Added hide/show for Windows

example/main.go

@@ -66,9 +66,11 @@ func onReady() {
 			case <-mToggle.ClickedCh:
 				if shown {
 					mQuitOrig.Hide()
+					mEnabled.Hide()
 					shown = false
 				} else {
 					mQuitOrig.Show()
+					mEnabled.Show()
 					shown = true
 				}
 			case <-mQuit.ClickedCh:

systray.go

@@ -46,7 +46,7 @@ var (
 	menuItems     = make(map[int32]*MenuItem)
 	menuItemsLock sync.RWMutex
 
-	currentID int32
+	currentID = int32(-1)
 )
 
 // Run initializes GUI and starts the event loop, then invokes the onReady

systray/systray/ReadMe.txt

@@ -1,48 +0,0 @@
-========================================================================
-    DYNAMIC LINK LIBRARY : systray Project Overview
-========================================================================
-
-AppWizard has created this systray DLL for you.
-
-This file contains a summary of what you will find in each of the files that
-make up your systray application.
-
-
-systray.vcxproj
-    This is the main project file for VC++ projects generated using an Application Wizard.
-    It contains information about the version of Visual C++ that generated the file, and
-    information about the platforms, configurations, and project features selected with the
-    Application Wizard.
-
-systray.vcxproj.filters
-    This is the filters file for VC++ projects generated using an Application Wizard. 
-    It contains information about the association between the files in your project 
-    and the filters. This association is used in the IDE to show grouping of files with
-    similar extensions under a specific node (for e.g. ".cpp" files are associated with the
-    "Source Files" filter).
-
-systray.cpp
-    This is the main DLL source file.
-
-	When created, this DLL does not export any symbols. As a result, it
-	will not produce a .lib file when it is built. If you wish this project
-	to be a project dependency of some other project, you will either need to
-	add code to export some symbols from the DLL so that an export library
-	will be produced, or you can set the Ignore Input Library property to Yes
-	on the General propert page of the Linker folder in the project's Property
-	Pages dialog box.
-
-/////////////////////////////////////////////////////////////////////////////
-Other standard files:
-
-StdAfx.h, StdAfx.cpp
-    These files are used to build a precompiled header (PCH) file
-    named systray.pch and a precompiled types file named StdAfx.obj.
-
-/////////////////////////////////////////////////////////////////////////////
-Other notes:
-
-AppWizard uses "TODO:" comments to indicate parts of the source code you
-should add to or customize.
-
-/////////////////////////////////////////////////////////////////////////////

systray/systray/dllmain.cpp

@@ -1,19 +0,0 @@
-// dllmain.cpp : Defines the entry point for the DLL application.
-#include "stdafx.h"
-
-BOOL APIENTRY DllMain( HMODULE hModule,
-                       DWORD  ul_reason_for_call,
-                       LPVOID lpReserved
-					 )
-{
-	switch (ul_reason_for_call)
-	{
-	case DLL_PROCESS_ATTACH:
-	case DLL_THREAD_ATTACH:
-	case DLL_THREAD_DETACH:
-	case DLL_PROCESS_DETACH:
-		break;
-	}
-	return TRUE;
-}
-

systray/systray/stdafx.cpp

@@ -1,8 +0,0 @@
-// stdafx.cpp : source file that includes just the standard includes
-// systray.pch will be the pre-compiled header
-// stdafx.obj will contain the pre-compiled type information
-
-#include "stdafx.h"
-
-// TODO: reference any additional headers you need in STDAFX.H
-// and not in this file

systray/systray/stdafx.h

@@ -1,17 +0,0 @@
-// stdafx.h : include file for standard system include files,
-// or project specific include files that are used frequently, but
-// are changed infrequently
-//
-
-#pragma once
-
-#include "targetver.h"
-
-#define WIN32_LEAN_AND_MEAN             // Exclude rarely-used stuff from Windows headers
-// Windows Header Files:
-#include <windows.h>
-// Additional required headers
-#include <stdio.h>
-#include <stdlib.h>
-#include <windows.h>
-#include <shellapi.h>

systray/systray/systray.cpp

@@ -1,226 +0,0 @@
-// systray.cpp : Defines the exported functions for the DLL application.
-//
-
-// dllmain.cpp : Defines the entry point for the DLL application.
-#include "stdafx.h"
-#include "systray.h"
-
-// Message posted into message loop when Notification Icon is clicked
-#define WM_SYSTRAY_MESSAGE (WM_USER + 1)
-
-static NOTIFYICONDATA nid;
-static HWND hWnd;
-static HMENU hTrayMenu;
-
-void (*systray_on_exit)(int ignored);
-void (*systray_menu_item_selected)(int menu_id);
-
-void reportWindowsError(const char* action) {
-	LPTSTR pErrMsg = NULL;
-	DWORD errCode = GetLastError();
-	DWORD result = FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER|
-			FORMAT_MESSAGE_FROM_SYSTEM|
-			FORMAT_MESSAGE_ARGUMENT_ARRAY,
-			NULL,
-			errCode,
-			LANG_NEUTRAL,
-			pErrMsg,
-			0,
-			NULL);
-	printf("Systray error %s: %d %ls\n", action, errCode, pErrMsg);
-}
-
-void ShowMenu(HWND hWnd) {
-	POINT p;
-	if (0 == GetCursorPos(&p)) {
-		reportWindowsError("get tray menu position");
-		return;
-	};
-	SetForegroundWindow(hWnd); // Win32 bug work-around
-	TrackPopupMenu(hTrayMenu, TPM_BOTTOMALIGN | TPM_LEFTALIGN, p.x, p.y, 0, hWnd, NULL);
-
-}
-
-int GetMenuItemId(int index) {
-	MENUITEMINFO menuItemInfo;
-	menuItemInfo.cbSize = sizeof(MENUITEMINFO);
-	menuItemInfo.fMask = MIIM_DATA;
-	if (0 == GetMenuItemInfo(hTrayMenu, index, TRUE, &menuItemInfo)) {
-		reportWindowsError("get menu item id");
-		return -1;
-	}
-	return menuItemInfo.dwItemData;
-}
-
-LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) {
-	switch (message) {
-		case WM_MENUCOMMAND:
-			{
-				int menuId = GetMenuItemId(wParam);
-				if (menuId != -1) {
-					systray_menu_item_selected(menuId);
-				}
-			}
-			break;
-		case WM_DESTROY:
-			printf("Window destroyed\n");
-			systray_on_exit(0/*ignored*/);
-			Shell_NotifyIcon(NIM_DELETE, &nid);
-			PostQuitMessage(0);
-			break;
-		case WM_ENDSESSION:
-			printf("Session ending\n");
-			// When the system shuts down (or logs off), we don't receive WM_DESTROY,
-			// so we capture WM_ENDSESSION instead and call on_exit here too.
-			systray_on_exit(0/*ignored*/);
-			Shell_NotifyIcon(NIM_DELETE, &nid);
-			break;
-		case WM_SYSTRAY_MESSAGE:
-			switch(lParam) {
-				case WM_RBUTTONUP:
-					ShowMenu(hWnd);
-					break;
-				case WM_LBUTTONUP:
-					ShowMenu(hWnd);
-					break;
-				default:
-					return DefWindowProc(hWnd, message, wParam, lParam);
-			};
-			break;
-		default:
-			return DefWindowProc(hWnd, message, wParam, lParam);
-	}
-	return 0;
-}
-
-void MyRegisterClass(HINSTANCE hInstance, TCHAR* szWindowClass) {
-	WNDCLASSEX wcex;
-
-	wcex.cbSize = sizeof(WNDCLASSEX);
-	wcex.style          = CS_HREDRAW | CS_VREDRAW;
-	wcex.lpfnWndProc    = WndProc;
-	wcex.cbClsExtra     = 0;
-	wcex.cbWndExtra     = 0;
-	wcex.hInstance      = hInstance;
-	wcex.hIcon          = LoadIcon(NULL, IDI_APPLICATION);
-	wcex.hCursor        = LoadCursor(NULL, IDC_ARROW);
-	wcex.hbrBackground  = (HBRUSH)(COLOR_WINDOW+1);
-	wcex.lpszMenuName   = 0;
-	wcex.lpszClassName  = szWindowClass;
-	wcex.hIconSm        = LoadIcon(NULL, IDI_APPLICATION);
-
-	RegisterClassEx(&wcex);
-}
-
-HWND InitInstance(HINSTANCE hInstance, int nCmdShow, TCHAR* szWindowClass) {
-	HWND hWnd = CreateWindow(szWindowClass, TEXT(""), WS_OVERLAPPEDWINDOW,
-			CW_USEDEFAULT, 0, CW_USEDEFAULT, 0, NULL, NULL, hInstance, NULL);
-	if (!hWnd) {
-		return 0;
-	}
-
-	ShowWindow(hWnd, nCmdShow);
-	UpdateWindow(hWnd);
-
-	return hWnd;
-}
-
-
-BOOL createMenu() {
-	hTrayMenu = CreatePopupMenu();
-	MENUINFO menuInfo;
-	menuInfo.cbSize = sizeof(MENUINFO);
-	menuInfo.fMask = MIM_APPLYTOSUBMENUS | MIM_STYLE;
-	menuInfo.dwStyle = MNS_NOTIFYBYPOS;
-	return SetMenuInfo(hTrayMenu, &menuInfo);
-}
-
-BOOL addNotifyIcon() {
-	nid.cbSize = sizeof(NOTIFYICONDATA);
-	nid.hWnd = hWnd;
-	nid.uID = 100;
-	nid.uCallbackMessage = WM_SYSTRAY_MESSAGE;
-	nid.uFlags = NIF_MESSAGE;
-	return Shell_NotifyIcon(NIM_ADD, &nid);
-}
-
-int nativeLoop(void (*systray_ready)(int ignored),
-	void (*_systray_on_exit)(int ignored),
-    void (*_systray_menu_item_selected)(int menu_id)) {
-	systray_on_exit = _systray_on_exit;
-	systray_menu_item_selected = _systray_menu_item_selected;
-
-	HINSTANCE hInstance = GetModuleHandle(NULL);
-	TCHAR* szWindowClass = TEXT("SystrayClass");
-	MyRegisterClass(hInstance, szWindowClass);
-	hWnd = InitInstance(hInstance, FALSE, szWindowClass); // Don't show window
-	if (!hWnd) {
-		return EXIT_FAILURE;
-	}
-	if (!createMenu() || !addNotifyIcon()) {
-		return EXIT_FAILURE;
-	}
-	systray_ready(0);
-
-	MSG msg;
-	while (GetMessage(&msg, NULL, 0, 0)) {
-		TranslateMessage(&msg);
-		DispatchMessage(&msg);
-	}
-	return EXIT_SUCCESS;
-}
-
-
-void setIcon(const wchar_t* iconFile) {
-	HICON hIcon = (HICON) LoadImage(NULL, iconFile, IMAGE_ICON, 64, 64, LR_LOADFROMFILE);
-	if (hIcon == NULL) {
-		reportWindowsError("load icon image");
-	} else {
-		nid.hIcon = hIcon;
-		nid.uFlags = NIF_ICON;
-		Shell_NotifyIcon(NIM_MODIFY, &nid);
-	}
-}
-
-void setTooltip(const wchar_t* tooltip) {
-	wcsncpy_s(nid.szTip, tooltip, sizeof(nid.szTip)/sizeof(wchar_t));
-	nid.uFlags = NIF_TIP;
-	Shell_NotifyIcon(NIM_MODIFY, &nid);
-}
-
-void add_or_update_menu_item(int menuId, wchar_t* title, wchar_t* tooltip, short disabled, short checked) {
-	MENUITEMINFO menuItemInfo;
-	menuItemInfo.cbSize = sizeof(MENUITEMINFO);
-	menuItemInfo.fMask = MIIM_FTYPE | MIIM_STRING | MIIM_DATA | MIIM_STATE;
-	menuItemInfo.fType = MFT_STRING;
-	menuItemInfo.dwTypeData = title;
-	menuItemInfo.cch = wcslen(title) + 1;
-	menuItemInfo.dwItemData = (ULONG_PTR)menuId;
-	menuItemInfo.fState = 0;
-	if (disabled == 1) {
-		menuItemInfo.fState |= MFS_DISABLED;
-	}
-	if (checked == 1) {
-		menuItemInfo.fState |= MFS_CHECKED;
-	}
-
-	int itemCount = GetMenuItemCount(hTrayMenu);
-	int i;
-	for (i = 0; i < itemCount; i++) {
-		int id = GetMenuItemId(i);
-		if (-1 == id) {
-			continue;
-		}
-		if (menuId == id) {
-			SetMenuItemInfo(hTrayMenu, i, TRUE, &menuItemInfo);
-			break;
-		}
-	}
-	if (i == itemCount) {
-		InsertMenuItem(hTrayMenu, -1, TRUE, &menuItemInfo);
-	}
-}
-
-void quit() {
-	PostMessage(hWnd, WM_CLOSE, 0, 0);
-}

systray/systray/systray.def

@@ -1,8 +0,0 @@
-LIBRARY systray
-DESCRIPTION "System Tray Support"
-EXPORTS
-	nativeLoop					@1
-	setIcon						@2
-	setTooltip					@3
-	add_or_update_menu_item		@4
-	quit						@5

systray/systray/systray.h

@@ -1,12 +0,0 @@
-#pragma once
-
-extern "C" {
-	__declspec(dllexport) int __cdecl nativeLoop(void (*systray_ready)(int ignored),
-		void (*_systray_on_exit)(int ignored),
-		void (*_systray_menu_item_selected)(int menu_id));
-
-	__declspec(dllexport) void __cdecl setIcon(const wchar_t* iconFile);
-	__declspec(dllexport) void __cdecl setTooltip(const wchar_t* tooltip);
-	__declspec(dllexport) void __cdecl add_or_update_menu_item(int menuId, wchar_t* title, wchar_t* tooltip, short disabled, short checked);
-	__declspec(dllexport) void __cdecl quit();
-}

systray/systray/systray.vcxproj

@@ -1,176 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <ItemGroup Label="ProjectConfigurations">
-    <ProjectConfiguration Include="Debug|Win32">
-      <Configuration>Debug</Configuration>
-      <Platform>Win32</Platform>
-    </ProjectConfiguration>
-    <ProjectConfiguration Include="Debug|x64">
-      <Configuration>Debug</Configuration>
-      <Platform>x64</Platform>
-    </ProjectConfiguration>
-    <ProjectConfiguration Include="Release|Win32">
-      <Configuration>Release</Configuration>
-      <Platform>Win32</Platform>
-    </ProjectConfiguration>
-    <ProjectConfiguration Include="Release|x64">
-      <Configuration>Release</Configuration>
-      <Platform>x64</Platform>
-    </ProjectConfiguration>
-  </ItemGroup>
-  <PropertyGroup Label="Globals">
-    <ProjectGuid>{7DD84108-D77F-4F51-AC68-5DD13AC1E489}</ProjectGuid>
-    <Keyword>Win32Proj</Keyword>
-    <RootNamespace>systray</RootNamespace>
-  </PropertyGroup>
-  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
-    <ConfigurationType>DynamicLibrary</ConfigurationType>
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-  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
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-      <WarningLevel>Level3</WarningLevel>
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systray/systray/systray.vcxproj.filters

@@ -1,45 +0,0 @@
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systray/systray/systray.vcxproj.user

@@ -1,3 +0,0 @@
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systray/systray/targetver.h

@@ -1,8 +0,0 @@
-#pragma once
-
-// Including SDKDDKVer.h defines the highest available Windows platform.
-
-// If you wish to build your application for a previous Windows platform, include WinSDKVer.h and
-// set the _WIN32_WINNT macro to the platform you wish to support before including SDKDDKVer.h.
-
-#include <SDKDDKVer.h>

systray_windows.go

@@ -25,6 +25,7 @@ var (
 	_setTitle                = mod.NewProc("setTitle")
 	_setTooltip              = mod.NewProc("setTooltip")
 	_add_or_update_menu_item = mod.NewProc("add_or_update_menu_item")
+	_hide_menu_item          = mod.NewProc("hide_menu_item")
 )
 
 func init() {
@@ -131,6 +132,14 @@ func addOrUpdateMenuItem(item *MenuItem) {
 	)
 }
 
+func hideMenuItem(item *MenuItem) {
+	_hide_menu_item.Call(uintptr(item.id))
+}
+
+func showMenuItem(item *MenuItem) {
+	addOrUpdateMenuItem(item)
+}
+
 type utf16 []uint16
 
 // Raw returns the underlying *wchar_t of an utf16 so we can pass to DLL