gecko-dev/widget/CommandList.h
Masayuki Nakano 201d289381 Bug 1357365 - part 3: Make TypeInState::OnSelectionChange() stop keeping link style if caret is positioned at edge of a link element and not moved in the link r=m_kato,edgar
Although different from the other browsers' behavior, our traditional behavior
might be better than them because the behavior on the other browser does not
allow users to insert new content at start nor end of a link.

However, we can relax more about keeping traditional behavior for web-compat.
Perhaps, only when caret is moved from the other side of first or last character
in the link and moves caret to the edge of the link with arrow key, we should
allow users to modify the link text.

Otherwise, e.g., `Home` and `End` key press should make it stop keeping the
link style.  This helps advanced users who are familiar with keyboard navigatin
in editor.

Note that this patch also changes the condition which checks
`aReason & nsISelectionListener::KEYPRESS_REASON` to check also
`nsISelectionListener::COLLAPSETO_START_REASON` and
`nsISelectionListener::COLLAPSETO_END_REASON` because all of them are
set by `nsFrameSelection::MoveCaret` exclusively.
https://searchfox.org/mozilla-central/rev/a0ccd492719b1ad2106f6456549be62a76f45acb/layout/generic/nsFrameSelection.cpp#738,741,745
Therefore, they should be treated as same as a key press.

Note that they are also set by `Selection::CollapseToStart` and
`Selection::CollapseToEnd` too.  But a following patch will add a new
reason to notify selection listeners of caused by JS.  So, the problem
will be fixed by the following patch.

Differential Revision: https://phabricator.services.mozilla.com/D101002
2021-01-13 01:55:29 +00:00

170 lines
8.3 KiB
C

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/**
* Define NS_DEFINE_COMMAND(aName, aCommandStr) before including this.
* @param aName The name useful in C++ of the command.
* @param aCommandStr The command string in JS.
*
* Define NS_DEFINE_COMMAND_WITH_PARAM(aName, aCommandStr, aParam) before
* including this.
* @param aName The name useful in C++ of the command.
* @param aCommandStr The command string in JS, but this may be shared with
* other aName values. I.e., cannot map aName and
* aCommandStr 1:1.
* @param aParam Additional param value. When aCommandStr is executed,
* this value is also specified. I.e., aName becomes
* unique when you look for with both aCommandStr and
* aParam.
*
* Define NS_DEFINE_COMMAND_NO_EXEC_COMMAND(aName) before including this.
* @param aName The name useful in C++ of the command.
*/
// Mapped from commands of some platforms
NS_DEFINE_COMMAND(BeginLine, cmd_beginLine)
NS_DEFINE_COMMAND(CharNext, cmd_charNext)
NS_DEFINE_COMMAND(CharPrevious, cmd_charPrevious)
NS_DEFINE_COMMAND(Copy, cmd_copy)
NS_DEFINE_COMMAND(Cut, cmd_cut)
NS_DEFINE_COMMAND(Delete, cmd_delete)
NS_DEFINE_COMMAND(DeleteCharBackward, cmd_deleteCharBackward)
NS_DEFINE_COMMAND(DeleteCharForward, cmd_deleteCharForward)
NS_DEFINE_COMMAND(DeleteToBeginningOfLine, cmd_deleteToBeginningOfLine)
NS_DEFINE_COMMAND(DeleteToEndOfLine, cmd_deleteToEndOfLine)
NS_DEFINE_COMMAND(DeleteWordBackward, cmd_deleteWordBackward)
NS_DEFINE_COMMAND(DeleteWordForward, cmd_deleteWordForward)
NS_DEFINE_COMMAND(EndLine, cmd_endLine)
NS_DEFINE_COMMAND(InsertParagraph, cmd_insertParagraph)
NS_DEFINE_COMMAND(InsertLineBreak, cmd_insertLineBreak)
NS_DEFINE_COMMAND(LineNext, cmd_lineNext)
NS_DEFINE_COMMAND(LinePrevious, cmd_linePrevious)
NS_DEFINE_COMMAND(MoveBottom, cmd_moveBottom)
NS_DEFINE_COMMAND(MovePageDown, cmd_movePageDown)
NS_DEFINE_COMMAND(MovePageUp, cmd_movePageUp)
NS_DEFINE_COMMAND(MoveTop, cmd_moveTop)
NS_DEFINE_COMMAND(Paste, cmd_paste)
NS_DEFINE_COMMAND(ScrollBottom, cmd_scrollBottom)
NS_DEFINE_COMMAND(ScrollLeft, cmd_scrollLeft)
NS_DEFINE_COMMAND(ScrollLineDown, cmd_scrollLineDown)
NS_DEFINE_COMMAND(ScrollLineUp, cmd_scrollLineUp)
NS_DEFINE_COMMAND(ScrollPageDown, cmd_scrollPageDown)
NS_DEFINE_COMMAND(ScrollPageUp, cmd_scrollPageUp)
NS_DEFINE_COMMAND(ScrollRight, cmd_scrollRight)
NS_DEFINE_COMMAND(ScrollTop, cmd_scrollTop)
NS_DEFINE_COMMAND(SelectAll, cmd_selectAll)
NS_DEFINE_COMMAND(SelectBeginLine, cmd_selectBeginLine)
NS_DEFINE_COMMAND(SelectBottom, cmd_selectBottom)
NS_DEFINE_COMMAND(SelectCharNext, cmd_selectCharNext)
NS_DEFINE_COMMAND(SelectCharPrevious, cmd_selectCharPrevious)
NS_DEFINE_COMMAND(SelectEndLine, cmd_selectEndLine)
NS_DEFINE_COMMAND(SelectLineNext, cmd_selectLineNext)
NS_DEFINE_COMMAND(SelectLinePrevious, cmd_selectLinePrevious)
NS_DEFINE_COMMAND(SelectPageDown, cmd_selectPageDown)
NS_DEFINE_COMMAND(SelectPageUp, cmd_selectPageUp)
NS_DEFINE_COMMAND(SelectTop, cmd_selectTop)
NS_DEFINE_COMMAND(SelectWordNext, cmd_selectWordNext)
NS_DEFINE_COMMAND(SelectWordPrevious, cmd_selectWordPrevious)
NS_DEFINE_COMMAND(WordNext, cmd_wordNext)
NS_DEFINE_COMMAND(WordPrevious, cmd_wordPrevious)
// We don't have corresponding commands for them, but some platforms have them.
NS_DEFINE_COMMAND_NO_EXEC_COMMAND(CancelOperation)
NS_DEFINE_COMMAND_NO_EXEC_COMMAND(Complete)
NS_DEFINE_COMMAND_NO_EXEC_COMMAND(InsertBacktab)
NS_DEFINE_COMMAND_NO_EXEC_COMMAND(InsertTab)
// Commands mapped from HTMLDocument.execCommand()
NS_DEFINE_COMMAND(FormatBold, cmd_bold)
NS_DEFINE_COMMAND(FormatItalic, cmd_italic)
NS_DEFINE_COMMAND(FormatUnderline, cmd_underline)
NS_DEFINE_COMMAND(FormatStrikeThrough, cmd_strikethrough)
NS_DEFINE_COMMAND(FormatSubscript, cmd_subscript)
NS_DEFINE_COMMAND(FormatSuperscript, cmd_superscript)
NS_DEFINE_COMMAND(HistoryUndo, cmd_undo)
NS_DEFINE_COMMAND(HistoryRedo, cmd_redo)
NS_DEFINE_COMMAND(FormatBlock, cmd_paragraphState)
NS_DEFINE_COMMAND(FormatIndent, cmd_indent)
NS_DEFINE_COMMAND(FormatOutdent, cmd_outdent)
NS_DEFINE_COMMAND_WITH_PARAM(FormatJustifyLeft, cmd_align, left)
NS_DEFINE_COMMAND_WITH_PARAM(FormatJustifyRight, cmd_align, right)
NS_DEFINE_COMMAND_WITH_PARAM(FormatJustifyCenter, cmd_align, center)
NS_DEFINE_COMMAND_WITH_PARAM(FormatJustifyFull, cmd_align, justify)
NS_DEFINE_COMMAND(FormatBackColor, cmd_highlight)
NS_DEFINE_COMMAND(FormatFontColor, cmd_fontColor)
NS_DEFINE_COMMAND(FormatFontName, cmd_fontFace)
NS_DEFINE_COMMAND(FormatFontSize, cmd_fontSize)
NS_DEFINE_COMMAND(FormatIncreaseFontSize, cmd_increaseFont)
NS_DEFINE_COMMAND(FormatDecreaseFontSize, cmd_decreaseFont)
NS_DEFINE_COMMAND(InsertHorizontalRule, cmd_insertHR)
NS_DEFINE_COMMAND(InsertLink, cmd_insertLinkNoUI)
NS_DEFINE_COMMAND(InsertImage, cmd_insertImageNoUI)
NS_DEFINE_COMMAND(InsertHTML, cmd_insertHTML)
NS_DEFINE_COMMAND(InsertText, cmd_insertText)
NS_DEFINE_COMMAND(InsertOrderedList, cmd_ol)
NS_DEFINE_COMMAND(InsertUnorderedList, cmd_ul)
NS_DEFINE_COMMAND(GetHTML, cmd_getContents)
NS_DEFINE_COMMAND(FormatRemove, cmd_removeStyles)
NS_DEFINE_COMMAND(FormatRemoveLink, cmd_removeLinks)
NS_DEFINE_COMMAND(SetDocumentUseCSS, cmd_setDocumentUseCSS)
NS_DEFINE_COMMAND(SetDocumentReadOnly, cmd_setDocumentReadOnly)
NS_DEFINE_COMMAND(SetDocumentInsertBROnEnterKeyPress, cmd_insertBrOnReturn)
NS_DEFINE_COMMAND(SetDocumentDefaultParagraphSeparator,
cmd_defaultParagraphSeparator)
NS_DEFINE_COMMAND(ToggleObjectResizers, cmd_enableObjectResizing)
NS_DEFINE_COMMAND(ToggleInlineTableEditor, cmd_enableInlineTableEditing)
NS_DEFINE_COMMAND(ToggleAbsolutePositionEditor,
cmd_enableAbsolutePositionEditing)
// Commands not mapped from HTMLDocument.execCommand() but available with
// command dispatcher and handled in editor.
NS_DEFINE_COMMAND(CutOrDelete, cmd_cutOrDelete)
NS_DEFINE_COMMAND(CopyOrDelete, cmd_copyOrDelete)
NS_DEFINE_COMMAND(EditorObserverDocumentCreated, obs_documentCreated)
NS_DEFINE_COMMAND(EditorObserverDocumentLocationChanged,
obs_documentLocationChanged)
NS_DEFINE_COMMAND(EditorObserverDocumentWillBeDestroyed,
obs_documentWillBeDestroyed)
NS_DEFINE_COMMAND(FormatAbbreviation, cmd_abbr)
NS_DEFINE_COMMAND(FormatAbsolutePosition, cmd_absPos)
NS_DEFINE_COMMAND(FormatAcronym, cmd_acronym)
NS_DEFINE_COMMAND(FormatCitation, cmd_cite)
NS_DEFINE_COMMAND(FormatCode, cmd_code)
NS_DEFINE_COMMAND(FormatDecreaseZIndex, cmd_decreaseZIndex)
NS_DEFINE_COMMAND(FormatDocumentBackgroundColor, cmd_backgroundColor)
NS_DEFINE_COMMAND(FormatEmphasis, cmd_em)
NS_DEFINE_COMMAND(FormatIncreaseZIndex, cmd_increaseZIndex)
NS_DEFINE_COMMAND(FormatJustify, cmd_align) // Only for getting enabled/state
NS_DEFINE_COMMAND(FormatJustifyNone, cmd_align) // with empty string or params
NS_DEFINE_COMMAND(FormatNoBreak, cmd_nobreak)
NS_DEFINE_COMMAND(FormatRemoveList, cmd_removeList)
NS_DEFINE_COMMAND(FormatSample, cmd_samp)
NS_DEFINE_COMMAND(FormatSetBlockTextDirection, cmd_switchTextDirection)
NS_DEFINE_COMMAND(FormatStrong, cmd_strong)
NS_DEFINE_COMMAND(FormatTeletypeText, cmd_tt)
NS_DEFINE_COMMAND(FormatVariable, cmd_var)
NS_DEFINE_COMMAND(InsertDefinitionDetails, cmd_dd)
NS_DEFINE_COMMAND(InsertDefinitionTerm, cmd_dt)
NS_DEFINE_COMMAND(MoveDown, cmd_moveDown)
NS_DEFINE_COMMAND(MoveDown2, cmd_moveDown2)
NS_DEFINE_COMMAND(MoveLeft, cmd_moveLeft)
NS_DEFINE_COMMAND(MoveLeft2, cmd_moveLeft2)
NS_DEFINE_COMMAND(MoveRight, cmd_moveRight)
NS_DEFINE_COMMAND(MoveRight2, cmd_moveRight2)
NS_DEFINE_COMMAND(MoveUp, cmd_moveUp)
NS_DEFINE_COMMAND(MoveUp2, cmd_moveUp2)
NS_DEFINE_COMMAND(PasteAsQuotation, cmd_pasteQuote)
NS_DEFINE_COMMAND(PasteTransferable, cmd_pasteTransferable)
NS_DEFINE_COMMAND(PasteWithoutFormat, cmd_pasteNoFormatting)
NS_DEFINE_COMMAND(SelectDown, cmd_selectDown)
NS_DEFINE_COMMAND(SelectDown2, cmd_selectDown2)
NS_DEFINE_COMMAND(SelectLeft, cmd_selectLeft)
NS_DEFINE_COMMAND(SelectLeft2, cmd_selectLeft2)
NS_DEFINE_COMMAND(SelectRight, cmd_selectRight)
NS_DEFINE_COMMAND(SelectRight2, cmd_selectRight2)
NS_DEFINE_COMMAND(SelectUp, cmd_selectUp)
NS_DEFINE_COMMAND(SelectUp2, cmd_selectUp2)
NS_DEFINE_COMMAND(SetDocumentModified, cmd_setDocumentModified)