gpio ui

web/share/js/kvm/gpio.js

@@ -0,0 +1,163 @@
+/*****************************************************************************
+#                                                                            #
+#    KVMD - The main Pi-KVM daemon.                                          #
+#                                                                            #
+#    Copyright (C) 2018  Maxim Devaev <mdevaev@gmail.com>                    #
+#                                                                            #
+#    This program is free software: you can redistribute it and/or modify    #
+#    it under the terms of the GNU General Public License as published by    #
+#    the Free Software Foundation, either version 3 of the License, or       #
+#    (at your option) any later version.                                     #
+#                                                                            #
+#    This program is distributed in the hope that it will be useful,         #
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of          #
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the           #
+#    GNU General Public License for more details.                            #
+#                                                                            #
+#    You should have received a copy of the GNU General Public License       #
+#    along with this program.  If not, see <https://www.gnu.org/licenses/>.  #
+#                                                                            #
+*****************************************************************************/
+
+
+"use strict";
+
+
+import {tools, $, $$$} from "../tools.js";
+import {wm} from "../wm.js";
+
+
+export function Gpio() {
+	var self = this;
+
+	/************************************************************************/
+
+	var __state = null;
+
+	/************************************************************************/
+
+	self.setState = function(state) {
+		if (state) {
+			for (let channel in state.inputs) {
+				let el = $(`gpio-led-${channel}`);
+				if (el) {
+					__setLedState(el, state.inputs[channel].state);
+				}
+			}
+			for (let channel in state.outputs) {
+				for (let type of ["switch", "button"]) {
+					let el = $(`gpio-${type}-${channel}`);
+					if (el) {
+						wm.switchEnabled(el, !state.outputs[channel].busy);
+					}
+				}
+			}
+		} else {
+			for (let el of $$$(".gpio-led")) {
+				__setLedState(el, false);
+			}
+			for (let selector of [".gpio-switch", ".gpio-button"]) {
+				for (let el of $$$(selector)) {
+					wm.switchEnabled(el, false);
+				}
+			}
+		}
+		__state = state;
+	};
+
+	self.setModel = function(model) {
+		tools.featureSetEnabled($("gpio-dropdown"), model.view.table.length);
+		if (model.view.table.length) {
+			$("gpio-menu-button").innerHTML = `${model.view.header.title} &#8628;`;
+		}
+
+		let switches = [];
+		let buttons = [];
+		let content = "<table class=\"kv\">";
+		for (let row of model.view.table) {
+			if (row === null) {
+				content += "</table><hr><table class=\"kv\">";
+			} else {
+				content += "<tr>";
+				for (let item of row) {
+					if (item.type === "output") {
+						item.scheme = model.scheme.outputs[item.channel];
+					}
+					content += `<td>${__createItem(item, switches, buttons)}</td>`;
+				}
+				content += "</tr>";
+			}
+		}
+		content += "</table>";
+		$("gpio-menu").innerHTML = content;
+
+		for (let channel of switches) {
+			tools.setOnClick($(`gpio-switch-${channel}`), () => __switchChannel(channel));
+		}
+		for (let channel of buttons) {
+			tools.setOnClick($(`gpio-button-${channel}`), () => __pulseChannel(channel));
+		}
+
+		self.setState(__state);
+	};
+
+	var __createItem = function(item, switches, buttons) {
+		if (item.type === "label") {
+			return item.text;
+		} else if (item.type === "input") {
+			return `<img id="gpio-led-${item.channel}" class="gpio-led inline-lamp-big led-gray" src="/share/svg/led-square.svg" />`;
+		} else if (item.type === "output") {
+			let controls = [];
+			if (item.scheme["switch"]) {
+				switches.push(item.channel);
+				controls.push(`
+					<td><div class="switch-box">
+						<input disabled type="checkbox" id="gpio-switch-${item.channel}" class="gpio-switch" />
+						<label for="gpio-switch-${item.channel}">
+							<span class="switch-inner"></span>
+							<span class="switch"></span>
+						</label>
+					</div></td>
+				`);
+			}
+			if (item.scheme.pulse.delay) {
+				buttons.push(item.channel);
+				controls.push(`<td><button disabled id="gpio-button-${item.channel}" class="gpio-button">${item.text}</button></td>`);
+			}
+			return `<table><tr>${controls.join("<td>&nbsp;&nbsp;&nbsp;</td>")}</tr></table>`;
+		} else {
+			return "";
+		}
+	};
+
+	var __setLedState = function(el, state) {
+		if (state) {
+			el.classList.add("led-green");
+			el.classList.remove("led-gray");
+		} else {
+			el.classList.add("led-gray");
+			el.classList.remove("led-green");
+		}
+	};
+
+	var __switchChannel = function(channel) {
+		let to = ($(`gpio-switch-${channel}`).checked ? "1" : "0");
+		__sendPost(`/api/gpio/switch?channel=${channel}&state=${to}`);
+	};
+
+	var __pulseChannel = function(channel) {
+		__sendPost(`/api/gpio/pulse?channel=${channel}`);
+	};
+
+	var __sendPost = function(url) {
+		let http = tools.makeRequest("POST", url, function() {
+			if (http.readyState === 4) {
+				if (http.status === 409) {
+					wm.error("Performing another operation for this GPIO channel.<br>Please try again later");
+				} else if (http.status !== 200) {
+					wm.error("GPIO error:<br>", http.responseText);
+				}
+			}
+		});
+	};
+}

web/share/js/kvm/session.js

@@ -31,6 +31,7 @@ import {Atx} from "./atx.js";
 import {Msd} from "./msd.js";
 import {Streamer} from "./stream.js";
 import {WakeOnLan} from "./wol.js";
+import {Gpio} from "./gpio.js";
 
 
 export function Session() {
@@ -48,6 +49,7 @@ export function Session() {
 	var __msd = new Msd();
 	var __streamer = new Streamer();
 	var __wol = new WakeOnLan();
+	var __gpio = new Gpio();
 
 	var __init__ = function() {
 		__startSession();
@@ -211,6 +213,8 @@ export function Session() {
 			case "info_hw_state": __setAboutInfoHw(data.event); break;
 			case "info_system_state": __setAboutInfoSystem(data.event); break;
 			case "wol_state": __wol.setState(data.event); break;
+			case "gpio_model_state": __gpio.setModel(data.event); break;
+			case "gpio_state": __gpio.setState(data.event); break;
 			case "hid_state": __hid.setState(data.event); break;
 			case "atx_state": __atx.setState(data.event); break;
 			case "msd_state": __msd.setState(data.event); break;
@@ -237,6 +241,7 @@ export function Session() {
 			__ping_timer = null;
 		}
 
+		__gpio.setState(null);
 		__hid.setSocket(null);
 		__atx.setState(null);
 		__msd.setState(null);