1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
|
// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_DEV_UI_ANDROID_DEV_UI_LOADER_THROTTLE_H_
#define CHROME_BROWSER_DEV_UI_ANDROID_DEV_UI_LOADER_THROTTLE_H_
#include "base/memory/weak_ptr.h"
#include "content/public/browser/navigation_throttle.h"
class GURL;
namespace dev_ui {
// For DevUI page navigations, if the DevUI DFM is not installed then delay
// navigation and perform installation. On success, resumes navigation. On
// failure, displays error (retries install on refresh).
class DevUiLoaderThrottle : public content::NavigationThrottle {
public:
// Determines whether visiting |url| should trigger DevUI DFM install.
static bool ShouldInstallDevUiDfm(const GURL& url);
// Creates a throttle if the DevUI DFM needs to be installed. If the DevUI DFM
// will be used, is installed, but is not loaded, then resource load takes
// place as a side effect.
static void MaybeCreateAndAdd(content::NavigationThrottleRegistry& registry);
explicit DevUiLoaderThrottle(content::NavigationThrottleRegistry& registry);
~DevUiLoaderThrottle() override;
DevUiLoaderThrottle(const DevUiLoaderThrottle&) = delete;
const DevUiLoaderThrottle& operator=(const DevUiLoaderThrottle&) = delete;
// content::NavigationThrottle:
const char* GetNameForLogging() override;
ThrottleCheckResult WillStartRequest() override;
private:
// Callback for dev_ui::DevUiModuleProvider::InstallModule().
void OnDevUiDfmInstallWithStatus(bool success);
// Factory for creating references in callbacks.
base::WeakPtrFactory<DevUiLoaderThrottle> weak_ptr_factory_{this};
};
} // namespace dev_ui
#endif // CHROME_BROWSER_DEV_UI_ANDROID_DEV_UI_LOADER_THROTTLE_H_
|
