editor/nsIHTMLEditor.idl
author Wes Kocher <wkocher@mozilla.com>
Wed, 20 Jul 2016 15:40:33 -0700
changeset 348052 d2c17679b215bb340b1b8051c74526f6301c6253
parent 278522 f2a922fd623e11743f1f2d5379799dab857e4893
child 360057 37ed8d70f7b2c0a944903d2d4b1e4a5e5ac6a92c
permissions -rw-r--r--
Backed out 5 changesets (bug 1287623) for static build bustage CLOSED TREE Backed out changeset a48daec87ec9 (bug 1287623) Backed out changeset 248153344e15 (bug 1287623) Backed out changeset 8aa409c9b1ce (bug 1287623) Backed out changeset 602d4d88e806 (bug 1287623) Backed out changeset 114da8bdc0b0 (bug 1287623)

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "nsISupports.idl"
#include "domstubs.idl"

interface nsIAtom;
interface nsIContent;
interface nsISupportsArray;
interface nsISelection;
interface nsIContentFilter;

%{C++
namespace mozilla {
namespace dom {
class Element;
}
}
%}

[ptr] native Element (mozilla::dom::Element);

[scriptable, uuid(87ee993e-985f-4a43-a974-0d9512da2fb0)]
interface nsIHTMLEditor : nsISupports
{
%{C++
  typedef short EAlignment;
%}

  // used by GetAlignment()
  const short eLeft = 0;
  const short eCenter = 1;
  const short eRight = 2;
  const short eJustify = 3;


  /* ------------ Inline property methods -------------- */


  /**
   * AddDefaultProperty() registers a default style property with the editor
   *
   * @param aProperty   the property to set by default
   * @param aAttribute  the attribute of the property, if applicable.
   *                    May be null.
   *                    Example: aProperty="font", aAttribute="color"
   * @param aValue      if aAttribute is not null, the value of the attribute.
   *                    Example: aProperty="font", aAttribute="color",
   *                             aValue="0x00FFFF"
   */
  void addDefaultProperty(in nsIAtom aProperty,
                          in AString aAttribute,
                          in AString aValue);

  /**
   * RemoveDefaultProperty() unregisters a default style property with the editor
   *
   * @param aProperty   the property to remove from defaults
   * @param aAttribute  the attribute of the property, if applicable.
   *                    May be null.
   *                    Example: aProperty="font", aAttribute="color"
   * @param aValue      if aAttribute is not null, the value of the attribute.
   *                    Example: aProperty="font", aAttribute="color",
   *                             aValue="0x00FFFF"
   */
  void removeDefaultProperty(in nsIAtom aProperty,
                             in AString aAttribute,
                             in AString aValue);

  /**
   * RemoveAllDefaultProperties() unregisters all default style properties with the editor
   *
   */
  void removeAllDefaultProperties();

  /**
   * SetInlineProperty() sets the aggregate properties on the current selection
   *
   * @param aProperty   the property to set on the selection
   * @param aAttribute  the attribute of the property, if applicable.
   *                    May be null.
   *                    Example: aProperty="font", aAttribute="color"
   * @param aValue      if aAttribute is not null, the value of the attribute.
   *                    May be null.
   *                    Example: aProperty="font", aAttribute="color",
   *                             aValue="0x00FFFF"
   */
  void setInlineProperty(in nsIAtom aProperty,
                         in AString aAttribute,
                         in AString aValue);

  /**
   * getInlineProperty() gets aggregate properties of the current selection.
   * All object in the current selection are scanned and their attributes are
   * represented in a list of Property object.
   *
   * @param aProperty   the property to get on the selection
   * @param aAttribute  the attribute of the property, if applicable.
   *                    May be null.
   *                    Example: aProperty="font", aAttribute="color"
   * @param aValue      if aAttribute is not null, the value of the attribute.
   *                    May be null.
   *                    Example: aProperty="font", aAttribute="color",
   *                             aValue="0x00FFFF"
   * @param aFirst      [OUT] PR_TRUE if the first text node in the
   *                          selection has the property
   * @param aAny        [OUT] PR_TRUE if any of the text nodes in the
   *                          selection have the property
   * @param aAll        [OUT] PR_TRUE if all of the text nodes in the
   *                          selection have the property
   */
  void getInlineProperty(in nsIAtom aProperty,
                         in AString  aAttribute,
                         in AString  aValue,
                         out boolean aFirst,
                         out boolean aAny,
                         out boolean aAll);

  AString getInlinePropertyWithAttrValue(in nsIAtom aProperty,
                                           in AString  aAttribute,
                                           in AString  aValue,
                                           out boolean aFirst,
                                           out boolean aAny,
                                           out boolean aAll);

  /**
   * removeAllInlineProperties() deletes all the inline properties from all
   * text in the current selection.
   */
  void removeAllInlineProperties();


  /**
   * removeInlineProperty() deletes the properties from all text in the current
   * selection.  If aProperty is not set on the selection, nothing is done.
   *
   * @param aProperty   the property to remove from the selection
   *                    All atoms are for normal HTML tags (e.g.:
   *                    nsIEditorProperty::font) except when you want to
   *                    remove just links and not named anchors.
   *                    For that, use nsIEditorProperty::href
   * @param aAttribute  the attribute of the property, if applicable.
   *                    May be null.
   *                    Example: aProperty=nsIEditorProptery::font,
   *                    aAttribute="color"
   *                    nsIEditProperty::allAttributes is special.
   *                    It indicates that all content-based text properties
   *                    are to be removed from the selection.
   */
  void removeInlineProperty(in nsIAtom aProperty, in AString  aAttribute);

  /**
   *  Increase font size for text in selection by 1 HTML unit
   *  All existing text is scanned for existing <FONT SIZE> attributes
   *  so they will be incremented instead of inserting new <FONT> tag
   */
  void increaseFontSize();

  /**
   *  Decrease font size for text in selection by 1 HTML unit
   *  All existing text is scanned for existing <FONT SIZE> attributes
   *  so they will be decreased instead of inserting new <FONT> tag
   */
  void decreaseFontSize();

  /* ------------ HTML content methods -------------- */

  /**
   * Tests if a node is a BLOCK element according the the HTML 4.0 DTD.
   *   This does NOT consider CSS effect on display type
   *
   * @param aNode      the node to test
   */
  boolean nodeIsBlock(in nsIDOMNode node);

  /**
   * Insert some HTML source at the current location
   *
   * @param aInputString   the string to be inserted
   */
  void insertHTML(in AString aInputString);


  /**
    * Paste the text in the OS clipboard at the cursor position, replacing
    * the selected text (if any), but strip out any HTML styles and formatting
    */
  void pasteNoFormatting(in long aSelectionType);

  /**
   *  Rebuild the entire document from source HTML
   *  Needed to be able to edit HEAD and other outside-of-BODY content
   *
   *  @param aSourceString   HTML source string of the entire new document
   */
  void rebuildDocumentFromSource(in AString aSourceString);

  /**
   * Insert some HTML source, interpreting
   * the string argument according to the given context.
   *
   * @param aInputString   the string to be inserted
   * @param aContextStr    Context of insertion
   * @param aInfoStr       Related info to aInputString
   * @param aFlavor        Transferable flavor, can be ""
   * @param aSourceDoc          document where input was dragged from (may be null)
   * @param aDestinationNode    location for insertion (such as when dropped)
   * @param aDestinationOffset  used with aDestNode to determine insert location
   * @param aDeleteSelection    used with aDestNode during drag&drop
   * @param aCollapseSelection  used with aDestNode during drag&drop
   */
  void insertHTMLWithContext(in AString aInputString,
                             in AString aContextStr,
                             in AString aInfoStr,
                             in AString aFlavor,
                             in nsIDOMDocument aSourceDoc,
                             in nsIDOMNode aDestinationNode,
                             in long aDestinationOffset,
                             in boolean aDeleteSelection);


  /**
    * Insert an element, which may have child nodes, at the selection
    * Used primarily to insert a new element for various insert element dialogs,
    *   but it enforces the HTML 4.0 DTD "CanContain" rules, so it should
    *   be useful for other elements.
    *
    * @param aElement           The element to insert
    * @param aDeleteSelection   Delete the selection before inserting
    *     If aDeleteSelection is PR_FALSE, then the element is inserted
    *     after the end of the selection for all element except
    *     Named Anchors, which insert before the selection
    */
  void insertElementAtSelection(in nsIDOMElement aElement,
                                in boolean aDeleteSelection);

  /**
   *   Set the documents title.
   */
  void setDocumentTitle(in AString aTitle);

  /**
   *   Set the BaseURL for the document to the current URL
   *     but only if the page doesn't have a <base> tag
   *   This should be done after the document URL has changed,
   *     such as after saving a file
   *   This is used as base for relativizing link and image urls
   */
  void updateBaseURL();


  /* ------------ Selection manipulation -------------- */
  /* Should these be moved to nsISelection? */

  /**
    * Set the selection at the suppled element
    *
    * @param aElement   An element in the document
    */
  void selectElement(in nsIDOMElement aElement);

  /**
    * Create a collapsed selection just after aElement
    *
    * XXX could we parameterize SelectElement(before/select/after>?
    *
    * The selection is set to parent-of-aElement with an
    *   offset 1 greater than aElement's offset
    *   but it enforces the HTML 4.0 DTD "CanContain" rules, so it should
    *   be useful for other elements.
    *
    * @param aElement  An element in the document
    */
  void setCaretAfterElement(in nsIDOMElement aElement);

  /**
   * SetParagraphFormat       Insert a block paragraph tag around selection
   * @param aParagraphFormat  "p", "h1" to "h6", "address", "pre", or "blockquote"
   */
  void setParagraphFormat(in AString aParagraphFormat);

  /**
   * getParagraphState returns what block tag paragraph format is in
   * the selection.
   * @param aMixed     True if there is more than one format
   * @return           Name of block tag. "" is returned for none.
   */
  AString getParagraphState(out boolean aMixed);

  /**
   * getFontFaceState returns what font face is in the selection.
   * @param aMixed    True if there is more than one font face
   * @return          Name of face.  Note: "tt" is returned for
   *                  tt tag.  "" is returned for none.
   */
  AString getFontFaceState(out boolean aMixed);

  /**
   * getFontColorState returns what font face is in the selection.
   * @param aMixed     True if there is more than one font color
   * @return           Color string. "" is returned for none.
   */
  AString getFontColorState(out boolean aMixed);

  /**
   * getFontColorState returns what font face is in the selection.
   * @param aMixed     True if there is more than one font color
   * @return           Color string. "" is returned for none.
   */
  AString getBackgroundColorState(out boolean aMixed);

  /**
   * getHighlightColorState returns what the highlight color of the selection.
   * @param aMixed     True if there is more than one font color
   * @return           Color string. "" is returned for none.
   */
  AString getHighlightColorState(out boolean aMixed);

  /**
   * getListState returns what list type is in the selection.
   * @param aMixed    True if there is more than one type of list, or
   *                  if there is some list and non-list
   * @param aOL       The company that employs me.  No, really, it's
   *                  true if an "ol" list is selected.
   * @param aUL       true if an "ul" list is selected.
   * @param aDL       true if a "dl" list is selected.
   */
  void getListState(out boolean aMixed, out boolean aOL, out boolean aUL,
                    out boolean aDL);

  /**
   * getListItemState returns what list item type is in the selection.
   * @param aMixed    True if there is more than one type of list item, or
   *                  if there is some list and non-list
   * @param aLI       true if "li" list items are selected.
   * @param aDT       true if "dt" list items are selected.
   * @param aDD       true if "dd" list items are selected.
   */
  void getListItemState(out boolean aMixed, out boolean aLI,
                        out boolean aDT, out boolean aDD);

  /**
   * getAlignment     returns what alignment is in the selection.
   * @param aMixed    True if there is more than one type of list item, or
   *                  if there is some list and non-list
   * @param aAlign    enum value for first encountered alignment
   *                  (left/center/right)
   */
  void getAlignment(out boolean aMixed, out short aAlign);

  /**
   * Document me!
   *
   */
  void getIndentState(out boolean aCanIndent, out boolean aCanOutdent);

  /**
   * Document me!
   *
   */
  void makeOrChangeList(in AString aListType, in boolean entireList,
                        in AString aBulletType);

  /**
   * Document me!
   *
   */
  void removeList(in AString aListType);

  /**
   * Document me!
   *
   */
  void indent(in AString aIndent);

  /**
   * Document me!
   *
   */
  void  align(in AString aAlign);

  /**
   * Return the input node or a parent matching the given aTagName,
   *   starting the search at the supplied node.
   * An example of use is for testing if a node is in a table cell
   *   given a selection anchor node.
   *
   * @param aTagName  The HTML tagname
   *  Special input values:
   *    Use "href" to get a link node
   *      (an "A" tag with the "href" attribute set)
   *    Use "anchor" or "namedanchor" to get a named anchor node
   *      (an "A" tag with the "name" attribute set)
   *    Use "list" to get an OL, UL, or DL list node
   *    Use "td" to get either a TD or TH cell node
   *
   * @param aNode    The node in the document to start the search.
   *     If it is null, the anchor node of the current selection is used.
   * @return         NS_EDITOR_ELEMENT_NOT_FOUND if an element is not found
   *                 (passes NS_SUCCEEDED macro)
   */
  nsIDOMElement getElementOrParentByTagName(in AString aTagName,
                                            in nsIDOMNode aNode);

  /**
   * Return an element only if it is the only node selected,
   *    such as an image, horizontal rule, etc.
   * The exception is a link, which is more like a text attribute:
   *    The Anchor tag is returned if the selection is within the textnode(s)
   *    that are children of the "A" node.
   *    This could be a collapsed selection, i.e., a caret
   *    within the link text.
   *
   * @param aTagName  The HTML tagname or and empty string
   *       to get any element (but only if it is the only element selected)
   *    Special input values for Links and Named anchors:
   *    Use "href" to get a link node
   *      (an "A" tag with the "href" attribute set)
   *    Use "anchor" or "namedanchor" to get a named anchor node
   *      (an "A" tag with the "name" attribute set)
   * @return          NS_EDITOR_ELEMENT_NOT_FOUND if an element is not found
   *                  (passes NS_SUCCEEDED macro)
   */
  nsIDOMElement getSelectedElement(in AString aTagName);

  /**
   * Output the contents of the <HEAD> section as text/HTML format
   */
  AString getHeadContentsAsHTML();

  /**
   * Replace all children of <HEAD> with string of HTML source
   */
  void replaceHeadContentsWithHTML(in AString aSourceToInsert);

  /**
   * Return a new element with default attribute values
   *
   * This does not rely on the selection, and is not sensitive to context.
   *
   * Used primarily to supply new element for various insert element dialogs
   *  (Image, Link, NamedAnchor, Table, and HorizontalRule
   *   are the only returned elements as of 7/25/99)
   *
   * @param aTagName  The HTML tagname
   *    Special input values for Links and Named anchors:
   *    Use "href" to get a link node
   *      (an "A" tag with the "href" attribute set)
   *    Use "anchor" or "namedanchor" to get a named anchor node
   *      (an "A" tag with the "name" attribute set)
   * @return          The new element created.
   */
  nsIDOMElement createElementWithDefaults(in AString aTagName);

  /**
   * Insert an link element as the parent of the current selection
   *
   * @param aElement   An "A" element with a non-empty "href" attribute
   */
  void insertLinkAroundSelection(in nsIDOMElement aAnchorElement);

  /**
   * Set the value of the "bgcolor" attribute on the document's <body> element
   *
   * @param aColor  The HTML color string, such as "#ffccff" or "yellow"
   */
  void setBackgroundColor(in AString aColor);


  /**
   * Set an attribute on the document's <body> element
   *    such as text, link, background colors
   *
   * 8/31/00 THIS ISN'T BEING USED? SHOULD WE DROP IT?
   *
   * @param aAttr   The attribute to be set
   * @param aValue  The value of the attribute
   */
  void setBodyAttribute(in AString aAttr, in AString aValue);

  /**
   * Find all the nodes in the document which contain references
   * to outside URIs (e.g. a href, img src, script src, etc.)
   * The objects in the array will be type nsIURIRefObject.
   *
   * @return aNodeList    the linked nodes found
   */
  nsISupportsArray getLinkedObjects();

  /**
   * A boolean which is true is the HTMLEditor has been instantiated
   * with CSS knowledge and if the CSS pref is currently checked
   *
   * @return    true if CSS handled and enabled
   */
  attribute boolean isCSSEnabled;

  /**
   * Add listener for insertion override
   * @param inFilter  function which callers want called during insertion
   */
  void addInsertionListener(in nsIContentFilter inFilter);

  /**
   * Remove listener for insertion override
   * @param inFilter  function which callers do not want called during insertion
   */
  void removeInsertionListener(in nsIContentFilter inFilter);

  /**
   * Returns an anonymous nsDOMElement of type aTag,
   * child of aParentNode. If aIsCreatedHidden is true, the class
   * "hidden" is added to the created element. If aAnonClass is not
   * the empty string, it becomes the value of the attribute "_moz_anonclass"
   * @return a DOM Element
   * @param aTag             [IN] a string representing the desired type of
   *                              the element to create
   * @param aParentNode      [IN] the parent node of the created anonymous
   *                              element
   * @param aAnonClass       [IN] contents of the _moz_anonclass attribute
   * @param aIsCreatedHidden [IN] a boolean specifying if the class "hidden"
   *                              is to be added to the created anonymous
   *                              element
   */
  nsIDOMElement createAnonymousElement(in AString aTag, in nsIDOMNode aParentNode,
                                       in AString aAnonClass, in boolean aIsCreatedHidden);

  /**
   * returns the deepest container of the selection
   * @return a DOM Element
   */
  nsIDOMElement getSelectionContainer();

  /**
   * Checks if the anonymous nodes created by the HTML editor have to be
   * refreshed or hidden depending on a possible new state of the selection
   * @param aSelection [IN] a selection
   */
  void checkSelectionStateForAnonymousButtons(in nsISelection aSelection);

  boolean isAnonymousElement(in nsIDOMElement aElement);

  /**
   * A boolean indicating if a return key pressed in a paragraph creates
   * another paragraph or just inserts a <br> at the caret
   *
   * @return    true if CR in a paragraph creates a new paragraph
   */
  attribute boolean returnInParagraphCreatesNewParagraph;

  /**
   * Get an active editor's editing host in DOM window.  If this editor isn't
   * active in the DOM window, this returns NULL.
   */
  [noscript, notxpcom] Element GetActiveEditingHost();
};