Chore: Mobile: Refactor markdown toolbar (#9708)

.eslintignore

@@ -485,10 +485,15 @@ packages/app-mobile/components/NoteEditor/MarkdownToolbar/ToggleSpaceButton.js
 packages/app-mobile/components/NoteEditor/MarkdownToolbar/Toolbar.js
 packages/app-mobile/components/NoteEditor/MarkdownToolbar/ToolbarButton.js
 packages/app-mobile/components/NoteEditor/MarkdownToolbar/ToolbarOverflowRows.js
+packages/app-mobile/components/NoteEditor/MarkdownToolbar/buttons/useActionButtons.js
+packages/app-mobile/components/NoteEditor/MarkdownToolbar/buttons/useHeaderButtons.js
+packages/app-mobile/components/NoteEditor/MarkdownToolbar/buttons/useInlineFormattingButtons.js
+packages/app-mobile/components/NoteEditor/MarkdownToolbar/buttons/useListButtons.js
 packages/app-mobile/components/NoteEditor/MarkdownToolbar/types.js
 packages/app-mobile/components/NoteEditor/NoteEditor.test.js
 packages/app-mobile/components/NoteEditor/NoteEditor.js
 packages/app-mobile/components/NoteEditor/SearchPanel.js
+packages/app-mobile/components/NoteEditor/hooks/useKeyboardVisible.js
 packages/app-mobile/components/NoteEditor/types.js
 packages/app-mobile/components/NoteList.js
 packages/app-mobile/components/ProfileSwitcher/ProfileEditor.js

.gitignore

@@ -465,10 +465,15 @@ packages/app-mobile/components/NoteEditor/MarkdownToolbar/ToggleSpaceButton.js
 packages/app-mobile/components/NoteEditor/MarkdownToolbar/Toolbar.js
 packages/app-mobile/components/NoteEditor/MarkdownToolbar/ToolbarButton.js
 packages/app-mobile/components/NoteEditor/MarkdownToolbar/ToolbarOverflowRows.js
+packages/app-mobile/components/NoteEditor/MarkdownToolbar/buttons/useActionButtons.js
+packages/app-mobile/components/NoteEditor/MarkdownToolbar/buttons/useHeaderButtons.js
+packages/app-mobile/components/NoteEditor/MarkdownToolbar/buttons/useInlineFormattingButtons.js
+packages/app-mobile/components/NoteEditor/MarkdownToolbar/buttons/useListButtons.js
 packages/app-mobile/components/NoteEditor/MarkdownToolbar/types.js
 packages/app-mobile/components/NoteEditor/NoteEditor.test.js
 packages/app-mobile/components/NoteEditor/NoteEditor.js
 packages/app-mobile/components/NoteEditor/SearchPanel.js
+packages/app-mobile/components/NoteEditor/hooks/useKeyboardVisible.js
 packages/app-mobile/components/NoteEditor/types.js
 packages/app-mobile/components/NoteList.js
 packages/app-mobile/components/ProfileSwitcher/ProfileEditor.js

packages/app-mobile/components/Icon.tsx

@@ -1,7 +1,11 @@
 
 import * as React from 'react';
-import { TextStyle } from 'react-native';
+import { TextStyle, Text } from 'react-native';
+
 const FontAwesomeIcon = require('react-native-vector-icons/FontAwesome5').default;
+const AntIcon = require('react-native-vector-icons/AntDesign').default;
+const MaterialIcon = require('react-native-vector-icons/MaterialIcons').default;
+
 
 interface Props {
 	name: string;
@@ -9,6 +13,8 @@ interface Props {
 
 	// If `null` is given, the content must be labeled elsewhere.
 	accessibilityLabel: string|null;
+
+	allowFontScaling?: boolean;
 }
 
 const Icon: React.FC<Props> = props => {
@@ -25,20 +31,42 @@ const Icon: React.FC<Props> = props => {
 	// to read the characters from the icon font (they don't make sense
 	// without the icon font applied).
 	const accessibilityHidden = props.accessibilityLabel === null;
+	const importantForAccessibility = accessibilityHidden ? 'no-hide-descendants' : 'yes';
 
+	const sharedProps = {
+		importantForAccessibility,
+		'aria-hidden': accessibilityHidden,
+		accessibilityLabel: props.accessibilityLabel,
+		style: props.style,
+		allowFontScaling: props.allowFontScaling,
+	};
+
+	if (namePrefix.match(/^fa[bsr]?$/)) {
 		return (
 			<FontAwesomeIcon
 				brand={namePrefix.startsWith('fab')}
 				solid={namePrefix.startsWith('fas')}
-			accessibilityLabel={props.accessibilityLabel}
-			aria-hidden={accessibilityHidden}
-			importantForAccessibility={
-				accessibilityHidden ? 'no-hide-descendants' : 'yes'
-			}
 				name={nameSuffix}
-			style={props.style}
+				{...sharedProps}
 			/>
 		);
+	} else if (namePrefix === 'ant') {
+		return <AntIcon name={nameSuffix} {...sharedProps}/>;
+	} else if (namePrefix === 'material') {
+		return <MaterialIcon name={nameSuffix} {...sharedProps}/>;
+	} else if (namePrefix === 'text') {
+		return (
+			<Text
+				style={props.style}
+				aria-hidden={accessibilityHidden}
+				importantForAccessibility={importantForAccessibility}
+			>
+				{nameSuffix}
+			</Text>
+		);
+	} else {
+		return <FontAwesomeIcon name='cog' {...sharedProps}/>;
+	}
 };
 
 export default Icon;

packages/app-mobile/components/NoteEditor/MarkdownToolbar/MarkdownToolbar.tsx

@@ -1,288 +1,45 @@
 // A toolbar for the markdown editor.
 
-const React = require('react');
+import * as React from 'react';
 import { Platform, StyleSheet } from 'react-native';
-import { useMemo, useState, useCallback } from 'react';
+import { useMemo } from 'react';
-
-// See https://oblador.github.io/react-native-vector-icons/ for a list of
-// available icons.
-const AntIcon = require('react-native-vector-icons/AntDesign').default;
-const FontAwesomeIcon = require('react-native-vector-icons/FontAwesome5').default;
-const MaterialIcon = require('react-native-vector-icons/MaterialIcons').default;
 
 import { _ } from '@joplin/lib/locale';
-import time from '@joplin/lib/time';
+import { MarkdownToolbarProps, StyleSheetData } from './types';
-import { useEffect } from 'react';
-import { Keyboard, ViewStyle } from 'react-native';
-import { EditorControl, EditorSettings } from '../types';
-import { ButtonSpec, StyleSheetData } from './types';
 import Toolbar from './Toolbar';
 import { buttonSize } from './ToolbarButton';
 import { Theme } from '@joplin/lib/themes/type';
 import ToggleSpaceButton from './ToggleSpaceButton';
-import { SearchState } from '@joplin/editor/types';
+import useHeaderButtons from './buttons/useHeaderButtons';
-import SelectionFormatting from '@joplin/editor/SelectionFormatting';
+import useInlineFormattingButtons from './buttons/useInlineFormattingButtons';
+import useActionButtons from './buttons/useActionButtons';
+import useListButtons from './buttons/useListButtons';
+import useKeyboardVisible from '../hooks/useKeyboardVisible';
 
-type OnAttachCallback = ()=> void;
 
-interface MarkdownToolbarProps {
+const MarkdownToolbar: React.FC<MarkdownToolbarProps> = (props: MarkdownToolbarProps) => {
-	editorControl: EditorControl;
-	selectionState: SelectionFormatting;
-	searchState: SearchState;
-	editorSettings: EditorSettings;
-	onAttach: OnAttachCallback;
-	style?: ViewStyle;
-	readOnly: boolean;
-}
-
-const MarkdownToolbar = (props: MarkdownToolbarProps) => {
 	const themeData = props.editorSettings.themeData;
 	const styles = useStyles(props.style, themeData);
-	const selState = props.selectionState;
-	const editorControl = props.editorControl;
-	const readOnly = props.readOnly;
 
-	const headerButtons: ButtonSpec[] = [];
+	const { keyboardVisible, hasSoftwareKeyboard } = useKeyboardVisible();
-	for (let level = 1; level <= 5; level++) {
+	const buttonProps = {
-		const active = selState.headerLevel === level;
+		...props,
+		iconStyle: styles.text,
+		keyboardVisible,
+		hasSoftwareKeyboard,
+	};
+	const headerButtons = useHeaderButtons(buttonProps);
+	const inlineFormattingBtns = useInlineFormattingButtons(buttonProps);
+	const actionButtons = useActionButtons(buttonProps);
+	const listButtons = useListButtons(buttonProps);
 
-		headerButtons.push({
+	const styleData: StyleSheetData = useMemo(() => ({
-			icon: `H${level}`,
-			description: _('Header %d', level),
-			active,
-
-			// We only call addHeaderButton 5 times and in the same order, so
-			// the linter error is safe to ignore.
-			// eslint-disable-next-line @seiyab/react-hooks/rules-of-hooks
-			onPress: useCallback(() => {
-				editorControl.toggleHeaderLevel(level);
-			}, [editorControl, level]),
-
-			// Make it likely for the first three header buttons to show, less likely for
-			// the others.
-			priority: level < 3 ? 2 : 0,
-			disabled: readOnly,
-		});
-	}
-
-	const listButtons: ButtonSpec[] = [];
-	listButtons.push({
-		icon: (
-			<FontAwesomeIcon name="list-ul" style={styles.text}/>
-		),
-		description: _('Unordered list'),
-		active: selState.inUnorderedList,
-		onPress: editorControl.toggleUnorderedList,
-
-		priority: -2,
-		disabled: readOnly,
-	});
-
-	listButtons.push({
-		icon: (
-			<FontAwesomeIcon name="list-ol" style={styles.text}/>
-		),
-		description: _('Ordered list'),
-		active: selState.inOrderedList,
-		onPress: editorControl.toggleOrderedList,
-
-		priority: -2,
-		disabled: readOnly,
-	});
-
-	listButtons.push({
-		icon: (
-			<FontAwesomeIcon name="tasks" style={styles.text}/>
-		),
-		description: _('Task list'),
-		active: selState.inChecklist,
-		onPress: editorControl.toggleTaskList,
-
-		priority: -2,
-		disabled: readOnly,
-	});
-
-
-	listButtons.push({
-		icon: (
-			<AntIcon name="indent-left" style={styles.text}/>
-		),
-		description: _('Decrease indent level'),
-		onPress: editorControl.decreaseIndent,
-
-		priority: -1,
-		disabled: readOnly,
-	});
-
-	listButtons.push({
-		icon: (
-			<AntIcon name="indent-right" style={styles.text}/>
-		),
-		description: _('Increase indent level'),
-		onPress: editorControl.increaseIndent,
-
-		priority: -1,
-		disabled: readOnly,
-	});
-
-
-	// Inline formatting
-	const inlineFormattingBtns: ButtonSpec[] = [];
-	inlineFormattingBtns.push({
-		icon: (
-			<FontAwesomeIcon name="bold" style={styles.text}/>
-		),
-		description: _('Bold'),
-		active: selState.bolded,
-		onPress: editorControl.toggleBolded,
-
-		priority: 3,
-		disabled: readOnly,
-	});
-
-	inlineFormattingBtns.push({
-		icon: (
-			<FontAwesomeIcon name="italic" style={styles.text}/>
-		),
-		description: _('Italic'),
-		active: selState.italicized,
-		onPress: editorControl.toggleItalicized,
-
-		priority: 2,
-		disabled: readOnly,
-	});
-
-	inlineFormattingBtns.push({
-		icon: '{;}',
-		description: _('Code'),
-		active: selState.inCode,
-		onPress: editorControl.toggleCode,
-
-		priority: 2,
-		disabled: readOnly,
-	});
-
-	if (props.editorSettings.katexEnabled) {
-		inlineFormattingBtns.push({
-			icon: '∑',
-			description: _('KaTeX'),
-			active: selState.inMath,
-			onPress: editorControl.toggleMath,
-
-			priority: 1,
-			disabled: readOnly,
-		});
-	}
-
-	inlineFormattingBtns.push({
-		icon: (
-			<FontAwesomeIcon name="link" style={styles.text}/>
-		),
-		description: _('Link'),
-		active: selState.inLink,
-		onPress: editorControl.showLinkDialog,
-
-		priority: -3,
-		disabled: readOnly,
-	});
-
-
-	// Actions
-	const actionButtons: ButtonSpec[] = [];
-	actionButtons.push({
-		icon: (
-			<FontAwesomeIcon name="calendar-plus" style={styles.text}/>
-		),
-		description: _('Insert time'),
-		onPress: useCallback(() => {
-			editorControl.insertText(time.formatDateToLocal(new Date()));
-		}, [editorControl]),
-		disabled: readOnly,
-	});
-
-	const onDismissKeyboard = useCallback(() => {
-		// Keyboard.dismiss() doesn't dismiss the keyboard if it's editing the WebView.
-		Keyboard.dismiss();
-
-		// As such, dismiss the keyboard by sending a message to the View.
-		editorControl.hideKeyboard();
-	}, [editorControl]);
-
-	actionButtons.push({
-		icon: (
-			<MaterialIcon name="attachment" style={styles.text}/>
-		),
-		description: _('Attach'),
-		onPress: useCallback(() => {
-			onDismissKeyboard();
-			props.onAttach();
-		}, [props.onAttach, onDismissKeyboard]),
-		disabled: readOnly,
-	});
-
-	actionButtons.push({
-		icon: (
-			<MaterialIcon name="search" style={styles.text}/>
-		),
-		description: (
-			props.searchState.dialogVisible ? _('Close') : _('Find and replace')
-		),
-		active: props.searchState.dialogVisible,
-		onPress: useCallback(() => {
-			if (props.searchState.dialogVisible) {
-				editorControl.searchControl.hideSearch();
-			} else {
-				editorControl.searchControl.showSearch();
-			}
-		}, [editorControl, props.searchState.dialogVisible]),
-
-		priority: -3,
-		disabled: readOnly,
-	});
-
-	const [keyboardVisible, setKeyboardVisible] = useState(false);
-	const [hasSoftwareKeyboard, setHasSoftwareKeyboard] = useState(false);
-	useEffect(() => {
-		const showListener = Keyboard.addListener('keyboardDidShow', () => {
-			setKeyboardVisible(true);
-			setHasSoftwareKeyboard(true);
-		});
-		const hideListener = Keyboard.addListener('keyboardDidHide', () => {
-			setKeyboardVisible(false);
-		});
-
-		return (() => {
-			showListener.remove();
-			hideListener.remove();
-		});
-	});
-
-	actionButtons.push({
-		icon: (
-			<MaterialIcon name="keyboard-hide" style={styles.text}/>
-		),
-		description: _('Hide keyboard'),
-		disabled: !keyboardVisible,
-		visible: hasSoftwareKeyboard && Platform.OS === 'ios',
-		onPress: onDismissKeyboard,
-
-		priority: -3,
-	});
-
-	const styleData: StyleSheetData = {
 		styles: styles,
 		themeId: props.editorSettings.themeId,
-	};
+	}), [styles, props.editorSettings.themeId]);
 
-	return (
+	const toolbarButtons = useMemo(() => {
-		<ToggleSpaceButton
+		const buttons = [
-			spaceApplicable={ Platform.OS === 'ios' && keyboardVisible }
-			themeId={props.editorSettings.themeId}
-			style={styles.container}
-		>
-			<Toolbar
-				styleSheet={styleData}
-				buttons={[
 			{
 				title: _('Formatting'),
 				items: inlineFormattingBtns,
@@ -299,7 +56,20 @@ const MarkdownToolbar = (props: MarkdownToolbarProps) => {
 				title: _('Actions'),
 				items: actionButtons,
 			},
-				]}
+		];
+
+		return buttons;
+	}, [headerButtons, inlineFormattingBtns, listButtons, actionButtons]);
+
+	return (
+		<ToggleSpaceButton
+			spaceApplicable={ Platform.OS === 'ios' && keyboardVisible }
+			themeId={props.editorSettings.themeId}
+			style={styles.container}
+		>
+			<Toolbar
+				styleSheet={styleData}
+				buttons={toolbarButtons}
 			/>
 		</ToggleSpaceButton>
 	);

packages/app-mobile/components/NoteEditor/MarkdownToolbar/ToggleOverflowButton.tsx

@@ -1,9 +1,8 @@
-const React = require('react');
+import * as React from 'react';
 
 import { _ } from '@joplin/lib/locale';
 import ToolbarButton from './ToolbarButton';
 import { ButtonSpec, StyleSheetData } from './types';
-const MaterialIcon = require('react-native-vector-icons/MaterialIcons').default;
 
 type OnToggleOverflowCallback = ()=> void;
 interface ToggleOverflowButtonProps {
@@ -13,11 +12,9 @@ interface ToggleOverflowButtonProps {
 }
 
 // Button that shows/hides the overflow menu.
-const ToggleOverflowButton = (props: ToggleOverflowButtonProps) => {
+const ToggleOverflowButton: React.FC<ToggleOverflowButtonProps> = (props: ToggleOverflowButtonProps) => {
 	const spec: ButtonSpec = {
-		icon: (
+		icon: 'material more-horiz',
-			<MaterialIcon name="more-horiz" style={props.styleSheet.styles.text}/>
-		),
 		description:
 			props.overflowVisible ? _('Hide more actions') : _('Show more actions'),
 		active: props.overflowVisible,

packages/app-mobile/components/NoteEditor/MarkdownToolbar/Toolbar.tsx

@@ -1,4 +1,4 @@
-const React = require('react');
+import * as React from 'react';
 
 import { ReactElement, useCallback, useMemo, useState } from 'react';
 import { LayoutChangeEvent, ScrollView, View, ViewStyle } from 'react-native';
@@ -14,7 +14,7 @@ interface ToolbarProps {
 }
 
 // Displays a list of buttons with an overflow menu.
-const Toolbar = (props: ToolbarProps) => {
+const Toolbar: React.FC<ToolbarProps> = (props: ToolbarProps) => {
 	const [overflowButtonsVisible, setOverflowPopupVisible] = useState(false);
 	const [maxButtonsEachSide, setMaxButtonsEachSide] = useState(0);
 

packages/app-mobile/components/NoteEditor/MarkdownToolbar/ToolbarButton.tsx

@@ -1,8 +1,9 @@
-import React = require('react');
+import * as React from 'react';
-import { useCallback } from 'react';
+import { useCallback, useMemo } from 'react';
-import { Text, TextStyle } from 'react-native';
+import { TextStyle, StyleSheet } from 'react-native';
 import { ButtonSpec, StyleSheetData } from './types';
 import CustomButton from '../../CustomButton';
+import Icon from '../../Icon';
 
 export const buttonSize = 54;
 
@@ -13,28 +14,39 @@ interface ToolbarButtonProps {
 	onActionComplete?: ()=> void;
 }
 
+const useStyles = (baseStyleSheet: any, baseButtonStyle: any, buttonSpec: ButtonSpec, visible: boolean, disabled: boolean) => {
+	return useMemo(() => {
+		const activatedStyle = buttonSpec.active ? baseStyleSheet.buttonActive : {};
+		const disabledStyle = disabled ? baseStyleSheet.buttonDisabled : {};
+
+		const activatedTextStyle = buttonSpec.active ? baseStyleSheet.buttonActiveContent : {};
+		const disabledTextStyle = disabled ? baseStyleSheet.buttonDisabledContent : {};
+
+		return StyleSheet.create({
+			iconStyle: {
+				...activatedTextStyle,
+				...disabledTextStyle,
+				...baseStyleSheet.text,
+			},
+			buttonStyle: {
+				...baseStyleSheet.button,
+				...activatedStyle,
+				...disabledStyle,
+				...baseButtonStyle,
+				...(!visible ? { opacity: 0 } : null),
+			},
+		});
+	}, [
+		baseStyleSheet.button, baseStyleSheet.text, baseButtonStyle, baseStyleSheet.buttonActive,
+		baseStyleSheet.buttonDisabled, baseStyleSheet.buttonActiveContent, baseStyleSheet.buttonDisabledContent,
+		buttonSpec.active, visible, disabled,
+	]);
+};
+
 const ToolbarButton = ({ styleSheet, spec, onActionComplete, style }: ToolbarButtonProps) => {
 	const visible = spec.visible ?? true;
 	const disabled = (spec.disabled ?? false) && visible;
-	const styles = styleSheet.styles;
+	const styles = useStyles(styleSheet.styles, style, spec, visible, disabled);
-
-	// Additional styles if activated
-	const activatedStyle = spec.active ? styles.buttonActive : {};
-	const activatedTextStyle = spec.active ? styles.buttonActiveContent : {};
-	const disabledStyle = disabled ? styles.buttonDisabled : {};
-	const disabledTextStyle = disabled ? styles.buttonDisabledContent : {};
-
-	let content;
-
-	if (typeof spec.icon === 'string') {
-		content = (
-			<Text style={{ ...styles.text, ...activatedTextStyle, ...disabledTextStyle }}>
-				{spec.icon}
-			</Text>
-		);
-	} else {
-		content = spec.icon;
-	}
 
 	const sourceOnPress = spec.onPress;
 	const onPress = useCallback(() => {
@@ -46,17 +58,14 @@ const ToolbarButton = ({ styleSheet, spec, onActionComplete, style }: ToolbarBut
 
 	return (
 		<CustomButton
-			style={{
+			style={styles.buttonStyle}
-				...styles.button, ...activatedStyle, ...disabledStyle, ...style,
-				...(!visible ? { opacity: 0 } : null),
-			}}
 			themeId={styleSheet.themeId}
 			onPress={onPress}
 			description={ spec.description }
 			accessibilityRole="button"
 			disabled={ disabled }
 		>
-			{ content }
+			<Icon name={spec.icon} style={styles.iconStyle} accessibilityLabel={null}/>
 		</CustomButton>
 	);
 };

packages/app-mobile/components/NoteEditor/MarkdownToolbar/ToolbarOverflowRows.tsx

@@ -1,3 +1,5 @@
+import * as React from 'react';
+
 import { _ } from '@joplin/lib/locale';
 import { ReactElement, useCallback, useState } from 'react';
 import { LayoutChangeEvent, ScrollView, View } from 'react-native';
@@ -5,8 +7,6 @@ import ToggleOverflowButton from './ToggleOverflowButton';
 import ToolbarButton, { buttonSize } from './ToolbarButton';
 import { ButtonGroup, ButtonSpec, StyleSheetData } from './types';
 
-const React = require('react');
-
 type OnToggleOverflowCallback = ()=> void;
 interface OverflowPopupProps {
 	buttonGroups: ButtonGroup[];
@@ -17,10 +17,13 @@ interface OverflowPopupProps {
 	onToggleOverflow: OnToggleOverflowCallback;
 }
 
+// Specification for a button that acts as padding.
+const paddingButtonSpec = { visible: false, icon: '', onPress: ()=>{}, description: '' };
+
 // Contains buttons that overflow the available space.
 // Displays all buttons in [props.buttonGroups] if [props.visible].
 // Otherwise, displays nothing.
-const ToolbarOverflowRows = (props: OverflowPopupProps) => {
+const ToolbarOverflowRows: React.FC<OverflowPopupProps> = (props: OverflowPopupProps) => {
 	const overflowRows: ReactElement[] = [];
 
 	let key = 0;
@@ -47,7 +50,7 @@ const ToolbarOverflowRows = (props: OverflowPopupProps) => {
 			// Show the "hide overflow" button if in the center of the last row
 			const isLastRow = i === props.buttonGroups.length - 1;
 			const isCenterOfRow = j + 1 === Math.floor(group.items.length / 2);
-			if (isLastRow && isCenterOfRow) {
+			if (isLastRow && (isCenterOfRow || group.items.length === 1)) {
 				row.push(
 					<ToggleOverflowButton
 						key={(++key).toString()}
@@ -59,6 +62,17 @@ const ToolbarOverflowRows = (props: OverflowPopupProps) => {
 			}
 		}
 
+		// Pad to an odd number of items to ensure that buttons are centered properly
+		if (row.length % 2 === 0) {
+			row.push(
+				<ToolbarButton
+					key={`padding-${i}`}
+					styleSheet={props.styleSheet}
+					spec={paddingButtonSpec}
+				/>,
+			);
+		}
+
 		overflowRows.push(
 			<View
 				key={key.toString()}
@@ -87,7 +101,7 @@ const ToolbarOverflowRows = (props: OverflowPopupProps) => {
 	}, [setHasSpaceForCloseBtn, props.buttonGroups]);
 
 	const closeButtonSpec: ButtonSpec = {
-		icon: '⨉',
+		icon: 'text ⨉',
 		description: _('Close'),
 		onPress: props.onToggleOverflow,
 	};
@@ -112,6 +126,7 @@ const ToolbarOverflowRows = (props: OverflowPopupProps) => {
 				height: props.buttonGroups.length * buttonSize,
 				flexDirection: 'column',
 				flexGrow: 1,
+				display: !props.visible ? 'none' : 'flex',
 			}}
 			onLayout={onContainerLayout}
 		>

packages/app-mobile/components/NoteEditor/MarkdownToolbar/buttons/useActionButtons.ts

@@ -0,0 +1,83 @@
+import { useCallback, useMemo } from 'react';
+import { ButtonSpec } from '../types';
+import { _ } from '@joplin/lib/locale';
+import { ButtonRowProps } from '../types';
+import time from '@joplin/lib/time';
+import { Keyboard, Platform } from 'react-native';
+
+export interface ActionButtonRowProps extends ButtonRowProps {
+	keyboardVisible: boolean;
+	hasSoftwareKeyboard: boolean;
+}
+
+const useActionButtons = (props: ActionButtonRowProps) => {
+	const onDismissKeyboard = useCallback(() => {
+		// Keyboard.dismiss() doesn't dismiss the keyboard if it's editing the WebView.
+		Keyboard.dismiss();
+
+		// As such, dismiss the keyboard by sending a message to the View.
+		props.editorControl.hideKeyboard();
+	}, [props.editorControl]);
+
+	const onSearch = useCallback(() => {
+		if (props.searchState.dialogVisible) {
+			props.editorControl.searchControl.hideSearch();
+		} else {
+			props.editorControl.searchControl.showSearch();
+		}
+	}, [props.editorControl, props.searchState.dialogVisible]);
+
+	const onAttach = useCallback(() => {
+		onDismissKeyboard();
+		props.onAttach();
+	}, [props.onAttach, onDismissKeyboard]);
+
+	return useMemo(() => {
+		const actionButtons: ButtonSpec[] = [];
+		actionButtons.push({
+			icon: 'fa calendar-plus',
+			description: _('Insert time'),
+			onPress: () => {
+				props.editorControl.insertText(time.formatDateToLocal(new Date()));
+			},
+			disabled: props.readOnly,
+		});
+
+		actionButtons.push({
+			icon: 'material attachment',
+			description: _('Attach'),
+			onPress: onAttach,
+			disabled: props.readOnly,
+		});
+
+		actionButtons.push({
+			icon: 'material search',
+			description: (
+				props.searchState.dialogVisible ? _('Close') : _('Find and replace')
+			),
+			active: props.searchState.dialogVisible,
+			onPress: onSearch,
+
+			priority: -3,
+			disabled: props.readOnly,
+		});
+
+		actionButtons.push({
+			icon: 'material keyboard-hide',
+			description: _('Hide keyboard'),
+			disabled: !props.keyboardVisible,
+			visible: props.hasSoftwareKeyboard && Platform.OS === 'ios',
+			onPress: onDismissKeyboard,
+
+			priority: -3,
+		});
+
+		return actionButtons;
+	}, [
+		props.editorControl, props.keyboardVisible, props.hasSoftwareKeyboard,
+		props.readOnly, props.searchState.dialogVisible,
+		onAttach, onDismissKeyboard, onSearch,
+	]);
+};
+
+export default useActionButtons;

packages/app-mobile/components/NoteEditor/MarkdownToolbar/buttons/useHeaderButtons.ts

@@ -0,0 +1,34 @@
+import { useMemo } from 'react';
+import { ButtonSpec } from '../types';
+import { _ } from '@joplin/lib/locale';
+import { ButtonRowProps } from '../types';
+
+const useHeaderButtons = ({ selectionState, editorControl, readOnly }: ButtonRowProps) => {
+	return useMemo(() => {
+		const headerButtons: ButtonSpec[] = [];
+		for (let level = 1; level <= 5; level++) {
+			const active = selectionState.headerLevel === level;
+
+			headerButtons.push({
+				icon: `text H${level}`,
+				description: _('Header %d', level),
+				active,
+
+				// We only call addHeaderButton 5 times and in the same order, so
+				// the linter error is safe to ignore.
+				// eslint-disable-next-line @seiyab/react-hooks/rules-of-hooks
+				onPress: () => {
+					editorControl.toggleHeaderLevel(level);
+				},
+
+				// Make it likely for the first three header buttons to show, less likely for
+				// the others.
+				priority: level < 3 ? 2 : 0,
+				disabled: readOnly,
+			});
+		}
+		return headerButtons;
+	}, [selectionState, editorControl, readOnly]);
+};
+
+export default useHeaderButtons;

packages/app-mobile/components/NoteEditor/MarkdownToolbar/buttons/useInlineFormattingButtons.ts

@@ -0,0 +1,67 @@
+import { useMemo } from 'react';
+import { ButtonSpec } from '../types';
+import { _ } from '@joplin/lib/locale';
+import { ButtonRowProps } from '../types';
+
+
+const useInlineFormattingButtons = ({ selectionState, editorControl, readOnly, editorSettings }: ButtonRowProps) => {
+	const { bolded, italicized, inCode, inMath, inLink } = selectionState;
+
+	return useMemo(() => {
+		const inlineFormattingBtns: ButtonSpec[] = [];
+		inlineFormattingBtns.push({
+			icon: 'fa bold',
+			description: _('Bold'),
+			active: bolded,
+			onPress: editorControl.toggleBolded,
+
+			priority: 3,
+			disabled: readOnly,
+		});
+
+		inlineFormattingBtns.push({
+			icon: 'fa italic',
+			description: _('Italic'),
+			active: italicized,
+			onPress: editorControl.toggleItalicized,
+
+			priority: 2,
+			disabled: readOnly,
+		});
+
+		inlineFormattingBtns.push({
+			icon: 'text {;}',
+			description: _('Code'),
+			active: inCode,
+			onPress: editorControl.toggleCode,
+
+			priority: 2,
+			disabled: readOnly,
+		});
+
+		if (editorSettings.katexEnabled) {
+			inlineFormattingBtns.push({
+				icon: 'text ∑',
+				description: _('KaTeX'),
+				active: inMath,
+				onPress: editorControl.toggleMath,
+
+				priority: 1,
+				disabled: readOnly,
+			});
+		}
+
+		inlineFormattingBtns.push({
+			icon: 'fa link',
+			description: _('Link'),
+			active: inLink,
+			onPress: editorControl.showLinkDialog,
+
+			priority: -3,
+			disabled: readOnly,
+		});
+		return inlineFormattingBtns;
+	}, [readOnly, editorControl, editorSettings.katexEnabled, inLink, inMath, inCode, italicized, bolded]);
+};
+
+export default useInlineFormattingButtons;

packages/app-mobile/components/NoteEditor/MarkdownToolbar/buttons/useListButtons.ts

@@ -0,0 +1,63 @@
+import { useMemo } from 'react';
+import { ButtonSpec } from '../types';
+import { _ } from '@joplin/lib/locale';
+import { ButtonRowProps } from '../types';
+
+const useListButtons = ({ selectionState, editorControl, readOnly }: ButtonRowProps) => {
+	return useMemo(() => {
+		const listButtons: ButtonSpec[] = [];
+
+		listButtons.push({
+			icon: 'fa list-ul',
+			description: _('Unordered list'),
+			active: selectionState.inUnorderedList,
+			onPress: editorControl.toggleUnorderedList,
+
+			priority: -2,
+			disabled: readOnly,
+		});
+
+		listButtons.push({
+			icon: 'fa list-ol',
+			description: _('Ordered list'),
+			active: selectionState.inOrderedList,
+			onPress: editorControl.toggleOrderedList,
+
+			priority: -2,
+			disabled: readOnly,
+		});
+
+		listButtons.push({
+			icon: 'fa tasks',
+			description: _('Task list'),
+			active: selectionState.inChecklist,
+			onPress: editorControl.toggleTaskList,
+
+			priority: -2,
+			disabled: readOnly,
+		});
+
+
+		listButtons.push({
+			icon: 'ant indent-left',
+			description: _('Decrease indent level'),
+			onPress: editorControl.decreaseIndent,
+
+			priority: -1,
+			disabled: readOnly,
+		});
+
+		listButtons.push({
+			icon: 'ant indent-right',
+			description: _('Increase indent level'),
+			onPress: editorControl.increaseIndent,
+
+			priority: -1,
+			disabled: readOnly,
+		});
+
+		return listButtons;
+	}, [readOnly, editorControl, selectionState]);
+};
+
+export default useListButtons;

packages/app-mobile/components/NoteEditor/MarkdownToolbar/types.ts

@@ -1,11 +1,14 @@
 
-import { ReactElement } from 'react';
+import { TextStyle, ViewStyle } from 'react-native';
+import { EditorControl, EditorSettings } from '../types';
+import SelectionFormatting from '@joplin/editor/SelectionFormatting';
+import { SearchState } from '@joplin/editor/types';
 
 export type OnPressListener = ()=> void;
 
 export interface ButtonSpec {
-	// Either text that will be shown in place of an icon or a component.
+	// Name of an icon, as accepted by components/Icon.tsx
-	icon: string | ReactElement;
+	icon: string;
 
 	// Tooltip/accessibility label
 	description: string;
@@ -23,7 +26,6 @@ export interface ButtonSpec {
 	disabled?: boolean;
 	visible?: boolean;
 }
-
 export interface ButtonGroup {
 	title: string;
 	items: ButtonSpec[];
@@ -33,3 +35,18 @@ export interface StyleSheetData {
 	themeId: number;
 	styles: any;
 }
+
+type OnAttachCallback = ()=> void;
+export interface MarkdownToolbarProps {
+	editorControl: EditorControl;
+	selectionState: SelectionFormatting;
+	searchState: SearchState;
+	editorSettings: EditorSettings;
+	onAttach: OnAttachCallback;
+	style?: ViewStyle;
+	readOnly: boolean;
+}
+
+export interface ButtonRowProps extends MarkdownToolbarProps {
+	iconStyle: TextStyle;
+}

packages/app-mobile/components/NoteEditor/hooks/useKeyboardVisible.ts

@@ -0,0 +1,27 @@
+import { useEffect, useMemo, useState } from 'react';
+import { Keyboard } from 'react-native';
+
+const useKeyboardVisible = () => {
+	const [keyboardVisible, setKeyboardVisible] = useState(false);
+	const [hasSoftwareKeyboard, setHasSoftwareKeyboard] = useState(false);
+	useEffect(() => {
+		const showListener = Keyboard.addListener('keyboardDidShow', () => {
+			setKeyboardVisible(true);
+			setHasSoftwareKeyboard(true);
+		});
+		const hideListener = Keyboard.addListener('keyboardDidHide', () => {
+			setKeyboardVisible(false);
+		});
+
+		return (() => {
+			showListener.remove();
+			hideListener.remove();
+		});
+	});
+
+	return useMemo(() => {
+		return { keyboardVisible, hasSoftwareKeyboard };
+	}, [keyboardVisible, hasSoftwareKeyboard]);
+};
+
+export default useKeyboardVisible;