-
Notifications
You must be signed in to change notification settings - Fork 0
/
ViewModel.js
503 lines (426 loc) · 15.7 KB
/
ViewModel.js
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
var ViewModel = function(config){
var ViewModel = function(){};
ViewModel.prototype = {
/*
* @config config
* @memberOf ViewModel
* @desc
* config.className : sets a skinning CSS className.
*/
config: config,
viewmodel:{},
//------------------------------------------------------------
/*
* @function init
* @memberOf ViewModel
* @desc create the first DOM elements of the UI
*/
init: function(){
self.$Shipments = $('<div class="Shipments"></div>').addClass(self.config.className).appendTo(config.view);
self.$CreateShipmentName = $('<input class="CreateShipmentName" placeholder="Shipment Name" type="text"/>').appendTo(self.$Shipments);
self.$CreateShipment = $('<input class="CreateShipment" value="Create Shipment" type="button"/>').appendTo(self.$Shipments);
self.$Shipments.bind("click keydown keyup keypress change focus blur",self.eventDelegate);
self.$CreateShipmentName.focus();
},
//------------------------------------------------------------
/*
* @function eventDelegate
* @memberOf ViewModel
* @desc Routes events to handlers based on first css class name of the element.
* @param {event object} evt
*/
eventDelegate:function(evt){
var $elem = $(evt.target);
var binding = (evt.target.className||"").split(" ")[0];
if (!binding || !self.bindings[binding]){return};
var thishandler = self.bindings[binding][evt.type];
if (thishandler){thishandler($elem,evt)};
},
//------------------------------------------------------------
/*
* @object bindings
* @memberOf ViewModel
* @desc Container for event delegation bindings.
*/
bindings:{
CreateShipmentName: {
/*-----------------------------------------------------------
* @function keydown
* @memberOf ViewModel.bindings.CreateShipmentName
* @desc If input is [CR] then create a new shipment if the name is not empty.
*/
keydown: function($elem,evt){
if (evt.keyCode == 13 && $elem.val()!="") {
self.bindings.CreateShipment.click($elem,evt);
evt.preventDefault();
evt.stopPropagation();
return false;
}
}
},
CreateShipment: {
/*-----------------------------------------------------------
* @function click
* @memberOf ViewModel.bindings.CreateShipment
* @desc Creates a new shipment.
*/
click:function($elem,evt){
var ship_name = self.$CreateShipmentName.val();
if (ship_name === "") {
alert("Please enter a shipment name");
self.$CreateShipmentName.focus();
return;
}
var new_ship = self.config.model.addShipment(ship_name);
var ship_id = new_ship.ship_id;
var $new_Shipment = $('<div class="Shipment"></div>');
var $new_ShipmentInner = $('<div class="ShipmentInner"></div>').appendTo($new_Shipment);
var $new_ShipmentName = $('<input class="ShipmentName" placeholder="Shipment Name"/>').val(ship_name).appendTo($new_ShipmentInner);
var $new_ShipmentWeight = $('<div class="ShipmentWeight"></div>').appendTo($new_ShipmentInner);
var $new_ShipItems = $('<div class="ShipItems"></div>').appendTo($new_ShipmentInner);
$new_ShipmentName.bind("focus blur change",self.eventDelegate); //bind to input because <div> can't bind focus/blur events
var $new_item_add = $('<input class="AddItem" type="button" value="Add Item"/>').appendTo($new_ShipmentInner);
var $new_remove_ship= $('<input class="RemoveShipment" value="Remove Shipment" type="button"/>').appendTo($new_ShipmentInner);
$new_Shipment.appendTo(self.$Shipments);
$new_Shipment.find("input").data("ship_id",ship_id); //attach ship_id to all inputs for use with delegate event handler
self.viewmodel[new_ship.ship_id] = {
$Shipment : $new_Shipment,
$ShipmentInner : $new_ShipmentInner,
$ShipmentName : $new_ShipmentName,
$ShipmentWeight : $new_ShipmentWeight,
$ShipItems : $new_ShipItems,
items : {}
};
self.createItem( ship_id ); //create a new shippint item
var new_height = $new_ShipmentInner.height();
$new_Shipment.css({"height":0,"opacity":0}).animate({"height":new_height,"opacity":1},300,function(evt){
$(this).css({"overflow":"visible","height":"auto"});
});
self.$CreateShipmentName.val(""); //reset shipment name input to blank
}
},
RemoveShipment: {
/*-----------------------------------------------------------
* @function click
* @memberOf ViewModel.bindings.RemoveShipment
* @desc Removes a shipment from the viewmodel and the model.
*/
click:function($elem,evt){
var ship_id = $elem.data("ship_id");
self.config.model.removeShipment(ship_id);
self.viewmodel[ship_id].$ShipmentName.unbind("focus blur change",self.eventDelegate);
self.viewmodel[ship_id].$Shipment.css("overflow","hidden").animate({"height":0,"opacity":0},300,function(){
self.viewmodel[ship_id].$Shipment.remove();
delete self.viewmodel[ship_id];
});
self.$CreateShipmentName.focus();
}
},
ShipmentName: {
/*-----------------------------------------------------------
* @function keyup
* @memberOf ViewModel.bindings.ShipmentName
* @desc Updates the name of a shipment in the ViewModel and the Model.
*/
keyup: function($elem,evt){
var ship_id = $elem.data("ship_id");
self.config.model.setShipmentName(ship_id, $elem.val());
},
/*-----------------------------------------------------------
* @function change
* @memberOf ViewModel.bindings.ShipmentName
* @desc Updates the name of a shipment in the ViewModel and the Model.
*/
change: function($elem,evt){
self.bindings.ShipmentName.keyup($elem,evt);
},
/*-----------------------------------------------------------
* @function click
* @memberOf ViewModel.bindings.ShipmentName
* @desc Sets the background-color of the input to white.
*/
click:function($elem,evt){
$elem.css("background-color","white");
},
/*-----------------------------------------------------------
* @function focus
* @memberOf ViewModel.bindings.ShipmentName
* @desc Sets the background-color of the input to white.
*/
focus:function($elem,evt){
self.bindings.ShipmentName.click($elem,evt);
},
/*-----------------------------------------------------------
* @function blur
* @memberOf ViewModel.bindings.ShipmentName
* @desc Sets the background-color of the input to transparent.
*/
blur:function($elem,evt){
$elem.css("background-color","transparent");
}
},
AddItem: {
/*-----------------------------------------------------------
* @function click
* @memberOf ViewModel.bindings.AddItem
* @desc Adds a new item to the ViewModel and the Model.
*/
click: function($elem,evt){
var ship_id = $elem.data("ship_id");
self.createItem( ship_id );
}
},
ItemName: {
/*-----------------------------------------------------------
* @function keyup
* @memberOf ViewModel.bindings.ItemName
* @desc Updates the item name in the ViewModel and the Model.
*/
keyup: function($elem,evt){
var ship_id = $elem.data("ship_id");
var item_id = $elem.data("item_id");
self.config.model.setItemName(ship_id,item_id,$elem.val());
if ($elem.val()!="") {
$elem.removeClass("inputerror"); //if there was an error on this input, clear it.
}
},
/*-----------------------------------------------------------
* @function keydown
* @memberOf ViewModel.bindings.ItemName
* @desc Updates the item name in the ViewModel and the Model.
*/
keydown: function($elem,evt){
if (evt.keyCode === 13) {
var ship_id = $elem.data("ship_id");
var item_id = $elem.data("item_id");
self.viewmodel[ship_id].items[item_id].$ItemWeight.focus();
evt.preventDefault();
evt.stopPropagation();
return false;
}
},
/*-----------------------------------------------------------
* @function change
* @memberOf ViewModel.bindings.ItemName
* @desc Updates the item name in the ViewModel and the Model.
*/
change: function($elem,evt){
self.bindings.ItemName.keyup($elem,evt);
}
},
ItemWeight: {
/*-----------------------------------------------------------
* @function change
* @memberOf ViewModel.bindings.ItemWeight
* @desc Updates the item weight in the ViewModel and the Model. Also updates the total weight. Advances to next item if [CR] or [TAB] is pressed.
*/
keydown: function($elem,evt){
if ( self.filterFloatKey($elem,evt) ){
evt.preventDefault();
evt.stopPropagation();
return false;
}
$elem.removeClass("inputerror"); //if there was an error on this input, clear it.
//if the element is the last weight input and carriage-return or tab is pressed, then create a new item automatically
var thisval = $elem.val();
var ship_id = $elem.data("ship_id");
var item_id = $elem.data("item_id");
if (
thisval != "" &&
( evt.keyCode === 13 || (evt.keyCode === 9 && !evt.shiftKey) ) &&
( self.viewmodel[ship_id].$ShipItems.find(".ItemWeight").last().data("item_id") === $elem.data("item_id") )
){
self.createItem(ship_id);
evt.preventDefault();
evt.stopPropagation();
return false
};
},
/*-----------------------------------------------------------
* @function keyup
* @memberOf ViewModel.bindings.ItemWeight
* @desc Updates the item weight in the ViewModel and the Model. Also updates the total weight. Advances to next item if [CR] or [TAB] is pressed.
*/
keyup: function($elem,evt){
var ship_id = $elem.data("ship_id");
var item_id = $elem.data("item_id");
var thisval = $elem.val();
//be sure that no pasted text breaks the floating point input
if ( thisval.replace(/[^0-9\.]/g,"") != thisval ) {
$elem.val(parseFloat(thisval)||"");
} else {
var weight = parseFloat(thisval);
self.setItemWeight(ship_id,item_id,weight);
}
},
/*-----------------------------------------------------------
* @function change
* @memberOf ViewModel.bindings.ItemWeight
* @desc Updates the item weight in the ViewModel and the Model. Also updates the total weight. Advances to next item if [CR] or [TAB] is pressed.
*/
change: function($elem,evt){
self.bindings.ItemWeight.keyup($elem,evt);
}
},
ItemRemove: {
/*-----------------------------------------------------------
* @function click
* @memberOf ViewModel.bindings.ItemRemove
* @desc Removes an item from the ViewModel and the Model. Updates the total weight.
*/
click: function($elem,evt){
var ship_id = $elem.data("ship_id");
var item_id = $elem.data("item_id");
self.config.model.removeItem(ship_id,item_id);
self.viewmodel[ship_id].items[item_id].$Item.remove();
delete self.viewmodel[ship_id].items[item_id];
self.updateShipmentWeight(ship_id);
}
}
},
//------------------------------------------------------------
/*
* @function setItemWeight
* @memberOf ViewModel
* @desc Updates item weight and then updates total weight.
* @param {string} ship_id, {string} item_id, {float} weight,
*/
setItemWeight: function(ship_id,item_id,weight){
self.config.model.setItemWeight(ship_id,item_id,weight);
self.updateShipmentWeight(ship_id);
},
//------------------------------------------------------------
/*
* @function updateShipmentWeight
* @memberOf ViewModel
* @desc Displays the total shipping weight.
* @param {string} ship_id
*/
updateShipmentWeight: function(ship_id){
self.viewmodel[ship_id].$ShipmentWeight.html(" Total Weight: "+ self.config.model.getShipmentTotalWeight(ship_id).toFixed(1) + " lbs");
},
//------------------------------------------------------------
/*
* @function createItem
* @memberOf ViewModel
* @desc Creates new item DOM elements and updates the model.
* @param {string} ship_id
*/
createItem: function(ship_id){
var item_id = self.config.model.addItem(ship_id).item_id;
var new_item = {
$Item : $('<div class="Item"></div>'),
$ItemName : $('<input class="ItemName" placeholder="Item Name" type="text" value=""/>'),
$ItemWeight : $('<input class="ItemWeight" placeholder="Item Weight" type="text" value=""/>'),
$ItemRemove : $('<input class="ItemRemove" type="button" value="Remove"/>')
};
self.viewmodel[ship_id].items[item_id] = new_item;
new_item.$Item.append( new_item.$ItemName , new_item.$ItemWeight , new_item.$ItemRemove);
new_item.$Item.appendTo(self.viewmodel[ship_id].$ShipItems);
new_item.$Item.find("*").data({"ship_id":ship_id,"item_id":item_id});
new_item.$ItemName.focus();
return {ship_id:ship_id,item_id:item_id};
},
//------------------------------------------------------------
/*
* @function filterFloatKey
* @memberOf ViewModel
* @param {jQuery} $elem, {event object} evt
* @desc Use keyCode whitelist to enforce floating point input.
*
* whitelist:
* 1 = no modifiers
* 2 = Control key
* 4 = Alt key
* 8 = Shift key
*
* example:
* 117:6 = ctrl + alt + u
* 36:8 = shift + home
*/
filterFloatKey: function($elem,evt){
var bad_key = true;
var whitelist = {
8 :1, // backspace
9 :9, // tab
13 :1, // return
35 :9, // end
36 :9, // home
37 :9, // left arrow
39 :9, // right arrow
48 :1, // 0
49 :1, // 1
50 :1, // 2
51 :1, // 3
52 :1, // 4
53 :1, // 5
54 :1, // 6
55 :1, // 7
56 :1, // 8
57 :1, // 9
65 :2, // ctrl-a
67 :2, // ctrl-c
86 :2, // ctrl-v
88 :2, // ctrl-x
96 :1, // number pad 0
97 :1, // number pad 1
98 :1, // number pad 2
99 :1, // number pad 3
100 :1, // number pad 4
101 :1, // number pad 5
102 :1, // number pad 6
103 :1, // number pad 7
104 :1, // number pad 8
105 :1, // number pad 9
110 :1, // decimal point
190 :1 // period
};
var whitekey = whitelist[evt.keyCode];
if (
whitekey != undefined &&
(whitekey&1 && !(evt.ctrlKey||evt.altKey||evt.shiftKey)) ||
(whitekey&2 && evt.ctrlKey) ||
(whitekey&4 && evt.altKey) ||
(whitekey&8 && evt.shiftKey)
){
bad_key = false;
}
//enforce double decimal point or only decimal point as input
if (evt.keyCode === 190 && ($elem.val().indexOf(".")!=-1 || $elem.val()==="") ) {bad_key = true};
return bad_key;
},
//---------------------------------------------------------
/*
* @function exportModel
* @memberOf ViewModel
* @desc Tests input elements for completeness, shows errors if empty inputs exist, or returns the model data as a JSON string.
* @returns {string} JSON data from model
*/
exportModel: function(){
//Test to make sure all DOM elements are filled in before exporting data
//If a DOM element is missing a value then make the border red indicating a fix is needed
var has_empty_items = false;
for (var ship_id in self.viewmodel) {
for (var item_id in self.viewmodel[ship_id].items) {
var this_item = self.viewmodel[ship_id].items[item_id];
if (this_item.$ItemName.val() == "") {
self.viewmodel[ship_id].items[item_id].$ItemName.addClass("inputerror");
has_empty_items = true;
}
if (this_item.$ItemWeight.val() == "") {
self.viewmodel[ship_id].items[item_id].$ItemWeight.addClass("inputerror");
has_empty_items = true;
}
}
}
if (has_empty_items == true) {
alert("Some items are missing names or weights");
} else {
return self.config.model.exportModel();
};
}
};
var self = new ViewModel();
self.init();
return self
}