lottie/example: move resourcelist generation to evasapp class for reuse.

Change-Id: If96683fe079a6484195b87c2fdd96c385114af12

example/evasapp.cpp

@@ -1,4 +1,5 @@
 #include "evasapp.h"
+#include <dirent.h>
 
 static void
 _on_resize(Ecore_Evas *ee)
@@ -81,3 +82,27 @@ void EvasApp::run()
     ecore_main_loop_begin();
     ecore_evas_shutdown();
 }
+
+static bool isJsonFile(const char *filename) {
+  const char *dot = strrchr(filename, '.');
+  if(!dot || dot == filename) return false;
+  return !strcmp(dot + 1, "json");
+}
+
+std::vector<std::string>
+EvasApp::jsonFiles(const std::string &dirName, bool recurse)
+{
+    DIR *d;
+    struct dirent *dir;
+    std::vector<std::string> result;
+    d = opendir(dirName.c_str());
+    if (d) {
+      while ((dir = readdir(d)) != NULL) {
+        if (isJsonFile(dir->d_name))
+          result.push_back(dirName + dir->d_name);
+      }
+      closedir(d);
+    }
+    return result;
+}
+

example/evasapp.h

@@ -15,6 +15,9 @@
 #include <Ecore.h>
 #include <Ecore_Evas.h>
 #include <Ecore_Input.h>
+#include<vector>
+#include<string>
+
 
 typedef void (*appCb)(void *userData, void *extra);
 class EvasApp
@@ -32,6 +35,7 @@ public:
     void addExitCb(appCb exitcb, void *data) {mExitCb = exitcb; mExitData = data;}
     void addResizeCb(appCb resizecb, void *data) {mResizeCb = resizecb; mResizeData = data;}
     void addKeyCb(appCb keycb, void *data) {mKeyCb = keycb; mKeyData = data;}
+    static std::vector<std::string> jsonFiles(const std::string &dir, bool recurse=false);
 public:
     int           mw;
     int           mh;

example/lottieviewtest.cpp

@@ -22,46 +22,21 @@ public:
       mRenderMode = renderMode;
   }
 
-  bool isJsonFile(const char *filename) {
-    const char *dot = strrchr(filename, '.');
-    if(!dot || dot == filename) return false;
-    return !strcmp(dot + 1, "json");
-  }
-
-  void buildResourceList() {
-      DIR *d;
-      struct dirent *dir;
-      d = opendir(DEMO_DIR);
-      if (d) {
-        while ((dir = readdir(d)) != NULL) {
-          if (isJsonFile(dir->d_name))
-            mResource.push_back(dir->d_name);
-        }
-        closedir(d);
-      }
-  }
-  void displayResourceList() {
-    for(auto i : mResource) {
-       std::string filePath = DEMO_DIR;
-       filePath +=i;
-    }
-  }
-
   void show() {
-    if (mResource.empty()) return;
+    auto resource = EvasApp::jsonFiles(std::string(DEMO_DIR));
 
-    int count = mResource.size();
+    if (resource.empty()) return;
+
+    int count = resource.size();
     int colums = (int) ceil(sqrt(count));
     int offset = 3;
     int vw = (mApp->width() - (2 * offset * colums))/colums;
     int vh = vw;
     int posx = offset;
     int posy = offset;
-    for(auto i : mResource) {
+    for(auto filePath : resource) {
-       std::string filePath = DEMO_DIR;
-       filePath +=i;
 
-       std::unique_ptr<LottieView> view(new LottieView(mApp->evas(), mRenderMode));
+        std::unique_ptr<LottieView> view(new LottieView(mApp->evas(), mRenderMode));
        view->setFilePath(filePath.c_str());
        view->setPos(posx, posy);
        view->setSize(vw, vh);
@@ -84,7 +59,6 @@ public:
   EvasApp     *mApp;
   bool         mRenderMode = false;
   std::vector<std::unique_ptr<LottieView>>   mViews;
-  std::vector<std::string>                   mResource;
 };
 
 static void
@@ -106,7 +80,6 @@ main(int argc, char **argv)
            renderMode = false;
    }
    LottieViewTest *view = new LottieViewTest(app, renderMode);
-   view->buildResourceList();
    view->show();
 
    app->addExitCb(onExitCb, view);