Add Asset Locations to QStandardPaths::DataLocation

The locations of UI assets are deployed to is being added as a read-only
location under DataLocation.

As such a path is located differently on certain mobile platforms, such
as Android and BlackBerry, having an entry in StandardPaths will make it
easier to write cross-platform code.

Change-Id: I4533c90ed7157725a8604591595b350c7f616723
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: David Faure <david.faure@kdab.com>

src/corelib/io/qstandardpaths.cpp

@@ -177,8 +177,8 @@ QT_BEGIN_NAMESPACE
          \li "~"
          \li "C:/Users/<USER>"
     \row \li DataLocation
-         \li "~/Library/Application Support/<APPNAME>", "/Library/Application Support/<APPNAME>"
+         \li "~/Library/Application Support/<APPNAME>", "/Library/Application Support/<APPNAME>". "<APPDIR>/../Resources"
-         \li "C:/Users/<USER>/AppData/Local/<APPNAME>", "C:/ProgramData/<APPNAME>"
+         \li "C:/Users/<USER>/AppData/Local/<APPNAME>", "C:/ProgramData/<APPNAME>", "<APPDIR>", "<APPDIR>/data"
     \row \li CacheLocation
          \li "~/Library/Caches/<APPNAME>", "/Library/Caches/<APPNAME>"
          \li "C:/Users/<USER>/AppData/Local/<APPNAME>/cache"
@@ -232,7 +232,7 @@ QT_BEGIN_NAMESPACE
          \li "<APPROOT>/data"
          \li "~"
     \row \li DataLocation
-         \li "<APPROOT>/data"
+         \li "<APPROOT>/data", "<APPROOT>/app/native/assets"
          \li "~/.local/share/<APPNAME>", "/usr/local/share/<APPNAME>", "/usr/share/<APPNAME>"
     \row \li CacheLocation
          \li "<APPROOT>/data/Cache"
@@ -260,7 +260,8 @@ QT_BEGIN_NAMESPACE
     In the table above, \c <APPNAME> is usually the organization name, the
     application name, or both, or a unique name generated at packaging.
     Similarly, <APPROOT> is the location where this application is installed
-    (often a sandbox).
+    (often a sandbox). <APPDIR> is the directory containing the application
+    executable.
 
     The paths above should not be relied upon, as they may change according to
     OS configuration, locale, or they may change in future Qt versions.

src/corelib/io/qstandardpaths_blackberry.cpp

@@ -103,10 +103,17 @@ QString QStandardPaths::writableLocation(StandardLocation type)
 
 QStringList QStandardPaths::standardLocations(StandardLocation type)
 {
+    QStringList dirs;
+
     if (type == FontsLocation)
         return QStringList(QLatin1String("/base/usr/fonts"));
 
-    return QStringList(writableLocation(type));
+    if (type == DataLocation)
+        dirs.append(QDir::homePath() + testModeInsert() + QLatin1String("native/assets"));
+
+    const QString localDir = writableLocation(type);
+    dirs.prepend(localDir);
+    return dirs;
 }
 
 QT_END_NAMESPACE

src/corelib/io/qstandardpaths_mac.cpp

@@ -47,6 +47,7 @@
 #include <qcoreapplication.h>
 #endif
 
+#include <CoreFoundation/CoreFoundation.h>
 #include <ApplicationServices/ApplicationServices.h>
 
 QT_BEGIN_NAMESPACE
@@ -184,6 +185,30 @@ QStringList QStandardPaths::standardLocations(StandardLocation type)
             dirs.append(path);
     }
 
+    if (type == DataLocation) {
+        CFBundleRef mainBundle = CFBundleGetMainBundle();
+        if (mainBundle) {
+            CFURLRef bundleUrl = CFBundleCopyBundleURL(mainBundle);
+            CFStringRef cfBundlePath = CFURLCopyPath(bundleUrl);
+            QString bundlePath = QCFString::toQString(cfBundlePath);
+            CFRelease(cfBundlePath);
+            CFRelease(bundleUrl);
+
+            CFURLRef resourcesUrl = CFBundleCopyResourcesDirectoryURL(mainBundle);
+            CFStringRef cfResourcesPath = CFURLCopyPath(bundleUrl);
+            QString resourcesPath = QCFString::toQString(cfResourcesPath);
+            CFRelease(cfResourcesPath);
+            CFRelease(resourcesUrl);
+
+            // Handle bundled vs unbundled executables. CFBundleGetMainBundle() returns
+            // a valid bundle in both cases. CFBundleCopyResourcesDirectoryURL() returns
+            // an absolute path for unbundled executables.
+            if (resourcesPath.startsWith(QLatin1Char('/')))
+                dirs.append(resourcesPath);
+            else
+                dirs.append(bundlePath + resourcesPath);
+        }
+    }
     const QString localDir = writableLocation(type);
     dirs.prepend(localDir);
     return dirs;

src/corelib/io/qstandardpaths_win.cpp

@@ -204,6 +204,12 @@ QStringList QStandardPaths::standardLocations(StandardLocation type)
 #endif
                 }
                 dirs.append(result);
+#ifndef QT_BOOTSTRAPPED
+                if (type != GenericDataLocation) {
+                    dirs.append(QCoreApplication::applicationDirPath());
+                    dirs.append(QCoreApplication::applicationDirPath() + QLatin1String("/data"));
+                }
+#endif
             }
             break;
         default: