Draw text selection in Java (086a514e) · Commits · e / os / android_frameworks_base

core/java/android/webkit/WebView.java

+67 −7

Original line number	Diff line number	Diff line
		@@ -34,7 +34,6 @@ import android.graphics.BitmapFactory;
		import android.graphics.BitmapShader;
		import android.graphics.Canvas;
		import android.graphics.Color;
		import android.graphics.CornerPathEffect;
		import android.graphics.DrawFilter;
		import android.graphics.Paint;
		import android.graphics.PaintFlagsDrawFilter;
		@@ -58,8 +57,6 @@ import android.os.Message;
		import android.os.StrictMode;
		import android.provider.Settings;
		import android.speech.tts.TextToSpeech;
		import android.text.Selection;
		import android.text.Spannable;
		import android.util.AttributeSet;
		import android.util.EventLog;
		import android.util.Log;
		@@ -606,9 +603,15 @@ public class WebView extends AbsoluteLayout
		// know to handle Shift and arrows natively first
		private boolean mAccessibilityScriptInjected;

		static final boolean USE_JAVA_TEXT_SELECTION = true;
		private Region mTextSelectionRegion = new Region();
		private Paint mTextSelectionPaint;
		private Drawable mSelectHandleLeft;
		private Drawable mSelectHandleRight;

		static final boolean USE_WEBKIT_RINGS = true;
		// the color used to highlight the touch rectangles
		private static final int mHightlightColor = 0x6633b5e5;
		private static final int HIGHLIGHT_COLOR = 0x6633b5e5;
		// the round corner for the highlight path
		private static final float TOUCH_HIGHLIGHT_ARC = 5.0f;
		// the region indicating where the user touched on the screen
		@@ -4050,8 +4053,10 @@ public class WebView extends AbsoluteLayout

		@Override
		protected void onDraw(Canvas canvas) {
		// if mNativeClass is 0, the WebView has been destroyed. Do nothing.
		// if mNativeClass is 0, the WebView is either destroyed or not
		// initialized. In either case, just draw the background color and return
		if (mNativeClass == 0) {
		canvas.drawColor(mBackgroundColor);
		return;
		}

		@@ -4105,7 +4110,7 @@ public class WebView extends AbsoluteLayout
		} else {
		if (mTouchHightlightPaint == null) {
		mTouchHightlightPaint = new Paint();
		mTouchHightlightPaint.setColor(mHightlightColor);
		mTouchHightlightPaint.setColor(HIGHLIGHT_COLOR);
		}
		RegionIterator iter = new RegionIterator(mTouchHighlightRegion);
		Rect r = new Rect();
		@@ -4400,7 +4405,7 @@ public class WebView extends AbsoluteLayout
		int extras = DRAW_EXTRAS_NONE;
		if (mFindIsUp) {
		extras = DRAW_EXTRAS_FIND;
		} else if (mSelectingText) {
		} else if (mSelectingText && !USE_JAVA_TEXT_SELECTION) {
		extras = DRAW_EXTRAS_SELECTION;
		nativeSetSelectionPointer(mDrawSelectionPointer,
		mZoomManager.getInvScale(),
		@@ -4427,6 +4432,10 @@ public class WebView extends AbsoluteLayout
		nativeUseHardwareAccelSkia(mHardwareAccelSkia);
		}

		if (mSelectingText && USE_JAVA_TEXT_SELECTION) {
		drawTextSelectionHandles(canvas);
		}

		} else {
		DrawFilter df = null;
		if (mZoomManager.isZoomAnimating() \|\| UIAnimationsRunning) {
		@@ -4461,6 +4470,56 @@ public class WebView extends AbsoluteLayout
		}
		}

		private void drawTextSelectionHandles(Canvas canvas) {
		if (mTextSelectionPaint == null) {
		mTextSelectionPaint = new Paint();
		mTextSelectionPaint.setColor(HIGHLIGHT_COLOR);
		}
		mTextSelectionRegion.setEmpty();
		nativeGetTextSelectionRegion(mTextSelectionRegion);
		Rect r = new Rect();
		RegionIterator iter = new RegionIterator(mTextSelectionRegion);
		int start_x = -1;
		int start_y = -1;
		int end_x = -1;
		int end_y = -1;
		while (iter.next(r)) {
		r = new Rect(
		contentToViewDimension(r.left),
		contentToViewDimension(r.top),
		contentToViewDimension(r.right),
		contentToViewDimension(r.bottom));
		// Regions are in order. First one is where selection starts,
		// last one is where it ends
		if (start_x < 0 \|\| start_y < 0) {
		start_x = r.left;
		start_y = r.bottom;
		}
		end_x = r.right;
		end_y = r.bottom;
		canvas.drawRect(r, mTextSelectionPaint);
		}
		if (mSelectHandleLeft == null) {
		mSelectHandleLeft = mContext.getResources().getDrawable(
		com.android.internal.R.drawable.text_select_handle_left);
		}
		// Magic formula copied from TextView
		start_x -= (mSelectHandleLeft.getIntrinsicWidth() * 3) / 4;
		mSelectHandleLeft.setBounds(start_x, start_y,
		start_x + mSelectHandleLeft.getIntrinsicWidth(),
		start_y + mSelectHandleLeft.getIntrinsicHeight());
		if (mSelectHandleRight == null) {
		mSelectHandleRight = mContext.getResources().getDrawable(
		com.android.internal.R.drawable.text_select_handle_right);
		}
		end_x -= mSelectHandleRight.getIntrinsicWidth() / 4;
		mSelectHandleRight.setBounds(end_x, end_y,
		end_x + mSelectHandleRight.getIntrinsicWidth(),
		end_y + mSelectHandleRight.getIntrinsicHeight());
		mSelectHandleLeft.draw(canvas);
		mSelectHandleRight.draw(canvas);
		}

		// draw history
		private boolean mDrawHistory = false;
		private Picture mHistoryPicture = null;
		@@ -9329,4 +9388,5 @@ public class WebView extends AbsoluteLayout
		private native int nativeGetBackgroundColor();
		native boolean nativeSetProperty(String key, String value);
		native String nativeGetProperty(String key);
		private native void nativeGetTextSelectionRegion(Region region);
		}