Imports cased like the filename

2017-12-11 16:26:11 -07:00
parent 46fd03047b
commit 1cdb6a66f0
287 changed files with 1 additions and 2 deletions
--- a/src/ol/Image.js
+++ b/src/ol/Image.js
@@ -0,0 +1,136 @@
+goog.provide('ol.Image');
+
+goog.require('ol');
+goog.require('ol.ImageBase');
+goog.require('ol.ImageState');
+goog.require('ol.events');
+goog.require('ol.events.EventType');
+goog.require('ol.extent');
+
+
+/**
+ * @constructor
+ * @extends {ol.ImageBase}
+ * @param {ol.Extent} extent Extent.
+ * @param {number|undefined} resolution Resolution.
+ * @param {number} pixelRatio Pixel ratio.
+ * @param {string} src Image source URI.
+ * @param {?string} crossOrigin Cross origin.
+ * @param {ol.ImageLoadFunctionType} imageLoadFunction Image load function.
+ */
+ol.Image = function(extent, resolution, pixelRatio, src, crossOrigin, imageLoadFunction) {
+
+  ol.ImageBase.call(this, extent, resolution, pixelRatio, ol.ImageState.IDLE);
+
+  /**
+   * @private
+   * @type {string}
+   */
+  this.src_ = src;
+
+  /**
+   * @private
+   * @type {HTMLCanvasElement|Image|HTMLVideoElement}
+   */
+  this.image_ = new Image();
+  if (crossOrigin !== null) {
+    this.image_.crossOrigin = crossOrigin;
+  }
+
+  /**
+   * @private
+   * @type {Array.<ol.EventsKey>}
+   */
+  this.imageListenerKeys_ = null;
+
+  /**
+   * @protected
+   * @type {ol.ImageState}
+   */
+  this.state = ol.ImageState.IDLE;
+
+  /**
+   * @private
+   * @type {ol.ImageLoadFunctionType}
+   */
+  this.imageLoadFunction_ = imageLoadFunction;
+
+};
+ol.inherits(ol.Image, ol.ImageBase);
+
+
+/**
+ * @inheritDoc
+ * @api
+ */
+ol.Image.prototype.getImage = function() {
+  return this.image_;
+};
+
+
+/**
+ * Tracks loading or read errors.
+ *
+ * @private
+ */
+ol.Image.prototype.handleImageError_ = function() {
+  this.state = ol.ImageState.ERROR;
+  this.unlistenImage_();
+  this.changed();
+};
+
+
+/**
+ * Tracks successful image load.
+ *
+ * @private
+ */
+ol.Image.prototype.handleImageLoad_ = function() {
+  if (this.resolution === undefined) {
+    this.resolution = ol.extent.getHeight(this.extent) / this.image_.height;
+  }
+  this.state = ol.ImageState.LOADED;
+  this.unlistenImage_();
+  this.changed();
+};
+
+
+/**
+ * Load the image or retry if loading previously failed.
+ * Loading is taken care of by the tile queue, and calling this method is
+ * only needed for preloading or for reloading in case of an error.
+ * @override
+ * @api
+ */
+ol.Image.prototype.load = function() {
+  if (this.state == ol.ImageState.IDLE || this.state == ol.ImageState.ERROR) {
+    this.state = ol.ImageState.LOADING;
+    this.changed();
+    this.imageListenerKeys_ = [
+      ol.events.listenOnce(this.image_, ol.events.EventType.ERROR,
+          this.handleImageError_, this),
+      ol.events.listenOnce(this.image_, ol.events.EventType.LOAD,
+          this.handleImageLoad_, this)
+    ];
+    this.imageLoadFunction_(this, this.src_);
+  }
+};
+
+
+/**
+ * @param {HTMLCanvasElement|Image|HTMLVideoElement} image Image.
+ */
+ol.Image.prototype.setImage = function(image) {
+  this.image_ = image;
+};
+
+
+/**
+ * Discards event handlers which listen for load completion or errors.
+ *
+ * @private
+ */
+ol.Image.prototype.unlistenImage_ = function() {
+  this.imageListenerKeys_.forEach(ol.events.unlistenByKey);
+  this.imageListenerKeys_ = null;
+};