Toggle tools

and make it so the airbrush + brush work whichever you select first

src/$ToolBox.js

@@ -33,10 +33,14 @@ function $ToolBox(tools, is_extras){
 		});
 		
 		$b.on("click", function(e){
+			if (e.shiftKey) {
+				select_tool(tool, true);
+				return;
+			}
 			if(selected_tool === tool && tool.deselect){
 				select_tool(previous_tool);
 			}else{
-				select_tool(tool, e.shiftKey);
+				select_tool(tool);
 			}
 		});
 		

src/app.js

@@ -555,6 +555,8 @@ $canvas.on("pointerdown", function(e){
 	pointer_start = pointer_previous = pointer = e2c(e);
 
 	var pointerdown_action = function(){
+	selected_tools.forEach((selected_tool)=> {
+
 		if(selected_tool.paint || selected_tool.pointerdown){
 			tool_go("pointerdown");
 		}
@@ -571,14 +573,17 @@ $canvas.on("pointerdown", function(e){
 				pointer = e2c(e);
 				selected_tool.pointerup && selected_tool.pointerup(ctx, pointer.x, pointer.y);
 			}
+			if (selected_tools.length === 0) {
 			if(selected_tool.deselect){
 				select_tool(previous_tool);
 			}
+			}
 			$G.off("pointermove", canvas_pointer_move);
 			if(iid){
 				clearInterval(iid);
 			}
 		});
+	});
 	};
 
 	if((typeof selected_tool.passive === "function") ? selected_tool.passive() : selected_tool.passive){

src/functions.js

@@ -774,20 +774,32 @@ function get_tool_by_name(name){
 	}
 }
 
-function select_tool(tool, add){
+function select_tool(tool, toggle){
 	if(!selected_tool.deselect){
 		previous_tool = selected_tool;
 	}
-	selected_tool = tool;
-	if (add) {
-		selected_tools.push(tool);
+	if (toggle) {
+		var index = selected_tools.indexOf(tool);
+		if (index === -1) {
+			selected_tools.push(tool);
+		} else {
+			selected_tools.splice(index, 1);
+		}
+		if (selected_tools.length > 0) {
+			selected_tool = selected_tools[selected_tools.length - 1];
+		} else {
+			selected_tool = tools[6];
+			selected_tools = [selected_tool];
+		}
 	} else {
+		selected_tool = tool;
 		selected_tools = [tool];
 	}
 	
 	deselect();
-	if(selected_tool.activate){
-		selected_tool.activate();
+
+	if(tool.preload){
+		tool.preload();
 	}
 	
 	$toolbox.update_selected_tool();

src/tools.js

@@ -367,7 +367,7 @@ tools = [{
 	description: "Inserts text into the picture.",
 	cursor: ["precise", [16, 16], "crosshair"],
 	passive: true,
-	activate: function(){
+	preload: function(){
 		setTimeout(FontDetective.preload, 10);
 	},
 	drag_start_x: 0,