app/assets/javascripts/jcrop/jquery.Jcrop.js
/**
* jquery.Jcrop.js v0.9.10
* jQuery Image Cropping Plugin - released under MIT License
* Author: Kelly Hallman <khallman@gmail.com>
* http://github.com/tapmodo/Jcrop
* Copyright (c) 2008-2012 Tapmodo Interactive LLC {{{
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use,
* copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following
* conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*
* }}}
*/
(function ($) {
$.Jcrop = function (obj, opt) {
var options = $.extend({}, $.Jcrop.defaults),
docOffset, lastcurs, ie6mode = false;
// Internal Methods {{{
function px(n) {
return Math.round(n) + 'px';
}
function cssClass(cl) {
return options.baseClass + '-' + cl;
}
function supportsColorFade() {
return $.fx.step.hasOwnProperty('backgroundColor');
}
function getPos(obj) //{{{
{
var pos = $(obj).offset();
return [pos.left, pos.top];
}
//}}}
function mouseAbs(e) //{{{
{
return [(e.pageX - docOffset[0]), (e.pageY - docOffset[1])];
}
//}}}
function setOptions(opt) //{{{
{
if (typeof(opt) !== 'object') opt = {};
options = $.extend(options, opt);
$.each(['onChange','onSelect','onRelease','onDblClick'],function(i,e) {
if (typeof(options[e]) !== 'function') options[e] = function () {};
});
}
//}}}
function startDragMode(mode, pos) //{{{
{
docOffset = getPos($img);
Tracker.setCursor(mode === 'move' ? mode : mode + '-resize');
if (mode === 'move') {
return Tracker.activateHandlers(createMover(pos), doneSelect);
}
var fc = Coords.getFixed();
var opp = oppLockCorner(mode);
var opc = Coords.getCorner(oppLockCorner(opp));
Coords.setPressed(Coords.getCorner(opp));
Coords.setCurrent(opc);
Tracker.activateHandlers(dragmodeHandler(mode, fc), doneSelect);
}
//}}}
function dragmodeHandler(mode, f) //{{{
{
return function (pos) {
if (!options.aspectRatio) {
switch (mode) {
case 'e':
pos[1] = f.y2;
break;
case 'w':
pos[1] = f.y2;
break;
case 'n':
pos[0] = f.x2;
break;
case 's':
pos[0] = f.x2;
break;
}
} else {
switch (mode) {
case 'e':
pos[1] = f.y + 1;
break;
case 'w':
pos[1] = f.y + 1;
break;
case 'n':
pos[0] = f.x + 1;
break;
case 's':
pos[0] = f.x + 1;
break;
}
}
Coords.setCurrent(pos);
Selection.update();
};
}
//}}}
function createMover(pos) //{{{
{
var lloc = pos;
KeyManager.watchKeys();
return function (pos) {
Coords.moveOffset([pos[0] - lloc[0], pos[1] - lloc[1]]);
lloc = pos;
Selection.update();
};
}
//}}}
function oppLockCorner(ord) //{{{
{
switch (ord) {
case 'n':
return 'sw';
case 's':
return 'nw';
case 'e':
return 'nw';
case 'w':
return 'ne';
case 'ne':
return 'sw';
case 'nw':
return 'se';
case 'se':
return 'nw';
case 'sw':
return 'ne';
}
}
//}}}
function createDragger(ord) //{{{
{
return function (e) {
if (options.disabled) {
return false;
}
if ((ord === 'move') && !options.allowMove) {
return false;
}
// Fix position of crop area when dragged the very first time.
// Necessary when crop image is in a hidden element when page is loaded.
docOffset = getPos($img);
btndown = true;
startDragMode(ord, mouseAbs(e));
e.stopPropagation();
e.preventDefault();
return false;
};
}
//}}}
function presize($obj, w, h) //{{{
{
var nw = $obj.width(),
nh = $obj.height();
if ((nw > w) && w > 0) {
nw = w;
nh = (w / $obj.width()) * $obj.height();
}
if ((nh > h) && h > 0) {
nh = h;
nw = (h / $obj.height()) * $obj.width();
}
xscale = $obj.width() / nw;
yscale = $obj.height() / nh;
$obj.width(nw).height(nh);
}
//}}}
function unscale(c) //{{{
{
return {
x: c.x * xscale,
y: c.y * yscale,
x2: c.x2 * xscale,
y2: c.y2 * yscale,
w: c.w * xscale,
h: c.h * yscale
};
}
//}}}
function doneSelect(pos) //{{{
{
var c = Coords.getFixed();
if ((c.w > options.minSelect[0]) && (c.h > options.minSelect[1])) {
Selection.enableHandles();
Selection.done();
} else {
Selection.release();
}
Tracker.setCursor(options.allowSelect ? 'crosshair' : 'default');
}
//}}}
function newSelection(e) //{{{
{
if (options.disabled) {
return false;
}
if (!options.allowSelect) {
return false;
}
btndown = true;
docOffset = getPos($img);
Selection.disableHandles();
Tracker.setCursor('crosshair');
var pos = mouseAbs(e);
Coords.setPressed(pos);
Selection.update();
Tracker.activateHandlers(selectDrag, doneSelect);
KeyManager.watchKeys();
e.stopPropagation();
e.preventDefault();
return false;
}
//}}}
function selectDrag(pos) //{{{
{
Coords.setCurrent(pos);
Selection.update();
}
//}}}
function newTracker() //{{{
{
var trk = $('<div></div>').addClass(cssClass('tracker'));
if ($.browser.msie) {
trk.css({
opacity: 0,
backgroundColor: 'white'
});
}
return trk;
}
//}}}
// }}}
// Initialization {{{
// Sanitize some options {{{
if ($.browser.msie && ($.browser.version.split('.')[0] === '6')) {
ie6mode = true;
}
if (typeof(obj) !== 'object') {
obj = $(obj)[0];
}
if (typeof(opt) !== 'object') {
opt = {};
}
// }}}
setOptions(opt);
// Initialize some jQuery objects {{{
// The values are SET on the image(s) for the interface
// If the original image has any of these set, they will be reset
// However, if you destroy() the Jcrop instance the original image's
// character in the DOM will be as you left it.
var img_css = {
border: 'none',
visibility: 'visible',
margin: 0,
padding: 0,
position: 'absolute',
top: 0,
left: 0
};
var $origimg = $(obj),
img_mode = true;
if (obj.tagName == 'IMG') {
// Fix size of crop image.
// Necessary when crop image is within a hidden element when page is loaded.
if ($origimg[0].width != 0 && $origimg[0].height != 0) {
// Obtain dimensions from contained img element.
$origimg.width($origimg[0].width);
$origimg.height($origimg[0].height);
} else {
// Obtain dimensions from temporary image in case the original is not loaded yet (e.g. IE 7.0).
var tempImage = new Image();
tempImage.src = $origimg[0].src;
$origimg.width(tempImage.width);
$origimg.height(tempImage.height);
}
var $img = $origimg.clone().removeAttr('id').css(img_css).show();
$img.width($origimg.width());
$img.height($origimg.height());
$origimg.after($img).hide();
} else {
$img = $origimg.css(img_css).show();
img_mode = false;
if (options.shade === null) { options.shade = true; }
}
presize($img, options.boxWidth, options.boxHeight);
var boundx = $img.width(),
boundy = $img.height(),
$div = $('<div />').width(boundx).height(boundy).addClass(cssClass('holder')).css({
position: 'relative',
backgroundColor: options.bgColor
}).insertAfter($origimg).append($img);
if (options.addClass) {
$div.addClass(options.addClass);
}
var $img2 = $('<div />'),
$img_holder = $('<div />')
.width('100%').height('100%').css({
zIndex: 310,
position: 'absolute',
overflow: 'hidden'
}),
$hdl_holder = $('<div />')
.width('100%').height('100%').css('zIndex', 320),
$sel = $('<div />')
.css({
position: 'absolute',
zIndex: 600
}).dblclick(function(){
var c = Coords.getFixed();
options.onDblClick.call(api,c);
}).insertBefore($img).append($img_holder, $hdl_holder);
if (img_mode) {
$img2 = $('<img />')
.attr('src', $img.attr('src')).css(img_css).width(boundx).height(boundy),
$img_holder.append($img2);
}
if (ie6mode) {
$sel.css({
overflowY: 'hidden'
});
}
var bound = options.boundary;
var $trk = newTracker().width(boundx + (bound * 2)).height(boundy + (bound * 2)).css({
position: 'absolute',
top: px(-bound),
left: px(-bound),
zIndex: 290
}).mousedown(newSelection);
/* }}} */
// Set more variables {{{
var bgcolor = options.bgColor,
bgopacity = options.bgOpacity,
xlimit, ylimit, xmin, ymin, xscale, yscale, enabled = true,
btndown, animating, shift_down;
docOffset = getPos($img);
// }}}
// }}}
// Internal Modules {{{
// Touch Module {{{
var Touch = (function () {
// Touch support detection function adapted (under MIT License)
// from code by Jeffrey Sambells - http://github.com/iamamused/
function hasTouchSupport() {
var support = {},
events = ['touchstart', 'touchmove', 'touchend'],
el = document.createElement('div'), i;
try {
for(i=0; i<events.length; i++) {
var eventName = events[i];
eventName = 'on' + eventName;
var isSupported = (eventName in el);
if (!isSupported) {
el.setAttribute(eventName, 'return;');
isSupported = typeof el[eventName] == 'function';
}
support[events[i]] = isSupported;
}
return support.touchstart && support.touchend && support.touchmove;
}
catch(err) {
return false;
}
}
function detectSupport() {
if ((options.touchSupport === true) || (options.touchSupport === false)) return options.touchSupport;
else return hasTouchSupport();
}
return {
createDragger: function (ord) {
return function (e) {
e.pageX = e.originalEvent.changedTouches[0].pageX;
e.pageY = e.originalEvent.changedTouches[0].pageY;
if (options.disabled) {
return false;
}
if ((ord === 'move') && !options.allowMove) {
return false;
}
btndown = true;
startDragMode(ord, mouseAbs(e));
e.stopPropagation();
e.preventDefault();
return false;
};
},
newSelection: function (e) {
e.pageX = e.originalEvent.changedTouches[0].pageX;
e.pageY = e.originalEvent.changedTouches[0].pageY;
return newSelection(e);
},
isSupported: hasTouchSupport,
support: detectSupport()
};
}());
// }}}
// Coords Module {{{
var Coords = (function () {
var x1 = 0,
y1 = 0,
x2 = 0,
y2 = 0,
ox, oy;
function setPressed(pos) //{{{
{
pos = rebound(pos);
x2 = x1 = pos[0];
y2 = y1 = pos[1];
}
//}}}
function setCurrent(pos) //{{{
{
pos = rebound(pos);
ox = pos[0] - x2;
oy = pos[1] - y2;
x2 = pos[0];
y2 = pos[1];
}
//}}}
function getOffset() //{{{
{
return [ox, oy];
}
//}}}
function moveOffset(offset) //{{{
{
var ox = offset[0],
oy = offset[1];
if (0 > x1 + ox) {
ox -= ox + x1;
}
if (0 > y1 + oy) {
oy -= oy + y1;
}
if (boundy < y2 + oy) {
oy += boundy - (y2 + oy);
}
if (boundx < x2 + ox) {
ox += boundx - (x2 + ox);
}
x1 += ox;
x2 += ox;
y1 += oy;
y2 += oy;
}
//}}}
function getCorner(ord) //{{{
{
var c = getFixed();
switch (ord) {
case 'ne':
return [c.x2, c.y];
case 'nw':
return [c.x, c.y];
case 'se':
return [c.x2, c.y2];
case 'sw':
return [c.x, c.y2];
}
}
//}}}
function getFixed() //{{{
{
if (!options.aspectRatio) {
return getRect();
}
// This function could use some optimization I think...
var aspect = options.aspectRatio,
min_x = options.minSize[0] / xscale,
//min_y = options.minSize[1]/yscale,
max_x = options.maxSize[0] / xscale,
max_y = options.maxSize[1] / yscale,
rw = x2 - x1,
rh = y2 - y1,
rwa = Math.abs(rw),
rha = Math.abs(rh),
real_ratio = rwa / rha,
xx, yy, w, h;
if (max_x === 0) {
max_x = boundx * 10;
}
if (max_y === 0) {
max_y = boundy * 10;
}
if (real_ratio < aspect) {
yy = y2;
w = rha * aspect;
xx = rw < 0 ? x1 - w : w + x1;
if (xx < 0) {
xx = 0;
h = Math.abs((xx - x1) / aspect);
yy = rh < 0 ? y1 - h : h + y1;
} else if (xx > boundx) {
xx = boundx;
h = Math.abs((xx - x1) / aspect);
yy = rh < 0 ? y1 - h : h + y1;
}
} else {
xx = x2;
h = rwa / aspect;
yy = rh < 0 ? y1 - h : y1 + h;
if (yy < 0) {
yy = 0;
w = Math.abs((yy - y1) * aspect);
xx = rw < 0 ? x1 - w : w + x1;
} else if (yy > boundy) {
yy = boundy;
w = Math.abs(yy - y1) * aspect;
xx = rw < 0 ? x1 - w : w + x1;
}
}
// Magic %-)
if (xx > x1) { // right side
if (xx - x1 < min_x) {
xx = x1 + min_x;
} else if (xx - x1 > max_x) {
xx = x1 + max_x;
}
if (yy > y1) {
yy = y1 + (xx - x1) / aspect;
} else {
yy = y1 - (xx - x1) / aspect;
}
} else if (xx < x1) { // left side
if (x1 - xx < min_x) {
xx = x1 - min_x;
} else if (x1 - xx > max_x) {
xx = x1 - max_x;
}
if (yy > y1) {
yy = y1 + (x1 - xx) / aspect;
} else {
yy = y1 - (x1 - xx) / aspect;
}
}
if (xx < 0) {
x1 -= xx;
xx = 0;
} else if (xx > boundx) {
x1 -= xx - boundx;
xx = boundx;
}
if (yy < 0) {
y1 -= yy;
yy = 0;
} else if (yy > boundy) {
y1 -= yy - boundy;
yy = boundy;
}
return makeObj(flipCoords(x1, y1, xx, yy));
}
//}}}
function rebound(p) //{{{
{
if (p[0] < 0) {
p[0] = 0;
}
if (p[1] < 0) {
p[1] = 0;
}
if (p[0] > boundx) {
p[0] = boundx;
}
if (p[1] > boundy) {
p[1] = boundy;
}
return [p[0], p[1]];
}
//}}}
function flipCoords(x1, y1, x2, y2) //{{{
{
var xa = x1,
xb = x2,
ya = y1,
yb = y2;
if (x2 < x1) {
xa = x2;
xb = x1;
}
if (y2 < y1) {
ya = y2;
yb = y1;
}
return [xa, ya, xb, yb];
}
//}}}
function getRect() //{{{
{
var xsize = x2 - x1,
ysize = y2 - y1,
delta;
if (xlimit && (Math.abs(xsize) > xlimit)) {
x2 = (xsize > 0) ? (x1 + xlimit) : (x1 - xlimit);
}
if (ylimit && (Math.abs(ysize) > ylimit)) {
y2 = (ysize > 0) ? (y1 + ylimit) : (y1 - ylimit);
}
if (ymin / yscale && (Math.abs(ysize) < ymin / yscale)) {
y2 = (ysize > 0) ? (y1 + ymin / yscale) : (y1 - ymin / yscale);
}
if (xmin / xscale && (Math.abs(xsize) < xmin / xscale)) {
x2 = (xsize > 0) ? (x1 + xmin / xscale) : (x1 - xmin / xscale);
}
if (x1 < 0) {
x2 -= x1;
x1 -= x1;
}
if (y1 < 0) {
y2 -= y1;
y1 -= y1;
}
if (x2 < 0) {
x1 -= x2;
x2 -= x2;
}
if (y2 < 0) {
y1 -= y2;
y2 -= y2;
}
if (x2 > boundx) {
delta = x2 - boundx;
x1 -= delta;
x2 -= delta;
}
if (y2 > boundy) {
delta = y2 - boundy;
y1 -= delta;
y2 -= delta;
}
if (x1 > boundx) {
delta = x1 - boundy;
y2 -= delta;
y1 -= delta;
}
if (y1 > boundy) {
delta = y1 - boundy;
y2 -= delta;
y1 -= delta;
}
return makeObj(flipCoords(x1, y1, x2, y2));
}
//}}}
function makeObj(a) //{{{
{
return {
x: a[0],
y: a[1],
x2: a[2],
y2: a[3],
w: a[2] - a[0],
h: a[3] - a[1]
};
}
//}}}
return {
flipCoords: flipCoords,
setPressed: setPressed,
setCurrent: setCurrent,
getOffset: getOffset,
moveOffset: moveOffset,
getCorner: getCorner,
getFixed: getFixed
};
}());
//}}}
// Shade Module {{{
var Shade = (function() {
var enabled = false,
holder = $('<div />').css({
position: 'absolute',
zIndex: 240,
opacity: 0
}),
shades = {
top: createShade(),
left: createShade().height(boundy),
right: createShade().height(boundy),
bottom: createShade()
};
function resizeShades(w,h) {
shades.left.css({ height: px(h) });
shades.right.css({ height: px(h) });
}
function updateAuto()
{
return updateShade(Coords.getFixed());
}
function updateShade(c)
{
shades.top.css({
left: px(c.x),
width: px(c.w),
height: px(c.y)
});
shades.bottom.css({
top: px(c.y2),
left: px(c.x),
width: px(c.w),
height: px(boundy-c.y2)
});
shades.right.css({
left: px(c.x2),
width: px(boundx-c.x2)
});
shades.left.css({
width: px(c.x)
});
}
function createShade() {
return $('<div />').css({
position: 'absolute',
backgroundColor: options.shadeColor||options.bgColor
}).appendTo(holder);
}
function enableShade() {
if (!enabled) {
enabled = true;
holder.insertBefore($img);
updateAuto();
Selection.setBgOpacity(1,0,1);
$img2.hide();
setBgColor(options.shadeColor||options.bgColor,1);
if (Selection.isAwake())
{
setOpacity(options.bgOpacity,1);
}
else setOpacity(1,1);
}
}
function setBgColor(color,now) {
colorChangeMacro(getShades(),color,now);
}
function disableShade() {
if (enabled) {
holder.remove();
$img2.show();
enabled = false;
if (Selection.isAwake()) {
Selection.setBgOpacity(options.bgOpacity,1,1);
} else {
Selection.setBgOpacity(1,1,1);
Selection.disableHandles();
}
colorChangeMacro($div,0,1);
}
}
function setOpacity(opacity,now) {
if (enabled) {
if (options.bgFade && !now) {
holder.animate({
opacity: 1-opacity
},{
queue: false,
duration: options.fadeTime
});
}
else holder.css({opacity:1-opacity});
}
}
function refreshAll() {
options.shade ? enableShade() : disableShade();
if (Selection.isAwake()) setOpacity(options.bgOpacity);
}
function getShades() {
return holder.children();
}
return {
update: updateAuto,
updateRaw: updateShade,
getShades: getShades,
setBgColor: setBgColor,
enable: enableShade,
disable: disableShade,
resize: resizeShades,
refresh: refreshAll,
opacity: setOpacity
};
}());
// }}}
// Selection Module {{{
var Selection = (function () {
var awake,
hdep = 370,
borders = {},
handle = {},
dragbar = {},
seehandles = false;
// Private Methods
function insertBorder(type) //{{{
{
var jq = $('<div />').css({
position: 'absolute',
opacity: options.borderOpacity
}).addClass(cssClass(type));
$img_holder.append(jq);
return jq;
}
//}}}
function dragDiv(ord, zi) //{{{
{
var jq = $('<div />').mousedown(createDragger(ord)).css({
cursor: ord + '-resize',
position: 'absolute',
zIndex: zi
}).addClass('ord-'+ord);
if (Touch.support) {
jq.bind('touchstart.jcrop', Touch.createDragger(ord));
}
$hdl_holder.append(jq);
return jq;
}
//}}}
function insertHandle(ord) //{{{
{
var hs = options.handleSize;
return dragDiv(ord, hdep++).css({
opacity: options.handleOpacity
}).width(hs).height(hs).addClass(cssClass('handle'));
}
//}}}
function insertDragbar(ord) //{{{
{
return dragDiv(ord, hdep++).addClass('jcrop-dragbar');
}
//}}}
function createDragbars(li) //{{{
{
var i;
for (i = 0; i < li.length; i++) {
dragbar[li[i]] = insertDragbar(li[i]);
}
}
//}}}
function createBorders(li) //{{{
{
var cl,i;
for (i = 0; i < li.length; i++) {
switch(li[i]){
case'n': cl='hline'; break;
case's': cl='hline bottom'; break;
case'e': cl='vline right'; break;
case'w': cl='vline'; break;
}
borders[li[i]] = insertBorder(cl);
}
}
//}}}
function createHandles(li) //{{{
{
var i;
for (i = 0; i < li.length; i++) {
handle[li[i]] = insertHandle(li[i]);
}
}
//}}}
function moveto(x, y) //{{{
{
if (!options.shade) {
$img2.css({
top: px(-y),
left: px(-x)
});
}
$sel.css({
top: px(y),
left: px(x)
});
}
//}}}
function resize(w, h) //{{{
{
$sel.width(Math.round(w)).height(Math.round(h));
}
//}}}
function refresh() //{{{
{
var c = Coords.getFixed();
Coords.setPressed([c.x, c.y]);
Coords.setCurrent([c.x2, c.y2]);
updateVisible();
}
//}}}
// Internal Methods
function updateVisible(select) //{{{
{
if (awake) {
return update(select);
}
}
//}}}
function update(select) //{{{
{
var c = Coords.getFixed();
resize(c.w, c.h);
moveto(c.x, c.y);
if (options.shade) Shade.updateRaw(c);
awake || show();
if (select) {
options.onSelect.call(api, unscale(c));
} else {
options.onChange.call(api, unscale(c));
}
}
//}}}
function setBgOpacity(opacity,force,now) //{{{
{
if (!awake && !force) return;
if (options.bgFade && !now) {
$img.animate({
opacity: opacity
},{
queue: false,
duration: options.fadeTime
});
} else {
$img.css('opacity', opacity);
}
}
//}}}
function show() //{{{
{
$sel.show();
if (options.shade) Shade.opacity(bgopacity);
else setBgOpacity(bgopacity,true);
awake = true;
}
//}}}
function release() //{{{
{
disableHandles();
$sel.hide();
if (options.shade) Shade.opacity(1);
else setBgOpacity(1);
awake = false;
options.onRelease.call(api);
}
//}}}
function showHandles() //{{{
{
if (seehandles) {
$hdl_holder.show();
}
}
//}}}
function enableHandles() //{{{
{
seehandles = true;
if (options.allowResize) {
$hdl_holder.show();
return true;
}
}
//}}}
function disableHandles() //{{{
{
seehandles = false;
$hdl_holder.hide();
}
//}}}
function animMode(v) //{{{
{
if (v) {
animating = true;
disableHandles();
} else {
animating = false;
enableHandles();
}
}
//}}}
function done() //{{{
{
animMode(false);
refresh();
}
//}}}
// Insert draggable elements {{{
// Insert border divs for outline
if (options.dragEdges && $.isArray(options.createDragbars))
createDragbars(options.createDragbars);
if ($.isArray(options.createHandles))
createHandles(options.createHandles);
if (options.drawBorders && $.isArray(options.createBorders))
createBorders(options.createBorders);
//}}}
// This is a hack for iOS5 to support drag/move touch functionality
$(document).bind('touchstart.jcrop-ios',function(e) {
if ($(e.currentTarget).hasClass('jcrop-tracker')) e.stopPropagation();
});
var $track = newTracker().mousedown(createDragger('move')).css({
cursor: 'move',
position: 'absolute',
zIndex: 360
});
if (Touch.support) {
$track.bind('touchstart.jcrop', Touch.createDragger('move'));
}
$img_holder.append($track);
disableHandles();
return {
updateVisible: updateVisible,
update: update,
release: release,
refresh: refresh,
isAwake: function () {
return awake;
},
setCursor: function (cursor) {
$track.css('cursor', cursor);
},
enableHandles: enableHandles,
enableOnly: function () {
seehandles = true;
},
showHandles: showHandles,
disableHandles: disableHandles,
animMode: animMode,
setBgOpacity: setBgOpacity,
done: done
};
}());
//}}}
// Tracker Module {{{
var Tracker = (function () {
var onMove = function () {},
onDone = function () {},
trackDoc = options.trackDocument;
function toFront() //{{{
{
$trk.css({
zIndex: 450
});
if (Touch.support) {
$(document)
.bind('touchmove.jcrop', trackTouchMove)
.bind('touchend.jcrop', trackTouchEnd);
}
if (trackDoc) {
$(document)
.bind('mousemove.jcrop',trackMove)
.bind('mouseup.jcrop',trackUp);
}
}
//}}}
function toBack() //{{{
{
$trk.css({
zIndex: 290
});
$(document).unbind('.jcrop');
}
//}}}
function trackMove(e) //{{{
{
onMove(mouseAbs(e));
return false;
}
//}}}
function trackUp(e) //{{{
{
e.preventDefault();
e.stopPropagation();
if (btndown) {
btndown = false;
onDone(mouseAbs(e));
if (Selection.isAwake()) {
options.onSelect.call(api, unscale(Coords.getFixed()));
}
toBack();
onMove = function () {};
onDone = function () {};
}
return false;
}
//}}}
function activateHandlers(move, done) //{{{
{
btndown = true;
onMove = move;
onDone = done;
toFront();
return false;
}
//}}}
function trackTouchMove(e) //{{{
{
e.pageX = e.originalEvent.changedTouches[0].pageX;
e.pageY = e.originalEvent.changedTouches[0].pageY;
return trackMove(e);
}
//}}}
function trackTouchEnd(e) //{{{
{
e.pageX = e.originalEvent.changedTouches[0].pageX;
e.pageY = e.originalEvent.changedTouches[0].pageY;
return trackUp(e);
}
//}}}
function setCursor(t) //{{{
{
$trk.css('cursor', t);
}
//}}}
if (!trackDoc) {
$trk.mousemove(trackMove).mouseup(trackUp).mouseout(trackUp);
}
$img.before($trk);
return {
activateHandlers: activateHandlers,
setCursor: setCursor
};
}());
//}}}
// KeyManager Module {{{
var KeyManager = (function () {
var $keymgr = $('<input type="radio" />').css({
position: 'fixed',
left: '-120px',
width: '12px'
}).addClass('jcrop-keymgr'),
$keywrap = $('<div />').css({
position: 'absolute',
overflow: 'hidden'
}).append($keymgr);
function watchKeys() //{{{
{
if (options.keySupport) {
$keymgr.show();
$keymgr.focus();
}
}
//}}}
function onBlur(e) //{{{
{
$keymgr.hide();
}
//}}}
function doNudge(e, x, y) //{{{
{
if (options.allowMove) {
Coords.moveOffset([x, y]);
Selection.updateVisible(true);
}
e.preventDefault();
e.stopPropagation();
}
//}}}
function parseKey(e) //{{{
{
if (e.ctrlKey || e.metaKey) {
return true;
}
shift_down = e.shiftKey ? true : false;
var nudge = shift_down ? 10 : 1;
switch (e.keyCode) {
case 37:
doNudge(e, -nudge, 0);
break;
case 39:
doNudge(e, nudge, 0);
break;
case 38:
doNudge(e, 0, -nudge);
break;
case 40:
doNudge(e, 0, nudge);
break;
case 27:
if (options.allowSelect) Selection.release();
break;
case 9:
return true;
}
return false;
}
//}}}
if (options.keySupport) {
$keymgr.keydown(parseKey).blur(onBlur);
if (ie6mode || !options.fixedSupport) {
$keymgr.css({
position: 'absolute',
left: '-20px'
});
$keywrap.append($keymgr).insertBefore($img);
} else {
$keymgr.insertBefore($img);
}
}
return {
watchKeys: watchKeys
};
}());
//}}}
// }}}
// API methods {{{
function setClass(cname) //{{{
{
$div.removeClass().addClass(cssClass('holder')).addClass(cname);
}
//}}}
function animateTo(a, callback) //{{{
{
var x1 = a[0] / xscale,
y1 = a[1] / yscale,
x2 = a[2] / xscale,
y2 = a[3] / yscale;
if (animating) {
return;
}
var animto = Coords.flipCoords(x1, y1, x2, y2),
c = Coords.getFixed(),
initcr = [c.x, c.y, c.x2, c.y2],
animat = initcr,
interv = options.animationDelay,
ix1 = animto[0] - initcr[0],
iy1 = animto[1] - initcr[1],
ix2 = animto[2] - initcr[2],
iy2 = animto[3] - initcr[3],
pcent = 0,
velocity = options.swingSpeed;
x1 = animat[0];
y1 = animat[1];
x2 = animat[2];
y2 = animat[3];
Selection.animMode(true);
var anim_timer;
function queueAnimator() {
window.setTimeout(animator, interv);
}
var animator = (function () {
return function () {
pcent += (100 - pcent) / velocity;
animat[0] = Math.round(x1 + ((pcent / 100) * ix1));
animat[1] = Math.round(y1 + ((pcent / 100) * iy1));
animat[2] = Math.round(x2 + ((pcent / 100) * ix2));
animat[3] = Math.round(y2 + ((pcent / 100) * iy2));
if (pcent >= 99.8) {
pcent = 100;
}
if (pcent < 100) {
setSelectRaw(animat);
queueAnimator();
} else {
Selection.done();
Selection.animMode(false);
if (typeof(callback) === 'function') {
callback.call(api);
}
}
};
}());
queueAnimator();
}
//}}}
function setSelect(rect) //{{{
{
setSelectRaw([rect[0] / xscale, rect[1] / yscale, rect[2] / xscale, rect[3] / yscale]);
options.onSelect.call(api, unscale(Coords.getFixed()));
Selection.enableHandles();
}
//}}}
function setSelectRaw(l) //{{{
{
Coords.setPressed([l[0], l[1]]);
Coords.setCurrent([l[2], l[3]]);
Selection.update();
}
//}}}
function tellSelect() //{{{
{
return unscale(Coords.getFixed());
}
//}}}
function tellScaled() //{{{
{
return Coords.getFixed();
}
//}}}
function setOptionsNew(opt) //{{{
{
setOptions(opt);
interfaceUpdate();
}
//}}}
function disableCrop() //{{{
{
options.disabled = true;
Selection.disableHandles();
Selection.setCursor('default');
Tracker.setCursor('default');
}
//}}}
function enableCrop() //{{{
{
options.disabled = false;
interfaceUpdate();
}
//}}}
function cancelCrop() //{{{
{
Selection.done();
Tracker.activateHandlers(null, null);
}
//}}}
function destroy() //{{{
{
$div.remove();
$origimg.show();
$(obj).removeData('Jcrop');
}
//}}}
function setImage(src, callback) //{{{
{
Selection.release();
disableCrop();
var img = new Image();
img.onload = function () {
var iw = img.width;
var ih = img.height;
var bw = options.boxWidth;
var bh = options.boxHeight;
$img.width(iw).height(ih);
$img.attr('src', src);
$img2.attr('src', src);
presize($img, bw, bh);
boundx = $img.width();
boundy = $img.height();
$img2.width(boundx).height(boundy);
$trk.width(boundx + (bound * 2)).height(boundy + (bound * 2));
$div.width(boundx).height(boundy);
Shade.resize(boundx,boundy);
enableCrop();
if (typeof(callback) === 'function') {
callback.call(api);
}
};
img.src = src;
}
//}}}
function colorChangeMacro($obj,color,now) {
var mycolor = color || options.bgColor;
if (options.bgFade && supportsColorFade() && options.fadeTime && !now) {
$obj.animate({
backgroundColor: mycolor
}, {
queue: false,
duration: options.fadeTime
});
} else {
$obj.css('backgroundColor', mycolor);
}
}
function interfaceUpdate(alt) //{{{
// This method tweaks the interface based on options object.
// Called when options are changed and at end of initialization.
{
if (options.allowResize) {
if (alt) {
Selection.enableOnly();
} else {
Selection.enableHandles();
}
} else {
Selection.disableHandles();
}
Tracker.setCursor(options.allowSelect ? 'crosshair' : 'default');
Selection.setCursor(options.allowMove ? 'move' : 'default');
if (options.hasOwnProperty('trueSize')) {
xscale = options.trueSize[0] / boundx;
yscale = options.trueSize[1] / boundy;
}
if (options.hasOwnProperty('setSelect')) {
setSelect(options.setSelect);
Selection.done();
delete(options.setSelect);
}
Shade.refresh();
if (options.bgColor != bgcolor) {
colorChangeMacro(
options.shade? Shade.getShades(): $div,
options.shade?
(options.shadeColor || options.bgColor):
options.bgColor
);
bgcolor = options.bgColor;
}
if (bgopacity != options.bgOpacity) {
bgopacity = options.bgOpacity;
if (options.shade) Shade.refresh();
else Selection.setBgOpacity(bgopacity);
}
xlimit = options.maxSize[0] || 0;
ylimit = options.maxSize[1] || 0;
xmin = options.minSize[0] || 0;
ymin = options.minSize[1] || 0;
if (options.hasOwnProperty('outerImage')) {
$img.attr('src', options.outerImage);
delete(options.outerImage);
}
Selection.refresh();
}
//}}}
//}}}
if (Touch.support) $trk.bind('touchstart.jcrop', Touch.newSelection);
$hdl_holder.hide();
interfaceUpdate(true);
var api = {
setImage: setImage,
animateTo: animateTo,
setSelect: setSelect,
setOptions: setOptionsNew,
tellSelect: tellSelect,
tellScaled: tellScaled,
setClass: setClass,
disable: disableCrop,
enable: enableCrop,
cancel: cancelCrop,
release: Selection.release,
destroy: destroy,
focus: KeyManager.watchKeys,
getBounds: function () {
return [boundx * xscale, boundy * yscale];
},
getWidgetSize: function () {
return [boundx, boundy];
},
getScaleFactor: function () {
return [xscale, yscale];
},
getOptions: function() {
// careful: internal values are returned
return options;
},
ui: {
holder: $div,
selection: $sel
}
};
if ($.browser.msie)
$div.bind('selectstart', function () { return false; });
$origimg.data('Jcrop', api);
return api;
};
$.fn.Jcrop = function (options, callback) //{{{
{
var api;
// Iterate over each object, attach Jcrop
this.each(function () {
// If we've already attached to this object
if ($(this).data('Jcrop')) {
// The API can be requested this way (undocumented)
if (options === 'api') return $(this).data('Jcrop');
// Otherwise, we just reset the options...
else $(this).data('Jcrop').setOptions(options);
}
// If we haven't been attached, preload and attach
else {
if (this.tagName == 'IMG')
$.Jcrop.Loader(this,function(){
$(this).css({display:'block',visibility:'hidden'});
api = $.Jcrop(this, options);
if ($.isFunction(callback)) callback.call(api);
});
else {
$(this).css({display:'block',visibility:'hidden'});
api = $.Jcrop(this, options);
if ($.isFunction(callback)) callback.call(api);
}
}
});
// Return "this" so the object is chainable (jQuery-style)
return this;
};
//}}}
// $.Jcrop.Loader - basic image loader {{{
$.Jcrop.Loader = function(imgobj,success,error){
var $img = $(imgobj), img = $img[0];
function completeCheck(){
if (img.complete) {
$img.unbind('.jcloader');
if ($.isFunction(success)) success.call(img);
}
else window.setTimeout(completeCheck,50);
}
$img
.bind('load.jcloader',completeCheck)
.bind('error.jcloader',function(e){
$img.unbind('.jcloader');
if ($.isFunction(error)) error.call(img);
});
if (img.complete && $.isFunction(success)){
$img.unbind('.jcloader');
success.call(img);
}
};
//}}}
// Global Defaults {{{
$.Jcrop.defaults = {
// Basic Settings
allowSelect: true,
allowMove: true,
allowResize: true,
trackDocument: true,
// Styling Options
baseClass: 'jcrop',
addClass: null,
bgColor: 'black',
bgOpacity: 0.6,
bgFade: false,
borderOpacity: 0.4,
handleOpacity: 0.5,
handleSize: 7,
aspectRatio: 0,
keySupport: true,
createHandles: ['n','s','e','w','nw','ne','se','sw'],
createDragbars: ['n','s','e','w'],
createBorders: ['n','s','e','w'],
drawBorders: true,
dragEdges: true,
fixedSupport: true,
touchSupport: null,
shade: null,
boxWidth: 0,
boxHeight: 0,
boundary: 2,
fadeTime: 400,
animationDelay: 20,
swingSpeed: 3,
minSelect: [0, 0],
maxSize: [0, 0],
minSize: [0, 0],
// Callbacks / Event Handlers
onChange: function () {},
onSelect: function () {},
onDblClick: function () {},
onRelease: function () {}
};
// }}}
}(jQuery));