FancyZones and Shortcut Guide initial commit

Co-authored-by: Alexis Campailla <alexis@janeasystems.com>
Co-authored-by: Bret Anderson <bretan@microsoft.com>
Co-authored-by: Enrico Giordani <enrico.giordani@gmail.com>
Co-authored-by: Jaime Bernardo <jaime@janeasystems.com>
Co-authored-by: Jeff Bogdan <jeffbog@microsoft.com>
Co-authored-by: March Rogers <marchr@microsoft.com>
Co-authored-by: Mike Harsh <mharsh@microsoft.com>
Co-authored-by: Nachum Bundak <Nachum.Bundak@microsoft.com>
Co-authored-by: Oliver Jones <ojones@microsoft.com>
Co-authored-by: Patrick Little <plittle@microsoft.com>

src/modules/fancyzones/dll/FancyZonesModule.vcxproj

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src/modules/fancyzones/dll/FancyZonesModule.vcxproj.filters

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+    <ResourceCompile Include="..\lib\fancyzones.rc" />
+  </ItemGroup>
+</Project>

src/modules/fancyzones/dll/README.md

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+# Introduction
+Super FancyZones! Just like FancyZones except super.
+
+# Getting Started
+Grab FancyZones.exe from the bin directory or \\\\wexfs\users\bretan\proto\superfancyzones and run it
+
+## Dragging windows
+* While dragging a window around, zones will appear that the window can be dropped in. Dropping the window in a zone will position it in the zone.
+* While dragging a window, you can hit number keys to cycle the active zone set. Eg, drag a window around and hit the '3' key will change to a zone set with 3 zones.
+
+## Hotkeys
+* Win+~ - opens the zone viewer/editor
+* Win+ctrl+number - cycle through layouts with the corresponding number of zones (only if Override snap hotkeys setting is enabled)
+* Win+left arrow, Win+right arrow - move foreground window between zones
+
+## Zone Viewer/Editor (Win + ~)
+* Hitting a number key cycles through layouts matching the number of zones (eg 3 cycles through layouts with 3 zones)
+* R resets the focused monitor back to defaults
+* C clears the current layout so you can start fresh
+* W opens a dialog to choose wallpaper
+* Left click moves the zone to the top
+* Right click moves the zone to the bottom
+
+### E enters editor mode (hit E or Escape to exit editor mode)
+* Left/Right/Up/Down arrows adjust the grid spacing
+* PgUp/PgDn adjust grid margins
+* Ctrl+left click splits the clicked zone in half horizontally
+* Ctrl+right click splits the clicked zone in half vertically
+
+# Options
+### Default Drag Mode
+* None - don't do anything when dragging windows around (shift enters normal mode, ctrl enters adjusted mode)
+* Normal - show zones when dragging windows around (shift disables, ctrl enters adjusted mode)
+* Adjusted - show zones when dragging windows around with an accelerated cursor
+
+### Display change
+* Move windows - automatically move windows around when display changes
+
+### Virtual Desktop change
+* Move windows - automatically move windows around when virtual desktop changes
+* Change wallpaper - use custom wallpaper per-monitor per-desktop
+* Flash zones - flash zones on each monitor
+
+### Miscellanious
+* Override snap hotkeys - steal hotkeys normally used by shell (win+left/right, win+ctrl+num)
+* Colorful zones - use colored zones in zone viewer
+
+# Known issues
+* See open bugs for full list of issues
+* Win+left and Win+right don't move between monitors
+* If you use Virtual Desktops, make sure to perform at least one virtual desktop switch before launching the fancyzones (it relies on a volatile regkey that explorer writes)
+* Sometimes you have to click on a zone viewer window before it gets keyboard focus when opening views with Win+~
+* Quickly switching virtual desktops with win+ctrl+arrow hotkeys can crash fancyzones

src/modules/fancyzones/dll/dllmain.cpp

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+#include "pch.h"
+#include <common/settings_objects.h>
+#include <interface/powertoy_module_interface.h>
+#include <interface/lowlevel_keyboard_event_data.h>
+#include <interface/win_hook_event_data.h>
+#include <lib/ZoneSet.h>
+#include <lib/RegistryHelpers.h>
+
+extern "C" IMAGE_DOS_HEADER __ImageBase;
+
+BOOL APIENTRY DllMain(HMODULE hModule, DWORD  ul_reason_for_call, LPVOID lpReserved)
+{
+    switch (ul_reason_for_call)
+    {
+        case DLL_PROCESS_ATTACH:
+            Trace::RegisterProvider();
+            break;
+
+        case DLL_THREAD_ATTACH:
+        case DLL_THREAD_DETACH:
+            break;
+
+        case DLL_PROCESS_DETACH:
+            Trace::UnregisterProvider();
+            break;
+    }
+    return TRUE;
+}
+
+// TODO: multimon support, need to pass the HMONITOR from the editor to here instead
+// of using MonitorFromPoint
+// This function is exported and called from FancyZonesEditor.exe to save a layout from the editor.
+STDAPI PersistZoneSet(
+    PCWSTR activeKey, // Registry key holding ActiveZoneSet
+    PCWSTR resolutionKey, // Registry key for screen resolution
+    WORD layoutId, // LayoutModel Id
+    int zoneCount, // Number of zones in zones
+    int zones[]) // Array of zones serialized in left/top/right/bottom chunks
+{
+    // See if we have already persisted this layout we can update.
+    UUID id{GUID_NULL};
+    if (wil::unique_hkey key{ RegistryHelpers::OpenKey(resolutionKey) })
+    {
+        ZoneSetPersistedData data{};
+        DWORD dataSize = sizeof(data);
+        wchar_t value[256]{};
+        DWORD valueLength = ARRAYSIZE(value);
+        DWORD i = 0;
+        while (RegEnumValueW(key.get(), i++, value, &valueLength, nullptr, nullptr, reinterpret_cast<BYTE*>(&data), &dataSize) == ERROR_SUCCESS)
+        {
+            if (data.LayoutId == layoutId)
+            {
+                if (data.ZoneCount == zoneCount)
+                {
+                    CLSIDFromString(value, &id);
+                    break;
+                }
+            }
+            valueLength = ARRAYSIZE(value);
+            dataSize = sizeof(data);
+        }
+    }
+
+    if (id == GUID_NULL)
+    {
+        // No existing layout found so let's create a new one.
+        UuidCreate(&id);
+    }
+
+    if (id != GUID_NULL)
+    {
+        winrt::com_ptr<IZoneSet> zoneSet = MakeZoneSet(
+            ZoneSetConfig(
+                id,
+                layoutId,
+                MonitorFromPoint({}, MONITOR_DEFAULTTOPRIMARY),
+                resolutionKey,
+                ZoneSetLayout::Custom,
+                0, 0, 0));
+
+        for (int i = 0; i < zoneCount; i++)
+        {
+            const int baseIndex = i * 4;
+            const int left = zones[baseIndex];
+            const int top = zones[baseIndex+1];
+            const int right = zones[baseIndex+2];
+            const int bottom = zones[baseIndex+3];
+            zoneSet->AddZone(MakeZone({ left, top, right, bottom }), false);
+        }
+        zoneSet->Save();
+
+        wil::unique_cotaskmem_string zoneSetId;
+        if (SUCCEEDED_LOG(StringFromCLSID(id, &zoneSetId)))
+        {
+            RegistryHelpers::SetString(activeKey, L"ActiveZoneSetId", zoneSetId.get());
+        }
+
+        return S_OK;
+    }
+    return E_FAIL;
+}
+
+class FancyZonesModule : public PowertoyModuleIface
+{
+public:
+    // Return the display name of the powertoy, this will be cached
+    virtual PCWSTR get_name() override
+    {
+        return L"FancyZones";
+    }
+
+    // Return array of the names of all events that this powertoy listens for, with
+    // nullptr as the last element of the array. Nullptr can also be retured for empty list.
+    virtual PCWSTR* get_events() override
+    {
+        static PCWSTR events[] = { ll_keyboard, win_hook_event, nullptr };
+        return events;
+    }
+
+    // Return JSON with the configuration options.
+    // These are the settings shown on the settings page along with their current values.
+    virtual bool get_config(_Out_ PWSTR buffer, _Out_ int *buffer_size) override
+    {
+        return m_settings->GetConfig(buffer, buffer_size);
+    }
+
+    // Passes JSON with the configuration settings for the powertoy.
+    // This is called when the user hits Save on the settings page.
+    virtual void set_config(PCWSTR config) override
+    {
+        m_settings->SetConfig(config);
+    }
+
+    // Signal from the Settings editor to call a custom action.
+    // This can be used to spawn more complex editors.
+    virtual void call_custom_action(const wchar_t* action) override
+    {
+        m_settings->CallCustomAction(action);
+    }
+
+    // Enable the powertoy
+    virtual void enable()
+    {
+        if (!m_app)
+        {
+            Trace::FancyZones::EnableFancyZones(true);
+            m_app = MakeFancyZones(reinterpret_cast<HINSTANCE>(&__ImageBase), m_settings.get());
+            if (m_app)
+            {
+                m_app->Run();
+            }
+        }
+    }
+
+    // Disable the powertoy
+    virtual void disable()
+    {
+        if (m_app)
+        {
+            Trace::FancyZones::EnableFancyZones(false);
+            m_app->Destroy();
+            m_app = nullptr;
+        }
+    }
+
+    // Returns if the powertoy is enabled
+    virtual bool is_enabled() override
+    {
+        return (m_app != nullptr);
+    }
+
+    // Handle incoming event, data is event-specific
+    virtual intptr_t signal_event(const wchar_t* name, intptr_t data) override
+    {
+        if (m_app)
+        {
+            if (wcscmp(name, ll_keyboard) == 0)
+            {
+                // Return 1 if the keypress is to be suppressed (not forwarded to Windows), otherwise return 0.
+                return HandleKeyboardHookEvent(reinterpret_cast<LowlevelKeyboardEvent*>(data));
+            }
+            else if (wcscmp(name, win_hook_event) == 0)
+            {
+                // Return value is ignored
+                HandleWinHookEvent(reinterpret_cast<WinHookEvent*>(data));
+            }
+        }
+        return 0;
+    }
+
+    // Destroy the powertoy and free memory
+    virtual void destroy() override
+    {
+        disable();
+        delete this;
+    }
+
+    FancyZonesModule()
+    {
+        m_settings = MakeFancyZonesSettings(reinterpret_cast<HINSTANCE>(&__ImageBase), get_name());
+    }
+
+private:
+    static bool IsInterestingWindow(HWND window)
+    {
+        auto style = GetWindowLongPtr(window, GWL_STYLE);
+        auto exStyle = GetWindowLongPtr(window, GWL_EXSTYLE);
+        return WI_IsFlagSet(style, WS_MAXIMIZEBOX) && WI_IsFlagClear(style, WS_CHILD) && WI_IsFlagClear(exStyle, WS_EX_TOOLWINDOW);
+    }
+
+    intptr_t HandleKeyboardHookEvent(LowlevelKeyboardEvent* data) noexcept;
+    void HandleWinHookEvent(WinHookEvent* data) noexcept;
+    void MoveSizeStart(HWND window, POINT const& ptScreen) noexcept;
+    void MoveSizeEnd(HWND window, POINT const& ptScreen) noexcept;
+    void MoveSizeUpdate(POINT const& ptScreen) noexcept;
+
+    winrt::com_ptr<IFancyZones> m_app;
+    winrt::com_ptr<IFancyZonesSettings> m_settings;
+};
+
+intptr_t FancyZonesModule::HandleKeyboardHookEvent(LowlevelKeyboardEvent* data) noexcept
+{
+    if (data->wParam == WM_KEYDOWN)
+    {
+        return m_app.as<IFancyZonesCallback>()->OnKeyDown(data->lParam) ? 1 : 0;
+    }
+    return 0;
+}
+
+void FancyZonesModule::HandleWinHookEvent(WinHookEvent* data) noexcept
+{
+    POINT ptScreen;
+    GetPhysicalCursorPos(&ptScreen);
+
+    switch (data->event)
+    {
+    case EVENT_SYSTEM_MOVESIZESTART:
+    {
+        MoveSizeStart(data->hwnd, ptScreen);
+    }
+    break;
+
+    case EVENT_SYSTEM_MOVESIZEEND:
+    {
+        MoveSizeEnd(data->hwnd, ptScreen);
+    }
+    break;
+
+    case EVENT_OBJECT_LOCATIONCHANGE:
+    {
+        if (m_app.as<IFancyZonesCallback>()->InMoveSize())
+        {
+            MoveSizeUpdate(ptScreen);
+        }
+    }
+    break;
+
+    case EVENT_OBJECT_NAMECHANGE:
+    {
+        // The accessibility name of the desktop window changes whenever the user
+        // switches virtual desktops.
+        if (data->hwnd == GetDesktopWindow())
+        {
+            Trace::VirtualDesktopChanged();
+            m_app.as<IFancyZonesCallback>()->VirtualDesktopChanged();
+        }
+    }
+    break;
+
+    case EVENT_OBJECT_CREATE:
+    {
+        if (data->idObject == OBJID_WINDOW)
+        {
+            if (IsInterestingWindow(data->hwnd))
+            {
+                m_app.as<IFancyZonesCallback>()->WindowCreated(data->hwnd);
+            }
+        }
+    }
+    break;
+
+    default:
+        break;
+    }
+}
+
+void FancyZonesModule::MoveSizeStart(HWND window, POINT const& ptScreen) noexcept
+{
+    if (IsInterestingWindow(window))
+    {
+        if (auto monitor = MonitorFromPoint(ptScreen, MONITOR_DEFAULTTONULL))
+        {
+            m_app.as<IFancyZonesCallback>()->MoveSizeStart(window, monitor, ptScreen);
+        }
+    }
+}
+
+void FancyZonesModule::MoveSizeEnd(HWND window, POINT const& ptScreen) noexcept
+{
+    if (IsInterestingWindow(window))
+    {
+        m_app.as<IFancyZonesCallback>()->MoveSizeEnd(window, ptScreen);
+    }
+}
+
+void FancyZonesModule::MoveSizeUpdate(POINT const& ptScreen) noexcept
+{
+    if (auto monitor = MonitorFromPoint(ptScreen, MONITOR_DEFAULTTONULL))
+    {
+        m_app.as<IFancyZonesCallback>()->MoveSizeUpdate(monitor, ptScreen);
+    }
+}
+
+extern "C" __declspec(dllexport) PowertoyModuleIface*  __cdecl powertoy_create()
+{
+  return new FancyZonesModule();
+}
+
+

src/modules/fancyzones/dll/fancyzones.def

@@ -0,0 +1,4 @@
+LIBRARY fancyzones.dll
+
+EXPORTS
+    PersistZoneSet PRIVATE

src/modules/fancyzones/dll/packages.config

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<packages>
+  <package id="Microsoft.Windows.ImplementationLibrary" version="1.0.190716.2" targetFramework="native" />
+</packages>

src/modules/fancyzones/dll/pch.cpp

@@ -0,0 +1 @@
+#include "pch.h"

src/modules/fancyzones/dll/pch.h

@@ -0,0 +1,18 @@
+#pragma once
+
+#define WIN32_LEAN_AND_MEAN // Exclude rarely-used stuff from Windows headers
+#include <Unknwn.h>
+#include <winrt/base.h>
+#include <ProjectTelemetry.h>
+#include <TraceLoggingActivity.h>
+#include <wil\common.h>
+#include <wil\result.h>
+
+#include "lib\trace.h"
+#include "lib\FancyZones.h"
+#include "lib\Settings.h"
+
+namespace winrt
+{
+    using namespace ::winrt;
+}