1 files changed, 82 insertions, 0 deletions
diff --git a/src/modules/interface.js b/src/modules/interface.js
index 2ccfeef3..d1607919 100644
--- a/src/modules/interface.js
+++ b/src/modules/interface.js
@@ -1,3 +1,7 @@
+import { getPreset, applyTheme, tryLoadCache } from '../services/style_setter/style_setter.js'
+import { CURRENT_VERSION, generatePreset } from 'src/services/theme_data/theme_data.service.js'
+import { convertTheme2To3 } from 'src/services/theme_data/theme2_to_theme3.js'
+
 const defaultState = {
   localFonts: null,
   themeApplied: false,
@@ -207,6 +211,84 @@ const interfaceMod = {
     },
     setLastTimeline ({ commit }, value) {
       commit('setLastTimeline', value)
+    },
+    setTheme ({ commit, rootState }, { themeName, themeData, recompile } = {}) {
+      // const {
+      //   themeApplied
+      // } = rootState.interface
+      const {
+        theme: instanceThemeName
+      } = rootState.instance
+
+      const {
+        customTheme: userThemeSnapshot,
+        customThemeSource: userThemeSource,
+        forceThemeRecompilation,
+        themeDebug
+      } = rootState.config
+
+      const forceRecompile = forceThemeRecompilation || recompile
+
+      // If we're not not forced to recompile try using
+      // cache (tryLoadCache return true if load successful)
+      if (!forceRecompile && !themeDebug && tryLoadCache()) {
+        commit('setThemeApplied')
+      }
+
+      const normalizeThemeData = (themeData) => {
+        if (themeData.themeFileVerison === 1) {
+          return generatePreset(themeData).theme
+        }
+        // New theme presets don't have 'theme' property, they use 'source'
+        const themeSource = themeData.source
+
+        let out // shout, shout let it all out
+        if (!themeData.theme || (themeSource && themeSource.themeEngineVersion === CURRENT_VERSION)) {
+          out = themeSource || themeData
+        } else {
+          out = themeData.theme
+        }
+
+        // generatePreset here basically creates/updates "snapshot",
+        // while also fixing the 2.2 -> 2.3 colors/shadows/etc
+        return generatePreset(out).theme
+      }
+
+      let promise = null
+
+      if (themeName) {
+        // commit('setInstanceOption', { name: 'theme', value: themeName })
+        promise = getPreset(themeName)
+          .then(themeData => {
+            // commit('setInstanceOption', { name: 'themeData', value: themeData })
+            return normalizeThemeData(themeData)
+          })
+      } else if (themeData) {
+        promise = Promise.resolve(normalizeThemeData(themeData))
+      } else {
+        if (userThemeSource || userThemeSnapshot) {
+          if (userThemeSource && userThemeSource.themeEngineVersion === CURRENT_VERSION) {
+            promise = Promise.resolve(normalizeThemeData(userThemeSource))
+          } else {
+            promise = Promise.resolve(normalizeThemeData(userThemeSnapshot))
+          }
+        } else if (instanceThemeName) {
+          promise = getPreset(themeName).then(themeData => normalizeThemeData(themeData))
+        }
+      }
+
+      promise
+        .then(realThemeData => {
+          const ruleset = convertTheme2To3(realThemeData)
+
+          applyTheme(
+            ruleset,
+            () => commit('setThemeApplied'),
+            themeDebug
+          )
+        })
+
+      return promise
     }
   }
 }