author | hgs |
Fri, 06 Aug 2010 17:23:08 -0400 | |
changeset 9 | b39122337a00 |
parent 3 | 0954f5dd2cd0 |
permissions | -rw-r--r-- |
0
1450b09d0cfd
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
1 |
// |
1450b09d0cfd
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
2 |
// Use LongPress() to set a function callback for a long-press on a particular DOM element. |
1450b09d0cfd
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
3 |
// Parameters: |
1450b09d0cfd
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
4 |
// elementId: id string of the element |
1450b09d0cfd
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
5 |
// callback: the function to be called when the long-press fires |
1450b09d0cfd
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
6 |
// mouseDownCallback: the function to be called on mouse-down |
9 | 7 |
// timerValue : timeout value for long press |
0
1450b09d0cfd
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
8 |
// Example: |
3 | 9 |
// <javascript ...> |
0
1450b09d0cfd
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
10 |
// new LongPress("btnId", function(el) { alert("hello"); }); |
1450b09d0cfd
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
11 |
// </javascript> |
1450b09d0cfd
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
12 |
// ... |
1450b09d0cfd
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
13 |
// <img id="btnId" ... /> |
1450b09d0cfd
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
14 |
// |
3 | 15 |
var gInitialX = 0; |
16 |
var gInitialY = 0; |
|
17 |
||
9 | 18 |
function LongPress(elementId, callback, mouseDownCallback, timerValue) { |
0
1450b09d0cfd
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
19 |
this.el = document.getElementById(elementId); |
1450b09d0cfd
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
20 |
this.callback = callback; |
1450b09d0cfd
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
21 |
this.initialX = 0; |
1450b09d0cfd
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
22 |
this.initialY = 0; |
1450b09d0cfd
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
23 |
this.mouseDownCallback = mouseDownCallback; |
9 | 24 |
this.timerValue = timerValue; |
25 |
||
3 | 26 |
if (!this.el) { |
27 |
//window.app.debug("LongPress: element " + elementId + " not found"); |
|
28 |
return; |
|
29 |
} |
|
0
1450b09d0cfd
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
30 |
|
1450b09d0cfd
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
31 |
this.onTimerFired = function() { |
3 | 32 |
//window.app.debug("onTimerFired"); |
0
1450b09d0cfd
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
33 |
this.callback(this.el); |
1450b09d0cfd
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
34 |
this.cancelTimer(); |
1450b09d0cfd
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
35 |
this.unregisterMouseMove(); |
1450b09d0cfd
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
36 |
} |
1450b09d0cfd
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
37 |
|
1450b09d0cfd
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
38 |
this.startTimer = function() { |
1450b09d0cfd
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
39 |
this.cancelTimer(); |
9 | 40 |
this.timer = window.setTimeout(createDelegate(this, this.onTimerFired), timerValue); |
3 | 41 |
} |
0
1450b09d0cfd
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
42 |
|
1450b09d0cfd
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
43 |
this.cancelTimer = function() { |
3 | 44 |
if (this.timer) { |
0
1450b09d0cfd
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
45 |
window.clearTimeout(this.timer); |
1450b09d0cfd
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
46 |
this.timer = null; |
1450b09d0cfd
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
47 |
} |
1450b09d0cfd
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
48 |
} |
1450b09d0cfd
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
49 |
|
1450b09d0cfd
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
50 |
// Stop tracking mouse movements. |
1450b09d0cfd
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
51 |
this.unregisterMouseMove= function() { |
1450b09d0cfd
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
52 |
this.el.onmousemove = null; |
1450b09d0cfd
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
53 |
} |
1450b09d0cfd
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
54 |
|
3 | 55 |
// Stop tracking mouse out. |
56 |
this.unregisterMouseOut= function() { |
|
57 |
this.el.onmouseout = null; |
|
58 |
} |
|
59 |
||
0
1450b09d0cfd
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
60 |
this.cancel = function() { |
1450b09d0cfd
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
61 |
//window.app.debug("cancel"); |
1450b09d0cfd
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
62 |
this.cancelTimer(); |
3 | 63 |
this.unregisterMouseOut(); |
0
1450b09d0cfd
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
64 |
this.unregisterMouseMove(); |
1450b09d0cfd
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
65 |
} |
1450b09d0cfd
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
66 |
|
1450b09d0cfd
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
67 |
// If the mouse has moved too much it's not considered a long press, so cancel. |
1450b09d0cfd
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
68 |
this.onMouseMove = function() { |
1450b09d0cfd
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
69 |
//window.app.debug("LongPress::onMouseMove " + this + " event=" + window.event + |
1450b09d0cfd
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
70 |
// " " + window.event.clientX + "," + window.event.clientY); |
3 | 71 |
if (Math.abs(this.initialX - window.event.clientX) > 16 || |
72 |
Math.abs(this.initialY - window.event.clientY) > 16) { |
|
0
1450b09d0cfd
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
73 |
this.cancel(); |
1450b09d0cfd
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
74 |
} |
1450b09d0cfd
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
75 |
} |
1450b09d0cfd
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
76 |
|
1450b09d0cfd
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
77 |
// Start tracking the mouse and save the initial mouse coords. |
1450b09d0cfd
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
78 |
this.onMouseDown = function() { |
3 | 79 |
//window.app.debug("LongPress::onMouseDown " + this); |
0
1450b09d0cfd
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
80 |
this.isDown = true; |
1450b09d0cfd
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
81 |
this.initialX = window.event.clientX; |
1450b09d0cfd
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
82 |
this.initialY = window.event.clientY; |
3 | 83 |
gInitialX = window.event.clientX; |
84 |
gInitialY = window.event.clientY; |
|
85 |
this.el.onmouseout = this.cancel.bind(this); |
|
0
1450b09d0cfd
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
86 |
this.el.onmousemove = this.onMouseMove.bind(this); |
1450b09d0cfd
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
87 |
this.startTimer(); |
3 | 88 |
if (this.mouseDownCallback != undefined) |
0
1450b09d0cfd
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
89 |
this.mouseDownCallback(this); |
1450b09d0cfd
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
90 |
} |
1450b09d0cfd
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
91 |
|
3 | 92 |
this.el.onmousedown = this.onMouseDown.bind(this); |
0
1450b09d0cfd
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
93 |
|
1450b09d0cfd
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
94 |
// Cancel tracking on mouse up and out events, ie. not a long press. |
3 | 95 |
this.el.onmouseup = this.cancel.bind(this); |
0
1450b09d0cfd
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
96 |
} |