James Zern f88666eb47 webp_js/*.html: fix canvas mapping ...

after:
24d7f9cb Switch code to SDL2.

fixes:
webp_wasm.js:1 Uncaught TypeError: Cannot read properties of null
    (reading 'addEventListener')
    at Object.registerOrRemoveHandler (webp_wasm.js:1:101330)
    at registerMouseEventCallback (webp_wasm.js:1:154227)
    at _emscripten_set_mousemove_callback_on_thread (webp_wasm.js:1:155015)
    ...

The SDL2 port forces the canvas id to '#canvas':
324df6865a/src/video/emscripten/SDL_emscriptenvideo.c (L210)

This change maps '#output_canvas' to this entry in specialHTMLTargets[]:
https://emscripten.org/docs/api_reference/html5.h.html

https://github.com/libsdl-org/SDL/issues/5260 &
https://github.com/emscripten-ports/SDL2/issues/130 may also be related.

Change-Id: I26f4aa22b9d68b0fc45b83edfe6fe074b59a82a7
Test: emscripten 3.1.16

2024-03-29 12:53:05 -07:00

2.1 KiB

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