editor/nsIHTMLEditor.idl

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* This Source Code Form is subject to the terms of the Mozilla Public
   3  * License, v. 2.0. If a copy of the MPL was not distributed with this
   4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   5
   6 #include "nsISupports.idl"
   7 #include "domstubs.idl"
   8
   9 interface nsIContent;
  10
  11 webidl Document;
  12 webidl Element;
  13 webidl Node;
  14 webidl Selection;
  15
  16 [scriptable, builtinclass, uuid(87ee993e-985f-4a43-a974-0d9512da2fb0)]
  17 interface nsIHTMLEditor : nsISupports
  18 {
  19 %{C++
  20   typedef short EAlignment;
  21 %}
  22
  23   // used by GetAlignment()
  24   const short eLeft = 0;
  25   const short eCenter = 1;
  26   const short eRight = 2;
  27   const short eJustify = 3;
  28
  29
  30   /* ------------ Inline property methods -------------- */
  31
  32   /**
  33    * SetInlineProperty() sets the aggregate properties on the current selection
  34    *
  35    * @param aProperty   the property to set on the selection
  36    * @param aAttribute  the attribute of the property, if applicable.
  37    *                    May be null.
  38    *                    Example: aProperty="font", aAttribute="color"
  39    * @param aValue      if aAttribute is not null, the value of the attribute.
  40    *                    May be null.
  41    *                    Example: aProperty="font", aAttribute="color",
  42    *                             aValue="0x00FFFF"
  43    */
  44   [can_run_script]
  45   void setInlineProperty(in AString aProperty,
  46                          in AString aAttribute,
  47                          in AString aValue);
  48
  49   /**
  50    * getInlinePropertyWithAttrValue() gets aggregate properties of the current
  51    * selection.  All object in the current selection are scanned and their
  52    * attributes are represented in a list of Property object.
  53    *
  54    * @param aProperty   the property to get on the selection
  55    * @param aAttribute  the attribute of the property, if applicable.
  56    *                    May be null.
  57    *                    Example: aProperty="font", aAttribute="color"
  58    * @param aValue      if aAttribute is not null, the value of the attribute.
  59    *                    May be null.
  60    *                    Example: aProperty="font", aAttribute="color",
  61    *                             aValue="0x00FFFF"
  62    * @param aFirst      [OUT] PR_TRUE if the first text node in the
  63    *                          selection has the property
  64    * @param aAny        [OUT] PR_TRUE if any of the text nodes in the
  65    *                          selection have the property
  66    * @param aAll        [OUT] PR_TRUE if all of the text nodes in the
  67    *                          selection have the property
  68    */
  69   [can_run_script]
  70   AString getInlinePropertyWithAttrValue(in AString aProperty,
  71                                          in AString aAttribute,
  72                                          in AString aValue,
  73                                          out boolean aFirst,
  74                                          out boolean aAny,
  75                                          out boolean aAll);
  76
  77   /**
  78    * removeInlineProperty() removes a property which changes inline style of
  79    * text.  E.g., bold, italic, super and sub.
  80    *
  81    * @param aProperty   Tag name whcih represents the inline style you want to
  82    *                    remove.  E.g., "strong", "b", etc.
  83    *                    If "href", <a> element which has href attribute will be
  84    *                    removed.
  85    *                    If "name", <a> element which has non-empty name
  86    *                    attribute will be removed.
  87    * @param aAttribute  If aProperty is "font", aAttribute should be "face",
  88    *                    "size", "color" or "bgcolor".
  89    */
  90   [can_run_script]
  91   void removeInlineProperty(in AString aProperty, in AString aAttribute);
  92
  93   /* ------------ HTML content methods -------------- */
  94
  95   /**
  96    * Tests if a node is a BLOCK element.  This checks whether the computed
  97    * style of the element is block or not.
  98    *
  99    * @param aNode      the node to test
 100    */
 101   [can_run_script]
 102   boolean nodeIsBlock(in Node aNode);
 103
 104   /**
 105    * Insert some HTML source at the current location
 106    *
 107    * @param aInputString   the string to be inserted
 108    */
 109   [can_run_script]
 110   void insertHTML(in AString aInputString);
 111
 112   /**
 113    *  Rebuild the entire document from source HTML
 114    *  Needed to be able to edit HEAD and other outside-of-BODY content
 115    *
 116    *  @param aSourceString   HTML source string of the entire new document
 117    */
 118   [can_run_script]
 119   void rebuildDocumentFromSource(in AString aSourceString);
 120
 121   /**
 122     * Insert an element, which may have child nodes, at the selection
 123     * Used primarily to insert a new element for various insert element dialogs,
 124     *   but it enforces the HTML 4.0 DTD "CanContain" rules, so it should
 125     *   be useful for other elements.
 126     *
 127     * @param aElement           The element to insert
 128     * @param aDeleteSelection   Delete the selection before inserting
 129     *     If aDeleteSelection is PR_FALSE, then the element is inserted
 130     *     after the end of the selection for all element except
 131     *     Named Anchors, which insert before the selection
 132     */
 133   [can_run_script]
 134   void insertElementAtSelection(in Element aElement,
 135                                 in boolean aDeleteSelection);
 136
 137   /**
 138    *   Set the BaseURL for the document to the current URL
 139    *     but only if the page doesn't have a <base> tag
 140    *   This should be done after the document URL has changed,
 141    *     such as after saving a file
 142    *   This is used as base for relativizing link and image urls
 143    */
 144   void updateBaseURL();
 145
 146
 147   /* ------------ Selection manipulation -------------- */
 148   /* Should these be moved to Selection? */
 149
 150   /**
 151     * Set the selection at the suppled element
 152     *
 153     * @param aElement   An element in the document
 154     */
 155   [can_run_script]
 156   void selectElement(in Element aElement);
 157
 158   /**
 159    * getParagraphState returns what block tag paragraph format is in
 160    * the selection.
 161    * @param aMixed     True if there is more than one format
 162    * @return           Name of block tag. "" is returned for none.
 163    */
 164   AString getParagraphState(out boolean aMixed);
 165
 166   /**
 167    * getFontFaceState returns what font face is in the selection.
 168    * @param aMixed    True if there is more than one font face
 169    * @return          Name of face.  Note: "tt" is returned for
 170    *                  tt tag.  "" is returned for none.
 171    */
 172   [can_run_script]
 173   AString getFontFaceState(out boolean aMixed);
 174
 175   /**
 176    * getHighlightColorState returns what the highlight color of the selection.
 177    * @param aMixed     True if there is more than one font color
 178    * @return           Color string. "" is returned for none.
 179    */
 180   [can_run_script]
 181   AString getHighlightColorState(out boolean aMixed);
 182
 183   /**
 184    * getListState returns what list type is in the selection.
 185    * @param aMixed    True if there is more than one type of list, or
 186    *                  if there is some list and non-list
 187    * @param aOL       The company that employs me.  No, really, it's
 188    *                  true if an "ol" list is selected.
 189    * @param aUL       true if an "ul" list is selected.
 190    * @param aDL       true if a "dl" list is selected.
 191    */
 192   void getListState(out boolean aMixed, out boolean aOL, out boolean aUL,
 193                     out boolean aDL);
 194
 195   /**
 196    * getListItemState returns what list item type is in the selection.
 197    * @param aMixed    True if there is more than one type of list item, or
 198    *                  if there is some list and non-list
 199    *                  XXX This ignores `<li>` element selected state.
 200    *                      For example, even if `<li>` and `<dt>` are selected,
 201    *                      this is set to false.
 202    * @param aLI       true if "li" list items are selected.
 203    * @param aDT       true if "dt" list items are selected.
 204    * @param aDD       true if "dd" list items are selected.
 205    */
 206   void getListItemState(out boolean aMixed, out boolean aLI,
 207                         out boolean aDT, out boolean aDD);
 208
 209   /**
 210    * getAlignment     returns what alignment is in the selection.
 211    * @param aMixed    Always returns false.
 212    * @param aAlign    enum value for first encountered alignment
 213    *                  (left/center/right)
 214    */
 215   [can_run_script]
 216   void getAlignment(out boolean aMixed, out short aAlign);
 217
 218   /**
 219    * Document me!
 220    *
 221    */
 222   [can_run_script]
 223   void makeOrChangeList(in AString aListType, in boolean entireList,
 224                         in AString aBulletType);
 225
 226   /**
 227    * removeList removes list items (<li>, <dd>, and <dt>) and list structures
 228    * (<ul>, <ol>, and <dl>).
 229    *
 230    * @param aListType  Unused.
 231    */
 232   [can_run_script]
 233   void removeList(in AString aListType);
 234
 235   /**
 236    * GetElementOrParentByTagName() returns an inclusive ancestor element whose
 237    * name matches aTagName from aNode or anchor node of Selection to <body>
 238    * element or null if there is no element matching with aTagName.
 239    *
 240    * @param aTagName        The tag name which you want to look for.
 241    *                        Must not be empty string.
 242    *                        If "list", the result may be <ul>, <ol> or <dl>
 243    *                        element.
 244    *                        If "td", the result may be <td> or <th>.
 245    *                        If "href", the result may be <a> element
 246    *                        which has "href" attribute with non-empty value.
 247    *                        If "anchor", the result may be <a> which has
 248    *                        "name" attribute with non-empty value.
 249    * @param aNode           If non-null, this starts to look for the result
 250    *                        from it.  Otherwise, i.e., null, starts from
 251    *                        anchor node of Selection.
 252    * @return                If an element which matches aTagName, returns
 253    *                        an Element.  Otherwise, nullptr.
 254    */
 255   Element getElementOrParentByTagName(in AString aTagName,
 256                                       in Node aNode);
 257
 258   /**
 259    * getSelectedElement() returns a "selected" element node.  "selected" means:
 260    * - there is only one selection range
 261    * - the range starts from an element node or in an element
 262    * - the range ends at immediately after same element
 263    * - and the range does not include any other element nodes.
 264    * Additionally, only when aTagName is "href", this thinks that an <a>
 265    * element which has non-empty "href" attribute includes the range, the
 266    * <a> element is selected.
 267    *
 268    * @param aTagName    Case-insensitive element name.
 269    *                    If empty string, this returns any element node or null.
 270    *                    If "href", this returns an <a> element which has
 271    *                    non-empty "href" attribute or null.
 272    *                    If "anchor", this returns an <a> element which has
 273    *                    non-empty "name" attribute or null.
 274    *                    Otherwise, returns an element node whose name is
 275    *                    same as aTagName or null.
 276    * @return            A "selected" element.
 277    */
 278   nsISupports getSelectedElement(in AString aTagName);
 279
 280   /**
 281    * Return a new element with default attribute values
 282    *
 283    * This does not rely on the selection, and is not sensitive to context.
 284    *
 285    * Used primarily to supply new element for various insert element dialogs
 286    *  (Image, Link, NamedAnchor, Table, and HorizontalRule
 287    *   are the only returned elements as of 7/25/99)
 288    *
 289    * @param aTagName  The HTML tagname
 290    *    Special input values for Links and Named anchors:
 291    *    Use "href" to get a link node
 292    *      (an "A" tag with the "href" attribute set)
 293    *    Use "anchor" or "namedanchor" to get a named anchor node
 294    *      (an "A" tag with the "name" attribute set)
 295    * @return          The new element created.
 296    */
 297   [can_run_script]
 298   Element createElementWithDefaults(in AString aTagName);
 299
 300   /**
 301    * Insert an link element as the parent of the current selection
 302    *
 303    * @param aElement   An "A" element with a non-empty "href" attribute
 304    */
 305   [can_run_script]
 306   void insertLinkAroundSelection(in Element aAnchorElement);
 307
 308   /**
 309    * Set the value of the "bgcolor" attribute on the document's <body> element
 310    *
 311    * @param aColor  The HTML color string, such as "#ffccff" or "yellow"
 312    */
 313   [can_run_script]
 314   void setBackgroundColor(in AString aColor);
 315
 316   /**
 317    * A boolean which is true is the HTMLEditor has been instantiated
 318    * with CSS knowledge and if the CSS pref is currently checked
 319    *
 320    * @return    true if CSS handled and enabled
 321    */
 322   [setter_can_run_script] attribute boolean isCSSEnabled;
 323
 324   /**
 325    * checkSelectionStateForAnonymousButtons() may refresh editing UI such as
 326    * resizers, inline-table-editing UI, absolute positioning UI for current
 327    * Selection and focus state.  When this method shows or hides UI, the
 328    * editor (and/or its document/window) could be broken by mutation observers.
 329    * FYI: Current user in script is only BlueGriffon.
 330    */
 331   [can_run_script]
 332   void checkSelectionStateForAnonymousButtons();
 333
 334   boolean isAnonymousElement(in Element aElement);
 335
 336   /**
 337    * A boolean indicating if a return key pressed in a paragraph creates
 338    * another paragraph or just inserts a <br> at the caret
 339    *
 340    * @return    true if CR in a paragraph creates a new paragraph
 341    */
 342   attribute boolean returnInParagraphCreatesNewParagraph;
 343 };