[Magnifier-47] Expose magnifier properties (c2e0bee9) · Commits · e / os / android_frameworks_base

api/current.txt

+8 −0

Original line number	Diff line number	Diff line
		@@ -52966,7 +52966,15 @@ package android.widget {
		public final class Magnifier {
		ctor public Magnifier(android.view.View);
		method public void dismiss();
		method public float getCornerRadius();
		method public int getDefaultHorizontalSourceToMagnifierOffset();
		method public int getDefaultVerticalSourceToMagnifierOffset();
		method public float getElevation();
		method public int getHeight();
		method public android.graphics.Point getPosition();
		method public int getSourceHeight();
		method public android.graphics.Point getSourcePosition();
		method public int getSourceWidth();
		method public int getWidth();
		method public float getZoom();
		method public void show(float, float);

api/test-current.txt

+0 −1

Original line number	Diff line number	Diff line
		@@ -1545,7 +1545,6 @@ package android.widget {
		public final class Magnifier {
		method public android.graphics.Bitmap getContent();
		method public static android.graphics.PointF getMagnifierDefaultSize();
		method public android.graphics.Rect getWindowPositionOnScreen();
		method public void setOnOperationCompleteCallback(android.widget.Magnifier.Callback);
		}

core/java/android/widget/Editor.java

+17 −19

Original line number	Diff line number	Diff line
		@@ -4888,13 +4888,14 @@ public class Editor {
		: controller.mEndHandle;
		}

		private final Magnifier.Callback mHandlesVisibilityCallback = new Magnifier.Callback() {
		@Override
		public void onOperationComplete() {
		final Point magnifierTopLeft = mMagnifierAnimator.mMagnifier.getWindowCoords();
		private void updateHandlesVisibility() {
		final Point magnifierTopLeft = mMagnifierAnimator.mMagnifier.getPosition();
		if (magnifierTopLeft == null) {
		return;
		}
		final Rect surfaceInsets =
		mTextView.getViewRootImpl().mWindowAttributes.surfaceInsets;
		magnifierTopLeft.offset(-surfaceInsets.left, -surfaceInsets.top);
		final Rect magnifierRect = new Rect(magnifierTopLeft.x, magnifierTopLeft.y,
		magnifierTopLeft.x + mMagnifierAnimator.mMagnifier.getWidth(),
		magnifierTopLeft.y + mMagnifierAnimator.mMagnifier.getHeight());
		@@ -4904,7 +4905,6 @@ public class Editor {
		otherHandle.setVisible(!handleOverlapsMagnifier(otherHandle, magnifierRect));
		}
		}
		};

		protected final void updateMagnifier(@NonNull final MotionEvent event) {
		if (mMagnifierAnimator == null) {
		@@ -4919,10 +4919,9 @@ public class Editor {
		mRenderCursorRegardlessTiming = true;
		mTextView.invalidateCursorPath();
		suspendBlink();
		mMagnifierAnimator.mMagnifier
		.setOnOperationCompleteCallback(mHandlesVisibilityCallback);

		mMagnifierAnimator.show(showPosInView.x, showPosInView.y);
		updateHandlesVisibility();
		} else {
		dismissMagnifier();
		}
		@@ -4930,7 +4929,6 @@ public class Editor {

		protected final void dismissMagnifier() {
		if (mMagnifierAnimator != null) {
		mMagnifierAnimator.mMagnifier.setOnOperationCompleteCallback(null);
		mMagnifierAnimator.dismiss();
		mRenderCursorRegardlessTiming = false;
		resumeBlink();

core/java/android/widget/Magnifier.java

+131 −46

Original line number	Diff line number	Diff line
		@@ -146,14 +146,22 @@ public final class Magnifier {
		}

		/**
		* Shows the magnifier on the screen.
		* Shows the magnifier on the screen. The method takes the coordinates of the center
		* of the content source going to be magnified and copied to the magnifier. The coordinates
		* are relative to the top left corner of the magnified view. The magnifier will be
		* positioned such that its center will be at the default offset from the center of the source.
		* The default offset can be specified using the method
		* {@link Builder#setDefaultSourceToMagnifierOffset(int, int)}. If the offset should
		* be different across calls to this method, you should consider to use method
		* {@link #show(float, float, float, float)} instead.
		*
		* @param sourceCenterX horizontal coordinate of the center point of the source rectangle that
		* will be magnified and copied to the magnifier, relative to the view.
		* The parameter is clamped such that the copy rectangle fits inside [0, view width].
		* @param sourceCenterY vertical coordinate of the center point of the source rectangle that
		* will be magnified and copied to the magnifier, relative to the view.
		* The parameter is clamped such that the copy rectangle fits inside [0, view height].
		* @param sourceCenterX horizontal coordinate of the source center, relative to the view
		* @param sourceCenterY vertical coordinate of the source center, relative to the view
		*
		* @see Builder#setDefaultSourceToMagnifierOffset(int, int)
		* @see Builder#getDefaultHorizontalSourceToMagnifierOffset()
		* @see Builder#getDefaultVerticalSourceToMagnifierOffset()
		* @see #show(float, float, float, float)
		*/
		public void show(@FloatRange(from = 0) float sourceCenterX,
		@FloatRange(from = 0) float sourceCenterY) {
		@@ -163,21 +171,18 @@ public final class Magnifier {
		}

		/**
		* Shows the magnifier on the screen at a position
		* that is independent from its content position.
		* Shows the magnifier on the screen at a position that is independent from its content
		* position. The first two arguments represent the coordinates of the center of the
		* content source going to be magnified and copied to the magnifier. The last two arguments
		* represent the coordinates of the center of the magnifier itself. All four coordinates
		* are relative to the top left corner of the magnified view. If you consider using this
		* method such that the offset between the source center and the magnifier center coordinates
		* remains constant, you should consider using method {@link #show(float, float)} instead.
		*
		* @param sourceCenterX horizontal coordinate of the center point of the source rectangle that
		* will be magnified and copied to the magnifier, relative to the view.
		* The parameter is clamped such that the copy rectangle fits inside [0, view width].
		* @param sourceCenterY vertical coordinate of the center point of the source rectangle that
		* will be magnified and copied to the magnifier, relative to the view.
		* The parameter is clamped such that the copy rectangle fits inside [0, view height].
		* @param magnifierCenterX horizontal coordinate of the center point of the magnifier window
		* relative to the view. As the magnifier can be arbitrarily positioned, this can be
		* negative or larger than the view width.
		* @param magnifierCenterY vertical coordinate of the center point of the magnifier window
		* relative to the view. As the magnifier can be arbitrarily positioned, this can be
		* negative or larger than the view height.
		* @param sourceCenterX horizontal coordinate of the source center relative to the view
		* @param sourceCenterY vertical coordinate of the source center, relative to the view
		* @param magnifierCenterX horizontal coordinate of the magnifier center, relative to the view
		* @param magnifierCenterY vertical coordinate of the magnifier center, relative to the view
		*/
		public void show(@FloatRange(from = 0) float sourceCenterX,
		@FloatRange(from = 0) float sourceCenterY,
		@@ -241,8 +246,9 @@ public final class Magnifier {
		}

		/**
		* Forces the magnifier to update its content. It uses the previous coordinates passed to
		* {@link #show(float, float)}. This only happens if the magnifier is currently showing.
		* Asks the magnifier to update its content. It uses the previous coordinates passed to
		* {@link #show(float, float)} or {@link #show(float, float, float, float)}. The
		* method only has effect if the magnifier is currently showing.
		*/
		public void update() {
		if (mWindow != null) {
		@@ -255,41 +261,137 @@ public final class Magnifier {

		/**
		* @return the width of the magnifier window, in pixels
		* @see Magnifier.Builder#setSize(int, int)
		*/
		@Px
		public int getWidth() {
		return mWindowWidth;
		}

		/**
		* @return the height of the magnifier window, in pixels
		* @see Magnifier.Builder#setSize(int, int)
		*/
		@Px
		public int getHeight() {
		return mWindowHeight;
		}

		/**
		* @return the initial width of the content magnified and copied to the magnifier, in pixels
		* @see Magnifier.Builder#setSize(int, int)
		* @see Magnifier.Builder#setZoom(float)
		*/
		@Px
		public int getSourceWidth() {
		return mSourceWidth;
		}

		/**
		* @return the initial height of the content magnified and copied to the magnifier, in pixels
		* @see Magnifier.Builder#setSize(int, int)
		* @see Magnifier.Builder#setZoom(float)
		*/
		@Px
		public int getSourceHeight() {
		return mSourceHeight;
		}

		/**
		* Returns the zoom to be applied to the magnified view region copied to the magnifier.
		* If the zoom is x and the magnifier window size is (width, height), the original size
		* of the content being magnified will be (width / x, height / x).
		* @return the zoom applied to the content
		* @see Magnifier.Builder#setZoom(float)
		*/
		public float getZoom() {
		return mZoom;
		}

		/**
		* @hide
		* @return the elevation set for the magnifier window, in pixels
		* @see Magnifier.Builder#setElevation(float)
		*/
		@Px
		public float getElevation() {
		return mWindowElevation;
		}

		/**
		* @return the corner radius of the magnifier window, in pixels
		* @see Magnifier.Builder#setCornerRadius(float)
		*/
		@Px
		public float getCornerRadius() {
		return mWindowCornerRadius;
		}

		/**
		* Returns the horizontal offset, in pixels, to be applied to the source center position
		* to obtain the magnifier center position when {@link #show(float, float)} is called.
		* The value is ignored when {@link #show(float, float, float, float)} is used instead.
		*
		* @return the default horizontal offset between the source center and the magnifier
		* @see Magnifier.Builder#setDefaultSourceToMagnifierOffset(int, int)
		* @see Magnifier#show(float, float)
		*/
		@Px
		public int getDefaultHorizontalSourceToMagnifierOffset() {
		return mDefaultHorizontalSourceToMagnifierOffset;
		}

		/**
		* Returns the vertical offset, in pixels, to be applied to the source center position
		* to obtain the magnifier center position when {@link #show(float, float)} is called.
		* The value is ignored when {@link #show(float, float, float, float)} is used instead.
		*
		* @return the top left coordinates of the magnifier, relative to the parent window
		* @return the default vertical offset between the source center and the magnifier
		* @see Magnifier.Builder#setDefaultSourceToMagnifierOffset(int, int)
		* @see Magnifier#show(float, float)
		*/
		@Px
		public int getDefaultVerticalSourceToMagnifierOffset() {
		return mDefaultVerticalSourceToMagnifierOffset;
		}

		/**
		* Returns the top left coordinates of the magnifier, relative to the surface of the
		* main application window. They will be determined by the coordinates of the last
		* {@link #show(float, float)} or {@link #show(float, float, float, float)} call, adjusted
		* to take into account any potential clamping behavior. The method can be used immediately
		* after a #show call to find out where the magnifier will be positioned. However, the
		* position of the magnifier will not be updated in the same frame due to the async
		* copying of the content copying and of the magnifier rendering.
		* The method will return {@code null} if #show has not yet been called, or if the last
		* operation performed was a #dismiss.
		*
		* @return the top left coordinates of the magnifier
		*/
		@Nullable
		public Point getWindowCoords() {
		public Point getPosition() {
		if (mWindow == null) {
		return null;
		}
		final Rect surfaceInsets = mView.getViewRootImpl().mWindowAttributes.surfaceInsets;
		return new Point(mWindow.mLastDrawContentPositionX - surfaceInsets.left,
		mWindow.mLastDrawContentPositionY - surfaceInsets.top);
		return new Point(getCurrentClampedWindowCoordinates());
		}

		/**
		* Returns the top left coordinates of the magnifier source (i.e. the view region going to
		* be magnified and copied to the magnifier), relative to the surface the content is copied
		* from. The content will be copied:
		* - if the magnified view is a {@link SurfaceView}, from the surface backing it
		* - otherwise, from the surface of the main application window
		* The method will return {@code null} if #show has not yet been called, or if the last
		* operation performed was a #dismiss.
		*
		* @return the top left coordinates of the magnifier source
		*/
		@Nullable
		public Point getSourcePosition() {
		if (mWindow == null) {
		return null;
		}
		return new Point(mPixelCopyRequestRect.left, mPixelCopyRequestRect.top);
		}

		/**
		@@ -917,23 +1019,6 @@ public final class Magnifier {
		}
		}

		/**
		* @return the position of the magnifier window relative to the screen
		*
		* @hide
		*/
		@TestApi
		public Rect getWindowPositionOnScreen() {
		final int[] viewLocationOnScreen = new int[2];
		mView.getLocationOnScreen(viewLocationOnScreen);
		final int[] viewLocationInSurface = new int[2];
		mView.getLocationInSurface(viewLocationInSurface);

		final int left = mWindowCoords.x + viewLocationOnScreen[0] - viewLocationInSurface[0];
		final int top = mWindowCoords.y + viewLocationOnScreen[1] - viewLocationInSurface[1];
		return new Rect(left, top, left + mWindowWidth, top + mWindowHeight);
		}

		/**
		* @return the size of the magnifier window in dp
		*