dpi changes for webview (25737916) · Commits · e / os / android_frameworks_base

core/java/android/webkit/WebView.java

+29 −15

Original line number	Diff line number	Diff line
		@@ -395,22 +395,27 @@ public class WebView extends AbsoluteLayout
		// width which view is considered to be fully zoomed out
		static final int ZOOM_OUT_WIDTH = 1008;

		private static final float DEFAULT_MAX_ZOOM_SCALE = 4.0f;
		private static final float DEFAULT_MIN_ZOOM_SCALE = 0.25f;
		// default scale limit. Depending on the display density
		private static float DEFAULT_MAX_ZOOM_SCALE;
		private static float DEFAULT_MIN_ZOOM_SCALE;
		// scale limit, which can be set through viewport meta tag in the web page
		private float mMaxZoomScale = DEFAULT_MAX_ZOOM_SCALE;
		private float mMinZoomScale = DEFAULT_MIN_ZOOM_SCALE;
		private float mMaxZoomScale;
		private float mMinZoomScale;
		private boolean mMinZoomScaleFixed = false;

		// initial scale in percent. 0 means using default.
		private int mInitialScale = 0;

		// default scale. Depending on the display density.
		static int DEFAULT_SCALE_PERCENT;
		private float DEFAULT_SCALE;

		// set to true temporarily while the zoom control is being dragged
		private boolean mPreviewZoomOnly = false;

		// computed scale and inverse, from mZoomWidth.
		private float mActualScale = 1;
		private float mInvActualScale = 1;
		private float mActualScale;
		private float mInvActualScale;
		// if this is non-zero, it is used on drawing rather than mActualScale
		private float mZoomScale;
		private float mInvInitialZoomScale;
		@@ -635,7 +640,7 @@ public class WebView extends AbsoluteLayout
		mZoomFitPageButton.setOnClickListener(
		new View.OnClickListener() {
		public void onClick(View v) {
		zoomWithPreview(1f);
		zoomWithPreview(DEFAULT_SCALE);
		updateZoomButtonsEnabled();
		}
		});
		@@ -658,7 +663,7 @@ public class WebView extends AbsoluteLayout
		// or out.
		mZoomButtonsController.setZoomInEnabled(canZoomIn);
		mZoomButtonsController.setZoomOutEnabled(canZoomOut);
		mZoomFitPageButton.setEnabled(mActualScale != 1);
		mZoomFitPageButton.setEnabled(mActualScale != DEFAULT_SCALE);
		}
		mZoomOverviewButton.setVisibility(canZoomScrollOut() ? View.VISIBLE:
		View.GONE);
		@@ -674,10 +679,19 @@ public class WebView extends AbsoluteLayout
		final int slop = ViewConfiguration.get(getContext()).getScaledTouchSlop();
		mTouchSlopSquare = slop * slop;
		mMinLockSnapReverseDistance = slop;
		final float density = getContext().getResources().getDisplayMetrics().density;
		// use one line height, 16 based on our current default font, for how
		// far we allow a touch be away from the edge of a link
		mNavSlop = (int) (16 * getContext().getResources()
		.getDisplayMetrics().density);
		mNavSlop = (int) (16 * density);
		// density adjusted scale factors
		DEFAULT_SCALE_PERCENT = (int) (100 * density);
		DEFAULT_SCALE = density;
		mActualScale = density;
		mInvActualScale = 1 / density;
		DEFAULT_MAX_ZOOM_SCALE = 4.0f * density;
		DEFAULT_MIN_ZOOM_SCALE = 0.25f * density;
		mMaxZoomScale = DEFAULT_MAX_ZOOM_SCALE;
		mMinZoomScale = DEFAULT_MIN_ZOOM_SCALE;
		}

		/* package */ boolean onSavePassword(String schemePlusHost, String username,
		@@ -4157,9 +4171,9 @@ public class WebView extends AbsoluteLayout
		private boolean zoomWithPreview(float scale) {
		float oldScale = mActualScale;

		// snap to 100% if it is close
		if (scale > 0.95f && scale < 1.05f) {
		scale = 1.0f;
		// snap to DEFAULT_SCALE if it is close
		if (scale > (DEFAULT_SCALE - 0.05) && scale < (DEFAULT_SCALE + 0.05)) {
		scale = DEFAULT_SCALE;
		}

		setNewZoomScale(scale, false);
		@@ -4674,8 +4688,8 @@ public class WebView extends AbsoluteLayout
		}
		int initialScale = msg.arg1;
		int viewportWidth = msg.arg2;
		// by default starting a new page with 100% zoom scale.
		float scale = 1.0f;
		// start a new page with DEFAULT_SCALE zoom scale.
		float scale = DEFAULT_SCALE;
		if (mInitialScale > 0) {
		scale = mInitialScale / 100.0f;
		} else {

core/java/android/webkit/WebViewCore.java

+8 −7

Original line number	Diff line number	Diff line
		@@ -97,7 +97,7 @@ final class WebViewCore {

		private boolean mViewportUserScalable = true;

		private int mRestoredScale = 100;
		private int mRestoredScale = WebView.DEFAULT_SCALE_PERCENT;
		private int mRestoredX = 0;
		private int mRestoredY = 0;

		@@ -1563,16 +1563,16 @@ final class WebViewCore {
		// infer the values if they are not defined.
		if (mViewportWidth == 0) {
		if (mViewportInitialScale == 0) {
		mViewportInitialScale = 100;
		mViewportInitialScale = WebView.DEFAULT_SCALE_PERCENT;
		}
		if (mViewportMinimumScale == 0) {
		mViewportMinimumScale = 100;
		mViewportMinimumScale = WebView.DEFAULT_SCALE_PERCENT;
		}
		}
		if (mViewportUserScalable == false) {
		mViewportInitialScale = 100;
		mViewportMinimumScale = 100;
		mViewportMaximumScale = 100;
		mViewportInitialScale = WebView.DEFAULT_SCALE_PERCENT;
		mViewportMinimumScale = WebView.DEFAULT_SCALE_PERCENT;
		mViewportMaximumScale = WebView.DEFAULT_SCALE_PERCENT;
		}
		if (mViewportMinimumScale > mViewportInitialScale) {
		if (mViewportInitialScale == 0) {
		@@ -1588,7 +1588,8 @@ final class WebViewCore {
		mViewportInitialScale = mViewportMaximumScale;
		}
		}
		if (mViewportWidth < 0 && mViewportInitialScale == 100) {
		if (mViewportWidth < 0
		&& mViewportInitialScale == WebView.DEFAULT_SCALE_PERCENT) {
		mViewportWidth = 0;
		}