Index: chrome/browser/webshare/share_service_impl.cc |
diff --git a/chrome/browser/webshare/share_service_impl.cc b/chrome/browser/webshare/share_service_impl.cc |
index a5d57427c5664c09a77b40fbc93ae8dbd9b3f655..6b12400c3c504f60efbcd012ffb45f0dcde34ba0 100644 |
--- a/chrome/browser/webshare/share_service_impl.cc |
+++ b/chrome/browser/webshare/share_service_impl.cc |
@@ -4,8 +4,44 @@ |
#include "chrome/browser/webshare/share_service_impl.h" |
-#include "base/memory/ptr_util.h" |
+#include <algorithm> |
+#include <functional> |
+#include <utility> |
+ |
+#include "base/strings/string_util.h" |
+#include "chrome/browser/ui/browser.h" |
+#include "chrome/browser/ui/browser_commands.h" |
+#include "chrome/browser/ui/browser_list.h" |
+#include "chrome/browser/ui/browser_tabstrip.h" |
+#include "chrome/browser/ui/tabs/tab_strip_model.h" |
#include "mojo/public/cpp/bindings/strong_binding.h" |
+#include "net/base/escape.h" |
+ |
+namespace { |
+ |
+// Determines whether a character is allowed in a URL template placeholder. |
+bool IsIdentifier(char c) { |
+ return base::IsAsciiAlpha(c) || base::IsAsciiDigit(c) || c == '-' || c == '_'; |
+} |
+ |
+// Joins a std::vector<base::StringPiece> into a single std::string. |
+// TODO(constantina): Implement a base::JoinString() that takes StringPieces. |
+// i.e. move this to base/strings/string_util.h, and thoroughly test. |
+std::string JoinString(const std::vector<base::StringPiece>& pieces) { |
+ size_t total_size = 0; |
+ for (const auto& piece : pieces) { |
+ total_size += piece.size(); |
+ } |
+ std::string joined_pieces; |
+ joined_pieces.reserve(total_size); |
+ |
+ for (const auto& piece : pieces) { |
+ piece.AppendToString(&joined_pieces); |
+ } |
+ return joined_pieces; |
+} |
+ |
+} // namespace |
// static |
void ShareServiceImpl::Create(blink::mojom::ShareServiceRequest request) { |
@@ -13,11 +49,101 @@ void ShareServiceImpl::Create(blink::mojom::ShareServiceRequest request) { |
std::move(request)); |
} |
+// static |
+bool ShareServiceImpl::ReplacePlaceholders(base::StringPiece url_template, |
+ base::StringPiece title, |
+ base::StringPiece text, |
+ const GURL& share_url, |
+ std::string* url_template_filled) { |
+ constexpr char kTitlePlaceholder[] = "title"; |
+ constexpr char kTextPlaceholder[] = "text"; |
+ constexpr char kUrlPlaceholder[] = "url"; |
+ |
+ std::map<base::StringPiece, std::string> placeholder_to_data; |
+ placeholder_to_data[kTitlePlaceholder] = |
+ net::EscapeQueryParamValue(title, false); |
+ placeholder_to_data[kTextPlaceholder] = |
+ net::EscapeQueryParamValue(text, false); |
+ placeholder_to_data[kUrlPlaceholder] = |
+ net::EscapeQueryParamValue(share_url.spec(), false); |
+ |
+ std::vector<base::StringPiece> split_template; |
+ bool last_saw_open = false; |
+ size_t start_index_to_copy = 0; |
+ for (size_t i = 0; i < url_template.size(); ++i) { |
+ if (last_saw_open) { |
+ if (url_template[i] == '}') { |
+ base::StringPiece placeholder = url_template.substr( |
+ start_index_to_copy + 1, i - 1 - start_index_to_copy); |
+ auto it = placeholder_to_data.find(placeholder); |
+ if (it != placeholder_to_data.end()) { |
+ // Replace the placeholder text with the parameter value. |
+ split_template.push_back(it->second); |
+ } |
+ |
+ last_saw_open = false; |
+ start_index_to_copy = i + 1; |
+ } else if (!IsIdentifier(url_template[i])) { |
+ // Error: Non-identifier character seen after open. |
+ return false; |
+ } |
+ } else { |
+ if (url_template[i] == '}') { |
+ // Error: Saw close, with no corresponding open. |
+ return false; |
+ } else if (url_template[i] == '{') { |
+ split_template.push_back( |
+ url_template.substr(start_index_to_copy, i - start_index_to_copy)); |
+ |
+ last_saw_open = true; |
+ start_index_to_copy = i; |
+ } |
+ } |
+ } |
+ if (last_saw_open) { |
+ // Error: Saw open that was never closed. |
+ return false; |
+ } |
+ split_template.push_back(url_template.substr( |
+ start_index_to_copy, url_template.size() - start_index_to_copy)); |
+ |
+ *url_template_filled = JoinString(split_template); |
+ return true; |
+} |
+ |
+void ShareServiceImpl::OpenTargetURL(const GURL& target_url) { |
+// TODO(constantina): Prevent this code from being run/compiled in android. |
+#if defined(OS_LINUX) || defined(OS_WIN) |
+ Browser* browser = BrowserList::GetInstance()->GetLastActive(); |
+ chrome::AddTabAt(browser, target_url, |
+ browser->tab_strip_model()->active_index() + 1, true); |
+#endif |
+} |
+ |
void ShareServiceImpl::Share(const std::string& title, |
const std::string& text, |
- const GURL& url, |
+ const GURL& share_url, |
const ShareCallback& callback) { |
- // TODO(constantina): Implement Web Share Target here. |
- NOTIMPLEMENTED(); |
- callback.Run(base::Optional<std::string>("Not implemented: navigator.share")); |
+ // TODO(constantina): replace hard-coded URL with one from user-chosen site. |
+ constexpr char kUrlBase[] = "https://wicg.github.io/web-share-target/"; |
+ constexpr char kUrlTemplate[] = |
+ "demos/sharetarget.html?title={title}&text={text}&url={url}"; |
+ |
+ std::string url_template_filled; |
+ if (!ReplacePlaceholders(kUrlTemplate, title, text, share_url, |
+ &url_template_filled)) { |
+ callback.Run(base::Optional<std::string>( |
+ "Error: unable to replace placeholders in url template")); |
+ return; |
+ } |
+ |
+ GURL target_url(kUrlBase + url_template_filled); |
+ if (!target_url.is_valid()) { |
+ callback.Run(base::Optional<std::string>( |
+ "Error: url of share target is not a valid url.")); |
+ return; |
+ } |
+ OpenTargetURL(target_url); |
+ |
+ callback.Run(base::nullopt); |
} |