Merge pull request #1697 from ONLYOFFICE/feature/add-theme-system

Feature/add theme system

apps/common/main/lib/controller/Themes.js

@@ -11,7 +11,16 @@ define([
     
     Common.UI.Themes = new (function(locale) {
         !locale && (locale = {});
+
+        const THEME_TYPE_LIGHT = 'light';
+        const THEME_TYPE_DARK = 'dark';
+        const THEME_TYPE_SYSTEM = 'system';
         var themes_map = {
+            'theme-system': {
+                text: locale.txtThemeSystem || 'Auto',
+                type: THEME_TYPE_SYSTEM,
+                source: 'static',
+            },
             'theme-light': {
                 text: locale.txtThemeLight || 'Light',
                 type: 'light',
@@ -261,6 +270,21 @@ define([
             }
         };
 
+        const is_theme_type_system = id => themes_map[id].type == THEME_TYPE_SYSTEM;
+        const get_system_theme_type = () => window.matchMedia('(prefers-color-scheme: dark)').matches ? THEME_TYPE_DARK : THEME_TYPE_LIGHT;
+        const get_system_default_theme = () => {
+            const id = get_system_theme_type() == THEME_TYPE_DARK ?
+                                id_default_dark_theme : id_default_light_theme;
+
+            return {id: id, info: themes_map[id]};
+        };
+
+        const on_system_theme_dark = function (mql)  {
+            if ( Common.localStorage.getBool('ui-theme-use-system', false) ) {
+                this.setTheme('theme-system');
+            }
+        };
+
         return {
             init: function (api) {
                 var me = this;
@@ -313,6 +337,7 @@ define([
                 obj.name = theme_name;
                 api.asc_setSkin(obj);
 
+                window.matchMedia('(prefers-color-scheme: dark)').addEventListener('change', on_system_theme_dark.bind(this));
                 Common.NotificationCenter.on('document:ready', on_document_ready.bind(this));
             },
 
@@ -333,6 +358,9 @@ define([
             },
 
             currentThemeId: function () {
+                if ( Common.localStorage.getBool('ui-theme-use-system', false) )
+                    return 'theme-system';
+
                 var t = Common.localStorage.getItem('ui-theme') || Common.localStorage.getItem('ui-theme-id');
                 var id = get_ui_theme_name(t);
                 return !!themes_map[id] ? id : id_default_light_theme;
@@ -346,8 +374,9 @@ define([
                 return themes_map[this.defaultThemeId(type)]
             },
 
-            isDarkTheme: function () {
-                return themes_map[this.currentThemeId()].type == 'dark';
+            isDarkTheme: function (id) {
+                !id && (id = this.currentThemeId());
+                return (is_theme_type_system(id) ? get_system_default_theme().info.type : themes_map[id].type) == THEME_TYPE_DARK;
             },
 
             isContentThemeDark: function () {
@@ -384,6 +413,14 @@ define([
                 if ( !obj ) return;
 
                 var id = get_ui_theme_name(obj);
+
+                if ( is_theme_type_system(id) ) {
+                    Common.localStorage.setBool('ui-theme-use-system', true);
+                    id = get_system_default_theme().id;
+                } else {
+                    Common.localStorage.setBool('ui-theme-use-system', false);
+                }
+
                 if ( (this.currentThemeId() != id || force) && !!themes_map[id] ) {
                     document.body.className = document.body.className.replace(/theme-[\w-]+\s?/gi, '').trim();
                     document.body.classList.add(id, 'theme-type-' + themes_map[id].type);

apps/common/main/lib/util/themeinit.js

@@ -1,5 +1,9 @@
 
 +function init_themes() {
+    if ( localStorage.getItem("ui-theme-use-system") == '1' ) {
+        localStorage.removeItem("ui-theme-id");
+    }
+
     var objtheme = localStorage.getItem("ui-theme");
     if ( typeof(objtheme) == 'string' &&
             objtheme.startsWith("{") && objtheme.endsWith("}") )

apps/documenteditor/main/app/view/FileMenuPanels.js

@@ -679,7 +679,7 @@ define([
                 dataHintDirection: 'bottom',
                 dataHintOffset: 'big'
             }).on('selected', function(combo, record) {
-                me.chDarkMode.setDisabled(record.themeType!=='dark');
+                me.chDarkMode.setDisabled(!Common.UI.Themes.isDarkTheme(record.value));
             });
 
             this.chDarkMode = new Common.UI.CheckBox({

apps/documenteditor/main/locale/en.json

@@ -188,6 +188,7 @@
   "Common.UI.Themes.txtThemeClassicLight": "Classic Light",
   "Common.UI.Themes.txtThemeDark": "Dark",
   "Common.UI.Themes.txtThemeLight": "Light",
+  "Common.UI.Themes.txtThemeSystem": "Auto",
   "Common.UI.Window.cancelButtonText": "Cancel",
   "Common.UI.Window.closeButtonText": "Close",
   "Common.UI.Window.noButtonText": "No",

apps/presentationeditor/main/locale/en.json

@@ -275,6 +275,7 @@
   "Common.UI.Themes.txtThemeClassicLight": "Classic Light",
   "Common.UI.Themes.txtThemeDark": "Dark",
   "Common.UI.Themes.txtThemeLight": "Light",
+  "Common.UI.Themes.txtThemeSystem": "Auto",
   "Common.UI.Window.cancelButtonText": "Cancel",
   "Common.UI.Window.closeButtonText": "Close",
   "Common.UI.Window.noButtonText": "No",

apps/spreadsheeteditor/main/locale/en.json

@@ -133,6 +133,7 @@
   "Common.UI.Themes.txtThemeClassicLight": "Classic Light",
   "Common.UI.Themes.txtThemeDark": "Dark",
   "Common.UI.Themes.txtThemeLight": "Light",
+  "Common.UI.Themes.txtThemeSystem": "Auto",
   "Common.UI.Window.cancelButtonText": "Cancel",
   "Common.UI.Window.closeButtonText": "Close",
   "Common.UI.Window.noButtonText": "No",