From 30f029e8598a7918c7bb6654bce5ba9339df4aee Mon Sep 17 00:00:00 2001
From: Kirill Shumilov <brusher.designer@gmail.com>
Date: Thu, 6 Feb 2020 15:13:31 +0300
Subject: [PATCH] refactor(xod-client): get rid of recompose from
 ColorPinWidget due to optimization and tweak throttling

---
 .../pinWidgets/ColorPinWidget.jsx             | 204 +++++++++---------
 1 file changed, 108 insertions(+), 96 deletions(-)

diff --git a/packages/xod-client/src/editor/components/inspectorWidgets/pinWidgets/ColorPinWidget.jsx b/packages/xod-client/src/editor/components/inspectorWidgets/pinWidgets/ColorPinWidget.jsx
index 307d00997..dd93f07b0 100644
--- a/packages/xod-client/src/editor/components/inspectorWidgets/pinWidgets/ColorPinWidget.jsx
+++ b/packages/xod-client/src/editor/components/inspectorWidgets/pinWidgets/ColorPinWidget.jsx
@@ -3,8 +3,7 @@ import React from 'react';
 import PropTypes from 'prop-types';
 import { connect } from 'react-redux';
 import { bindActionCreators } from 'redux';
-import { compose, withState, withHandlers, lifecycle } from 'recompose';
-import { debounce } from 'throttle-debounce';
+import { throttle } from 'throttle-debounce';
 
 import { showColorPickerWidget, tweakNodeProperty } from '../../../actions';
 import PinWidget from './PinWidget';
@@ -12,102 +11,113 @@ import { hex2color } from '../../ColorPicker';
 import ColorPickerWidget from '../../../containers/ColorPickerWidget';
 import { isSessionActive } from '../../../../debugger/selectors';
 
-const ColorPinWidget = compose(
-  withState('value', 'setValue', props => props.value),
-  withState('focused', 'setFocus', false),
-  // We have to handle input's selection in a tricky way,
-  // because we're changing it's value on focus
-  withState('selection', 'setSelection', [0, 0]),
-  withState('inputRef', 'setInputRef', null),
-  // We have to handle it in case we just added a leading quote
-  // before the literal
-  lifecycle({
-    componentDidUpdate(prevProps) {
-      if (prevProps.selection !== this.props.selection && this.props.inputRef) {
-        this.props.inputRef.setSelectionRange(
-          this.props.selection[0],
-          this.props.selection[1]
-        );
-      }
-    },
-  }),
-  withHandlers({
-    commit: ({ onChange }) => debounce(200, value => onChange(value)),
-  }),
-  withHandlers({
-    onChangeHandler: ({
-      entityId,
-      kind,
-      keyName,
-      isActiveSession,
-      tweakColor,
-      setValue,
-      commit,
-    }) => value => {
-      setValue(value);
-      commit(value);
-      if (isActiveSession) {
-        tweakColor(entityId, kind, keyName, value);
-      }
-    },
-  }),
-  withHandlers({
-    onInputChange: ({ onChangeHandler }) => event =>
-      onChangeHandler(event.target.value),
-    onWidgetChange: ({ onChangeHandler }) => color =>
-      onChangeHandler(color.hex),
-    onFocus: props => event => {
-      props.setSelection([
-        event.target.selectionStart,
-        event.target.selectionEnd,
-      ]);
-      props.setFocus(true);
-    },
-    onBlur: props => _ => {
-      props.setFocus(false);
-      props.setSelection([0, 0]);
-      props.onBlur();
-    },
-  })
-)(props => (
-  <PinWidget
-    elementId={props.elementId}
-    label={props.label}
-    dataType={props.dataType}
-    isConnected={props.isConnected}
-    isInvalid={props.isInvalid}
-    deducedType={props.deducedType}
-    isLastVariadicGroup={props.isLastVariadicGroup}
-    isBindable={props.isBindable}
-    direction={props.direction}
-  >
-    <span className="inspector-input-wrapper">
-      <input
-        className="inspectorTextInput"
-        type="text"
-        id={props.elementId}
-        value={props.value}
-        onChange={props.onInputChange}
-        onFocus={props.onFocus}
-        onBlur={props.onBlur}
-        onKeyDown={props.onKeyDown}
-        spellCheck={false}
-        ref={props.setInputRef}
-      />
-      <button
-        className="ClorPicker_toggleBtn"
-        style={{ background: props.value }}
-        onClick={() => props.showColorPickerWidget(`#${props.inputRef.id}`)}
-      />
-    </span>
-    <ColorPickerWidget
-      color={hex2color(props.value)}
-      onChange={props.onWidgetChange}
-    />
-  </PinWidget>
-));
+class ColorPinWidget extends React.Component {
+  constructor(props) {
+    super(props);
+    this.state = {
+      value: props.value,
+      focused: false,
+      selection: [0, 0],
+    };
+    this.inputRef = null;
+
+    this.onValueTweaked = throttle(50, this.onValueTweaked.bind(this));
+
+    this.onChangeHandler = this.onChangeHandler.bind(this);
+    this.onInputChange = this.onInputChange.bind(this);
+    this.onWidgetChange = this.onWidgetChange.bind(this);
+    this.onFocus = this.onFocus.bind(this);
+    this.onBlur = this.onBlur.bind(this);
+  }
+  componentDidUpdate(prevProps) {
+    if (prevProps.selection !== this.state.selection && this.inputRef) {
+      this.inputRef.setSelectionRange(
+        this.state.selection[0],
+        this.state.selection[1]
+      );
+    }
+  }
+
+  onValueTweaked(value) {
+    const { entityId, kind, keyName, tweakColor } = this.props;
+    return tweakColor(entityId, kind, keyName, value);
+  }
+  onChangeHandler(value) {
+    this.setState({ value });
+    this.props.onChange(value);
+    if (this.props.isActiveSession) {
+      this.onValueTweaked(value);
+    }
+  }
+  onInputChange(event) {
+    this.onChangeHandler(event.target.value);
+  }
+  onWidgetChange(color) {
+    this.onChangeHandler(color.hex);
+  }
+  onFocus(event) {
+    this.setState({
+      focused: true,
+      selection: [event.target.selectionStart, event.target.selectionEnd],
+    });
+  }
+  onBlur() {
+    this.setState({
+      focused: false,
+      selection: [0, 0],
+    });
+    this.props.onBlur();
+  }
+
+  render() {
+    return (
+      <PinWidget
+        elementId={this.props.elementId}
+        label={this.props.label}
+        dataType={this.props.dataType}
+        isConnected={this.props.isConnected}
+        isInvalid={this.props.isInvalid}
+        deducedType={this.props.deducedType}
+        isLastVariadicGroup={this.props.isLastVariadicGroup}
+        isBindable={this.props.isBindable}
+        direction={this.props.direction}
+      >
+        <span className="inspector-input-wrapper">
+          <input
+            className="inspectorTextInput"
+            type="text"
+            id={this.props.elementId}
+            value={this.props.value}
+            onChange={this.onInputChange}
+            onFocus={this.onFocus}
+            onBlur={this.onBlur}
+            onKeyDown={this.props.onKeyDown}
+            spellCheck={false}
+            ref={el => {
+              this.inputRef = el;
+            }}
+          />
+          <button
+            className="ClorPicker_toggleBtn"
+            style={{ background: this.props.value }}
+            onClick={() =>
+              this.props.showColorPickerWidget(`#${this.inputRef.id}`)
+            }
+          />
+        </span>
+        <ColorPickerWidget
+          color={hex2color(this.props.value)}
+          onChange={this.onWidgetChange}
+        />
+      </PinWidget>
+    );
+  }
+}
 
 ColorPinWidget.propTypes = {
+  entityId: PropTypes.string.isRequired,
+  keyName: PropTypes.string.isRequired,
+  kind: PropTypes.string.isRequired,
   elementId: PropTypes.string.isRequired,
   label: PropTypes.string,
   dataType: PropTypes.string,
@@ -117,12 +127,14 @@ ColorPinWidget.propTypes = {
   isBindable: PropTypes.bool,
   deducedType: PropTypes.object,
   direction: PropTypes.string,
+  isActiveSession: PropTypes.bool,
 
   value: PropTypes.string,
   onBlur: PropTypes.func.isRequired,
   onChange: PropTypes.func.isRequired,
   onKeyDown: PropTypes.func.isRequired,
   showColorPickerWidget: PropTypes.func.isRequired,
+  tweakColor: PropTypes.func.isRequired,
 };
 
 ColorPinWidget.defaultProps = {