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.
Flash ignores mismatched end tags (i.e. end tags with a missing/different
corresponding start tag). `quick-xml` checks end tag mismatches by
default, but it cannot recover after encountering one.
Commit 7e20543578 already disabled
`quick-xml`'s check, but that caused mismatched `Event::End` to be
handled, which may empty `format_stack` and later panic on
`format_stack.last().unwrap()`.
Thus, check for mismatched end tags ourselves, in a similar manner
of `quick-xml`, but in a recoverable way.
* Have `DefineFunction` and `DefineFunction2` go through the same
code path by implementing `From<DefineFunction>` for
`DefineFunction2`.
* Change `register` to a `Option<NonZeroU8>` for size optimization.
* Add `function::Param` to store param info instead of a tuple.
Use a struct for all variants of `avm1::Action`.
This makes the style more consistent instead of using a mix of
struct and tuple variants, and allows the data to be easily passed
around.
Handle strings, numbers and DisplayObject targets (not just MovieClips).
To support non-MovieClip targets, turn `clip.as_movie_clip().unwrap()`
to `if let Some(mc) = clip.as_movie_clip()` in `Loader`.
`onLoadInit` is queued after all `DoAction`s of the loaded clips.
That is, if clip1, clip2, clip3 are loaded in the same frame
(in this order), then actions will be executed as follows:
* `DoAction` of clip3
* `DoAction` of clip2
* `DoAction` of clip1
* `onLoadInit` of clip3
* `onLoadInit` of clip2
* `onLoadInit` of clip1
Previously, those were incorrectly executed as follows:
* `DoAction` of clip3
* `onLoadInit` of clip3
* `DoAction` of clip2
* `onLoadInit` of clip2
* `DoAction` of clip1
* `onLoadInit` of clip1
An MP3 "stream" sound can sometimes have frames without a
SoundStreamBlock tag, despite the SWF spec saying there should
at least be a tag with 0 samples on each frame. Ruffle would
stop the sound in this case, but the Flash Player may or may not
stop thje sound in the audio depending on the number of "empty"
frames. This could cause the audio to stutter as it continuously
stopped and restarted.
Handle this by keeping track of how many samples we've encountered
in MP3 blocks, and deducting the amount of samples consumed by each
timeline frame. Stop the sound if we run out of samples, as opposed
to when we hit a frame without a SoundStreamBlock.
Fixes#3817.
The first argument of all events is the target MovieClip. It was
incorrect.
Also, `onLoadComplete` accepts an additional `httpStatus` argument.
Stub it to 0.
Remove unnecessary calls to `introduce_loader_handle`, which are
dominated by `add_loader` that already calls it. As a result, `add_loader`
remained the only function to call `introduce_loader_handle`, so inline
it there.
Since they are identical (they both load the URL as a string, then
fire the `onHTTPStatus` and `onData` events). In fact, AVM1's
`XML.prototype.load` and `LoadVars.prototype.load` functions are
both defined as `ASnative(301, 0)`, so they invoke the same native
code under the hood.
The path starting position was not being set correctly after a
moveTo command, which could cause stray strokes to appear in the
drawing.
Fixes#5598, #5768, #5957.
`XmlNode::is_as2_compatible` returns `false` for `XmlNodeData::DocType`
nodes, which means they are not included in string representations of
XML documents, and they cannot be traversed using the DOM methods.
So don't create those when parsing an XML from string, but still
store the `DOCTYPE` declaration string on the `XmlDocument`, which
is accissible through the `.docTypeDecl` property.
`XmlNode::is_as2_compatible` returns `false` for `XmlNodeData::Comment`
nodes, which means they are not included in string representations of
XML documents, and they cannot be traversed using the DOM methods.
So simply don't create those when parsing an XML from string.
Now that `replace_with_str` is defined in `XmlDocument`, there is
no need anymore for a separate function that handles nodes which have
document-wide implications.
David Wendt