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Backends: SDL2, SDL3: ignore events of other SDL windows. (#7853)

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This commit is contained in:
Anonymous Maarten
2024-08-02 00:05:51 +02:00
committed by ocornut
parent 29fadad193
commit 591a18a9c4
2 changed files with 30 additions and 0 deletions
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12
backends/imgui_impl_sdl2.cpp
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@@ -321,6 +321,8 @@ bool ImGui_ImplSDL2_ProcessEvent(const SDL_Event* event)
{
case SDL_MOUSEMOTION:
{
if (event->motion.windowID != SDL_GetWindowID(bd->Window))
return false;
ImVec2 mouse_pos((float)event->motion.x, (float)event->motion.y);
io.AddMouseSourceEvent(event->motion.which == SDL_TOUCH_MOUSEID ? ImGuiMouseSource_TouchScreen : ImGuiMouseSource_Mouse);
io.AddMousePosEvent(mouse_pos.x, mouse_pos.y);
@@ -328,6 +330,8 @@ bool ImGui_ImplSDL2_ProcessEvent(const SDL_Event* event)
}
case SDL_MOUSEWHEEL:
{
if (event->wheel.windowID != SDL_GetWindowID(bd->Window))
return false;
//IMGUI_DEBUG_LOG("wheel %.2f %.2f, precise %.2f %.2f\n", (float)event->wheel.x, (float)event->wheel.y, event->wheel.preciseX, event->wheel.preciseY);
#if SDL_VERSION_ATLEAST(2,0,18) // If this fails to compile on Emscripten: update to latest Emscripten!
float wheel_x = -event->wheel.preciseX;
@@ -346,6 +350,8 @@ bool ImGui_ImplSDL2_ProcessEvent(const SDL_Event* event)
case SDL_MOUSEBUTTONDOWN:
case SDL_MOUSEBUTTONUP:
{
if (event->button.windowID != SDL_GetWindowID(bd->Window))
return false;
int mouse_button = -1;
if (event->button.button == SDL_BUTTON_LEFT) { mouse_button = 0; }
if (event->button.button == SDL_BUTTON_RIGHT) { mouse_button = 1; }
@@ -361,12 +367,16 @@ bool ImGui_ImplSDL2_ProcessEvent(const SDL_Event* event)
}
case SDL_TEXTINPUT:
{
if (event->text.windowID != SDL_GetWindowID(bd->Window))
return false;
io.AddInputCharactersUTF8(event->text.text);
return true;
}
case SDL_KEYDOWN:
case SDL_KEYUP:
{
if (event->key.windowID != SDL_GetWindowID(bd->Window))
return false;
ImGui_ImplSDL2_UpdateKeyModifiers((SDL_Keymod)event->key.keysym.mod);
ImGuiKey key = ImGui_ImplSDL2_KeyEventToImGuiKey(event->key.keysym.sym, event->key.keysym.scancode);
io.AddKeyEvent(key, (event->type == SDL_KEYDOWN));
@@ -375,6 +385,8 @@ bool ImGui_ImplSDL2_ProcessEvent(const SDL_Event* event)
}
case SDL_WINDOWEVENT:
{
if (event->window.windowID != SDL_GetWindowID(bd->Window))
return false;
// - When capturing mouse, SDL will send a bunch of conflicting LEAVE/ENTER event on every mouse move, but the final ENTER tends to be right.
// - However we won't get a correct LEAVE event for a captured window.
// - In some cases, when detaching a window from main viewport SDL may send SDL_WINDOWEVENT_ENTER one frame too late,