From 6dc14ec51ba067339a820f590ff96f7b6fc93c8c Mon Sep 17 00:00:00 2001
From: alger <algerkc@qq.com>
Date: Sat, 14 Sep 2024 18:22:56 +0800
Subject: [PATCH] =?UTF-8?q?=E2=9C=A8=20feat:=20=E4=BC=98=E5=8C=96=E6=AD=8C?=
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---
 src/layout/components/MusicFull.vue |  35 ++++----
 src/layout/components/PlayBar.vue   |  18 ++--
 src/utils/index.ts                  |   4 +-
 src/utils/linearColor.ts            | 132 ++++++++++++++++++++++++++++
 4 files changed, 166 insertions(+), 23 deletions(-)
 create mode 100644 src/utils/linearColor.ts

diff --git a/src/layout/components/MusicFull.vue b/src/layout/components/MusicFull.vue
index 80ec846..8699406 100644
--- a/src/layout/components/MusicFull.vue
+++ b/src/layout/components/MusicFull.vue
@@ -1,11 +1,7 @@
 <template>
   <n-drawer :show="musicFull" height="100vh" placement="bottom" :style="{ backgroundColor: 'transparent' }">
     <div id="drawer-target">
-      <div
-        class="drawer-back"
-        :class="{ paused: !isPlaying }"
-        :style="{ backgroundImage: `url(${getImgUrl(playMusic?.picUrl, '300y300')})` }"
-      ></div>
+      <div class="drawer-back" :style="{ background: background }"></div>
       <div class="music-img">
         <n-image ref="PicImgRef" :src="getImgUrl(playMusic?.picUrl, '300y300')" class="img" lazy preview-disabled />
       </div>
@@ -62,6 +58,13 @@ import { getImgUrl } from '@/utils';
 
 const store = useStore();
 
+// 播放的音乐信息
+const playMusic = computed(() => store.state.playMusic as SongResult);
+// const isPlaying = computed(() => store.state.play as boolean);
+// 获取歌词滚动dom
+const lrcSider = ref<any>(null);
+const isMouse = ref(false);
+
 const props = defineProps({
   musicFull: {
     type: Boolean,
@@ -71,14 +74,12 @@ const props = defineProps({
     type: HTMLAudioElement,
     default: null,
   },
+  background: {
+    type: String,
+    default: '',
+  },
 });
 
-// 播放的音乐信息
-const playMusic = computed(() => store.state.playMusic as SongResult);
-const isPlaying = computed(() => store.state.play as boolean);
-// 获取歌词滚动dom
-const lrcSider = ref<any>(null);
-const isMouse = ref(false);
 // 歌词滚动方法
 const lrcScroll = () => {
   if (props.musicFull && !isMouse.value) {
@@ -110,14 +111,16 @@ defineExpose({
   }
 }
 .drawer-back {
-  @apply absolute bg-cover bg-center opacity-70;
-  filter: blur(80px) brightness(80%);
+  @apply absolute bg-cover bg-center;
+  filter: brightness(80%);
   z-index: -1;
   width: 200%;
   height: 200%;
   top: -50%;
   left: -50%;
-  animation: round 20s linear infinite;
+  // animation: round 20s linear infinite;
+  // will-change: transform;
+  // transform: translateZ(0);
 }
 
 .drawer-back.paused {
@@ -162,7 +165,7 @@ defineExpose({
     width: 500px;
     height: 550px;
     .now-text {
-      @apply text-red-500;
+      @apply text-green-500;
     }
     &-text {
       @apply text-white text-lg flex flex-col justify-center items-center cursor-pointer font-bold;
@@ -170,7 +173,7 @@ defineExpose({
       transition: all 0.2s ease-out;
 
       &:hover {
-        @apply font-bold text-red-500;
+        @apply font-bold text-green-500;
       }
 
       &-tr {
diff --git a/src/layout/components/PlayBar.vue b/src/layout/components/PlayBar.vue
index 9416a9d..2204e64 100644
--- a/src/layout/components/PlayBar.vue
+++ b/src/layout/components/PlayBar.vue
@@ -1,6 +1,11 @@
 <template>
   <!-- 展开全屏 -->
-  <music-full ref="MusicFullRef" v-model:music-full="musicFullVisible" :audio="audio.value as HTMLAudioElement" />
+  <music-full
+    ref="MusicFullRef"
+    v-model:music-full="musicFullVisible"
+    :audio="audio.value as HTMLAudioElement"
+    :background="background"
+  />
   <!-- 底部播放栏 -->
   <div
     class="music-play-bar"
@@ -100,6 +105,7 @@ import SongItem from '@/components/common/SongItem.vue';
 import { allTime, isElectron, loadLrc, nowTime, openLyric, sendLyricToWin } from '@/hooks/MusicHook';
 import type { SongResult } from '@/type/music';
 import { getImgUrl, secondToMinute, setAnimationClass } from '@/utils';
+import { getImageLinearBackground } from '@/utils/linearColor';
 
 import MusicFull from './MusicFull.vue';
 
@@ -115,13 +121,15 @@ const playList = computed(() => store.state.playList as SongResult[]);
 const audio = {
   value: document.querySelector('#MusicAudio') as HTMLAudioElement,
 };
+const background = ref('#000');
 
 watch(
-  () => store.state.playMusicUrl,
-  () => {
+  () => store.state.playMusic,
+  async () => {
     loadLrc(playMusic.value.id);
+    background.value = await getImageLinearBackground(getImgUrl(playMusic.value?.picUrl, '300y300'));
   },
-  { immediate: true },
+  { immediate: true, deep: true },
 );
 
 const audioPlay = () => {
@@ -273,8 +281,8 @@ const setMusicFull = () => {
   }
 
   &-play {
-    @apply flex justify-center items-center w-12 h-12 rounded-full mx-4 hover:bg-green-500 transition;
     background: #383838;
+    @apply flex justify-center items-center w-12 h-12 rounded-full mx-4 hover:bg-green-500 transition bg-opacity-40;
   }
 }
 
diff --git a/src/utils/index.ts b/src/utils/index.ts
index 8307df8..53cd57d 100644
--- a/src/utils/index.ts
+++ b/src/utils/index.ts
@@ -63,14 +63,14 @@ export const getMusicProxyUrl = (url: string) => {
   return `${ProxyUrl}/mc?url=${PUrl}`;
 };
 
-export const getImgUrl = computed(() => (url: string | undefined, size: string = '') => {
+export const getImgUrl = (url: string | undefined, size: string = '') => {
   const bdUrl = 'https://image.baidu.com/search/down?url=';
   const imgUrl = `${url}?param=${size}`;
   if (!getIsMc()) {
     return imgUrl;
   }
   return `${bdUrl}${encodeURIComponent(imgUrl)}`;
-});
+};
 
 export const isMobile = computed(() => {
   const flag = navigator.userAgent.match(
diff --git a/src/utils/linearColor.ts b/src/utils/linearColor.ts
new file mode 100644
index 0000000..d7f96bd
--- /dev/null
+++ b/src/utils/linearColor.ts
@@ -0,0 +1,132 @@
+export const getImageLinearBackground = async (imageSrc: string): Promise<string> => {
+  const primaryColor = await getImagePrimaryColor(imageSrc);
+  return generateGradientBackground(primaryColor);
+};
+
+const getImagePrimaryColor = (imageSrc: string): Promise<string> => {
+  return new Promise((resolve, reject) => {
+    const img = new Image();
+    img.crossOrigin = 'Anonymous';
+    img.src = imageSrc;
+
+    img.onload = () => {
+      const canvas = document.createElement('canvas');
+      const ctx = canvas.getContext('2d');
+      if (!ctx) {
+        reject(new Error('无法获取canvas上下文'));
+        return;
+      }
+
+      canvas.width = img.width;
+      canvas.height = img.height;
+      ctx.drawImage(img, 0, 0, canvas.width, canvas.height);
+
+      const imageData = ctx.getImageData(0, 0, canvas.width, canvas.height);
+      const color = getAverageColor(imageData.data);
+      resolve(`rgb(${color.join(',')})`);
+    };
+
+    img.onerror = () => reject(new Error('图片加载失败'));
+  });
+};
+
+const getAverageColor = (data: Uint8ClampedArray): number[] => {
+  let r = 0;
+  let g = 0;
+  let b = 0;
+  let count = 0;
+  for (let i = 0; i < data.length; i += 4) {
+    r += data[i];
+    g += data[i + 1];
+    b += data[i + 2];
+    count++;
+  }
+  return [Math.round(r / count), Math.round(g / count), Math.round(b / count)];
+};
+
+const generateGradientBackground = (color: string): string => {
+  const [r, g, b] = color.match(/\d+/g)?.map(Number) || [0, 0, 0];
+  const [h, s, l] = rgbToHsl(r, g, b);
+
+  // 增加亮度和暗度的差异
+  const lightL = Math.min(l + 0.8, 0.95);
+  const darkL = Math.max(l - 0.5, 0.05);
+  const midL = (lightL + darkL) / 2;
+
+  // 调整饱和度以增强效果
+  const lightS = Math.min(s * 0.8, 1);
+  const darkS = Math.min(s * 1.2, 1);
+
+  const [lightR, lightG, lightB] = hslToRgb(h, lightS, lightL);
+  const [midR, midG, midB] = hslToRgb(h, s, midL);
+  const [darkR, darkG, darkB] = hslToRgb(h, darkS, darkL);
+
+  const lightColor = `rgb(${lightR}, ${lightG}, ${lightB})`;
+  const midColor = `rgb(${midR}, ${midG}, ${midB})`;
+  const darkColor = `rgb(${darkR}, ${darkG}, ${darkB})`;
+
+  // 使用三个颜色点创建更丰富的渐变
+  return `linear-gradient(to bottom, ${lightColor} 0%, ${midColor} 50%, ${darkColor} 100%)`;
+};
+
+// Helper functions (unchanged)
+function rgbToHsl(r: number, g: number, b: number): [number, number, number] {
+  r /= 255;
+  g /= 255;
+  b /= 255;
+  const max = Math.max(r, g, b);
+  const min = Math.min(r, g, b);
+  let h = 0;
+  let s;
+  const l = (max + min) / 2;
+
+  if (max === min) {
+    h = s = 0;
+  } else {
+    const d = max - min;
+    s = l > 0.5 ? d / (2 - max - min) : d / (max + min);
+    switch (max) {
+      case r:
+        h = (g - b) / d + (g < b ? 6 : 0);
+        break;
+      case g:
+        h = (b - r) / d + 2;
+        break;
+      case b:
+        h = (r - g) / d + 4;
+        break;
+      default:
+        break;
+    }
+    h /= 6;
+  }
+
+  return [h, s, l];
+}
+
+function hslToRgb(h: number, s: number, l: number): [number, number, number] {
+  let r;
+  let g;
+  let b;
+
+  if (s === 0) {
+    r = g = b = l;
+  } else {
+    const hue2rgb = (p: number, q: number, t: number) => {
+      if (t < 0) t += 1;
+      if (t > 1) t -= 1;
+      if (t < 1 / 6) return p + (q - p) * 6 * t;
+      if (t < 1 / 2) return q;
+      if (t < 2 / 3) return p + (q - p) * (2 / 3 - t) * 6;
+      return p;
+    };
+
+    const q = l < 0.5 ? l * (1 + s) : l + s - l * s;
+    const p = 2 * l - q;
+    r = hue2rgb(p, q, h + 1 / 3);
+    g = hue2rgb(p, q, h);
+    b = hue2rgb(p, q, h - 1 / 3);
+  }
+
+  return [Math.round(r * 255), Math.round(g * 255), Math.round(b * 255)];
+}