Function onMessage

src/inject/index.ts:87–167

(message: MessageBGtoCS | MessageUItoCS | DebugMessageBGtoCS)

}

function onMessage(message: MessageBGtoCS | MessageUItoCS | DebugMessageBGtoCS) {
    if (__DEBUG__ && message.type === DebugMessageTypeBGtoCS.RELOAD) {
        logWarn('Cleaning up before update');
        cleanup();
        return;
    }

    if ((message as MessageBGtoCS).scriptId !== scriptId && message.type !== MessageTypeUItoCS.EXPORT_CSS) {
        return;
    }

    logInfoCollapsed(`onMessage[${message.type}]`, message);
    switch (message.type) {
        case MessageTypeBGtoCS.ADD_CSS_FILTER:
        case MessageTypeBGtoCS.ADD_STATIC_THEME: {
            const {css, detectDarkTheme, detectorHints} = message.data;
            removeDynamicTheme();
            createOrUpdateStyle(css, message.type === MessageTypeBGtoCS.ADD_STATIC_THEME ? 'static' : 'filter');
            writeEnabledForHost(true);
            if (detectDarkTheme) {
                runDarkThemeDetector((hasDarkTheme) => {
                    if (hasDarkTheme) {
                        removeStyle();
                        onDarkThemeDetected();
                    }
                }, detectorHints);
            }
            break;
        }
        case MessageTypeBGtoCS.ADD_SVG_FILTER: {
            const {css, svgMatrix, svgReverseMatrix, detectDarkTheme, detectorHints} = message.data;
            removeDynamicTheme();
            createOrUpdateSVGFilter(svgMatrix, svgReverseMatrix);
            createOrUpdateStyle(css, 'filter');
            writeEnabledForHost(true);
            if (detectDarkTheme) {
                runDarkThemeDetector((hasDarkTheme) => {
                    if (hasDarkTheme) {
                        removeStyle();
                        removeSVGFilter();
                        onDarkThemeDetected();
                    }
                }, detectorHints);
            }
            break;
        }
        case MessageTypeBGtoCS.ADD_DYNAMIC_THEME: {
            const {theme, fixes, isIFrame, detectDarkTheme, detectorHints} = message.data;
            removeStyle();
            createOrUpdateDynamicTheme(theme, fixes, isIFrame);
            writeEnabledForHost(true);
            if (detectDarkTheme) {
                runDarkThemeDetector((hasDarkTheme) => {
                    if (hasDarkTheme) {
                        removeDynamicTheme();
                        onDarkThemeDetected();
                    }
                }, detectorHints);