162 lines
4.3 KiB
JavaScript
162 lines
4.3 KiB
JavaScript
import {
|
|
ImageState_default
|
|
} from "./chunk-5TDNKDLD.js";
|
|
import {
|
|
Observable_default,
|
|
abstract
|
|
} from "./chunk-H47PV7W6.js";
|
|
import {
|
|
EventType_default
|
|
} from "./chunk-KJXIHBKT.js";
|
|
|
|
// node_modules/ol/renderer/Layer.js
|
|
var maxStaleKeys = 5;
|
|
var LayerRenderer = class extends Observable_default {
|
|
/**
|
|
* @param {LayerType} layer Layer.
|
|
*/
|
|
constructor(layer) {
|
|
super();
|
|
this.ready = true;
|
|
this.boundHandleImageChange_ = this.handleImageChange_.bind(this);
|
|
this.layer_ = layer;
|
|
this.staleKeys_ = new Array();
|
|
this.maxStaleKeys = maxStaleKeys;
|
|
}
|
|
/**
|
|
* @return {Array<string>} Get the list of stale keys.
|
|
*/
|
|
getStaleKeys() {
|
|
return this.staleKeys_;
|
|
}
|
|
/**
|
|
* @param {string} key The new stale key.
|
|
*/
|
|
prependStaleKey(key) {
|
|
this.staleKeys_.unshift(key);
|
|
if (this.staleKeys_.length > this.maxStaleKeys) {
|
|
this.staleKeys_.length = this.maxStaleKeys;
|
|
}
|
|
}
|
|
/**
|
|
* Asynchronous layer level hit detection.
|
|
* @param {import("../pixel.js").Pixel} pixel Pixel.
|
|
* @return {Promise<Array<import("../Feature").FeatureLike>>} Promise that resolves with
|
|
* an array of features.
|
|
*/
|
|
getFeatures(pixel) {
|
|
return abstract();
|
|
}
|
|
/**
|
|
* @param {import("../pixel.js").Pixel} pixel Pixel.
|
|
* @return {Uint8ClampedArray|Uint8Array|Float32Array|DataView|null} Pixel data.
|
|
*/
|
|
getData(pixel) {
|
|
return null;
|
|
}
|
|
/**
|
|
* Determine whether render should be called.
|
|
* @abstract
|
|
* @param {import("../Map.js").FrameState} frameState Frame state.
|
|
* @return {boolean} Layer is ready to be rendered.
|
|
*/
|
|
prepareFrame(frameState) {
|
|
return abstract();
|
|
}
|
|
/**
|
|
* Render the layer.
|
|
* @abstract
|
|
* @param {import("../Map.js").FrameState} frameState Frame state.
|
|
* @param {HTMLElement|null} target Target that may be used to render content to.
|
|
* @return {HTMLElement} The rendered element.
|
|
*/
|
|
renderFrame(frameState, target) {
|
|
return abstract();
|
|
}
|
|
/**
|
|
* @abstract
|
|
* @param {import("../coordinate.js").Coordinate} coordinate Coordinate.
|
|
* @param {import("../Map.js").FrameState} frameState Frame state.
|
|
* @param {number} hitTolerance Hit tolerance in pixels.
|
|
* @param {import("./vector.js").FeatureCallback<T>} callback Feature callback.
|
|
* @param {Array<import("./Map.js").HitMatch<T>>} matches The hit detected matches with tolerance.
|
|
* @return {T|undefined} Callback result.
|
|
* @template T
|
|
*/
|
|
forEachFeatureAtCoordinate(coordinate, frameState, hitTolerance, callback, matches) {
|
|
return void 0;
|
|
}
|
|
/**
|
|
* @return {LayerType} Layer.
|
|
*/
|
|
getLayer() {
|
|
return this.layer_;
|
|
}
|
|
/**
|
|
* Perform action necessary to get the layer rendered after new fonts have loaded
|
|
* @abstract
|
|
*/
|
|
handleFontsChanged() {
|
|
}
|
|
/**
|
|
* Handle changes in image state.
|
|
* @param {import("../events/Event.js").default} event Image change event.
|
|
* @private
|
|
*/
|
|
handleImageChange_(event) {
|
|
const image = (
|
|
/** @type {import("../Image.js").default} */
|
|
event.target
|
|
);
|
|
if (image.getState() === ImageState_default.LOADED || image.getState() === ImageState_default.ERROR) {
|
|
this.renderIfReadyAndVisible();
|
|
}
|
|
}
|
|
/**
|
|
* Load the image if not already loaded, and register the image change
|
|
* listener if needed.
|
|
* @param {import("../Image.js").default} image Image.
|
|
* @return {boolean} `true` if the image is already loaded, `false` otherwise.
|
|
* @protected
|
|
*/
|
|
loadImage(image) {
|
|
let imageState = image.getState();
|
|
if (imageState != ImageState_default.LOADED && imageState != ImageState_default.ERROR) {
|
|
image.addEventListener(EventType_default.CHANGE, this.boundHandleImageChange_);
|
|
}
|
|
if (imageState == ImageState_default.IDLE) {
|
|
image.load();
|
|
imageState = image.getState();
|
|
}
|
|
return imageState == ImageState_default.LOADED;
|
|
}
|
|
/**
|
|
* @protected
|
|
*/
|
|
renderIfReadyAndVisible() {
|
|
const layer = this.getLayer();
|
|
if (layer && layer.getVisible() && layer.getSourceState() === "ready") {
|
|
layer.changed();
|
|
}
|
|
}
|
|
/**
|
|
* @param {import("../Map.js").FrameState} frameState Frame state.
|
|
*/
|
|
renderDeferred(frameState) {
|
|
}
|
|
/**
|
|
* Clean up.
|
|
* @override
|
|
*/
|
|
disposeInternal() {
|
|
delete this.layer_;
|
|
super.disposeInternal();
|
|
}
|
|
};
|
|
var Layer_default = LayerRenderer;
|
|
|
|
export {
|
|
Layer_default
|
|
};
|
|
//# sourceMappingURL=chunk-C66424RK.js.map
|