An exception thrown by one event handler shoud not prevent other event
handlers from running on this same event. Some SWFs like Wonderputt
depend on this behavior, as they have buggy event handlers that throw
errors.
FP allows code like
`class Foo { static var INSTANCE: Foo = new Foo(); }`
However, this breaks our current property type coercion setup -
we cannot resolve the type `Foo` when setting the property `INSTANCE`,
since `Foo` is still being constructed.
Fortunately, we can perform this 'coercion' by just checking if
the object's class name and domain match the type name and domain
of the property.
Previously, we would create a fresh `LoaderInfo` object each
time the `loaderInfo` property was accessed. However, users can
add event handlers to a `LoaderInfo`, so we need to create and
store exactly one `LoaderInfo` object per movie (and stage).
To verify that we're correctly handling the storage of `LoaderInfo`,
I've implemented firing the "init" event. This required a new
`on_frame_exit` hook, so that we can properly fire the "init"
event after the "exitFrame" for the initial frame but before
the "enterFrame" of the next frame.
The current 'setInterval/setTimeout' implementation is
moved to 'core/src/timers.rs', and now works with both
AVM1 and AVM2 objects. The `flash.utils.Timer` class is implemented
mostly in ActionScript, with minimal modifications to the actual
Ruffle timer code.
* avm2: implement string replace where pattern is string and replacement is a function
* * removed unnecessary vec!
* fixed "no newline at the end of file"
* avm2: implement string.replace(...) with fn, for now regex only.
* string - added path for replacing regex with fn (replacing string
with fn is still unimplemented)
* regex - factored out common replace logic for when replacement is
a string and when it is a function
* added tests
* Addressed review comments
* removed tinkering cruft; formatting
* addressed review comments
* avm2: implement string.split for regex
* Compressed the testing for regexp and unwrapping thereof
* * Moved the split logic into the regex object
* Factored out a method for utf-16 matching
* Added tests
* formatting
* * replaced manual counting with storage.length()
* clippy cleanup
* Address review comments
* fix import path for WString
* remove redundant variable in return statement
* error passing via '?' instead of unwrap()
Based on the work in #6717, plus additional adaptions mentioned in
https://github.com/gfx-rs/wgpu/blob/master/CHANGELOG.md#wgpu-013-2022-06-30,
and more not-mentioned but required changes.
Also bump `wasm-bindgen` to `0.2.81` (along with its helper crates), as
required by the new `wgpu` version.
Note that I don't fully understand some of the required changes, notably:
* `wgpu::PresentMode::Mailbox` no longer works on my machine (Windows 11) -
The `wgpu` documentation says that `wgpu::PresentMode::Fifo` is the
only guaranteed to be supported, so I switched over to it instead.
* `self.staging_belt.recall()` doesn't return a `Future` anymore -
I assume it became synchronous so I simply removed the `executor`
from there.
Properties can be declared with a type
(e.g. `var foo:MyClass = new MyClass();`). When
`set_property`/`init_property` is invoked for that property,
the VM will attempt to coerce the value to the provided type,
throwing an error if this fails. This can have observable behavior
consequences - if a property has type `integer`, for example, then
storing a floating point `Number` to that property will cause the
value to be coerced to an integer. Some SWFs (e.g. 'Solarmax') rely
on this behavior in order to implicitly coerce a floating point value
that's later used for array indexing.
This PR implements property type coercions in Ruffle. There are several
important considerations:
* The class lookup for property types needs to be done lazily, since
we can have a cycle between two classes (e.g. `var prop1:Class2;`
and `var prop2:Class1` in two different classes).
* The class lookup uses special rules (different from
`resolve_definition`), and does *not* use `ScopeStack/`ScopeTree`
This means that a private class can specified as a property name -
the lookup will succeed without using a scope, even though
`flash.utils.getDefinitionByName` would fail with the same name
* The specialized 'Vector' classes (e.g "Vector$int") can be used
as property types, even though they cannot be lookup up normally.
Some Ruffle class definitions were previously using nonexistent
classes as property types (e.g. "BareObject") - these are fixed
in this PR.
- Handle the case where both preload aud suppress flags are
set for the same variable;
- Remove `arguments` field in `Activation`; instead use a normal
local definition;
- When `suppress_this` is set, inherit the `this` value from parent
activation. (This isn't entirely correct, as FP's `this` is mutable
and seems to be part of the scope chain, but this would require a
larger refactoring)
* AVM2: Implement escape()
* chore: Fix formatting
* avm2: Escape resolves non strings to null and use push to append
* chore: Fix nits
* avm2: Escape should coerce objects, add early returns
Previously image tests had an image per platform (i.e. Linux, Windows).
However, due to containing the LLVM version in their name, which
constantly updates on CI, and the fact that those images are actually
identical, unify them into a single `expected.png` image.
The `render_list` for a container always contains all of the children
under both AVM1 and AVM2 - howver, the depth_list may not contain
some children under AVM2.
When we're not performing some AVM1-specific operation
(e.g. `getInstanceAtDepth`, or dumping out AVM1 variables),
we should be using the render list.
Previously, there was an off-by-one bug in `get_enumerant_name`,
which caused us to produce a spurious 'null' as a key.
However, the 'dictionary_foreach' test only checked that certain
keys were present, so the presence of an additional key didn't break
the test.
This commit makes Dictionary enumerants behave in the same way as
Array enumerants - all of the object-specific enumerants
(in this case, the non-primitive dicitonar keys) come first,
followed by 'base' enumerants from ScriptObject (in this case,
primtive/String keys). Additionally, `setPropertyIsEnumerable` is now
ignored for `Dictionary`, consistent with Flash's behavior.
The `dictionary_foreach` test is updated to print out all of
the keys when inspecting the dictionary. Since the enumeration
order is unstable (under both Flash and Ruffle) due to the dependency
on pointer hashing, the test sorts the keys before printing them.
This ensures that we get stable output which is consistent between
Ruffle and Flash.
Flash Player allows this, and returns the path to the root SWF file.
The test only checks that the returned path contains 'test.swf',
to avoid depending on a platform-specific path.
The loop to search for a `non_hole` was missing
a `break;`, so it would actually find the *first*
non-hole, rather than than the last. This was not caught
by the test, since there was only one "real" element
in the array (the other one was set on 'Array.prototype')
A method called with `super` is always an instance method,
so we should be using `instance_scope` for consistency with
`call_property`. This fixes a bug where a method cannot
access static class members (via `getlex`) when called bia
`super.method()`
This PR implements the `URLLoader` class, allowing AVM2 scripts
to load data from a URL. This requires several other related
classes (`URLLoaderDataFormat`, `URLRequest`, `IOError`) to be
implemented as well.
Currently implemented:
* Fetching from URLs using the 'navigator' backend
* The `text` and `binary` data formats (which store data
in a `String` or `ByteArray` respectively)
* The `open`, `complete`, and `ioError` events
* The `bytesLoaded`, `bytesTotal`, and `data` properties
Not yet implemented:
* The HTTP and security events
* All of the properties of `IOError`
* The properties on `URLRequest` (besides `url`)
* The "variables" data format
This should be enough to get some basic uses of `URLLoader` working
(e.g. simple GET requests to a particular website).
Note that in Flash's `playerglobal`, the `URLLoader` class is just
a think wrapper around the more general `URLStream`. However,
implementing `URLStream` will require changes to `Navigator``
to support notifications when data arrives in the stream. When
that happens, we should be able to re-use a large amount of the
code in this PR.
Testing under Flash shows that methods can be considered 'unchecked'
(allowing them to be called with more arguments than declared
parameters) even if they have a declared return type.
This is relied on by SteamBirds, which registers an event handler
which takes 0 parameters and an explicitly declared return type
I intend to share this code across both Ruffle and FlashTAS (another project that allows running input tests on Flash Player), hence why it's a separate library from Ruffle's tests crate.
This re-uses the logic we have for handling AVM1's `ExternalInterface`.
For now, serialization/deserialization of non-array objects is
left unimplemented.
Make it a thin abstraction layer over either the `futures` or `wasm-bindgen-futures`
crates, as already done in `render/wgpu/src/uniform_buffer.rs`,
instead of a hand-made single-thread executor.
Ideally this would also be usable on desktop, but I didn't manage to
get `LocalPool` working with `winit` (it needs to post a task to the
`EventLoopProxy` as a wake procedure).
Previously there were 3 implementations of `LocaleBackend`:
`DesktopLocaleBackend`, `WebLocaleBackend` and `NullLocaleBackend`.
While `DesktopLocaleBackend`, `WebLocaleBackend` were identical,
`NullLocaleBackend` always returned a fixed date/time for tests
determinism.
Unify them in a single file, and use `cfg!(test)` and a new dedicated
`deterministic` feature to decide whether to mock date/time or not.
This should not cause any behavioral changes.
This also rearranges some things about how we construct events, because `MouseEvent` has different defaults from `Event`. When we finally support parameter metadata on methods we should remove that code.
We also remove the `value_of` code on `EventObject` as that was a mistake. Events don't do anything special in there and I misinterpreted the test results the first time around.
SWFv5 always calls `Object.valueOf` at least once and sometimes
twice in the Equals2 op, even when comparing two Objects.
For example, `Object(1) == Object(1)` is true in SWFv5 but false
in SWFv6.
Consolidate several cases and fix some issues:
* Object-to-primitive comparison always goes through `valueOf`.
* `Object(undefined) == undefined` is true; this will coerce
to a bare object with no `valueOf`, resulting in
`undefined==undefined`.
* `{valueOf:function() { return NaN; }} == NaN` is true.
When creating a scope for a closure, any `with` scopes were being
filtered out, but this was incorrect; `with` scopes are still on
the scope chain when the function is called.
* avm2: Implement JSON.parse
* avm2: Add AvmSerializer for serializing AVM values to JSON
* avm2: Add support for replacer objects
* avm2: use *const ObjectPtr for object stack
* avm2: Add support for space parameter is JSON.stringify
* avm2: Refactor AvmSerializer design
* avm2: Restrict spaces to a maximum of 10
* avm2: Refactor map_value
* tests: Add JSON.parse test
* chore: Appease clippy
* avm2: Check if value is undefined before inserting
* tests: Add test for JSON.stringify
* tests: Improve JSON.stringify test
* chore: Replace map_or with explicit match statements
* chore: Use QName::dynamic_name
* avm2: Use Object<'gc> instead of ObjectPtr
* chore: Use explicit match in deserialize_value
* Rebase fixes
Co-authored-by: Adrian Wielgosik <adrian.wielgosik@gmail.com>
This method has an odd flaw that we don't emulate yet. Actually, two:
1. Precision limits that are specific to the chosen radix
2. Occasional and intermittent corruption in the resulting 0 padding; usually manifesting as `x`, `W`, or `°` characters
The first could be emulated, but I've chosen not to... because the second thing listed not only isn't really possible to emulate, but actively prohibits approx-testing the results. So I'm marking the test as ignored and hoping no movies actually rely on the precision limits in `toString`.
For some reason, in Flash Player, `RTQName`s that use a dynamic namespace do *not* pick the same namespace that you would ordinarily get if declaring or referencing that namespace statically. My suspicion is that this has something to do with E4X namespaces, which are flagged as a separate space from ES4 namespaces.
* avm2: Properly make all classes an instance of `Class`.
Also, does this technically mean that `Class` is a metaclass?
* avm2: Remove `Function::from_method_and_proto` as it will no longer be needed
* avm2: Ensure builtin classes are also instances of `Class`.
This requires tying a veritable gordian knot of classes; everything needs to be allocated up-front, linked together, and then properly initialized later on. This necessitated splitting the whole class construction process up into three steps:
1. Allocation via `from_class_partial`, which does everything that can be done without any other classes
2. Weaving via `link_prototype` and `link_type`, which links all of the allocated parts together correctly. This also includes initializing `SystemClasses` and `SystemPrototypes`.
3. Initialization via `into_finished_class`, which must be done *after* the weave has finished.
Once complete you have core classes that are all instances of `Class`, along with prototypes that have their usual legacy quirks.
Note that this does *not* make prototypes instances of their class. We do need to do that, but doing so breaks ES3 legacy support. This is because we currently only work with bound methods, but need to be able to call unbound methods in `callproperty`.
* tests: Add a test for all core classes' instance-of relationships
This also changes the `bitmapdata_constr` test slightly to use a different starting value. Our premultiplied alpha calculations generate slightly different values from Flash Player which trips the test.
This one was rather tough to test, as I actually can't generate ABCs in Animate CC that reference these classes. I instead had to modify a compiled SWF to open the package-internal namespace that these pre-specialized classes exist in.
* tests: add tests for scroll
* avm1: implement scroll, maxscroll, bottomScroll
* chore: fmt
* docs: note that scroll is 1-based
* fix: non-word wrapped text with manual breaks is scrollable
* chore: move magic number to const
* chore: avoid mut with extra if
* chore: moving clamping behaviour into core
* refactor: eagerly compute line data
* fix: make scroll work when text is aligned right
* chore: clippy
* docs: add more information about line_data
* tests: add more test cases for scroll
In Flash, the trace actually occurs on the 2nd frame. Frame 1 is
when the clips are actually loaded. Previously this inaccurately
happened on frame 1 in Ruffle, but now happens correctly on frame
2.
When reading an SWF, search for FileAttributes and
SetBackgroundColor and return this along with the header data
because it's useful (in particular, the AS3 flag).
If a textfield was created with a variable binding, and the variable
already existed, the initial text of the textfield is set to the
variable value. However, this was not obeying the HTML setting of
the text field, so HTML tags were mistakenly shown in some content.
Fixes#3522.