grpc-proxy: Add dynamic scale of floating windows

This adds basic scaling for floating windows, sending new dimensions to
the clients to resize itself.

Bug-AGL: SPEC-4862
Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
Change-Id: Ic693153cd704b278dcddd2514afc8dafecf8829b

8 files changed, 86 insertions, 14 deletions

diff --git a/grpc-proxy/agl_shell.proto b/grpc-proxy/agl_shell.proto
index 74ea958..c4f3dfe 100644
--- a/grpc-proxy/agl_shell.proto
+++ b/grpc-proxy/agl_shell.proto
@@ -4,16 +4,17 @@ syntax = "proto3";
 package agl_shell_ipc;
 
 service AglShellManagerService {
-       rpc ActivateApp(ActivateRequest)				returns (ActivateResponse) {}
-       rpc DeactivateApp(DeactivateRequest)			returns (DeactivateResponse) {}
-       rpc SetAppSplit(SplitRequest)				returns (SplitResponse) {}
-       rpc SetAppFloat(FloatRequest)				returns (FloatResponse) {}
-       rpc SetAppFullscreen(FullscreenRequest)			returns (FullscreenResponse) {}
-       rpc AppStatusState(AppStateRequest)			returns (stream AppStateResponse) {}
-       rpc GetOutputs(OutputRequest)				returns (ListOutputResponse) {}
-       rpc SetAppNormal(NormalRequest)				returns (NormalResponse) {}
-       rpc SetAppOnOutput(AppOnOutputRequest)			returns (AppOnOutputResponse) {}
-       rpc SetAppPosition(AppPositionRequest)			returns (AppPositionResponse) {}
+       rpc ActivateApp(ActivateRequest)			returns (ActivateResponse) {}
+       rpc DeactivateApp(DeactivateRequest)		returns (DeactivateResponse) {}
+       rpc SetAppSplit(SplitRequest)			returns (SplitResponse) {}
+       rpc SetAppFloat(FloatRequest)			returns (FloatResponse) {}
+       rpc SetAppFullscreen(FullscreenRequest)		returns (FullscreenResponse) {}
+       rpc AppStatusState(AppStateRequest)		returns (stream AppStateResponse) {}
+       rpc GetOutputs(OutputRequest)			returns (ListOutputResponse) {}
+       rpc SetAppNormal(NormalRequest)			returns (NormalResponse) {}
+       rpc SetAppOnOutput(AppOnOutputRequest)		returns (AppOnOutputResponse) {}
+       rpc SetAppPosition(AppPositionRequest)		returns (AppPositionResponse) {}
+       rpc SetAppScale(AppScaleRequest)			returns (AppScaleResponse) {}
 }
 
 message ActivateRequest {
@@ -98,3 +99,12 @@ message AppPositionRequest {
 
 message AppPositionResponse {
 };
+
+message AppScaleRequest {
+       string app_id = 1;
+       int32 width = 2;
+       int32 height = 3;
+};
+
+message AppScaleResponse {
+};
diff --git a/grpc-proxy/grpc-async-cb.cpp b/grpc-proxy/grpc-async-cb.cpp
index 92aaa3c..9cbbb4d 100644
--- a/grpc-proxy/grpc-async-cb.cpp
+++ b/grpc-proxy/grpc-async-cb.cpp
@@ -171,6 +171,19 @@ GrpcServiceImpl::SetAppPosition(grpc::CallbackServerContext *context,
 }
 
 grpc::ServerUnaryReactor *
+GrpcServiceImpl::SetAppScale(grpc::CallbackServerContext *context,
+                            const ::agl_shell_ipc::AppScaleRequest* request,
+                            ::agl_shell_ipc::AppScaleResponse* /* response */)
+{
+	m_aglShell->SetAppScale(request->app_id(),
+				request->width(), request->height());
+
+	grpc::ServerUnaryReactor* reactor = context->DefaultReactor();
+	reactor->Finish(grpc::Status::OK);
+	return reactor;
+}
+
+grpc::ServerUnaryReactor *
 GrpcServiceImpl::SetAppSplit(grpc::CallbackServerContext *context,
            const ::agl_shell_ipc::SplitRequest* request,
            ::agl_shell_ipc::SplitResponse* /*response*/)
diff --git a/grpc-proxy/grpc-async-cb.h b/grpc-proxy/grpc-async-cb.h
index 21a4e4d..cb8adcb 100644
--- a/grpc-proxy/grpc-async-cb.h
+++ b/grpc-proxy/grpc-async-cb.h
@@ -100,6 +100,10 @@ public:
 			const ::agl_shell_ipc::AppPositionRequest* request,
 			::agl_shell_ipc::AppPositionResponse* /*response*/) override;
 
+	grpc::ServerUnaryReactor *SetAppScale(grpc::CallbackServerContext *context,
+			const ::agl_shell_ipc::AppScaleRequest* request,
+			::agl_shell_ipc::AppScaleResponse* /*response*/) override;
+
 	grpc::ServerWriteReactor< ::agl_shell_ipc::AppStateResponse>* AppStatusState(
 	      ::grpc::CallbackServerContext* /*context*/,
 	      const ::agl_shell_ipc::AppStateRequest* /*request*/)  override;
diff --git a/grpc-proxy/main-grpc.cpp b/grpc-proxy/main-grpc.cpp
index 740594f..b2eca84 100644
--- a/grpc-proxy/main-grpc.cpp
+++ b/grpc-proxy/main-grpc.cpp
@@ -275,7 +275,7 @@ global_add(void *data, struct wl_registry *reg, uint32_t id,
 		sh->shell =
 			static_cast<struct agl_shell *>(wl_registry_bind(reg, id,
 				&agl_shell_interface,
-				std::min(static_cast<uint32_t>(9), version)));
+				std::min(static_cast<uint32_t>(10), version)));
 		agl_shell_add_listener(sh->shell, &shell_listener, data);
 		sh->version = version;
 	} else if (strcmp(interface, "wl_output") == 0) {
@@ -299,7 +299,7 @@ global_add_init(void *data, struct wl_registry *reg, uint32_t id,
 		sh->shell =
 			static_cast<struct agl_shell *>(wl_registry_bind(reg, id,
 				&agl_shell_interface,
-				std::min(static_cast<uint32_t>(9), version)));
+				std::min(static_cast<uint32_t>(10), version)));
 		agl_shell_add_listener(sh->shell, &shell_listener_init, data);
 		sh->version = version;
 	}
diff --git a/grpc-proxy/shell.cpp b/grpc-proxy/shell.cpp
index 44f2117..bc2df23 100644
--- a/grpc-proxy/shell.cpp
+++ b/grpc-proxy/shell.cpp
@@ -130,6 +130,16 @@ Shell::SetAppPosition(const std::string &app_id, const int32_t x, const int32_t
 }
 
 void
+Shell::SetAppScale(const std::string &app_id,
+		const int32_t width, const int32_t height)
+{
+	struct agl_shell *shell = this->m_shell.get();
+
+	agl_shell_set_app_scale(shell, app_id.c_str(), width, height);
+	wl_display_flush(m_shell_data->wl_display);
+}
+
+void
 Shell::SetAppSplit(const std::string &app_id, uint32_t orientation)
 {
 	(void) app_id;
diff --git a/grpc-proxy/shell.h b/grpc-proxy/shell.h
index b9a818c..95aae79 100644
--- a/grpc-proxy/shell.h
+++ b/grpc-proxy/shell.h
@@ -47,4 +47,5 @@ public:
 	void SetAppFullscreen(const std::string &app_id);
 	void SetAppOnOutput(const std::string &app_id, const std::string &output);
 	void SetAppPosition(const std::string &app_id, int32_t x, int32_t y);
+	void SetAppScale(const std::string &app_id, int32_t width, int32_t height);
 };
diff --git a/protocol/agl-shell.xml b/protocol/agl-shell.xml
index b85cf01..b11beb6 100644
--- a/protocol/agl-shell.xml
+++ b/protocol/agl-shell.xml
@@ -22,7 +22,7 @@
     FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
     DEALINGS IN THE SOFTWARE.
   </copyright>
-  <interface name="agl_shell" version="9">
+  <interface name="agl_shell" version="10">
     <description summary="user interface for Automotive Grade Linux platform">
       Starting with version 2 of the protocol, the client is required to wait
       for the 'bound_ok' or 'bound_fail' events in order to proceed further.
@@ -324,6 +324,24 @@
       <arg name="x" type="int"/>
       <arg name="y" type="int"/>
     </request>
+
+    <request name="set_app_scale" since="10">
+      <description summary="scale window to a specific rectangle">
+        Clients can inform the compositor to scale a floating type of window
+        to the values specified in width and height. If the window is
+        not a floating type, the request will be discarded. If the window
+        doesn't exist the compositor will ignore the request. For this request
+        to function properly the window would first to be set as floating
+        and then it can be moved using this request.
+
+
+        see xdg_toplevel.set_app_id from the xdg-shell protocol for a
+        description of app_id.
+      </description>
+      <arg name="app_id" type="string"/>
+      <arg name="width" type="int"/>
+      <arg name="height" type="int"/>
+    </request>
   </interface>
 
   <interface name="agl_shell_ext" version="1">
diff --git a/src/shell.c b/src/shell.c
index 2ce6ac4..f5dc3e3 100644
--- a/src/shell.c
+++ b/src/shell.c
@@ -1679,6 +1679,21 @@ shell_set_app_position(struct wl_client *client, struct wl_resource *res,
 }
 
 static void
+shell_set_app_scale(struct wl_client *client, struct wl_resource *res,
+		    const char *app_id, int32_t width, int32_t height)
+{
+
+	struct ivi_compositor *ivi = wl_resource_get_user_data(res);
+	struct ivi_surface *surf = ivi_find_app(ivi, app_id);
+
+	if (!surf || !app_id || surf->role != IVI_SURFACE_ROLE_POPUP)
+		return;
+
+	weston_desktop_surface_set_size(surf->dsurface, width, height);
+	weston_compositor_schedule_repaint(ivi->compositor);
+}
+
+static void
 shell_ext_destroy(struct wl_client *client, struct wl_resource *res)
 {
 	wl_resource_destroy(res);
@@ -1707,6 +1722,7 @@ static const struct agl_shell_interface agl_shell_implementation = {
 	.set_app_fullscreen = shell_set_app_fullscreen,
 	.set_app_output = shell_set_app_output,
 	.set_app_position = shell_set_app_position,
+	.set_app_scale = shell_set_app_scale,
 };
 
 static const struct agl_shell_ext_interface agl_shell_ext_implementation = {
@@ -2008,7 +2024,7 @@ int
 ivi_shell_create_global(struct ivi_compositor *ivi)
 {
 	ivi->agl_shell = wl_global_create(ivi->compositor->wl_display,
-					  &agl_shell_interface, 9,
+					  &agl_shell_interface, 10,
 					  ivi, bind_agl_shell);
 	if (!ivi->agl_shell) {
 		weston_log("Failed to create wayland global.\n");