Software: Apache. PHP/5.5.15 uname -a: Windows NT SVR-DMZ 6.1 build 7600 (Windows Server 2008 R2 Enterprise Edition) i586 SYSTEM Safe-mode: OFF (not secure) C:\dmz\phpMyAdmin\js\openlayers\src\openlayers\lib\OpenLayers\Strategy\ drwxrwxrwx |
Viewing file: Fixed.js (4 KB) -rw-rw-rw- Select action/file-type: (+) | (+) | (+) | Code (+) | Session (+) | (+) | SDB (+) | (+) | (+) | (+) | (+) | (+) | /* Copyright (c) 2006-2010 by OpenLayers Contributors (see authors.txt for * full list of contributors). Published under the Clear BSD license. * See http://svn.openlayers.org/trunk/openlayers/license.txt for the * full text of the license. */ /** * @requires OpenLayers/Strategy.js */ /** * Class: OpenLayers.Strategy.Fixed * A simple strategy that requests features once and never requests new data. * * Inherits from: * - <OpenLayers.Strategy> */ OpenLayers.Strategy.Fixed = OpenLayers.Class(OpenLayers.Strategy, { /** * APIProperty: preload * {Boolean} Load data before layer made visible. Enabling this may result * in considerable overhead if your application loads many data layers * that are not visible by default. Default is false. */ preload: false, /** * Constructor: OpenLayers.Strategy.Fixed * Create a new Fixed strategy. * * Parameters: * options - {Object} Optional object whose properties will be set on the * instance. */ initialize: function(options) { OpenLayers.Strategy.prototype.initialize.apply(this, [options]); }, /** * APIMethod: destroy * Clean up the strategy. */ destroy: function() { OpenLayers.Strategy.prototype.destroy.apply(this, arguments); }, /** * Method: activate * Activate the strategy: load data or add listener to load when visible * * Returns: * {Boolean} True if the strategy was successfully activated or false if * the strategy was already active. */ activate: function() { if(OpenLayers.Strategy.prototype.activate.apply(this, arguments)) { this.layer.events.on({ "refresh": this.load, scope: this }); if(this.layer.visibility == true || this.preload) { this.load(); } else { this.layer.events.on({ "visibilitychanged": this.load, scope: this }); } return true; } return false; }, /** * Method: deactivate * Deactivate the strategy. Undo what is done in <activate>. * * Returns: * {Boolean} The strategy was successfully deactivated. */ deactivate: function() { var deactivated = OpenLayers.Strategy.prototype.deactivate.call(this); if(deactivated) { this.layer.events.un({ "refresh": this.load, "visibilitychanged": this.load, scope: this }); } return deactivated; }, /** * Method: load * Tells protocol to load data and unhooks the visibilitychanged event * * Parameters: * options - {Object} options to pass to protocol read. */ load: function(options) { this.layer.events.triggerEvent("loadstart"); this.layer.protocol.read(OpenLayers.Util.applyDefaults({ callback: this.merge, filter: this.layer.filter, scope: this }, options)); this.layer.events.un({ "visibilitychanged": this.load, scope: this }); }, /** * Method: merge * Add all features to the layer. */ merge: function(resp) { this.layer.destroyFeatures(); var features = resp.features; if (features && features.length > 0) { var remote = this.layer.projection; var local = this.layer.map.getProjectionObject(); if(!local.equals(remote)) { var geom; for(var i=0, len=features.length; i<len; ++i) { geom = features[i].geometry; if(geom) { geom.transform(remote, local); } } } this.layer.addFeatures(features); } this.layer.events.triggerEvent("loadend"); }, CLASS_NAME: "OpenLayers.Strategy.Fixed" }); |
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