input: Add fully configurable trackpad gestures (#11490)

Adds configurable trackpad gestures

1 files changed, 145 insertions, 0 deletions

diff --git a/src/managers/input/trackpad/gestures/CloseGesture.cpp b/src/managers/input/trackpad/gestures/CloseGesture.cpp
new file mode 100644
index 00000000..59beb712
--- /dev/null
+++ b/src/managers/input/trackpad/gestures/CloseGesture.cpp
@@ -0,0 +1,145 @@
+#include "CloseGesture.hpp"
+
+#include "../../../../Compositor.hpp"
+#include "../../../../managers/LayoutManager.hpp"
+#include "../../../../managers/animation/DesktopAnimationManager.hpp"
+#include "../../../../render/Renderer.hpp"
+#include "../../../../managers/eventLoop/EventLoopManager.hpp"
+#include "../../../../managers/eventLoop/EventLoopTimer.hpp"
+#include "../../../../config/ConfigValue.hpp"
+
+constexpr const float                   MAX_DISTANCE = 200.F;
+
+static std::vector<SP<CEventLoopTimer>> trackpadCloseTimers;
+
+//
+static Vector2D lerpVal(const Vector2D& from, const Vector2D& to, const float& t) {
+    return Vector2D{
+        from.x + ((to.x - from.x) * t),
+        from.y + ((to.y - from.y) * t),
+    };
+}
+
+static float lerpVal(const float& from, const float& to, const float& t) {
+    return from + ((to - from) * t);
+}
+
+void CCloseTrackpadGesture::begin(const ITrackpadGesture::STrackpadGestureBegin& e) {
+    ITrackpadGesture::begin(e);
+
+    m_window = g_pCompositor->m_lastWindow;
+
+    if (!m_window)
+        return;
+
+    m_alphaFrom = m_window->m_alpha->goal();
+    m_posFrom   = m_window->m_realPosition->goal();
+    m_sizeFrom  = m_window->m_realSize->goal();
+
+    g_pDesktopAnimationManager->startAnimation(m_window.lock(), CDesktopAnimationManager::ANIMATION_TYPE_OUT, true);
+    *m_window->m_alpha = 0.f;
+
+    m_alphaTo = m_window->m_alpha->goal();
+    m_posTo   = m_window->m_realPosition->goal();
+    m_sizeTo  = m_window->m_realSize->goal();
+
+    m_window->m_alpha->setValueAndWarp(m_alphaFrom);
+    m_window->m_realPosition->setValueAndWarp(m_posFrom);
+    m_window->m_realSize->setValueAndWarp(m_sizeFrom);
+
+    m_lastDelta = 0.F;
+}
+
+void CCloseTrackpadGesture::update(const ITrackpadGesture::STrackpadGestureUpdate& e) {
+    if (!m_window)
+        return;
+
+    g_pHyprRenderer->damageWindow(m_window.lock());
+
+    m_lastDelta += distance(e);
+
+    const auto FADEPERCENT = std::clamp(m_lastDelta / MAX_DISTANCE, 0.F, 1.F);
+
+    m_window->m_alpha->setValueAndWarp(lerpVal(m_alphaFrom, m_alphaTo, FADEPERCENT));
+    m_window->m_realPosition->setValueAndWarp(lerpVal(m_posFrom, m_posTo, FADEPERCENT));
+    m_window->m_realSize->setValueAndWarp(lerpVal(m_sizeFrom, m_sizeTo, FADEPERCENT));
+
+    g_pDecorationPositioner->onWindowUpdate(m_window.lock());
+
+    g_pHyprRenderer->damageWindow(m_window.lock());
+}
+
+void CCloseTrackpadGesture::end(const ITrackpadGesture::STrackpadGestureEnd& e) {
+    static const auto PTIMEOUT = CConfigValue<Hyprlang::INT>("gestures:close_max_timeout");
+
+    if (!m_window)
+        return;
+
+    const auto COMPLETION = std::clamp(m_lastDelta / MAX_DISTANCE, 0.F, 1.F);
+
+    if (COMPLETION < 0.2F) {
+        // revert the animation
+        g_pHyprRenderer->damageWindow(m_window.lock());
+        *m_window->m_alpha        = m_alphaFrom;
+        *m_window->m_realPosition = m_posFrom;
+        *m_window->m_realSize     = m_sizeFrom;
+        return;
+    }
+
+    // commence. Close the window and restore our current state to avoid a harsh anim
+    const auto CURRENT_ALPHA = m_window->m_alpha->value();
+    const auto CURRENT_POS   = m_window->m_realPosition->value();
+    const auto CURRENT_SIZE  = m_window->m_realSize->value();
+
+    g_pCompositor->closeWindow(m_window.lock());
+
+    m_window->m_alpha->setValueAndWarp(CURRENT_ALPHA);
+    m_window->m_realPosition->setValueAndWarp(CURRENT_POS);
+    m_window->m_realSize->setValueAndWarp(CURRENT_SIZE);
+
+    // this is a kinda hack, but oh well.
+    m_window->m_realPosition->setCallbackOnBegin(
+        [CURRENT_POS, window = m_window](auto) {
+            if (!window || !window->m_isMapped)
+                return;
+
+            window->m_realPosition->setValueAndWarp(CURRENT_POS);
+        },
+        false);
+
+    m_window->m_realSize->setCallbackOnBegin(
+        [CURRENT_SIZE, window = m_window](auto) {
+            if (!window || !window->m_isMapped)
+                return;
+
+            window->m_realSize->setValueAndWarp(CURRENT_SIZE);
+        },
+        false);
+
+    // we give windows 2s to close. If they don't, pop them back in.
+    auto timer = makeShared<CEventLoopTimer>(
+        std::chrono::milliseconds(*PTIMEOUT),
+        [window = m_window](SP<CEventLoopTimer> self, void* data) {
+            std::erase(trackpadCloseTimers, self);
+
+            // if after 2 seconds the window is still alive and mapped, we revert our changes.
+            if (!window)
+                return;
+
+            window->m_realPosition->setCallbackOnBegin(nullptr);
+            window->m_realSize->setCallbackOnBegin(nullptr);
+
+            if (!window->m_isMapped)
+                return;
+
+            g_pLayoutManager->getCurrentLayout()->recalculateWindow(window.lock());
+            g_pCompositor->updateWindowAnimatedDecorationValues(window.lock());
+            window->sendWindowSize(true);
+            *window->m_alpha = 1.F;
+        },
+        nullptr);
+    trackpadCloseTimers.emplace_back(timer);
+    g_pEventLoopManager->addTimer(timer);
+
+    m_window.reset();
+}