From b4f0393bbd46ab6161f33a37cfabb16d2d4a7fcf Mon Sep 17 00:00:00 2001
From: Ran Greenberg <rang@wix.com>
Date: Mon, 13 Mar 2017 11:40:32 +0200
Subject: [PATCH] add CameraKitCameraScreen

---
 src/CameraKitCameraScreen.js | 309 +++++++++++++++++++++++++++++++++++
 1 file changed, 309 insertions(+)
 create mode 100644 src/CameraKitCameraScreen.js

diff --git a/src/CameraKitCameraScreen.js b/src/CameraKitCameraScreen.js
new file mode 100644
index 0000000..c1b5ccd
--- /dev/null
+++ b/src/CameraKitCameraScreen.js
@@ -0,0 +1,309 @@
+import React, { Component } from 'react';
+import {
+  StyleSheet,
+  Text,
+  View,
+  TouchableOpacity,
+  Image
+} from 'react-native';
+
+
+import _ from 'lodash';
+
+
+import CameraKitCamera from './CameraKitCamera';
+
+const FLASH_MODE_AUTO = 'auto';
+const FLASH_MODE_ON = 'on';
+const FLASH_MODE_OFF = 'off';
+
+
+
+
+export default class CameraScreen extends Component {
+
+  constructor(props) {
+    super(props);
+    this.currentFlashArrayPosition = 0;
+    this.flashArray = [{
+      mode: FLASH_MODE_AUTO,
+      image: _.get(this.props, 'flashImages.auto')
+    },
+    {
+      mode: FLASH_MODE_ON,
+      image: _.get(this.props, 'flashImages.on')
+    },
+    {
+      mode: FLASH_MODE_OFF,
+      image: _.get(this.props, 'flashImages.off')
+    }
+    ];
+    this.state = {
+      captureImages: [],
+      flashData: this.flashArray[this.currentFlashArrayPosition],
+      ratios: [],
+      cameraOptions: {},
+      ratioArrayPosition: -1,
+      imageCaptured: undefined
+    };
+    this.onSetFlash = this.onSetFlash.bind(this);
+    this.onSwitchCameraPressed = this.onSwitchCameraPressed.bind(this);
+
+  }
+
+  componentDidMount() {
+    const cameraOptions = this.getCameraOptions();
+    let ratios = [];
+    if (this.props.cameraRatioOverlay) {
+      ratios = this.props.cameraRatioOverlay.ratios || [];
+    }
+    this.setState({
+      cameraOptions,
+      ratios: (ratios || []),
+      ratioArrayPosition: ((ratios.length > 0) ? 0 : -1)
+    });
+  }
+
+  getCameraOptions() {
+    const cameraOptions = {
+      flashMode: 'auto',
+      focusMode: 'on',
+      zoomMode: 'on'
+    };
+    if (this.props.cameraRatioOverlay) {
+      const overlay = this.props.cameraRatioOverlay;
+      cameraOptions.ratioOverlayColor = overlay.color || OVERLAY_DEFAULT_COLOR;
+
+      if (overlay.ratios && overlay.ratios.length > 0) {
+        cameraOptions.ratioOverlay = overlay.ratios[0];
+      }
+    }
+
+    return cameraOptions;
+  }
+
+  renderFlashButton() {
+    return (
+      <TouchableOpacity style={{ paddingHorizontal: 15 }} onPress={() => this.onSetFlash(FLASH_MODE_AUTO)}>
+        <Image
+          style={{ flex: 1, justifyContent: 'center' }}
+          source={this.state.flashData.image}
+          resizeMode={Image.resizeMode.contain}
+        />
+      </TouchableOpacity>
+    );
+  }
+
+  renderSwitchCameraButton() {
+    if (this.props.cameraFlipImage) {
+      return (
+        <TouchableOpacity style={{ paddingHorizontal: 15 }} onPress={this.onSwitchCameraPressed}>
+          <Image
+            style={{ flex: 1, justifyContent: 'center' }}
+            source={_.get(this.props, 'cameraFlipImage', require('./../images/cameraFlipIcon.png'))}
+            resizeMode={Image.resizeMode.contain}
+          />
+        </TouchableOpacity>
+      );
+    }
+    return null;
+  }
+
+  renderTopButtons() {
+    return (
+      <View style={styles.topButtons}>
+        {this.renderFlashButton()}
+        {this.renderSwitchCameraButton()}
+      </View>
+    );
+  }
+
+  renderCamera() {
+    return (
+      <View style={styles.cameraContainer}>
+        <CameraKitCamera
+          ref={(cam) => this.camera = cam}
+          style={{ flex: 1, justifyContent: 'flex-end' }}
+          cameraOptions={this.state.cameraOptions}
+        />
+      </View>
+    );
+  }
+
+
+  renderCaptureButton() {
+    return (
+      <View style={styles.captureButtonContainer}>
+        <TouchableOpacity
+          onPress={() => this.onCaptureImagePressed()}
+        >
+          <Image
+            style={styles.captureButton}
+            source={_.get(this.props, 'captureButtonImage', require('./../images/cameraButton.png'))}
+            resizeMode={'contain'}
+          />
+        </TouchableOpacity>
+      </View>
+    );
+  }
+
+  renderGap() {
+    return (
+      <View
+        style={styles.gap}
+      >
+      </View>
+    );
+
+  }
+
+  renderRatioStrip() {
+    if (this.state.ratios.length === 0) {
+      return null;
+    }
+    return (
+      <View style={{ flex: 1, flexDirection: 'column', justifyContent: 'flex-end' }}>
+        <View style={{ flexDirection: 'row', alignItems: 'center', paddingRight: 10, paddingLeft: 20 }}>
+          <Text style={styles.ratioBestText}>Your images look best at a {this.state.ratios[0] || ''} ratio</Text>
+          <TouchableOpacity
+            style={{ flex: 1, flexDirection: 'row', justifyContent: 'flex-end', alignItems: 'center', padding: 8 }}
+            onPress={() => this.onRatioButtonPressed()}
+          >
+            <Text style={styles.ratioText}>{this.state.cameraOptions.ratioOverlay}</Text>
+          </TouchableOpacity>
+        </View>
+      </View>
+    );
+  }
+
+  onButtonPressed(type) {
+    this.props.onBottomButtonPressed({ type, captureImages: this.state.captureImages })
+  }
+
+
+  renderBottomButton(type) {
+    const buttonText = _(this.props).get(`actions.${type}ButtonText`)
+    if (buttonText) {
+      return (
+        <TouchableOpacity
+          style={[styles.bottomButton, {justifyContent: type === 'left' ? 'flex-start' : 'flex-end'}]}
+          onPress={() => this.onButtonPressed(type)}
+        >
+          <Text style={styles.textStyle}>{_.get(this.props, `actions.${type}ButtonText`, type)}</Text>
+        </TouchableOpacity>
+      );
+    }
+    return (
+      this.renderGap()
+    );
+  }
+
+  renderBottomButtons() {
+    return (
+      <View style={styles.bottomButtons}>
+        {this.renderBottomButton('left')}
+        {this.renderCaptureButton()}
+        {this.renderBottomButton('right')}
+      </View>
+    );
+  }
+
+
+  onSwitchCameraPressed() {
+    this.camera.changeCamera();
+  }
+
+  async onSetFlash() {
+    this.currentFlashArrayPosition = (this.currentFlashArrayPosition + 1) % 3;
+    const newFlashData = this.flashArray[this.currentFlashArrayPosition];
+    this.setState({ flashData: newFlashData });
+    this.camera.setFlashMode(newFlashData.mode);
+  }
+
+  async onCaptureImagePressed() {
+    const image = await this.camera.capture(true);
+
+    if (image) {
+      this.setState({ imageCaptured: image, captureImages: _.concat(this.state.captureImages, image) });
+    }
+
+  }
+
+  onRatioButtonPressed() {
+    const newRatiosArrayPosition = ((this.state.ratioArrayPosition + 1) % this.state.ratios.length);
+    const newCameraOptions = _.update(this.state.cameraOptions, 'ratioOverlay', (val) => this.state.ratios[newRatiosArrayPosition]);
+    this.setState({ ratioArrayPosition: newRatiosArrayPosition, cameraOptions: newCameraOptions });
+  }
+
+  render() {
+    return (
+      <View style={{ flex: 1, backgroundColor: 'black' }}>
+        {this.renderTopButtons()}
+        {this.renderCamera()}
+        {this.renderRatioStrip()}
+        {this.renderBottomButtons()}
+      </View>
+    );
+  }
+}
+
+const styles = StyleSheet.create({
+  textStyle: {
+    color: 'white',
+    fontSize: 20
+  },
+  ratioBestText: {
+    color: 'white',
+    fontSize: 18,
+  },
+  ratioText: {
+    color: '#ffc233',
+    fontSize: 18
+  },
+  topButtons: {
+    flex: 1,
+    flexDirection: 'row',
+    justifyContent: 'space-between',
+    paddingTop: 8,
+    paddingBottom: 0
+  },
+  cameraContainer: {
+    flex: 10,
+    flexDirection: 'column'
+  },
+  bottomButtons: {
+    flex: 2,
+    flexDirection: 'row',
+    justifyContent: 'space-between',
+    padding: 14
+  },
+  gap: {
+    flex: 1,
+    flexDirection: 'row',
+    justifyContent: 'flex-end',
+    alignItems: 'center',
+    padding: 10
+  },
+  captureButtonContainer: {
+    flex: 1,
+    justifyContent: 'center',
+    alignItems: 'center',
+  },
+  captureButton: {
+    flex: 1,
+    alignSelf: 'center',
+    alignItems: 'center',
+    justifyContent: 'center'
+  },
+  captureNumber: {
+    justifyContent: 'center',
+    color: 'black',
+    backgroundColor: 'transparent'
+  },
+  bottomButton: {
+    flex: 1,
+    flexDirection: 'row',
+    alignItems: 'center',
+    padding: 10
+  }
+});