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Code Issues Activity Actions

TextEditor: Enable/disable undo & redo buttons based on availability (#740)

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This commit is contained in:
Rhin 2019-11-09 01:50:39 -06:00 • committed by Andreas Kling
parent 3e84ea9a53
commit 503fe37eaa
2 changed files with 10 additions and 2 deletions
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10
Libraries/LibGUI/GTextEditor.cpp
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@ -48,6 +48,8 @@ void GTextEditor::create_actions()
{
m_undo_action = GCommonActions::make_undo_action([&](auto&) { undo(); }, this);
m_redo_action = GCommonActions::make_redo_action([&](auto&) { redo(); }, this);
m_undo_action->set_enabled(false);
m_redo_action->set_enabled(false);
m_cut_action = GCommonActions::make_cut_action([&](auto&) { cut(); }, this);
m_copy_action = GCommonActions::make_copy_action([&](auto&) { copy(); }, this);
m_paste_action = GCommonActions::make_paste_action([&](auto&) { paste(); }, this);
@ -469,7 +471,7 @@ void GTextEditor::select_all()
void GTextEditor::undo()
{
if (m_undo_stack_index >= m_undo_stack.size() || m_undo_stack.is_empty())
if (!can_undo())
return;
auto& undo_container = m_undo_stack[m_undo_stack_index];
@ -488,11 +490,12 @@ void GTextEditor::undo()
}
m_undo_stack_index++;
did_change();
}
void GTextEditor::redo()
{
if (m_undo_stack_index <= 0 || m_undo_stack.is_empty())
if (!can_redo())
return;
auto& undo_container = m_undo_stack[m_undo_stack_index - 1];
@ -504,6 +507,7 @@ void GTextEditor::redo()
}
m_undo_stack_index--;
did_change();
}
void GTextEditor::get_selection_line_boundaries(int& first_line, int& last_line)
@ -1293,6 +1297,8 @@ void GTextEditor::did_change()
ASSERT(!is_readonly());
update_content_size();
recompute_all_visual_lines();
m_undo_action->set_enabled(can_undo());
m_redo_action->set_enabled(can_redo());
if (!m_has_pending_change_notification) {
m_has_pending_change_notification = true;
deferred_invoke([this](auto&) {