Null: Make platform more conformant

From upstream: e0c77f71f9.

glfw/null_window.c

@@ -30,12 +30,71 @@
 #include "internal.h"
 #include "../kitty/monotonic.h"
 
+#include <stdlib.h>
+
+static void applySizeLimits(_GLFWwindow* window, int* width, int* height)
+{
+    if (window->numer != GLFW_DONT_CARE && window->denom != GLFW_DONT_CARE)
+    {
+        const float ratio = (float) window->numer / (float) window->denom;
+        *height = (int) (*width / ratio);
+    }
+
+    if (window->minwidth != GLFW_DONT_CARE && *width < window->minwidth)
+        *width = window->minwidth;
+    else if (window->maxwidth != GLFW_DONT_CARE && *width > window->maxwidth)
+        *width = window->maxwidth;
+
+    if (window->minheight != GLFW_DONT_CARE && *height < window->minheight)
+        *height = window->minheight;
+    else if (window->maxheight != GLFW_DONT_CARE && *height > window->maxheight)
+        *height = window->maxheight;
+}
+
+static void fitToMonitor(_GLFWwindow* window)
+{
+    GLFWvidmode mode;
+    _glfwPlatformGetVideoMode(window->monitor, &mode);
+    _glfwPlatformGetMonitorPos(window->monitor,
+                               &window->null.xpos,
+                               &window->null.ypos);
+    window->null.width = mode.width;
+    window->null.height = mode.height;
+}
+
+static void acquireMonitor(_GLFWwindow* window)
+{
+    _glfwInputMonitorWindow(window->monitor, window);
+}
+
+static void releaseMonitor(_GLFWwindow* window)
+{
+    if (window->monitor->window != window)
+        return;
+
+    _glfwInputMonitorWindow(window->monitor, NULL);
+}
 
 static int createNativeWindow(_GLFWwindow* window,
-                              const _GLFWwndconfig* wndconfig)
+                              const _GLFWwndconfig* wndconfig,
+                              const _GLFWfbconfig* fbconfig)
 {
-    window->null.width = wndconfig->width;
-    window->null.height = wndconfig->height;
+    if (window->monitor)
+        fitToMonitor(window);
+    else
+    {
+        window->null.xpos = 17;
+        window->null.ypos = 17;
+        window->null.width = wndconfig->width;
+        window->null.height = wndconfig->height;
+    }
+
+    window->null.visible = wndconfig->visible;
+    window->null.decorated = wndconfig->decorated;
+    window->null.maximized = wndconfig->maximized;
+    window->null.floating = wndconfig->floating;
+    window->null.transparent = fbconfig->transparent;
+    window->null.opacity = 1.f;
 
     return true;
 }
@@ -50,7 +109,7 @@ int _glfwPlatformCreateWindow(_GLFWwindow* window,
                               const _GLFWctxconfig* ctxconfig,
                               const _GLFWfbconfig* fbconfig)
 {
-    if (!createNativeWindow(window, wndconfig))
+    if (!createNativeWindow(window, wndconfig, fbconfig))
         return false;
 
     if (ctxconfig->client != GLFW_NO_API)
@@ -70,11 +129,24 @@ int _glfwPlatformCreateWindow(_GLFWwindow* window,
         }
     }
 
+    if (window->monitor)
+    {
+        _glfwPlatformShowWindow(window);
+        _glfwPlatformFocusWindow(window);
+        acquireMonitor(window);
+    }
+
     return true;
 }
 
 void _glfwPlatformDestroyWindow(_GLFWwindow* window)
 {
+    if (window->monitor)
+        releaseMonitor(window);
+
+    if (_glfw.null.focusedWindow == window)
+        _glfw.null.focusedWindow = NULL;
+
     if (window->context.destroy)
         window->context.destroy(window);
 }
@@ -88,20 +160,60 @@ void _glfwPlatformSetWindowIcon(_GLFWwindow* window UNUSED, int count UNUSED,
 {
 }
 
-void _glfwPlatformSetWindowMonitor(_GLFWwindow* window UNUSED,
-                                   _GLFWmonitor* monitor UNUSED,
-                                   int xpos UNUSED, int ypos UNUSED,
-                                   int width UNUSED, int height UNUSED,
+void _glfwPlatformSetWindowMonitor(_GLFWwindow* window,
+                                   _GLFWmonitor* monitor,
+                                   int xpos, int ypos,
+                                   int width, int height,
                                    int refreshRate UNUSED)
 {
+    if (window->monitor == monitor)
+    {
+        if (!monitor)
+        {
+            _glfwPlatformSetWindowPos(window, xpos, ypos);
+            _glfwPlatformSetWindowSize(window, width, height);
+        }
+
+        return;
+    }
+
+    if (window->monitor)
+        releaseMonitor(window);
+
+    _glfwInputWindowMonitor(window, monitor);
+
+    if (window->monitor)
+    {
+        window->null.visible = true;
+        acquireMonitor(window);
+        fitToMonitor(window);
+    }
+    else
+    {
+        _glfwPlatformSetWindowPos(window, xpos, ypos);
+        _glfwPlatformSetWindowSize(window, width, height);
+    }
 }
 
-void _glfwPlatformGetWindowPos(_GLFWwindow* window UNUSED, int* xpos UNUSED, int* ypos UNUSED)
+void _glfwPlatformGetWindowPos(_GLFWwindow* window, int* xpos, int* ypos)
 {
+    if (xpos)
+        *xpos = window->null.xpos;
+    if (ypos)
+        *ypos = window->null.ypos;
 }
 
-void _glfwPlatformSetWindowPos(_GLFWwindow* window UNUSED, int xpos UNUSED, int ypos UNUSED)
+void _glfwPlatformSetWindowPos(_GLFWwindow* window, int xpos, int ypos)
 {
+    if (window->monitor)
+        return;
+
+    if (window->null.xpos != xpos || window->null.ypos != ypos)
+    {
+        window->null.xpos = xpos;
+        window->null.ypos = ypos;
+        _glfwInputWindowPos(window, xpos, ypos);
+    }
 }
 
 void _glfwPlatformGetWindowSize(_GLFWwindow* window, int* width, int* height)
@@ -114,18 +226,34 @@ void _glfwPlatformGetWindowSize(_GLFWwindow* window, int* width, int* height)
 
 void _glfwPlatformSetWindowSize(_GLFWwindow* window, int width, int height)
 {
-    window->null.width = width;
-    window->null.height = height;
+    if (window->monitor)
+        return;
+
+    if (window->null.width != width || window->null.height != height)
+    {
+        window->null.width = width;
+        window->null.height = height;
+        _glfwInputWindowSize(window, width, height);
+        _glfwInputFramebufferSize(window, width, height);
+    }
 }
 
-void _glfwPlatformSetWindowSizeLimits(_GLFWwindow* window UNUSED,
+void _glfwPlatformSetWindowSizeLimits(_GLFWwindow* window,
                                       int minwidth UNUSED, int minheight UNUSED,
                                       int maxwidth UNUSED, int maxheight UNUSED)
 {
+    int width = window->null.width;
+    int height = window->null.height;
+    applySizeLimits(window, &width, &height);
+    _glfwPlatformSetWindowSize(window, width, height);
 }
 
-void _glfwPlatformSetWindowAspectRatio(_GLFWwindow* window UNUSED, int n UNUSED, int d UNUSED)
+void _glfwPlatformSetWindowAspectRatio(_GLFWwindow* window, int n UNUSED, int d UNUSED)
 {
+    int width = window->null.width;
+    int height = window->null.height;
+    applySizeLimits(window, &width, &height);
+    _glfwPlatformSetWindowSize(window, width, height);
 }
 
 void _glfwPlatformSetWindowSizeIncrements(_GLFWwindow* window UNUSED, int widthincr UNUSED, int heightincr UNUSED)
@@ -140,10 +268,17 @@ void _glfwPlatformGetFramebufferSize(_GLFWwindow* window, int* width, int* heigh
         *height = window->null.height;
 }
 
-void _glfwPlatformGetWindowFrameSize(_GLFWwindow* window UNUSED,
-                                     int* left UNUSED, int* top UNUSED,
-                                     int* right UNUSED, int* bottom UNUSED)
+void _glfwPlatformGetWindowFrameSize(_GLFWwindow* window,
+                                     int* left, int* top,
+                                     int* right, int* bottom)
 {
+    if (window->null.decorated && !window->monitor)
+    {
+        *left = 1;
+        *top = 10;
+        *right = 1;
+        *bottom = 1;
+    }
 }
 
 void _glfwPlatformGetWindowContentScale(_GLFWwindow* window UNUSED,
@@ -160,52 +295,91 @@ monotonic_t _glfwPlatformGetDoubleClickInterval(_GLFWwindow* window UNUSED)
     return ms_to_monotonic_t(500ll);
 }
 
-void _glfwPlatformIconifyWindow(_GLFWwindow* window UNUSED)
+void _glfwPlatformIconifyWindow(_GLFWwindow* window)
 {
+    if (_glfw.null.focusedWindow == window)
+    {
+        _glfw.null.focusedWindow = NULL;
+        _glfwInputWindowFocus(window, false);
+    }
+
+    if (!window->null.iconified)
+    {
+        window->null.iconified = true;
+        _glfwInputWindowIconify(window, true);
+
+        if (window->monitor)
+            releaseMonitor(window);
+    }
 }
 
-void _glfwPlatformRestoreWindow(_GLFWwindow* window UNUSED)
+void _glfwPlatformRestoreWindow(_GLFWwindow* window)
 {
+    if (window->null.iconified)
+    {
+        window->null.iconified = false;
+        _glfwInputWindowIconify(window, false);
+
+        if (window->monitor)
+            acquireMonitor(window);
+    }
+    else if (window->null.maximized)
+    {
+        window->null.maximized = false;
+        _glfwInputWindowMaximize(window, false);
+    }
 }
 
-void _glfwPlatformMaximizeWindow(_GLFWwindow* window UNUSED)
+void _glfwPlatformMaximizeWindow(_GLFWwindow* window)
 {
+    if (!window->null.maximized)
+    {
+        window->null.maximized = true;
+        _glfwInputWindowMaximize(window, true);
+    }
 }
 
-int _glfwPlatformWindowMaximized(_GLFWwindow* window UNUSED)
+int _glfwPlatformWindowMaximized(_GLFWwindow* window)
 {
-    return false;
+    return window->null.maximized;
 }
 
-int _glfwPlatformWindowHovered(_GLFWwindow* window UNUSED)
+int _glfwPlatformWindowHovered(_GLFWwindow* window)
 {
-    return false;
+    return _glfw.null.xcursor >= window->null.xpos &&
+           _glfw.null.ycursor >= window->null.ypos &&
+           _glfw.null.xcursor <= window->null.xpos + window->null.width - 1 &&
+           _glfw.null.ycursor <= window->null.ypos + window->null.height - 1;
 }
 
-int _glfwPlatformFramebufferTransparent(_GLFWwindow* window UNUSED)
+int _glfwPlatformFramebufferTransparent(_GLFWwindow* window)
 {
-    return false;
+    return window->null.transparent;
 }
 
-void _glfwPlatformSetWindowResizable(_GLFWwindow* window UNUSED, bool enabled UNUSED)
+void _glfwPlatformSetWindowResizable(_GLFWwindow* window, bool enabled)
 {
+    window->null.resizable = enabled;
 }
 
-void _glfwPlatformSetWindowDecorated(_GLFWwindow* window UNUSED, bool enabled UNUSED)
+void _glfwPlatformSetWindowDecorated(_GLFWwindow* window, bool enabled)
 {
+    window->null.decorated = enabled;
 }
 
-void _glfwPlatformSetWindowFloating(_GLFWwindow* window UNUSED, bool enabled UNUSED)
+void _glfwPlatformSetWindowFloating(_GLFWwindow* window, bool enabled)
 {
+    window->null.floating = enabled;
 }
 
-float _glfwPlatformGetWindowOpacity(_GLFWwindow* window UNUSED)
+float _glfwPlatformGetWindowOpacity(_GLFWwindow* window)
 {
-    return 1.f;
+    return window->null.opacity;
 }
 
-void _glfwPlatformSetWindowOpacity(_GLFWwindow* window UNUSED, float opacity UNUSED)
+void _glfwPlatformSetWindowOpacity(_GLFWwindow* window, float opacity)
 {
+    window->null.opacity = opacity;
 }
 
 void _glfwPlatformSetRawMouseMotion(_GLFWwindow *window UNUSED, bool enabled UNUSED)
@@ -214,14 +388,14 @@ void _glfwPlatformSetRawMouseMotion(_GLFWwindow *window UNUSED, bool enabled UNU
 
 bool _glfwPlatformRawMouseMotionSupported(void)
 {
-    return false;
+    return true;
 }
 
-void _glfwPlatformShowWindow(_GLFWwindow* window UNUSED)
+void _glfwPlatformShowWindow(_GLFWwindow* window)
 {
+    window->null.visible = true;
 }
 
-
 void _glfwPlatformRequestWindowAttention(_GLFWwindow* window UNUSED)
 {
 }
@@ -231,21 +405,41 @@ int _glfwPlatformWindowBell(_GLFWwindow* window UNUSED)
     return false;
 }
 
-void _glfwPlatformUnhideWindow(_GLFWwindow* window UNUSED)
+void _glfwPlatformHideWindow(_GLFWwindow* window)
 {
+    if (_glfw.null.focusedWindow == window)
+    {
+        _glfw.null.focusedWindow = NULL;
+        _glfwInputWindowFocus(window, false);
+    }
+
+    window->null.visible = false;
 }
 
-void _glfwPlatformHideWindow(_GLFWwindow* window UNUSED)
+void _glfwPlatformFocusWindow(_GLFWwindow* window)
 {
+    if (_glfw.null.focusedWindow == window)
+        return;
+
+    if (!window->null.visible)
+        return;
+
+    _GLFWwindow* previous = _glfw.null.focusedWindow;
+    _glfw.null.focusedWindow = window;
+
+    if (previous)
+    {
+        _glfwInputWindowFocus(previous, false);
+        if (previous->monitor && previous->autoIconify)
+            _glfwPlatformIconifyWindow(previous);
+    }
+
+    _glfwInputWindowFocus(window, true);
 }
 
-void _glfwPlatformFocusWindow(_GLFWwindow* window UNUSED)
+int _glfwPlatformWindowFocused(_GLFWwindow* window)
 {
-}
-
-int _glfwPlatformWindowFocused(_GLFWwindow* window UNUSED)
-{
-    return false;
+    return _glfw.null.focusedWindow == window;
 }
 
 int _glfwPlatformWindowOccluded(_GLFWwindow* window UNUSED)
@@ -253,14 +447,14 @@ int _glfwPlatformWindowOccluded(_GLFWwindow* window UNUSED)
     return false;
 }
 
-int _glfwPlatformWindowIconified(_GLFWwindow* window UNUSED)
+int _glfwPlatformWindowIconified(_GLFWwindow* window)
 {
-    return false;
+    return window->null.iconified;
 }
 
-int _glfwPlatformWindowVisible(_GLFWwindow* window UNUSED)
+int _glfwPlatformWindowVisible(_GLFWwindow* window)
 {
-    return false;
+    return window->null.visible;
 }
 
 void _glfwPlatformPollEvents(void)
@@ -279,12 +473,18 @@ void _glfwPlatformPostEmptyEvent(void)
 {
 }
 
-void _glfwPlatformGetCursorPos(_GLFWwindow* window UNUSED, double* xpos UNUSED, double* ypos UNUSED)
+void _glfwPlatformGetCursorPos(_GLFWwindow* window, double* xpos, double* ypos)
 {
+    if (xpos)
+        *xpos = _glfw.null.xcursor - window->null.xpos;
+    if (ypos)
+        *ypos = _glfw.null.ycursor - window->null.ypos;
 }
 
-void _glfwPlatformSetCursorPos(_GLFWwindow* window UNUSED, double x UNUSED, double y UNUSED)
+void _glfwPlatformSetCursorPos(_GLFWwindow* window, double x, double y)
 {
+    _glfw.null.xcursor = window->null.xpos + (int) x;
+    _glfw.null.ycursor = window->null.ypos + (int) y;
 }
 
 void _glfwPlatformSetCursorMode(_GLFWwindow* window UNUSED, int mode UNUSED)
@@ -311,23 +511,142 @@ void _glfwPlatformSetCursor(_GLFWwindow* window UNUSED, _GLFWcursor* cursor UNUS
 {
 }
 
-void _glfwPlatformSetClipboardString(const char* string UNUSED)
+void _glfwPlatformSetClipboardString(const char* string)
 {
+    char* copy = _glfw_strdup(string);
+    free(_glfw.null.clipboardString);
+    _glfw.null.clipboardString = copy;
 }
 
 const char* _glfwPlatformGetClipboardString(void)
 {
+    return _glfw.null.clipboardString;
+}
+
+const char* _glfwPlatformGetNativeKeyName(int native_key)
+{
+    switch (scancode)
+    {
+        case GLFW_KEY_APOSTROPHE:
+            return "'";
+        case GLFW_KEY_COMMA:
+            return ",";
+        case GLFW_KEY_MINUS:
+        case GLFW_KEY_KP_SUBTRACT:
+            return "-";
+        case GLFW_KEY_PERIOD:
+        case GLFW_KEY_KP_DECIMAL:
+            return ".";
+        case GLFW_KEY_SLASH:
+        case GLFW_KEY_KP_DIVIDE:
+            return "/";
+        case GLFW_KEY_SEMICOLON:
+            return ";";
+        case GLFW_KEY_EQUAL:
+        case GLFW_KEY_KP_EQUAL:
+            return "=";
+        case GLFW_KEY_LEFT_BRACKET:
+            return "[";
+        case GLFW_KEY_RIGHT_BRACKET:
+            return "]";
+        case GLFW_KEY_KP_MULTIPLY:
+            return "*";
+        case GLFW_KEY_KP_ADD:
+            return "+";
+        case GLFW_KEY_BACKSLASH:
+        case GLFW_KEY_WORLD_1:
+        case GLFW_KEY_WORLD_2:
+            return "\\";
+        case GLFW_KEY_0:
+        case GLFW_KEY_KP_0:
+            return "0";
+        case GLFW_KEY_1:
+        case GLFW_KEY_KP_1:
+            return "1";
+        case GLFW_KEY_2:
+        case GLFW_KEY_KP_2:
+            return "2";
+        case GLFW_KEY_3:
+        case GLFW_KEY_KP_3:
+            return "3";
+        case GLFW_KEY_4:
+        case GLFW_KEY_KP_4:
+            return "4";
+        case GLFW_KEY_5:
+        case GLFW_KEY_KP_5:
+            return "5";
+        case GLFW_KEY_6:
+        case GLFW_KEY_KP_6:
+            return "6";
+        case GLFW_KEY_7:
+        case GLFW_KEY_KP_7:
+            return "7";
+        case GLFW_KEY_8:
+        case GLFW_KEY_KP_8:
+            return "8";
+        case GLFW_KEY_9:
+        case GLFW_KEY_KP_9:
+            return "9";
+        case GLFW_KEY_A:
+            return "a";
+        case GLFW_KEY_B:
+            return "b";
+        case GLFW_KEY_C:
+            return "c";
+        case GLFW_KEY_D:
+            return "d";
+        case GLFW_KEY_E:
+            return "e";
+        case GLFW_KEY_F:
+            return "f";
+        case GLFW_KEY_G:
+            return "g";
+        case GLFW_KEY_H:
+            return "h";
+        case GLFW_KEY_I:
+            return "i";
+        case GLFW_KEY_J:
+            return "j";
+        case GLFW_KEY_K:
+            return "k";
+        case GLFW_KEY_L:
+            return "l";
+        case GLFW_KEY_M:
+            return "m";
+        case GLFW_KEY_N:
+            return "n";
+        case GLFW_KEY_O:
+            return "o";
+        case GLFW_KEY_P:
+            return "p";
+        case GLFW_KEY_Q:
+            return "q";
+        case GLFW_KEY_R:
+            return "r";
+        case GLFW_KEY_S:
+            return "s";
+        case GLFW_KEY_T:
+            return "t";
+        case GLFW_KEY_U:
+            return "u";
+        case GLFW_KEY_V:
+            return "v";
+        case GLFW_KEY_W:
+            return "w";
+        case GLFW_KEY_X:
+            return "x";
+        case GLFW_KEY_Y:
+            return "y";
+        case GLFW_KEY_Z:
+            return "z";
+    }
+
     return NULL;
 }
 
-const char* _glfwPlatformGetNativeKeyName(int native_key UNUSED)
+int _glfwPlatformGetNativeKeyForKey(int key)
 {
-    return "";
-}
-
-int _glfwPlatformGetNativeKeyForKey(int key UNUSED)
-{
-    return -1;
+    return key;
 }
 
 void _glfwPlatformGetRequiredInstanceExtensions(char** extensions UNUSED)
@@ -347,6 +666,6 @@ VkResult _glfwPlatformCreateWindowSurface(VkInstance instance UNUSED,
                                           VkSurfaceKHR* surface UNUSED)
 {
     // This seems like the most appropriate error to return here
-    return VK_ERROR_INITIALIZATION_FAILED;
+    return VK_ERROR_EXTENSION_NOT_PRESENT;
 }