Feature/3/highlight

CMakeLists.txt

@@ -6,7 +6,11 @@ project(libnut)
 # Source
 set(SOURCE_FILES "src/libnut.cc" "src/deadbeef_rand.c" "src/mouse.c" "src/keypress.c" "src/keycode.c" "src/screen.c" "src/screengrab.c" "src/snprintf.c" "src/MMBitmap.c")
 if (UNIX AND NOT APPLE)
-    set(SOURCE_FILES "${SOURCE_FILES}" "src/xdisplay.c")
+    set(SOURCE_FILES "${SOURCE_FILES}" "src/xdisplay.c" "src/highlightwindow_linux.c")
+elseif (UNIX AND APPLE)
+    set(SOURCE_FILES "${SOURCE_FILES}" "src/highlightwindow_macos.m")
+elseif (WIN32)
+    set(SOURCE_FILES "${SOURCE_FILES}" "src/highlightwindow_win32.c")
 endif()
 add_library(${PROJECT_NAME} SHARED ${SOURCE_FILES})
 
@@ -20,9 +24,7 @@ set(INCLUDES "")
 if (UNIX AND APPLE)
     message(STATUS "macOS build")
     set(LIBS "${LIBS}" "-framework ApplicationServices")
-    set(LIBS "${LIBS}" "-framework Carbon")
-    set(LIBS "${LIBS}" "-framework CoreFoundation")
-    set(LIBS "${LIBS}" "-framework OpenGL")
+    set(LIBS "${LIBS}" "-framework Cocoa")
 elseif (WIN32)
     message(STATUS "Windows build")
     # Required for disabeling delayed loading of node libs when linking

index.d.ts

@@ -10,6 +10,7 @@ export interface Bitmap {
 
 export interface Screen {
   capture(x?: number, y?: number, width?: number, height?: number): Bitmap;
+  highlight(x: number, y: number, width: number, height: number, duration: number, opacity: number): void;
 }
 
 export function setKeyboardDelay(ms: number): void;

index.js

@@ -17,6 +17,8 @@ function bitmap(width, height, byteWidth, bitsPerPixel, bytesPerPixel, image) {
   };
 }
 
+module.exports.screen.highlight = libnut.highlight;
+
 module.exports.screen.capture = function(x, y, width, height) {
   //If coords have been passed, use them.
   if (

package.json

@@ -1,6 +1,6 @@
 {
   "name": "libnut",
-  "version": "1.0.2",
+  "version": "1.1.0",
   "description": "libnut is an N-API module for desktop automation with node",
   "main": "index.js",
   "typings": "index.d.ts",

src/highlightwindow.h

@@ -0,0 +1,7 @@
+#pragma once
+#ifndef HIGHLIGHT_WINDOW_H
+#define HIGHLIGHT_WINDOW_H
+
+void showHighlightWindow(int x, int y, int width, int height, int duration, float opacity);
+
+#endif

src/highlightwindow_linux.c

@@ -0,0 +1,39 @@
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+#include "highlightwindow.h"
+
+void showHighlightWindow(int x, int y, int width, int height, int duration, float opacity)
+{
+    Display *d = XOpenDisplay(NULL);
+    Window root = DefaultRootWindow(d);
+    int default_screen = XDefaultScreen(d);
+
+    XSetWindowAttributes attrs;
+    attrs.override_redirect = True;
+
+    XVisualInfo vinfo;
+    if (!XMatchVisualInfo(d, DefaultScreen(d), 32, TrueColor, &vinfo)) {
+        return;
+    }
+    attrs.colormap = XCreateColormap(d, root, vinfo.visual, AllocNone);
+    int colorValue = 255 * opacity;
+    attrs.background_pixel = (colorValue << 24 | colorValue << 16);
+    attrs.border_pixel = 0;
+
+    Window overlay = XCreateWindow(
+        d, root,
+        x, y, width, height, 0,
+        vinfo.depth, InputOutput, 
+        vinfo.visual,
+        CWOverrideRedirect | CWColormap | CWBackPixel | CWBorderPixel, &attrs
+    );
+
+    XMapWindow(d, overlay);
+
+    XFlush(d);
+
+    sleep(duration);
+
+    XUnmapWindow(d, overlay);
+    XCloseDisplay(d);
+}

src/highlightwindow_macos.m

@@ -0,0 +1,27 @@
+#include "highlightwindow.h"
+#import <Cocoa/Cocoa.h>
+
+void showHighlightWindow(int x, int y, int width, int height, int duration, float opacity) {
+    NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
+    [NSApplication sharedApplication];
+
+    NSRect mainScreenFrameRect = [[NSScreen mainScreen] frame];
+    CGFloat screenHeight = mainScreenFrameRect.size.height;
+    NSRect frame = NSMakeRect(x, screenHeight - y - height, width, height);
+    NSUInteger styleMask = NSWindowStyleMaskBorderless;
+    NSWindow * window =  [[[NSWindow alloc] initWithContentRect:frame styleMask:styleMask backing:NSBackingStoreBuffered defer:NO] autorelease];
+    [window setBackgroundColor:[NSColor redColor]];
+    [window setAlphaValue:opacity];
+    [window orderFrontRegardless];
+
+    [NSTimer scheduledTimerWithTimeInterval: duration
+                repeats: NO
+                block: ^(NSTimer * timer){
+                [NSApp stop:0];
+                NSRect f = [window frame];
+                f.size = CGSizeMake(0, 0);
+                [window setFrame: f display: YES animate: NO];
+            }];
+    [NSApp run];
+    [pool release];
+}