diff options
Diffstat (limited to 'core/java/android')
| -rw-r--r-- | core/java/android/webkit/WebViewClassic.java | 189 |
1 files changed, 97 insertions, 92 deletions
diff --git a/core/java/android/webkit/WebViewClassic.java b/core/java/android/webkit/WebViewClassic.java index 1c0aee8..5a0818b 100644 --- a/core/java/android/webkit/WebViewClassic.java +++ b/core/java/android/webkit/WebViewClassic.java @@ -70,8 +70,6 @@ import android.util.DisplayMetrics; import android.util.EventLog; import android.util.Log; import android.view.Display; -import android.view.GestureDetector; -import android.view.GestureDetector.SimpleOnGestureListener; import android.view.Gravity; import android.view.HapticFeedbackConstants; import android.view.HardwareCanvas; @@ -820,51 +818,6 @@ public final class WebViewClassic implements WebViewProvider, WebViewProvider.Sc } } - private class TextScrollListener extends SimpleOnGestureListener { - @Override - public boolean onFling(MotionEvent e1, MotionEvent e2, - float velocityX, float velocityY) { - int maxScrollX = mEditTextContent.width() - - mEditTextBounds.width(); - int maxScrollY = mEditTextContent.height() - - mEditTextBounds.height(); - - int contentVelocityX = viewToContentDimension((int)-velocityX); - int contentVelocityY = viewToContentDimension((int)-velocityY); - mEditTextScroller.fling(-mEditTextContent.left, - -mEditTextContent.top, - contentVelocityX, contentVelocityY, - 0, maxScrollX, 0, maxScrollY); - return true; - } - - @Override - public boolean onScroll(MotionEvent e1, MotionEvent e2, - float distanceX, float distanceY) { - // Scrollable edit text. Scroll it. - int newScrollX = deltaToTextScroll( - -mEditTextContent.left, mEditTextContent.width(), - mEditTextBounds.width(), - (int) distanceX); - int newScrollY = deltaToTextScroll( - -mEditTextContent.top, mEditTextContent.height(), - mEditTextBounds.height(), - (int) distanceY); - scrollEditText(newScrollX, newScrollY); - return true; - } - - private int deltaToTextScroll(int oldScroll, int contentSize, - int boundsSize, int delta) { - int newScroll = oldScroll + - viewToContentDimension(delta); - int maxScroll = contentSize - boundsSize; - newScroll = Math.min(maxScroll, newScroll); - newScroll = Math.max(0, newScroll); - return newScroll; - } - } - // The listener to capture global layout change event. private InnerGlobalLayoutListener mGlobalLayoutListener = null; @@ -893,7 +846,6 @@ public final class WebViewClassic implements WebViewProvider, WebViewProvider.Sc private int mFieldPointer; private PastePopupWindow mPasteWindow; private AutoCompletePopup mAutoCompletePopup; - private GestureDetector mGestureDetector; Rect mEditTextBounds = new Rect(); Rect mEditTextContent = new Rect(); int mEditTextLayerId; @@ -1037,6 +989,7 @@ public final class WebViewClassic implements WebViewProvider, WebViewProvider.Sc private static final int TOUCH_DONE_MODE = 7; private static final int TOUCH_PINCH_DRAG = 8; private static final int TOUCH_DRAG_LAYER_MODE = 9; + private static final int TOUCH_DRAG_TEXT_MODE = 10; // Whether to forward the touch events to WebCore // Can only be set by WebKit via JNI. @@ -1514,7 +1467,6 @@ public final class WebViewClassic implements WebViewProvider, WebViewProvider.Sc } mAutoFillData = new WebViewCore.AutoFillData(); - mGestureDetector = new GestureDetector(mContext, new TextScrollListener()); mEditTextScroller = new Scroller(context); } @@ -3404,6 +3356,10 @@ public final class WebViewClassic implements WebViewProvider, WebViewProvider.Sc boolean clampedY) { // Special-case layer scrolling so that we do not trigger normal scroll // updating. + if (mTouchMode == TOUCH_DRAG_TEXT_MODE) { + scrollEditText(scrollX, scrollY); + return; + } if (mTouchMode == TOUCH_DRAG_LAYER_MODE) { scrollLayerTo(scrollX, scrollY); return; @@ -3876,6 +3832,12 @@ public final class WebViewClassic implements WebViewProvider, WebViewProvider.Sc rangeY = mScrollingLayerRect.bottom; // No overscrolling for layers. overflingDistance = 0; + } else if (mTouchMode == TOUCH_DRAG_TEXT_MODE) { + oldX = getTextScrollX(); + oldY = getTextScrollY(); + rangeX = getMaxTextScrollX(); + rangeY = getMaxTextScrollY(); + overflingDistance = 0; } mWebViewPrivate.overScrollBy(x - oldX, y - oldY, oldX, oldY, @@ -3886,12 +3848,14 @@ public final class WebViewClassic implements WebViewProvider, WebViewProvider.Sc mOverScrollGlow.absorbGlow(x, y, oldX, oldY, rangeX, rangeY); } } else { - if (mTouchMode != TOUCH_DRAG_LAYER_MODE) { - setScrollXRaw(x); - setScrollYRaw(y); - } else { + if (mTouchMode == TOUCH_DRAG_LAYER_MODE) { // Update the layer position instead of WebView. scrollLayerTo(x, y); + } else if (mTouchMode == TOUCH_DRAG_TEXT_MODE) { + scrollEditText(x, y); + } else { + setScrollXRaw(x); + setScrollYRaw(y); } abortAnimation(); nativeSetIsScrolling(false); @@ -6177,7 +6141,6 @@ public final class WebViewClassic implements WebViewProvider, WebViewProvider.Sc startTouch(x, y, eventTime); if (mIsEditingText) { mTouchInEditText = mEditTextBounds.contains(contentX, contentY); - mGestureDetector.onTouchEvent(ev); } break; } @@ -6210,13 +6173,6 @@ public final class WebViewClassic implements WebViewProvider, WebViewProvider.Sc invalidate(); } break; - } else if (mConfirmMove && mTouchInEditText) { - ViewParent parent = mWebView.getParent(); - if (parent != null) { - parent.requestDisallowInterceptTouchEvent(true); - } - mGestureDetector.onTouchEvent(ev); - break; } // pass the touch events from UI thread to WebCore thread @@ -6264,7 +6220,8 @@ public final class WebViewClassic implements WebViewProvider, WebViewProvider.Sc } if (mTouchMode != TOUCH_DRAG_MODE && - mTouchMode != TOUCH_DRAG_LAYER_MODE) { + mTouchMode != TOUCH_DRAG_LAYER_MODE && + mTouchMode != TOUCH_DRAG_TEXT_MODE) { if (!mConfirmMove) { break; @@ -6347,9 +6304,6 @@ public final class WebViewClassic implements WebViewProvider, WebViewProvider.Sc deltaX = 0; } } - mLastTouchX = x; - mLastTouchY = y; - if (deltaX * deltaX + deltaY * deltaY > mTouchSlopSquare) { mHeldMotionless = MOTIONLESS_FALSE; nativeSetIsScrolling(true); @@ -6360,13 +6314,24 @@ public final class WebViewClassic implements WebViewProvider, WebViewProvider.Sc } mLastTouchTime = eventTime; + boolean allDrag = doDrag(deltaX, deltaY); + if (allDrag) { + mLastTouchX = x; + mLastTouchY = y; + } else { + int contentDeltaX = (int)Math.floor(deltaX * mZoomManager.getInvScale()); + int roundedDeltaX = contentToViewDimension(contentDeltaX); + int contentDeltaY = (int)Math.floor(deltaY * mZoomManager.getInvScale()); + int roundedDeltaY = contentToViewDimension(contentDeltaY); + mLastTouchX -= roundedDeltaX; + mLastTouchY -= roundedDeltaY; + } } - doDrag(deltaX, deltaY); - // Turn off scrollbars when dragging a layer. if (keepScrollBarsVisible && - mTouchMode != TOUCH_DRAG_LAYER_MODE) { + mTouchMode != TOUCH_DRAG_LAYER_MODE && + mTouchMode != TOUCH_DRAG_TEXT_MODE) { if (mHeldMotionless != MOTIONLESS_TRUE) { mHeldMotionless = MOTIONLESS_TRUE; invalidate(); @@ -6387,11 +6352,6 @@ public final class WebViewClassic implements WebViewProvider, WebViewProvider.Sc break; } case MotionEvent.ACTION_UP: { - mGestureDetector.onTouchEvent(ev); - if (mTouchInEditText && mConfirmMove) { - stopTouch(); - break; // We've been scrolling the edit text. - } if (!mConfirmMove && mIsEditingText && mSelectionStarted && mIsCaretSelection) { showPasteWindow(); @@ -6505,6 +6465,7 @@ public final class WebViewClassic implements WebViewProvider, WebViewProvider.Sc } case TOUCH_DRAG_MODE: case TOUCH_DRAG_LAYER_MODE: + case TOUCH_DRAG_TEXT_MODE: mPrivateHandler.removeMessages(DRAG_HELD_MOTIONLESS); mPrivateHandler.removeMessages(AWAKEN_SCROLL_BARS); // if the user waits a while w/o moving before the @@ -6701,20 +6662,31 @@ public final class WebViewClassic implements WebViewProvider, WebViewProvider.Sc } } - private void doDrag(int deltaX, int deltaY) { + private boolean doDrag(int deltaX, int deltaY) { + boolean allDrag = true; if ((deltaX | deltaY) != 0) { int oldX = getScrollX(); int oldY = getScrollY(); int rangeX = computeMaxScrollX(); int rangeY = computeMaxScrollY(); - // Check for the original scrolling layer in case we change - // directions. mTouchMode might be TOUCH_DRAG_MODE if we have - // reached the edge of a layer but mScrollingLayer will be non-zero - // if we initiated the drag on a layer. - if (mCurrentScrollingLayerId != 0) { - final int contentX = viewToContentDimension(deltaX); - final int contentY = viewToContentDimension(deltaY); - + final int contentX = (int)Math.floor(deltaX * mZoomManager.getInvScale()); + final int contentY = (int)Math.floor(deltaY * mZoomManager.getInvScale()); + + // Assume page scrolling and change below if we're wrong + mTouchMode = TOUCH_DRAG_MODE; + + // Check special scrolling before going to main page scrolling. + if (mIsEditingText && mTouchInEditText && canTextScroll(deltaX, deltaY)) { + // Edit text scrolling + oldX = getTextScrollX(); + rangeX = getMaxTextScrollX(); + deltaX = contentX; + oldY = getTextScrollY(); + rangeY = getMaxTextScrollY(); + deltaY = contentY; + mTouchMode = TOUCH_DRAG_TEXT_MODE; + allDrag = false; + } else if (mCurrentScrollingLayerId != 0) { // Check the scrolling bounds to see if we will actually do any // scrolling. The rectangle is in document coordinates. final int maxX = mScrollingLayerRect.right; @@ -6734,12 +6706,7 @@ public final class WebViewClassic implements WebViewProvider, WebViewProvider.Sc oldY = mScrollingLayerRect.top; rangeX = maxX; rangeY = maxY; - } else { - // Scroll the main page if we are not going to scroll the - // layer. This does not reset mScrollingLayer in case the - // user changes directions and the layer can scroll the - // other way. - mTouchMode = TOUCH_DRAG_MODE; + allDrag = false; } } @@ -6755,11 +6722,13 @@ public final class WebViewClassic implements WebViewProvider, WebViewProvider.Sc } } mZoomManager.keepZoomPickerVisible(); + return allDrag; } private void stopTouch() { if (mScroller.isFinished() && !mSelectingText - && (mTouchMode == TOUCH_DRAG_MODE || mTouchMode == TOUCH_DRAG_LAYER_MODE)) { + && (mTouchMode == TOUCH_DRAG_MODE + || mTouchMode == TOUCH_DRAG_LAYER_MODE)) { WebViewCore.resumePriority(); WebViewCore.resumeUpdatePicture(mWebViewCore); nativeSetIsScrolling(false); @@ -7153,6 +7122,13 @@ public final class WebViewClassic implements WebViewProvider, WebViewProvider.Sc maxY = mScrollingLayerRect.bottom; // No overscrolling for layers. overscrollDistance = overflingDistance = 0; + } else if (mTouchMode == TOUCH_DRAG_TEXT_MODE) { + scrollX = getTextScrollX(); + scrollY = getTextScrollY(); + maxX = getMaxTextScrollX(); + maxY = getMaxTextScrollY(); + // No overscrolling for edit text. + overscrollDistance = overflingDistance = 0; } if (mSnapScrollMode != SNAP_NONE) { @@ -7232,7 +7208,7 @@ public final class WebViewClassic implements WebViewProvider, WebViewProvider.Sc final int time = mScroller.getDuration(); // Suppress scrollbars for layer scrolling. - if (mTouchMode != TOUCH_DRAG_LAYER_MODE) { + if (mTouchMode != TOUCH_DRAG_LAYER_MODE && mTouchMode != TOUCH_DRAG_TEXT_MODE) { mWebViewPrivate.awakenScrollBars(time); } @@ -7590,6 +7566,36 @@ public final class WebViewClassic implements WebViewProvider, WebViewProvider.Sc return mWebViewCore; } + private boolean canTextScroll(int directionX, int directionY) { + int scrollX = getTextScrollX(); + int scrollY = getTextScrollY(); + int maxScrollX = getMaxTextScrollX(); + int maxScrollY = getMaxTextScrollY(); + boolean canScrollX = (directionX > 0) + ? (scrollX < maxScrollX) + : (scrollX > 0); + boolean canScrollY = (directionY > 0) + ? (scrollY < maxScrollY) + : (scrollY > 0); + return canScrollX || canScrollY; + } + + private int getTextScrollX() { + return -mEditTextContent.left; + } + + private int getTextScrollY() { + return -mEditTextContent.top; + } + + private int getMaxTextScrollX() { + return Math.max(0, mEditTextContent.width() - mEditTextBounds.width()); + } + + private int getMaxTextScrollY() { + return Math.max(0, mEditTextContent.height() - mEditTextBounds.height()); + } + /** * Used only by TouchEventQueue to store pending touch events. */ @@ -8909,8 +8915,7 @@ public final class WebViewClassic implements WebViewProvider, WebViewProvider.Sc private void scrollEditText(int scrollX, int scrollY) { // Scrollable edit text. Scroll it. - float maxScrollX = (float)(mEditTextContent.width() - - mEditTextBounds.width()); + float maxScrollX = getMaxTextScrollX(); float scrollPercentX = ((float)scrollX)/maxScrollX; mEditTextContent.offsetTo(-scrollX, -scrollY); mWebViewCore.sendMessageAtFrontOfQueue(EventHub.SCROLL_TEXT_INPUT, 0, |