102 lines
3.7 KiB
JavaScript
102 lines
3.7 KiB
JavaScript
goog.require('ol.events');
|
|
goog.require('ol.obj');
|
|
goog.require('ol.render.canvas');
|
|
|
|
|
|
describe('ol.render.canvas', function() {
|
|
|
|
var font = document.createElement('link');
|
|
font.href = 'https://fonts.googleapis.com/css?family=Abel&text=wmytzilWMYTZIL%40%23%2F%26%3F%24%2510';
|
|
font.rel = 'stylesheet';
|
|
var head = document.getElementsByTagName('head')[0];
|
|
|
|
describe('ol.render.canvas.checkFont()', function() {
|
|
|
|
beforeEach(function() {
|
|
ol.obj.clear(ol.render.canvas.checkedFonts_);
|
|
ol.render.canvas.getMeasureContext();
|
|
ol.render.canvas.measureTextHeight('12px sans-serif');
|
|
});
|
|
|
|
var checkFont = ol.render.canvas.checkFont;
|
|
var retries = 60;
|
|
|
|
it('does not clear label cache and measurements for unavailable fonts', function(done) {
|
|
this.timeout(3000);
|
|
var spy = sinon.spy();
|
|
ol.events.listen(ol.render.canvas.labelCache, 'clear', spy);
|
|
var interval = setInterval(function() {
|
|
if (ol.render.canvas.checkedFonts_['foo'] == retries && ol.render.canvas.checkedFonts_['sans-serif'] == retries) {
|
|
clearInterval(interval);
|
|
ol.events.unlisten(ol.render.canvas.labelCache, 'clear', spy);
|
|
expect(spy.callCount).to.be(0);
|
|
expect(ol.render.canvas.measureContext_).to.not.be(null);
|
|
expect(ol.render.canvas.textHeights_).to.not.eql({});
|
|
done();
|
|
}
|
|
}, 32);
|
|
checkFont('12px foo,sans-serif');
|
|
});
|
|
|
|
it('does not clear label cache and measurements for available fonts', function(done) {
|
|
var spy = sinon.spy();
|
|
ol.events.listen(ol.render.canvas.labelCache, 'clear', spy);
|
|
var interval = setInterval(function() {
|
|
if (ol.render.canvas.checkedFonts_['sans-serif'] == retries) {
|
|
clearInterval(interval);
|
|
ol.events.unlisten(ol.render.canvas.labelCache, 'clear', spy);
|
|
expect(spy.callCount).to.be(0);
|
|
expect(ol.render.canvas.measureContext_).to.not.be(null);
|
|
expect(ol.render.canvas.textHeights_).to.not.eql({});
|
|
done();
|
|
}
|
|
}, 32);
|
|
checkFont('12px sans-serif');
|
|
});
|
|
|
|
it('does not clear label cache and measurements for the \'monospace\' font', function(done) {
|
|
var spy = sinon.spy();
|
|
ol.events.listen(ol.render.canvas.labelCache, 'clear', spy);
|
|
var interval = setInterval(function() {
|
|
if (ol.render.canvas.checkedFonts_['monospace'] == retries) {
|
|
clearInterval(interval);
|
|
ol.events.unlisten(ol.render.canvas.labelCache, 'clear', spy);
|
|
expect(spy.callCount).to.be(0);
|
|
expect(ol.render.canvas.measureContext_).to.not.be(null);
|
|
expect(ol.render.canvas.textHeights_).to.not.eql({});
|
|
done();
|
|
}
|
|
}, 32);
|
|
checkFont('12px monospace');
|
|
});
|
|
|
|
it('clears label cache and measurements for fonts that become available', function(done) {
|
|
head.appendChild(font);
|
|
ol.events.listen(ol.render.canvas.labelCache, 'clear', function() {
|
|
expect(ol.render.canvas.measureContext_).to.be(null);
|
|
expect(ol.render.canvas.textHeights_).to.eql({});
|
|
done();
|
|
});
|
|
checkFont('12px Abel');
|
|
});
|
|
|
|
});
|
|
|
|
|
|
describe('rotateAtOffset', function() {
|
|
it('rotates a canvas at an offset point', function() {
|
|
var context = {
|
|
translate: sinon.spy(),
|
|
rotate: sinon.spy()
|
|
};
|
|
ol.render.canvas.rotateAtOffset(context, Math.PI, 10, 10);
|
|
expect(context.translate.callCount).to.be(2);
|
|
expect(context.translate.firstCall.args).to.eql([10, 10]);
|
|
expect(context.translate.secondCall.args).to.eql([-10, -10]);
|
|
expect(context.rotate.callCount).to.be(1);
|
|
expect(context.rotate.firstCall.args).to.eql([Math.PI]);
|
|
});
|
|
});
|
|
|
|
});
|