gecko/editor/ui/dialogs/content/EdInsertTable.js

/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is Mozilla Communicator client code, released
 * March 31, 1998.
 *
 * The Initial Developer of the Original Code is
 * Netscape Communications Corporation.
 * Portions created by the Initial Developer are Copyright (C) 1998-1999
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either of the GNU General Public License Version 2 or later (the "GPL"),
 * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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//Cancel() is in EdDialogCommon.js
var gTableElement = null;
var gRows;
var gColumns;
var gActiveEditor;

// dialog initialization code
function Startup()
{
  gActiveEditor = GetCurrentTableEditor();
  if (!gActiveEditor)
  {
    dump("Failed to get active editor!\n");
    window.close();
    return;
  }

  try {
    gTableElement = gActiveEditor.createElementWithDefaults("table");
  } catch (e) {}

  if(!gTableElement)
  {
    dump("Failed to create a new table!\n");
    window.close();
    return;
  }
  gDialog.rowsInput    = document.getElementById("rowsInput");
  gDialog.columnsInput = document.getElementById("columnsInput");
  gDialog.widthInput = document.getElementById("widthInput");
  gDialog.borderInput = document.getElementById("borderInput");
  gDialog.widthPixelOrPercentMenulist = document.getElementById("widthPixelOrPercentMenulist");
  gDialog.OkButton = document.documentElement.getButton("accept");

  // Make a copy to use for AdvancedEdit
  globalElement = gTableElement.cloneNode(false);
  try {
    if (GetPrefs().getBoolPref("editor.use_css") && IsHTMLEditor()
        && !(gActiveEditor.flags & Components.interfaces.nsIPlaintextEditor.eEditorMailMask))
    {
      // only for Composer and not for htmlmail
      globalElement.setAttribute("style", "text-align: left;");
    }
  } catch (e) {}

  // Initialize all widgets with image attributes
  InitDialog();

  // Set initial number to 2 rows, 2 columns:
  // Note, these are not attributes on the table,
  //  so don't put them in InitDialog(),
  //  else the user's values will be trashed when they use 
  //  the Advanced Edit dialog
  gDialog.rowsInput.value = 2;
  gDialog.columnsInput.value = 2;

  // If no default value on the width, set to 100%
  if (gDialog.widthInput.value.length == 0)
  {
    gDialog.widthInput.value = "100";
    gDialog.widthPixelOrPercentMenulist.selectedIndex = 1;
  }

  SetTextboxFocusById("rowsInput");

  SetWindowLocation();
}

// Set dialog widgets with attribute data
// We get them from globalElement copy so this can be used
//   by AdvancedEdit(), which is shared by all property dialogs
function InitDialog()
{  
  // Get default attributes set on the created table:
  // Get the width attribute of the element, stripping out "%"
  // This sets contents of menu combobox list
  // 2nd param = null: Use current selection to find if parent is table cell or window
  gDialog.widthInput.value = InitPixelOrPercentMenulist(globalElement, null, "width", "widthPixelOrPercentMenulist", gPercent);
  gDialog.borderInput.value = globalElement.getAttribute("border");
}

function ChangeRowOrColumn(id)
{
  // Allow only integers
  forceInteger(id);

  // Enable OK only if both rows and columns have a value > 0
  var enable = gDialog.rowsInput.value.length > 0 && 
                              gDialog.rowsInput.value > 0 &&
                              gDialog.columnsInput.value.length > 0 &&
                              gDialog.columnsInput.value > 0;

  SetElementEnabled(gDialog.OkButton, enable);
  SetElementEnabledById("AdvancedEditButton1", enable);
}


// Get and validate data from widgets.
// Set attributes on globalElement so they can be accessed by AdvancedEdit()
function ValidateData()
{
  gRows = ValidateNumber(gDialog.rowsInput, null, 1, gMaxRows, null, null, true)
  if (gValidationError)
    return false;

  gColumns = ValidateNumber(gDialog.columnsInput, null, 1, gMaxColumns, null, null, true)
  if (gValidationError)
    return false;

  // Set attributes: NOTE: These may be empty strings (last param = false)
  ValidateNumber(gDialog.borderInput, null, 0, gMaxPixels, globalElement, "border", false);
  // TODO: Deal with "BORDER" without value issue
  if (gValidationError) return false;

  ValidateNumber(gDialog.widthInput, gDialog.widthPixelOrPercentMenulist,
                 1, gMaxTableSize, globalElement, "width", false);
  if (gValidationError)
    return false;

  return true;
}


function onAccept()
{
  if (ValidateData())
  {
    gActiveEditor.beginTransaction();
    try {
      gActiveEditor.cloneAttributes(gTableElement, globalElement);

      // Create necessary rows and cells for the table
      var tableBody = gActiveEditor.createElementWithDefaults("tbody");
      if (tableBody)
      {
        gTableElement.appendChild(tableBody);

        // Create necessary rows and cells for the table
        for (var i = 0; i < gRows; i++)
        {
          var newRow = gActiveEditor.createElementWithDefaults("tr");
          if (newRow)
          {
            tableBody.appendChild(newRow);
            for (var j = 0; j < gColumns; j++)
            {
              var newCell = gActiveEditor.createElementWithDefaults("td");
              if (newCell)
              {
                newRow.appendChild(newCell);
              }
            }
          }
        }
      }
      // Detect when entire cells are selected:
        // Get number of cells selected
      var tagNameObj = { value: "" };
      var countObj = { value: 0 };
      var element = gActiveEditor.getSelectedOrParentTableElement(tagNameObj, countObj);
      var deletePlaceholder = false;

      if (tagNameObj.value == "table")
      {
        //Replace entire selected table with new table, so delete the table
        gActiveEditor.deleteTable();
      }
      else if (tagNameObj.value == "td")
      {
        if (countObj.value >= 1)
        {
          if (countObj.value > 1)
          {
            // Assume user wants to replace a block of
            //  contiguous cells with a table, so
            //  join the selected cells
            gActiveEditor.joinTableCells(false);
          
            // Get the cell everything was merged into
            element = gActiveEditor.getFirstSelectedCell();
          
            // Collapse selection into just that cell
            gActiveEditor.selection.collapse(element,0);
          }

          if (element)
          {
            // Empty just the contents of the cell
            gActiveEditor.deleteTableCellContents();
          
            // Collapse selection to start of empty cell...
            gActiveEditor.selection.collapse(element,0);
            // ...but it will contain a <br> placeholder
            deletePlaceholder = true;
          }
        }
      }

      // true means delete selection when inserting
      gActiveEditor.insertElementAtSelection(gTableElement, true);

      if (deletePlaceholder && gTableElement && gTableElement.nextSibling)
      {
        // Delete the placeholder <br>
        gActiveEditor.deleteNode(gTableElement.nextSibling);
      }
    } catch (e) {}

    gActiveEditor.endTransaction();

    SaveWindowLocation();
    return true;
  }
  return false;
}