From 6c6f8b581c7088b45cf0d18b8871dffe25395fac Mon Sep 17 00:00:00 2001
From: Fournier Gabriel <>
Date: Sun, 13 Dec 2020 21:55:03 +0100
Subject: [PATCH] saving

---
 apps/reader/list_book_controller.cpp | 27 +++++++++++++++++++++++
 apps/reader/list_book_controller.h   |  2 ++
 apps/reader/read_book_controller.cpp | 33 ++++++++++++++++++++++++++++
 apps/reader/read_book_controller.h   |  4 ++++
 apps/reader/word_wrap_view.cpp       | 10 +++++++++
 apps/reader/word_wrap_view.h         |  3 ++-
 6 files changed, 78 insertions(+), 1 deletion(-)

diff --git a/apps/reader/list_book_controller.cpp b/apps/reader/list_book_controller.cpp
index a963ad0ba..d2635129c 100644
--- a/apps/reader/list_book_controller.cpp
+++ b/apps/reader/list_book_controller.cpp
@@ -16,6 +16,7 @@ ListBookController::ListBookController(Responder * parentResponder):
     m_readBookController(this)
 {
     m_nbFiles = filesWithExtension(".txt", m_files, NB_FILES);
+    cleanRemovedBookRecord();
 }
 
 int ListBookController::numberOfRows() const
@@ -72,4 +73,30 @@ bool ListBookController::handleEvent(Ion::Events::Event event)
     return false;
 }
 
+
+bool ListBookController::hasBook(const char* filename) const
+{
+    for(int i=0;i<m_nbFiles;i++)
+    {
+        if(strcmp(m_files[i].name, filename) == 0)
+        {
+            return true;
+        }
+    }
+    return false;
+}
+
+void ListBookController::cleanRemovedBookRecord()
+{
+  int nb = Ion::Storage::sharedStorage()->numberOfRecordsWithExtension("txt");
+  for(int i=0; i<nb; i++)
+  {
+    Ion::Storage::Record r = Ion::Storage::sharedStorage()->recordWithExtensionAtIndex("txt", i);
+    if(!hasBook(r.fullName()))
+    {
+        r.destroy();
+    }
+  }
+}
+
 }
\ No newline at end of file
diff --git a/apps/reader/list_book_controller.h b/apps/reader/list_book_controller.h
index 9fdd11262..82eecf207 100644
--- a/apps/reader/list_book_controller.h
+++ b/apps/reader/list_book_controller.h
@@ -22,6 +22,8 @@ public:
     void willDisplayCellForIndex(HighlightCell * cell, int index) override;
     void didBecomeFirstResponder() override;
     bool handleEvent(Ion::Events::Event event) override;
+    bool hasBook(const char* filename) const;
+    void cleanRemovedBookRecord();
 private:
     SelectableTableView m_tableView;
 
diff --git a/apps/reader/read_book_controller.cpp b/apps/reader/read_book_controller.cpp
index 522491bfb..7bdd9380e 100644
--- a/apps/reader/read_book_controller.cpp
+++ b/apps/reader/read_book_controller.cpp
@@ -15,6 +15,8 @@ View * ReadBookController::view()
 
 void ReadBookController::setBook(const External::Archive::File& file)
 {
+    m_file = &file;
+    loadPosition();
     m_readerView.setText(reinterpret_cast<const char*>(file.data), file.dataLength);
 }
 
@@ -30,7 +32,38 @@ bool ReadBookController::handleEvent(Ion::Events::Event event)
         m_readerView.previousPage();
         return true;
     }
+    if(event == Ion::Events::Back || event == Ion::Events::Home)
+    {
+      savePosition();
+    }
     return false;
 }
 
+void ReadBookController::savePosition() const
+{
+  int pageOffset = m_readerView.getPageOffset(); 
+  Ion::Storage::Record::ErrorStatus status = Ion::Storage::sharedStorage()->createRecordWithFullName(m_file->name, &pageOffset, sizeof(pageOffset));
+  if(Ion::Storage::Record::ErrorStatus::NameTaken == status)
+  {
+      Ion::Storage::Record::Data data;
+      data.buffer = &pageOffset;
+      data.size = sizeof(pageOffset);
+      status = Ion::Storage::sharedStorage()->recordNamed(m_file->name).setValue(data);
+  }
+}
+
+void ReadBookController::loadPosition()
+{
+  Ion::Storage::Record r = Ion::Storage::sharedStorage()->recordNamed(m_file->name);
+  if(Ion::Storage::sharedStorage()->hasRecord(r))
+  {
+    int pageOffset = *(static_cast<const int*>(r.value().buffer));
+    m_readerView.setPageOffset(pageOffset);
+  }
+  else
+  {
+    m_readerView.setPageOffset(0);
+  }
+}
+
 }
\ No newline at end of file
diff --git a/apps/reader/read_book_controller.h b/apps/reader/read_book_controller.h
index d83be7f6e..c4349be4e 100644
--- a/apps/reader/read_book_controller.h
+++ b/apps/reader/read_book_controller.h
@@ -14,8 +14,12 @@ public:
 
   void setBook(const External::Archive::File& file);
   bool handleEvent(Ion::Events::Event event) override;
+
+  void savePosition() const;
+  void loadPosition();
 private:
   WordWrapTextView m_readerView;
+  const External::Archive::File* m_file;
 };
 
 }
diff --git a/apps/reader/word_wrap_view.cpp b/apps/reader/word_wrap_view.cpp
index 9f4ed284f..610b57128 100644
--- a/apps/reader/word_wrap_view.cpp
+++ b/apps/reader/word_wrap_view.cpp
@@ -146,4 +146,14 @@ void WordWrapTextView::drawRect(KDContext * ctx, KDRect rect) const
     m_nextPageOffset = startOfWord - text();
 }
 
+int WordWrapTextView::getPageOffset() const
+{
+    return m_pageOffset;
+}
+
+void WordWrapTextView::setPageOffset(int o)
+{
+    m_pageOffset = o;
+}
+
 }
\ No newline at end of file
diff --git a/apps/reader/word_wrap_view.h b/apps/reader/word_wrap_view.h
index d71fcb15e..4075ff4e2 100644
--- a/apps/reader/word_wrap_view.h
+++ b/apps/reader/word_wrap_view.h
@@ -12,7 +12,8 @@ public:
     void setText(const char*, int length);
     void nextPage();
     void previousPage();
-    
+    int getPageOffset() const;
+    void setPageOffset(int o);
 protected:
     int m_pageOffset = 0;
     mutable int m_nextPageOffset = 0;