Function globalMouseoverHandler

Picviewer CE+/dist.user.js:27087–27150

(e)

        var checkFloatBarTimer, initMouse = false, composedTarget, checking = false, target, type, clientX, clientY, altKey;
        function globalMouseoverHandler(e) {
            if (galleryMode) return;//库模式全屏中......
            if (e.target == ImgWindowC.overlayer) return;
            let canPreview = checkPreview(e);
            if (e.type == "mousemove") {
                if (!initMouse) {
                    initMouse = true;
                    return;
                }
                if ((uniqueImgWin && !uniqueImgWin.removed && !uniqueImgWin.previewed)) {
                    if (canPreview || prefs.floatBar.globalkeys.invertInitShow) {
                        uniqueImgWinInitX = e.clientX;
                        uniqueImgWinInitY = e.clientY;
                        uniqueImgWin.followPos(uniqueImgWinInitX, uniqueImgWinInitY);
                    } else {
                        uniqueImgWin.remove();
                    }
                    return;
                } else {
                    if (checking) {
                        setTimeout(() => {
                            checking = false;
                        }, 50);
                        return;
                    }
                    checking = true;
                    if (!canPreview) return;
                    let target = e.target;
                    if (target.nodeName == "PICTURE"){
                        target = target.lastElementChild || target;
                    }
                    if (target.nodeName != 'IMG') return;
                }
            }
            if (!initMouse) return;
            if (e.type == "keydown") {
                if (!target) return;
            } else {
                target = e.target;
                type = e.type;
                clientX = e.clientX;
                clientY = e.clientY;
                altKey = e.altKey;
                if (e.type !== "mousemove") {
                    let path = e && e.composedPath && e.composedPath();
                    composedTarget = path && path[0];
                }
            }
            clearTimeout(checkFloatBarTimer);
            checkFloatBarTimer = setTimeout(function() {
                if (!target || !target.parentNode) return;
                if (gallery && gallery.shown) return;
                checkFloatBar(target, type, canPreview, clientX, clientY, altKey, composedTarget);
            }, 50);
            if (e.target.shadowRoot) {
                if (!e.target.shadowRoot.initListener) {
                    e.target.shadowRoot.initListener = true;
                    e.target.shadowRoot.addEventListener('mouseenter', (e) => {