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Display user names in 2D window

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This commit is contained in:
David Rowe 2015-03-09 22:29:24 -07:00
parent d25d3bc6ab
commit 63d8da0233
1 changed files with 98 additions and 5 deletions
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103
examples/users.js
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@ -11,13 +11,77 @@
var usersWindow = (function () {
var API_URL = "https://metaverse.highfidelity.io/api/v1/users?status=online",
var WINDOW_BOUNDS_2D = { x: 100, y: 100, width: 300, height: 200 },
WINDOW_MARGIN_2D = 12,
WINDOW_FOREGROUND_COLOR_2D = { red: 240, green: 240, blue: 240 },
WINDOW_FOREGROUND_ALPHA_2D = 0.9,
WINDOW_BACKGROUND_COLOR_2D = { red: 120, green: 120, blue: 120 },
WINDOW_BACKGROUND_ALPHA_2D = 0.7,
usersPane2D,
USERS_PANE_TEXT_WIDTH_2D = WINDOW_BOUNDS_2D.width - 2 * WINDOW_MARGIN_2D,
USERS_FONT_2D = { size: 14 },
USERNAME_SPACER = "\u00a0\u00a0\u00a0\u00a0", // Nonbreaking spaces
usernameSpacerWidth2D,
usersOnline,
usersInLines = [], // 2D array of lines of users
API_URL = "https://metaverse.highfidelity.io/api/v1/users?status=online",
HTTP_GET_TIMEOUT = 60000, // ms = 1 minute
usersRequest,
processUsers,
usersTimedOut,
usersTimer,
UPDATE_TIMEOUT = 1000; // ms = 1s
UPDATE_TIMEOUT = 5000; // ms = 5s
function updateWindow() {
var displayText = "",
numUsersDisplayed = 0,
lineText = "",
lineWidth = 0,
myUsername = GlobalServices.myUsername,
usernameWidth,
user,
i;
usersInLines = [];
for (i = 0; i < usersOnline.length; i += 1) {
user = usersOnline[i];
if (user.username !== myUsername && user.online) {
usernameWidth = Overlays.textSize(usersPane2D, user.username).width;
if (usersInLines.length === 0 || lineWidth + usernameSpacerWidth2D + usernameWidth > USERS_PANE_TEXT_WIDTH_2D) {
displayText += "\n" + lineText;
// New line
usersInLines.push([i]); // New array in new line or userLines array
usersOnline[i].leftX = 0; // Augment usersOnline data
usersOnline[i].rightX = usernameWidth;
lineText = user.username;
lineWidth = usernameWidth;
} else {
// Append
usersInLines[usersInLines.length - 1].push(i);
usersOnline[i].leftX = lineWidth + usernameSpacerWidth2D;
usersOnline[i].rightX = lineWidth + usernameSpacerWidth2D + usernameWidth;
lineText += USERNAME_SPACER + user.username;
lineWidth = usersOnline[i].rightX;
}
numUsersDisplayed += 1;
}
}
displayText += "\n" + lineText;
displayText = displayText.slice(2); // Remove leading "\n"s.
Overlays.editOverlay(usersPane2D, { text: numUsersDisplayed > 0 ? displayText : "No users online" });
}
function requestUsers() {
usersRequest = new XMLHttpRequest();
@ -29,14 +93,29 @@ var usersWindow = (function () {
}
processUsers = function () {
var response;
if (usersRequest.readyState === usersRequest.DONE) {
if (usersRequest.status === 200) {
// TODO: Process users data
response = JSON.parse(usersRequest.responseText);
if (response.status !== "success") {
print("Error: Request for users status returned status = " + response.status);
usersTimer = Script.setTimeout(requestUsers, HTTP_GET_TIMEOUT); // Try again after a longer delay.
return;
}
if (!response.hasOwnProperty("data") || !response.data.hasOwnProperty("users")) {
print("Error: Request for users status returned invalid data");
usersTimer = Script.setTimeout(requestUsers, HTTP_GET_TIMEOUT); // Try again after a longer delay.
return;
}
usersOnline = response.data.users;
updateWindow();
} else {
print("Error: Request for users status returned " + usersRequest.status + " " + usersRequest.statusText);
}
usersTimer = Script.setTimeout(requestUsers, UPDATE_TIMEOUT); // Update while after finished processing.
usersTimer = Script.setTimeout(requestUsers, UPDATE_TIMEOUT); // Update after finished processing.
}
};
@ -46,13 +125,27 @@ var usersWindow = (function () {
};
function setUp() {
usersPane2D = Overlays.addOverlay("text", {
bounds: WINDOW_BOUNDS_2D,
topMargin: WINDOW_MARGIN_2D,
leftMargin: WINDOW_MARGIN_2D,
color: WINDOW_FOREGROUND_COLOR_2D,
alpha: WINDOW_FOREGROUND_ALPHA_2D,
backgroundColor: WINDOW_BACKGROUND_COLOR_2D,
backgroundAlpha: WINDOW_BACKGROUND_ALPHA_2D,
text: "",
font: USERS_FONT_2D,
visible: true
});
usernameSpacerWidth2D = Overlays.textSize(usersPane2D, USERNAME_SPACER).width;
requestUsers();
}
function tearDown() {
Script.clearTimeout(usersTimer);
Overlays.deleteOverlay(usersPane2D);
}
setUp();