Wallpaper manager backend APIs

BUG=118684
TEST=none


Review URL: https://chromiumcodereview.appspot.com/10754014

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@148400 0039d316-1c4b-4281-b951-d872f2087c98

2 files changed, 21 insertions, 0 deletions

diff --git a/ash/desktop_background/desktop_background_resources.cc b/ash/desktop_background/desktop_background_resources.cc
index 64392e5..01f7f46 100644
--- a/ash/desktop_background/desktop_background_resources.cc
+++ b/ash/desktop_background/desktop_background_resources.cc
@@ -12,6 +12,14 @@
 
 namespace {
 
+// Keeps in sync (same order) with WallpaperLayout enum in header file.
+const char* kWallpaperLayoutArrays[] = {
+    "CENTER",
+    "CENTER_CROPPED",
+    "STRETCH",
+    "TILE"
+};
+
 const ash::WallpaperInfo kDefaultWallpapers[] = {
 #if !defined(GOOGLE_CHROME_BUILD)
     {
@@ -221,6 +229,7 @@ const ash::WallpaperInfo kDefaultWallpapers[] = {
     },
 };
 
+const int kWallpaperLayoutCount = arraysize(kWallpaperLayoutArrays);
 const int kDefaultWallpaperCount = arraysize(kDefaultWallpapers);
 const int kInvalidWallpaperIndex = -1;
 const int kSolidColorIndex = -2;
@@ -258,6 +267,15 @@ int GetInvalidWallpaperIndex() {
   return kInvalidWallpaperIndex;
 }
 
+WallpaperLayout GetLayoutEnum(const std::string& layout) {
+  for (int i = 0; i < kWallpaperLayoutCount; i++) {
+    if (layout.compare(kWallpaperLayoutArrays[i]) == 0)
+      return static_cast<WallpaperLayout>(i);
+  }
+  // Default to use CENTER layout.
+  return CENTER;
+}
+
 int GetNextWallpaperIndex(int index) {
   DCHECK(kLastRandomWallpaperIndex < kDefaultWallpaperCount);
   return (index + 1) % (kLastRandomWallpaperIndex + 1);
diff --git a/ash/desktop_background/desktop_background_resources.h b/ash/desktop_background/desktop_background_resources.h
index 7c14ce6..54cdf55 100644
--- a/ash/desktop_background/desktop_background_resources.h
+++ b/ash/desktop_background/desktop_background_resources.h
@@ -5,6 +5,8 @@
 #ifndef ASH_DESKTOP_BACKGROUND_DESKTOP_BACKGROUND_RESOURCES_H_
 #define ASH_DESKTOP_BACKGROUND_DESKTOP_BACKGROUND_RESOURCES_H_
 
+#include <string>
+
 #include "ash/ash_export.h"
 #include "third_party/skia/include/core/SkColor.h"
 
@@ -32,6 +34,7 @@ const SkColor kLoginWallpaperColor = 0xFEFEFE;
 ASH_EXPORT int GetDefaultWallpaperIndex();
 ASH_EXPORT int GetGuestWallpaperIndex();
 ASH_EXPORT int GetInvalidWallpaperIndex();
+ASH_EXPORT WallpaperLayout GetLayoutEnum(const std::string& layout);
 ASH_EXPORT int GetNextWallpaperIndex(int index);
 ASH_EXPORT int GetSolidColorIndex();
 ASH_EXPORT int GetWallpaperCount();