Add search field for Android Sdk Manager

The list of packages from the sdk manager can be too much to look at and
search manually, thus a search field is very convenient to have here.

The search is very simple, include any package that contains the search
word into the result.

Change-Id: Id222841162739d49562ad11bb0f3152041614ebc
Reviewed-by: Alessandro Portale <alessandro.portale@qt.io>

src/plugins/android/androidsdkmanagerwidget.cpp

@@ -59,10 +59,12 @@ public:
     PackageFilterModel(AndroidSdkModel* sdkModel);
 
     void setAcceptedPackageState(AndroidSdkPackage::PackageState state);
+    void setAcceptedSearchPackage(const QString &text);
     bool filterAcceptsRow(int source_row, const QModelIndex &sourceParent) const override;
 
 private:
     AndroidSdkPackage::PackageState m_packageState =  AndroidSdkPackage::AnyValidState;
+    QString m_searchText;
 };
 
 AndroidSdkManagerWidget::AndroidSdkManagerWidget(AndroidConfig &config,
@@ -129,6 +131,15 @@ AndroidSdkManagerWidget::AndroidSdkManagerWidget(AndroidConfig &config,
         }
     });
 
+    m_ui->searchField->setPlaceholderText("Filter");
+    connect(m_ui->searchField, &QLineEdit::textChanged, [this, proxyModel](const QString &text) {
+        const bool isExpanded = m_ui->expandCheck->isChecked();
+        proxyModel->setAcceptedSearchPackage(text);
+        m_sdkModel->resetSelection();
+        // It is more convenient to expand the view with the results
+        m_ui->expandCheck->setChecked(!text.isEmpty());
+    });
+
     connect(m_ui->applySelectionButton, &QPushButton::clicked,
             this, &AndroidSdkManagerWidget::onApplyButton);
     connect(m_ui->cancelButton, &QPushButton::clicked, this,
@@ -469,6 +480,12 @@ void PackageFilterModel::setAcceptedPackageState(AndroidSdkPackage::PackageState
     invalidateFilter();
 }
 
+void PackageFilterModel::setAcceptedSearchPackage(const QString &name)
+{
+    m_searchText = name;
+    invalidateFilter();
+}
+
 bool PackageFilterModel::filterAcceptsRow(int sourceRow, const QModelIndex &sourceParent) const
 {
     QModelIndex srcIndex = sourceModel()->index(sourceRow, 0, sourceParent);
@@ -479,19 +496,24 @@ bool PackageFilterModel::filterAcceptsRow(int sourceRow, const QModelIndex &sour
       return (AndroidSdkPackage::PackageState)i.data(AndroidSdkModel::PackageStateRole).toInt();
     };
 
+    auto packageFound = [this](const QModelIndex& i) {
+        return i.data(AndroidSdkModel::packageNameColumn).toString()
+                .contains(m_searchText, Qt::CaseInsensitive);
+    };
+
     bool showTopLevel = false;
     if (!sourceParent.isValid()) {
         // Top Level items
         for (int row = 0; row < sourceModel()->rowCount(srcIndex); ++row) {
             QModelIndex childIndex = sourceModel()->index(row, 0, srcIndex);
-            if (m_packageState & packageState(childIndex)) {
+            if ((m_packageState & packageState(childIndex) && packageFound(childIndex))) {
                 showTopLevel = true;
                 break;
             }
         }
     }
 
-    return showTopLevel || (packageState(srcIndex) & m_packageState);
+    return showTopLevel || (packageState(srcIndex) & m_packageState) && packageFound(srcIndex);
 }
 
 OptionsDialog::OptionsDialog(AndroidSdkManager *sdkManager, const QStringList &args,

src/plugins/android/androidsdkmanagerwidget.ui

@@ -51,27 +51,7 @@
        <property name="spacing">
         <number>4</number>
        </property>
-       <item row="0" column="0" colspan="2">
-        <layout class="QHBoxLayout" name="horizontalLayout">
-         <item>
-          <widget class="QCheckBox" name="expandCheck">
-           <property name="sizePolicy">
-            <sizepolicy hsizetype="Preferred" vsizetype="Fixed">
-             <horstretch>0</horstretch>
-             <verstretch>0</verstretch>
-            </sizepolicy>
-           </property>
-           <property name="text">
-            <string>Expand All</string>
-           </property>
-           <property name="checkable">
-            <bool>true</bool>
-           </property>
-          </widget>
-         </item>
-        </layout>
-       </item>
-       <item row="1" column="0">
+       <item row="2" column="0" colspan="4">
         <widget class="QTreeView" name="packagesView">
          <property name="indentation">
           <number>20</number>
@@ -81,7 +61,7 @@
          </attribute>
         </widget>
        </item>
-       <item row="1" column="1">
+       <item row="2" column="4">
         <layout class="QVBoxLayout" name="verticalLayout_2">
          <item>
           <widget class="QPushButton" name="updateInstalledButton">
@@ -149,6 +129,16 @@
          </item>
         </layout>
        </item>
+       <item row="1" column="1">
+        <widget class="Utils::FancyLineEdit" name="searchField"/>
+       </item>
+       <item row="1" column="2">
+        <widget class="QCheckBox" name="expandCheck">
+         <property name="text">
+          <string>Expand All</string>
+         </property>
+        </widget>
+       </item>
       </layout>
      </widget>
      <widget class="QWidget" name="outputStack">
@@ -234,6 +224,13 @@
    </item>
   </layout>
  </widget>
+ <customwidgets>
+  <customwidget>
+   <class>Utils::FancyLineEdit</class>
+   <extends>QLineEdit</extends>
+   <header location="global">utils/fancylineedit.h</header>
+  </customwidget>
+ </customwidgets>
  <tabstops>
   <tabstop>packagesView</tabstop>
   <tabstop>showAllRadio</tabstop>