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node-red/editor/js/ui/notifications.js

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/**
* Copyright JS Foundation and other contributors, http://js.foundation
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*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
**/
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RED.notifications = (function() {
/*
// Example usage for a modal dialog with buttons
var myNotification = RED.notify("This is the message to display",{
modal: true,
fixed: true,
type: 'warning',
buttons: [
{
text: "cancel",
click: function(e) {
myNotification.close();
}
},
{
text: "okay",
class:"primary",
click: function(e) {
myNotification.close();
}
}
]
});
*/
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var persistentNotifications = {};
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var currentNotifications = [];
var c = 0;
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function notify(msg,type,fixed,timeout) {
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var options = {};
if (type !== null && typeof type === 'object') {
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options = type;
fixed = options.fixed;
timeout = options.timeout;
type = options.type;
}
if (options.modal) {
$("#full-shade").show();
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}
if (currentNotifications.length > 4) {
var ll = currentNotifications.length;
for (var i = 0;ll > 4 && i<currentNotifications.length;i+=1) {
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var notifiction = currentNotifications[i];
if (!notifiction.fixed) {
window.clearTimeout(notifiction.timeoutid);
notifiction.close();
ll -= 1;
}
}
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}
var n = document.createElement("div");
n.id="red-notification-"+c;
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n.className = "notification";
n.fixed = fixed;
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if (type) {
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n.className = "notification notification-"+type;
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}
if (options.width) {
var parentWidth = $("#notifications").width();
if (options.width > parentWidth) {
var margin = -(options.width-parentWidth)/2;
$(n).css({
width: options.width+"px",
marginLeft: margin+"px"
})
}
}
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n.style.display = "none";
if (typeof msg === "string") {
if (!/<p>/i.test(msg)) {
msg = "<p>"+msg+"</p>";
}
n.innerHTML = msg;
} else {
$(n).append(msg);
}
if (options.buttons) {
var buttonSet = $('<div style="margin-top: 20px;" class="ui-dialog-buttonset"></div>').appendTo(n)
options.buttons.forEach(function(buttonDef) {
var b = $('<button>').text(buttonDef.text).click(buttonDef.click).appendTo(buttonSet);
if (buttonDef.id) {
b.attr('id',buttonDef.id);
}
if (buttonDef.class) {
b.addClass(buttonDef.class);
}
})
}
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$("#notifications").append(n);
$(n).slideDown(300);
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n.close = (function() {
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var nn = n;
return function() {
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if (nn.closed) {
return;
}
nn.closed = true;
currentNotifications.splice(currentNotifications.indexOf(nn),1);
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if (options.id) {
delete persistentNotifications[options.id];
if (Object.keys(persistentNotifications).length === 0) {
notificationButtonWrapper.hide();
}
}
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$(nn).slideUp(300, function() {
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nn.parentNode.removeChild(nn);
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});
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if (options.modal) {
$("#full-shade").hide();
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}
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};
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})();
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n.hideNotification = (function() {
var nn = n;
return function() {
if (nn.closed) {
return
}
nn.hidden = true;
$(nn).slideUp(300);
}
})();
n.showNotification = (function() {
var nn = n;
return function() {
if (nn.closed || !nn.hidden) {
return
}
nn.hidden = false;
$(nn).slideDown(300);
}
})();
n.update = (function() {
var nn = n;
return function(msg,options) {
if (typeof msg === "string") {
if (!/<p>/i.test(msg)) {
msg = "<p>"+msg+"</p>";
}
nn.innerHTML = msg;
} else {
$(nn).empty().append(msg);
}
var timeout;
if (typeof options === 'number') {
timeout = options;
} else if (options !== undefined) {
timeout = options.timeout;
if (options.buttons) {
var buttonSet = $('<div style="margin-top: 20px;" class="ui-dialog-buttonset"></div>').appendTo(nn)
options.buttons.forEach(function(buttonDef) {
var b = $('<button>').text(buttonDef.text).click(buttonDef.click).appendTo(buttonSet);
if (buttonDef.id) {
b.attr('id',buttonDef.id);
}
if (buttonDef.class) {
b.addClass(buttonDef.class);
}
})
}
}
if (timeout !== undefined && timeout > 0) {
window.clearTimeout(nn.timeoutid);
nn.timeoutid = window.setTimeout(nn.close,timeout);
} else {
window.clearTimeout(nn.timeoutid);
}
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if (nn.hidden) {
nn.showNotification();
}
}
})();
if (!fixed) {
$(n).click((function() {
var nn = n;
return function() {
nn.close();
window.clearTimeout(nn.timeoutid);
};
})());
n.timeoutid = window.setTimeout(n.close,timeout||5000);
}
currentNotifications.push(n);
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if (options.id) {
persistentNotifications[options.id] = n;
notificationButtonWrapper.show();
}
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c+=1;
return n;
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}
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RED.notify = notify;
function hidePersistent() {
for(var i in persistentNotifications) {
if (persistentNotifications.hasOwnProperty(i)) {
persistentNotifications[i].hideNotification();
}
}
}
function showPersistent() {
for(var i in persistentNotifications) {
if (persistentNotifications.hasOwnProperty(i)) {
persistentNotifications[i].showNotification();
}
}
}
var notificationButtonWrapper;
return {
init: function() {
notificationButtonWrapper = $('<li>'+
'<a id="btn-notifications" class="button" href="#">'+
'<i class="fa fa-warning"></i>'+
'</a>'+
'</li>').prependTo(".header-toolbar").hide();
$('#btn-notifications').click(function() {
showPersistent();
})
},
notify: notify
}
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})();