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
|
/**
* Ext JS Library 3.4.0
* Copyright(c) 2006-2011 Sencha Inc.
* licensing@sencha.com
* http://www.sencha.com/license
*/
/**
* @class Ext.tree.ColumnResizer
* @extends Ext.util.Observable
*/
Ext.tree.ColumnResizer = Ext.extend(Ext.util.Observable, {
/**
* @cfg {Number} minWidth The minimum width the column can be dragged to.
* Defaults to <tt>14</tt>.
*/
minWidth: 14,
constructor: function(config) {
Ext.apply(this, config);
Ext.tree.ColumnResizer.superclass.constructor.call(this);
},
init: function(tree) {
this.tree = tree;
tree.on('render', this.initEvents, this);
},
initEvents: function(tree) {
tree.mon(tree.innerHd, 'mousemove', this.handleHdMove, this);
this.tracker = new Ext.dd.DragTracker({
onBeforeStart: this.onBeforeStart.createDelegate(this),
onStart: this.onStart.createDelegate(this),
onDrag: this.onDrag.createDelegate(this),
onEnd: this.onEnd.createDelegate(this),
tolerance: 3,
autoStart: 300,
});
this.tracker.initEl(tree.innerHd);
tree.on('beforedestroy', this.tracker.destroy, this.tracker);
},
handleHdMove: function(e, t) {
var hw = 5,
x = e.getPageX(),
hd = e.getTarget('.x-treegrid-hd', 3, true);
if (hd) {
var r = hd.getRegion(),
ss = hd.dom.style,
pn = hd.dom.parentNode;
if (x - r.left <= hw && hd.dom !== pn.firstChild) {
var ps = hd.dom.previousSibling;
while (ps && Ext.fly(ps).hasClass('x-treegrid-hd-hidden')) {
ps = ps.previousSibling;
}
if (ps) {
this.activeHd = Ext.get(ps);
ss.cursor = Ext.isWebKit ? 'e-resize' : 'col-resize';
}
} else if (r.right - x <= hw) {
var ns = hd.dom;
while (ns && Ext.fly(ns).hasClass('x-treegrid-hd-hidden')) {
ns = ns.previousSibling;
}
if (ns) {
this.activeHd = Ext.get(ns);
ss.cursor = Ext.isWebKit ? 'w-resize' : 'col-resize';
}
} else {
delete this.activeHd;
ss.cursor = '';
}
}
},
onBeforeStart: function(e) {
this.dragHd = this.activeHd;
return !!this.dragHd;
},
onStart: function(e) {
this.dragHeadersDisabled = this.tree.headersDisabled;
this.tree.headersDisabled = true;
this.proxy = this.tree.body.createChild({ cls: 'x-treegrid-resizer' });
this.proxy.setHeight(this.tree.body.getHeight());
var x = this.tracker.getXY()[0];
this.hdX = this.dragHd.getX();
this.hdIndex = this.tree.findHeaderIndex(this.dragHd);
this.proxy.setX(this.hdX);
this.proxy.setWidth(x - this.hdX);
this.maxWidth =
this.tree.outerCt.getWidth() -
this.tree.innerBody.translatePoints(this.hdX).left;
},
onDrag: function(e) {
var cursorX = this.tracker.getXY()[0];
this.proxy.setWidth(
(cursorX - this.hdX).constrain(this.minWidth, this.maxWidth)
);
},
onEnd: function(e) {
var nw = this.proxy.getWidth(),
tree = this.tree,
disabled = this.dragHeadersDisabled;
this.proxy.remove();
delete this.dragHd;
tree.columns[this.hdIndex].width = nw;
tree.updateColumnWidths();
setTimeout(function() {
tree.headersDisabled = disabled;
}, 100);
},
});
|