From b69e950076535b068ab98af0baf6e6c710d84809 Mon Sep 17 00:00:00 2001
From: Fabio Manganiello <fabio@manganiello.tech>
Date: Sat, 20 Jul 2024 02:23:56 +0200
Subject: [PATCH] [Camera UI] Dynamic fullscreen support.

---
 .../src/components/panels/Camera/Index.vue    | 33 +++++---
 .../src/components/panels/Camera/Mixin.vue    | 79 ++++++++++++++++---
 2 files changed, 87 insertions(+), 25 deletions(-)

diff --git a/platypush/backend/http/webapp/src/components/panels/Camera/Index.vue b/platypush/backend/http/webapp/src/components/panels/Camera/Index.vue
index 1aec37fde0..c5b4c2c365 100644
--- a/platypush/backend/http/webapp/src/components/panels/Camera/Index.vue
+++ b/platypush/backend/http/webapp/src/components/panels/Camera/Index.vue
@@ -1,9 +1,16 @@
 <template>
-  <div class="camera">
-    <div class="camera-container">
-      <div class="frame-container" ref="frameContainer">
-        <div class="no-frame" v-if="!streaming && !capturing && !captured">The camera is not active</div>
-        <img class="frame" :src="url" ref="frame" alt="">
+  <div class="camera" ref="cameraRoot">
+    <div class="camera-container"
+         :class="{fullscreen: fullscreen_}"
+         ref="cameraContainer">
+      <div class="frame-canvas" ref="frameCanvas">
+        <div class="frame-container"
+             :class="{vertical: isCameraVertical, horizontal: !isCameraVertical}"
+             :style="{aspectRatio: aspectRatio}"
+             ref="frameContainer">
+          <div class="no-frame" v-if="!streaming && !capturing && !captured">The camera is not active</div>
+          <img class="frame" :src="url" ref="frame" alt="">
+        </div>
       </div>
 
       <div class="controls">
@@ -34,6 +41,14 @@
           <button type="button" @click="$refs.paramsModal.show()" title="Settings">
             <i class="fas fa-cog" />
           </button>
+
+          <button type="button"
+                  :title="fullscreen_ ? 'Exit fullscreen' : 'Fullscreen'"
+                  @click="fullscreen_ = !fullscreen_"
+                  v-if="!fullscreen">
+            <i class="fas fa-expand" v-if="!fullscreen_" />
+            <i class="fas fa-compress" v-else />
+          </button>
         </div>
       </div>
     </div>
@@ -104,7 +119,7 @@
           <input name="grayscale" type="checkbox" v-model="attrs.grayscale" @change="onGrayscaleChanged"/>
         </label>
 
-        <Slot />
+        <slot />
       </div>
     </Modal>
   </div>
@@ -118,12 +133,6 @@ export default {
   name: "Camera",
   components: {Modal},
   mixins: [CameraMixin],
-  props: {
-    cameraPlugin: {
-      type: String,
-      required: true,
-    },
-  },
 
   computed: {
     fullURL() {
diff --git a/platypush/backend/http/webapp/src/components/panels/Camera/Mixin.vue b/platypush/backend/http/webapp/src/components/panels/Camera/Mixin.vue
index b4787332ff..2148e0b192 100644
--- a/platypush/backend/http/webapp/src/components/panels/Camera/Mixin.vue
+++ b/platypush/backend/http/webapp/src/components/panels/Camera/Mixin.vue
@@ -6,6 +6,11 @@ export default {
   mixins: [Utils],
 
   props: {
+    fullscreen: {
+      type: Boolean,
+      default: false,
+    },
+
     cameraPlugin: {
       type: String,
       required: true,
@@ -17,9 +22,11 @@ export default {
       streaming: false,
       capturing: false,
       captured: false,
+      fullscreen_: false,
       audioOn: false,
       url: null,
       attrs: {},
+      resizeObserver: null,
     }
   },
 
@@ -37,6 +44,20 @@ export default {
         grayscale: parseInt(0 + this.attrs.grayscale),
       }
     },
+
+    aspectRatio() {
+      if (!this.attrs?.resolution)
+        return 1
+
+      return `${this.attrs.resolution[0]}/${this.attrs.resolution[1]}`
+    },
+
+    isCameraVertical() {
+      if (!this.attrs?.resolution)
+        return false
+
+      return this.attrs.resolution[1] > this.attrs.resolution[0]
+    },
   },
 
   methods: {
@@ -82,25 +103,41 @@ export default {
     },
 
     onDeviceChanged() {},
-    onFlipChanged() {},
+
+    onFlipChanged() {
+      this.onSizeChanged()
+    },
+
     onSizeChanged() {
       const degToRad = (deg) => (deg * Math.PI)/180
       const rot = degToRad(this.params.rotate)
-      let width = Math.round(this.params.scale_x * Math.abs(this.params.resolution[0] * Math.cos(rot) + this.params.resolution[1] * Math.sin(rot)))
-      let height = Math.round(this.params.scale_y * Math.abs(this.params.resolution[0] * Math.sin(rot) + this.params.resolution[1] * Math.cos(rot)))
+      const outerWidth = this.$refs.frameContainer.parentElement.offsetWidth
+      const outerHeight = this.$refs.frameContainer.parentElement.offsetHeight
 
-      if (width > window.innerWidth) {
-        height = Math.round(height * (window.innerWidth / width))
-        width = window.innerWidth
+      let width = (
+        Math.round(
+          this.params.scale_x * Math.abs(this.params.resolution[0] * Math.cos(rot) + this.params.resolution[1] * Math.sin(rot))
+        ) + 'px'
+      )
+
+      let height = (
+        Math.round(
+          this.params.scale_y * Math.abs(this.params.resolution[0] * Math.sin(rot) + this.params.resolution[1] * Math.cos(rot))
+        ) + 'px'
+      )
+
+      if (this.fullscreen_) {
+        if (this.params.resolution[0] > this.params.resolution[1]) {
+          width = '100%'
+          height = (outerHeight * (this.params.resolution[1] / this.params.resolution[0])) + 'px'
+        } else {
+          height = '100%'
+          width = (outerWidth * (this.params.resolution[0] / this.params.resolution[1])) + 'px'
+        }
       }
 
-      if (height > window.innerHeight) {
-        width = Math.round(width * (window.innerHeight / height))
-        height = window.innerHeight
-      }
-
-      this.$refs.frameContainer.style.width = `${width}px`
-      this.$refs.frameContainer.style.height = `${height}px`
+      this.$refs.frameContainer.style.width = width
+      this.$refs.frameContainer.style.height = height
     },
 
     onFpsChanged() {},
@@ -133,6 +170,7 @@ export default {
   },
 
   mounted() {
+    this.fullscreen_ = this.fullscreen
     this.$refs.frame.addEventListener('load', this.onFrameLoaded)
     this.onSizeChanged()
     this.$watch(() => this.attrs.resolution, this.onSizeChanged)
@@ -141,6 +179,21 @@ export default {
     this.$watch(() => this.attrs.rotate, this.onSizeChanged)
     this.$watch(() => this.attrs.scale_x, this.onSizeChanged)
     this.$watch(() => this.attrs.scale_y, this.onSizeChanged)
+
+    const onOrientationOrSizeChange = () => {
+      this.onSizeChanged()
+    }
+
+    onOrientationOrSizeChange()
+
+    this.$nextTick(() => {
+      this.resizeObserver = new ResizeObserver(onOrientationOrSizeChange)
+      this.resizeObserver.observe(this.$refs?.frameContainer?.parentElement)
+    })
+  },
+
+  unmouted() {
+    this.resizeObserver?.disconnect()
   },
 }
 </script>