Move closeWindow()/setFullscreen()/setVSynv() from SkWindow to SkOSWindow

src/views/win/SkOSWindow_win.cpp

Index: src/views/win/SkOSWindow_win.cpp
diff --git a/src/views/win/SkOSWindow_win.cpp b/src/views/win/SkOSWindow_win.cpp
index a0288d973c9d15b671dc24ed77885d0d3023d2e5..b0bb76ca19cc05071a108a6902cce64b5e4fee2e 100644
--- a/src/views/win/SkOSWindow_win.cpp
+++ b/src/views/win/SkOSWindow_win.cpp
@@ -60,7 +60,6 @@ SkOSWindow::SkOSWindow(const void* winInit) {
 }
 
 SkOSWindow::~SkOSWindow() {
-    this->setFullscreen(false);
 #if SK_SUPPORT_GPU
     if (fHGLRC) {
         wglDeleteContext((HGLRC)fHGLRC);
@@ -82,8 +81,7 @@ SkOSWindow::~SkOSWindow() {
     }
 #endif // SK_ANGLE
 #endif // SK_SUPPORT_GPU
-    gHwndToOSWindowMap.remove(fHWND);
-    DestroyWindow((HWND)fHWND);
+    this->closeWindow();
 }
 
 static SkKey winToskKey(WPARAM vk) {
@@ -613,106 +611,78 @@ void SkOSWindow::present() {
     }
 }
 
-void SkOSWindow::setFullscreen(bool fullscreen) {
-    if (fullscreen == fFullscreen) {
-        return;
+bool SkOSWindow::makeFullscreen() {
+    if (fFullscreen) {
+        return true;
     }
     if (fHGLRC) {
         this->detachGL();
     }
     // This is hacked together from various sources on the web. It can certainly be improved and be
     // made more robust.
-    if (fullscreen) {
-        // Save current window/resolution information.
-        fSavedWindowState.fZoomed = SkToBool(IsZoomed((HWND)fHWND));
-        if (fSavedWindowState.fZoomed) {
-          SendMessage((HWND)fHWND, WM_SYSCOMMAND, SC_RESTORE, 0);
-        }
-        fSavedWindowState.fStyle = GetWindowLong((HWND)fHWND, GWL_STYLE);
-        fSavedWindowState.fExStyle = GetWindowLong((HWND)fHWND, GWL_EXSTYLE);
-        GetWindowRect((HWND)fHWND, &fSavedWindowState.fRect);
-        DEVMODE dmScreenSettings;                   // Device Mode
-        memset(&dmScreenSettings,0,sizeof(dmScreenSettings));       // Makes Sure Memory's Cleared
-        dmScreenSettings.dmSize=sizeof(dmScreenSettings);       // Size Of The Devmode Structure
-        EnumDisplaySettings(NULL, ENUM_CURRENT_SETTINGS, &dmScreenSettings);
-        fSavedWindowState.fScreenWidth = dmScreenSettings.dmPelsWidth;
-        fSavedWindowState.fScreenHeight = dmScreenSettings.dmPelsHeight;
-        fSavedWindowState.fScreenBits = dmScreenSettings.dmBitsPerPel;
-        fSavedWindowState.fHWND = fHWND;
-    }
-
-    if (fullscreen) {
-        // Try different sizes to find an allowed setting? Use ChangeDisplaySettingsEx?
-        static const int kWidth = 1280;
-        static const int kHeight = 1024;
-        DEVMODE dmScreenSettings;
-        memset(&dmScreenSettings,0,sizeof(dmScreenSettings));
-        dmScreenSettings.dmSize=sizeof(dmScreenSettings);
-        dmScreenSettings.dmPelsWidth    = kWidth;
-        dmScreenSettings.dmPelsHeight   = kHeight;
-        dmScreenSettings.dmBitsPerPel   = 32;
-        dmScreenSettings.dmFields=DM_BITSPERPEL|DM_PELSWIDTH|DM_PELSHEIGHT;
-        if (ChangeDisplaySettings(&dmScreenSettings, CDS_FULLSCREEN) != DISP_CHANGE_SUCCESSFUL) {
-            return;
-        }
-        RECT WindowRect;
-        WindowRect.left = 0;
-        WindowRect.right = kWidth;
-        WindowRect.top = 0;
-        WindowRect.bottom = kHeight;     
-        ShowCursor(FALSE);
-        AdjustWindowRectEx(&WindowRect, WS_POPUP, FALSE, WS_EX_APPWINDOW);
-        HWND fsHWND = CreateWindowEx(
-            WS_EX_APPWINDOW,
-            fWinInit.fClass,
-            NULL,
-            WS_CLIPSIBLINGS | WS_CLIPCHILDREN | WS_POPUP,
-            0, 0, WindowRect.right-WindowRect.left, WindowRect.bottom-WindowRect.top,
-            NULL,
-            NULL,
-            fWinInit.fInstance,
-            NULL
-        );
-        if (!fsHWND) {
-            return;
-        }
-        // Hide the old window and set the entry in the global mapping for this SkOSWindow to the
-        // new HWND.
-        ShowWindow((HWND)fHWND, SW_HIDE);
-        gHwndToOSWindowMap.remove(fHWND);
-        fHWND = fsHWND;
-        gHwndToOSWindowMap.set(fHWND, this);
-        this->updateSize();
-    } else {
-        DEVMODE dmScreenSettings;
-        memset(&dmScreenSettings,0,sizeof(dmScreenSettings));
-        dmScreenSettings.dmSize=sizeof(dmScreenSettings);
-        dmScreenSettings.dmPelsWidth    = fSavedWindowState.fScreenWidth;
-        dmScreenSettings.dmPelsHeight   = fSavedWindowState.fScreenHeight;
-        dmScreenSettings.dmBitsPerPel   = fSavedWindowState.fScreenBits;
-        dmScreenSettings.dmFields=DM_BITSPERPEL|DM_PELSWIDTH|DM_PELSHEIGHT;
-        if (ChangeDisplaySettings(&dmScreenSettings, CDS_FULLSCREEN) != DISP_CHANGE_SUCCESSFUL) {
-            return;
-        }
-        gHwndToOSWindowMap.remove(fHWND);
-        DestroyWindow((HWND)fHWND);
-        fHWND = fSavedWindowState.fHWND;
-        gHwndToOSWindowMap.set(fHWND, this);
-        ShowWindow((HWND)fHWND, SW_SHOW);
-        SetWindowLong((HWND)fHWND, GWL_STYLE, fSavedWindowState.fStyle);
-        SetWindowLong((HWND)fHWND, GWL_EXSTYLE, fSavedWindowState.fExStyle);
-
-        int width = fSavedWindowState.fRect.right - fSavedWindowState.fRect.left;
-        int height = fSavedWindowState.fRect.right - fSavedWindowState.fRect.left;
-        SetWindowPos((HWND)fHWND, NULL, fSavedWindowState.fRect.left, fSavedWindowState.fRect.top,
-                     width, height,
-                     SWP_NOZORDER | SWP_NOACTIVATE | SWP_FRAMECHANGED);
-        if (fSavedWindowState.fZoomed) {
-            SendMessage((HWND)fHWND, WM_SYSCOMMAND, SC_MAXIMIZE, 0);
-        }
-        this->updateSize();
+
+    // Save current window/resolution information. We do this in case we ever implement switching
+    // back to windowed mode.
+    fSavedWindowState.fZoomed = SkToBool(IsZoomed((HWND)fHWND));
+    if (fSavedWindowState.fZoomed) {
+        SendMessage((HWND)fHWND, WM_SYSCOMMAND, SC_RESTORE, 0);
     }
-    fFullscreen = fullscreen;
+    fSavedWindowState.fStyle = GetWindowLong((HWND)fHWND, GWL_STYLE);
+    fSavedWindowState.fExStyle = GetWindowLong((HWND)fHWND, GWL_EXSTYLE);
+    GetWindowRect((HWND)fHWND, &fSavedWindowState.fRect);
+    DEVMODE currScreenSettings;
+    memset(&currScreenSettings,0,sizeof(currScreenSettings));
+    currScreenSettings.dmSize = sizeof(currScreenSettings);
+    EnumDisplaySettings(NULL, ENUM_CURRENT_SETTINGS, &currScreenSettings);
+    fSavedWindowState.fScreenWidth = currScreenSettings.dmPelsWidth;
+    fSavedWindowState.fScreenHeight = currScreenSettings.dmPelsHeight;
+    fSavedWindowState.fScreenBits = currScreenSettings.dmBitsPerPel;
+    fSavedWindowState.fHWND = fHWND;
+
+    // Try different sizes to find an allowed setting? Use ChangeDisplaySettingsEx?
+    static const int kWidth = 1280;
+    static const int kHeight = 1024;
+    DEVMODE newScreenSettings;
+    memset(&newScreenSettings, 0, sizeof(newScreenSettings));
+    newScreenSettings.dmSize = sizeof(newScreenSettings);
+    newScreenSettings.dmPelsWidth    = kWidth;
+    newScreenSettings.dmPelsHeight   = kHeight;
+    newScreenSettings.dmBitsPerPel   = 32;
+    newScreenSettings.dmFields = DM_BITSPERPEL|DM_PELSWIDTH|DM_PELSHEIGHT;
+    if (ChangeDisplaySettings(&newScreenSettings, CDS_FULLSCREEN) != DISP_CHANGE_SUCCESSFUL) {
+        return false;
+    }
+    RECT WindowRect;
+    WindowRect.left = 0;
+    WindowRect.right = kWidth;
+    WindowRect.top = 0;
+    WindowRect.bottom = kHeight;     
+    ShowCursor(FALSE);
+    AdjustWindowRectEx(&WindowRect, WS_POPUP, FALSE, WS_EX_APPWINDOW);
+    HWND fsHWND = CreateWindowEx(
+        WS_EX_APPWINDOW,
+        fWinInit.fClass,
+        NULL,
+        WS_CLIPSIBLINGS | WS_CLIPCHILDREN | WS_POPUP,
+        0, 0, WindowRect.right-WindowRect.left, WindowRect.bottom-WindowRect.top,
+        NULL,
+        NULL,
+        fWinInit.fInstance,
+        NULL
+    );
+    if (!fsHWND) {
+        return false;
+    }
+    // Hide the old window and set the entry in the global mapping for this SkOSWindow to the
+    // new HWND.
+    ShowWindow((HWND)fHWND, SW_HIDE);
+    gHwndToOSWindowMap.remove(fHWND);
+    fHWND = fsHWND;
+    gHwndToOSWindowMap.set(fHWND, this);
+    this->updateSize();
+
+    fFullscreen = true;
+    return true;
 }
 
 void SkOSWindow::setVsync(bool enable) {
@@ -721,7 +691,10 @@ void SkOSWindow::setVsync(bool enable) {
 }
 
 void SkOSWindow::closeWindow() {
-    this->setFullscreen(false);
     DestroyWindow((HWND)fHWND);
+    if (fFullscreen) {
+        DestroyWindow((HWND)fSavedWindowState.fHWND);
+    }
+    gHwndToOSWindowMap.remove(fHWND);
 }
 #endif