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fabric.js/test/unit/canvas_static.js
Andrea Bogazzi 77dab21155 Additional method for centering objects (#3044)
2016-06-11 14:10:20 +02:00

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(function() {
// var emptyImageCanvasData = "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAfQAAAH0CAYAAADL1t+KAAAH7ElEQVR4nO3VMQ0AMAzAsPInvYHoMS2yEeTLHADge/M6AADYM3QACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIMHQACDB0AAgwdAAIuMjH4b7osLFBAAAAAElFTkSuQmCC";
var CANVAS_SVG = '<?xml version="1.0" encoding="UTF-8" standalone="no" ?>\n<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">\n'+
'<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" width="600" height="600" viewBox="0 0 600 600" xml:space="preserve">\n<desc>Created with Fabric.js ' + fabric.version + '</desc>\n<defs></defs>\n</svg>';
var CANVAS_SVG_VIEWBOX = '<?xml version="1.0" encoding="UTF-8" standalone="no" ?>\n<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">\n'+
'<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" width="600" height="600" viewBox="100 100 300 300" xml:space="preserve">\n<desc>Created with Fabric.js ' + fabric.version + '</desc>\n<defs></defs>\n</svg>';
var PATH_JSON = '{"objects": [{"type": "path", "originX": "left", "originY": "top", "left": 268, "top": 266, "width": 51, "height": 49,'+
' "fill": "rgb(0,0,0)", "stroke": null, "strokeWidth": 1, "scaleX": 1, "scaleY": 1, '+
'"angle": 0, "flipX": false, "flipY": false, "opacity": 1, "path": [["M", 18.511, 13.99],'+
' ["c", 0, 0, -2.269, -4.487, -12.643, 4.411], ["c", 0, 0, 4.824, -14.161, 19.222, -9.059],'+
' ["l", 0.379, -2.1], ["c", -0.759, -0.405, -1.375, -1.139, -1.645, -2.117], ["c", -0.531, '+
'-1.864, 0.371, -3.854, 1.999, -4.453], ["c", 0.312, -0.118, 0.633, -0.169, 0.953, -0.169], '+
'["c", 1.299, 0, 2.514, 0.953, 2.936, 2.455], ["c", 0.522, 1.864, -0.372, 3.854, -1.999, '+
'4.453], ["c", -0.229, 0.084, -0.464, 0.127, -0.692, 0.152], ["l", -0.379, 2.37], ["c", '+
'1.146, 0.625, 2.024, 1.569, 2.674, 2.758], ["c", 3.213, 2.514, 8.561, 4.184, 11.774, -8.232],'+
' ["c", 0, 0, 0.86, 16.059, -12.424, 14.533], ["c", 0.008, 2.859, 0.615, 5.364, -0.076, 8.224],'+
' ["c", 8.679, 3.146, 15.376, 14.389, 17.897, 18.168], ["l", 2.497, -2.151], ["l", 1.206, 1.839],'+
' ["l", -3.889, 3.458], ["C", 46.286, 48.503, 31.036, 32.225, 22.72, 35.81], ["c", -1.307, 2.851,'+
' -3.56, 6.891, -7.481, 8.848], ["c", -4.689, 2.336, -9.084, -0.802, -11.277, -2.868], ["l",'+
' -1.948, 3.104], ["l", -1.628, -1.333], ["l", 3.138, -4.689], ["c", 0.025, 0, 9, 1.932, 9, 1.932], '+
'["c", 0.877, -9.979, 2.893, -12.905, 4.942, -15.621], ["C", 17.878, 21.775, 18.713, 17.397, 18.511, '+
'13.99], ["z", null]]}], "background": "#ff5555", "overlay":"rgba(0,0,0,0.2)"}';
var PATH_DATALESS_JSON = '{"objects":[{"type":"path","originX":"left","originY":"top","left":100,"top":100,"width":200,"height":200,"fill":"rgb(0,0,0)",'+
'"stroke":null,"strokeWidth":1,"strokeDashArray":null,"strokeLineCap":"butt","strokeLineJoin":"miter","strokeMiterLimit":10,'+
'"scaleX":1,"scaleY":1,"angle":0,"flipX":false,"flipY":false,"opacity":1,'+
'"shadow":null,"visible":true,"clipTo":null,"backgroundColor":"","fillRule":"nonzero","globalCompositeOperation":"source-over","transformMatrix":null,"skewX":0,"skewY":0,"path":"http://example.com/","pathOffset":{"x":200,"y":200}}],"background":""}';
var RECT_JSON = '{"objects":[{"type":"rect","originX":"left","originY":"top","left":0,"top":0,"width":10,"height":10,"fill":"rgb(0,0,0)",'+
'"stroke":null,"strokeWidth":1,"strokeDashArray":null,"strokeLineCap":"butt","strokeLineJoin":"miter","strokeMiterLimit":10,'+
'"scaleX":1,"scaleY":1,"angle":0,"flipX":false,"flipY":false,"opacity":1,'+
'"shadow":null,"visible":true,"clipTo":null,"backgroundColor":"","fillRule":"nonzero","globalCompositeOperation":"source-over","transformMatrix":null,"skewX":0,"skewY":0,"rx":0,"ry":0}],"background":"#ff5555","overlay":"rgba(0,0,0,0.2)"}';
var RECT_JSON_WITH_PADDING = '{"objects":[{"type":"rect","originX":"left","originY":"top","left":0,"top":0,"width":10,"height":20,"fill":"rgb(0,0,0)",'+
'"stroke":null,"strokeWidth":1,"strokeDashArray":null,"strokeLineCap":"butt","strokeLineJoin":"miter","strokeMiterLimit":10,'+
'"scaleX":1,"scaleY":1,"angle":0,"flipX":false,"flipY":false,"opacity":1,'+
'"shadow":null,"visible":true,"clipTo":null,"backgroundColor":"","fillRule":"nonzero","globalCompositeOperation":"source-over","transformMatrix":null,"skewX":0,"skewY":0,"padding":123,"foo":"bar","rx":0,"ry":0}],"background":""}';
function getAbsolutePath(path) {
var isAbsolute = /^https?:/.test(path);
if (isAbsolute) return path;
var imgEl = _createImageElement();
imgEl.src = path;
var src = imgEl.src;
imgEl = null;
return src;
}
var IMG_SRC = fabric.isLikelyNode ? (__dirname + '/../fixtures/test_image.gif') : getAbsolutePath('../fixtures/test_image.gif'),
IMG_WIDTH = 276,
IMG_HEIGHT = 110;
var REFERENCE_IMG_OBJECT = {
'type': 'image',
'originX': 'left',
'originY': 'top',
'left': 0,
'top': 0,
'width': IMG_WIDTH, // node-canvas doesn't seem to allow setting width/height on image objects
'height': IMG_HEIGHT, // or does it now?
'fill': 'rgb(0,0,0)',
'stroke': null,
'strokeWidth': 0,
'strokeDashArray': null,
'strokeLineCap': 'butt',
'strokeLineJoin': 'miter',
'strokeMiterLimit': 10,
'scaleX': 1,
'scaleY': 1,
'angle': 0,
'flipX': false,
'flipY': false,
'opacity': 1,
'src': fabric.isLikelyNode ? undefined : IMG_SRC,
'shadow': null,
'visible': true,
'backgroundColor': '',
'clipTo': null,
'filters': [],
'resizeFilters': [],
'fillRule': 'nonzero',
'globalCompositeOperation': 'source-over',
'transformMatrix': null,
'crossOrigin': '',
'skewX': 0,
'skewY': 0,
'alignX': 'none',
'alignY': 'none',
'meetOrSlice': 'meet'
};
function _createImageElement() {
return fabric.isLikelyNode ? new (require('canvas').Image)() : fabric.document.createElement('img');
}
function _createImageObject(width, height, callback) {
var elImage = _createImageElement();
elImage.width = width;
elImage.height = height;
setSrc(elImage, IMG_SRC, function() {
callback(new fabric.Image(elImage));
});
}
function createImageObject(callback) {
return _createImageObject(IMG_WIDTH, IMG_HEIGHT, callback);
}
function setSrc(img, src, callback) {
if (fabric.isLikelyNode) {
require('fs').readFile(src, function(err, imgData) {
if (err) throw err;
img.src = imgData;
callback && callback();
});
}
else {
img.src = src;
callback && callback();
}
}
function fixImageDimension(imgObj) {
// workaround for node-canvas sometimes producing images with width/height and sometimes not
if (imgObj.width === 0) {
imgObj.width = IMG_WIDTH;
}
if (imgObj.height === 0) {
imgObj.height = IMG_HEIGHT;
}
}
// force creation of static canvas
// TODO: fix this
var Canvas = fabric.Canvas;
fabric.Canvas = null;
var el = fabric.document.createElement('canvas');
el.width = 600; el.height = 600;
var canvas = this.canvas = fabric.isLikelyNode ? fabric.createCanvasForNode() : new fabric.StaticCanvas(el),
canvas2 = this.canvas2 = fabric.isLikelyNode ? fabric.createCanvasForNode() : new fabric.StaticCanvas(el);
fabric.Canvas = Canvas;
var lowerCanvasEl = canvas.lowerCanvasEl;
function makeRect(options) {
var defaultOptions = { width: 10, height: 10 };
return new fabric.Rect(fabric.util.object.extend(defaultOptions, options || { }));
}
QUnit.module('fabric.StaticCanvas', {
setup: function() {
canvas.clear();
canvas.backgroundColor = fabric.StaticCanvas.prototype.backgroundColor;
canvas.backgroundImage = fabric.StaticCanvas.prototype.backgroundImage;
canvas.overlayColor = fabric.StaticCanvas.prototype.overlayColor;
canvas.controlsAboveOverlay = fabric.StaticCanvas.prototype.controlsAboveOverlay;
canvas.preserveObjectStacking = fabric.StaticCanvas.prototype.preserveObjectStacking;
canvas.viewportTransform = fabric.StaticCanvas.prototype.viewportTransform;
canvas.calcOffset();
}
});
test('initialProperties', function() {
ok('backgroundColor' in canvas);
ok('overlayColor' in canvas);
ok('backgroundImage' in canvas);
ok('overlayImage' in canvas);
ok('clipTo' in canvas);
equal(canvas.includeDefaultValues, true);
equal(canvas.stateful, true);
equal(canvas.renderOnAddRemove, true);
equal(canvas.controlsAboveOverlay, false);
equal(canvas.imageSmoothingEnabled, true);
notStrictEqual(canvas.viewportTransform, canvas2.viewportTransform);
});
test('getObjects', function() {
ok(typeof canvas.getObjects == 'function', 'should respond to `getObjects` method');
deepEqual([], canvas.getObjects(), 'should return empty array for `getObjects` when empty');
equal(canvas.getObjects().length, 0, 'should have a 0 length when empty');
});
test('getObjects with type', function() {
var rect = new fabric.Rect({ width: 10, height: 20 });
var circle = new fabric.Circle({ radius: 30 });
canvas.add(rect, circle);
equal(canvas.getObjects().length, 2, 'should have length=2 initially');
deepEqual(canvas.getObjects('rect'), [rect], 'should return rect only');
deepEqual(canvas.getObjects('circle'), [circle], 'should return circle only');
});
test('getElement', function() {
ok(typeof canvas.getElement == 'function', 'should respond to `getElement` method');
equal(canvas.getElement(), lowerCanvasEl, 'should return a proper element');
});
test('item', function() {
var rect = makeRect();
ok(typeof canvas.item == 'function', 'should respond to item');
canvas.add(rect);
equal(canvas.item(0), rect, 'should return proper item');
});
test('calcOffset', function() {
ok(typeof canvas.calcOffset == 'function', 'should respond to `calcOffset`');
equal(canvas.calcOffset(), canvas, 'should be chainable');
});
test('add', function() {
var rect1 = makeRect(),
rect2 = makeRect(),
rect3 = makeRect(),
rect4 = makeRect();
ok(typeof canvas.add == 'function');
equal(canvas.add(rect1), canvas, 'should be chainable');
strictEqual(canvas.item(0), rect1);
canvas.add(rect2, rect3, rect4);
equal(canvas.getObjects().length, 4, 'should support multiple arguments');
strictEqual(canvas.item(1), rect2);
strictEqual(canvas.item(2), rect3);
strictEqual(canvas.item(3), rect4);
});
test('add renderOnAddRemove disabled', function() {
var rect = makeRect(),
originalRenderOnAddition,
renderAllCount = 0;
function countRenderAll() {
renderAllCount++;
}
originalRenderOnAddition = canvas.renderOnAddRemove;
canvas.renderOnAddRemove = false;
canvas.on('after:render', countRenderAll);
equal(canvas.add(rect), canvas, 'should be chainable');
equal(renderAllCount, 0);
equal(canvas.item(0), rect);
canvas.add(makeRect(), makeRect(), makeRect());
equal(canvas.getObjects().length, 4, 'should support multiple arguments');
equal(renderAllCount, 0);
canvas.renderAll();
equal(renderAllCount, 1);
canvas.off('after:render', countRenderAll);
canvas.renderOnAddRemove = originalRenderOnAddition;
});
test('object:added', function() {
var objectsAdded = [];
canvas.on('object:added', function(e) {
objectsAdded.push(e.target);
});
var rect = new fabric.Rect({ width: 10, height: 20 });
canvas.add(rect);
deepEqual(objectsAdded[0], rect);
var circle1 = new fabric.Circle(),
circle2 = new fabric.Circle();
canvas.add(circle1, circle2);
strictEqual(objectsAdded[1], circle1);
strictEqual(objectsAdded[2], circle2);
var circle3 = new fabric.Circle();
canvas.insertAt(circle3, 2);
strictEqual(objectsAdded[3], circle3);
});
test('insertAt', function() {
var rect1 = makeRect(),
rect2 = makeRect();
canvas.add(rect1, rect2);
ok(typeof canvas.insertAt == 'function', 'should respond to `insertAt` method');
var rect = makeRect();
canvas.insertAt(rect, 1);
strictEqual(canvas.item(1), rect);
canvas.insertAt(rect, 2);
strictEqual(canvas.item(2), rect);
equal(canvas.insertAt(rect, 2), canvas, 'should be chainable');
});
test('insertAt renderOnAddRemove disabled', function() {
var rect1 = makeRect(),
rect2 = makeRect(),
originalRenderOnAddition,
renderAllCount = 0;
function countRenderAll() {
renderAllCount++;
}
originalRenderOnAddition = canvas.renderOnAddRemove;
canvas.renderOnAddRemove = false;
canvas.on('after:render', countRenderAll);
canvas.add(rect1, rect2);
equal(renderAllCount, 0);
var rect = makeRect();
canvas.insertAt(rect, 1);
equal(renderAllCount, 0);
strictEqual(canvas.item(1), rect);
canvas.insertAt(rect, 2);
equal(renderAllCount, 0);
canvas.renderAll();
equal(renderAllCount, 1);
canvas.off('after:render', countRenderAll);
canvas.renderOnAddRemove = originalRenderOnAddition;
});
test('remove', function() {
var rect1 = makeRect(),
rect2 = makeRect(),
rect3 = makeRect(),
rect4 = makeRect();
canvas.add(rect1, rect2, rect3, rect4);
ok(typeof canvas.remove == 'function');
equal(canvas.remove(rect1), canvas, 'should be chainable');
strictEqual(canvas.item(0), rect2, 'should be second object');
canvas.remove(rect2, rect3);
strictEqual(canvas.item(0), rect4);
canvas.remove(rect4);
equal(canvas.isEmpty(), true, 'canvas should be empty');
});
test('remove renderOnAddRemove disabled', function() {
var rect1 = makeRect(),
rect2 = makeRect(),
originalRenderOnAddition,
renderAllCount = 0;
function countRenderAll() {
renderAllCount++;
}
originalRenderOnAddition = canvas.renderOnAddRemove;
canvas.renderOnAddRemove = false;
canvas.on('after:render', countRenderAll);
canvas.add(rect1, rect2);
equal(renderAllCount, 0);
equal(canvas.remove(rect1), canvas, 'should be chainable');
equal(renderAllCount, 0);
strictEqual(canvas.item(0), rect2, 'only second object should be left');
canvas.renderAll();
equal(renderAllCount, 1);
canvas.off('after:render', countRenderAll);
canvas.renderOnAddRemove = originalRenderOnAddition;
});
test('object:removed', function() {
var objectsRemoved = [];
canvas.on('object:removed', function(e) {
objectsRemoved.push(e.target);
});
var rect = new fabric.Rect({ width: 10, height: 20 }),
circle1 = new fabric.Circle(),
circle2 = new fabric.Circle();
canvas.add(rect, circle1, circle2);
strictEqual(canvas.item(0), rect);
strictEqual(canvas.item(1), circle1);
strictEqual(canvas.item(2), circle2);
canvas.remove(rect);
strictEqual(objectsRemoved[0], rect);
canvas.remove(circle1, circle2);
strictEqual(objectsRemoved[1], circle1);
strictEqual(objectsRemoved[2], circle2);
equal(canvas.isEmpty(), true, 'canvas should be empty');
});
test('clearContext', function() {
ok(typeof canvas.clearContext == 'function');
equal(canvas.clearContext(canvas.contextContainer), canvas, 'should be chainable');
});
test('clear', function() {
ok(typeof canvas.clear == 'function');
equal(canvas.clear(), canvas, 'should be chainable');
equal(canvas.getObjects().length, 0);
});
test('renderAll', function() {
ok(typeof canvas.renderAll == 'function');
equal(canvas, canvas.renderAll());
});
test('preserveObjectStacking', function() {
ok(typeof canvas.preserveObjectStacking == 'boolean');
ok(!canvas.preserveObjectStacking);
});
test('renderTop', function() {
ok(typeof canvas.renderTop == 'function');
equal(canvas, canvas.renderTop());
});
test('toDataURL', function() {
ok(typeof canvas.toDataURL == 'function');
if (!fabric.Canvas.supports('toDataURL')) {
window.alert("toDataURL is not supported by this environment. Some of the tests can not be run.");
}
else {
var rect = new fabric.Rect({width: 100, height: 100, fill:'red', top: 0, left: 0});
canvas.add(rect);
var dataURL = canvas.toDataURL();
// don't compare actual data url, as it is often browser-dependent
// this.assertIdentical(emptyImageCanvasData, canvas.toDataURL('png'));
equal(typeof dataURL, 'string');
equal(dataURL.substring(0, 21), 'data:image/png;base64');
//we can just compare that the dataUrl generated differs from the dataURl of an empty canvas.
equal(dataURL.substring(200, 210) != 'AAAAAAAAAA', true);
}
});
test('toDataURL jpg', function() {
if (!fabric.Canvas.supports('toDataURL')) {
window.alert("toDataURL is not supported by this environment. Some of the tests can not be run.");
}
else {
try {
var dataURL = canvas.toDataURL({ format: 'jpg' });
equal(dataURL.substring(0, 22), 'data:image/jpeg;base64');
}
// node-canvas does not support jpeg data urls
catch(err) {
ok(true);
}
}
});
test('centerObjectH', function() {
ok(typeof canvas.centerObjectH == 'function');
var rect = makeRect({ left: 102, top: 202 });
canvas.add(rect);
equal(canvas.centerObjectH(rect), canvas, 'should be chainable');
equal(rect.getCenterPoint().x, canvas.width / 2, 'object\'s "center.y" property should correspond to canvas element\'s center');
canvas.setZoom(4);
equal(rect.getCenterPoint().x, canvas.height / 2, 'object\'s "center.x" property should correspond to canvas element\'s center when canvas is transformed');
});
test('centerObjectV', function() {
ok(typeof canvas.centerObjectV == 'function');
var rect = makeRect({ left: 102, top: 202 });
canvas.add(rect);
equal(canvas.centerObjectV(rect), canvas, 'should be chainable');
equal(rect.getCenterPoint().y, canvas.height / 2, 'object\'s "center.y" property should correspond to canvas element\'s center');
canvas.setZoom(2);
equal(rect.getCenterPoint().y, canvas.height / 2, 'object\'s "center.y" property should correspond to canvas element\'s center when canvas is transformed');
});
test('centerObject', function() {
ok(typeof canvas.centerObject == 'function');
var rect = makeRect({ left: 102, top: 202 });
canvas.add(rect);
equal(canvas.centerObject(rect), canvas, 'should be chainable');
equal(rect.getCenterPoint().y, canvas.height / 2, 'object\'s "center.y" property should correspond to canvas element\'s center');
equal(rect.getCenterPoint().x, canvas.height / 2, 'object\'s "center.x" property should correspond to canvas element\'s center');
canvas.setZoom(4);
equal(rect.getCenterPoint().y, canvas.height / 2, 'object\'s "center.y" property should correspond to canvas element\'s center when canvas is transformed');
equal(rect.getCenterPoint().x, canvas.height / 2, 'object\'s "center.x" property should correspond to canvas element\'s center when canvas is transformed');
});
test('viewportCenterObjectH', function() {
ok(typeof canvas.viewportCenterObjectH == 'function');
var rect = makeRect({ left: 102, top: 202 }), pan = 10;
canvas.viewportTransform = [1, 0, 0, 1, 0, 0];
canvas.add(rect);
var oldY = rect.top;
equal(canvas.viewportCenterObjectH(rect), canvas, 'should be chainable');
equal(rect.getCenterPoint().x, canvas.width / 2, 'object\'s "center.x" property should correspond to canvas element\'s center when canvas is not transformed');
equal(rect.top, oldY, 'object\'s "top" should not change');
canvas.setZoom(2);
canvas.viewportCenterObjectH(rect);
equal(rect.getCenterPoint().x, canvas.width / (2 * canvas.getZoom()), 'object\'s "center.x" property should correspond to viewport center');
equal(rect.top, oldY, 'object\'s "top" should not change');
canvas.absolutePan({x: pan, y: pan});
canvas.viewportCenterObjectH(rect);
equal(rect.getCenterPoint().x, (canvas.width / 2 + pan) / canvas.getZoom(), 'object\'s "center.x" property should correspond to viewport center');
equal(rect.top, oldY, 'object\'s "top" should not change');
});
test('viewportCenterObjectV', function() {
ok(typeof canvas.viewportCenterObjectV == 'function');
var rect = makeRect({ left: 102, top: 202 }), pan = 10;
canvas.viewportTransform = [1, 0, 0, 1, 0, 0];
canvas.add(rect);
var oldX = rect.left;
equal(canvas.viewportCenterObjectV(rect), canvas, 'should be chainable');
equal(rect.getCenterPoint().y, canvas.height / 2, 'object\'s "center.y" property should correspond to canvas element\'s center when canvas is not transformed');
equal(rect.left, oldX, 'x position did not change');
canvas.setZoom(2);
canvas.viewportCenterObjectV(rect);
equal(rect.getCenterPoint().y, canvas.height / (2 * canvas.getZoom()), 'object\'s "center.y" property should correspond to viewport center');
equal(rect.left, oldX, 'x position did not change');
canvas.absolutePan({x: pan, y: pan});
canvas.viewportCenterObjectV(rect);
equal(rect.getCenterPoint().y, (canvas.height / 2 + pan) / canvas.getZoom(), 'object\'s "top" property should correspond to viewport center');
equal(rect.left, oldX, 'x position did not change');
});
test('viewportCenterObject', function() {
ok(typeof canvas.viewportCenterObject == 'function');
var rect = makeRect({ left: 102, top: 202 }), pan = 10;
canvas.viewportTransform = [1, 0, 0, 1, 0, 0];
canvas.add(rect);
equal(canvas.viewportCenterObject(rect), canvas, 'should be chainable');
equal(rect.getCenterPoint().y, canvas.height / 2, 'object\'s "center.y" property should correspond to canvas element\'s center when canvas is not transformed');
equal(rect.getCenterPoint().x, canvas.width / 2, 'object\'s "center.x" property should correspond to canvas element\'s center when canvas is not transformed');
canvas.setZoom(2);
canvas.viewportCenterObject(rect);
equal(rect.getCenterPoint().y, canvas.height / (2 * canvas.getZoom()), 'object\'s "center.y" property should correspond to viewport center');
equal(rect.getCenterPoint().x, canvas.width / (2 * canvas.getZoom()), 'object\'s "center.x" property should correspond to viewport center');
canvas.absolutePan({x: pan, y: pan});
canvas.viewportCenterObject(rect);
equal(rect.getCenterPoint().y, (canvas.height / 2 + pan) / canvas.getZoom(), 'object\'s "center.y" property should correspond to viewport center');
equal(rect.getCenterPoint().x, (canvas.width / 2 + pan) / canvas.getZoom(), 'object\'s "center.x" property should correspond to viewport center');
canvas.viewportTransform = [1, 0, 0, 1, 0, 0];
});
test('straightenObject', function() {
ok(typeof canvas.straightenObject == 'function');
var rect = makeRect({ angle: 10 });
canvas.add(rect);
equal(canvas.straightenObject(rect), canvas, 'should be chainable');
equal(rect.getAngle(), 0, 'angle should be coerced to 0 (from 10)');
rect.setAngle('60');
canvas.straightenObject(rect);
equal(rect.getAngle(), 90, 'angle should be coerced to 90 (from 60)');
rect.setAngle('100');
canvas.straightenObject(rect);
equal(rect.getAngle(), 90, 'angle should be coerced to 90 (from 100)');
});
test('toSVG', function() {
ok(typeof canvas.toSVG == 'function');
canvas.clear();
canvas.viewportTransform = [1, 0, 0, 1, 0, 0];
var svg = canvas.toSVG();
equal(svg, CANVAS_SVG);
});
test('toSVG with different encoding (ISO-8859-1)', function() {
ok(typeof canvas.toSVG == 'function');
canvas.clear();
canvas.viewportTransform = [1, 0, 0, 1, 0, 0];
var svg = canvas.toSVG({encoding: 'ISO-8859-1'});
var svgDefaultEncoding = canvas.toSVG();
ok(svg != svgDefaultEncoding);
equal(svg, CANVAS_SVG.replace('encoding="UTF-8"', 'encoding="ISO-8859-1"'));
});
test('toSVG without preamble', function() {
ok(typeof canvas.toSVG == 'function');
var withPreamble = canvas.toSVG();
var withoutPreamble = canvas.toSVG({suppressPreamble: true});
ok(withPreamble != withoutPreamble);
equal(withoutPreamble.slice(0, 4), '<svg', 'svg should start with root node when premable is suppressed');
});
test('toSVG with viewBox', function() {
ok(typeof canvas.toSVG == 'function');
canvas.clear();
var svg = canvas.toSVG({viewBox: {x: 100, y: 100, width: 300, height: 300}});
equal(svg, CANVAS_SVG_VIEWBOX);
});
test('toSVG with reviver', function() {
ok(typeof canvas.toSVG == 'function');
canvas.clear();
var circle = new fabric.Circle(),
rect = new fabric.Rect(),
path1 = new fabric.Path('M 100 100 L 300 100 L 200 300 z'),
tria = new fabric.Triangle(),
polygon = new fabric.Polygon([{x: 10, y: 12},{x: 20, y: 22}]),
polyline = new fabric.Polyline([{x: 10, y: 12},{x: 20, y: 22}]),
line = new fabric.Line(),
text = new fabric.Text('Text'),
group = new fabric.Group([text, line]),
ellipse = new fabric.Ellipse(),
image = new fabric.Image({width: 0, height: 0}),
path2 = new fabric.Path('M 0 0 L 200 100 L 200 300 z'),
path3 = new fabric.Path('M 50 50 L 100 300 L 400 400 z'),
pathGroup = new fabric.PathGroup([path2, path3]);
canvas.renderOnAddRemove = false;
canvas.add(circle, rect, path1, tria, polygon, polyline, group, ellipse, image, pathGroup);
var reviverCount = 0,
len = canvas.size() + group.size() + pathGroup.paths.length;
function reviver(svg) {
reviverCount++;
return svg;
}
canvas.toSVG(null, reviver);
equal(reviverCount, len);
canvas.renderOnAddRemove = true;
});
test('toSVG with reviver', function() {
ok(typeof canvas.toSVG == 'function');
canvas.clear();
var circle = new fabric.Circle(),
rect = new fabric.Rect(),
path1 = new fabric.Path('M 100 100 L 300 100 L 200 300 z'),
tria = new fabric.Triangle(),
polygon = new fabric.Polygon([{x: 10, y: 12},{x: 20, y: 22}]),
polyline = new fabric.Polyline([{x: 10, y: 12},{x: 20, y: 22}]),
line = new fabric.Line(),
text = new fabric.Text('Text'),
group = new fabric.Group([text, line]),
ellipse = new fabric.Ellipse(),
image = new fabric.Image({width: 0, height: 0}),
imageBG = new fabric.Image({width: 0, height: 0}),
imageOL = new fabric.Image({width: 0, height: 0}),
path2 = new fabric.Path('M 0 0 L 200 100 L 200 300 z'),
path3 = new fabric.Path('M 50 50 L 100 300 L 400 400 z'),
pathGroup = new fabric.PathGroup([path2, path3]);
canvas.renderOnAddRemove = false;
canvas.add(circle, rect, path1, tria, polygon, polyline, group, ellipse, image, pathGroup);
canvas.setBackgroundImage(imageBG);
canvas.setOverlayImage(imageOL);
var reviverCount = 0,
len = canvas.size() + group.size() + pathGroup.paths.length;
function reviver(svg) {
reviverCount++;
return svg;
}
canvas.toSVG(null, reviver);
equal(reviverCount, len + 2, 'reviver should include background and overlay image');
canvas.setBackgroundImage(null);
canvas.setOverlayImage(null);
canvas.renderOnAddRemove = true;
});
test('toSVG with exclude from export', function() {
ok(typeof canvas.toSVG == 'function');
canvas.clear();
var circle = new fabric.Circle({excludeFromExport: true}),
rect = new fabric.Rect({excludeFromExport: true}),
path1 = new fabric.Path('M 100 100 L 300 100 L 200 300 z'),
tria = new fabric.Triangle(),
polygon = new fabric.Polygon([{x: 10, y: 12},{x: 20, y: 22}]),
polyline = new fabric.Polyline([{x: 10, y: 12},{x: 20, y: 22}]),
line = new fabric.Line(),
text = new fabric.Text('Text'),
group = new fabric.Group([text, line]),
ellipse = new fabric.Ellipse(),
image = new fabric.Image({width: 0, height: 0}),
path2 = new fabric.Path('M 0 0 L 200 100 L 200 300 z'),
path3 = new fabric.Path('M 50 50 L 100 300 L 400 400 z'),
pathGroup = new fabric.PathGroup([path2, path3]);
canvas.renderOnAddRemove = false;
canvas.add(circle, rect, path1, tria, polygon, polyline, group, ellipse, image, pathGroup);
var reviverCount = 0,
len = canvas.size() + group.size() + pathGroup.paths.length;
function reviver(svg) {
reviverCount++;
return svg;
}
canvas.toSVG(null, reviver);
equal(reviverCount, len - 2, 'reviver should not include objects with excludeFromExport');
canvas.renderOnAddRemove = true;
});
test('toJSON', function() {
ok(typeof canvas.toJSON == 'function');
equal(JSON.stringify(canvas.toJSON()), '{"objects":[],"background":""}');
canvas.backgroundColor = '#ff5555';
canvas.overlayColor = 'rgba(0,0,0,0.2)';
equal(JSON.stringify(canvas.toJSON()), '{"objects":[],"background":"#ff5555","overlay":"rgba(0,0,0,0.2)"}', '`background` and `overlay` value should be reflected in json');
canvas.add(makeRect());
deepEqual(JSON.stringify(canvas.toJSON()), RECT_JSON);
});
test('toJSON custom properties non-existence check', function() {
var rect = new fabric.Rect({ width: 10, height: 20 });
rect.padding = 123;
canvas.add(rect);
rect.foo = 'bar';
canvas.bar = 456;
var data = canvas.toJSON(['padding', 'foo', 'bar', 'baz']);
ok('padding' in data.objects[0]);
ok('foo' in data.objects[0], 'foo shouldn\'t be included if it\'s not in an object');
ok(!('bar' in data.objects[0]), 'bar shouldn\'t be included if it\'s not in an object');
ok(!('baz' in data.objects[0]), 'bar shouldn\'t be included if it\'s not in an object');
ok(!('foo' in data));
ok(!('baz' in data));
ok('bar' in data);
});
asyncTest('toJSON backgroundImage', function() {
createImageObject(function(image) {
canvas.backgroundImage = image;
var json = canvas.toJSON();
fixImageDimension(json.backgroundImage);
deepEqual(json.backgroundImage, REFERENCE_IMG_OBJECT);
canvas.backgroundImage = null;
start();
});
});
asyncTest('toJSON overlayImage', function() {
createImageObject(function(image) {
canvas.overlayImage = image;
var json = canvas.toJSON();
fixImageDimension(json.overlayImage);
deepEqual(json.overlayImage, REFERENCE_IMG_OBJECT);
canvas.overlayImage = null;
start();
});
});
test('toDatalessJSON', function() {
var path = new fabric.Path('M 100 100 L 300 100 L 200 300 z', {
sourcePath: 'http://example.com/'
});
canvas.add(path);
equal(JSON.stringify(canvas.toDatalessJSON()), PATH_DATALESS_JSON);
});
test('toObject', function() {
ok(typeof canvas.toObject == 'function');
var expectedObject = {
background: canvas.backgroundColor,
objects: canvas.getObjects()
};
deepEqual(expectedObject, canvas.toObject());
var rect = makeRect();
canvas.add(rect);
equal(canvas.toObject().objects[0].type, rect.type);
});
test('toObject excludeFromExport', function() {
var rect = makeRect(), rect2 = makeRect(), rect3 = makeRect();
canvas.clear();
canvas.add(rect, rect2, rect3);
equal(canvas.toObject().objects.length, 3, 'all objects get exported');
rect.excludeFromExport = true;
rect2.excludeFromExport = true;
equal(canvas.toObject().objects.length, 1, 'only one object gets exported');
});
test('toDatalessObject', function() {
ok(typeof canvas.toDatalessObject == 'function');
var expectedObject = {
background: canvas.backgroundColor,
objects: canvas.getObjects()
};
deepEqual(expectedObject, canvas.toDatalessObject());
var rect = makeRect();
canvas.add(rect);
equal(canvas.toObject().objects[0].type, rect.type);
// TODO (kangax): need to test this method with fabric.Path to ensure that path is not populated
});
test('toObject with additional properties', function() {
canvas.freeDrawingColor = 'red';
canvas.foobar = 123;
var expectedObject = {
background: canvas.backgroundColor,
objects: canvas.getObjects(),
freeDrawingColor: 'red',
foobar: 123
};
deepEqual(expectedObject, canvas.toObject(['freeDrawingColor', 'foobar']));
var rect = makeRect();
canvas.add(rect);
ok(!('rotatingPointOffset' in canvas.toObject(['smthelse']).objects[0]));
ok('rotatingPointOffset' in canvas.toObject(['rotatingPointOffset']).objects[0]);
});
test('isEmpty', function() {
ok(typeof canvas.isEmpty == 'function');
ok(canvas.isEmpty());
canvas.add(makeRect());
ok(!canvas.isEmpty());
});
test('loadFromJSON with json string', function() {
ok(typeof canvas.loadFromJSON == 'function');
canvas.loadFromJSON(PATH_JSON, function(){
var obj = canvas.item(0);
ok(!canvas.isEmpty(), 'canvas is not empty');
equal(obj.type, 'path', 'first object is a path object');
equal(canvas.backgroundColor, '#ff5555', 'backgroundColor is populated properly');
equal(obj.get('left'), 268);
equal(obj.get('top'), 266);
equal(obj.get('width'), 49.803999999999995);
equal(obj.get('height'), 48.027);
equal(obj.get('fill'), 'rgb(0,0,0)');
equal(obj.get('stroke'), null);
equal(obj.get('strokeWidth'), 1);
equal(obj.get('scaleX'), 1);
equal(obj.get('scaleY'), 1);
equal(obj.get('angle'), 0);
equal(obj.get('flipX'), false);
equal(obj.get('flipY'), false);
equal(obj.get('opacity'), 1);
ok(obj.get('path').length > 0);
});
});
test('loadFromJSON with json object', function() {
ok(typeof canvas.loadFromJSON == 'function');
canvas.loadFromJSON(JSON.parse(PATH_JSON), function(){
var obj = canvas.item(0);
ok(!canvas.isEmpty(), 'canvas is not empty');
equal(obj.type, 'path', 'first object is a path object');
equal(canvas.backgroundColor, '#ff5555', 'backgroundColor is populated properly');
equal(canvas.overlayColor, 'rgba(0,0,0,0.2)', 'overlayColor is populated properly');
equal(obj.get('left'), 268);
equal(obj.get('top'), 266);
equal(obj.get('width'), 49.803999999999995);
equal(obj.get('height'), 48.027);
equal(obj.get('fill'), 'rgb(0,0,0)');
equal(obj.get('stroke'), null);
equal(obj.get('strokeWidth'), 1);
equal(obj.get('scaleX'), 1);
equal(obj.get('scaleY'), 1);
equal(obj.get('angle'), 0);
equal(obj.get('flipX'), false);
equal(obj.get('flipY'), false);
equal(obj.get('opacity'), 1);
ok(obj.get('path').length > 0);
});
});
test('loadFromJSON with custom properties on Canvas with no async object', function() {
var serialized = JSON.parse(PATH_JSON);
serialized.controlsAboveOverlay = true;
serialized.preserveObjectStacking = true;
equal(canvas.controlsAboveOverlay, fabric.Canvas.prototype.controlsAboveOverlay);
equal(canvas.preserveObjectStacking, fabric.Canvas.prototype.preserveObjectStacking);
canvas.loadFromJSON(serialized, function() {
ok(!canvas.isEmpty(), 'canvas is not empty');
equal(canvas.controlsAboveOverlay, true);
equal(canvas.preserveObjectStacking, true);
});
// if no async object the callback is called syncronously
equal(canvas.controlsAboveOverlay, true);
equal(canvas.preserveObjectStacking, true);
});
asyncTest('loadFromJSON with custom properties on Canvas with image', function() {
var JSON_STRING = '{"objects":[{"type":"image","originX":"left","originY":"top","left":13.6,"top":-1.4,"width":3000,"height":3351,"fill":"rgb(0,0,0)","stroke":null,"strokeWidth":0,"strokeDashArray":null,"strokeLineCap":"butt","strokeLineJoin":"miter","strokeMiterLimit":10,"scaleX":0.05,"scaleY":0.05,"angle":0,"flipX":false,"flipY":false,"opacity":1,"shadow":null,"visible":true,"clipTo":null,"backgroundColor":"","fillRule":"nonzero","globalCompositeOperation":"source-over","transformMatrix":null,"skewX":0,"skewY":0,"src":"' + IMG_SRC + '","filters":[],"crossOrigin":"","alignX":"none","alignY":"none","meetOrSlice":"meet"}],'
+ '"background":"green"}';
var serialized = JSON.parse(JSON_STRING);
serialized.controlsAboveOverlay = true;
serialized.preserveObjectStacking = true;
equal(canvas.controlsAboveOverlay, fabric.Canvas.prototype.controlsAboveOverlay);
equal(canvas.preserveObjectStacking, fabric.Canvas.prototype.preserveObjectStacking);
canvas.loadFromJSON(serialized, function() {
ok(!canvas.isEmpty(), 'canvas is not empty');
equal(canvas.controlsAboveOverlay, true);
equal(canvas.preserveObjectStacking, true);
start();
});
// before callback the properties are still false.
equal(canvas.controlsAboveOverlay, false);
equal(canvas.preserveObjectStacking, false);
});
asyncTest('loadFromJSON with image background and color', function() {
var serialized = JSON.parse(PATH_JSON);
serialized.background = 'green';
serialized.backgroundImage = JSON.parse('{"type":"image","originX":"left","originY":"top","left":13.6,"top":-1.4,"width":3000,"height":3351,"fill":"rgb(0,0,0)","stroke":null,"strokeWidth":0,"strokeDashArray":null,"strokeLineCap":"butt","strokeLineJoin":"miter","strokeMiterLimit":10,"scaleX":0.05,"scaleY":0.05,"angle":0,"flipX":false,"flipY":false,"opacity":1,"shadow":null,"visible":true,"clipTo":null,"backgroundColor":"","fillRule":"nonzero","globalCompositeOperation":"source-over","transformMatrix":null,"skewX":0,"skewY":0,"src":"' + IMG_SRC + '","filters":[],"crossOrigin":"","alignX":"none","alignY":"none","meetOrSlice":"meet"}');
canvas.loadFromJSON(serialized, function() {
ok(!canvas.isEmpty(), 'canvas is not empty');
equal(canvas.backgroundColor, 'green');
ok(canvas.backgroundImage instanceof fabric.Image);
start();
});
});
test('loadFromJSON custom properties', function() {
var rect = new fabric.Rect({ width: 10, height: 20 });
rect.padding = 123;
rect.foo = "bar";
canvas.add(rect);
var jsonWithoutFoo = JSON.stringify(canvas.toJSON(['padding']));
var jsonWithFoo = JSON.stringify(canvas.toJSON(['padding', 'foo']));
equal(jsonWithFoo, RECT_JSON_WITH_PADDING);
ok(jsonWithoutFoo !== RECT_JSON_WITH_PADDING);
canvas.clear();
canvas.loadFromJSON(jsonWithFoo, function() {
var obj = canvas.item(0);
equal(obj.padding, 123, 'padding on object is set properly');
equal(obj.foo, 'bar', '"foo" property on object is set properly');
});
});
asyncTest('loadFromJSON with text', function() {
var json = '{"objects":[{"type":"text","left":150,"top":200,"width":128,"height":64.32,"fill":"#000000","stroke":"","strokeWidth":"","scaleX":0.8,"scaleY":0.8,"angle":0,"flipX":false,"flipY":false,"opacity":1,"text":"NAME HERE","fontSize":24,"fontWeight":"","fontFamily":"Delicious_500","fontStyle":"","lineHeight":"","textDecoration":"","textAlign":"center","path":"","strokeStyle":"","backgroundColor":""}],"background":"#ffffff"}';
canvas.loadFromJSON(json, function() {
canvas.renderAll();
equal('text', canvas.item(0).type);
equal(150, canvas.item(0).left);
equal(200, canvas.item(0).top);
equal('NAME HERE', canvas.item(0).text);
start();
});
});
test('sendToBack', function() {
ok(typeof canvas.sendToBack == 'function');
var rect1 = makeRect(),
rect2 = makeRect(),
rect3 = makeRect();
canvas.add(rect1, rect2, rect3);
canvas.sendToBack(rect3);
equal(canvas.item(0), rect3, 'third should now be the first one');
canvas.sendToBack(rect2);
equal(canvas.item(0), rect2, 'second should now be the first one');
canvas.sendToBack(rect2);
equal(canvas.item(0), rect2, 'second should *still* be the first one');
});
test('bringToFront', function() {
ok(typeof canvas.bringToFront == 'function');
var rect1 = makeRect(),
rect2 = makeRect(),
rect3 = makeRect();
canvas.add(rect1, rect2, rect3);
canvas.bringToFront(rect1);
equal(canvas.item(2), rect1, 'first should now be the last one');
canvas.bringToFront(rect2);
equal(canvas.item(2), rect2, 'second should now be the last one');
canvas.bringToFront(rect2);
equal(canvas.item(2), rect2, 'second should *still* be the last one');
});
test('sendBackwards', function() {
ok(typeof canvas.sendBackwards == 'function');
var rect1 = makeRect(),
rect2 = makeRect(),
rect3 = makeRect();
canvas.add(rect1, rect2, rect3);
// [ 1, 2, 3 ]
equal(canvas.item(0), rect1);
equal(canvas.item(1), rect2);
equal(canvas.item(2), rect3);
canvas.sendBackwards(rect3);
// moved 3 one level back — [1, 3, 2]
equal(canvas.item(0), rect1);
equal(canvas.item(2), rect2);
equal(canvas.item(1), rect3);
canvas.sendBackwards(rect3);
// moved 3 one level back — [3, 1, 2]
equal(canvas.item(1), rect1);
equal(canvas.item(2), rect2);
equal(canvas.item(0), rect3);
canvas.sendBackwards(rect3);
// 3 stays at the deepEqual position — [2, 3, 1]
equal(canvas.item(1), rect1);
equal(canvas.item(2), rect2);
equal(canvas.item(0), rect3);
canvas.sendBackwards(rect2);
equal(canvas.item(2), rect1);
equal(canvas.item(1), rect2);
equal(canvas.item(0), rect3);
canvas.sendBackwards(rect2);
equal(canvas.item(2), rect1);
equal(canvas.item(0), rect2);
equal(canvas.item(1), rect3);
});
test('bringForward', function() {
ok(typeof canvas.bringForward == 'function');
var rect1 = makeRect(),
rect2 = makeRect(),
rect3 = makeRect();
canvas.add(rect1, rect2, rect3);
// initial position — [ 1, 2, 3 ]
equal(canvas.item(0), rect1);
equal(canvas.item(1), rect2);
equal(canvas.item(2), rect3);
canvas.bringForward(rect1);
// 1 moves one way up — [ 2, 1, 3 ]
equal(canvas.item(1), rect1);
equal(canvas.item(0), rect2);
equal(canvas.item(2), rect3);
canvas.bringForward(rect1);
// 1 moves one way up again — [ 2, 3, 1 ]
equal(canvas.item(2), rect1);
equal(canvas.item(0), rect2);
equal(canvas.item(1), rect3);
canvas.bringForward(rect1);
// 1 is already all the way on top and so doesn't change position — [ 2, 3, 1 ]
equal(canvas.item(2), rect1);
equal(canvas.item(0), rect2);
equal(canvas.item(1), rect3);
canvas.bringForward(rect3);
// 1 is already all the way on top and so doesn't change position — [ 2, 1, 3 ]
equal(canvas.item(1), rect1);
equal(canvas.item(0), rect2);
equal(canvas.item(2), rect3);
});
test('moveTo', function() {
ok(typeof canvas.moveTo == 'function');
var rect1 = makeRect(),
rect2 = makeRect(),
rect3 = makeRect();
canvas.add(rect1, rect2, rect3);
// [ 1, 2, 3 ]
equal(canvas.item(0), rect1);
equal(canvas.item(1), rect2);
equal(canvas.item(2), rect3);
canvas.moveTo(rect3, 0);
// moved 3 to level 0 — [3, 1, 2]
equal(canvas.item(1), rect1);
equal(canvas.item(2), rect2);
equal(canvas.item(0), rect3);
canvas.moveTo(rect3, 1);
// moved 3 to level 1 — [1, 3, 2]
equal(canvas.item(0), rect1);
equal(canvas.item(2), rect2);
equal(canvas.item(1), rect3);
canvas.moveTo(rect3, 2);
// moved 3 to level 2 — [1, 2, 3]
equal(canvas.item(0), rect1);
equal(canvas.item(1), rect2);
equal(canvas.item(2), rect3);
canvas.moveTo(rect3, 2);
// moved 3 to same level 2 and so doesn't change position — [1, 2, 3]
equal(canvas.item(0), rect1);
equal(canvas.item(1), rect2);
equal(canvas.item(2), rect3);
canvas.moveTo(rect2, 0);
// moved 2 to level 0 — [2, 1, 3]
equal(canvas.item(1), rect1);
equal(canvas.item(0), rect2);
equal(canvas.item(2), rect3);
canvas.moveTo(rect2, 2);
// moved 2 to level 2 — [1, 3, 2]
equal(canvas.item(0), rect1);
equal(canvas.item(2), rect2);
equal(canvas.item(1), rect3);
});
test('item', function() {
ok(typeof canvas.item == 'function');
var rect1 = makeRect(),
rect2 = makeRect();
canvas.add(rect1, rect2);
equal(canvas.item(0), rect1);
equal(canvas.item(1), rect2);
canvas.remove(canvas.item(0));
equal(canvas.item(0), rect2);
});
test('complexity', function() {
ok(typeof canvas.complexity == 'function');
equal(canvas.complexity(), 0);
canvas.add(makeRect());
equal(canvas.complexity(), 1);
canvas.add(makeRect(), makeRect());
equal(canvas.complexity(), 3);
});
test('toString', function() {
ok(typeof canvas.toString == 'function');
equal(canvas.toString(), '#<fabric.Canvas (0): { objects: 0 }>');
canvas.add(makeRect());
equal(canvas.toString(), '#<fabric.Canvas (1): { objects: 1 }>');
});
test('dispose', function() {
ok(typeof canvas.dispose == 'function');
canvas.add(makeRect(), makeRect(), makeRect());
canvas.dispose();
equal(canvas.getObjects().length, 0, 'dispose should clear canvas');
});
test('clone', function() {
ok(typeof canvas.clone == 'function');
// TODO (kangax): test clone
});
test('getSetWidth', function() {
ok(typeof canvas.getWidth == 'function');
equal(canvas.getWidth(), 600);
equal(canvas.setWidth(444), canvas, 'should be chainable');
equal(canvas.getWidth(), 444);
equal(canvas.lowerCanvasEl.style.width, 444 + 'px');
});
test('getSetHeight', function() {
ok(typeof canvas.getHeight == 'function');
equal(canvas.getHeight(), 600);
equal(canvas.setHeight(765), canvas, 'should be chainable');
equal(canvas.getHeight(), 765);
equal(canvas.lowerCanvasEl.style.height, 765 + 'px');
});
test('setWidth css only', function() {
canvas.setWidth(123);
canvas.setWidth('100%', { cssOnly: true });
equal(canvas.lowerCanvasEl.style.width, '100%', 'Should be as the css only value');
equal(canvas.getWidth(), 123, 'Should be as the none css only value');
});
test('setHeight css only', function() {
canvas.setHeight(123);
canvas.setHeight('100%', { cssOnly: true });
equal(canvas.lowerCanvasEl.style.height, '100%', 'Should be as the css only value');
equal(canvas.getWidth(), 123, 'Should be as the none css only value');
});
test('setWidth backstore only', function() {
canvas.setWidth(123);
canvas.setWidth(500, { backstoreOnly: true });
equal(canvas.lowerCanvasEl.style.width, 123 + 'px', 'Should be as none backstore only value + "px"');
equal(canvas.getWidth(), 500, 'Should be as the backstore only value');
});
test('setHeight backstore only', function() {
canvas.setHeight(123);
canvas.setHeight(500, { backstoreOnly: true });
equal(canvas.lowerCanvasEl.style.height, 123 + 'px', 'Should be as none backstore only value + "px"');
equal(canvas.getHeight(), 500, 'Should be as the backstore only value');
});
asyncTest('fxRemove', function() {
ok(typeof canvas.fxRemove == 'function');
var rect = new fabric.Rect();
canvas.add(rect);
var callbackFired = false;
function onComplete(){
callbackFired = true;
}
ok(canvas.item(0) === rect);
equal(canvas.fxRemove(rect, { onComplete: onComplete }), canvas, 'should be chainable');
setTimeout(function() {
equal(canvas.item(0), undefined);
ok(callbackFired);
start();
}, 1000);
});
asyncTest('options in setBackgroundImage from URL', function() {
canvas.setBackgroundImage(IMG_SRC, function() {
equal(canvas.backgroundImage.left, 50);
equal(canvas.backgroundImage.originX, 'right');
start();
}, {
left: 50,
originX: 'right'
});
});
//how to test with an exception?
/*asyncTest('options in setBackgroundImage from invalid URL', function() {
canvas.backgroundImage = null;
canvas.setBackgroundImage(IMG_SRC + '_not_exist', function() {
equal(canvas.backgroundImage, null);
start();
}, {
left: 50,
originX: 'right'
});
});*/
asyncTest('options in setBackgroundImage from image instance', function() {
createImageObject(function(imageInstance) {
canvas.setBackgroundImage(imageInstance, function() {
equal(canvas.backgroundImage.left, 100);
equal(canvas.backgroundImage.originX, 'center');
start();
}, {
left: 100,
originX: 'center'
});
});
});
// asyncTest('backgroundImage', function() {
// deepEqual('', canvas.backgroundImage);
// canvas.setBackgroundImage('../../assets/pug.jpg');
// setTimeout(function() {
// ok(typeof canvas.backgroundImage == 'object');
// ok(/pug\.jpg$/.test(canvas.backgroundImage.src));
// start();
// }, 1000);
// });
// asyncTest('setOverlayImage', function() {
// deepEqual(canvas.overlayImage, undefined);
// canvas.setOverlayImage('../../assets/pug.jpg');
// setTimeout(function() {
// ok(typeof canvas.overlayImage == 'object');
// ok(/pug\.jpg$/.test(canvas.overlayImage.src));
// start();
// }, 1000);
// });
})();
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