| if (!GtkCheckVersion(3, 14)) |
| return nullptr; |
| auto& provider = |
| solid_frame ? solid_frame_provider_ : transparent_frame_provider_; |
| if (!provider) |
| provider = std::make_unique<gtk::WindowFrameProviderGtk>(solid_frame); |
| return provider.get(); |
| } |
| |
| // Mapping from GDK dead keys to corresponding printable character. |
| static struct { |
| guint gdk_key; |
| guint16 unicode; |
| } kDeadKeyMapping[] = { |
| {GDK_KEY_dead_grave, 0x0060}, {GDK_KEY_dead_acute, 0x0027}, |
| {GDK_KEY_dead_circumflex, 0x005e}, {GDK_KEY_dead_tilde, 0x007e}, |
| {GDK_KEY_dead_diaeresis, 0x00a8}, |
| }; |
| |
| base::flat_map<std::string, std::string> GtkUi::GetKeyboardLayoutMap() { |
| GdkDisplay* display = gdk_display_get_default(); |
| GdkKeymap* keymap = nullptr; |
| if (!GtkCheckVersion(4)) { |
| keymap = gdk_keymap_get_for_display(display); |
| if (!keymap) |
| return {}; |
| } |
| |
| auto layouts = std::make_unique<ui::DomKeyboardLayoutManager>(); |
| auto map = base::flat_map<std::string, std::string>(); |
| |
| for (unsigned int i_domcode = 0; |
| i_domcode < ui::kWritingSystemKeyDomCodeEntries; ++i_domcode) { |
| ui::DomCode domcode = ui::writing_system_key_domcodes[i_domcode]; |
| guint16 keycode = ui::KeycodeConverter::DomCodeToNativeKeycode(domcode); |
| GdkKeymapKey* keys = nullptr; |
| guint* keyvals = nullptr; |
| gint n_entries = 0; |
| |
| // The order of the layouts is based on the system default ordering in |
| // Keyboard Settings. The currently active layout does not affect this |
| // order. |
| const bool success = |
| GtkCheckVersion(4) ? gdk_display_map_keycode(display, keycode, &keys, |
| &keyvals, &n_entries) |
| : gdk_keymap_get_entries_for_keycode( |
| keymap, keycode, &keys, &keyvals, &n_entries); |
| if (success) { |
| for (gint i = 0; i < n_entries; ++i) { |
| // There are 4 entries per layout group, one each for shift level 0..3. |
| // We only care about the unshifted values (level = 0). |
| if (keys[i].level == 0) { |
| uint16_t unicode = gdk_keyval_to_unicode(keyvals[i]); |
| if (unicode == 0) { |
| for (const auto& i_dead : kDeadKeyMapping) { |
| if (keyvals[i] == i_dead.gdk_key) |
| unicode = i_dead.unicode; |
| } |
| } |
| if (unicode != 0) |
| layouts->GetLayout(keys[i].group)->AddKeyMapping(domcode, unicode); |
| } |
| } |
| } |
| g_free(keys); |
| g_free(keyvals); |
| } |
| return layouts->GetFirstAsciiCapableLayout()->GetMap(); |
| } |
| |
| std::string GtkUi::GetCursorThemeName() { |
| gchar* theme = nullptr; |
| g_object_get(gtk_settings_get_default(), "gtk-cursor-theme-name", &theme, |
| nullptr); |
| std::string theme_string; |
| if (theme) { |
| theme_string = theme; |
| g_free(theme); |
| } |
| return theme_string; |
| } |
| |
| int GtkUi::GetCursorThemeSize() { |
| gint size = 0; |
| g_object_get(gtk_settings_get_default(), "gtk-cursor-theme-size", &size, |
| nullptr); |
| return size; |
| } |
| |
| ui::NativeTheme* GtkUi::GetNativeThemeImpl() const { |
| return native_theme_; |
| } |
| |
| bool GtkUi::GetTextEditCommandsForEvent( |
| const ui::Event& event, |
| std::vector<ui::TextEditCommandAuraLinux>* commands) { |
| // GTK4 dropped custom key bindings. |
| if (GtkCheckVersion(4)) |
| return false; |
| |
| // TODO(crbug.com/963419): Use delegate's |GetGdkKeymap| here to |
| // determine if GtkUi's key binding handling implementation is used or not. |
| // Ozone/Wayland was unintentionally using GtkUi for keybinding handling, so |
| // early out here, for now, until a proper solution for ozone is implemented. |
| if (!platform_->GetGdkKeymap()) |
| return false; |
| |
| // Ensure that we have a keyboard handler. |
| if (!key_bindings_handler_) |
| key_bindings_handler_ = std::make_unique<GtkKeyBindingsHandler>(); |
| |
| return key_bindings_handler_->MatchEvent(event, commands); |
| } |
| |
| #if BUILDFLAG(ENABLE_PRINTING) |
| printing::PrintDialogLinuxInterface* GtkUi::CreatePrintDialog( |
| printing::PrintingContextLinux* context) { |
| return PrintDialogGtk::CreatePrintDialog(context); |
| } |
| |
| gfx::Size GtkUi::GetPdfPaperSize(printing::PrintingContextLinux* context) { |
| return GetPdfPaperSizeDeviceUnitsGtk(context); |
| } |
| #endif |
| |
| void GtkUi::OnThemeChanged(GtkSettings* settings, GtkParamSpec* param) { |
| colors_.clear(); |
| custom_frame_colors_.clear(); |
| native_frame_colors_.clear(); |
| native_theme_->OnThemeChanged(settings, param); |
| LoadGtkValues(); |
| native_theme_->NotifyOnNativeThemeUpdated(); |
| } |
| |
| void GtkUi::OnCursorThemeNameChanged(GtkSettings* settings, |
| GtkParamSpec* param) { |
| std::string cursor_theme_name = GetCursorThemeName(); |
| if (cursor_theme_name.empty()) |
| return; |
| for (auto& observer : cursor_theme_observers()) |
| observer.OnCursorThemeNameChanged(cursor_theme_name); |
| } |
| |
| void GtkUi::OnCursorThemeSizeChanged(GtkSettings* settings, |
| GtkParamSpec* param) { |
| int cursor_theme_size = GetCursorThemeSize(); |
| if (!cursor_theme_size) |
| return; |
| for (auto& observer : cursor_theme_observers()) |
| observer.OnCursorThemeSizeChanged(cursor_theme_size); |
| } |
| |
| void GtkUi::OnDeviceScaleFactorMaybeChanged(void*, GParamSpec*) { |
| UpdateDeviceScaleFactor(); |
| } |
| |
| void GtkUi::LoadGtkValues() { |
| // TODO(thomasanderson): GtkThemeService had a comment here about having to |
| // muck with the raw Prefs object to remove prefs::kCurrentThemeImages or else |
| // we'd regress startup time. Figure out how to do that when we can't access |
| // the prefs system from here. |
| UpdateDeviceScaleFactor(); |
| UpdateColors(); |
| } |
| |
| void GtkUi::UpdateColors() { |
| // TODO(tluk): The below code sets various ThemeProvider colors for GTK. Some |
| // of these definitions leverage colors that were previously defined by |
| // NativeThemeGtk and are now defined as GTK ColorMixers. These ThemeProvider |
| // color definitions should be added as recipes to a browser ColorMixer once |
| // the Color Pipeline project begins rollout into c/b/ui. In the meantime |
| // use the ColorProvider instance from the ColorProviderManager corresponding |
| // to the theme bits associated with the NativeThemeGtk instance to ensure |
| // we do not regress existing behavior during the transition. |
| const auto color_scheme = native_theme_->GetDefaultSystemColorScheme(); |
| const auto* color_provider = |
| ui::ColorProviderManager::Get().GetColorProviderFor( |
| {(color_scheme == ui::NativeTheme::ColorScheme::kDark) |
| ? ui::ColorProviderManager::ColorMode::kDark |
| : ui::ColorProviderManager::ColorMode::kLight, |
| (color_scheme == ui::NativeTheme::ColorScheme::kPlatformHighContrast) |
| ? ui::ColorProviderManager::ContrastMode::kHigh |
| : ui::ColorProviderManager::ContrastMode::kNormal, |
| ui::ColorProviderManager::SystemTheme::kCustom, |
| // Some theme colors, e.g. COLOR_NTP_LINK, are derived from color |
| // provider colors. We assume that those sources' colors won't change |
| // with frame type. |
| ui::ColorProviderManager::FrameType::kChromium}); |
| |
| SkColor location_bar_border = GetBorderColor("GtkEntry#entry"); |
| if (SkColorGetA(location_bar_border)) |
| colors_[ThemeProperties::COLOR_LOCATION_BAR_BORDER] = location_bar_border; |
| |
| inactive_selection_bg_color_ = GetSelectionBgColor( |
| GtkCheckVersion(3, 20) ? "GtkTextView#textview.view:backdrop " |
| "#text:backdrop #selection:backdrop" |
| : "GtkTextView.view:selected:backdrop"); |
| inactive_selection_fg_color_ = |
| GetFgColor(GtkCheckVersion(3, 20) ? "GtkTextView#textview.view:backdrop " |
| "#text:backdrop #selection:backdrop" |
| : "GtkTextView.view:selected:backdrop"); |
| |
| SkColor tab_border = GetBorderColor("GtkButton#button"); |
| // Separates the toolbar from the bookmark bar or butter bars. |
| colors_[ThemeProperties::COLOR_TOOLBAR_CONTENT_AREA_SEPARATOR] = tab_border; |
| // Separates entries in the downloads bar. |
| colors_[ThemeProperties::COLOR_TOOLBAR_VERTICAL_SEPARATOR] = tab_border; |
| |
| colors_[ThemeProperties::COLOR_NTP_BACKGROUND] = |
| color_provider->GetColor(ui::kColorTextfieldBackground); |
| colors_[ThemeProperties::COLOR_NTP_TEXT] = |
| color_provider->GetColor(ui::kColorTextfieldForeground); |
| colors_[ThemeProperties::COLOR_NTP_HEADER] = |
| GetBorderColor("GtkButton#button"); |
| |
| SkColor tab_text_color = GetFgColor("GtkLabel#label"); |
| colors_[ThemeProperties::COLOR_TOOLBAR_BUTTON_ICON] = tab_text_color; |
| colors_[ThemeProperties::COLOR_TOOLBAR_BUTTON_ICON_HOVERED] = tab_text_color; |
| colors_[ThemeProperties::COLOR_TOOLBAR_BUTTON_ICON_PRESSED] = tab_text_color; |
| colors_[ThemeProperties::COLOR_TOOLBAR_TEXT] = tab_text_color; |
| |
| colors_[ThemeProperties::COLOR_NTP_LINK] = |
| color_provider->GetColor(ui::kColorTextfieldSelectionBackground); |
| |
| // Generate the colors that we pass to Blink. |
| focus_ring_color_ = |
| color_provider->GetColor(ui::kColorFocusableBorderFocused); |
| |
| // Some GTK themes only define the text selection colors on the GtkEntry |
| // class, so we need to use that for getting selection colors. |
| active_selection_bg_color_ = |
| color_provider->GetColor(ui::kColorTextfieldSelectionBackground); |
| active_selection_fg_color_ = |
| color_provider->GetColor(ui::kColorTextfieldSelectionForeground); |
| |
| // Generate colors that depend on whether or not a custom window frame is |
| // used. These colors belong in |color_map| below, not |colors_|. |
| for (bool custom_frame : {false, true}) { |
| ColorMap& color_map = |
| custom_frame ? custom_frame_colors_ : native_frame_colors_; |
| const std::string header_selector = |
| custom_frame ? "#headerbar.header-bar.titlebar" : "GtkMenuBar#menubar"; |
| const std::string header_selector_inactive = header_selector + ":backdrop"; |
| const SkColor frame_color = |
| SkColorSetA(GetBgColor(header_selector), SK_AlphaOPAQUE); |
| const SkColor frame_color_inactive = |
| SkColorSetA(GetBgColor(header_selector_inactive), SK_AlphaOPAQUE); |
| |
| color_map[ThemeProperties::COLOR_FRAME_ACTIVE] = frame_color; |
| color_map[ThemeProperties::COLOR_FRAME_INACTIVE] = frame_color_inactive; |
| color_map[ThemeProperties::COLOR_FRAME_ACTIVE_INCOGNITO] = frame_color; |
| color_map[ThemeProperties::COLOR_FRAME_INACTIVE_INCOGNITO] = |
| frame_color_inactive; |
| |
| // Compose the window color on the frame color to ensure the resulting tab |
| // color is opaque. |
| SkColor tab_color = |
| color_utils::GetResultingPaintColor(GetBgColor(""), frame_color); |
| |
| color_map[ThemeProperties::COLOR_TOOLBAR] = tab_color; |
| color_map[ThemeProperties::COLOR_TAB_BACKGROUND_ACTIVE_FRAME_ACTIVE] = |
| tab_color; |
| color_map[ThemeProperties::COLOR_TAB_BACKGROUND_ACTIVE_FRAME_INACTIVE] = |
| tab_color; |
| |
| const SkColor background_tab_text_color = |
| GetFgColor(header_selector + " GtkLabel#label.title"); |
| const SkColor background_tab_text_color_inactive = |
| GetFgColor(header_selector_inactive + " GtkLabel#label.title"); |
| |
| color_map[ThemeProperties::COLOR_TAB_FOREGROUND_INACTIVE_FRAME_ACTIVE] = |
| background_tab_text_color; |
| color_map[ThemeProperties:: |
| COLOR_TAB_FOREGROUND_INACTIVE_FRAME_ACTIVE_INCOGNITO] = |
| background_tab_text_color; |
| color_map[ThemeProperties::COLOR_TAB_FOREGROUND_INACTIVE_FRAME_INACTIVE] = |
| background_tab_text_color_inactive; |
| color_map[ThemeProperties:: |
| COLOR_TAB_FOREGROUND_INACTIVE_FRAME_INACTIVE_INCOGNITO] = |
| background_tab_text_color_inactive; |
| |
| // These colors represent the border drawn around tabs and between |
| // the tabstrip and toolbar. |
| SkColor toolbar_top_separator = GetBorderColor( |
| header_selector + " GtkSeparator#separator.vertical.titlebutton"); |
| SkColor toolbar_top_separator_inactive = |
| GetBorderColor(header_selector + |
| ":backdrop GtkSeparator#separator.vertical.titlebutton"); |
| |
| auto toolbar_top_separator_has_good_contrast = [&]() { |
| // This constant is copied from chrome/browser/themes/theme_service.cc. |
| const float kMinContrastRatio = 2.f; |
| |
| SkColor active = color_utils::GetResultingPaintColor( |
| toolbar_top_separator, frame_color); |
| SkColor inactive = color_utils::GetResultingPaintColor( |
| toolbar_top_separator_inactive, frame_color_inactive); |
| return color_utils::GetContrastRatio(frame_color, active) >= |
| kMinContrastRatio && |
| color_utils::GetContrastRatio(frame_color_inactive, inactive) >= |
| kMinContrastRatio; |
| }; |
| |
| if (!toolbar_top_separator_has_good_contrast()) { |
| toolbar_top_separator = |
| GetBorderColor(header_selector + " GtkButton#button"); |
| toolbar_top_separator_inactive = |
| GetBorderColor(header_selector + ":backdrop GtkButton#button"); |
| } |
| |
| // If we can't get a contrasting stroke from the theme, have ThemeService |
| // provide a stroke color for us. |
| if (toolbar_top_separator_has_good_contrast()) { |
| color_map[ThemeProperties::COLOR_TAB_STROKE_FRAME_ACTIVE] = |
| toolbar_top_separator; |
| color_map[ThemeProperties::COLOR_TAB_STROKE_FRAME_INACTIVE] = |
| toolbar_top_separator_inactive; |
| color_map[ThemeProperties::COLOR_TOOLBAR_TOP_SEPARATOR_FRAME_ACTIVE] = |
| toolbar_top_separator; |
| color_map[ThemeProperties::COLOR_TOOLBAR_TOP_SEPARATOR_FRAME_INACTIVE] = |
| toolbar_top_separator_inactive; |
| } |
| } |
| } |
| |
| void GtkUi::UpdateDefaultFont() { |
| gfx::SetFontRenderParamsDeviceScaleFactor(device_scale_factor_); |
| |
| auto fake_label = TakeGObject(gtk_label_new(nullptr)); |
| PangoContext* pc = gtk_widget_get_pango_context(fake_label); |
| const PangoFontDescription* desc = pango_context_get_font_description(pc); |
| |
| // Use gfx::FontRenderParams to select a family and determine the rendering |
| // settings. |
| gfx::FontRenderParamsQuery query; |
| query.families = |
| base::SplitString(pango_font_description_get_family(desc), ",", |
| base::TRIM_WHITESPACE, base::SPLIT_WANT_ALL); |
| |
| if (pango_font_description_get_size_is_absolute(desc)) { |
| // If the size is absolute, it's specified in Pango units. There are |
| // PANGO_SCALE Pango units in a device unit (pixel). |
| const int size_pixels = pango_font_description_get_size(desc) / PANGO_SCALE; |
| default_font_size_pixels_ = size_pixels; |
| query.pixel_size = size_pixels; |
| } else { |
| // Non-absolute sizes are in points (again scaled by PANGO_SIZE). |
| // Round the value when converting to pixels to match GTK's logic. |
| const double size_points = pango_font_description_get_size(desc) / |
| static_cast<double>(PANGO_SCALE); |
| default_font_size_pixels_ = |
| static_cast<int>(kDefaultDPI / 72.0 * size_points + 0.5); |
| query.point_size = static_cast<int>(size_points); |
| } |
| |
| query.style = gfx::Font::NORMAL; |
| query.weight = |
| static_cast<gfx::Font::Weight>(pango_font_description_get_weight(desc)); |
| // TODO(davemoore): What about PANGO_STYLE_OBLIQUE? |
| if (pango_font_description_get_style(desc) == PANGO_STYLE_ITALIC) |
| query.style |= gfx::Font::ITALIC; |
| |
| default_font_render_params_ = |
| gfx::GetFontRenderParams(query, &default_font_family_); |
| default_font_style_ = query.style; |
| } |
| |
| float GtkUi::GetRawDeviceScaleFactor() { |
| if (display::Display::HasForceDeviceScaleFactor()) |
| return display::Display::GetForcedDeviceScaleFactor(); |
| |
| float scale = gtk_widget_get_scale_factor(GetDummyWindow()); |
| DCHECK_GT(scale, 0.0); |
| |
| double resolution = 0; |
| if (GtkCheckVersion(4)) { |
| auto* settings = gtk_settings_get_default(); |
| int dpi = 0; |
| g_object_get(settings, "gtk-xft-dpi", &dpi, nullptr); |
| resolution = dpi / 1024.0; |
| } else { |
| GdkScreen* screen = gdk_screen_get_default(); |
| resolution = gdk_screen_get_resolution(screen); |
| } |
| if (resolution > 0) |
| scale *= resolution / kDefaultDPI; |
| |
| // Round to the nearest 64th so that UI can losslessly multiply and divide |
| // the scale factor. |
| scale = roundf(scale * 64) / 64; |
| |
| return scale; |
| } |
| |
| void GtkUi::UpdateDeviceScaleFactor() { |
| float old_device_scale_factor = device_scale_factor_; |
| device_scale_factor_ = GetRawDeviceScaleFactor(); |
| if (device_scale_factor_ != old_device_scale_factor) { |
| for (ui::DeviceScaleFactorObserver& observer : |
| device_scale_factor_observer_list()) { |
| observer.OnDeviceScaleFactorChanged(); |
| } |
| } |
| UpdateDefaultFont(); |
| } |
| |
| float GtkUi::GetDeviceScaleFactor() const { |
| return device_scale_factor_; |
| } |
| |
| } // namespace gtk |