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Adding support for recording the visible rect and auto-scrolling.

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This commit is contained in:
Derek Sollenberger
2009-06-22 11:39:40 -04:00
parent 6cd7c86a8e
commit 5b011e35fb
3 changed files with 66 additions and 2 deletions
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47
samples/BrowserPlugin/jni/animation/AnimationPlugin.cpp
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@@ -37,6 +37,7 @@ extern ANPCanvasInterfaceV0 gCanvasI;
extern ANPPaintInterfaceV0 gPaintI;
extern ANPPathInterfaceV0 gPathI;
extern ANPTypefaceInterfaceV0 gTypefaceI;
extern ANPWindowInterfaceV0 gWindowI;
static void inval(NPP instance) {
browser->invalidaterect(instance, NULL);
@@ -101,7 +102,7 @@ BallAnimation::BallAnimation(NPP inst) : SubPlugin(inst) {
gTypefaceI.unref(tf);
//register for key and touch events
ANPEventFlags flags = kKey_ANPEventFlag | kTouch_ANPEventFlag;
ANPEventFlags flags = kKey_ANPEventFlag | kTouch_ANPEventFlag | kVisibleRect_ANPEventFlag;
NPError err = browser->setvalue(inst, kAcceptEvents_ANPSetValue, &flags);
if (err != NPERR_NO_ERROR) {
gLogI.log(inst, kError_ANPLogType, "Error selecting input events.");
@@ -186,6 +187,39 @@ void BallAnimation::draw(ANPCanvas* canvas) {
}
}
void BallAnimation::centerPluginOnScreen() {
NPP instance = this->inst();
PluginObject *obj = (PluginObject*) instance->pdata;
NPWindow *window = obj->window;
//find global (x,y) coordinates for center of the plugin
int pluginCenterX = window->x + (window->width / 2);
int pluginCenterY = window->y + (window->height / 2);
gLogI.log(instance, kDebug_ANPLogType, "---- %p Plugin Center: %d,%d : %d,%d",
instance, pluginCenterX, pluginCenterY, window->x, window->y);
//find global (x,y) coordinates for center of the visible screen
int screenCenterX = m_scrollX + (m_screenW / 2);
int screenCenterY = m_scrollY + (m_screenH / 2);
gLogI.log(instance, kDebug_ANPLogType, "---- %p Screen Center: %d,%d : %d,%d",
instance, screenCenterX, screenCenterY, m_scrollX, m_scrollY);
//compute the delta of the two coordinates
int deltaX = pluginCenterX - screenCenterX;
int deltaY = pluginCenterY - screenCenterY;
gLogI.log(instance, kDebug_ANPLogType, "---- %p Centering: %d,%d : %d,%d",
instance, deltaX, deltaY, m_scrollX + deltaX, m_scrollY + deltaY);
//move the visible screen
//webviewCore...
// (m_scrollX + deltaX, m_scrollY + deltaY)
gWindowI.scrollTo(instance, m_scrollX + deltaX, m_scrollY + deltaY);
}
int16 BallAnimation::handleEvent(const ANPEvent* evt) {
NPP instance = this->inst();
@@ -206,7 +240,18 @@ int16 BallAnimation::handleEvent(const ANPEvent* evt) {
browser->invalidaterect(instance, NULL);
}
return 1;
case kTouch_ANPEventType:
if (kDown_ANPTouchAction == evt->data.touch.action) {
centerPluginOnScreen();
}
return 1;
case kVisibleRect_ANPEventType:
m_scrollX = evt->data.visibleRect.x;
m_scrollY = evt->data.visibleRect.y;
m_screenW = evt->data.visibleRect.width;
m_screenH = evt->data.visibleRect.height;
return 1;
default:
break;
}