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authorChristian Persch <chpe@cvs.gnome.org>2005-05-31 22:36:51 +0800
committerChristian Persch <chpe@src.gnome.org>2005-05-31 22:36:51 +0800
commit65d72dadd8762f9d86c2a1f28a4af0c8dc784973 (patch)
tree1194ed95470fb750128f364aff0c58224a0906e0 /embed/mozilla/EphyBrowser.cpp
parent30457fd1bc79dfc4e2fc36a165de0abf1b1d5b77 (diff)
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Add scroll event listener, and change zoom on scroll+wheel events.
2005-05-31 Christian Persch <chpe@cvs.gnome.org> * data/default-prefs-common.js: * embed/mozilla/EphyBrowser.cpp: * embed/mozilla/EphyBrowser.h: Add scroll event listener, and change zoom on scroll+wheel events. * lib/ephy-zoom.c: (ephy_zoom_get_changed_zoom_level): * lib/ephy-zoom.h: Fix signed/unsigned integer problems (underflow).
Diffstat (limited to 'embed/mozilla/EphyBrowser.cpp')
-rw-r--r--embed/mozilla/EphyBrowser.cpp55
1 files changed, 55 insertions, 0 deletions
diff --git a/embed/mozilla/EphyBrowser.cpp b/embed/mozilla/EphyBrowser.cpp
index 24258db6b..5266a5ece 100644
--- a/embed/mozilla/EphyBrowser.cpp
+++ b/embed/mozilla/EphyBrowser.cpp
@@ -28,6 +28,7 @@
#include "EventContext.h"
#include "ephy-embed.h"
#include "ephy-string.h"
+#include "ephy-zoom.h"
#include "ephy-debug.h"
#include "print-dialog.h"
#include "mozilla-embed.h"
@@ -102,6 +103,7 @@
const static PRUnichar kDOMLinkAdded[] = { 'D', 'O', 'M', 'L', 'i', 'n', 'k', 'A', 'd', 'd', 'e', 'd', '\0' };
const static PRUnichar kDOMContentLoaded[] = { 'D', 'O', 'M', 'C', 'o', 'n', 't', 'e', 'n', 't', 'L', 'o', 'a', 'd', 'e', 'd', '\0' };
const static PRUnichar kContextMenu[] = { 'c', 'o', 'n', 't', 'e', 'x', 't', 'm', 'e', 'n', 'u', '\0' };
+const static PRUnichar kDOMMouseScroll[] = { 'D', 'O', 'M', 'M', 'o', 'u', 's', 'e', 'S', 'c', 'r', 'o', 'l', 'l', '\0' };
const static PRUnichar kDOMPopupBlocked[] = { 'D', 'O', 'M', 'P', 'o', 'p', 'u', 'p', 'B', 'l', 'o', 'c', 'k', 'e', 'd', '\0' };
const static PRUnichar kDOMWillOpenModalDialog[] = { 'D', 'O', 'M', 'W', 'i', 'l', 'l', 'O', 'p', 'e', 'n', 'M', 'o', 'd', 'a', 'l', 'D', 'i', 'a', 'l', 'o', 'g', '\0' };
const static PRUnichar kDOMModalDialogClosed[] = { 'D', 'O', 'M', 'M', 'o', 'd', 'a', 'l', 'D', 'i', 'a', 'l', 'o', 'g', 'C', 'l', 'o', 's', 'e', 'd', '\0' };
@@ -387,6 +389,49 @@ EphyModalAlertEventListener::HandleEvent (nsIDOMEvent * aDOMEvent)
return NS_OK;
}
+NS_IMETHODIMP
+EphyDOMScrollEventListener::HandleEvent (nsIDOMEvent * aEvent)
+{
+ /* make sure the event is trusted */
+ nsresult rv;
+ nsCOMPtr<nsIDOMNSEvent> nsEvent (do_QueryInterface (aEvent, &rv));
+ NS_ENSURE_SUCCESS (rv, rv);
+ PRBool isTrusted = PR_FALSE;
+ nsEvent->GetIsTrusted (&isTrusted);
+ if (!isTrusted) return NS_OK;
+
+ nsCOMPtr<nsIDOMMouseEvent> mouseEvent (do_QueryInterface (aEvent, &rv));
+ NS_ENSURE_SUCCESS (rv, rv);
+
+ PRBool isAlt = PR_FALSE, isControl = PR_FALSE, isShift = PR_FALSE;
+ mouseEvent->GetAltKey (&isAlt);
+ mouseEvent->GetCtrlKey (&isControl);
+ mouseEvent->GetShiftKey (&isShift);
+ /* GetMetaKey is always false on gtk2 mozilla */
+
+ if (isControl && !isAlt && !isShift)
+ {
+ PRInt32 detail = 0;
+ mouseEvent->GetDetail(&detail);
+
+ float zoom, new_zoom;
+ rv = mOwner->GetZoom (&zoom);
+ NS_ENSURE_SUCCESS (rv, rv);
+
+ zoom = ephy_zoom_get_changed_zoom_level (zoom, detail > 0 ? 1 : detail < 0 ? -1 : 0);
+ rv = mOwner->SetZoom (zoom);
+ if (NS_SUCCEEDED (rv))
+ {
+ g_signal_emit_by_name (mOwner->mEmbed, "ge_zoom_change", zoom);
+ }
+
+ /* we consumed the event */
+ aEvent->PreventDefault();
+ }
+
+ return NS_OK;
+}
+
NS_IMPL_ISUPPORTS1(EphyContextMenuListener, nsIDOMContextMenuListener)
NS_IMETHODIMP
@@ -465,6 +510,7 @@ EphyContextMenuListener::HandleEvent (nsIDOMEvent* aDOMEvent)
EphyBrowser::EphyBrowser ()
: mDOMLinkEventListener(nsnull)
, mDOMContentLoadedEventListener(nsnull)
+, mDOMScrollEventListener(nsnull)
, mPopupBlockEventListener(nsnull)
, mModalAlertListener(nsnull)
, mContextMenuListener(nsnull)
@@ -503,6 +549,9 @@ nsresult EphyBrowser::Init (GtkMozEmbed *mozembed)
mDOMContentLoadedEventListener = new EphyDOMContentLoadedEventListener(this);
if (!mDOMContentLoadedEventListener) return NS_ERROR_OUT_OF_MEMORY;
+ mDOMScrollEventListener = new EphyDOMScrollEventListener(this);
+ if (!mDOMScrollEventListener) return NS_ERROR_OUT_OF_MEMORY;
+
mPopupBlockEventListener = new EphyPopupBlockEventListener(this);
if (!mPopupBlockEventListener) return NS_ERROR_OUT_OF_MEMORY;
@@ -601,10 +650,14 @@ EphyBrowser::AttachListeners(void)
mDOMLinkEventListener, PR_FALSE);
rv |= mEventTarget->AddEventListener(nsEmbedString(kDOMContentLoaded),
mDOMContentLoadedEventListener, PR_FALSE);
+ rv |= mEventTarget->AddEventListener(nsEmbedString(kDOMMouseScroll),
+ mDOMScrollEventListener, PR_TRUE); /* capture */
rv |= mEventTarget->AddEventListener(nsEmbedString(kDOMPopupBlocked),
mPopupBlockEventListener, PR_FALSE);
rv |= mEventTarget->AddEventListener(nsEmbedString(kDOMWillOpenModalDialog),
mModalAlertListener, PR_TRUE);
+ rv |= mEventTarget->AddEventListener(nsEmbedString(kDOMMouseScroll),
+ mDOMScrollEventListener, PR_TRUE);
rv |= mEventTarget->AddEventListener(nsEmbedString(kDOMModalDialogClosed),
mModalAlertListener, PR_TRUE);
rv |= mEventTarget->AddEventListener(nsEmbedString(kContextMenu),
@@ -624,6 +677,8 @@ EphyBrowser::DetachListeners(void)
mDOMLinkEventListener, PR_FALSE);
rv |= mEventTarget->RemoveEventListener(nsEmbedString(kDOMContentLoaded),
mDOMContentLoadedEventListener, PR_FALSE);
+ rv |= mEventTarget->RemoveEventListener(nsEmbedString(kDOMMouseScroll),
+ mDOMScrollEventListener, PR_TRUE); /* capture */
rv |= mEventTarget->RemoveEventListener(nsEmbedString(kDOMPopupBlocked),
mPopupBlockEventListener, PR_FALSE);
rv |= mEventTarget->RemoveEventListener(nsEmbedString(kDOMWillOpenModalDialog),