Added a shortcut and button to quickly collapse / close the bottom panel (CTRL-B).

editor/editor_node.cpp

@@ -627,6 +627,7 @@ void EditorNode::_notification(int p_what) {
 			scene_tab_add->set_icon(gui_base->get_theme_icon("Add", "EditorIcons"));
 
 			bottom_panel_raise->set_icon(gui_base->get_theme_icon("ExpandBottomDock", "EditorIcons"));
+			bottom_panel_collapse->set_icon(gui_base->get_theme_icon("CollapseBottomDock", "EditorIcons"));
 
 			// clear_button->set_icon(gui_base->get_theme_icon("Close", "EditorIcons")); don't have access to that node. needs to become a class property
 			dock_tab_move_left->set_icon(theme->get_icon("Back", "EditorIcons"));
@@ -4113,7 +4114,7 @@ Ref<Texture> EditorNode::get_class_icon(const String &p_class, const String &p_f
 		String class_name = p_class;
 
 		while (script.is_valid()) {
-						class_name = ScriptServer::get_global_class_name(script->get_path());
+			class_name = ScriptServer::get_global_class_name(script->get_path());
 			String current_icon_path = ed.script_class_get_icon_path(class_name);
 			icon = _load_custom_class_icon(current_icon_path);
 			if (icon.is_valid()) {
@@ -5184,6 +5185,7 @@ void EditorNode::_bottom_panel_switch(bool p_enable, int p_idx) {
 			top_split->hide();
 		}
 		bottom_panel_raise->show();
+		bottom_panel_collapse->show();
 
 	} else {
 		bottom_panel->add_theme_style_override("panel", gui_base->get_theme_stylebox("panel", "TabContainer"));
@@ -5192,6 +5194,7 @@ void EditorNode::_bottom_panel_switch(bool p_enable, int p_idx) {
 		center_split->set_dragger_visibility(SplitContainer::DRAGGER_HIDDEN);
 		center_split->set_collapsed(true);
 		bottom_panel_raise->hide();
+		bottom_panel_collapse->hide();
 		if (bottom_panel_raise->is_pressed()) {
 			top_split->show();
 		}
@@ -5649,6 +5652,15 @@ void EditorNode::_bottom_panel_raise_toggled(bool p_pressed) {
 	top_split->set_visible(!p_pressed);
 }
 
+void EditorNode::_bottom_panel_collapse_pressed() {
+	top_split->set_visible(true);
+
+	for (int i = 0; i < bottom_panel_items.size(); i++) {
+		bottom_panel_items[i].button->set_pressed(false);
+		bottom_panel_items[i].control->set_visible(false);
+	}
+}
+
 void EditorNode::_update_video_driver_color() {
 	// TODO: Probably should de-hardcode this and add to editor settings.
 	if (video_driver->get_text() == "GLES2") {
@@ -5786,6 +5798,7 @@ void EditorNode::_bind_methods() {
 
 	ClassDB::bind_method(D_METHOD("_resources_reimported"), &EditorNode::_resources_reimported);
 	ClassDB::bind_method(D_METHOD("_bottom_panel_raise_toggled"), &EditorNode::_bottom_panel_raise_toggled);
+	ClassDB::bind_method(D_METHOD("_bottom_panel_collapse_pressed"), &EditorNode::_bottom_panel_collapse_pressed);
 
 	ClassDB::bind_method(D_METHOD("_on_plugin_ready"), &EditorNode::_on_plugin_ready);
 
@@ -6883,11 +6896,16 @@ EditorNode::EditorNode() {
 	Control *h_spacer = memnew(Control);
 	bottom_panel_hb->add_child(h_spacer);
 
+	bottom_panel_collapse = memnew(ToolButton);
+	bottom_panel_collapse->set_icon(gui_base->get_theme_icon("CollapseBottomDock", "EditorIcons"));
+	bottom_panel_collapse->set_shortcut(ED_SHORTCUT("editor/bottom_panel_collapse", TTR("Collapse Bottom Panel"), KEY_MASK_CTRL | KEY_B));
+	bottom_panel_hb->add_child(bottom_panel_collapse);
+	bottom_panel_collapse->hide();
+	bottom_panel_collapse->connect("pressed", this, "_bottom_panel_collapse_pressed");
+
 	bottom_panel_raise = memnew(ToolButton);
 	bottom_panel_raise->set_icon(gui_base->get_theme_icon("ExpandBottomDock", "EditorIcons"));
-
 	bottom_panel_raise->set_shortcut(ED_SHORTCUT("editor/bottom_panel_expand", TTR("Expand Bottom Panel"), KEY_MASK_SHIFT | KEY_F12));
-
 	bottom_panel_hb->add_child(bottom_panel_raise);
 	bottom_panel_raise->hide();
 	bottom_panel_raise->set_toggle_mode(true);

editor/editor_node.h

@@ -710,6 +710,7 @@ private:
 	VBoxContainer *bottom_panel_vb;
 	LinkButton *version_btn;
 	ToolButton *bottom_panel_raise;
+	ToolButton *bottom_panel_collapse;
 
 	enum FileChangedActions {
 		FILE_CHANGED_ACTION_ASK = 0,
@@ -730,6 +731,7 @@ private:
 	OptionButton *remember_disk_changed;
 
 	void _bottom_panel_raise_toggled(bool);
+	void _bottom_panel_collapse_pressed();
 
 	EditorInterface *editor_interface;
 

editor/icons/icon_collapse_bottom_dock.svg

@@ -0,0 +1,48 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   height="16"
+   viewBox="0 0 16 16"
+   width="16"
+   version="1.1"
+   id="svg3"
+   sodipodi:docname="icon_collapse_bottom_dock.svg"
+   inkscape:version="1.3 (0e150ed6c4, 2023-07-21)"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:svg="http://www.w3.org/2000/svg">
+  <defs
+     id="defs3" />
+  <sodipodi:namedview
+     id="namedview3"
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1.0"
+     inkscape:showpageshadow="2"
+     inkscape:pageopacity="0.0"
+     inkscape:pagecheckerboard="0"
+     inkscape:deskcolor="#d1d1d1"
+     inkscape:zoom="51.1875"
+     inkscape:cx="7.990232"
+     inkscape:cy="8"
+     inkscape:window-width="1920"
+     inkscape:window-height="1023"
+     inkscape:window-x="3840"
+     inkscape:window-y="0"
+     inkscape:window-maximized="1"
+     inkscape:current-layer="svg3" />
+  <g
+     fill="#e0e0e0"
+     id="g3"
+     transform="rotate(180,8.0602361,7.2456305)">
+    <path
+       d="M 4.2130251,4.516057 0.6774912,8.0515909 H 3.2131761 V 13.025308 H 5.2130155 V 8.0515909 H 7.7487004 L 4.2131665,4.516057 Z"
+       id="path1" />
+    <path
+       d="M 11.907306,4.6119359 8.3717718,8.1474698 h 2.5356852 v 4.9737172 h 1.999839 V 8.1474698 h 2.535685 L 11.907447,4.6119359 Z"
+       id="path2" />
+    <path
+       d="m 1.288136,1.370074 h 14 v 1.830509 h -14 z"
+       id="path3" />
+  </g>
+</svg>