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Removed unused forEachFeatureAtCoordinate from ol/source/Source

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Fixes #8826.
This commit is contained in:
Kevin Schmidt
2018-10-16 10:30:09 -06:00
parent a85099a36b
commit df4ef724b6
3 changed files with 43 additions and 97 deletions
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55
src/ol/renderer/canvas/IntermediateCanvas.js
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@@ -4,7 +4,6 @@
import {scale as scaleCoordinate} from '../../coordinate.js';
import {createCanvasContext2D} from '../../dom.js';
import {containsExtent, intersects} from '../../extent.js';
import {VOID} from '../../functions.js';
import CanvasLayerRenderer from '../canvas/Layer.js';
import {create as createTransform, apply as applyTransform} from '../../transform.js';
@@ -89,26 +88,6 @@ class IntermediateCanvasRenderer extends CanvasLayerRenderer {
*/
getImageTransform() {}
/**
* @inheritDoc
*/
forEachFeatureAtCoordinate(coordinate, frameState, hitTolerance, callback, thisArg) {
const layer = this.getLayer();
const source = layer.getSource();
const resolution = frameState.viewState.resolution;
const rotation = frameState.viewState.rotation;
const skippedFeatureUids = frameState.skippedFeatureUids;
return source.forEachFeatureAtCoordinate(
coordinate, resolution, rotation, hitTolerance, skippedFeatureUids,
/**
* @param {import("../../Feature.js").FeatureLike} feature Feature.
* @return {?} Callback result.
*/
function(feature) {
return callback.call(thisArg, feature, layer);
});
}
/**
* @inheritDoc
*/
@@ -117,27 +96,21 @@ class IntermediateCanvasRenderer extends CanvasLayerRenderer {
return undefined;
}
if (this.getLayer().getSource().forEachFeatureAtCoordinate !== VOID) {
// for ImageCanvas sources use the original hit-detection logic,
// so that for example also transparent polygons are detected
return super.forEachLayerAtCoordinate(coordinate, frameState, hitTolerance, callback, thisArg);
const pixel = applyTransform(this.coordinateToCanvasPixelTransform, coordinate.slice());
scaleCoordinate(pixel, frameState.viewState.resolution / this.renderedResolution);
if (!this.hitCanvasContext_) {
this.hitCanvasContext_ = createCanvasContext2D(1, 1);
}
this.hitCanvasContext_.clearRect(0, 0, 1, 1);
this.hitCanvasContext_.drawImage(this.getImage(), pixel[0], pixel[1], 1, 1, 0, 0, 1, 1);
const imageData = this.hitCanvasContext_.getImageData(0, 0, 1, 1).data;
if (imageData[3] > 0) {
return callback.call(thisArg, this.getLayer(), imageData);
} else {
const pixel = applyTransform(this.coordinateToCanvasPixelTransform, coordinate.slice());
scaleCoordinate(pixel, frameState.viewState.resolution / this.renderedResolution);
if (!this.hitCanvasContext_) {
this.hitCanvasContext_ = createCanvasContext2D(1, 1);
}
this.hitCanvasContext_.clearRect(0, 0, 1, 1);
this.hitCanvasContext_.drawImage(this.getImage(), pixel[0], pixel[1], 1, 1, 0, 0, 1, 1);
const imageData = this.hitCanvasContext_.getImageData(0, 0, 1, 1).data;
if (imageData[3] > 0) {
return callback.call(thisArg, this.getLayer(), imageData);
} else {
return undefined;
}
return undefined;
}
}
}