/** * 前端窗口类 * @param string foreWinId 前端窗口对象的ID */ function ForeWindow(foreWinId) { var self = this; var m_isIE = (document.all ? true : false); var m_foreWin = $(foreWinId); // 前端窗口对象 var m_boardWin = null; // 遮罩窗口对象 var m_screenWidth = 0; var m_screenHeight = 0; var m_left = 0; var m_top = 0; var m_isShow = false; var m_Overflow = ''; /** * 遮罩窗口的颜色 */ this.backColor = '#333333'; /** * 遮罩窗口的不透明度 */ this.opacity = 55; /** * 自适应浏览器窗口大小 */ function autoResize() { try { if(!m_isShow) return; m_screenWidth = document.documentElement.clientWidth; m_screenHeight = document.documentElement.clientHeight; m_foreWin.style.position='absolute'; m_foreWin.style.display = 'block'; if(m_left != null && m_top != null){ m_foreWin.style.top = document.documentElement.scrollTop + m_top + 'px'; m_foreWin.style.left = document.documentElement.scrollLeft + m_left + 'px'; }else{ m_foreWin.style.top = document.documentElement.scrollTop + ((m_screenHeight - m_foreWin.offsetHeight)/2) - 55 + 'px'; m_foreWin.style.left = document.documentElement.scrollLeft + ((m_screenWidth - m_foreWin.offsetWidth)/2) + 'px'; } m_foreWin.style.zIndex = '' + (m_boardWin.style.zIndex + 1); m_boardWin.style.width = m_screenWidth + 'px'; m_boardWin.style.height = m_screenHeight + 'px'; m_boardWin.style.top = document.documentElement.scrollTop + 'px'; m_boardWin.style.left = document.documentElement.scrollLeft + 'px'; m_boardWin.style.display = 'block'; } catch(ex){} } /** * 显示窗口 * @param integer left 窗口距左端的距离 * @param integer top 窗口距顶端的距离 */ this.show = function(left, top) { try { if(m_isShow) return; m_isShow = true; m_left = left; m_top = top; m_Overflow = document.body.parentNode.style.overflow; document.body.parentNode.style.overflow="hidden"; createBoardWindow(); autoResize(); if(m_isIE){ // 添加事件监听 window.attachEvent('onresize',autoResize); }else{ window.addEventListener('resize',autoResize,false); } } catch(ex){} }; /** * 隐藏窗口 */ this.hide = function() { try { m_isShow = false; m_foreWin.style.display = 'none'; m_boardWin.style.display = 'none'; document.body.parentNode.style.overflow = m_Overflow; if(m_isIE){ // 取消事件监听 window.detachEvent('onresize',autoResize); }else{ window.removeEventListener('resize',autoResize,true); } document.body.removeChild(m_boardWin); m_boardWin = null; } catch(ex){} }; /** * 获取DOM对象实例句柄 */ function $(id){return document.getElementById(id);} /** * 创建遮罩窗口 */ function createBoardWindow() { try { m_boardWin = document.createElement('IFRAME'); m_boardWin.frameBorder=0; m_boardWin.allowTransparency=false; document.body.appendChild(m_boardWin); m_boardWin.style.cssText="position:absolute;left:0px;top:0px;display:none"; m_boardWin.contentWindow.document.open(); m_boardWin.contentWindow.document.write(''); m_boardWin.contentWindow.document.close(); m_boardWin.style.filter='alpha(opacity='+self.opacity+')'; m_boardWin.style.opacity=(self.opacity/100); m_boardWin.style.MozOpacity=(self.opacity/100); m_boardWin.style.zIndex = 999; } catch(ex){} } }