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62 lines
1.5 KiB
62 lines
1.5 KiB
#include <esp8266.h>
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#include <httpd.h>
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#include <cgiwebsocket.h>
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#include "cgi_sockets.h"
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#include "uart_driver.h"
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#include "screen.h"
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/**
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* Broadcast screen state to sockets.
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* This is a callback for the Screen module,
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* called after each visible screen modification.
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*/
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void ICACHE_FLASH_ATTR screen_notifyChange()
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{
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// TODO cooldown / buffering to reduce nr of such events
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void *data = NULL;
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const int bufsiz = 512;
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char buff[bufsiz];
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for (int i = 0; i < 20; i++) {
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httpd_cgi_state cont = screenSerializeToBuffer(buff, bufsiz, &data);
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int flg = 0;
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if (cont == HTTPD_CGI_MORE) flg |= WEBSOCK_FLAG_MORE;
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if (i > 0) flg |= WEBSOCK_FLAG_CONT;
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cgiWebsockBroadcast(URL_WS_UPDATE, buff, (int) strlen(buff), flg);
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if (cont == HTTPD_CGI_DONE) break;
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}
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}
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/** Socket received a message */
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void ICACHE_FLASH_ATTR updateSockRx(Websock *ws, char *data, int len, int flags)
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{
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dbg("Sock RX str: %s, len %d", data, len);
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if (strstarts(data, "STR:")) {
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// pass string verbatim
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UART_WriteString(UART0, data+4, UART_TIMEOUT_US);
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}
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else if (strstarts(data, "BTN:")) {
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// send button as low ASCII value 1-9
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int btnNum = data[4] - '0';
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if (btnNum > 0 && btnNum < 10) {
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UART_WriteChar(UART0, (unsigned char)btnNum, UART_TIMEOUT_US);
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}
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}
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else if (strstarts(data, "TAP:")) {
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// TODO
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warn("TODO mouse input handling not implemented!");
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}
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else {
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warn("Bad command.");
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}
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}
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/** Socket connected for updates */
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void ICACHE_FLASH_ATTR updateSockConnect(Websock *ws)
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{
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info("Socket connected to "URL_WS_UPDATE);
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ws->recvCb = updateSockRx;
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}
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