GODT-1329: Dark mode, with macOS autodetect.

internal/frontend/qml/Bridge.qml

@@ -20,6 +20,7 @@ import QtQuick 2.13
 import QtQuick.Window 2.13
 import Qt.labs.platform 1.1
 
+import Proton 4.0
 import Notifications 1.0
 
 QtObject {
@@ -58,6 +59,7 @@ QtObject {
             onCacheUnavailable: {
                 mainWindow.showAndRise()
             }
+            onColorSchemeNameChanged: root.setColorScheme()
         }
     }
 
@@ -206,15 +208,15 @@ QtObject {
 
             switch (reason) {
                 case SystemTrayIcon.Unknown:
-                    break;
+                break;
                 case SystemTrayIcon.Context:
                 case SystemTrayIcon.Trigger:
                 case SystemTrayIcon.DoubleClick:
                 case SystemTrayIcon.MiddleClick:
-                    calcStatusWindowPosition()
-                    toggleWindow(statusWindow)
+                calcStatusWindowPosition()
+                toggleWindow(statusWindow)
                 break;
-                    default:
+                default:
                 break;
             }
         }
@@ -225,6 +227,9 @@ QtObject {
             console.log("backend not loaded")
         }
 
+        root.setColorScheme()
+
+
         if (!root.backend.users) {
             console.log("users not loaded")
         }
@@ -253,4 +258,9 @@ QtObject {
 
         root.backend.guiReady()
     }
+
+    function setColorScheme() {
+        if (root.backend.colorSchemeName == "light") ProtonStyle.currentStyle = ProtonStyle.lightStyle
+        if (root.backend.colorSchemeName == "dark") ProtonStyle.currentStyle = ProtonStyle.darkStyle
+    }
 }

internal/frontend/qml/Bridge_test.qml

@@ -321,7 +321,7 @@ Window {
 
                         onCheckedChanged: {
                             if (checked && ProtonStyle.currentStyle !== ProtonStyle.lightStyle) {
-                                ProtonStyle.currentStyle = ProtonStyle.lightStyle
+                                root.colorSchemeName = "light"
                             }
                         }
                     }
@@ -336,7 +336,7 @@ Window {
 
                         onCheckedChanged: {
                             if (checked && ProtonStyle.currentStyle !== ProtonStyle.darkStyle) {
-                                ProtonStyle.currentStyle = ProtonStyle.darkStyle
+                                root.colorSchemeName = "dark"
                             }
                         }
                     }
@@ -777,6 +777,12 @@ Window {
     property url releaseNotesLink: Qt.resolvedUrl("https://protonmail.com/download/bridge/early_releases.html")
     property url landingPageLink: Qt.resolvedUrl("https://protonmail.com/bridge")
 
+    property string colorSchemeName: "light"
+    function changeColorScheme(newScheme){
+        root.colorSchemeName = newScheme
+    }
+
+
     property string currentEmailClient: "" // "Apple Mail 14.0"
     function updateCurrentMailClient(){
         currentEmailClient = "Apple Mail 14.0"

internal/frontend/qml/GeneralSettings.qml

@@ -129,6 +129,19 @@ SettingsView {
         Layout.fillWidth: true
     }
 
+    SettingsItem {
+        id: darkMode
+        visible: root._isAdvancedShown
+        colorScheme: root.colorScheme
+        text: qsTr("Dark mode")
+        description: qsTr("Choose dark color theme.")
+        type: SettingsItem.Toggle
+        checked: root.backend.colorSchemeName == "dark"
+        onClicked: root.backend.changeColorScheme( darkMode.checked ? "light" : "dark")
+
+        Layout.fillWidth: true
+    }
+
     SettingsItem {
         id: ports
         visible: root._isAdvancedShown

internal/frontend/qml/Proton/Style.qml

@@ -36,7 +36,7 @@ QtObject {
     property ColorScheme lightStyle: ColorScheme {
         id: _lightStyle
 
-        prominent: prominentStyle
+        prominent: lightProminentStyle
 
         // Primary
         primay_norm: "#657EE4"
@@ -107,8 +107,8 @@ QtObject {
         welcome_img: "icons/img-welcome.png"
     }
 
-    property ColorScheme prominentStyle: ColorScheme {
-        id: _prominentStyle
+    property ColorScheme lightProminentStyle: ColorScheme {
+        id: _lightProminentStyle
 
         prominent: this
 
@@ -184,7 +184,7 @@ QtObject {
     property ColorScheme darkStyle: ColorScheme {
         id: _darkStyle
 
-        prominent: prominentStyle
+        prominent: darkProminentStyle
 
         // Primary
         primay_norm: "#657EE4"
@@ -245,8 +245,82 @@ QtObject {
         signal_info_active: "#3D99EB"
 
         // Shadows
-        shadow_norm: "#262A33"
-        shadow_lifted: "#262A33"
+        shadow_norm: "#262A33" // #000000 32% x+0 y+1 blur:4
+        shadow_lifted: "#262A33" // #000000 40% x+0 y+8 blur:24
+
+        // Backdrop
+        backdrop_norm: "#52000000"
+
+        // Images
+        welcome_img: "icons/img-welcome-dark.png"
+    }
+
+    property ColorScheme darkProminentStyle: ColorScheme {
+        id: _darkProminentStyle
+
+        prominent: this
+
+        // Primary
+        primay_norm: "#657EE4"
+
+        // Interaction-norm
+        interaction_norm: "#657EE4"
+        interaction_norm_hover: "#7D92E8"
+        interaction_norm_active: "#98A9EE"
+
+        // Text
+        text_norm: "#FFFFFF"
+        text_weak: "#A4A9B5"
+        text_hint: "#696F7D"
+        text_disabled: "#575D6B"
+        text_invert: "#262A33"
+
+        // Field
+        field_norm: "#575D6B"
+        field_hover: "#696F7D"
+        field_disabled: "#464B58"
+
+        // Border
+        border_norm: "#464B58"
+        border_weak: "#363A46"
+
+        // Background
+        background_norm: "#1A1D24"
+        background_weak: "#2E323C"
+        background_strong: "#363A46"
+        background_avatar: "#575D6B"
+
+        // Interaction-weak
+        interaction_weak: "#464B58"
+        interaction_weak_hover: "#575D6B"
+        interaction_weak_active: "#696F7D"
+
+        // Interaction-default
+        interaction_default: "#00000000"
+        interaction_default_hover: "#33575D6B"
+        interaction_default_active: "#4D575D6B"
+
+        // Scrollbar
+        scrollbar_norm: "#464B58"
+        scrollbar_hover: "#575D6B"
+
+        // Signal
+        signal_danger: "#ED4C51"
+        signal_danger_hover: "#F7595E"
+        signal_danger_active: "#FF666B"
+        signal_warning: "#F5930A"
+        signal_warning_hover: "#F5A716"
+        signal_warning_active: "#F5B922"
+        signal_success: "#349172"
+        signal_success_hover: "#339C79"
+        signal_success_active: "#31A67F"
+        signal_info: "#2C89DB"
+        signal_info_hover: "#3491E3"
+        signal_info_active: "#3D99EB"
+
+        // Shadows
+        shadow_norm: "#262A33" // #000000 32% x+0 y+1 blur:4
+        shadow_lifted: "#262A33" // #000000 40% x+0 y+8 blur:24
 
         // Backdrop
         backdrop_norm: "#52000000"
@@ -255,8 +329,6 @@ QtObject {
         welcome_img: "icons/img-welcome-dark.png"
     }
 
-    // TODO: if default style should be loaded from somewhere
-    // (i.e. from preferencies file) - it should be loaded here
     property ColorScheme currentStyle: lightStyle
 
     property string font_family: {

internal/frontend/qt/frontend_settings.go

@@ -26,6 +26,7 @@ import (
 
 	"github.com/ProtonMail/proton-bridge/internal/config/settings"
 	"github.com/ProtonMail/proton-bridge/internal/frontend/clientconfig"
+	"github.com/ProtonMail/proton-bridge/internal/frontend/theme"
 	"github.com/ProtonMail/proton-bridge/pkg/keychain"
 	"github.com/ProtonMail/proton-bridge/pkg/ports"
 	"github.com/therecipe/qt/core"
@@ -184,3 +185,21 @@ func (f *FrontendQt) quit() {
 func (f *FrontendQt) guiReady() {
 	f.initializationDone.Do(f.initializing.Done)
 }
+
+func (f *FrontendQt) setColorScheme() {
+	current := f.settings.Get(settings.ColorScheme)
+	if !theme.IsAvailable(theme.Theme(current)) {
+		current = string(theme.DefaultTheme())
+		f.settings.Set(settings.ColorScheme, current)
+	}
+	f.qml.SetColorSchemeName(current)
+}
+
+func (f *FrontendQt) changeColorScheme(newScheme string) {
+	if !theme.IsAvailable(theme.Theme(newScheme)) {
+		f.log.WithField("scheme", newScheme).Warn("Color scheme not available")
+		return
+	}
+	f.settings.Set(settings.ColorScheme, newScheme)
+	f.setColorScheme()
+}

internal/frontend/qt/qml_backend.go

@@ -128,6 +128,8 @@ type QMLBackend struct {
 	_ core.QUrl `property:"releaseNotesLink"`
 	_ core.QUrl `property:"landingPageLink"`
 
+	_ string                                                           `property:"colorSchemeName"`
+	_ func(string)                                                     `slot:"changeColorScheme"`
 	_ string                                                           `property:"currentEmailClient"`
 	_ func()                                                           `slot:"updateCurrentMailClient"`
 	_ func(description, address, emailClient string, includeLogs bool) `slot:"reportBug"`
@@ -262,6 +264,14 @@ func (q *QMLBackend) setup(f *FrontendQt) {
 	// release notes link is set by update
 	f.setLicensePath()
 
+	f.setColorScheme()
+	q.ConnectChangeColorScheme(func(newScheme string) {
+		go func() {
+			defer f.panicHandler.HandlePanic()
+			f.changeColorScheme(newScheme)
+		}()
+	})
+
 	f.setCurrentEmailClient()
 	q.ConnectUpdateCurrentMailClient(func() {
 		go func() {

internal/frontend/theme/detect_darwin.go

@@ -0,0 +1,34 @@
+// Copyright (c) 2021 Proton Technologies AG
+//
+// This file is part of ProtonMail Bridge.
+//
+// ProtonMail Bridge is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// ProtonMail Bridge is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with ProtonMail Bridge.  If not, see <https://www.gnu.org/licenses/>.
+
+//go:build darwin
+// +build darwin
+
+package theme
+
+import (
+	"os/exec"
+	"strings"
+)
+
+func detectSystemTheme() Theme {
+	out, err := exec.Command("defaults", "read", "-g", "AppleInterfaceStyle").Output() //nolint[gosec]
+	if err == nil && strings.TrimSpace(string(out)) == "Dark" {
+		return Dark
+	}
+	return Light
+}

internal/frontend/theme/detect_default.go

@@ -0,0 +1,25 @@
+// Copyright (c) 2021 Proton Technologies AG
+//
+// This file is part of ProtonMail Bridge.
+//
+// ProtonMail Bridge is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// ProtonMail Bridge is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with ProtonMail Bridge.  If not, see <https://www.gnu.org/licenses/>.
+
+//go:build !windows && !darwin
+// +build !windows,!darwin
+
+package theme
+
+func detectSystemTheme() Theme {
+	return Light
+}

internal/frontend/theme/detect_windows.go

@@ -0,0 +1,53 @@
+// Copyright (c) 2021 Proton Technologies AG
+//
+// This file is part of ProtonMail Bridge.
+//
+// ProtonMail Bridge is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// ProtonMail Bridge is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with ProtonMail Bridge.  If not, see <https://www.gnu.org/licenses/>.
+
+//go:build windows
+// +build windows
+
+package theme
+
+import (
+	"github.com/sirupsen/logrus"
+	"golang.org/x/sys/windows/registry"
+)
+
+func detectSystemTheme() Theme {
+	log := logrus.WithField("pkg", "theme")
+	k, err := registry.OpenKey(
+		registry.CURRENT_USER,
+		`SOFTWARE\Microsoft\Windows\CurrentVersion\Themes\Personalize`,
+		registry.QUERY_VALUE,
+	)
+
+	if err != nil {
+		log.WithError(err).Error("Not able to open register")
+		return Light
+	}
+	defer k.Close()
+
+	i, _, err := k.GetIntegerValue("AppsUseLightTheme")
+	if err != nil {
+		log.WithError(err).Error("Cannot get value")
+		return Light
+	}
+
+	if i == 0 {
+		return Dark
+	}
+
+	return Light
+}

internal/frontend/theme/theme.go

@@ -0,0 +1,42 @@
+// Copyright (c) 2021 Proton Technologies AG
+//
+// This file is part of ProtonMail Bridge.
+//
+// ProtonMail Bridge is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// ProtonMail Bridge is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with ProtonMail Bridge.  If not, see <https://www.gnu.org/licenses/>.
+
+package theme
+
+import (
+	"runtime"
+)
+
+type Theme string
+
+const (
+	Light = Theme("light")
+	Dark  = Theme("dark")
+)
+
+func IsAvailable(have Theme) bool {
+	return have == Light || have == Dark
+}
+
+func DefaultTheme() Theme {
+	switch runtime.GOOS {
+	case "darwin", "windows":
+		return detectSystemTheme()
+	default:
+		return Light
+	}
+}

internal/frontend/theme/theme_test.go

@@ -0,0 +1,45 @@
+// Copyright (c) 2021 Proton Technologies AG
+//
+// This file is part of ProtonMail Bridge.
+//
+// ProtonMail Bridge is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// ProtonMail Bridge is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with ProtonMail Bridge.  If not, see <https://www.gnu.org/licenses/>.
+
+// Package settings provides access to persistent user settings.
+package theme
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestIsAvailable(t *testing.T) {
+	r := require.New(t)
+
+	want := "dark"
+
+	r.True(IsAvailable("dark"))
+	r.True(IsAvailable(Dark))
+	r.True(IsAvailable(Theme(want)))
+
+	want = "light"
+	r.True(IsAvailable("light"))
+	r.True(IsAvailable(Light))
+	r.True(IsAvailable(Theme(want)))
+
+	want = "molokai"
+	r.False(IsAvailable(""))
+	r.False(IsAvailable("molokai"))
+	r.False(IsAvailable(Theme(want)))
+}