diff options
Diffstat (limited to 'src/scripts.c')
| -rw-r--r-- | src/scripts.c | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/src/scripts.c b/src/scripts.c index 80894377..5d0aa418 100644 --- a/src/scripts.c +++ b/src/scripts.c @@ -93,6 +93,9 @@ static JSValueRef wv_set_title(JSContextRef ctx, JSObjectRef function, JSObjectR static JSValueRef wv_history(JSContextRef ctx, JSObjectRef function, JSObjectRef this, size_t argc, const JSValueRef argv[], JSValueRef* exc); static JSValueRef wv_reload(JSContextRef ctx, JSObjectRef function, JSObjectRef this, size_t argc, const JSValueRef argv[], JSValueRef* exc); static JSValueRef wv_inject(JSContextRef ctx, JSObjectRef function, JSObjectRef this, size_t argc, const JSValueRef argv[], JSValueRef* exc); +#if WEBKIT_CHECK_VERSION(1, 10, 0) +static JSValueRef wv_to_png(JSContextRef ctx, JSObjectRef function, JSObjectRef this, size_t argc, const JSValueRef argv[], JSValueRef* exc); +#endif static JSStaticFunction default_functions[] = { { "connect", connect_object, kJSDefaultAttributes }, { "disconnect", disconnect_object, kJSDefaultAttributes }, @@ -104,6 +107,9 @@ static JSStaticFunction wv_functions[] = { { "history", wv_history, kJSDefaultAttributes }, { "reload", wv_reload, kJSDefaultAttributes }, { "inject", wv_inject, kJSDefaultAttributes }, +#if WEBKIT_CHECK_VERSION(1, 10, 0) + { "toPng", wv_to_png, kJSDefaultAttributes }, +#endif { 0, 0, 0 }, }; static JSValueRef wv_get_main_frame(JSContextRef ctx, JSObjectRef object, JSStringRef js_name, JSValueRef* exception); @@ -420,6 +426,86 @@ wv_inject(JSContextRef ctx, JSObjectRef function, JSObjectRef this, size_t argc, } return JSValueMakeNull(ctx); }/*}}}*/ +#if WEBKIT_CHECK_VERSION(1, 10, 0) +static JSValueRef +wv_to_png(JSContextRef ctx, JSObjectRef function, JSObjectRef this, size_t argc, const JSValueRef argv[], JSValueRef* exc) { + WebKitWebView *wv; + cairo_status_t status = -1; + cairo_surface_t *sf; + char *filename; + if (argc < 1 || (wv = JSObjectGetPrivate(this)) == NULL || (JSValueIsNull(ctx, argv[0])) || (filename = js_value_to_char(ctx, argv[0], -1, NULL)) == NULL) { + return JSValueMakeNumber(ctx, status); + } + if (argc > 2) { + gboolean keep_aspect = false; + double width = JSValueToNumber(ctx, argv[1], exc); + double height = JSValueToNumber(ctx, argv[2], exc); + if (width != NAN && height != NAN) { + sf = webkit_web_view_get_snapshot(wv); + + if (argc > 3 && JSValueIsBoolean(ctx, argv[3])) + keep_aspect = JSValueToBoolean(ctx, argv[3]); + if (keep_aspect && (width <= 0 || height <= 0)) + return JSValueMakeNumber(ctx, status); + + + int w = cairo_image_surface_get_width(sf); + int h = cairo_image_surface_get_height(sf); + + double aspect = (double)w/h; + double new_width = width; + double new_height = height; + + if (width <= 0 || keep_aspect) + new_width = height * aspect; + if ((width > 0 && height <= 0) || keep_aspect) + new_height = width / aspect; + if (keep_aspect) { + if (new_width > width) { + new_width = width; + new_height = new_width / aspect; + } + else if (new_height > height) { + new_height = height; + new_width = new_height * aspect; + } + } + + double sw, sh; + if (width <= 0 || height <= 0) + sw = sh = MIN(width / w, height / h); + else { + sw = width / w; + sh = height / h; + } + + cairo_surface_t *scaled_surface = cairo_surface_create_similar_image(sf, CAIRO_FORMAT_RGB24, new_width, new_height); + cairo_t *cr = cairo_create(scaled_surface); + + cairo_save(cr); + cairo_scale(cr, sw, sh); + + cairo_set_source_surface(cr, sf, 0, 0); + cairo_paint(cr); + cairo_restore(cr); + + cairo_destroy(cr); + + status = cairo_surface_write_to_png(scaled_surface, filename); + cairo_surface_destroy(scaled_surface); + } + else + return JSValueMakeNumber(ctx, status); + } + else { + sf = webkit_web_view_get_snapshot(wv); + status = cairo_surface_write_to_png(sf, filename); + } + cairo_surface_destroy(sf); + + return JSValueMakeNumber(ctx, status); +} +#endif /* wv_get_main_frame {{{*/ static JSValueRef wv_get_main_frame(JSContextRef ctx, JSObjectRef object, JSStringRef js_name, JSValueRef* exception) { |