From a45c8d0398932c9358727b4e564ce64b3aa199dc Mon Sep 17 00:00:00 2001
From: Taehyub Kim <taehyub.kim@samsung.com>
Date: Sun, 18 Apr 2021 17:04:30 +0900
Subject: [PATCH] example: implements animation selection function for rive
 tizen viewer.

Change-Id: Ie16aefd301a1aa89966e191b2bee5e6bbb5bd96f
---
 example/rive_viewer.cpp | 59 +++++++++++++++++++++++++++++++++++++++++++++----
 1 file changed, 55 insertions(+), 4 deletions(-)

diff --git a/example/rive_viewer.cpp b/example/rive_viewer.cpp
index 37a055f..83e1cab 100644
--- a/example/rive_viewer.cpp
+++ b/example/rive_viewer.cpp
@@ -23,6 +23,7 @@ static Ecore_Animator *animator = nullptr;
 static Eo* view = nullptr;
 static vector<std::string> rivefiles;
 static double lastTime;
+static Eo* statePopup = nullptr;
 
 static void deleteWindow(void *data, Evas_Object *obj, void *ev)
 {
@@ -41,6 +42,15 @@ static bool isRiveFile(const char *filename)
     return !strcmp(dot + 1, "riv");
 }
 
+static void initAnimation(int index)
+{
+    delete animationInstance;
+    animationInstance = nullptr;
+
+    auto animation = artboard->animation(index);
+    if (animation) animationInstance = new rive::LinearAnimationInstance(animation);
+}
+
 static void loadRiveFile(const char* filename)
 {
     lastTime = ecore_time_get();    //Check point
@@ -90,11 +100,12 @@ static void fileClickedCb (void *data, Evas_Object *obj, void *event_info)
 {
     Elm_Object_Item *item = elm_list_selected_item_get(obj);
     int index = 0;
-    for (Elm_Object_Item *iter = item; iter != NULL; iter = elm_list_item_prev(iter))
+    for (Elm_Object_Item *iter = item; iter != nullptr; iter = elm_list_item_prev(iter))
     {
        index++;
     }
     if (rivefiles.size() > 0) loadRiveFile(rivefiles[index-1].c_str());
+    if (statePopup) elm_ctxpopup_dismiss(statePopup);
 }
 
 static std::vector<std::string> riveFiles(const std::string &dirName)
@@ -105,7 +116,7 @@ static std::vector<std::string> riveFiles(const std::string &dirName)
     d = opendir(dirName.c_str());
     if (d)
     {
-      while ((dir = readdir(d)) != NULL)
+      while ((dir = readdir(d)) != nullptr)
       {
         if (isRiveFile(dir->d_name)) result.push_back(dirName + dir->d_name);
       }
@@ -160,9 +171,48 @@ static void cleanExample()
     delete animationInstance;
 }
 
+static void animPopupItemCb(void *data EINA_UNUSED, Evas_Object *obj, void *event_info)
+{
+    int animationIndex = static_cast<int>(reinterpret_cast<intptr_t>(data));
+    initAnimation(animationIndex);
+    elm_ctxpopup_dismiss(statePopup);
+}
+
+static Elm_Object_Item* animPopupItemNew(Evas_Object *obj, const char *label, int index)
+{
+    Elm_Object_Item *it = nullptr;
+
+    if (!obj) return nullptr;
+
+    return elm_ctxpopup_item_append(obj, label, nullptr, animPopupItemCb, (void*)index);
+}
+
+static void animPopupDismissCb(void *data EINA_UNUSED, Evas_Object *obj, void *event_info EINA_UNUSED)
+{
+    evas_object_del(obj);
+    statePopup = nullptr;
+}
+
+static void viewClickedCb(void *data, Evas *e EINA_UNUSED, Evas_Object *obj EINA_UNUSED, void *event_info)
+{
+    if (!artboard) return;
+    if (statePopup) evas_object_del(statePopup);
+
+    statePopup = elm_ctxpopup_add(obj);
+    evas_object_smart_callback_add(statePopup, "dismissed", animPopupDismissCb, nullptr);
+
+    for (int index = 0; index < artboard->animationCount(); index++)
+      animPopupItemNew(statePopup, artboard->animation(index)->name().c_str(), index);
+
+    int x, y;
+    evas_pointer_canvas_xy_get(evas_object_evas_get(obj), &x, &y);
+    evas_object_move(statePopup, x, y);
+    evas_object_show(statePopup);
+}
+
 static void setupScreen(uint32_t* buffer)
 {
-    Eo* win = elm_win_util_standard_add(NULL, "Rive Viewer");
+    Eo* win = elm_win_util_standard_add(nullptr, "Rive Viewer");
     evas_object_smart_callback_add(win, "delete,request", deleteWindow, 0);
 
     Eo* box = elm_box_add(win);
@@ -181,6 +231,7 @@ static void setupScreen(uint32_t* buffer)
     evas_object_show(view);
 
     elm_box_pack_end(box, view);
+    evas_object_event_callback_add(view, EVAS_CALLBACK_MOUSE_UP, viewClickedCb, nullptr);
 
     Eo *fileList = elm_list_add(box);
     evas_object_size_hint_weight_set(fileList, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
@@ -191,7 +242,7 @@ static void setupScreen(uint32_t* buffer)
     for (size_t i = 0; i < rivefiles.size(); i++)
     {
        const char *ptr = strrchr(rivefiles[i].c_str(), '/');
-       elm_list_item_append(fileList, ptr + 1, NULL, NULL, fileClickedCb, NULL);
+       elm_list_item_append(fileList, ptr + 1, nullptr, nullptr, fileClickedCb, nullptr);
     }
     elm_list_go(fileList);
 
-- 
2.7.4