/* Informs Gecko that the screen size has changed. */
private void sendResizeEventIfNecessary(boolean force) {
DisplayMetrics metrics = mContext.getResources().getDisplayMetrics();
IntSize newScreenSize = new IntSize(metrics.widthPixels, metrics.heightPixels);
IntSize newWindowSize = new IntSize(mView.getWidth(), mView.getHeight());
boolean screenSizeChanged = !mScreenSize.equals(newScreenSize);
boolean windowSizeChanged = !mWindowSize.equals(newWindowSize);
if (!force && !screenSizeChanged && !windowSizeChanged) {
return;
}
mScreenSize = newScreenSize;
mWindowSize = newWindowSize;
if (screenSizeChanged) {
Log.d(LOGTAG, "Screen-size changed to " + mScreenSize);
}
if (windowSizeChanged) {
Log.d(LOGTAG, "Window-size changed to " + mWindowSize);
}
GeckoEvent event =
GeckoEvent.createSizeChangedEvent(
mWindowSize.width, mWindowSize.height,
mScreenSize.width, mScreenSize.height);
GeckoAppShell.sendEventToGecko(event);
GeckoAppShell.sendEventToGecko(GeckoEvent.createBroadcastEvent("Window:Resize", ""));
}
/** Restore default search engines in Gecko and retrigger a search engine refresh. */
protected void restoreDefaultSearchEngines() {
GeckoAppShell.sendEventToGecko(
GeckoEvent.createBroadcastEvent("SearchEngines:RestoreDefaults", null));
// Send message to Gecko to get engines. SearchPreferenceCategory listens for the response.
GeckoAppShell.sendEventToGecko(
GeckoEvent.createBroadcastEvent("SearchEngines:GetVisible", null));
}
boolean scrollBy(PointF displacement) {
if (!mOverridePanning) {
return false;
}
if (!mOverrideScrollAck) {
mOverrideScrollPending = true;
mPendingDisplacement.x += displacement.x;
mPendingDisplacement.y += displacement.y;
return true;
}
JSONObject json = new JSONObject();
try {
json.put("x", displacement.x);
json.put("y", displacement.y);
} catch (JSONException e) {
Log.e(LOGTAG, "Error forming subwindow scroll message: ", e);
}
GeckoAppShell.sendEventToGecko(
GeckoEvent.createBroadcastEvent(MESSAGE_SCROLL, json.toString()));
mOverrideScrollAck = false;
mOverrideScrollPending = false;
// clear the |mPendingDisplacement| after serializing |displacement| to
// JSON because they might be the same object
mPendingDisplacement.x = 0;
mPendingDisplacement.y = 0;
return true;
}
/** Implementation of LayerView.Listener */
public void compositionResumeRequested(int width, int height) {
// Asking Gecko to resume the compositor takes too long (see
// https://bugzilla.mozilla.org/show_bug.cgi?id=735230#c23), so we
// resume the compositor directly. We still need to inform Gecko about
// the compositor resuming, so that Gecko knows that it can now draw.
if (mCompositorCreated) {
GeckoAppShell.scheduleResumeComposition(width, height);
GeckoAppShell.sendEventToGecko(GeckoEvent.createCompositorResumeEvent());
}
}
@Override
public void onRefresh() {
final JSONObject response = new JSONObject();
try {
response.put(JSON_KEY_PANEL_ID, panelId);
response.put(JSON_KEY_VIEW_INDEX, viewIndex);
} catch (JSONException e) {
Log.e(LOGTAG, "Could not create refresh message", e);
return;
}
final GeckoEvent event =
GeckoEvent.createBroadcastEvent("HomePanels:RefreshView", response.toString());
GeckoAppShell.sendEventToGecko(event);
}
private void adjustViewport() {
ViewportMetrics viewportMetrics =
new ViewportMetrics(getLayerController().getViewportMetrics());
PointF viewportOffset = viewportMetrics.getOptimumViewportOffset(mBufferSize);
viewportMetrics.setViewportOffset(viewportOffset);
viewportMetrics.setViewport(viewportMetrics.getClampedViewport());
GeckoAppShell.sendEventToGecko(GeckoEvent.createViewportEvent(viewportMetrics));
if (mViewportSizeChanged) {
mViewportSizeChanged = false;
GeckoAppShell.viewSizeChanged();
}
mLastViewportChangeTime = System.currentTimeMillis();
}
private void sendPointToGecko(String event, MotionEvent motionEvent) {
String json;
try {
PointF point = new PointF(motionEvent.getX(), motionEvent.getY());
point = mTarget.convertViewPointToLayerPoint(point);
if (point == null) {
return;
}
json = PointUtils.toJSON(point).toString();
} catch (Exception e) {
Log.e(LOGTAG, "Unable to convert point to JSON for " + event, e);
return;
}
GeckoAppShell.sendEventToGecko(GeckoEvent.createBroadcastEvent(event, json));
}
/*
* Zooming
*/
@Override
public boolean onScaleBegin(SimpleScaleGestureDetector detector) {
if (mState == PanZoomState.ANIMATED_ZOOM) return false;
if (!mTarget.getZoomConstraints().getAllowZoom()) return false;
setState(PanZoomState.PINCHING);
mLastZoomFocus = new PointF(detector.getFocusX(), detector.getFocusY());
cancelTouch();
GeckoAppShell.sendEventToGecko(
GeckoEvent.createNativeGestureEvent(
GeckoEvent.ACTION_MAGNIFY_START, mLastZoomFocus, getMetrics().zoomFactor));
return true;
}
private void adjustViewport(DisplayPortMetrics displayPort) {
ImmutableViewportMetrics metrics = getViewportMetrics();
ImmutableViewportMetrics clampedMetrics = metrics.clamp();
if (displayPort == null) {
displayPort =
DisplayPortCalculator.calculate(metrics, mPanZoomController.getVelocityVector());
}
mDisplayPort = displayPort;
mGeckoViewport = clampedMetrics;
if (mRecordDrawTimes) {
mDrawTimingQueue.add(displayPort);
}
GeckoAppShell.sendEventToGecko(GeckoEvent.createViewportEvent(clampedMetrics, displayPort));
}
public void handleMessage(String event, JSONObject message) {
if ("Viewport:UpdateAndDraw".equals(event)) {
mUpdateViewportOnEndDraw = true;
// Redraw everything.
Rect rect = new Rect(0, 0, mBufferSize.width, mBufferSize.height);
GeckoAppShell.sendEventToGecko(GeckoEvent.createDrawEvent(rect));
} else if ("Viewport:UpdateLater".equals(event)) {
mUpdateViewportOnEndDraw = true;
} else if ("Checkerboard:Toggle".equals(event)) {
try {
boolean showChecks = message.getBoolean("value");
LayerController controller = getLayerController();
controller.setCheckerboardShowChecks(showChecks);
Log.i(LOGTAG, "Showing checks: " + showChecks);
} catch (JSONException ex) {
Log.e(LOGTAG, "Error decoding JSON", ex);
}
}
}
@Override
public void onScaleEnd(SimpleScaleGestureDetector detector) {
if (mState == PanZoomState.ANIMATED_ZOOM) return;
// switch back to the touching state
startTouch(detector.getFocusX(), detector.getFocusY(), detector.getEventTime());
// Force a viewport synchronisation
mTarget.setForceRedraw();
PointF point = new PointF(detector.getFocusX(), detector.getFocusY());
GeckoEvent event =
GeckoEvent.createNativeGestureEvent(
GeckoEvent.ACTION_MAGNIFY_END, point, getMetrics().zoomFactor);
if (event == null) {
return;
}
GeckoAppShell.sendEventToGecko(event);
}
/* Informs Gecko that the screen size has changed. */
private void sendResizeEventIfNecessary(boolean force) {
DisplayMetrics metrics = new DisplayMetrics();
GeckoApp.mAppContext.getWindowManager().getDefaultDisplay().getMetrics(metrics);
// Return immediately if the screen size hasn't changed or the viewport
// size is zero (which indicates that the rendering surface hasn't been
// allocated yet).
boolean screenSizeChanged =
(metrics.widthPixels != mScreenSize.width || metrics.heightPixels != mScreenSize.height);
boolean viewportSizeValid =
(getLayerController() != null && getLayerController().getViewportSize().isPositive());
if (!(force || (screenSizeChanged && viewportSizeValid))) {
return;
}
mScreenSize = new IntSize(metrics.widthPixels, metrics.heightPixels);
IntSize bufferSize;
IntSize tileSize;
// Round up depending on layer implementation to remove texture wastage
if (!mHasDirectTexture) {
// Round to the next multiple of the tile size
bufferSize =
new IntSize(
((mScreenSize.width + LayerController.MIN_BUFFER.width - 1) / TILE_SIZE.width + 1)
* TILE_SIZE.width,
((mScreenSize.height + LayerController.MIN_BUFFER.height - 1) / TILE_SIZE.height + 1)
* TILE_SIZE.height);
tileSize = TILE_SIZE;
} else {
int maxSize = getLayerController().getView().getMaxTextureSize();
// XXX Integrate gralloc/tiling work to circumvent this
if (mScreenSize.width > maxSize || mScreenSize.height > maxSize)
throw new RuntimeException(
"Screen size of " + mScreenSize + " larger than maximum texture size of " + maxSize);
// Round to next power of two until we have NPOT texture support, respecting maximum texture
// size
bufferSize =
new IntSize(
Math.min(
maxSize,
IntSize.nextPowerOfTwo(mScreenSize.width + LayerController.MIN_BUFFER.width)),
Math.min(
maxSize,
IntSize.nextPowerOfTwo(mScreenSize.height + LayerController.MIN_BUFFER.height)));
tileSize = new IntSize(0, 0);
}
Log.i(LOGTAG, "Screen-size changed to " + mScreenSize);
GeckoEvent event =
GeckoEvent.createSizeChangedEvent(
bufferSize.width,
bufferSize.height,
metrics.widthPixels,
metrics.heightPixels,
tileSize.width,
tileSize.height);
GeckoAppShell.sendEventToGecko(event);
}
@Override
public boolean onScale(SimpleScaleGestureDetector detector) {
if (GeckoApp.mAppContext == null || GeckoApp.mAppContext.mDOMFullScreen) return false;
if (mState != PanZoomState.PINCHING) return false;
float prevSpan = detector.getPreviousSpan();
if (FloatUtils.fuzzyEquals(prevSpan, 0.0f)) {
// let's eat this one to avoid setting the new zoom to infinity (bug 711453)
return true;
}
float spanRatio = detector.getCurrentSpan() / prevSpan;
/*
* Apply edge resistance if we're zoomed out smaller than the page size by scaling the zoom
* factor toward 1.0.
*/
float resistance = Math.min(mX.getEdgeResistance(true), mY.getEdgeResistance(true));
if (spanRatio > 1.0f) spanRatio = 1.0f + (spanRatio - 1.0f) * resistance;
else spanRatio = 1.0f - (1.0f - spanRatio) * resistance;
synchronized (mTarget.getLock()) {
float newZoomFactor = getMetrics().zoomFactor * spanRatio;
float minZoomFactor = 0.0f;
float maxZoomFactor = MAX_ZOOM;
ZoomConstraints constraints = mTarget.getZoomConstraints();
if (constraints.getMinZoom() > 0) minZoomFactor = constraints.getMinZoom();
if (constraints.getMaxZoom() > 0) maxZoomFactor = constraints.getMaxZoom();
if (newZoomFactor < minZoomFactor) {
// apply resistance when zooming past minZoomFactor,
// such that it asymptotically reaches minZoomFactor / 2.0
// but never exceeds that
final float rate = 0.5f; // controls how quickly we approach the limit
float excessZoom = minZoomFactor - newZoomFactor;
excessZoom = 1.0f - (float) Math.exp(-excessZoom * rate);
newZoomFactor = minZoomFactor * (1.0f - excessZoom / 2.0f);
}
if (newZoomFactor > maxZoomFactor) {
// apply resistance when zooming past maxZoomFactor,
// such that it asymptotically reaches maxZoomFactor + 1.0
// but never exceeds that
float excessZoom = newZoomFactor - maxZoomFactor;
excessZoom = 1.0f - (float) Math.exp(-excessZoom);
newZoomFactor = maxZoomFactor + excessZoom;
}
scrollBy(mLastZoomFocus.x - detector.getFocusX(), mLastZoomFocus.y - detector.getFocusY());
PointF focus = new PointF(detector.getFocusX(), detector.getFocusY());
scaleWithFocus(newZoomFactor, focus);
}
mLastZoomFocus.set(detector.getFocusX(), detector.getFocusY());
GeckoEvent event =
GeckoEvent.createNativeGestureEvent(
GeckoEvent.ACTION_MAGNIFY, mLastZoomFocus, getMetrics().zoomFactor);
GeckoAppShell.sendEventToGecko(event);
return true;
}
private void cancelTouch() {
GeckoEvent e = GeckoEvent.createBroadcastEvent("Gesture:CancelTouch", "");
GeckoAppShell.sendEventToGecko(e);
}
