Hookup Print HTML page to the DOM UI for Print Preview and Settings

Depends on initial foundation: 
http://src.chromium.org/viewvc/chrome?view=rev&revision=19906

And html mockup: 
http://src.chromium.org/viewvc/chrome?view=rev&revision=19918

BUG=173, 947
TEST=The user will see the print html page as a html test webpage.
Review URL: http://codereview.chromium.org/155067

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@20595 0039d316-1c4b-4281-b951-d872f2087c98

4 files changed, 91 insertions, 7 deletions

diff --git a/chrome/browser/dom_ui/chrome_url_data_manager.cc b/chrome/browser/dom_ui/chrome_url_data_manager.cc
index 2537a12..36fde4d 100644
--- a/chrome/browser/dom_ui/chrome_url_data_manager.cc
+++ b/chrome/browser/dom_ui/chrome_url_data_manager.cc
@@ -116,6 +116,8 @@ void RegisterURLRequestChromeJob() {
 
   URLRequest::RegisterProtocolFactory(kChromeURLScheme,
                                       &ChromeURLDataManager::Factory);
+  URLRequest::RegisterProtocolFactory(chrome::kPrintScheme,
+                                      &ChromeURLDataManager::Factory);
 #ifdef CHROME_PERSONALIZATION
   url_util::AddStandardScheme(kPersonalizationScheme);
   URLRequest::RegisterProtocolFactory(kPersonalizationScheme,
@@ -137,9 +139,10 @@ void ChromeURLDataManager::URLToRequest(const GURL& url,
                                         std::string* path) {
 #ifdef CHROME_PERSONALIZATION
   DCHECK(url.SchemeIs(kChromeURLScheme) ||
-         url.SchemeIs(kPersonalizationScheme));
+         url.SchemeIs(kPersonalizationScheme) ||
+         url.SchemeIs(chrome::kPrintScheme));
 #else
-  DCHECK(url.SchemeIs(kChromeURLScheme));
+  DCHECK(url.SchemeIs(kChromeURLScheme) || url.SchemeIs(chrome::kPrintScheme));
 #endif
 
   if (!url.is_valid()) {
@@ -149,13 +152,20 @@ void ChromeURLDataManager::URLToRequest(const GURL& url,
 
   // Our input looks like: chrome://source_name/extra_bits?foo .
   // So the url's "host" is our source, and everything after the host is
-  // the path.
-  source_name->assign(url.host());
+  // the path. For print:url schemes, we assume its always print.
+  if (url.SchemeIs(chrome::kPrintScheme))
+    source_name->assign(chrome::kPrintScheme);
+  else
+    source_name->assign(url.host());
 
   const std::string& spec = url.possibly_invalid_spec();
   const url_parse::Parsed& parsed = url.parsed_for_possibly_invalid_spec();
   int offset = parsed.CountCharactersBefore(url_parse::Parsed::PATH, false);
-  ++offset;  // Skip the slash at the beginning of the path.
+
+  // We need to skip the slash at the beginning of the path for non print urls.
+  if (!url.SchemeIs(chrome::kPrintScheme))
+    ++offset;
+
   if (offset < static_cast<int>(spec.size()))
     path->assign(spec.substr(offset));
 }
diff --git a/chrome/browser/dom_ui/dom_ui_factory.cc b/chrome/browser/dom_ui/dom_ui_factory.cc
index 8ff6d03..d7f2e81 100644
--- a/chrome/browser/dom_ui/dom_ui_factory.cc
+++ b/chrome/browser/dom_ui/dom_ui_factory.cc
@@ -42,11 +42,14 @@ static bool CreateDOMUI(const GURL& url, TabContents* tab_contents,
     return true;
   }
 
+// TODO(mhm) Make sure this ifdef is removed once print is complete.
+#if !defined(GOOGLE_CHROME_BUILD)
   if (url.SchemeIs(chrome::kPrintScheme)) {
     if (new_ui)
       *new_ui = new PrintUI(tab_contents);
     return true;
   }
+#endif
 
 #ifdef CHROME_PERSONALIZATION
   if (Personalization::NeedsDOMUI(url)) {
@@ -106,7 +109,8 @@ static bool CreateDOMUI(const GURL& url, TabContents* tab_contents,
 bool DOMUIFactory::HasDOMUIScheme(const GURL& url) {
   return url.SchemeIs(chrome::kChromeInternalScheme) ||
          url.SchemeIs(chrome::kChromeUIScheme) ||
-         url.SchemeIs(chrome::kExtensionScheme);
+         url.SchemeIs(chrome::kExtensionScheme) ||
+         url.SchemeIs(chrome::kPrintScheme);
 }
 
 // static
diff --git a/chrome/browser/dom_ui/print_ui.cc b/chrome/browser/dom_ui/print_ui.cc
index 973e5c7..82b2396 100644
--- a/chrome/browser/dom_ui/print_ui.cc
+++ b/chrome/browser/dom_ui/print_ui.cc
@@ -4,6 +4,18 @@
 
 #include "chrome/browser/dom_ui/print_ui.h"
 
+#include "app/l10n_util.h"
+#include "app/resource_bundle.h"
+#include "base/message_loop.h"
+#include "base/thread.h"
+#include "base/values.h"
+#include "chrome/browser/browser_process.h"
+#include "chrome/common/jstemplate_builder.h"
+#include "chrome/common/url_constants.h"
+
+#include "grit/browser_resources.h"
+#include "grit/generated_resources.h"
+
 ///////////////////////////////////////////////////////////////////////////////
 //
 // PrintUI
@@ -11,5 +23,44 @@
 ///////////////////////////////////////////////////////////////////////////////
 
 PrintUI::PrintUI(TabContents* contents) : DOMUI(contents) {
-  NOTIMPLEMENTED();
+  PrintUIHTMLSource* html_source = new PrintUIHTMLSource();
+
+  // Set up the print:url source.
+  g_browser_process->io_thread()->message_loop()->PostTask(FROM_HERE,
+      NewRunnableMethod(&chrome_url_data_manager,
+          &ChromeURLDataManager::AddDataSource,
+          html_source));
+}
+
+////////////////////////////////////////////////////////////////////////////////
+//
+// PrintUIHTMLSource
+//
+////////////////////////////////////////////////////////////////////////////////
+
+PrintUIHTMLSource::PrintUIHTMLSource()
+    : DataSource(chrome::kPrintScheme, MessageLoop::current()) {
+}
+
+void PrintUIHTMLSource::StartDataRequest(const std::string& path,
+                                         int request_id) {
+  // Setup a dictionary so that the html page could read the values.
+  DictionaryValue localized_strings;
+  localized_strings.SetString(L"title",
+      l10n_util::GetString(IDS_PRINT));
+
+  SetFontAndTextDirection(&localized_strings);
+
+  // Setup the print html page.
+  static const StringPiece print_html(
+      ResourceBundle::GetSharedInstance().GetRawDataResource(
+          IDR_PRINT_TAB_HTML));
+  const std::string full_html = jstemplate_builder::GetTemplateHtml(
+      print_html, &localized_strings, "t");
+
+  // Load the print html page into the tab contents.
+  scoped_refptr<RefCountedBytes> html_bytes(new RefCountedBytes);
+  html_bytes->data.resize(full_html.size());
+  std::copy(full_html.begin(), full_html.end(), html_bytes->data.begin());
+  SendResponse(request_id, html_bytes);
 }
diff --git a/chrome/browser/dom_ui/print_ui.h b/chrome/browser/dom_ui/print_ui.h
index 020b3f1..8443da4 100644
--- a/chrome/browser/dom_ui/print_ui.h
+++ b/chrome/browser/dom_ui/print_ui.h
@@ -5,8 +5,12 @@
 #ifndef CHROME_BROWSER_DOM_UI_PRINT_UI_H_
 #define CHROME_BROWSER_DOM_UI_PRINT_UI_H_
 
+#include <string>
+
+#include "chrome/browser/dom_ui/chrome_url_data_manager.h"
 #include "chrome/browser/dom_ui/dom_ui.h"
 
+// The TabContents used for the print page.
 class PrintUI : public DOMUI {
  public:
   explicit PrintUI(TabContents* contents);
@@ -15,4 +19,19 @@ class PrintUI : public DOMUI {
   DISALLOW_COPY_AND_ASSIGN(PrintUI);
 };
 
+// To serve dynamic print data off of chrome.
+class PrintUIHTMLSource : public ChromeURLDataManager::DataSource {
+ public:
+  PrintUIHTMLSource();
+
+  // ChromeURLDataManager overrides.
+  virtual void StartDataRequest(const std::string& path, int request_id);
+  virtual std::string GetMimeType(const std::string&) const {
+    return "text/html";
+  }
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(PrintUIHTMLSource);
+};
+
 #endif  // CHROME_BROWSER_DOM_UI_PRINT_UI_H_