chrome/browser/ui/app_modal_dialogs/javascript_app_modal_dialog.cc

   1 // Copyright (c) 2012 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 "chrome/browser/ui/app_modal_dialogs/javascript_app_modal_dialog.h"
   6
   7 #include "chrome/browser/browser_shutdown.h"
   8 #include "chrome/browser/ui/app_modal_dialogs/native_app_modal_dialog.h"
   9 #include "content/public/browser/web_contents.h"
  10 #include "content/public/browser/web_contents_view.h"
  11 #include "ui/gfx/text_elider.h"
  12
  13 #if defined(USE_AURA)
  14 #include "ui/aura/root_window.h"
  15 #include "ui/aura/window.h"
  16 #endif
  17
  18 using content::JavaScriptDialogManager;
  19 using content::WebContents;
  20
  21 namespace {
  22
  23 // Control maximum sizes of various texts passed to us from javascript.
  24 #if defined(OS_POSIX) && !defined(OS_MACOSX)
  25 // Two-dimensional eliding.  Reformat the text of the message dialog
  26 // inserting line breaks because otherwise a single long line can overflow
  27 // the message dialog (and crash/hang the GTK, depending on the version).
  28 const int kMessageTextMaxRows = 32;
  29 const int kMessageTextMaxCols = 132;
  30 const int kDefaultPromptMaxRows = 24;
  31 const int kDefaultPromptMaxCols = 132;
  32 void EnforceMaxTextSize(const base::string16& in_string,
  33                         base::string16* out_string) {
  34   gfx::ElideRectangleString(in_string, kMessageTextMaxRows,
  35                            kMessageTextMaxCols, false, out_string);
  36 }
  37 void EnforceMaxPromptSize(const base::string16& in_string,
  38                           base::string16* out_string) {
  39   gfx::ElideRectangleString(in_string, kDefaultPromptMaxRows,
  40                            kDefaultPromptMaxCols, false, out_string);
  41 }
  42 #else
  43 // One-dimensional eliding.  Trust the window system to break the string
  44 // appropriately, but limit its overall length to something reasonable.
  45 const int kMessageTextMaxSize = 3000;
  46 const int kDefaultPromptMaxSize = 2000;
  47 void EnforceMaxTextSize(const base::string16& in_string,
  48                         base::string16* out_string) {
  49   gfx::ElideString(in_string, kMessageTextMaxSize, out_string);
  50 }
  51 void EnforceMaxPromptSize(const base::string16& in_string,
  52                           base::string16* out_string) {
  53   gfx::ElideString(in_string, kDefaultPromptMaxSize, out_string);
  54 }
  55 #endif
  56
  57 }  // namespace
  58
  59 ChromeJavaScriptDialogExtraData::ChromeJavaScriptDialogExtraData()
  60     : suppress_javascript_messages_(false) {
  61 }
  62
  63 JavaScriptAppModalDialog::JavaScriptAppModalDialog(
  64     WebContents* web_contents,
  65     ExtraDataMap* extra_data_map,
  66     const base::string16& title,
  67     content::JavaScriptMessageType javascript_message_type,
  68     const base::string16& message_text,
  69     const base::string16& default_prompt_text,
  70     bool display_suppress_checkbox,
  71     bool is_before_unload_dialog,
  72     bool is_reload,
  73     const JavaScriptDialogManager::DialogClosedCallback& callback)
  74     : AppModalDialog(web_contents, title),
  75       extra_data_map_(extra_data_map),
  76       javascript_message_type_(javascript_message_type),
  77       display_suppress_checkbox_(display_suppress_checkbox),
  78       is_before_unload_dialog_(is_before_unload_dialog),
  79       is_reload_(is_reload),
  80       callback_(callback),
  81       use_override_prompt_text_(false) {
  82   EnforceMaxTextSize(message_text, &message_text_);
  83   EnforceMaxPromptSize(default_prompt_text, &default_prompt_text_);
  84 }
  85
  86 JavaScriptAppModalDialog::~JavaScriptAppModalDialog() {
  87 }
  88
  89 NativeAppModalDialog* JavaScriptAppModalDialog::CreateNativeDialog() {
  90   gfx::NativeWindow parent_window =
  91       web_contents()->GetView()->GetTopLevelNativeWindow();
  92
  93 #if defined(USE_AURA)
  94   if (!parent_window->GetRootWindow()) {
  95     // When we are part of a WebContents that isn't actually being displayed on
  96     // the screen, we can't actually attach to it.
  97     parent_window = NULL;
  98   }
  99 #endif  // defined(USE_AURA)
 100
 101   return NativeAppModalDialog::CreateNativeJavaScriptPrompt(this,
 102                                                             parent_window);
 103 }
 104
 105 bool JavaScriptAppModalDialog::IsJavaScriptModalDialog() {
 106   return true;
 107 }
 108
 109 void JavaScriptAppModalDialog::Invalidate() {
 110   if (!IsValid())
 111     return;
 112
 113   AppModalDialog::Invalidate();
 114   if (!callback_.is_null()) {
 115     callback_.Run(false, base::string16());
 116     callback_.Reset();
 117   }
 118   if (native_dialog())
 119     CloseModalDialog();
 120 }
 121
 122 void JavaScriptAppModalDialog::OnCancel(bool suppress_js_messages) {
 123   // We need to do this before WM_DESTROY (WindowClosing()) as any parent frame
 124   // will receive its activation messages before this dialog receives
 125   // WM_DESTROY. The parent frame would then try to activate any modal dialogs
 126   // that were still open in the ModalDialogQueue, which would send activation
 127   // back to this one. The framework should be improved to handle this, so this
 128   // is a temporary workaround.
 129   CompleteDialog();
 130
 131   NotifyDelegate(false, base::string16(), suppress_js_messages);
 132 }
 133
 134 void JavaScriptAppModalDialog::OnAccept(const base::string16& prompt_text,
 135                                         bool suppress_js_messages) {
 136   base::string16 prompt_text_to_use = prompt_text;
 137   // This is only for testing.
 138   if (use_override_prompt_text_)
 139     prompt_text_to_use = override_prompt_text_;
 140
 141   CompleteDialog();
 142   NotifyDelegate(true, prompt_text_to_use, suppress_js_messages);
 143 }
 144
 145 void JavaScriptAppModalDialog::OnClose() {
 146   NotifyDelegate(false, base::string16(), false);
 147 }
 148
 149 void JavaScriptAppModalDialog::SetOverridePromptText(
 150     const base::string16& override_prompt_text) {
 151   override_prompt_text_ = override_prompt_text;
 152   use_override_prompt_text_ = true;
 153 }
 154
 155 void JavaScriptAppModalDialog::NotifyDelegate(bool success,
 156                                               const base::string16& user_input,
 157                                               bool suppress_js_messages) {
 158   if (!IsValid())
 159     return;
 160
 161   if (!callback_.is_null()) {
 162     callback_.Run(success, user_input);
 163     callback_.Reset();
 164   }
 165
 166   // The callback_ above may delete web_contents_, thus removing the extra
 167   // data from the map owned by ChromeJavaScriptDialogManager. Make sure
 168   // to only use the data if still present. http://crbug.com/236476
 169   ExtraDataMap::iterator extra_data = extra_data_map_->find(web_contents());
 170   if (extra_data != extra_data_map_->end()) {
 171     extra_data->second.last_javascript_message_dismissal_ =
 172         base::TimeTicks::Now();
 173     extra_data->second.suppress_javascript_messages_ = suppress_js_messages;
 174   }
 175
 176   // On Views, we can end up coming through this code path twice :(.
 177   // See crbug.com/63732.
 178   AppModalDialog::Invalidate();
 179 }