I had built a web shh tool based on Xtermjs and Websocket.
Everything looks fine, except characters overlapping in vi like this:
My code of xterm to open a terminal:
function openTerminal() {
var client = new WSSHClient();
var term = new Terminal({cols: 70, rows: 30, screenKeys: true, useStyle: true});
term.on('data', function (data) {
client.sendClientData(data);
});
term.open();
$('.terminal').detach().appendTo('#term');
$("#term").show();
term.write('Connecting...\r\n');
client.connect({
onError: function (error) {
term.write('Error: ' + error + '\r\n');
console.debug('error happened');
},
onConnect: function () {
console.debug('connection established');
},
onClose: function () {
term.write("\rconnection closed")
console.debug('connection reset by peer');
$('term').hide()
},
onData: function (data) {
term.write(data);
console.debug('get data:' + data);
}
})
}
Related
I'm trying to use the Jodit editor and wish to use the image uploading capabilities to specify a folder and path of where to upload it to using a PHP script.
I'm trying to put in some console.log statements to check my values, but when I select an image, I receive this error in the console which I don't know how to fix.
The code I've used in the page is:
<script>
var editor = new Jodit('#editor_Jodit',{
enableDragAndDropFileToEditor: true,
uploader: {
url: 'connector/upload.php',
format: 'json',
pathVariableName: 'path',
filesVariableName: 'images',
prepareData: function (data) {
return data;
},
isSuccess: function (resp) {
return !resp.error;
},
getMsg: function (resp) {
return resp.msg.join !== undefined ? resp.msg.join(' ') : resp.msg;
},
process: function (resp) {
return {
files: resp[this.options.uploader.filesVariableName] || [],
path: resp.path,
baseurl: resp.baseurl,
error: resp.error,
msg: resp.msg
};
},
error: function (e) {
this.events.fire('errorPopap', [e.getMessage(), 'error', 4000]);
},
defaultHandlerSuccess: function (data, resp) {
var i, field = this.options.uploader.filesVariableName;
if (data[field] && data[field].length) {
for (i = 0; i < data[field].length; i += 1) {
this.selection.insertImage(data.baseurl + data[field][i]);
}
}
},
defaultHandlerError: function (resp) {
this.events.fire('errorPopap', [this.options.uploader.getMsg(resp)]);
}
}
});
editor.value = '<p>start</p>';
</script>
Try to remove the following line:
filesVariableName: 'images'
Replace with a function
filesVariableName: function (r) {
return 'images'
},
I am a beginner with Javascript with a bit of knowledge of VueJs. I have an array called tickets. I also have a data api returning two different data objects (tickets and user profiles).
The tickets have user ids and the user profiles has the ids with names.
I needed to create a method that looks at both of that data, loops through it, and assigns the full name of the user to the view.
I was having an issue where my tickets object were not finished loading and it was sometimes causing an error like firstname is undefined. So, i thought I'd try and write an async/await approach to wait until the tickets have fully loaded.
Although my code works, it just doesn't "feel right" and I am not sure how reliable it will be once the application gets larger.
Can I get another set of eyes as to confirmation that my current approach is OK? Thanks!
data() {
return {
isBusy: true,
tickets: [],
userProfiles: [],
}
},
created() {
this.getUserProfiles()
this.getTickets()
},
methods: {
getUserProfiles: function() {
ApiService.getUserProfiles().then(response => {
this.userProfiles = response.data
})
},
getTickets() {
ApiService.getTickets().then(response => {
this.tickets = response.data
this.assignNames(this.tickets)
this.isBusy = false
})
},
// lets wait until the issues are loaded before showing names;
async assignNames() {
let tickets = await this.tickets
var i
for (i = 0; i < this.tickets.length; i++) {
if (tickets[i].assigned_to !== null) {
const result = this.userProfiles.filter(profile => {
return profile.uid == tickets[i].assigned_to
})
tickets[i].assigned_to = result[0].firstname + ' ' + result[0].lastname
}
}
}
}
}
</script>
There are several ways you could do this. Here is the one I prefer without async/await:
created() {
this.load();
},
methods: {
getUserProfiles: function() {
return ApiService.getUserProfiles().then(response => {
this.userProfiles = response.data
})
},
getTickets() {
return ApiService.getTickets().then(response => {
this.tickets = response.data
})
},
load() {
Promise.all([
this.getUserProfiles(),
this.getTickets()
]).then(data => {
this.assignNames();
this.isBusy = false;
});
},
assignNames(){
const tickets = this.tickets;
for (let i = 0; i < this.tickets.length; i++) {
if (tickets[i].assigned_to !== null) {
const result = this.userProfiles.filter(profile => {
return profile.uid == tickets[i].assigned_to
})
tickets[i].assigned_to = result[0].firstname + ' ' + result[0].lastname
}
}
}
}
I have a table that shows a pop-up when the first cell is clicked like this:
$('#tblAllUsers tbody').on('click', 'td', function () {
var visIdx = $(this).index();
if (visIdx != 0) {
return false;
}
var par = this.parentNode.parentNode.id;
var oTable = $("#tblAllUsers").dataTable();
var rowIndex = $(this).closest('tr').index();
var aPos = oTable.fnGetPosition(this);
var aData = oTable.fnGetData(aPos[0]);
var name = aData[1];
if (name != '') {
GetUser(name, rowIndex, "#tblAllUsers");
}
else {
ErrorDialog("#MessageDialog", "#lblError", "The User ID is blank in that row.", "No User ID");
return false;
}
});
The pop-up allows the user to modify fields and save it, close the dialog and then return to the grid. If the dialog is canceled, data not saved, the scroll is maintained. But if the data is saved, and I am not reloading the table, the table moves to the top. The AJAX update function is within the pop-up:
$.ajax({
type: 'POST',
data: $("#formUserModification").serializeArray(),
url: '#Url.Action("UpdateUser")',
success: function (data) {
if (data.Errors === 'ERROR') {
ErrorDialog("#MessageDialog", "#lblError", "There was an error encountered in modifying the user, please try again later.", "Error");
}
else {
updateTable(data);
}
$("#divDetails").dialog('close');
},
beforeSend: function () {
$("#divOverlay").show();
},
complete: function () {
$("#divOverlay").hide();
}
});
The update function simply loads the row:
function updateTable(data) {
var tab = $("#tblAllUsers").dataTable();
tab.fnUpdate(data.LastName + ', ' + data.FirstName, data.RowIndex, 0);
tab.fnUpdate(data.ID, data.RowIndex, 2);
tab.fnUpdate(data.LocationText, data.RowIndex, 3);
tab.fnUpdate(data.SiteText, data.RowIndex, 4);
}
Is there a way with this setup to keep the scroll position?
I accomplished my goal by doing this:
Define a variable:
var scrollToPos;
In the dialog definition set the value when it is opened and place the scroll bar when it is closed:
$("#divAllUsersDetail").dialog({
autoOpen: false,
width: '90%',
resizable: false,
draggable: false,
title: 'Details',
position: { my: 'top', at: 'top+100' },
modal: true,
closeOnEscape: false,
open: function() {
scrollToPos = $("#divAllUsers").find(".dataTables_scrollBody").scrollTop();
},
close: function () {
$("#divAllUsers").find(".dataTables_scrollBody").scrollTop(scrollToPos);
},
show: {
effect: 'drop', direction: 'up'
},
hide: {
effect: 'fade', duration: 200
},
buttons: {
"Cancel": function () {
$(this).dialog("close");
}
}
}).prev("ui-dialog-titlebar").css("cursor", "default");
This works famously.
function getListPhoneNumbers() {
var data = {listContacts:[{name:'Ho Cong Vi',number:'12345666'},{name:'hcv',number:'6543218'}]};
WL.Logger.info('Data:'+JSON.stringify(data));
return data;
}
function addListPhoneNumber(data) {
WL.Logger.debug('Add Data to JSONStore: ' + data);
return;
}
function updateListPhoneNumber(data) {
WL.Logger.debug('Updata Data from JSONStore: ' + data);
return;
}
function deleteListPhoneNumber(data) {
WL.Logger.debug('Delete Data from JSONStore: ' + data);
return;
}
This is my code in main.js:
$('#show-all-btn').on('click', showAllData);
var collectionName = 'Contacts',
collections = {};
collections[collectionName] = {
searchFields: {
name: 'string',
number: 'string'
},
adapter: {
name: 'listPhoneNumbers',
add: 'addListPhoneNumber',
replace: 'updateListPhoneNumber',
remove: 'deleteListPhoneNumber',
load: {
procedure: 'getListPhoneNumbers',
param: [],
key: 'listContacts'
}
}
};
WL.JSONStore.init(collections)
function showAllData() {
$('#show-all-btn').on("click", function() {
$('#info').show();
});
WL.JSONStore.get(collectionName).load().then(function(res) {
alert('ok' + JSON.stringify(res));
}).fail(function(errorObject) {
alert(errorObject);
});
}
This is the error:
[wl.jsonstore] {"src":"load","err":18,"msg":"FAILED_TO_LOAD_INITIAL_DATA_FROM_ADAPTER_INVALID_LOAD_OBJ","col":"Contact","usr":"jsonstore","doc":{},"res":{}
The error message is saying the load object you passed is invalid. This is probably because you passed param instead of params. Notice the s at the end.
Also, this code:
WL.JSONStore.init(collections)
function showAllData() {
$('#show-all-btn').on("click", function() {
$('#info').show();
});
WL.JSONStore.get(collectionName).load().then(function(res) {
alert('ok' + JSON.stringify(res));
}).fail(function(errorObject) {
alert(errorObject);
});
}
Looks wrong, maybe what you meant to write is something like this:
WL.JSONStore.init(collections).then(function () {
WL.JSONStore.get(collectionName).count().then(function (numberOfDocsInCollection) {
if(numberOfDocsInCollection < 1) {
WL.JSONStore.get(collectionName).load().then(function(res) {
//handle success
})
}
})
});
I omitted handling failures for brevity. Note that the load will will duplicate items in the collection if those items already exist, hence the count to check if the collection is empty or not.
Simple question, pretty sure it's a complicated answer :)
Is it possible to implement some form of inheritance for viewmodels in Durandal?
So if you have a viewmodel something like this:
define(['durandal/app', 'services/datacontext', 'durandal/plugins/router', 'services/logger'],
function (app, datacontext, router, logger) {
var someVariable = ko.observable();
var isSaving = ko.observable(false);
var vm = {
activate: activate,
someVariable : someVariable,
refresh: refresh,
cancel: function () { router.navigateBack(); },
hasChanges: ko.computed(function () { return datacontext.hasChanges(); }),
canSave: ko.computed(function () { return datacontext.hasChanges() && !isSaving(); }),
goBack: function () { router.navigateBack(); },
save: function() {
isSaving(true);
return datacontext.saveChanges().fin(function () { isSaving(false); })
},
canDeactivate: function() {
if (datacontext.hasChanges()) {
var msg = 'Do you want to leave and cancel?';
return app.showMessage(msg, 'Navigate Away', ['Yes', 'No'])
.then(function(selectedOption) {
if (selectedOption === 'Yes') {
datacontext.cancelChanges();
}
return selectedOption;
});
}
return true;
}
};
return vm;
//#region Internal Methods
function activate(routeData) {
logger.log('View Activated for id {' + routeData.id + '}, null, 'View', true);
});
}
//#endregion
function refresh(id) {
return datacontext.getById(client, id);
}
});
Is it possible to make that into some kind of base type and inherit further viewmodels from it, being able to extend the requires list and so on?
There is another question on this, but the viewmodels don't appear to be quite the same as the one's that I build for durandal/HotTowel.
Thanks.
I'm pretty sure this can be accomplished with jQuery's extend method. This just occurred to me, so there may be something that I'm missing, but a basic example would be something along the lines of:
basevm.js
... your mentioned viewmodel
inheritingvm.js
define(['basevm'], function (basevm) {
var someNewObservable = ko.observable();
var vm = $.extend({
someNewObservable : someNewObservable
}, basevm);
return vm;
});
Please let me know if this works. I just coded from the top of my head and it hasn't been tested.
Just based off what your saying I came up with this. Let me know if this works for you and if it doesn't then let me know what I did wrong.
Thanks.
viewmodelBase
define(['durandal/app', 'services/datacontext', 'durandal/plugins/router', 'services/logger'],
function (app, datacontext, router, logger) {
var vm = function () {
var self = this;
this.someVariable = ko.observable();
this.isSaving = ko.observable(false);
this.hasChanges = ko.computed(function () { return datacontext.hasChanges(); });
this.canSave = ko.computed(function () { return datacontext.hasChanges() && !self.isSaving(); });
};
vm.prototype = {
activate: function (routeData) {
logger.log('View Activated for id {' + this.routeData.id + '}', null, 'View', true);
},
refresh: function (id) {
return datacontext.getById(client, id);
},
cancel: function () {
router.navigateBack();
},
goBack: function () { router.navigateBack(); },
save: function() {
var self = this;
this.isSaving(true);
return datacontext.saveChanges().fin(function () { self.isSaving(false); })
},
canDeactivate: function() {
if (datacontext.hasChanges()) {
var msg = 'Do you want to leave and cancel?';
return app.showMessage(msg, 'Navigate Away', ['Yes', 'No'])
.then(function(selectedOption) {
if (selectedOption === 'Yes') {
datacontext.cancelChanges();
}
return selectedOption;
});
}
return true;
}
};
return vm;
});
parent viewmodel
define([viewmodelBase], function (vmbase) {
var vm1 = new vmbase();
vm1.newProperty = "blah";
var vm2 = new vmbase();
});
I wrote a post on my blog that addresses this issue. In short, I use prototypical inheritance for all of my modal dialog views in one of my projects. Here's the link to the post I wrote (feel free to skip to the code part) and a jsFiddle example that demonstrates it.
Simplified example that can work in Durandal (NOTE: each view-model returns its constructor function, not an object):
viewmodels/modal.js
define(['durandal/system'],
function(system) {
var modal = function () {
this.name = 'Modal';
}
modal.prototype = {
activate: function() {
system.log(this.name + ' activating');
},
attached: function(view) {
system.log(this.name + ' attached');
},
deactivate: function() {
system.log(this.name + ' deactivating');
},
detached: function(view, parent) {
system.log(this.name + ' detached');
}
};
return modal;
});
viewmodels/child.js
define(['durandal/system', 'viewmodels/modal'],
function(system, Modal) {
var child = function() {
this.name = 'Child Modal';
}
// inherits from Modal
child.prototype = new Modal();
child.prototype.constructor = child;
child.prototype._super = Modal.prototype;
// overrides Modal's activate() method
child.prototype.activate = function() {
this._super.activate.call(this); // we can still call it from the _super property
system.log(this.name + ' activating [overridden version]');
};
return child;
});
I prefer this implementation because it supports code reuse, conforms to OOP principles as best as javascript allows, and it gives me the ability to call the base class' methods via the _super property when I need to. You can easily convert this as needed.