mirror of https://github.com/electron/electron
129 lines
4.3 KiB
C++
129 lines
4.3 KiB
C++
// Copyright 2013 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "shell/browser/linux/unity_service.h"
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#include <dlfcn.h>
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#include <gtk/gtk.h>
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#include <string>
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// Unity data typedefs.
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typedef struct _UnityInspector UnityInspector;
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typedef UnityInspector* (*unity_inspector_get_default_func)();
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typedef gboolean (*unity_inspector_get_unity_running_func)(
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UnityInspector* self);
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typedef struct _UnityLauncherEntry UnityLauncherEntry;
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typedef UnityLauncherEntry* (*unity_launcher_entry_get_for_desktop_id_func)(
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const gchar* desktop_id);
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typedef void (*unity_launcher_entry_set_count_func)(UnityLauncherEntry* self,
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gint64 value);
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typedef void (*unity_launcher_entry_set_count_visible_func)(
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UnityLauncherEntry* self,
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gboolean value);
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typedef void (*unity_launcher_entry_set_progress_func)(UnityLauncherEntry* self,
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gdouble value);
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typedef void (*unity_launcher_entry_set_progress_visible_func)(
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UnityLauncherEntry* self,
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gboolean value);
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namespace {
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bool attempted_load = false;
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// Unity has a singleton object that we can ask whether the unity is running.
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UnityInspector* inspector = nullptr;
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// A link to the desktop entry in the panel.
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UnityLauncherEntry* chrome_entry = nullptr;
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// Retrieved functions from libunity.
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unity_inspector_get_unity_running_func get_unity_running = nullptr;
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unity_launcher_entry_set_count_func entry_set_count = nullptr;
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unity_launcher_entry_set_count_visible_func entry_set_count_visible = nullptr;
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unity_launcher_entry_set_progress_func entry_set_progress = nullptr;
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unity_launcher_entry_set_progress_visible_func entry_set_progress_visible =
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nullptr;
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void EnsureLibUnityLoaded() {
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if (attempted_load)
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return;
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attempted_load = true;
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// Ubuntu still hasn't given us a nice libunity.so symlink.
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void* unity_lib = dlopen("libunity.so.4", RTLD_LAZY);
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if (!unity_lib)
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unity_lib = dlopen("libunity.so.6", RTLD_LAZY);
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if (!unity_lib)
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unity_lib = dlopen("libunity.so.9", RTLD_LAZY);
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if (!unity_lib)
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return;
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unity_inspector_get_default_func inspector_get_default =
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reinterpret_cast<unity_inspector_get_default_func>(
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dlsym(unity_lib, "unity_inspector_get_default"));
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if (inspector_get_default) {
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inspector = inspector_get_default();
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get_unity_running =
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reinterpret_cast<unity_inspector_get_unity_running_func>(
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dlsym(unity_lib, "unity_inspector_get_unity_running"));
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}
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unity_launcher_entry_get_for_desktop_id_func entry_get_for_desktop_id =
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reinterpret_cast<unity_launcher_entry_get_for_desktop_id_func>(
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dlsym(unity_lib, "unity_launcher_entry_get_for_desktop_id"));
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if (entry_get_for_desktop_id) {
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std::string desktop_id = getenv("CHROME_DESKTOP");
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chrome_entry = entry_get_for_desktop_id(desktop_id.c_str());
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entry_set_count = reinterpret_cast<unity_launcher_entry_set_count_func>(
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dlsym(unity_lib, "unity_launcher_entry_set_count"));
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entry_set_count_visible =
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reinterpret_cast<unity_launcher_entry_set_count_visible_func>(
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dlsym(unity_lib, "unity_launcher_entry_set_count_visible"));
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entry_set_progress =
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reinterpret_cast<unity_launcher_entry_set_progress_func>(
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dlsym(unity_lib, "unity_launcher_entry_set_progress"));
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entry_set_progress_visible =
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reinterpret_cast<unity_launcher_entry_set_progress_visible_func>(
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dlsym(unity_lib, "unity_launcher_entry_set_progress_visible"));
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}
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}
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} // namespace
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namespace unity {
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bool IsRunning() {
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EnsureLibUnityLoaded();
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if (inspector && get_unity_running)
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return get_unity_running(inspector);
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return false;
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}
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void SetDownloadCount(int count) {
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EnsureLibUnityLoaded();
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if (chrome_entry && entry_set_count && entry_set_count_visible) {
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entry_set_count(chrome_entry, count);
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entry_set_count_visible(chrome_entry, count != 0);
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}
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}
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void SetProgressFraction(float percentage) {
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EnsureLibUnityLoaded();
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if (chrome_entry && entry_set_progress && entry_set_progress_visible) {
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entry_set_progress(chrome_entry, percentage);
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entry_set_progress_visible(chrome_entry,
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percentage > 0.0 && percentage < 1.0);
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}
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}
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} // namespace unity
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