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LibGUI: Fixes modified indicator behavior after saving

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Pior to this change when the user added text after having saved the file
the Text Editor wouldn't enable the modified flag, unless this new text
was a new line.

This happened because the UndoStack was merging the Command added by
the new text with the old text one, and when is_current_modified()
was called, the m_stack_index would not have been incremented, and
it would return false.

In this change was added a condition to verify if the modified tag is
active, and the merge is only done if the document is already modified.
This commit is contained in:
luiz 2021-08-14 20:03:37 -03:00 committed by Andreas Kling
parent 83c412ee9e
commit 964249a5b0
Notes: sideshowbarker 2024-07-18 04:45:36 +09:00 
Author: https://github.com/luizgfc 🔰
Commit: https://github.com/SerenityOS/serenity/commit/964249a5b01
Pull-request: https://github.com/SerenityOS/serenity/pull/9427
1 changed files with 1 additions and 1 deletions
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2
Userland/Libraries/LibGUI/UndoStack.cpp
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@ -62,7 +62,7 @@ void UndoStack::push(NonnullOwnPtr<Command> command)
if (m_clean_index.has_value() && m_clean_index.value() > m_stack.size())
m_clean_index = {};
if (!m_stack.is_empty()) {
if (!m_stack.is_empty() && is_current_modified()) {
if (m_stack.last().merge_with(*command))
return;
}