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1 // Copyright 2016 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 #ifndef CHROME_BROWSER_ANDROID_WEBAPK_MANIFEST_UPGRADE_DETECTOR_FETCHER_H_ | |
6 #define CHROME_BROWSER_ANDROID_WEBAPK_MANIFEST_UPGRADE_DETECTOR_FETCHER_H_ | |
7 | |
8 #include "base/android/jni_android.h" | |
9 #include "base/android/jni_weak_ref.h" | |
10 #include "base/macros.h" | |
11 #include "base/memory/weak_ptr.h" | |
12 #include "chrome/browser/android/shortcut_info.h" | |
13 #include "content/public/browser/web_contents_observer.h" | |
14 #include "third_party/skia/include/core/SkBitmap.h" | |
15 | |
16 namespace content { | |
17 struct Manifest; | |
18 class WebContents; | |
19 } | |
20 | |
21 class GURL; | |
22 struct InstallableData; | |
23 class WebApkIconHasher; | |
24 | |
25 // ManifestUpgradeDetectorFetcher is the C++ counterpart of | |
26 // org.chromium.chrome.browser's ManifestUpgradeDetectorFetcher in Java. It is | |
27 // created via a JNI (Initialize) call and MUST BE DESTROYED via Destroy(). | |
28 class ManifestUpgradeDetectorFetcher : public content::WebContentsObserver { | |
29 public: | |
30 ManifestUpgradeDetectorFetcher(JNIEnv* env, | |
31 jobject obj, | |
32 const GURL& scope, | |
33 const GURL& web_manifest_url); | |
34 | |
35 // Replaces the WebContents that is being observed. | |
36 void ReplaceWebContents( | |
37 JNIEnv* env, | |
38 const base::android::JavaParamRef<jobject>& obj, | |
39 const base::android::JavaParamRef<jobject>& java_web_contents); | |
40 | |
41 // Called by the Java counterpart to destroy its native half. | |
42 void Destroy(JNIEnv* env, const base::android::JavaParamRef<jobject>& obj); | |
43 | |
44 // Called by the Java counterpart to start checking web manifest changes. | |
45 void Start(JNIEnv* env, | |
46 const base::android::JavaParamRef<jobject>& obj, | |
47 const base::android::JavaParamRef<jobject>& java_web_contents); | |
48 | |
49 // Registers JNI hooks. | |
50 static bool Register(JNIEnv* env); | |
51 | |
52 private: | |
53 ~ManifestUpgradeDetectorFetcher() override; | |
54 | |
55 // content::WebContentsObserver: | |
56 void DidStopLoading() override; | |
57 | |
58 // Fetches the installable data. | |
59 void FetchInstallableData(); | |
60 | |
61 // Called once the installable data has been fetched. | |
62 void OnDidGetInstallableData(const InstallableData& installable_data); | |
63 | |
64 // Called with the computed Murmur2 hash for the app icon. | |
65 void OnGotIconMurmur2Hash(const std::string& best_icon_murmur2_hash); | |
66 | |
67 void OnDataAvailable(const ShortcutInfo& info, | |
68 const std::string& best_icon_murmur2_hash, | |
69 const SkBitmap& best_icon); | |
70 | |
71 // Points to the Java object. | |
72 base::android::ScopedJavaGlobalRef<jobject> java_ref_; | |
73 | |
74 // The detector will only fetch the URL within the scope of the WebAPK. | |
75 const GURL scope_; | |
76 | |
77 // The WebAPK's Web Manifest URL that the detector is looking for. | |
78 const GURL web_manifest_url_; | |
79 | |
80 // The URL for which the installable data is being fetched / was last fetched. | |
81 GURL last_fetched_url_; | |
82 | |
83 // Downloads app icon and computes Murmur2 hash. | |
84 std::unique_ptr<WebApkIconHasher> icon_hasher_; | |
85 | |
86 // Downloaded data for |web_manifest_url_|. | |
87 ShortcutInfo info_; | |
88 SkBitmap best_icon_; | |
89 | |
90 base::WeakPtrFactory<ManifestUpgradeDetectorFetcher> weak_ptr_factory_; | |
91 | |
92 DISALLOW_COPY_AND_ASSIGN(ManifestUpgradeDetectorFetcher); | |
93 }; | |
94 | |
95 #endif // CHROME_BROWSER_ANDROID_WEBAPK_MANIFEST_UPGRADE_DETECTOR_FETCHER_H_ | |
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