bool WebPage::handleEditingKeyboardEvent(KeyboardEvent* evt)
{
Node* node = evt->target()->toNode();
ASSERT(node);
Frame* frame = node->document()->frame();
ASSERT(frame);
const PlatformKeyboardEvent* keyEvent = evt->keyEvent();
if (!keyEvent)
return false;
Editor::Command command = frame->editor()->command(interpretKeyEvent(evt));
if (keyEvent->type() == PlatformKeyboardEvent::RawKeyDown) {
// WebKit doesn't have enough information about mode to decide how commands that just insert text if executed via Editor should be treated,
// so we leave it upon WebCore to either handle them immediately (e.g. Tab that changes focus) or let a keypress event be generated
// (e.g. Tab that inserts a Tab character, or Enter).
return !command.isTextInsertion() && command.execute(evt);
}
if (command.execute(evt))
return true;
// Don't insert null or control characters as they can result in unexpected behaviour
if (evt->charCode() < ' ')
return false;
return frame->editor()->insertText(evt->keyEvent()->text(), evt);
}
bool EditorClientWx::handleEditingKeyboardEvent(KeyboardEvent* event)
{
Node* node = event->target()->toNode();
ASSERT(node);
Frame* frame = node->document()->frame();
ASSERT(frame);
const PlatformKeyboardEvent* keyEvent = event->keyEvent();
//NB: this is what windows does, but they also have a keypress event for Alt+Enter which clearly won't get hit with this
if (!keyEvent || keyEvent->altKey()) // do not treat this as text input if Alt is down
return false;
Editor::Command command = frame->editor()->command(interpretKeyEvent(event));
if (keyEvent->type() == PlatformEvent::RawKeyDown) {
// WebKit doesn't have enough information about mode to decide how commands that just insert text if executed via Editor should be treated,
// so we leave it upon WebCore to either handle them immediately (e.g. Tab that changes focus) or if not to let a CHAR event be generated
// (e.g. Tab that inserts a Tab character, or Enter).
return !command.isTextInsertion() && command.execute(event);
}
if (command.execute(event))
return true;
// Don't insert null or control characters as they can result in unexpected behaviour
if (event->charCode() < ' ')
return false;
return frame->editor()->insertText(event->keyEvent()->text(), event);
}
void EditorClientAndroid::handleKeyboardEvent(KeyboardEvent* event) {
ASSERT(m_page);
Frame* frame = m_page->focusController()->focusedOrMainFrame();
if (!frame)
return;
const PlatformKeyboardEvent* keyEvent = event->keyEvent();
// TODO: If the event is not coming from Android Java, e.g. from JavaScript,
// PlatformKeyboardEvent is null. We should support this later.
if (!keyEvent)
return;
Editor::Command command = frame->editor()->command(interpretKeyEvent(event));
if (keyEvent->type() == PlatformKeyboardEvent::RawKeyDown) {
if (!command.isTextInsertion() && command.execute(event)) {
// This function mimics the Windows version. However, calling event->setDefaultHandled()
// prevents the javascript key events for the delete key from happening.
// Update: Safari doesn't send delete key events to javascript so
// we will mimic that behavior.
event->setDefaultHandled();
}
return;
}
if (command.execute(event)) {
event->setDefaultHandled();
return;
}
// Don't insert null or control characters as they can result in unexpected behaviour
if (event->charCode() < ' ')
return;
if (frame->editor()->insertText(keyEvent->text(), event))
event->setDefaultHandled();
}
static void handleKeyDown(Frame& frame, KeyboardEvent& event, const PlatformKeyboardEvent&)
{
String commandName = interpretKeyEvent(event);
if (commandName.isEmpty())
return;
// We shouldn't insert text through the editor. Let WebCore decide
// how to handle that (say, Tab, which could also be used to
// change focus).
Editor::Command command = frame.editor().command(commandName);
if (command.isTextInsertion())
return;
command.execute();
event.setDefaultHandled();
}
bool EditorClientWinCE::handleEditingKeyboardEvent(KeyboardEvent* event)
{
Node* node = event->target()->toNode();
ASSERT(node);
Frame* frame = node->document()->frame();
ASSERT(frame);
const PlatformKeyboardEvent* keyEvent = event->keyEvent();
if (!keyEvent)
return false;
bool caretBrowsing = frame->settings()->caretBrowsingEnabled();
if (caretBrowsing) {
switch (keyEvent->windowsVirtualKeyCode()) {
case VK_LEFT:
frame->selection()->modify(keyEvent->shiftKey() ? FrameSelection::AlterationExtend : FrameSelection::AlterationMove,
DirectionLeft,
keyEvent->ctrlKey() ? WordGranularity : CharacterGranularity,
UserTriggered);
return true;
case VK_RIGHT:
frame->selection()->modify(keyEvent->shiftKey() ? FrameSelection::AlterationExtend : FrameSelection::AlterationMove,
DirectionRight,
keyEvent->ctrlKey() ? WordGranularity : CharacterGranularity,
UserTriggered);
return true;
case VK_UP:
frame->selection()->modify(keyEvent->shiftKey() ? FrameSelection::AlterationExtend : FrameSelection::AlterationMove,
DirectionBackward,
keyEvent->ctrlKey() ? ParagraphGranularity : LineGranularity,
UserTriggered);
return true;
case VK_DOWN:
frame->selection()->modify(keyEvent->shiftKey() ? FrameSelection::AlterationExtend : FrameSelection::AlterationMove,
DirectionForward,
keyEvent->ctrlKey() ? ParagraphGranularity : LineGranularity,
UserTriggered);
return true;
}
}
Editor::Command command = frame->editor()->command(interpretKeyEvent(event));
if (keyEvent->type() == PlatformEvent::RawKeyDown) {
// WebKit doesn't have enough information about mode to decide how commands that just insert text if executed via Editor should be treated,
// so we leave it upon WebCore to either handle them immediately (e.g. Tab that changes focus) or let a keypress event be generated
// (e.g. Tab that inserts a Tab character, or Enter).
return !command.isTextInsertion() && command.execute(event);
}
if (command.execute(event))
return true;
// Don't insert null or control characters as they can result in unexpected behaviour
if (event->charCode() < ' ')
return false;
// Don't insert anything if a modifier is pressed
if (keyEvent->ctrlKey() || keyEvent->altKey())
return false;
return frame->editor()->insertText(event->keyEvent()->text(), event);
}
bool EditorClientImpl::handleEditingKeyboardEvent(KeyboardEvent* evt)
{
const PlatformKeyboardEvent* keyEvent = evt->keyEvent();
// do not treat this as text input if it's a system key event
if (!keyEvent || keyEvent->isSystemKey())
return false;
Frame* frame = evt->target()->toNode()->document()->frame();
if (!frame)
return false;
String commandName = interpretKeyEvent(evt);
Editor::Command command = frame->editor()->command(commandName);
if (keyEvent->type() == PlatformEvent::RawKeyDown) {
// WebKit doesn't have enough information about mode to decide how
// commands that just insert text if executed via Editor should be treated,
// so we leave it upon WebCore to either handle them immediately
// (e.g. Tab that changes focus) or let a keypress event be generated
// (e.g. Tab that inserts a Tab character, or Enter).
if (command.isTextInsertion() || commandName.isEmpty())
return false;
if (command.execute(evt)) {
if (m_webView->client())
m_webView->client()->didExecuteCommand(WebString(commandName));
return true;
}
return false;
}
if (command.execute(evt)) {
if (m_webView->client())
m_webView->client()->didExecuteCommand(WebString(commandName));
return true;
}
// Here we need to filter key events.
// On Gtk/Linux, it emits key events with ASCII text and ctrl on for ctrl-<x>.
// In Webkit, EditorClient::handleKeyboardEvent in
// WebKit/gtk/WebCoreSupport/EditorClientGtk.cpp drop such events.
// On Mac, it emits key events with ASCII text and meta on for Command-<x>.
// These key events should not emit text insert event.
// Alt key would be used to insert alternative character, so we should let
// through. Also note that Ctrl-Alt combination equals to AltGr key which is
// also used to insert alternative character.
// http://code.google.com/p/chromium/issues/detail?id=10846
// Windows sets both alt and meta are on when "Alt" key pressed.
// http://code.google.com/p/chromium/issues/detail?id=2215
// Also, we should not rely on an assumption that keyboards don't
// send ASCII characters when pressing a control key on Windows,
// which may be configured to do it so by user.
// See also http://en.wikipedia.org/wiki/Keyboard_Layout
// FIXME(ukai): investigate more detail for various keyboard layout.
if (evt->keyEvent()->text().length() == 1) {
UChar ch = evt->keyEvent()->text()[0U];
// Don't insert null or control characters as they can result in
// unexpected behaviour
if (ch < ' ')
return false;
#if !OS(WINDOWS)
// Don't insert ASCII character if ctrl w/o alt or meta is on.
// On Mac, we should ignore events when meta is on (Command-<x>).
if (ch < 0x80) {
if (evt->keyEvent()->ctrlKey() && !evt->keyEvent()->altKey())
return false;
#if OS(DARWIN)
if (evt->keyEvent()->metaKey())
return false;
#endif
}
#endif
}
if (!frame->editor()->canEdit())
return false;
return frame->editor()->insertText(evt->keyEvent()->text(), evt);
}