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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/browser/renderer_host/ime_adapter_android.h"
#include <android/input.h>
#include "base/android/jni_android.h"
#include "base/android/jni_string.h"
#include "base/time.h"
#include "base/utf_string_conversions.h"
#include "content/browser/renderer_host/render_widget_host_impl.h"
#include "content/browser/renderer_host/render_widget_host_view_android.h"
#include "content/common/view_messages.h"
#include "content/public/browser/native_web_keyboard_event.h"
#include "jni/ImeAdapter_jni.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebCompositionUnderline.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebInputEvent.h"
using base::android::AttachCurrentThread;
using base::android::ConvertJavaStringToUTF16;
namespace content {
namespace {
// Maps a java KeyEvent into a NativeWebKeyboardEvent.
// |java_key_event| is used to maintain a globalref for KeyEvent.
// |action| will help determine the WebInputEvent type.
// type, |modifiers|, |time_ms|, |key_code|, |unicode_char| is used to create
// WebKeyboardEvent. |key_code| is also needed ad need to treat the enter key
// as a key press of character \r.
NativeWebKeyboardEvent NativeWebKeyboardEventFromKeyEvent(
JNIEnv* env,
jobject java_key_event,
int action,
int modifiers,
long time_ms,
int key_code,
bool is_system_key,
int unicode_char) {
WebKit::WebInputEvent::Type type = WebKit::WebInputEvent::Undefined;
if (action == AKEY_EVENT_ACTION_DOWN)
type = WebKit::WebInputEvent::RawKeyDown;
else if (action == AKEY_EVENT_ACTION_UP)
type = WebKit::WebInputEvent::KeyUp;
return NativeWebKeyboardEvent(java_key_event, type, modifiers,
time_ms, key_code, unicode_char, is_system_key);
}
} // anonymous namespace
bool RegisterImeAdapter(JNIEnv* env) {
if (!RegisterNativesImpl(env))
return false;
Java_ImeAdapter_initializeWebInputEvents(env,
WebKit::WebInputEvent::RawKeyDown,
WebKit::WebInputEvent::KeyUp,
WebKit::WebInputEvent::Char,
WebKit::WebInputEvent::ShiftKey,
WebKit::WebInputEvent::AltKey,
WebKit::WebInputEvent::ControlKey,
WebKit::WebInputEvent::CapsLockOn,
WebKit::WebInputEvent::NumLockOn);
// TODO(miguelg): remove date time related enums after
// https://bugs.webkit.org/show_bug.cgi?id=100935.
Java_ImeAdapter_initializeTextInputTypes(
env,
ui::TEXT_INPUT_TYPE_NONE,
ui::TEXT_INPUT_TYPE_TEXT,
ui::TEXT_INPUT_TYPE_TEXT_AREA,
ui::TEXT_INPUT_TYPE_PASSWORD,
ui::TEXT_INPUT_TYPE_SEARCH,
ui::TEXT_INPUT_TYPE_URL,
ui::TEXT_INPUT_TYPE_EMAIL,
ui::TEXT_INPUT_TYPE_TELEPHONE,
ui::TEXT_INPUT_TYPE_NUMBER,
ui::TEXT_INPUT_TYPE_DATE,
ui::TEXT_INPUT_TYPE_DATE_TIME,
ui::TEXT_INPUT_TYPE_DATE_TIME_LOCAL,
ui::TEXT_INPUT_TYPE_MONTH,
ui::TEXT_INPUT_TYPE_TIME,
ui::TEXT_INPUT_TYPE_WEEK,
ui::TEXT_INPUT_TYPE_CONTENT_EDITABLE);
return true;
}
ImeAdapterAndroid::ImeAdapterAndroid(RenderWidgetHostViewAndroid* rwhva)
: rwhva_(rwhva),
java_ime_adapter_(NULL) {
}
ImeAdapterAndroid::~ImeAdapterAndroid() {
if (java_ime_adapter_) {
JNIEnv* env = base::android::AttachCurrentThread();
Java_ImeAdapter_detach(env, java_ime_adapter_);
env->DeleteGlobalRef(java_ime_adapter_);
}
}
bool ImeAdapterAndroid::SendSyntheticKeyEvent(JNIEnv*,
jobject,
int type,
long time_ms,
int key_code,
int text) {
NativeWebKeyboardEvent event(static_cast<WebKit::WebInputEvent::Type>(type),
0 /* modifiers */, time_ms / 1000.0, key_code,
text, false /* is_system_key */);
rwhva_->SendKeyEvent(event);
return true;
}
bool ImeAdapterAndroid::SendKeyEvent(JNIEnv* env, jobject,
jobject original_key_event,
int action, int modifiers,
long time_ms, int key_code,
bool is_system_key, int unicode_char) {
NativeWebKeyboardEvent event = NativeWebKeyboardEventFromKeyEvent(
env, original_key_event, action, modifiers,
time_ms, key_code, is_system_key, unicode_char);
rwhva_->SendKeyEvent(event);
if (event.type == WebKit::WebInputEvent::RawKeyDown && event.text[0]) {
// Send a Char event, but without an os_event since we don't want to
// roundtrip back to java such synthetic event.
NativeWebKeyboardEvent char_event(event);
char_event.os_event = NULL;
event.type = WebKit::WebInputEvent::Char;
rwhva_->SendKeyEvent(event);
}
return true;
}
void ImeAdapterAndroid::SetComposingText(JNIEnv* env, jobject, jstring text,
int new_cursor_pos) {
RenderWidgetHostImpl* rwhi = RenderWidgetHostImpl::From(
rwhva_->GetRenderWidgetHost());
if (!rwhi)
return;
string16 text16 = ConvertJavaStringToUTF16(env, text);
std::vector<WebKit::WebCompositionUnderline> underlines;
underlines.push_back(
WebKit::WebCompositionUnderline(0, text16.length(), SK_ColorBLACK,
false));
// new_cursor_position is as described in the Android API for
// InputConnection#setComposingText, whereas the parameters for
// ImeSetComposition are relative to the start of the composition.
if (new_cursor_pos > 0)
new_cursor_pos = text16.length() + new_cursor_pos - 1;
rwhi->ImeSetComposition(text16, underlines, new_cursor_pos, new_cursor_pos);
}
void ImeAdapterAndroid::CommitText(JNIEnv* env, jobject, jstring text) {
RenderWidgetHostImpl* rwhi = RenderWidgetHostImpl::From(
rwhva_->GetRenderWidgetHost());
if (!rwhi)
return;
string16 text16 = ConvertJavaStringToUTF16(env, text);
rwhi->ImeConfirmComposition(text16);
}
void ImeAdapterAndroid::AttachImeAdapter(JNIEnv* env, jobject java_object) {
java_ime_adapter_ = AttachCurrentThread()->NewGlobalRef(java_object);
}
void ImeAdapterAndroid::CancelComposition() {
Java_ImeAdapter_cancelComposition(AttachCurrentThread(), java_ime_adapter_);
}
void ImeAdapterAndroid::SetEditableSelectionOffsets(JNIEnv*, jobject,
int start, int end) {
RenderWidgetHostImpl* rwhi = RenderWidgetHostImpl::From(
rwhva_->GetRenderWidgetHost());
if (!rwhi)
return;
rwhi->Send(new ViewMsg_SetEditableSelectionOffsets(rwhi->GetRoutingID(),
start, end));
}
void ImeAdapterAndroid::SetComposingRegion(JNIEnv*, jobject,
int start, int end) {
RenderWidgetHostImpl* rwhi = RenderWidgetHostImpl::From(
rwhva_->GetRenderWidgetHost());
if (!rwhi)
return;
std::vector<WebKit::WebCompositionUnderline> underlines;
underlines.push_back(
WebKit::WebCompositionUnderline(0, end - start, SK_ColorBLACK, false));
rwhi->Send(new ViewMsg_SetCompositionFromExistingText(
rwhi->GetRoutingID(), start, end, underlines));
}
void ImeAdapterAndroid::DeleteSurroundingText(JNIEnv*, jobject,
int before, int after) {
RenderWidgetHostImpl* rwhi = RenderWidgetHostImpl::From(
rwhva_->GetRenderWidgetHost());
if (!rwhi)
return;
rwhi->Send(new ViewMsg_ExtendSelectionAndDelete(rwhi->GetRoutingID(),
before, after));
}
void ImeAdapterAndroid::Unselect(JNIEnv* env, jobject) {
RenderWidgetHostImpl* rwhi = RenderWidgetHostImpl::From(
rwhva_->GetRenderWidgetHost());
if (!rwhi)
return;
rwhi->Send(new ViewMsg_Unselect(rwhi->GetRoutingID()));
}
void ImeAdapterAndroid::SelectAll(JNIEnv* env, jobject) {
RenderWidgetHostImpl* rwhi = RenderWidgetHostImpl::From(
rwhva_->GetRenderWidgetHost());
if (!rwhi)
return;
rwhi->Send(new ViewMsg_SelectAll(rwhi->GetRoutingID()));
}
void ImeAdapterAndroid::Cut(JNIEnv* env, jobject) {
RenderWidgetHostImpl* rwhi = RenderWidgetHostImpl::From(
rwhva_->GetRenderWidgetHost());
if (!rwhi)
return;
rwhi->Send(new ViewMsg_Cut(rwhi->GetRoutingID()));
}
void ImeAdapterAndroid::Copy(JNIEnv* env, jobject) {
RenderWidgetHostImpl* rwhi = RenderWidgetHostImpl::From(
rwhva_->GetRenderWidgetHost());
if (!rwhi)
return;
rwhi->Send(new ViewMsg_Copy(rwhi->GetRoutingID()));
}
void ImeAdapterAndroid::Paste(JNIEnv* env, jobject) {
RenderWidgetHostImpl* rwhi = RenderWidgetHostImpl::From(
rwhva_->GetRenderWidgetHost());
if (!rwhi)
return;
rwhi->Send(new ViewMsg_Paste(rwhi->GetRoutingID()));
}
} // namespace content
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