📄 jscookmenu.js
字号:
/*
JSCookMenu v1.31. (c) Copyright 2002-2005 by Heng Yuan
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
ITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.
*/
// Globals
var _cmIDCount = 0;
var _cmIDName = 'cmSubMenuID'; // for creating submenu id
var _cmTimeOut = null; // how long the menu would stay
var _cmCurrentItem = null; // the current menu item being selected;
var _cmNoAction = new Object (); // indicate that the item cannot be hovered.
var _cmNoClick = new Object (); // similar to _cmNoAction but does not respond to mouseup/mousedown events
var _cmSplit = new Object (); // indicate that the item is a menu split
var _cmItemList = new Array (); // a simple list of items
// default node properties
var _cmNodeProperties =
{
// main menu display attributes
//
// Note. When the menu bar is horizontal,
// mainFolderLeft and mainFolderRight are
// put in <span></span>. When the menu
// bar is vertical, they would be put in
// a separate TD cell.
// HTML code to the left of the folder item
mainFolderLeft: '',
// HTML code to the right of the folder item
mainFolderRight: '',
// HTML code to the left of the regular item
mainItemLeft: '',
// HTML code to the right of the regular item
mainItemRight: '',
// sub menu display attributes
// HTML code to the left of the folder item
folderLeft: '',
// HTML code to the right of the folder item
folderRight: '',
// HTML code to the left of the regular item
itemLeft: '',
// HTML code to the right of the regular item
itemRight: '',
// cell spacing for main menu
mainSpacing: 0,
// cell spacing for sub menus
subSpacing: 0,
// auto disappear time for submenus in milli-seconds
delay: 500
};
//////////////////////////////////////////////////////////////////////
//
// Drawing Functions and Utility Functions
//
//////////////////////////////////////////////////////////////////////
//
// produce a new unique id
//
function cmNewID ()
{
return _cmIDName + (++_cmIDCount);
}
//
// return the property string for the menu item
//
function cmActionItem (item, prefix, isMain, idSub, orient, nodeProperties)
{
// var index = _cmItemList.push (item) - 1;
_cmItemList[_cmItemList.length] = item;
var index = _cmItemList.length - 1;
idSub = (!idSub) ? 'null' : ('\'' + idSub + '\'');
orient = '\'' + orient + '\'';
prefix = '\'' + prefix + '\'';
return ' onmouseover="cmItemMouseOver (this,' + prefix + ',' + isMain + ',' + idSub + ',' + orient + ',' + index + ')" onmouseout="cmItemMouseOut (this,' + nodeProperties.delay + ')" onmousedown="cmItemMouseDown (this,' + index + ')" onmouseup="cmItemMouseUp (this,' + index + ')"';
}
//
// this one is used by _cmNoClick to only take care of onmouseover and onmouseout
// events which are associated with menu but not actions associated with menu clicking/closing
//
function cmNoClickItem (item, prefix, isMain, idSub, orient, nodeProperties)
{
// var index = _cmItemList.push (item) - 1;
_cmItemList[_cmItemList.length] = item;
var index = _cmItemList.length - 1;
idSub = (!idSub) ? 'null' : ('\'' + idSub + '\'');
orient = '\'' + orient + '\'';
prefix = '\'' + prefix + '\'';
return ' onmouseover="cmItemMouseOver (this,' + prefix + ',' + isMain + ',' + idSub + ',' + orient + ',' + index + ')" onmouseout="cmItemMouseOut (this,' + nodeProperties.delay + ')"';
}
function cmNoActionItem (item, prefix)
{
return item[1];
}
function cmSplitItem (prefix, isMain, vertical)
{
var classStr = 'cm' + prefix;
if (isMain)
{
classStr += 'Main';
if (vertical)
classStr += 'HSplit';
else
classStr += 'VSplit';
}
else
classStr += 'HSplit';
var item = eval (classStr);
return cmNoActionItem (item, prefix);
}
//
// draw the sub menu recursively
//
function cmDrawSubMenu (subMenu, prefix, id, orient, nodeProperties)
{
var str = '<div class="' + prefix + 'SubMenu" id="' + id + '"><table summary="sub menu" cellspacing="' + nodeProperties.subSpacing + '" class="' + prefix + 'SubMenuTable">';
var strSub = '';
var item;
var idSub;
var hasChild;
var i;
var classStr;
for (i = 5; i < subMenu.length; ++i)
{
item = subMenu[i];
if (!item)
continue;
hasChild = (item.length > 5);
idSub = hasChild ? cmNewID () : null;
str += '<tr class="' + prefix + 'MenuItem"';
if (item[0] != _cmNoClick)
str += cmActionItem (item, prefix, 0, idSub, orient, nodeProperties);
else
str += cmNoClickItem (item, prefix, 0, idSub, orient, nodeProperties);
str += '>'
if (item == _cmSplit)
{
str += cmSplitItem (prefix, 0, true);
str += '</tr>';
continue;
}
if (item[0] == _cmNoAction || item[0] == _cmNoClick)
{
str += cmNoActionItem (item, prefix);
str += '</tr>';
continue;
}
classStr = prefix + 'Menu';
classStr += hasChild ? 'Folder' : 'Item';
str += '<td class="' + classStr + 'Left">';
if (item[0] != null)
str += item[0];
else
str += hasChild ? nodeProperties.folderLeft : nodeProperties.itemLeft;
str += '<td class="' + classStr + 'Text">' + item[1];
str += '<td class="' + classStr + 'Right">';
if (hasChild)
{
str += nodeProperties.folderRight;
strSub += cmDrawSubMenu (item, prefix, idSub, orient, nodeProperties);
}
else
str += nodeProperties.itemRight;
str += '</td></tr>';
}
str += '</table></div>' + strSub;
return str;
}
//
// The function that builds the menu inside the specified element id.
//
// @param id id of the element
// orient orientation of the menu in [hv][ab][lr] format
// menu the menu object to be drawn
// nodeProperties properties for each menu node
//
function cmDraw (id, menu, orient, nodeProperties, prefix)
{
var obj = cmGetObject (id);
if (!nodeProperties)
nodeProperties = _cmNodeProperties;
if (!prefix)
prefix = '';
var str = '<table summary="main menu" class="' + prefix + 'Menu" cellspacing="' + nodeProperties.mainSpacing + '">';
var strSub = '';
if (!orient)
orient = 'hbr';
var orientStr = String (orient);
var orientSub;
var vertical;
// draw the main menu items
if (orientStr.charAt (0) == 'h')
{
// horizontal menu
orientSub = 'v' + orientStr.substr (1, 2);
str += '<tr>';
vertical = false;
}
else
{
// vertical menu
orientSub = 'v' + orientStr.substr (1, 2);
vertical = true;
}
var i;
var item;
var idSub;
var hasChild;
var classStr;
for (i = 0; i < menu.length; ++i)
{
item = menu[i];
if (!item)
continue;
str += vertical ? '<tr' : '<td';
str += ' class="' + prefix + 'MainItem"';
hasChild = (item.length > 5);
idSub = hasChild ? cmNewID () : null;
str += cmActionItem (item, prefix, 1, idSub, orient, nodeProperties) + '>';
if (item == _cmSplit)
{
str += cmSplitItem (prefix, 1, vertical);
str += vertical? '</tr>' : '</td>';
continue;
}
if (item[0] == _cmNoAction || item[0] == _cmNoClick)
{
str += cmNoActionItem (item, prefix);
str += vertical? '</tr>' : '</td>';
continue;
}
classStr = prefix + 'Main' + (hasChild ? 'Folder' : 'Item');
str += vertical ? '<td' : '<span';
str += ' class="' + classStr + 'Left">';
str += (item[0] == null) ? (hasChild ? nodeProperties.mainFolderLeft : nodeProperties.mainItemLeft)
: item[0];
str += vertical ? '</td>' : '</span>';
str += vertical ? '<td' : '<span';
str += ' class="' + classStr + 'Text">';
str += item[1];
str += vertical ? '</td>' : '</span>';
str += vertical ? '<td' : '<span';
str += ' class="' + classStr + 'Right">';
str += hasChild ? nodeProperties.mainFolderRight : nodeProperties.mainItemRight;
str += vertical ? '</td>' : '</span>';
str += vertical ? '</tr>' : '</td>';
if (hasChild)
strSub += cmDrawSubMenu (item, prefix, idSub, orientSub, nodeProperties);
}
if (!vertical)
str += '</tr>';
str += '</table>' + strSub;
obj.innerHTML = str;
//document.write ("<xmp>" + str + "</xmp>");
}
//////////////////////////////////////////////////////////////////////
//
// Mouse Event Handling Functions
//
//////////////////////////////////////////////////////////////////////
//
// action should be taken for mouse moving in to the menu item
//
function cmItemMouseOver (obj, prefix, isMain, idSub, orient, index)
{
clearTimeout (_cmTimeOut);
if (!obj.cmPrefix)
{
obj.cmPrefix = prefix;
obj.cmIsMain = isMain;
}
var thisMenu = cmGetThisMenu (obj, prefix);
// insert obj into cmItems if cmItems doesn't have obj
if (!thisMenu.cmItems)
thisMenu.cmItems = new Array ();
var i;
for (i = 0; i < thisMenu.cmItems.length; ++i)
{
if (thisMenu.cmItems[i] == obj)
break;
}
if (i == thisMenu.cmItems.length)
{
//thisMenu.cmItems.push (obj);
thisMenu.cmItems[i] = obj;
}
// hide the previous submenu that is not this branch
if (_cmCurrentItem)
{
// occationally, we get this case when user
// move the mouse slowly to the border
if (_cmCurrentItem == thisMenu)
return;
var thatPrefix = _cmCurrentItem.cmPrefix;
var thatMenu = cmGetThisMenu (_cmCurrentItem, thatPrefix);
if (thatMenu != thisMenu.cmParentMenu)
{
if (_cmCurrentItem.cmIsMain)
_cmCurrentItem.className = thatPrefix + 'MainItem';
else
_cmCurrentItem.className = thatPrefix + 'MenuItem';
if (thatMenu.id != idSub)
cmHideMenu (thatMenu, thisMenu, thatPrefix);
}
}
// okay, set the current menu to this obj
_cmCurrentItem = obj;
// just in case, reset all items in this menu to MenuItem
cmResetMenu (thisMenu, prefix);
var item = _cmItemList[index];
var isDefaultItem = cmIsDefaultItem (item);
if (isDefaultItem)
{
if (isMain)
obj.className = prefix + 'MainItemHover';
else
obj.className = prefix + 'MenuItemHover';
}
if (idSub)
{
var subMenu = cmGetObject (idSub);
cmShowSubMenu (obj, prefix, subMenu, orient);
}
var descript = '';
if (item.length > 4)
descript = (item[4] != null) ? item[4] : (item[2] ? item[2] : descript);
else if (item.length > 2)
descript = (item[2] ? item[2] : descript);
window.defaultStatus = descript;
}
//
// action should be taken for mouse moving out of the menu item
//
function cmItemMouseOut (obj, delayTime)
{
if (!delayTime)
delayTime = _cmNodeProperties.delay;
_cmTimeOut = window.setTimeout ('cmHideMenuTime ()', delayTime);
window.defaultStatus = '';
}
//
// action should be taken for mouse button down at a menu item
//
function cmItemMouseDown (obj, index)
{
if (cmIsDefaultItem (_cmItemList[index]))
{
if (obj.cmIsMain)
obj.className = obj.cmPrefix + 'MainItemActive';
else
obj.className = obj.cmPrefix + 'MenuItemActive';
}
}
//
// action should be taken for mouse button up at a menu item
//
function cmItemMouseUp (obj, index)
{
var item = _cmItemList[index];
var link = null, target = '_self';
if (item.length > 2)
link = item[2];
if (item.length > 3 && item[3])
target = item[3];
if (link != null)
{
window.open (link, target);
}
var prefix = obj.cmPrefix;
var thisMenu = cmGetThisMenu (obj, prefix);
var hasChild = (item.length > 5);
if (!hasChild)
{
if (cmIsDefaultItem (item))
{
if (obj.cmIsMain)
obj.className = prefix + 'MainItem';
else
obj.className = prefix + 'MenuItem';
}
cmHideMenu (thisMenu, null, prefix);
}
else
{
if (cmIsDefaultItem (item))
{
if (obj.cmIsMain)
obj.className = prefix + 'MainItemHover';
else
obj.className = prefix + 'MenuItemHover';
}
}
}
//////////////////////////////////////////////////////////////////////
//
// Mouse Event Support Utility Functions
⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -