845 lines
20 KiB
JavaScript
845 lines
20 KiB
JavaScript
// FIXME recheck layer/map projection compatability when projection changes
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// FIXME layer renderers should skip when they can't reproject
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// FIXME add tilt and height?
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goog.provide('ol.Map');
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goog.provide('ol.MapEventType');
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goog.provide('ol.MapProperty');
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goog.require('goog.array');
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goog.require('goog.debug.Logger');
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goog.require('goog.dispose');
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goog.require('goog.dom');
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goog.require('goog.dom.ViewportSizeMonitor');
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goog.require('goog.events');
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goog.require('goog.events.BrowserEvent');
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goog.require('goog.events.Event');
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goog.require('goog.events.EventType');
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goog.require('goog.events.KeyHandler');
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goog.require('goog.events.KeyHandler.EventType');
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goog.require('goog.events.MouseWheelEvent');
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goog.require('goog.events.MouseWheelHandler');
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goog.require('goog.events.MouseWheelHandler.EventType');
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goog.require('goog.functions');
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goog.require('goog.fx.anim');
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goog.require('goog.fx.anim.Animated');
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goog.require('goog.object');
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goog.require('ol.Collection');
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goog.require('ol.Color');
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goog.require('ol.Constraints');
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goog.require('ol.Coordinate');
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goog.require('ol.Extent');
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goog.require('ol.MapBrowserEvent');
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goog.require('ol.Object');
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goog.require('ol.Pixel');
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goog.require('ol.Projection');
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goog.require('ol.Size');
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goog.require('ol.TransformFunction');
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goog.require('ol.interaction.Interaction');
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goog.require('ol.renderer.Layer');
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/**
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* @enum {string}
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*/
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ol.MapEventType = {
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POSTRENDER: 'postrender'
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};
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/**
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* @enum {string}
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*/
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ol.MapProperty = {
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BACKGROUND_COLOR: 'backgroundColor',
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CENTER: 'center',
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INTERACTIONS: 'interactions',
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LAYERS: 'layers',
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PROJECTION: 'projection',
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RESOLUTION: 'resolution',
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ROTATION: 'rotation',
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SIZE: 'size',
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USER_PROJECTION: 'userProjection'
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};
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/**
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* @enum {number}
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*/
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ol.MapPaneZIndex = {
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VIEWPORT: 1000
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};
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/**
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* @constructor
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* @extends {ol.Object}
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* @implements {goog.fx.anim.Animated}
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* @param {Element} container Container.
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* @param {ol.MapOptionsLiteral} mapOptionsLiteral Map options literal.
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*/
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ol.Map = function(container, mapOptionsLiteral) {
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goog.base(this);
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if (goog.DEBUG) {
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/**
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* @protected
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* @type {goog.debug.Logger}
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*/
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this.logger = goog.debug.Logger.getLogger('ol.map.' + goog.getUid(this));
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}
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var mapOptions = ol.MapOptions.create(mapOptionsLiteral);
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/**
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* @type {ol.TransformFunction}
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* @private
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*/
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this.userToMapTransform_ = ol.Projection.identityTransform;
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/**
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* @type {ol.TransformFunction}
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* @private
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*/
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this.mapToUserTransform_ = ol.Projection.cloneTransform;
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/**
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* @private
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* @type {boolean}
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*/
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this.animatedRenderer_ = false;
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/**
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* @private
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* @type {number}
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*/
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this.animatingCount_ = 0;
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/**
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* @private
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* @type {number}
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*/
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this.freezeRenderingCount_ = 0;
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/**
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* @private
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* @type {boolean}
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*/
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this.dirty_ = false;
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/**
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* @private
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* @type {Element}
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*/
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this.container_ = container;
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/**
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* @private
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* @type {ol.Constraints}
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*/
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this.constraints_ = mapOptions.constraints;
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/**
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* @private
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* @type {Element}
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*/
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this.viewport_ = goog.dom.createElement(goog.dom.TagName.DIV);
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this.viewport_.className = 'ol-viewport';
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this.viewport_.style.position = 'relative';
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this.viewport_.style.overflow = 'hidden';
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this.viewport_.style.width = '100%';
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this.viewport_.style.height = '100%';
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this.viewport_.style.zIndex = ol.MapPaneZIndex.VIEWPORT;
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goog.dom.appendChild(container, this.viewport_);
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var mapBrowserEventHandler = new ol.MapBrowserEventHandler(this);
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goog.events.listen(mapBrowserEventHandler, [
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ol.MapBrowserEvent.EventType.CLICK,
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ol.MapBrowserEvent.EventType.DBLCLICK,
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ol.MapBrowserEvent.EventType.DRAGSTART,
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ol.MapBrowserEvent.EventType.DRAG,
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ol.MapBrowserEvent.EventType.DRAGEND
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], this.handleMapBrowserEvent, false, this);
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this.registerDisposable(mapBrowserEventHandler);
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// FIXME we probably shouldn't listen on document...
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var keyHandler = new goog.events.KeyHandler(document);
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goog.events.listen(keyHandler, goog.events.KeyHandler.EventType.KEY,
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this.handleBrowserEvent, false, this);
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this.registerDisposable(keyHandler);
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var mouseWheelHandler = new goog.events.MouseWheelHandler(this.viewport_);
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goog.events.listen(mouseWheelHandler,
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goog.events.MouseWheelHandler.EventType.MOUSEWHEEL,
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this.handleBrowserEvent, false, this);
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this.registerDisposable(mouseWheelHandler);
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/**
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* @type {ol.renderer.Map}
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* @private
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*/
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this.renderer_ = new mapOptions.rendererConstructor(this.viewport_, this);
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this.registerDisposable(this.renderer_);
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/**
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* @private
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*/
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this.viewportSizeMonitor_ = new goog.dom.ViewportSizeMonitor();
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goog.events.listen(this.viewportSizeMonitor_, goog.events.EventType.RESIZE,
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this.handleBrowserWindowResize, false, this);
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goog.events.listen(
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this, ol.Object.getChangedEventType(ol.MapProperty.PROJECTION),
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this.handleProjectionChanged, false, this);
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goog.events.listen(
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this, ol.Object.getChangedEventType(ol.MapProperty.USER_PROJECTION),
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this.handleUserProjectionChanged, false, this);
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this.setValues(mapOptions.values);
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this.handleBrowserWindowResize();
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};
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goog.inherits(ol.Map, ol.Object);
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/**
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* @return {boolean} Can rotate.
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*/
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ol.Map.prototype.canRotate = function() {
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return this.renderer_.canRotate();
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};
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/**
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* @param {ol.Extent} extent Extent.
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*/
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ol.Map.prototype.fitExtent = function(extent) {
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this.withFrozenRendering(function() {
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this.setCenter(extent.getCenter());
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var resolution = this.getResolutionForExtent(extent);
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resolution = this.constraints_.resolution(resolution, 0);
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this.setResolution(resolution);
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if (this.canRotate()) {
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this.setRotation(0);
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}
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}, this);
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};
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/**
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* @param {ol.Extent} userExtent Extent in user projection.
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*/
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ol.Map.prototype.fitUserExtent = function(userExtent) {
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this.fitExtent(userExtent.transform(this.userToMapTransform_));
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};
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/**
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* Freeze rendering.
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*/
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ol.Map.prototype.freezeRendering = function() {
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++this.freezeRenderingCount_;
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};
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/**
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* @return {ol.Color|undefined} Background color.
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*/
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ol.Map.prototype.getBackgroundColor = function() {
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return /** @type {ol.Color|undefined} */ (
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this.get(ol.MapProperty.BACKGROUND_COLOR));
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};
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goog.exportProperty(
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ol.Map.prototype,
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'getBackgroundColor',
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ol.Map.prototype.getBackgroundColor);
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/**
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* @return {ol.Coordinate|undefined} Center.
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*/
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ol.Map.prototype.getCenter = function() {
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return /** @type {ol.Coordinate} */ this.get(ol.MapProperty.CENTER);
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};
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goog.exportProperty(
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ol.Map.prototype,
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'getCenter',
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ol.Map.prototype.getCenter);
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/**
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* @return {Element} Container.
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*/
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ol.Map.prototype.getContainer = function() {
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return this.container_;
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};
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/**
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* @param {ol.Pixel} pixel Pixel.
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* @return {ol.Coordinate} Coordinate.
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*/
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ol.Map.prototype.getCoordinateFromPixel = function(pixel) {
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return this.isDef() ? this.renderer_.getCoordinateFromPixel(pixel) : null;
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};
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/**
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* @return {ol.Extent|undefined} Extent.
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*/
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ol.Map.prototype.getExtent = function() {
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if (this.isDef()) {
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var center = this.getCenter();
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var resolution = this.getResolution();
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var size = this.getSize();
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var minX = center.x - resolution * size.width / 2;
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var minY = center.y - resolution * size.height / 2;
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var maxX = center.x + resolution * size.width / 2;
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var maxY = center.y + resolution * size.height / 2;
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return new ol.Extent(minX, minY, maxX, maxY);
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} else {
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return undefined;
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}
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};
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/**
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* @return {ol.Collection} Interactions.
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*/
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ol.Map.prototype.getInteractions = function() {
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return /** @type {ol.Collection} */ this.get(ol.MapProperty.INTERACTIONS);
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};
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goog.exportProperty(
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ol.Map.prototype,
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'getInteractions',
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ol.Map.prototype.getInteractions);
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/**
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* @return {ol.Collection} Layers.
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*/
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ol.Map.prototype.getLayers = function() {
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return /** @type {ol.Collection} */ (this.get(ol.MapProperty.LAYERS));
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};
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/**
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* @param {ol.Coordinate} coordinate Coordinate.
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* @return {ol.Pixel|undefined} Pixel.
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*/
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ol.Map.prototype.getPixelFromCoordinate = function(coordinate) {
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if (this.isDef()) {
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return this.renderer_.getPixelFromCoordinate(coordinate);
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} else {
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return undefined;
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}
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};
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/**
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* @return {ol.Projection|undefined} Projection.
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*/
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ol.Map.prototype.getProjection = function() {
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return /** @type {ol.Projection} */ this.get(ol.MapProperty.PROJECTION);
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};
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goog.exportProperty(
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ol.Map.prototype,
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'getProjection',
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ol.Map.prototype.getProjection);
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/**
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* @return {number|undefined} Resolution.
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*/
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ol.Map.prototype.getResolution = function() {
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return /** @type {number} */ this.get(ol.MapProperty.RESOLUTION);
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};
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goog.exportProperty(
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ol.Map.prototype,
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'getResolution',
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ol.Map.prototype.getResolution);
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/**
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* @param {ol.Extent} extent Extent.
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* @return {number|undefined} Resolution.
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*/
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ol.Map.prototype.getResolutionForExtent = function(extent) {
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var size = this.getSize();
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if (goog.isDef(size)) {
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var xResolution = (extent.maxX - extent.minX) / size.width;
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var yResolution = (extent.maxY - extent.minY) / size.height;
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return Math.max(xResolution, yResolution);
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} else {
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return undefined;
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}
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};
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/**
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* @return {ol.Extent} Rotated extent.
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*/
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ol.Map.prototype.getRotatedExtent = function() {
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goog.asserts.assert(this.isDef());
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var center = /** @type {!ol.Coordinate} */ this.getCenter();
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var resolution = this.getResolution();
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var rotation = this.getRotation() || 0;
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var size = this.getSize();
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var xScale = resolution * size.width / 2;
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var yScale = resolution * size.height / 2;
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var corners = [
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new ol.Coordinate(-xScale, -yScale),
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new ol.Coordinate(-xScale, yScale),
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new ol.Coordinate(xScale, -yScale),
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new ol.Coordinate(xScale, yScale)
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];
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goog.array.forEach(corners, function(corner) {
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corner.rotate(rotation);
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corner.add(center);
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});
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return ol.Extent.boundingExtent.apply(null, corners);
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};
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/**
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* @return {number|undefined} Rotation.
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*/
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ol.Map.prototype.getRotation = function() {
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return /** @type {number|undefined} */ this.get(ol.MapProperty.ROTATION);
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};
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goog.exportProperty(
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ol.Map.prototype,
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'getRotation',
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ol.Map.prototype.getRotation);
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/**
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* @return {ol.Size|undefined} Size.
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*/
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ol.Map.prototype.getSize = function() {
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return /** @type {ol.Size|undefined} */ this.get(ol.MapProperty.SIZE);
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};
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goog.exportProperty(
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ol.Map.prototype,
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'getSize',
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ol.Map.prototype.getSize);
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/**
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* @return {ol.Coordinate|undefined} Center in user projection.
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*/
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ol.Map.prototype.getUserCenter = function() {
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var center = this.getCenter();
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if (goog.isDef(center)) {
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return this.mapToUserTransform_(center);
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} else {
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return undefined;
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}
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};
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/**
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* @return {ol.Extent|undefined} Extent in user projection.
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*/
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ol.Map.prototype.getUserExtent = function() {
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var extent = this.getExtent();
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if (goog.isDef(extent)) {
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return extent.transform(this.mapToUserTransform_);
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} else {
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return undefined;
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}
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};
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/**
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* @return {ol.Projection|undefined} Projection.
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*/
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ol.Map.prototype.getUserProjection = function() {
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return /** @type {ol.Projection} */ this.get(
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ol.MapProperty.USER_PROJECTION);
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};
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goog.exportProperty(
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ol.Map.prototype,
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'getUserProjection',
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ol.Map.prototype.getUserProjection);
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/**
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* @return {Element} Viewport.
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*/
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ol.Map.prototype.getViewport = function() {
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return this.viewport_;
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};
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/**
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* @param {goog.events.BrowserEvent} browserEvent Browser event.
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* @param {string=} opt_type Type.
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*/
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ol.Map.prototype.handleBrowserEvent = function(browserEvent, opt_type) {
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var type = opt_type || browserEvent.type;
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var mapBrowserEvent = new ol.MapBrowserEvent(type, this, browserEvent);
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this.handleMapBrowserEvent(mapBrowserEvent);
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};
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/**
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* @param {ol.MapBrowserEvent} mapBrowserEvent The event to handle.
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*/
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ol.Map.prototype.handleMapBrowserEvent = function(mapBrowserEvent) {
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var interactions = this.getInteractions();
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var interactionsArray = /** @type {Array.<ol.interaction.Interaction>} */
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interactions.getArray();
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if (this.dispatchEvent(mapBrowserEvent) !== false) {
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goog.array.every(interactionsArray, function(interaction) {
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interaction.handleMapBrowserEvent(mapBrowserEvent);
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return !mapBrowserEvent.defaultPrevented;
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});
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}
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};
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/**
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* @protected
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*/
|
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ol.Map.prototype.handleProjectionChanged = function() {
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this.recalculateTransforms_();
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};
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|
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/**
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* @protected
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*/
|
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ol.Map.prototype.handleUserProjectionChanged = function() {
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this.recalculateTransforms_();
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};
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|
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|
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/**
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* @protected
|
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*/
|
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ol.Map.prototype.handleBrowserWindowResize = function() {
|
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var size = new ol.Size(this.container_.clientWidth,
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this.container_.clientHeight);
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this.setSize(size);
|
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};
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|
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/**
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* @return {boolean} Is animating.
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*/
|
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ol.Map.prototype.isAnimating = function() {
|
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return this.animatingCount_ > 0;
|
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};
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|
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|
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/**
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* @return {boolean} Is defined.
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*/
|
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ol.Map.prototype.isDef = function() {
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return goog.isDefAndNotNull(this.getCenter()) &&
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goog.isDef(this.getResolution()) &&
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goog.isDefAndNotNull(this.getSize());
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};
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|
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|
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/**
|
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* @inheritDoc
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*/
|
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ol.Map.prototype.onAnimationFrame = function() {
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if (goog.DEBUG) {
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this.logger.info('onAnimationFrame');
|
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}
|
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this.renderFrame_();
|
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};
|
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|
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|
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/**
|
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* @private
|
|
*/
|
|
ol.Map.prototype.recalculateTransforms_ = function() {
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var projection = this.getProjection();
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var userProjection = this.getUserProjection();
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if (goog.isDefAndNotNull(projection) &&
|
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goog.isDefAndNotNull(userProjection)) {
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this.mapToUserTransform_ = ol.Projection.getTransform(
|
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projection, userProjection);
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this.userToMapTransform_ = ol.Projection.getTransform(
|
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userProjection, projection);
|
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} else {
|
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this.mapToUserTransform_ = ol.Projection.cloneTransform;
|
|
this.userToMapTransform_ = ol.Projection.identityTransform;
|
|
}
|
|
};
|
|
|
|
|
|
/**
|
|
* Render.
|
|
*/
|
|
ol.Map.prototype.render = function() {
|
|
if (this.animatingCount_ < 1) {
|
|
if (this.freezeRenderingCount_ === 0) {
|
|
this.renderFrame_();
|
|
} else {
|
|
this.dirty_ = true;
|
|
}
|
|
}
|
|
};
|
|
|
|
|
|
/**
|
|
* @private
|
|
*/
|
|
ol.Map.prototype.renderFrame_ = function() {
|
|
if (goog.DEBUG) {
|
|
this.logger.info('renderFrame_');
|
|
}
|
|
var animatedRenderer = this.renderer_.render();
|
|
this.dirty_ = false;
|
|
if (animatedRenderer != this.animatedRenderer_) {
|
|
if (animatedRenderer) {
|
|
this.startAnimating();
|
|
} else {
|
|
this.stopAnimating();
|
|
}
|
|
this.animatedRenderer_ = animatedRenderer;
|
|
}
|
|
if (goog.DEBUG) {
|
|
this.logger.info('postrender');
|
|
}
|
|
this.dispatchEvent(ol.MapEventType.POSTRENDER);
|
|
};
|
|
|
|
|
|
/**
|
|
* @param {number|undefined} rotation Rotation.
|
|
* @param {number} delta Delta.
|
|
*/
|
|
ol.Map.prototype.rotate = function(rotation, delta) {
|
|
rotation = this.constraints_.rotation(rotation, delta);
|
|
this.setRotation(rotation);
|
|
};
|
|
|
|
|
|
/**
|
|
* @param {ol.Color} backgroundColor Background color.
|
|
*/
|
|
ol.Map.prototype.setBackgroundColor = function(backgroundColor) {
|
|
this.set(ol.MapProperty.BACKGROUND_COLOR, backgroundColor);
|
|
};
|
|
goog.exportProperty(
|
|
ol.Map.prototype,
|
|
'setBackgroundColor',
|
|
ol.Map.prototype.setBackgroundColor);
|
|
|
|
|
|
/**
|
|
* @param {ol.Coordinate|undefined} center Center.
|
|
*/
|
|
ol.Map.prototype.setCenter = function(center) {
|
|
this.set(ol.MapProperty.CENTER, center);
|
|
};
|
|
goog.exportProperty(
|
|
ol.Map.prototype,
|
|
'setCenter',
|
|
ol.Map.prototype.setCenter);
|
|
|
|
|
|
/**
|
|
* @param {ol.Collection} interactions Interactions.
|
|
*/
|
|
ol.Map.prototype.setInteractions = function(interactions) {
|
|
this.set(ol.MapProperty.INTERACTIONS, interactions);
|
|
};
|
|
goog.exportProperty(
|
|
ol.Map.prototype,
|
|
'setInteractions',
|
|
ol.Map.prototype.setInteractions);
|
|
|
|
|
|
/**
|
|
* @param {ol.Collection} layers Layers.
|
|
*/
|
|
ol.Map.prototype.setLayers = function(layers) {
|
|
this.set(ol.MapProperty.LAYERS, layers);
|
|
};
|
|
goog.exportProperty(
|
|
ol.Map.prototype,
|
|
'setLayers',
|
|
ol.Map.prototype.setLayers);
|
|
|
|
|
|
/**
|
|
* @param {ol.Projection} projection Projection.
|
|
*/
|
|
ol.Map.prototype.setProjection = function(projection) {
|
|
this.set(ol.MapProperty.PROJECTION, projection);
|
|
};
|
|
goog.exportProperty(
|
|
ol.Map.prototype,
|
|
'setProjection',
|
|
ol.Map.prototype.setProjection);
|
|
|
|
|
|
/**
|
|
* @param {number|undefined} resolution Resolution.
|
|
*/
|
|
ol.Map.prototype.setResolution = function(resolution) {
|
|
this.set(ol.MapProperty.RESOLUTION, resolution);
|
|
};
|
|
goog.exportProperty(
|
|
ol.Map.prototype,
|
|
'setResolution',
|
|
ol.Map.prototype.setResolution);
|
|
|
|
|
|
/**
|
|
* @param {number|undefined} rotation Rotation.
|
|
*/
|
|
ol.Map.prototype.setRotation = function(rotation) {
|
|
this.set(ol.MapProperty.ROTATION, rotation);
|
|
};
|
|
goog.exportProperty(
|
|
ol.Map.prototype,
|
|
'setRotation',
|
|
ol.Map.prototype.setRotation);
|
|
|
|
|
|
/**
|
|
* @param {ol.Size} size Size.
|
|
*/
|
|
ol.Map.prototype.setSize = function(size) {
|
|
this.set(ol.MapProperty.SIZE, size);
|
|
};
|
|
goog.exportProperty(
|
|
ol.Map.prototype,
|
|
'setSize',
|
|
ol.Map.prototype.setSize);
|
|
|
|
|
|
/**
|
|
* @param {ol.Coordinate} userCenter Center in user projection.
|
|
*/
|
|
ol.Map.prototype.setUserCenter = function(userCenter) {
|
|
this.setCenter(this.userToMapTransform_(userCenter));
|
|
};
|
|
goog.exportProperty(
|
|
ol.Map.prototype,
|
|
'setUserCenter',
|
|
ol.Map.prototype.setUserCenter);
|
|
|
|
|
|
/**
|
|
* @param {ol.Projection} userProjection User projection.
|
|
*/
|
|
ol.Map.prototype.setUserProjection = function(userProjection) {
|
|
this.set(ol.MapProperty.USER_PROJECTION, userProjection);
|
|
};
|
|
goog.exportProperty(
|
|
ol.Map.prototype,
|
|
'setUserProjection',
|
|
ol.Map.prototype.setUserProjection);
|
|
|
|
|
|
/**
|
|
* Start animating.
|
|
*/
|
|
ol.Map.prototype.startAnimating = function() {
|
|
if (++this.animatingCount_ == 1) {
|
|
if (goog.DEBUG) {
|
|
this.logger.info('startAnimating');
|
|
}
|
|
goog.fx.anim.registerAnimation(this);
|
|
}
|
|
};
|
|
|
|
|
|
/**
|
|
* Stop animating.
|
|
*/
|
|
ol.Map.prototype.stopAnimating = function() {
|
|
goog.asserts.assert(this.animatingCount_ > 0);
|
|
if (--this.animatingCount_ === 0) {
|
|
if (goog.DEBUG) {
|
|
this.logger.info('stopAnimating');
|
|
}
|
|
goog.fx.anim.unregisterAnimation(this);
|
|
}
|
|
};
|
|
|
|
|
|
/**
|
|
* Unfreeze rendering.
|
|
*/
|
|
ol.Map.prototype.unfreezeRendering = function() {
|
|
goog.asserts.assert(this.freezeRenderingCount_ > 0);
|
|
if (--this.freezeRenderingCount_ === 0 &&
|
|
this.animatingCount_ < 1 &&
|
|
this.dirty_) {
|
|
this.renderFrame_();
|
|
}
|
|
};
|
|
|
|
|
|
/**
|
|
* @param {function(this: T)} f Function.
|
|
* @param {T=} opt_obj Object.
|
|
* @template T
|
|
*/
|
|
ol.Map.prototype.withFrozenRendering = function(f, opt_obj) {
|
|
this.freezeRendering();
|
|
try {
|
|
f.call(opt_obj);
|
|
} finally {
|
|
this.unfreezeRendering();
|
|
}
|
|
};
|
|
|
|
|
|
/**
|
|
* @private
|
|
* @param {number|undefined} resolution Resolution to go to.
|
|
* @param {ol.Coordinate=} opt_anchor Anchor coordinate.
|
|
*/
|
|
ol.Map.prototype.zoom_ = function(resolution, opt_anchor) {
|
|
if (goog.isDefAndNotNull(resolution) && goog.isDefAndNotNull(opt_anchor)) {
|
|
var anchor = opt_anchor;
|
|
var oldCenter = /** @type {!ol.Coordinate} */ this.getCenter();
|
|
var oldResolution = this.getResolution();
|
|
var x = anchor.x - resolution * (anchor.x - oldCenter.x) / oldResolution;
|
|
var y = anchor.y - resolution * (anchor.y - oldCenter.y) / oldResolution;
|
|
var center = new ol.Coordinate(x, y);
|
|
this.withFrozenRendering(function() {
|
|
this.setCenter(center);
|
|
this.setResolution(resolution);
|
|
}, this);
|
|
} else {
|
|
this.setResolution(resolution);
|
|
}
|
|
};
|
|
|
|
|
|
/**
|
|
* @param {number} delta Delta from previous zoom level.
|
|
* @param {ol.Coordinate=} opt_anchor Anchor coordinate.
|
|
*/
|
|
ol.Map.prototype.zoom = function(delta, opt_anchor) {
|
|
var resolution = this.constraints_.resolution(this.getResolution(), delta);
|
|
this.zoom_(resolution, opt_anchor);
|
|
};
|
|
|
|
|
|
/**
|
|
* @param {number|undefined} resolution Resolution to go to.
|
|
* @param {ol.Coordinate=} opt_anchor Anchor coordinate.
|
|
*/
|
|
ol.Map.prototype.zoomToResolution = function(resolution, opt_anchor) {
|
|
resolution = this.constraints_.resolution(resolution, 0);
|
|
this.zoom_(resolution, opt_anchor);
|
|
};
|