powerdns-admin/app/static/admin/pages/scripts/form-image-crop.js
2015-12-13 16:34:12 +07:00

527 lines
17 KiB
JavaScript

var FormImageCrop = function () {
var demo1 = function() {
$('#demo1').Jcrop();
}
var demo2 = function() {
var jcrop_api;
$('#demo2').Jcrop({
onChange: showCoords,
onSelect: showCoords,
onRelease: clearCoords
},function(){
jcrop_api = this;
});
$('#coords').on('change','input',function(e){
var x1 = $('#x1').val(),
x2 = $('#x2').val(),
y1 = $('#y1').val(),
y2 = $('#y2').val();
jcrop_api.setSelect([x1,y1,x2,y2]);
});
// Simple event handler, called from onChange and onSelect
// event handlers, as per the Jcrop invocation above
function showCoords(c)
{
$('#x1').val(c.x);
$('#y1').val(c.y);
$('#x2').val(c.x2);
$('#y2').val(c.y2);
$('#w').val(c.w);
$('#h').val(c.h);
};
function clearCoords()
{
$('#coords input').val('');
};
}
var demo3 = function() {
// Create variables (in this scope) to hold the API and image size
var jcrop_api,
boundx,
boundy,
// Grab some information about the preview pane
$preview = $('#preview-pane'),
$pcnt = $('#preview-pane .preview-container'),
$pimg = $('#preview-pane .preview-container img'),
xsize = $pcnt.width(),
ysize = $pcnt.height();
console.log('init',[xsize,ysize]);
$('#demo3').Jcrop({
onChange: updatePreview,
onSelect: updatePreview,
aspectRatio: xsize / ysize
},function(){
// Use the API to get the real image size
var bounds = this.getBounds();
boundx = bounds[0];
boundy = bounds[1];
// Store the API in the jcrop_api variable
jcrop_api = this;
// Move the preview into the jcrop container for css positioning
$preview.appendTo(jcrop_api.ui.holder);
});
function updatePreview(c)
{
if (parseInt(c.w) > 0)
{
var rx = xsize / c.w;
var ry = ysize / c.h;
$pimg.css({
width: Math.round(rx * boundx) + 'px',
height: Math.round(ry * boundy) + 'px',
marginLeft: '-' + Math.round(rx * c.x) + 'px',
marginTop: '-' + Math.round(ry * c.y) + 'px'
});
}
};
}
var demo4 = function() {
var jcrop_api;
$('#demo4').Jcrop({
bgFade: true,
bgOpacity: .2,
setSelect: [ 60, 70, 540, 330 ]
},function(){
jcrop_api = this;
});
$('#fadetog').change(function(){
jcrop_api.setOptions({
bgFade: this.checked
});
}).attr('checked', true);
Metronic.updateUniform('#fadetog');
$('#shadetog').change(function(){
if (this.checked) $('#shadetxt').slideDown();
else $('#shadetxt').slideUp();
jcrop_api.setOptions({
shade: this.checked
});
}).attr('checked', false);
// Define page sections
var sections = {
bgc_buttons: 'Change bgColor',
bgo_buttons: 'Change bgOpacity',
anim_buttons: 'Animate Selection'
};
// Define animation buttons
var ac = {
anim1: [217,122,382,284],
anim2: [20,20,580,380],
anim3: [24,24,176,376],
anim4: [347,165,550,355],
anim5: [136,55,472,183]
};
// Define bgOpacity buttons
var bgo = {
Low: .2,
Mid: .5,
High: .8,
Full: 1
};
// Define bgColor buttons
var bgc = {
R: '#900',
B: '#4BB6F0',
Y: '#F0B207',
G: '#46B81C',
W: 'white',
K: 'black'
};
// Create fieldset targets for buttons
for(i in sections)
insertSection(i,sections[i]);
function create_btn(c) {
var $o = $('<button />').addClass('btn small');
if (c) $o.append(c);
return $o;
}
var a_count = 1;
// Create animation buttons
for(i in ac) {
$('#anim_buttons .btn-group')
.append(
create_btn(a_count++).click(animHandler(ac[i])),
' '
);
}
$('#anim_buttons .btn-group').append(
create_btn('Bye!').click(function(e){
$(e.target).addClass('active');
jcrop_api.animateTo(
[300,200,300,200],
function(){
this.release();
$(e.target).closest('.btn-group').find('.active').removeClass('active');
}
);
return false;
})
);
// Create bgOpacity buttons
for(i in bgo) {
$('#bgo_buttons .btn-group').append(
create_btn(i).click(setoptHandler('bgOpacity',bgo[i])),
' '
);
}
// Create bgColor buttons
for(i in bgc) {
$('#bgc_buttons .btn-group').append(
create_btn(i).css({
background: bgc[i],
color: ((i == 'K') || (i == 'R'))?'white':'black'
}).click(setoptHandler('bgColor',bgc[i])), ' '
);
}
// Function to insert named sections into interface
function insertSection(k,v) {
$('#interface').prepend(
$('<fieldset></fieldset>').attr('id',k).append(
$('<h4></h4>').append(v),
'<div class="btn-toolbar"><div class="btn-group"></div></div>'
)
);
};
// Handler for option-setting buttons
function setoptHandler(k,v) {
return function(e) {
$(e.target).closest('.btn-group').find('.active').removeClass('active');
$(e.target).addClass('active');
var opt = { };
opt[k] = v;
jcrop_api.setOptions(opt);
return false;
};
};
// Handler for animation buttons
function animHandler(v) {
return function(e) {
$(e.target).addClass('active');
jcrop_api.animateTo(v,function(){
$(e.target).closest('.btn-group').find('.active').removeClass('active');
});
return false;
};
};
$('#bgo_buttons .btn:first,#bgc_buttons .btn:last').addClass('active');
$('#interface').show();
}
var demo5 = function() {
// The variable jcrop_api will hold a reference to the
// Jcrop API once Jcrop is instantiated.
var jcrop_api;
// In this example, since Jcrop may be attached or detached
// at the whim of the user, I've wrapped the call into a function
initJcrop();
// The function is pretty simple
function initJcrop()//{{{
{
// Hide any interface elements that require Jcrop
// (This is for the local user interface portion.)
$('.requiresjcrop').hide();
// Invoke Jcrop in typical fashion
$('#demo5').Jcrop({
onRelease: releaseCheck
},function(){
jcrop_api = this;
jcrop_api.animateTo([100,100,400,300]);
// Setup and dipslay the interface for "enabled"
$('#can_click,#can_move,#can_size').attr('checked','checked');
Metronic.updateUniform('#can_click,#can_move,#can_size');
$('#ar_lock,#size_lock,#bg_swap').attr('checked',false);
Metronic.updateUniform('#ar_lock,#size_lock,#bg_swap');
$('.requiresjcrop').show();
});
};
//}}}
// Use the API to find cropping dimensions
// Then generate a random selection
// This function is used by setSelect and animateTo buttons
// Mainly for demonstration purposes
function getRandom() {
var dim = jcrop_api.getBounds();
return [
Math.round(Math.random() * dim[0]),
Math.round(Math.random() * dim[1]),
Math.round(Math.random() * dim[0]),
Math.round(Math.random() * dim[1])
];
};
// This function is bound to the onRelease handler...
// In certain circumstances (such as if you set minSize
// and aspectRatio together), you can inadvertently lose
// the selection. This callback re-enables creating selections
// in such a case. Although the need to do this is based on a
// buggy behavior, it's recommended that you in some way trap
// the onRelease callback if you use allowSelect: false
function releaseCheck()
{
jcrop_api.setOptions({ allowSelect: true });
$('#can_click').attr('checked',false);
Metronic.updateUniform('#can_click');
};
// Attach interface buttons
// This may appear to be a lot of code but it's simple stuff
$('#setSelect').click(function(e) {
// Sets a random selection
jcrop_api.setSelect(getRandom());
});
$('#animateTo').click(function(e) {
// Animates to a random selection
jcrop_api.animateTo(getRandom());
});
$('#release').click(function(e) {
// Release method clears the selection
jcrop_api.release();
});
$('#disable').click(function(e) {
// Disable Jcrop instance
jcrop_api.disable();
// Update the interface to reflect disabled state
$('#enable').show();
$('.requiresjcrop').hide();
});
$('#enable').click(function(e) {
// Re-enable Jcrop instance
jcrop_api.enable();
// Update the interface to reflect enabled state
$('#enable').hide();
$('.requiresjcrop').show();
});
$('#rehook').click(function(e) {
// This button is visible when Jcrop has been destroyed
// It performs the re-attachment and updates the UI
$('#rehook,#enable').hide();
initJcrop();
$('#unhook,.requiresjcrop').show();
return false;
});
$('#unhook').click(function(e) {
// Destroy Jcrop widget, restore original state
jcrop_api.destroy();
// Update the interface to reflect un-attached state
$('#unhook,#enable,.requiresjcrop').hide();
$('#rehook').show();
return false;
});
// Hook up the three image-swapping buttons
$('#img1').click(function(e) {
$(this).addClass('active').closest('.btn-group')
.find('button.active').not(this).removeClass('active');
jcrop_api.setImage('../../assets/global/plugins/jcrop/demos/demo_files/sago.jpg');
jcrop_api.setOptions({ bgOpacity: .6 });
return false;
});
$('#img2').click(function(e) {
$(this).addClass('active').closest('.btn-group')
.find('button.active').not(this).removeClass('active');
jcrop_api.setImage('../../assets/global/plugins/jcrop/demos/demo_files/pool.jpg');
jcrop_api.setOptions({ bgOpacity: .6 });
return false;
});
$('#img3').click(function(e) {
$(this).addClass('active').closest('.btn-group')
.find('button.active').not(this).removeClass('active');
jcrop_api.setImage('../../assets/global/plugins/jcrop/demos/demo_files/sago.jpg',function(){
this.setOptions({
bgOpacity: 1,
outerImage: '../../assets/global/plugins/jcrop/demos/demo_files/sagomod.jpg'
});
this.animateTo(getRandom());
});
return false;
});
// The checkboxes simply set options based on it's checked value
// Options are changed by passing a new options object
// Also, to prevent strange behavior, they are initially checked
// This matches the default initial state of Jcrop
$('#can_click').change(function(e) {
jcrop_api.setOptions({ allowSelect: !!this.checked });
jcrop_api.focus();
});
$('#can_move').change(function(e) {
jcrop_api.setOptions({ allowMove: !!this.checked });
jcrop_api.focus();
});
$('#can_size').change(function(e) {
jcrop_api.setOptions({ allowResize: !!this.checked });
jcrop_api.focus();
});
$('#ar_lock').change(function(e) {
jcrop_api.setOptions(this.checked?
{ aspectRatio: 4/3 }: { aspectRatio: 0 });
jcrop_api.focus();
});
$('#size_lock').change(function(e) {
jcrop_api.setOptions(this.checked? {
minSize: [ 80, 80 ],
maxSize: [ 350, 350 ]
}: {
minSize: [ 0, 0 ],
maxSize: [ 0, 0 ]
});
jcrop_api.focus();
});
}
var demo6 = function() {
var api;
$('#demo6').Jcrop({
// start off with jcrop-light class
bgOpacity: 0.5,
bgColor: 'white',
addClass: 'jcrop-light'
},function(){
api = this;
api.setSelect([130,65,130+350,65+285]);
api.setOptions({ bgFade: true });
api.ui.selection.addClass('jcrop-selection');
});
$('#buttonbar').on('click','button',function(e){
var $t = $(this), $g = $t.closest('.btn-group');
$g.find('button.active').removeClass('active');
$t.addClass('active');
$g.find('[data-setclass]').each(function(){
var $th = $(this), c = $th.data('setclass'),
a = $th.hasClass('active');
if (a) {
api.ui.holder.addClass(c);
switch(c){
case 'jcrop-light':
api.setOptions({ bgColor: 'white', bgOpacity: 0.5 });
break;
case 'jcrop-dark':
api.setOptions({ bgColor: 'black', bgOpacity: 0.4 });
break;
case 'jcrop-normal':
api.setOptions({
bgColor: $.Jcrop.defaults.bgColor,
bgOpacity: $.Jcrop.defaults.bgOpacity
});
break;
}
}
else api.ui.holder.removeClass(c);
});
});
}
var demo7 = function() {
// I did JSON.stringify(jcrop_api.tellSelect()) on a crop I liked:
var c = {"x":13,"y":7,"x2":487,"y2":107,"w":474,"h":100};
$('#demo7').Jcrop({
bgFade: true,
setSelect: [c.x,c.y,c.x2,c.y2]
});
}
var demo8 = function() {
$('#demo8').Jcrop({
aspectRatio: 1,
onSelect: updateCoords
});
function updateCoords(c)
{
$('#crop_x').val(c.x);
$('#crop_y').val(c.y);
$('#crop_w').val(c.w);
$('#crop_h').val(c.h);
};
$('#demo8_form').submit(function(){
if (parseInt($('#crop_w').val())) return true;
alert('Please select a crop region then press submit.');
return false;
});
}
var handleResponsive = function() {
if ($(window).width() <= 1024 && $(window).width() >= 678) {
$('.responsive-1024').each(function(){
$(this).attr("data-class", $(this).attr("class"));
$(this).attr("class", 'responsive-1024 col-md-12');
});
} else {
$('.responsive-1024').each(function(){
if ($(this).attr("data-class")) {
$(this).attr("class", $(this).attr("data-class"));
$(this).removeAttr("data-class");
}
});
}
}
return {
//main function to initiate the module
init: function () {
if (!jQuery().Jcrop) {;
return;
}
Metronic.addResizeHandler(handleResponsive);
handleResponsive();
demo1();
demo2();
demo3();
demo4();
demo5();
demo6();
demo7();
demo8();
}
};
}();