WXGame/Blacksmith/Assets/WX-WASM-SDK-V2/Runtime/wechat-default/unity-sdk/font/index.js

/* eslint-disable no-param-reassign */

import moduleHelper from '../module-helper';
import { formatJsonStr } from '../utils';
import fixCmapTable from './fix-cmap';
import readMetrics from './read-metrics';
import splitTTCToBufferOnlySC from './split-sc';

const { platform } = wx.getDeviceInfo();

const tempCacheObj = {};
let fontDataCache;
let getFontPromise;
let isReadFromCache = false;
const isIOS = platform === 'ios';
const isAndroid = platform === 'android';
const fontOptions = {
    CJK_Unified_Ideographs: {
        include: $CJK_Unified_Ideographs,
        unicodeRange: [0x4E00, 0x9FFF],
    },
    C0_Controls_and_Basic_Latin: {
        include: $C0_Controls_and_Basic_Latin,
        unicodeRange: [0x0000, 0x007F],
    },
    CJK_Symbols_and_Punctuation: {
        include: $CJK_Symbols_and_Punctuation,
        unicodeRange: [0x3000, 0x303F],
    },
    General_Punctuation: {
        include: $General_Punctuation,
        unicodeRange: [0x2000, 0x206F],
    },
    Enclosed_CJK_Letters_and_Months: {
        include: $Enclosed_CJK_Letters_and_Months,
        unicodeRange: [0x3200, 0x32FF],
    },
    Vertical_Forms: {
        include: $Vertical_Forms,
        unicodeRange: [0xFE10, 0xFE1F],
    },
    CJK_Compatibility_Forms: {
        include: $CJK_Compatibility_Forms,
        unicodeRange: [0xFE30, 0xFE4F],
    },
    Miscellaneous_Symbols: {
        include: $Miscellaneous_Symbols,
        unicodeRange: [0x2600, 0x26FF],
    },
    CJK_Compatibility: {
        include: $CJK_Compatibility,
        unicodeRange: [0x3300, 0x33FF],
    },
    Halfwidth_and_Fullwidth_Forms: {
        include: $Halfwidth_and_Fullwidth_Forms,
        unicodeRange: [0xFF00, 0xFFEF],
    },
    Dingbats: {
        include: $Dingbats,
        unicodeRange: [0x2700, 0x27BF],
    },
    Letterlike_Symbols: {
        include: $Letterlike_Symbols,
        unicodeRange: [0x2100, 0x214F],
    },
    Enclosed_Alphanumerics: {
        include: $Enclosed_Alphanumerics,
        unicodeRange: [0x2460, 0x24FF],
    },
    Number_Forms: {
        include: $Number_Forms,
        unicodeRange: [0x2150, 0x218F],
    },
    Currency_Symbols: {
        include: $Currency_Symbols,
        unicodeRange: [0x20A0, 0x20CF],
    },
    Arrows: {
        include: $Arrows,
        unicodeRange: [0x2190, 0x21FF],
    },
    Geometric_Shapes: {
        include: $Geometric_Shapes,
        unicodeRange: [0x25A0, 0x25FF],
    },
    Mathematical_Operators: {
        include: $Mathematical_Operators,
        unicodeRange: [0x2200, 0x22FF],
    },
    CustomUnicodeRange: $CustomUnicodeRange,
};
function handleGetFontData(config, forceFallback) {
    
    const canGetWxCommonFont = !!GameGlobal.manager?.font?.getCommonFont;
    
    if (!config && !canGetWxCommonFont) {
        return Promise.reject('invalid usage');
    }
    // eslint-disable-next-line @typescript-eslint/no-misused-promises
    if (!getFontPromise || forceFallback) {
        getFontPromise = new Promise((resolve, reject) => {
            
            if ((!canGetWxCommonFont || forceFallback) && !!config) {
                const xhr = new GameGlobal.unityNamespace.UnityLoader.UnityCache.XMLHttpRequest();
                xhr.open('GET', config.fallbackUrl, true); 
                xhr.responseType = 'arraybuffer'; 
                xhr.onload = () => {
                    
                    if ((xhr.status === 200 || xhr.status === 0) && xhr.response) {
                        const notoFontData = xhr.response; 
                        fontDataCache = notoFontData; 
                        isReadFromCache = xhr.isReadFromCache; 
                        resolve(); 
                    }
                };
                xhr.onerror = reject; 
                xhr.send(); 
                return;
            }
            let unicodeRange = []; 
            
            Object.keys(fontOptions).forEach((key) => {
                if (fontOptions[key].include) {
                    unicodeRange.push(fontOptions[key].unicodeRange); 
                }
            });
            
            unicodeRange = unicodeRange.concat(fontOptions.CustomUnicodeRange); 
            
            GameGlobal.manager.font.getCommonFont({
                success(fontData) {
                    
                    if (isIOS) {
                        fixCmapTable(fontData);
                    }
                    
                    if (isAndroid) {
                        const tempData = splitTTCToBufferOnlySC(fontData);
                        if (tempData) {
                            fontData = tempData; 
                        }
                    }
                    fontDataCache = fontData; 
                    resolve(); 
                },
                fail: reject, 
            }, unicodeRange); 
        });
    }
    return getFontPromise; 
}
function WXGetFontRawData(conf, callbackId, forceFallback = false) {
    const config = formatJsonStr(conf); 
    const loadFromRemote = !GameGlobal.manager?.font?.getCommonFont; 
    GameGlobal.manager.TimeLogger.timeStart('WXGetFontRawData'); 
    
    handleGetFontData(config, forceFallback).then(() => {
        if (fontDataCache) {
            
            GameGlobal.manager.font.reportGetFontCost(GameGlobal.manager.TimeLogger.timeEnd('WXGetFontRawData'), { loadFromRemote: forceFallback || loadFromRemote, isReadFromCache, preloadWXFont: GameGlobal.unityNamespace.preloadWXFont });
            const { ascent, descent, lineGap, unitsPerEm } = readMetrics(fontDataCache) || {}; 
            tempCacheObj[callbackId] = fontDataCache; 
            moduleHelper.send('GetFontRawDataCallback', JSON.stringify({ callbackId, type: 'success', res: JSON.stringify({ byteLength: fontDataCache.byteLength, ascent, descent, lineGap, unitsPerEm }) }));
            GameGlobal.manager.Logger.pluginLog(`[font] load font from ${forceFallback || loadFromRemote ? `network, url=${config.fallbackUrl}` : 'local'}`);
            
            fontDataCache = null; 
        }
        else {
            GameGlobal.manager.Logger.pluginError('[font] load font error: empty content');
        }
    })
        .catch((err) => {
        if (err.errmsg === 'no support font' && forceFallback === false) {
            
            WXGetFontRawData(conf, callbackId, true);
        }
        else {
            GameGlobal.manager.Logger.pluginError('[font] load font error: ', err); 
        }
    });
}
function WXShareFontBuffer(buffer, offset, callbackId) {
    if (typeof tempCacheObj[callbackId] === 'string') {
        GameGlobal.manager.Logger.pluginError('[font]内存写入异常');
    }
    buffer.set(new Uint8Array(tempCacheObj[callbackId]), offset);
    delete tempCacheObj[callbackId];
}
export function preloadWxCommonFont() {
    
    if (!!GameGlobal.unityNamespace.preloadWXFont && !!GameGlobal.manager?.font?.getCommonFont) {
        handleGetFontData();
    }
}
export default {
    WXGetFontRawData,
    WXShareFontBuffer,
};