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jquery.imgareaselect.js

/*
 * imgAreaSelect jQuery plugin
 * version 0.9.10
 *
 * Copyright (c) 2008-2013 Michal Wojciechowski (odyniec.net)
 *
 * Dual licensed under the MIT (MIT-LICENSE.txt)
 * and GPL (GPL-LICENSE.txt) licenses.
 *
 * http://odyniec.net/projects/imgareaselect/
 *
 */

(function($) {

var abs = Math.abs,
    max = Math.max,
    min = Math.min,
    round = Math.round;

function div() {
    return $('<div/>');
}

$.imgAreaSelect = function (img, options) {
    var

$img = $(img),

imgLoaded,

$box = div(),
        $area = div(),
        $border = div().add(div()).add(div()).add(div()),
        $outer = div().add(div()).add(div()).add(div()),
        $handles = $([]),

$areaOpera,

left, top,

imgOfs = { left: 0, top: 0 },

imgWidth, imgHeight,

$parent,

parOfs = { left: 0, top: 0 },

zIndex = 0,

position = 'absolute',

startX, startY,

scaleX, scaleY,

resize,

minWidth, minHeight, maxWidth, maxHeight,

aspectRatio,

shown,

x1, y1, x2, y2,

selection = { x1: 0, y1: 0, x2: 0, y2: 0, width: 0, height: 0 },

docElem = document.documentElement,

ua = navigator.userAgent,

$p, d, i, o, w, h, adjusted;

function viewX(x) {
        return x + imgOfs.left - parOfs.left;
    }

function viewY(y) {
        return y + imgOfs.top - parOfs.top;
    }

function selX(x) {
        return x - imgOfs.left + parOfs.left;
    }

function selY(y) {
        return y - imgOfs.top + parOfs.top;
    }

function evX(event) {
        return event.pageX - parOfs.left;
    }

function evY(event) {
        return event.pageY - parOfs.top;
    }

function getSelection(noScale) {
        var sx = noScale || scaleX, sy = noScale || scaleY;

return { x1: round(selection.x1 * sx),
            y1: round(selection.y1 * sy),
            x2: round(selection.x2 * sx),
            y2: round(selection.y2 * sy),
            width: round(selection.x2 * sx) - round(selection.x1 * sx),
            height: round(selection.y2 * sy) - round(selection.y1 * sy) };
    }

function setSelection(x1, y1, x2, y2, noScale) {
        var sx = noScale || scaleX, sy = noScale || scaleY;

selection = {
            x1: round(x1 / sx || 0),
            y1: round(y1 / sy || 0),
            x2: round(x2 / sx || 0),
            y2: round(y2 / sy || 0)
        };

selection.width = selection.x2 - selection.x1;
        selection.height = selection.y2 - selection.y1;
    }

function adjust() {
        if (!imgLoaded || !$img.width())
            return;

imgOfs = { left: round($img.offset().left), top: round($img.offset().top) };

imgWidth = $img.innerWidth();
        imgHeight = $img.innerHeight();

imgOfs.top += ($img.outerHeight() - imgHeight) >> 1;
        imgOfs.left += ($img.outerWidth() - imgWidth) >> 1;

minWidth = round(options.minWidth / scaleX) || 0;
        minHeight = round(options.minHeight / scaleY) || 0;
        maxWidth = round(min(options.maxWidth / scaleX || 1<<24, imgWidth));
        maxHeight = round(min(options.maxHeight / scaleY || 1<<24, imgHeight));

if ($().jquery == '1.3.2' && position == 'fixed' &&
            !docElem['getBoundingClientRect'])
        {
            imgOfs.top += max(document.body.scrollTop, docElem.scrollTop);
            imgOfs.left += max(document.body.scrollLeft, docElem.scrollLeft);
        }

parOfs = /absolute|relative/.test($parent.css('position')) ?
            { left: round($parent.offset().left) - $parent.scrollLeft(),
                top: round($parent.offset().top) - $parent.scrollTop() } :
            position == 'fixed' ?
                { left: $(document).scrollLeft(), top: $(document).scrollTop() } :
                { left: 0, top: 0 };

left = viewX(0);
        top = viewY(0);

if (selection.x2 > imgWidth || selection.y2 > imgHeight)
            doResize();
    }

function update(resetKeyPress) {
        if (!shown) return;

$box.css({ left: viewX(selection.x1), top: viewY(selection.y1) })
            .add($area).width(w = selection.width).height(h = selection.height);

$area.add($border).add($handles).css({ left: 0, top: 0 });

$border
            .width(max(w - $border.outerWidth() + $border.innerWidth(), 0))
            .height(max(h - $border.outerHeight() + $border.innerHeight(), 0));

$($outer[0]).css({ left: left, top: top,
            width: selection.x1, height: imgHeight });
        $($outer[1]).css({ left: left + selection.x1, top: top,
            width: w, height: selection.y1 });
        $($outer[2]).css({ left: left + selection.x2, top: top,
            width: imgWidth - selection.x2, height: imgHeight });
        $($outer[3]).css({ left: left + selection.x1, top: top + selection.y2,
            width: w, height: imgHeight - selection.y2 });

w -= $handles.outerWidth();
        h -= $handles.outerHeight();

switch ($handles.length) {
        case 8:
            $($handles[4]).css({ left: w >> 1 });
            $($handles[5]).css({ left: w, top: h >> 1 });
            $($handles[6]).css({ left: w >> 1, top: h });
            $($handles[7]).css({ top: h >> 1 });
        case 4:
            $handles.slice(1,3).css({ left: w });
            $handles.slice(2,4).css({ top: h });
        }

if (resetKeyPress !== false) {
            if ($.imgAreaSelect.onKeyPress != docKeyPress)
                $(document).unbind($.imgAreaSelect.keyPress,
                    $.imgAreaSelect.onKeyPress);

if (options.keys)
                $(document)[$.imgAreaSelect.keyPress](
                    $.imgAreaSelect.onKeyPress = docKeyPress);
        }

if (msie && $border.outerWidth() - $border.innerWidth() == 2) {
            $border.css('margin', 0);
            setTimeout(function () { $border.css('margin', 'auto'); }, 0);
        }
    }

function doUpdate(resetKeyPress) {
        adjust();
        update(resetKeyPress);
        x1 = viewX(selection.x1); y1 = viewY(selection.y1);
        x2 = viewX(selection.x2); y2 = viewY(selection.y2);
    }

function hide($elem, fn) {
        options.fadeSpeed ? $elem.fadeOut(options.fadeSpeed, fn) : $elem.hide();

}

function areaMouseMove(event) {
        var x = selX(evX(event)) - selection.x1,
            y = selY(evY(event)) - selection.y1;

if (!adjusted) {
            adjust();
            adjusted = true;

$box.one('mouseout', function () { adjusted = false; });
        }

resize = '';

if (options.resizable) {
            if (y <= options.resizeMargin)
                resize = 'n';
            else if (y >= selection.height - options.resizeMargin)
                resize = 's';
            if (x <= options.resizeMargin)
                resize += 'w';
            else if (x >= selection.width - options.resizeMargin)
                resize += 'e';
        }

$box.css('cursor', resize ? resize + '-resize' :
            options.movable ? 'move' : '');
        if ($areaOpera)
            $areaOpera.toggle();
    }

function docMouseUp(event) {
        $('body').css('cursor', '');
        if (options.autoHide || selection.width * selection.height == 0)
            hide($box.add($outer), function () { $(this).hide(); });

$(document).unbind('mousemove', selectingMouseMove);
        $box.mousemove(areaMouseMove);

options.onSelectEnd(img, getSelection());
    }

function areaMouseDown(event) {
        if (event.which != 1) return false;

adjust();

if (resize) {
            $('body').css('cursor', resize + '-resize');

x1 = viewX(selection[/w/.test(resize) ? 'x2' : 'x1']);
            y1 = viewY(selection[/n/.test(resize) ? 'y2' : 'y1']);

$(document).mousemove(selectingMouseMove)
                .one('mouseup', docMouseUp);
            $box.unbind('mousemove', areaMouseMove);
        }
        else if (options.movable) {
            startX = left + selection.x1 - evX(event);
            startY = top + selection.y1 - evY(event);

$box.unbind('mousemove', areaMouseMove);

$(document).mousemove(movingMouseMove)
                .one('mouseup', function () {
                    options.onSelectEnd(img, getSelection());

$(document).unbind('mousemove', movingMouseMove);
                    $box.mousemove(areaMouseMove);
                });
        }
        else
            $img.mousedown(event);

return false;
    }

function fixAspectRatio(xFirst) {
        if (aspectRatio)
            if (xFirst) {
                x2 = max(left, min(left + imgWidth,
                    x1 + abs(y2 - y1) * aspectRatio * (x2 > x1 || -1)));

y2 = round(max(top, min(top + imgHeight,
                    y1 + abs(x2 - x1) / aspectRatio * (y2 > y1 || -1))));
                x2 = round(x2);
            }
            else {
                y2 = max(top, min(top + imgHeight,
                    y1 + abs(x2 - x1) / aspectRatio * (y2 > y1 || -1)));
                x2 = round(max(left, min(left + imgWidth,
                    x1 + abs(y2 - y1) * aspectRatio * (x2 > x1 || -1))));
                y2 = round(y2);
            }
    }

function doResize() {
        x1 = min(x1, left + imgWidth);
        y1 = min(y1, top + imgHeight);

if (abs(x2 - x1) < minWidth) {
            x2 = x1 - minWidth * (x2 < x1 || -1);

if (x2 < left)
                x1 = left + minWidth;
            else if (x2 > left + imgWidth)
                x1 = left + imgWidth - minWidth;
        }

if (abs(y2 - y1) < minHeight) {
            y2 = y1 - minHeight * (y2 < y1 || -1);

if (y2 < top)
                y1 = top + minHeight;
            else if (y2 > top + imgHeight)
                y1 = top + imgHeight - minHeight;
        }

x2 = max(left, min(x2, left + imgWidth));
        y2 = max(top, min(y2, top + imgHeight));

fixAspectRatio(abs(x2 - x1) < abs(y2 - y1) * aspectRatio);

if (abs(x2 - x1) > maxWidth) {
            x2 = x1 - maxWidth * (x2 < x1 || -1);
            fixAspectRatio();
        }

if (abs(y2 - y1) > maxHeight) {
            y2 = y1 - maxHeight * (y2 < y1 || -1);
            fixAspectRatio(true);
        }

selection = { x1: selX(min(x1, x2)), x2: selX(max(x1, x2)),
            y1: selY(min(y1, y2)), y2: selY(max(y1, y2)),
            width: abs(x2 - x1), height: abs(y2 - y1) };

update();

options.onSelectChange(img, getSelection());
    }

function selectingMouseMove(event) {
        x2 = /w|e|^$/.test(resize) || aspectRatio ? evX(event) : viewX(selection.x2);
        y2 = /n|s|^$/.test(resize) || aspectRatio ? evY(event) : viewY(selection.y2);

doResize();

return false;

}

function doMove(newX1, newY1) {
        x2 = (x1 = newX1) + selection.width;
        y2 = (y1 = newY1) + selection.height;

$.extend(selection, { x1: selX(x1), y1: selY(y1), x2: selX(x2),
            y2: selY(y2) });

update();

options.onSelectChange(img, getSelection());
    }

function movingMouseMove(event) {
        x1 = max(left, min(startX + evX(event), left + imgWidth - selection.width));
        y1 = max(top, min(startY + evY(event), top + imgHeight - selection.height));

doMove(x1, y1);

event.preventDefault();

return false;
    }

function startSelection() {
        $(document).unbind('mousemove', startSelection);
        adjust();

x2 = x1;
        y2 = y1;

doResize();

resize = '';

if (!$outer.is(':visible'))
            $box.add($outer).hide().fadeIn(options.fadeSpeed||0);

shown = true;

$(document).unbind('mouseup', cancelSelection)
            .mousemove(selectingMouseMove).one('mouseup', docMouseUp);
        $box.unbind('mousemove', areaMouseMove);

options.onSelectStart(img, getSelection());
    }

function cancelSelection() {
        $(document).unbind('mousemove', startSelection)
            .unbind('mouseup', cancelSelection);
        hide($box.add($outer));

setSelection(selX(x1), selY(y1), selX(x1), selY(y1));

if (!(this instanceof $.imgAreaSelect)) {
            options.onSelectChange(img, getSelection());
            options.onSelectEnd(img, getSelection());
        }
    }

function imgMouseDown(event) {
        if (event.which != 1 || $outer.is(':animated')) return false;

adjust();
        startX = x1 = evX(event);
        startY = y1 = evY(event);

$(document).mousemove(startSelection).mouseup(cancelSelection);

return false;
    }

function windowResize() {
        doUpdate(false);
    }

function imgLoad() {
        imgLoaded = true;

setOptions(options = $.extend({
            classPrefix: 'imgareaselect',
            movable: true,
            parent: 'body',
            resizable: true,
            resizeMargin: 10,
            onInit: function () {},
            onSelectStart: function () {},
            onSelectChange: function () {},
            onSelectEnd: function () {}
        }, options));

$box.add($outer).css({ visibility: '' });

if (options.show) {
            shown = true;
            adjust();
            update();
            $box.add($outer).hide().fadeIn(options.fadeSpeed||0);
        }

setTimeout(function () { options.onInit(img, getSelection()); }, 0);
    }

var docKeyPress = function(event) {
        var k = options.keys, d, t, key = event.keyCode;

d = !isNaN(k.alt) && (event.altKey || event.originalEvent.altKey) ? k.alt :
            !isNaN(k.ctrl) && event.ctrlKey ? k.ctrl :
            !isNaN(k.shift) && event.shiftKey ? k.shift :
            !isNaN(k.arrows) ? k.arrows : 10;

if (k.arrows == 'resize' || (k.shift == 'resize' && event.shiftKey) ||
            (k.ctrl == 'resize' && event.ctrlKey) ||
            (k.alt == 'resize' && (event.altKey || event.originalEvent.altKey)))
        {
            switch (key) {
            case 37:
                d = -d;
            case 39:
                t = max(x1, x2);
                x1 = min(x1, x2);
                x2 = max(t + d, x1);
                fixAspectRatio();
                break;
            case 38:
                d = -d;
            case 40:
                t = max(y1, y2);
                y1 = min(y1, y2);
                y2 = max(t + d, y1);
                fixAspectRatio(true);
                break;
            default:
                return;
            }

doResize();
        }
        else {
            x1 = min(x1, x2);
            y1 = min(y1, y2);

switch (key) {
            case 37:
                doMove(max(x1 - d, left), y1);
                break;
            case 38:
                doMove(x1, max(y1 - d, top));
                break;
            case 39:
                doMove(x1 + min(d, imgWidth - selX(x2)), y1);
                break;
            case 40:
                doMove(x1, y1 + min(d, imgHeight - selY(y2)));
                break;
            default:
                return;
            }
        }

return false;
    };

function styleOptions($elem, props) {
        for (var option in props)
            if (options[option] !== undefined)
                $elem.css(props[option], options[option]);
    }

function setOptions(newOptions) {
        if (newOptions.parent)
            ($parent = $(newOptions.parent)).append($box.add($outer));

$.extend(options, newOptions);

adjust();

if (newOptions.handles != null) {
            $handles.remove();
            $handles = $([]);

i = newOptions.handles ? newOptions.handles == 'corners' ? 4 : 8 : 0;

while (i--)
                $handles = $handles.add(div());

$handles.addClass(options.classPrefix + '-handle').css({
                position: 'absolute',
                fontSize: 0,
                zIndex: zIndex + 1 || 1
            });

if (!parseInt($handles.css('width')) >= 0)
                $handles.width(5).height(5);

if (o = options.borderWidth)
                $handles.css({ borderWidth: o, borderStyle: 'solid' });

styleOptions($handles, { borderColor1: 'border-color',
                borderColor2: 'background-color',
                borderOpacity: 'opacity' });
        }

scaleX = options.imageWidth / imgWidth || 1;
        scaleY = options.imageHeight / imgHeight || 1;

if (newOptions.x1 != null) {
            setSelection(newOptions.x1, newOptions.y1, newOptions.x2,
                newOptions.y2);
            newOptions.show = !newOptions.hide;
        }

if (newOptions.keys)
            options.keys = $.extend({ shift: 1, ctrl: 'resize' },
                newOptions.keys);

$outer.addClass(options.classPrefix + '-outer');
        $area.addClass(options.classPrefix + '-selection');
        for (i = 0; i++ < 4;)
            $($border[i-1]).addClass(options.classPrefix + '-border' + i);

styleOptions($area, { selectionColor: 'background-color',
            selectionOpacity: 'opacity' });
        styleOptions($border, { borderOpacity: 'opacity',
            borderWidth: 'border-width' });
        styleOptions($outer, { outerColor: 'background-color',
            outerOpacity: 'opacity' });
        if (o = options.borderColor1)
            $($border[0]).css({ borderStyle: 'solid', borderColor: o });
        if (o = options.borderColor2)
            $($border[1]).css({ borderStyle: 'dashed', borderColor: o });

$box.append($area.add($border).add($areaOpera)).append($handles);

if (msie) {
            if (o = ($outer.css('filter')||'').match(/opacity=(\d+)/))
                $outer.css('opacity', o[1]/100);
            if (o = ($border.css('filter')||'').match(/opacity=(\d+)/))
                $border.css('opacity', o[1]/100);
        }

if (newOptions.hide)
            hide($box.add($outer));
        else if (newOptions.show && imgLoaded) {
            shown = true;
            $box.add($outer).fadeIn(options.fadeSpeed||0);
            doUpdate();
        }

aspectRatio = (d = (options.aspectRatio || '').split(/:/))[0] / d[1];

$img.add($outer).unbind('mousedown', imgMouseDown);

if (options.disable || options.enable === false) {
            $box.unbind('mousemove', areaMouseMove).unbind('mousedown', areaMouseDown);
            $(window).unbind('resize', windowResize);
        }
        else {
            if (options.enable || options.disable === false) {
                if (options.resizable || options.movable)
                    $box.mousemove(areaMouseMove).mousedown(areaMouseDown);

$(window).resize(windowResize);
            }

if (!options.persistent)
                $img.add($outer).mousedown(imgMouseDown);
        }

options.enable = options.disable = undefined;
    }

this.remove = function () {
        setOptions({ disable: true });
        $box.add($outer).remove();
    };

this.getOptions = function () { return options; };

this.setOptions = setOptions;

this.getSelection = getSelection;

this.setSelection = setSelection;

this.cancelSelection = cancelSelection;

this.update = doUpdate;

var msie = (/msie ([\w.]+)/i.exec(ua)||[])[1],
        opera = /opera/i.test(ua),
        safari = /webkit/i.test(ua) && !/chrome/i.test(ua);

$p = $img;

while ($p.length) {
        zIndex = max(zIndex,
            !isNaN($p.css('z-index')) ? $p.css('z-index') : zIndex);
        if ($p.css('position') == 'fixed')
            position = 'fixed';

$p = $p.parent(':not(body)');
    }

zIndex = options.zIndex || zIndex;

if (msie)
        $img.attr('unselectable', 'on');

$.imgAreaSelect.keyPress = msie || safari ? 'keydown' : 'keypress';

if (opera)

$areaOpera = div().css({ width: '100%', height: '100%',
            position: 'absolute', zIndex: zIndex + 2 || 2 });

$box.add($outer).css({ visibility: 'hidden', position: position,
        overflow: 'hidden', zIndex: zIndex || '0' });
    $box.css({ zIndex: zIndex + 2 || 2 });
    $area.add($border).css({ position: 'absolute', fontSize: 0 });

img.complete || img.readyState == 'complete' || !$img.is('img') ?
        imgLoad() : $img.one('load', imgLoad);

if (!imgLoaded && msie && msie >= 7)
        img.src = img.src;
};

$.fn.imgAreaSelect = function (options) {
    options = options || {};

this.each(function () {
        if ($(this).data('imgAreaSelect')) {
            if (options.remove) {
                $(this).data('imgAreaSelect').remove();
                $(this).removeData('imgAreaSelect');
            }
            else
                $(this).data('imgAreaSelect').setOptions(options);
        }
        else if (!options.remove) {
            if (options.enable === undefined && options.disable === undefined)
                options.enable = true;

$(this).data('imgAreaSelect', new $.imgAreaSelect(this, options));
        }
    });

if (options.instance)
        return $(this).data('imgAreaSelect');

return this;
};

})(jQuery);

Name	Type	Size	Owner/Group	Permission	Last Modified	Actions
.	dir	-	www-data/www-data	drwxr-sr-x	2023-12-30 01:12:43
..	dir	-	www-data/www-data	drwxr-sr-x	2023-12-30 01:12:43
jquery.imgareaselect.js	text/plain	20.91 KB	www-data/www-data	-rwxr-xr-x	2023-12-30 01:12:43
jquery.imgareaselect.min.js	text/plain	13.56 KB	www-data/www-data	-rwxr-xr-x	2023-12-30 01:12:43
jquery.imgareaselect.pack.js	text/plain	8.11 KB	www-data/www-data	-rwxr-xr-x	2023-12-30 01:12:43
jquery.min.js	text/plain	90.89 KB	www-data/www-data	-rwxr-xr-x	2023-12-30 01:12:43