File 0001-Handle-case-where-a-lister-adds-a-device-b... of Package clementine

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File 0001-Handle-case-where-a-lister-adds-a-device-before-load.patch of Package clementine (Revision 641bcecffe390f0a684c11fcc314408d)

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From d041da18cc2e73ef2a6f1982546702b4844b9893 Mon Sep 17 00:00:00 2001
From: Jim Broadus <jbroadus@gmail.com>
Date: Sat, 23 Feb 2019 23:42:31 -0800
Subject: [PATCH] Handle case where a lister adds a device before loaded from
 database.

There is a small chance that a device lister is able to discover and add a
previously known device before it is added by the database loader thread.
In this case, copy the data that is user-settable to the existing DeviceInfo
object and destroy the object created from the database query.

This adds and utilizes a new FindEquivalentDevice method that compares the
device unique IDs. This could probably be made more robust as the unique
IDs for some listers may change. However, this is a problem with the database
storage implementation in general.
---
 src/devices/devicemanager.cpp | 27 ++++++++++++++++++++++++---
 src/devices/devicemanager.h   |  1 +
 2 files changed, 25 insertions(+), 3 deletions(-)

diff --git a/src/devices/devicemanager.cpp b/src/devices/devicemanager.cpp
index 940907509..11123229d 100644
--- a/src/devices/devicemanager.cpp
+++ b/src/devices/devicemanager.cpp
@@ -158,9 +158,22 @@ void DeviceManager::AddDeviceFromDb(DeviceInfo* info) {
   }
   info->LoadIcon(icons, info->friendly_name_);
 
-  beginInsertRows(ItemToIndex(root_), devices_.count(), devices_.count());
-  devices_ << info;
-  endInsertRows();
+  DeviceInfo* existing = FindEquivalentDevice(info);
+  if (existing) {
+    qLog(Info) << "Found existing device: " << info->friendly_name_;
+    // Update user configuration from the database.
+    existing->icon_name_ = info->icon_name_;
+    existing->icon_ = info->icon_;
+    QModelIndex idx = ItemToIndex(existing);
+    if (idx.isValid()) emit dataChanged(idx, idx);
+    // Discard the info loaded from the database.
+    delete info;
+  } else {
+    qLog(Info) << "Device added from database: " << info->friendly_name_;
+    beginInsertRows(ItemToIndex(root_), devices_.count(), devices_.count());
+    devices_ << info;
+    endInsertRows();
+  }
 }
 
 QVariant DeviceManager::data(const QModelIndex& idx, int role) const {
@@ -328,6 +341,14 @@ DeviceInfo* DeviceManager::FindDeviceByUrl(const QList<QUrl>& urls) const {
   return nullptr;
 }
 
+DeviceInfo* DeviceManager::FindEquivalentDevice(DeviceInfo* info) const {
+  for (const DeviceInfo::Backend& backend : info->backends_) {
+    DeviceInfo* match = FindDeviceById(backend.unique_id_);
+    if (match) return match;
+  }
+  return nullptr;
+}
+
 void DeviceManager::PhysicalDeviceAdded(const QString& id) {
   DeviceLister* lister = qobject_cast<DeviceLister*>(sender());
 
diff --git a/src/devices/devicemanager.h b/src/devices/devicemanager.h
index 80044256b..2caccb6f5 100644
--- a/src/devices/devicemanager.h
+++ b/src/devices/devicemanager.h
@@ -79,6 +79,7 @@ class DeviceManager : public SimpleTreeModel<DeviceInfo> {
 
   DeviceInfo* FindDeviceById(const QString& id) const;
   DeviceInfo* FindDeviceByUrl(const QList<QUrl>& url) const;
+  DeviceInfo* FindEquivalentDevice(DeviceInfo* info) const;
 
   // Actions on devices
   std::shared_ptr<ConnectedDevice> Connect(DeviceInfo* info);
-- 
2.16.4

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File 0001-Handle-case-where-a-lister-adds-a-device-before-load.patch of Package clementine (Revision 641bcecffe390f0a684c11fcc314408d)

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