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Bug 1077515 - part 12 - Remap arrow keys in nsFormFillController so that the caret works properly in vertical-mode <input> elements. r=roc

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This commit is contained in:
Jonathan Kew 2014-11-22 14:39:05 +00:00
parent 6a598abe4a
commit 780f34be85
1 changed files with 31 additions and 0 deletions
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31
toolkit/components/satchel/nsFormFillController.cpp
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@ -36,6 +36,7 @@
#include "nsIDOMNSEditableElement.h"
#include "nsContentUtils.h"
#include "nsILoadContext.h"
#include "nsIFrame.h"
using namespace mozilla::dom;
@ -948,6 +949,36 @@ nsFormFillController::KeyPress(nsIDOMEvent* aEvent)
case nsIDOMKeyEvent::DOM_VK_DOWN:
case nsIDOMKeyEvent::DOM_VK_LEFT:
case nsIDOMKeyEvent::DOM_VK_RIGHT:
{
// Get the writing-mode of the relevant input element,
// so that we can remap arrow keys if necessary.
mozilla::WritingMode wm;
if (mFocusedInputNode && mFocusedInputNode->IsElement()) {
mozilla::dom::Element *elem = mFocusedInputNode->AsElement();
nsIFrame *frame = elem->GetPrimaryFrame();
if (frame) {
wm = frame->GetWritingMode();
}
}
if (wm.IsVertical()) {
switch (k) {
case nsIDOMKeyEvent::DOM_VK_LEFT:
k = wm.IsVerticalLR() ? nsIDOMKeyEvent::DOM_VK_UP
: nsIDOMKeyEvent::DOM_VK_DOWN;
break;
case nsIDOMKeyEvent::DOM_VK_RIGHT:
k = wm.IsVerticalLR() ? nsIDOMKeyEvent::DOM_VK_DOWN
: nsIDOMKeyEvent::DOM_VK_UP;
break;
case nsIDOMKeyEvent::DOM_VK_UP:
k = nsIDOMKeyEvent::DOM_VK_LEFT;
break;
case nsIDOMKeyEvent::DOM_VK_DOWN:
k = nsIDOMKeyEvent::DOM_VK_RIGHT;
break;
}
}
}
mController->HandleKeyNavigation(k, &cancel);
break;
case nsIDOMKeyEvent::DOM_VK_ESCAPE: