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
|
<?php
/**
* Photo tagging JavaScript
*
* @author Cash Costello
* @license http://www.gnu.org/licenses/gpl-2.0.html GNU General Public License v2
*/
?>
//<script>
elgg.provide('elgg.tidypics.tagging');
elgg.tidypics.tagging.init = function() {
elgg.tidypics.tagging.active = false;
$('[rel=photo-tagging]').click(elgg.tidypics.tagging.start);
$('#tidypics-tagging-quit').click(elgg.tidypics.tagging.stop);
$('.tidypics-tag').each(elgg.tidypics.tagging.position);
elgg.tidypics.tagging.tag_hover = false;
elgg.tidypics.tagging.toggleTagHover();
};
/**
* Start a tagging session
*/
elgg.tidypics.tagging.start = function(event) {
if (elgg.tidypics.tagging.active) {
elgg.tidypics.tagging.stop(event);
return;
}
$('.tidypics-photo').imgAreaSelect({
disable : false,
hide : false,
classPrefix : 'tidypics-tagging',
onSelectEnd : elgg.tidypics.tagging.startSelect,
onSelectStart: function() {
$('#tidypics-tagging-select').hide();
}
});
elgg.tidypics.tagging.toggleTagHover();
$('.tidypics-photo').css({"cursor" : "crosshair"});
$('#tidypics-tagging-help').toggle();
elgg.tidypics.tagging.active = true;
event.preventDefault();
};
/**
* Stop tagging
*
* A tagging session could be completed or the user could have quit.
*/
elgg.tidypics.tagging.stop = function(event) {
$('#tidypics-tagging-help').toggle();
$('#tidypics-tagging-select').hide();
$('.tidypics-photo').imgAreaSelect({hide: true, disable: true});
$('.tidypics-photo').css({"cursor" : "pointer"});
elgg.tidypics.tagging.active = false;
elgg.tidypics.tagging.toggleTagHover();
event.preventDefault();
};
/**
* Start the selection stage of tagging
*/
elgg.tidypics.tagging.startSelect = function(img, selection) {
var coords = '"x1":"' + selection.x1 + '",';
coords += '"y1":"' + selection.y1 + '",';
coords += '"width":"' + selection.width + '",';
coords += '"height":"' + selection.height + '"';
$("input[name=coordinates]").val(coords);
$('#tidypics-tagging-select').show()
.css({
'top' : selection.y2 + 10,
'left' : selection.x2
})
.find('input[type=text]').focus();
};
/**
* Position the tags over the image
*/
elgg.tidypics.tagging.position = function() {
var tag_left = parseInt($(this).data('x1'));
var tag_top = parseInt($(this).data('y1'));
var tag_width = parseInt($(this).data('width'));
var tag_height = parseInt($(this).data('height'));
// add image offset
var image_pos = $('.tidypics-photo').position();
tag_left += image_pos.left;
tag_top += image_pos.top;
$(this).parent().css({
left: tag_left + 'px',
top: tag_top + 'px' /*
width: tag_width + 'px',
height: tag_height + 'px' */
});
$(this).css({
width: tag_width + 'px',
height: tag_height + 'px'
});
};
/**
* Toggle whether tags are shown on hover over the image
*/
elgg.tidypics.tagging.toggleTagHover = function() {
if (elgg.tidypics.tagging.tag_hover == false) {
$('.tidypics-photo').hover(
function() {
$('.tidypics-tag-wrapper').show();
},
function(event) {
// this check handles the tags appearing over the image
var mouseX = event.pageX;
var mouseY = event.pageY;
var offset = $('.tidypics-photo').offset();
var width = $('.tidypics-photo').outerWidth() - 1;
var height = $('.tidypics-photo').outerHeight() - 1;
mouseX -= offset.left;
mouseY -= offset.top;
if (mouseX < 0 || mouseX > width || mouseY < 0 || mouseY > height) {
$('.tidypics-tag-wrapper').hide();
}
}
);
} else {
$('.tidypics-photo').hover(
function() {
$('.tidypics-tag-wrapper').hide();
},
function() {
$('.tidypics-tag-wrapper').hide();
}
);
}
elgg.tidypics.tagging.tag_hover = !elgg.tidypics.tagging.tag_hover;
};
elgg.register_hook_handler('init', 'system', elgg.tidypics.tagging.init);
|
