silverstripe-cms/javascript/ImageEditor/ImageTransformation.js

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JavaScript
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/**
* @author Mateusz
*/
var ImageTransformation = {
initialize: function() {
this.currentOperation = "";
this.currentResponse = new Array();
this.currentCallback = null;
this.resize = ImageTransformation.resize.bind(this);
this.rotate = ImageTransformation.rotate.bind(this);
this.crop = ImageTransformation.crop.bind(this);
this.save = ImageTransformation.save.bind(this);
this.close = ImageTransformation.close.bind(this);
this.onSuccess = ImageTransformation.onSuccess.bind(this);
this.onImageLoad = ImageTransformation.onImageLoad.bind(this);
},
resize: function(width,height,callback,imageAlreadyChangedSize) {
this.currentOperation = "resize";
this.currentCallback = callback;
if(imageHistory.modifiedOriginalImage) {
fileToResize = $('image').src;
} else {
fileToResize = imageEditor.originalImageFile;
}
var options = {
method: 'post',
postBody: 'command=resize&file=' + fileToResize + '&newImageWidth=' + width + '&newImageHeight=' + height,
onSuccess: this.onSuccess
};
if(imageAlreadyChangedSize == false) {
imageBox.showIndicator($('mainContainer'));
} else {
imageBox.showIndicator();
}
new Ajax.Request('admin/ImageEditor/manipulate', options);
},
rotate: function(angle,callback) {
this.currentOperation = "rotate";
this.currentCallback = callback;
var options = {
method: 'post',
postBody: 'command=rotate&file=' + $('image').src + '&angle=' + angle ,
onSuccess: this.onSuccess
};
imageBox.showIndicator();
new Ajax.Request('admin/ImageEditor/manipulate', options);
},
crop: function(top,left,width,height,callback) {
this.currentOperation = "crop";
this.currentCallback = callback;
var options = {
method: 'post',
postBody: 'command=crop&file=' + $('image').src + '&top=' + top + '&left=' + left + '&width=' + width + '&height=' + height,
onSuccess: this.onSuccess
};
imageBox.showIndicator();
new Ajax.Request('admin/ImageEditor/manipulate', options);
},
save: function(originalFile,editedFile,callback) {
var options = {
method: 'post',
postBody: 'command=save&editedFile=' + editedFile + '&originalFile=' + originalFile,
onSuccess: function(transport) {
eval(transport.responseText);
callback();
}
};
new Ajax.Request('admin/ImageEditor/save', options);
},
close: function(callback) {
var options = {
method: 'post',
postBody: '',
onSuccess: function(transport) {
eval(transport.responseText);
callback();
}
};
new Ajax.Request('admin/ImageEditor/close', options);
},
onSuccess: function(transport) {
this.currentResponse = eval('(' + transport.responseText + ')');
$('fakeImg').src = this.currentResponse.fileName;
Event.observe('fakeImg','load',this.onImageLoad);
},
onImageLoad: function(event) {
Event.stopObserving('fakeImg','load', this.onImageLoad);
$('image').src = this.currentResponse.fileName;
imageBox.hideIndicator();
resize.imageContainerResize.originalWidth = this.currentResponse.width;
resize.imageContainerResize.originalHeight = this.currentResponse.height;
$('imageContainer').style.height = this.currentResponse.height + 'px';
$('imageContainer').style.width = this.currentResponse.width + 'px';
$('image').style.height = this.currentResponse.height + 'px';
$('image').style.width = this.currentResponse.width + 'px';
imageHistory.add(this.currentOperation,$('image').src);
if(this.currentCallback != null) this.currentCallback();
}
}