User:Liangent/Scripts/Patches/MediaWiki:Edittools.js

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//加載本腳本時，請預先判斷/skins-1.5/common/edit.js已加載。

importScript('MediaWiki:Common.js/main.js');

/**
 mwCustomEditButtons数组对象　包含所有按钮項、下拉工具列表項、相关方法
 @method indexOf 獲得指定項或指定ID的項在mwCustomEditButtons中的索引
 @method insert 插入指定項
 @method remove 刪除指定項或指定ID、index的項
 @method getInsertAction 返回一个钩子函数 (action可以設成'line'表示默認的行模式插入)
 */
if(mwCustomEditButtons.length>0){mwCustomEditButtons=[];}
mwCustomEditButtons.state="normal";
mwCustomEditButtons.indexOf=function(item){
	var item=typeof item=='string'?mwCustomEditButtons[item]:item;
	for(var i=mwCustomEditButtons.length;i>0;i--){
		if(mwCustomEditButtons[i-1]==item){return i-1;}
	}
	return -1;
}
mwCustomEditButtons.insert=function(item,ref,pos){
	if(!ref){mwCustomEditButtons.push(item);}
	else{
		ref=typeof ref=='number'?ref:mwCustomEditButtons.indexOf(ref);
		if(ref>-1){
			ref+=pos=='after'?1:0;
			mwCustomEditButtons.splice(ref,0,item);
		}
	}
	if(!mwCustomEditButtons[item.id]){mwCustomEditButtons[item.id]=item;}
}
mwCustomEditButtons.remove=function(index){
	if(typeof index != 'number'){index=mwCustomEditButtons.indexOf(index);}
	if(index>-1){
		var id=mwCustomEditButtons[index].id;
		delete mwCustomEditButtons[id];
		return mwCustomEditButtons.splice(index,1);
	}
	return null;
}
 
/**
 插入光标所在的分段前后
 sectReg 分段的正则表达式
 author & maintainer : fdcn@zhwiki
 */
function insertSect(sectReg,pre,post){
	var txtarea = document.editform.wpTextbox1;
	insertTags('<sectins>','</sectins>','');
	var reg=/<sectins><\/sectins>/g;
	var scrollTop = txtarea.scrollTop;
	var text=txtarea.value;
 
	var index=-1;
	text=text.replace(reg,function(m,i){index=i;return '';});
	if(index>-1){
		sectReg.lastIndex=0;				
		var currentIndex=0,startIndex=0,endIndex=0;
		while(true){
			var item= sectReg.exec(text);
			if(!item){
				endIndex=text.length;
				break;
			}
			currentIndex=item.index;
			if(currentIndex<index){
				startIndex=sectReg.lastIndex;
				continue;
			}else{
				endIndex=currentIndex;
				break;
			}
		}
		txtarea.value=text.substring(0, startIndex)+pre+text.substring(startIndex,endIndex)+post+text.substr(endIndex);
	}else{
		txtarea.value=text.replace(/<sectins>/g,pre).replace(/<\/sectins>/g,post);
	}
	txtarea.scrollTop = scrollTop;
}
 
/**
 插入光标所在的行前后
 @para isMultiLine 是否应用于每一行前后
 * author & maintainer : fdcn@zhwiki
 */
function insertLine(pre,sampletext,post,isMultiLine){
	var txtarea = document.editform.wpTextbox1;
	var scrollTop = txtarea.scrollTop;
	insertTags('<sectins>','</sectins>','');
	var text=txtarea.value
		.replace(/\r/g,"")
		.replace(/^(.*)<sectins>/m,'<sectins>$1')
		.replace(/<\/sectins>(.*)$/m,'$1<\/sectins>')
		.replace(/<sectins> *<\/sectins>/,'<sectins>'+sampletext+'<\/sectins>');
	if(/<sectins>((?:a|[^a])*)<\/sectins>/.exec(text)){
		var leftContext=RegExp.leftContext;
		var rightContext =RegExp.rightContext ;
		var matchContext=	isMultiLine
			? RegExp.$1.replace(/$/mg,'<endline\/>').replace(/^/mg,pre).replace(/<endline\/>/g,post)
			: pre+RegExp.$1+post;
	}
	txtarea.value=leftContext+matchContext+rightContext;
 
	//IE
	if (document.selection && !is_gecko) {
		var range=txtarea.createTextRange();
		var searchText=matchContext.replace(/\n.*/g,'');
		range.findText(searchText);
		range.select();
	// Mozilla
	}else if(txtarea.selectionStart || txtarea.selectionStart == '0') {
		txtarea.selectionStart = leftContext.length;
		txtarea.selectionEnd = txtarea.selectionStart +matchContext.length;
		txtarea.scrollTop = scrollTop;
	}
	// reposition cursor if possible
	if (txtarea.createTextRange) {
		txtarea.caretPos = document.selection.createRange().duplicate();
	}
}
 
/**
 取得編輯动作
 */
function getInsertAction(action,tagOpen,sampleText,tagClose){
	if (action=='lineInsert') {
		return function(){insertLine(tagOpen, sampleText, tagClose, true);}
	}
	if (action=='none') { return function(){}; }
	return (typeof action=='function') ? action : function(){insertTags(tagOpen, tagClose ,sampleText);}
}
 
/**
 创建一个图像按钮
 返回一个对象，包含该选单的id、img元素、
 */
function createEditButton(id,attrs){
	var action = attrs.action || 'defaultAction';
	var image = createElement("IMG",null,{
		'id'    :id,
		'width' :attrs.width||23,
		'height':22,
		'class' :"mw-toolbar-editbutton",
		'src'   :"http://upload.wikimedia.org/wikipedia/commons/" + attrs.src,
		'border':0,
		'alt'   :attrs.speedTip,
		'title' :attrs.speedTip,
		'styles':{'cursor': "pointer" },
		'events':{'click' : getInsertAction(action,attrs.tagOpen,attrs.sampleText,attrs.tagClose) }
	});
	var button={
		'element': image,
		'id'     : id,
		'type'   : 'button'
	};
	return button;
}
 
/**
 创建一个下拉选单
 返回一个对象，包含该选单的id、select元素、增加项目方法、删除项目方法
 */
function createDropdownMenu(id,title,attrs){
	/**
	 增加一个选单项
	 参数为该选单项的 （显示文字、值、前缀、示例文字、后缀、摘要文字、是否小修改、选单项动作）
	 默认动作是insertTags
	 */
	function add(text,value,tagOpen,sampleText,tagClose,summary,minor,action){
		var option;
		if(typeof value=="string"){
			tagOpen=tagOpen||'';
			sampleText=sampleText||'';
			tagClose=tagClose||'';
			dropMenu.actions[value]=getInsertAction(action,tagOpen,sampleText,tagClose);
			dropMenu.summary[value]=summary||'';
			dropMenu.minor[value]=!!minor;
			option=new Option(text,value);
		}
		else {option=new Option(text,text);}
		return menu.options[menu.options.length]=option;
	}
 
	attrs=typeof attrs=="object"?attrs:{};
	attrs.size=attrs.size||1;
	attrs.id=id;
	var menu=createElement("select",null,attrs);
	add(title);
 
	menu.onchange=function(){
		var form = document.getElementById('editform');
		var key=menu.options[menu.selectedIndex].value;
		var summary=dropMenu.summary[key];
		if(summary){form.wpSummary.value += ' '+summary;}
		var minor= dropMenu.minor[key];
		if(minor){form.wpMinoredit.checked = minor;}
		menu.selectedIndex=0;
		dropMenu.actions[key]();
	}
 
	var dropMenu={
		'id':id,
		'element':menu,
		'type':'dropdown',
		'actions':{},
		'summary':{},
		'minor':{},
		'add':add,
		'remove':function(value){
			if(typeof value=='number'){return menu.remove(value);}
			if(typeof value=='string'){
				for(var i=0;i<menu.options.length;i++){
					if(menu.options[i].value==value){return menu.remove(i);}
				}
			}
			if(typeof value=='object'){
				for(var i=0;i<menu.options.length;i++){
					if(menu.options[i]==value){return menu.remove(i);}
				}
			}
			return false;
		}
	};
	return dropMenu;
}
 
function checkExistEditID(id){
	if(mwCustomEditButtons[id]){
		id+="_r";
		mwCustomEditButtons.state="rID";
	}
	return id;
}
 
//加入按鈕;
function addEditButton(id,attrs){
	id=checkExistEditID(id);
	var button=createEditButton(id,attrs);
	mwCustomEditButtons.insert(button);
	return button;
}
 
//加入下拉菜單
function addDropdownMenu(id,text,options,attrs){
	id=checkExistEditID(id);
	var menu=createDropdownMenu(id,text,attrs);
	var option;
	for (var i=0;option=options[i];i++){
		menu.add(
			option.text,option.id,
			option.tagOpen,option.sampleText,option.tagClose,
			option.summary,option.minor,
			option.action||'defaultAction'
		);
	}
	mwCustomEditButtons.insert(menu);
	return menu;
}
 
//根據情況覆蓋mwInsertEditButton函數
var oldInsertEditButton=mwInsertEditButton;
function exInsertEditButton(parent,item) {
	parent.appendChild(item.element);
}
mwInsertEditButton=function (parent,item) {
	if(mwEditButtons.length==0){
		mwInsertEditButton=exInsertEditButton;
		return exInsertEditButton(parent,item);
	}else{
		mwInsertEditButton=oldInsertEditButton;
		return oldInsertEditButton(parent,item);
	}
}