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Merge "Fix bug #7381967 Add RTL APIs to ViewParent"

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This commit is contained in:
Fabrice Di Meglio
2013-02-11 22:42:56 +00:00
committed by Android (Google) Code Review
parent e2237ce8ad 9dd4c5c686
commit a66956aa7a
3 changed files with 190 additions and 23 deletions
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67
core/java/android/view/View.java
View File

@@ -1867,6 +1867,12 @@ public class View implements Drawable.Callback, KeyEvent.Callback,
*/
private static final int LAYOUT_DIRECTION_DEFAULT = LAYOUT_DIRECTION_INHERIT;
/**
* Default horizontal layout direction.
* @hide
*/
static final int LAYOUT_DIRECTION_RESOLVED_DEFAULT = LAYOUT_DIRECTION_LTR;
/**
* Indicates that the view is tracking some sort of transient state
* that the app should not need to be aware of, but that the framework
@@ -1915,6 +1921,12 @@ public class View implements Drawable.Callback, KeyEvent.Callback,
*/
private static final int TEXT_DIRECTION_DEFAULT = TEXT_DIRECTION_INHERIT;
/**
* Default resolved text direction
* @hide
*/
static final int TEXT_DIRECTION_RESOLVED_DEFAULT = TEXT_DIRECTION_FIRST_STRONG;
/**
* Bit shift to get the horizontal layout direction. (bits after LAYOUT_DIRECTION_RESOLVED)
* @hide
@@ -1967,7 +1979,7 @@ public class View implements Drawable.Callback, KeyEvent.Callback,
* @hide
*/
static final int PFLAG2_TEXT_DIRECTION_RESOLVED_DEFAULT =
TEXT_DIRECTION_FIRST_STRONG << PFLAG2_TEXT_DIRECTION_RESOLVED_MASK_SHIFT;
TEXT_DIRECTION_RESOLVED_DEFAULT << PFLAG2_TEXT_DIRECTION_RESOLVED_MASK_SHIFT;
/*
* Default text alignment. The text alignment of this View is inherited from its parent.
@@ -2025,6 +2037,12 @@ public class View implements Drawable.Callback, KeyEvent.Callback,
*/
private static final int TEXT_ALIGNMENT_DEFAULT = TEXT_ALIGNMENT_GRAVITY;
/**
* Default resolved text alignment
* @hide
*/
static final int TEXT_ALIGNMENT_RESOLVED_DEFAULT = TEXT_ALIGNMENT_GRAVITY;
/**
* Bit shift to get the horizontal layout direction. (bits after DRAG_HOVERED)
* @hide
@@ -2075,7 +2093,7 @@ public class View implements Drawable.Callback, KeyEvent.Callback,
* Indicates whether if the view text alignment has been resolved to gravity
*/
private static final int PFLAG2_TEXT_ALIGNMENT_RESOLVED_DEFAULT =
TEXT_ALIGNMENT_GRAVITY << PFLAG2_TEXT_ALIGNMENT_RESOLVED_MASK_SHIFT;
TEXT_ALIGNMENT_RESOLVED_DEFAULT << PFLAG2_TEXT_ALIGNMENT_RESOLVED_MASK_SHIFT;
// Accessiblity constants for mPrivateFlags2
@@ -5979,7 +5997,7 @@ public class View implements Drawable.Callback, KeyEvent.Callback,
final int targetSdkVersion = getContext().getApplicationInfo().targetSdkVersion;
if (targetSdkVersion < JELLY_BEAN_MR1) {
mPrivateFlags2 |= PFLAG2_LAYOUT_DIRECTION_RESOLVED;
return LAYOUT_DIRECTION_LTR;
return LAYOUT_DIRECTION_RESOLVED_DEFAULT;
}
return ((mPrivateFlags2 & PFLAG2_LAYOUT_DIRECTION_RESOLVED_RTL) ==
PFLAG2_LAYOUT_DIRECTION_RESOLVED_RTL) ? LAYOUT_DIRECTION_RTL : LAYOUT_DIRECTION_LTR;
@@ -11805,11 +11823,10 @@ public class View implements Drawable.Callback, KeyEvent.Callback,
// later to get the correct resolved value
if (!canResolveLayoutDirection()) return false;
View parent = ((View) mParent);
// Parent has not yet resolved, LTR is still the default
if (!parent.isLayoutDirectionResolved()) return false;
if (!mParent.isLayoutDirectionResolved()) return false;
if (parent.getLayoutDirection() == LAYOUT_DIRECTION_RTL) {
if (mParent.getLayoutDirection() == LAYOUT_DIRECTION_RTL) {
mPrivateFlags2 |= PFLAG2_LAYOUT_DIRECTION_RESOLVED_RTL;
}
break;
@@ -11842,8 +11859,7 @@ public class View implements Drawable.Callback, KeyEvent.Callback,
public boolean canResolveLayoutDirection() {
switch (getRawLayoutDirection()) {
case LAYOUT_DIRECTION_INHERIT:
return (mParent != null) && (mParent instanceof ViewGroup) &&
((ViewGroup) mParent).canResolveLayoutDirection();
return (mParent != null) && mParent.canResolveLayoutDirection();
default:
return true;
}
@@ -11871,8 +11887,9 @@ public class View implements Drawable.Callback, KeyEvent.Callback,
/**
* @return true if layout direction has been resolved.
* @hide
*/
private boolean isLayoutDirectionResolved() {
public boolean isLayoutDirectionResolved() {
return (mPrivateFlags2 & PFLAG2_LAYOUT_DIRECTION_RESOLVED) == PFLAG2_LAYOUT_DIRECTION_RESOLVED;
}
@@ -16905,16 +16922,15 @@ public class View implements Drawable.Callback, KeyEvent.Callback,
return false;
}
View parent = ((View) mParent);
// Parent has not yet resolved, so we still return the default
if (!parent.isTextDirectionResolved()) {
if (!mParent.isTextDirectionResolved()) {
mPrivateFlags2 |= PFLAG2_TEXT_DIRECTION_RESOLVED_DEFAULT;
// Resolution will need to happen again later
return false;
}
// Set current resolved direction to the same value as the parent's one
final int parentResolvedDirection = parent.getTextDirection();
final int parentResolvedDirection = mParent.getTextDirection();
switch (parentResolvedDirection) {
case TEXT_DIRECTION_FIRST_STRONG:
case TEXT_DIRECTION_ANY_RTL:
@@ -16955,12 +16971,13 @@ public class View implements Drawable.Callback, KeyEvent.Callback,
* Check if text direction resolution can be done.
*
* @return true if text direction resolution can be done otherwise return false.
*
* @hide
*/
private boolean canResolveTextDirection() {
public boolean canResolveTextDirection() {
switch (getRawTextDirection()) {
case TEXT_DIRECTION_INHERIT:
return (mParent != null) && (mParent instanceof View) &&
((View) mParent).canResolveTextDirection();
return (mParent != null) && mParent.canResolveTextDirection();
default:
return true;
}
@@ -16990,8 +17007,10 @@ public class View implements Drawable.Callback, KeyEvent.Callback,
/**
* @return true if text direction is resolved.
*
* @hide
*/
private boolean isTextDirectionResolved() {
public boolean isTextDirectionResolved() {
return (mPrivateFlags2 & PFLAG2_TEXT_DIRECTION_RESOLVED) == PFLAG2_TEXT_DIRECTION_RESOLVED;
}
@@ -17114,16 +17133,15 @@ public class View implements Drawable.Callback, KeyEvent.Callback,
// Resolution will need to happen again later
return false;
}
View parent = (View) mParent;
// Parent has not yet resolved, so we still return the default
if (!parent.isTextAlignmentResolved()) {
if (!mParent.isTextAlignmentResolved()) {
mPrivateFlags2 |= PFLAG2_TEXT_ALIGNMENT_RESOLVED_DEFAULT;
// Resolution will need to happen again later
return false;
}
final int parentResolvedTextAlignment = parent.getTextAlignment();
final int parentResolvedTextAlignment = mParent.getTextAlignment();
switch (parentResolvedTextAlignment) {
case TEXT_ALIGNMENT_GRAVITY:
case TEXT_ALIGNMENT_TEXT_START:
@@ -17168,12 +17186,13 @@ public class View implements Drawable.Callback, KeyEvent.Callback,
* Check if text alignment resolution can be done.
*
* @return true if text alignment resolution can be done otherwise return false.
*
* @hide
*/
private boolean canResolveTextAlignment() {
public boolean canResolveTextAlignment() {
switch (getRawTextAlignment()) {
case TEXT_DIRECTION_INHERIT:
return (mParent != null) && (mParent instanceof View) &&
((View) mParent).canResolveTextAlignment();
return (mParent != null) && mParent.canResolveTextAlignment();
default:
return true;
}
@@ -17203,8 +17222,10 @@ public class View implements Drawable.Callback, KeyEvent.Callback,
/**
* @return true if text alignment is resolved.
*
* @hide
*/
private boolean isTextAlignmentResolved() {
public boolean isTextAlignmentResolved() {
return (mPrivateFlags2 & PFLAG2_TEXT_ALIGNMENT_RESOLVED) == PFLAG2_TEXT_ALIGNMENT_RESOLVED;
}

101
core/java/android/view/ViewParent.java
View File

@@ -295,4 +295,105 @@ public interface ViewParent {
* @hide
*/
public void childAccessibilityStateChanged(View child);
/**
* Tells if this view parent can resolve the layout direction.
* See {@link View#setLayoutDirection(int)}
*
* @return True if this view parent can resolve the layout direction.
*
* @hide
*/
public boolean canResolveLayoutDirection();
/**
* Tells if this view parent layout direction is resolved.
* See {@link View#setLayoutDirection(int)}
*
* @return True if this view parent layout direction is resolved.
*
* @hide
*/
public boolean isLayoutDirectionResolved();
/**
* Return this view parent layout direction. See {@link View#getLayoutDirection()}
*
* @return {@link View#LAYOUT_DIRECTION_RTL} if the layout direction is RTL or returns
* {@link View#LAYOUT_DIRECTION_LTR} if the layout direction is not RTL.
*
* @hide
*/
public int getLayoutDirection();
/**
* Tells if this view parent can resolve the text direction.
* See {@link View#setTextDirection(int)}
*
* @return True if this view parent can resolve the text direction.
*
* @hide
*/
public boolean canResolveTextDirection();
/**
* Tells if this view parent text direction is resolved.
* See {@link View#setTextDirection(int)}
*
* @return True if this view parent text direction is resolved.
*
* @hide
*/
public boolean isTextDirectionResolved();
/**
* Return this view parent text direction. See {@link View#getTextDirection()}
*
* @return the resolved text direction. Returns one of:
*
* {@link View#TEXT_DIRECTION_FIRST_STRONG}
* {@link View#TEXT_DIRECTION_ANY_RTL},
* {@link View#TEXT_DIRECTION_LTR},
* {@link View#TEXT_DIRECTION_RTL},
* {@link View#TEXT_DIRECTION_LOCALE}
*
* @hide
*/
public int getTextDirection();
/**
* Tells if this view parent can resolve the text alignment.
* See {@link View#setTextAlignment(int)}
*
* @return True if this view parent can resolve the text alignment.
*
* @hide
*/
public boolean canResolveTextAlignment();
/**
* Tells if this view parent text alignment is resolved.
* See {@link View#setTextAlignment(int)}
*
* @return True if this view parent text alignment is resolved.
*
* @hide
*/
public boolean isTextAlignmentResolved();
/**
* Return this view parent text alignment. See {@link android.view.View#getTextAlignment()}
*
* @return the resolved text alignment. Returns one of:
*
* {@link View#TEXT_ALIGNMENT_GRAVITY},
* {@link View#TEXT_ALIGNMENT_CENTER},
* {@link View#TEXT_ALIGNMENT_TEXT_START},
* {@link View#TEXT_ALIGNMENT_TEXT_END},
* {@link View#TEXT_ALIGNMENT_VIEW_START},
* {@link View#TEXT_ALIGNMENT_VIEW_END}
*
* @hide
*/
public int getTextAlignment();
}

45
core/java/android/view/ViewRootImpl.java
View File

@@ -4829,6 +4829,51 @@ public final class ViewRootImpl implements ViewParent,
postSendWindowContentChangedCallback(child);
}
@Override
public boolean canResolveLayoutDirection() {
return true;
}
@Override
public boolean isLayoutDirectionResolved() {
return true;
}
@Override
public int getLayoutDirection() {
return View.LAYOUT_DIRECTION_RESOLVED_DEFAULT;
}
@Override
public boolean canResolveTextDirection() {
return true;
}
@Override
public boolean isTextDirectionResolved() {
return true;
}
@Override
public int getTextDirection() {
return View.TEXT_DIRECTION_RESOLVED_DEFAULT;
}
@Override
public boolean canResolveTextAlignment() {
return true;
}
@Override
public boolean isTextAlignmentResolved() {
return true;
}
@Override
public int getTextAlignment() {
return View.TEXT_ALIGNMENT_RESOLVED_DEFAULT;
}
private View getCommonPredecessor(View first, View second) {
if (mAttachInfo != null) {
if (mTempHashSet == null) {