`AutoEditActionDataSetter` is created in the stack when editor's public method
is called and that guarantees lifetime of global objects in editor such as
editor itself, selection controller, etc.
The dispatcher of `beforeinput` event returns `NS_ERROR_EDITOR_ACTION_CANCELED`
if an event is actually dispatched but canceled. The reason why it's an error
is, editor code must stop handling anything when any methods return error.
So, returning an error code is reasonable in editor module. But when it's
filtered by `EditorBase::ToGenericNSResult()` at return statement of public
methods, it's converted to `NS_SUCCESS_DOM_NO_OPERATION`. This avoids throwing
new exception, but editor class users in C++ can distinguish whether each edit
action is canceled or handled. The reason why we should not throw new
exception from XPCOM API is, without taking care of each caller may break some
our UI (especially for avoiding to break comm-central). Therefore, this patch
does not make XPCOM methods return error code when `beforeinput` event is
canceled.
In most cases, immediately after creating `AutoEditActionDataSetter` is good
timing to dispatch `beforeinput` event since editor has not touched the DOM
yet. If `beforeinput` requires `data` or `dataTransfer`, methods need to
dispatch `beforeinput` event after that. Alhtough this is not a good thing
from point of view of consistency of the code. However, I have no better
idea.
Note 1: Our implementation does NOT conform to the spec about event order
between `keypress` and `beforeinput` (dispatching `beforeinput` event after
`keypress` event). However, we follow all other browsers' behavior so that it
must be safe and the spec should be updated for backward compatibility.
Spec issue: https://github.com/w3c/uievents/issues/220
Note 2: Our implementation does NOT conform to the spec about event order
between `compositionupdate` and `beforeinput`. Our behavior is same as
Safari, but different from Chrome. This might cause web-compat issues.
However, our behavior does make sense from point of view of consistency of
event spec. Additionally, at both `compositionupdate` and `beforeinput`,
composition string in editor has not been modified yet. Therefore, this
may not cause web-compat issues (and I hope so).
Spec issue: https://github.com/w3c/input-events/issues/49
Note that this patch makes editor detect bugs that `beforeinput` event hasn't
been handled yet when it dispatches `input` event or modifying `data` and
`dataTransfer` value are modified after dispatching `beforeinput` event with
`MOZ_ASSERT`s.
Differential Revision: https://phabricator.services.mozilla.com/D58127
`uint32_t`, because `nsRange::ComparePoints` requires it -- by webidl
interface -- to be unsigned long.
Moreover it makes `RangeBoundaryBase`'s interface cleaner, because it
already exposes the offset as a `uint32_t`.
Differential Revision: https://phabricator.services.mozilla.com/D50054
And also this patch make each `AutoEditSubActionNotifier` creator check
the result of `OnStartToHandleTopLevelEditSubAction()` at least for
`NS_ERROR_EDITOR_DESTROYED`.
We need to take care of its destructor's result later, though.
Differential Revision: https://phabricator.services.mozilla.com/D45786
`TextEditor::DeleteSelectionAsSubAction()` starts to handle all
"delete selection" sub-actions (i.e., even if the instance is `HTMLEditor`).
Therefore, `TextEditRules::WillDeleteSelection()` should be renamed to
`TextEditor::HandleDeleteSelection()` and we need to make it virtual.
Differential Revision: https://phabricator.services.mozilla.com/D45300
The members of `HTMLEditRules` which are used only while `WillDoAction()` and
`DidDoAction()` are called should be moved to specific stack only struct
`EditorBase::EditSubActionData`.
Differential Revision: https://phabricator.services.mozilla.com/D42106
Despite of their names, `TextEditRules::mCachedSelectionNode` and
`TextEditRules::mCachedSelectionOffset` are used only for calling
`EditorBase::HandleInlineSpellCheck()` so that they should be renamed to
explain the purpose.
Additionally, they are not necessary to be in the heap since they are
necessary until `TextEditRules::AfterEdit()` is called. Therefore, we can
move them into `EditorBase::HandleInlineSpellCheck()`.
Finally, `TextEditRules::BeforeEdit()` and `TextEditRules::AfterEdit()` are
called only by `TextEditor::OnStartToHandleTopLevelEditSubAction()` and
`TextEditor::OnEndHandlingTopLevelEditSubAction()`. Therefore, we can move
the setter to `TextEditor::OnStartToHandleTopLevelEditSubAction()`.
Differential Revision: https://phabricator.services.mozilla.com/D41396
It'd be better to change copy constructor of `EditorDOMPointBase` to explicit,
but it'd require too many changes in editor code. So, this patch just changes
each method callers only.
Differential Revision: https://phabricator.services.mozilla.com/D30054
This patch marks `EditorBase::InsertNodeTransaction()` **and** its callers as `MOZ_CAN_RUN_SCRIPT`.
Unfortunately, this patch tells us that some `GetSomething()` methods may destroy the editor since `HTMLEditRules::GetNodesForOperation()`, `HTMLEditRules::GetNodesFromPoint()` and `HTMLEditRules::GetNodesFromSelection()` may change the DOM tree. Additionally, initialization methods may destroy the editor since it may insert a bogus `<br>` node.
Note that this patch also removes some unused methods. I.e., they are not result of some cleaning up the code. This patch just avoids marking unused methods as `MOZ_CAN_RUN_SCRIPT`.
Differential Revision: https://phabricator.services.mozilla.com/D25027
This patch marks `EditorBase::InsertNodeTransaction()` **and** its callers as `MOZ_CAN_RUN_SCRIPT`.
Unfortunately, this patch tells us that some `GetSomething()` methods may destroy the editor since `HTMLEditRules::GetNodesForOperation()`, `HTMLEditRules::GetNodesFromPoint()` and `HTMLEditRules::GetNodesFromSelection()` may change the DOM tree. Additionally, initialization methods may destroy the editor since it may insert a bogus `<br>` node.
Note that this patch also removes some unused methods. I.e., they are not result of some cleaning up the code. This patch just avoids marking unused methods as `MOZ_CAN_RUN_SCRIPT`.
Differential Revision: https://phabricator.services.mozilla.com/D25027
`Selection::Extend()` is too slow but editor and ContentEventHandler use it in
some places. We should make them use `Selection::SetStartAndEndInLimiter()` or
`Selection::SetBaseAndExtentInLimiter()`. The former is usable only when caller
guarantees the start point is prior to the end point in the DOM tree.
Otherwise, we need to use the latter even though it's slower than the former.
Differential Revision: https://phabricator.services.mozilla.com/D23462
`Selection::Extend()` is too slow but editor and ContentEventHandler use it in
some places. We should make them use `Selection::SetStartAndEndInLimiter()` or
`Selection::SetBaseAndExtentInLimiter()`. The former is usable only when caller
guarantees the start point is prior to the end point in the DOM tree.
Otherwise, we need to use the latter even though it's slower than the former.
Differential Revision: https://phabricator.services.mozilla.com/D23462
`PresShell.h` is exposed as `mozilla/PresShell.h` and `PresShell` is the only
concrete class of `nsIPresShell`. Therefore, we have no reason to access
`PresShell` via `nsIPresShell`.
Differential Revision: https://phabricator.services.mozilla.com/D23277
As far as I've tested, Chrome does not throw exception even when editor is
destroyed or editor content is modified unexpectedly. So, we should return
`NS_OK` from most public methods of editor when internal methods return
`NS_ERROR_EDITOR_DESTROYED` or `NS_ERROR_EDITOR_UNEXPECTED_DOM_TREE`.
Differential Revision: https://phabricator.services.mozilla.com/D20811
This is a best effort attempt at ensuring that the adverse impact of
reformatting the entire tree over the comments would be minimal. I've used a
combination of strategies including disabling of formatting, some manual
formatting and some changes to formatting to work around some clang-format
limitations.
Differential Revision: https://phabricator.services.mozilla.com/D13073
This is a best effort attempt at ensuring that the adverse impact of
reformatting the entire tree over the comments would be minimal. I've used a
combination of strategies including disabling of formatting, some manual
formatting and some changes to formatting to work around some clang-format
limitations.
Differential Revision: https://phabricator.services.mozilla.com/D13073
This is a best effort attempt at ensuring that the adverse impact of
reformatting the entire tree over the comments would be minimal. I've used a
combination of strategies including disabling of formatting, some manual
formatting and some changes to formatting to work around some clang-format
limitations.
Differential Revision: https://phabricator.services.mozilla.com/D13073
Currently, calling nsITableEditor.insertTableCell() does not cause dispatching
"input" event since it does not create AutoPlaceholderBatch. Additionally,
different from InsertTableRowsWithTransaction() and
InsertTableColumnsWithTransaction(), it does not create
AutoTopLevelEditSubActionNotifier.
Because of those APIs should work similarly, we should make it creates
both auto class instances.
Differential Revision: https://phabricator.services.mozilla.com/D12248
Now, any protected/private methods of editor classes can refer
SelectionRefPtr() safely. So, we can cut the cost of calling GetSelection()
only once per edit action handling.
Differential Revision: https://phabricator.services.mozilla.com/D10011
EditorBase::SelectionRefPtr() is now safe to use in editor and really fast to
retrieve Selection than EditorBase::GetSelection(). Therefore, we can get rid of
all Selection pointer/reference argument of each method which always take
normal Selection.
Note that this changes nsIHTMLEditor.checkSelectionStateForAnonymousButtons()
because its argument is only Selection. So, BlueGriffon should work even
though it calls the method with nsIEditor.selection.
Differential Revision: https://phabricator.services.mozilla.com/D10009
AutoTransactionBatch, AutoPlaceholderBatch, AutoSelectionRestorer,
AutoTopLevelEditSubActionNotifier, AutoTransactionsConserveSelection and
AutoUpdateViewBatch access protected members of EditorBase. The access
scope management assume that they are used only by EditorBase or its
subclasses or TextEditRules or its inherited class (i.e., HTMLEditRules).
For guaranteeing this at build-time, we should change them to nested classes
of EditorBase. Then, EditorBase and its subclasses and friends can use them.
Differential Revision: https://phabricator.services.mozilla.com/D9479
A lot of loops in HTMLTableEditor.cpp scans cells along column-axis or
row-axis. In those cases, they need to skip columns/rows which are spanned
from prior column/row. So, we can rewrite them with CellData::NextColumnIndex()
or CellData::NextRowColumn().
Differential Revision: https://phabricator.services.mozilla.com/D8358
Razvan Maries