Before this patch, the `AutoFrameSelectionBatcher` helper class would always call `NotifySelectionListeners()` for `SelectionType::eNormal`, even if the selection may have originated from Custom Highlight.
This patch moves the information that a change has occurred during batching from `nsFrameSelection` into the `Selection` instance, thus keeping the information per instance instead of globally.
When batching ends, `Selection::NotifySelectionListeners()` is called for all `Selection` instances depending on the flag.
Additionally, `Selection::NotifySelectionListeners()` is updated so that some Listeners (AutoCopyListener, SelectionChangeEvent, AccessibleCaret) are only notified for `SelectionType::eNormal`.
Differential Revision: https://phabricator.services.mozilla.com/D210130
This patch implements the `::target-text` pseudo element.
Similarly to the Custom Highlight API, this is done implementing
a new Selection type.
Differential Revision: https://phabricator.services.mozilla.com/D195687
This patch implements the `::target-text` pseudo element.
Similarly to the Custom Highlight API, this is done implementing
a new Selection type.
Differential Revision: https://phabricator.services.mozilla.com/D195687
This patch implements the `::target-text` pseudo element.
Similarly to the Custom Highlight API, this is done implementing
a new Selection type.
Differential Revision: https://phabricator.services.mozilla.com/D195687
This patch implements the `::target-text` pseudo element.
Similarly to the Custom Highlight API, this is done implementing
a new Selection type.
Differential Revision: https://phabricator.services.mozilla.com/D195687
The methods are in `nsCaret`, `nsFrameSelection` and `dom::Selection`. That
makes harder to read, and they are called each other, so, they are reused for
different purpose. Therefore, it must be better to move them into a new class.
Then, the name differences may become more unclear. If you think so, feel free
to request renaming some methods of them.
Differential Revision: https://phabricator.services.mozilla.com/D197288
A caller of it should be independent from `nsFrameSelection` instance.
Therefore, I'd like to separate it to static method part and instance method
part.
Differential Revision: https://phabricator.services.mozilla.com/D197287
Its name sounds a getter, but it updates the caret association hint of
`nsFrameSelection`, but at least, one of its callers,
`nsFrameSelection::PeekOffsetForCaretMove` shouldn't update it because it
just scans the previous or next position for caret.
Then, `Selection::GetPrimaryFrameForFocusNode` can be implemented with a
new static method which is useful for `PeekOffsetForCaretMove` when it becomes
a static method.
Differential Revision: https://phabricator.services.mozilla.com/D197286
Oddly, it updates `nsFrameSelection` instance and some root callers may depend
on that. Therefore, this patch keep updating `nsFrameSelection` in the callers.
Differential Revision: https://phabricator.services.mozilla.com/D197284
Nobody shares an instance of `nsFrameIterator`. Therefore, we can make it
non-refcountable. Additionally, `nsVisualIterator` is not required because
it overrides only 4 methods which are really simple. So, once we merge it
into `nsFrameIterator`, we can allocate it in the stack.
Differential Revision: https://phabricator.services.mozilla.com/D197144
The class is used only for creating `nsFrameIterator`, but it's unnecessary
so that we can get rid of it and its interface.
Differential Revision: https://phabricator.services.mozilla.com/D197143
It's inherited only by `nsFrameIterator`, and `nsFrameIterator` can be declared
in a header file. So, the interface is not required and removing it can avoid
virtual calls.
Differential Revision: https://phabricator.services.mozilla.com/D197142
Nobody shares an instance of `nsFrameIterator`. Therefore, we can make it
non-refcountable. Additionally, `nsVisualIterator` is not required because
it overrides only 4 methods which are really simple. So, once we merge it
into `nsFrameIterator`, we can allocate it in the stack.
Differential Revision: https://phabricator.services.mozilla.com/D197144
The class is used only for creating `nsFrameIterator`, but it's unnecessary
so that we can get rid of it and its interface.
Differential Revision: https://phabricator.services.mozilla.com/D197143
It's inherited only by `nsFrameIterator`, and `nsFrameIterator` can be declared
in a header file. So, the interface is not required and removing it can avoid
virtual calls.
Differential Revision: https://phabricator.services.mozilla.com/D197142
Even though there is a reasonable usabe like bug 1567160, we should
ensure that `AutoCopyListener` never update clipboard when the selection
change is caused by a Selection API call.
Differential Revision: https://phabricator.services.mozilla.com/D191585
The idea of this struct is to allow live data of a highlight selection to be passed into layout.
Layout needs highlight properties such as priority or type to resolve combinations of highlights correctly.
Differential Revision: https://phabricator.services.mozilla.com/D181142
The a11y module wants to traverse frames in native anonymous subtrees.
Therefore, this patch adds new option for allowing it, makes
`nsIFrame::GetFrameFromDirection` check it before comparing native anonymous
subtree root nodes, and makes `HyperTextAccessible::FindOffset` use the
option.
Differential Revision: https://phabricator.services.mozilla.com/D172759
The constructor of `nsPeekOffsetStruct` and `nsIFrame::GetFrameFromDirection`
take too many `bool` arguments. Therefore, adding new `bool` arguments does
not make sense. Now, we have a useful `mozilla:EnumSet` class to treat them
with an `enum class`. Therefore, let's change `nsPeekOffsetStruct` with it.
Differential Revision: https://phabricator.services.mozilla.com/D172758
The a11y module wants to traverse frames in native anonymous subtrees.
Therefore, this patch adds new option for allowing it, makes
`nsIFrame::GetFrameFromDirection` check it before comparing native anonymous
subtree root nodes, and makes `HyperTextAccessible::FindOffset` use the
option.
Differential Revision: https://phabricator.services.mozilla.com/D172759
The constructor of `nsPeekOffsetStruct` and `nsIFrame::GetFrameFromDirection`
take too many `bool` arguments. Therefore, adding new `bool` arguments does
not make sense. Now, we have a useful `mozilla:EnumSet` class to treat them
with an `enum class`. Therefore, let's change `nsPeekOffsetStruct` with it.
Differential Revision: https://phabricator.services.mozilla.com/D172758
The a11y module wants to traverse frames in native anonymous subtrees.
Therefore, this patch adds new option for allowing it, makes
`nsIFrame::GetFrameFromDirection` check it before comparing native anonymous
subtree root nodes, and makes `HyperTextAccessible::FindOffset` use the
option.
Depends on D172758
Differential Revision: https://phabricator.services.mozilla.com/D172759
The constructor of `nsPeekOffsetStruct` and `nsIFrame::GetFrameFromDirection`
take too many `bool` arguments. Therefore, adding new `bool` arguments does
not make sense. Now, we have a useful `mozilla:EnumSet` class to treat them
with an `enum class`. Therefore, let's change `nsPeekOffsetStruct` with it.
Differential Revision: https://phabricator.services.mozilla.com/D172758
This change is necessary to support the [CSS Highlight API](https://drafts.csswg.org/css-highlight-api-1/),
which uses `Selection` internally.
To replace `nsRange` with `AbstractRange`, some sections needed to be
adapted since `nsRange`-specific features were used.
Therefore, some methods (such as `GetRangeAt()`) may only be called if
the `Selection` is *not* of type `SelectionType::eHighlight`,
as it (per spec) returns an `nsRange`.
These methods will now `MOZ_ASSERT` if called for a highlight selection.
Additional methods are implemented which return `AbstractRange`
instead and are safe to be called for every selection type.
This commit also improves support of highlight features:
- Invalidation of highlight ranges: adding/removing Ranges in-place instead of
removing and re-adding the Selection object associated with the highlight.
- Ranges are only associated with the Selection that shares the same Document
- Fixed minor IDL issue
Differential Revision: https://phabricator.services.mozilla.com/D170582
The Custom Highlight API allows a use case where a `Range` of a `Highlight`
is also used as `Selection`. Due to the decision to use the `Selection` mechanism
to display `Highlight`s, a `Range` can be part of several `Selection`s.
Since the `Range` has a pointer to its associated `Selection`
to notify about changes, this must be adapted to allow several `Selections`.
As a tradeoff of performance and memory usage, the `Selection`s are stored
as `mozilla::LinkedList`. A helper class `mozilla::SelectionListWrapper`
was implemented to allow `Selection`s to be in multiple of these lists
and without having to be derived from `LinkedListElement<T>`.
To simplify usage of the list, the use case "does this range belong to Selection x?"
is wrapped into the convenience method`IsInSelection(Selection&)`;
The method previously named like this was renamed to `IsInAnySelection()`
to be named more precisely.
Registering and unregistering of the closest common inclusive ancestor
of the `Range` is done when the first `Selection` is registered and
the last `Selection` is unregistered.
Differential Revision: https://phabricator.services.mozilla.com/D169597
Added WebIDL interfaces as per spec, added some necessary changes to support maplike and setlike structures to be accessed from C++.
Added `::highlight(foo)` pseudo element to CSS engine.
Implemented Highlight as new kind of `Selection` using `HighlightType::eHighlight`. This implies Selections being added/removed during runtime (one `Selection` object per highlight identifier), therefore a dynamic container for highlight `Selection` objects was added to `nsFrameSelection`. Also, the painting code queries the highlight style for highlight Selections.
Implementation is currently hidden behind a pref `dom.customHighlightAPI.enabled`.
Differential Revision: https://phabricator.services.mozilla.com/D164203
