ItsDrike/hyprland-dwindle-autogroup
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Full rewrite

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This commit is contained in:
ItsDrike 2023-10-02 22:27:13 +02:00
parent e5661c4a37
commit 3505d4aa5b
Signed by: ItsDrike
GPG key ID: FA2745890B7048C0
6 changed files with 302 additions and 160 deletions
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9
include/func_finder.hpp Normal file
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#include "globals.hpp"
/* Find function pointer from the Hyprland binary by it's name and demangledName
*
* \param[in] name Simple name of the function (i.e. createGroup)
* \param[in] demangledName Demangled name of the function (i.e. CWindow::createGroup())
* \return Raw pointer to the found function
*/
void* findHyprlandFunction(const std::string& name, const std::string& demangledName);

14
include/globals.hpp
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#pragma once
#include <hyprland/src/layout/DwindleLayout.hpp>
#include <hyprland/src/plugins/HookSystem.hpp>
#include <hyprland/src/plugins/PluginAPI.hpp>
const CColor s_notifyColor = {0x61 / 255.0f, 0xAF / 255.0f, 0xEF / 255.0f, 1.0f}; // RGBA
const PLUGIN_DESCRIPTION_INFO s_pluginDescription = {"dwindle-autogroup", "Dwindle Autogroup", "ItsDrike", "1.0"};
inline HANDLE PHANDLE = nullptr;
typedef void* (*createGroupFuncT)(CWindow*);
inline CFunctionHook* g_pCreateGroupHook = nullptr;
typedef void* (*destroyGroupFuncT)(CWindow*);
inline CFunctionHook* g_pDestroyGroupHook = nullptr;
typedef SDwindleNodeData* (*nodeFromWindowFuncT)(void*, CWindow*);
inline nodeFromWindowFuncT g_pNodeFromWindow = nullptr;

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include/plugin.hpp Normal file
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#include "globals.hpp"
/* New custom function replacing the original CWindow::createGroup function
*/
void newCreateGroup(CWindow*);
/* New custom function replacing the original CWindow::createGroup function
*/
void newDestroyGroup(CWindow*);

62
src/func_finder.cpp Normal file
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#include "func_finder.hpp"
/* Debug function for converting vector of strings to pretty-printed representation
*
* \param[in] Vector of strings
* \return Pretty printed single-line representation of the vector
*/
std::string vectorToString(const std::vector<std::string>& vec)
{
std::ostringstream oss;
oss << "[";
for (size_t i = 0; i < vec.size(); ++i) {
oss << std::quoted(vec[i]);
// Add a comma after each element except the last one
if (i < vec.size() - 1) {
oss << ", ";
}
}
oss << "]";
return oss.str();
}
void* findHyprlandFunction(const std::string& name, const std::string& demangledName)
{
const auto METHODS = HyprlandAPI::findFunctionsByName(PHANDLE, name);
if (METHODS.size() == 0) {
Debug::log(
ERR, "[dwindle-autogroup] Function {} wasn't found in Hyprland binary! This function's signature probably changed, report this", name);
HyprlandAPI::addNotification(PHANDLE, "[dwindle-autogroup] Initialization failed! " + name + " function wasn't found", s_notifyColor, 10000);
return nullptr;
}
void* res = nullptr;
for (auto& method : METHODS) {
if (method.demangled == demangledName) {
res = method.address;
break;
}
}
// Use std::transform to extract the demangled strings from function matches
std::vector<std::string> demangledStrings;
std::transform(METHODS.begin(), METHODS.end(), std::back_inserter(demangledStrings), [](const SFunctionMatch& match) { return match.demangled; });
if (res == nullptr) {
Debug::log(ERR,
"[dwindle-autogroup] Demangled function {} wasn't found in matches for function name {} in Hyprland binary! This function's "
"signature probably "
"changed, report this. Found matches: {}",
demangledName,
name,
vectorToString(demangledStrings));
HyprlandAPI::addNotification(
PHANDLE, "[dwindle-autogroup] Initialization failed! " + name + " function (demangled) wasn't found", s_notifyColor, 10000);
return nullptr;
}
return res;
}

207
src/main.cpp
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@ -1,134 +1,6 @@
#include "func_finder.hpp"
#include "globals.hpp"
#include <hyprland/src/Window.hpp>
#include <hyprland/src/layout/DwindleLayout.hpp>
#include <hyprland/src/managers/KeybindManager.hpp>
#include <hyprland/src/managers/LayoutManager.hpp>
#include <hyprland/src/render/decorations/CHyprGroupBarDecoration.hpp>
const CColor s_pluginColor = {0x61 / 255.0f, 0xAF / 255.0f, 0xEF / 255.0f, 1.0f};
inline std::function<void(std::string)> originalToggleGroup = nullptr;
typedef SDwindleNodeData* (*nodeFromWindowT)(void*, CWindow*);
inline nodeFromWindowT g_pNodeFromWindow = nullptr;
void collectChildNodes(std::deque<SDwindleNodeData*>* pDeque, SDwindleNodeData* node)
{
if (node->isNode) {
collectChildNodes(pDeque, node->children[0]);
collectChildNodes(pDeque, node->children[1]);
}
else {
pDeque->emplace_back(node);
}
}
/// This is partially from CKeybindManager::moveIntoGroup (dispatcher) function
/// but without making the new window focused.
void moveIntoGroup(CWindow* window, CWindow* groupRootWin)
{
// Remove this window from being shown by layout (it will become a part of a group)
g_pLayoutManager->getCurrentLayout()->onWindowRemoved(window);
// Create a group bar decoration for the window
// (if it's not already a group, in which case it should already have it)
if (!window->m_sGroupData.pNextWindow)
window->m_dWindowDecorations.emplace_back(std::make_unique<CHyprGroupBarDecoration>(window));
groupRootWin->insertWindowToGroup(window);
// Make sure to treat this window as hidden (will focus the group instead of this window
// on request activate). This is the behavior CWindow::setGroupCurrent uses.
window->setHidden(true);
}
void groupDissolve(const SDwindleNodeData* PNODE, CHyprDwindleLayout* layout)
{
CWindow* PWINDOW = PNODE->pWindow;
// This group only has this single winodw
if (PWINDOW->m_sGroupData.pNextWindow == PWINDOW) {
Debug::log(LOG, "Ignoring autogroup on single window dissolve");
originalToggleGroup("");
return;
}
Debug::log(LOG, "Dissolving group");
// We currently don't need any special logic for dissolving, just call the original func
originalToggleGroup("");
}
void groupCreate(const SDwindleNodeData* PNODE, CHyprDwindleLayout* layout)
{
const auto PWINDOW = PNODE->pWindow;
const auto PWORKSPACE = g_pCompositor->getWorkspaceByID(PNODE->workspaceID);
if (PWORKSPACE->m_bHasFullscreenWindow) {
Debug::log(LOG, "Ignoring autogroup on a fullscreen window");
originalToggleGroup("");
return;
}
if (!PNODE->pParent) {
Debug::log(LOG, "Ignoring autogroup for a solitary window");
originalToggleGroup("");
return;
}
Debug::log(LOG, "Creating group");
// Call the original toggleGroup function, and only do extra things afterwards
originalToggleGroup("");
std::deque<SDwindleNodeData*> newGroupMembers;
collectChildNodes(&newGroupMembers, PNODE->pParent->children[0] == PNODE ? PNODE->pParent->children[1] : PNODE->pParent->children[0]);
// Make sure one of the child nodes isn't itself a group
for (auto& n : newGroupMembers) {
if (n->pWindow->m_sGroupData.pNextWindow) {
Debug::log(LOG, "Ignoring autogroup for nested groups");
return;
}
}
// Add all of the children nodes into the group
for (auto& n : newGroupMembers) {
auto window = n->pWindow;
moveIntoGroup(window, PWINDOW);
}
}
void toggleGroup(std::string args)
{
// We only care about group creations, not group disolves
const auto PWINDOW = g_pCompositor->m_pLastWindow;
if (!PWINDOW || !g_pCompositor->windowValidMapped(PWINDOW))
return;
// Don't do anything if we're not on "dwindle" layout
IHyprLayout* layout = g_pLayoutManager->getCurrentLayout();
if (layout->getLayoutName() != "dwindle") {
Debug::log(LOG, "Ignoring autogroup for non-dinwle layout");
originalToggleGroup(args);
return;
}
CHyprDwindleLayout* cur_dwindle = (CHyprDwindleLayout*)layout;
const auto PNODE = g_pNodeFromWindow(cur_dwindle, PWINDOW);
if (!PNODE) {
Debug::log(LOG, "Ignoring autogroup for floating window");
originalToggleGroup(args);
return;
}
if (PWINDOW->m_sGroupData.pNextWindow) {
groupDissolve(PNODE, cur_dwindle);
}
else {
groupCreate(PNODE, cur_dwindle);
}
}
#include "plugin.hpp"
// Do NOT change this function.
APICALL EXPORT std::string PLUGIN_API_VERSION()
@ -136,44 +8,53 @@ APICALL EXPORT std::string PLUGIN_API_VERSION()
return HYPRLAND_API_VERSION;
}
APICALL EXPORT void PLUGIN_EXIT()
{
// Unhook the overridden functions and remove the hooks
if (g_pCreateGroupHook) {
g_pCreateGroupHook->unhook();
HyprlandAPI::removeFunctionHook(PHANDLE, g_pCreateGroupHook);
g_pCreateGroupHook = nullptr;
}
if (g_pDestroyGroupHook) {
g_pDestroyGroupHook->unhook();
HyprlandAPI::removeFunctionHook(PHANDLE, g_pDestroyGroupHook);
g_pCreateGroupHook = nullptr;
}
// Plugin unloading was successful
HyprlandAPI::addNotification(PHANDLE, "[dwindle-autogroup] Unloaded successfully!", s_notifyColor, 5000);
}
APICALL EXPORT PLUGIN_DESCRIPTION_INFO PLUGIN_INIT(HANDLE handle)
{
PHANDLE = handle;
// Get address of the private CHyprDwindleLayout::getNodeFromWindow member function, we'll need it in toggleGroup
static const auto METHODS = HyprlandAPI::findFunctionsByName(PHANDLE, "getNodeFromWindow");
g_pNodeFromWindow = (nodeFromWindowT)METHODS[1].address;
Debug::log(LOG, "[dwindle-autogroup] Loading Hyprland functions");
for (auto& method : METHODS) {
if (method.demangled == "CHyprDwindleLayout::getNodeFromWindow(CWindow*)") {
g_pNodeFromWindow = (nodeFromWindowT)method.address;
break;
}
// Find pointers to functions by name (from the Hyprland binary)
g_pNodeFromWindow = (nodeFromWindowFuncT)findHyprlandFunction("getNodeFromWindow", "\nCHyprDwindleLayout::getNodeFromWindow(CWindow*)");
auto pCreateGroup = findHyprlandFunction("createGroup", "\nCWindow::createGroup()");
auto pDestroyGroup = findHyprlandFunction("destroyGroup", "\nCWindow::destroyGroup()");
// Return immediately if one of the functions wasn't found
if (!g_pNodeFromWindow || !pCreateGroup || !pDestroyGroup) {
// Set all of the global function pointers to NULL, to avoid any potential issues
g_pNodeFromWindow = nullptr;
return s_pluginDescription;
}
if (g_pNodeFromWindow == nullptr) {
Debug::log(ERR, "getNodeFromWindow funnction for dwindle layout wasn't found! This function's signature probably changed, report this");
HyprlandAPI::addNotification(
PHANDLE, "[dwindle-autogroup] Initialization failed!! getNodeFromWindow functio not found", s_pluginColor, 10000);
}
else {
originalToggleGroup = g_pKeybindManager->m_mDispatchers["togglegroup"];
HyprlandAPI::addDispatcher(PHANDLE, "togglegroup", toggleGroup);
HyprlandAPI::reloadConfig();
HyprlandAPI::addNotification(PHANDLE, "[dwindle-autogroup] Initialized successfully!", s_pluginColor, 5000);
}
return {"dwindle-autogroup", "Dwindle Autogroup", "ItsDrike", "1.0"};
}
APICALL EXPORT void PLUGIN_EXIT()
{
// Since we added the "togglegroup" dispatcher ourselves, by default, the cleanup would just remove it
// but we want to restore it back to the original function instead
HyprlandAPI::removeDispatcher(PHANDLE, "togglegroup");
g_pKeybindManager->m_mDispatchers["togglegroup"] = originalToggleGroup;
HyprlandAPI::addNotification(PHANDLE, "[dwindle-autogroup] Unloaded successfully!", s_pluginColor, 5000);
Debug::log(LOG, "[dwindle-autogroup] Registering function hooks");
// Register function hooks, for overriding the original group methods
g_pCreateGroupHook = HyprlandAPI::createFunctionHook(PHANDLE, pCreateGroup, (void*)&newCreateGroup);
g_pDestroyGroupHook = HyprlandAPI::createFunctionHook(PHANDLE, pDestroyGroup, (void*)&newDestroyGroup);
// Initialize the hooks, from now on, the original functions will be overridden
g_pCreateGroupHook->hook();
g_pDestroyGroupHook->hook();
HyprlandAPI::addNotification(PHANDLE, "[dwindle-autogroup] Initialized successfully!", s_notifyColor, 5000);
return s_pluginDescription;
}

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src/plugin.cpp Normal file
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#include "plugin.hpp"
#include "globals.hpp"
#include <hyprland/src/Compositor.hpp>
#include <hyprland/src/layout/DwindleLayout.hpp>
#include <hyprland/src/managers/LayoutManager.hpp>
#include <hyprland/src/plugins/PluginAPI.hpp>
#include <hyprland/src/render/decorations/CHyprGroupBarDecoration.hpp>
/*! Recursively collect all dwindle child nodes for given root node
*
* \param[out] pDeque deque to store the found child nodes into
* \param[in] pNode Dwindle node which children should be collected
*/
void collectDwindleChildNodes(std::deque<SDwindleNodeData*>* pDeque, SDwindleNodeData* pNode)
{
if (pNode->isNode) {
collectDwindleChildNodes(pDeque, pNode->children[0]);
collectDwindleChildNodes(pDeque, pNode->children[1]);
}
else {
pDeque->emplace_back(pNode);
}
}
/*! Collect all windows that belong to the same group
*
* \param[out] pDeque deque to store the found group windows into
* \param[in] pWindow any window that belongs to a group (doesn't have to be the group head window)
*/
void collectGroupWindows(std::deque<CWindow*>* pDeque, CWindow* pWindow)
{
CWindow* curr = pWindow;
do {
const auto PLAST = curr;
pDeque->emplace_back(curr);
curr = curr->m_sGroupData.pNextWindow;
} while (curr != pWindow);
}
/*! Move given window into a group
*
* This is almost the same as CKeybindManager::moveWindowIntoGroup (dispatcher) function,
* but without making the new window a group head and focused.
*
* \param[in] pWindow Window to be inserted into a group
* \param[in] pGroupWindow Window that's a part of a group to insert the pWindow into
*/
void moveIntoGroup(CWindow* pWindow, CWindow* pGroupHeadWindow)
{
const auto P_LAYOUT = g_pLayoutManager->getCurrentLayout();
const auto* USE_CURR_POS = &g_pConfigManager->getConfigValuePtr("misc:group_insert_after_current")->intValue;
CWindow* pGroupWindow = *USE_CURR_POS ? pGroupHeadWindow : pGroupHeadWindow->getGroupTail();
// Remove the window from layout (will become a part of a group)
P_LAYOUT->onWindowRemoved(pWindow);
// Create a group bar decoration for the window we'll be inserting
// (if it's not already a group, in which case it should already have it)
if (!pWindow->m_sGroupData.pNextWindow)
pWindow->m_dWindowDecorations.emplace_back(std::make_unique<CHyprGroupBarDecoration>(pWindow));
pGroupWindow->insertWindowToGroup(pWindow);
pGroupHeadWindow->updateWindowDecos();
pWindow->setHidden(true);
g_pLayoutManager->getCurrentLayout()->recalculateWindow(pGroupHeadWindow);
}
/*! Check common pre-conditions for group creation/deletion and perform needed initializations
*
* \param[out] pDwindleLayout Pointer to dwindle layout instance
* \return Necessary pre-conditions succeded?
*/
bool handleGroupOperation(CHyprDwindleLayout** pDwindleLayout)
{
const auto P_LAYOUT = g_pLayoutManager->getCurrentLayout();
if (P_LAYOUT->getLayoutName() != "dwindle") {
Debug::log(LOG, "[dwindle-autogroup] Ignoring non-dwindle layout");
return false;
}
*pDwindleLayout = dynamic_cast<CHyprDwindleLayout*>(P_LAYOUT);
return true;
}
void newCreateGroup(CWindow* self)
{
// Run the original function first, creating a "classical" group
// with just the currently selected window in it
((createGroupFuncT)g_pCreateGroupHook->m_pOriginal)(self);
// Only continue if the group really was created, as there are some pre-conditions to that.
if (!self->m_sGroupData.pNextWindow) {
Debug::log(LOG, "[dwindle-autogroup] Ignoring autogroup - invalid / non-group widnow");
return;
}
Debug::log(LOG, "[dwindle-autogroup] Triggered createGroup for {:x}", self);
// Obtain an instance of the dwindle layout, also run some general pre-conditions
// for the plugin, quit now if they're not met.
CHyprDwindleLayout* pDwindleLayout = nullptr;
if (!handleGroupOperation(&pDwindleLayout))
return;
Debug::log(LOG, "[dwindle-autogroup] Autogroupping dwindle child nodes");
// Collect all child dwindle nodes, we'll want to add all of those into a group
const auto P_DWINDLE_NODE = g_pNodeFromWindow(pDwindleLayout, self);
std::deque<SDwindleNodeData*> p_dDwindleNodes;
const auto P_SIBLING_NODE =
P_DWINDLE_NODE->pParent->children[0] == P_DWINDLE_NODE ? P_DWINDLE_NODE->pParent->children[1] : P_DWINDLE_NODE->pParent->children[0];
collectDwindleChildNodes(&p_dDwindleNodes, P_SIBLING_NODE);
// Stop if one of the dwindle child nodes is already in a group
for (auto& node : p_dDwindleNodes) {
auto curWindow = node->pWindow;
if (curWindow->m_sGroupData.pNextWindow) {
Debug::log(LOG, "[dwindle-autogroup] Ignoring autogroup for nested groups: window {:x} is group", curWindow);
return;
}
}
Debug::log(LOG, "[dwindle-autogroup] Found {} dwindle nodes to autogroup", p_dDwindleNodes.size());
// Add all of the dwindle child node widnows into the group
for (auto& node : p_dDwindleNodes) {
auto curWindow = node->pWindow;
Debug::log(LOG, "[dwindle-autogroup] Moving window {:x} into group", curWindow);
moveIntoGroup(curWindow, self);
}
Debug::log(LOG, "[dwindle-autogroup] Autogroup done, {} child nodes moved", p_dDwindleNodes.size());
}
void newDestroyGroup(CWindow* self)
{
// We can't use the original function here (other than for falling back)
// as it removes the group head and then creates the new windows on the
// layout. This often messes up the user layout of the windows.
//
// The goal of this function is to ungroup the windows such that they
// only continue as children from the dwindle binary tree node the group
// head was on.
// Only continue if the window isn't in a group
if (!self->m_sGroupData.pNextWindow) {
Debug::log(LOG, "[dwindle-autogroup] Ignoring ungroup - invalid / non-group widnow");
return;
}
Debug::log(LOG, "[dwindle-autogroup] Triggered destroyGroup for {:x}", self);
// Obtain an instance of the dwindle layout, also run some general pre-conditions
// for the plugin, fall back now if they're not met.
CHyprDwindleLayout* pDwindleLayout = nullptr;
if (!handleGroupOperation(&pDwindleLayout)) {
((createGroupFuncT)g_pDestroyGroupHook->m_pOriginal)(self);
return;
}
// TODO: Add proper ungroupping logic instead of this fallback
// (Tracked by github issue #1)
Debug::log(LOG, "[dwindle-autogroup] Falling back to original ungroupping behavior (temporary)");
((createGroupFuncT)g_pDestroyGroupHook->m_pOriginal)(self);
}