mirror of
https://github.com/openseadragon/openseadragon.git
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513 lines
18 KiB
JavaScript
513 lines
18 KiB
JavaScript
/* global module, asyncTest, $, ok, equal, notEqual, start, test, Util, testLog, propEqual */
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(function () {
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var viewer;
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var VIEWER_ID = "example";
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var PREFIX_URL = "/build/openseadragon/images";
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var SPRING_STIFFNESS = 100; // Faster animation = faster tests
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module("viewport", {
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setup: function () {
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var example = $('<div id="example"></div>').appendTo("#qunit-fixture");
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testLog.reset();
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viewer = OpenSeadragon({
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id: VIEWER_ID,
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prefixUrl: PREFIX_URL,
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springStiffness: SPRING_STIFFNESS
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});
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},
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teardown: function () {
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if (viewer && viewer.close) {
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viewer.close();
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}
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viewer = null;
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}
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});
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// helpers and constants
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var ZOOM_FACTOR = 2; // the image will be twice as large as the viewer.
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var VIEWER_PADDING = new OpenSeadragon.Point(0.25, 0.25);
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var DZI_PATH = '/test/data/testpattern.dzi';
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var TALL_PATH = '/test/data/tall.dzi';
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var testZoomLevels = [-1, 0, 0.1, 0.5, 4, 10];
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var testPoints = [
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new OpenSeadragon.Point(0, 0),
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new OpenSeadragon.Point(0.001, 0.001),
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new OpenSeadragon.Point(0.25, 0.5),
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new OpenSeadragon.Point(0.99, 0.99),
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new OpenSeadragon.Point(1, 1)
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];
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var testRects = [
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new OpenSeadragon.Rect(0, 0, 0, 0),
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new OpenSeadragon.Rect(0.001, 0.005, 0.001, 0.003),
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new OpenSeadragon.Rect(0.25, 0.25, 0.25, 0.25),
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new OpenSeadragon.Rect(0.999, 0.999, 0.999, 0.999),
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new OpenSeadragon.Rect(1, 1, 1, 1)
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];
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// Test helper - a lot of these tests loop through a few possible
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// values for zoom levels, and reopen the viewer for each iteration.
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var reopenViewerHelper = function(config) {
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var expected, level, actual, i = 0;
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var openHandler = function(event) {
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viewer.removeHandler('open', openHandler);
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var viewport = viewer.viewport;
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expected = config.processExpected(level, expected);
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actual = viewport[config.method]();
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propEqual(
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actual,
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expected,
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"Test " + config.method + " with zoom level of " + level + ". Expected : " + expected + ", got " + actual
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);
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i++;
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if(i < testZoomLevels.length){
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level = expected = testZoomLevels[i];
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var viewerConfig = {
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id: VIEWER_ID,
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prefixUrl: PREFIX_URL,
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springStiffness: SPRING_STIFFNESS
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};
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viewerConfig[config.property] = level;
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viewer = OpenSeadragon(viewerConfig);
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viewer.addHandler('open', openHandler);
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viewer.open(DZI_PATH);
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} else {
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start();
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}
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};
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viewer.addHandler('open', openHandler);
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level = expected = testZoomLevels[i];
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viewer[config.property] = level;
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viewer.open(DZI_PATH);
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};
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// Test helper - a lot of these tests loop through a test data
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// array and test different values. This helper does not reopen the viewer.
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var loopingTestHelper = function(config) {
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var openHandler = function(event) {
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viewer.removeHandler('open', openHandler);
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var viewport = viewer.viewport;
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viewport.zoomTo(ZOOM_FACTOR, null, true);
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viewport.update(); // need to call this even with immediately=true
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var orig, expected, actual;
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for (var i = 0; i < config.testArray.length; i++){
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orig = config.getOrig(config.testArray[i], viewport);
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expected = config.getExpected(orig, viewport);
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actual = viewport[config.method](orig);
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propEqual(
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actual,
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expected,
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"Correctly converted coordinates " + orig
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);
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}
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start();
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};
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viewer.addHandler('open', openHandler);
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viewer.open(DZI_PATH);
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};
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// Tests start here.
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asyncTest('getContainerSize', function() {
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var openHandler = function(event) {
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viewer.removeHandler('open', openHandler);
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var viewport = viewer.viewport;
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viewport.zoomTo(ZOOM_FACTOR, null, true);
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viewport.update(); // need to call this even with immediately=true
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propEqual(viewport.getContainerSize(), new OpenSeadragon.Point(500, 500), "Test container size");
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start();
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};
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viewer.addHandler('open', openHandler);
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viewer.open(DZI_PATH);
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});
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asyncTest('getAspectRatio', function() {
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var openHandler = function(event) {
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viewer.removeHandler('open', openHandler);
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var viewport = viewer.viewport;
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viewport.zoomTo(ZOOM_FACTOR, null, true);
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viewport.update(); // need to call this even with immediately=true
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equal(viewport.getAspectRatio(), 1, "Test aspect ratio");
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start();
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};
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viewer.addHandler('open', openHandler);
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viewer.open(DZI_PATH);
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});
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asyncTest('getMinZoomDefault', function() {
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var openHandler = function(event) {
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viewer.removeHandler('open', openHandler);
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var viewport = viewer.viewport;
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equal(viewport.getMinZoom(), 0.9, "Test default min zoom level");
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start();
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};
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viewer.addHandler('open', openHandler);
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viewer.open(DZI_PATH);
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});
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asyncTest('getMaxZoomDefault', function() {
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var openHandler = function(event) {
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viewer.removeHandler('open', openHandler);
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var viewport = viewer.viewport;
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equal(viewport.getMaxZoom(), 2.2, "Test default max zoom level");
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start();
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};
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viewer.addHandler('open', openHandler);
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viewer.open(DZI_PATH);
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});
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asyncTest('getMinZoom', function() {
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reopenViewerHelper({
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property: 'minZoomLevel',
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method: 'getMinZoom',
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processExpected: function(level, expected){
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if(level === 0) { // 0 means use the default
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expected = 0.9;
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} else if(level > 1) {
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expected = 1; // min zoom won't go bigger than 1.
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}
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return expected;
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}
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});
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});
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asyncTest('getMaxZoom', function() {
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reopenViewerHelper({
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property: 'maxZoomLevel',
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method: 'getMaxZoom',
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processExpected: function(level, expected) {
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if(level === 0){ // 0 means use the default
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expected = 2.2;
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} else if(level < 1){
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expected = 1; // max zoom won't go smaller than 1.
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}
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return expected;
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}
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});
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});
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asyncTest('getHomeBounds', function() {
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reopenViewerHelper({
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property: 'defaultZoomLevel',
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method: 'getHomeBounds',
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processExpected: function(level, expected) {
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// Have to special case this to avoid dividing by 0
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if(level === -1 || level === 0){
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expected = new OpenSeadragon.Rect(0, 0, 1, 1);
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} else {
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var sideLength = 1.0 / viewer.defaultZoomLevel; // it's a square in this case
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var position = 0.5 - (sideLength / 2.0);
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expected = new OpenSeadragon.Rect(position, position, sideLength, sideLength);
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}
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return expected;
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}
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});
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});
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asyncTest('getHomeZoom', function() {
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reopenViewerHelper({
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property: 'defaultZoomLevel',
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method: 'getHomeZoom',
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processExpected: function(level, expected){
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// If the default zoom level is set to 0, then we expect the home zoom to be 1.
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if(expected === 0){
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expected = 1;
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}
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return expected;
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}
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});
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});
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// I don't use the helper for this one because it sets a couple more
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// properties that would need special casing.
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asyncTest('getHomeZoomWithHomeFillsViewer', function() {
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var expected, level, i = 0;
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var openHandler = function(event) {
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viewer.removeHandler('open', openHandler);
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var viewport = viewer.viewport;
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viewport.zoomTo(ZOOM_FACTOR, null, true);
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viewport.update(); // need to call this even with immediately=true
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// Special cases for oddball levels
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if (level === -1) {
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expected = 0.25;
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} else if(level === 0){
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expected = 1;
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}
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equal(
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viewport.getHomeZoom(),
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expected,
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"Test getHomeZoom with homeFillsViewer = true and default zoom level of " + expected
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);
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i++;
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if(i < testZoomLevels.length){
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level = expected = testZoomLevels[i];
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viewer = OpenSeadragon({
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id: VIEWER_ID,
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prefixUrl: PREFIX_URL,
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springStiffness: SPRING_STIFFNESS,
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defaultZoomLevel: level,
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homeFillsViewer: true
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});
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viewer.addHandler('open', openHandler);
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viewer.open(TALL_PATH); // use a different image for homeFillsViewer
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} else {
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start();
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}
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};
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viewer.addHandler('open', openHandler);
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level = expected = testZoomLevels[i];
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viewer.homeFillsViewer = true;
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viewer.defaultZoomLevel = expected;
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viewer.open(TALL_PATH); // use a different image for homeFillsViewer
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});
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asyncTest('deltaPixelsFromPoints', function() {
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loopingTestHelper({
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testArray: testPoints,
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getOrig: function(el, viewport){
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return el.times(viewer.source.dimensions.x);
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},
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getExpected: function(orig, viewport){
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return orig.times(viewport.getContainerSize().x * ZOOM_FACTOR);
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},
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method: 'deltaPixelsFromPoints'
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});
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});
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asyncTest('deltaPointsFromPixels', function() {
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loopingTestHelper({
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testArray: testPoints,
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getOrig: function(el, viewport) {
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return el.times(viewport.getContainerSize().x);
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},
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getExpected: function(orig, viewport) {
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return orig.divide(viewport.getContainerSize().x * ZOOM_FACTOR);
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},
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method: 'deltaPointsFromPixels'
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});
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});
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asyncTest('pixelFromPoint', function() {
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loopingTestHelper({
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testArray: testPoints,
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getOrig: function(el, viewport) {
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return el.times(viewer.source.dimensions.x);
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},
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getExpected: function(orig, viewport) {
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return orig.plus(VIEWER_PADDING).times(viewport.getContainerSize().x * ZOOM_FACTOR).minus(viewport.getContainerSize());
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},
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method: 'pixelFromPoint'
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});
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});
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asyncTest('pointFromPixel', function() {
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loopingTestHelper({
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testArray: testPoints,
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getOrig: function(el, viewport) {
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return el.times(viewport.getContainerSize().x);
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},
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getExpected: function(orig, viewport) {
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return orig.divide(viewer.source.dimensions.x).plus(VIEWER_PADDING);
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},
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method: 'pointFromPixel'
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});
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});
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asyncTest('viewportToImageCoordinates', function() {
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loopingTestHelper({
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testArray: testPoints,
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getOrig: function(el, viewport) {
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return el.times(viewport.getContainerSize().x);
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},
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getExpected: function(orig, viewport) {
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return orig.divide(viewer.source.dimensions.x);
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},
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method: 'imageToViewportCoordinates'
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});
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});
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asyncTest('imageToViewportCoordinates', function() {
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loopingTestHelper({
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testArray: testPoints,
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getOrig: function(el, viewport) {
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return el.times(viewer.source.dimensions.x);
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},
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getExpected: function(orig, viewport) {
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return orig.divide(ZOOM_FACTOR * viewport.getContainerSize().x);
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},
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method: 'imageToViewportCoordinates'
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});
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});
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asyncTest('imageToViewportRectangle', function() {
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loopingTestHelper({
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testArray: testRects,
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getOrig: function(el, viewport) {
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return el.times(viewer.source.dimensions.x);
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},
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getExpected: function(orig, viewport) {
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return new OpenSeadragon.Rect(
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orig.x / viewer.source.dimensions.x,
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orig.y / viewer.source.dimensions.x,
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orig.width / viewer.source.dimensions.x,
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orig.height / viewer.source.dimensions.x
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);
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},
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method: 'imageToViewportRectangle'
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});
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});
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asyncTest('viewportToImageRectangle', function() {
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loopingTestHelper({
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testArray: testRects,
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getOrig: function(el, viewport) {
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return el.times(viewport.getContainerSize().x);
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},
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getExpected: function(orig, viewport) {
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return new OpenSeadragon.Rect(
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orig.x * viewer.source.dimensions.x,
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orig.y * viewer.source.dimensions.x,
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orig.width * viewer.source.dimensions.x,
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orig.height * viewer.source.dimensions.x
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);
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},
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method: 'viewportToImageRectangle'
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});
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});
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asyncTest('viewerElementToImageCoordinates', function() {
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loopingTestHelper({
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testArray: testPoints,
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getOrig: function(el, viewport) {
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return el.times(viewport.getContainerSize().x);
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},
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getExpected: function(orig, viewport) {
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return orig.plus(viewport.getContainerSize().divide(2));
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},
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method: 'viewerElementToImageCoordinates'
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});
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});
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asyncTest('imageToViewerElementCoordinates', function() {
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loopingTestHelper({
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testArray: testPoints,
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getOrig: function(el, viewport) {
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return el.times(viewer.source.dimensions.x);
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},
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getExpected: function(orig, viewport) {
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return orig.minus(viewport.getContainerSize().divide(2));
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},
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method: 'imageToViewerElementCoordinates'
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});
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});
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asyncTest('windowToImageCoordinates', function() {
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loopingTestHelper({
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testArray: testPoints,
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getOrig: function(el, viewport) {
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var window_boundary = Math.min(window.innerWidth, window.innerHeight);
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return el.times(window_boundary);
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},
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getExpected: function(orig, viewport) {
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var position, pos_point;
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position = viewer.element.getBoundingClientRect();
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pos_point = new OpenSeadragon.Point(position.top, position.left);
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return orig.minus(pos_point).divide(viewport.getContainerSize().x * ZOOM_FACTOR).plus(VIEWER_PADDING);
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},
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method: 'windowToViewportCoordinates'
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});
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});
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asyncTest('imageToWindowCoordinates', function() {
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loopingTestHelper({
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testArray: testPoints,
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getOrig: function(el, viewport) {
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return el.times(viewer.source.dimensions.x);
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},
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getExpected: function(orig, viewport) {
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var position, pos_point;
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position = viewer.element.getBoundingClientRect();
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pos_point = new OpenSeadragon.Point(position.top, position.left);
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return orig.plus(pos_point).minus(VIEWER_PADDING.times(viewport.getContainerSize().x * ZOOM_FACTOR));
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},
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method: 'imageToWindowCoordinates'
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});
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});
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asyncTest('windowToViewportCoordinates', function() {
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loopingTestHelper({
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testArray: testPoints,
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getOrig: function(el, viewport) {
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var window_boundary = Math.min(window.innerWidth, window.innerHeight);
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return el.times(window_boundary);
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},
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getExpected: function(orig, viewport) {
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var position, pos_point;
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position = viewer.element.getBoundingClientRect();
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pos_point = new OpenSeadragon.Point(position.top, position.left);
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return orig.minus(pos_point).divide(viewport.getContainerSize().x * ZOOM_FACTOR).plus(VIEWER_PADDING);
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},
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method: 'windowToViewportCoordinates'
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});
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});
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asyncTest('viewportToWindowCoordinates', function() {
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loopingTestHelper({
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testArray: testPoints,
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getOrig: function(el, viewport) {
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return el.times(viewer.source.dimensions.x);
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},
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getExpected: function(orig, viewport) {
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var position, pos_point;
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position = viewer.element.getBoundingClientRect();
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pos_point = new OpenSeadragon.Point(position.top, position.left);
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return orig.minus(VIEWER_PADDING).times(viewport.getContainerSize().x * ZOOM_FACTOR).plus(pos_point);
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},
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method: 'viewportToWindowCoordinates'
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});
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});
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asyncTest('viewportToImageZoom', function() {
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loopingTestHelper({
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testArray: testPoints,
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getOrig: function(el, viewport) {
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return el;
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},
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getExpected: function(orig, viewport) {
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return orig / ZOOM_FACTOR;
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},
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method: 'viewportToImageZoom'
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});
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});
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asyncTest('imageToViewportZoom', function() {
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loopingTestHelper({
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testArray: testPoints,
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getOrig: function(el, viewport) {
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return el;
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},
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getExpected: function(orig, viewport) {
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return orig * ZOOM_FACTOR;
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},
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method: 'imageToViewportZoom'
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});
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});
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})();
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