/* global QUnit, $,testLog */
( function() {
var viewer;
QUnit.module( 'Multi-Image', {
beforeEach: function() {
$( '<div id="example"></div>' ).appendTo( "#qunit-fixture" );
testLog.reset();
viewer = OpenSeadragon( {
id: 'example',
prefixUrl: '/build/openseadragon/images/',
springStiffness: 100 // Faster animation = faster tests
});
},
afterEach: function() {
if ( viewer && viewer.close ) {
viewer.close();
}
viewer = null;
$("#example").remove();
}
} );
// ----------
QUnit.test( 'Multi-image operations', function(assert) {
var done = assert.async();
assert.expect( 24 );
viewer.addHandler( "open", function( ) {
assert.equal( 1, viewer.world.getItemCount( ),
"One item should be present after opening." );
var options = {
tileSource: {
type: 'legacy-image-pyramid',
levels: [ {
url: "data/A.png",
width: 1000,
height: 1000
} ]
}
};
viewer.addTiledImage( options );
viewer.world.addHandler( "add-item", function addFirstItemHandler( event ) {
viewer.world.removeHandler( "add-item", addFirstItemHandler );
var item1 = event.item;
assert.equal( viewer.world.getItemCount( ), 2,
"2 items should be present after adding a item." );
assert.equal( viewer.world.getIndexOfItem( item1 ), 1,
"The first added item should have a index of 1" );
assert.equal( viewer.world.getItemAt( 1 ), item1,
"The item at index 1 should be the first added item." );
viewer.addTiledImage( options );
viewer.world.addHandler( "add-item", function addSecondItemHandler( event ) {
viewer.world.removeHandler( "add-item", addSecondItemHandler );
var item2 = event.item;
assert.equal( viewer.world.getItemCount( ), 3,
"3 items should be present after adding a second item." );
assert.equal( viewer.world.getIndexOfItem( item2 ), 2,
"If not specified, a item should be added with the highest index." );
assert.equal( viewer.world.getItemAt( 2 ), item2,
"The item at index 2 should be the second added item." );
viewer.world.addHandler( "item-index-change",
function itemIndexChangedHandler( event ) {
viewer.world.removeHandler( "item-index-change",
itemIndexChangedHandler );
assert.equal( event.item, item2,
"The item which changed index should be item2" );
assert.equal( event.previousIndex, 2, "Previous index should be 2." );
assert.equal( event.newIndex, 1, "New index should be 1." );
});
viewer.world.setItemIndex( item2, 1 );
assert.equal( viewer.world.getIndexOfItem( item2 ), 1,
"Item2 index should be 1 after setItemIndex." );
assert.equal( viewer.world.getIndexOfItem( item1 ), 2,
"Item1 index should be 2 after setItemIndex." );
assert.equal( viewer.world.getItemAt( 1 ), item2,
"The item at index 1 should be item2." );
assert.equal( viewer.world.getItemAt( 2 ), item1,
"The item at index 2 should be item1." );
options.index = 2;
options.tileSource.levels[0].url = "data/CCyan.png";
viewer.addTiledImage( options );
viewer.world.addHandler( "add-item", function addThirdItemHandler( event ) {
viewer.world.removeHandler( "add-item", addThirdItemHandler );
var item3 = event.item;
assert.equal( viewer.world.getItemCount( ), 4,
"4 items should be present after adding a third item." );
assert.equal( viewer.world.getIndexOfItem( item3 ), 2,
"Item 3 should be added with index 2." );
assert.equal( viewer.world.getIndexOfItem( item2 ), 1,
"Item 2 should stay at index 1." );
options.index = 2;
options.replace = true;
viewer.addTiledImage( options );
viewer.world.addHandler( "add-item", function replaceAddItemHandler( event ) {
viewer.world.removeHandler( "add-item", replaceAddItemHandler );
var item4 = event.item;
assert.equal( viewer.world.getItemCount( ), 4,
"4 items should still be present after replacing the second item." );
assert.equal( viewer.world.getIndexOfItem( item4 ), 2,
"Item 4 should be added with index 2." );
assert.equal( viewer.world.getIndexOfItem( item3 ), -1,
"Item 3 should be at index -1." );
viewer.world.addHandler( "remove-item", function removeItemHandler( event ) {
viewer.world.removeHandler( "remove-item", removeItemHandler );
assert.equal( item2, event.item, "Removed item should be item2." );
assert.equal( viewer.world.getIndexOfItem( item1 ), 2,
"Item 1 should be at index 2." );
assert.equal( viewer.world.getIndexOfItem( item2 ), -1,
"Item 2 should be at index -1." );
assert.equal( viewer.world.getIndexOfItem( item4 ), 1,
"Item 4 should be at index 1." );
done();
});
viewer.world.removeItem( item2 );
});
});
});
});
});
viewer.open( '/test/data/testpattern.dzi' );
});
// ----------
QUnit.test( 'Sequences as items', function(assert) {
var done = assert.async();
var options = {
tileSource: [{
type: 'legacy-image-pyramid',
levels: [{
url: "data/A.png",
width: 1000,
height: 1000
}]
}, {
type: 'legacy-image-pyramid',
levels: [{
url: "data/BBlue.png",
width: 1000,
height: 1000
}]
}]
};
viewer.addHandler( "open", function openHandler() {
viewer.removeHandler( "open", openHandler );
viewer.addHandler( "add-item-failed",
function addItemFailedHandler( event ) {
viewer.removeHandler( "add-item-failed", addItemFailedHandler );
assert.equal( event.message, "[Viewer.addTiledImage] Sequences can not be added; add them one at a time instead." );
assert.equal( event.options, options, "Item failed event should give the options." );
done();
} );
viewer.addTiledImage( options );
});
viewer.open( '/test/data/testpattern.dzi' );
});
// ----------
QUnit.test('items are added in order', function(assert) {
var done = assert.async();
viewer.addHandler('open', function(event) {
assert.equal(viewer.world.getItemAt(0).getContentSize().y, 2000, 'first image is tall');
assert.equal(viewer.world.getItemAt(0).getBounds().width, 4, 'first image has 4 width');
assert.equal(viewer.world.getItemAt(1).getContentSize().x, 2000, 'second image is wide');
assert.equal(viewer.world.getItemAt(1).getBounds().width, 2, 'second image has 2 width');
done();
});
viewer.open([
{
tileSource: '/test/data/tall.dzi',
width: 4
}, {
tileSource: '/test/data/wide.dzi',
width: 2
}
]);
});
QUnit.test('Viewer.addSimpleImage', function(assert) {
var done = assert.async();
viewer.addHandler("open", function openHandler() {
viewer.removeHandler("open", openHandler);
viewer.world.addHandler('add-item', function itemAdded(event) {
viewer.world.removeHandler('add-item', itemAdded);
assert.equal(event.item.opacity, 0.5,
'Opacity option should be set when using addSimpleImage');
done();
});
viewer.addSimpleImage({
url: '/test/data/A.png',
opacity: 0.5
});
});
viewer.open('/test/data/testpattern.dzi');
});
QUnit.test('Transparent image on top of others', function(assert) {
var done = assert.async();
viewer.open('/test/data/testpattern.dzi');
var density = OpenSeadragon.pixelDensityRatio;
viewer.addHandler('open', function() {
var firstImage = viewer.world.getItemAt(0);
firstImage.addHandler('fully-loaded-change', function() {
var imageData = viewer.drawer.context.getImageData(0, 0,
500 * density, 500 * density);
// Pixel 250,250 will be in the hole of the A
var expectedVal = getPixelValue(imageData, 250 * density, 250 * density);
assert.notEqual(expectedVal.r, 0, 'Red channel should not be 0');
assert.notEqual(expectedVal.g, 0, 'Green channel should not be 0');
assert.notEqual(expectedVal.b, 0, 'Blue channel should not be 0');
assert.notEqual(expectedVal.a, 0, 'Alpha channel should not be 0');
viewer.addSimpleImage({
url: '/test/data/A.png',
success: function() {
var secondImage = viewer.world.getItemAt(1);
secondImage.addHandler('fully-loaded-change', function() {
var imageData = viewer.drawer.context.getImageData(0, 0, 500 * density, 500 * density);
var actualVal = getPixelValue(imageData, 250 * density, 250 * density);
assert.equal(actualVal.r, expectedVal.r,
'Red channel should not change in transparent part of the A');
assert.equal(actualVal.g, expectedVal.g,
'Green channel should not change in transparent part of the A');
assert.equal(actualVal.b, expectedVal.b,
'Blue channel should not change in transparent part of the A');
assert.equal(actualVal.a, expectedVal.a,
'Alpha channel should not change in transparent part of the A');
var onAVal = getPixelValue(imageData, 333 * density, 250 * density);
assert.equal(onAVal.r, 0, 'Red channel should be null on the A');
assert.equal(onAVal.g, 0, 'Green channel should be null on the A');
assert.equal(onAVal.b, 0, 'Blue channel should be null on the A');
assert.equal(onAVal.a, 255, 'Alpha channel should be 255 on the A');
done();
});
}
});
});
});
function getPixelValue(imageData, x, y) {
var offset = 4 * (y * imageData.width + x);
return {
r: imageData.data[offset],
g: imageData.data[offset + 1],
b: imageData.data[offset + 2],
a: imageData.data[offset + 3]
};
}
});
})();