html_editor.js

java 写的一个新闻发布系统

                addText="<DIV align=\"left\">"+txt+"</DIV>";
            }
        }
    }
    if(Action==13) {
        if (selectedText != "") {
            document.mainForm.Text1.value = document.mainForm.Text1.value.replace(selectedTextFlag, "<DIV align=\"center\">" + selectedText + "</DIV>");
        } else if (caretPos && caretPos.text != document.mainForm.Text1.value) {
            txt=prompt("Text to align center","Text");
            if(txt!=null) {
                caretPos.text = caretPos.text.charAt(caretPos.text.length - 1) == " " ? "<DIV align=\"center\">" + txt + "</DIV> " : "<DIV align=\"center\">" + txt + "</DIV>";
            }
        } else {
            txt=prompt("Text to align center","Text");
            if(txt!=null) {
                addText="<DIV align=\"center\">"+txt+"</DIV>";
            }
        }
    }
    if(Action==14) {
        if (selectedText != "") {
            document.mainForm.Text1.value = document.mainForm.Text1.value.replace(selectedTextFlag, "<DIV align=\"right\">" + selectedText + "</DIV>");
        } else if (caretPos && caretPos.text != document.mainForm.Text1.value) {
            txt=prompt("Text to align right","Text");
            if(txt!=null) {
                caretPos.text = caretPos.text.charAt(caretPos.text.length - 1) == " " ? "<DIV align=\"right\">" + txt + "</DIV> " : "<DIV align=\"right\">" + txt + "</DIV>";
            }
        } else {
            txt=prompt("Text to align right","Text");
            if(txt!=null) {
                addText="<DIV align=\"right\">"+txt+"</DIV>";
            }
        }
    }
    if(Action==17) {
        if (selectedText != "") {
            document.mainForm.Text1.value = document.mainForm.Text1.value.replace(selectedTextFlag, "<P align=\"justify\">" + selectedText + "</P>");
        } else if (caretPos && caretPos.text != document.mainForm.Text1.value) {
            txt=prompt("Text to align justify","Text");
            if(txt!=null) {
                caretPos.text = caretPos.text.charAt(caretPos.text.length - 1) == " " ? "<P align=\"justify\">" + txt + "</P> " : "<P align=\"justify\">" + txt + "</P>";
            }
        } else {
            txt=prompt("Text to align justify","Text");
            if(txt!=null) {
                addText="<P align=\"justify\">"+txt+"</P>";
            }
        }
    }
    if (addText != null && addText != "") {
        displayHTML(document.mainForm.Text1.value + addText);
        document.mainForm.Text1.value+=addText;
    } else {
        displayHTML(document.mainForm.Text1.value);
    }
    if (document.all && selectedText != "") {
        temp = document.mainForm.Text1.value;
        document.mainForm.Text1.value = "";
        document.mainForm.Text1.select();
        document.mainForm.Text1.blur();
        document.mainForm.Text1.value = temp;
        selectedText = "";
    }
    document.mainForm.Text1.focus();
}

function addTable(imageName) {
    restoreImages(imageName);
    Undo = document.mainForm.Text1.value;
    if (document.mainForm.Text1.createTextRange && document.mainForm.Text1.caretPos) {
        var caretPos = document.mainForm.Text1.caretPos;
    }
    var x = prompt("How many rows?", "");
    if (x == null || x == "" || x < 0) x = 0;
    var y = (x != 0) ? prompt("How many columns?", "") : 0;
    if (y == null || y == "" || y < 0) y = 0;
    if ((x * y) != 0) {
      var tmptag = (confirm("Do you want a table border?")) ? " border=\"1\"" : " border=\"0\"";
      var addText = "\n<TABLE" + tmptag + ">";
      for (var i=0; i<x; i++) {
        addText += "\n<TR>\n";
        for (var j=0; j < y; j++) {
          addText += "  <TD>" + (i*y + j + 1) + "</TD>\n";
        }
        addText += "</TR>";
      }
      addText += "\n</TABLE>\n";
      if (caretPos && caretPos.text != document.mainForm.Text1.value) {
        caretPos.text = caretPos.text.charAt(caretPos.text.length - 1) == " " ? addText + " " : addText;
      } else {
        document.mainForm.Text1.value += addText;
      }
      displayHTML(document.mainForm.Text1.value);
    }
    document.mainForm.Text1.focus();
    selectedText = "";
}


// Define more general HTML tags

function htmlTag (insertmode, inserttext, tagstart, tagmiddle, tagend) {
    this.insertmode = insertmode;
    this.inserttext = inserttext;
    this.tagstart = tagstart;
    this.tagmiddle = tagmiddle;
    this.tagend = tagend;
}

OL = new htmlTag ( 3, "Enter the first list item", "\n<OL>\n  <LI>", "\n  <LI>", "\n</OL>\n" );
OL.inserttext2 = "Enter next list item:"

UL = new htmlTag ( 3, "Enter the first list item", "\n<UL>\n  <LI>", "\n  <LI>", "\n</UL>\n" );
UL.inserttext2 = "Enter next list item:"

// Start tag and check for user input by calling htmlPrompt

function addHTML (selection, imageName) {
    restoreImages(imageName);
    Undo = document.mainForm.Text1.value;
    if (document.mainForm.Text1.createTextRange && document.mainForm.Text1.caretPos) {
        var caretPos = document.mainForm.Text1.caretPos;
    }
    var addText = selection.tagstart;

    var tmp = htmlPrompt (selection);
    if (tmp != null) {
        addText += tmp + selection.tagend;
        if (caretPos && caretPos.text != document.mainForm.Text1.value) {
            caretPos.text = caretPos.text.charAt(caretPos.text.length - 1) == " " ? addText + " " : addText;
        } else {
            document.mainForm.Text1.value += addText;
        }
        displayHTML(document.mainForm.Text1.value);
    }
    document.mainForm.Text1.focus();
    selectedText = "";
}

// Prompt for user input and return string or null

function htmlPrompt (selection) {
    if (selection.insertmode == 2)
      return prompt(selection.inserttext, "");

    if (selection.insertmode == 3) {
      var i = prompt (selection.inserttext, "");
      if ((i != null) && (i != "")) {
        var addText = i + "</LI>";
        i = prompt(selection.inserttext2, "");
        while ((i != null) && (i != "")) {
          addText += selection.tagmiddle + i + "</LI>";
          i = prompt(selection.inserttext2, "");
        }
      }
      return addText;
    }

    if (selection.insertmode == 4) {
      var count = 0;
      var addText = "";
      var i = prompt(selection.inserttext, "");
      var j = prompt(selection.inserttext2, "");
      while ((i != null) && (i != "") && (j != null) && (j != "")) {
        if (++count > 1)
          addText += selection.tagmiddle2;
        addText += i + selection.tagmiddle + j;
        i = prompt(selection.inserttext, "");
        j = prompt(selection.inserttext2, "");
      }
      return addText;
    }

    if (selection.insertmode == 5) {
      var i = prompt(selection.inserttext, "http://");
      if (i != null) {
        if (i == "") i = selection.text;
        var j = prompt(selection.inserttext2, "click here");
        if (j != null)
          return (i + selection.tagmiddle + j);
      }
    }
    return null;
}

function resetPage(imageName) {
    restoreImages(imageName);
    if(confirm("Reset the page?")) {
        document.mainForm.Text1.value="";
        displayHTML("");
    }
    document.mainForm.Text1.focus();
}

function displayHTML(txt) {
    ViewHTML.setHTML(txt);
    setHiddenValue(txt);
}

function undo(imageName) {
    restoreImages(imageName);
    Redo = document.mainForm.Text1.value
    document.mainForm.Text1.value = Undo;
    Undo = Redo;
    displayHTML(document.mainForm.Text1.value);
    document.mainForm.Text1.focus();
}