add files

assets/wvbrowser_ui/controls_ui/favorites.js

@@ -0,0 +1,72 @@
+function isFavorite(uri, callback) {
+    queryDB((db) => {
+        let transaction = db.transaction(['favorites']);
+        let favoritesStore = transaction.objectStore('favorites');
+        let favoriteStatusRequest = favoritesStore.get(uri);
+
+        favoriteStatusRequest.onerror = function(event) {
+            console.log(`Could not query for ${uri}: ${event.target.error.message}`);
+        };
+
+        favoriteStatusRequest.onsuccess = function() {
+            callback(favoriteStatusRequest.result);
+        };
+    });
+}
+
+function addFavorite(favorite, callback) {
+    queryDB((db) => {
+        let transaction = db.transaction(['favorites'], 'readwrite');
+        let favoritesStore = transaction.objectStore('favorites');
+        let addFavoriteRequest = favoritesStore.add(favorite);
+
+        addFavoriteRequest.onerror = function(event) {
+            console.log(`Could not add favorite with key: ${favorite.uri}`);
+            console.log(event.target.error.message);
+        };
+
+        addFavoriteRequest.onsuccess = function(event) {
+            if (callback) {
+                callback();
+            }
+        };
+    });
+}
+
+function removeFavorite(key, callback) {
+    queryDB((db) => {
+        let transaction = db.transaction(['favorites'], 'readwrite');
+        let favoritesStore = transaction.objectStore('favorites');
+        let removeFavoriteRequest = favoritesStore.delete(key);
+
+        removeFavoriteRequest.onerror = function(event) {
+            console.log(`Could not remove favorite with key: ${key}`);
+            console.log(event.target.error.message);
+        };
+
+        removeFavoriteRequest.onsuccess = function(event) {
+            if (callback) {
+                callback();
+            }
+        };
+    });
+}
+
+function getFavoritesAsJson(callback) {
+    queryDB((db) => {
+        let transaction = db.transaction(['favorites']);
+        let favoritesStore = transaction.objectStore('favorites');
+        let getFavoritesRequest = favoritesStore.getAll();
+
+        getFavoritesRequest.onerror = function(event) {
+            console.log(`Could retrieve favorites`);
+            console.log(event.target.error.message);
+        };
+
+        getFavoritesRequest.onsuccess = function(event) {
+            if (callback) {
+                callback(getFavoritesRequest.result);
+            }
+        };
+    });
+}