4b045f7c
 刘淇
江阴初始化项目
|
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
|
var pullDown = {
threshold: 95,
maxHeight: 200,
callRefresh: 'onrefresh',
callPullingDown: 'onpullingdown',
refreshSelector: '.uni-refresh'
};
function ready(newValue, oldValue, ownerInstance, instance) {
var state = instance.getState()
state.canPullDown = newValue;
// console.log(newValue);
}
function touchStart(e, instance) {
var state = instance.getState();
state.refreshInstance = instance.selectComponent(pullDown.refreshSelector);
state.canPullDown = (state.refreshInstance != null && state.refreshInstance != undefined);
if (!state.canPullDown) {
return
}
// console.log("touchStart");
state.height = 0;
state.touchStartY = e.touches[0].pageY || e.changedTouches[0].pageY;
state.refreshInstance.setStyle({
'height': 0
});
state.refreshInstance.callMethod("onchange", true);
}
function touchMove(e, ownerInstance) {
var instance = e.instance;
var state = instance.getState();
if (!state.canPullDown) {
return
}
var oldHeight = state.height;
var endY = e.touches[0].pageY || e.changedTouches[0].pageY;
var height = endY - state.touchStartY;
if (height > pullDown.maxHeight) {
return;
}
var refreshInstance = state.refreshInstance;
refreshInstance.setStyle({
'height': height + 'px'
});
height = height < pullDown.maxHeight ? height : pullDown.maxHeight;
state.height = height;
refreshInstance.callMethod(pullDown.callPullingDown, {
height: height
});
}
function touchEnd(e, ownerInstance) {
var state = e.instance.getState();
if (!state.canPullDown) {
return
}
state.refreshInstance.callMethod("onchange", false);
var refreshInstance = state.refreshInstance;
if (state.height > pullDown.threshold) {
refreshInstance.callMethod(pullDown.callRefresh);
return;
}
refreshInstance.setStyle({
'height': 0
});
}
function propObserver(newValue, oldValue, instance) {
pullDown = newValue;
}
module.exports = {
touchmove: touchMove,
touchstart: touchStart,
touchend: touchEnd,
propObserver: propObserver
}
|
