tor-browser

The Tor Browser
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css-font-loading.idl (4024B)

      1 // GENERATED CONTENT - DO NOT EDIT
      2 // Content was automatically extracted by Reffy into webref
      3 // (https://github.com/w3c/webref)
      4 // Source: CSS Font Loading Module Level 3 (https://drafts.csswg.org/css-font-loading-3/)
      5 
      6 dictionary FontFaceDescriptors {
      7  CSSOMString style = "normal";
      8  CSSOMString weight = "normal";
      9  CSSOMString stretch = "normal";
     10  CSSOMString unicodeRange = "U+0-10FFFF";
     11  CSSOMString featureSettings = "normal";
     12  CSSOMString variationSettings = "normal";
     13  CSSOMString display = "auto";
     14  CSSOMString ascentOverride = "normal";
     15  CSSOMString descentOverride = "normal";
     16  CSSOMString lineGapOverride = "normal";
     17 };
     18 
     19 enum FontFaceLoadStatus { "unloaded", "loading", "loaded", "error" };
     20 
     21 [Exposed=(Window,Worker)]
     22 interface FontFace {
     23  constructor(CSSOMString family, (CSSOMString or BufferSource) source,
     24                optional FontFaceDescriptors descriptors = {});
     25  attribute CSSOMString family;
     26  attribute CSSOMString style;
     27  attribute CSSOMString weight;
     28  attribute CSSOMString stretch;
     29  attribute CSSOMString unicodeRange;
     30  attribute CSSOMString featureSettings;
     31  attribute CSSOMString variationSettings;
     32  attribute CSSOMString display;
     33  attribute CSSOMString ascentOverride;
     34  attribute CSSOMString descentOverride;
     35  attribute CSSOMString lineGapOverride;
     36 
     37  readonly attribute FontFaceLoadStatus status;
     38 
     39  Promise<FontFace> load();
     40  readonly attribute Promise<FontFace> loaded;
     41 };
     42 
     43 [Exposed=(Window,Worker)]
     44 interface FontFaceFeatures {
     45  /* The CSSWG is still discussing what goes in here */
     46 };
     47 
     48 [Exposed=(Window,Worker)]
     49 interface FontFaceVariationAxis {
     50  readonly attribute DOMString name;
     51  readonly attribute DOMString axisTag;
     52  readonly attribute double minimumValue;
     53  readonly attribute double maximumValue;
     54  readonly attribute double defaultValue;
     55 };
     56 
     57 [Exposed=(Window,Worker)]
     58 interface FontFaceVariations {
     59  readonly setlike<FontFaceVariationAxis>;
     60 };
     61 
     62 [Exposed=(Window,Worker)]
     63 interface FontFacePalette {
     64  iterable<DOMString>;
     65  readonly attribute unsigned long length;
     66  getter DOMString (unsigned long index);
     67  readonly attribute boolean usableWithLightBackground;
     68  readonly attribute boolean usableWithDarkBackground;
     69 };
     70 
     71 [Exposed=(Window,Worker)]
     72 interface FontFacePalettes {
     73  iterable<FontFacePalette>;
     74  readonly attribute unsigned long length;
     75  getter FontFacePalette (unsigned long index);
     76 };
     77 
     78 partial interface FontFace {
     79  readonly attribute FontFaceFeatures features;
     80  readonly attribute FontFaceVariations variations;
     81  readonly attribute FontFacePalettes palettes;
     82 };
     83 
     84 dictionary FontFaceSetLoadEventInit : EventInit {
     85  sequence<FontFace> fontfaces = [];
     86 };
     87 
     88 [Exposed=(Window,Worker)]
     89 interface FontFaceSetLoadEvent : Event {
     90  constructor(CSSOMString type, optional FontFaceSetLoadEventInit eventInitDict = {});
     91  [SameObject] readonly attribute FrozenArray<FontFace> fontfaces;
     92 };
     93 
     94 enum FontFaceSetLoadStatus { "loading", "loaded" };
     95 
     96 [Exposed=(Window,Worker)]
     97 interface FontFaceSet : EventTarget {
     98  setlike<FontFace>;
     99  FontFaceSet add(FontFace font);
    100  boolean delete(FontFace font);
    101  undefined clear();
    102 
    103  // events for when loading state changes
    104  attribute EventHandler onloading;
    105  attribute EventHandler onloadingdone;
    106  attribute EventHandler onloadingerror;
    107 
    108  // check and start loads if appropriate
    109  // and fulfill promise when all loads complete
    110  Promise<sequence<FontFace>> load(CSSOMString font, optional CSSOMString text = " ");
    111 
    112  // return whether all fonts in the fontlist are loaded
    113  // (does not initiate load if not available)
    114  boolean check(CSSOMString font, optional CSSOMString text = " ");
    115 
    116  // async notification that font loading and layout operations are done
    117  readonly attribute Promise<FontFaceSet> ready;
    118 
    119  // loading state, "loading" while one or more fonts loading, "loaded" otherwise
    120  readonly attribute FontFaceSetLoadStatus status;
    121 };
    122 
    123 interface mixin FontFaceSource {
    124  readonly attribute FontFaceSet fonts;
    125 };
    126 
    127 Document includes FontFaceSource;
    128 WorkerGlobalScope includes FontFaceSource;