(function ($){ function style(t) { var k,doc = document, hd = $('head')[0], h = hd || doc.documentElement, s = h.getElementsByTagName("style"); if (s.length === 0) { if (doc.createStyleSheet) { k = doc.createStyleSheet() }else{ k = doc.createElement('style'); k.type = 'text/css'; h.appendChild(k); } } k = s[s.length - 1]; if (k.styleSheet) { k.styleSheet.cssText += t; } else { k.appendChild(doc.createTextNode(t)); } }; var css = '.overlay{' + 'top:0;left:0;z-index:10000;' + 'width:100%;height:100%;' + 'background:#000;' + 'filter:alpha(opacity=30);opacity:0.3;' + 'position:fixed;display:none;}'; var winZ = 9e3; var topZ = 9e5; var dlgZ = 9e4; var maskLay; var IE6 = $.isIE6 = $.browser.msie && $.browser.version < 7; if (IE6) { css += 'html body {margin:0;height:100%}' + '.ie6_overlay select {visibility:hidden}' + '.ie6_overlay_show select {_visibility:visible;}' + '.overlay {position: absolute;' + 'left: expression(documentElement.scrollLeft +' + 'documentElement.clientWidth - this.offsetWidth);' + 'top: expression(documentElement.scrollTop + ' + 'documentElement.clientHeight - this.offsetHeight);}'; } style(css); function MaskLay(){ var _self = this; this.layer = $('
').addClass("overlay").appendTo(document.body); this.layer.attr('tabIndex', '-1'); this.binds = []; this.layer.bind('click', function(e) { _self.onclick(); }); } MaskLay.prototype = { onclick: $.noop, onshow: $.noop, onhide: $.noop, css: function() { this.layer.css.apply(this.layer, arguments); return this; }, clean: function (){ var binds = []; for (var i = this.binds.length; i--;) { var el = this.binds[i]; if (el.parentNode && el.style.display != 'none') { binds.push(el); } } this.binds = binds; }, _del: function (el){ for (var i = this.binds.length; i--;) { if (this.binds[i] === el) { this.binds.splice(i, 1); } } }, show: function(dlg) { this.layer.show(); this.visable = true; this.layer.get(0).focus(); if (IE6) { $(document.body).addClass('ie6_overlay'); } var el = $(dlg)[0], z, idx; if (el) { this.currentDlg = el; this._del(el); this.binds.push(el); z = $(el).css('zIndex') - 1; } else { z = winZ++; } this.layer.css('zIndex', z); this.onshow(el); return this; }, hide: function() { this.visable = false; this.clean(); var L = this.binds.length; if (L) { this.show(this.binds[L - 1]); } else { if (IE6) { $(document.body).addClass('ie6_overlay'); } this.currentLay = false; this.layer.hide(); this.onhide(); } return this; } }; function getMaskLay(){ if (!maskLay) { maskLay = new MaskLay(); } return maskLay; } $.viewport = function() { var b = document.body, c = document.documentElement, d = Math.max; return { width: c.clientWidth || b.clientWidth, height: c.clientHeight || b.clientHeight, left: d(c.scrollLeft, b.scrollLeft), top: d(c.scrollTop, b.scrollTop) }; }; function Drag(ini){ var _self = this; this.handle = $(ini.handle); if (this.handle.size() == 0 || this.handle.data('dragOn')) { throw Error('handle is null, or drag is seted!'); } this.handle.data('dragOn', true); this.layer = ini.layer ? $(ini.layer) : this.handle; this.isFixed = this.layer.css('position') == 'fixed' && !$.isIE6; this.handle.css('zoom', 1); this.range = ini.range; this.autoback = ini.autoback !== false; if (this.range && (!(this.range instanceof Array) || this.range.length != 4)) { throw Error('drag range error!'); } this.oldCursor = this.handle.css('cursor'); this.dragBorder = ini.dragBorder !== false; this.moveEvent = $.proxy(_self.draging, _self); this.stopEvent = $.proxy(_self.dragEnd, _self); this.handle.bind('mousedown', function(e) { var pos; pos = _self.layer.offset(); _self.initData = { 'x': e.clientX, 'y': e.clientY, 'z': _self.layer.css('zIndex'), 'left': pos.left, 'top': pos.top }; var z = _self.getZIndex(); _self.layer.css('zIndex', z); _self.handle.css('cursor', 'move'); $(document).bind('mousemove', _self.moveEvent) .bind('losecapture', _self.stopEvent) .bind('blur', _self.stopEvent) .bind('mouseup', _self.stopEvent); _self.handle.each(function (){ if (this.setCapture) { this.setCapture(); } }); e.stopPropagation(); e.data = _self.initData; _self.ondragstart(e); }); } Drag.prototype = { ondragstart: $.noop, ondraging: $.noop, ondragend: $.noop, fixRange: function (val, dir){ var a = Math.max, b = Math.min, c = this.range; if (c instanceof Array){ return dir == 'x' ? a(c[0], b(val, c[2])): a(c[1], b(val, c[3])); }else{ return val; } }, getZIndex: function (){ return topZ++; }, draging: function(e) { if (this.dragBorder && !this.proxy) { this.createProxy(this.initData); } var el = this.proxy || this.layer, init = this.initData, offset = { left: e.clientX - init.x, top: e.clientY - init.y }; e.offset = offset; this.ondraging(e, el); el.css('left', this.fixRange(init.left + offset.left, 'x') + 'px'); el.css('top', this.fixRange(init.top + offset.top) + 'px'); this.clearRange(); }, clearRange: function() { try { return window.getSelection ? window.getSelection().removeAllRanges() : document.selection.empty(); } catch(e) {} }, createProxy: function(d) { var layer = this.layer.get(0); this.proxy = $('').appendTo(document.body).css({ position: 'absolute', background: 'none', zIndex: this.layer.css('zIndex') + 5, border: '1px dotted #6A3620', width: layer.offsetWidth + 'px', height: layer.offsetHeight + 'px', left: d.left + 'px', top: d.top + 'px' }); }, dragEnd: function(e) { var a, b, pos, client, _self = this; if (this.proxy) { pos = this.isFixed ? this.proxy[0].getBoundingClientRect() : this.proxy.offset(); this.layer.css({ left: pos.left + 'px', top: pos.top + 'px' }); this.proxy.each(function (i, el){ el.parentNode.removeChild(el); }); this.proxy = false; } pos = this.layer.offset(); client = $.viewport(); $(document).unbind('mousemove', this.moveEvent) .unbind('losecapture', this.stopEvent) .unbind('blur', this.stopEvent) .unbind('mouseup', this.stopEvent); this.handle.each(function (i, el){ if (el.releaseCapture) { el.releaseCapture(); } }); this.handle.css('cursor', this.oldCursor); this.layer.css('zIndex', this.initData.z); a = pos.left < client.left; b = pos.top < client.top; if (this.autoback && (a || b)) { var fx = {}; if (a) { fx.left = this.isFixed ? 0 : client.left; } if (b) { fx.top = this.isFixed ? 0 : client.top; } this.layer.animate(fx, 200); } this.ondragend(e); } }; $.fn.drag = function (ini){ ini = Object(ini); ini.handle = this; return new Drag(ini); }; function Dialog(opts){ var _self = this; this.mask = getMaskLay(); this.layer = $(opts.layer); this.isFixed = this.layer.css('position') == 'fixed' && !$.isIE6; if (!this.isFixed) { this.layer.css('position', 'absolute'); } this.content = this.layer.find(opts.content); this.buttons = this.layer.find(opts.buttons); this.title = this.layer.find(opts.title); this._onbtnclick = function (e){ _self.close(this); }; this._onbtnmousedown = function (e){ return e.stopPropagation(); }; this.buttons.bind('click', this._onbtnclick) .bind('mousedown', this._onbtnmousedown); if (opts.drag) { $(opts.drag).drag({ layer: opts.layer, autoback: opts.autoback }); } } Dialog.prototype = { opacity: 0.5, scale: 2.8, onopen: $.noop, onclose: $.noop, open: function (html, title, opacity){ var z = this.getZIndex(); if (title && this.title.size()) { this.title.html(title); } this.layer.css('zIndex', z); if (this.content.size()) { this.content.html(html); } if (!isNaN(opacity)) { opacity = this.opacity; } this.mask.css('opacity', opacity); this.mask.show(this.layer); this.onopen(); this.center(); }, close: function (btn){ if (!btn || this.onclose(btn) !== false) { this.defineHide(this.layer); this.mask.hide(); } }, defineHide: function (layer){ this.layer.hide(); }, defineShow: function (){ this.layer.show().css('opacity', 1); }, center: function (){ var client = $.viewport(), el = this.layer.get(0); if (this.isFixed) { client.top = 0; } this.defineShow(); this.layer.css({ left: Math.max(0, (client.width - el.offsetWidth)/2 + client.left) + 'px', top: Math.max(0, (client.height - el.offsetHeight)/this.scale + client.top) + 'px' }); }, getZIndex: function (){ return dlgZ++; }, destroy: function (){ this.buttons.unbind('click', this._onbtnclick) .unbind('mousedown', this._onbtnmousedown); } }; $.fn.dialog = function (opts){ opts = Object(opts); opts.layer = this; return new Dialog(opts); }; })(jQuery);