From 5936c7b65ceef28fb569e966f2bcbe3aed3fa999 Mon Sep 17 00:00:00 2001
From: flow <flowlnlnln@gmail.com>
Date: Fri, 15 Jul 2022 11:20:08 -0300
Subject: [PATCH] change: preserve search term across different mod providers

Signed-off-by: flow <flowlnlnln@gmail.com>
---
 launcher/ui/dialogs/ModDownloadDialog.cpp | 20 ++++++++++++++++++++
 launcher/ui/dialogs/ModDownloadDialog.h   |  5 ++++-
 launcher/ui/pages/modplatform/ModPage.cpp | 11 ++++++++++-
 launcher/ui/pages/modplatform/ModPage.h   |  5 +++++
 launcher/ui/widgets/PageContainer.cpp     |  9 ++++++++-
 launcher/ui/widgets/PageContainer.h       |  4 ++++
 6 files changed, 51 insertions(+), 3 deletions(-)

diff --git a/launcher/ui/dialogs/ModDownloadDialog.cpp b/launcher/ui/dialogs/ModDownloadDialog.cpp
index 31253bc2..af6704d9 100644
--- a/launcher/ui/dialogs/ModDownloadDialog.cpp
+++ b/launcher/ui/dialogs/ModDownloadDialog.cpp
@@ -55,6 +55,8 @@ ModDownloadDialog::ModDownloadDialog(const std::shared_ptr<ModFolderModel>& mods
 
     m_container->addButtons(m_buttons);
 
+    connect(m_container, &PageContainer::selectedPageChanged, this, &ModDownloadDialog::selectedPageChanged);
+
     // Bonk Qt over its stupid head and make sure it understands which button is the default one...
     // See: https://stackoverflow.com/questions/24556831/qbuttonbox-set-default-button
     auto OkButton = m_buttons->button(QDialogButtonBox::Ok);
@@ -163,3 +165,21 @@ const QList<ModDownloadTask*> ModDownloadDialog::getTasks()
 {
     return modTask.values();
 }
+
+void ModDownloadDialog::selectedPageChanged(BasePage* previous, BasePage* selected)
+{
+    auto* prev_page = dynamic_cast<ModPage*>(previous);
+    if (!prev_page) {
+        qCritical() << "Page '" << previous->displayName() << "' in ModDownloadDialog is not a ModPage!";
+        return;
+    }
+
+    auto* selected_page = dynamic_cast<ModPage*>(selected);
+    if (!selected_page) {
+        qCritical() << "Page '" << selected->displayName() << "' in ModDownloadDialog is not a ModPage!";
+        return;
+    }
+
+    // Same effect as having a global search bar
+    selected_page->setSearchTerm(prev_page->getSearchTerm());
+}
diff --git a/launcher/ui/dialogs/ModDownloadDialog.h b/launcher/ui/dialogs/ModDownloadDialog.h
index 2a26c849..18a5f0f3 100644
--- a/launcher/ui/dialogs/ModDownloadDialog.h
+++ b/launcher/ui/dialogs/ModDownloadDialog.h
@@ -34,7 +34,7 @@ class PageContainer;
 class QDialogButtonBox;
 class ModrinthModPage;
 
-class ModDownloadDialog : public QDialog, public BasePageProvider
+class ModDownloadDialog final : public QDialog, public BasePageProvider
 {
     Q_OBJECT
 
@@ -58,6 +58,9 @@ public slots:
     void accept() override;
     void reject() override;
 
+private slots:
+    void selectedPageChanged(BasePage* previous, BasePage* selected);
+
 private:
     Ui::ModDownloadDialog *ui = nullptr;
     PageContainer * m_container = nullptr;
diff --git a/launcher/ui/pages/modplatform/ModPage.cpp b/launcher/ui/pages/modplatform/ModPage.cpp
index c355f069..e052b655 100644
--- a/launcher/ui/pages/modplatform/ModPage.cpp
+++ b/launcher/ui/pages/modplatform/ModPage.cpp
@@ -138,7 +138,16 @@ void ModPage::triggerSearch()
         updateSelectionButton();
     }
 
-    listModel->searchWithTerm(ui->searchEdit->text(), ui->sortByBox->currentIndex(), changed);
+    listModel->searchWithTerm(getSearchTerm(), ui->sortByBox->currentIndex(), changed);
+}
+
+QString ModPage::getSearchTerm() const
+{
+    return ui->searchEdit->text();
+}
+void ModPage::setSearchTerm(QString term)
+{
+    ui->searchEdit->setText(term);
 }
 
 void ModPage::onSelectionChanged(QModelIndex first, QModelIndex second)
diff --git a/launcher/ui/pages/modplatform/ModPage.h b/launcher/ui/pages/modplatform/ModPage.h
index cf00e16e..4990c1c0 100644
--- a/launcher/ui/pages/modplatform/ModPage.h
+++ b/launcher/ui/pages/modplatform/ModPage.h
@@ -45,6 +45,11 @@ class ModPage : public QWidget, public BasePage {
     auto getFilter() const -> const std::shared_ptr<ModFilterWidget::Filter> { return m_filter; }
     auto getDialog() const -> const ModDownloadDialog* { return dialog; }
 
+    /** Get the current term in the search bar. */
+    auto getSearchTerm() const -> QString;
+    /** Programatically set the term in the search bar. */
+    void setSearchTerm(QString);
+
     auto getCurrent() -> ModPlatform::IndexedPack& { return current; }
     void updateModVersions(int prev_count = -1);
 
diff --git a/launcher/ui/widgets/PageContainer.cpp b/launcher/ui/widgets/PageContainer.cpp
index 419ccb66..8d606820 100644
--- a/launcher/ui/widgets/PageContainer.cpp
+++ b/launcher/ui/widgets/PageContainer.cpp
@@ -244,7 +244,14 @@ void PageContainer::help()
 
 void PageContainer::currentChanged(const QModelIndex &current)
 {
-    showPage(current.isValid() ? m_proxyModel->mapToSource(current).row() : -1);
+    int selected_index = current.isValid() ? m_proxyModel->mapToSource(current).row() : -1;
+
+    auto* selected = m_model->pages().at(selected_index);
+    auto* previous = m_currentPage;
+
+    emit selectedPageChanged(previous, selected);
+
+    showPage(selected_index);
 }
 
 bool PageContainer::prepareToClose()
diff --git a/launcher/ui/widgets/PageContainer.h b/launcher/ui/widgets/PageContainer.h
index 86f549eb..80d87a9b 100644
--- a/launcher/ui/widgets/PageContainer.h
+++ b/launcher/ui/widgets/PageContainer.h
@@ -95,6 +95,10 @@ private:
 public slots:
     void help();
 
+signals:
+    /** Emitted when the currently selected page is changed */
+    void selectedPageChanged(BasePage* previous, BasePage* selected);
+
 private slots:
     void currentChanged(const QModelIndex &current);
     void showPage(int row);