Merge "Provides actions for editing window magnifier" into udc-qpr-dev
diff --git a/packages/SystemUI/res/values/dimens.xml b/packages/SystemUI/res/values/dimens.xml
index 3ada7c2..34b08b4 100644
--- a/packages/SystemUI/res/values/dimens.xml
+++ b/packages/SystemUI/res/values/dimens.xml
@@ -1231,6 +1231,7 @@
     <dimen name="magnification_setting_image_button_open_in_full_padding_horizontal">28dp</dimen>
     <dimen name="magnification_setting_drag_corner_radius">28dp</dimen>
     <dimen name="magnification_setting_drag_size">56dp</dimen>
+    <fraction name="magnification_resize_window_size_amount">10%</fraction>
 
     <!-- Seekbar with icon buttons -->
     <dimen name="seekbar_icon_size">24dp</dimen>
diff --git a/packages/SystemUI/res/values/ids.xml b/packages/SystemUI/res/values/ids.xml
index 9957429..2fa895b 100644
--- a/packages/SystemUI/res/values/ids.xml
+++ b/packages/SystemUI/res/values/ids.xml
@@ -172,6 +172,10 @@
     <item type="id" name="accessibility_action_move_right"/>
     <item type="id" name="accessibility_action_move_up"/>
     <item type="id" name="accessibility_action_move_down"/>
+    <item type="id" name="accessibility_action_increase_window_width"/>
+    <item type="id" name="accessibility_action_decrease_window_width"/>
+    <item type="id" name="accessibility_action_increase_window_height"/>
+    <item type="id" name="accessibility_action_decrease_window_height"/>
 
     <!-- Accessibility actions for Accessibility floating menu. -->
     <item type="id" name="action_move_top_left"/>
diff --git a/packages/SystemUI/res/values/strings.xml b/packages/SystemUI/res/values/strings.xml
index 275e5d8..3ca24af 100644
--- a/packages/SystemUI/res/values/strings.xml
+++ b/packages/SystemUI/res/values/strings.xml
@@ -2398,6 +2398,16 @@
     <string name="accessibility_control_move_left">Move left</string>
     <!-- Action in accessibility menu to move the magnification window right. [CHAR LIMIT=30] -->
     <string name="accessibility_control_move_right">Move right</string>
+
+    <!-- Action in accessibility menu to increase the magnification window width. [CHAR LIMIT=NONE] -->
+    <string name="accessibility_control_increase_window_width">Increase width of magnifier</string>
+    <!-- Action in accessibility menu to decrease the magnification window width. [CHAR LIMIT=NONE] -->
+    <string name="accessibility_control_decrease_window_width">Decrease width of magnifier</string>
+    <!-- Action in accessibility menu to increase the magnification window height. [CHAR LIMIT=NONE] -->
+    <string name="accessibility_control_increase_window_height">Increase height of magnifier</string>
+    <!-- Action in accessibility menu to decrease the magnification window height. [CHAR LIMIT=NONE] -->
+    <string name="accessibility_control_decrease_window_height">Decrease height of magnifier</string>
+
     <!-- Content description for magnification mode switch. [CHAR LIMIT=NONE] -->
     <string name="magnification_mode_switch_description">Magnification switch</string>
     <!-- A11y state description for magnification mode switch that device is in full-screen mode. [CHAR LIMIT=NONE] -->
diff --git a/packages/SystemUI/src/com/android/systemui/accessibility/WindowMagnificationController.java b/packages/SystemUI/src/com/android/systemui/accessibility/WindowMagnificationController.java
index 28d59c2..c5887d3 100644
--- a/packages/SystemUI/src/com/android/systemui/accessibility/WindowMagnificationController.java
+++ b/packages/SystemUI/src/com/android/systemui/accessibility/WindowMagnificationController.java
@@ -26,6 +26,7 @@
 
 import android.animation.ObjectAnimator;
 import android.animation.PropertyValuesHolder;
+import android.annotation.MainThread;
 import android.annotation.NonNull;
 import android.annotation.Nullable;
 import android.annotation.UiContext;
@@ -703,6 +704,18 @@
     }
 
     /**
+     * Sets the window frame size with given width and height in pixels without changing the
+     * window center.
+     *
+     * @param width the window frame width in pixels
+     * @param height the window frame height in pixels.
+     */
+    @MainThread
+    private void setMagnificationFrameSize(int width, int height) {
+        setWindowSize(width + 2 * mMirrorSurfaceMargin, height + 2 * mMirrorSurfaceMargin);
+    }
+
+    /**
      * Sets the window size with given width and height in pixels without changing the
      * window center. The width or the height will be clamped in the range
      * [{@link #mMinWindowSize}, screen width or height].
@@ -1466,19 +1479,50 @@
                     AccessibilityAction.ACTION_CLICK.getId(), getClickAccessibilityActionLabel());
             info.addAction(clickAction);
             info.setClickable(true);
+
             info.addAction(
                     new AccessibilityAction(R.id.accessibility_action_zoom_in,
                             mContext.getString(R.string.accessibility_control_zoom_in)));
             info.addAction(new AccessibilityAction(R.id.accessibility_action_zoom_out,
                     mContext.getString(R.string.accessibility_control_zoom_out)));
-            info.addAction(new AccessibilityAction(R.id.accessibility_action_move_up,
-                    mContext.getString(R.string.accessibility_control_move_up)));
-            info.addAction(new AccessibilityAction(R.id.accessibility_action_move_down,
-                    mContext.getString(R.string.accessibility_control_move_down)));
-            info.addAction(new AccessibilityAction(R.id.accessibility_action_move_left,
-                    mContext.getString(R.string.accessibility_control_move_left)));
-            info.addAction(new AccessibilityAction(R.id.accessibility_action_move_right,
-                    mContext.getString(R.string.accessibility_control_move_right)));
+
+            if (!mEditSizeEnable) {
+                info.addAction(new AccessibilityAction(R.id.accessibility_action_move_up,
+                        mContext.getString(R.string.accessibility_control_move_up)));
+                info.addAction(new AccessibilityAction(R.id.accessibility_action_move_down,
+                        mContext.getString(R.string.accessibility_control_move_down)));
+                info.addAction(new AccessibilityAction(R.id.accessibility_action_move_left,
+                        mContext.getString(R.string.accessibility_control_move_left)));
+                info.addAction(new AccessibilityAction(R.id.accessibility_action_move_right,
+                        mContext.getString(R.string.accessibility_control_move_right)));
+            } else {
+                if ((mMagnificationFrame.width() + 2 * mMirrorSurfaceMargin)
+                        < mWindowBounds.width()) {
+                    info.addAction(new AccessibilityAction(
+                            R.id.accessibility_action_increase_window_width,
+                            mContext.getString(
+                                    R.string.accessibility_control_increase_window_width)));
+                }
+                if ((mMagnificationFrame.height() + 2 * mMirrorSurfaceMargin)
+                        < mWindowBounds.height()) {
+                    info.addAction(new AccessibilityAction(
+                            R.id.accessibility_action_increase_window_height,
+                            mContext.getString(
+                                    R.string.accessibility_control_increase_window_height)));
+                }
+                if ((mMagnificationFrame.width() + 2 * mMirrorSurfaceMargin) > mMinWindowSize) {
+                    info.addAction(new AccessibilityAction(
+                            R.id.accessibility_action_decrease_window_width,
+                            mContext.getString(
+                                    R.string.accessibility_control_decrease_window_width)));
+                }
+                if ((mMagnificationFrame.height() + 2 * mMirrorSurfaceMargin) > mMinWindowSize) {
+                    info.addAction(new AccessibilityAction(
+                            R.id.accessibility_action_decrease_window_height,
+                            mContext.getString(
+                                    R.string.accessibility_control_decrease_window_height)));
+                }
+            }
 
             info.setContentDescription(mContext.getString(R.string.magnification_window_title));
             info.setStateDescription(formatStateDescription(getScale()));
@@ -1493,6 +1537,11 @@
         }
 
         private boolean performA11yAction(int action) {
+            final float changeWindowSizeAmount = mContext.getResources().getFraction(
+                    R.fraction.magnification_resize_window_size_amount,
+                    /* base= */ 1,
+                    /* pbase= */ 1);
+
             if (action == AccessibilityAction.ACTION_CLICK.getId()) {
                 if (mEditSizeEnable) {
                     // When edit mode is enabled, click the magnifier to exit edit mode.
@@ -1514,9 +1563,26 @@
                 move(-mSourceBounds.width(), 0);
             } else if (action == R.id.accessibility_action_move_right) {
                 move(mSourceBounds.width(), 0);
+            } else if (action == R.id.accessibility_action_increase_window_width) {
+                int newFrameWidth =
+                        (int) (mMagnificationFrame.width() * (1 + changeWindowSizeAmount));
+                setMagnificationFrameSize(newFrameWidth, mMagnificationFrame.height());
+            } else if (action == R.id.accessibility_action_increase_window_height) {
+                int newFrameHeight =
+                        (int) (mMagnificationFrame.height() * (1 + changeWindowSizeAmount));
+                setMagnificationFrameSize(mMagnificationFrame.width(), newFrameHeight);
+            } else if (action == R.id.accessibility_action_decrease_window_width) {
+                int newFrameWidth =
+                        (int) (mMagnificationFrame.width() * (1 - changeWindowSizeAmount));
+                setMagnificationFrameSize(newFrameWidth, mMagnificationFrame.height());
+            } else if (action == R.id.accessibility_action_decrease_window_height) {
+                int newFrameHeight =
+                        (int) (mMagnificationFrame.height() * (1 - changeWindowSizeAmount));
+                setMagnificationFrameSize(mMagnificationFrame.width(), newFrameHeight);
             } else {
                 return false;
             }
+
             mWindowMagnifierCallback.onAccessibilityActionPerformed(mDisplayId);
             return true;
         }
@@ -1527,4 +1593,5 @@
                     mDisplayId, scale, /* updatePersistence= */ true);
         }
     }
+
 }
\ No newline at end of file
diff --git a/packages/SystemUI/tests/src/com/android/systemui/accessibility/WindowMagnificationControllerTest.java b/packages/SystemUI/tests/src/com/android/systemui/accessibility/WindowMagnificationControllerTest.java
index e96ad87..7ac8092 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/accessibility/WindowMagnificationControllerTest.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/accessibility/WindowMagnificationControllerTest.java
@@ -712,6 +712,245 @@
     }
 
     @Test
+    public void windowWidthIsNotMax_performA11yActionIncreaseWidth_windowWidthIncreased() {
+        final Rect windowBounds = mWindowManager.getCurrentWindowMetrics().getBounds();
+        final int startingWidth = (int) (windowBounds.width() * 0.8);
+        final int startingHeight = (int) (windowBounds.height() * 0.8);
+        final float changeWindowSizeAmount = mContext.getResources().getFraction(
+                R.fraction.magnification_resize_window_size_amount,
+                /* base= */ 1,
+                /* pbase= */ 1);
+
+        mInstrumentation.runOnMainSync(() -> {
+            mWindowMagnificationController.enableWindowMagnificationInternal(Float.NaN, Float.NaN,
+                    Float.NaN);
+            mWindowMagnificationController.setWindowSize(startingWidth, startingHeight);
+            mWindowMagnificationController.setEditMagnifierSizeMode(true);
+        });
+
+        final View mirrorView = mWindowManager.getAttachedView();
+        final AtomicInteger actualWindowHeight = new AtomicInteger();
+        final AtomicInteger actualWindowWidth = new AtomicInteger();
+
+        mInstrumentation.runOnMainSync(
+                () -> {
+                    mirrorView.performAccessibilityAction(
+                            R.id.accessibility_action_increase_window_width, null);
+                    actualWindowHeight.set(mWindowManager.getLayoutParamsFromAttachedView().height);
+                    actualWindowWidth.set(mWindowManager.getLayoutParamsFromAttachedView().width);
+                });
+
+        final int mirrorSurfaceMargin = mResources.getDimensionPixelSize(
+                R.dimen.magnification_mirror_surface_margin);
+        // Window width includes the magnifier frame and the margin. Increasing the window size
+        // will be increasing the amount of the frame size only.
+        int newWindowWidth =
+                (int) ((startingWidth - 2 * mirrorSurfaceMargin) * (1 + changeWindowSizeAmount))
+                        + 2 * mirrorSurfaceMargin;
+        assertEquals(newWindowWidth, actualWindowWidth.get());
+        assertEquals(startingHeight, actualWindowHeight.get());
+    }
+
+    @Test
+    public void windowHeightIsNotMax_performA11yActionIncreaseHeight_windowHeightIncreased() {
+        final Rect windowBounds = mWindowManager.getCurrentWindowMetrics().getBounds();
+        final int startingWidth = (int) (windowBounds.width() * 0.8);
+        final int startingHeight = (int) (windowBounds.height() * 0.8);
+        final float changeWindowSizeAmount = mContext.getResources().getFraction(
+                R.fraction.magnification_resize_window_size_amount,
+                /* base= */ 1,
+                /* pbase= */ 1);
+
+        mInstrumentation.runOnMainSync(() -> {
+            mWindowMagnificationController.enableWindowMagnificationInternal(Float.NaN, Float.NaN,
+                    Float.NaN);
+            mWindowMagnificationController.setWindowSize(startingWidth, startingHeight);
+            mWindowMagnificationController.setEditMagnifierSizeMode(true);
+        });
+
+        final View mirrorView = mWindowManager.getAttachedView();
+        final AtomicInteger actualWindowHeight = new AtomicInteger();
+        final AtomicInteger actualWindowWidth = new AtomicInteger();
+
+        mInstrumentation.runOnMainSync(
+                () -> {
+                    mirrorView.performAccessibilityAction(
+                            R.id.accessibility_action_increase_window_height, null);
+                    actualWindowHeight.set(mWindowManager.getLayoutParamsFromAttachedView().height);
+                    actualWindowWidth.set(mWindowManager.getLayoutParamsFromAttachedView().width);
+                });
+
+        final int mirrorSurfaceMargin = mResources.getDimensionPixelSize(
+                R.dimen.magnification_mirror_surface_margin);
+        // Window height includes the magnifier frame and the margin. Increasing the window size
+        // will be increasing the amount of the frame size only.
+        int newWindowHeight =
+                (int) ((startingHeight - 2 * mirrorSurfaceMargin) * (1 + changeWindowSizeAmount))
+                        + 2 * mirrorSurfaceMargin;
+        assertEquals(startingWidth, actualWindowWidth.get());
+        assertEquals(newWindowHeight, actualWindowHeight.get());
+    }
+
+    @Test
+    public void windowWidthIsMax_noIncreaseWindowWidthA11yAction() {
+        final Rect windowBounds = mWindowManager.getCurrentWindowMetrics().getBounds();
+        final int startingWidth = windowBounds.width();
+        final int startingHeight = windowBounds.height();
+
+        mInstrumentation.runOnMainSync(() -> {
+            mWindowMagnificationController.enableWindowMagnificationInternal(Float.NaN, Float.NaN,
+                    Float.NaN);
+            mWindowMagnificationController.setWindowSize(startingWidth, startingHeight);
+            mWindowMagnificationController.setEditMagnifierSizeMode(true);
+        });
+
+        final View mirrorView = mWindowManager.getAttachedView();
+        final AccessibilityNodeInfo accessibilityNodeInfo =
+                mirrorView.createAccessibilityNodeInfo();
+        assertFalse(accessibilityNodeInfo.getActionList().contains(
+                new AccessibilityAction(R.id.accessibility_action_increase_window_width, null)));
+    }
+
+    @Test
+    public void windowHeightIsMax_noIncreaseWindowHeightA11yAction() {
+        final Rect windowBounds = mWindowManager.getCurrentWindowMetrics().getBounds();
+        final int startingWidth = windowBounds.width();
+        final int startingHeight = windowBounds.height();
+
+        mInstrumentation.runOnMainSync(() -> {
+            mWindowMagnificationController.enableWindowMagnificationInternal(Float.NaN, Float.NaN,
+                    Float.NaN);
+            mWindowMagnificationController.setWindowSize(startingWidth, startingHeight);
+            mWindowMagnificationController.setEditMagnifierSizeMode(true);
+        });
+
+        final View mirrorView = mWindowManager.getAttachedView();
+        final AccessibilityNodeInfo accessibilityNodeInfo =
+                mirrorView.createAccessibilityNodeInfo();
+        assertFalse(accessibilityNodeInfo.getActionList().contains(
+                new AccessibilityAction(R.id.accessibility_action_increase_window_height, null)));
+    }
+
+    @Test
+    public void windowWidthIsNotMin_performA11yActionDecreaseWidth_windowWidthDecreased() {
+        int mMinWindowSize = mResources.getDimensionPixelSize(
+                com.android.internal.R.dimen.accessibility_window_magnifier_min_size);
+        final int startingSize = (int) (mMinWindowSize * 1.1);
+        final float changeWindowSizeAmount = mContext.getResources().getFraction(
+                R.fraction.magnification_resize_window_size_amount,
+                /* base= */ 1,
+                /* pbase= */ 1);
+        mInstrumentation.runOnMainSync(() -> {
+            mWindowMagnificationController.enableWindowMagnificationInternal(Float.NaN, Float.NaN,
+                    Float.NaN);
+            mWindowMagnificationController.setWindowSize(startingSize, startingSize);
+            mWindowMagnificationController.setEditMagnifierSizeMode(true);
+        });
+
+        final View mirrorView = mWindowManager.getAttachedView();
+        final AtomicInteger actualWindowHeight = new AtomicInteger();
+        final AtomicInteger actualWindowWidth = new AtomicInteger();
+
+        mInstrumentation.runOnMainSync(
+                () -> {
+                    mirrorView.performAccessibilityAction(
+                            R.id.accessibility_action_decrease_window_width, null);
+                    actualWindowHeight.set(mWindowManager.getLayoutParamsFromAttachedView().height);
+                    actualWindowWidth.set(mWindowManager.getLayoutParamsFromAttachedView().width);
+                });
+
+        final int mirrorSurfaceMargin = mResources.getDimensionPixelSize(
+                R.dimen.magnification_mirror_surface_margin);
+        // Window width includes the magnifier frame and the margin. Decreasing the window size
+        // will be decreasing the amount of the frame size only.
+        int newWindowWidth =
+                (int) ((startingSize - 2 * mirrorSurfaceMargin) * (1 - changeWindowSizeAmount))
+                        + 2 * mirrorSurfaceMargin;
+        assertEquals(newWindowWidth, actualWindowWidth.get());
+        assertEquals(startingSize, actualWindowHeight.get());
+    }
+
+    @Test
+    public void windowHeightIsNotMin_performA11yActionDecreaseHeight_windowHeightDecreased() {
+        int mMinWindowSize = mResources.getDimensionPixelSize(
+                com.android.internal.R.dimen.accessibility_window_magnifier_min_size);
+        final int startingSize = (int) (mMinWindowSize * 1.1);
+        final float changeWindowSizeAmount = mContext.getResources().getFraction(
+                R.fraction.magnification_resize_window_size_amount,
+                /* base= */ 1,
+                /* pbase= */ 1);
+
+        mInstrumentation.runOnMainSync(() -> {
+            mWindowMagnificationController.enableWindowMagnificationInternal(Float.NaN, Float.NaN,
+                    Float.NaN);
+            mWindowMagnificationController.setWindowSize(startingSize, startingSize);
+            mWindowMagnificationController.setEditMagnifierSizeMode(true);
+        });
+
+        final View mirrorView = mWindowManager.getAttachedView();
+        final AtomicInteger actualWindowHeight = new AtomicInteger();
+        final AtomicInteger actualWindowWidth = new AtomicInteger();
+
+        mInstrumentation.runOnMainSync(
+                () -> {
+                    mirrorView.performAccessibilityAction(
+                            R.id.accessibility_action_decrease_window_height, null);
+                    actualWindowHeight.set(mWindowManager.getLayoutParamsFromAttachedView().height);
+                    actualWindowWidth.set(mWindowManager.getLayoutParamsFromAttachedView().width);
+                });
+
+        final int mirrorSurfaceMargin = mResources.getDimensionPixelSize(
+                R.dimen.magnification_mirror_surface_margin);
+        // Window height includes the magnifier frame and the margin. Decreasing the window size
+        // will be decreasing the amount of the frame size only.
+        int newWindowHeight =
+                (int) ((startingSize - 2 * mirrorSurfaceMargin) * (1 - changeWindowSizeAmount))
+                        + 2 * mirrorSurfaceMargin;
+        assertEquals(startingSize, actualWindowWidth.get());
+        assertEquals(newWindowHeight, actualWindowHeight.get());
+    }
+
+    @Test
+    public void windowWidthIsMin_noDecreaseWindowWidthA11yAction() {
+        int mMinWindowSize = mResources.getDimensionPixelSize(
+                com.android.internal.R.dimen.accessibility_window_magnifier_min_size);
+        final int startingSize = mMinWindowSize;
+
+        mInstrumentation.runOnMainSync(() -> {
+            mWindowMagnificationController.enableWindowMagnificationInternal(Float.NaN, Float.NaN,
+                    Float.NaN);
+            mWindowMagnificationController.setWindowSize(startingSize, startingSize);
+            mWindowMagnificationController.setEditMagnifierSizeMode(true);
+        });
+
+        final View mirrorView = mWindowManager.getAttachedView();
+        final AccessibilityNodeInfo accessibilityNodeInfo =
+                mirrorView.createAccessibilityNodeInfo();
+        assertFalse(accessibilityNodeInfo.getActionList().contains(
+                new AccessibilityAction(R.id.accessibility_action_decrease_window_width, null)));
+    }
+
+    @Test
+    public void windowHeightIsMin_noDecreaseWindowHeightA11yAcyion() {
+        int mMinWindowSize = mResources.getDimensionPixelSize(
+                com.android.internal.R.dimen.accessibility_window_magnifier_min_size);
+        final int startingSize = mMinWindowSize;
+
+        mInstrumentation.runOnMainSync(() -> {
+            mWindowMagnificationController.enableWindowMagnificationInternal(Float.NaN, Float.NaN,
+                    Float.NaN);
+            mWindowMagnificationController.setWindowSize(startingSize, startingSize);
+            mWindowMagnificationController.setEditMagnifierSizeMode(true);
+        });
+
+        final View mirrorView = mWindowManager.getAttachedView();
+        final AccessibilityNodeInfo accessibilityNodeInfo =
+                mirrorView.createAccessibilityNodeInfo();
+        assertFalse(accessibilityNodeInfo.getActionList().contains(
+                new AccessibilityAction(R.id.accessibility_action_decrease_window_height, null)));
+    }
+
+    @Test
     public void enableWindowMagnification_hasA11yWindowTitle() {
         mInstrumentation.runOnMainSync(() -> {
             mWindowMagnificationController.enableWindowMagnificationInternal(Float.NaN, Float.NaN,
@@ -1166,4 +1405,5 @@
         when(mContext.getDisplay()).thenReturn(display);
         return newRotation;
     }
+
 }