Pluggable renderers

src/ol/plugins.js

@@ -0,0 +1,73 @@
+goog.provide('ol.plugins');
+
+goog.require('ol.PluginType');
+
+/**
+ * The registry of map renderer plugins.
+ * @type {Array<olx.MapRendererPlugin>}
+ * @private
+ */
+ol.plugins.mapRendererPlugins_ = [];
+
+
+/**
+ * Get all registered map renderer plugins.
+ * @return {Array<olx.MapRendererPlugin>} The registered map renderer plugins.
+ */
+ol.plugins.getMapRendererPlugins = function() {
+  return ol.plugins.mapRendererPlugins_;
+};
+
+
+/**
+ * The registry of layer renderer plugins.
+ * @type {Array<olx.LayerRendererPlugin>}
+ * @private
+ */
+ol.plugins.layerRendererPlugins_ = [];
+
+
+/**
+ * Get all registered layer renderer plugins.
+ * @return {Array<olx.LayerRendererPlugin>} The registered layer renderer plugins.
+ */
+ol.plugins.getLayerRendererPlugins = function() {
+  return ol.plugins.layerRendererPlugins_;
+};
+
+
+/**
+ * Register a plugin.
+ * @param {ol.PluginType} type The plugin type.
+ * @param {*} plugin The plugin.
+ */
+ol.plugins.register = function(type, plugin) {
+  var plugins;
+  switch (type) {
+    case ol.PluginType.MAP_RENDERER: {
+      plugins = ol.plugins.mapRendererPlugins_;
+      plugins.push(/** @type {olx.MapRendererPlugin} */ (plugin));
+      break;
+    }
+    case ol.PluginType.LAYER_RENDERER: {
+      plugins = ol.plugins.layerRendererPlugins_;
+      plugins.push(/** @type {olx.LayerRendererPlugin} */ (plugin));
+      break;
+    }
+    default: {
+      throw new Error('Unsupported plugin type: ' + type);
+    }
+  }
+};
+
+
+/**
+ * Register multiple plugins.
+ * @param {ol.PluginType} type The plugin type.
+ * @param {Array} plugins The plugins.
+ */
+ol.plugins.registerMultiple = function(type, plugins) {
+  for (var i = 0, ii = plugins.length; i < ii; ++i) {
+    ol.plugins.register(type, plugins[i]);
+  }
+};