mozilla
/
pjs
зеркало из https://github.com/mozilla/pjs.git
1
0
Форкнуть 0
Код Задачи Пакеты Проекты Релизы Вики Активность

Moving view selection for event handling into nsViewManager, Adding GrabMouseEvents and GrabKeyEvents

This commit is contained in:
joki%netscape.com 1998-08-19 05:35:20 +00:00
Родитель 8865f7ea88
Коммит a3d9156246
5 изменённых файлов: 147 добавлений и 178 удалений
Показать статистику Скачать Patch файл Скачать Diff файл Показать все файлы Свернуть все файлы

2
view/public/nsIViewManager.h
Просмотреть файл

@ -168,7 +168,7 @@ public:
* @param event event to dispatch
* @result event handling status
*/
virtual PRBool DispatchEvent(nsIEvent *event) = 0;
virtual nsEventStatus DispatchEvent(nsGUIEvent *aEvent) = 0;
/**
* Used to grab/capture all mouse events for a specific view,

3
view/src/nsScrollingView.cpp
Просмотреть файл

@ -57,7 +57,7 @@ ScrollBarView :: ~ScrollBarView()
nsEventStatus ScrollBarView :: HandleEvent(nsGUIEvent *aEvent, PRUint32 aEventFlags)
{
nsEventStatus retval;
nsEventStatus retval = nsEventStatus_eIgnore;
switch (aEvent->message)
{
@ -73,7 +73,6 @@ nsEventStatus ScrollBarView :: HandleEvent(nsGUIEvent *aEvent, PRUint32 aEventFl
break;
default:
retval = nsEventStatus_eIgnore;
break;
}

161
view/src/nsView.cpp
Просмотреть файл

@ -44,116 +44,13 @@ nsEventStatus PR_CALLBACK HandleEvent(nsGUIEvent *aEvent)
{
//printf(" %d %d %d (%d,%d) \n", aEvent->widget, aEvent->widgetSupports,
// aEvent->message, aEvent->point.x, aEvent->point.y);
nsIView* view = nsView::GetViewFor(aEvent->widget);
nsEventStatus result = nsEventStatus_eIgnore;
if (nsnull != view)
{
switch(aEvent->message)
{
case NS_SIZE:
{
nscoord width = ((nsSizeEvent*)aEvent)->windowSize->width;
nscoord height = ((nsSizeEvent*)aEvent)->windowSize->height;
// Inform the view manager that the root window has been resized
nsIViewManager* vm = view->GetViewManager();
nsIPresContext* presContext = vm->GetPresContext();
// The root view may not be set if this is the resize associated with
// window creation
nsIView* rootView = vm->GetRootView();
if (view == rootView)
{
// Convert from pixels to twips
float p2t = presContext->GetPixelsToTwips();
nsIScrollableView *scrollView;
//XXX hey look, a hack! :) i'm not proud of it, but it does
//work. the purpose is to prevent resizes of the view if the
//clip size (assumed to be the size of this window) is the same
//as the new size we get here. MMP
if (NS_OK == rootView->QueryInterface(kIScrollableViewIID, (void **)&scrollView))
{
nscoord sizex, sizey;
float t2p = presContext->GetTwipsToPixels();
scrollView->GetClipSize(&sizex, &sizey);
if ((width == NSTwipsToIntPixels(sizex, t2p)) &&
(height == NSTwipsToIntPixels(sizey, t2p)))
{
NS_RELEASE(presContext);
NS_RELEASE(vm);
break;
}
}
vm->SetWindowDimensions(NSIntPixelsToTwips(width, p2t),
NSIntPixelsToTwips(height, p2t));
result = nsEventStatus_eConsumeNoDefault;
}
NS_RELEASE(presContext);
NS_RELEASE(vm);
break;
}
case NS_PAINT:
{
nsIViewManager *vm = view->GetViewManager();
nsIPresContext *px = vm->GetPresContext();
float convert = px->GetPixelsToTwips();
nsRect trect = *((nsPaintEvent*)aEvent)->rect;
nsIDeviceContext *dx = px->GetDeviceContext();
trect *= convert;
//printf("damage repair...\n");
vm->UpdateView(view, trect,
NS_VMREFRESH_SCREEN_RECT |
NS_VMREFRESH_IMMEDIATE |
NS_VMREFRESH_AUTO_DOUBLE_BUFFER);
NS_RELEASE(dx);
NS_RELEASE(px);
NS_RELEASE(vm);
result = nsEventStatus_eConsumeNoDefault;
break;
}
case NS_DESTROY:
result = nsEventStatus_eConsumeNoDefault;
break;
default:
nsIViewManager *vm = view->GetViewManager();
nsIPresContext *cx = vm->GetPresContext();
// pass on to view somewhere else to deal with
aEvent->point.x = NSIntPixelsToTwips(aEvent->point.x, cx->GetPixelsToTwips());
aEvent->point.y = NSIntPixelsToTwips(aEvent->point.y, cx->GetPixelsToTwips());
result = view->HandleEvent(aEvent, NS_VIEW_FLAG_CHECK_CHILDREN |
NS_VIEW_FLAG_CHECK_PARENT |
NS_VIEW_FLAG_CHECK_SIBLINGS);
aEvent->point.x = NSTwipsToIntPixels(aEvent->point.x, cx->GetTwipsToPixels());
aEvent->point.y = NSTwipsToIntPixels(aEvent->point.y, cx->GetTwipsToPixels());
NS_RELEASE(cx);
NS_RELEASE(vm);
break;
}
nsIView* view = nsView::GetViewFor(aEvent->widget);
if (nsnull != view) {
nsIViewManager* vm = view->GetViewManager();
result = vm->DispatchEvent(aEvent);
NS_RELEASE(vm);
}
return result;
@ -590,9 +487,7 @@ nsEventStatus nsView :: HandleEvent(nsGUIEvent *event, PRUint32 aEventFlags)
nsEventStatus retval = nsEventStatus_eIgnore;
//see if any of this view's children can process the event
if ((aEventFlags & NS_VIEW_FLAG_CHECK_CHILDREN) &&
(retval == nsEventStatus_eIgnore))
{
if (retval == nsEventStatus_eIgnore) {
PRInt32 numkids = GetChildCount();
nsRect trect;
nscoord x, y;
@ -604,7 +499,7 @@ nsEventStatus nsView :: HandleEvent(nsGUIEvent *event, PRUint32 aEventFlags)
{
nsIView *pKid = GetChild(cnt);
nscoord lx, ly;
pKid->GetBounds(trect);
lx = x - trect.x;
@ -631,7 +526,7 @@ nsEventStatus nsView :: HandleEvent(nsGUIEvent *event, PRUint32 aEventFlags)
}
//if the view's children didn't take the event, check the view itself.
if ((retval == nsEventStatus_eIgnore) && (nsnull != mFrame))
if (retval == nsEventStatus_eIgnore && nsnull != mFrame)
{
nsIPresContext *cx = mViewManager->GetPresContext();
nscoord xoff, yoff;
@ -649,44 +544,6 @@ nsEventStatus nsView :: HandleEvent(nsGUIEvent *event, PRUint32 aEventFlags)
NS_RELEASE(cx);
}
//see if any of this views siblings can process this event
//we only go from the next sibling since this is a z-ordered
//list
if ((aEventFlags & NS_VIEW_FLAG_CHECK_SIBLINGS) &&
(retval == nsEventStatus_eIgnore))
{
nsIView *pNext = GetNextSibling();
while (pNext)
{
retval = pNext->HandleEvent(event, NS_VIEW_FLAG_CHECK_CHILDREN);
if (retval != PR_FALSE)
break;
pNext = pNext->GetNextSibling();
}
}
//no-one has a clue what to do with this... so ask the
//parents. kind of mimics life, huh?
if ((aEventFlags & NS_VIEW_FLAG_CHECK_PARENT) && (retval == nsEventStatus_eIgnore))
{
nsIView *pParent = GetParent();
while (pParent)
{
retval = pParent->HandleEvent(event, NS_VIEW_FLAG_CHECK_SIBLINGS);
if (retval == nsEventStatus_eIgnore)
break;
pParent = pParent->GetParent();
}
}
return retval;
}

155
view/src/nsViewManager.cpp
Просмотреть файл

@ -24,6 +24,9 @@
#include "nsGfxCIID.h"
#include "nsIScrollableView.h"
#include "nsIRegion.h"
#include "nsView.h"
static NS_DEFINE_IID(kIScrollableViewIID, NS_ISCROLLABLEVIEW_IID);
static const PRBool gsDebug = PR_FALSE;
@ -145,6 +148,9 @@ nsresult nsViewManager::Init(nsIPresContext* aPresContext)
mRefreshEnabled = PR_TRUE;
mMouseGrabber = nsnull;
mKeyGrabber = nsnull;
return rv;
}
@ -239,9 +245,7 @@ void nsViewManager :: GetWindowOffsets(nscoord *xoffset, nscoord *yoffset)
{
nsIScrollableView *scroller;
static NS_DEFINE_IID(kscroller, NS_ISCROLLABLEVIEW_IID);
if (NS_OK == mRootView->QueryInterface(kscroller, (void **)&scroller))
if (NS_OK == mRootView->QueryInterface(kIScrollableViewIID, (void **)&scroller))
{
scroller->GetVisibleOffset(xoffset, yoffset);
}
@ -258,9 +262,7 @@ void nsViewManager :: SetWindowOffsets(nscoord xoffset, nscoord yoffset)
{
nsIScrollableView *scroller;
static NS_DEFINE_IID(kscroller, NS_ISCROLLABLEVIEW_IID);
if (NS_OK == mRootView->QueryInterface(kscroller, (void **)&scroller))
if (NS_OK == mRootView->QueryInterface(kIScrollableViewIID, (void **)&scroller))
{
scroller->SetVisibleOffset(xoffset, yoffset);
}
@ -273,9 +275,7 @@ void nsViewManager :: ResetScrolling(void)
{
nsIScrollableView *scroller;
static NS_DEFINE_IID(kscroller, NS_ISCROLLABLEVIEW_IID);
if (NS_OK == mRootView->QueryInterface(kscroller, (void **)&scroller))
if (NS_OK == mRootView->QueryInterface(kIScrollableViewIID, (void **)&scroller))
{
scroller->ComputeContainerSize();
}
@ -592,29 +592,146 @@ void nsViewManager :: UpdateView(nsIView *aView, const nsRect &aRect, PRUint32 a
}
}
PRBool nsViewManager :: DispatchEvent(nsIEvent *event)
nsEventStatus nsViewManager :: DispatchEvent(nsGUIEvent *aEvent)
{
return PR_TRUE;
nsEventStatus result = nsEventStatus_eIgnore;
switch(aEvent->message)
{
case NS_SIZE:
{
nsIView* view = nsView::GetViewFor(aEvent->widget);
if (nsnull != view) {
nscoord width = ((nsSizeEvent*)aEvent)->windowSize->width;
nscoord height = ((nsSizeEvent*)aEvent)->windowSize->height;
// The root view may not be set if this is the resize associated with
// window creation
if (view == mRootView)
{
// Convert from pixels to twips
float p2t = mContext->GetPixelsToTwips();
nsIScrollableView *scrollView;
//XXX hey look, a hack! :) i'm not proud of it, but it does
//work. the purpose is to prevent resizes of the view if the
//clip size (assumed to be the size of this window) is the same
//as the new size we get here. MMP
if (NS_OK == mRootView->QueryInterface(kIScrollableViewIID, (void **)&scrollView))
{
nscoord sizex, sizey;
float t2p = mContext->GetTwipsToPixels();
scrollView->GetClipSize(&sizex, &sizey);
if ((width == NSTwipsToIntPixels(sizex, t2p)) &&
(height == NSTwipsToIntPixels(sizey, t2p)))
{
break;
}
}
SetWindowDimensions(NSIntPixelsToTwips(width, p2t),
NSIntPixelsToTwips(height, p2t));
result = nsEventStatus_eConsumeNoDefault;
}
}
break;
}
case NS_PAINT:
{
nsIView* view = nsView::GetViewFor(aEvent->widget);
if (nsnull != view) {
float convert = mContext->GetPixelsToTwips();
nsRect trect = *((nsPaintEvent*)aEvent)->rect;
nsIDeviceContext *dx = mContext->GetDeviceContext();
trect *= convert;
//printf("damage repair...\n");
UpdateView(view, trect,
NS_VMREFRESH_SCREEN_RECT |
NS_VMREFRESH_IMMEDIATE |
NS_VMREFRESH_AUTO_DOUBLE_BUFFER);
NS_RELEASE(dx);
result = nsEventStatus_eConsumeNoDefault;
}
break;
}
case NS_DESTROY:
result = nsEventStatus_eConsumeNoDefault;
break;
default:
{
nsIView* view;
if (nsnull != mMouseGrabber && NS_IS_MOUSE_EVENT(aEvent)) {
view = mMouseGrabber;
}
else if (nsnull != mKeyGrabber && NS_IS_KEY_EVENT(aEvent)) {
view = mKeyGrabber;
}
else {
view = nsView::GetViewFor(aEvent->widget);
}
if (nsnull != view) {
nsIViewManager *vm = view->GetViewManager();
nsIPresContext *cx = vm->GetPresContext();
// pass on to view somewhere else to deal with
aEvent->point.x = NSIntPixelsToTwips(aEvent->point.x, cx->GetPixelsToTwips());
aEvent->point.y = NSIntPixelsToTwips(aEvent->point.y, cx->GetPixelsToTwips());
result = view->HandleEvent(aEvent, NS_VIEW_FLAG_CHECK_CHILDREN |
NS_VIEW_FLAG_CHECK_PARENT |
NS_VIEW_FLAG_CHECK_SIBLINGS);
aEvent->point.x = NSTwipsToIntPixels(aEvent->point.x, cx->GetTwipsToPixels());
aEvent->point.y = NSTwipsToIntPixels(aEvent->point.y, cx->GetTwipsToPixels());
NS_RELEASE(cx);
NS_RELEASE(vm);
}
break;
}
}
return result;
}
PRBool nsViewManager :: GrabMouseEvents(nsIView *aView)
{
mMouseGrabber = aView;
return PR_TRUE;
}
PRBool nsViewManager :: GrabKeyEvents(nsIView *aView)
{
mKeyGrabber = aView;
return PR_TRUE;
}
nsIView * nsViewManager :: GetMouseEventGrabber()
{
return nsnull;
return mMouseGrabber;
}
nsIView * nsViewManager :: GetKeyEventGrabber()
{
return nsnull;
return mKeyGrabber;
}
void nsViewManager :: InsertChild(nsIView *parent, nsIView *child, nsIView *sibling,
@ -940,9 +1057,7 @@ void nsViewManager :: ShowQuality(PRBool aShow)
{
nsIScrollableView *scroller;
static NS_DEFINE_IID(kscroller, NS_ISCROLLABLEVIEW_IID);
if (NS_OK == mRootView->QueryInterface(kscroller, (void **)&scroller))
if (NS_OK == mRootView->QueryInterface(kIScrollableViewIID, (void **)&scroller))
{
scroller->ShowQuality(aShow);
}
@ -953,9 +1068,7 @@ PRBool nsViewManager :: GetShowQuality(void)
nsIScrollableView *scroller;
PRBool retval = PR_FALSE;
static NS_DEFINE_IID(kscroller, NS_ISCROLLABLEVIEW_IID);
if (NS_OK == mRootView->QueryInterface(kscroller, (void **)&scroller))
if (NS_OK == mRootView->QueryInterface(kIScrollableViewIID, (void **)&scroller))
{
retval = scroller->GetShowQuality();
}
@ -967,9 +1080,7 @@ void nsViewManager :: SetQuality(nsContentQuality aQuality)
{
nsIScrollableView *scroller;
static NS_DEFINE_IID(kscroller, NS_ISCROLLABLEVIEW_IID);
if (NS_OK == mRootView->QueryInterface(kscroller, (void **)&scroller))
if (NS_OK == mRootView->QueryInterface(kIScrollableViewIID, (void **)&scroller))
{
scroller->SetQuality(aQuality);
}

4
view/src/nsViewManager.h
Просмотреть файл

@ -64,7 +64,7 @@ public:
PRUint32 aUpdateFlags);
virtual void UpdateView(nsIView *aView, const nsRect &aRect, PRUint32 aUpdateFlags);
virtual PRBool DispatchEvent(nsIEvent *event);
virtual nsEventStatus DispatchEvent(nsGUIEvent *aEvent);
virtual PRBool GrabMouseEvents(nsIView *aView);
virtual PRBool GrabKeyEvents(nsIView *aView);
@ -132,6 +132,8 @@ private:
nsIRegion *mDirtyRegion;
PRInt32 mTransCnt;
PRBool mRefreshEnabled;
nsIView *mMouseGrabber;
nsIView *mKeyGrabber;
static PRUint32 mVMCount; //number of viewmanagers
static nsDrawingSurface mDrawingSurface; //single drawing surface