Nim: Move NimbleTaskStepWidget closer to NimbleTaskStep

Next step towards NimbleTaskStep aspectification.

Change-Id: Ifdb7d942e29ab99da01c6797d1edddd68afc5e30
Reviewed-by: Christian Stenger <christian.stenger@qt.io>

src/plugins/nim/project/nimbletaskstep.cpp

@@ -24,8 +24,9 @@
 ****************************************************************************/
 
 #include "nimbletaskstep.h"
-#include "nimbletaskstepwidget.h"
+
 #include "nimconstants.h"
+#include "nimblebuildsystem.h"
 #include "nimbleproject.h"
 
 #include <projectexplorer/buildstep.h>
@@ -33,13 +34,174 @@
 #include <projectexplorer/processparameters.h>
 #include <projectexplorer/projectexplorerconstants.h>
 
+#include <utils/algorithm.h>
 #include <utils/fileutils.h>
 
+#include <QFormLayout>
+#include <QLineEdit>
+#include <QListView>
+#include <QStandardItemModel>
 #include <QStandardPaths>
 
-using namespace Nim;
 using namespace ProjectExplorer;
 
+namespace Nim {
+
+class NimbleTaskStepWidget : public BuildStepConfigWidget
+{
+    Q_DECLARE_TR_FUNCTIONS(Nim::NimbleTaskStep)
+
+public:
+    explicit NimbleTaskStepWidget(NimbleTaskStep *buildStep);
+
+    void selectedTaskChanged(const QString &name)
+    {
+        auto taskStep = dynamic_cast<NimbleTaskStep *>(step());
+        QTC_ASSERT(taskStep, return);
+        taskStep->setTaskName(name);
+    }
+
+private:
+    void updateTaskList();
+
+    void selectTask(const QString &name);
+
+    void onDataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight, const QVector<int> &roles);
+
+    void uncheckedAllDifferentFrom(QStandardItem *item);
+
+    QStandardItemModel m_tasks;
+    bool m_selecting = false;
+};
+
+NimbleTaskStepWidget::NimbleTaskStepWidget(NimbleTaskStep *bs)
+    : BuildStepConfigWidget(bs)
+{
+    auto taskArgumentsLineEdit = new QLineEdit(this);
+    taskArgumentsLineEdit->setText(bs->taskArgs());
+
+    auto taskList = new QListView(this);
+    taskList->setFrameShape(QFrame::StyledPanel);
+    taskList->setSelectionMode(QAbstractItemView::NoSelection);
+    taskList->setSelectionBehavior(QAbstractItemView::SelectRows);
+    taskList->setModel(&m_tasks);
+
+    auto formLayout = new QFormLayout(this);
+    formLayout->setSizeConstraint(QLayout::SetDefaultConstraint);
+    formLayout->setFieldGrowthPolicy(QFormLayout::ExpandingFieldsGrow);
+
+    formLayout->addRow(tr("Task arguments:"), taskArgumentsLineEdit);
+    formLayout->addRow(tr("Tasks:"), taskList);
+
+    auto buildSystem = dynamic_cast<NimbleBuildSystem *>(bs->buildSystem());
+    QTC_ASSERT(buildSystem, return);
+
+    connect(&m_tasks, &QAbstractItemModel::dataChanged, this, &NimbleTaskStepWidget::onDataChanged);
+
+    updateTaskList();
+    connect(buildSystem, &NimbleBuildSystem::tasksChanged, this, &NimbleTaskStepWidget::updateTaskList);
+
+    selectTask(bs->taskName());
+    connect(bs, &NimbleTaskStep::taskNameChanged, this, &NimbleTaskStepWidget::selectTask);
+    connect(bs, &NimbleTaskStep::taskNameChanged, this, &NimbleTaskStepWidget::recreateSummary);
+
+    connect(bs, &NimbleTaskStep::taskArgsChanged, taskArgumentsLineEdit, &QLineEdit::setText);
+    connect(bs, &NimbleTaskStep::taskArgsChanged, this, &NimbleTaskStepWidget::recreateSummary);
+    connect(taskArgumentsLineEdit, &QLineEdit::textChanged, bs ,&NimbleTaskStep::setTaskArgs);
+
+    setSummaryUpdater([this, bs] {
+        return QString("<b>%1:</b> nimble %2 %3")
+                .arg(displayName(), bs->taskName(), bs->taskArgs());
+    });
+}
+
+void NimbleTaskStepWidget::updateTaskList()
+{
+    auto buildSystem = dynamic_cast<NimbleBuildSystem *>(step()->buildSystem());
+    QTC_ASSERT(buildSystem, return);
+    const std::vector<NimbleTask> &tasks = buildSystem->tasks();
+
+    QSet<QString> newTasks;
+    for (const NimbleTask &t : tasks)
+        newTasks.insert(t.name);
+
+    QSet<QString> currentTasks;
+    for (int i = 0; i < m_tasks.rowCount(); ++i)
+        currentTasks.insert(m_tasks.item(i)->text());
+
+    const QSet<QString> added = newTasks - currentTasks;
+    const QSet<QString> removed = currentTasks - newTasks;
+
+    for (const QString &name : added) {
+        auto item = new QStandardItem();
+        item->setText(name);
+        item->setCheckable(true);
+        item->setCheckState(Qt::Unchecked);
+        item->setEditable(false);
+        item->setSelectable(false);
+        m_tasks.appendRow(item);
+    }
+
+    for (int i = m_tasks.rowCount() - 1; i >= 0; i--)
+        if (removed.contains(m_tasks.item(i)->text()))
+            m_tasks.removeRow(i);
+
+    m_tasks.sort(0);
+}
+
+void NimbleTaskStepWidget::selectTask(const QString &name)
+{
+    if (m_selecting)
+        return;
+    m_selecting = true;
+
+    QList<QStandardItem *> items = m_tasks.findItems(name);
+    QStandardItem *item = items.empty() ? nullptr : items.front();
+    uncheckedAllDifferentFrom(item);
+    if (item)
+        item->setCheckState(Qt::Checked);
+
+    selectedTaskChanged(name);
+
+    m_selecting = false;
+}
+
+void NimbleTaskStepWidget::onDataChanged(const QModelIndex &topLeft,
+                                         const QModelIndex &bottomRight,
+                                         const QVector<int> &roles)
+{
+    QTC_ASSERT(topLeft == bottomRight, return );
+    if (!roles.contains(Qt::CheckStateRole))
+        return;
+
+    auto item = m_tasks.itemFromIndex(topLeft);
+    if (!item)
+        return;
+
+    if (m_selecting)
+        return;
+    m_selecting = true;
+
+    if (item->checkState() == Qt::Checked) {
+        uncheckedAllDifferentFrom(item);
+        selectedTaskChanged(item->text());
+    } else if (item->checkState() == Qt::Unchecked) {
+        selectedTaskChanged(QString());
+    }
+
+    m_selecting = false;
+}
+
+void NimbleTaskStepWidget::uncheckedAllDifferentFrom(QStandardItem *toSkip)
+{
+    for (int i = 0; i < m_tasks.rowCount(); ++i) {
+        auto item = m_tasks.item(i);
+        if (!item || item == toSkip)
+            continue;
+        item->setCheckState(Qt::Unchecked);
+    }
+}
+
 NimbleTaskStep::NimbleTaskStep(BuildStepList *parentList, Utils::Id id)
     : AbstractProcessStep(parentList, id)
 {
@@ -118,6 +280,8 @@ bool NimbleTaskStep::validate()
     return true;
 }
 
+// Factory
+
 NimbleTaskStepFactory::NimbleTaskStepFactory()
 {
     registerStep<NimbleTaskStep>(Constants::C_NIMBLETASKSTEP_ID);
@@ -128,3 +292,5 @@ NimbleTaskStepFactory::NimbleTaskStepFactory()
     setSupportedConfiguration(Constants::C_NIMBLEBUILDCONFIGURATION_ID);
     setRepeatable(true);
 }
+
+} // Nim