/usr/include/firefox/nsCSSValue.h is in firefox-dev 11.0+build1-0ubuntu4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 | /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** 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.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* 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"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
/* representation of simple property values within CSS declarations */
#ifndef nsCSSValue_h___
#define nsCSSValue_h___
#include "nsCOMPtr.h"
#include "nsCRTGlue.h"
#include "nsCSSKeywords.h"
#include "nsCSSProperty.h"
#include "nsColor.h"
#include "nsCoord.h"
#include "nsString.h"
#include "nsStringBuffer.h"
#include "nsTArray.h"
#include "nsStyleConsts.h"
class imgIRequest;
class nsIDocument;
class nsIPrincipal;
class nsPresContext;
class nsIURI;
// Deletes a linked list iteratively to avoid blowing up the stack (bug 456196).
#define NS_CSS_DELETE_LIST_MEMBER(type_, ptr_, member_) \
{ \
type_ *cur = (ptr_)->member_; \
(ptr_)->member_ = nsnull; \
while (cur) { \
type_ *next = cur->member_; \
cur->member_ = nsnull; \
delete cur; \
cur = next; \
} \
}
// Clones a linked list iteratively to avoid blowing up the stack.
// If it fails to clone the entire list then 'to_' is deleted and
// we return null.
#define NS_CSS_CLONE_LIST_MEMBER(type_, from_, member_, to_, args_) \
{ \
type_ *dest = (to_); \
(to_)->member_ = nsnull; \
for (const type_ *src = (from_)->member_; src; src = src->member_) { \
type_ *clone = src->Clone args_; \
if (!clone) { \
delete (to_); \
return nsnull; \
} \
dest->member_ = clone; \
dest = clone; \
} \
}
enum nsCSSUnit {
eCSSUnit_Null = 0, // (n/a) null unit, value is not specified
eCSSUnit_Auto = 1, // (n/a) value is algorithmic
eCSSUnit_Inherit = 2, // (n/a) value is inherited
eCSSUnit_Initial = 3, // (n/a) value is default UA value
eCSSUnit_None = 4, // (n/a) value is none
eCSSUnit_Normal = 5, // (n/a) value is normal (algorithmic, different than auto)
eCSSUnit_System_Font = 6, // (n/a) value is -moz-use-system-font
eCSSUnit_All = 7, // (n/a) value is all
eCSSUnit_Dummy = 8, // (n/a) a fake but specified value, used
// only in temporary values
eCSSUnit_DummyInherit = 9, // (n/a) a fake but specified value, used
// only in temporary values
eCSSUnit_String = 11, // (PRUnichar*) a string value
eCSSUnit_Ident = 12, // (PRUnichar*) a string value
eCSSUnit_Families = 13, // (PRUnichar*) a string value
eCSSUnit_Attr = 14, // (PRUnichar*) a attr(string) value
eCSSUnit_Local_Font = 15, // (PRUnichar*) a local font name
eCSSUnit_Font_Format = 16, // (PRUnichar*) a font format name
eCSSUnit_Element = 17, // (PRUnichar*) an element id
eCSSUnit_Array = 20, // (nsCSSValue::Array*) a list of values
eCSSUnit_Counter = 21, // (nsCSSValue::Array*) a counter(string,[string]) value
eCSSUnit_Counters = 22, // (nsCSSValue::Array*) a counters(string,string[,string]) value
eCSSUnit_Cubic_Bezier = 23, // (nsCSSValue::Array*) a list of float values
eCSSUnit_Steps = 24, // (nsCSSValue::Array*) a list of (integer, enumerated)
eCSSUnit_Function = 25, // (nsCSSValue::Array*) a function with
// parameters. First elem of array is name,
// the rest of the values are arguments.
// The top level of a calc() expression is eCSSUnit_Calc. All
// remaining eCSSUnit_Calc_* units only occur inside these toplevel
// calc values.
// eCSSUnit_Calc has an array with exactly 1 element. eCSSUnit_Calc
// exists so we can distinguish calc(2em) from 2em as specified values
// (but we drop this distinction for nsStyleCoord when we store
// computed values).
eCSSUnit_Calc = 30, // (nsCSSValue::Array*) calc() value
// Plus, Minus, Times_* and Divided have arrays with exactly 2
// elements. a + b + c + d is grouped as ((a + b) + c) + d
eCSSUnit_Calc_Plus = 31, // (nsCSSValue::Array*) + node within calc()
eCSSUnit_Calc_Minus = 32, // (nsCSSValue::Array*) - within calc
eCSSUnit_Calc_Times_L = 33, // (nsCSSValue::Array*) num * val within calc
eCSSUnit_Calc_Times_R = 34, // (nsCSSValue::Array*) val * num within calc
eCSSUnit_Calc_Divided = 35, // (nsCSSValue::Array*) / within calc
eCSSUnit_URL = 40, // (nsCSSValue::URL*) value
eCSSUnit_Image = 41, // (nsCSSValue::Image*) value
eCSSUnit_Gradient = 42, // (nsCSSValueGradient*) value
eCSSUnit_Pair = 50, // (nsCSSValuePair*) pair of values
eCSSUnit_Triplet = 51, // (nsCSSValueTriplet*) triplet of values
eCSSUnit_Rect = 52, // (nsCSSRect*) rectangle (four values)
eCSSUnit_List = 53, // (nsCSSValueList*) list of values
eCSSUnit_ListDep = 54, // (nsCSSValueList*) same as List
// but does not own the list
eCSSUnit_PairList = 55, // (nsCSSValuePairList*) list of value pairs
eCSSUnit_PairListDep = 56, // (nsCSSValuePairList*) same as PairList
// but does not own the list
eCSSUnit_Integer = 70, // (int) simple value
eCSSUnit_Enumerated = 71, // (int) value has enumerated meaning
eCSSUnit_EnumColor = 80, // (int) enumerated color (kColorKTable)
eCSSUnit_Color = 81, // (nscolor) an RGBA value
eCSSUnit_Percent = 90, // (float) 1.0 == 100%) value is percentage of something
eCSSUnit_Number = 91, // (float) value is numeric (usually multiplier, different behavior that percent)
// Physical length units
eCSSUnit_PhysicalMillimeter = 200, // (float) 1/25.4 inch
// Length units - relative
// Font relative measure
eCSSUnit_EM = 800, // (float) == current font size
eCSSUnit_XHeight = 801, // (float) distance from top of lower case x to baseline
eCSSUnit_Char = 802, // (float) number of characters, used for width with monospace font
eCSSUnit_RootEM = 803, // (float) == root element font size
// Screen relative measure
eCSSUnit_Point = 900, // (float) 4/3 of a CSS pixel
eCSSUnit_Inch = 901, // (float) 96 CSS pixels
eCSSUnit_Millimeter = 902, // (float) 96/25.4 CSS pixels
eCSSUnit_Centimeter = 903, // (float) 96/2.54 CSS pixels
eCSSUnit_Pica = 904, // (float) 12 points == 16 CSS pixls
eCSSUnit_Pixel = 905, // (float) CSS pixel unit
// Angular units
eCSSUnit_Degree = 1000, // (float) 360 per circle
eCSSUnit_Grad = 1001, // (float) 400 per circle
eCSSUnit_Radian = 1002, // (float) 2*pi per circle
// Frequency units
eCSSUnit_Hertz = 2000, // (float) 1/seconds
eCSSUnit_Kilohertz = 2001, // (float) 1000 Hertz
// Time units
eCSSUnit_Seconds = 3000, // (float) Standard time
eCSSUnit_Milliseconds = 3001 // (float) 1/1000 second
};
struct nsCSSValueGradient;
struct nsCSSValuePair;
struct nsCSSValuePair_heap;
struct nsCSSRect;
struct nsCSSRect_heap;
struct nsCSSValueList;
struct nsCSSValueList_heap;
struct nsCSSValuePairList;
struct nsCSSValuePairList_heap;
struct nsCSSValueTriplet;
struct nsCSSValueTriplet_heap;
class nsCSSValue {
public:
struct Array;
friend struct Array;
struct URL;
friend struct URL;
struct Image;
friend struct Image;
// for valueless units only (null, auto, inherit, none, all, normal)
explicit nsCSSValue(nsCSSUnit aUnit = eCSSUnit_Null)
: mUnit(aUnit)
{
NS_ABORT_IF_FALSE(aUnit <= eCSSUnit_DummyInherit, "not a valueless unit");
}
nsCSSValue(PRInt32 aValue, nsCSSUnit aUnit);
nsCSSValue(float aValue, nsCSSUnit aUnit);
nsCSSValue(const nsString& aValue, nsCSSUnit aUnit);
nsCSSValue(Array* aArray, nsCSSUnit aUnit);
explicit nsCSSValue(URL* aValue);
explicit nsCSSValue(Image* aValue);
explicit nsCSSValue(nsCSSValueGradient* aValue);
nsCSSValue(const nsCSSValue& aCopy);
~nsCSSValue() { Reset(); }
nsCSSValue& operator=(const nsCSSValue& aCopy);
bool operator==(const nsCSSValue& aOther) const;
bool operator!=(const nsCSSValue& aOther) const
{
return !(*this == aOther);
}
/**
* Serialize |this| as a specified value for |aProperty| and append
* it to |aResult|.
*/
void AppendToString(nsCSSProperty aProperty, nsAString& aResult) const;
nsCSSUnit GetUnit() const { return mUnit; }
bool IsLengthUnit() const
{ return eCSSUnit_PhysicalMillimeter <= mUnit && mUnit <= eCSSUnit_Pixel; }
/**
* A "fixed" length unit is one that means a specific physical length
* which we try to match based on the physical characteristics of an
* output device.
*/
bool IsFixedLengthUnit() const
{ return mUnit == eCSSUnit_PhysicalMillimeter; }
/**
* What the spec calls relative length units is, for us, split
* between relative length units and pixel length units.
*
* A "relative" length unit is a multiple of some derived metric,
* such as a font em-size, which itself was controlled by an input CSS
* length. Relative length units should not be scaled by zooming, since
* the underlying CSS length would already have been scaled.
*/
bool IsRelativeLengthUnit() const
{ return eCSSUnit_EM <= mUnit && mUnit <= eCSSUnit_RootEM; }
/**
* A "pixel" length unit is a some multiple of CSS pixels.
*/
bool IsPixelLengthUnit() const
{ return eCSSUnit_Point <= mUnit && mUnit <= eCSSUnit_Pixel; }
bool IsAngularUnit() const
{ return eCSSUnit_Degree <= mUnit && mUnit <= eCSSUnit_Radian; }
bool IsFrequencyUnit() const
{ return eCSSUnit_Hertz <= mUnit && mUnit <= eCSSUnit_Kilohertz; }
bool IsTimeUnit() const
{ return eCSSUnit_Seconds <= mUnit && mUnit <= eCSSUnit_Milliseconds; }
bool IsCalcUnit() const
{ return eCSSUnit_Calc <= mUnit && mUnit <= eCSSUnit_Calc_Divided; }
bool UnitHasStringValue() const
{ return eCSSUnit_String <= mUnit && mUnit <= eCSSUnit_Element; }
bool UnitHasArrayValue() const
{ return eCSSUnit_Array <= mUnit && mUnit <= eCSSUnit_Calc_Divided; }
PRInt32 GetIntValue() const
{
NS_ABORT_IF_FALSE(mUnit == eCSSUnit_Integer ||
mUnit == eCSSUnit_Enumerated ||
mUnit == eCSSUnit_EnumColor,
"not an int value");
return mValue.mInt;
}
float GetPercentValue() const
{
NS_ABORT_IF_FALSE(mUnit == eCSSUnit_Percent, "not a percent value");
return mValue.mFloat;
}
float GetFloatValue() const
{
NS_ABORT_IF_FALSE(eCSSUnit_Number <= mUnit, "not a float value");
return mValue.mFloat;
}
float GetAngleValue() const
{
NS_ABORT_IF_FALSE(eCSSUnit_Degree <= mUnit &&
mUnit <= eCSSUnit_Radian, "not an angle value");
return mValue.mFloat;
}
// Converts any angle to radians.
double GetAngleValueInRadians() const;
nsAString& GetStringValue(nsAString& aBuffer) const
{
NS_ABORT_IF_FALSE(UnitHasStringValue(), "not a string value");
aBuffer.Truncate();
PRUint32 len = NS_strlen(GetBufferValue(mValue.mString));
mValue.mString->ToString(len, aBuffer);
return aBuffer;
}
const PRUnichar* GetStringBufferValue() const
{
NS_ABORT_IF_FALSE(UnitHasStringValue(), "not a string value");
return GetBufferValue(mValue.mString);
}
nscolor GetColorValue() const
{
NS_ABORT_IF_FALSE((mUnit == eCSSUnit_Color), "not a color value");
return mValue.mColor;
}
bool IsNonTransparentColor() const;
Array* GetArrayValue() const
{
NS_ABORT_IF_FALSE(UnitHasArrayValue(), "not an array value");
return mValue.mArray;
}
nsIURI* GetURLValue() const
{
NS_ABORT_IF_FALSE(mUnit == eCSSUnit_URL || mUnit == eCSSUnit_Image,
"not a URL value");
return mUnit == eCSSUnit_URL ?
mValue.mURL->GetURI() : mValue.mImage->GetURI();
}
nsCSSValueGradient* GetGradientValue() const
{
NS_ABORT_IF_FALSE(mUnit == eCSSUnit_Gradient, "not a gradient value");
return mValue.mGradient;
}
// bodies of these are below
inline nsCSSValuePair& GetPairValue();
inline const nsCSSValuePair& GetPairValue() const;
inline nsCSSRect& GetRectValue();
inline const nsCSSRect& GetRectValue() const;
inline nsCSSValueList* GetListValue();
inline const nsCSSValueList* GetListValue() const;
inline nsCSSValuePairList* GetPairListValue();
inline const nsCSSValuePairList* GetPairListValue() const;
inline nsCSSValueTriplet& GetTripletValue();
inline const nsCSSValueTriplet& GetTripletValue() const;
URL* GetURLStructValue() const
{
// Not allowing this for Image values, because if the caller takes
// a ref to them they won't be able to delete them properly.
NS_ABORT_IF_FALSE(mUnit == eCSSUnit_URL, "not a URL value");
return mValue.mURL;
}
const PRUnichar* GetOriginalURLValue() const
{
NS_ABORT_IF_FALSE(mUnit == eCSSUnit_URL || mUnit == eCSSUnit_Image,
"not a URL value");
return GetBufferValue(mUnit == eCSSUnit_URL ?
mValue.mURL->mString :
mValue.mImage->mString);
}
// Not making this inline because that would force us to include
// imgIRequest.h, which leads to REQUIRES hell, since this header is included
// all over.
imgIRequest* GetImageValue() const;
nscoord GetFixedLength(nsPresContext* aPresContext) const;
nscoord GetPixelLength() const;
void Reset() // sets to null
{
if (mUnit != eCSSUnit_Null)
DoReset();
}
private:
void DoReset();
public:
void SetIntValue(PRInt32 aValue, nsCSSUnit aUnit);
void SetPercentValue(float aValue);
void SetFloatValue(float aValue, nsCSSUnit aUnit);
void SetStringValue(const nsString& aValue, nsCSSUnit aUnit);
void SetColorValue(nscolor aValue);
void SetArrayValue(nsCSSValue::Array* aArray, nsCSSUnit aUnit);
void SetURLValue(nsCSSValue::URL* aURI);
void SetImageValue(nsCSSValue::Image* aImage);
void SetGradientValue(nsCSSValueGradient* aGradient);
void SetPairValue(const nsCSSValuePair* aPair);
void SetPairValue(const nsCSSValue& xValue, const nsCSSValue& yValue);
void SetDependentListValue(nsCSSValueList* aList);
void SetDependentPairListValue(nsCSSValuePairList* aList);
void SetTripletValue(const nsCSSValueTriplet* aTriplet);
void SetTripletValue(const nsCSSValue& xValue, const nsCSSValue& yValue, const nsCSSValue& zValue);
void SetAutoValue();
void SetInheritValue();
void SetInitialValue();
void SetNoneValue();
void SetAllValue();
void SetNormalValue();
void SetSystemFontValue();
void SetDummyValue();
void SetDummyInheritValue();
// These are a little different - they allocate storage for you and
// return a handle.
nsCSSRect& SetRectValue();
nsCSSValueList* SetListValue();
nsCSSValuePairList* SetPairListValue();
void StartImageLoad(nsIDocument* aDocument) const; // Only pretend const
// Initializes as a function value with the specified function id.
Array* InitFunction(nsCSSKeyword aFunctionId, PRUint32 aNumArgs);
// Checks if this is a function value with the specified function id.
bool EqualsFunction(nsCSSKeyword aFunctionId) const;
// Returns an already addrefed buffer. Can return null on allocation
// failure.
static already_AddRefed<nsStringBuffer>
BufferFromString(const nsString& aValue);
struct URL {
// Methods are not inline because using an nsIPrincipal means requiring
// caps, which leads to REQUIRES hell, since this header is included all
// over.
// For both constructors aString must not be null.
// For both constructors aOriginPrincipal must not be null.
// Construct with a base URI; this will create the actual URI lazily from
// aString and aBaseURI.
URL(nsStringBuffer* aString, nsIURI* aBaseURI, nsIURI* aReferrer,
nsIPrincipal* aOriginPrincipal);
// Construct with the actual URI.
URL(nsIURI* aURI, nsStringBuffer* aString, nsIURI* aReferrer,
nsIPrincipal* aOriginPrincipal);
~URL();
bool operator==(const URL& aOther) const;
// URIEquals only compares URIs and principals (unlike operator==, which
// also compares the original strings). URIEquals also assumes that the
// mURI member of both URL objects is non-null. Do NOT call this method
// unless you're sure this is the case.
bool URIEquals(const URL& aOther) const;
nsIURI* GetURI() const;
private:
// If mURIResolved is false, mURI stores the base URI.
// If mURIResolved is true, mURI stores the URI we resolve to; this may be
// null if the URI is invalid.
mutable nsCOMPtr<nsIURI> mURI;
public:
nsStringBuffer* mString; // Could use nsRefPtr, but it'd add useless
// null-checks; this is never null.
nsCOMPtr<nsIURI> mReferrer;
nsCOMPtr<nsIPrincipal> mOriginPrincipal;
NS_INLINE_DECL_REFCOUNTING(nsCSSValue::URL)
private:
mutable bool mURIResolved;
// not to be implemented
URL(const URL& aOther);
URL& operator=(const URL& aOther);
};
struct Image : public URL {
// Not making the constructor and destructor inline because that would
// force us to include imgIRequest.h, which leads to REQUIRES hell, since
// this header is included all over.
// aString must not be null.
Image(nsIURI* aURI, nsStringBuffer* aString, nsIURI* aReferrer,
nsIPrincipal* aOriginPrincipal, nsIDocument* aDocument);
~Image();
// Inherit operator== from nsCSSValue::URL
nsCOMPtr<imgIRequest> mRequest; // null == image load blocked or somehow failed
// Override AddRef and Release to not only log ourselves correctly, but
// also so that we delete correctly without a virtual destructor
NS_INLINE_DECL_REFCOUNTING(nsCSSValue::Image)
};
private:
static const PRUnichar* GetBufferValue(nsStringBuffer* aBuffer) {
return static_cast<PRUnichar*>(aBuffer->Data());
}
protected:
nsCSSUnit mUnit;
union {
PRInt32 mInt;
float mFloat;
// Note: the capacity of the buffer may exceed the length of the string.
// If we're of a string type, mString is not null.
nsStringBuffer* mString;
nscolor mColor;
Array* mArray;
URL* mURL;
Image* mImage;
nsCSSValueGradient* mGradient;
nsCSSValuePair_heap* mPair;
nsCSSRect_heap* mRect;
nsCSSValueTriplet_heap* mTriplet;
nsCSSValueList_heap* mList;
nsCSSValueList* mListDependent;
nsCSSValuePairList_heap* mPairList;
nsCSSValuePairList* mPairListDependent;
} mValue;
};
struct nsCSSValue::Array {
// return |Array| with reference count of zero
static Array* Create(size_t aItemCount) {
return new (aItemCount) Array(aItemCount);
}
nsCSSValue& operator[](size_t aIndex) {
NS_ABORT_IF_FALSE(aIndex < mCount, "out of range");
return mArray[aIndex];
}
const nsCSSValue& operator[](size_t aIndex) const {
NS_ABORT_IF_FALSE(aIndex < mCount, "out of range");
return mArray[aIndex];
}
nsCSSValue& Item(size_t aIndex) { return (*this)[aIndex]; }
const nsCSSValue& Item(size_t aIndex) const { return (*this)[aIndex]; }
size_t Count() const { return mCount; }
bool operator==(const Array& aOther) const
{
if (mCount != aOther.mCount)
return false;
for (size_t i = 0; i < mCount; ++i)
if ((*this)[i] != aOther[i])
return false;
return true;
}
// XXXdholbert This uses a size_t ref count. Should we use a variant
// of NS_INLINE_DECL_REFCOUNTING that takes a type as an argument?
void AddRef() {
if (mRefCnt == size_t(-1)) { // really want SIZE_MAX
NS_WARNING("refcount overflow, leaking nsCSSValue::Array");
return;
}
++mRefCnt;
NS_LOG_ADDREF(this, mRefCnt, "nsCSSValue::Array", sizeof(*this));
}
void Release() {
if (mRefCnt == size_t(-1)) { // really want SIZE_MAX
NS_WARNING("refcount overflow, leaking nsCSSValue::Array");
return;
}
--mRefCnt;
NS_LOG_RELEASE(this, mRefCnt, "nsCSSValue::Array");
if (mRefCnt == 0)
delete this;
}
private:
size_t mRefCnt;
const size_t mCount;
// This must be the last sub-object, since we extend this array to
// be of size mCount; it needs to be a sub-object so it gets proper
// alignment.
nsCSSValue mArray[1];
void* operator new(size_t aSelfSize, size_t aItemCount) CPP_THROW_NEW {
NS_ABORT_IF_FALSE(aItemCount > 0, "cannot have a 0 item count");
return ::operator new(aSelfSize + sizeof(nsCSSValue) * (aItemCount - 1));
}
void operator delete(void* aPtr) { ::operator delete(aPtr); }
nsCSSValue* First() { return mArray; }
const nsCSSValue* First() const { return mArray; }
#define CSSVALUE_LIST_FOR_EXTRA_VALUES(var) \
for (nsCSSValue *var = First() + 1, *var##_end = First() + mCount; \
var != var##_end; ++var)
Array(size_t aItemCount)
: mRefCnt(0)
, mCount(aItemCount)
{
MOZ_COUNT_CTOR(nsCSSValue::Array);
CSSVALUE_LIST_FOR_EXTRA_VALUES(val) {
new (val) nsCSSValue();
}
}
~Array()
{
MOZ_COUNT_DTOR(nsCSSValue::Array);
CSSVALUE_LIST_FOR_EXTRA_VALUES(val) {
val->~nsCSSValue();
}
}
#undef CSSVALUE_LIST_FOR_EXTRA_VALUES
private:
// not to be implemented
Array(const Array& aOther);
Array& operator=(const Array& aOther);
};
// Prefer nsCSSValue::Array for lists of fixed size.
struct nsCSSValueList {
nsCSSValueList() : mNext(nsnull) { MOZ_COUNT_CTOR(nsCSSValueList); }
~nsCSSValueList();
nsCSSValueList* Clone() const; // makes a deep copy
void CloneInto(nsCSSValueList* aList) const; // makes a deep copy into aList
void AppendToString(nsCSSProperty aProperty, nsAString& aResult) const;
bool operator==(nsCSSValueList const& aOther) const;
bool operator!=(const nsCSSValueList& aOther) const
{ return !(*this == aOther); }
nsCSSValue mValue;
nsCSSValueList* mNext;
private:
nsCSSValueList(const nsCSSValueList& aCopy) // makes a shallow copy
: mValue(aCopy.mValue), mNext(nsnull)
{
MOZ_COUNT_CTOR(nsCSSValueList);
}
};
// nsCSSValueList_heap differs from nsCSSValueList only in being
// refcounted. It should not be necessary to use this class directly;
// it's an implementation detail of nsCSSValue.
struct nsCSSValueList_heap : public nsCSSValueList {
NS_INLINE_DECL_REFCOUNTING(nsCSSValueList_heap)
};
// This has to be here so that the relationship between nsCSSValueList
// and nsCSSValueList_heap is visible.
inline nsCSSValueList*
nsCSSValue::GetListValue()
{
if (mUnit == eCSSUnit_List)
return mValue.mList;
else {
NS_ABORT_IF_FALSE(mUnit == eCSSUnit_ListDep, "not a pairlist value");
return mValue.mListDependent;
}
}
inline const nsCSSValueList*
nsCSSValue::GetListValue() const
{
if (mUnit == eCSSUnit_List)
return mValue.mList;
else {
NS_ABORT_IF_FALSE(mUnit == eCSSUnit_ListDep, "not a pairlist value");
return mValue.mListDependent;
}
}
struct nsCSSRect {
nsCSSRect(void);
nsCSSRect(const nsCSSRect& aCopy);
~nsCSSRect();
void AppendToString(nsCSSProperty aProperty, nsAString& aResult) const;
bool operator==(const nsCSSRect& aOther) const {
return mTop == aOther.mTop &&
mRight == aOther.mRight &&
mBottom == aOther.mBottom &&
mLeft == aOther.mLeft;
}
bool operator!=(const nsCSSRect& aOther) const {
return mTop != aOther.mTop ||
mRight != aOther.mRight ||
mBottom != aOther.mBottom ||
mLeft != aOther.mLeft;
}
void SetAllSidesTo(const nsCSSValue& aValue);
void Reset() {
mTop.Reset();
mRight.Reset();
mBottom.Reset();
mLeft.Reset();
}
bool HasValue() const {
return
mTop.GetUnit() != eCSSUnit_Null ||
mRight.GetUnit() != eCSSUnit_Null ||
mBottom.GetUnit() != eCSSUnit_Null ||
mLeft.GetUnit() != eCSSUnit_Null;
}
nsCSSValue mTop;
nsCSSValue mRight;
nsCSSValue mBottom;
nsCSSValue mLeft;
typedef nsCSSValue nsCSSRect::*side_type;
static const side_type sides[4];
};
// nsCSSRect_heap differs from nsCSSRect only in being
// refcounted. It should not be necessary to use this class directly;
// it's an implementation detail of nsCSSValue.
struct nsCSSRect_heap : public nsCSSRect {
NS_INLINE_DECL_REFCOUNTING(nsCSSRect_heap)
};
// This has to be here so that the relationship between nsCSSRect
// and nsCSSRect_heap is visible.
inline nsCSSRect&
nsCSSValue::GetRectValue()
{
NS_ABORT_IF_FALSE(mUnit == eCSSUnit_Rect, "not a pair value");
return *mValue.mRect;
}
inline const nsCSSRect&
nsCSSValue::GetRectValue() const
{
NS_ABORT_IF_FALSE(mUnit == eCSSUnit_Rect, "not a pair value");
return *mValue.mRect;
}
struct nsCSSValuePair {
nsCSSValuePair()
{
MOZ_COUNT_CTOR(nsCSSValuePair);
}
nsCSSValuePair(nsCSSUnit aUnit)
: mXValue(aUnit), mYValue(aUnit)
{
MOZ_COUNT_CTOR(nsCSSValuePair);
}
nsCSSValuePair(const nsCSSValue& aXValue, const nsCSSValue& aYValue)
: mXValue(aXValue), mYValue(aYValue)
{
MOZ_COUNT_CTOR(nsCSSValuePair);
}
nsCSSValuePair(const nsCSSValuePair& aCopy)
: mXValue(aCopy.mXValue), mYValue(aCopy.mYValue)
{
MOZ_COUNT_CTOR(nsCSSValuePair);
}
~nsCSSValuePair()
{
MOZ_COUNT_DTOR(nsCSSValuePair);
}
bool operator==(const nsCSSValuePair& aOther) const {
return mXValue == aOther.mXValue &&
mYValue == aOther.mYValue;
}
bool operator!=(const nsCSSValuePair& aOther) const {
return mXValue != aOther.mXValue ||
mYValue != aOther.mYValue;
}
void SetBothValuesTo(const nsCSSValue& aValue) {
mXValue = aValue;
mYValue = aValue;
}
void Reset() {
mXValue.Reset();
mYValue.Reset();
}
bool HasValue() const {
return mXValue.GetUnit() != eCSSUnit_Null ||
mYValue.GetUnit() != eCSSUnit_Null;
}
void AppendToString(nsCSSProperty aProperty, nsAString& aResult) const;
nsCSSValue mXValue;
nsCSSValue mYValue;
};
// nsCSSValuePair_heap differs from nsCSSValuePair only in being
// refcounted. It should not be necessary to use this class directly;
// it's an implementation detail of nsCSSValue.
struct nsCSSValuePair_heap : public nsCSSValuePair {
// forward constructor
nsCSSValuePair_heap(const nsCSSValue& aXValue, const nsCSSValue& aYValue)
: nsCSSValuePair(aXValue, aYValue)
{}
NS_INLINE_DECL_REFCOUNTING(nsCSSValuePair_heap)
};
struct nsCSSValueTriplet {
nsCSSValueTriplet()
{
MOZ_COUNT_CTOR(nsCSSValueTriplet);
}
nsCSSValueTriplet(nsCSSUnit aUnit)
: mXValue(aUnit), mYValue(aUnit), mZValue(aUnit)
{
MOZ_COUNT_CTOR(nsCSSValueTriplet);
}
nsCSSValueTriplet(const nsCSSValue& aXValue,
const nsCSSValue& aYValue,
const nsCSSValue& aZValue)
: mXValue(aXValue), mYValue(aYValue), mZValue(aZValue)
{
MOZ_COUNT_CTOR(nsCSSValueTriplet);
}
nsCSSValueTriplet(const nsCSSValueTriplet& aCopy)
: mXValue(aCopy.mXValue), mYValue(aCopy.mYValue), mZValue(aCopy.mZValue)
{
MOZ_COUNT_CTOR(nsCSSValueTriplet);
}
~nsCSSValueTriplet()
{
MOZ_COUNT_DTOR(nsCSSValueTriplet);
}
bool operator==(const nsCSSValueTriplet& aOther) const {
return mXValue == aOther.mXValue &&
mYValue == aOther.mYValue &&
mZValue == aOther.mZValue;
}
bool operator!=(const nsCSSValueTriplet& aOther) const {
return mXValue != aOther.mXValue ||
mYValue != aOther.mYValue ||
mZValue != aOther.mZValue;
}
void SetAllValuesTo(const nsCSSValue& aValue) {
mXValue = aValue;
mYValue = aValue;
mZValue = aValue;
}
void Reset() {
mXValue.Reset();
mYValue.Reset();
mZValue.Reset();
}
bool HasValue() const {
return mXValue.GetUnit() != eCSSUnit_Null ||
mYValue.GetUnit() != eCSSUnit_Null ||
mZValue.GetUnit() != eCSSUnit_Null;
}
void AppendToString(nsCSSProperty aProperty, nsAString& aResult) const;
nsCSSValue mXValue;
nsCSSValue mYValue;
nsCSSValue mZValue;
};
// nsCSSValueTriplet_heap differs from nsCSSValueTriplet only in being
// refcounted. It should not be necessary to use this class directly;
// it's an implementation detail of nsCSSValue.
struct nsCSSValueTriplet_heap : public nsCSSValueTriplet {
// forward constructor
nsCSSValueTriplet_heap(const nsCSSValue& aXValue, const nsCSSValue& aYValue, const nsCSSValue& aZValue)
: nsCSSValueTriplet(aXValue, aYValue, aZValue)
{}
NS_INLINE_DECL_REFCOUNTING(nsCSSValueTriplet_heap)
};
// This has to be here so that the relationship between nsCSSValuePair
// and nsCSSValuePair_heap is visible.
inline nsCSSValuePair&
nsCSSValue::GetPairValue()
{
NS_ABORT_IF_FALSE(mUnit == eCSSUnit_Pair, "not a pair value");
return *mValue.mPair;
}
inline const nsCSSValuePair&
nsCSSValue::GetPairValue() const
{
NS_ABORT_IF_FALSE(mUnit == eCSSUnit_Pair, "not a pair value");
return *mValue.mPair;
}
inline nsCSSValueTriplet&
nsCSSValue::GetTripletValue()
{
NS_ABORT_IF_FALSE(mUnit == eCSSUnit_Triplet, "not a triplet value");
return *mValue.mTriplet;
}
inline const nsCSSValueTriplet&
nsCSSValue::GetTripletValue() const
{
NS_ABORT_IF_FALSE(mUnit == eCSSUnit_Triplet, "not a triplet value");
return *mValue.mTriplet;
}
// Maybe should be replaced with nsCSSValueList and nsCSSValue::Array?
struct nsCSSValuePairList {
nsCSSValuePairList() : mNext(nsnull) { MOZ_COUNT_CTOR(nsCSSValuePairList); }
~nsCSSValuePairList();
nsCSSValuePairList* Clone() const; // makes a deep copy
void AppendToString(nsCSSProperty aProperty, nsAString& aResult) const;
bool operator==(const nsCSSValuePairList& aOther) const;
bool operator!=(const nsCSSValuePairList& aOther) const
{ return !(*this == aOther); }
nsCSSValue mXValue;
nsCSSValue mYValue;
nsCSSValuePairList* mNext;
private:
nsCSSValuePairList(const nsCSSValuePairList& aCopy) // makes a shallow copy
: mXValue(aCopy.mXValue), mYValue(aCopy.mYValue), mNext(nsnull)
{
MOZ_COUNT_CTOR(nsCSSValuePairList);
}
};
// nsCSSValuePairList_heap differs from nsCSSValuePairList only in being
// refcounted. It should not be necessary to use this class directly;
// it's an implementation detail of nsCSSValue.
struct nsCSSValuePairList_heap : public nsCSSValuePairList {
NS_INLINE_DECL_REFCOUNTING(nsCSSValuePairList_heap)
};
// This has to be here so that the relationship between nsCSSValuePairList
// and nsCSSValuePairList_heap is visible.
inline nsCSSValuePairList*
nsCSSValue::GetPairListValue()
{
if (mUnit == eCSSUnit_PairList)
return mValue.mPairList;
else {
NS_ABORT_IF_FALSE (mUnit == eCSSUnit_PairListDep, "not a pairlist value");
return mValue.mPairListDependent;
}
}
inline const nsCSSValuePairList*
nsCSSValue::GetPairListValue() const
{
if (mUnit == eCSSUnit_PairList)
return mValue.mPairList;
else {
NS_ABORT_IF_FALSE (mUnit == eCSSUnit_PairListDep, "not a pairlist value");
return mValue.mPairListDependent;
}
}
struct nsCSSValueGradientStop {
public:
nsCSSValueGradientStop();
// needed to keep bloat logs happy when we use the TArray
// in nsCSSValueGradient
nsCSSValueGradientStop(const nsCSSValueGradientStop& aOther);
~nsCSSValueGradientStop();
nsCSSValue mLocation;
nsCSSValue mColor;
bool operator==(const nsCSSValueGradientStop& aOther) const
{
return (mLocation == aOther.mLocation &&
mColor == aOther.mColor);
}
bool operator!=(const nsCSSValueGradientStop& aOther) const
{
return !(*this == aOther);
}
};
struct nsCSSValueGradient {
nsCSSValueGradient(bool aIsRadial, bool aIsRepeating);
// true if gradient is radial, false if it is linear
bool mIsRadial;
bool mIsRepeating;
bool mIsToCorner;
// line position and angle
nsCSSValuePair mBgPos;
nsCSSValue mAngle;
// Only meaningful if mIsRadial is true
nsCSSValue mRadialShape;
nsCSSValue mRadialSize;
InfallibleTArray<nsCSSValueGradientStop> mStops;
bool operator==(const nsCSSValueGradient& aOther) const
{
if (mIsRadial != aOther.mIsRadial ||
mIsRepeating != aOther.mIsRepeating ||
mIsToCorner != aOther.mIsToCorner ||
mBgPos != aOther.mBgPos ||
mAngle != aOther.mAngle ||
mRadialShape != aOther.mRadialShape ||
mRadialSize != aOther.mRadialSize)
return false;
if (mStops.Length() != aOther.mStops.Length())
return false;
for (PRUint32 i = 0; i < mStops.Length(); i++) {
if (mStops[i] != aOther.mStops[i])
return false;
}
return true;
}
bool operator!=(const nsCSSValueGradient& aOther) const
{
return !(*this == aOther);
}
NS_INLINE_DECL_REFCOUNTING(nsCSSValueGradient)
private:
// not to be implemented
nsCSSValueGradient(const nsCSSValueGradient& aOther);
nsCSSValueGradient& operator=(const nsCSSValueGradient& aOther);
};
struct nsCSSCornerSizes {
nsCSSCornerSizes(void);
nsCSSCornerSizes(const nsCSSCornerSizes& aCopy);
~nsCSSCornerSizes();
// argument is a "full corner" constant from nsStyleConsts.h
nsCSSValue const & GetCorner(PRUint32 aCorner) const {
return this->*corners[aCorner];
}
nsCSSValue & GetCorner(PRUint32 aCorner) {
return this->*corners[aCorner];
}
bool operator==(const nsCSSCornerSizes& aOther) const {
NS_FOR_CSS_FULL_CORNERS(corner) {
if (this->GetCorner(corner) != aOther.GetCorner(corner))
return false;
}
return true;
}
bool operator!=(const nsCSSCornerSizes& aOther) const {
NS_FOR_CSS_FULL_CORNERS(corner) {
if (this->GetCorner(corner) != aOther.GetCorner(corner))
return true;
}
return false;
}
bool HasValue() const {
NS_FOR_CSS_FULL_CORNERS(corner) {
if (this->GetCorner(corner).GetUnit() != eCSSUnit_Null)
return true;
}
return false;
}
void Reset();
nsCSSValue mTopLeft;
nsCSSValue mTopRight;
nsCSSValue mBottomRight;
nsCSSValue mBottomLeft;
protected:
typedef nsCSSValue nsCSSCornerSizes::*corner_type;
static const corner_type corners[4];
};
#endif /* nsCSSValue_h___ */
|