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Improve layer load #623

Merged
merged 14 commits into from
Jul 4, 2018
Merged

Improve layer load #623

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35775b2
Load map depending on the data type of the event
elenatorro Jun 26, 2018
2a6bcb7
Fix specs
elenatorro Jun 26, 2018
2f9a9da
Add specs to test when dataType is source
elenatorro Jun 27, 2018
5e21827
Listen both load and sourcedata event
elenatorro Jun 27, 2018
d22c842
Fix typo
elenatorro Jun 27, 2018
9ec494d
Remove unused variable
elenatorro Jun 27, 2018
462dc1f
Revert changes and use map._loaded to add a layer
elenatorro Jun 28, 2018
380aaff
Merge branch 'master' into 604-improve-layer-load
elenatorro Jul 3, 2018
baa2abe
Load the map if the styles have been properly loaded
elenatorro Jul 3, 2018
4cffafe
Remove redundant check
elenatorro Jul 3, 2018
cf34620
Remove unnecessary checks
elenatorro Jul 3, 2018
f706ab4
Merge branch 'master' into 604-improve-layer-load
elenatorro Jul 3, 2018
9b78363
Do not use bind
elenatorro Jul 4, 2018
0d97a26
Check the given error
elenatorro Jul 4, 2018
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19 changes: 14 additions & 5 deletions src/api/layer.js
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Original file line number Diff line number Diff line change
Expand Up @@ -376,12 +376,21 @@ export default class Layer {
}

_addToMGLMap(map, beforeLayerID) {
if (map.isStyleLoaded()) {
this._isSourceLoaded = false;

map.on('sourcedata', this._onMapSourcedata);
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dont we need to bind this here?

map.on('load', this._onMapLoad.bind(this, map, beforeLayerID));
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I think

map.on('load', this._onMapLoad.bind(this));

is more intuitive since we only bound the context but the parameters

}

_onMapSourcedata(event) {
this._isSourceLoaded = event.isSourceLoaded;
}

_onMapLoad(map, beforeLayerID) {
if (map.isStyleLoaded() || this._isSourceLoaded) {
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I think this._isSourceLoaded is always undefined because this (pun intended) :trollface:

map.off('sourcedata', this._onMapSourcedata);
map.off('load', this._onMapLoad);
this._onMapLoaded(map, beforeLayerID);
} else {
map.on('load', () => {
this._onMapLoaded(map, beforeLayerID);
});
}
}

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60 changes: 35 additions & 25 deletions test/unit/api/layer.test.js
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Expand Up @@ -132,48 +132,58 @@ describe('api/layer', () => {
describe('.addTo', () => {
describe('._addToMGLMap', () => {
let layer;

const sourcedataEvent = {
isSourceLoaded: false
};

const loadEvent = {};

const mapMock = {
isStyleLoaded: jasmine.createSpy('isStyleLoaded').and.returnValue(true),
on: (id, callback) => {
if (id === 'load') {
callback.call(layer, loadEvent);
}

if (id === 'sourcedata') {
callback.call(layer, sourcedataEvent);
}
},

off: () => {}
};

beforeEach(() => {
layer = new Layer('layer0', source, viz);
layer._onMapLoaded = () => { };
layer._onMapLoaded = () => {};
spyOn(layer, '_onMapLoaded');
});

it('should call onMapLoaded when the map is loaded', () => {
const mapMock = { isStyleLoaded: () => true };
layer._addToMGLMap(mapMock);
expect(layer._onMapLoaded).toHaveBeenCalledWith(mapMock, undefined);
expect(layer._onMapLoaded).toHaveBeenCalled();
});

it('should not call onMapLoaded when the map is not loaded', () => {
const mapMock = { isStyleLoaded: () => false, on: () => { } };
it('should not call onMapLoaded when the map style and source are not loaded', () => {
sourcedataEvent.isSourceLoaded = false;
mapMock.isStyleLoaded = jasmine.createSpy('isStyleLoaded').and.returnValue(false),
layer._addToMGLMap(mapMock);
expect(layer._onMapLoaded).not.toHaveBeenCalled();
});

it('should call onMapLoaded when the map `load` event is triggered', () => {
const mapMock = {
isStyleLoaded: () => false,
on: (id, callback) => {
if (id === 'load') {
callback();
}
}
};
it('should call onMapLoaded when the style is loaded but the sourcedata is not', () => {
sourcedataEvent.isSourceLoaded = false;
mapMock.isStyleLoaded = jasmine.createSpy('isStyleLoaded').and.returnValue(true),
layer._addToMGLMap(mapMock);
expect(layer._onMapLoaded).toHaveBeenCalledWith(mapMock, undefined);
expect(layer._onMapLoaded).toHaveBeenCalled();
});

it('should not call onMapLoaded when other the map event is triggered', () => {
const mapMock = {
isStyleLoaded: () => false,
on: (id, callback) => {
if (id === 'other') {
callback();
}
}
};
it('should call onMapLoaded when the style is not loaded and the sourcedata is', () => {
sourcedataEvent.isSourceLoaded = true;
mapMock.isStyleLoaded = jasmine.createSpy('isStyleLoaded').and.returnValue(false),
layer._addToMGLMap(mapMock);
expect(layer._onMapLoaded).not.toHaveBeenCalled();
expect(layer._onMapLoaded).toHaveBeenCalled();
});
});
});
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