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Disallow downgrade of bundled home apps

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Bug 14162565

Change-Id: I754721178722edbf0765039bc9669ed24b92633c
This commit is contained in:
Christopher Tate
2014-08-15 09:20:46 -07:00
parent 23c76e38ef
commit 568eeca569
1 changed files with 22 additions and 13 deletions
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35
src/com/android/settings/applications/InstalledAppDetails.java
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@@ -347,11 +347,12 @@ public class InstalledAppDetails extends Fragment
private void initUninstallButtons() {
mUpdatedSysApp = (mAppEntry.info.flags & ApplicationInfo.FLAG_UPDATED_SYSTEM_APP) != 0;
final boolean isBundled = (mAppEntry.info.flags & ApplicationInfo.FLAG_SYSTEM) != 0;
boolean enabled = true;
if (mUpdatedSysApp) {
mUninstallButton.setText(R.string.app_factory_reset);
boolean showSpecialDisable = false;
if ((mAppEntry.info.flags & ApplicationInfo.FLAG_SYSTEM) != 0) {
if (isBundled) {
showSpecialDisable = handleDisableable(mSpecialDisableButton);
mSpecialDisableButton.setOnClickListener(this);
}
@@ -361,7 +362,7 @@ public class InstalledAppDetails extends Fragment
mMoreControlButtons.setVisibility(showSpecialDisable ? View.VISIBLE : View.GONE);
} else {
mMoreControlButtons.setVisibility(View.GONE);
if ((mAppEntry.info.flags & ApplicationInfo.FLAG_SYSTEM) != 0) {
if (isBundled) {
enabled = handleDisableable(mUninstallButton);
} else if ((mPackageInfo.applicationInfo.flags
& ApplicationInfo.FLAG_INSTALLED) == 0
@@ -380,19 +381,27 @@ public class InstalledAppDetails extends Fragment
enabled = false;
}
// If this is the default (or only) home app, suppress uninstall (even if
// we still think it should be allowed for other reasons)
// Home apps need special handling. Bundled ones we don't risk downgrading
// because that can interfere with home-key resolution. Furthermore, we
// can't allow uninstallation of the only home app, and we don't want to
// allow uninstallation of an explicitly preferred one -- the user can go
// to Home settings and pick a different one, after which we'll permit
// uninstallation of the now-not-default one.
if (enabled && mHomePackages.contains(mPackageInfo.packageName)) {
ArrayList<ResolveInfo> homeActivities = new ArrayList<ResolveInfo>();
ComponentName currentDefaultHome = mPm.getHomeActivities(homeActivities);
if (currentDefaultHome == null) {
// No preferred default, so permit uninstall only when
// there is more than one candidate
enabled = (mHomePackages.size() > 1);
if (isBundled) {
enabled = false;
} else {
// There is an explicit default home app -- forbid uninstall of
// that one, but permit it for installed-but-inactive ones.
enabled = !mPackageInfo.packageName.equals(currentDefaultHome.getPackageName());
ArrayList<ResolveInfo> homeActivities = new ArrayList<ResolveInfo>();
ComponentName currentDefaultHome = mPm.getHomeActivities(homeActivities);
if (currentDefaultHome == null) {
// No preferred default, so permit uninstall only when
// there is more than one candidate
enabled = (mHomePackages.size() > 1);
} else {
// There is an explicit default home app -- forbid uninstall of
// that one, but permit it for installed-but-inactive ones.
enabled = !mPackageInfo.packageName.equals(currentDefaultHome.getPackageName());
}
}
}