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LibGUI: Add Ctrl-W to insert mode

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In Vim's insert mode, Ctrl-W deletes the word before the cursor, like
Ctrl-Backspace. Unlike Ctrl-Backspace, if only whitespace exists between
the end of the word and the cursor, the word will be deleted with the
whitespace.

To do so, this commit introduces two methods: delete_previous_word() for
TextEditor and first_word_before() for TextDocument, where the former
depends on the latter. delete_previous_word() is then called in
VimEditingEngine.
This commit is contained in:
Ariel Don 2021-07-13 22:12:07 -05:00 • committed by Gunnar Beutner
parent 8f01a8b741
commit 808e5e813f
5 changed files with 52 additions and 0 deletions
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2
Userland/Libraries/LibGUI/TextDocument.h
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@ -106,6 +106,8 @@ public:
TextPosition first_word_break_before(const TextPosition&, bool start_at_column_before) const;
TextPosition first_word_break_after(const TextPosition&) const;
TextPosition first_word_before(const TextPosition&, bool start_at_column_before) const;
void add_to_undo_stack(NonnullOwnPtr<TextDocumentUndoCommand>);
bool can_undo() const { return m_undo_stack.can_undo(); }