Dreamweaver 扩展开发：文档路径等信息的处理

//browseFile(fieldToStoreURL){//getFullPath(filePathURL){//getSimpleFileName() {//fixUpPath(docURL,siteURL,savedPath)//fileIsCurrentlyOpen(absoluteFileURL);//Invokes dialog to allow user to select filename. Puts value in text input.// The optional flag stripParameters will remove anything after a question// mark if it is set to truefunction browseFile(fieldToStoreURL, stripParameters) {  var fileName = "";  fileName = browseForFileURL(); //returns a local filename  if (stripParameters) {    var index = fileName.indexOf("?");    if (index != -1) {      fileName = fileName.substring(0,index);    }  }  if (fileName) fieldToStoreURL.value = fileName;}//function: getFullPath//description: converts relative paths into full paths that start with//file://///Why this is important: A user is PRompted for a location to save//a file. Dreamweaver generates a path that is relative to the currently//opened document. If a developer tries to use this URL in DWfile, it will//not work because dreamweaver assumes the path to be relative to the //extension file. However, full paths will work//Note that this function sometimes returns a full path that is indirect://For instance: file:///C|/MyWebSite/Hobbies/Cooking/.../Hobbies/Images/cake.gif//However, the user never sees this file path.////Arguments://filePathURL - doc-relative,site-relative, or absolute file pathfunction getFullPath(filePathURL){   var retVal = (filePathURL)?filePathURL:'';   var docURL;   var dotDotSlash;   var inMiddle;    if (retVal != ''){      //if the document path is relative, for example,My Docs/My Schedule.htm     //create an absolute path.      if (  filePathURL.indexOf("file://")!=0  ){             //if doc relative...       if ( filePathURL.charAt(0)!="/" ){         docURL = dreamweaver.getDocumentDOM('document').URL;         dotDotSlash = filePathURL.indexOf('../');         while (dotDotSlash == 0){           docURL = docURL.substring(0,docURL.lastIndexOf("/"));           filePathURL = filePathURL.substring(3);           dotDotSlash = filePathURL.indexOf('../');         }          retVal = docURL.substring(0,docURL.lastIndexOf("/")+1) + filePathURL;        //else path is site relative...       } else {         retVal = dreamweaver.getSiteRoot() + filePathURL.substring(1);       }      }   }     return retVal;}//Returns the simple file name for the current documentfunction getSimpleFileName() {  var filePath = dreamweaver.getDocumentPath("document"); //get full path of file  var lastSlash = filePath.lastIndexOf("/");  if (lastSlash != -1) filePath = filePath.substring(lastSlash+1);  return filePath;}// fixUpPath()// Given the location of the current document, the site root, // and the path to a file or folder (expressed as a file:// URL), // returns one of the following:// the file:// URL passed in, if the document has not been saved// the file:// URL passed in, if the document is not in the current site// a document-relative path, if the document has been saved in the current sitefunction fixUpPath(docURL,siteURL,savedPath){   var retVal = "";   if (docURL == "" || (docURL != "" && savedPath.indexOf(dw.getSiteRoot()) == -1)){      retVal = savedPath;   }else{     docURL = docURL.substring(0,docURL.lastIndexOf('/')+1);      var endStr = (docURL.length > savedPath.length)?savedPath.length:docURL.length;      var commonStr = "";       for (var i=0; i < endStr; i++){      if (docURL.charAt(i) == savedPath.charAt(i)){        commonStr += docURL.charAt(i);      }else{        break;      }    }    var whatsLeft = docURL.substring(commonStr.length);    var slashPos = whatsLeft.indexOf('/');    var slashCount = 0;    var dotDotSlash = "";    while (slashPos != -1){      slashCount++;      slashPos = whatsLeft.indexOf('/',slashPos+1);    }       for (var j=1; j <= slashCount; j++){      dotDotSlash += '../';    }    retVal = dotDotSlash + savedPath.substring(commonStr.length);  }   return retVal;}// function: fileIsCurrentlyOpen// description: given a file path, determines if the file is currently open// argument: absoluteFilePath -- an absolute file pathfunction fileIsCurrentlyOpen(absoluteFilePath) {  var fileObj = dw.getDocumentDOM(absoluteFilePath);  var openFilesArr = dw.getDocumentList();  var fileIsOpen = false, nOpenFiles,i;    // openFilesArr is an array of currently open document objects  if (openFilesArr.length && openFilesArr.length > 0) {    nOpenFiles = openFilesArr.length;    for (i=0;i<nOpenFiles;i++) {      if (fileObj == openFilesArr[i]) {        fileIsOpen = true;        break;      }    }    }  return fileIsOpen;}

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