Fix query action for search

packages/gitbook-core/package.json

@@ -17,7 +17,8 @@
     "react-safe-html": "^0.3.0",
     "redux": "^3.5.2",
     "redux-thunk": "^2.1.0",
-    "reflexbox": "^2.2.2"
+    "reflexbox": "^2.2.2",
+    "whatwg-fetch": "^1.0.0"
   },
   "devDependencies": {
     "babel-cli": "^6.14.0",

packages/gitbook-core/src/index.js

@@ -1,3 +1,5 @@
+require('whatwg-fetch');
+
 const React = require('react');
 const Immutable = require('immutable');
 const Head = require('react-helmet');

packages/gitbook-core/src/lib/createContext.js

@@ -40,7 +40,7 @@ function createContext(plugins, initialState) {
 
     // Initialize the plugins
     plugins.forEach(plugin => {
-        plugin.init(store.dispatch, store.getState);
+        plugin.init(store.dispatch, store.getState, actions);
     });
 
     return GitBookContext({

packages/gitbook-plugin-lunr/.gitignore

@@ -0,0 +1,31 @@
+# Logs
+logs
+*.log
+
+# Runtime data
+pids
+*.pid
+*.seed
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+
+# Grunt intermediate storage (http://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# Compiled binary addons (http://nodejs.org/api/addons.html)
+build/Release
+
+# Dependency directory
+# Deployed apps should consider commenting this line out:
+# see https://npmjs.org/doc/faq.html#Should-I-check-my-node_modules-folder-into-git
+node_modules
+
+# vim swapfile
+*.swp
+
+# Plugin assets
+_assets

packages/gitbook-plugin-lunr/.npmignore

@@ -0,0 +1,2 @@
+# Publish assets on NPM
+!_assets

packages/gitbook-plugin-lunr/index.js

@@ -0,0 +1,97 @@
+/* eslint-disable no-var, object-shorthand */
+var lunr = require('lunr');
+var Entities = require('html-entities').AllHtmlEntities;
+
+var Html = new Entities();
+
+var searchIndex;
+
+// Called with the `this` context provided by Gitbook
+function getSearchIndex(context) {
+    if (!searchIndex) {
+        // Create search index
+        var ignoreSpecialCharacters = (
+            context.config.get('pluginsConfig.lunr.ignoreSpecialCharacters')
+            || context.config.get('lunr.ignoreSpecialCharacters')
+        );
+
+        searchIndex = lunr(function() {
+            this.ref('url');
+
+            this.field('title', { boost: 10 });
+            this.field('keywords', { boost: 15 });
+            this.field('body');
+
+            if (!ignoreSpecialCharacters) {
+                // Don't trim non words characters (to allow search such as "C++")
+                this.pipeline.remove(lunr.trimmer);
+            }
+        });
+    }
+    return searchIndex;
+}
+
+// Map of Lunr ref to document
+var documentsStore = {};
+
+var searchIndexEnabled = true;
+var indexSize = 0;
+
+module.exports = {
+    hooks: {
+        // Index each page
+        'page': function(page) {
+            if (this.output.name != 'website' || !searchIndexEnabled || page.search === false) {
+                return page;
+            }
+
+            var text, maxIndexSize;
+            maxIndexSize = this.config.get('pluginsConfig.lunr.maxIndexSize') || this.config.get('lunr.maxIndexSize');
+
+            this.log.debug.ln('index page', page.path);
+
+            text = page.content;
+            // Decode HTML
+            text = Html.decode(text);
+            // Strip HTML tags
+            text = text.replace(/(<([^>]+)>)/ig, '');
+
+            indexSize = indexSize + text.length;
+            if (indexSize > maxIndexSize) {
+                this.log.warn.ln('search index is too big, indexing is now disabled');
+                searchIndexEnabled = false;
+                return page;
+            }
+
+            var keywords = [];
+            if (page.search) {
+                keywords = page.search.keywords || [];
+            }
+
+            // Add to index
+            var doc = {
+                url: this.output.toURL(page.path),
+                title: page.title,
+                summary: page.description,
+                keywords: keywords.join(' '),
+                body: text
+            };
+
+            documentsStore[doc.url] = doc;
+            getSearchIndex(this).add(doc);
+
+            return page;
+        },
+
+        // Write index to disk
+        'finish': function() {
+            if (this.output.name != 'website') return;
+
+            this.log.debug.ln('write search index');
+            return this.output.writeFile('search_index.json', JSON.stringify({
+                index: getSearchIndex(this),
+                store: documentsStore
+            }));
+        }
+    }
+};

packages/gitbook-plugin-lunr/package.json

@@ -0,0 +1,44 @@
+{
+  "name": "gitbook-plugin-lunr",
+  "description": "Static and local index for search in GitBook",
+  "main": "index.js",
+  "browser": "./_assets/theme.js",
+  "version": "1.2.0",
+  "dependencies": {
+    "gitbook-core": "^0.0.0",
+    "html-entities": "1.2.0",
+    "lunr": "0.5.12"
+  },
+  "devDependencies": {
+    "gitbook-plugin": "*"
+  },
+  "engines": {
+    "gitbook": ">=3.0.0"
+  },
+  "gitbook": {
+    "properties": {
+        "maxIndexSize": {
+            "type": "number",
+            "title": "Limit size for the index",
+            "default": 1000000
+        },
+        "ignoreSpecialCharacters": {
+            "type": "boolean",
+            "title": "Ignore special characters in words",
+            "default": false
+        }
+    }
+  },
+  "scripts": {
+    "build-js": "gitbook-plugin build ./src/index.js ./_assets/theme.js",
+    "prepublish": "npm run build-js"
+  },
+  "homepage": "https://github.com/GitBookIO/gitbook",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/GitBookIO/gitbook.git"
+  },
+  "bugs": {
+    "url": "https://github.com/GitBookIO/gitbook/issues"
+  }
+}

packages/gitbook-plugin-lunr/src/index.js

@@ -0,0 +1,21 @@
+const GitBook = require('gitbook-core');
+const lunr = require('lunr');
+
+/**
+ * Search in the local index
+ * @param  {String} query
+ * @return {Promise<List>}
+ */
+function searchHandler(query) {
+    return [
+        { title: 'Hello world' }
+    ];
+}
+
+module.exports = GitBook.createPlugin({
+    init: (dispatch, getState, actions) => {
+        const { search } = actions;
+        dispatch(search.registerHandler('lunr', searchHandler));
+    },
+    reduce: (state, action) => state
+});

packages/gitbook-plugin-search/src/actions/search.js

@@ -17,13 +17,19 @@ function query(q) {
 
         dispatch({ type: TYPES.UPDATE_QUERY, query: q });
 
-        return Promise.reduce(handlers, (results, handler) => {
-            return Promise(handler(q))
-            .then(handlerResults => results.concat(handlerResults));
-        }, List())
-        .then(results => {
-            dispatch({ type: TYPES.UPDATE_RESULTS, query: q });
-        });
+        return Promise.reduce(
+            handlers.toArray(),
+            (results, handler) => {
+                return Promise.resolve(handler(q))
+                .then(handlerResults => results.concat(handlerResults));
+            },
+            List()
+        )
+        .then(
+            results => {
+                dispatch({ type: TYPES.UPDATE_RESULTS, query: q, results });
+            }
+        );
     };
 }
 

packages/gitbook-plugin-search/src/reducers/search.js

@@ -23,6 +23,11 @@ module.exports = (state = SearchState(), action) => {
             query: action.query
         });
 
+    case TYPES.UPDATE_RESULTS:
+        return state.merge({
+            results: action.results
+        });
+
     case TYPES.REGISTER_HANDLER:
         return state.merge({
             handlers: state.handlers.set(action.name, action.handler)