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[web] Fix Emscripten's Closure compiler error: undeclared canvas variable (#5507)

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* Fix Emscripten Closure compiler error: undeclared canvas variable

* Fix hardcoded canvas IDs in web targets
This commit is contained in:
Viktor Demčák 2026-01-24 21:21:43 +01:00 committed by GitHub
parent a33ae4a8ef
commit 70a63f7c62
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GPG Key ID: B5690EEEBB952194
2 changed files with 8 additions and 6 deletions
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9
src/platforms/rcore_web.c
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@ -316,15 +316,16 @@ void ToggleBorderlessWindowed(void)
// 2. The style unset handles the possibility of a width="value%" like on the default shell.html file // 2. The style unset handles the possibility of a width="value%" like on the default shell.html file
EM_ASM EM_ASM
( (
const canvasId = UTF8ToString($0);
setTimeout(function() setTimeout(function()
{ {
Module.requestFullscreen(false, true); Module.requestFullscreen(false, true);
setTimeout(function() setTimeout(function()
{ {
canvas.style.width="unset"; document.querySelector(canvasId).style.width="unset";
}, 100); }, 100);
}, 100); }, 100);
); , platform.canvasId);
FLAG_SET(CORE.Window.flags, FLAG_BORDERLESS_WINDOWED_MODE); FLAG_SET(CORE.Window.flags, FLAG_BORDERLESS_WINDOWED_MODE);
} }
} }
@ -1238,9 +1239,9 @@ int InitPlatform(void)
// Avoid creating a WebGL canvas, avoid calling glfwCreateWindow() // Avoid creating a WebGL canvas, avoid calling glfwCreateWindow()
emscripten_set_canvas_element_size(platform.canvasId, CORE.Window.screen.width, CORE.Window.screen.height); emscripten_set_canvas_element_size(platform.canvasId, CORE.Window.screen.width, CORE.Window.screen.height);
EM_ASM({ EM_ASM({
const canvas = document.getElementById("canvas"); const canvas = document.querySelector(UTF8ToString($0));
Module.canvas = canvas; Module.canvas = canvas;
}); }, platform.canvasId);
// Load memory framebuffer with desired screen size // Load memory framebuffer with desired screen size
// NOTE: Despite using a software framebuffer for blitting, GLFW still creates a WebGL canvas, // NOTE: Despite using a software framebuffer for blitting, GLFW still creates a WebGL canvas,

5
src/platforms/rcore_web_emscripten.c
View File

@ -280,15 +280,16 @@ void ToggleBorderlessWindowed(void)
// 2. The style unset handles the possibility of a width="value%" like on the default shell.html file // 2. The style unset handles the possibility of a width="value%" like on the default shell.html file
EM_ASM EM_ASM
( (
const canvasId = UTF8ToString($0);
setTimeout(function() setTimeout(function()
{ {
Module.requestFullscreen(false, true); Module.requestFullscreen(false, true);
setTimeout(function() setTimeout(function()
{ {
canvas.style.width="unset"; document.querySelector(canvasId).style.width="unset";
}, 100); }, 100);
}, 100); }, 100);
); , platform.canvasId);
FLAG_SET(CORE.Window.flags, FLAG_BORDERLESS_WINDOWED_MODE); FLAG_SET(CORE.Window.flags, FLAG_BORDERLESS_WINDOWED_MODE);
} }
} }