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Android: Place cursor correctly on screen when editing 

When editing text the cursor is not placed correctly. So this
has been achieved by tricking Android into thinking that the
input area is only the line where the cursor is, so it is
forced to keep it on screen.

Fixes: QTBUG-91073
Pick-to: 5.15
Change-Id: Icc2e8315deb76ca1a84819d3fdceaa7b027b1174
Reviewed-by: Ville Voutilainen <ville.voutilainen@qt.io>
bb10
Piotr Mikolajczyk 2020-12-18 10:51:30 +01:00 committed by Ville Voutilainen
parent 9fb81fc287
commit 5c6b10c3ce
7 changed files with 95 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
src/android/jar/src/org/qtproject/qt/android/QtActivityDelegate.java
View File

@ -280,7 +280,7 @@ public class QtActivityDelegate
}, 5);
}
public void showSoftwareKeyboard(final int x, final int y, final int width, final int height, final int inputHints, final int enterKeyType)
public void showSoftwareKeyboard(final int x, final int y, final int width, final int height, final int editorHeight, final int inputHints, final int enterKeyType)
{
if (m_imm == null)
return;
@ -302,7 +302,7 @@ public class QtActivityDelegate
if (softInputIsHidden)
return;
} else {
if (height > visibleHeight)
if (editorHeight > visibleHeight)
m_activity.getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_UNCHANGED | WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE);
else
m_activity.getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_UNCHANGED | WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN);
@ -419,12 +419,12 @@ public class QtActivityDelegate
if (metrics.widthPixels > metrics.heightPixels) { // landscape
if (m_landscapeKeyboardHeight != r.bottom) {
m_landscapeKeyboardHeight = r.bottom;
showSoftwareKeyboard(x, y, width, height, inputHints, enterKeyType);
showSoftwareKeyboard(x, y, width, height, editorHeight, inputHints, enterKeyType);
}
} else {
if (m_portraitKeyboardHeight != r.bottom) {
m_portraitKeyboardHeight = r.bottom;
showSoftwareKeyboard(x, y, width, height, inputHints, enterKeyType);
showSoftwareKeyboard(x, y, width, height, editorHeight, inputHints, enterKeyType);
}
}
} else {
@ -575,6 +575,13 @@ public class QtActivityDelegate
}
}
public void updateInputItemRectangle(final int x, final int y, final int w, final int h)
{
if (m_layout == null || m_editText == null || !m_keyboardIsVisible)
return;
m_layout.setLayoutParams(m_editText, new QtLayout.LayoutParams(w, h, x, y), true);
}
public boolean loadApplication(Activity activity, ClassLoader classLoader, Bundle loaderParams)
{
/// check parameters integrity

17
src/android/jar/src/org/qtproject/qt/android/QtNative.java
View File

@ -883,10 +883,25 @@ public class QtNative
});
}
private static void updateInputItemRectangle(final int x,
final int y,
final int w,
final int h)
{
runAction(new Runnable() {
@Override
public void run() {
m_activityDelegate.updateInputItemRectangle(x, y, w, h);
}
});
}
private static void showSoftwareKeyboard(final int x,
final int y,
final int width,
final int height,
final int editorHeight,
final int inputHints,
final int enterKeyType)
{
@ -894,7 +909,7 @@ public class QtNative
@Override
public void run() {
if (m_activityDelegate != null)
m_activityDelegate.showSoftwareKeyboard(x, y, width, height, inputHints, enterKeyType);
m_activityDelegate.showSoftwareKeyboard(x, y, width, height, editorHeight, inputHints, enterKeyType);
}
});
}

11
src/android/java/src/org/qtproject/qt/android/bindings/QtActivity.java
View File

@ -1074,6 +1074,11 @@ public class QtActivity extends Activity
QtNative.activityDelegate().resetSoftwareKeyboard();
}
public void updateInputItemRectangle(final int x, final int y, final int w, final int h)
{
QtNative.activityDelegate().updateInputItemRectangle(x, y, w, h);
}
public boolean setKeyboardVisibility(boolean visibility, long timeStamp)
{
return QtNative.activityDelegate().setKeyboardVisibility(visibility, timeStamp);
@ -1090,10 +1095,10 @@ public class QtActivity extends Activity
}
public void showSoftwareKeyboard(final int x, final int y, final int width,
final int height, final int inputHints,
final int enterKeyType)
final int height, final int editorHeight,
final int inputHints, final int enterKeyType)
{
QtNative.activityDelegate().showSoftwareKeyboard(x, y, width, height, inputHints, enterKeyType);
QtNative.activityDelegate().showSoftwareKeyboard(x, y, width, height, editorHeight, inputHints, enterKeyType);
}
public boolean startApplication()

16
src/plugins/platforms/android/androidjniinput.cpp
View File

@ -79,15 +79,16 @@ namespace QtAndroidInput
candidatesEnd);
}
void showSoftwareKeyboard(int left, int top, int width, int height, int inputHints, int enterKeyType)
void showSoftwareKeyboard(int left, int top, int width, int height, int editorHeight, int inputHints, int enterKeyType)
{
QJniObject::callStaticMethod<void>(applicationClass(),
"showSoftwareKeyboard",
"(IIIIII)V",
"(IIIIIII)V",
left,
top,
width,
height,
editorHeight,
inputHints,
enterKeyType);
#ifdef QT_DEBUG_ANDROID_IM_PROTOCOL
@ -129,6 +130,17 @@ namespace QtAndroidInput
anchor.x(), anchor.y(), rtl);
}
void updateInputItemRectangle(int left, int top, int width, int height)
{
QJniObject::callStaticMethod<void>(applicationClass(),
"updateInputItemRectangle",
"(IIII)V",
left,
top,
width,
height);
}
static void mouseDown(JNIEnv */*env*/, jobject /*thiz*/, jint /*winId*/, jint x, jint y)
{
if (m_ignoreMouseEvents)

4
src/plugins/platforms/android/androidjniinput.h
View File

@ -49,7 +49,7 @@ QT_BEGIN_NAMESPACE
namespace QtAndroidInput
{
// Software keyboard support
void showSoftwareKeyboard(int top, int left, int width, int height, int inputHints, int enterKeyType);
void showSoftwareKeyboard(int top, int left, int width, int editorHeight, int height, int inputHints, int enterKeyType);
void resetSoftwareKeyboard();
void hideSoftwareKeyboard();
bool isSoftwareKeyboardVisible();
@ -57,6 +57,8 @@ namespace QtAndroidInput
void updateSelection(int selStart, int selEnd, int candidatesStart, int candidatesEnd);
// Software keyboard support
// edit field resize
void updateInputItemRectangle(int left, int top, int width, int height);
// cursor/selection handles
void updateHandles(int handleCount, QPoint editMenuPos = QPoint(), uint32_t editButtons = 0,
QPoint cursor = QPoint(), QPoint anchor = QPoint(), bool rtl = false);

44
src/plugins/platforms/android/qandroidinputcontext.cpp
View File

@ -47,6 +47,7 @@
#include "qandroideventdispatcher.h"
#include "qandroidinputcontext.h"
#include "qandroidplatformintegration.h"
#include "private/qhighdpiscaling_p.h"
#include <QTextBoundaryFinder>
#include <QTextCharFormat>
@ -59,7 +60,6 @@
#include <qthread.h>
#include <qwindow.h>
#include <qpa/qplatformwindow.h>
QT_BEGIN_NAMESPACE
namespace {
@ -491,7 +491,7 @@ QAndroidInputContext::QAndroidInputContext()
m_androidInputContext = this;
QObject::connect(QGuiApplication::inputMethod(), &QInputMethod::cursorRectangleChanged,
this, &QAndroidInputContext::updateSelectionHandles);
this, &QAndroidInputContext::updateInputItemRectangle);
QObject::connect(QGuiApplication::inputMethod(), &QInputMethod::anchorRectangleChanged,
this, &QAndroidInputContext::updateSelectionHandles);
QObject::connect(QGuiApplication::inputMethod(), &QInputMethod::inputItemClipRectangleChanged, this, [this]{
@ -889,12 +889,50 @@ void QAndroidInputContext::showInputPanel()
else
m_updateCursorPosConnection = connect(qGuiApp->focusObject(), SIGNAL(cursorPositionChanged()), this, SLOT(updateCursorPosition()));
QRect rect = screenInputItemRectangle();
QRect rect = cursorRect();
QtAndroidInput::showSoftwareKeyboard(rect.left(), rect.top(), rect.width(), rect.height(),
screenInputItemRectangle().height(),
query->value(Qt::ImHints).toUInt(),
query->value(Qt::ImEnterKeyType).toUInt());
}
QRect QAndroidInputContext::cursorRect()
{
QSharedPointer<QInputMethodQueryEvent> query = focusObjectInputMethodQuery();
// if single line, we do not want to mess with the editor's position, as we do not
// have to follow the cursor in vertical axis
if (query.isNull()
|| (query->value(Qt::ImHints).toUInt() & Qt::ImhMultiLine) != Qt::ImhMultiLine)
return {};
auto im = qGuiApp->inputMethod();
if (!im)
return {};
const auto cursorRect= im->cursorRectangle().toRect();
QRect finalRect(inputItemRectangle().toRect());
const QWindow *window = qGuiApp->focusWindow();
const double pd = window
? QHighDpiScaling::factor(window)
: QHighDpiScaling::factor(QtAndroid::androidPlatformIntegration()->screen());
finalRect.setY(cursorRect.y() * pd);
finalRect.setHeight(cursorRect.height() * pd);
//fiddle a bit with vert margins, so the tracking rectangle is not too tight.
finalRect += QMargins(0, cursorRect.height() / 4, 0, cursorRect.height() / 4);
return finalRect;
}
void QAndroidInputContext::updateInputItemRectangle()
{
QRect rect = cursorRect();
if (!rect.isValid())
return;
QtAndroidInput::updateInputItemRectangle(rect.left(), rect.top(),
rect.width(), rect.height());
updateSelectionHandles();
}
void QAndroidInputContext::showInputPanelLater(Qt::ApplicationState state)
{
if (state != Qt::ApplicationActive)

2
src/plugins/platforms/android/qandroidinputcontext.h
View File

@ -138,6 +138,7 @@ public:
public slots:
void safeCall(const std::function<void()> &func, Qt::ConnectionType conType = Qt::BlockingQueuedConnection);
void updateCursorPosition();
void updateInputItemRectangle();
void updateSelectionHandles();
void handleLocationChanged(int handleId, int x, int y);
void touchDown(int x, int y);
@ -154,6 +155,7 @@ private:
bool focusObjectIsComposing() const;
void focusObjectStartComposing();
bool focusObjectStopComposing();
QRect cursorRect();
private:
ExtractedText m_extractedText;