WebContent/resource/js/dragDivResize.js

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(function ($) {
    $.fn.dragDivResize = function () {
        var deltaX, deltaY, _startX, _startY;
        var resizeW, resizeH;
        var size = 20;
        var minSize = 10;
        var scroll = getScrollOffsets();
        var _this = this;
        for (var i = 0; i < _this.length; i++) {
            var target = this[i];
            $(target).on("mouseover mousemove", overHandler);
        }
        function outHandler() {
            for (var i = 0; i < _this.length; i++) {
                target.style.outline = "none";
            }
            document.body.style.cursor = "default";
        }
        function overHandler(event) {
            target = event.target || event.srcElement;
            var startX = event.clientX + scroll.x;
            var startY = event.clientY + scroll.y;
            var w = $(target).width();
            var h = $(target).height();
            _startX = parseInt(startX);
            _startY = parseInt(startY);
            if ((0 < target.offsetLeft + w - _startX && target.offsetLeft + w - _startX < size) || (0 < target.offsetTop + h - _startY && target.offsetTop + h - _startY < size)) {
                target.style.outline = "1px solid #438eb9";
                if ((0 > target.offsetLeft + w - _startX || target.offsetLeft + w - _startX > size) && 0 < target.offsetTop + h - _startY && target.offsetTop + h - _startY < size) {
                    resizeW = false;
                    resizeH = true;
                    document.body.style.cursor = "s-resize";
                }
                if (0 < target.offsetLeft + w - _startX && target.offsetLeft + w - _startX < size && (0 > target.offsetTop + h - _startY || target.offsetTop + h - _startY > size)) {
                    resizeW = true;
                    resizeH = false;
                    document.body.style.cursor = "w-resize";
                }
                if (0 < target.offsetLeft + w - _startX && target.offsetLeft + w - _startX < size && 0 < target.offsetTop + h - _startY && target.offsetTop + h - _startY < size) {
                    resizeW = true;
                    resizeH = true;
                    document.body.style.cursor = "se-resize";
                }
                $(target).on('mousedown', downHandler);
            } else {
                resizeW = false;
                resizeH = false;
                $(target).off('mousedown', downHandler);
            }
        }
        function downHandler(event) {
            target = event.target || event.srcElement;
            var startX = event.clientX + scroll.x;
            var startY = event.clientY + scroll.y;
            _startX = parseInt(startX);
            _startY = parseInt(startY);
            if (document.addEventListener) {
                document.addEventListener("mousemove", moveHandler, true);
                document.addEventListener("mouseup", upHandler, true);
            } else if (document.attachEvent) {