Add ZoomDensity so that we can change the desired default scale. (0d8b77c2) · Commits · e / os / android_frameworks_base

core/java/android/webkit/WebSettings.java

+48 −2

Original line number	Diff line number	Diff line
		@@ -70,6 +70,23 @@ public class WebSettings {
		int value;
		}

		/**
		* Enum for specifying the WebView's desired density.
		* FAR makes 100% looking like in 240dpi
		* MEDIUM makes 100% looking like in 160dpi
		* CLOSE makes 100% looking like in 120dpi
		* @hide Pending API council approval
		*/
		public enum ZoomDensity {
		FAR(150), // 240dpi
		MEDIUM(100), // 160dpi
		CLOSE(75); // 120dpi
		ZoomDensity(int size) {
		value = size;
		}
		int value;
		}

		/**
		* Default cache usage pattern Use with {@link #setCacheMode}.
		*/
		@@ -105,6 +122,8 @@ public class WebSettings {
		LOW
		}

		// WebView associated with this WebSettings.
		private WebView mWebView;
		// BrowserFrame used to access the native frame pointer.
		private BrowserFrame mBrowserFrame;
		// Flag to prevent multiple SYNC messages at one time.
		@@ -145,6 +164,7 @@ public class WebSettings {
		// Don't need to synchronize the get/set methods as they
		// are basic types, also none of these values are used in
		// native WebCore code.
		private ZoomDensity mDefaultZoom = ZoomDensity.MEDIUM;
		private RenderPriority mRenderPriority = RenderPriority.NORMAL;
		private int mOverrideCacheMode = LOAD_DEFAULT;
		private boolean mSaveFormData = true;
		@@ -237,9 +257,10 @@ public class WebSettings {
		* Package constructor to prevent clients from creating a new settings
		* instance.
		*/
		WebSettings(Context context) {
		WebSettings(Context context, WebView webview) {
		mEventHandler = new EventHandler();
		mContext = context;
		mWebView = webview;
		mDefaultTextEncoding = context.getString(com.android.internal.
		R.string.default_text_encoding);

		@@ -446,6 +467,31 @@ public class WebSettings {
		return mTextSize;
		}

		/**
		* Set the default zoom density of the page. This should be called from UI
		* thread.
		* @param zoom A ZoomDensity value
		* @see WebSettings.ZoomDensity
		* @hide Pending API council approval
		*/
		public void setDefaultZoom(ZoomDensity zoom) {
		if (mDefaultZoom != zoom) {
		mDefaultZoom = zoom;
		mWebView.updateDefaultZoomDensity(zoom.value);
		}
		}

		/**
		* Get the default zoom density of the page. This should be called from UI
		* thread.
		* @return A ZoomDensity value
		* @see WebSettings.ZoomDensity
		* @hide Pending API council approval
		*/
		public ZoomDensity getDefaultZoom() {
		return mDefaultZoom;
		}

		/**
		* Enables using light touches to make a selection and activate mouseovers.
		*/

core/java/android/webkit/WebView.java

+24 −7

Original line number	Diff line number	Diff line
		@@ -408,7 +408,7 @@ public class WebView extends AbsoluteLayout

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

		// set to true temporarily while the zoom control is being dragged
		private boolean mPreviewZoomOnly = false;
		@@ -640,7 +640,7 @@ public class WebView extends AbsoluteLayout
		mZoomFitPageButton.setOnClickListener(
		new View.OnClickListener() {
		public void onClick(View v) {
		zoomWithPreview(DEFAULT_SCALE);
		zoomWithPreview(mDefaultScale);
		updateZoomButtonsEnabled();
		}
		});
		@@ -663,7 +663,7 @@ public class WebView extends AbsoluteLayout
		// or out.
		mZoomButtonsController.setZoomInEnabled(canZoomIn);
		mZoomButtonsController.setZoomOutEnabled(canZoomOut);
		mZoomFitPageButton.setEnabled(mActualScale != DEFAULT_SCALE);
		mZoomFitPageButton.setEnabled(mActualScale != mDefaultScale);
		}
		mZoomOverviewButton.setVisibility(canZoomScrollOut() ? View.VISIBLE:
		View.GONE);
		@@ -685,7 +685,7 @@ public class WebView extends AbsoluteLayout
		mNavSlop = (int) (16 * density);
		// density adjusted scale factors
		DEFAULT_SCALE_PERCENT = (int) (100 * density);
		DEFAULT_SCALE = density;
		mDefaultScale = density;
		mActualScale = density;
		mInvActualScale = 1 / density;
		DEFAULT_MAX_ZOOM_SCALE = 4.0f * density;
		@@ -694,6 +694,23 @@ public class WebView extends AbsoluteLayout
		mMinZoomScale = DEFAULT_MIN_ZOOM_SCALE;
		}

		/* package */void updateDefaultZoomDensity(int zoomDensity) {
		final float density = getContext().getResources().getDisplayMetrics().density
		* 100 / zoomDensity;
		if (Math.abs(density - mDefaultScale) > 0.01) {
		float scaleFactor = density / mDefaultScale;
		// adjust the limits
		mNavSlop = (int) (16 * density);
		DEFAULT_SCALE_PERCENT = (int) (100 * density);
		DEFAULT_MAX_ZOOM_SCALE = 4.0f * density;
		DEFAULT_MIN_ZOOM_SCALE = 0.25f * density;
		mDefaultScale = density;
		mMaxZoomScale *= scaleFactor;
		mMinZoomScale *= scaleFactor;
		setNewZoomScale(mActualScale * scaleFactor, false);
		}
		}

		/* package */ boolean onSavePassword(String schemePlusHost, String username,
		String password, final Message resumeMsg) {
		boolean rVal = false;
		@@ -4172,8 +4189,8 @@ public class WebView extends AbsoluteLayout
		float oldScale = mActualScale;

		// snap to DEFAULT_SCALE if it is close
		if (scale > (DEFAULT_SCALE - 0.05) && scale < (DEFAULT_SCALE + 0.05)) {
		scale = DEFAULT_SCALE;
		if (scale > (mDefaultScale - 0.05) && scale < (mDefaultScale + 0.05)) {
		scale = mDefaultScale;
		}

		setNewZoomScale(scale, false);
		@@ -4689,7 +4706,7 @@ public class WebView extends AbsoluteLayout
		int initialScale = msg.arg1;
		int viewportWidth = msg.arg2;
		// start a new page with DEFAULT_SCALE zoom scale.
		float scale = DEFAULT_SCALE;
		float scale = mDefaultScale;
		if (mInitialScale > 0) {
		scale = mInitialScale / 100.0f;
		} else {

core/java/android/webkit/WebViewCore.java

+16 −2

Original line number	Diff line number	Diff line
		@@ -139,7 +139,7 @@ final class WebViewCore {
		// ready.
		mEventHub = new EventHub();
		// Create a WebSettings object for maintaining all settings
		mSettings = new WebSettings(mContext);
		mSettings = new WebSettings(mContext, mWebView);
		// The WebIconDatabase needs to be initialized within the UI thread so
		// just request the instance here.
		WebIconDatabase.getInstance();
		@@ -1560,6 +1560,20 @@ final class WebViewCore {
		// set the viewport settings from WebKit
		setViewportSettingsFromNative();

		// adjust the default scale to match the density
		if (WebView.DEFAULT_SCALE_PERCENT != 100) {
		float adjust = WebView.DEFAULT_SCALE_PERCENT / 100;
		if (mViewportInitialScale > 0) {
		mViewportInitialScale *= adjust;
		}
		if (mViewportMinimumScale > 0) {
		mViewportMinimumScale *= adjust;
		}
		if (mViewportMaximumScale > 0) {
		mViewportMaximumScale *= adjust;
		}
		}

		// infer the values if they are not defined.
		if (mViewportWidth == 0) {
		if (mViewportInitialScale == 0) {