diff options
Diffstat (limited to '')
| -rw-r--r-- | static/main.js | 200 |
1 files changed, 101 insertions, 99 deletions
diff --git a/static/main.js b/static/main.js index 3fc1cb0..a593c92 100644 --- a/static/main.js +++ b/static/main.js @@ -16,118 +16,120 @@ * along with this program. If not, see <https://www.gnu.org/licenses/>. */ -const socket = new WebSocket("ws://localhost:5555/ws") -socket.addEventListener("open", function() { - var _handleMessage = event => { - let msg = new String(event?.data) +document.addEventListener("DOMContentLoaded", () => { + const socket = new WebSocket("ws://localhost:5555/ws") + socket.addEventListener("open", function() { + var _handleMessage = event => { + let msg = new String(event?.data) - /* - * Standard IRC Message format parsing without IRCv3 tags or prefixes. - * It's a simple enough protocol format suitable for our use-case. - * No need for protobuf or anything else nontrivial. - */ - let mar = msg.split(" ") - for (let i = 0; i < mar.length; i++) { - if (mar[i].startsWith(":")) { - if (i === mar.length - 1) { - mar[i] = mar[i].substring(1) + /* + * Standard IRC Message format parsing without IRCv3 tags or prefixes. + * It's a simple enough protocol format suitable for our use-case. + * No need for protobuf or anything else nontrivial. + */ + let mar = msg.split(" ") + for (let i = 0; i < mar.length; i++) { + if (mar[i].startsWith(":")) { + if (i === mar.length - 1) { + mar[i] = mar[i].substring(1) + break + } + mar[i] = mar[i].substring(1) + " " + mar.slice(i + 1).join(" ") + mar.splice(i + 1) break } - mar[i] = mar[i].substring(1) + " " + mar.slice(i + 1).join(" ") - mar.splice(i + 1) + } + + switch (mar[0]) { + case "E": /* unexpected error */ + alert(`The server reported an unexpected error, "${ mar[1] }". The system might be in an inconsistent state.`) + break + case "HI": + document.querySelectorAll(".need-connection").forEach(c => { + c.style.display = "block" + }) + document.querySelectorAll(".before-connection").forEach(c => { + c.style.display = "none" + }) + let courseIDs = mar[1].split(",") + for (let i = 0; i < courseIDs.length; i++) { + document.getElementById(`tick${ courseIDs[i] }`).checked = true + } + break + case "U": /* unauthenticated */ + /* TODO: replace this with a box on screen */ + alert("Your session is broken or has expired. You are unauthenticated and the server will reject your commands.") + break + case "N": + document.getElementById(`selected${ mar[1] }`).textContent = mar[2] + if (mar[2] === document.getElementById(`max${ mar[1] }`).textContent && !(document.getElementById(`tick${ mar[1] }`).checked)) { + document.getElementById(`tick${ mar[1] }`).disabled = true + } else { + document.getElementById(`tick${ mar[1] }`).disabled = false + } + break + case "R": /* course selection rejected */ + document.getElementById(`coursestatus${ mar[1] }`).textContent = mar[2] + document.getElementById(`coursestatus${ mar[1] }`).style.color = "red" + document.getElementById(`tick${ mar[1] }`).checked = false + document.getElementById(`tick${ mar[1] }`).indeterminate = false + if (mar[2] === "Full") { + document.getElementById(`tick${ mar[1] }`).disabled = true + } break + case "Y": /* course selection approved */ + document.getElementById(`coursestatus${ mar[1] }`).textContent = "" + document.getElementById(`coursestatus${ mar[1] }`).style.removeProperty("color") + document.getElementById(`tick${ mar[1] }`).checked = true + document.getElementById(`tick${ mar[1] }`).indeterminate = false + break + default: + alert(`Invalid command ${ mar[0] } received from socket. Something is wrong.`) } } - - switch (mar[0]) { - case "E": /* unexpected error */ - alert(`The server reported an unexpected error, "${ mar[1] }". The system might be in an inconsistent state.`) - break - case "HI": + socket.addEventListener("message", _handleMessage) + var _handleClose = _event => { document.querySelectorAll(".need-connection").forEach(c => { - c.style.display = "block" - }) - document.querySelectorAll(".before-connection").forEach(c => { c.style.display = "none" }) - let courseIDs = mar[1].split(",") - for (let i = 0; i < courseIDs.length; i++) { - document.getElementById(`tick${ courseIDs[i] }`).checked = true - } - break - case "U": /* unauthenticated */ - /* TODO: replace this with a box on screen */ - alert("Your session is broken or has expired. You are unauthenticated and the server will reject your commands.") - break - case "N": - document.getElementById(`selected${ mar[1] }`).textContent = mar[2] - if (mar[2] === document.getElementById(`max${ mar[1] }`).textContent && !(document.getElementById(`tick${ mar[1] }`).checked)) { - document.getElementById(`tick${ mar[1] }`).disabled = true - } else { - document.getElementById(`tick${ mar[1] }`).disabled = false - } - break - case "R": /* course selection rejected */ - document.getElementById(`coursestatus${ mar[1] }`).textContent = mar[2] - document.getElementById(`coursestatus${ mar[1] }`).style.color = "red" - document.getElementById(`tick${ mar[1] }`).checked = false - document.getElementById(`tick${ mar[1] }`).indeterminate = false - if (mar[2] === "Full") { - document.getElementById(`tick${ mar[1] }`).disabled = true - } - break - case "Y": /* course selection approved */ - document.getElementById(`coursestatus${ mar[1] }`).textContent = "" - document.getElementById(`coursestatus${ mar[1] }`).style.removeProperty("color") - document.getElementById(`tick${ mar[1] }`).checked = true - document.getElementById(`tick${ mar[1] }`).indeterminate = false - break - default: - alert(`Invalid command ${ mar[0] } received from socket. Something is wrong.`) + document.querySelectorAll(".broken-connection").forEach(c => { + c.style.display = "block" + }) } - } - socket.addEventListener("message", _handleMessage) - var _handleClose = _event => { - document.querySelectorAll(".need-connection").forEach(c => { - c.style.display = "none" - }) - document.querySelectorAll(".broken-connection").forEach(c => { - c.style.display = "block" - }) - } - socket.addEventListener("close", _handleClose) - socket.send("HELLO") -}) + socket.addEventListener("close", _handleClose) + socket.send("HELLO") + }) -document.querySelectorAll(".coursecheckbox").forEach(c => { - c.addEventListener("input", () => { - if (c.id.slice(0, 4) !== "tick") { - alert(`${ c.id } is not in the correct format.`) + document.querySelectorAll(".coursecheckbox").forEach(c => { + c.addEventListener("input", () => { + if (c.id.slice(0, 4) !== "tick") { + alert(`${ c.id } is not in the correct format.`) + return false + } + switch (c.checked) { + case true: + c.indeterminate = true + socket.send(`Y ${ c.id.slice(4) }`) + break + case false: + c.indeterminate = false + socket.send(`N ${ c.id.slice(4) }`) + break + default: + alert(`${ c.id }'s "checked" attribute is ${ c.checked } which is invalid.`) + } return false - } - switch (c.checked) { - case true: - c.indeterminate = true - socket.send(`Y ${ c.id.slice(4) }`) - break - case false: - c.indeterminate = false - socket.send(`N ${ c.id.slice(4) }`) - break - default: - alert(`${ c.id }'s "checked" attribute is ${ c.checked } which is invalid.`) - } - return false + }) }) -}) -document.getElementById("confirmbutton").addEventListener("click", () => { - socket.send("C") -}) + document.getElementById("confirmbutton").addEventListener("click", () => { + socket.send("C") + }) -document.querySelectorAll(".script-required").forEach(c => { - c.style.display = "block" -}) -document.querySelectorAll(".script-unavailable").forEach(c => { - c.style.display = "none" + document.querySelectorAll(".script-required").forEach(c => { + c.style.display = "block" + }) + document.querySelectorAll(".script-unavailable").forEach(c => { + c.style.display = "none" + }) }) |