274 lines
8.8 KiB
C
274 lines
8.8 KiB
C
/*
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Simple DirectMedia Layer
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Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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#include "SDL_internal.h"
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// Window event handling code for SDL
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#include "SDL_events_c.h"
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#include "SDL_mouse_c.h"
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#include "../render/SDL_sysrender.h"
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#include "../tray/SDL_tray_utils.h"
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static bool SDLCALL RemoveSupercededWindowEvents(void *userdata, SDL_Event *event)
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{
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SDL_Event *new_event = (SDL_Event *)userdata;
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if (event->type == new_event->type &&
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event->window.windowID == new_event->window.windowID) {
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// We're about to post a new move event, drop the old one
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return false;
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}
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return true;
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}
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bool SDL_SendWindowEvent(SDL_Window *window, SDL_EventType windowevent, int data1, int data2)
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{
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bool posted = false;
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if (!window) {
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return false;
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}
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SDL_assert(SDL_ObjectValid(window, SDL_OBJECT_TYPE_WINDOW));
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if (window->is_destroying && windowevent != SDL_EVENT_WINDOW_DESTROYED) {
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return false;
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}
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switch (windowevent) {
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case SDL_EVENT_WINDOW_SHOWN:
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if (!(window->flags & SDL_WINDOW_HIDDEN)) {
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return false;
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}
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window->flags &= ~(SDL_WINDOW_HIDDEN | SDL_WINDOW_MINIMIZED);
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break;
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case SDL_EVENT_WINDOW_HIDDEN:
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if (window->flags & SDL_WINDOW_HIDDEN) {
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return false;
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}
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window->flags |= SDL_WINDOW_HIDDEN;
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break;
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case SDL_EVENT_WINDOW_EXPOSED:
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window->flags &= ~SDL_WINDOW_OCCLUDED;
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break;
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case SDL_EVENT_WINDOW_MOVED:
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window->undefined_x = false;
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window->undefined_y = false;
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window->last_position_pending = false;
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if (!(window->flags & SDL_WINDOW_FULLSCREEN)) {
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window->windowed.x = data1;
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window->windowed.y = data2;
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if (!(window->flags & SDL_WINDOW_MAXIMIZED) && !window->tiled) {
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window->floating.x = data1;
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window->floating.y = data2;
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}
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}
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if (data1 == window->x && data2 == window->y) {
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return false;
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}
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window->x = data1;
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window->y = data2;
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break;
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case SDL_EVENT_WINDOW_RESIZED:
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window->last_size_pending = false;
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if (!(window->flags & SDL_WINDOW_FULLSCREEN)) {
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window->windowed.w = data1;
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window->windowed.h = data2;
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if (!(window->flags & SDL_WINDOW_MAXIMIZED) && !window->tiled) {
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window->floating.w = data1;
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window->floating.h = data2;
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}
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}
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if (data1 == window->w && data2 == window->h) {
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SDL_CheckWindowPixelSizeChanged(window);
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return false;
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}
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window->w = data1;
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window->h = data2;
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break;
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case SDL_EVENT_WINDOW_PIXEL_SIZE_CHANGED:
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if (data1 == window->last_pixel_w && data2 == window->last_pixel_h) {
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return false;
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}
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window->last_pixel_w = data1;
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window->last_pixel_h = data2;
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break;
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case SDL_EVENT_WINDOW_MINIMIZED:
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if (window->flags & SDL_WINDOW_MINIMIZED) {
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return false;
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}
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window->flags &= ~SDL_WINDOW_MAXIMIZED;
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window->flags |= SDL_WINDOW_MINIMIZED;
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break;
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case SDL_EVENT_WINDOW_MAXIMIZED:
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if (window->flags & SDL_WINDOW_MAXIMIZED) {
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return false;
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}
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window->flags &= ~SDL_WINDOW_MINIMIZED;
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window->flags |= SDL_WINDOW_MAXIMIZED;
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break;
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case SDL_EVENT_WINDOW_RESTORED:
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if (!(window->flags & (SDL_WINDOW_MINIMIZED | SDL_WINDOW_MAXIMIZED))) {
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return false;
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}
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window->flags &= ~(SDL_WINDOW_MINIMIZED | SDL_WINDOW_MAXIMIZED);
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break;
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case SDL_EVENT_WINDOW_MOUSE_ENTER:
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if (window->flags & SDL_WINDOW_MOUSE_FOCUS) {
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return false;
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}
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window->flags |= SDL_WINDOW_MOUSE_FOCUS;
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break;
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case SDL_EVENT_WINDOW_MOUSE_LEAVE:
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if (!(window->flags & SDL_WINDOW_MOUSE_FOCUS)) {
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return false;
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}
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window->flags &= ~SDL_WINDOW_MOUSE_FOCUS;
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break;
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case SDL_EVENT_WINDOW_FOCUS_GAINED:
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if (window->flags & SDL_WINDOW_INPUT_FOCUS) {
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return false;
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}
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window->flags |= SDL_WINDOW_INPUT_FOCUS;
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break;
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case SDL_EVENT_WINDOW_FOCUS_LOST:
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if (!(window->flags & SDL_WINDOW_INPUT_FOCUS)) {
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return false;
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}
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window->flags &= ~SDL_WINDOW_INPUT_FOCUS;
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break;
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case SDL_EVENT_WINDOW_DISPLAY_CHANGED:
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if (data1 == 0 || (SDL_DisplayID)data1 == window->last_displayID) {
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return false;
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}
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window->last_displayID = (SDL_DisplayID)data1;
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break;
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case SDL_EVENT_WINDOW_OCCLUDED:
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if (window->flags & SDL_WINDOW_OCCLUDED) {
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return false;
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}
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window->flags |= SDL_WINDOW_OCCLUDED;
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break;
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case SDL_EVENT_WINDOW_ENTER_FULLSCREEN:
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if (window->flags & SDL_WINDOW_FULLSCREEN) {
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return false;
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}
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window->flags |= SDL_WINDOW_FULLSCREEN;
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break;
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case SDL_EVENT_WINDOW_LEAVE_FULLSCREEN:
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if (!(window->flags & SDL_WINDOW_FULLSCREEN)) {
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return false;
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}
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window->flags &= ~SDL_WINDOW_FULLSCREEN;
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break;
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default:
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break;
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}
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// Post the event, if desired
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SDL_Event event;
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event.type = windowevent;
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event.common.timestamp = 0;
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event.window.data1 = data1;
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event.window.data2 = data2;
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event.window.windowID = window->id;
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for (int i = 0; i < window->num_renderers; ++i) {
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SDL_Renderer *renderer = window->renderers[i];
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SDL_RendererEventWatch(renderer, &event);
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}
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if (SDL_EventEnabled(windowevent)) {
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// Fixes queue overflow with move/resize events that aren't processed
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if (windowevent == SDL_EVENT_WINDOW_MOVED ||
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windowevent == SDL_EVENT_WINDOW_RESIZED ||
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windowevent == SDL_EVENT_WINDOW_PIXEL_SIZE_CHANGED ||
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windowevent == SDL_EVENT_WINDOW_SAFE_AREA_CHANGED ||
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windowevent == SDL_EVENT_WINDOW_EXPOSED ||
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windowevent == SDL_EVENT_WINDOW_OCCLUDED) {
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SDL_FilterEvents(RemoveSupercededWindowEvents, &event);
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}
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posted = SDL_PushEvent(&event);
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}
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switch (windowevent) {
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case SDL_EVENT_WINDOW_SHOWN:
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SDL_OnWindowShown(window);
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break;
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case SDL_EVENT_WINDOW_HIDDEN:
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SDL_OnWindowHidden(window);
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break;
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case SDL_EVENT_WINDOW_MOVED:
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SDL_OnWindowMoved(window);
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break;
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case SDL_EVENT_WINDOW_RESIZED:
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SDL_OnWindowResized(window);
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break;
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case SDL_EVENT_WINDOW_PIXEL_SIZE_CHANGED:
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SDL_OnWindowPixelSizeChanged(window);
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break;
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case SDL_EVENT_WINDOW_MINIMIZED:
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SDL_OnWindowMinimized(window);
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break;
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case SDL_EVENT_WINDOW_MAXIMIZED:
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SDL_OnWindowMaximized(window);
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break;
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case SDL_EVENT_WINDOW_RESTORED:
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SDL_OnWindowRestored(window);
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break;
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case SDL_EVENT_WINDOW_MOUSE_ENTER:
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SDL_OnWindowEnter(window);
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break;
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case SDL_EVENT_WINDOW_MOUSE_LEAVE:
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SDL_OnWindowLeave(window);
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break;
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case SDL_EVENT_WINDOW_FOCUS_GAINED:
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SDL_OnWindowFocusGained(window);
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break;
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case SDL_EVENT_WINDOW_FOCUS_LOST:
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SDL_OnWindowFocusLost(window);
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break;
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case SDL_EVENT_WINDOW_DISPLAY_CHANGED:
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SDL_OnWindowDisplayChanged(window);
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break;
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default:
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break;
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}
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if (windowevent == SDL_EVENT_WINDOW_CLOSE_REQUESTED && !window->parent && !SDL_HasActiveTrays()) {
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int toplevel_count = 0;
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SDL_Window *n;
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for (n = SDL_GetVideoDevice()->windows; n; n = n->next) {
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if (!n->parent && !(n->flags & SDL_WINDOW_HIDDEN)) {
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++toplevel_count;
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}
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}
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if (toplevel_count <= 1) {
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if (SDL_GetHintBoolean(SDL_HINT_QUIT_ON_LAST_WINDOW_CLOSE, true)) {
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SDL_SendQuit(); // This is the last toplevel window in the list so send the SDL_EVENT_QUIT event
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}
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}
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}
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return posted;
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}
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