Merge pull request #184 from kiwix/refresh-only-one-book

Refresh only one book instead of all the library

resources/js/_contentManager.js

@@ -7,6 +7,17 @@ function niceBytes(x){
   return(n.toFixed(n >= 10 || unitIndex < 1 ? 0 : 2) + ' ' + units[unitIndex]);
 }
 
+function getIndexById(id) {
+    var index = 0;
+    for(var i = 0; i < app.books.length; i++) {
+        if (app.books[i]["id"] == id) {
+            index = i;
+            break;
+        }
+    }
+    return index;
+}
+
 function createDict(keys, values) {
     var d = {}
     for(var i=0; i<keys.length; i++) {
@@ -34,6 +45,22 @@ function onBooksChanged () {
   app.displayedBooksNb = 20;
 }
 
+function onOneBookChanged (id) {
+    var index = getIndexById(id);
+    contentManager.getBookInfos(id, BOOK_KEYS, function(values) {
+        var b = createDict(BOOK_KEYS, values);
+        if (b.downloadId && !downloadUpdaters.hasOwnProperty(b.id)) {
+            downloadUpdaters[b.id] = setInterval(function() { getDownloadInfo(b.id); }, 1000);
+        }
+        app.books.splice(index, 1, b);
+    });
+}
+
+function onBookRemoved (id) {
+    var index = getIndexById(id);
+    app.books.splice(index, 1);
+}
+
 downloadUpdaters = {}
 const DOWNLOAD_KEYS = ["id", "status", "followedBy", "path", "totalLength", "completedLength", "downloadSpeed", "verifiedLength"];
 function getDownloadInfo(id) {
@@ -138,6 +165,8 @@ function init() {
       }
     });
     contentManager.booksChanged.connect(onBooksChanged);
+    contentManager.oneBookChanged.connect(onOneBookChanged);
+    contentManager.bookRemoved.connect(onBookRemoved);
     contentManager.pendingRequest.connect(displayLoadIcon);
     onBooksChanged();
     displayLoadIcon(false);

src/contentmanager.cpp

@@ -123,7 +123,11 @@ QStringList ContentManager::updateDownloadInfos(QString id, const QStringList &k
         b.setPath(QDir::toNativeSeparators(tmp).toStdString());
         b.setDownloadId("");
         mp_library->save();
-        emit(mp_library->booksChanged());
+        if (!m_local) {
+            emit(oneBookChanged(id));
+        } else {
+            emit(mp_library->booksChanged());
+        }
     }
     for(auto& key: keys){
         ADD_V("id", getDid);
@@ -194,7 +198,7 @@ QString ContentManager::downloadBook(const QString &id)
     book.setDownloadId(download->getDid());
     mp_library->addBookToLibrary(book);
     mp_library->save();
-    emit(mp_library->booksChanged());
+    emit(oneBookChanged(id));
     return QString::fromStdString(download->getDid());
 }
 
@@ -214,7 +218,11 @@ void ContentManager::eraseBook(const QString& id)
     eraseBookFilesFromComputer(fileToRemove);
     mp_library->removeBookFromLibraryById(id);
     mp_library->save();
-    emit(mp_library->booksChanged());
+    if (m_local) {
+        emit(bookRemoved(id));
+    } else {
+        emit(oneBookChanged(id));
+    }
 }
 
 void ContentManager::pauseBook(const QString& id)
@@ -244,7 +252,7 @@ void ContentManager::cancelBook(const QString& id)
     eraseBookFilesFromComputer(fileToRemove);
     mp_library->removeBookFromLibraryById(id);
     mp_library->save();
-    emit(mp_library->booksChanged());
+    emit(oneBookChanged(id));
 }
 
 QStringList ContentManager::getDownloadIds()

src/contentmanager.h

@@ -44,6 +44,8 @@ private:
 signals:
     void filterParamsChanged();
     void booksChanged();
+    void oneBookChanged(const QString&);
+    void bookRemoved(const QString&);
     void downloadsChanged();
     void currentLangChanged();
     void pendingRequest(const bool);