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-rw-r--r--ext/bg/js/dictionary.js42
1 files changed, 33 insertions, 9 deletions
diff --git a/ext/bg/js/dictionary.js b/ext/bg/js/dictionary.js
index 0c5e4c4a..20a94f8f 100644
--- a/ext/bg/js/dictionary.js
+++ b/ext/bg/js/dictionary.js
@@ -19,24 +19,34 @@
class Dictionary {
constructor() {
+ this.db = null;
this.entities = null;
- this.db = new Dexie('dict');
- }
-
- existsDb() {
- return Dexie.exists('dict');
}
initDb() {
- this.entities = null;
+ this.db = new Dexie('dict');
this.db.version(1).stores({
terms: '++id,expression,reading',
entities: '++,name',
kanji: '++,character'
});
+
+ this.entities = null;
+ }
+
+ deleteDb() {
+ return this.db === null ? Promise.resolve() : this.db.delete();
+ }
+
+ existsDb() {
+ return Dexie.exists('dict');
}
findTerm(term) {
+ if (this.db === null) {
+ return Promise.reject('database not initialized');
+ }
+
const results = [];
return this.db.terms.where('expression').equals(term).or('reading').equals(term).each(row => {
results.push({
@@ -58,6 +68,10 @@ class Dictionary {
}
findKanji(kanji) {
+ if (this.db === null) {
+ return Promise.reject('database not initialized');
+ }
+
const results = [];
return this.db.kanji.where('character').equals(kanji).each(row => {
results.push({
@@ -71,8 +85,12 @@ class Dictionary {
}
getEntities(tags) {
+ if (this.db === null) {
+ return Promise.reject('database not initialized');
+ }
+
if (this.entities !== null) {
- return this.entities;
+ return Promise.resolve(this.entities);
}
return this.db.entities.toArray(rows => {
@@ -86,8 +104,11 @@ class Dictionary {
}
importTermDict(indexUrl) {
- const indexDir = indexUrl.slice(0, indexUrl.lastIndexOf('/'));
+ if (this.db === null) {
+ return Promise.reject('database not initialized');
+ }
+ const indexDir = indexUrl.slice(0, indexUrl.lastIndexOf('/'));
return loadJson(indexUrl).then(index => {
const entities = [];
for (const [name, value] of index.ents) {
@@ -129,8 +150,11 @@ class Dictionary {
}
importKanjiDict(indexUrl) {
- const indexDir = indexUrl.slice(0, indexUrl.lastIndexOf('/'));
+ if (this.db === null) {
+ return Promise.reject('database not initialized');
+ }
+ const indexDir = indexUrl.slice(0, indexUrl.lastIndexOf('/'));
return loadJson(indexUrl).then(index => {
const loaders = [];
for (let i = 1; i <= index.banks; ++i) {