From d194b02e28132df3ea3da961299e969614b8a185 Mon Sep 17 00:00:00 2001 From: flow Date: Tue, 11 Oct 2022 14:19:29 -0300 Subject: [PATCH] fix: prevent images overriding content when changing pages Signed-off-by: flow --- launcher/ui/pages/modplatform/ModPage.cpp | 1 + .../pages/modplatform/modrinth/ModrinthPage.cpp | 1 + launcher/ui/widgets/ProjectDescriptionPage.cpp | 6 ++++++ launcher/ui/widgets/ProjectDescriptionPage.h | 8 ++++++++ launcher/ui/widgets/VariableSizedImageObject.cpp | 13 +++++++++++-- launcher/ui/widgets/VariableSizedImageObject.h | 15 ++++++++++++--- 6 files changed, 39 insertions(+), 5 deletions(-) diff --git a/launcher/ui/pages/modplatform/ModPage.cpp b/launcher/ui/pages/modplatform/ModPage.cpp index 4fce0242..153bb049 100644 --- a/launcher/ui/pages/modplatform/ModPage.cpp +++ b/launcher/ui/pages/modplatform/ModPage.cpp @@ -350,4 +350,5 @@ void ModPage::updateUi() HoeDown h; ui->packDescription->setHtml(text + (current.extraData.body.isEmpty() ? current.description : h.process(current.extraData.body.toUtf8()))); + ui->packDescription->flush(); } diff --git a/launcher/ui/pages/modplatform/modrinth/ModrinthPage.cpp b/launcher/ui/pages/modplatform/modrinth/ModrinthPage.cpp index 70f1388a..4482774c 100644 --- a/launcher/ui/pages/modplatform/modrinth/ModrinthPage.cpp +++ b/launcher/ui/pages/modplatform/modrinth/ModrinthPage.cpp @@ -284,6 +284,7 @@ void ModrinthPage::updateUI() text += h.process(current.extra.body.toUtf8()); ui->packDescription->setHtml(text + current.description); + ui->packDescription->flush(); } void ModrinthPage::suggestCurrent() diff --git a/launcher/ui/widgets/ProjectDescriptionPage.cpp b/launcher/ui/widgets/ProjectDescriptionPage.cpp index 2e6f6d97..c7e79a17 100644 --- a/launcher/ui/widgets/ProjectDescriptionPage.cpp +++ b/launcher/ui/widgets/ProjectDescriptionPage.cpp @@ -15,3 +15,9 @@ void ProjectDescriptionPage::setMetaEntry(QString entry) if (m_image_text_object) m_image_text_object->setMetaEntry(entry); } + +void ProjectDescriptionPage::flush() +{ + if (m_image_text_object) + m_image_text_object->flush(); +} diff --git a/launcher/ui/widgets/ProjectDescriptionPage.h b/launcher/ui/widgets/ProjectDescriptionPage.h index 8387d3fb..3dd85302 100644 --- a/launcher/ui/widgets/ProjectDescriptionPage.h +++ b/launcher/ui/widgets/ProjectDescriptionPage.h @@ -19,6 +19,14 @@ class ProjectDescriptionPage final : public QTextBrowser { void setMetaEntry(QString entry); + public slots: + /** Flushes the current processing happening in the page. + * + * Should be called when changing the page's content entirely, to + * prevent old tasks from changing the new content. + */ + void flush(); + private: shared_qobject_ptr m_image_text_object; }; diff --git a/launcher/ui/widgets/VariableSizedImageObject.cpp b/launcher/ui/widgets/VariableSizedImageObject.cpp index 0efdecab..e57f7e95 100644 --- a/launcher/ui/widgets/VariableSizedImageObject.cpp +++ b/launcher/ui/widgets/VariableSizedImageObject.cpp @@ -66,6 +66,11 @@ void VariableSizedImageObject::drawObject(QPainter* painter, painter->drawImage(rect, image); } +void VariableSizedImageObject::flush() +{ + m_fetching_images.clear(); +} + void VariableSizedImageObject::parseImage(QTextDocument* doc, QImage image, int posInDocument) { QTextCursor cursor(doc); @@ -85,7 +90,7 @@ void VariableSizedImageObject::parseImage(QTextDocument* doc, QImage image, int void VariableSizedImageObject::loadImage(QTextDocument* doc, const QUrl& source, int posInDocument) { - m_fetching_images.append(source); + m_fetching_images.insert(source); MetaEntryPtr entry = APPLICATION->metacache()->resolveEntry( m_meta_entry, @@ -99,6 +104,10 @@ void VariableSizedImageObject::loadImage(QTextDocument* doc, const QUrl& source, connect(job, &NetJob::succeeded, [this, doc, full_entry_path, source_url, posInDocument] { qDebug() << "Loaded resource at" << full_entry_path; + // If we flushed, don't proceed. + if (!m_fetching_images.contains(source_url)) + return; + QImage image(full_entry_path); doc->addResource(QTextDocument::ImageResource, source_url, image); @@ -110,7 +119,7 @@ void VariableSizedImageObject::loadImage(QTextDocument* doc, const QUrl& source, doc->adjustSize(); doc->setPageSize(size); - m_fetching_images.removeOne(source_url); + m_fetching_images.remove(source_url); }); connect(job, &NetJob::finished, job, &NetJob::deleteLater); diff --git a/launcher/ui/widgets/VariableSizedImageObject.h b/launcher/ui/widgets/VariableSizedImageObject.h index 11563a37..137487ee 100644 --- a/launcher/ui/widgets/VariableSizedImageObject.h +++ b/launcher/ui/widgets/VariableSizedImageObject.h @@ -28,7 +28,7 @@ * Why? Because we want to re-scale images dynamically based on the document's size, in order to * not have images being weirdly cropped out in different resolutions. */ -class VariableSizedImageObject : public QObject, public QTextObjectInterface { +class VariableSizedImageObject final : public QObject, public QTextObjectInterface { Q_OBJECT Q_INTERFACES(QTextObjectInterface) @@ -38,7 +38,15 @@ class VariableSizedImageObject : public QObject, public QTextObjectInterface { void setMetaEntry(QString meta_entry) { m_meta_entry = meta_entry; } - protected: + public slots: + /** Stops all currently loading images from modifying the document. + * + * This does not stop the ongoing network tasks, it only prevents their result + * from impacting the document any further. + */ + void flush(); + + private: /** Adds the image to the document, in the given position. */ void parseImage(QTextDocument* doc, QImage image, int posInDocument); @@ -49,7 +57,8 @@ class VariableSizedImageObject : public QObject, public QTextObjectInterface { */ void loadImage(QTextDocument* doc, const QUrl& source, int posInDocument); + private: QString m_meta_entry; - QList m_fetching_images; + QSet m_fetching_images; };