1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
|
// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/printing/print_dialog_gtk.h"
#include <fcntl.h>
#include <gtk/gtkpagesetupunixdialog.h>
#include <gtk/gtkprintjob.h>
#include <sys/stat.h>
#include <sys/types.h>
#include "base/file_util.h"
#include "base/file_util_proxy.h"
#include "base/logging.h"
#include "base/synchronization/waitable_event.h"
#include "base/utf_string_conversions.h"
#include "chrome/browser/ui/browser_list.h"
#include "chrome/browser/ui/browser_window.h"
#include "printing/print_settings_initializer_gtk.h"
// static
printing::PrintDialogGtkInterface* PrintDialogGtk::CreatePrintDialog(
PrintingContextCairo* context) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
return new PrintDialogGtk(context);
}
PrintDialogGtk::PrintDialogGtk(PrintingContextCairo* context)
: callback_(NULL),
context_(context),
dialog_(NULL),
gtk_settings_(NULL),
page_setup_(NULL),
printer_(NULL) {
GtkWindow* parent = BrowserList::GetLastActive()->window()->GetNativeHandle();
// TODO(estade): We need a window title here.
dialog_ = gtk_print_unix_dialog_new(NULL, parent);
}
PrintDialogGtk::~PrintDialogGtk() {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
gtk_widget_destroy(dialog_);
dialog_ = NULL;
if (gtk_settings_) {
g_object_unref(gtk_settings_);
gtk_settings_ = NULL;
}
if (page_setup_) {
g_object_unref(page_setup_);
page_setup_ = NULL;
}
if (printer_) {
g_object_unref(printer_);
printer_ = NULL;
}
}
void PrintDialogGtk::ShowDialog(
PrintingContextCairo::PrintSettingsCallback* callback) {
DCHECK(!save_document_event_.get());
callback_ = callback;
// Set modal so user cannot focus the same tab and press print again.
gtk_window_set_modal(GTK_WINDOW(dialog_), TRUE);
// Since we only generate PDF, only show printers that support PDF.
// TODO(thestig) Add more capabilities to support?
GtkPrintCapabilities cap = static_cast<GtkPrintCapabilities>(
GTK_PRINT_CAPABILITY_GENERATE_PDF |
GTK_PRINT_CAPABILITY_PAGE_SET |
GTK_PRINT_CAPABILITY_COPIES |
GTK_PRINT_CAPABILITY_COLLATE |
GTK_PRINT_CAPABILITY_REVERSE);
gtk_print_unix_dialog_set_manual_capabilities(GTK_PRINT_UNIX_DIALOG(dialog_),
cap);
#if GTK_CHECK_VERSION(2, 18, 0)
gtk_print_unix_dialog_set_embed_page_setup(GTK_PRINT_UNIX_DIALOG(dialog_),
TRUE);
#endif
g_signal_connect(dialog_, "response", G_CALLBACK(OnResponseThunk), this);
gtk_widget_show(dialog_);
}
void PrintDialogGtk::PrintDocument(const NativeMetafile* metafile,
const string16& document_name) {
// This runs on the print worker thread, does not block the UI thread.
DCHECK(!BrowserThread::CurrentlyOn(BrowserThread::UI));
// The document printing tasks can outlive the PrintingContext that created
// this dialog.
AddRef();
DCHECK(!save_document_event_.get());
save_document_event_.reset(new base::WaitableEvent(false, false));
BrowserThread::PostTask(
BrowserThread::FILE, FROM_HERE,
NewRunnableMethod(this,
&PrintDialogGtk::SaveDocumentToDisk,
metafile,
document_name));
// Wait for SaveDocumentToDisk() to finish.
save_document_event_->Wait();
}
void PrintDialogGtk::AddRefToDialog() {
AddRef();
}
void PrintDialogGtk::ReleaseDialog() {
Release();
}
void PrintDialogGtk::OnResponse(GtkWidget* dialog, int response_id) {
gtk_widget_hide(dialog_);
switch (response_id) {
case GTK_RESPONSE_OK: {
gtk_settings_ = gtk_print_unix_dialog_get_settings(
GTK_PRINT_UNIX_DIALOG(dialog_));
printer_ = gtk_print_unix_dialog_get_selected_printer(
GTK_PRINT_UNIX_DIALOG(dialog_));
g_object_ref(printer_);
page_setup_ = gtk_print_unix_dialog_get_page_setup(
GTK_PRINT_UNIX_DIALOG(dialog_));
g_object_ref(page_setup_);
// Handle page ranges.
printing::PageRanges ranges_vector;
gint num_ranges;
GtkPageRange* gtk_range =
gtk_print_settings_get_page_ranges(gtk_settings_, &num_ranges);
if (gtk_range) {
for (int i = 0; i < num_ranges; ++i) {
printing::PageRange range;
range.from = gtk_range[i].start;
range.to = gtk_range[i].end;
ranges_vector.push_back(range);
}
g_free(gtk_range);
}
printing::PrintSettings settings;
printing::PrintSettingsInitializerGtk::InitPrintSettings(
gtk_settings_, page_setup_, ranges_vector, false, &settings);
context_->InitWithSettings(settings);
callback_->Run(PrintingContextCairo::OK);
callback_ = NULL;
return;
}
case GTK_RESPONSE_DELETE_EVENT: // Fall through.
case GTK_RESPONSE_CANCEL: {
callback_->Run(PrintingContextCairo::CANCEL);
callback_ = NULL;
return;
}
case GTK_RESPONSE_APPLY:
default: {
NOTREACHED();
}
}
}
void PrintDialogGtk::SaveDocumentToDisk(const NativeMetafile* metafile,
const string16& document_name) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
bool error = false;
if (!file_util::CreateTemporaryFile(&path_to_pdf_)) {
LOG(ERROR) << "Creating temporary file failed";
error = true;
}
if (!error && !metafile->SaveTo(path_to_pdf_)) {
LOG(ERROR) << "Saving metafile failed";
file_util::Delete(path_to_pdf_, false);
error = true;
}
// Done saving, let PrintDialogGtk::PrintDocument() continue.
save_document_event_->Signal();
if (error) {
// Matches AddRef() in PrintDocument();
Release();
} else {
// No errors, continue printing.
BrowserThread::PostTask(
BrowserThread::UI, FROM_HERE,
NewRunnableMethod(this,
&PrintDialogGtk::SendDocumentToPrinter,
document_name));
}
}
void PrintDialogGtk::SendDocumentToPrinter(const string16& document_name) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
GtkPrintJob* print_job = gtk_print_job_new(
UTF16ToUTF8(document_name).c_str(),
printer_,
gtk_settings_,
page_setup_);
gtk_print_job_set_source_file(print_job, path_to_pdf_.value().c_str(), NULL);
gtk_print_job_send(print_job, OnJobCompletedThunk, this, NULL);
}
// static
void PrintDialogGtk::OnJobCompletedThunk(GtkPrintJob* print_job,
gpointer user_data,
GError* error) {
static_cast<PrintDialogGtk*>(user_data)->OnJobCompleted(print_job, error);
}
void PrintDialogGtk::OnJobCompleted(GtkPrintJob* print_job, GError* error) {
if (error)
LOG(ERROR) << "Printing failed: " << error->message;
if (print_job)
g_object_unref(print_job);
base::FileUtilProxy::Delete(
BrowserThread::GetMessageLoopProxyForThread(BrowserThread::FILE),
path_to_pdf_,
false,
NULL);
// Printing finished. Matches AddRef() in PrintDocument();
Release();
}
|
