nextcloud/3rdparty/miniColors/js/jquery.miniColors.js

580 lines
16 KiB
JavaScript
Executable File

/*
* jQuery miniColors: A small color selector
*
* Copyright 2011 Cory LaViska for A Beautiful Site, LLC. (http://abeautifulsite.net/)
*
* Dual licensed under the MIT or GPL Version 2 licenses
*
*/
if(jQuery) (function($) {
$.extend($.fn, {
miniColors: function(o, data) {
var create = function(input, o, data) {
//
// Creates a new instance of the miniColors selector
//
// Determine initial color (defaults to white)
var color = expandHex(input.val());
if( !color ) color = 'ffffff';
var hsb = hex2hsb(color);
// Create trigger
var trigger = $('<a class="miniColors-trigger" style="background-color: #' + color + '" href="#"></a>');
trigger.insertAfter(input);
// Set input data and update attributes
input
.addClass('miniColors')
.data('original-maxlength', input.attr('maxlength') || null)
.data('original-autocomplete', input.attr('autocomplete') || null)
.data('letterCase', 'uppercase')
.data('trigger', trigger)
.data('hsb', hsb)
.data('change', o.change ? o.change : null)
.data('close', o.close ? o.close : null)
.data('open', o.open ? o.open : null)
.attr('maxlength', 7)
.attr('autocomplete', 'off')
.val('#' + convertCase(color, o.letterCase));
// Handle options
if( o.readonly ) input.prop('readonly', true);
if( o.disabled ) disable(input);
// Show selector when trigger is clicked
trigger.bind('click.miniColors', function(event) {
event.preventDefault();
if( input.val() === '' ) input.val('#');
show(input);
});
// Show selector when input receives focus
input.bind('focus.miniColors', function(event) {
if( input.val() === '' ) input.val('#');
show(input);
});
// Hide on blur
input.bind('blur.miniColors', function(event) {
var hex = expandHex( hsb2hex(input.data('hsb')) );
input.val( hex ? '#' + convertCase(hex, input.data('letterCase')) : '' );
});
// Hide when tabbing out of the input
input.bind('keydown.miniColors', function(event) {
if( event.keyCode === 9 ) hide(input);
});
// Update when color is typed in
input.bind('keyup.miniColors', function(event) {
setColorFromInput(input);
});
// Handle pasting
input.bind('paste.miniColors', function(event) {
// Short pause to wait for paste to complete
setTimeout( function() {
setColorFromInput(input);
}, 5);
});
};
var destroy = function(input) {
//
// Destroys an active instance of the miniColors selector
//
hide();
input = $(input);
// Restore to original state
input.data('trigger').remove();
input
.attr('autocomplete', input.data('original-autocomplete'))
.attr('maxlength', input.data('original-maxlength'))
.removeData()
.removeClass('miniColors')
.unbind('.miniColors');
$(document).unbind('.miniColors');
};
var enable = function(input) {
//
// Enables the input control and the selector
//
input
.prop('disabled', false)
.data('trigger')
.css('opacity', 1);
};
var disable = function(input) {
//
// Disables the input control and the selector
//
hide(input);
input
.prop('disabled', true)
.data('trigger')
.css('opacity', 0.5);
};
var show = function(input) {
//
// Shows the miniColors selector
//
if( input.prop('disabled') ) return false;
// Hide all other instances
hide();
// Generate the selector
var selector = $('<div class="miniColors-selector"></div>');
selector
.append('<div class="miniColors-colors" style="background-color: #FFF;"><div class="miniColors-colorPicker"><div class="miniColors-colorPicker-inner"></div></div>')
.append('<div class="miniColors-hues"><div class="miniColors-huePicker"></div></div>')
.css({
top: input.is(':visible') ? input.offset().top + input.outerHeight() : input.data('trigger').offset().top + input.data('trigger').outerHeight(),
left: input.is(':visible') ? input.offset().left : input.data('trigger').offset().left,
display: 'none'
})
.addClass( input.attr('class') );
// Set background for colors
var hsb = input.data('hsb');
selector
.find('.miniColors-colors')
.css('backgroundColor', '#' + hsb2hex({ h: hsb.h, s: 100, b: 100 }));
// Set colorPicker position
var colorPosition = input.data('colorPosition');
if( !colorPosition ) colorPosition = getColorPositionFromHSB(hsb);
selector.find('.miniColors-colorPicker')
.css('top', colorPosition.y + 'px')
.css('left', colorPosition.x + 'px');
// Set huePicker position
var huePosition = input.data('huePosition');
if( !huePosition ) huePosition = getHuePositionFromHSB(hsb);
selector.find('.miniColors-huePicker').css('top', huePosition.y + 'px');
// Set input data
input
.data('selector', selector)
.data('huePicker', selector.find('.miniColors-huePicker'))
.data('colorPicker', selector.find('.miniColors-colorPicker'))
.data('mousebutton', 0);
$('BODY').append(selector);
selector.fadeIn(100);
// Prevent text selection in IE
selector.bind('selectstart', function() { return false; });
$(document).bind('mousedown.miniColors touchstart.miniColors', function(event) {
input.data('mousebutton', 1);
var testSubject = $(event.target).parents().andSelf();
if( testSubject.hasClass('miniColors-colors') ) {
event.preventDefault();
input.data('moving', 'colors');
moveColor(input, event);
}
if( testSubject.hasClass('miniColors-hues') ) {
event.preventDefault();
input.data('moving', 'hues');
moveHue(input, event);
}
if( testSubject.hasClass('miniColors-selector') ) {
event.preventDefault();
return;
}
if( testSubject.hasClass('miniColors') ) return;
hide(input);
});
$(document)
.bind('mouseup.miniColors touchend.miniColors', function(event) {
event.preventDefault();
input.data('mousebutton', 0).removeData('moving');
})
.bind('mousemove.miniColors touchmove.miniColors', function(event) {
event.preventDefault();
if( input.data('mousebutton') === 1 ) {
if( input.data('moving') === 'colors' ) moveColor(input, event);
if( input.data('moving') === 'hues' ) moveHue(input, event);
}
});
// Fire open callback
if( input.data('open') ) {
input.data('open').call(input.get(0), '#' + hsb2hex(hsb), hsb2rgb(hsb));
}
};
var hide = function(input) {
//
// Hides one or more miniColors selectors
//
// Hide all other instances if input isn't specified
if( !input ) input = '.miniColors';
$(input).each( function() {
var selector = $(this).data('selector');
$(this).removeData('selector');
$(selector).fadeOut(100, function() {
// Fire close callback
if( input.data('close') ) {
var hsb = input.data('hsb'), hex = hsb2hex(hsb);
input.data('close').call(input.get(0), '#' + hex, hsb2rgb(hsb));
}
$(this).remove();
});
});
$(document).unbind('.miniColors');
};
var moveColor = function(input, event) {
var colorPicker = input.data('colorPicker');
colorPicker.hide();
var position = {
x: event.pageX,
y: event.pageY
};
// Touch support
if( event.originalEvent.changedTouches ) {
position.x = event.originalEvent.changedTouches[0].pageX;
position.y = event.originalEvent.changedTouches[0].pageY;
}
position.x = position.x - input.data('selector').find('.miniColors-colors').offset().left - 5;
position.y = position.y - input.data('selector').find('.miniColors-colors').offset().top - 5;
if( position.x <= -5 ) position.x = -5;
if( position.x >= 144 ) position.x = 144;
if( position.y <= -5 ) position.y = -5;
if( position.y >= 144 ) position.y = 144;
input.data('colorPosition', position);
colorPicker.css('left', position.x).css('top', position.y).show();
// Calculate saturation
var s = Math.round((position.x + 5) * 0.67);
if( s < 0 ) s = 0;
if( s > 100 ) s = 100;
// Calculate brightness
var b = 100 - Math.round((position.y + 5) * 0.67);
if( b < 0 ) b = 0;
if( b > 100 ) b = 100;
// Update HSB values
var hsb = input.data('hsb');
hsb.s = s;
hsb.b = b;
// Set color
setColor(input, hsb, true);
};
var moveHue = function(input, event) {
var huePicker = input.data('huePicker');
huePicker.hide();
var position = {
y: event.pageY
};
// Touch support
if( event.originalEvent.changedTouches ) {
position.y = event.originalEvent.changedTouches[0].pageY;
}
position.y = position.y - input.data('selector').find('.miniColors-colors').offset().top - 1;
if( position.y <= -1 ) position.y = -1;
if( position.y >= 149 ) position.y = 149;
input.data('huePosition', position);
huePicker.css('top', position.y).show();
// Calculate hue
var h = Math.round((150 - position.y - 1) * 2.4);
if( h < 0 ) h = 0;
if( h > 360 ) h = 360;
// Update HSB values
var hsb = input.data('hsb');
hsb.h = h;
// Set color
setColor(input, hsb, true);
};
var setColor = function(input, hsb, updateInput) {
input.data('hsb', hsb);
var hex = hsb2hex(hsb);
if( updateInput ) input.val( '#' + convertCase(hex, input.data('letterCase')) );
input.data('trigger').css('backgroundColor', '#' + hex);
if( input.data('selector') ) input.data('selector').find('.miniColors-colors').css('backgroundColor', '#' + hsb2hex({ h: hsb.h, s: 100, b: 100 }));
// Fire change callback
if( input.data('change') ) {
if( hex === input.data('lastChange') ) return;
input.data('change').call(input.get(0), '#' + hex, hsb2rgb(hsb));
input.data('lastChange', hex);
}
};
var setColorFromInput = function(input) {
input.val('#' + cleanHex(input.val()));
var hex = expandHex(input.val());
if( !hex ) return false;
// Get HSB equivalent
var hsb = hex2hsb(hex);
// If color is the same, no change required
var currentHSB = input.data('hsb');
if( hsb.h === currentHSB.h && hsb.s === currentHSB.s && hsb.b === currentHSB.b ) return true;
// Set colorPicker position
var colorPosition = getColorPositionFromHSB(hsb);
var colorPicker = $(input.data('colorPicker'));
colorPicker.css('top', colorPosition.y + 'px').css('left', colorPosition.x + 'px');
input.data('colorPosition', colorPosition);
// Set huePosition position
var huePosition = getHuePositionFromHSB(hsb);
var huePicker = $(input.data('huePicker'));
huePicker.css('top', huePosition.y + 'px');
input.data('huePosition', huePosition);
setColor(input, hsb);
return true;
};
var convertCase = function(string, letterCase) {
if( letterCase === 'lowercase' ) return string.toLowerCase();
if( letterCase === 'uppercase' ) return string.toUpperCase();
return string;
};
var getColorPositionFromHSB = function(hsb) {
var x = Math.ceil(hsb.s / 0.67);
if( x < 0 ) x = 0;
if( x > 150 ) x = 150;
var y = 150 - Math.ceil(hsb.b / 0.67);
if( y < 0 ) y = 0;
if( y > 150 ) y = 150;
return { x: x - 5, y: y - 5 };
};
var getHuePositionFromHSB = function(hsb) {
var y = 150 - (hsb.h / 2.4);
if( y < 0 ) h = 0;
if( y > 150 ) h = 150;
return { y: y - 1 };
};
var cleanHex = function(hex) {
return hex.replace(/[^A-F0-9]/ig, '');
};
var expandHex = function(hex) {
hex = cleanHex(hex);
if( !hex ) return null;
if( hex.length === 3 ) hex = hex[0] + hex[0] + hex[1] + hex[1] + hex[2] + hex[2];
return hex.length === 6 ? hex : null;
};
var hsb2rgb = function(hsb) {
var rgb = {};
var h = Math.round(hsb.h);
var s = Math.round(hsb.s*255/100);
var v = Math.round(hsb.b*255/100);
if(s === 0) {
rgb.r = rgb.g = rgb.b = v;
} else {
var t1 = v;
var t2 = (255 - s) * v / 255;
var t3 = (t1 - t2) * (h % 60) / 60;
if( h === 360 ) h = 0;
if( h < 60 ) { rgb.r = t1; rgb.b = t2; rgb.g = t2 + t3; }
else if( h < 120 ) {rgb.g = t1; rgb.b = t2; rgb.r = t1 - t3; }
else if( h < 180 ) {rgb.g = t1; rgb.r = t2; rgb.b = t2 + t3; }
else if( h < 240 ) {rgb.b = t1; rgb.r = t2; rgb.g = t1 - t3; }
else if( h < 300 ) {rgb.b = t1; rgb.g = t2; rgb.r = t2 + t3; }
else if( h < 360 ) {rgb.r = t1; rgb.g = t2; rgb.b = t1 - t3; }
else { rgb.r = 0; rgb.g = 0; rgb.b = 0; }
}
return {
r: Math.round(rgb.r),
g: Math.round(rgb.g),
b: Math.round(rgb.b)
};
};
var rgb2hex = function(rgb) {
var hex = [
rgb.r.toString(16),
rgb.g.toString(16),
rgb.b.toString(16)
];
$.each(hex, function(nr, val) {
if (val.length === 1) hex[nr] = '0' + val;
});
return hex.join('');
};
var hex2rgb = function(hex) {
hex = parseInt(((hex.indexOf('#') > -1) ? hex.substring(1) : hex), 16);
return {
r: hex >> 16,
g: (hex & 0x00FF00) >> 8,
b: (hex & 0x0000FF)
};
};
var rgb2hsb = function(rgb) {
var hsb = { h: 0, s: 0, b: 0 };
var min = Math.min(rgb.r, rgb.g, rgb.b);
var max = Math.max(rgb.r, rgb.g, rgb.b);
var delta = max - min;
hsb.b = max;
hsb.s = max !== 0 ? 255 * delta / max : 0;
if( hsb.s !== 0 ) {
if( rgb.r === max ) {
hsb.h = (rgb.g - rgb.b) / delta;
} else if( rgb.g === max ) {
hsb.h = 2 + (rgb.b - rgb.r) / delta;
} else {
hsb.h = 4 + (rgb.r - rgb.g) / delta;
}
} else {
hsb.h = -1;
}
hsb.h *= 60;
if( hsb.h < 0 ) {
hsb.h += 360;
}
hsb.s *= 100/255;
hsb.b *= 100/255;
return hsb;
};
var hex2hsb = function(hex) {
var hsb = rgb2hsb(hex2rgb(hex));
// Zero out hue marker for black, white, and grays (saturation === 0)
if( hsb.s === 0 ) hsb.h = 360;
return hsb;
};
var hsb2hex = function(hsb) {
return rgb2hex(hsb2rgb(hsb));
};
// Handle calls to $([selector]).miniColors()
switch(o) {
case 'readonly':
$(this).each( function() {
if( !$(this).hasClass('miniColors') ) return;
$(this).prop('readonly', data);
});
return $(this);
case 'disabled':
$(this).each( function() {
if( !$(this).hasClass('miniColors') ) return;
if( data ) {
disable($(this));
} else {
enable($(this));
}
});
return $(this);
case 'value':
// Getter
if( data === undefined ) {
if( !$(this).hasClass('miniColors') ) return;
var input = $(this),
hex = expandHex(input.val());
return hex ? '#' + convertCase(hex, input.data('letterCase')) : null;
}
// Setter
$(this).each( function() {
if( !$(this).hasClass('miniColors') ) return;
$(this).val(data);
setColorFromInput($(this));
});
return $(this);
case 'destroy':
$(this).each( function() {
if( !$(this).hasClass('miniColors') ) return;
destroy($(this));
});
return $(this);
default:
if( !o ) o = {};
$(this).each( function() {
// Must be called on an input element
if( $(this)[0].tagName.toLowerCase() !== 'input' ) return;
// If a trigger is present, the control was already created
if( $(this).data('trigger') ) return;
// Create the control
create($(this), o, data);
});
return $(this);
}
}
});
})(jQuery);