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Backends, Viewports: GLFW: Add a workaround for stuck keys after closing a GLFW window (#3837).

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Rokas Kupstys 2021-03-08 10:25:07 +02:00 committed by ocornut
parent b79b1cb9c0
commit a4adf60576
1 changed files with 14 additions and 0 deletions
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14
backends/imgui_impl_glfw.cpp
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@ -84,6 +84,7 @@ static GlfwClientApi g_ClientApi = GlfwClientApi_Unknown;
static double g_Time = 0.0;
static bool g_MouseJustPressed[ImGuiMouseButton_COUNT] = {};
static GLFWcursor* g_MouseCursors[ImGuiMouseCursor_COUNT] = {};
static GLFWwindow* g_KeyOwnerWindows[512] = {};
static bool g_InstalledCallbacks = false;
static bool g_WantUpdateMonitors = true;
@ -135,9 +136,15 @@ void ImGui_ImplGlfw_KeyCallback(GLFWwindow* window, int key, int scancode, int a
ImGuiIO& io = ImGui::GetIO();
if (action == GLFW_PRESS)
{
io.KeysDown[key] = true;
g_KeyOwnerWindows[key] = window;
}
if (action == GLFW_RELEASE)
{
io.KeysDown[key] = false;
g_KeyOwnerWindows[key] = NULL;
}
// Modifiers are not reliable across systems
io.KeyCtrl = io.KeysDown[GLFW_KEY_LEFT_CONTROL] || io.KeysDown[GLFW_KEY_RIGHT_CONTROL];
@ -607,6 +614,13 @@ static void ImGui_ImplGlfw_DestroyWindow(ImGuiViewport* viewport)
HWND hwnd = (HWND)viewport->PlatformHandleRaw;
::RemovePropA(hwnd, "IMGUI_VIEWPORT");
#endif
// Release any keys that were pressed in the window being destroyed and are still held down,
// because we will not receive any release events after window is destroyed.
for (int i = 0; i < IM_ARRAYSIZE(g_KeyOwnerWindows); i++)
if (g_KeyOwnerWindows[i] == data->Window)
ImGui_ImplGlfw_KeyCallback(data->Window, i, 0, GLFW_RELEASE, 0); // Later params are only used for main viewport, on which this function is never called.
glfwDestroyWindow(data->Window);
}
data->Window = NULL;