Fix class name "App" to "WindowManager"

struct App is core class of Window Manager.
The name of "struct App" is strange so rename it to WindowManager.

Change-Id: Ia5f2e5acbadb8d58fe772aec0cd15a4a2e91369e
Signed-off-by: Kazumasa Mitsunari <knimitz@witz-inc.co.jp>

1 files changed, 272 insertions, 0 deletions

diff --git a/src/window_manager.hpp b/src/window_manager.hpp
new file mode 100644
index 0000000..ea4d56e
--- /dev/null
+++ b/src/window_manager.hpp
@@ -0,0 +1,272 @@
+/*
+ * 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 TMCAGLWM_APP_HPP
+#define TMCAGLWM_APP_HPP
+
+#include <json-c/json.h>
+#include <atomic>
+#include <memory>
+#include <unordered_map>
+#include <experimental/optional>
+#include "controller_hooks.hpp"
+#include "layers.hpp"
+#include "layout.hpp"
+#include "wayland_ivi_wm.hpp"
+#include "hmi-debug.h"
+#include "request.hpp"
+#include "wm_error.hpp"
+
+namespace wl
+{
+struct display;
+}
+
+namespace compositor
+{
+struct controller;
+}
+
+namespace wm
+{
+
+using std::experimental::optional;
+
+/* DrawingArea name used by "{layout}.{area}" */
+extern const char kNameLayoutNormal[];
+extern const char kNameLayoutSplit[];
+extern const char kNameAreaFull[];
+extern const char kNameAreaMain[];
+extern const char kNameAreaSub[];
+
+/* Key for json obejct */
+extern const char kKeyDrawingName[];
+extern const char kKeyDrawingArea[];
+extern const char kKeyDrawingRect[];
+extern const char kKeyX[];
+extern const char kKeyY[];
+extern const char kKeyWidth[];
+extern const char kKeyHeigh[];
+extern const char kKeyWidthPixel[];
+extern const char kKeyHeightPixel[];
+extern const char kKeyWidthMm[];
+extern const char kKeyHeightMm[];
+
+struct id_allocator
+{
+    unsigned next = 1;
+
+    // Surfaces that where requested but not yet created
+    std::unordered_map<unsigned, std::string> id2name;
+    std::unordered_map<std::string, unsigned> name2id;
+
+    id_allocator(id_allocator const &) = delete;
+    id_allocator(id_allocator &&) = delete;
+    id_allocator &operator=(id_allocator const &);
+    id_allocator &operator=(id_allocator &&) = delete;
+
+    // Insert and return a new ID
+    unsigned generate_id(std::string const &name)
+    {
+        unsigned sid = this->next++;
+        this->id2name[sid] = name;
+        this->name2id[name] = sid;
+        HMI_DEBUG("wm", "allocated new id %u with name %s", sid, name.c_str());
+        return sid;
+    }
+
+    // Insert a new ID which defined outside
+    void register_name_id(std::string const &name, unsigned sid)
+    {
+        this->id2name[sid] = name;
+        this->name2id[name] = sid;
+        HMI_DEBUG("wm", "register id %u with name %s", sid, name.c_str());
+        return;
+    }
+
+    // Lookup by ID or by name
+    optional<unsigned> lookup(std::string const &name) const
+    {
+        auto i = this->name2id.find(name);
+        return i == this->name2id.end() ? nullopt : optional<unsigned>(i->second);
+    }
+
+    optional<std::string> lookup(unsigned id) const
+    {
+        auto i = this->id2name.find(id);
+        return i == this->id2name.end() ? nullopt
+                                        : optional<std::string>(i->second);
+    }
+
+    // Remove a surface id and name
+    void remove_id(std::string const &name)
+    {
+        auto i = this->name2id.find(name);
+        if (i != this->name2id.end())
+        {
+            this->id2name.erase(i->second);
+            this->name2id.erase(i);
+        }
+    }
+
+    void remove_id(unsigned id)
+    {
+        auto i = this->id2name.find(id);
+        if (i != this->id2name.end())
+        {
+            this->name2id.erase(i->second);
+            this->id2name.erase(i);
+        }
+    }
+};
+
+class WindowManager
+{
+  public:
+    typedef std::unordered_map<uint32_t, struct compositor::rect> rect_map;
+    typedef std::function<void(const char *err_msg)> reply_func;
+
+    enum EventType
+    {
+        Event_Val_Min = 0,
+
+        Event_Active = Event_Val_Min,
+        Event_Inactive,
+
+        Event_Visible,
+        Event_Invisible,
+
+        Event_SyncDraw,
+        Event_FlushDraw,
+
+        Event_Error,
+
+        Event_Val_Max = Event_Error,
+    };
+
+    const std::vector<const char *> kListEventName{
+        "active",
+        "inactive",
+        "visible",
+        "invisible",
+        "syncdraw",
+        "flushdraw",
+        "error"};
+
+    struct controller_hooks chooks;
+
+    // This is the one thing, we do not own.
+    struct wl::display *display;
+
+    std::unique_ptr<struct compositor::controller> controller;
+    std::vector<std::unique_ptr<struct wl::output>> outputs;
+
+    // track current layouts separately
+    layer_map layers;
+
+    // ID allocation and proxy methods for lookup
+    struct id_allocator id_alloc;
+
+    // Set by AFB API when wayland events need to be dispatched
+    std::atomic<bool> pending_events;
+
+    std::map<const char *, struct afb_event> map_afb_event;
+
+    // Surface are info (x, y, w, h)
+    rect_map area_info;
+
+    // FOR CES DEMO
+    std::vector<int> surface_bg;
+
+    explicit WindowManager(wl::display *d);
+    ~WindowManager() = default;
+
+    WindowManager(WindowManager const &) = delete;
+    WindowManager &operator=(WindowManager const &) = delete;
+    WindowManager(WindowManager &&) = delete;
+    WindowManager &operator=(WindowManager &&) = delete;
+
+    int init();
+    int dispatch_pending_events();
+    void set_pending_events();
+
+    result<int> api_request_surface(char const *appid, char const *drawing_name);
+    char const *api_request_surface(char const *appid, char const *drawing_name, char const *ivi_id);
+    void api_activate_surface(char const *appid, char const *drawing_name, char const *drawing_area, const reply_func &reply);
+    void api_deactivate_surface(char const *appid, char const *drawing_name, const reply_func &reply);
+    void api_enddraw(char const *appid, char const *drawing_name);
+    result<json_object *> api_get_display_info();
+    result<json_object *> api_get_area_info(char const *drawing_name);
+    void api_ping();
+    void send_event(char const *evname, char const *label);
+    void send_event(char const *evname, char const *label, char const *area, int x, int y, int w, int h);
+
+    // Events from the compositor we are interested in
+    void surface_created(uint32_t surface_id);
+    void surface_removed(uint32_t surface_id);
+
+    void removeClient(const std::string &appid);
+    void exceptionProcessForTransition();
+    // Do not use this function
+    void timerHandler();
+
+  private:
+    bool pop_pending_events();
+    optional<int> lookup_id(char const *name);
+    optional<std::string> lookup_name(int id);
+    int init_layers();
+    void surface_set_layout(int surface_id, const std::string& area = "");
+    void layout_commit();
+
+    // WM Events to clients
+    void emit_activated(char const *label);
+    void emit_deactivated(char const *label);
+    void emit_syncdraw(char const *label, char const *area, int x, int y, int w, int h);
+    void emit_syncdraw(const std::string &role, const std::string &area);
+    void emit_flushdraw(char const *label);
+    void emit_visible(char const *label, bool is_visible);
+    void emit_invisible(char const *label);
+    void emit_visible(char const *label);
+
+    WMError setRequest(const std::string &appid, const std::string &role, const std::string &area,
+                             Task task, unsigned *req_num);
+    WMError doTransition(unsigned sequence_number);
+    WMError checkPolicy(unsigned req_num);
+    WMError startTransition(unsigned req_num);
+    WMError setInvisibleTask(const std::string &role, bool split);
+
+    WMError doEndDraw(unsigned req_num);
+    WMError layoutChange(const WMAction &action);
+    WMError visibilityChange(const WMAction &action);
+    WMError setSurfaceSize(unsigned surface, const std::string& area);
+    WMError changeCurrentState(unsigned req_num);
+
+    void setTimer();
+    void stopTimer();
+    void processNextRequest();
+
+    const char *check_surface_exist(const char *drawing_name);
+    void activate(int id);
+    void deactivate(int id);
+    bool can_split(struct LayoutState const &state, int new_id);
+
+  private:
+    std::unordered_map<std::string, struct compositor::rect> area2size;
+};
+
+} // namespace wm
+
+#endif // TMCAGLWM_APP_HPP