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Issue 146843010: Add support for multipage distillation. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Address Chris' comments. Created 6 years, 10 months ago
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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 "components/dom_distiller/core/page_distiller.h"
6
7 #include <map>
8
9 #include "base/strings/utf_string_conversions.h"
10 #include "base/values.h"
11 #include "components/dom_distiller/core/distiller_page.h"
12 #include "components/dom_distiller/core/distiller_url_fetcher.h"
13 #include "grit/dom_distiller_resources.h"
14 #include "net/url_request/url_request_context_getter.h"
15 #include "ui/base/resource/resource_bundle.h"
16 #include "url/gurl.h"
17
18 namespace dom_distiller {
19
20 DistilledPageInfo::DistilledPageInfo() {}
21
22 DistilledPageInfo::~DistilledPageInfo() {}
23
24 PageDistiller::PageDistiller(const DistillerPageFactory& distiller_page_factory)
25 : distiller_page_(distiller_page_factory.CreateDistillerPage(this).Pass()) {
26 }
27
28 PageDistiller::~PageDistiller() {}
29
30 void PageDistiller::Init() { distiller_page_->Init(); }
31
32 void PageDistiller::DistillPage(const GURL& url,
33 const PageDistillerCallback& callback) {
34 page_distiller_callback_ = callback;
35 LoadURL(url);
36 }
37
38 void PageDistiller::LoadURL(const GURL& url) { distiller_page_->LoadURL(url); }
39
40 void PageDistiller::OnLoadURLDone() { GetDistilledContent(); }
41
42 void PageDistiller::GetDistilledContent() {
43 std::string script = ResourceBundle::GetSharedInstance()
44 .GetRawDataResource(IDR_DISTILLER_JS)
45 .as_string();
46 distiller_page_->ExecuteJavaScript(script);
47 }
48
49 void PageDistiller::OnExecuteJavaScriptDone(const GURL& page_url,
50 const base::Value* value) {
51 DistilledPageInfo page_info;
52 std::string result;
53 const base::ListValue* result_list = NULL;
54 if (!value->GetAsList(&result_list)) {
55 page_distiller_callback_.Run(page_info, false);
56 } else {
57 int i = 0;
58 for (base::ListValue::const_iterator iter = result_list->begin();
59 iter != result_list->end();
60 ++iter, ++i) {
61 std::string item;
62 (*iter)->GetAsString(&item);
63 // The JavaScript returns an array where the first element is the title,
64 // the second element is the article content HTML, and the remaining
65 // elements are image URLs referenced in the HTML.
66 switch (i) {
67 case 0:
68 page_info.title = item;
69 break;
70 case 1:
71 page_info.html = item;
72 break;
73 case 2: {
74 page_info.next_page_url = item;
75 break;
76 }
77 default:
78 page_info.image_urls.push_back(item);
79 }
80 }
81 page_distiller_callback_.Run(page_info, true);
82 }
83 }
84
85 } // namespace dom_distiller
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