set(LINK_LIBCXX OFF CACHE BOOL "Link against LLVMs libc++")
-add_subdirectory(libwindowmanager)
add_subdirectory(scripts)
add_subdirectory(src)
-configure_file(windowmanager.pc.in windowmanager.pc @ONLY)
-INSTALL(FILES ${CMAKE_CURRENT_BINARY_DIR}/windowmanager.pc
- DESTINATION
- ${CMAKE_INSTALL_LIBDIR}/pkgconfig)
-
install(
FILES layers.json
DESTINATION ${CMAKE_INSTALL_SYSCONFDIR}/windowmanager
+++ /dev/null
-#
-# Copyright (c) 2017 TOYOTA MOTOR CORPORATION
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
-
-include(FindPkgConfig)
-
-pkg_check_modules(AFB REQUIRED libafbwsc)
-pkg_check_modules(SD REQUIRED libsystemd>=222)
-
-set(TARGET_LIBWM windowmanager)
-
-add_library(${TARGET_LIBWM} SHARED
- libwindowmanager.cpp
- libwindowmanager.h)
-
-target_include_directories(${TARGET_LIBWM}
- PRIVATE
- ${AFB_INCLUDE_DIRS}
- ${SD_INCLUDE_DIRS})
-
-target_link_libraries(${TARGET_LIBWM}
- PUBLIC
- -lpthread
- ${AFB_LIBRARIES}
- ${SD_LIBRARIES})
-
-target_compile_definitions(${TARGET_LIBWM}
- PRIVATE
- _GNU_SOURCE) # XXX should I define this here?!
-
-if(NOT ${CMAKE_BUILD_TYPE} STREQUAL "Release")
- target_compile_definitions(${TARGET_LIBWM}
- PRIVATE
- _GLIBCXX_DEBUG)
-endif()
-
-target_compile_options(${TARGET_LIBWM}
- PRIVATE
- -Wall -Wextra -Wno-unused-parameter -Wno-comment)
-
-set_target_properties(${TARGET_LIBWM}
- PROPERTIES
- # INTERPROCEDURAL_OPTIMIZATION ON
- CXX_EXTENSIONS OFF
- CXX_STANDARD 14
- CXX_STANDARD_REQUIRED ON)
-
-if (LINK_LIBCXX)
- set_target_properties(${TARGET_LIBWM}
- PROPERTIES
- LINK_FLAGS "-lc++")
-endif()
-
-if (NOT ${SANITIZER_MODE} STREQUAL "none" AND NOT ${SANITIZER_MODE} STREQUAL "")
- target_compile_options(${TARGET_LIBWM}
- PRIVATE
- -fsanitize=${SANITIZER_MODE} -g -fno-omit-frame-pointer)
- set_target_properties(${TARGET_LIBWM}
- PROPERTIES
- LINK_FLAGS "-fsanitize=${SANITIZER_MODE} -g")
-endif()
-
-install(
- TARGETS ${TARGET_LIBWM}
- DESTINATION ${CMAKE_INSTALL_LIBDIR}
- COMPONENT "runtime")
-
-install(
- FILES libwindowmanager.h
- DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}
- COMPONENT "development")
-
-add_subdirectory(doc)
+++ /dev/null
-install(
- FILES LibWindowmanager.md
- DESTINATION ${CMAKE_INSTALL_DOCDIR}
- COMPONENT "development")
+++ /dev/null
-all: LibWindowmanager.html
-
-LibWindowmanager.html: LibWindowmanager.txt
- asciidoc -a max-width=55em $^
-
-clean:
- rm -f LibWindowmanager.html
+++ /dev/null
-Introduction
-============
-
-The LibWindowmanager library provides a simple interface to manipulate and
-query the state of the window manager application framework binding.
-It is needs to be integrated and called from the client application.
-
-Intended audience
------------------
-
-This document is intended to be useful to application developers.
-
-Scope of this Document
-----------------------
-
-This document describes the singleton class interface to the *Window
-Manager* binding service.
-
-class LibWindowmanager
-===============
-
-This is the public interface of the class `LibWindowmanager`. Private members
-and methods are not reproduced as they will not affect usage of the
-class by client applications.
-
- class LibWindowmanager
- {
- public:
- static LibWindowmanager &instance();
-
- int init(int port, char const *token);
-
- // WM API
- int requestSurface(const char *label);
- int activateSurface(const char *label);
- int deactivateSurface(const char *label);
- int endDraw(const char *label);
-
- enum EventType {
- Event_Active,
- Event_Inactive,
- Event_Visible,
- Event_Invisible,
- Event_SyncDraw,
- Event_FlushDraw,
- };
-
- void set_event_handler(enum EventType et,
- std::function<void(char const *label)> f);
- };
-
-Errors
-------
-
-Methods returning an `int` signal successful operation when returning
-`0`. In case of an error, an error value is returned as a negative errno
-value. E.g. `-EINVAL` to signal that some input value was invalid.
-
-Additionally, logging of error messages is done on the standard error
-file descriptor to help debugging the issue.
-
-Labels
-------
-
-Surface labels are any valid strings. For `requestSurface()` these
-strings must match the *Window Manager* configuration in order to be
-allowed to be displayed on one layer or the other. For all other calls
-the label must match the exact name of a requested surface.
-
-Methods
--------
-
-### LibWindowmanager::init(port, token)
-
-Initialize the Binding communication.
-
-The `token` parameter is a string consisting of only alphanumeric characters.
-If these conditions are not met, the LibWindowmanager instance will not initialize,
-i.e. this call will return `-EINVAL`.
-
-The `port` parameter is the port the afb daemon is listening on, an
-invalid port will lead to a failure of the call and return `-EINVAL`.
-
-### LibWindowmanager::requestSurface(label)
-
-This method requests a surface with the label given from the *Window
-Manager*. It will return `0` for a successful surface request, and
-`-errno` on failure. Additionally, on the standard error, messages are
-logged to help debgging the issue.
-
-### LibWindowmanager::activateSurface(label)
-
-This method is mainly intended for *manager* applications that control
-other applications (think an application manager or the *HomeScreen*).
-It instructs the window manager to activate the surface with the given
-*label*.
-
-This method only is effective after the actual window or surface was
-created by the application.
-
-### LibWindowmanager::deactivateSurface(label)
-
-This method is mainly intended for *manager* applications that control
-other applications. It instructs the window manager to deactivate the
-surface associated with the given label. Note, that deactivating a
-surface also means to implicitly activate another (the last active or if
-not available *main surface* or *HomeScreen*.)
-
-This method only is effective after the actual window or surface was
-created by the application.
-
-### LibWindowmanager::endDraw(label)
-
-This function is called from a client application when it is done
-drawing its surface content.
-
-It is not crucial to make this call at every time a drawing is finished
-- it is mainly intended to allow the window manager to synchronize
-drawing in case of layout switch. The exact semantics are explained in
-the next [Events](#_events) Section.
-
-### LibWindowmanager::set\_event\_handler(et, func)
-
-This method needs to be used to register event handlers for the WM
-events described in the EventType enum. Only one hendler for each
-EventType is possible, i.e. if it is called multiple times with the same
-EventType the previous handler will be replaced.
-
-The `func` handler functions will receive the label of the surface this
-event is targeted at.
-
-See Section [Events](#_events) for mor detailed information about event
-delivery to client applications.
-
-Usage
------
-
-### Initialization of LibWindowmanager
-
-Before usage of the LibWindowmanager, the method `init()` must be
-called once, it will return `-errno` in case of en error and log
-diagnostic messages to stderr.
-
-### Request a surface
-
-When creating a surface with *Qt* - it is necessary to request a surface
-from the WM, internally this will communicate with the window manager
-binding. Only after `requestSurface()` was successful, a surface should
-be created.
-
-This is also true for *QML* aplications, where only after the
-`requestSurface()` should the load of the resource be done. The method
-returns `0` after the surface was requested successfully.
-
-#### Workings of requestSurface()
-
-`LibWindowmanager::requestSurface()` calls the AFB binding verb
-`requestsurface` of the `windowmanager` API. This API call will return a
-numeric ID to be used when creating the surface. This ID is never
-explicitly returned to the client application, instead, it is set in the
-application environment in order for *Qt* to then use it when creating
-the surface.
-
-With the current *Qt* implementation this means, that only one surface
-will be available to client applications, as subsequent windows will
-increment this numeric ID internally - which then will lead to IDs that
-cannot be known by the window manager as there is no direct
-communication from *Qt* to the WM.
-
-Events
-------
-
-Events are a way for the *Window Manager* to propagate information to
-client applications. It was vital for the project to implement a number
-of events, that mirror functionality that is already present in the
-wayland protocol.
-
-All events have the surface `label` as argument - a way to enable future
-multi-surface applications.
-
-As already stated above, this is currently not possible with the way
-*Qt* implements its surface ID setting.
-
-### Active and Inactive Events
-
-These events signal an application that it was activated or deactivated
-respectively. Usually this means it was switched visible - which means
-the surface will now be on the screen and therefor continue to render.
-
-### Visible and Invisible
-
-These events signal an application that it was switched to be visible or
-invisible respectively. These events too are handled implicitly through
-the wayland protocol by means of `wl_surface::enter` and
-`wl_surface::leave` events to the client.
-
-### SyncDraw and FlushDraw
-
-These events instruct applications that they should redraw their surface
-contents - again, this is handled implicitly by the wayland protocol.
-
-`SyncDraw` is sent to the application when it has to redraw its surface.
-
-`FlushDraw` is sent to the application when it should swap its buffers,
-that is *signal* the compositor that its surface contains new content.
-
-Example Use Case
-----------------
-
-In order to enable application to use the `WM` surface registration
-function the above described steps need to be implemented.
-
-As a minimal example the usage and initialization can look like the
-following.
-
- // Assume a program argc and argv.
- QGuiApplication app(argc, argv);
-
- auto &wm = LibWindowmanager::instance();
-
- // initialize the LibWindowmanager binding.
- if(wm.init(1234, "wmtest") != 0) {
- exit(EXIT_FAILURE);
- }
-
- // Request a surface label from the WM.
- char const *surface_label = "AppMediaPlayer";
- if (wm.requestSurface(surface_label) != 0) {
- exit(EXIT_FAILURE);
- }
-
- // Register an Active event handler.
- wm.set_event_handler(Event_Active,
- [](char const *label) {
- qDebug() << "Surface" << label << "got activated";
- });
-
- // Initialize application window
- // ...
-
- // request to activate the surface, this should usually
- // not be done by the client application.
- if (wm.activateSurface(surface_label) != 0) {
- fprintf(stderr, "Could not activate the surface\n");
- exit(EXIT_FAILURE);
- }
-
- // e.g. exec the qt application
- app.exec();
-
+++ /dev/null
-= LibWindowmanager Library User Guide
-:doctype: book
-:toc:
-:icons:
-:data-uri:
-:lang: en
-:encoding: utf-8
-
-== Introduction
-The LibWindowmanager library provides a simple interface to manipulate and
-query the state of the window manager application framework binding.
-It is needs to be integrated and called from the client application.
-
-=== Intended audience
-This document is intended to be useful to application developers.
-
-=== Scope of this Document
-This document describes the singleton class interface to the _Window
-Manager_ binding service.
-
-== class LibWindowmanager
-This is the public interface of the class `LibWindowmanager`. Private members
-and methods are not reproduced as they will not affect usage of the
-class by client applications.
-
----------------------------
-class LibWindowmanager
-{
-public:
- static LibWindowmanager &instance();
-
- int init(int port, char const *token);
-
- // WM API
- int requestSurface(const char *label);
- int activateSurface(const char *label);
- int deactivateSurface(const char *label);
- int endDraw(const char *label);
-
- enum EventType {
- Event_Active,
- Event_Inactive,
- Event_Visible,
- Event_Invisible,
- Event_SyncDraw,
- Event_FlushDraw,
- };
-
- void set_event_handler(enum EventType et,
- std::function<void(char const *label)> f);
-};
----------------------------
-
-=== Errors
-Methods returning an `int` signal successful operation when returning
-`0`. In case of an error, an error value is returned as a negative errno
-value. E.g. `-EINVAL` to signal that some input value was invalid.
-
-Additionally, logging of error messages is done on the standard error
-file descriptor to help debugging the issue.
-
-=== Labels
-Surface labels are any valid strings. For `requestSurface()` these strings
-must match the _Window Manager_ configuration in order to be allowed to
-be displayed on one layer or the other. For all other calls the label
-must match the exact name of a requested surface.
-
-=== Methods
-
-==== LibWindowmanager::init(port, token)
-Initialize the Binding communication.
-
-The `token` parameter is a string consisting of only alphanumeric characters.
-If these conditions are not met, the LibWindowmanager instance will not initialize,
-i.e. this call will return `-EINVAL`.
-
-The `port` parameter is the port the afb daemon is listening on,
-an invalid port will lead to a failure of the call and return `-EINVAL`.
-
-==== LibWindowmanager::requestSurface(label)
-This method requests a surface with the label given from the _Window
-Manager_. It will return `0` for a successful surface request, and
-`-errno` on failure. Additionally, on the standard error, messages are
-logged to help debgging the issue.
-
-==== LibWindowmanager::activateSurface(label)
-This method is mainly intended for _manager_ applications that control
-other applications (think an application manager or the _HomeScreen_). It
-instructs the window manager to activate the surface with the given
-_label_.
-
-This method only is effective after the actual window or surface was
-created by the application.
-
-==== LibWindowmanager::deactivateSurface(label)
-This method is mainly intended for _manager_ applications that control
-other applications. It instructs the window manager to deactivate the
-surface associated with the given label. Note, that deactivating a
-surface also means to implicitly activate another (the last active or
-if not available _main surface_ or _HomeScreen_.)
-
-This method only is effective after the actual window or surface was
-created by the application.
-
-==== LibWindowmanager::endDraw(label)
-This function is called from a client application when it is done
-drawing its surface content.
-
-It is not crucial to make this call at every time a drawing is finished -
-it is mainly intended to allow the window manager to synchronize drawing
-in case of layout switch. The exact semantics are explained in the next
-<<_events,Events>> Section.
-
-==== LibWindowmanager::set_event_handler(et, func)
-This method needs to be used to register event handlers for the WM
-events described in the EventType enum. Only one hendler for each
-EventType is possible, i.e. if it is called multiple times with the same
-EventType the previous handler will be replaced.
-
-The `func` handler functions will receive the label of the surface this
-event is targeted at.
-
-See Section <<_events,Events>> for mor detailed information about event
-delivery to client applications.
-
-=== Usage
-
-==== Initialization of LibWindowmanager
-Before usage of the LibWindowmanager, the method `init()` must be
-called once, it will return `-errno` in case of en error and log diagnostic
-messages to stderr.
-
-==== Request a surface
-When creating a surface with _Qt_ - it is necessary to request a surface
-from the WM, internally this will communicate with the window manager
-binding. Only after `requestSurface()` was successful, a surface should
-be created.
-
-This is also true for _QML_ aplications, where only after the
-`requestSurface()` should the load of the resource be done. The method
-returns `0` after the surface was requested successfully.
-
-===== Workings of requestSurface()
-`LibWindowmanager::requestSurface()` calls the AFB binding verb
-`requestsurface` of the `windowmanager` API. This API call will return a
-numeric ID to be used when creating the surface. This ID is never
-explicitly returned to the client application, instead, it is set in the
-application environment in order for _Qt_ to then use it when creating the
-surface.
-
-.Remarks
-********************************
-With the current _Qt_ implementation this means, that only one surface
-will be available to client applications, as subsequent windows will
-increment this numeric ID internally - which then will lead to IDs that
-cannot be known by the window manager as there is no direct
-communication from _Qt_ to the WM.
-********************************
-
-=== Events
-Events are a way for the _Window Manager_ to propagate information to
-client applications. It was vital for the project to implement a number
-of events, that mirror functionality that is already present in the
-wayland protocol.
-
-All events have the surface `label` as argument - a way to enable future
-multi-surface applications.
-
-.Remarks
-**************************
-As already stated above, this is currently not possible with the way
-_Qt_ implements its surface ID setting.
-**************************
-
-==== Active and Inactive Events
-These events signal an application that it was activated or deactivated
-respectively. Usually this means it was switched visible - which means
-the surface will now be on the screen and therefor continue to render.
-
-==== Visible and Invisible
-These events signal an application that it was switched to be visible or
-invisible respectively. These events too are handled implicitly through
-the wayland protocol by means of `wl_surface::enter` and
-`wl_surface::leave` events to the client.
-
-==== SyncDraw and FlushDraw
-These events instruct applications that they should redraw their surface
-contents - again, this is handled implicitly by the wayland protocol.
-
-`SyncDraw` is sent to the application when it has to redraw its surface.
-
-`FlushDraw` is sent to the application when it should swap its buffers,
-that is _signal_ the compositor that its surface contains new content.
-
-=== Example Use Case
-In order to enable application to use the `WM` surface registration
-function the above described steps need to be implemented.
-
-As a minimal example the usage and initialization can look like the
-following.
-
------------------------
- // Assume a program argc and argv.
- QGuiApplication app(argc, argv);
-
- auto &wm = LibWindowmanager::instance();
-
- // initialize the LibWindowmanager binding.
- if(wm.init(1234, "wmtest") != 0) {
- exit(EXIT_FAILURE);
- }
-
- // Request a surface label from the WM.
- char const *surface_label = "AppMediaPlayer";
- if (wm.requestSurface(surface_label) != 0) {
- exit(EXIT_FAILURE);
- }
-
- // Register an Active event handler.
- wm.set_event_handler(Event_Active,
- [](char const *label) {
- qDebug() << "Surface" << label << "got activated";
- });
-
- // Initialize application window
- // ...
-
- // request to activate the surface, this should usually
- // not be done by the client application.
- if (wm.activateSurface(surface_label) != 0) {
- fprintf(stderr, "Could not activate the surface\n");
- exit(EXIT_FAILURE);
- }
-
- // e.g. exec the qt application
- app.exec();
-
-// vim:set ft=asciidoc tw=72:
+++ /dev/null
-/*
- * Copyright (c) 2017 TOYOTA MOTOR CORPORATION
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include "libwindowmanager.h"
-
-#include <cassert>
-#include <cctype>
-#include <cerrno>
-#include <cstdio>
-#include <cstdlib>
-#include <cstring>
-
-#include <atomic>
-#include <map>
-#include <mutex>
-#include <set>
-#include <queue>
-
-#include <unistd.h>
-
-#include <systemd/sd-event.h>
-
-#include <json-c/json.h>
-#include <pthread.h>
-
-extern "C" {
-#include <afb/afb-ws-client.h>
-#include <afb/afb-wsj1.h>
-}
-
-#define UNUSED(x) (void)(x)
-
-// _ ___ _
-// ___| | __ _ ___ ___ |_ _|_ __ ___ _ __ | |
-// / __| |/ _` / __/ __| | || '_ ` _ \| '_ \| |
-// | (__| | (_| \__ \__ \ | || | | | | | |_) | |
-// \___|_|\__,_|___/___/ |___|_| |_| |_| .__/|_|
-// |_|
-class LibWindowmanager::Impl {
- friend class LibWindowmanager;
-
- // This is the LibWindowmanager interface impl
- int init(int port, char const *token);
-
- // WM API
- int requestSurface(const char *label);
- int activateSurface(const char *label);
- int deactivateSurface(const char *label);
- int endDraw(const char *label);
-
- void set_event_handler(enum EventType et, handler_fun func);
-
- Impl();
- ~Impl();
-
- struct afb_wsj1 *wsj1;
- struct sd_event *loop;
-
- std::set<std::string> labels;
- std::map<EventType, handler_fun> handlers;
- std::queue<std::pair<handler_fun, std::string>> handler_queue;
-
- int api_call(const char *verb, json_object *object,
- const std::function<void(bool, json_object *)> &onReply);
-
-public:
- void event(char const *et, char const *label);
-private:
- int runEventLoop();
-};
-
-namespace {
-
-constexpr const int token_maxlen = 20;
-constexpr const char *const wmAPI = "windowmanager";
-
-#define CONCAT_(X, Y) X##Y
-#define CONCAT(X, Y) CONCAT_(X, Y)
-
-#ifndef SCOPE_TRACING
-#define TRACE()
-#define TRACEN(N)
-#else
-#define TRACE() \
- ScopeTrace __attribute__((unused)) CONCAT(trace_scope_, __LINE__)(__func__)
-#define TRACEN(N) \
- ScopeTrace __attribute__((unused)) CONCAT(named_trace_scope_, __LINE__)(#N)
-
-struct ScopeTrace {
- thread_local static int indent;
- char const *f{};
- explicit ScopeTrace(char const *func) : f(func) {
- fprintf(stderr, "%*s%s -->\n", 2 * indent++, "", this->f);
- }
- ~ScopeTrace() { fprintf(stderr, "%*s%s <--\n", 2 * --indent, "", this->f); }
-};
-thread_local int ScopeTrace::indent = 0;
-#endif
-
-/* called when wsj1 receives a method invocation */
-void onCall(void *closure, const char *api, const char *verb,
- struct afb_wsj1_msg *msg) {
- TRACE();
- UNUSED(closure);
- UNUSED(verb);
- UNUSED(api);
- UNUSED(msg);
-}
-
-/* called when wsj1 receives an event */
-void onEvent(void *closure, const char *event, afb_wsj1_msg *msg) {
- TRACE();
-
- // check API name in event
- if (0 != strncmp(wmAPI, event, strlen(wmAPI))) {
- return;
- }
-
- reinterpret_cast<LibWindowmanager::Impl *>(closure)->event(
- event, json_object_get_string(
- json_object_object_get(afb_wsj1_msg_object_j(msg), "data")));
-}
-
-/* called when wsj1 hangsup */
-void onHangup(void *closure, afb_wsj1 *wsj1) {
- TRACE();
- UNUSED(closure);
- UNUSED(wsj1);
- fputs("Hangup, the WindowManager vanished\n", stderr);
- exit(1); // XXX: there should be something ... *better* here.
-}
-
-constexpr struct afb_wsj1_itf itf = {
- onHangup, onCall, onEvent,
-};
-
-// XXX: I am not sure this is the right thing to do though...
-std::recursive_mutex dispatch_mutex;
-
-json_object *drawing_name_json_argument(char const *label) {
- json_object *j = json_object_new_object();
- json_object_object_add(j, "drawing_name", json_object_new_string(label));
- return j;
-}
-
-} // namespace
-
-// _ ___ _ _ _
-// ___| | __ _ ___ ___ |_ _|_ __ ___ _ __ | | (_)_ __ ___ _ __ | |
-// / __| |/ _` / __/ __| | || '_ ` _ \| '_ \| | | | '_ ` _ \| '_ \| |
-// | (__| | (_| \__ \__ \ | || | | | | | |_) | | | | | | | | | |_) | |
-// \___|_|\__,_|___/___/ |___|_| |_| |_| .__/|_| |_|_| |_| |_| .__/|_|
-// |_| |_|
-LibWindowmanager::Impl::Impl() : wsj1{}, loop{}, labels(), handlers() { TRACE(); }
-
-LibWindowmanager::Impl::~Impl() {
- TRACE();
- afb_wsj1_unref(wsj1);
- sd_event_unref(loop);
-}
-
-int LibWindowmanager::Impl::init(int port, char const *token) {
- TRACE();
- char *uribuf = nullptr;
- int rc = -1;
-
- if (this->loop != nullptr && this->wsj1 != nullptr) {
- fputs("LibWindowmanager instance is already initialized!\n", stderr);
- rc = -EALREADY;
- goto fail;
- }
-
- if (token == nullptr) {
- fputs("Token is invalid\n", stderr);
- rc = -EINVAL;
- goto fail;
- }
-
- if (port < 1 || port > 0xffff) {
- fputs("Port is invalid\n", stderr);
- rc = -EINVAL;
- goto fail;
- }
-
- /* get the default event loop */
- rc = sd_event_default(&this->loop);
- if (rc < 0) {
- fprintf(stderr, "Connection to default event loop failed: %s\n",
- strerror(-rc));
- goto fail;
- }
-
- asprintf(&uribuf, "ws://localhost:%d/api?token=%s", port, token);
-
- /* connect the websocket wsj1 to the uri given by the first argument */
- this->wsj1 = afb_ws_client_connect_wsj1(
- this->loop, uribuf, const_cast<struct afb_wsj1_itf *>(&itf), this);
- if (this->wsj1 == nullptr) {
- sd_event_unref(this->loop);
- this->loop = nullptr;
- fprintf(stderr, "Connection to %s failed: %m\n", uribuf);
- rc = -errno;
- goto fail;
- }
-
- this->runEventLoop();
-
- return 0;
-
-fail:
- return rc;
-}
-
-int LibWindowmanager::Impl::requestSurface(const char *label) {
- TRACE();
-
- if (this->labels.find(label) != this->labels.end()) {
- fputs("Surface label already known!\n", stderr);
- return -EINVAL;
- }
-
- json_object *j = drawing_name_json_argument(label);
-
- int rc = -1;
- /* send the request */
- int rc2 =
- this->api_call("RequestSurface", j, [&rc](bool ok, json_object *j) {
- if (ok) {
- int id =
- json_object_get_int(json_object_object_get(j, "response"));
- char *buf;
- asprintf(&buf, "%d", id);
- printf("setenv(\"QT_IVI_SURFACE_ID\", %s, 1)\n", buf);
- if (setenv("QT_IVI_SURFACE_ID", buf, 1) != 0) {
- fprintf(stderr, "putenv failed: %m\n");
- rc = -errno;
- } else {
- rc = 0; // Single point of success
- }
- } else {
- fprintf(stderr, "Could not get surface ID from WM: %s\n",
- j != nullptr ? json_object_to_json_string_ext(
- j, JSON_C_TO_STRING_PRETTY)
- : "no-info");
- rc = -EINVAL;
- }
- });
-
- if (rc2 < 0) {
- rc = rc2;
- }
-
- if (rc >= 0) {
- this->labels.insert(this->labels.end(), label);
- }
-
- return rc;
-}
-
-int LibWindowmanager::Impl::activateSurface(const char *label) {
- TRACE();
- json_object *j = drawing_name_json_argument(label);
- return this->api_call("ActivateSurface", j, [](bool ok, json_object *j) {
- if (!ok) {
- fprintf(stderr, "API Call activate_surface() failed: %s\n",
- j != nullptr ? json_object_to_json_string_ext(
- j, JSON_C_TO_STRING_PRETTY)
- : "no-info");
- }
- });
-}
-
-int LibWindowmanager::Impl::deactivateSurface(const char *label) {
- TRACE();
- json_object *j = drawing_name_json_argument(label);
- return this->api_call("DeactivateSurface", j, [](bool ok, json_object *j) {
- if (!ok) {
- fprintf(stderr, "API Call deactivate_surface() failed: %s\n",
- j != nullptr ? json_object_to_json_string_ext(
- j, JSON_C_TO_STRING_PRETTY)
- : "no-info");
- }
- });
-}
-
-int LibWindowmanager::Impl::endDraw(const char *label) {
- TRACE();
- json_object *j = drawing_name_json_argument(label);
- return this->api_call("EndDraw", j, [](bool ok, json_object *j) {
- if (!ok) {
- fprintf(stderr, "API Call endDraw() failed: %s\n",
- j != nullptr ? json_object_to_json_string_ext(
- j, JSON_C_TO_STRING_PRETTY)
- : "no-info");
- }
- });
-}
-
-void LibWindowmanager::Impl::set_event_handler(
- enum EventType et, std::function<void(char const *)> func) {
- TRACE();
-
- if (et >= 1 && et <= 6) { // Yeah ... just go with it!
- this->handlers[et] = std::move(func);
- }
-}
-
-namespace {
-std::pair<bool, LibWindowmanager::EventType> make_event_type(char const *et) {
- // Event have the form "$API/$EVENT", just try to find the first / and
- // get on with it.
- char const *et2 = strchr(et, '/');
- if (et2 != nullptr) {
- et = et2 + 1;
- }
-
-#define ET(N, A) \
- do { \
- if (strcasecmp(et, N) == 0) \
- return std::pair<bool, LibWindowmanager::EventType>( \
- true, CONCAT(LibWindowmanager::Event_, A)); \
- } while (false)
-
- ET("active", Active);
- ET("inactive", Inactive);
- ET("visible", Visible);
- ET("invisible", Invisible);
- ET("syncdraw", SyncDraw);
- ET("flushdraw", FlushDraw);
-#undef ET
-
- return std::pair<bool, LibWindowmanager::EventType>(false,
- LibWindowmanager::Event_Active);
-}
-} // namespace
-
-static void _on_reply_static(void *closure, struct afb_wsj1_msg *msg)
-{
- // nop
-}
-
-
-/// object will be json_object_put
-int LibWindowmanager::Impl::api_call(
- const char *verb, json_object *object,
- const std::function<void(bool, json_object *)> &onReply) {
- TRACE();
-
- int rc = 0;
- if (0 == strcmp("RequestSurface", verb)) {
- // We need to wrap the actual onReply call once in order to
- // *look* like a normal functions pointer (std::functions<>
- // with captures cannot convert to function pointers).
- // Alternatively we could setup a local struct and use it as
- // closure, but I think it is cleaner this way.
- int call_rc = 0;
- std::atomic<bool> returned{};
- returned.store(false, std::memory_order_relaxed);
- std::function<void(bool, json_object *)> wrappedOnReply =
- [&returned, &call_rc, &onReply](bool ok, json_object *j) {
- TRACEN(wrappedOnReply);
- call_rc = ok ? 0 : -EINVAL;
- // We know it failed, but there may be an explanation in the
- // json object.
- {
- TRACEN(onReply);
- onReply(ok, j);
- }
- returned.store(true, std::memory_order_release);
- };
-
- // make the actual call, use wrappedOnReply as closure
- rc = afb_wsj1_call_j(
- this->wsj1, wmAPI, verb, object,
- [](void *closure, afb_wsj1_msg *msg) {
- TRACEN(callClosure);
- auto *onReply =
- reinterpret_cast<std::function<void(bool, json_object *)> *>(
- closure);
- (*onReply)(!(afb_wsj1_msg_is_reply_ok(msg) == 0),
- afb_wsj1_msg_object_j(msg));
- },
- &wrappedOnReply);
-
- if (0 == rc) {
- // We need to wait until "returned" got set, this is necessary
- // if events get triggered by the call (and would be dispatched before
- // the actual call-reply).
- while (!returned.load(std::memory_order_consume)) {
- sd_event_run(loop, 16);
- }
-
- // return the actual API call result
- rc = call_rc;
- }
- }
- else {
- rc = afb_wsj1_call_j(this->wsj1, wmAPI, verb, object, _on_reply_static, this);
- }
-
- if (rc < 0) {
- fprintf(
- stderr, "calling %s/%s(%s) failed: %m\n", wmAPI, verb,
- json_object_to_json_string_ext(object, JSON_C_TO_STRING_PRETTY));
- // Call the reply handler regardless with a NULL json_object*
- onReply(false, nullptr);
- }
-
- return rc;
-}
-
-void LibWindowmanager::Impl::event(char const *et, char const *label) {
- TRACE();
- auto oet = make_event_type(et);
- if (!oet.first) {
- fprintf(stderr, "Unknown event type string '%s'\n", et);
- return;
- }
-
- auto i = this->handlers.find(oet.second);
- if (i != this->handlers.end()) {
- if (this->labels.find(label) != this->labels.end()) {
- i->second(label);
- }
- }
-}
-
-static void *event_loop_run(void *args){
- struct sd_event* loop = (struct sd_event*)(args);
- for(;;)
- sd_event_run(loop, 30000000);
-}
-
-int LibWindowmanager::Impl::runEventLoop() {
- if(this->wsj1 && this->loop)
- {
- pthread_t thread_id;
- int ret = pthread_create(&thread_id, NULL, event_loop_run, this->loop);
- if(ret != 0)
- {
- printf("Cannot run eventloop due to error:%d", errno);
- return -1;
- }
- else
- return thread_id;
- }
- else
- {
- printf("Connecting is not established yet");
- return -1;
- }
-}
-
-// _ _ _____ ____ ____ _ _ _
-// ___| | __ _ ___ ___ / \ | ___| __ ) / ___| (_) ___ _ __ | |_
-// / __| |/ _` / __/ __| / _ \ | |_ | _ \| | | | |/ _ \ '_ \| __|
-// | (__| | (_| \__ \__ \ / ___ \| _| | |_) | |___| | | __/ | | | |_
-// \___|_|\__,_|___/___/ /_/ \_\_| |____/ \____|_|_|\___|_| |_|\__|
-//
-int LibWindowmanager::init(int port, char const *token) {
- return this->d->init(port, token);
-}
-
-int LibWindowmanager::requestSurface(const char *label) {
- return this->d->requestSurface(label);
-}
-
-int LibWindowmanager::activateSurface(const char *label) {
- return this->d->activateSurface(label);
-}
-
-int LibWindowmanager::deactivateSurface(const char *label) {
- return this->d->deactivateSurface(label);
-}
-
-int LibWindowmanager::endDraw(const char *label) { return this->d->endDraw(label); }
-
-void LibWindowmanager::set_event_handler(enum EventType et,
- std::function<void(char const *label)> f) {
- return this->d->set_event_handler(et, std::move(f));
-}
-
-LibWindowmanager::LibWindowmanager() : d(new Impl) {}
-
-LibWindowmanager::~LibWindowmanager() { delete d; }
+++ /dev/null
-/*
- * Copyright (c) 2017 TOYOTA MOTOR CORPORATION
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef LIBWINDOWMANAGER_H
-#define LIBWINDOWMANAGER_H
-
-#include <functional>
-
-class LibWindowmanager {
-public:
- LibWindowmanager();
- ~LibWindowmanager();
-
- LibWindowmanager(const LibWindowmanager &) = delete;
- LibWindowmanager &operator=(const LibWindowmanager &) = delete;
-
- using handler_fun = std::function<void(const char *)>;
-
- enum EventType {
- Event_Active = 1,
- Event_Inactive,
-
- Event_Visible,
- Event_Invisible,
-
- Event_SyncDraw,
- Event_FlushDraw,
- };
-
- int init(int port, char const *token);
-
- // WM API
- int requestSurface(const char *label);
- int activateSurface(const char *label);
- int deactivateSurface(const char *label);
- int endDraw(const char *label);
-
- void set_event_handler(enum EventType et, handler_fun f);
-
- struct Impl;
-
-private:
- Impl *const d;
-};
-#endif // LIBWINDOWMANAGER_H
+++ /dev/null
-includedir=@PROJECT_INCLUDEDIR@
-libdir=@PROJECT_LIBDIR@
-binding_install_dir=@binding_install_dir@
-
-Name: @PROJECT_PRETTY_NAME@
-Description: @PROJECT_DESCRIPTION@
-Version: @PROJECT_VERSION@
-URL: @PROJECT_URL@
-
-Requires: json-c afb-daemon
-Cflags: -I${includedir}
-Libs: -L${libdir} -lwindowmanager
Code Review / apps / agl-service-windowmanager-2017.git / commitdiff