From 36cfeaf99bbf6f9431cb55ab9f04a67a491299c1 Mon Sep 17 00:00:00 2001
From: Tor Andersson <tor.andersson@artifex.com>
Date: Tue, 13 Feb 2018 14:37:42 +0100
Subject: Add JNI and JS bindings to layer device calls.

---
 source/tools/murun.c | 56 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 56 insertions(+)

(limited to 'source/tools')

diff --git a/source/tools/murun.c b/source/tools/murun.c
index 93e04b3e..4f535670 100644
--- a/source/tools/murun.c
+++ b/source/tools/murun.c
@@ -1146,6 +1146,35 @@ js_dev_end_tile(fz_context *ctx, fz_device *dev)
 	js_endtry(J);
 }
 
+static void
+js_dev_begin_layer(fz_context *ctx, fz_device *dev, const char *name)
+{
+	js_State *J = ((js_device*)dev)->J;
+	if (js_try(J))
+		rethrow_as_fz(J);
+	if (js_hasproperty(J, -1, "beginLayer")) {
+		js_copy(J, -2);
+		js_pushstring(J, name);
+		js_call(J, 1);
+		js_pop(J, 1);
+	}
+	js_endtry(J);
+}
+
+static void
+js_dev_end_layer(fz_context *ctx, fz_device *dev)
+{
+	js_State *J = ((js_device*)dev)->J;
+	if (js_try(J))
+		rethrow_as_fz(J);
+	if (js_hasproperty(J, -1, "endLayer")) {
+		js_copy(J, -2);
+		js_call(J, 0);
+		js_pop(J, 1);
+	}
+	js_endtry(J);
+}
+
 static fz_device *new_js_device(fz_context *ctx, js_State *J)
 {
 	js_device *dev = fz_new_derived_device(ctx, js_device);
@@ -1176,6 +1205,9 @@ static fz_device *new_js_device(fz_context *ctx, js_State *J)
 	dev->super.begin_tile = js_dev_begin_tile;
 	dev->super.end_tile = js_dev_end_tile;
 
+	dev->super.begin_layer = js_dev_begin_layer;
+	dev->super.end_layer = js_dev_end_layer;
+
 	dev->J = J;
 	return (fz_device*)dev;
 }
@@ -1455,6 +1487,27 @@ static void ffi_Device_endTile(js_State *J)
 		rethrow(J);
 }
 
+static void ffi_Device_beginLayer(js_State *J)
+{
+	fz_context *ctx = js_getcontext(J);
+	fz_device *dev = js_touserdata(J, 0, "fz_device");
+	const char *name = js_tostring(J, 1);
+	fz_try(ctx)
+		fz_begin_layer(ctx, dev, name);
+	fz_catch(ctx)
+		rethrow(J);
+}
+
+static void ffi_Device_endLayer(js_State *J)
+{
+	fz_context *ctx = js_getcontext(J);
+	fz_device *dev = js_touserdata(J, 0, "fz_device");
+	fz_try(ctx)
+		fz_end_layer(ctx, dev);
+	fz_catch(ctx)
+		rethrow(J);
+}
+
 /* mupdf module */
 
 static void ffi_readFile(js_State *J)
@@ -4469,6 +4522,9 @@ int murun_main(int argc, char **argv)
 		jsB_propfun(J, "Device.endGroup", ffi_Device_endGroup, 0);
 		jsB_propfun(J, "Device.beginTile", ffi_Device_beginTile, 6);
 		jsB_propfun(J, "Device.endTile", ffi_Device_endTile, 0);
+
+		jsB_propfun(J, "Device.beginLayer", ffi_Device_beginLayer, 1);
+		jsB_propfun(J, "Device.endLayer", ffi_Device_endLayer, 0);
 	}
 	js_setregistry(J, "fz_device");
 
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