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/**
* Copyright (c) 2016 Weitian LI <liweitianux@live.com>
* MIT license
*
* JavaScript codes for the Web UI of "fg21sim"
*/
"use strict";
/**
* jQuery settings
*/
jQuery.ajaxSetup({
error: function (error) {
console.error("AJAX request failed: code:", error.status,
", reason:", error.statusText); }
});
/**
* Common functions that will be used by other scripts
*/
/**
* Get the value of a key stored in the cookie
*
* @param {String} name - Name of the key
*
* @return {String} - The value of the key; `undefined` if the key not exists
*
* Credit:
* http://www.tornadoweb.org/en/stable/guide/security.html
*/
var getCookie = function (name) {
var m = document.cookie.match("\\b" + name + "=([^;]*)\\b");
return m ? m[1] : undefined;
};
/**
* jQuery extension for easier AJAX JSON post
*
* NOTE: The XSRF token is extracted from the cookie and posted together.
*
* @param {String} url - The URL that handles the AJAX requests
* @param {Object} data - Data of key-value pairs to be posted
* @param {Function} callback - Function to be called when AJAX succeeded
*/
jQuery.postJSON = function (url, data, callback) {
return jQuery.ajax({
url: url,
type: "POST",
contentType: "application/json; charset=utf-8",
// Tornado: `check_xsrf_cookie()`
// Credit: https://stackoverflow.com/a/28924601/4856091
headers: {"X-XSRFToken": getCookie("_xsrf")},
data: JSON.stringify(data),
success: function (response) {
if (callback) {
callback(response);
}
}
});
};
/**
* Scroll the page to adjust for the fixed navigation banner
*/
var scrollTarget = function (height) {
if ($(":target").length) {
var offset = $(":target").offset();
var scroll_to = offset.top - height * 1.2;
$("html, body").animate({scrollTop: scroll_to}, 100);
}
};
/**
* Toggle the display of the target block
*/
var toggleBlock = function (toggle, targetBlock) {
if (targetBlock.is(":visible")) {
targetBlock.slideUp("fast");
toggle.removeClass("fa-chevron-circle-up")
.addClass("fa-chevron-circle-down")
.attr("title", "Expand contents");
} else {
targetBlock.slideDown("fast");
toggle.removeClass("fa-chevron-circle-down")
.addClass("fa-chevron-circle-up")
.attr("title", "Collapse contents");
}
};
/**
* Compose the notification contents and shown them in the modal box.
*
* The input `modalBox` may be a jQuery object or a jQuery selector of the
* target modal box.
*
* The input `data` may have the following attributes:
* - `icon` : FontAwesome icon (specified without the beginning `fa-`)
* - `message` : Main summary message
* - `code` : Error code if it is an error notification
* - `reason` : Reason of the error
* - `buttons` : A list of buttons, which have these attributes:
* + `text` : Button name
* + `class` : {String} Button classes
* + `click` : {Function} Function called on click.
* To close the modal, use `$.modal.close()`
*/
var showModal = function (modalBox, data) {
modalBox = $(modalBox);
// Empty previous contents
modalBox.html("");
var p = $("<p>");
if (data.icon) {
$("<span>").addClass("fa fa-2x").addClass("fa-" + data.icon).appendTo(p);
}
if (data.message) {
$("<span>").text(" " + data.message).appendTo(p);
}
modalBox.append(p);
if (data.code) {
modalBox.append($("<p>Error Code: </p>")
.append($("<span>")
.addClass("label label-warning")
.text(data.code)));
}
if (data.reason) {
modalBox.append($("<p>Reason: </p>")
.append($("<span>")
.addClass("label label-warning")
.text(data.reason)));
}
if (data.buttons) {
p = $("<p>").addClass("button-group");
data.buttons.forEach(function (btn) {
$("<button>").text(btn.text).addClass(btn["class"])
.attr("type", "button")
.on("click", btn.click).appendTo(p);
});
modalBox.append(p);
}
// Show the modal box
modalBox.modal();
};
$(document).ready(function () {
// Scroll the page to adjust for the fixed navigation banner
$(window).on("hashchange", function () {
var nav_height = $("nav.navigation").outerHeight();
scrollTarget(nav_height);
});
// Toggle section contents/body
$(".heading > .toggle").on("click", function () {
var toggle = $(this);
var body = toggle.closest(".heading").next(".body");
toggleBlock(toggle, body);
});
// Panel toggle control
$(".panel-title > .toggle").on("click", function () {
var toggle = $(this);
var body = toggle.closest(".panel").find(".panel-body");
toggleBlock(toggle, body);
});
});
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