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authorfragosti <francesco.agosti93@gmail.com>2018-12-14 04:45:38 +0800
committerfragosti <francesco.agosti93@gmail.com>2018-12-14 04:45:38 +0800
commit33c6e40b7026858be52f804c726b9a1ef41647d3 (patch)
treecd7b796c499f1e652cb2db550b67849eade6da1b /packages/instant/src
parent6e54514013702fa8ca9a6b69c04f4d2468cd8b66 (diff)
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simplify scaling input logic
Diffstat (limited to 'packages/instant/src')
-rw-r--r--packages/instant/src/components/scaling_amount_input.tsx1
-rw-r--r--packages/instant/src/components/scaling_input.tsx65
-rw-r--r--packages/instant/src/components/ui/input.tsx2
3 files changed, 18 insertions, 50 deletions
diff --git a/packages/instant/src/components/scaling_amount_input.tsx b/packages/instant/src/components/scaling_amount_input.tsx
index 86aca5a65..4feb0502d 100644
--- a/packages/instant/src/components/scaling_amount_input.tsx
+++ b/packages/instant/src/components/scaling_amount_input.tsx
@@ -58,6 +58,7 @@ export class ScalingAmountInput extends React.Component<ScalingAmountInputProps,
const { textLengthThreshold, fontColor, maxFontSizePx, onFontSizeChange } = this.props;
return (
<ScalingInput
+ type="number"
maxFontSizePx={maxFontSizePx}
textLengthThreshold={textLengthThreshold}
onFontSizeChange={onFontSizeChange}
diff --git a/packages/instant/src/components/scaling_input.tsx b/packages/instant/src/components/scaling_input.tsx
index 2c5567dc1..78c83115a 100644
--- a/packages/instant/src/components/scaling_input.tsx
+++ b/packages/instant/src/components/scaling_input.tsx
@@ -13,10 +13,10 @@ export enum ScalingInputPhase {
export interface ScalingSettings {
percentageToReduceFontSizePerCharacter: number;
- constantPxToIncreaseWidthPerCharacter: number;
}
export interface ScalingInputProps {
+ type?: string;
textLengthThreshold: number;
maxFontSizePx: number;
value: string;
@@ -31,21 +31,16 @@ export interface ScalingInputProps {
hasAutofocus: boolean;
}
-export interface ScalingInputState {
- inputWidthPxAtPhaseChange?: number;
-}
-
export interface ScalingInputSnapshot {
inputWidthPx: number;
}
// These are magic numbers that were determined experimentally.
const defaultScalingSettings: ScalingSettings = {
- percentageToReduceFontSizePerCharacter: 0.125,
- constantPxToIncreaseWidthPerCharacter: 4,
+ percentageToReduceFontSizePerCharacter: 0.1,
};
-export class ScalingInput extends React.Component<ScalingInputProps, ScalingInputState> {
+export class ScalingInput extends React.Component<ScalingInputProps> {
public static defaultProps = {
onChange: util.boundNoop,
onFontSizeChange: util.boundNoop,
@@ -54,9 +49,6 @@ export class ScalingInput extends React.Component<ScalingInputProps, ScalingInpu
isDisabled: false,
hasAutofocus: false,
};
- public state: ScalingInputState = {
- inputWidthPxAtPhaseChange: undefined,
- };
private readonly _inputRef = React.createRef<HTMLInputElement>();
public static getPhase(textLengthThreshold: number, value: string): ScalingInputPhase {
if (value.length <= textLengthThreshold) {
@@ -93,36 +85,15 @@ export class ScalingInput extends React.Component<ScalingInputProps, ScalingInpu
scalingSettings.percentageToReduceFontSizePerCharacter,
);
}
- public getSnapshotBeforeUpdate(): ScalingInputSnapshot {
- return {
- inputWidthPx: this._getInputWidthInPx(),
- };
- }
public componentDidMount(): void {
// Trigger an initial notification of the calculated fontSize.
const currentPhase = ScalingInput.getPhaseFromProps(this.props);
const currentFontSize = ScalingInput.calculateFontSizeFromProps(this.props, currentPhase);
this.props.onFontSizeChange(currentFontSize);
}
- public componentDidUpdate(
- prevProps: ScalingInputProps,
- prevState: ScalingInputState,
- snapshot: ScalingInputSnapshot,
- ): void {
+ public componentDidUpdate(prevProps: ScalingInputProps): void {
const prevPhase = ScalingInput.getPhaseFromProps(prevProps);
const curPhase = ScalingInput.getPhaseFromProps(this.props);
- // if we went from fixed to scaling, save the width from the transition
- if (prevPhase !== ScalingInputPhase.ScalingFontSize && curPhase === ScalingInputPhase.ScalingFontSize) {
- this.setState({
- inputWidthPxAtPhaseChange: snapshot.inputWidthPx,
- });
- }
- // if we went from scaling to fixed, revert back to scaling using `ch`
- if (prevPhase === ScalingInputPhase.ScalingFontSize && curPhase !== ScalingInputPhase.ScalingFontSize) {
- this.setState({
- inputWidthPxAtPhaseChange: undefined,
- });
- }
const prevFontSize = ScalingInput.calculateFontSizeFromProps(prevProps, prevPhase);
const curFontSize = ScalingInput.calculateFontSizeFromProps(this.props, curPhase);
// If font size has changed, notify.
@@ -131,14 +102,14 @@ export class ScalingInput extends React.Component<ScalingInputProps, ScalingInpu
}
}
public render(): React.ReactNode {
- const { hasAutofocus, isDisabled, fontColor, onChange, placeholder, value, maxLength } = this.props;
+ const { type, hasAutofocus, isDisabled, fontColor, onChange, placeholder, value, maxLength } = this.props;
const phase = ScalingInput.getPhaseFromProps(this.props);
return (
<Input
- type="number"
+ type={type}
ref={this._inputRef as any}
fontColor={fontColor}
- onChange={onChange}
+ onChange={this._handleChange}
value={value}
placeholder={placeholder}
fontSize={`${this._calculateFontSize(phase)}px`}
@@ -154,19 +125,7 @@ export class ScalingInput extends React.Component<ScalingInputProps, ScalingInpu
if (_.isEmpty(value)) {
return `${this.props.emptyInputWidthCh}ch`;
}
- switch (phase) {
- case ScalingInputPhase.FixedFontSize:
- return `${value.length}ch`;
- case ScalingInputPhase.ScalingFontSize:
- const { inputWidthPxAtPhaseChange } = this.state;
- if (!_.isUndefined(inputWidthPxAtPhaseChange)) {
- const charactersOverMax = value.length - textLengthThreshold;
- const scalingAmount = scalingSettings.constantPxToIncreaseWidthPerCharacter * charactersOverMax;
- const width = inputWidthPxAtPhaseChange + scalingAmount;
- return `${width}px`;
- }
- return `${textLengthThreshold}ch`;
- }
+ return `${value.length}ch`;
};
private readonly _calculateFontSize = (phase: ScalingInputPhase): number => {
return ScalingInput.calculateFontSizeFromProps(this.props, phase);
@@ -178,4 +137,12 @@ export class ScalingInput extends React.Component<ScalingInputProps, ScalingInpu
}
return ref.getBoundingClientRect().width;
};
+ private readonly _handleChange = (event: React.ChangeEvent<HTMLInputElement>): void => {
+ const value = event.target.value;
+ const { maxLength } = this.props;
+ if (!_.isUndefined(value) && !_.isUndefined(maxLength) && value.length > maxLength) {
+ return;
+ }
+ this.props.onChange(event);
+ };
}
diff --git a/packages/instant/src/components/ui/input.tsx b/packages/instant/src/components/ui/input.tsx
index 1e476bed3..697bfaf0f 100644
--- a/packages/instant/src/components/ui/input.tsx
+++ b/packages/instant/src/components/ui/input.tsx
@@ -2,7 +2,7 @@ import * as React from 'react';
import { ColorOption, styled } from '../../style/theme';
-export interface InputProps {
+export interface InputProps extends React.HTMLAttributes<HTMLInputElement> {
tabIndex?: number;
className?: string;
value?: string;