一个符号插入器中用到的js代码_javascript技巧

/**
* @author tin555
*/
function setHTML(html) {
ContentEdit.value = html;
eWebEditor.document.designMode="On";
eWebEditor.document.open();
eWebEditor.document.write(html);
eWebEditor.document.body.contentEditable="true";
eWebEditor.document.execCommand("2D-Position",true,true);
eWebEditor.document.execCommand("MultipleSelection", true, true);
eWebEditor.document.execCommand("LiveResize", true, true);
eWebEditor.document.close();
eWebEditor.document.body.onpaste = onPaste ;
//eWebEditor.document.body.onhelp = onHelp ;
//eWebEditor.document.body.ondragend = new Function("return doDragEnd();");
eWebEditor.document.onkeydown = new Function("return onKeyDown(eWebEditor.event);");
//eWebEditor.document.oncontextmenu=new Function("return showContextMenu(eWebEditor.event);");
//eWebEditor.document.onmousedown = new Function("return onMouseDown();");
//eWebEditor.document.onmouseup = new Function("return onMouseUp();");
}

function getHTML() {
var html;

html = eWebEditor.document.body.innerHTML;

if ((html.toLowerCase()=="")||(html.toLowerCase()=="")){
html = "";
}

return html;
}

function insertHTML(html) {

eWebEditor.focus();
if (eWebEditor.document.selection.type.toLowerCase() != "none"){
eWebEditor.document.selection.clear() ;
}
eWebEditor.document.selection.createRange().pasteHTML(html) ;
}

function appendHTML(html) {
if (eWebEditor.document.selection.type.toLowerCase() != "none"){
eWebEditor.document.selection.clear() ;
}
eWebEditor.document.body.innerHTML += html;

}

function doDragEnd(){
var oSelection = eWebEditor.document.selection.createRange();
var sRangeType = eWebEditor.document.selection.type;
if (sRangeType == "Control") {
var oControl = oSelection.item(0);
if (oControl.tagName == "IMG"){
oControl.src = FullPath2SetPath(oControl.src);
}
}
if (sRangeType == "Text") {
var els = eWebEditor.document.body.getElementsByTagName("IMG");
var oRngTemp = eWebEditor.document.body.createTextRange();
for(var i=0;i oRngTemp.moveToElementText(els(i));
if (oSelection.inRange(oRngTemp)){
els(i).src = FullPath2SetPath(els(i).src)
}
}
}

return true;
}

function onKeyDown(event){
var n_KeyCode = event.keyCode;
if (n_KeyCode==13){
return false;
}
}

var oResizing = new Object;
function onMouseDown(){
oResizing.El = null;
if (eWebEditor.document.selection.type == "Control") {
var oControlRange = eWebEditor.document.selection.createRange();
oResizing.El = oControlRange(0);
oResizing.W = oResizing.El.style.width;
oResizing.H = oResizing.El.style.height;
}

}

function GetClipboardHTML() {
var oDiv = document.getElementById("eWebEditor_Temp_HTML");
oDiv.innerHTML = "" ;
var oTextRange = document.body.createTextRange() ;
oTextRange.moveToElementText(oDiv) ;
oTextRange.execCommand("Paste") ;

var sData = oDiv.innerHTML ;
oDiv.innerHTML = "" ;

return sData ;
}

function cleanAndPaste( html ) {
html = html.replace(/<\/?SPAN[^>]*>/gi, "" );
html = html.replace(/<(\w[^>]*) class=([^ |>]*)([^>]*)/gi, "<$1$3") ;
html = html.replace(/<(\w[^>]*) style="([^"]*)"([^>]*)/gi, "<$1$3") ;
html = html.replace(/<(\w[^>]*) lang=([^ |>]*)([^>]*)/gi, "<$1$3") ;
html = html.replace(/<\\?\?xml[^>]*>/gi, "") ;
html = html.replace(/<\/?\w+:[^>]*>/gi, "") ;
html = html.replace(/ /, " " );

insertHTML( html ) ;
}
function onPaste() {
var sHTML = GetClipboardHTML() ;
var re = /<\w[^>]* class="?MsoNormal"?/gi ;
if ( re.test(sHTML)){
if ( confirm("你要粘贴的内容好象是从Word中拷出来的，是否要先清除Word格式再粘贴？") ){
cleanAndPaste( sHTML ) ;
return false ;
}
}
}

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