From 380bdff5e4684901e33b1916b45406ae316a8bd5 Mon Sep 17 00:00:00 2001
From: "kenneth@webkit.org"
 <kenneth@webkit.org@268f45cc-cd09-0410-ab3c-d52691b4dbfc>
Date: Mon, 19 Dec 2011 14:27:47 +0000
Subject: [PATCH] First stab at upstreaming our virtual keyboard code

Reviewed by Simon Hausmann.

Add basic implementation of inputMethodEvent

* UIProcess/qt/QtWebPageEventHandler.cpp:
(QtWebPageEventHandler::handleEvent):
(QtWebPageEventHandler::inputMethodEvent):
* UIProcess/qt/QtWebPageEventHandler.h:

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@103233 268f45cc-cd09-0410-ab3c-d52691b4dbfc
---
 Source/WebKit2/ChangeLog                      | 13 ++++
 .../UIProcess/qt/QtWebPageEventHandler.cpp    | 67 +++++++++++++++++++
 .../UIProcess/qt/QtWebPageEventHandler.h      |  2 +
 3 files changed, 82 insertions(+)

diff --git a/Source/WebKit2/ChangeLog b/Source/WebKit2/ChangeLog
index 5c6d0a560e60..0c3f6f5f7d1e 100644
--- a/Source/WebKit2/ChangeLog
+++ b/Source/WebKit2/ChangeLog
@@ -1,3 +1,16 @@
+2011-12-19  Kenneth Rohde Christiansen  <kenneth@webkit.org>
+
+        First stab at upstreaming our virtual keyboard code
+
+        Reviewed by Simon Hausmann.
+
+        Add basic implementation of inputMethodEvent
+
+        * UIProcess/qt/QtWebPageEventHandler.cpp:
+        (QtWebPageEventHandler::handleEvent):
+        (QtWebPageEventHandler::inputMethodEvent):
+        * UIProcess/qt/QtWebPageEventHandler.h:
+
 2011-12-19  Simon Hausmann  <simon.hausmann@nokia.com>
 
         [Qt][WK2] Add support for modal event loop processing for WTR
diff --git a/Source/WebKit2/UIProcess/qt/QtWebPageEventHandler.cpp b/Source/WebKit2/UIProcess/qt/QtWebPageEventHandler.cpp
index 7b9748b65c1f..bba4f84e152c 100644
--- a/Source/WebKit2/UIProcess/qt/QtWebPageEventHandler.cpp
+++ b/Source/WebKit2/UIProcess/qt/QtWebPageEventHandler.cpp
@@ -32,8 +32,10 @@
 #include <QMimeData>
 #include <QtQuick/QQuickCanvas>
 #include <QStyleHints>
+#include <QTextFormat>
 #include <QTouchEvent>
 #include <WebCore/DragData.h>
+#include <WebCore/Editor.h>
 
 using namespace WebKit;
 using namespace WebCore;
@@ -135,6 +137,9 @@ bool QtWebPageEventHandler::handleEvent(QEvent* ev)
     case QEvent::TouchUpdate:
         touchEvent(static_cast<QTouchEvent*>(ev));
         return true;
+    case QEvent::InputMethod:
+        inputMethodEvent(static_cast<QInputMethodEvent*>(ev));
+        return false; // Look at comment in qquickwebpage.cpp
     }
 
     // FIXME: Move all common event handling here.
@@ -311,6 +316,68 @@ void QtWebPageEventHandler::setViewportInteractionEngine(QtViewportInteractionEn
     m_interactionEngine = engine;
 }
 
+void QtWebPageEventHandler::inputMethodEvent(QInputMethodEvent* ev)
+{
+    QString commit = ev->commitString();
+    QString composition = ev->preeditString();
+
+    // NOTE: We might want to handle events of one char as special
+    // and resend them as key events to make web site completion work.
+
+    int cursorPositionWithinComposition = 0;
+
+    Vector<CompositionUnderline> underlines;
+
+    for (int i = 0; i < ev->attributes().size(); ++i) {
+        const QInputMethodEvent::Attribute& attr = ev->attributes().at(i);
+        switch (attr.type) {
+        case QInputMethodEvent::TextFormat: {
+            if (composition.isEmpty())
+                break;
+
+            QTextCharFormat textCharFormat = attr.value.value<QTextFormat>().toCharFormat();
+            QColor qcolor = textCharFormat.underlineColor();
+            Color color = makeRGBA(qcolor.red(), qcolor.green(), qcolor.blue(), qcolor.alpha());
+            int start = qMin(attr.start, (attr.start + attr.length));
+            int end = qMax(attr.start, (attr.start + attr.length));
+            underlines.append(CompositionUnderline(start, end, color, false));
+            break;
+        }
+        case QInputMethodEvent::Cursor:
+            if (attr.length)
+                cursorPositionWithinComposition = attr.start;
+            break;
+        // Selection is handled further down.
+        default: break;
+        }
+    }
+
+    if (composition.isEmpty()) {
+        int selectionStart = -1;
+        int selectionLength = 0;
+        for (int i = 0; i < ev->attributes().size(); ++i) {
+            const QInputMethodEvent::Attribute& attr = ev->attributes().at(i);
+            if (attr.type == QInputMethodEvent::Selection) {
+                selectionStart = attr.start;
+                selectionLength = attr.length;
+
+                ASSERT(selectionStart >= 0);
+                ASSERT(selectionLength >= 0);
+                break;
+            }
+        }
+
+        // FIXME: Confirm the composition here.
+    } else {
+        ASSERT(cursorPositionWithinComposition >= 0);
+        ASSERT(replacementStart >= 0);
+
+        // FIXME: Set the composition here.
+    }
+
+    ev->accept();
+}
+
 void QtWebPageEventHandler::touchEvent(QTouchEvent* event)
 {
 #if ENABLE(TOUCH_EVENTS)
diff --git a/Source/WebKit2/UIProcess/qt/QtWebPageEventHandler.h b/Source/WebKit2/UIProcess/qt/QtWebPageEventHandler.h
index 1e1590f1f74b..dfab4c8b9716 100644
--- a/Source/WebKit2/UIProcess/qt/QtWebPageEventHandler.h
+++ b/Source/WebKit2/UIProcess/qt/QtWebPageEventHandler.h
@@ -28,6 +28,7 @@
 #include "WebPageProxy.h"
 #include <QBasicTimer>
 #include <QKeyEvent>
+#include <QInputMethodEvent>
 #include <QTouchEvent>
 #include <WKPage.h>
 
@@ -85,6 +86,7 @@ private:
     void timerEvent(QTimerEvent*);
 
     void touchEvent(QTouchEvent*);
+    void inputMethodEvent(QInputMethodEvent*);
 
     QPoint m_lastClick;
     QBasicTimer m_clickTimer;
-- 
2.36.0