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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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6
Userland/Libraries/LibGUI/TextEditor.cpp
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@ -883,6 +883,12 @@ void TextEditor::keydown_event(KeyEvent& event)
event.ignore();
}
void TextEditor::delete_previous_word()
{
TextRange to_erase(document().first_word_before(m_cursor, true), m_cursor);
execute<RemoveTextCommand>(document().text_in_range(to_erase), to_erase);
}
void TextEditor::delete_current_line()
{
if (has_selection())