content/browser/android/popup_touch_handle_drawable.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "content/browser/android/popup_touch_handle_drawable.h"
   6
   7 #include "content/public/browser/android/content_view_core.h"
   8 #include "jni/PopupTouchHandleDrawable_jni.h"
   9
  10 namespace content {
  11
  12 // static
  13 scoped_ptr<PopupTouchHandleDrawable> PopupTouchHandleDrawable::Create(
  14     ContentViewCore* content_view_core) {
  15   DCHECK(content_view_core);
  16   base::android::ScopedJavaLocalRef<jobject> content_view_core_obj =
  17       content_view_core->GetJavaObject();
  18   if (content_view_core_obj.is_null())
  19     return nullptr;
  20   JNIEnv* env = base::android::AttachCurrentThread();
  21   base::android::ScopedJavaLocalRef<jobject> drawable_obj(
  22       Java_PopupTouchHandleDrawable_create(env, content_view_core_obj.obj()));
  23   return scoped_ptr<PopupTouchHandleDrawable>(new PopupTouchHandleDrawable(
  24       env, drawable_obj.obj(), content_view_core->GetDpiScale()));
  25 }
  26
  27 PopupTouchHandleDrawable::PopupTouchHandleDrawable(JNIEnv* env,
  28                                                    jobject obj,
  29                                                    float dpi_scale)
  30     : java_ref_(env, obj), dpi_scale_(dpi_scale) {
  31   DCHECK(!java_ref_.is_empty());
  32 }
  33
  34 PopupTouchHandleDrawable::~PopupTouchHandleDrawable() {
  35   JNIEnv* env = base::android::AttachCurrentThread();
  36   ScopedJavaLocalRef<jobject> obj = java_ref_.get(env);
  37   if (!obj.is_null())
  38     Java_PopupTouchHandleDrawable_destroy(env, obj.obj());
  39 }
  40
  41 void PopupTouchHandleDrawable::SetEnabled(bool enabled) {
  42   JNIEnv* env = base::android::AttachCurrentThread();
  43   ScopedJavaLocalRef<jobject> obj = java_ref_.get(env);
  44   if (obj.is_null())
  45     return;
  46   if (enabled)
  47     Java_PopupTouchHandleDrawable_show(env, obj.obj());
  48   else
  49     Java_PopupTouchHandleDrawable_hide(env, obj.obj());
  50 }
  51
  52 void PopupTouchHandleDrawable::SetOrientation(
  53     ui::TouchHandleOrientation orientation) {
  54   JNIEnv* env = base::android::AttachCurrentThread();
  55   ScopedJavaLocalRef<jobject> obj = java_ref_.get(env);
  56   if (!obj.is_null()) {
  57     Java_PopupTouchHandleDrawable_setOrientation(env, obj.obj(),
  58                                                  static_cast<int>(orientation));
  59   }
  60 }
  61
  62 void PopupTouchHandleDrawable::SetAlpha(float alpha) {
  63   JNIEnv* env = base::android::AttachCurrentThread();
  64   ScopedJavaLocalRef<jobject> obj = java_ref_.get(env);
  65   bool visible = alpha > 0;
  66   if (!obj.is_null())
  67     Java_PopupTouchHandleDrawable_setVisible(env, obj.obj(), visible);
  68 }
  69
  70 void PopupTouchHandleDrawable::SetFocus(const gfx::PointF& position) {
  71   const gfx::PointF position_pix = gfx::ScalePoint(position, dpi_scale_);
  72   JNIEnv* env = base::android::AttachCurrentThread();
  73   ScopedJavaLocalRef<jobject> obj = java_ref_.get(env);
  74   if (!obj.is_null()) {
  75     Java_PopupTouchHandleDrawable_setFocus(env, obj.obj(), position_pix.x(),
  76                                            position_pix.y());
  77   }
  78 }
  79
  80 gfx::RectF PopupTouchHandleDrawable::GetVisibleBounds() const {
  81   JNIEnv* env = base::android::AttachCurrentThread();
  82   ScopedJavaLocalRef<jobject> obj = java_ref_.get(env);
  83   if (obj.is_null())
  84     return gfx::RectF();
  85   gfx::RectF unscaled_rect(
  86       Java_PopupTouchHandleDrawable_getPositionX(env, obj.obj()),
  87       Java_PopupTouchHandleDrawable_getPositionY(env, obj.obj()),
  88       Java_PopupTouchHandleDrawable_getVisibleWidth(env, obj.obj()),
  89       Java_PopupTouchHandleDrawable_getVisibleHeight(env, obj.obj()));
  90   return gfx::ScaleRect(unscaled_rect, 1.f / dpi_scale_);
  91 }
  92
  93 // static
  94 bool PopupTouchHandleDrawable::RegisterPopupTouchHandleDrawable(JNIEnv* env) {
  95   return RegisterNativesImpl(env);
  96 }
  97
  98 }  // namespace content