[EuiComboBox] Replace autosizing input dependency with more performant utility

package.json

@@ -66,7 +66,6 @@
     "@hello-pangea/dnd": "^16.3.0",
     "@types/lodash": "^4.14.198",
     "@types/numeral": "^2.0.2",
-    "@types/react-input-autosize": "^2.2.1",
     "@types/react-window": "^1.8.5",
     "@types/refractor": "^3.0.2",
     "@types/resize-observer-browser": "^0.1.7",
@@ -80,7 +79,6 @@
     "react-dropzone": "^11.7.1",
     "react-element-to-jsx-string": "^14.3.4",
     "react-focus-on": "^3.9.1",
-    "react-input-autosize": "^3.0.0",
     "react-is": "^17.0.2",
     "react-remove-scroll-bar": "^2.3.4",
     "react-virtualized-auto-sizer": "^1.0.20",

scripts/jest/setup/mocks.js

@@ -15,6 +15,12 @@ jest.mock('./../../../src/components/icon', () => {
   return { EuiIcon };
 });
 
+jest.mock('./../../../src/components/text_truncate', () => {
+  const rest = jest.requireActual('./../../../src/components/text_truncate');
+  const utils = require('./../../../src/components/text_truncate/utils.testenv');
+  return { ...rest, ...utils };
+});
+
 jest.mock('./../../../src/services/accessibility', () => {
   const a11y = jest.requireActual('./../../../src/services/accessibility');
   const {

src/components/combo_box/__snapshots__/combo_box.test.tsx.snap

@@ -16,26 +16,19 @@ exports[`EuiComboBox is rendered 1`] = `
         data-test-subj="comboBoxInput"
         tabindex="-1"
       >
-        <div
+        <input
+          aria-autocomplete="list"
+          aria-controls=""
+          aria-expanded="false"
+          aria-invalid="false"
+          aria-label="aria-label"
           class="euiComboBox__input"
-          style="font-size: 14px; display: inline-block;"
-        >
-          <input
-            aria-autocomplete="list"
-            aria-controls=""
-            aria-expanded="false"
-            aria-invalid="false"
-            aria-label="aria-label"
-            data-test-subj="comboBoxSearchInput"
-            id="generated-id__eui-combobox-id"
-            role="combobox"
-            style="box-sizing: content-box; width: 2px;"
-            value=""
-          />
-          <div
-            style="position: absolute; top: 0px; left: 0px; visibility: hidden; height: 0px; overflow: scroll; white-space: pre; font-size: 14px; font-family: 'Inter',BlinkMacSystemFont,Helvetica,Arial,sans-serif; font-weight: 400; letter-spacing: normal; text-transform: none;"
-          />
-        </div>
+          data-test-subj="comboBoxSearchInput"
+          id="generated-id__eui-combobox-id"
+          role="combobox"
+          style="inline-size: 2px;"
+          value=""
+        />
       </div>
       <div
         class="euiFormControlLayoutIcons euiFormControlLayoutIcons--right euiFormControlLayoutIcons--absolute"
@@ -67,7 +60,6 @@ exports[`props aria-label attribute is rendered 1`] = `
 >
   <EuiComboBoxInput
     aria-label="Test label"
-    autoSizeInputRef={[Function]}
     compressed={false}
     fullWidth={false}
     hasSelectedOptions={false}
@@ -102,7 +94,6 @@ exports[`props aria-labelledby attribute is rendered 1`] = `
 >
   <EuiComboBoxInput
     aria-labelledby="test-heading-id"
-    autoSizeInputRef={[Function]}
     compressed={false}
     fullWidth={false}
     hasSelectedOptions={false}
@@ -136,7 +127,6 @@ exports[`props autoFocus is rendered 1`] = `
   onKeyDown={[Function]}
 >
   <EuiComboBoxInput
-    autoSizeInputRef={[Function]}
     compressed={false}
     fullWidth={false}
     hasSelectedOptions={true}
@@ -179,7 +169,6 @@ exports[`props custom ID is rendered 1`] = `
   onKeyDown={[Function]}
 >
   <EuiComboBoxInput
-    autoSizeInputRef={[Function]}
     compressed={false}
     fullWidth={false}
     hasSelectedOptions={true}
@@ -222,7 +211,6 @@ exports[`props delimiter is rendered 1`] = `
   onKeyDown={[Function]}
 >
   <EuiComboBoxInput
-    autoSizeInputRef={[Function]}
     compressed={false}
     fullWidth={false}
     hasSelectedOptions={true}
@@ -265,7 +253,6 @@ exports[`props full width is rendered 1`] = `
   onKeyDown={[Function]}
 >
   <EuiComboBoxInput
-    autoSizeInputRef={[Function]}
     compressed={false}
     fullWidth={true}
     hasSelectedOptions={true}
@@ -305,7 +292,6 @@ exports[`props isClearable=false disallows user from clearing input when no opti
   onKeyDown={[Function]}
 >
   <EuiComboBoxInput
-    autoSizeInputRef={[Function]}
     compressed={false}
     fullWidth={false}
     hasSelectedOptions={false}
@@ -338,7 +324,6 @@ exports[`props isClearable=false disallows user from clearing input when options
   onKeyDown={[Function]}
 >
   <EuiComboBoxInput
-    autoSizeInputRef={[Function]}
     compressed={false}
     fullWidth={false}
     hasSelectedOptions={true}
@@ -380,7 +365,6 @@ exports[`props isDisabled is rendered 1`] = `
   onKeyDown={[Function]}
 >
   <EuiComboBoxInput
-    autoSizeInputRef={[Function]}
     compressed={false}
     fullWidth={false}
     hasSelectedOptions={true}
@@ -635,25 +619,18 @@ exports[`props options list is rendered 1`] = `
         data-test-subj="comboBoxInput"
         tabindex="-1"
       >
-        <div
+        <input
+          aria-autocomplete="list"
+          aria-controls="generated-id_listbox"
+          aria-expanded="true"
+          aria-invalid="false"
           class="euiComboBox__input"
-          style="font-size: 14px; display: inline-block;"
-        >
-          <input
-            aria-autocomplete="list"
-            aria-controls="generated-id_listbox"
-            aria-expanded="true"
-            aria-invalid="false"
-            data-test-subj="comboBoxSearchInput"
-            id="generated-id__eui-combobox-id"
-            role="combobox"
-            style="box-sizing: content-box; width: 2px;"
-            value=""
-          />
-          <div
-            style="position: absolute; top: 0px; left: 0px; visibility: hidden; height: 0px; overflow: scroll; white-space: pre; font-family: -webkit-small-control; letter-spacing: normal; text-transform: none;"
-          />
-        </div>
+          data-test-subj="comboBoxSearchInput"
+          id="generated-id__eui-combobox-id"
+          role="combobox"
+          style="inline-size: 2px;"
+          value=""
+        />
       </div>
       <div
         class="euiFormControlLayoutIcons euiFormControlLayoutIcons--right euiFormControlLayoutIcons--absolute"
@@ -952,7 +929,6 @@ exports[`props selectedOptions are rendered 1`] = `
   onKeyDown={[Function]}
 >
   <EuiComboBoxInput
-    autoSizeInputRef={[Function]}
     compressed={false}
     fullWidth={false}
     hasSelectedOptions={true}
@@ -995,7 +971,6 @@ exports[`props singleSelection is rendered 1`] = `
   onKeyDown={[Function]}
 >
   <EuiComboBoxInput
-    autoSizeInputRef={[Function]}
     compressed={false}
     fullWidth={false}
     hasSelectedOptions={true}
@@ -1036,7 +1011,6 @@ exports[`props singleSelection prepend and append is rendered 1`] = `
 >
   <EuiComboBoxInput
     append="String"
-    autoSizeInputRef={[Function]}
     compressed={false}
     fullWidth={false}
     hasSelectedOptions={false}
@@ -1079,7 +1053,6 @@ exports[`props singleSelection selects existing option when opened 1`] = `
   onKeyDown={[Function]}
 >
   <EuiComboBoxInput
-    autoSizeInputRef={[Function]}
     compressed={false}
     fullWidth={false}
     hasSelectedOptions={true}

src/components/combo_box/_combo_box.scss

@@ -55,27 +55,20 @@
   /**
    * 1. Force field height to match other field heights.
    * 2. Force input height to expand to fill this element.
-   * 3. Reset appearance on Safari.
-   * 4. Fix react-input-autosize appearance.
-   * 5. Prevent a lot of input from causing the react-input-autosize to overflow the container.
+   * 3. Reset input appearance to mimic text
    */
   .euiComboBox__input {
-    // stylelint-disable-next-line declaration-no-important
-    display: inline-flex !important; /* 1 */
-    height: $euiSizeXL; /* 2 */
-    overflow: hidden; /* 5 */
-
-    > input {
-      @include euiFont;
-      appearance: none; /* 3 */
-      padding: 0;
-      border: none;
-      background: transparent;
-      font-size: $euiFontSizeS;
-      color: $euiTextColor;
-      margin: $euiSizeXS;
-      line-height: $euiLineHeight; /* 4 */
-    }
+    block-size: $euiSizeL; /* 2 */
+    min-inline-size: 2px;
+    max-inline-size: 100%;
+    margin: $euiSizeXS;
+
+    /* 3 */
+    appearance: none;
+    outline: none;
+    border: none;
+    background: transparent;
+    color: $euiTextColor;
   }
 
   &.euiComboBox-isOpen {

src/components/combo_box/combo_box.spec.tsx

@@ -50,6 +50,42 @@ describe('EuiComboBox', () => {
     });
   });
 
+  describe('input auto sizing', () => {
+    it('resizes the width of the input based to fit the search text', () => {
+      cy.realMount(<EuiComboBox options={[]} />);
+      cy.get('[data-test-subj="comboBoxSearchInput"]').should(
+        'have.attr',
+        'style',
+        'inline-size: 2px;'
+      );
+
+      cy.get('[data-test-subj="comboBoxSearchInput"]').realClick();
+      cy.realType('lorem ipsum dolor');
+      cy.get('[data-test-subj="comboBoxSearchInput"]').should(
+        'have.attr',
+        'style',
+        'inline-size: 121px;'
+      );
+    });
+
+    it('does not exceed the maximum possible width of the input wrapper', () => {
+      cy.realMount(<EuiComboBox options={[]} />);
+      cy.get('[data-test-subj="comboBoxSearchInput"]').realClick();
+      cy.realType(
+        'Lorem ipsum dolor sit amet, consectetur adipiscing elit......'
+      );
+
+      cy.get('[data-test-subj="comboBoxSearchInput"]').should(
+        'have.attr',
+        'style',
+        'inline-size: 387px;'
+      );
+      cy.get('[data-test-subj="comboBoxSearchInput"]')
+        .invoke('width')
+        .should('be.eq', 354);
+    });
+  });
+
   describe('truncation', () => {
     const sharedProps = {
       style: { width: 200 },

src/components/combo_box/combo_box.tsx

@@ -18,7 +18,6 @@ import React, {
   RefCallback,
 } from 'react';
 import classNames from 'classnames';
-import AutosizeInput from 'react-input-autosize';
 
 import { findPopoverPosition, htmlIdGenerator, keys } from '../../services';
 import { getElementZIndex } from '../../services/popover';
@@ -256,12 +255,6 @@ export class EuiComboBox<T> extends Component<
       });
     }
   };
-  autoSizeInputRefInstance: RefInstance<AutosizeInput & HTMLDivElement> = null;
-  autoSizeInputRefCallback: RefCallback<AutosizeInput & HTMLDivElement> = (
-    ref
-  ) => {
-    this.autoSizeInputRefInstance = ref;
-  };
 
   searchInputRefInstance: RefInstance<HTMLInputElement> = null;
   searchInputRefCallback: RefCallback<HTMLInputElement> = (ref) => {
@@ -787,13 +780,6 @@ export class EuiComboBox<T> extends Component<
 
   componentDidMount() {
     this._isMounted = true;
-
-    // TODO: This will need to be called once the actual stylesheet loads.
-    setTimeout(() => {
-      if (this.autoSizeInputRefInstance) {
-        this.autoSizeInputRefInstance.copyInputStyles();
-      }
-    }, 100);
   }
 
   static getDerivedStateFromProps<T>(
@@ -1044,7 +1030,6 @@ export class EuiComboBox<T> extends Component<
         ref={this.comboBoxRefCallback}
       >
         <EuiComboBoxInput
-          autoSizeInputRef={this.autoSizeInputRefCallback}
           compressed={compressed}
           focusedOptionId={
             this.hasActiveOption()