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Merge pull request #8708 from wallw-bits/fix-typecheck-imagecanvas

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Fix type checks in ImageCanvas source
This commit is contained in:
Frédéric Junod
2018-09-26 15:50:42 +02:00
committed by GitHub
parent 3b747f4d2d 3ba789eae6
commit 55b300082a
1 changed files with 7 additions and 5 deletions
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12
src/ol/source/ImageCanvas.js
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@@ -32,7 +32,7 @@ import ImageSource from '../source/Image.js';
* projection. The canvas returned by this function is cached by the source. If
* the value returned by the function is later changed then
* `changed` should be called on the source for the source to
* invalidate the current cached image. See @link: {@link module:ol/Observable~Observable#changed}
* invalidate the current cached image. See: {@link module:ol/Observable~Observable#changed}
* @property {import("../proj.js").ProjectionLike} projection Projection.
* @property {number} [ratio=1.5] Ratio. 1 means canvases are the size of the map viewport, 2 means twice the
* width and height of the map viewport, and so on. Must be `1` or higher.
@@ -49,9 +49,11 @@ import ImageSource from '../source/Image.js';
*/
class ImageCanvasSource extends ImageSource {
/**
* @param {Options=} options ImageCanvas options.
* @param {Options=} opt_options ImageCanvas options.
*/
constructor(options) {
constructor(opt_options) {
const options = opt_options || /** @type {Options} */ ({});
super({
attributions: options.attributions,
@@ -108,8 +110,8 @@ class ImageCanvasSource extends ImageSource {
const height = getHeight(extent) / resolution;
const size = [width * pixelRatio, height * pixelRatio];
const canvasElement = this.canvasFunction_(
extent, resolution, pixelRatio, size, projection);
const canvasElement = this.canvasFunction_.call(
this, extent, resolution, pixelRatio, size, projection);
if (canvasElement) {
canvas = new ImageCanvas(extent, resolution, pixelRatio, canvasElement);
}