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[英]How to create different environments to code in VS Code (e.g. :by language). [Settings Profiles]
[英]React autocomplete in a textarea like in an IDE (e.g. VS Code, Atom)
我嘗試編寫一個自動完成功能,如 React 中的 gif。 因此,在編寫文本時會出現建議。
但是,到目前為止我能找到的所有軟件包都有效
a) 僅在輸入/文本區域的開頭(例如react-autosuggest )
b) 或需要一個觸發字符(如 @ 或 #)來打開(例如react-textarea-autocomplete )
我是否錯過了一些 React 限制? 任何提示/包?
我實際上在需要 textarea 實現方面遇到了同樣的問題,但我可以幫助自動完成觸發行為。
我們有一個類似於{{person.name}}
的模板變量的實現,它被解析為任何實際值。
關於僅在第一個單詞上觸發的自動完成,您可以通過對所需功能進行一些修改來解決這個問題。
例如我需要的功能看起來像這樣。 (不是一個完整的工作示例,而是所有重要的部分)
const templateVars = Object.values(TemplateVarMap);
const variables = templateVars.map((templateVar) => {
return {
name: templateVar,
};
});
//This func, onChange, and onSuggestionSelected/Highlight are the important
//parts. We essentially grab the full input string, then slice down to our
//autocomplete token and do the same for the search so it filters as you type
const getSuggestions = (value) => {
const sliceIndex = value
.trim()
.toLowerCase()
.lastIndexOf('{{'); //activate autocomplete token
const inputValue = value
.trim()
.toLowerCase()
.slice(sliceIndex + 2); //+2 to skip over the {{
const inputLength = inputValue.length;
//show every template variable option once '{{' is typed, then filter as
//they continue to type
return inputLength === 0
? variables
: variables.filter(
(variable) => variable.name.toLowerCase().slice(0, inputValue.length) === inputValue
);
};
const getSuggestionValue = (suggestion) => suggestion.name;
const renderSuggestion = (suggestion) => <div>{suggestion.name}</div>;
onSuggestionsFetchRequested = ({ value }) => {
this.setState({
suggestions: getSuggestions(value),
});
};
onSuggestionsClearRequested = () => {
this.setState({
suggestions: [],
});
};
onChange = (event, { newValue }) => {
//onChange fires on highlight / selection and tries to wipe
//the entire input to the suggested variable, so if our value
//is exactly a template variable, don't wipe it
if (templateVars.includes(newValue)) {
return;
}
this.setState({
value: newValue,
});
};
//These both need to do similar things because one is a click selection
//and the other is selection using the arrow keys + enter, we are essentially
//manually going through the input and only putting the variable into the
//string instead of replacing it outright.
onSuggestionHighlighted = ({ suggestion }) => {
if (!suggestion) {
return;
}
const { value } = this.state;
const sliceIndex = value.lastIndexOf('{{') + 2;
const currentVal = value.slice(0, sliceIndex);
const newValue = currentVal.concat(suggestion.name) + '}}';
this.setState({ value: newValue });
};
onSuggestionSelected = (event, { suggestionValue }) => {
const { value } = this.state;
const sliceIndex = value.lastIndexOf('{{') + 2;
const currentVal = value.slice(0, sliceIndex);
const newValue = currentVal.concat(suggestionValue) + '}}';
this.setState({ value: newValue });
};
const inputProps = {
value: this.state.value,
onChange: this.onChange,
};
render() {
return (
<Autosuggest
suggestions={this.state.suggestions}
onSuggestionSelected={this.onSubjectSuggestionSelected}
onSuggestionHighlighted={this.onSubjectSuggestionHighlighted}
onSuggestionsFetchRequested={this.onSuggestionsFetchRequested}
onSuggestionsClearRequested={this.onSuggestionsClearRequested}
getSuggestionValue={getSuggestionValue}
renderSuggestion={renderSuggestion}
inputProps={inputProps}
/>
)
}
這讓我可以輸入類似This is some text with a {{
並彈出自動完成功能,選擇一個選項后,它應該轉到This is some text with a {{person.name}}
。
這里唯一的問題是它要求輸入中的最后兩個字符是{{
(或任何您的標記)才能出現自動完成框。 我仍然在玩光標移動並以不同的方式切割字符串,所以如果我編輯一個不在末尾的模板,框仍然會彈出。
希望這會有所幫助。
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