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/webui/print_preview/print_preview_ui.h"
6
7 #include <map>
8
9 #include "base/id_map.h"
10 #include "base/lazy_instance.h"
11 #include "base/memory/ref_counted_memory.h"
12 #include "base/metrics/histogram.h"
13 #include "base/strings/string_number_conversions.h"
14 #include "base/strings/string_split.h"
15 #include "base/strings/string_util.h"
16 #include "base/strings/utf_string_conversions.h"
17 #include "base/synchronization/lock.h"
18 #include "base/values.h"
19 #include "chrome/browser/browser_process.h"
20 #include "chrome/browser/printing/background_printing_manager.h"
21 #include "chrome/browser/printing/print_preview_data_service.h"
22 #include "chrome/browser/profiles/profile.h"
23 #include "chrome/browser/ui/webui/print_preview/print_preview_handler.h"
24 #include "chrome/browser/ui/webui/theme_source.h"
25 #include "chrome/common/print_messages.h"
26 #include "chrome/common/url_constants.h"
27 #include "content/public/browser/url_data_source.h"
28 #include "content/public/browser/web_contents.h"
29 #include "content/public/browser/web_ui_data_source.h"
30 #include "grit/browser_resources.h"
31 #include "grit/chromium_strings.h"
32 #include "grit/generated_resources.h"
33 #include "grit/google_chrome_strings.h"
34 #include "printing/page_size_margins.h"
35 #include "printing/print_job_constants.h"
36 #include "ui/base/l10n/l10n_util.h"
37 #include "ui/gfx/rect.h"
38 #include "ui/web_dialogs/web_dialog_delegate.h"
39 #include "ui/web_dialogs/web_dialog_ui.h"
40
41 using content::WebContents;
42 using printing::PageSizeMargins;
43
44 namespace {
45
46 #if defined(OS_MACOSX)
47 // U+0028 U+21E7 U+2318 U+0050 U+0029 in UTF8
48 const char kAdvancedPrintShortcut[] = "\x28\xE2\x8c\xA5\xE2\x8C\x98\x50\x29";
49 #elif defined(OS_WIN) || defined(OS_CHROMEOS)
50 const char kAdvancedPrintShortcut[] = "(Ctrl+Shift+P)";
51 #else
52 const char kAdvancedPrintShortcut[] = "(Shift+Ctrl+P)";
53 #endif
54
55 // Thread-safe wrapper around a std::map to keep track of mappings from
56 // PrintPreviewUI IDs to most recent print preview request IDs.
57 class PrintPreviewRequestIdMapWithLock {
58 public:
PrintPreviewRequestIdMapWithLock()59 PrintPreviewRequestIdMapWithLock() {}
~PrintPreviewRequestIdMapWithLock()60 ~PrintPreviewRequestIdMapWithLock() {}
61
62 // Gets the value for |preview_id|.
63 // Returns true and sets |out_value| on success.
Get(int32 preview_id,int * out_value)64 bool Get(int32 preview_id, int* out_value) {
65 base::AutoLock lock(lock_);
66 PrintPreviewRequestIdMap::const_iterator it = map_.find(preview_id);
67 if (it == map_.end())
68 return false;
69 *out_value = it->second;
70 return true;
71 }
72
73 // Sets the |value| for |preview_id|.
Set(int32 preview_id,int value)74 void Set(int32 preview_id, int value) {
75 base::AutoLock lock(lock_);
76 map_[preview_id] = value;
77 }
78
79 // Erases the entry for |preview_id|.
Erase(int32 preview_id)80 void Erase(int32 preview_id) {
81 base::AutoLock lock(lock_);
82 map_.erase(preview_id);
83 }
84
85 private:
86 // Mapping from PrintPreviewUI ID to print preview request ID.
87 typedef std::map<int, int> PrintPreviewRequestIdMap;
88
89 PrintPreviewRequestIdMap map_;
90 base::Lock lock_;
91
92 DISALLOW_COPY_AND_ASSIGN(PrintPreviewRequestIdMapWithLock);
93 };
94
95 // Written to on the UI thread, read from any thread.
96 base::LazyInstance<PrintPreviewRequestIdMapWithLock>
97 g_print_preview_request_id_map = LAZY_INSTANCE_INITIALIZER;
98
99 // PrintPreviewUI IDMap used to avoid exposing raw pointer addresses to WebUI.
100 // Only accessed on the UI thread.
101 base::LazyInstance<IDMap<PrintPreviewUI> >
102 g_print_preview_ui_id_map = LAZY_INSTANCE_INITIALIZER;
103
104 // PrintPreviewUI serves data for chrome://print requests.
105 //
106 // The format for requesting PDF data is as follows:
107 // chrome://print/<PrintPreviewUIID>/<PageIndex>/print.pdf
108 //
109 // Parameters (< > required):
110 // <PrintPreviewUIID> = PrintPreview UI ID
111 // <PageIndex> = Page index is zero-based or
112 // |printing::COMPLETE_PREVIEW_DOCUMENT_INDEX| to represent
113 // a print ready PDF.
114 //
115 // Example:
116 // chrome://print/123/10/print.pdf
117 //
118 // Requests to chrome://print with paths not ending in /print.pdf are used
119 // to return the markup or other resources for the print preview page itself.
HandleRequestCallback(const std::string & path,const content::WebUIDataSource::GotDataCallback & callback)120 bool HandleRequestCallback(
121 const std::string& path,
122 const content::WebUIDataSource::GotDataCallback& callback) {
123 // ChromeWebUIDataSource handles most requests except for the print preview
124 // data.
125 if (!EndsWith(path, "/print.pdf", true))
126 return false;
127
128 // Print Preview data.
129 scoped_refptr<base::RefCountedBytes> data;
130 std::vector<std::string> url_substr;
131 base::SplitString(path, '/', &url_substr);
132 int preview_ui_id = -1;
133 int page_index = 0;
134 if (url_substr.size() == 3 &&
135 base::StringToInt(url_substr[0], &preview_ui_id),
136 base::StringToInt(url_substr[1], &page_index) &&
137 preview_ui_id >= 0) {
138 PrintPreviewDataService::GetInstance()->GetDataEntry(
139 preview_ui_id, page_index, &data);
140 }
141 if (data.get()) {
142 callback.Run(data.get());
143 return true;
144 }
145 // Invalid request.
146 scoped_refptr<base::RefCountedBytes> empty_bytes(new base::RefCountedBytes);
147 callback.Run(empty_bytes.get());
148 return true;
149 }
150
CreatePrintPreviewUISource()151 content::WebUIDataSource* CreatePrintPreviewUISource() {
152 content::WebUIDataSource* source =
153 content::WebUIDataSource::Create(chrome::kChromeUIPrintHost);
154 #if defined(OS_CHROMEOS)
155 source->AddLocalizedString("title",
156 IDS_PRINT_PREVIEW_GOOGLE_CLOUD_PRINT_TITLE);
157 #else
158 source->AddLocalizedString("title", IDS_PRINT_PREVIEW_TITLE);
159 #endif
160 source->AddLocalizedString("loading", IDS_PRINT_PREVIEW_LOADING);
161 source->AddLocalizedString("noPlugin", IDS_PRINT_PREVIEW_NO_PLUGIN);
162 source->AddLocalizedString("launchNativeDialog",
163 IDS_PRINT_PREVIEW_NATIVE_DIALOG);
164 source->AddLocalizedString("previewFailed", IDS_PRINT_PREVIEW_FAILED);
165 source->AddLocalizedString("invalidPrinterSettings",
166 IDS_PRINT_INVALID_PRINTER_SETTINGS);
167 source->AddLocalizedString("printButton", IDS_PRINT_PREVIEW_PRINT_BUTTON);
168 source->AddLocalizedString("saveButton", IDS_PRINT_PREVIEW_SAVE_BUTTON);
169 source->AddLocalizedString("cancelButton", IDS_PRINT_PREVIEW_CANCEL_BUTTON);
170 source->AddLocalizedString("printing", IDS_PRINT_PREVIEW_PRINTING);
171 source->AddLocalizedString("printingToPDFInProgress",
172 IDS_PRINT_PREVIEW_PRINTING_TO_PDF_IN_PROGRESS);
173 #if defined(OS_MACOSX)
174 source->AddLocalizedString("openingPDFInPreview",
175 IDS_PRINT_PREVIEW_OPENING_PDF_IN_PREVIEW);
176 #endif
177 source->AddLocalizedString("destinationLabel",
178 IDS_PRINT_PREVIEW_DESTINATION_LABEL);
179 source->AddLocalizedString("copiesLabel", IDS_PRINT_PREVIEW_COPIES_LABEL);
180 source->AddLocalizedString("examplePageRangeText",
181 IDS_PRINT_PREVIEW_EXAMPLE_PAGE_RANGE_TEXT);
182 source->AddLocalizedString("layoutLabel", IDS_PRINT_PREVIEW_LAYOUT_LABEL);
183 source->AddLocalizedString("optionAllPages",
184 IDS_PRINT_PREVIEW_OPTION_ALL_PAGES);
185 source->AddLocalizedString("optionBw", IDS_PRINT_PREVIEW_OPTION_BW);
186 source->AddLocalizedString("optionCollate", IDS_PRINT_PREVIEW_OPTION_COLLATE);
187 source->AddLocalizedString("optionColor", IDS_PRINT_PREVIEW_OPTION_COLOR);
188 source->AddLocalizedString("optionLandscape",
189 IDS_PRINT_PREVIEW_OPTION_LANDSCAPE);
190 source->AddLocalizedString("optionPortrait",
191 IDS_PRINT_PREVIEW_OPTION_PORTRAIT);
192 source->AddLocalizedString("optionTwoSided",
193 IDS_PRINT_PREVIEW_OPTION_TWO_SIDED);
194 source->AddLocalizedString("pagesLabel", IDS_PRINT_PREVIEW_PAGES_LABEL);
195 source->AddLocalizedString("pageRangeTextBox",
196 IDS_PRINT_PREVIEW_PAGE_RANGE_TEXT);
197 source->AddLocalizedString("pageRangeRadio",
198 IDS_PRINT_PREVIEW_PAGE_RANGE_RADIO);
199 source->AddLocalizedString("printToPDF", IDS_PRINT_PREVIEW_PRINT_TO_PDF);
200 source->AddLocalizedString("printPreviewSummaryFormatShort",
201 IDS_PRINT_PREVIEW_SUMMARY_FORMAT_SHORT);
202 source->AddLocalizedString("printPreviewSummaryFormatLong",
203 IDS_PRINT_PREVIEW_SUMMARY_FORMAT_LONG);
204 source->AddLocalizedString("printPreviewSheetsLabelSingular",
205 IDS_PRINT_PREVIEW_SHEETS_LABEL_SINGULAR);
206 source->AddLocalizedString("printPreviewSheetsLabelPlural",
207 IDS_PRINT_PREVIEW_SHEETS_LABEL_PLURAL);
208 source->AddLocalizedString("printPreviewPageLabelSingular",
209 IDS_PRINT_PREVIEW_PAGE_LABEL_SINGULAR);
210 source->AddLocalizedString("printPreviewPageLabelPlural",
211 IDS_PRINT_PREVIEW_PAGE_LABEL_PLURAL);
212 const base::string16 shortcut_text(base::UTF8ToUTF16(kAdvancedPrintShortcut));
213 #if defined(OS_CHROMEOS)
214 source->AddString(
215 "systemDialogOption",
216 l10n_util::GetStringFUTF16(
217 IDS_PRINT_PREVIEW_CLOUD_DIALOG_OPTION,
218 l10n_util::GetStringUTF16(IDS_GOOGLE_CLOUD_PRINT),
219 shortcut_text));
220 #else
221 source->AddString(
222 "systemDialogOption",
223 l10n_util::GetStringFUTF16(
224 IDS_PRINT_PREVIEW_SYSTEM_DIALOG_OPTION,
225 shortcut_text));
226 #endif
227 source->AddString(
228 "cloudPrintDialogOption",
229 l10n_util::GetStringFUTF16(
230 IDS_PRINT_PREVIEW_CLOUD_DIALOG_OPTION_NO_SHORTCUT,
231 l10n_util::GetStringUTF16(IDS_GOOGLE_CLOUD_PRINT)));
232 #if defined(OS_MACOSX)
233 source->AddLocalizedString("openPdfInPreviewOption",
234 IDS_PRINT_PREVIEW_OPEN_PDF_IN_PREVIEW_APP);
235 #endif
236 source->AddString(
237 "printWithCloudPrintWait",
238 l10n_util::GetStringFUTF16(
239 IDS_PRINT_PREVIEW_PRINT_WITH_CLOUD_PRINT_WAIT,
240 l10n_util::GetStringUTF16(IDS_GOOGLE_CLOUD_PRINT)));
241 source->AddString(
242 "noDestsPromoLearnMoreUrl",
243 chrome::kCloudPrintNoDestinationsLearnMoreURL);
244 source->AddLocalizedString("pageRangeInstruction",
245 IDS_PRINT_PREVIEW_PAGE_RANGE_INSTRUCTION);
246 source->AddLocalizedString("copiesInstruction",
247 IDS_PRINT_PREVIEW_COPIES_INSTRUCTION);
248 source->AddLocalizedString("incrementTitle",
249 IDS_PRINT_PREVIEW_INCREMENT_TITLE);
250 source->AddLocalizedString("decrementTitle",
251 IDS_PRINT_PREVIEW_DECREMENT_TITLE);
252 source->AddLocalizedString("printPagesLabel",
253 IDS_PRINT_PREVIEW_PRINT_PAGES_LABEL);
254 source->AddLocalizedString("optionsLabel", IDS_PRINT_PREVIEW_OPTIONS_LABEL);
255 source->AddLocalizedString("optionHeaderFooter",
256 IDS_PRINT_PREVIEW_OPTION_HEADER_FOOTER);
257 source->AddLocalizedString("optionFitToPage",
258 IDS_PRINT_PREVIEW_OPTION_FIT_TO_PAGE);
259 source->AddLocalizedString(
260 "optionBackgroundColorsAndImages",
261 IDS_PRINT_PREVIEW_OPTION_BACKGROUND_COLORS_AND_IMAGES);
262 source->AddLocalizedString("optionSelectionOnly",
263 IDS_PRINT_PREVIEW_OPTION_SELECTION_ONLY);
264 source->AddLocalizedString("marginsLabel", IDS_PRINT_PREVIEW_MARGINS_LABEL);
265 source->AddLocalizedString("defaultMargins",
266 IDS_PRINT_PREVIEW_DEFAULT_MARGINS);
267 source->AddLocalizedString("noMargins", IDS_PRINT_PREVIEW_NO_MARGINS);
268 source->AddLocalizedString("customMargins", IDS_PRINT_PREVIEW_CUSTOM_MARGINS);
269 source->AddLocalizedString("minimumMargins",
270 IDS_PRINT_PREVIEW_MINIMUM_MARGINS);
271 source->AddLocalizedString("top", IDS_PRINT_PREVIEW_TOP_MARGIN_LABEL);
272 source->AddLocalizedString("bottom", IDS_PRINT_PREVIEW_BOTTOM_MARGIN_LABEL);
273 source->AddLocalizedString("left", IDS_PRINT_PREVIEW_LEFT_MARGIN_LABEL);
274 source->AddLocalizedString("right", IDS_PRINT_PREVIEW_RIGHT_MARGIN_LABEL);
275 source->AddLocalizedString("mediaSizeLabel",
276 IDS_PRINT_PREVIEW_MEDIA_SIZE_LABEL);
277 source->AddLocalizedString("destinationSearchTitle",
278 IDS_PRINT_PREVIEW_DESTINATION_SEARCH_TITLE);
279 source->AddLocalizedString("userInfo", IDS_PRINT_PREVIEW_USER_INFO);
280 source->AddLocalizedString("accountSelectTitle",
281 IDS_PRINT_PREVIEW_ACCOUNT_SELECT_TITLE);
282 source->AddLocalizedString("addAccountTitle",
283 IDS_PRINT_PREVIEW_ADD_ACCOUNT_TITLE);
284 source->AddLocalizedString("cloudPrintPromotion",
285 IDS_PRINT_PREVIEW_CLOUD_PRINT_PROMOTION);
286 source->AddLocalizedString("searchBoxPlaceholder",
287 IDS_PRINT_PREVIEW_SEARCH_BOX_PLACEHOLDER);
288 source->AddLocalizedString("noDestinationsMessage",
289 IDS_PRINT_PREVIEW_NO_DESTINATIONS_MESSAGE);
290 source->AddLocalizedString("showAllButtonText",
291 IDS_PRINT_PREVIEW_SHOW_ALL_BUTTON_TEXT);
292 source->AddLocalizedString("destinationCount",
293 IDS_PRINT_PREVIEW_DESTINATION_COUNT);
294 source->AddLocalizedString("recentDestinationsTitle",
295 IDS_PRINT_PREVIEW_RECENT_DESTINATIONS_TITLE);
296 source->AddLocalizedString("localDestinationsTitle",
297 IDS_PRINT_PREVIEW_LOCAL_DESTINATIONS_TITLE);
298 source->AddLocalizedString("cloudDestinationsTitle",
299 IDS_PRINT_PREVIEW_CLOUD_DESTINATIONS_TITLE);
300 source->AddLocalizedString("manage", IDS_PRINT_PREVIEW_MANAGE);
301 source->AddLocalizedString("setupCloudPrinters",
302 IDS_PRINT_PREVIEW_SETUP_CLOUD_PRINTERS);
303 source->AddLocalizedString("changeDestination",
304 IDS_PRINT_PREVIEW_CHANGE_DESTINATION);
305 source->AddLocalizedString("offlineForYear",
306 IDS_PRINT_PREVIEW_OFFLINE_FOR_YEAR);
307 source->AddLocalizedString("offlineForMonth",
308 IDS_PRINT_PREVIEW_OFFLINE_FOR_MONTH);
309 source->AddLocalizedString("offlineForWeek",
310 IDS_PRINT_PREVIEW_OFFLINE_FOR_WEEK);
311 source->AddLocalizedString("offline", IDS_PRINT_PREVIEW_OFFLINE);
312 source->AddLocalizedString("fedexTos", IDS_PRINT_PREVIEW_FEDEX_TOS);
313 source->AddLocalizedString("tosCheckboxLabel",
314 IDS_PRINT_PREVIEW_TOS_CHECKBOX_LABEL);
315 source->AddLocalizedString("noDestsPromoTitle",
316 IDS_PRINT_PREVIEW_NO_DESTS_PROMO_TITLE);
317 source->AddLocalizedString("noDestsPromoBody",
318 IDS_PRINT_PREVIEW_NO_DESTS_PROMO_BODY);
319 source->AddLocalizedString("noDestsPromoGcpDesc",
320 IDS_PRINT_PREVIEW_NO_DESTS_GCP_DESC);
321 source->AddLocalizedString("learnMore",
322 IDS_LEARN_MORE);
323 source->AddLocalizedString(
324 "noDestsPromoAddPrinterButtonLabel",
325 IDS_PRINT_PREVIEW_NO_DESTS_PROMO_ADD_PRINTER_BUTTON_LABEL);
326 source->AddLocalizedString(
327 "noDestsPromoNotNowButtonLabel",
328 IDS_PRINT_PREVIEW_NO_DESTS_PROMO_NOT_NOW_BUTTON_LABEL);
329 source->AddLocalizedString("couldNotPrint",
330 IDS_PRINT_PREVIEW_COULD_NOT_PRINT);
331 source->AddLocalizedString("registerPromoButtonText",
332 IDS_PRINT_PREVIEW_REGISTER_PROMO_BUTTON_TEXT);
333
334 source->SetJsonPath("strings.js");
335 source->AddResourcePath("print_preview.js", IDR_PRINT_PREVIEW_JS);
336 source->AddResourcePath("images/printer.png",
337 IDR_PRINT_PREVIEW_IMAGES_PRINTER);
338 source->AddResourcePath("images/printer_shared.png",
339 IDR_PRINT_PREVIEW_IMAGES_PRINTER_SHARED);
340 source->AddResourcePath("images/third_party.png",
341 IDR_PRINT_PREVIEW_IMAGES_THIRD_PARTY);
342 source->AddResourcePath("images/third_party_fedex.png",
343 IDR_PRINT_PREVIEW_IMAGES_THIRD_PARTY_FEDEX);
344 source->AddResourcePath("images/google_doc.png",
345 IDR_PRINT_PREVIEW_IMAGES_GOOGLE_DOC);
346 source->AddResourcePath("images/pdf.png", IDR_PRINT_PREVIEW_IMAGES_PDF);
347 source->AddResourcePath("images/mobile.png", IDR_PRINT_PREVIEW_IMAGES_MOBILE);
348 source->AddResourcePath("images/mobile_shared.png",
349 IDR_PRINT_PREVIEW_IMAGES_MOBILE_SHARED);
350 source->SetDefaultResource(IDR_PRINT_PREVIEW_HTML);
351 source->SetRequestFilter(base::Bind(&HandleRequestCallback));
352 source->OverrideContentSecurityPolicyObjectSrc("object-src 'self';");
353 return source;
354 }
355
356 PrintPreviewUI::TestingDelegate* g_testing_delegate = NULL;
357
358 } // namespace
359
PrintPreviewUI(content::WebUI * web_ui)360 PrintPreviewUI::PrintPreviewUI(content::WebUI* web_ui)
361 : ConstrainedWebDialogUI(web_ui),
362 initial_preview_start_time_(base::TimeTicks::Now()),
363 id_(g_print_preview_ui_id_map.Get().Add(this)),
364 handler_(NULL),
365 source_is_modifiable_(true),
366 source_has_selection_(false),
367 dialog_closed_(false) {
368 // Set up the chrome://print/ data source.
369 Profile* profile = Profile::FromWebUI(web_ui);
370 content::WebUIDataSource::Add(profile, CreatePrintPreviewUISource());
371
372 // Set up the chrome://theme/ source.
373 content::URLDataSource::Add(profile, new ThemeSource(profile));
374
375 // WebUI owns |handler_|.
376 handler_ = new PrintPreviewHandler();
377 web_ui->AddMessageHandler(handler_);
378
379 g_print_preview_request_id_map.Get().Set(id_, -1);
380 }
381
~PrintPreviewUI()382 PrintPreviewUI::~PrintPreviewUI() {
383 print_preview_data_service()->RemoveEntry(id_);
384 g_print_preview_request_id_map.Get().Erase(id_);
385 g_print_preview_ui_id_map.Get().Remove(id_);
386 }
387
GetPrintPreviewDataForIndex(int index,scoped_refptr<base::RefCountedBytes> * data)388 void PrintPreviewUI::GetPrintPreviewDataForIndex(
389 int index,
390 scoped_refptr<base::RefCountedBytes>* data) {
391 print_preview_data_service()->GetDataEntry(id_, index, data);
392 }
393
SetPrintPreviewDataForIndex(int index,const base::RefCountedBytes * data)394 void PrintPreviewUI::SetPrintPreviewDataForIndex(
395 int index,
396 const base::RefCountedBytes* data) {
397 print_preview_data_service()->SetDataEntry(id_, index, data);
398 }
399
ClearAllPreviewData()400 void PrintPreviewUI::ClearAllPreviewData() {
401 print_preview_data_service()->RemoveEntry(id_);
402 }
403
GetAvailableDraftPageCount()404 int PrintPreviewUI::GetAvailableDraftPageCount() {
405 return print_preview_data_service()->GetAvailableDraftPageCount(id_);
406 }
407
SetInitiatorTitle(const base::string16 & job_title)408 void PrintPreviewUI::SetInitiatorTitle(
409 const base::string16& job_title) {
410 initiator_title_ = job_title;
411 }
412
413 // static
SetInitialParams(content::WebContents * print_preview_dialog,const PrintHostMsg_RequestPrintPreview_Params & params)414 void PrintPreviewUI::SetInitialParams(
415 content::WebContents* print_preview_dialog,
416 const PrintHostMsg_RequestPrintPreview_Params& params) {
417 if (!print_preview_dialog || !print_preview_dialog->GetWebUI())
418 return;
419 PrintPreviewUI* print_preview_ui = static_cast<PrintPreviewUI*>(
420 print_preview_dialog->GetWebUI()->GetController());
421 print_preview_ui->source_is_modifiable_ = params.is_modifiable;
422 print_preview_ui->source_has_selection_ = params.has_selection;
423 print_preview_ui->print_selection_only_ = params.selection_only;
424 }
425
426 // static
GetCurrentPrintPreviewStatus(int32 preview_ui_id,int request_id,bool * cancel)427 void PrintPreviewUI::GetCurrentPrintPreviewStatus(int32 preview_ui_id,
428 int request_id,
429 bool* cancel) {
430 int current_id = -1;
431 if (!g_print_preview_request_id_map.Get().Get(preview_ui_id, ¤t_id)) {
432 *cancel = true;
433 return;
434 }
435 *cancel = (request_id != current_id);
436 }
437
GetIDForPrintPreviewUI() const438 int32 PrintPreviewUI::GetIDForPrintPreviewUI() const {
439 return id_;
440 }
441
OnPrintPreviewDialogClosed()442 void PrintPreviewUI::OnPrintPreviewDialogClosed() {
443 WebContents* preview_dialog = web_ui()->GetWebContents();
444 printing::BackgroundPrintingManager* background_printing_manager =
445 g_browser_process->background_printing_manager();
446 if (background_printing_manager->HasPrintPreviewDialog(preview_dialog))
447 return;
448 OnClosePrintPreviewDialog();
449 }
450
OnInitiatorClosed()451 void PrintPreviewUI::OnInitiatorClosed() {
452 WebContents* preview_dialog = web_ui()->GetWebContents();
453 printing::BackgroundPrintingManager* background_printing_manager =
454 g_browser_process->background_printing_manager();
455 if (background_printing_manager->HasPrintPreviewDialog(preview_dialog))
456 web_ui()->CallJavascriptFunction("cancelPendingPrintRequest");
457 else
458 OnClosePrintPreviewDialog();
459 }
460
OnPrintPreviewRequest(int request_id)461 void PrintPreviewUI::OnPrintPreviewRequest(int request_id) {
462 if (!initial_preview_start_time_.is_null()) {
463 UMA_HISTOGRAM_TIMES("PrintPreview.InitializationTime",
464 base::TimeTicks::Now() - initial_preview_start_time_);
465 }
466 g_print_preview_request_id_map.Get().Set(id_, request_id);
467 }
468
OnShowSystemDialog()469 void PrintPreviewUI::OnShowSystemDialog() {
470 web_ui()->CallJavascriptFunction("onSystemDialogLinkClicked");
471 }
472
OnDidGetPreviewPageCount(const PrintHostMsg_DidGetPreviewPageCount_Params & params)473 void PrintPreviewUI::OnDidGetPreviewPageCount(
474 const PrintHostMsg_DidGetPreviewPageCount_Params& params) {
475 DCHECK_GT(params.page_count, 0);
476 if (g_testing_delegate)
477 g_testing_delegate->DidGetPreviewPageCount(params.page_count);
478 base::FundamentalValue count(params.page_count);
479 base::FundamentalValue request_id(params.preview_request_id);
480 web_ui()->CallJavascriptFunction("onDidGetPreviewPageCount",
481 count,
482 request_id);
483 }
484
OnDidGetDefaultPageLayout(const PageSizeMargins & page_layout,const gfx::Rect & printable_area,bool has_custom_page_size_style)485 void PrintPreviewUI::OnDidGetDefaultPageLayout(
486 const PageSizeMargins& page_layout, const gfx::Rect& printable_area,
487 bool has_custom_page_size_style) {
488 if (page_layout.margin_top < 0 || page_layout.margin_left < 0 ||
489 page_layout.margin_bottom < 0 || page_layout.margin_right < 0 ||
490 page_layout.content_width < 0 || page_layout.content_height < 0 ||
491 printable_area.width() <= 0 || printable_area.height() <= 0) {
492 NOTREACHED();
493 return;
494 }
495
496 base::DictionaryValue layout;
497 layout.SetDouble(printing::kSettingMarginTop, page_layout.margin_top);
498 layout.SetDouble(printing::kSettingMarginLeft, page_layout.margin_left);
499 layout.SetDouble(printing::kSettingMarginBottom, page_layout.margin_bottom);
500 layout.SetDouble(printing::kSettingMarginRight, page_layout.margin_right);
501 layout.SetDouble(printing::kSettingContentWidth, page_layout.content_width);
502 layout.SetDouble(printing::kSettingContentHeight, page_layout.content_height);
503 layout.SetInteger(printing::kSettingPrintableAreaX, printable_area.x());
504 layout.SetInteger(printing::kSettingPrintableAreaY, printable_area.y());
505 layout.SetInteger(printing::kSettingPrintableAreaWidth,
506 printable_area.width());
507 layout.SetInteger(printing::kSettingPrintableAreaHeight,
508 printable_area.height());
509
510 base::FundamentalValue has_page_size_style(has_custom_page_size_style);
511 web_ui()->CallJavascriptFunction("onDidGetDefaultPageLayout", layout,
512 has_page_size_style);
513 }
514
OnDidPreviewPage(int page_number,int preview_request_id)515 void PrintPreviewUI::OnDidPreviewPage(int page_number,
516 int preview_request_id) {
517 DCHECK_GE(page_number, 0);
518 base::FundamentalValue number(page_number);
519 base::FundamentalValue ui_identifier(id_);
520 base::FundamentalValue request_id(preview_request_id);
521 if (g_testing_delegate)
522 g_testing_delegate->DidRenderPreviewPage(web_ui()->GetWebContents());
523 web_ui()->CallJavascriptFunction(
524 "onDidPreviewPage", number, ui_identifier, request_id);
525 if (g_testing_delegate && g_testing_delegate->IsAutoCancelEnabled())
526 web_ui()->CallJavascriptFunction("autoCancelForTesting");
527 }
528
OnPreviewDataIsAvailable(int expected_pages_count,int preview_request_id)529 void PrintPreviewUI::OnPreviewDataIsAvailable(int expected_pages_count,
530 int preview_request_id) {
531 VLOG(1) << "Print preview request finished with "
532 << expected_pages_count << " pages";
533
534 if (!initial_preview_start_time_.is_null()) {
535 UMA_HISTOGRAM_TIMES("PrintPreview.InitialDisplayTime",
536 base::TimeTicks::Now() - initial_preview_start_time_);
537 UMA_HISTOGRAM_COUNTS("PrintPreview.PageCount.Initial",
538 expected_pages_count);
539 UMA_HISTOGRAM_COUNTS(
540 "PrintPreview.RegeneratePreviewRequest.BeforeFirstData",
541 handler_->regenerate_preview_request_count());
542 initial_preview_start_time_ = base::TimeTicks();
543 }
544 base::FundamentalValue ui_identifier(id_);
545 base::FundamentalValue ui_preview_request_id(preview_request_id);
546 web_ui()->CallJavascriptFunction("updatePrintPreview", ui_identifier,
547 ui_preview_request_id);
548 }
549
OnPrintPreviewDialogDestroyed()550 void PrintPreviewUI::OnPrintPreviewDialogDestroyed() {
551 handler_->OnPrintPreviewDialogDestroyed();
552 }
553
OnFileSelectionCancelled()554 void PrintPreviewUI::OnFileSelectionCancelled() {
555 web_ui()->CallJavascriptFunction("fileSelectionCancelled");
556 }
557
OnCancelPendingPreviewRequest()558 void PrintPreviewUI::OnCancelPendingPreviewRequest() {
559 g_print_preview_request_id_map.Get().Set(id_, -1);
560 }
561
OnPrintPreviewFailed()562 void PrintPreviewUI::OnPrintPreviewFailed() {
563 handler_->OnPrintPreviewFailed();
564 web_ui()->CallJavascriptFunction("printPreviewFailed");
565 }
566
OnInvalidPrinterSettings()567 void PrintPreviewUI::OnInvalidPrinterSettings() {
568 web_ui()->CallJavascriptFunction("invalidPrinterSettings");
569 }
570
print_preview_data_service()571 PrintPreviewDataService* PrintPreviewUI::print_preview_data_service() {
572 return PrintPreviewDataService::GetInstance();
573 }
574
OnHidePreviewDialog()575 void PrintPreviewUI::OnHidePreviewDialog() {
576 WebContents* preview_dialog = web_ui()->GetWebContents();
577 printing::BackgroundPrintingManager* background_printing_manager =
578 g_browser_process->background_printing_manager();
579 if (background_printing_manager->HasPrintPreviewDialog(preview_dialog))
580 return;
581
582 ConstrainedWebDialogDelegate* delegate = GetConstrainedDelegate();
583 if (!delegate)
584 return;
585 delegate->ReleaseWebContentsOnDialogClose();
586 background_printing_manager->OwnPrintPreviewDialog(preview_dialog);
587 OnClosePrintPreviewDialog();
588 }
589
OnClosePrintPreviewDialog()590 void PrintPreviewUI::OnClosePrintPreviewDialog() {
591 if (dialog_closed_)
592 return;
593 dialog_closed_ = true;
594 ConstrainedWebDialogDelegate* delegate = GetConstrainedDelegate();
595 if (!delegate)
596 return;
597 delegate->GetWebDialogDelegate()->OnDialogClosed(std::string());
598 delegate->OnDialogCloseFromWebUI();
599 }
600
OnReloadPrintersList()601 void PrintPreviewUI::OnReloadPrintersList() {
602 web_ui()->CallJavascriptFunction("reloadPrintersList");
603 }
604
OnPrintPreviewScalingDisabled()605 void PrintPreviewUI::OnPrintPreviewScalingDisabled() {
606 web_ui()->CallJavascriptFunction("printScalingDisabledForSourcePDF");
607 }
608
609 // static
SetDelegateForTesting(TestingDelegate * delegate)610 void PrintPreviewUI::SetDelegateForTesting(TestingDelegate* delegate) {
611 g_testing_delegate = delegate;
612 }
613
