forked from quickshell/quickshell
outfoxxed
1da43be6c0
The hot reloader previously attempted to figure out which parent a component would attach to as it loaded. This was fairly error prone as it was heuristic based and didn't work as soon as you split definitions into multiple QML files. The new hot reloader functions by first completely building the widget tree, then applying the old tree to the first tree and pulling out usable values. Proxy windows now wait to appear until being reloaded. Additionally added support for `reloadableId` to help match a Reloadable to its value in the previous widget tree.
56 lines
1.6 KiB
C++
56 lines
1.6 KiB
C++
#pragma once
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#include <qcontainerfwd.h>
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#include <qlist.h>
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#include <qlogging.h>
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#include <qmap.h>
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#include <qobject.h>
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#include <qqmlcomponent.h>
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#include <qqmlparserstatus.h>
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#include <qtmetamacros.h>
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#include "reload.hpp"
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// extremely inefficient map
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template <typename K, typename V>
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class AwfulMap {
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public:
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[[nodiscard]] bool contains(const K& key) const;
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[[nodiscard]] V* get(const K& key);
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void insert(K key, V value); // assumes no duplicates
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bool remove(const K& key); // returns true if anything was removed
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QList<QPair<K, V>> values;
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};
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///! Creates instances of a component based on a given set of variants.
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/// Creates and destroys instances of the given component when the given property changes.
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///
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/// See [QuickShell.screens] for an example of using `Variants` to create copies of a window per
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/// screen.
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///
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/// [QuickShell.screens]: ../quickshell#prop.screens
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class Variants: public Reloadable {
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Q_OBJECT;
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/// The component to create instances of
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Q_PROPERTY(QQmlComponent* component MEMBER mComponent);
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/// The list of sets of properties to create instances with.
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/// Each set creates an instance of the component, which are updated when the input sets update.
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Q_PROPERTY(QList<QVariant> variants MEMBER mVariants WRITE setVariants);
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Q_CLASSINFO("DefaultProperty", "component");
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QML_ELEMENT;
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public:
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explicit Variants(QObject* parent = nullptr): Reloadable(parent) {}
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void onReload(QObject* oldInstance) override;
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void componentComplete() override;
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private:
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void setVariants(QVariantList variants);
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void updateVariants();
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QQmlComponent* mComponent = nullptr;
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QVariantList mVariants;
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AwfulMap<QVariantMap, QObject*> instances;
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};
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