texteditor.js

axjx工具代码给大家交流

                                    //fire event manully
                                    linb(input).onChange();

                                    profile.box.setCaretTo(input, loc - 4 + 1, st);

                                    return false;
                                }
                            }
                            break;
                    }
                },
                afterKeyup:function(profile, e, src){
                    var key = linb.Event.getKey(e),k=key[0];
                    var me=arguments.callee, map=me.map || (me.map={space:1,enter:1,backspace:1,tab:1,"delete":1});
                    if(k.length==1 || map[k])
                        profile.$change=true;

                    if(profile.$change){
                        delete profile.$change;
                        profile.box._onchange(profile,src);
                    }
                }
            }
        },
        DataModel:{
            tabindex:{
                action:function(value){
                    if(this.domNode)
                        this.getSubNode('INPUT').attr('tabIndex',value);
                }
            },

            left:0,
            top:0,
            width:200,
            height:200,
            position:'absolute',
            disabled:{
                ini:false,
                action: function(v){
                    b.boxing().setReadonly(v);
                }
            },
            readonly:{
                ini:false,
                action: function(v){
                    this.getSubNode('INPUT').attr('readonly',v).css('background',v?'#EBEADB':'');
                }
            }
        },
        EventHandlers:{
            onChange:function(profile, oV, nV){}
        },
        RenderTrigger:function(){
            var ns=this;
            if(ns.properties.readonly)
                ns.boxing().setReadonly(true,true);

            var ie=linb.browser.ie,
                src=ns.getSubNode('INPUT').get(0),
                f=function(o){
                    //only for value in IE
                    if(ie && o.propertyName!='value')return true;

                    var src=ie?o.srcElement:this;
                    ns.box._onchange(ns,src);
                };
            if(ie){
                src.attachEvent("onpropertychange",f);
                src.attachEvent("ondrop",f);
                ns.$ondestory=function(){
                    src.detachEvent("onpropertychange",f);
                    src.detachEvent("ondrop",f);
                }
            }else{
                src.addEventListener("input",f,false);
                src.addEventListener("dragdrop",f,false);
                ns.$ondestory=function(){
                    src.removeEventListener("input",f,false);
                    src.addEventListener("dragdrop",f,false);
                }
                ns.getSubNode('BOX').$firfox2();
            }
        },
        _onchange:function(profile,src){
            if(profile.onChange){
                var v=src.id;
                _.resetRun(profile.$id+'_drop', function(){
                    v=linb.Dom.byId(v).value||'';
                    profile.$prevV=profile.$prevV||'';
                    if(v!=profile.$prevV){
                        profile.boxing().onChange(profile, profile.$prevV, v);
                        profile.$prevV=v;
                    }
                });
            }
        },
        _prepareData:function(profile){
            var d=arguments.callee.upper.call(this, profile);
            if(linb.browser.kde)
                d._css='resize:none;';
            return d;
        },
        //
        _onresize:function(profile,width,height){
            var size = arguments.callee.upper.apply(this,arguments);
            profile.getSubNode('BOX').cssSize(size);
//            size.width-=2;size.height-=2;
            profile.getSubNode('INPUT').cssSize(size);
        },
        //for
        insertAtCaret:function(profile, text) {
            var input = profile.getSubNode('INPUT'),
                scrollTop = input.scrollTop() || null,
                ret;
            //fire onChange manully
            input.onChange();
            //replace text
            ret=input.caret(text);
            //set cursor
    	    this.setCaretTo(input.get(0), ret||0, scrollTop);
    	},
        //set cursor to textarea
        setCaretTo:function(input, pos, scrollTop){
            input.focus()
            var s,c,h,o=linb([input]);

            //opera not support scrollTop in textarea
            if(_.isNumb(scrollTop))
                o.scrollTop(scrollTop);

            if(scrollTop===true){
                if(o.get(0).tagName.toLowerCase() == 'textarea' && o.scrollHeight() !== o.offsetHeight()){
                    s = o.attr('value').substr(0,pos);
                    c = o.clone().id('').css({visibility:'hidden',position:'absolute',left:5000+'px'}).attr('value',s);
                    linb('body').append(c);
                    h = Math.max((c.scrollHeight() > c.offsetHeight()) ? c.scrollHeight() - 30 : 0,0);
                    o.scrollTop(h);
                    c.remove();
                }
            }
            o.caret(pos,pos);
        },
        /*
        return array
        [0] char number before caret
        [1] line number of caret
        [2] absPos of caret
        [3] text before caret
        */
        getParas:function(profile){
            var o = profile.getSubNode('INPUT'), me=arguments.callee, reg = me.reg ||(me.reg=/\r\n/g);
            v = o.get(0).value;
            loc = o.caret();

            if(loc[0]<0)loc[0]=0;

            //for ie/opera
            var l=0, m = v.substr(0,loc[0]).match(reg);
            if(m)l=m.length;
            v = v.replace(reg,'\n');
            var txt = v.substr(0,loc[0]-l);

            var
            li = txt.lastIndexOf('\n') ,
            line = txt.substr(li+1, loc[0]-li),
            w=o.innerWidth(),
            bak1 = profile.getSubNode('BAK1'),
            bak2 = profile.getSubNode('BAK2')
            ;
            if(txt.charAt(txt.length-1)=='\n')txt+='*';

            bak2.width(w);
            var
            x = bak1.html(line.replace(/ /g,'&nbsp;'),false).width(),
            y = bak2.html(txt.replace(/\n/g,'<br />'),false).height() - o.scrollTop();

            if(x>w){
                bak2.html(line,false);
                var lbak = line;
                var bl = bak2.height();
                while(lbak){
                    //delete last words
                    lbak=lbak.replace(/ [^ ]*$/,'');
                    bak2.html(lbak,false);
                    if(bak2.height()!=bl)break;
                }
                lbak = line.substr(lbak.length, line.length-lbak.length);
                x = bak1.html(lbak,true).width();
            }

            bak1.html('',false);
            bak2.html('',false);

            var pos = profile.root.offset();
            pos.left+=x;
            pos.top+=y;
            return [loc[0],line,pos,o.get(0),txt];
        }
    }
});