Commit graph

5364 commits

Author SHA1 Message Date
Andreas Kling
17e9a5e0c5 LibWeb: Hoist an early return in Layout::BlockBox::paint() 2020-12-03 17:17:11 +01:00
Andreas Kling
194d7d3471 LibWeb: Hack the CSS parser to handle integer values (like z-index)
We were rejecting perfectly valid z-index values like '1000' since we
were passing all CSS values through the length parser and unit-less
lengths are not valid in this context.

It's yet another hack for the ad-hoc CSS parser (its days are numbered)
but this makes the top header links on google.com actually work. :^)
2020-12-03 11:46:10 +01:00
AnotherTest
c1c5225b72 LibRegex: Fix assertion when parsing '(?'
Found by oss-fuzz: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28186&q=label%3AProj-serenity
2020-12-03 10:51:56 +01:00
Andreas Kling
4fe987ba00 LibWeb: Don't layout twice for every InProcessWebView resize event
Calling Frame::set_size() already triggered a relayout, so calling
layout() again right after meant we did all the work one more time.

Not being dumb like this makes resizing significantly smoother. :^)
2020-12-02 23:50:19 +01:00
Andreas Kling
15e35b0d71 LibWeb: Layout viewport rect was lagging behind when resizing
Layout was using an outdated viewport rect that we set *after* doing
a layout due to resize. That meant that layout-in-response-to-resize
was always lagging behind the current size of the view.

The root of this problem was how Frame kept both a viewport rect
(with both scroll offset and size) and a frame size. To fix this,
only store the viewport scroll offset, and always use the frame size.
This way they can't get out of sync and the problem goes away. :^)

Fixes #4250.
2020-12-02 23:50:19 +01:00
Linus Groh
cc5be96724 LibJS: Use ArrayBuffer for typed array data
This is how the spec describes it, and it allows sharing data between
multiple typed arrays.
Typed arrays now support constructing from an existing ArrayBuffer,
and has been prepared for constructing from another typed array or
iterator as well.
2020-12-02 23:49:00 +01:00
Linus Groh
32571dfa53 LibJS: Add ArrayBuffer 2020-12-02 23:49:00 +01:00
Linus Groh
cf9da66b3e LibJS: Use Value::to_index() in typed array constructors 2020-12-02 23:49:00 +01:00
Linus Groh
eaa85969c4 LibJS: Add Value::to_{index,length,integer_or_infinity} abstract operations
We should pay more attention to using the well-defined abstract
operations from the spec rather than making up our own, often slightly
different rules. This is another step in that direction.
2020-12-02 23:49:00 +01:00
Linus Groh
6de4f1fcb3 LibJS: Add generic InvalidLength error type
We have multiple array types now, so ArrayInvalidLength has been
replaced with a generic InvalidLength.

Also fixes a small issue in the Array constructor, it should throw
RangeError for invalid lengths, not TypeError.
2020-12-02 23:49:00 +01:00
Ben Wiederhake
aec8983819 LibGfx: Accept BMP RLE of 255 repeated bytes
Previously, in the case of RLE4, parsing took suspiciously long.
What happened was that 'pixel_count' was 255, and 'i' was incremented
by *two* in each iteration, so the for-loop continued until the
entire output buffer was full, and then rejected the RLE data
as bogus.

This little diff allows pixel_count to reach 256, be greater than
pixel_count, and thus terminate the loop in the intended way.
2020-12-02 22:51:05 +01:00
Julian Offenhäuser
21977a2188 LibAudio: Allow loading sounds from memory
The Loader and WavLoaderPlugin classes now have methods for loading
from a ByteBuffer, in addition to streaming from disk.
2020-12-02 16:31:30 +01:00
Julian Offenhäuser
dff5983706 LibAudio: Move Audio::Buffer implementation into its own file 2020-12-02 16:31:30 +01:00
Julian Offenhäuser
1f47b01e3b LibAudio: Add generic Audio::Loader class
The Audio::Loader class is able to load different types of audio files
by using a generic plugin interface for all file formats. Every new
loader will have to derive from Audio::LoaderPlugin to provide a common
API.

This makes it easy to add support for more audio file formats in the future.
2020-12-02 16:31:30 +01:00
Linus Groh
0b086c759a LibJS: Move TypedArray length getter to prototype 2020-12-02 14:39:53 +01:00
Tom
f68115aba3 Taskbar: Wait on all waitable children in SIGCHLD handler
We need to call waitpid until no more waitable children are available.
This is necessary because SIGCHLD signals may coalesce into one when
multiple children terminate almost simultaneously.

Also, switch to EventLoop's asynchronous signal handling mechanism,
which allows more complex operations in the signal handler.
2020-12-02 12:57:25 +01:00
Linus Groh
ddaab598a7 LibJS: Add TypedArray.BYTES_PER_ELEMENT 2020-12-02 12:52:31 +01:00
Linus Groh
bb6bc70c5b LibJS: Add more tests for TypedArray 2020-12-02 12:52:31 +01:00
Linus Groh
3d05836a3e LibJS: Make TypedArray constructor (somewhat) spec-compliant
- Calling without 'new' is an error
- If the first argument is an object, we need a separate code path to
  initialize from TypedArray, ArrayBuffer, Iterable or Array-like
  object (marked TODO for now)
- Don't insert values into array if more than one argument is present
  (that's not part of the spec)
2020-12-02 12:52:31 +01:00
Linus Groh
1bff65c591 LibJS: Add ErrorType::ConstructorWithoutNew
...and use it in Proxy::call(), rather than having a specific error
type just for that.
2020-12-02 12:52:31 +01:00
Linus Groh
7fb299fe46 LibJS: Clean up TypedArray constructors and prototypes
The current implementation is not entirely correct yet. Two classes have
been added:
- TypedArrayConstructor, which the various typed array constructors now
  inherit from. Calling or constructing this class (from JS, that is)
  directly is not possible, we might want to move this abstract class
  functionality to NativeFunction at a later point.
- TypedArrayPrototype, which the various typed array prototypes now have
  as their own prototype. This will be the place where most of the
  functionality is being shared.

Relevant parts from the spec:

22.2.1 The %TypedArray% Intrinsic Object
The %TypedArray% intrinsic object:
- is a constructor function object that all of the TypedArray
  constructor objects inherit from.
- along with its corresponding prototype object, provides common
  properties that are inherited by all TypedArray constructors and their
  instances.

22.2.2 Properties of the %TypedArray% Intrinsic Object
The %TypedArray% intrinsic object:
- has a [[Prototype]] internal slot whose value is %Function.prototype%.

22.2.2.3 %TypedArray%.prototype
The initial value of %TypedArray%.prototype is the %TypedArray%
prototype object.

22.2.6 Properties of the TypedArray Constructors
Each TypedArray constructor:
- has a [[Prototype]] internal slot whose value is %TypedArray%.

22.2.6.2 TypedArray.prototype
The initial value of TypedArray.prototype is the corresponding
TypedArray prototype intrinsic object (22.2.7).

22.2.7 Properties of the TypedArray Prototype Objects
Each TypedArray prototype object:
- has a [[Prototype]] internal slot whose value is %TypedArray.prototype%.

22.2.7.2 TypedArray.prototype.constructor
The initial value of a TypedArray.prototype.constructor is the
corresponding %TypedArray% intrinsic object.
2020-12-02 12:52:31 +01:00
Ben Wiederhake
453c63fd04 LibGfx+BMP: Remove set_remaining, fix size check
The set_remaining method is inherently dangerous. It can be avoided easily here,
so let's do that.
2020-12-02 10:46:40 +01:00
Ben Wiederhake
36daeee34f LibGfx: Fix BMP mask detection off-by-one
Also, since the loops can be replaced by a little bit-twiddling,
call ctz() directly. This might be a bit faster, or it might not.
2020-12-02 10:46:40 +01:00
Ben Wiederhake
6be9b6349d LibGfx: Prevent potential heap-overflow in BMP non-RLE 2020-12-02 10:46:40 +01:00
Ben Wiederhake
461bdeda2b LibGfx: Fix heap-overflow in BMP RLE
The field previously named 'data_size' apparently was misunderstood.
2020-12-02 10:46:40 +01:00
Ben Wiederhake
d66b0683eb LibGfx: Distinguish between RGB data and file data
This was confusing and has hidden a bug, so let's change it.
2020-12-02 10:46:40 +01:00
Ben Wiederhake
9ff001c4d3 LibGfx: Avoid ByteBuffer assertions for huge bitmaps 2020-12-02 10:46:40 +01:00
Ben Wiederhake
d6c0776b45 LibGfx: Reject OS/2 BMP files with invalid bpp values 2020-12-02 10:46:40 +01:00
Ben Wiederhake
bd6d365166 LibGfx: Disallow RLE8 compression for 16bpp BMPs
Also, disallow similar silly combinations. Technically, we support *more* than
the definition seems to require.

For future reference:
https://archive.org/details/mac_Graphics_File_Formats_Second_Edition_1996/page/n607/mode/2up
Book page 580 (pdf page 608)
2020-12-02 10:46:40 +01:00
Ben Wiederhake
e3e2eecc33 LibGfx: Fix BMP compression checks
- OSv2 DIBs were not checked at all
- Regular Info DIBs had the compression checked after applying a 0xFF mask,
  which let many invalid compression values pass.
- There may still be a separate latent bug that causes mask_sizes and mask_shifts to be empty.
2020-12-02 10:46:40 +01:00
Ben Wiederhake
031814796e LibGfx: Recognize incomplete BMP colormaps 2020-12-02 10:46:40 +01:00
Ben Wiederhake
a4b207e04f LibGfx: Mark static method as static 2020-12-02 10:46:40 +01:00
xspager
57c9f77921 LibC: Add flag SO_BROADCAST so we can at least build programs that use it 2020-12-02 10:45:38 +01:00
AnotherTest
d1a5b4d906 LibWeb: Complete the URL in href_setter() before trying to load it
Also note that setting an invalid URL here should raise a JS exception
(and not navigate away).
Fixes #4301.
2020-12-02 10:08:29 +01:00
Andreas Kling
3565d3c60c LibJS: Add six typed arrays (signed and unsigned 8/16/32-bit)
This patch adds six of the standard type arrays and tries to share as
much code as possible:

- Uint8Array
- Uint16Array
- Uint32Array
- Int8Array
- Int16Array
- Int32Array
2020-12-01 21:05:25 +01:00
Andreas Kling
93feb7a81f LibJS: Have Uint8ClampedArray delegate OOB accesses to JS::Object
Uint8ClampedArray itself only cares about legitimate in-bounds accesses
since that's what where the specialization happens.
2020-12-01 17:12:04 +01:00
Andreas Kling
f2c7caf2db LibJS: Zero out memory in newly allocated Uint8ClampedArray objects 2020-12-01 17:06:48 +01:00
Andreas Kling
7c4c706ebe LibWeb: Implement Document.getElementsByClassName()
Note that we're taking a shortcut here and returning the elements as an
Array instead of HTMLCollection. One day we'll have to bite the bullet
and deal with HTMLCollection, but not today.
2020-12-01 16:53:10 +01:00
Andreas Kling
09da5f7263 LibWeb: Hack the CSS parser to skip over UTF-8 BOM
This is a rather ugly hack that fixes CSS parsing on websites where we
get a stylesheet that starts with a BOM.
2020-12-01 16:53:10 +01:00
Andreas Kling
bbcc71fec4 LibWeb: Parse :before and :after pseudo-elements
Note that this is the old CSS2 syntax, we don't support the CSS3 syntax
just yet. Also we don't actually implement the pseudo-elements, this is
really just to make the selectors distinct from the same ones without
these pseudo-elements.
2020-12-01 16:53:10 +01:00
Nico Weber
eef30bb05e LibGfx: Add some validation to BMPLoader
These changes fixed various asserts when I ran the fuzzer locally a
while ago.
2020-12-01 16:48:22 +01:00
Andreas Kling
6ec9901d1b LibELF: Fix busted validation of section header location 2020-12-01 13:18:32 +01:00
Ben Wiederhake
f82b2948cf Meta: Fix BMP_DEBUG, and always build on CI 2020-12-01 11:06:53 +01:00
Andrew Kaster
3f808b0dda LibELF+Kernel: Validate program headers in Image::parse
This should catch more malformed ELF files earlier than simply
checking the ELF header alone. Also change the API of
validate_program_headers to take the interpreter_path by pointer. This
makes it less awkward to call when we don't care about the interpreter,
and just want the validation.
2020-12-01 09:58:21 +01:00
Andrew Kaster
8297698a3a LibELF: Catch more Shenanigans in ELF files
Check for even more weird program header/section header offsets
and sizes. Namely, the ones encountered in #4221 :)
2020-12-01 09:58:21 +01:00
Linus Groh
48c19cdb06 LibJS: Remove ProxyPrototype
Proxy is an "exotic object" and doesn't have its own prototype. Use the
regular object prototype instead, but most stuff is happening on the
target object anyway. :^)
2020-12-01 09:54:37 +01:00
AnotherTest
6394720c87 LibRegex: Don't try to consume the escaped character if at EOF
Fixes assert on e.g. `new RegExp("\\")`
2020-11-30 17:45:05 +01:00
Tom
046d6855f5 Kernel: Move block condition evaluation out of the Scheduler
This makes the Scheduler a lot leaner by not having to evaluate
block conditions every time it is invoked. Instead evaluate them as
the states change, and unblock threads at that point.

This also implements some more waitid/waitpid/wait features and
behavior. For example, WUNTRACED and WNOWAIT are now supported. And
wait will now not return EINTR when SIGCHLD is delivered at the
same time.
2020-11-30 13:17:02 +01:00
Tom
e0e26c6c67 LibCore: Don't wait for negative amount of time 2020-11-30 13:17:02 +01:00
AnotherTest
b2d698472b LibGfx: Add a 'Point::absolute_relative_distance_to(Point)'
This is significantly more elegant than subtracting the points and
constructing another point from the abs() of their individual
components.
2020-11-30 12:07:45 +01:00