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fix: 🐛 修复富文本打字机

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修复富文本打字机文本中存在标签字符时,字符截取失败的问题
This commit is contained in:
ifengzp 2020-06-02 23:23:09 +08:00
parent 6532ab39c9
commit 10816bca15
1 changed files with 50 additions and 12 deletions
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62
assets/Scene/Typer/Typer.ts
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@ -48,26 +48,64 @@ export default class Typer extends cc.Component {
}
makeRichTextTyper(str: string) {
let charArr = str.replace(/<.+?\/?>/g, '').split('');
let tempStrArr = [str];
let delimiterCharList: any = ['✁', '✂', '✃', '✄', '✺', '✻', '✼', '❄', '❅', '❆', '❇', '❈', '❉', '❊'];
let regexp = /<.+?\/?>/g;
let matchArr = str.match(regexp);
let delimiterChar = delimiterCharList.find((item) => str.indexOf(item) == -1);
let replaceStr = str.replace(regexp, delimiterChar);
let tagInfoArr = [];
let temp = [];
let tagInfo: { endStr?; endtIdx?; startIdx?; startStr? } = {};
let num = 0;
for (let i = 0; i < replaceStr.length; i++) {
if (replaceStr[i] == delimiterChar) {
temp.push(i);
if (temp.length >= 2) {
tagInfo.endStr = matchArr[tagInfoArr.length * 2 + 1];
tagInfo.endtIdx = i - num;
tagInfoArr.push(tagInfo);
temp = [];
tagInfo = {};
} else {
tagInfo.startIdx = i - num;
tagInfo.startStr = matchArr[tagInfoArr.length * 2];
}
num += 1;
}
}
for (let i = charArr.length; i > 1; i--) {
let curStr = tempStrArr[charArr.length - i];
let lastIdx = curStr.lastIndexOf(charArr[i - 1]);
let prevStr = curStr.slice(0, lastIdx);
let nextStr = curStr.slice(lastIdx + 1, curStr.length);
tempStrArr.push(prevStr + nextStr);
let showCharArr = str.replace(regexp, '').split('');
let typerArr = [];
for (let i = 1; i <= showCharArr.length; i++) {
let temp = showCharArr.join('').slice(0, i);
let addLen = 0;
for (let j = 0; j < tagInfoArr.length; j++) {
let tagInfo = tagInfoArr[j];
let start = tagInfo.startIdx;
let end = tagInfo.endtIdx;
if (i > start && i <= end) {
temp = temp.slice(0, start + addLen) + tagInfo.startStr + temp.slice(start + addLen) + tagInfo.endStr;
addLen += tagInfo.startStr.length + tagInfo.endStr.length;
} else if (i > end) {
temp =
temp.slice(0, start + addLen) +
tagInfo.startStr +
temp.slice(start + addLen, end + addLen) +
tagInfo.endStr +
temp.slice(end + addLen);
addLen += tagInfo.startStr.length + tagInfo.endStr.length;
}
}
typerArr.unshift(temp);
}
this.typerTimer && clearInterval(this.typerTimer);
this.typerTimer = setInterval(() => {
if (tempStrArr.length) {
this.richText.string = tempStrArr.pop();
if (typerArr.length) {
this.richText.string = typerArr.pop();
} else {
this.typerTimer && clearInterval(this.typerTimer);
}
}, 50);
}
}