Update ol.Tile

src/ol/Tile.js

@@ -1,172 +0,0 @@
-goog.provide('ol.Tile');
-
-goog.require('goog.events');
-goog.require('goog.asserts');
-goog.require('ol.Bounds');
-goog.require('ol.event.Events');
-
-/**
- * The Tile class.
- * @constructor
- * @param {string} url
- * @param {ol.Bounds|undefined} opt_bounds
- */
-ol.Tile = function(url, opt_bounds) {
-
-    /**
-     * @private
-     * @type {string}
-     */
-    this.url_ = url;
-
-    /**
-     * @private
-     * @type {ol.Bounds|undefined}
-     */
-    this.bounds_ = opt_bounds;
-
-    /**
-     * @private
-     * @type {boolean}
-     */
-    this.loaded_ = false;
-
-    /**
-     * @private
-     * @type {boolean}
-     */
-    this.loading_ = false;
-
-    /**
-     * @private
-     * @type {HTMLImageElement}
-     */
-    this.img_ = this.createImage();
-    goog.events.listenOnce(this.img_, goog.events.EventType.LOAD,
-                           this.handleImageLoad, false, this);
-    goog.events.listenOnce(this.img_, goog.events.EventType.ERROR,
-                           this.handleImageError, false, this);
-
-    /**
-     * @private
-     * @type {ol.event.Events}
-     */
-    this.events_ = new ol.event.Events(this);
-};
-
-/**
- * @protected
- * @return {HTMLImageElement}
- */
-ol.Tile.prototype.createImage = function() {
-    // overriden by subclasses
-};
-
-/**
- * Load the tile. A tile should loaded only once.
- */
-ol.Tile.prototype.load = function() {
-    goog.asserts.assert(!this.loaded_ && !this.loading_);
-    this.loading_ = true;
-    this.img_.src = this.url_;
-};
-
-/**
- * Get the tile url.
- * @return {string}
- */
-ol.Tile.prototype.getUrl = function() {
-    return this.url_;
-};
-
-/**
- * Get the tile bounds.
- * @return {ol.Bounds|undefined}
- */
-ol.Tile.prototype.getBounds = function() {
-    return this.bounds_;
-};
-
-/**
- * Get the tile image.
- * @return {HTMLImageElement}
- */
-ol.Tile.prototype.getImg = function() {
-    return this.img_;
-};
-
-/**
- * Handle load event on the image.
- * @param {goog.events.BrowserEvent} evt Event.
- */
-ol.Tile.prototype.handleImageLoad = function(evt) {
-    this.loading_ = false;
-    this.loaded_ = true;
-    this.img_.style.visibility = "inherit";
-    this.img_.style.opacity = 1; // TODO: allow for layer opacity
-    this.events_.triggerEvent('load');
-};
-
-/**
- * Handle load error event on the image.
- * @param {goog.events.BrowserEvent} evt Event.
- */
-ol.Tile.prototype.handleImageError = function(evt) {
-    this.loading_ = false;
-    this.events_.triggerEvent('error');
-};
-
-/**
- * Is the tile loaded already?
- * @return {boolean}
- */
-ol.Tile.prototype.isLoaded = function() {
-    return this.loaded_;
-};
-
-/**
- * Is the tile being loaded?
- * @return {boolean}
- */
-ol.Tile.prototype.isLoading = function() {
-    return this.loading_;
-};
-
-/**
- *
- */
-ol.Tile.prototype.destroy = function() {
-    this.events_.triggerEvent('destroy');
-};
-
-/**
- * Create a tile constructor, for specific width and height values
- * for the tiles.
- * @param {number} width
- * @param {number} height
- * @return {function(new:ol.Tile, string, ol.Bounds=)}
- */
-ol.Tile.createConstructor = function(width, height) {
-    /**
-     * @constructor
-     * @extends {ol.Tile}
-     */
-    var Tile = function(url, opt_bounds) {
-        goog.base(this, url, opt_bounds);
-    };
-    goog.inherits(Tile, ol.Tile);
-    /** @inheritDoc */
-    Tile.prototype.createImage = (function() {
-        var img = document.createElement("img");
-        img.className = "olTile";
-        img.style.position = "absolute";
-        img.style.width = width + "px";
-        img.style.height = height + "px";
-        img.style.opacity = 0;
-        img.src = "data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=";
-        return function() {
-            return img.cloneNode(false);
-        };
-    })();
-    return Tile;
-};