LArea.js
15.2 KB
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
window.LArea = (function() {
var MobileArea = function() {
this.gearArea;
this.data;
this.index = 0;
this.value = [0, 0, 0];
}
MobileArea.prototype = {
init: function(params) {
this.params = params;
this.trigger = document.querySelector(params.trigger);
if(params.valueTo){
this.valueTo=document.querySelector(params.valueTo);
}
this.keys = params.keys;
this.type = params.type||1;
switch (this.type) {
case 1:
case 2:
break;
default:
throw new Error('错误提示: 没有这种数据源类型');
break;
}
this.bindEvent();
},
getData: function(callback) {
var _self = this;
if (typeof _self.params.data == "object") {
_self.data = _self.params.data;
callback();
} else {
var xhr = new XMLHttpRequest();
xhr.open('get', _self.params.data);
xhr.onload = function(e) {
if ((xhr.status >= 200 && xhr.status < 300) || xhr.status === 0) {
var responseData = JSON.parse(xhr.responseText);
_self.data = responseData.data;
if (callback) {
callback()
};
}
}
xhr.send();
}
},
bindEvent: function() {
var _self = this;
//呼出插件
function popupArea(e) {
_self.gearArea = document.createElement("div");
_self.gearArea.className = "gearArea";
_self.gearArea.innerHTML = '<div class="area_ctrl slideInUp">' +
'<div class="area_btn_box">' +
'<div class="area_btn larea_cancel">取消</div>' +
'<div class="area_btn larea_finish">确定</div>' +
'</div>' +
'<div class="area_roll_mask">' +
'<div class="area_roll">' +
'<div>' +
'<div class="gear area_province" data-areatype="area_province"></div>' +
'<div class="area_grid">' +
'</div>' +
'</div>' +
'<div>' +
'<div class="gear area_city" data-areatype="area_city"></div>' +
'<div class="area_grid">' +
'</div>' +
'</div>' +
'<div>' +
'<div class="gear area_county" data-areatype="area_county"></div>' +
'<div class="area_grid">' +
'</div>' +
'</div>' +
'</div>' +
'</div>' +
'</div>';
document.body.appendChild(_self.gearArea);
areaCtrlInit();
/*var gearAreaclass = _self.gearArea;
gearAreaclass.addEventListener('touchstart', function(e) {
console.log(e.path[3].className);
if(e.path[3].className!='area_ctrl slideInUp'){
_self.close(e);
}
});*/
var larea_cancel = _self.gearArea.querySelector(".larea_cancel");
larea_cancel.addEventListener('touchstart', function(e) {
_self.close(e);
});
var larea_finish = _self.gearArea.querySelector(".larea_finish");
larea_finish.addEventListener('touchstart', function(e) {
_self.finish(e);
});
var area_province = _self.gearArea.querySelector(".area_province");
var area_city = _self.gearArea.querySelector(".area_city");
var area_county = _self.gearArea.querySelector(".area_county");
area_province.addEventListener('touchstart', gearTouchStart);
area_city.addEventListener('touchstart', gearTouchStart);
area_county.addEventListener('touchstart', gearTouchStart);
area_province.addEventListener('touchmove', gearTouchMove);
area_city.addEventListener('touchmove', gearTouchMove);
area_county.addEventListener('touchmove', gearTouchMove);
area_province.addEventListener('touchend', gearTouchEnd);
area_city.addEventListener('touchend', gearTouchEnd);
area_county.addEventListener('touchend', gearTouchEnd);
}
//初始化插件默认值
function areaCtrlInit() {
_self.gearArea.querySelector(".area_province").setAttribute("val", _self.value[0]);
_self.gearArea.querySelector(".area_city").setAttribute("val", _self.value[1]);
_self.gearArea.querySelector(".area_county").setAttribute("val", _self.value[2]);
switch (_self.type) {
case 1:
_self.setGearTooth(_self.data);
break;
case 2:
_self.setGearTooth(_self.data[0]);
break;
}
}
//触摸开始
function gearTouchStart(e) {
e.preventDefault();
var target = e.target;
while (true) {
if (!target.classList.contains("gear")) {
target = target.parentElement;
} else {
break
}
}
clearInterval(target["int_" + target.id]);
target["old_" + target.id] = e.targetTouches[0].screenY;
target["o_t_" + target.id] = (new Date()).getTime();
var top = target.getAttribute('top');
if (top) {
target["o_d_" + target.id] = parseFloat(top.replace(/em/g, ""));
} else {
target["o_d_" + target.id] = 0;
}
target.style.webkitTransitionDuration = target.style.transitionDuration = '0ms';
}
//手指移动
function gearTouchMove(e) {
e.preventDefault();
var target = e.target;
while (true) {
if (!target.classList.contains("gear")) {
target = target.parentElement;
} else {
break
}
}
target["new_" + target.id] = e.targetTouches[0].screenY;
target["n_t_" + target.id] = (new Date()).getTime();
var f = (target["new_" + target.id] - target["old_" + target.id]) * 9 / window.innerHeight;
target["pos_" + target.id] = target["o_d_" + target.id] + f;
target.style["-webkit-transform"] = 'translate3d(0,' + target["pos_" + target.id] + 'em,0)';
target.setAttribute('top', target["pos_" + target.id] + 'em');
if(e.targetTouches[0].screenY<1){
gearTouchEnd(e);
};
}
//离开屏幕
function gearTouchEnd(e) {
e.preventDefault();
var target = e.target;
while (true) {
if (!target.classList.contains("gear")) {
target = target.parentElement;
} else {
break;
}
}
var flag = (target["new_" + target.id] - target["old_" + target.id]) / (target["n_t_" + target.id] - target["o_t_" + target.id]);
if (Math.abs(flag) <= 0.2) {
target["spd_" + target.id] = (flag < 0 ? -0.08 : 0.08);
} else {
if (Math.abs(flag) <= 0.5) {
target["spd_" + target.id] = (flag < 0 ? -0.16 : 0.16);
} else {
target["spd_" + target.id] = flag / 2;
}
}
if (!target["pos_" + target.id]) {
target["pos_" + target.id] = 0;
}
rollGear(target);
}
//缓动效果
function rollGear(target) {
var d = 0;
var stopGear = false;
function setDuration() {
target.style.webkitTransitionDuration = target.style.transitionDuration = '500ms';
stopGear = true;
}
clearInterval(target["int_" + target.id]);
target["int_" + target.id] = setInterval(function() {
var pos = target["pos_" + target.id];
var speed = target["spd_" + target.id] * Math.exp(-0.03 * d);
pos += speed;
if (Math.abs(speed) > 0.1) {} else {
var b = Math.round(pos / 2) * 2;
pos = b;
setDuration();
}
if (pos > 0) {
pos = 0;
setDuration();
}
var minTop = -(target.dataset.len - 1) * 2;
if (pos < minTop) {
pos = minTop;
setDuration();
}
if (stopGear) {
var gearVal = Math.abs(pos) / 2;
setGear(target, gearVal);
clearInterval(target["int_" + target.id]);
}
target["pos_" + target.id] = pos;
target.style["-webkit-transform"] = 'translate3d(0,' + pos + 'em,0)';
target.setAttribute('top', pos + 'em');
d++;
}, 30);
}
//控制插件滚动后停留的值
function setGear(target, val) {
val = Math.round(val);
target.setAttribute("val", val);
switch (_self.type) {
case 1:
_self.setGearTooth(_self.data);
break;
case 2:
switch(target.dataset['areatype']){
case 'area_province':
_self.setGearTooth(_self.data[0]);
break;
case 'area_city':
var ref = target.childNodes[val].getAttribute('ref');
var childData=[];
var nextData= _self.data[2];
for (var i in nextData) {
if(i==ref){
childData = nextData[i];
break;
}
};
_self.index=2;
_self.setGearTooth(childData);
break;
}
}
}
_self.getData(function() {
_self.trigger.addEventListener('click', popupArea);
});
},
//重置节点个数
setGearTooth: function(data) {
var _self = this;
var item = data || [];
var l = item.length;
var gearChild = _self.gearArea.querySelectorAll(".gear");
var gearVal = gearChild[_self.index].getAttribute('val');
var maxVal = l - 1;
if (gearVal > maxVal) {
gearVal = maxVal;
}
gearChild[_self.index].setAttribute('data-len', l);
if (l > 0) {
var id = item[gearVal][this.keys['id']];
var childData;
switch (_self.type) {
case 1:
childData = item[gearVal].child
break;
case 2:
var nextData= _self.data[_self.index+1]
for (var i in nextData) {
if(i==id){
childData = nextData[i];
break;
}
};
break;
}
var itemStr = "";
for (var i = 0; i < l; i++) {
itemStr += "<div class='tooth' ref='" + item[i][this.keys['id']] + "'>" + item[i][this.keys['name']] + "</div>";
}
gearChild[_self.index].innerHTML = itemStr;
gearChild[_self.index].style["-webkit-transform"] = 'translate3d(0,' + (-gearVal * 2) + 'em,0)';
gearChild[_self.index].setAttribute('top', -gearVal * 2 + 'em');
gearChild[_self.index].setAttribute('val', gearVal);
_self.index++;
if (_self.index > 2) {
_self.index = 0;
return;
}
_self.setGearTooth(childData);
} else {
gearChild[_self.index].innerHTML = "<div class='tooth'></div>";
gearChild[_self.index].setAttribute('val', 0);
if(_self.index==1){
gearChild[2].innerHTML = "<div class='tooth'></div>";
gearChild[2].setAttribute('val', 0);
}
_self.index = 0;
}
},
finish: function(e) {
var _self = this;
var area_province = _self.gearArea.querySelector(".area_province");
var area_city = _self.gearArea.querySelector(".area_city");
var area_county = _self.gearArea.querySelector(".area_county");
var provinceVal = parseInt(area_province.getAttribute("val"));
var provinceText = area_province.childNodes[provinceVal].textContent;
var provinceCode = area_province.childNodes[provinceVal].getAttribute('ref');
var cityVal = parseInt(area_city.getAttribute("val"));
var cityText = area_city.childNodes[cityVal].textContent;
var cityCode = area_city.childNodes[cityVal].getAttribute('ref');
var countyVal = parseInt(area_county.getAttribute("val"));
var countyText = area_county.childNodes[countyVal].textContent;
var countyCode = area_county.childNodes[countyVal].getAttribute('ref');
_self.trigger.value = provinceText + ((cityText)?(',' + cityText):(''))+ ((countyText)?(',' + countyText):(''));
_self.value = [provinceVal, cityVal, countyVal];
if(this.valueTo){
this.valueTo.value= provinceCode +((cityCode)?(',' + cityCode):('')) + ((countyCode)?(',' + countyCode):(''));
}
_self.close(e);
},
close: function(e) {
e.preventDefault();
var _self = this;
var evt = new CustomEvent('input');
_self.trigger.dispatchEvent(evt);
document.body.removeChild(_self.gearArea);
}
}
return MobileArea;
})()