This removes about 2/3 of the occurrences of nsXPIDLString in the tree. The
places where nsXPIDLStrings are null-checked are replaced with |rv| checks.
The patch also removes a couple of unused declarations from
nsIStringBundle.idl.
Note that nsStringBundle::GetStringFromNameHelper() was merged into
GetStringFromName(), because they both would have had the same signature.
Currently, these two functions take nsIFormControl* as argument, but we only
pass HTMLInputElements to it, so we can change it to take HTMLInputElement* to
avoid overhead in casting.
MozReview-Commit-ID: CHG0F3xWCVF
In order to speed up Required/IsRequired(), instead of querying for the
@required attribute, we're now using the NS_EVENT_STATE_REQUIRED flag to know
whether an element's value is required.
For this to work correctly, we need to set NS_EVENT_STATE_REQUIRED earlier,
that is, in AfterSetAttr(), before any consumer of IsRequired(). We also need
to update or clear our required states when input type changes, since we may
have changed from a required input type to a non-required input type or
vice versa.
Note that NS_EVENT_STATE_REQUIRED/OPTIONAL is now part of the
EXTERNALLY_MANAGED_STATES.
MozReview-Commit-ID: Bjiby9GqJSB
IsRequired() helper function returns the current 'required' state of the
element, that is, whether its required attribute is set or not. This will be
used only for input elements that @required applies.
In order to speed up IsDisabled(), instead of querying for the @disabled
attribute, we're now using the NS_EVENT_STATE_DISABLED flag to know whether an
element is disabled.
It is safe to use the NS_EVENT_STATE_DISABLED flag for the following reasons:
- For form elements, nsGenericHTMLFormElement::IsDisabled() is only called on
form elements that can be disabled; form elements that can't be disabled
overrides IsDisabled() to return false directly.
And, before this patch, NS_EVENT_STATE_DISABLED flag is set by
nsGenericHTMLFormElement::IntrinsicState() if and only if IsDisabled() in all
cases when CanBeDisabled() is true, and when CanBeDisabled() is false then
IsDisabled() is always false and the flag is not set.
- For non form elements, optgroup and option have the flag matching
IsDisabled(). Note that option's IsDisabled() should also refer to optgroup's
(if it exists) disabled state, which was not done before this patch.
For this to work correctly, we need to set NS_EVENT_STATE_DISABLED earlier,
that is, in AfterSetAttr(), before any consumer of IsDisabled().
We also need to update the flag whenever the element's parent (e.g. fieldset or
optgroup) disabled state changes and when moving into/out of a parent
container.
Note that NS_EVENT_STATE_DISABLED/ENABLED is now part of the
EXTERNALLY_MANAGED_STATES.
MozReview-Commit-ID: KSceikeqvvU
Most of the names passed to nsIStringBundle::{Get,Format}StringFromUTF8Name
have one of the two following forms:
- a 16-bit C string literal, which is then converted to an 8-bit string in
order for the lookup to occur;
- an 8-bit C string literal converted to a 16-bit string, which is then
converted back to an 8-bit string in order for the lookup to occur.
This patch introduces and uses alternative methods that can take an 8-bit C
string literal, which requires changing some signatures in other methods and
functions. It replaces all C++ uses of the old methods.
The patch also changes the existing {Get,Format}StringFromName() methods so
they take an AUTF8String argument for the name instead of a wstring, because
that's nicer for JS code.
Even though there is a method for C++ code and a different one for JS code,
|binaryname| is used so that the existing method names can be used for the
common case in both languages.
The change reduces the number of NS_ConvertUTF8toUTF16 and
NS_ConvertUTF16toUTF8 conversions while running Speedometer v2 from ~270,000 to
~160,000. (Most of these conversions involved the string
"deprecatedReferrerDirective" in nsCSPParser.cpp.)
We should consider step and step base when deciding whether to show second and
millisecond field, since step and step base can affect the valid time intervals,
and the valid intervals may have second/millisecond part.
MozReview-Commit-ID: H4mJvLTvBOM
Unfortunately, nsGenericHTMLElement::GetAssociatedEditor() cannot use concrete classes because it may return nsIEditor which is set via nsIDocShell.editor. The editor set to nsIDocShell may be implemented by JS since nsIEditor isn't marked as builtinclass.
MozReview-Commit-ID: 6GY9LOYp4hM
Using concrete class rather than interface classes (nsI*Editor) will allow to reduce QI and some virtual calls. Therefore, Editor classes should be used as concrete class as far as possible.
Unfortunately, if classes referring editor are initialized via scriptable interface, we cannot do this because nsI*Editor is still not marked as builtinclass. Therefore, their editor may be implemented by JS. E.g., inline nsIInlineSpellChecker.init() and nsIDocShell.editor. Such remaining cases should be fixed after nsI*Editor classes are marked as builtinclass.
Note that this patch also creates nsIdentifierMapEntry.h which is separated from nsDocument.h because ShadowRoot.h needs the class but exposing nsDocument.h to the global and includes it causes bustage on Linux and Android. Therefore, for fixing the include hell, this patch touches them and ContentChild.cpp.
MozReview-Commit-ID: i6fLWw6Qeo
The old setup unset the HasDirAuto flag when changing the "dir" attr away from
the value "auto", and reset it when setting it to "auto", before calling
SetDirectionalityFromValue. But SetDirectionalityFromValue doesn't depend on
the HasDirAuto flag, and that flag is set correctly for us by nsGenericElement,
so we don't have to manage it ourselves at all.
The callers outside BeforeSetAttr/AfterSetAttr just preserved the flag value, so
there's no behavior change at all for them.
MozReview-Commit-ID: AC8uV3cOtH2
If all fields in date/time input box are available but the input element's
value is empty, implies that it has been sanitized. In this case, we'll set the
'bad input' validity state. If any of the fields is cleared, we'll remove the
'bad input' validity state, as incomplete field does not imply 'bad input'.
MozReview-Commit-ID: 4EBpH5CWqXM
In this patch, we change it so that we always set the input element's value
once all fields are available and let DOM HTMLInputElement sanitize it. The
value after sanitization is not updated in the displayed input box, but may
display an error message (this will be done in Part 2) if needed.
Also, when any of the field's value is deleted, we will set input element's
value back to the empty string, so that a value is not accidentally submitted.
MozReview-Commit-ID: 9NAL8UlkoBK
We get previous input.value twice in HTMLInputElement::SetValue and nsTextEditorState::SetValue when setting input.value. Since nsTextEditorState::GetValue uses DocumentEncoder, it is expensive. So we should use old value as parameter of nsTextEditorState::SetValue if possible.
MozReview-Commit-ID: A1UPfETTVCn
HTMLInputElement::IsValueEmpty uses DocumentEncoder when input element has focus. DocumentEncoder is slow, so we should use fast path (nsTextEditorState::HasNonEmptyValue) to check whether value is empty.
MozReview-Commit-ID: 1JxAeZ6z5A4
In order to facilitate the movement of code with side-effects called by Element::SetAttr to Element::BeforeSetAttr and Element::AfterSetAttr, Element::AfterSetAttr should have access to the old value of the attribute. This includes information about whether there was previously a value set or not.
Accomplishing this involved passing an additional argument through functions that find and change the old attribute value in order to ensure that we can differentiate between an empty old value and an absent old value (attribute was not set).
Note that while I tried to ensure that accurate values (and their absence) are reported to Element::AfterSetAttr, I largely ignored SVG. While the old value reported for SVG values should be however accurate the value already being reported to SetAttrAndNotify was, SVG elements do not currently report unset values properly because they will never pass a null pointer to SetAttrAndNotify.
MozReview-Commit-ID: K1mha8CNFZP
This part is mainly to mark the channel as urgent-start if src related
attributes in HTMLImageElement and HTMLInputElement is set and the channel is
open due to user interaction. Unfortunately, we cannot just check the event
state just after creating channel since some loading image tasks will be queue
and execute in stable state. Thus, I store the event state in elements and
pass it to the place where create the channel.
MozReview-Commit-ID: GBdAkPfVzsn
