chore: bump chromium to f5b345dd470f14eef6e44732ccf23 (master) (#20649)

shell/browser/ui/gtk_util.cc

@@ -0,0 +1,82 @@
+// Copyright (c) 2019 GitHub, Inc.
+// Use of this source code is governed by the MIT license that can be
+// found in the LICENSE file.
+
+#include "shell/browser/ui/gtk_util.h"
+
+#include <gdk/gdk.h>
+#include <gtk/gtk.h>
+#include <stdint.h>
+
+#include "third_party/skia/include/core/SkBitmap.h"
+#include "third_party/skia/include/core/SkColor.h"
+#include "third_party/skia/include/core/SkUnPreMultiply.h"
+
+namespace gtk_util {
+
+// Copied from L40-L55 in
+// https://cs.chromium.org/chromium/src/chrome/browser/ui/libgtkui/select_file_dialog_impl_gtk.cc
+#if GTK_CHECK_VERSION(3, 90, 0)
+// GTK stock items have been deprecated.  The docs say to switch to using the
+// strings "_Open", etc.  However this breaks i18n.  We could supply our own
+// internationalized strings, but the "_" in these strings is significant: it's
+// the keyboard shortcut to select these actions.  TODO: Provide
+// internationalized strings when GTK provides support for it.
+const char* const kCancelLabel = "_Cancel";
+const char* const kNoLabel = "_No";
+const char* const kOkLabel = "_OK";
+const char* const kOpenLabel = "_Open";
+const char* const kSaveLabel = "_Save";
+const char* const kYesLabel = "_Yes";
+#else
+G_GNUC_BEGIN_IGNORE_DEPRECATIONS
+const char* const kCancelLabel = GTK_STOCK_CANCEL;
+const char* const kNoLabel = GTK_STOCK_NO;
+const char* const kOkLabel = GTK_STOCK_OK;
+const char* const kOpenLabel = GTK_STOCK_OPEN;
+const char* const kSaveLabel = GTK_STOCK_SAVE;
+const char* const kYesLabel = GTK_STOCK_YES;
+G_GNUC_END_IGNORE_DEPRECATIONS
+#endif
+
+GdkPixbuf* GdkPixbufFromSkBitmap(const SkBitmap& bitmap) {
+  if (bitmap.isNull())
+    return nullptr;
+
+  int width = bitmap.width();
+  int height = bitmap.height();
+
+  GdkPixbuf* pixbuf =
+      gdk_pixbuf_new(GDK_COLORSPACE_RGB,  // The only colorspace gtk supports.
+                     TRUE,                // There is an alpha channel.
+                     8, width, height);
+
+  // SkBitmaps are premultiplied, we need to unpremultiply them.
+  const int kBytesPerPixel = 4;
+  uint8_t* divided = gdk_pixbuf_get_pixels(pixbuf);
+
+  for (int y = 0, i = 0; y < height; y++) {
+    for (int x = 0; x < width; x++) {
+      uint32_t pixel = bitmap.getAddr32(0, y)[x];
+
+      int alpha = SkColorGetA(pixel);
+      if (alpha != 0 && alpha != 255) {
+        SkColor unmultiplied = SkUnPreMultiply::PMColorToColor(pixel);
+        divided[i + 0] = SkColorGetR(unmultiplied);
+        divided[i + 1] = SkColorGetG(unmultiplied);
+        divided[i + 2] = SkColorGetB(unmultiplied);
+        divided[i + 3] = alpha;
+      } else {
+        divided[i + 0] = SkColorGetR(pixel);
+        divided[i + 1] = SkColorGetG(pixel);
+        divided[i + 2] = SkColorGetB(pixel);
+        divided[i + 3] = alpha;
+      }
+      i += kBytesPerPixel;
+    }
+  }
+
+  return pixbuf;
+}
+
+}  // namespace gtk_util