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Refactor of Launcher drag and drop to use a DragObject

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-> DragObject contains a bunch of parameters instead of pssing
   them each individually

Change-Id: I709cf320fe4234d71e19325d5c761dd9a9bba405
This commit is contained in:
Adam Cohen
2011-05-24 14:07:08 -07:00
parent 7d7207f6bc
commit cb3382b1bf
9 changed files with 150 additions and 192 deletions
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44
src/com/android/launcher2/DropTarget.java
View File

@@ -23,6 +23,30 @@ import android.graphics.Rect;
*
*/
public interface DropTarget {
class DragObject {
public int x = -1;
public int y = -1;
/** X offset from the upper-left corner of the cell to where we touched. */
public int xOffset = -1;
/** Y offset from the upper-left corner of the cell to where we touched. */
public int yOffset = -1;
/** The view that moves around while you drag. */
public DragView dragView = null;
/** The data associated with the object being dragged */
public Object dragInfo = null;
/** Where the drag originated */
public DragSource dragSource = null;
public DragObject() {
}
}
/**
* Used to temporarily disable certain drop targets
*
@@ -44,17 +68,13 @@ public interface DropTarget {
* @param dragInfo Data associated with the object being dragged
*
*/
void onDrop(DragSource source, int x, int y, int xOffset, int yOffset,
DragView dragView, Object dragInfo);
void onDragEnter(DragSource source, int x, int y, int xOffset, int yOffset,
DragView dragView, Object dragInfo);
void onDrop(DragObject dragObject);
void onDragOver(DragSource source, int x, int y, int xOffset, int yOffset,
DragView dragView, Object dragInfo);
void onDragEnter(DragObject dragObject);
void onDragExit(DragSource source, int x, int y, int xOffset, int yOffset,
DragView dragView, Object dragInfo);
void onDragOver(DragObject dragObject);
void onDragExit(DragObject dragObject);
/**
* Allows a DropTarget to delegate drag and drop events to another object.
@@ -73,8 +93,7 @@ public interface DropTarget {
*
* @return The DropTarget to delegate to, or null to not delegate to another object.
*/
DropTarget getDropTargetDelegate(DragSource source, int x, int y, int xOffset, int yOffset,
DragView dragView, Object dragInfo);
DropTarget getDropTargetDelegate(DragObject dragObject);
/**
* Check if a drop action can occur at, or near, the requested location.
@@ -91,8 +110,7 @@ public interface DropTarget {
* @param dragInfo Data associated with the object being dragged
* @return True if the drop will be accepted, false otherwise.
*/
boolean acceptDrop(DragSource source, int x, int y, int xOffset, int yOffset,
DragView dragView, Object dragInfo);
boolean acceptDrop(DragObject dragObject);
// These methods are implemented in Views
void getHitRect(Rect outRect);