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Add device-dashboard
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cpq committed
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@@ -0,0 +1,32 @@
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# Environment setup: https://mongoose.ws/docs/getting-started/build-environment/
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PROG ?= server
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MGDIR ?= ../../..
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SOURCES = server.c dashboard.html.c $(MGDIR)/mongoose.c
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CFLAGS ?= -W -Wall -Wextra -Werror -Wundef -Wshadow -g3 -O0
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PFLAGS = -I$(MGDIR) -DMG_DATA_SIZE=64 -DMG_TLS=MG_TLS_BUILTIN
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AFLAGS ?= -fsanitize=signed-integer-overflow,address,undefined,alignment
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all: $(PROG)
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./$(PROG)
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# Rebuild the program
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$(PROG): $(SOURCES)
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$(CC) $(SOURCES) $(CFLAGS) $(PFLAGS) $(AFLAGS) -o $@
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# Generate a single, self-contained dashboard.html from the UI in web_root/
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dashboard.html: $(wildcard web_root/*)
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curl https://purge.jsdelivr.net/gh/cesanta/mongoose@master/resources/dashboard.js -s -o /dev/null
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monolith web_root/index.html > $@
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# Create an embedded filesystem containing compressed dashboard.html
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dashboard.html.c: dashboard.html
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node $(MGDIR)/resources/pack.js dashboard.html::gzip > $@
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@echo "On-flash size: `grep -oE '[0-9]+' $@ | wc -l`"
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# For development: rebuild and restart if any of the sources change
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run: $(SOURCES)
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watchexec -r -w server.c -w web_root -w ../../glue -e c,h,html,css,js -- make
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clean:
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rm -rf $(PROG) *.exe *.obj *.dSYM mongoose dashboard.*
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@@ -0,0 +1,49 @@
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// SPDX-FileCopyrightText: 2026 Cesanta Software Limited
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// SPDX-License-Identifier: GPL-2.0-only or commercial
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#include "mongoose.h"
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#if MG_ARCH == MG_ARCH_UNIX || MG_ARCH == MG_ARCH_WIN32
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#define HTTP_ADDR "http://0.0.0.0:8000"
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#else
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#define HTTP_ADDR "http://0.0.0.0:80"
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#endif
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static int s_threshold = 17;
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static char s_location[20] = "Galway";
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static void location_get(union mg_val *val) {
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val->s = mg_str(s_location);
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}
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static void location_set(const union mg_val *val) {
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mg_json_unescape(val->s, s_location, sizeof(s_location));
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}
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static void threshold_get(union mg_val *val) {
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val->i = s_threshold;
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}
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static void threshold_set(const union mg_val *val) {
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s_threshold = val->i;
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}
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// Modify this. This represents device's state to the dashboard
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static struct mg_field fields[] = {
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{"location", MG_VAL_STR, location_get, location_set},
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{"threshold", MG_VAL_INT, threshold_get, threshold_set},
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{0, 0, 0, 0},
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};
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void run_mongoose(void) {
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struct mg_mgr mgr;
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struct mg_dash dash = {fields};
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mg_mgr_init(&mgr);
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mg_http_listen(&mgr, HTTP_ADDR, mg_dash_ev_handler, &dash);
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for (;;) {
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mg_mgr_poll(&mgr, 10);
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}
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}
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int main(void) {
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run_mongoose();
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return 0;
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}
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@@ -0,0 +1,53 @@
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<!DOCTYPE html>
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<html>
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<head>
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<!-- Mongoose device dashboard -->
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<script src="https://cdn.jsdelivr.net/gh/cesanta/mongoose@master/resources/dashboard.js"></script>
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<script>
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Dashboard.init({
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debug: true,
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data: {
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location: 'Dublin',
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threshold: 42,
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firmware_version: '1.0.0',
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},
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});
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</script>
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<link rel="stylesheet" href="style.css" />
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</head>
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<body>
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<div class="main">
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<h1>
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Settings panel example
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</h1>
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<div class="panel" style="margin: 1rem 0;">
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<div class="panel-title">Settings panel</div>
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<div class="panel-row">
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<span>Location:</span>
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<input class="input" data-bind='location' data-autosave="1" />
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</div>
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<div class="panel-row">
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<span>Noise threshold:</span>
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<input class="input" data-bind="threshold" />
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</div>
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<div class="panel-row" style="justify-content: end;">
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<button class="button" data-cancel="loc.*|threshold">cancel</button>
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<button class="button" data-save="loc.*|threshold">save</button>
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</div>
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</div>
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<div style="font-size:80%;color: #000000a0">
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When a field is edited, a local copy is created. For as long as that
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copy is different from the device's value, the field is added an
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"edited" CSS class. Bad values (e.g. non-numeric value for the field
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that is bound to a numeric data) give a "error" CSS class.
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<p style="margin-top: .5rem;">The Location field has autosave flag set, so it is saved automatically
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as the user type text<//>
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</div>
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</div>
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</body>
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</html>
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@@ -0,0 +1,108 @@
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:root {
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--btn-color: white;
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--btn-disabled-color: #d1d5db;
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--bg-color: '#d8dcdf';
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}
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*, *::before, *::after {
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box-sizing: border-box; margin: 0; padding: 0;
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font-family: Arial, sans-serif;
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}
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body { background: #0004;}
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h1 {font-size: 1.25rem;}
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.main {
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margin: 2rem auto; width: 380px; padding: 1em 2em;
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border-radius:0.3rem; background: #fff5;
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}
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.panel {
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display: flex; flex-direction: column; gap: 0.5rem;
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background: #fffe;
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border: 1px solid #0002;
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border-radius: 0.3rem;
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overflow: hidden;
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padding: 0.5rem 0.75rem;
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font-size: 0.875rem;
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}
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.panel-title {
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margin: -0.5rem -0.75rem 0 -0.75rem;
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padding: 0.5rem 0.75rem 0.3rem 0.75rem;
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border-bottom: 1px solid #0003;
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border-radius: 0.25rem 0.25rem 0 0;
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background: #0001;
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font-weight: 600;
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color: #000c;
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}
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.input, .dropdown {
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display:inline-flex;
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border-radius: 5px;
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background: #fff;
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color: #475569;
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border: 1px solid #ccc;
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border-width: 1px;
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outline: none;
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box-sizing: border-box;
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text-overflow: ellipsis;
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white-space: nowrap;
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overflow: hidden;
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margin:0;
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font-size: 14px;
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font-weight: normal;
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transition: all .2s ease;
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}
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.button {
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padding: 0.25rem 1rem;
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border: 1px solid transparent;
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border-radius: 4px;
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background: #2563eb;
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color: var(--btn-color);
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font-weight: 600;
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cursor: pointer;
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position: relative;
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transition: all .2s ease;
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}
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.button:hover {
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background: #3b82f6;
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}
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.button.loading {
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color: transparent;
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text-shadow: none;
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}
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.button:disabled,.button:hover:disabled,.button.disabled,.button:hover.disabled {
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background: var(--btn-disabled-color) !important;
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border-color: var(--btn-disabled-color);
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cursor: not-allowed;
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}
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.input {
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padding: 0.25rem 0.5rem;
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}
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.panel-row {
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display:flex;
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align-items:center;
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justify-content:space-between;
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gap: 0.5rem;
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}
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.input:disabled,.select:disabled,.input.disabled,.select.disabled,.slider.disabled {
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background: var(--bg-color) !important;
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cursor: not-allowed;
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}
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.input.edited, .select.edited, .slider.edited>* {
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border-color: #50500040;
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background: #ffff0020;
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}
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.input.error, .select.error, .slider.error>* {
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border-color: #50000040;
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background: #ff000020;
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}
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