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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
  <meta http-equiv="content-type"
 content="text/html; charset=ISO-8859-1">
  <title>Midas Specification</title>
  <meta name="author" content="Kathleen Brade">
</head>
<body>
Last revised:&nbsp; May 30, 2003<br>
<br>
This document describes the rich text editing controls for web pages
available in recent mozilla browsers.<br>
<br>
<h1> Enabling Rich Text Editing in your web page:</h1>
<div style="margin-left: 40px;">Given a document, you can add the
attribute
"designMode" and set it to "on" to get an editable document. &nbsp;For
example,
in JavaScript, if you have an iframe with an id of 'edit', you can get
its
contentDocument and set designMode to "on" like this:<br>
<div style="margin-left: 40px;"><code>document.getElementById("edit").contentDocument.designMode="on";</code>
</div>
<br>
Right now, you can't completely turn off editing by setting designMode
to
"off." &nbsp;Setting designMode to "off" will prevent certain
operations
from being handled but typing and other actions are still possible.<br>
</div>
<br>
<h1>Invoking Commands:</h1>
<h2>execCommand<br>
</h2>
<div style="margin-left: 40px;">Given a document that has rich text
editing
enabled (see above),
you can invoke specific commands on the document by calling execCommand
with
3 parameters. &nbsp;For example, in JavaScript, if you have an editable
document,
you can invoke the bold command by calling this:<br>
<div style="margin-left: 40px;"><code>editableDocument.execCommand("Bold",
false, null); </code></div>
Notes: &nbsp;If you haven't set designMode to "On", you will get an
error.
&nbsp;This could also happen if you call execCommand with the wrong
document.<br>
<br>
There are 3 required parameters for execCommand:<br>
<ol>
  <li>command string</li>
  <li>boolean flag for showing UI</li>
  <li>value string</li>
</ol>
The first parameter is a string which contains the command. &nbsp;The
second
parameter is a boolean flag. &nbsp;If it is set to true, you will get
an
error (NS_ERROR_NOT_IMPLEMENTED). &nbsp;The third parameter is a string
which
is the value. &nbsp;Some commands will require details such as the
particular
size you want to set when setting a font size.<br>
<br>
The section on Supported Commands will document each command and any
corresponding values needed.<br>
</div>
<div style="margin-left: 40px;"> </div>
<br>
<h2>queryCommandEnabled</h2>
<blockquote>This command operates on the editable document. &nbsp;There
is
one required parameter (the command string). &nbsp;The result is a
boolean
which is true if the command is can be done given the current selection
and/or
caret position. &nbsp;The result is false if the command should not be
invoked
(execCommand) given the current selection and/or caret position. <br>
</blockquote>
<br>
<h2>queryCommandState</h2>
<blockquote>This section needs to be written.&nbsp; It can be called
similarly to IE implementation.<br>
</blockquote>
<br>
<h2>queryCommandValue</h2>
<blockquote> This section needs to be written.&nbsp; It can be called
similarly to IE implementation.
</blockquote>
<br>
<h1>Supported Commands:</h1>
<div style="margin-left: 40px;">The following list of commands is
presented
in alphabetical order. &nbsp;The commands may be mixed case or whatever
makes
your code more readable.<br>
<br>
<table cellpadding="2" cellspacing="2" border="1"
 style="text-align: left; width: 100%;">
  <tbody>
    <tr>
      <td style="vertical-align: top;">command<br>
      </td>
      <td style="vertical-align: top;">value<br>
      </td>
      <td style="vertical-align: top;">explanation / behavior<br>
      </td>
    </tr>
    <tr>
      <td style="vertical-align: top;">backcolor<br>
      </td>
      <td style="vertical-align: top;">????<br>
      </td>
      <td style="vertical-align: top;">This command will set the
background color of the document.</td>
    </tr>
    <tr>
      <td style="vertical-align: top;">bold<br>
      </td>
      <td style="vertical-align: top;">none<br>
      </td>
      <td style="vertical-align: top;">If there is no selection, the
insertion
point will set bold for subsequently typed characters. &nbsp;<br>
      <br>
If there is a selection and all of the characters are already bold, the
bold
will be removed. &nbsp;Otherwise, all selected characters will become
bold.<br>
      </td>
    </tr>
    <tr>
      <td style="vertical-align: top;">copy<br>
      </td>
      <td style="vertical-align: top;">none<br>
      </td>
      <td style="vertical-align: top;">If there is a selection, this
command
will copy the selection to the clipboard. &nbsp;If there isn't a
selection,
nothing will happen.<br>
      <br>
note: this command won't work without setting a pref or using signed
JS.&nbsp; See:
http://www.mozilla.org/editor/midasdemo/securityprefs.html<br>
      <br>
note: &nbsp;the shortcut key will automatically trigger this command
(typically
accel-C) with or without the signed JS or any code on the page to
handle it.<br>
      </td>
    </tr>
    <tr>
      <td valign="top">createlink<br>
      </td>
      <td valign="top">url (href)<br>
      </td>
      <td valign="top">This command will not do anything if no
selection
is made. &nbsp;If there is a selection, a link will be inserted around
the
selection with the url parameter as the href of the link.<br>
      </td>
    </tr>
    <tr>
      <td style="vertical-align: top;">cut<br>
      </td>
      <td style="vertical-align: top;">none<br>
      </td>
      <td style="vertical-align: top;">If there is a selection, this
command
will copy the selection to the clipboard and remove the selection from
the
edit control. &nbsp;If there isn't a selection, nothing will happen.<br>
      <br>
note: this command won't work without setting a pref or using signed
JS.&nbsp; See:
http://www.mozilla.org/editor/midasdemo/securityprefs.html<br>
      <br>
note: &nbsp;the shortcut key will automatically trigger this command
(typically
accel-X) with or without the signed JS or any code on the page to
handle it.<br>
      </td>
    </tr>
    <tr>
      <td style="vertical-align: top;">decreasefontsize<br>
      </td>
      <td style="vertical-align: top;">none<br>
      </td>
      <td style="vertical-align: top;">This command will add a
&lt;small&gt; tag around selection or at insertion point.<br>
      </td>
    </tr>
    <tr>
      <td valign="top">delete<br>
      </td>
      <td valign="top">none<br>
      </td>
      <td valign="top">This command will delete all text and objects
that
are selected.<br>
      </td>
    </tr>
    <tr>
      <td valign="top">fontname<br>
      </td>
      <td valign="top">????<br>
      </td>
      <td valign="top">This command will set the fontface for a
selection
or at the insertion point if there is no selection.<br>
      </td>
    </tr>
    <tr>
      <td valign="top">fontsize<br>
      </td>
      <td valign="top">????<br>
      </td>
      <td valign="top">This command will set the fontsize for a
selection
or at the insertion point if there is no selection.<br>
      </td>
    </tr>
    <tr>
      <td valign="top">forecolor<br>
      </td>
      <td valign="top">????<br>
      </td>
      <td valign="top">This command will set the text color of the
selection or at the insertion
point.<br>
      </td>
    </tr>
    <tr>
      <td valign="top">formatblock<br>
      </td>
      <td valign="top">&lt;h1&gt;<br>
&lt;h2&gt;<br>
&lt;h3&gt;<br>
&lt;h4&gt;<br>
&lt;h5&gt;<br>
&lt;h6&gt;<br>
&lt;pre&gt;<br>
&lt;address&gt;<br>
&lt;p&gt;<br>
p<br>
[this list may not be completely]<br>
      </td>
      <td valign="top"><br>
      </td>
    </tr>
    <tr>
      <td valign="top">heading<br>
      </td>
      <td valign="top">&lt;h1&gt;<br>
&lt;h2&gt;<br>
&lt;h3&gt;<br>
&lt;h4&gt;<br>
&lt;h5&gt;<br>
&lt;h6&gt;<br>
      </td>
      <td valign="top"><br>
      </td>
    </tr>
    <tr>
      <td style="vertical-align: top;">hilitecolor<br>
      </td>
      <td style="vertical-align: top;">????<br>
      </td>
      <td style="vertical-align: top;">This command will set the hilite
color of the selection or at the insertion point.&nbsp; It only works
with usecss enabled.<br>
      </td>
    </tr>
    <tr>
      <td style="vertical-align: top;">increasefontsize<br>
      </td>
      <td style="vertical-align: top;">none<br>
      </td>
      <td style="vertical-align: top;">This command will add a
&lt;big&gt; tag around selection or at insertion point.</td>
    </tr>
    <tr>
      <td style="vertical-align: top;">indent<br>
      </td>
      <td style="vertical-align: top;">none<br>
      </td>
      <td style="vertical-align: top;">Indent the block where the caret
is
located.<br>
      </td>
    </tr>
    <tr>
      <td valign="top">inserthorizontalrule<br>
      </td>
      <td valign="top">none<br>
      </td>
      <td valign="top">This command will insert a horizontal rule
(line)
at the insertion point.<br>
      <br>
Does it delete the selection?<br>
      </td>
    </tr>
    <tr>
      <td style="vertical-align: top;">inserthtml<br>
      </td>
      <td style="vertical-align: top;">valid html string<br>
      </td>
      <td style="vertical-align: top;">This command will insert the
given html into the &lt;body&gt; in place of the current selection or
at the caret location.<br>
      </td>
    </tr>
    <tr>
      <td valign="top">insertimage<br>
      </td>
      <td valign="top">url (src)<br>
      </td>
      <td valign="top">This command will insert an image (referenced by
url)
at the insertion point.<br>
      <br>
Does it delete the selection?<br>
      </td>
    </tr>
    <tr>
      <td valign="top">insertorderedlist<br>
      </td>
      <td valign="top">none<br>
      </td>
      <td valign="top"><br>
      </td>
    </tr>
    <tr>
      <td valign="top">insertunorderedlist<br>
      </td>
      <td valign="top">none<br>
      </td>
      <td valign="top"><br>
      </td>
    </tr>
    <tr>
      <td style="vertical-align: top;">insertparagraph<br>
      </td>
      <td style="vertical-align: top;">none<br>
      </td>
      <td style="vertical-align: top;"><br>
      </td>
    </tr>
    <tr>
      <td style="vertical-align: top;">italic<br>
      </td>
      <td style="vertical-align: top;">none<br>
      </td>
      <td style="vertical-align: top;">If there is no selection, the
insertion
point will set italic for subsequently typed characters. &nbsp;<br>
      <br>
If there is a selection and all of the characters are already italic,
the
italic will be removed. &nbsp;Otherwise, all selected characters will
become
italic.</td>
    </tr>
    <tr>
      <td valign="top">justifycenter<br>
      </td>
      <td valign="top">none<br>
      </td>
      <td valign="top"><br>
      </td>
    </tr>
    <tr>
      <td valign="top">justifyfull<br>
      </td>
      <td valign="top">none<br>
      </td>
      <td valign="top"><br>
      </td>
    </tr>
    <tr>
      <td valign="top">justifyleft<br>
      </td>
      <td valign="top">none<br>
      </td>
      <td valign="top"><br>
      </td>
    </tr>
    <tr>
      <td valign="top">justifyright<br>
      </td>
      <td valign="top">none<br>
      </td>
      <td valign="top"><br>
      </td>
    </tr>
    <tr>
      <td style="vertical-align: top;">outdent<br>
      </td>
      <td style="vertical-align: top;">none<br>
      </td>
      <td style="vertical-align: top;">Outdent the block where the
caret
is located. &nbsp;If the block is not indented prior to calling
outdent,
nothing will happen.<br>
      <br>
note: &nbsp;is an error thrown if no outdenting is done?<br>
      </td>
    </tr>
    <tr>
      <td style="vertical-align: top;">paste<br>
      </td>
      <td style="vertical-align: top;">none<br>
      </td>
      <td style="vertical-align: top;">This command will paste the
contents of the clipboard at the location of
the caret. &nbsp;If there is a selection, it will be deleted prior to
the
insertion of the clipboard's contents.<br>
      <br>
note: this command won't work without setting a pref or using signed
JS.&nbsp; <br>
      <tt>user_pref("capability.policy.policynames", "allowclipboard");</tt><tt>
user_pref("capability.policy.allowclipboard.Clipboard.paste",
"allAccess");<br>
      </tt>See:
http://www.mozilla.org/editor/midasdemo/securityprefs.html<br>
      <br>
note: &nbsp;the shortcut key will automatically trigger this command
(typically
accel-V) with or without the signed JS or any code on the page to
handle it.</td>
    </tr>
    <tr>
      <td style="vertical-align: top;">readonly<br>
      </td>
      <td style="vertical-align: top;">true<br>
false<br>
      </td>
      <td style="vertical-align: top;">This command will make the
editor readonly (true) or editable (false).&nbsp; Anticipated usage is
for temporarily disabling input while something else is occurring
elsewhere in the web page.<br>
      </td>
    </tr>
    <tr>
      <td style="vertical-align: top;">redo<br>
      </td>
      <td style="vertical-align: top;">none<br>
      </td>
      <td style="vertical-align: top;">This command will redo the
previous
undo action. &nbsp;If undo was not the most recent action, this command
will
have no effect.<br>
      <br>
note: &nbsp;the shortcut key will automatically trigger this command
(typically
accel-shift-Z)</td>
    </tr>
    <tr>
      <td valign="top">removeformat<br>
      </td>
      <td valign="top">none<br>
      </td>
      <td valign="top"><br>
      </td>
    </tr>
    <tr>
      <td style="vertical-align: top;">selectall<br>
      </td>
      <td style="vertical-align: top;">none<br>
      </td>
      <td style="vertical-align: top;">This command will select all of
the
contents within the editable area.<br>
      <br>
note: &nbsp;the shortcut key will automatically trigger this command
(typically
accel-A)<br>
      </td>
    </tr>
    <tr>
      <td valign="top">strikethrough<br>
      </td>
      <td valign="top">none<br>
      </td>
      <td valign="top">If there is no selection, the insertion point
will
set strikethrough for subsequently typed characters. &nbsp;<br>
      <br>
If there is a selection and all of the characters are already striked,
the
strikethrough will be removed. Otherwise, all selected characters will
have
a line drawn through them.<br>
      </td>
    </tr>
    <tr>
      <td valign="top">subscript<br>
      </td>
      <td valign="top">none<br>
      </td>
      <td valign="top">If there is no selection, the insertion point
will
set subscript for subsequently typed characters. &nbsp;<br>
      <br>
If there is a selection and all of the characters are already
subscripted,
the subscript will be removed. Otherwise, all selected characters will
be
drawn slightly lower than normal text.<br>
      </td>
    </tr>
    <tr>
      <td valign="top">superscript<br>
      </td>
      <td valign="top">none<br>
      </td>
      <td valign="top">If there is no selection, the insertion point
will
set superscript for subsequently typed characters. &nbsp;<br>
      <br>
If there is a selection and all of the characters are already
superscripted,
the superscript will be removed. Otherwise, all selected characters
will
be drawn slightly higher than normal text<br>
      </td>
    </tr>
    <tr>
      <td style="vertical-align: top;">underline<br>
      </td>
      <td style="vertical-align: top;">none<br>
      </td>
      <td style="vertical-align: top;">If there is no selection, the
insertion
point will set underline for subsequently typed characters. &nbsp;<br>
      <br>
If there is a selection and all of the characters are already
underlined,
the underline will be removed. Otherwise, all selected characters will
become
underlined.</td>
    </tr>
    <tr>
      <td style="vertical-align: top;">undo<br>
      </td>
      <td style="vertical-align: top;">none<br>
      </td>
      <td style="vertical-align: top;">This command will undo the
previous
action. &nbsp;If no action has occurred in the document, then this
command
will have no effect.<br>
      <br>
note: &nbsp;the shortcut key will automatically trigger this command
(typically
accel-Z)<br>
      </td>
    </tr>
    <tr>
      <td valign="top">unlink<br>
      </td>
      <td valign="top">none<br>
      </td>
      <td valign="top"><br>
      </td>
    </tr>
    <tr>
      <td style="vertical-align: top;">useCSS<br>
      </td>
      <td style="vertical-align: top;">true<br>
false<br>
      </td>
      <td style="vertical-align: top;">This command is used for
toggling the format of generated content.&nbsp; By default (at least
today), this is true.&nbsp; An example of the differences is that the
"bold" command will generate &lt;b&gt; if the useCSS command is false
and generate css style attribute if the useCSS command is true.<br>
      </td>
    </tr>
  </tbody>
</table>
<br>
</div>
<br>
</body>
</html>