Determine whether to show "Add to Homescreen" dialog or WebAPK infobar

chrome/browser/android/webapps/add_to_homescreen_dialog_helper.cc

-// Copyright 2015 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 "chrome/browser/android/webapps/add_to_homescreen_dialog_helper.h"
-
-#include "base/android/jni_android.h"
-#include "base/android/jni_string.h"
-#include "base/guid.h"
-#include "base/location.h"
-#include "base/strings/string16.h"
-#include "base/strings/utf_string_conversions.h"
-#include "chrome/browser/android/shortcut_helper.h"
-#include "chrome/browser/banners/app_banner_settings_helper.h"
-#include "content/public/browser/browser_thread.h"
-#include "content/public/browser/web_contents.h"
-#include "jni/AddToHomescreenDialogHelper_jni.h"
-#include "ui/gfx/android/java_bitmap.h"
-
-using base::android::JavaParamRef;
-using base::android::ScopedJavaLocalRef;
-
-jlong Initialize(JNIEnv* env,
-                 const JavaParamRef<jobject>& obj,
-                 const JavaParamRef<jobject>& java_web_contents) {
-  content::WebContents* web_contents =
-      content::WebContents::FromJavaWebContents(java_web_contents);
-  AddToHomescreenDialogHelper* add_to_homescreen_helper =
-      new AddToHomescreenDialogHelper(env, obj, web_contents);
-  return reinterpret_cast<intptr_t>(add_to_homescreen_helper);
-}
-
-AddToHomescreenDialogHelper::AddToHomescreenDialogHelper(
-    JNIEnv* env,
-    jobject obj,
-    content::WebContents* web_contents)
-    : add_shortcut_pending_(false),
-      data_fetcher_(new AddToHomescreenDataFetcher(web_contents,
-          ShortcutHelper::GetIdealHomescreenIconSizeInDp(),
-          ShortcutHelper::GetMinimumHomescreenIconSizeInDp(),
-          ShortcutHelper::GetIdealSplashImageSizeInDp(),
-          ShortcutHelper::GetMinimumSplashImageSizeInDp(),
-          this)) {
-  java_ref_.Reset(env, obj);
-}
-
-AddToHomescreenDialogHelper::~AddToHomescreenDialogHelper() {
-  data_fetcher_->set_weak_observer(nullptr);
-  data_fetcher_ = nullptr;
-}
-
-void AddToHomescreenDialogHelper::OnUserTitleAvailable(
-    const base::string16& user_title) {
-  JNIEnv* env = base::android::AttachCurrentThread();
-  ScopedJavaLocalRef<jstring> j_user_title =
-      base::android::ConvertUTF16ToJavaString(env, user_title);
-  Java_AddToHomescreenDialogHelper_onUserTitleAvailable(env,
-                                                  java_ref_.obj(),
-                                                  j_user_title.obj());
-}
-
-void AddToHomescreenDialogHelper::OnDataAvailable(const ShortcutInfo& info,
-                                                  const SkBitmap& icon) {
-  JNIEnv* env = base::android::AttachCurrentThread();
-  ScopedJavaLocalRef<jobject> java_bitmap;
-  if (icon.getSize())
-    java_bitmap = gfx::ConvertToJavaBitmap(&icon);
-
-  Java_AddToHomescreenDialogHelper_onIconAvailable(env,
-                                             java_ref_.obj(),
-                                             java_bitmap.obj());
-
-  if (add_shortcut_pending_)
-    AddShortcut(info, icon);
-}
-
-void AddToHomescreenDialogHelper::Destroy(JNIEnv* env,
-                                          const JavaParamRef<jobject>& obj) {
-  delete this;
-}
-
-SkBitmap AddToHomescreenDialogHelper::FinalizeLauncherIconInBackground(
-    const SkBitmap& bitmap,
-    const GURL& url,
-    bool* is_generated) {
-  DCHECK(content::BrowserThread::GetBlockingPool()->RunsTasksOnCurrentThread());
-
-  return ShortcutHelper::FinalizeLauncherIconInBackground(bitmap, url,
-                                                          is_generated);
-}
-
-void AddToHomescreenDialogHelper::AddShortcut(
-    JNIEnv* env,
-    const JavaParamRef<jobject>& obj,
-    const JavaParamRef<jstring>& j_user_title) {
-  add_shortcut_pending_ = true;
-
-  base::string16 user_title =
-      base::android::ConvertJavaStringToUTF16(env, j_user_title);
-  if (!user_title.empty())
-    data_fetcher_->shortcut_info().user_title = user_title;
-
-  if (data_fetcher_->is_ready()) {
-    // If the fetcher isn't ready yet, the shortcut will be added when it is
-    // via OnDataAvailable();
-    AddShortcut(data_fetcher_->shortcut_info(), data_fetcher_->shortcut_icon());
-  }
-}
-
-void AddToHomescreenDialogHelper::AddShortcut(const ShortcutInfo& info,
-                                              const SkBitmap& icon) {
-  DCHECK(add_shortcut_pending_);
-  if (!add_shortcut_pending_)
-    return;
-  add_shortcut_pending_ = false;
-
-  content::WebContents* web_contents = data_fetcher_->web_contents();
-  if (!web_contents)
-    return;
-
-  RecordAddToHomescreen();
-
-  const std::string& uid = base::GenerateGUID();
-  ShortcutHelper::AddToLauncherWithSkBitmap(
-      web_contents->GetBrowserContext(), info, uid, icon,
-      data_fetcher_->FetchSplashScreenImageCallback(uid));
-}
-
-bool AddToHomescreenDialogHelper::RegisterAddToHomescreenDialogHelper(
-      JNIEnv* env) {
-  return RegisterNativesImpl(env);
-}
-
-void AddToHomescreenDialogHelper::RecordAddToHomescreen() {
-  // Record that the shortcut has been added, so no banners will be shown
-  // for this app.
-  content::WebContents* web_contents = data_fetcher_->web_contents();
-  if (!web_contents)
-    return;
-
-  AppBannerSettingsHelper::RecordBannerEvent(
-      web_contents, web_contents->GetURL(),
-      data_fetcher_->shortcut_info().url.spec(),
-      AppBannerSettingsHelper::APP_BANNER_EVENT_DID_ADD_TO_HOMESCREEN,
-      base::Time::Now());
-}