From 554313d645cb21a7e9579860675b275c4b5a09c8 Mon Sep 17 00:00:00 2001
From: Infinitay <Infinitay@users.noreply.github.com>
Date: Sat, 26 Mar 2022 09:16:45 -0400
Subject: [PATCH] Add the ability to lock NotebookTab layout (#3627)

Co-authored-by: Rasmus Karlsson <rasmus.karlsson@pajlada.com>
---
 CHANGELOG.md                       |  1 +
 src/singletons/Settings.hpp        |  1 +
 src/widgets/Notebook.cpp           | 50 ++++++++++++++++++++++++++----
 src/widgets/Notebook.hpp           |  7 +++++
 src/widgets/helper/NotebookTab.cpp |  7 +----
 5 files changed, 54 insertions(+), 12 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8df673c1..39bad50b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -60,6 +60,7 @@
 - Minor: Make Tab Layout setting only accept predefined values (#3564)
 - Minor: Added librewolf, icecat, and waterfox incognito support. (#3588)
 - Minor: Updated to Emoji v14.0 (#3612)
+- Minor: Add support for locking tab arrangement (#3627)
 - Bugfix: Fix Split Input hotkeys not being available when input is hidden (#3362)
 - Bugfix: Fixed colored usernames sometimes not working. (#3170)
 - Bugfix: Restored ability to send duplicate `/me` messages. (#3166)
diff --git a/src/singletons/Settings.hpp b/src/singletons/Settings.hpp
index 15f75540..14ade6c9 100644
--- a/src/singletons/Settings.hpp
+++ b/src/singletons/Settings.hpp
@@ -386,6 +386,7 @@ public:
     BoolSetting askOnImageUpload = {"/misc/askOnImageUpload", true};
     BoolSetting informOnTabVisibilityToggle = {"/misc/askOnTabVisibilityToggle",
                                                true};
+    BoolSetting lockNotebookLayout = {"/misc/lockNotebookLayout", false};
 
     /// Debug
     BoolSetting showUnhandledIrcMessages = {"/debug/showUnhandledIrcMessages",
diff --git a/src/widgets/Notebook.cpp b/src/widgets/Notebook.cpp
index 0aa5baba..959b277b 100644
--- a/src/widgets/Notebook.cpp
+++ b/src/widgets/Notebook.cpp
@@ -34,12 +34,21 @@ Notebook::Notebook(QWidget *parent)
 
     this->addButton_->setHidden(true);
 
-    this->menu_.addAction(
-        "Toggle visibility of tabs",
-        [this]() {
-            this->setShowTabs(!this->getShowTabs());
-        },
-        QKeySequence("Ctrl+U"));
+    this->lockNotebookLayoutAction_ = new QAction("Lock Tab Layout", this);
+
+    // Load lock notebook layout state from settings
+    this->setLockNotebookLayout(getSettings()->lockNotebookLayout.getValue());
+
+    this->lockNotebookLayoutAction_->setCheckable(true);
+    this->lockNotebookLayoutAction_->setChecked(this->lockNotebookLayout_);
+
+    // Update lockNotebookLayout_ value anytime the user changes the checkbox state
+    QObject::connect(this->lockNotebookLayoutAction_, &QAction::triggered,
+                     [this](bool value) {
+                         this->setLockNotebookLayout(value);
+                     });
+
+    this->addNotebookActionsToMenu(&this->menu_);
 }
 
 NotebookTab *Notebook::addPage(QWidget *page, QString title, bool select)
@@ -316,6 +325,11 @@ QWidget *Notebook::tabAt(QPoint point, int &index, int maxWidth)
 
 void Notebook::rearrangePage(QWidget *page, int index)
 {
+    if (this->isNotebookLayoutLocked())
+    {
+        return;
+    }
+
     // Queue up save because: Tab rearranged
     getApp()->windows->queueSave();
 
@@ -673,6 +687,30 @@ void Notebook::paintEvent(QPaintEvent *event)
     }
 }
 
+bool Notebook::isNotebookLayoutLocked() const
+{
+    return this->lockNotebookLayout_;
+}
+
+void Notebook::setLockNotebookLayout(bool value)
+{
+    this->lockNotebookLayout_ = value;
+    this->lockNotebookLayoutAction_->setChecked(value);
+    getSettings()->lockNotebookLayout.setValue(value);
+}
+
+void Notebook::addNotebookActionsToMenu(QMenu *menu)
+{
+    menu->addAction(
+        "Toggle visibility of tabs",
+        [this]() {
+            this->setShowTabs(!this->getShowTabs());
+        },
+        QKeySequence("Ctrl+U"));
+
+    menu->addAction(this->lockNotebookLayoutAction_);
+}
+
 NotebookButton *Notebook::getAddButton()
 {
     return this->addButton_;
diff --git a/src/widgets/Notebook.hpp b/src/widgets/Notebook.hpp
index 9ccc5ede..42b05fc3 100644
--- a/src/widgets/Notebook.hpp
+++ b/src/widgets/Notebook.hpp
@@ -60,6 +60,11 @@ public:
 
     void setTabDirection(NotebookTabDirection direction);
 
+    bool isNotebookLayoutLocked() const;
+    void setLockNotebookLayout(bool value);
+
+    void addNotebookActionsToMenu(QMenu *menu);
+
 protected:
     virtual void scaleChangedEvent(float scale_) override;
     virtual void resizeEvent(QResizeEvent *) override;
@@ -98,7 +103,9 @@ private:
     bool showTabs_ = true;
     bool showAddButton_ = false;
     int lineOffset_ = 20;
+    bool lockNotebookLayout_ = false;
     NotebookTabDirection tabDirection_ = NotebookTabDirection::Horizontal;
+    QAction *lockNotebookLayoutAction_;
 };
 
 class SplitNotebook : public Notebook
diff --git a/src/widgets/helper/NotebookTab.cpp b/src/widgets/helper/NotebookTab.cpp
index 3dd18d87..8fdbe74e 100644
--- a/src/widgets/helper/NotebookTab.cpp
+++ b/src/widgets/helper/NotebookTab.cpp
@@ -89,12 +89,7 @@ NotebookTab::NotebookTab(Notebook *notebook)
 
     this->menu_.addSeparator();
 
-    this->menu_.addAction(
-        "Toggle visibility of tabs",
-        [this]() {
-            this->notebook_->setShowTabs(!this->notebook_->getShowTabs());
-        },
-        QKeySequence("Ctrl+U"));
+    this->notebook_->addNotebookActionsToMenu(&this->menu_);
 }
 
 void NotebookTab::showRenameDialog()