Fix nwjs#648: provide nw.App.startPath

rogerwang · rogerwang · commit a8197eb2bd31 · 2018-05-22T14:55:18.000+08:00
diff --git a/src/api/nw_app.idl b/src/api/nw_app.idl
@@ -25,6 +25,7 @@ namespace nw.App {
     [nocompile] static void removeOriginAccessWhitelistEntry(DOMString sourceOrigin, DOMString destinationProtocol, DOMString destinationHost, boolean allowDestinationSubdomains);
     static DOMString[] getArgvSync();
     static DOMString getDataPath();
+    [nocompile] static DOMString getStartPath();
     static void crashBrowser();
   };
   interface Events {
diff --git a/src/nw_custom_bindings.cc b/src/nw_custom_bindings.cc
@@ -94,6 +94,14 @@ using namespace blink;
 #include "V8HTMLIFrameElement.h"
 #include "extensions/renderer/script_context_set.h"
 
+namespace content {
+#if defined(COMPONENT_BUILD) && defined(WIN32)
+CONTENT_EXPORT base::FilePath g_nw_temp_dir, g_nw_old_cwd;
+#else
+extern base::FilePath g_nw_temp_dir, g_nw_old_cwd;
+#endif
+}
+
 using blink::WebFrame;
 
 namespace extensions {
@@ -133,6 +141,9 @@ void NWCustomBindings::AddRoutes() {
   RouteHandlerFunction("crashRenderer",
                 base::Bind(&NWCustomBindings::CrashRenderer,
                            base::Unretained(this)));
+  RouteHandlerFunction("getOldCwd",
+                base::Bind(&NWCustomBindings::GetOldCwd,
+                           base::Unretained(this)));
   RouteHandlerFunction("evalScript",
                 base::Bind(&NWCustomBindings::EvalScript,
                            base::Unretained(this)));
@@ -317,6 +328,17 @@ void NWCustomBindings::GetAbsolutePath(
 #endif
 }
 
+void NWCustomBindings::GetOldCwd(
+    const v8::FunctionCallbackInfo<v8::Value>& args) {
+  v8::Isolate* isolate = args.GetIsolate();
+  base::FilePath path = content::g_nw_old_cwd;
+#if defined(OS_POSIX)
+  args.GetReturnValue().Set(v8::String::NewFromUtf8(isolate, path.value().c_str()));
+#else
+  args.GetReturnValue().Set(v8::String::NewFromUtf8(isolate, path.AsUTF8Unsafe().c_str()));
+#endif
+}
+
 void NWCustomBindings::AddOriginAccessWhitelistEntry(const v8::FunctionCallbackInfo<v8::Value>& args) {
   v8::Isolate* isolate = args.GetIsolate();
 
diff --git a/src/nw_custom_bindings.h b/src/nw_custom_bindings.h
@@ -22,6 +22,7 @@ class NWCustomBindings : public ObjectBackedNativeHandler {
   void EvalScript(const v8::FunctionCallbackInfo<v8::Value>& args);
   void EvalNWBin(const v8::FunctionCallbackInfo<v8::Value>& args);
   void GetAbsolutePath(const v8::FunctionCallbackInfo<v8::Value>& args);
+  void GetOldCwd(const v8::FunctionCallbackInfo<v8::Value>& args);
   void AddOriginAccessWhitelistEntry(const v8::FunctionCallbackInfo<v8::Value>& args);
   void RemoveOriginAccessWhitelistEntry(const v8::FunctionCallbackInfo<v8::Value>& args);
   void GetProxyForURL(const v8::FunctionCallbackInfo<v8::Value>& args);
diff --git a/src/resources/api_nw_app.js b/src/resources/api_nw_app.js
@@ -108,11 +108,17 @@ nw_binding.registerCustomHook(function(bindingsAPI) {
   apiFunctions.setHandleRequest('getDataPath', function() {
     return sendRequest.sendRequestSync('nw.App.getDataPath', [], this.definition.parameters, {})[0];
   });
+  apiFunctions.setHandleRequest('getStartPath', function() {
+    return nwNatives.getOldCwd();
+  });
   bindingsAPI.compiledApi.__defineGetter__('dataPath', function() {
     if (!dataPath)
       dataPath = nw.App.getDataPath();
     return dataPath;
   });
+  bindingsAPI.compiledApi.__defineGetter__('startPath', function() {
+    return nw.App.getStartPath();
+  });
   bindingsAPI.compiledApi.registerGlobalHotKey = function() {
     return nw.Shortcut.registerGlobalHotKey.apply(nw.Shortcut, arguments);
   };
