添加应用详情页面

CMakeLists.txt

@@ -75,6 +75,7 @@ set(SOURCE_FILES
     inc/page/spkpagebase.h gui/page/spkpagebase.cpp
     inc/page/spkpageuitest.h gui/page/spkpageuitest.cpp
     inc/page/spkpageapplist.h gui/page/spkpageapplist.cpp
+    inc/page/spkpageappdetails.h gui/page/spkpageappdetails.cpp
 
     inc/spkstore.h src/spkstore.cpp
     inc/spkuimsg.h src/spkuimsg.cpp

docs/structure_and_naming.md

@@ -40,4 +40,13 @@ C++ 规范要求的和第三方库有较大差异的除外。例如，`SpkUiMess
 如非第三方代码，一般以 `Spk` 前缀标明。
 实现 UI 的类都应归于 `SpkUi` 命名空间。
 
+## 类定义
+
+### 一般规则
+
+Qt 类的 `Q_OBJECT` 应置于类定义最顶端。
+`public` ，`protected` 和 `private` 等标签中只应该包含一类成员，
+如单个 `public` 标签内只能包含方法，或成员。
+信号、槽等不得与普通方法混合。
+
 <!--TODO-->

gui/page/spkpageappdetails.cpp

@@ -0,0 +1,182 @@
+// SPDX-License-Identifier: GPL-3.0-only
+
+#include "page/spkpageappdetails.h"
+#include "spkutils.h"
+
+
+namespace SpkUi
+{
+  constexpr QSize SpkPageAppDetails::IconSize;
+
+  void SpkPageAppDetails::LoadAppResources(QString aPkgName, QString aIcon, QStringList aScreenshots,
+                                           QStringList aTags)
+  {
+    QPixmap pic;
+
+    // Load icon
+    auto res = RES->RequestResource(0, aPkgName, SpkResource::ResourceType::AppIcon, aIcon);
+    if(res.status == SpkResource::ResourceStatus::Ready)
+    {
+      if(pic.loadFromData(res.data))
+        mAppIcon->setPixmap(pic.scaled(IconSize,
+                                       Qt::IgnoreAspectRatio,
+                                       Qt::SmoothTransformation));
+      else
+      {
+        mAppIcon->setPixmap(QIcon::fromTheme("dialog-error").pixmap(SpkAppItem::IconSize_));
+        RES->PurgeCachedResource(aPkgName, SpkResource::ResourceType::AppIcon, 0);
+      }
+    }
+
+    // Load screenshots
+    if(aScreenshots.isEmpty())
+      return;
+
+    int shotId = 0;
+    for(auto &i : aScreenshots)
+    {
+      shotId++;
+      res = RES->RequestResource(shotId, aPkgName, SpkResource::ResourceType::AppScreenshot, aIcon,
+                                 shotId);
+      if(res.status == SpkResource::ResourceStatus::Ready)
+      {
+        if(pic.loadFromData(res.data))
+          ;// TODO
+          else
+          {
+            // TODO
+            //        mAppIcon->setPixmap(QIcon::fromTheme("dialog-error").pixmap(SpkAppItem::IconSize_));
+            RES->PurgeCachedResource(aPkgName, SpkResource::ResourceType::AppScreenshot, 0);
+          }
+      }
+    }
+
+    // TODO: tags
+  }
+
+  SpkPageAppDetails::SpkPageAppDetails(QWidget *parent) : SpkPageBase(parent)
+  {
+    mMainArea = new QScrollArea;
+    mMainArea->setWidgetResizable(true);
+    mMainArea->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
+
+    mLay4MainArea = new QVBoxLayout(this);
+    mLay4MainArea->addWidget(mMainArea);
+
+    mMainLay = new QVBoxLayout(mMainArea);
+    mMainLay->setSizeConstraint(QLayout::SetMinAndMaxSize);
+
+    mAppIcon = new QLabel;
+
+    mAppTitle = new QLabel;
+    mAppTitle->setObjectName("styDetTitle");
+
+    mAppDescription = new QLabel;
+    mAppDescription->setObjectName("styDetDesc");
+    mAppDescription->setWordWrap(true);
+    mAppShortDesc = new QLabel;
+    mAppShortDesc->setObjectName("styDetDesc");
+    mAppShortDesc->setWordWrap(true);
+    // NOTE: Seems Qt have trouble dealing with wrapped text here. Removing the following operations
+    // to mAppShortDesc will result in broken layout. Very possible that it's a Qt bug.
+    mAppShortDesc->setSizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::Preferred);
+    mAppShortDesc->setMinimumWidth(100);
+    mVersion = new QLabel;
+    mPkgName = new QLabel;
+    mPkgName->setObjectName("styDetPkg");
+
+    mTitleLay = new QVBoxLayout;
+    mTitleLay->setAlignment(Qt::AlignTop);
+    mTitleLay->addWidget(mAppTitle);
+    mTitleLay->addWidget(mVersion);
+    mTitleLay->addWidget(mAppShortDesc);
+    mTitleLay->addWidget(mPkgName);
+    mTitleLay->setSpacing(0);
+
+    mIconTitleLay = new QHBoxLayout;
+    mIconTitleLay->setAlignment(Qt::AlignLeft);
+    mIconTitleLay->addWidget(mAppIcon);
+    mIconTitleLay->addSpacing(15);
+    mIconTitleLay->addLayout(mTitleLay);
+
+    mIconTitleWidget = new QWidget;
+    mIconTitleWidget->setLayout(mIconTitleLay);
+
+    mAuthor = new SpkDetailEntry;
+    mAuthor->SetTitle(tr("Author"));
+    mContributor = new SpkDetailEntry;
+    mContributor->SetTitle(tr("Contributor"));
+    mSite = new SpkDetailEntry;
+    mSite->SetTitle(tr("Website"));
+    mArch = new SpkDetailEntry;
+    mArch->SetTitle(tr("Architecture"));
+    mSize = new SpkDetailEntry;
+    mSize->SetTitle(tr("Size"));
+
+    mDetailLay = new SpkStretchLayout;
+    mDetailLay->setSpacing(12);
+    mDetailLay->addWidget(mAuthor);
+    mDetailLay->addWidget(mContributor);
+    mDetailLay->addWidget(mSize);
+    mDetailLay->addWidget(mArch);
+    mDetailLay->addWidget(mSite);
+
+//    mDetailWidget = new QWidget;
+//    mDetailWidget->setLayout(mDetailLay);
+//    mDetailWidget->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Expanding);
+
+    mMainLay->setAlignment(Qt::AlignTop);
+    mMainLay->addWidget(mIconTitleWidget);
+    mMainLay->addLayout(mDetailLay);
+    mMainLay->addWidget(mAppDescription);
+//    mMainLay->addStretch();
+    mWid4MainArea = new QWidget;
+    mWid4MainArea->setLayout(mMainLay);
+
+    mMainArea->setWidget(mWid4MainArea);
+  }
+
+  void SpkPageAppDetails::ResourceAcquisitionFinished(int id, ResourceResult result)
+  {
+    QPixmap icon;
+    if(!id)
+    {
+      // id == 0, icon
+      if(result.status == SpkResource::ResourceStatus::Ready)
+      {
+        if(icon.loadFromData(result.data))
+          mAppIcon->setPixmap(icon.scaled(SpkAppItem::IconSize_,
+                                          Qt::IgnoreAspectRatio,
+                                          Qt::SmoothTransformation));
+        else
+          mAppIcon->setPixmap(QIcon::fromTheme("dialog-error").pixmap(SpkAppItem::IconSize_));
+      }
+      else if(result.status == SpkResource::ResourceStatus::Failed)
+      {
+        mAppIcon->setPixmap(QIcon::fromTheme("dialog-error").pixmap(SpkAppItem::IconSize_));
+        RES->PurgeCachedResource(mPkgName->text(), SpkResource::ResourceType::AppIcon, 0);
+      }
+    }
+    else
+    {
+      // TODO: screenshots
+    }
+  }
+
+  void SpkPageAppDetails::Activated()
+  {
+    RES->Acquire(this, false);
+  }
+
+  SpkDetailEntry::SpkDetailEntry(QWidget *parent) : QWidget(parent)
+  {
+    setLayout(&mLay);
+    mLay.addWidget(&mTitle);
+    mLay.addWidget(&mField);
+    mTitle.setAlignment(Qt::AlignLeft);
+    mField.setAlignment(Qt::AlignRight);
+    setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed);
+    setMinimumWidth(300);
+    setAutoFillBackground(true);
+  }
+}

gui/page/spkpageapplist.cpp

@@ -53,6 +53,7 @@ namespace SpkUi
     auto item = new SpkAppItem(appId, this);
     auto id = mAppItemList.size();
 
+    connect(item, &SpkAppItem::clicked, this, &SpkPageAppList::ApplicationClicked);
     item->SetTitle(name);
     item->SetDescription(description);
     item->setProperty("pkg_name", pkgName);

gui/page/spkpageuitest.cpp

@@ -51,6 +51,18 @@ SpkUi::SpkPageUiTest::SpkPageUiTest(QWidget *parent) : QSplitter(parent)
                           "Phasellus finibus risus id aliquam pulvinar.");
   AppItem->SetIcon(QIcon::fromTheme("dialog-information").pixmap(72, 72));
 
+  Detail1 = new SpkDetailEntry; Detail1->SetTitle("Foo"); Detail1->SetValue("1");
+  Detail2 = new SpkDetailEntry; Detail2->SetTitle("Foo"); Detail2->SetValue("1");
+  Detail3 = new SpkDetailEntry; Detail3->SetTitle("Foo"); Detail3->SetValue("1");
+
+  DetailsLay = new SpkStretchLayout;
+  DetailsLay->addWidget(Detail1);
+  DetailsLay->addWidget(Detail2);
+  DetailsLay->addWidget(Detail3);
+
+  DetailsWidget = new QWidget;
+  DetailsWidget->setLayout(DetailsLay);
+
   PopupText = new QLineEdit(this);
   PopupText->setObjectName("spk_pg_qsstest_poptext");
   PopupText->setText("Hello, world");
@@ -85,6 +97,7 @@ SpkUi::SpkPageUiTest::SpkPageUiTest(QWidget *parent) : QSplitter(parent)
   VLayTestWidgets->addWidget(ShowPopup);
   VLayTestWidgets->addWidget(ShowAbout);
   VLayTestWidgets->addWidget(AppItem);
+  VLayTestWidgets->addWidget(DetailsWidget);
 
   Group = new QGroupBox(this);
   Group->setObjectName("spk_pg_qsstest_groupbox");

gui/spkappitem.cpp

@@ -50,3 +50,15 @@ void SpkAppItem::paintEvent(QPaintEvent *e)
     QPainter p(this);
     style()->drawPrimitive(QStyle::PE_Widget, &opt, &p, this);
 }
+
+void SpkAppItem::mousePressEvent(QMouseEvent *e)
+{
+  mPressCond = true;
+}
+
+void SpkAppItem::mouseReleaseEvent(QMouseEvent *e)
+{
+  if(mPressCond)
+    emit clicked(mAppId);
+  mPressCond = false;
+}

gui/spkmainwindow.cpp

@@ -157,7 +157,7 @@ void SpkMainWindow::PopulateAppList(QJsonObject appData, QString &&keyword)
   static auto err =
   [](){
     sErr("Received invalid application list data!");
-    SpkUiMessage::SendStoreNotification(tr("An invalid response was received. Please try again!"));
+    SpkUiMessage::SendStoreNotification(tr("Received an invalid response. Please try again!"));
     return;
   };
   int pgCurrent, pgTotal, totalApps;
@@ -178,7 +178,7 @@ void SpkMainWindow::PopulateAppList(QJsonObject appData, QString &&keyword)
 
   auto apps = appData.value("data").toArray();
 
-  foreach(auto i, apps)
+  for(auto &&i : apps)
   {
     if(i.isObject())
     {
@@ -206,10 +206,112 @@ void SpkMainWindow::PopulateAppList(QJsonObject appData, QString &&keyword)
   }
 }
 
+void SpkMainWindow::EnterAppDetails(int aAppId)
+{
+  using namespace SpkUtils;
+  VerifySingleRequest(mAppDetailsGetReply);
+  QJsonObject reqData;
+  QJsonDocument reqDoc;
+  reqData.insert("application_id", QJsonValue(aAppId));
+  reqDoc.setObject(reqData);
+  mAppDetailsGetReply = STORE->SendApiRequest("application/get_application_detail", reqDoc);
+  DeleteReplyLater(mAppDetailsGetReply);
+  connect(mAppDetailsGetReply, &QNetworkReply::finished,
+          this, &SpkMainWindow::AppDetailsDataReceived);
+  setCursor(Qt::BusyCursor);
+}
+
+void SpkMainWindow::AppDetailsDataReceived()
+{
+  QJsonValue retval;
+  if(!SpkUtils::VerifyReplyJson(mAppDetailsGetReply, retval) || !retval.isObject())
+  {
+    sErrPop(tr("Failed to open app details page! Type of retval: %1.").arg(retval.type()));
+    return;
+  }
+  SwitchToPage(SpkUi::PgAppList);
+  PopulateAppDetails(retval.toObject());
+  setCursor(Qt::ArrowCursor);
+}
+
+void SpkMainWindow::PopulateAppDetails(QJsonObject appDetails)
+{
+  QString pkgName, author, contributor, site, iconPath, arch, version, details, shortDesc, name;
+  QStringList screenshots, tags;
+  int packageSize;
+  static auto err =
+  [](){
+    sErr("Received invalid application details!");
+    SpkUiMessage::SendStoreNotification(tr("Received an invalid response. Please try again!"));
+    return;
+  };
+
+  if(appDetails.contains("package") && appDetails.value("package").isString())
+    pkgName = appDetails.value("package").toString();
+  else return err();
+  if(appDetails.contains("application_name_zh") && appDetails.value("application_name_zh").isString())
+    name = appDetails.value("application_name_zh").toString();
+  else name = pkgName;
+  if(appDetails.contains("version") && appDetails.value("version").isString())
+    version = appDetails.value("version").toString();
+  else return err();
+  if(appDetails.contains("icons") && appDetails.value("icons").isString())
+    iconPath= appDetails.value("icons").toString();
+  if(appDetails.contains("author") && appDetails.value("author").isString())
+    author = appDetails.value("author").toString();
+  if(appDetails.contains("contributor") && appDetails.value("contributor").isString())
+    contributor = appDetails.value("contributor").toString();
+  if(appDetails.contains("website") && appDetails.value("website").isString())
+    site = appDetails.value("website").toString();
+  if(appDetails.contains("description") && appDetails.value("description").isString())
+    shortDesc = appDetails.value("description").toString();
+  if(appDetails.contains("more") && appDetails.value("more").isString())
+    details = appDetails.value("more").toString();
+  if(appDetails.contains("arch") && appDetails.value("arch").isString())
+    arch = appDetails.value("arch").toString();
+  if(appDetails.contains("size") && appDetails.value("size").isDouble())
+    packageSize = appDetails.value("size").toInt();
+
+  QJsonArray imgs;
+  if(appDetails.contains("img_urls") && appDetails.value("img_urls").isArray())
+    imgs = appDetails.value("img_urls").toArray();
+  if(!imgs.isEmpty())
+    for(auto &&i : imgs)
+      if(i.isString()) screenshots << i.toString();
+
+  QJsonArray tags_j;
+  if(appDetails.contains("tags") && appDetails.value("tags").isArray())
+    imgs = appDetails.value("tags").toArray();
+  if(!tags_j.isEmpty())
+    for(auto &&i : tags_j)
+      if(i.isString()) tags << i.toString();
+
+  // Details string has a strangely appended LF. IDK but still should remove it.
+  shortDesc = shortDesc.trimmed();
+
+  auto w = ui->PageAppDetails;
+  w->mPkgName->setText(pkgName);
+  w->mAppTitle->setText(name);
+  w->mAppShortDesc->setText(shortDesc);
+  w->mAppDescription->setText(details);
+  w->mAuthor->SetValue(author);
+  w->mContributor->SetValue(contributor);
+  w->mSite->SetValue(site);
+  w->mArch->SetValue(arch);
+  w->mSize->SetValue(SpkUtils::BytesToSize(packageSize));
+  w->mVersion->setText(version);
+  SwitchToPage(SpkUi::PgAppDetails);
+  ui->AppDetailsItem->setHidden(false);
+  ui->CategoryWidget->setCurrentItem(ui->AppDetailsItem);
+  w->LoadAppResources(pkgName, iconPath, screenshots, tags);
+}
+
 // ==================== Main Window Initialization ====================
 
 void SpkMainWindow::Initialize()
 {
+  connect(ui->SidebarMgr, &SpkUi::SpkSidebarSelector::SwitchToPage,
+          this, &SpkMainWindow::SwitchToPage);
   connect(ui->SidebarMgr, &SpkUi::SpkSidebarSelector::SwitchToCategory,
           this, &SpkMainWindow::EnterCategoryList);
   connect(ui->PageAppList, &SpkUi::SpkPageAppList::SwitchListPage,
@@ -218,6 +320,8 @@ void SpkMainWindow::Initialize()
           this, &SpkMainWindow::SearchKeyword);
   connect(ui->SearchEdit, &QLineEdit::returnPressed,
           [=](){ emit SearchKeyword(ui->SearchEdit->text(), 1); });
+  connect(ui->PageAppList, &SpkUi::SpkPageAppList::ApplicationClicked,
+          this, &SpkMainWindow::EnterAppDetails);
 }
 
 // ==================== Main Widget Initialization ====================
@@ -292,11 +396,28 @@ SpkUi::SpkMainWidget::SpkMainWidget(QWidget *parent) : QFrame(parent)
   CategoryWidget->setColumnCount(1);
   CategoryWidget->setHeaderHidden(true);
   CategoryWidget->setSelectionMode(QAbstractItemView::SelectionMode::SingleSelection);
+
+  //============ Sidebar entries BEGIN ============
+  AppDetailsItem = new QTreeWidgetItem(QStringList(tr("App Details")));
+  AppDetailsItem->setData(0, SpkSidebarSelector::RoleItemIsCategory, false);
+  AppDetailsItem->setData(0, SpkSidebarSelector::RoleItemCategoryPageId, SpkStackedPages::PgAppDetails);
   CategoryParentItem = new QTreeWidgetItem(QStringList(tr("Categories")));
   CategoryParentItem->setFlags(CategoryParentItem->flags().setFlag(Qt::ItemIsSelectable, false));
-  CategoryParentItem->setExpanded(true);
+#ifndef NDEBUG
+  UiTestItem = new QTreeWidgetItem(QStringList(tr("UI TEST")));
+  UiTestItem->setData(0, SpkSidebarSelector::RoleItemIsCategory, false);
+  UiTestItem->setData(0, SpkSidebarSelector::RoleItemCategoryPageId, SpkStackedPages::PgQssTest);
+#endif
+  //============ Sidebar entries END ============
+
   SidebarMgr->AddUnusableItem(CategoryParentItem);
+  CategoryWidget->addTopLevelItem(AppDetailsItem);
   CategoryWidget->addTopLevelItem(CategoryParentItem);
+  CategoryWidget->addTopLevelItem(UiTestItem);
+
+  // Must be done after added into a view.
+  AppDetailsItem->setHidden(true); // Hide until we actually open up a Details page
+  CategoryParentItem->setExpanded(true);
 
   // FIXMEIFPOSSIBLE: Fusion adds extra gradient.
   // Details: https://forum.qt.io/topic/128190/fusion-style-kept-adding-an-extra-
@@ -355,7 +476,7 @@ SpkUi::SpkMainWidget::SpkMainWidget(QWidget *parent) : QFrame(parent)
 
   //============ Pages =============
 
-  // Red-Black tree based map will be able to sort things
+  // Red-Black tree based map will be able to sort things. Just for convenience of ordering pages.
   QMap<SpkStackedPages, QWidget*> sorter;
 
   // Initialize pages
@@ -363,6 +484,10 @@ SpkUi::SpkMainWidget::SpkMainWidget(QWidget *parent) : QFrame(parent)
   PageAppList->setProperty("spk_pageid", SpkStackedPages::PgAppList);
   sorter[PgAppList] = PageAppList;
 
+  PageAppDetails = new SpkUi::SpkPageAppDetails(this);
+  PageAppDetails->setProperty("spk_pageid", SpkStackedPages::PgAppDetails);
+  sorter[PgAppDetails] = PageAppDetails;
+
 #ifndef NDEBUG // If only in debug mode should we initialize QSS test page
   PageQssTest = new SpkUi::SpkPageUiTest(this);
   PageQssTest->setProperty("spk_pageid", SpkStackedPages::PgQssTest);

gui/spkqsshelper.cpp

@@ -26,7 +26,8 @@ const std::map<SpkUi::Qss::ColorSetIndex, const char *> SpkUi::Qss::ColorSet2Tok
   { TextOnSelection, "TXACC" },
   { TextOnGlobalBgnd, "TXGBG" },
   { TextOnControlsBgnd, "TXCBG" },
-  { TextLighter, "TXL" },
+  { TextLighter, "TXL1" },
+  { TextEvenLighter, "TXL2" },
   { TextDisabled, "TXD" },
   { GlossyEdge, "GLS" },
   { ShadesEdge, "SHD" }
@@ -51,6 +52,7 @@ const std::map<SpkUi::Qss::ColorSetIndex, QColor> SpkUi::Qss::DarkColorSet
   { TextOnGlobalBgnd, ColorTextOnBackground(0x282828) },
   { TextOnControlsBgnd, ColorTextOnBackground(0x282828) },
   { TextLighter, 0xd5d5d5 },
+  { TextEvenLighter, 0x505050 },
   { TextDisabled, 0xbebebe },
   { GlossyEdge, 0x656565 },
   { ShadesEdge, 0x7b7b7b }
@@ -75,6 +77,7 @@ const std::map<SpkUi::Qss::ColorSetIndex, QColor> SpkUi::Qss::LightColorSet
   { TextOnGlobalBgnd, ColorTextOnBackground(0xf8f8f8) },
   { TextOnControlsBgnd, ColorTextOnBackground(0xf8f8f8) },
   { TextLighter, 0x2a2a2a },
+  { TextEvenLighter, 0xa0a0a0 },
   { TextDisabled, 0x8a8a8a },
   { GlossyEdge, 0xc5c5c5 },
   { ShadesEdge, 0x9d9d9d }

gui/spkstretchlayout.cpp

@@ -21,7 +21,7 @@ QSize SpkStretchLayout::sizeHint() const
 {
   if(mItems.isEmpty())
     return { 300, 300 };
-  auto w = geometry().width();
+  auto w = geometry().width() - spacing();
   auto it = mItems.first();
   int countPerLine = w / (it->minimumSize().width() + spacing());
   int lines = ceil((double)mItems.size() / countPerLine);
@@ -75,14 +75,16 @@ void SpkStretchLayout::setGeometry(const QRect &rect)
   else // Stretch items.
     size = QSize {(w / countPerLine - spc), itm->maximumSize().height() };
 
+  auto origin = geometry().topLeft();
+
   QLayoutItem *o;
   for(int i = 0; i < mItems.size(); i++)
   {
     o = mItems.at(i);
     QRect geo;
     geo.setSize(size);
-    geo.moveTo((i % countPerLine) * (size.width() + spc) + spc,
-               (i / countPerLine) * (size.height() + spacing()) + spc);
+    geo.moveTo((i % countPerLine) * (size.width() + spc) + spc + origin.x(),
+               (i / countPerLine) * (size.height() + spacing()) + spc + origin.y());
     o->setGeometry(geo);
   }
 }

inc/page/spkpageappdetails.h

@@ -0,0 +1,55 @@
+// SPDX-License-Identifier: GPL-3.0-only
+
+#pragma once
+
+#include <QLabel>
+#include <QScrollArea>
+#include <QVBoxLayout>
+#include <QFormLayout>
+#include "page/spkpagebase.h"
+#include "spkstretchlayout.h"
+
+namespace SpkUi
+{
+  class SpkDetailEntry;
+
+  class SpkPageAppDetails : public SpkPageBase
+  {
+      Q_OBJECT
+    public:
+      SpkPageAppDetails(QWidget *parent = nullptr);
+
+      void LoadAppResources(QString pkgName, QString icon, QStringList screenshots, QStringList tags);
+
+    private:
+
+    public slots:
+      void ResourceAcquisitionFinished(int id, ResourceResult result);
+      void Activated();
+
+    public:
+      static constexpr QSize IconSize { 144, 144 };
+
+      QScrollArea *mMainArea;
+      QWidget *mDetailWidget, *mIconTitleWidget, *mWid4MainArea;
+      QLabel *mAppTitle, *mAppIcon, *mAppDescription, *mAppShortDesc, *mPkgName, *mVersion;
+      SpkDetailEntry *mAuthor, *mContributor, *mSite, *mArch, *mSize;
+      SpkStretchLayout *mDetailLay;
+      QVBoxLayout *mMainLay, *mTitleLay, *mLay4MainArea;
+      QHBoxLayout *mIconTitleLay;
+
+  };
+
+  class SpkDetailEntry : public QWidget
+  {
+      Q_OBJECT
+    public:
+      SpkDetailEntry(QWidget *parent = nullptr);
+      void SetTitle(const QString &s) { mTitle.setText(s); }
+      void SetValue(const QString &s) { mField.setText(s); }
+
+    private:
+      QLabel mTitle, mField;
+      QHBoxLayout mLay;
+  };
+}

inc/page/spkpageapplist.h

@@ -43,7 +43,7 @@ namespace SpkUi
       QString mKeyword;
 
     signals:
-      void ApplicationClicked(QString name, QString pkgName);
+      void ApplicationClicked(int appId);
       void SwitchListPage(int categoryId, int page);
       void SwitchSearchPage(QString keyword, int page);
 

inc/page/spkpageuitest.h

@@ -12,6 +12,8 @@
 #include <QHBoxLayout>
 #include <QSlider>
 #include "spkappitem.h"
+#include "spkstretchlayout.h"
+#include "page/spkpageappdetails.h"
 
 #include "spkloading.h"
 
@@ -40,6 +42,9 @@ namespace SpkUi
       QSlider *SlideV;
       SpkLoading *Loading;
       SpkAppItem *AppItem;
+      SpkStretchLayout *DetailsLay;
+      SpkDetailEntry *Detail1, *Detail2, *Detail3;
+      QWidget *DetailsWidget;
 
       QLineEdit *PopupText;
       QPushButton *ShowPopup,

inc/spkappitem.h

@@ -18,6 +18,8 @@ class SpkAppItem : public QWidget
 
   protected:
     void paintEvent(QPaintEvent *e);
+    void mousePressEvent(QMouseEvent *e);
+    void mouseReleaseEvent(QMouseEvent *e);
 
   public:
     static constexpr int IconSize = 72;
@@ -29,7 +31,11 @@ class SpkAppItem : public QWidget
     ElidedLabel *mDescription;
     int mAppId;
 
+    bool mPressCond;
+
     QVBoxLayout *mLayText;
     QHBoxLayout *mMainLay;
 
+  signals:
+    void clicked(int);
 };

inc/spkmainwindow.h

@@ -16,6 +16,7 @@
 #include "spkfocuslineedit.h"
 #include "page/spkpageuitest.h"
 #include "page/spkpageapplist.h"
+#include "page/spkpageappdetails.h"
 
 class QNetworkReply;
 
@@ -25,6 +26,7 @@ namespace SpkUi
   {
     PgInvalid = -1,
     PgAppList,
+    PgAppDetails,
     PgQssTest // Must be at last
   };
 
@@ -86,7 +88,7 @@ namespace SpkUi
           mLastSelectedItem = nullptr;
         }
         mLastCheckedBtn = b;
-        emit SwitchToPage(b->property("spk_pageno").toInt());
+        emit SwitchToPage(static_cast<SpkStackedPages>(b->property("spk_pageno").toInt()));
       }
       void TreeItemSelected(QTreeWidgetItem *item, int column)
       {
@@ -103,7 +105,8 @@ namespace SpkUi
         if(item->data(column, RoleItemIsCategory).toBool())
           emit SwitchToCategory(item->data(column, RoleItemCategoryPageId).toInt(), 0);
         else
-          emit SwitchToPage(item->data(column, RoleItemCategoryPageId).toInt());
+          emit SwitchToPage(static_cast<SpkStackedPages>(
+                            item->data(column, RoleItemCategoryPageId).toInt()));
       }
       void UnusableItemSelected(QTreeWidgetItem *i)
       {
@@ -120,7 +123,7 @@ namespace SpkUi
 
     signals:
       void SwitchToCategory(int aCategoryId, int aPage);
-      void SwitchToPage(int aPageId);
+      void SwitchToPage(SpkStackedPages aPageId);
   };
 
   class SpkMainWidget : public QFrame
@@ -146,7 +149,9 @@ namespace SpkUi
       QMap<int, QTreeWidgetItem> *CategoryItemMap;
       SpkSidebarSelector *SidebarMgr;
 
-      QTreeWidgetItem *CategoryParentItem;
+      QTreeWidgetItem *CategoryParentItem,
+                      *AppDetailsItem,
+                      *UiTestItem;
 
       // Title bar search bar
       SpkFocusLineEdit *SearchEdit;
@@ -156,6 +161,7 @@ namespace SpkUi
       //Pages
       SpkPageUiTest *PageQssTest;
       SpkPageAppList *PageAppList;
+      SpkPageAppDetails *PageAppDetails;
   };
 }
 
@@ -175,7 +181,8 @@ class SpkMainWindow : public SpkWindow
 
   private:
     QPointer<QNetworkReply> mCategoryGetReply,
-                            mCategoryAppListGetReply;
+                            mCategoryAppListGetReply,
+                            mAppDetailsGetReply;
     SpkUi::SpkStackedPages mCurrentPage = SpkUi::PgInvalid;
 
   public slots:
@@ -191,7 +198,11 @@ class SpkMainWindow : public SpkWindow
     // Search a keyword (and switch pages)
     void SearchKeyword(QString aKeyword, int aPage);
     void SearchDataReceived();
+    // Enter the details page of an application (and switch pages)
+    void EnterAppDetails(int aAppId);
+    void AppDetailsDataReceived();
 
   private:
     void PopulateAppList(QJsonObject appData, QString &&keyword);
+    void PopulateAppDetails(QJsonObject appDetails);
 };

inc/spkqsshelper.h

@@ -30,6 +30,7 @@ namespace SpkUi
       TextOnGlobalBgnd,
       TextOnControlsBgnd,
       TextLighter,
+      TextEvenLighter,
       TextDisabled,
       GlossyEdge,
       ShadesEdge,

inc/spkutils.h

@@ -26,4 +26,5 @@ namespace SpkUtils
 
   QString CutFileName(QString);
   QString CutPath(QString);
+  QString BytesToSize(size_t s, int prec = 2);
 }

resource/stylesheets/mainwindow_dark.css

@@ -14,7 +14,8 @@
     TXACC: Text on Selection/Activation
     TXGBG: Text on Global background
     TXCBG: Text on controls background
-    TXL: Text slightly lighter
+    TXL1: Text slightly lighter
+    TXL2: Text lighter even more
     TXD: Text disabled
     GLS: Glossy edge on controls
     SHD: Shades edge on controls
@@ -106,7 +107,7 @@ ElidedLabel
 
 #styAboutDesc
 {
-    color: TXL
+    color: TXL1
 }
 
 SpkAppItem
@@ -126,12 +127,29 @@ SpkAppItem::hover
     font-size: 17px;
 }
 
+#styDetTitle
+{
+    font-weight: 600;
+    font-size: 36px;
+}
+
 #styAppItmDesc
 {
-    color: TXL;
+    color: TXL1;
     font-size: 12px;
 }
 
+#styDetDesc
+{
+    color: TXL1;
+    font-size: 14px;
+}
+
+#styDetPkg
+{
+    color: TXL2
+}
+
 #styChkBtn
 {
     border-width: 0px;

src/spkutils.cpp

@@ -88,3 +88,14 @@ QString SpkUtils::CutPath(QString path)
 {
   return path.section('/', 1, -2, QString::SectionIncludeLeadingSep);
 }
+
+QString SpkUtils::BytesToSize(size_t s, int prec)
+{
+  if(s > (1 << 30))
+    return QString::number(double (s) / (1 << 30), 'f', prec) + " GB";
+  if(s > (1 << 20))
+    return QString::number(double (s) / (1 << 20), 'f', prec) + " MB";
+  if(s > (1 << 10))
+    return QString::number(double (s) / (1 << 10), 'f', prec) + " KB";
+  return QString::number(s) + " B";
+}