mirror of
https://github.com/scorpion-26/gBar.git
synced 2024-11-22 19:22:50 +00:00
aee06ab49d
I think not unsubscribing is the root cause of the mysterious calling of ItemPropertyChanged from random names/object paths.
627 lines
23 KiB
C++
627 lines
23 KiB
C++
#include "SNI.h"
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#include "Log.h"
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#include "Widget.h"
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#include "Config.h"
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#include "Common.h"
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#ifdef WITH_SNI
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#include <sni-watcher.h>
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#include <sni-item.h>
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#include <gio/gio.h>
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#include <libdbusmenu-gtk/menu.h>
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#define STB_IMAGE_IMPLEMENTATION
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#include <stb/stb_image.h>
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#include <fstream>
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#include <cstdio>
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#include <unordered_set>
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namespace SNI
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{
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sniWatcher* watcherSkeleton;
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guint watcherID;
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GDBusConnection* dbusConnection = nullptr;
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guint hostID;
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struct Item
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{
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std::string name;
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std::string object;
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size_t w = 0;
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size_t h = 0;
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uint8_t* iconData = nullptr;
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std::string tooltip = "";
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std::string menuObjectPath = "";
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EventBox* gtkEvent = nullptr;
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int watcherID = -1;
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int propertyChangeWatcherID = -1;
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};
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std::vector<Item> items;
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std::unordered_map<std::string, Item> clientsToQuery;
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std::unordered_set<std::string> reloadedNames;
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// Gtk stuff, TODO: Allow more than one instance
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// Simply removing the gtk_drawing_areas doesn't trigger proper redrawing
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// HACK: Make an outer permanent and an inner box, which will be deleted and readded
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Widget* parentBox;
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Widget* iconBox;
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static Item CreateItem(std::string&& name, std::string&& object)
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{
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Item item{};
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item.name = name;
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item.object = object;
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auto getProperty = [&](const char* prop) -> GVariant*
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{
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GError* err = nullptr;
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GVariant* params[2];
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params[0] = g_variant_new_string("org.kde.StatusNotifierItem");
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params[1] = g_variant_new_string(prop);
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GVariant* param = g_variant_new_tuple(params, 2);
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GVariant* res = g_dbus_connection_call_sync(dbusConnection, name.c_str(), object.c_str(), "org.freedesktop.DBus.Properties", "Get", param,
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G_VARIANT_TYPE("(v)"), G_DBUS_CALL_FLAGS_NONE, -1, nullptr, &err);
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if (err)
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{
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g_error_free(err);
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return nullptr;
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}
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// There's probably a better method than to use 3 variants
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// g_variant_unref(params[0]);
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// g_variant_unref(params[1]);
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// g_variant_unref(param);
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return res;
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};
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bool hasPixmap = false;
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GVariant* iconPixmap = getProperty("IconPixmap");
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if (iconPixmap)
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{
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// Only get first item
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GVariant* arr = nullptr;
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g_variant_get(iconPixmap, "(v)", &arr);
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GVariantIter* arrIter = nullptr;
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g_variant_get(arr, "a(iiay)", &arrIter);
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if (g_variant_iter_n_children(arrIter) != 0)
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{
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int width;
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int height;
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GVariantIter* data = nullptr;
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g_variant_iter_next(arrIter, "(iiay)", &width, &height, &data);
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LOG("SNI: Width: " << width);
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LOG("SNI: Height: " << height);
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item.w = width;
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item.h = height;
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item.iconData = new uint8_t[width * height * 4];
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uint8_t px = 0;
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int i = 0;
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while (g_variant_iter_next(data, "y", &px))
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{
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item.iconData[i] = px;
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i++;
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}
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for (int i = 0; i < width * height; i++)
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{
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struct Px
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{
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// This should be bgra...
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// Since source is ARGB32 in network order(=big-endian)
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// and x86 Linux is little-endian, we *should* swap b and r...
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uint8_t a, r, g, b;
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};
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Px& pixel = ((Px*)item.iconData)[i];
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// Swap to create rgba
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pixel = {pixel.r, pixel.g, pixel.b, pixel.a};
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}
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g_variant_iter_free(data);
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hasPixmap = true;
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}
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g_variant_iter_free(arrIter);
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g_variant_unref(arr);
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g_variant_unref(iconPixmap);
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}
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// Pixmap querying has failed, try IconName
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if (!hasPixmap)
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{
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auto findIconWithoutPath = [](const char* iconName) -> std::string
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{
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std::string iconPath;
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const char* dataDirs = getenv("XDG_DATA_DIRS");
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// Nothing defined, look in $XDG_DATA_DIRS/icons
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// network-manager-applet does this e.g.
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if (dataDirs)
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{
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for (auto& dataDir : Utils::Split(dataDirs, ':'))
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{
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LOG("SNI: Searching icon " << iconName << " in " << dataDir << "/icons");
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std::string path = Utils::FindFileWithName(dataDir + "/icons", iconName, ".png");
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if (path != "")
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{
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iconPath = path;
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break;
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}
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}
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}
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if (iconPath == "")
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{
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// Fallback to /usr/share/icons
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LOG("SNI: Searching icon " << iconName << " in "
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<< "/usr/share/icons");
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iconPath = Utils::FindFileWithName("/usr/share/icons", iconName, ".png");
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}
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return iconPath;
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};
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// Get icon theme path
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GVariant* themePathVariant = getProperty("IconThemePath"); // Not defined by freedesktop, I think ayatana does this...
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GVariant* iconNameVariant = getProperty("IconName");
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std::string iconPath;
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if (themePathVariant && iconNameVariant)
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{
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// Why GLib?
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GVariant* themePathStr = nullptr;
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g_variant_get(themePathVariant, "(v)", &themePathStr);
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GVariant* iconNameStr = nullptr;
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g_variant_get(iconNameVariant, "(v)", &iconNameStr);
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const char* themePath = g_variant_get_string(themePathStr, nullptr);
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const char* iconName = g_variant_get_string(iconNameStr, nullptr);
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if (strlen(themePath) == 0)
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{
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iconPath = findIconWithoutPath(iconName);
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}
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else
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{
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iconPath = std::string(themePath) + "/" + iconName + ".png"; // TODO: Find out if this is always png
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}
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g_variant_unref(themePathVariant);
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g_variant_unref(themePathStr);
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g_variant_unref(iconNameVariant);
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g_variant_unref(iconNameStr);
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}
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else if (iconNameVariant)
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{
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GVariant* iconNameStr = nullptr;
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g_variant_get(iconNameVariant, "(v)", &iconNameStr);
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const char* iconName = g_variant_get_string(iconNameStr, nullptr);
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iconPath = findIconWithoutPath(iconName);
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if (iconPath == "")
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{
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// Try our luck with just using iconName, maybe its just an absolute path
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iconPath = iconName;
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}
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g_variant_unref(iconNameVariant);
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g_variant_unref(iconNameStr);
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}
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else
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{
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LOG("SNI: Unknown path!");
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return item;
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}
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if (iconPath == "")
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{
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LOG("SNI: Cannot find icon path for " << name);
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return item;
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}
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int width, height, channels;
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stbi_uc* pixels = stbi_load(iconPath.c_str(), &width, &height, &channels, STBI_rgb_alpha);
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if (!pixels)
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{
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LOG("SNI: Cannot open " << iconPath);
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return item;
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}
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item.w = width;
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item.h = height;
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item.iconData = new uint8_t[width * height * 4];
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// Already rgba32
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memcpy(item.iconData, pixels, width * height * 4);
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stbi_image_free(pixels);
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}
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// Query tooltip(Steam e.g. doesn't have one)
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GVariant* tooltip = getProperty("ToolTip");
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if (tooltip)
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{
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GVariant* tooltipVar;
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g_variant_get_child(tooltip, 0, "v", &tooltipVar);
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const gchar* title = nullptr;
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if (g_variant_is_container(tooltipVar) && g_variant_n_children(tooltipVar) >= 4)
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{
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// According to spec, ToolTip is of type (sa(iiab)ss) => 4 children
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// Most icons only set the "title" component (e.g. Discord, KeePassXC, ...)
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g_variant_get_child(tooltipVar, 2, "s", &title);
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}
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else
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{
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// TeamViewer only exposes a string, which is not according to spec!
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title = g_variant_get_string(tooltipVar, nullptr);
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}
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if (title != nullptr)
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{
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item.tooltip = title;
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}
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else
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{
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LOG("SNI: Error querying tooltip");
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}
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LOG("SNI: Title: " << item.tooltip);
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g_variant_unref(tooltip);
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g_variant_unref(tooltipVar);
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}
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// Query menu
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GVariant* menuPath = getProperty("Menu");
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if (menuPath)
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{
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GVariant* menuVariant;
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g_variant_get_child(menuPath, 0, "v", &menuVariant);
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const char* objectPath;
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g_variant_get(menuVariant, "o", &objectPath);
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LOG("SNI: Menu object path: " << objectPath);
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item.menuObjectPath = objectPath;
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g_variant_unref(menuVariant);
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g_variant_unref(menuPath);
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}
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return item;
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}
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static void InvalidateWidget();
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static void DBusNameVanished(GDBusConnection*, const char* name, void*)
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{
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auto it = std::find_if(items.begin(), items.end(),
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[&](const Item& item)
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{
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return item.name == name;
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});
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if (it != items.end())
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{
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LOG("SNI: " << name << " vanished!");
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g_bus_unwatch_name(it->watcherID);
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g_dbus_connection_signal_unsubscribe(dbusConnection, it->propertyChangeWatcherID);
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items.erase(it);
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InvalidateWidget();
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return;
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}
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auto toRegisterIt = clientsToQuery.find(name);
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if (toRegisterIt != clientsToQuery.end())
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{
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clientsToQuery.erase(toRegisterIt);
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}
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LOG("SNI: Cannot remove unregistered bus name " << name);
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return;
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}
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static void ItemPropertyChanged(GDBusConnection*, const char* senderName, const char* object, const char*, const char*, GVariant*, void* name)
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{
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// I think the multiple calling of this callback is a symptom of not unsubscribing the ItemPropertyChanged callback. Since this is now done, I
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// think the reloadedNames and object path checking is no longer needed. Since it doesn't do any harm (except being a little bit pointless)
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// I'll leave the checks here for now.
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// TODO: Investigate whether it is now actually fixed
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if (reloadedNames.insert(senderName).second == false)
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{
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// senderName has already requested a change, ignore
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LOG("SNI: " << senderName << " already signaled property change");
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return;
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}
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std::string nameStr = (const char*)name;
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LOG("SNI: Reloading " << (const char*)name << " " << object << " (Sender: " << senderName << ")");
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// We can't trust the object path given to us, since ItemPropertyChanged is called multiple times with the same name, but with different
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// object paths.
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auto it = std::find_if(items.begin(), items.end(),
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[&](const Item& item)
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{
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return item.name == nameStr;
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});
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std::string itemObjectPath;
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if (it != items.end())
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{
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itemObjectPath = it->object;
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}
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else
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{
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// Item not already registered, fallback to provided name and hope the object path provided is accurate
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LOG("SNI: Couldn't find name for actual object path!");
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itemObjectPath = object;
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}
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// We don't care about *what* changed, just remove and reload
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LOG("SNI: Actual object path: " << itemObjectPath)
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if (it != items.end())
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{
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g_bus_unwatch_name(it->watcherID);
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g_dbus_connection_signal_unsubscribe(dbusConnection, it->propertyChangeWatcherID);
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items.erase(it);
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}
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else
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{
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LOG("SNI: Coudn't remove item " << nameStr << " when reloading");
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}
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clientsToQuery[nameStr] = {nameStr, itemObjectPath};
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}
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static TimerResult UpdateWidgets(Box&)
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{
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// Flush connection, so we hopefully don't deadlock with any client
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GError* err = nullptr;
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g_dbus_connection_flush_sync(dbusConnection, nullptr, &err);
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if (err)
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{
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LOG("SNI: g_dbus_connection_call_sync failed: " << err->message);
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g_error_free(err);
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}
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if (RuntimeConfig::Get().hasSNI == false || Config::Get().enableSNI == false)
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{
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// Don't bother
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return TimerResult::Delete;
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}
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for (auto& [name, client] : clientsToQuery)
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{
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LOG("SNI: Creating Item " << client.name << " " << client.object);
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Item item = CreateItem(std::move(client.name), std::move(client.object));
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// Add handler for removing
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item.watcherID = g_bus_watch_name_on_connection(dbusConnection, item.name.c_str(), G_BUS_NAME_WATCHER_FLAGS_NONE, nullptr,
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DBusNameVanished, nullptr, nullptr);
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// Add handler for icon change
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char* staticBuf = new char[item.name.size() + 1]{0x0};
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memcpy(staticBuf, item.name.c_str(), item.name.size());
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LOG("SNI: Allocating static name buffer for " << item.name);
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item.propertyChangeWatcherID = g_dbus_connection_signal_subscribe(
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dbusConnection, item.name.c_str(), "org.kde.StatusNotifierItem", nullptr, nullptr, nullptr, G_DBUS_SIGNAL_FLAGS_NONE,
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ItemPropertyChanged, staticBuf,
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+[](void* ptr)
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{
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LOG("SNI: Delete static name buffer for " << (char*)ptr);
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delete[] (char*)ptr;
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});
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items.push_back(std::move(item));
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}
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if (clientsToQuery.size() > 0)
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{
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InvalidateWidget();
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}
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clientsToQuery.clear();
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return TimerResult::Ok;
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}
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// SNI implements the GTK-Thingies itself internally
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static void InvalidateWidget()
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{
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LOG("SNI: Clearing old children");
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parentBox->RemoveChild(iconBox);
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// Allow further updates from the icon
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reloadedNames.clear();
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auto container = Widget::Create<Box>();
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container->SetSpacing({4, false});
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container->SetOrientation(Utils::GetOrientation());
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Utils::SetTransform(*container, {-1, true, Alignment::Fill, 0, 8});
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iconBox = container.get();
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// Sort items, so they don't jump around randomly
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std::sort(items.begin(), items.end(),
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[](const Item& a, const Item& b)
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{
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return a.name < b.name;
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});
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for (auto& item : items)
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{
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if (item.iconData)
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{
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auto eventBox = Widget::Create<EventBox>();
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item.gtkEvent = eventBox.get();
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eventBox->SetOnCreate(
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[&](Widget& w)
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{
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auto clickFn = [](GtkWidget*, GdkEventButton* event, void* data) -> gboolean
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{
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if (event->button == 1)
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{
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Item* item = (Item*)data;
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GtkMenu* menu = (GtkMenu*)dbusmenu_gtkmenu_new(item->name.data(), item->menuObjectPath.data());
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LOG(menu);
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gtk_menu_attach_to_widget(menu, item->gtkEvent->Get(), nullptr);
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gtk_menu_popup_at_pointer(menu, (GdkEvent*)event);
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LOG(item->menuObjectPath << " click");
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}
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return GDK_EVENT_STOP;
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};
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g_signal_connect(w.Get(), "button-release-event", G_CALLBACK(+clickFn), &item);
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});
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LOG("SNI: Add " << item.name << " to widget");
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auto texture = Widget::Create<Texture>();
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bool wasExplicitOverride = false;
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int size = 24;
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for (auto& [filter, iconSize] : Config::Get().sniIconSizes)
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{
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if (item.tooltip.find(filter) != std::string::npos)
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{
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wasExplicitOverride = true;
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size = iconSize;
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}
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else if (filter == "*" && !wasExplicitOverride)
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{
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size = iconSize;
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}
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}
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wasExplicitOverride = false;
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for (auto& [filter, padding] : Config::Get().sniPaddingTop)
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{
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if (item.tooltip.find(filter) != std::string::npos)
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{
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wasExplicitOverride = true;
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texture->AddPaddingTop(padding);
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}
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else if (filter == "*" && !wasExplicitOverride)
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{
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texture->AddPaddingTop(padding);
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}
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}
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Utils::SetTransform(*texture, {size, true, Alignment::Fill}, {size, true, Alignment::Fill});
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texture->SetBuf(item.w, item.h, item.iconData);
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texture->SetTooltip(item.tooltip);
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texture->SetAngle(Utils::GetAngle() == 270 ? 90 : 0);
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eventBox->AddChild(std::move(texture));
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iconBox->AddChild(std::move(eventBox));
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}
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}
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parentBox->AddChild(std::move(container));
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}
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void WidgetSNI(Widget& parent)
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{
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if (RuntimeConfig::Get().hasSNI == false || Config::Get().enableSNI == false)
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{
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return;
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}
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// Add parent box
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auto box = Widget::Create<Box>();
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auto container = Widget::Create<Box>();
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container->AddTimer<Box>(UpdateWidgets, 1000, TimerDispatchBehaviour::LateDispatch);
|
|
iconBox = container.get();
|
|
parentBox = box.get();
|
|
InvalidateWidget();
|
|
box->AddChild(std::move(container));
|
|
parent.AddChild(std::move(box));
|
|
}
|
|
|
|
// Methods
|
|
static bool RegisterItem(sniWatcher* watcher, GDBusMethodInvocation* invocation, const char* service)
|
|
{
|
|
std::string name;
|
|
std::string object;
|
|
if (strncmp(service, "/", 1) == 0)
|
|
{
|
|
// service is object (used by e.g. ayatana -> steam, discord)
|
|
object = service;
|
|
name = g_dbus_method_invocation_get_sender(invocation);
|
|
}
|
|
else
|
|
{
|
|
// service is bus name (used by e.g. Telegram)
|
|
name = service;
|
|
object = "/StatusNotifierItem";
|
|
}
|
|
auto it = std::find_if(items.begin(), items.end(),
|
|
[&](const Item& item)
|
|
{
|
|
return item.name == name && item.object == object;
|
|
});
|
|
if (it != items.end())
|
|
{
|
|
LOG("Rejecting " << name << " " << object);
|
|
return false;
|
|
}
|
|
sni_watcher_emit_status_notifier_item_registered(watcher, service);
|
|
sni_watcher_complete_register_status_notifier_item(watcher, invocation);
|
|
LOG("SNI: Registered Item " << name << " " << object);
|
|
clientsToQuery[name] = {name, std::move(object)};
|
|
return true;
|
|
}
|
|
|
|
static void RegisterHost(sniWatcher*, GDBusMethodInvocation*, const char*)
|
|
{
|
|
LOG("TODO: Implement RegisterHost!");
|
|
}
|
|
|
|
// Signals
|
|
static void ItemRegistered(sniWatcher*, const char*, void*)
|
|
{
|
|
// Don't care, since watcher and host will always be from gBar (at least for now)
|
|
}
|
|
static void ItemUnregistered(sniWatcher*, const char*, void*)
|
|
{
|
|
// Don't care, since watcher and host will always be from gBar (at least for now)
|
|
}
|
|
|
|
void Init()
|
|
{
|
|
if (RuntimeConfig::Get().hasSNI == false || Config::Get().enableSNI == false)
|
|
{
|
|
return;
|
|
}
|
|
|
|
auto busAcquired = [](GDBusConnection* connection, const char*, void*)
|
|
{
|
|
GError* err = nullptr;
|
|
g_dbus_interface_skeleton_export((GDBusInterfaceSkeleton*)watcherSkeleton, connection, "/StatusNotifierWatcher", &err);
|
|
if (err)
|
|
{
|
|
LOG("SNI: Failed to connect to dbus! Disabling SNI. Error: " << err->message);
|
|
RuntimeConfig::Get().hasSNI = false;
|
|
g_error_free(err);
|
|
return;
|
|
}
|
|
dbusConnection = connection;
|
|
|
|
// Connect methods and signals
|
|
g_signal_connect(watcherSkeleton, "handle-register-status-notifier-item", G_CALLBACK(RegisterItem), nullptr);
|
|
g_signal_connect(watcherSkeleton, "handle-register-status-notifier-host", G_CALLBACK(RegisterHost), nullptr);
|
|
|
|
g_signal_connect(watcherSkeleton, "status-notifier-item-registered", G_CALLBACK(ItemRegistered), nullptr);
|
|
g_signal_connect(watcherSkeleton, "status-notifier-item-unregistered", G_CALLBACK(ItemUnregistered), nullptr);
|
|
|
|
// Host is always available
|
|
sni_watcher_set_is_status_notifier_host_registered(watcherSkeleton, true);
|
|
};
|
|
auto emptyCallback = [](GDBusConnection*, const char*, void*) {};
|
|
auto lostName = [](GDBusConnection*, const char*, void*)
|
|
{
|
|
LOG("SNI: Lost Name! Disabling SNI!");
|
|
RuntimeConfig::Get().hasSNI = false;
|
|
};
|
|
auto flags = G_BUS_NAME_OWNER_FLAGS_REPLACE;
|
|
g_bus_own_name(G_BUS_TYPE_SESSION, "org.kde.StatusNotifierWatcher", (GBusNameOwnerFlags)flags, +busAcquired, +emptyCallback, +lostName,
|
|
nullptr, nullptr);
|
|
watcherSkeleton = sni_watcher_skeleton_new();
|
|
|
|
std::string hostName = "org.kde.StatusNotifierHost-" + std::to_string(getpid());
|
|
g_bus_own_name(G_BUS_TYPE_SESSION, hostName.c_str(), (GBusNameOwnerFlags)flags, +emptyCallback, +emptyCallback, +emptyCallback, nullptr,
|
|
nullptr);
|
|
|
|
// Host is always available
|
|
sni_watcher_set_is_status_notifier_host_registered(watcherSkeleton, true);
|
|
sni_watcher_emit_status_notifier_host_registered(watcherSkeleton);
|
|
}
|
|
|
|
void Shutdown() {}
|
|
}
|
|
#endif
|