feat(ui): add fullscreen button (#2276)

* feat(ui): add fullscreen button

* fix: fullscreen图标修改，添加exit icon

src/assets/icons/fullscreen-exit.svg

@@ -0,0 +1,3 @@
+<svg width="14" height="14" viewBox="0 0 14 14" data-darkreader-inline-fill="" xmlns="http://www.w3.org/2000/svg">
+  <path id="path" d="M1 11L3 11L3 13C3 13.55 3.45 14 4 14C4.55 14 5 13.55 5 13L5 10C5 9.45 4.55 9 4 9L1 9C0.45 9 0 9.45 0 10C0 10.55 0.45 11 1 11ZM11 3L11 1C11 0.45 10.55 0 10 0C9.45 0 9 0.45 9 1L9 4C9 4.54 9.45 5 10 5L13 5C13.55 5 14 4.54 14 4C14 3.45 13.55 3 13 3L11 3Z"/>
+</svg>

src/assets/icons/fullscreen.svg

@@ -0,0 +1,3 @@
+<svg width="14" height="14" viewBox="0 0 14 14" data-darkreader-inline-fill="" xmlns="http://www.w3.org/2000/svg">
+  <path id="path" d="M1 9C0.45 9 0 9.45 0 10L0 13C0 13.55 0.45 14 1 14L4 14C4.55 14 5 13.55 5 13C5 12.45 4.55 12 4 12L2 12L2 10C2 9.45 1.55 9 1 9ZM9 1C9 1.54 9.45 2 10 2L12 2L12 4C12 4.54 12.45 5 13 5C13.55 5 14 4.54 14 4L14 1C14 0.45 13.55 0 13 0L10 0C9.45 0 9 0.45 9 1Z"/>
+</svg>

src/views/lyrics.vue

@@ -268,6 +268,12 @@
           <svg-icon icon-class="arrow-down" />
         </button>
       </div>
+      <div class="close-button" style="left: 24px" @click="fullscreen">
+        <button>
+          <svg-icon v-if="isFullscreen" icon-class="fullscreen-exit" />
+          <svg-icon v-else icon-class="fullscreen" />
+        </button>
+      </div>
     </div>
   </transition>
 </template>
@@ -305,6 +311,7 @@ export default {
       minimize: true,
       background: '',
       date: this.formatTime(new Date()),
+      isFullscreen: !!document.fullscreenElement,
     };
   },
   computed: {
@@ -435,6 +442,15 @@ export default {
     this.getLyric();
     this.getCoverColor();
     this.initDate();
+    document.addEventListener('keydown', e => {
+      if (e.key === 'F11') {
+        e.preventDefault();
+        this.fullscreen();
+      }
+    });
+    document.addEventListener('fullscreenchange', () => {
+      this.isFullscreen = !!document.fullscreenElement;
+    });
   },
   beforeDestroy: function () {
     if (this.timer) {
@@ -466,6 +482,13 @@ export default {
         second.padStart(2, '0')
       );
     },
+    fullscreen() {
+      if (document.fullscreenElement) {
+        document.exitFullscreen();
+      } else {
+        document.documentElement.requestFullscreen();
+      }
+    },
     addToPlaylist() {
       if (!isAccountLoggedIn()) {
         this.showToast(locale.t('toast.needToLogin'));