From 8d2f2866f6d32b4ada155d76e07910b92c218146 Mon Sep 17 00:00:00 2001
From: Henry Jameson <me@hjkos.com>
Date: Mon, 13 Jan 2020 01:56:29 +0200
Subject: [PATCH] computed colors support

---
 src/App.scss                                  |  4 ++
 .../style_switcher/style_switcher.js          |  6 +-
 .../style_switcher/style_switcher.vue         | 16 ++++-
 src/i18n/en.json                              |  4 +-
 src/services/style_setter/style_setter.js     |  6 +-
 src/services/theme_data/theme_data.service.js | 69 ++++++++++++++++---
 6 files changed, 92 insertions(+), 13 deletions(-)

diff --git a/src/App.scss b/src/App.scss
index 7da3688a..ef139e88 100644
--- a/src/App.scss
+++ b/src/App.scss
@@ -99,6 +99,10 @@ button {
   &:active {
     box-shadow: 0px 0px 4px 0px rgba(255, 255, 255, 0.3), 0px 1px 0px 0px rgba(0, 0, 0, 0.2) inset, 0px -1px 0px 0px rgba(255, 255, 255, 0.2) inset;
     box-shadow: var(--buttonPressedShadow);
+    color: $fallback--text;
+    color: var(--btnPressedText, $fallback--text);
+    background-color: $fallback--fg;
+    background-color: var(--btnPressed, $fallback--fg)
   }
 
   &:disabled {
diff --git a/src/components/style_switcher/style_switcher.js b/src/components/style_switcher/style_switcher.js
index 49b34405..b84d2489 100644
--- a/src/components/style_switcher/style_switcher.js
+++ b/src/components/style_switcher/style_switcher.js
@@ -42,7 +42,7 @@ const v1OnlyNames = [
 ].map(_ => _ + 'ColorLocal')
 
 const colorConvert = (color) => {
-  if (color === 'transparent') {
+  if (color.startsWith('--') || color === 'transparent') {
     return color
   } else {
     return hex2rgb(color)
@@ -409,7 +409,9 @@ export default {
         }
 
         keys.forEach(key => {
-          this[key + 'ColorLocal'] = rgb2hex(colors[key])
+          const color = colors[key]
+          const hex = rgb2hex(colors[key])
+          this[key + 'ColorLocal'] = hex === '#aN' ? color : hex
         })
       }
 
diff --git a/src/components/style_switcher/style_switcher.vue b/src/components/style_switcher/style_switcher.vue
index c1ec7c9a..f2fdfea2 100644
--- a/src/components/style_switcher/style_switcher.vue
+++ b/src/components/style_switcher/style_switcher.vue
@@ -347,6 +347,20 @@
               :label="$t('settings.text')"
             />
             <ContrastRatio :contrast="previewContrast.btnText" />
+            <h4>{{ $t('settings.style.advanced_colors.pressed') }}</h4>
+            <ColorInput
+              v-model="btnPressedColorLocal"
+              name="btnPressedColor"
+              :fallback="previewTheme.colors.btnPressed"
+              :label="$t('settings.background')"
+            />
+            <ColorInput
+              v-model="btnPressedTextColorLocal"
+              name="btnPressedTextColor"
+              :fallback="previewTheme.colors.btnPressedText"
+              :label="$t('settings.text')"
+            />
+            <ContrastRatio :contrast="previewContrast.btnText" />
           </div>
           <div class="color-item">
             <h4>{{ $t('settings.style.advanced_colors.borders') }}</h4>
@@ -433,7 +447,7 @@
             <ColorInput
               v-model="lightBgColorLocal"
               name="lightBg"
-              :label="$t('settings.style.advanced_colors.lightBg')"
+              :label="$t('settings.background')"
               :fallback="previewTheme.colors.lightBg"
             />
             <ColorInput
diff --git a/src/i18n/en.json b/src/i18n/en.json
index bd3d7413..544bc2ba 100644
--- a/src/i18n/en.json
+++ b/src/i18n/en.json
@@ -433,7 +433,9 @@
         "faint_text": "Faded text",
         "underlay": "Underlay",
         "poll": "Poll graph",
-        "icons": "Icons"
+        "icons": "Icons",
+        "lightBg": "Highlighted elements",
+        "pressed": "Pressed"
       },
       "radii": {
         "_tab_label": "Roundness"
diff --git a/src/services/style_setter/style_setter.js b/src/services/style_setter/style_setter.js
index 204c162b..61612cf4 100644
--- a/src/services/style_setter/style_setter.js
+++ b/src/services/style_setter/style_setter.js
@@ -144,7 +144,11 @@ export const generateColors = (themeData) => {
         // TODO: hack to keep rest of the code from complaining
         value = '#FF00FF'
       }
-      acc[k] = hex2rgb(value)
+      if (!value || value.startsWith('--')) {
+        acc[k] = value
+      } else {
+        acc[k] = hex2rgb(value)
+      }
     }
     return acc
   }, {})
diff --git a/src/services/theme_data/theme_data.service.js b/src/services/theme_data/theme_data.service.js
index 808f67d5..221c3b48 100644
--- a/src/services/theme_data/theme_data.service.js
+++ b/src/services/theme_data/theme_data.service.js
@@ -40,12 +40,27 @@ export const DEFAULT_OPACITY = {
 }
 
 export const SLOT_INHERITANCE = {
-  bg: null,
-  fg: null,
-  text: null,
+  bg: {
+    depends: [],
+    priority: 1
+  },
+  fg: {
+    depends: [],
+    priority: 1
+  },
+  text: {
+    depends: [],
+    priority: 1
+  },
   underlay: '#000000',
-  link: '--accent',
-  accent: '--link',
+  link: {
+    depends: ['accent'],
+    priority: 1
+  },
+  accent: {
+    depends: ['link'],
+    priority: 1
+  },
   faint: '--text',
   faintLink: '--link',
 
@@ -170,6 +185,26 @@ export const SLOT_INHERITANCE = {
     textColor: true
   },
 
+  btnPressed: '--btn',
+  btnPressedText: {
+    depends: ['btnText'],
+    layer: 'btn',
+    variant: 'btnPressed',
+    textColor: true
+  },
+  btnPressedPanelText: {
+    depends: ['btnPanelText'],
+    layer: 'btnPanel',
+    variant: 'btnPressed',
+    textColor: true
+  },
+  btnPressedTopBarText: {
+    depends: ['btnTopBarText'],
+    layer: 'btnTopBar',
+    variant: 'btnPressed',
+    textColor: true
+  },
+
   // Input fields
   input: '--fg',
   inputText: {
@@ -308,12 +343,30 @@ export const topoSort = (
   return output
 }
 
-export const SLOT_ORDERED = topoSort(SLOT_INHERITANCE)
+export const SLOT_ORDERED = topoSort(
+  Object.entries(SLOT_INHERITANCE)
+    .sort(([aK, aV], [bK, bV]) => ((aV && aV.priority) || 0) - ((bV && bV.priority) || 0))
+    .reduce((acc, [k, v]) => ({ ...acc, [k]: v }), {})
+)
+
+console.log(SLOT_ORDERED)
 
 export const getColors = (sourceColors, sourceOpacity, mod) => SLOT_ORDERED.reduce((acc, key) => {
   const value = SLOT_INHERITANCE[key]
-  if (sourceColors[key]) {
-    return { ...acc, [key]: { ...sourceColors[key] } }
+  const sourceColor = sourceColors[key]
+  if (sourceColor) {
+    let targetColor = sourceColor
+    if (typeof sourceColor === 'string' && sourceColor.startsWith('--')) {
+      const [variable, modifier] = sourceColor.split(/,/g).map(str => str.trim())
+      const variableSlot = variable.substring(2)
+      targetColor = acc[variableSlot] || sourceColors[variableSlot]
+      if (modifier) {
+        console.log(targetColor, acc, variableSlot)
+        targetColor = brightness(Number.parseFloat(modifier) * mod, targetColor).rgb
+      }
+      console.log(targetColor, acc, variableSlot)
+    }
+    return { ...acc, [key]: { ...targetColor } }
   } else if (typeof value === 'string' && value.startsWith('#')) {
     return { ...acc, [key]: convert(value).rgb }
   } else {